Non-standard cargo hold ventilation cap

Abstract

The application discloses a non-standard cargo cabin ventilation cap, which comprises a wind tube, a ventilation cap and a weather-tight cover, wherein the ventilation cap is provided with an upper screw rod seat, the wind tube is provided with a lower screw rod seat, a connecting rib plate is arranged between the ventilation cap and the wind tube, a plurality of support plates are arranged between the inner wall of the wind tube and the lower screw rod seat, a screw rod is rotatably arranged between the upper screw rod seat and the lower screw rod seat, a threaded hole is arranged at the central part of the weather-tight cover, the screw rod is threadedly connected with the threaded hole of the weather-tight cover, a vertical plate is arranged on the inner wall of the ventilation cap in the up-down direction, a guide horizontal plate is horizontally arranged on the weather-tight cover, a guide groove is arranged on the guide horizontal plate, and the vertical plate is slidably connected with the guide groove in the up-down direction; the horizontal section shape of the wind tube is rectangular, the horizontal section shape of the ventilation cap is rectangular, and the upper end plate of the ventilation cap is a patterned steel plate. The application can realize ventilation, meet the needs of container binding and improve the safety of the ventilation cap.

Description

Technical Field

[0001] This invention relates to the field of marine auxiliary equipment technology, specifically to a non-standard cargo hold ventilation cap. Background Technology

[0002] With the continuous advancement of shipbuilding technology, people have increasingly higher requirements for the internal environment of ships. Generally speaking, the cabins are located inside the ship and require fans to draw air from ventilation ducts set on the deck through the cabins in order to maintain air circulation and improve environmental quality.

[0003] In the prior art, a typical ventilation duct is often a fungus-shaped ventilation duct, which includes a duct, a hood, and a weatherproof cover inside the hood. The weatherproof cover is mounted on a screw and is raised and lowered by an operating handwheel located above the hood and connected to the screw. The gap between the bottom of the hood and the duct forms an air inlet. External air enters the hood upward through the bottom air inlet and then turns downward through the duct into the cabin.

[0004] The above-mentioned fungal ventilation ducts still have the following problems when used:

[0005] Firstly, due to the small distance between the fore and aft hatch coamings of refrigerated container ships, the diameter of the standard mushroom-shaped ventilation duct cylinder is relatively large, which cannot guarantee passage and maintenance. The arrangement of the ventilation ducts needs to take into account operations such as lashing containers above the cargo hold and whether it will affect the passage of personnel on the lashing platform.

[0006] Secondly, in the event of a fire in the engine room, flames or hot air currents will rapidly exit from around the existing mushroom-shaped ventilation ducts, potentially preventing workers around the ventilation ducts from leaving the dangerous fire scene in time.

[0007] Therefore, it is necessary to improve the existing fungal ventilation duct structure to address the above-mentioned problems. Summary of the Invention

[0008] To address the aforementioned problems, this invention proposes a non-standard cargo hold ventilation cap, designed to achieve ventilation while meeting the needs of container lashing operations and improving the safety of the ventilation cap's use. The specific technical solution is as follows:

[0009] A non-standard cargo hold ventilation cap includes a duct, a hood covering the upper periphery of the duct, and a weatherproof cover located inside the hood and above the duct. An upper screw seat is located at the upper center of the hood, and a lower screw seat is located at the upper center of the duct. A number of connecting ribs are provided between the hood and the duct. The inner wall of the duct is connected to the lower screw seat by a number of circumferentially arranged support plates. A screw is rotatably mounted between the upper and lower screw seats. A threaded hole is provided at the center of the weatherproof cover, and the screw and the threaded hole on the weatherproof cover are threadedly engaged. A vertical plate is provided on the inner wall of the hood in the vertical direction, and a horizontal guide plate is provided on the weatherproof cover. A guide groove is provided on the guide plate, and the vertical plate enters the guide groove and slides vertically with it. The duct and the hood have a rectangular horizontal cross-sectional shape, and the upper steel plate of the hood is a patterned steel plate.

[0010] Preferably, the upper part of the screw is provided with a square body, and the upper end of the upper screw seat is provided with a detachable cover plate for covering the square body; an insect-proof net is provided between the lower end of the hood and the outer circle of the upper part of the air duct; one end of the connecting rib is fixed to the outer circle of the air duct, and the other end of the connecting rib is fixedly connected to the vertical plate by bolts; a shoulder flange is provided on the outer circle of the screw, and the upper end face of the shoulder flange abuts against the lower end face of the upper screw seat.

