A waterproof and dustproof device for a cargo hold ventilation opening of a ship

By designing a waterproof and dustproof device, the problem of existing devices being unable to effectively prevent moisture and dust from entering the cargo hold was solved. This enabled quick disassembly and effective drainage, ensuring cargo safety, simplifying filter replacement, and improving operational efficiency.

CN224375879UActive Publication Date: 2026-06-19YANTAI UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANTAI UNIV
Filing Date
2025-08-11
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing ship cargo hold ventilation systems are ineffective in preventing moisture and dust from entering the cargo hold, causing the cargo to become damp, deteriorate, or be damaged. At the same time, replacing the filters is cumbersome and affects operational efficiency.

Method used

A waterproof and dustproof device was designed, comprising a ventilation duct, mounting plate, drainage assembly, protective mechanism, air guide mechanism, portable mechanism, and filter assembly. The device achieves quick disassembly and effective drainage through the setting of annular groove, drain outlet, rectangular groove, sliding plate, and protective railing; the combination of baffle and air guide plate prevents rainwater backflow; and the use of dust filter and water-absorbing sponge filters dust and water droplets.

Benefits of technology

It effectively prevents moisture and dust from entering the cargo hold, ensuring dry air and cargo safety, simplifies maintenance and filter replacement processes, and improves ship operating efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of ship cargo hold, specifically is a kind of ship cargo hold ventilation opening waterproof dustproof device, including ventilation pipe and water delivery pipe;The top of ventilation pipe is fixedly installed with mounting plate, the inner wall of mounting plate is provided with drainage component, the inner wall of ventilation pipe is provided with protection mechanism;The bottom of the inner wall of sliding plate is provided with air guide mechanism, the bottom of the inner wall of ventilation pipe is provided with portable mechanism;Through the setting of annular notch, drain, rectangle groove, sliding plate and guardrail, the establishment of annular notch can make the water on clamping plate directly flow into the inner wall of mounting plate, prevent water source from flowing into the inside of ventilation pipe, the establishment of drain can drain the water stored in the inside of annular notch to sea, prevent water flow from accumulating, thereby causing unnecessary trouble, the establishment of rectangle groove can make sliding plate and guardrail have quick-release function, so that crew can be more convenient when maintaining.
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Description

Technical Field

[0001] This utility model belongs to the field of ship cargo hold technology, specifically a waterproof and dustproof device for ship cargo hold ventilation openings. Background Technology

[0002] During ship transportation, cargo hold ventilation openings play a crucial role in maintaining air circulation within the hold and preventing cargo from being damaged by moisture or gas buildup. However, ships are constantly exposed to the complex and ever-changing marine environment, making ventilation openings highly susceptible to the intrusion of seawater, rainwater, and pollutants such as sand and salt spray in the air. Once moisture or dust enters the cargo hold, it can lead to cargo becoming damp, spoiled, or moldy, or even cause serious damage and significant economic losses.

[0003] Currently, common waterproofing and dustproofing devices for ship cargo hold vents have many shortcomings. Some devices use simple baffles or filter structures, which can block dust to some extent, but cannot effectively isolate moisture. A large amount of rainwater and seawater can still seep into the cargo hold through the gaps in the vents. On the other hand, some devices with waterproofing functions have unreasonable drainage structures, resulting in water accumulation that cannot be discharged in time. Long-term residual moisture can not only corrode the vent structure, but may also cause secondary leaks. In addition, most existing filters are fixed installations. When the filters are clogged with dust and debris, replacement is cumbersome and requires a lot of time and manpower, seriously affecting the normal operating efficiency of the ship.

[0004] Therefore, this utility model provides a waterproof and dustproof device for the ventilation opening of a ship's cargo hold. Utility Model Content

[0005] To overcome the shortcomings of the existing technology and solve at least one of the problems mentioned in the background technology, a waterproof and dustproof device for the ventilation opening of a ship's cargo hold is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A waterproof and dustproof device for a ship's cargo hold ventilation opening, comprising a ventilation pipe and a water supply pipe; a mounting plate is fixedly installed on the top of the ventilation pipe, a drainage component is provided on the inner wall of the mounting plate, and a protective mechanism is provided on the inner wall of the ventilation pipe; a wind guiding mechanism is provided at the bottom of the inner wall of the sliding plate, and a portable mechanism is provided at the bottom of the inner wall of the ventilation pipe; a filter component is provided at the bottom of the inner wall of the ventilation pipe; the drainage component includes an annular groove and a drain outlet, the annular groove being opened on the top of the mounting plate, and the drain outlet being annularly opened within the annular groove on the inner wall of the mounting plate; the annular groove allows water on the clamp to flow directly into the inner wall of the mounting plate, preventing water from flowing into the interior of the ventilation pipe, and the drain outlet allows water stored inside the annular groove to be discharged into the sea, preventing water accumulation and thus avoiding unnecessary trouble.

