Marine mushroom-shaped ventilator capable of being automatically opened and closed

Abstract

The marine mushroom-shaped ventilator capable of being automatically opened and closed comprises an air duct, an air cap, a screw rod and a fixing frame, and the lower end of the screw rod is arranged on the fixing frame in a penetrating mode; an upper cover plate is arranged above the hood, and a ventilation opening part is arranged at the top of the hood; a weather tight hopper is arranged between the top of the air duct and the ventilation opening part of the air cap; a rainwater receiving opening is formed in the top of the weather tight hopper; a spring is arranged between the weather tight hopper and the fixing frame; the screw rod penetrates through the upper cover plate, the weather tight hopper and the spring; and a water escape valve is arranged at the bottom of the hood. The device is convenient to use, and can automatically close the air funnel without the need of a sailor to reach the air funnel position for operation under the conditions of severe sea conditions and a large amount of water, seawater cannot enter a cabin, and the safety of the sailor and a ship is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of ships, in particular to an automatically opened and closed mushroom-shaped ventilator for ships. Background Art

[0002] For cabin ventilation of ships, mushroom-shaped ventilators are usually used to exchange air with the outside world. General ship mushroom-shaped ventilators cannot be opened and closed automatically, and need to be opened and closed manually by the crew using a hand wheel. When there are strong winds and waves, the ventilator needs to be closed manually to prevent seawater from entering the cabin through the ventilator. In the harsh environment at sea, the crew often cannot reach the ventilator smoothly and close it manually. In this case, a large amount of water will enter the ventilator, endangering the safety of the ship. When the environment returns to normal, the crew needs to reach the ventilator and open it manually, which increases the workload of the crew.

[0003] In the prior art, the mushroom-shaped ventilator must be opened and closed manually, and the crew must reach the location of the ventilator to open and close the ventilator. In the environment of strong winds and waves at sea, the deck surface needs to be reached by the crew at risk, which endangers the safety of the crew. If the mushroom-shaped ventilator cannot be closed in time, seawater will enter the cabin through the ventilator, endangering the safety of the ship. When the environment returns to normal, the crew needs to reach the ventilator and manually open the ventilator, which increases the workload of the crew. Summary of the invention

[0004] In order to overcome the above-mentioned defects in the prior art, the present invention provides a mushroom-shaped ventilator for ships which can be opened and closed automatically.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A mushroom-shaped marine ventilator which opens and closes automatically comprises a wind tube, a hood fixed on the top of the wind tube, a screw rod passed through the hood and a fixing frame fixed in the wind tube, wherein the lower end of the screw rod is passed through the fixing frame; an upper cover plate is provided above the hood, and a ventilation opening is provided on the top of the hood; a wind and rain-tight bucket which can cover the top of the wind tube is provided between the top of the wind tube and the ventilation opening of the hood; a rainwater receiving interface is provided on the top of the wind and rain-tight bucket; a spring is provided between the wind and rain-tight bucket and the fixing frame; the screw rod passes through the upper cover plate, the wind and rain-tight bucket and the spring; a first ventilation channel is formed between the upper cover plate and the wind hood, and a second ventilation channel is formed between the wind and rain-tight bucket and the wind hood; the ventilation opening on the top of the hood connects the first ventilation channel with the second ventilation channel; a drain valve is provided at the bottom of the hood.

[0007] Furthermore, the upper cover plate and the hood are connected via a fixing rod.

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

[0009] Furthermore, the screw rod is penetrated through the mesh portion.

[0010] Furthermore, the rainwater receiving interface of the wind and rainproof bucket is arranged below the ventilation opening of the hood.

[0011] Furthermore, the weathertight bucket is a structure that is small at the top and large at the bottom; the side surface of the weathertight bucket extends obliquely downward; and the area of ​​the top of the weathertight bucket is smaller than the area of ​​the bottom of the weathertight bucket.

[0012] Furthermore, a drain pipe is provided at the bottom of the wind and rain-tight bucket, and a water outlet of the drain pipe is located outside the air duct.

[0013] Furthermore, the water outlet of the drain pipe is located below the top of the wind tube.

[0014] Furthermore, an upper positioning sleeve is fixedly provided on the upper cover plate, and a screw rod is passed through the upper positioning sleeve; the screw rod and the upper positioning sleeve are threadedly connected; a fixing block is fixedly provided on the screw rod, and the top of the weathertight bucket abuts against the bottom of the fixing block.