[0011] Preferably, the upper screw seat is provided with a sliding bearing, and the upper outer circle of the screw is rotatably mounted on the sliding bearing; the upper screw seat is also provided with an oil cup for lubricating the sliding bearing.

[0012] As a further improvement, a non-standard cargo hold ventilation cap of the present invention is provided with an automatic fire extinguishing device inside the vent. The automatic fire extinguishing device includes a fire extinguisher and a pressure handle, a lifting handle, a safety pin, and a nozzle respectively disposed on the cylinder of the fire extinguisher. The safety pin is provided with an automatic safety pin pull-out component. The pressure handle and the lifting handle are arranged in an up-down position, and an automatic pressure handle pressing component is provided between the pressure handle and the lifting handle.

[0013] Preferably, the fire extinguisher is a dry powder fire extinguisher or a carbon dioxide fire extinguisher.

[0014] Preferably, the automatic safety pin pull-out assembly includes a safety pin pull ring disposed at one end of the safety pin shaft, a shaft shoulder disposed at the middle position of the safety pin shaft, a first low-temperature heat-melting retaining ring sleeved on the safety pin shaft and abutting against the shaft shoulder, and a first compression spring sleeved on the safety pin shaft and located between the safety pin pull ring and the first low-temperature heat-melting retaining ring.

[0015] The working principle of the above-mentioned automatic safety pin pull-out component is as follows: When a fire occurs, high-temperature flames or hot air enters the ventilation cap. When the temperature inside the ventilation cap rises to exceed the melting temperature of the first low-temperature heat-melting retaining ring, the first low-temperature heat-melting retaining ring is melted, and the safety pin is automatically pulled out from the fire extinguisher under the action of the first compression spring.

[0016] Preferably, the automatic pressing assembly includes a through hole on the pressing handle, a rigid rod passing through the through hole on the pressing handle and connected at its lower end to the handle, an end baffle on the upper end of the rigid rod, a rod shoulder on the rigid rod and located above the pressing handle, a second low-temperature hot-melt retaining ring sleeved on the rigid rod and abutting against the upper end face of the rod shoulder, and a second compression spring sleeved on the rigid rod and located between the end baffle and the second low-temperature hot-melt retaining ring.

[0017] The working principle of the above-mentioned automatic handle pressing component is as follows: When a fire occurs, high-temperature flames or hot air enters the ventilation cap. When the temperature inside the ventilation cap rises to exceed the melting temperature of the second low-temperature hot melt retaining ring, the second low-temperature hot melt retaining ring melts. Under the action of the second compression spring, the handle is pressed down, and the fire extinguisher automatically sprays out the extinguishing agent to extinguish the fire, thereby delaying the spread of the fire and allowing people in the vicinity to have time to escape the dangerous scene in time.

[0018] Preferably, the upper end of the rigid rod is threadedly connected to the end baffle, and the lower end of the rigid rod is threadedly connected to the handle.

[0019] Preferably, the melting temperature of the second low-temperature hot melt retaining ring is 5 to 10°C higher than that of the first low-temperature hot melt retaining ring.

[0020] In this invention, there are multiple automatic fire extinguishing devices, which are arranged at intervals along the four walls inside the vent.

[0021] In this invention, a positioning block is provided on the inner side wall of the wind cap, and a positioning groove is provided on the positioning block along the vertical direction. A handle is provided on the side of the fire extinguisher cylinder. The handle of the fire extinguisher is inserted and positioned on the positioning groove to realize the hanging and fixing of the fire extinguisher.

[0022] In this invention, an upwardly inclined hot airflow guide plate is provided on the inner side wall of the wind cap located above the positioning block. A U-shaped groove is provided on the hot airflow guide plate, and the upper cylinder of the fire extinguisher is positioned in the U-shaped groove of the hot airflow guide plate. A hot airflow guide hole is also provided on the inner side wall of the wind cap located above the hot airflow guide plate, and a wind and rain baffle is provided on the outer side wall of the wind cap at the outer part of the hot airflow guide hole.

[0023] The hot airflow drainage hole is equipped with a mesh to prevent insects from entering.

