Novel rectangular ventilator

Abstract

The utility model discloses a novel rectangular ventilator, which relates to the technical field of ship design, and comprises a hood and a cylinder body, and the cylinder body is inserted into the hood from the lower part of the hood; shutters are mounted on the peripheral side walls of the hood, and vertical through grooves are formed in the shutters; a wind and rain tight cover capable of moving up and down along the screw rod is installed in the wind cap, the side portion of the wind and rain tight cover is fixedly connected with an opening and closing indicating rod, and the opening and closing indicating rod horizontally extends outwards to the blind window, penetrates through a penetrating groove in the blind window and extends out of the blind window. A protective net is detachably mounted in the cylinder body and close to the bottom end of the cylinder body; the protective net is detachably installed at the position, close to the bottom end, in the barrel body, and sailors can conveniently conduct daily disassembly and maintenance; an opening and closing indicating rod is arranged on the side face of the ventilator, observation is facilitated, daily passing and maintenance work of sailors is not affected, and the top face of the hood can be used as a platform.

Description

Technical Field

[0001] The utility model relates to the technical field of ship design, in particular to a novel rectangular ventilator. Background Art

[0002] Marine rectangular ventilators are a common cargo hold ventilation device on container ships. They are generally located on the main deck, flush with the first layer of the lashing bridge platform, and are a must-pass for crew members. The protective nets of conventional rectangular ventilators are located on the shutters on all four sides of the hood, and the open and close indicator rods of the ventilators are located on the top of the hood and protrude from the top plate. Because such rectangular ventilators are usually located between hatch coaming structures, the front and rear space distance is small, making it impossible to remove the shutters and clean the protective nets. Over time, the protective nets will become clogged and not be cleaned in time, which will seriously affect the ventilation effect of the cargo hold. In severe cases, it will cause excessive back pressure on the fan and burn the motor, posing certain safety hazards.

[0003] Secondly, during the actual operation of the ship, the cargo hold ventilator is always in the open state, and its opening and closing indicator rod is always at the highest position of the protruding hood top plate. Generally, there are ventilators distributed in the middle of the lashing bridge platform, and the top surface of the ventilator is used as a personnel passage platform. When the crew passes through the lashing bridge platform, they will pass through the ventilator. The protruding opening and closing indicator rod on the top of the ventilator may trip or scratch the crew, posing a certain safety hazard. At present, most ships are still using this type of ventilator. Generally, crew members will be extra careful when passing through this type of ventilator to prevent scratches. Once the crew is negligent and fails to avoid it in time, they are likely to trip and fall. Utility Model Content

[0004] The purpose of the utility model is to provide a new rectangular ventilation duct, in which a protective net is detachably installed near the bottom end of the duct, which is convenient for daily disassembly and maintenance by the crew; an opening and closing indicator rod is provided on the side of the ventilation duct, which is convenient for observation without affecting the daily passage and maintenance work of the crew; and the top surface of the hood can also be used as a platform.

[0005] The utility model comprises a hood and a cylinder, wherein the cylinder is inserted into the hood from the bottom of the hood; shutters are installed on the four side walls of the hood, and the shutters are provided with vertical through slots; a weathertight cover that can move up and down along a screw is installed in the hood, and an opening and closing indicator rod is fixed to the side of the weathertight cover, and the opening and closing indicator rod extends horizontally outward to the shutter, passes through the through slot on the shutter, and extends to the outside of the shutter; a protective net is detachably installed on the inside of the cylinder near the bottom end of the cylinder.

[0006] Preferably, several seat plates are fixedly provided inside the cylinder near the bottom end of the cylinder, and seat plate holes are provided on the seat plates that pass through the seat plates; U-shaped clamps are provided around the protective net body, and the protective net body is fixedly clamped in the U-shaped clamps. Through holes are provided on the U-shaped clamps at positions corresponding to the seat plate holes, and the protective net is detachably connected to the seat plate by fasteners.

[0007] Preferably, the outer end portion of the opening and closing indicator rod is semicircular in shape.

[0008] Preferably, the through slot is provided in the middle of the shutter, thereby dividing the shutter into two equal left and right parts.

[0009] Preferably, an upper sealing plate is fixedly provided above the through-groove, and a lower sealing plate is fixedly provided below the through-groove.

[0010] In summary, the present invention has the following beneficial effects:

[0011] 1. The protective net of the rectangular ventilation duct of the utility model is detachably mounted on the bottom of the duct, leaving space for disassembly. This facilitates the crew to dismantle and clean the protective net according to the needs of regular ship maintenance, thereby improving the cabin ventilation effect and avoiding the serious impact on cabin ventilation effect caused by the clogging of the protective net that cannot be cleaned in time. In serious cases, it will cause excessive back pressure on the fan and burn the motor, thus posing a safety hazard.

[0012] 2. A solution is provided to the problem that the current ventilation duct opening and closing indicator rod is located at the top of the hood and protrudes above the hood height, which affects the passage of crew members. The opening and closing indicator rod is set at the shutter position on the side of the hood. This makes it convenient to observe the opening and closing status without affecting the passage of crew members, which can effectively prevent the occurrence of safety accidents. At the same time, the top of the hood can also be connected to the surrounding platform and used as a passage platform, thereby reducing the number of outfitting platforms, reducing weight and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of a new rectangular ventilator in the present utility model;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a structural diagram of the protective net;

[0016] Figure 4 This is a schematic diagram of the installation position of the open and close indicator rod.