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

[0016] The beneficial effects of the present invention are as follows: the present invention is easy to use, and can automatically close the ventilator without the crew having to reach the ventilator position to operate in severe sea conditions or when a large amount of water enters the cabin, so that seawater cannot enter the cabin, thereby ensuring the safety of the crew and the ship. When the environment returns to normal, the ventilator is automatically opened to reduce the workload of the crew. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a schematic diagram of the structure of a preferred embodiment of the present invention when it is in a closed state. DETAILED DESCRIPTION

[0019] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown, an automatically opened and closed mushroom-shaped ventilator for ships comprises a ventilator 26, a hood 21 fixed on the top of the ventilator, a screw rod 29 passing through the hood and a fixing frame 11 fixed in the ventilator, wherein the lower end of the screw rod passes through the fixing frame.

[0021] An upper cover plate 10 is provided above the hood 21. The upper cover plate and the top of the hood are shaped to be high in the middle and low at the edge, so that rainwater can be prevented from entering.

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

[0023] A ventilation opening is provided on the top of the hood 21. 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, other parts of the hood are sealed.

[0024] The ventilation opening of the hood 21 is embedded with a mesh portion 25. Since the position of the mesh portion is the position of the ventilation opening, the ventilation opening is not marked in the figure. The mesh portion can prevent rats and insects, and the mesh portion is a rat-proof and insect-proof net.

[0025] A wind and rain seal 22 capable of covering the top of the wind tube is provided between the top of the wind tube 26 and the ventilation opening of the wind cap 21 .

[0026] The top of the weathertight bucket 22 has a rainwater receiving interface (not shown in the figure). The weathertight bucket can receive water entering from the ventilation opening of the hood.

[0027] A spring 23 is provided between the weathertight container 22 and the fixing frame 11 .

[0028] The screw rod 29 is provided through the upper cover plate 10, the weathertight bucket 22 and the spring 23. The screw rod 29 is also provided through the mesh portion 25.

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

[0030] The rainwater receiving interface of the wind and rainproof bucket 22 is arranged below the ventilation opening of the hood 21 .

[0031] The weathertight bucket is a structure that is small at the top and large at the bottom. The side of the weathertight bucket 22 extends obliquely downward; the area of ​​the top of the weathertight bucket is smaller than the area of ​​the bottom of the weathertight bucket.

[0032] A drain pipe 12 is provided at the bottom of the wind and rain-tight bucket 22 , and a water outlet of the drain pipe 12 is located outside the air cylinder 26 .

[0033] The water outlet of the drain pipe 12 is located below the top of the wind tube.

[0034] A drain valve 13 is provided at the bottom of the hood 21. The drain valve is a one-way automatic check valve. When there is water in the hood, the drain valve discharges the water out of the hood, while the seawater from the outside cannot enter the hood through the valve.

[0035] The upper cover plate 10 is fixed with an upper positioning sleeve 28, and a screw rod 29 is passed through the upper positioning sleeve 28; the screw rod 29 and the upper positioning sleeve 28 are threadedly connected; a fixing block 14 is fixed on the screw rod 29, and the top of the weathertight bucket 22 abuts against the bottom of the fixing block 14. A hand wheel 27 is provided at the top of the screw rod.

[0036] like Figure 1 As shown, when no water enters from the outside, under the action of the spring, the bottom of the weathertight bucket and the top of the wind tube do not touch each other, and the weathertight bucket is away from the wind tube. At this time, the ventilator is in an open state. The external wind passes through the first ventilation channel between the upper cover plate and the hood, the ventilation opening on the top of the hood, the second ventilation channel between the weathertight bucket and the hood, and passes through the bottom of the weathertight bucket to enter the wind tube, thereby completing the ventilation between the cabin and the outside. Figure 1 The arrow direction indicates the wind flow direction.

[0037] When the ventilator is used as an air outlet, the wind flows in the opposite direction.

[0038] When there is no water or a small amount of water enters the weather-tight bucket, since the range of the mesh part (i.e. the location of the ventilation opening) is within the range of the weather-tight bucket, water will enter the weather-tight bucket, then be discharged from the weather-tight bucket through the drain pipe, and finally be discharged through the drain valve.

