Hatch cover ventilation device for ship

Abstract

The utility model provides a marine hatch cover ventilation device, which relates to the hatch cover field, and comprises a cover body, the top of the cover body is provided with a ventilation unit, the top of the ventilation unit is provided with a shielding assembly, the shielding assembly comprises a shielding cover, and the ventilation unit comprises a ventilation cylinder; external air flow can be sucked and conveyed to the inner cavity of the ventilation barrel through operation of the centrifugal fan, impurity particles in the air flow are intercepted through the dust filtering net, moisture of the air flow is adsorbed through the absorbent cotton, then the quality of the sucked air flow is ensured, the filtered air flow can enter the cabin through the cover body, and the air flow is prevented from entering the cabin. The shielding cover is located above the ventilation barrel and the exhaust pipe, so that the exhaust pipe and the ventilation barrel can be shielded, external water flow is prevented from entering the cabin through the ventilation barrel and the exhaust pipe, and the cabin is prevented from being blocked by the external water flow. And the goods quality is influenced.

Description

Technical Field

[0001] This utility model belongs to the field of hatch ventilation, specifically a marine hatch ventilation device. Background Technology

[0002] During operation, the ship's hold is an enclosed space and carries a large amount of cargo. Since the ship operates on the water, moisture easily accumulates in this humid environment. In order to maintain airflow in the hold and prevent the cargo from becoming moldy, ventilation devices are installed at the hatch covers to keep the air circulating in the hold.

[0003] To maintain air circulation within the hold, ventilation systems typically consist of vents or electric fans installed on the hatch cover. The vents allow free airflow, maintaining a balanced airflow within the hold. The electric fans drive the airflow, drawing in external air while expelling internal air naturally, ensuring continuous air exchange and maintaining air quality. However, in actual use, because ships sail on water where the air is humid, direct ventilation through fans or vents without filtration allows moisture and impurities from the outside air to enter the hold. This not only affects the quality of ventilation and dehumidification but also contaminates the cargo, impacting its quality.

[0004] In summary, this utility model provides a marine hatch ventilation device to solve the above-mentioned problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A marine hatch ventilation device includes a hatch body, a ventilation unit on the top of the hatch body, a shielding assembly on the top of the ventilation unit, the shielding assembly including a shield, the ventilation unit including a ventilation cylinder communicating with the hatch body, exhaust pipes communicating with both sides of the top of the hatch body, a centrifugal fan at the upper end of the inner cavity of the ventilation cylinder, and two connecting rings threadedly connected to the lower end of the inner cavity of the ventilation cylinder, the inner cavities of the two connecting rings respectively being provided with a dust filter and a water-absorbing cotton.

[0007] Furthermore, in this utility model, the shield is located above the ventilation duct and the exhaust pipe. A fixing ring is fixedly connected to the surface of the ventilation duct, and electric push rods are fixedly connected to both sides of the top of the fixing ring. The output end of the electric push rod is fixedly connected to the top of the inner cavity of the shield.

[0008] Furthermore, in this invention, a sealing gasket is fixedly connected to the top of the inner cavity of the shield, and the bottom of the sealing gasket contacts the bottom of the ventilation duct and the exhaust pipe.

[0009] Furthermore, in this utility model, a bracket is fixedly connected to the lower end of the inner cavity of the connecting ring, and a rotating rod is fixedly connected to the bottom of the bracket.

[0010] Furthermore, in this utility model, the top of the cover is connected to a connecting cylinder, the bottom of the ventilation cylinder extends into the inner cavity of the connecting cylinder and is threadedly connected to the inner cavity of the connecting cylinder, and a sealing ring is fixedly connected to the top of the connecting cylinder, and the inner wall of the sealing ring is in contact with the ventilation cylinder.

[0011] Furthermore, in this utility model, a support plate is fixedly connected to the upper end of the ventilation duct inner cavity, the bottom of the centrifugal fan is fixedly connected to the top of the support plate, and an intercepting net is fixedly connected to the air inlet end of the centrifugal fan.

[0012] Beneficial effects: This utility model has the following beneficial effects:

[0013] This invention utilizes a centrifugal fan to draw in external airflow and transmit it to the inner cavity of the ventilation duct. A dust filter intercepts impurities in the airflow, while absorbent cotton absorbs moisture, ensuring the quality of the drawn airflow. The filtered airflow enters the compartment through a cover, and the humid airflow inside the compartment is discharged through an exhaust pipe. This ensures airflow circulation within the compartment and prevents moisture buildup that could lead to mold growth on the goods. A shield located above the ventilation duct and exhaust pipe protects them from external water entering the compartment and affecting the quality of the goods. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the ventilation duct of this utility model;

[0016] Figure 3 This is a schematic diagram of the connecting ring and absorbent cotton of this utility model from a downward view.

[0017] Figure 4 This is a schematic diagram of the fixed ring, electric push rod, and shield of this utility model from a downward view.