[0007] Preferably, the rectangular groove includes a rectangular groove, a sliding plate, and a guardrail. The rectangular groove is formed on both sides of the top of the inner wall of the ventilation duct. The sliding plate is slidably installed on the inner wall of the ventilation duct through the rectangular groove. The top of the inner wall of the sliding plate is fixedly installed with the guardrail. The guardrail is located in an annular groove formed on the top of the mounting plate. In this design, the rectangular groove enables the sliding plate and the guardrail to have a quick-release function, making it more convenient for crew members to remove the guardrail without carrying tools during maintenance. The combined use of the sliding plate and the guardrail can prevent crew members from falling into the ventilation duct when walking on the deck.

[0008] Preferably, the air guiding mechanism includes a guide plate, an air guide plate, and an outlet. Two sets of guide plates are provided, and the two sets of guide plates are fixedly installed in an alternating manner on the bottom of the inner wall of the slide plate. The side of the guide plate away from the ventilation pipe is fixedly installed with the air guide plate. The inner wall of the ventilation pipe has an outlet on the side near the guide plate. In this scheme, the cooperation of the two sets of guide plates can guide the water entering the ventilation pipe to the outlets on both sides and discharge it through the water supply pipe, effectively preventing rainwater from flowing back into the cargo hold. The air guide plate can guide the air so that it can pass smoothly.

[0009] Preferably, the portable mechanism includes fixed blocks, a movable frame, and pull blocks. Four sets of fixed blocks are arranged in a ring and fixedly installed at the bottom of the inner wall of the ventilation duct. The movable frame is movably installed on top of the fixed blocks and is movably installed with the ventilation duct. The two sides of the top of the movable frame are fixedly installed with pull blocks. In this design, the fixed blocks provide support for the movable frame, allowing it to be stably suspended on the inner wall. The combined use of the movable frame and pull blocks facilitates user access and makes replacing the filter components more convenient.

[0010] Preferably, the filter assembly includes a dust filter and an absorbent sponge. The dust filter is fixedly installed on the inner wall of the movable frame, and the absorbent sponge is fixedly installed on the bottom of the movable frame. In this design, the dust filter can filter out dust in the air, preventing dust from entering the cargo hold and affecting the health of the crew, and the absorbent sponge can absorb any remaining water droplets in the air, further preventing water droplets from entering the cargo hold and contaminating the cargo.

[0011] Preferably, the water supply pipe is provided in two sets, and the two sets of water supply pipes are fixedly installed on both sides of the surface of the ventilation pipe near the outlet. In this scheme, the water supply pipe can discharge the water intercepted inside the ventilation pipe to the sea or a water storage tank, preventing water accumulation from causing the loss of the interception effect of the air guide mechanism and ensuring that the air guide mechanism can be used normally.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The waterproof and dustproof device for a ship's cargo hold ventilation opening, as described in this utility model, utilizes an annular groove, a drain outlet, a rectangular groove, a sliding plate, and a guardrail. The annular groove allows water on the clamping plate to flow directly into the inner wall of the mounting plate, preventing water from flowing into the ventilation duct. The drain outlet allows water stored inside the annular groove to be discharged into the sea, preventing water accumulation and unnecessary trouble. The rectangular groove enables the sliding plate and guardrail to have a quick-release function, making it more convenient for crew members to remove the guardrail without carrying tools during maintenance. The combined use of the sliding plate and guardrail prevents crew members from falling into the ventilation duct while walking on the deck.

[0014] 2. The waterproof and dustproof device for the ventilation opening of a ship's cargo hold, as described in this utility model, uses a guide plate, a wind deflector, and an outlet to guide water entering the ventilation pipe to the outlets on both sides through the cooperation of two sets of guide plates, and discharges it through the water supply pipe, effectively preventing rainwater from flowing back into the cargo hold. The wind deflector can guide air so that it can pass through smoothly. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a front perspective view of the present invention;

[0017] Figure 2 This is a partial structural diagram of the present invention;

[0018] Figure 3 This is a half-sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the portable mechanism structure in this utility model.