[0039] When there is a large amount of seawater outside, the seawater enters from the space between the hood and the upper cover plate, passes through the mesh part (i.e. the ventilation opening), and enters the hood. Since the range of the mesh part is within the range of the wind and rain seal, the seawater will directly enter the wind and rain seal. A large amount of seawater will not have time to be discharged through the drain pipe and will gather in the wind and rain seal. Under the action of gravity, the wind and rain seal compresses the spring and moves downward, completely covering the wind tube. Figure 2 As shown, at this time, the ventilator is in a wind and rain-tight closed state, and seawater will not be able to further enter the ventilator, thereby completing the automatic opening and closing waterproof function.

[0040] When a large amount of sea water recedes, the drain pipe will slowly drain the sea water to the bottom of the hood and discharge it through the drain valve. Then, the spring will bounce up the windshield, automatically open the hood, and put the ventilator in the open state.

[0041] The present invention can also realize the opening and closing of the ventilator manually. The hand wheel is manually turned, the screw and the fixed block on the screw move downward, and the fixed block pushes the weathertight bucket to move downward until the weathertight bucket covers the ventilator, thereby realizing the closing of the ventilator. The hand wheel is turned in the opposite direction, the fixed block moves upward with the screw, and the spring bounces the weathertight bucket, thereby realizing the opening of the ventilator.

[0042] The invention is easy to use and can automatically close the ventilator in the case of severe sea conditions and large amounts of water inflow without the crew having to reach the ventilator position for operation, so that seawater cannot enter the cabin, thereby ensuring the safety of the crew and the ship. When the environment returns to normal, the ventilator is automatically opened to reduce the workload of the crew.

[0043] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An automatically opened and closed mushroom-shaped marine ventilator, comprising a ventilator, a hood fixed on the top of the ventilator, a screw rod passing through the hood, and a fixing frame fixed in the ventilator, wherein the lower end of the screw rod passes through the fixing frame; characterized in that: An upper cover is provided above the hood, and a ventilation opening is provided on the top of the hood; a wind and rain-tight bucket capable of covering the top of the wind tube is provided between the top of the wind tube and the ventilation opening of the hood; a rainwater receiving interface is provided on the top of the wind and rain-tight bucket; a spring is provided between the wind and rain-tight bucket and the fixing frame; a screw is passed through the upper cover, the wind and rain-tight bucket and the spring; a first ventilation channel is formed between the upper cover and the hood, and a second ventilation channel is formed between the wind and rain-tight bucket and the hood; the ventilation opening on the top of the hood connects the first ventilation channel and the second ventilation channel; a drain valve is provided at the bottom of the hood.

2. The automatically opening and closing mushroom-shaped ventilator for ships according to claim 1, characterized in that: The upper cover plate and the hood are connected via a fixing rod.

3. The automatically opening and closing mushroom-shaped ventilator for ships according to claim 1, characterized in that: A mesh portion is embedded in the ventilation opening of the hood.

4. The automatically opening and closing mushroom-shaped ventilator for ships according to claim 3, characterized in that: The screw rod is passed through the mesh portion.

5. The automatically opening and closing mushroom-shaped ventilator for ships according to claim 1, characterized in that: The rainwater receiving interface of the wind and rainproof bucket is arranged below the ventilation opening of the hood.

6. The automatically opening and closing mushroom-shaped ventilator for ships as claimed in claim 1, characterized in that: The weathertight bucket is a structure that is small at the top and large at the bottom; the side surfaces of the weathertight bucket extend obliquely downward; and the area of ​​the top of the weathertight bucket is smaller than the area of ​​the bottom of the weathertight bucket.

7. The automatically opening and closing mushroom-shaped ventilator for ships according to claim 1, characterized in that: A drain pipe is provided at the bottom of the wind and rainproof bucket, and the water outlet of the drain pipe is located on the outside of the air duct.

8. The automatically opening and closing mushroom-shaped ventilator for ships according to claim 7, characterized in that: The water outlet of the drain pipe is located below the top of the air duct.

9. The automatically opening and closing mushroom-shaped ventilator for ships as claimed in claim 1, characterized in that: An upper positioning sleeve is fixedly arranged on the upper cover plate, and a screw rod is passed through the upper positioning sleeve; the screw rod and the upper positioning sleeve are threadedly connected; a fixing block is fixedly arranged on the screw rod, and the top of the weathertight bucket abuts against the bottom of the fixing block.

10. The automatically opening and closing mushroom-shaped ventilator for ships according to claim 1, characterized in that: The area of ​​the upper cover plate is larger than the area of ​​the ventilation opening of the hood.

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