[0024] The beneficial effects of this invention are:

[0025] First, the non-standard cargo hold ventilation cap of the present invention adopts a rectangular shape, which can increase the size of the ventilation cap at the centralized container lashing bridge to meet the passage needs of the centralized container lashing bridge (the top of the ventilation cap becomes part of the pedestrian passage), while reducing the number of ventilation caps, thereby reducing the number of fans, air ducts and cables, reducing labor costs, and thus reducing costs.

[0026] Secondly, the non-standard cargo hold ventilation cap of the present invention has a built-in automatic fire extinguishing device, which can delay the spread of fire around the ventilation cap in the event of a fire in the engine room, allowing people in the vicinity time to escape from the dangerous scene in time, thereby improving the safety of the ventilation cap. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of a non-standard cargo hold ventilation cap according to the present invention;

[0028] Figure 2 yes Figure 1 A magnified view of a portion of the document;

[0029] Figure 3 yes Figure 2 A top view of the section involving the hot airflow guide plate;

[0030] Figure 4 This is a schematic diagram of the automatic safety pin pull-out assembly on a fire extinguisher.

[0031] Figure 5 This is a schematic diagram of the automatic pressing component on the handle of a fire extinguisher.

[0032] In the diagram: 1. Ventilation duct, 2. Ventilation cap, 3. Weatherproof cover, 4. Upper screw seat, 5. Lower screw seat, 6. Connecting stiffener, 7. Support plate, 8. Screw, 9. Vertical plate, 10. Guide plate, 11. Guide groove, 12. Square body, 13. Removable cover plate, 14. Insect screen, 15. Bolt, 16. Shoulder flange, 17. Sliding bearing, 18. Oil cup, 19. Automatic fire extinguishing device, 20. Fire extinguisher, 21. Cylinder, 22. Handle, 23. Lifting handle, 24. Safety pin, 25. Nozzle, 26. Safety pin 27. Automatic pin pull-out assembly; 28. Automatic lever press-down assembly; 29. ​​Safety pin shaft; 30. Safety pin pull ring; 31. Shaft shoulder; 32. First low-temperature hot melt retaining ring; 33. First compression spring; 34. Through hole; 35. Rigid rod body; 36. End baffle; 37. Rod body shoulder; 38. Second low-temperature hot melt retaining ring; 39. Second compression spring; 40. Positioning block; 41. Positioning groove; 42. Insert handle; 43. Hot airflow guide plate; 44. U-shaped groove; 45. Hot airflow guide hole; 46. Weather baffle. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0034] like Figures 1 to 5 The illustration shows an embodiment of a non-standard cargo hold ventilation cap according to the present invention, comprising a duct 1, a hood 2 covering the upper periphery of the duct 1, and a weatherproof cover 3 disposed inside the hood 1 and above the duct 1. An upper screw seat 4 is disposed at the upper center of the hood 2, and a lower screw seat 5 is disposed at the upper center of the duct 1. A plurality of connecting ribs 6 are disposed between the hood 2 and the duct 1. The inner wall of the duct 1 and the lower screw seat 5 are connected by a plurality of circumferentially arranged support plates 7. A rotatable joint is provided between the upper screw seat 4 and the lower screw seat 5. The screw 8 and the windproof cover 3 have a threaded hole at their center. The screw 8 and the threaded hole on the windproof cover 3 are connected by a threaded engagement. The inner wall of the wind cap 2 has a vertical plate 9 arranged in the vertical direction. The windproof cover 3 has a horizontal guide plate 10 arranged in the horizontal direction. The guide plate 10 has a guide groove 11. The vertical plate 9 enters the guide groove 11 and slides vertically and vertically with the guide groove 11. The horizontal cross-sectional shape of the wind duct 1 is rectangular, the horizontal cross-sectional shape of the wind cap 2 is rectangular, and the upper steel plate of the wind cap 2 is a patterned steel plate.

[0035] Preferably, the upper part of the screw 8 is provided with a square body 12, and the upper end of the upper screw seat 4 is provided with a detachable cover plate 13 for covering the square body 12; an insect-proof net 14 is provided between the lower end of the hood 2 and the outer circle of the upper part of the air duct 1; one end of the connecting rib 6 is fixed on the outer circle of the air duct 1, and the other end of the connecting rib 6 is fixedly connected to the vertical plate 9 by bolts 15; a shoulder flange 16 is provided on the outer circle of the screw 8, and the upper end face of the shoulder flange 16 abuts against the lower end face of the upper screw seat 4.