[0020] Legend:

[0021] 1. Ventilation duct; 2. Mounting plate; 3. Drainage assembly; 31. Annular groove; 32. Drain outlet; 4. Protective mechanism; 41. Rectangular groove; 42. Slide plate; 43. Guardrail; 5. Air guide mechanism; 51. Guide plate; 52. Air guide plate; 53. Exhaust outlet; 6. Portable mechanism; 61. Fixed block; 62. Movable frame; 63. Pull block; 7. Filter assembly; 71. Dust filter screen; 72. Absorbent sponge; 80. Water supply pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 4 As shown in the embodiment of this utility model, a waterproof and dustproof device for a ship's cargo hold ventilation opening includes a ventilation pipe 1 and a water supply pipe 80. A mounting plate 2 is fixedly installed on the top of the ventilation pipe 1, and a drainage component 3 is provided on the inner wall of the mounting plate 2. A protective mechanism 4 is provided on the inner wall of the ventilation pipe 1. An air guiding mechanism 5 is provided at the bottom of the inner wall of the sliding plate 42, and a portable mechanism 6 is provided at the bottom of the inner wall of the ventilation pipe 1. A filter component 7 is provided at the bottom of the inner wall of the ventilation pipe 1. The drainage component 3 includes an annular groove 31 and a drain outlet 32. An annular slot 31 is formed at the top of the mounting plate 2, and a drain outlet 32 ​​is formed annularly within the annular slot 31 on the inner wall of the mounting plate 2. A rectangular groove 41 includes a rectangular groove 41, a sliding plate 42, and a guardrail 43. The rectangular groove 41 is formed on both sides of the top of the inner wall of the ventilation duct 1. The sliding plate 42 is slidably installed on the inner wall of the ventilation duct 1 through the rectangular groove 41. The top of the inner wall of the sliding plate 42 is fixedly installed to the guardrail 43, which is located within the annular slot 31 at the top of the mounting plate 2. The air guiding mechanism 5 includes... The system includes a deflector plate 51, an air guide plate 52, and an outlet 53. Two sets of deflector plates 51 are provided, and the two sets of deflector plates 51 are staggered and fixedly installed on the bottom of the inner wall of the slide plate 42. The side of the deflector plate 51 away from the ventilation duct 1 is fixedly installed with the air guide plate 52. Outlets 53 are provided on both sides of the inner wall of the ventilation duct 1 near the deflector plates 51. The portable mechanism 6 includes fixed blocks 61, a movable frame 62, and a pull block 63. Four sets of fixed blocks 61 are provided, and the four sets of fixed blocks 61 are fixedly installed in a ring shape on the ventilation duct 1. At the bottom of the inner wall, the movable frame 62 is movably installed on the top of the fixed block 61. The movable frame 62 is movably installed with the ventilation pipe 1. The two sides of the top of the movable frame 62 are fixedly installed with the pull block 63. The filter assembly 7 includes a dust filter 71 and a water-absorbing sponge 72. The dust filter 71 is fixedly installed on the inner wall of the movable frame 62, and the water-absorbing sponge 72 is fixedly installed at the bottom of the movable frame 62. Two sets of water supply pipes 80 are provided. The two sets of water supply pipes 80 are fixedly installed on both sides of the surface of the ventilation pipe 1 near the outlet 53.

[0025] like Figures 1 to 4As shown, the annular groove 31 allows water on the clamp to flow directly into the inner wall of the mounting plate 2, preventing water from flowing into the ventilation duct 1. The drain outlet 32 ​​drains the water stored inside the annular groove 31 into the sea, preventing water accumulation and unnecessary trouble. The rectangular groove 41 allows the sliding plate 42 and the guardrail 43 to have a quick-release function, making it easier for crew members to remove the guardrail 43 without tools during maintenance. The combined use of the sliding plate 42 and the guardrail 43 prevents crew members from falling into the ventilation duct 1 while walking on the deck. The cooperation of the two sets of guide plates 51 guides water entering the ventilation duct 1 to the drain outlets 53 on both sides and discharges it through the water pipe 80. To effectively prevent rainwater from flowing back into the cargo hold, the air deflector 52 can guide air to pass through smoothly. The fixed block 61 can provide support for the movable frame 62, allowing it to be suspended stably on the inner wall. The cooperation between the movable frame 62 and the pull block 63 makes it convenient for users to pick up and remove the filter assembly 7, making it easier to replace the filter assembly 7. The dust filter 71 can filter out dust in the air, preventing dust from entering the cargo hold and affecting the health of the crew. The water-absorbing sponge 72 can absorb the remaining water droplets in the air, further preventing water droplets from entering the cargo hold and contaminating the cargo. The water pipe 80 can discharge the water intercepted inside the ventilation pipe 1 to the sea or water storage tank, preventing water accumulation from causing the air deflector 5 to lose its interception effect and ensuring that the air deflector 5 can be used normally.