[0018] In the picture:

[0019] 1. Cover; 11. Connecting cylinder; 12. Sealing ring; 2. Ventilation unit; 21. Ventilation duct; 22. Exhaust pipe; 23. Centrifugal fan; 231. Support plate; 24. Connecting ring; 241. Bracket; 242. Rotating rod; 25. Dust filter; 26. Absorbent cotton; 3. Shielding assembly; 31. Fixing ring; 32. Electric push rod; 33. Shielding cover; 331. Sealing gasket. Detailed Implementation

[0020] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0021] Example 1

[0022] like Figure 1-4 As shown, this is the first embodiment of the present invention. This embodiment provides a marine hatch ventilation device, including a cover 1, a ventilation unit 2 on the top of the cover 1, a shielding component 3 on the top of the ventilation unit 2, the shielding component 3 including a shielding cover 33, the ventilation unit 2 including a ventilation cylinder 21, and the ventilation cylinder 21 communicating with the cover 1. Exhaust pipes 22 are connected to both sides of the top of the cover 1. A centrifugal fan 23 is provided at the upper end of the inner cavity of the ventilation cylinder 21, and a connecting ring 24 is threadedly connected to the lower end of the inner cavity of the ventilation cylinder 21. There are two connecting rings 24, and the inner cavities of the two connecting rings 24 are respectively provided with a dust filter 25 and a water-absorbing cotton 26.

[0023] like Figure 1-4 As shown, by turning on the centrifugal fan 23, the centrifugal fan 23 generates suction, which draws in external airflow and transmits it to the inner cavity of the ventilation duct 21. When the airflow passes through the dust filter 25 and the absorbent cotton 26, the dust filter 25 intercepts impurities in the airflow, and the absorbent cotton 26 absorbs moisture from the airflow, thus ensuring the cleanliness and dryness of the drawn airflow. The filtered airflow enters the compartment through the cover 1, which pushes out the moisture in the compartment and allows the airflow to be discharged through the exhaust pipe 22. This ensures the circulation of airflow in the compartment and prevents moisture accumulation in the compartment from causing the goods to become moldy. The shield 33 is located above the ventilation duct 21 and the exhaust pipe 22, which can shield the exhaust pipe 22 and the ventilation duct 21, preventing external water from entering the compartment through the ventilation duct 21 and the exhaust pipe 22 and affecting the quality of the goods.

[0024] Example 2

[0025] Reference Figure 1-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0026] In this embodiment, the shield 33 is located above the ventilation duct 21 and the exhaust pipe 22. A fixing ring 31 is fixedly connected to the surface of the ventilation duct 21, and electric push rods 32 are fixedly connected to both sides of the top of the fixing ring 31. The output end of the electric push rod 32 is fixedly connected to the top of the inner cavity of the shield 33.

[0027] A sealing gasket 331 is fixedly connected to the top of the inner cavity of the shield 33, and the bottom of the sealing gasket 331 contacts the bottom of the ventilation duct 21 and the exhaust pipe 22.

[0028] A bracket 241 is fixedly connected to the lower end of the inner cavity of the connecting ring 24, and a rotating rod 242 is fixedly connected to the bottom of the bracket 241.

[0029] like Figure 1-4 As shown, the output end of the electric push rod 32 drives the shield 33 to move downward, causing the shield 33 to bring the sealing gasket 331 into contact with the ventilation duct 21 and the exhaust pipe 22, thereby sealing the ventilation duct 21 and the exhaust pipe 22. Conversely, the output end of the electric push rod 32 drives the shield 33 to move upward, causing the sealing gasket 331 to disengage from the ventilation duct 21 and the exhaust pipe 22, thereby allowing the ventilation duct 21 and the exhaust pipe 22 to be unobstructed, facilitating ventilation operations. By rotating the rotating rod 242, the rotating rod 242 drives the bracket 241 and the connecting ring 24 to rotate, and the connecting ring 24 is threadedly connected to the ventilation duct 21. Thus, the connecting ring 24 can gradually separate from the ventilation duct 21 during rotation, thereby facilitating the removal and replacement or cleaning of the dust filter 25 and the absorbent cotton 26.

[0030] Example 3

[0031] Reference Figure 1 and 2 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0032] In this embodiment, the top of the cover 1 is connected to the connecting cylinder 11, the bottom of the ventilation cylinder 21 extends to the inner cavity of the connecting cylinder 11 and is threadedly connected to the inner cavity of the connecting cylinder 11, and a sealing ring 12 is fixedly connected to the top of the connecting cylinder 11, and the inner wall of the sealing ring 12 is in contact with the ventilation cylinder 21.

[0033] A support plate 231 is fixedly connected to the upper end of the inner cavity of the ventilation duct 21, the bottom of the centrifugal fan 23 is fixedly connected to the top of the support plate 231, and an interception net is fixedly connected to the air inlet end of the centrifugal fan 23.

[0034] like Figure 1 and 2As shown, the centrifugal fan 23 can be stably supported by the support plate 231 to ensure the stability of the centrifugal fan 23 during operation. The interception net can intercept impurities in the airflow to prevent impurities from causing wear to the centrifugal fan 23. The sealing ring 12 contacts the ventilation tube 21 to ensure the sealing of the connection between the connecting tube 11 and the ventilation tube 21. By rotating the ventilation tube 21, since the ventilation tube 21 and the connecting tube 11 are threadedly connected, the ventilation tube 21 will gradually disengage from the connecting tube 11 during the rotation of the inner cavity of the connecting tube 11, thereby realizing the disassembly of the ventilation tube 21.