[0036] Preferably, the upper screw seat 4 is provided with a sliding bearing 17, and the upper outer circle of the screw 8 is rotatably mounted on the sliding bearing 17; the upper screw seat 4 is also provided with an oil cup 18 for lubricating the sliding bearing 17.

[0037] As a further improvement, a non-standard cargo hold ventilation cap in this embodiment is equipped with an automatic fire extinguishing device 19 inside the vent. The automatic fire extinguishing device 19 includes a fire extinguisher 20 and a pressure handle 22, a lifting handle 23, a safety pin 24, and a nozzle 25 respectively disposed on the cylinder 21 of the fire extinguisher 20. The safety pin 24 is provided with an automatic safety pin pull-out component 26. The pressure handle 22 and the lifting handle 23 are arranged vertically. An automatic pressure handle pressing component 27 is disposed between the pressure handle 22 and the lifting handle 23.

[0038] Preferably, the fire extinguisher 20 is a dry powder fire extinguisher or a carbon dioxide fire extinguisher.

[0039] Preferably, the automatic safety pin pull-out assembly 26 includes a safety pin pull ring 29 disposed at one end of the safety pin shaft 28, a shaft shoulder 30 disposed at the middle position of the safety pin shaft 28, a first low-temperature heat-melting retaining ring 31 sleeved on the safety pin shaft 28 and abutting against the shaft shoulder 30, and a first compression spring 32 sleeved on the safety pin shaft 28 and located between the safety pin pull ring 29 and the first low-temperature heat-melting retaining ring 31.

[0040] The working principle of the above-mentioned automatic safety pin pull-out component 26 is as follows: When a fire occurs, high-temperature flames or hot air enters the ventilation cap. When the temperature inside the ventilation cap rises to exceed the melting temperature of the first low-temperature heat-melting retaining ring 31, the first low-temperature heat-melting retaining ring 31 is melted. Under the action of the first compression spring 32, the safety pin 24 is automatically pulled out from the fire extinguisher 20.

[0041] Preferably, the automatic pressing assembly 27 includes a through hole 33 on the pressing handle 22, a rigid rod 34 passing through the through hole 33 on the pressing handle 22 and connected at its lower end to the handle 23, an end baffle 35 on the upper end of the rigid rod 34, a rod shoulder 36 on the rigid rod 34 and located above the pressing handle 22, a second low-temperature hot-melt retaining ring 37 sleeved on the rigid rod 34 and abutting against the upper end surface of the rod shoulder 36, and a second compression spring 38 sleeved on the rigid rod 34 and located between the end baffle 35 and the second low-temperature hot-melt retaining ring 37.

[0042] The working principle of the above-mentioned automatic handle pressing component 27 is as follows: When a fire occurs, high-temperature flames or hot air enter the ventilation cap. When the temperature inside the ventilation cap rises to exceed the melting temperature of the second low-temperature hot melt retaining ring 37, the second low-temperature hot melt retaining ring 37 melts. Under the action of the second compression spring 38, the handle 22 is pressed down, and the fire extinguisher 20 automatically sprays out the extinguishing agent to extinguish the fire, thereby delaying the spread of the fire and allowing people in the vicinity to have time to escape the dangerous scene in time.

[0043] Preferably, the upper end of the rigid rod 34 is threadedly connected to the end baffle 35, and the lower end of the rigid rod 34 is threadedly connected to the handle 22.

[0044] Preferably, the melting temperature of the second low-temperature hot melt retaining ring 37 is 5-10°C higher than that of the first low-temperature hot melt retaining ring 31.

[0045] In this embodiment, there are multiple automatic fire extinguishing devices 19, which are arranged at intervals along the four walls inside the wind cap 2.

[0046] In this embodiment, a positioning block 39 is provided on the inner side wall of the wind cap 2, and a positioning groove 40 is provided on the positioning block 39 along the vertical direction. A handle 41 is provided on the side of the cylinder 21 of the fire extinguisher 20. The handle 41 of the fire extinguisher 20 is inserted and positioned on the positioning groove 40 to realize the hanging and fixing of the fire extinguisher 20.

[0047] In this embodiment, an upwardly inclined hot airflow guide plate 42 is also provided on the inner side wall of the wind cap 2 located above the positioning block 39. A U-shaped groove 43 is provided on the hot airflow guide plate 42, and the upper cylinder 21 of the fire extinguisher 20 is positioned in the U-shaped groove 43 of the hot airflow guide plate 42. A hot airflow guide hole 44 is also provided on the inner side wall of the wind cap 2 located above the hot airflow guide plate 42, and a wind and rain baffle 45 is provided on the outer side wall of the wind cap 2 at the outer part of the hot airflow guide hole 44.