[0026] Working principle: During operation, first install the ventilation pipe 1 to the ventilation opening, then fix the mounting plate 2 to the cargo ship deck. Next, the user picks up the pull block 63 and slides the movable frame 62, connected to the dust filter 71, through the inner wall of the ventilation pipe 1 above the fixed block 61. Then, pick up the guardrail 43 and align the sliding plate 42 with the rectangular groove 41, sliding it from top to bottom to the inner wall of the ventilation pipe 1. It is then ready for use. During use, such as when crew members are cleaning the deck, water will flow through the deck into the annular groove 31 on the inner wall of the mounting plate 2. The water will then be discharged through the drain outlet 32 ​​and flow into the sea. When waves come or it rains, water will directly flow into the interior of the ventilation pipe 1 through the guardrail 43. When the water enters the ventilation pipe 1, most of the water will flow towards the outlet 53 through the slope of the top guide plate 51. Water is discharged through the water pipe 80, while a small amount of water falls onto the surface of the bottom guide plate 51. As mentioned above, the bottom guide plate 51 can discharge the residual water outward, ensuring that the water flow does not pass directly through the ventilation pipe 1, so that the water source can be intercepted in the ventilation pipe 1. The remaining air will flow to the movable frame 62 through the air guide plate 52, and then be filtered by the dust filter 71 to isolate the dust in the air. The filtered air will then reach the water-absorbing sponge 72. When the air passes through the water-absorbing sponge 72, the water-absorbing sponge 72 will absorb the residual water droplets in the air and some of the water splashed down from the surface of the guide plate 51, so that the air entering the cargo hold is clean and dry. When the dust filter 71 needs to be replaced, the user only needs to pull the guardrail 43 upward, and then take out the dust filter 71 through the pull block 63 for replacement.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof and dustproof device for a ventilation opening of a cargo hold of a ship, comprising a ventilation pipe (1) and a water delivery pipe (80); characterized in that: A mounting plate (2) is fixedly installed on the top of the ventilation pipe (1), a drainage component (3) is provided on the inner wall of the mounting plate (2), and a protective mechanism (4) is provided on the inner wall of the ventilation pipe (1). The drainage component (3) includes an annular groove (31) and a drain outlet (32). The annular groove (31) is opened on the top of the mounting plate (2), and the drain outlet (32) is opened in an annular shape in the annular groove (31) opened on the inner wall of the mounting plate (2). The protective mechanism (4) includes a rectangular groove (41), a sliding plate (42), and a guardrail (43). The rectangular groove (41) is opened on both sides of the top of the inner wall of the ventilation pipe (1). The sliding plate (42) is slidably installed on the inner wall of the ventilation pipe (1) through the opening of the rectangular groove (41). The top of the inner wall of the sliding plate (42) is fixedly installed with the guardrail (43). The guardrail (43) is located in the annular groove (31) opened on the top of the mounting plate (2).

2. A device for preventing water and dust from entering a ventilation opening of a cargo hold of a ship according to claim 1, characterized in that: The bottom of the inner wall of the skateboard (42) is provided with an air guide mechanism (5), and the bottom of the inner wall of the ventilation pipe (1) is provided with a portable mechanism (6).

3. A device for preventing water and dust from entering a ventilation opening of a cargo hold of a ship according to claim 2, characterized in that: A filter assembly (7) is provided at the bottom of the inner wall of the ventilation duct (1).

4. A device for preventing water and dust from entering a ventilation opening of a cargo hold of a ship according to claim 3, characterized in that: The air guiding mechanism (5) includes a guide plate (51), an air guide plate (52), and an outlet (53). There are two sets of guide plates (51). The two sets of guide plates (51) are fixedly installed in an alternating manner on the bottom of the inner wall of the slide plate (42). The side of the guide plate (51) away from the ventilation pipe (1) is fixedly installed with the air guide plate (52). The inner walls of the ventilation pipe (1) are provided with outlets (53) on the side of the inner wall close to the guide plate (51).

5. A device for preventing water and dust from entering a ventilation opening of a cargo hold of a ship according to claim 4, characterized in that: The portable mechanism (6) includes a fixed block (61), a movable frame (62), and a pull block (63). The fixed block (61) is provided in four sets, and the four sets of fixed blocks (61) are fixedly installed in a ring at the bottom of the inner wall of the ventilation pipe (1). The movable frame (62) is movably installed on the top of the fixed block (61). The movable frame (62) is movably installed with the ventilation pipe (1), and the two sides of the top of the movable frame (62) are fixedly installed with the pull block (63).

6. A waterproof and dustproof device for a ship's cargo hold ventilation opening according to claim 5, characterized in that: The filter assembly (7) includes a dust filter (71) and a water-absorbing sponge (72). The dust filter (71) is fixedly installed on the inner wall of the movable frame (62), and the water-absorbing sponge (72) is fixedly installed on the bottom of the movable frame (62).

7. A device for preventing water and dust from entering a ventilation opening of a cargo hold of a ship according to claim 6, characterized in that: The water supply pipe (80) is provided in two sets, and the two sets of water supply pipe (80) are fixedly installed on both sides of the surface of the ventilation pipe (1) near the outlet (53).