[0035] In use, firstly, by activating the electric push rod 32, the output end of the electric push rod 32 drives the shield 33 to move upward, causing the shield 33 to separate the sealing gasket 331 from the ventilation duct 21 and the exhaust pipe 22, thus ensuring that the ventilation duct 21 and the exhaust pipe 22 are unobstructed. Next, by activating the centrifugal fan 23, the operation of the centrifugal fan 23 generates suction, which draws in external airflow and transmits it to the inner cavity of the ventilation duct 21. When the airflow passes through the dust filter 25 and the absorbent cotton 26, the airflow is filtered by the dust filter 25. The system intercepts impurities and particles, and the absorbent cotton 26 adsorbs moisture from the airflow, ensuring the cleanliness and dryness of the absorbed air. The filtered airflow enters the compartment through the cover 1, expelling moisture from the compartment and allowing the airflow to exit through the exhaust pipe 22. This ensures airflow circulation within the compartment, preventing moisture buildup that could lead to mold growth on the goods. During ventilation, the shield 33, located above the ventilation duct 21 and the exhaust pipe 22, effectively protects the exhaust pipe 22 and the ventilation system. The ventilation duct 21 is used to shield the cargo, preventing external water from entering the compartment through the ventilation duct 21 and exhaust pipe 22 and affecting cargo quality. When ventilation is not required and the ventilation duct 21 and exhaust pipe 22 need to be sealed, the electric push rod 32 is activated. The output end of the electric push rod 32 drives the shield 33 downward, causing the shield 33 to bring the sealing gasket 331 into contact with the ventilation duct 21 and exhaust pipe 22, thereby sealing the ventilation duct 21 and exhaust pipe 22. When the dust filter 25 and absorbent cotton 26 have been used for a long time, they need to be sealed. When replacement or cleaning is required, the ventilation duct 21 is rotated. Since the ventilation duct 21 and the connecting tube 11 are threadedly connected, the ventilation duct 21 will gradually detach from the connecting tube 11 during rotation. Then, the rotating rod 242 is rotated, which drives the bracket 241 and the connecting ring 24 to rotate. The connecting ring 24 is threadedly connected to the ventilation duct 21, and the connecting ring 24 can gradually separate from the ventilation duct 21 during rotation, making it easy to remove the dust filter 25 and the absorbent cotton 26 for replacement or cleaning.

[0036] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0037] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A marine hatch ventilation device, comprising a hatch body (1), characterized in that: The top of the cover (1) is provided with a ventilation unit (2), and the top of the ventilation unit (2) is provided with a shielding component (3). The shielding component (3) includes a shielding cover (33). The ventilation unit (2) includes a ventilation cylinder (21), and the ventilation cylinder (21) is connected to the cover (1). Both sides of the top of the cover (1) are connected with exhaust pipes (22). The upper end of the inner cavity of the ventilation cylinder (21) is provided with a centrifugal fan (23). The lower end of the inner cavity of the ventilation cylinder (21) is threaded with a connecting ring (24), and there are two connecting rings (24). The inner cavities of the two connecting rings (24) are respectively provided with a dust filter (25) and a water-absorbing cotton (26).

2. The marine hatch ventilation device as described in claim 1, characterized in that: The shield (33) is located above the ventilation cylinder (21) and the exhaust pipe (22). A fixing ring (31) is fixedly connected to the surface of the ventilation cylinder (21), and electric push rods (32) are fixedly connected to both sides of the top of the fixing ring (31). The output end of the electric push rod (32) is fixedly connected to the top of the inner cavity of the shield (33).

3. The marine hatch ventilation device as described in claim 1, characterized in that: A sealing gasket (331) is fixedly connected to the top of the inner cavity of the shield (33), and the bottom of the sealing gasket (331) is in contact with the bottom of the ventilation cylinder (21) and the exhaust pipe (22).

4. The marine hatch ventilation device as described in claim 1, characterized in that: A bracket (241) is fixedly connected to the lower end of the inner cavity of the connecting ring (24), and a rotating rod (242) is fixedly connected to the bottom of the bracket (241).

5. The marine hatch ventilation device as described in claim 1, characterized in that: The top of the cover (1) is connected to a connecting cylinder (11), the bottom of the ventilation cylinder (21) extends to the inner cavity of the connecting cylinder (11) and is threadedly connected to the inner cavity of the connecting cylinder (11), and a sealing ring (12) is fixedly connected to the top of the connecting cylinder (11), and the inner wall of the sealing ring (12) is in contact with the ventilation cylinder (21).

6. The marine hatch ventilation device as described in claim 1, characterized in that: The upper end of the ventilation duct (21) is fixedly connected to a support plate (231), the bottom of the centrifugal fan (23) is fixedly connected to the top of the support plate (231), and the air inlet end of the centrifugal fan (23) is fixedly connected to an interception net.

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