[0017] In the figure: 1. hood; 2. cylinder; 3. shutter; 301. through slot; 302. upper sealing plate; 303. lower sealing plate; 4. screw; 5. weathertight cover; 6. opening and closing indicator rod; 7. protective net; 8. seat plate; 9. U-shaped clamp; 10. flange; 11. cover plate; 12. fasteners. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] The orientations mentioned in this specification are based on the orientations of the novel rectangular ventilator of the present invention during normal operation, and do not limit the orientations during storage and transportation. They only represent relative positional relationships, not absolute positional relationships.

[0020] like Figures 1 to 4 As shown together, a new rectangular ventilation duct includes a hood 1 and a cylinder body 2, and the cylinder body 2 is inserted into the hood 1 from the bottom of the hood 1; shutters 3 are installed on the four side walls of the hood 1, and the shutters 3 are provided with vertical through grooves 301; a weathertight cover 5 that can move up and down along the screw 4 is installed in the hood 1, and an opening and closing indicator rod 6 is fixed to the side of the weathertight cover 5, and the opening and closing indicator rod 6 extends horizontally outward to the shutter 3, passes through the through groove 301 on the shutter 3, and extends to the outside of the shutter 3.

[0021] The position of the opening and closing indicator rod 6 is convenient for crew members to observe. The outer end of the opening and closing indicator rod 6 is polished into a rounded semicircular shape, and the protrusion is short, which does not affect the crew's equipment maintenance or passage around it, and can effectively prevent the occurrence of safety accidents.

[0022] Furthermore, a through groove 301 is provided in the middle of the shutter 3, thereby dividing the shutter 3 into two equal parts on the left and right, so that the shutter 3 is symmetrical in shape, which is convenient for production and installation, and more beautiful; an upper sealing plate 302 is fixed above the through groove 301, and a lower sealing plate 303 is fixed below the through groove 301. The upper sealing plate 302 and the lower sealing plate 303 serve as a limiting mechanism for the opening and closing indicator rod 6, which can limit the opening and closing indicator rod 6 to move up and down in the through groove 301.

[0023] A protective net 7 is detachably installed inside the cylinder 2 near the bottom end of the cylinder 2. The main body of the protective net 7 is made of wire mesh, and the mesh number can be selected according to user needs. Commonly used mesh numbers are 3 mesh / inch (rodent prevention), 16 mesh / inch (insect prevention), and 30 mesh / inch (fire prevention).

[0024] The inside of the cylinder 2 is fixed with several seat plates 8 near the bottom end of the cylinder 2, and the seat plates 8 are provided with seat plate holes passing through the seat plates 8; U-shaped clamps 9 are provided around the protective net 7, and the protective net 7 is fixedly clamped in the U-shaped clamps 9 on all sides. Through holes are provided on the U-shaped clamps 9 at corresponding positions of the seat plate holes, and the protective net 7 is detachably connected to the seat plate 8 by fasteners 12; a flange 10 is provided at the lower end of the cylinder 2, and a distance is left between the protective net 7 and the flange 10 of the cylinder 2. Preferably, in this embodiment, the distance is about 50 mm; fasteners 12 are used to detachably attach the protective net 7 to the seat plate 8. According to the needs of regular maintenance of the ship, it is convenient for the crew to disassemble and clean the protective net 7, which can improve the ventilation effect of the cabin and avoid seriously affecting the ventilation effect of the cabin due to blockage of the protective net 7 and failure to clean it in time. In severe cases, it will cause the fan back pressure to be too large and burn the motor, thereby causing safety hazards.

[0025] When in use, open the cover 11, install the hand wheel, and rotate the hand wheel to control the wind and rain tight cover 5 to move upward or downward, thereby opening or closing the ventilator; when the opening and closing indicator rod 6 is seen moving upward, it means that the ventilator is opening, and the ventilator is fully opened when the opening and closing indicator rod 6 moves to the upper sealing plate 302 position; when the opening and closing indicator rod 6 is seen moving downward, it means that the ventilator is closing, and the ventilator is fully closed when the opening and closing indicator rod 6 moves to the lower sealing plate 303 position.

[0026] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A new rectangular ventilator, characterized by: The invention comprises a hood (1) and a cylinder (2), wherein the cylinder (2) is inserted into the hood (1) from the bottom of the hood (1); shutters (3) are installed on the four side walls of the hood (1), and the shutters (3) are provided with vertical through slots (301); a weathertight cover (5) capable of moving up and down along a screw (4) is installed in the hood (1), and an opening and closing indicator rod (6) is fixed to the side of the weathertight cover (5), and the opening and closing indicator rod (6) extends horizontally outward to the shutter (3), passes through the through slot (301) on the shutter (3), and extends to the outside of the shutter (3); a protective net (7) is detachably installed inside the cylinder (2) near the bottom end of the cylinder (2).

2. A novel rectangular ventilator according to claim 1, characterized in that: A plurality of seat plates (8) are fixedly provided inside the cylinder (2) near the bottom end of the cylinder (2), and the seat plates (8) are provided with seat plate holes penetrating the seat plates (8); U-shaped clamps (9) are provided around the plate body of the protective net (7), and the plate body of the protective net (7) is fixedly clamped in the U-shaped clamps (9) around the plate body, and through holes are provided on the U-shaped clamps (9) at positions corresponding to the seat plate holes, and the protective net (7) is detachably connected to the seat plate (8) through fasteners (12).

3. A novel rectangular ventilator as claimed in claim 1, characterized in that: The outer end portion of the opening and closing indicator rod (6) is semicircular in shape.

4. A novel rectangular ventilator according to claim 1, characterized in that: The through groove (301) is provided in the middle of the shutter (3), thereby dividing the shutter (3) into two equal parts on the left and right.

5. The novel rectangular ventilator according to claim 1, characterized in that: An upper sealing plate (302) is fixedly provided above the through-groove (301), and a lower sealing plate (303) is fixedly provided below the through-groove (301).

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