[0048] The hot airflow drainage hole 44 is equipped with a mesh to prevent insects from entering.

[0049] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A non-standard cargo hold ventilation cap, characterized in that, The device includes a ventilation duct and a hood covering the upper periphery of the ventilation duct. An automatic fire extinguishing device is installed on the inner side wall of the hood. The automatic fire extinguishing device includes a fire extinguisher and a pressure handle, a carrying handle, a safety pin, and a nozzle, all mounted on the fire extinguisher's cylinder. The safety pin is equipped with an automatic safety pin release assembly. The pressure handle and the carrying handle are arranged vertically, and an automatic pressure handle pressing assembly is located between them. The automatic pressure handle pressing assembly includes a through hole on the pressure handle, a rigid rod passing through the through hole and connected at its lower end to the carrying handle, an end plate on the upper end of the rigid rod, a rod shoulder on the rigid rod and positioned above the pressure handle, and an outer sleeve on the hood. The fire extinguisher includes a rigid rod body with a second low-temperature hot-melt retaining ring attached to the upper end face of the rod body shoulder, and a second compression spring fitted on the rigid rod body and located between the end plate and the second low-temperature hot-melt retaining ring; wherein, before the second low-temperature hot-melt retaining ring in the automatic pressing assembly melts, the force of the second compression spring is not applied to the fire extinguisher's handle; the automatic safety pin pull-out assembly includes a safety pin pull ring located at one end of the safety pin shaft, a shaft shoulder located at the middle of the safety pin shaft, a first low-temperature hot-melt retaining ring fitted on the safety pin shaft and attached to the shaft shoulder, and a first compression spring fitted on the safety pin shaft and located between the safety pin pull ring and the first low-temperature hot-melt retaining ring; The inner sidewall of the wind cap is provided with a hot air flow hole. The hot air flow hole is arranged near the automatic pull-out component of the safety pin and the automatic press-down component of the pressure handle, so that the hot air flow hole is close to the first low temperature hot melt retaining ring and the second low temperature hot melt retaining ring. The hot melt temperature of the second low temperature hot melt retaining ring is higher than that of the first low temperature hot melt retaining ring.

2. A non-standard cargo hold ventilation cap according to claim 1, characterized in that, It also includes a weatherproof cover disposed inside the wind cap and above the wind duct. An upper screw seat is located at the upper center of the wind cap, and a lower screw seat is located at the upper center of the wind duct. A number of connecting ribs are provided between the wind cap and the wind duct. The inner wall of the wind duct is connected to the lower screw seat by a number of circumferentially arranged support plates. A screw is rotatably disposed between the upper and lower screw seats. A threaded hole is provided at the center of the weatherproof cover. The screw and the threaded hole on the weatherproof cover are threadedly connected. A vertical plate is provided on the inner wall of the wind cap along the vertical direction. A horizontal guide plate is provided on the weatherproof cover. A guide groove is provided on the guide plate. The vertical plate enters the guide groove and slides vertically with the guide groove. The horizontal cross-sectional shape of the wind duct is rectangular, the horizontal cross-sectional shape of the wind cap is rectangular, and the upper steel plate of the wind cap is a patterned steel plate.

3. A non-standard cargo hold ventilation cap according to claim 2, characterized in that, The upper part of the screw is provided with a square body, and the upper end of the upper screw seat is provided with a detachable cover plate for covering the square body; an insect-proof net is provided between the lower end of the hood and the outer circle of the upper part of the air duct; one end of the connecting rib is fixed to the outer circle of the air duct, and the other end of the connecting rib is fixedly connected to the vertical plate by bolts; a shoulder flange is provided on the outer circle of the screw, and the upper end face of the shoulder flange abuts against the lower end face of the upper screw seat.

4. A non-standard cargo hold ventilation cap according to claim 2, characterized in that, The upper screw seat is provided with a sliding bearing, and the upper outer circle of the screw is rotatably mounted on the sliding bearing; the upper screw seat is also provided with an oil cup for lubricating the sliding bearing.

5. A non-standard cargo hold ventilation cap according to claim 1, characterized in that, The melting temperature of the second low-temperature hot melt retaining ring is 5 to 10°C higher than that of the first low-temperature hot melt retaining ring.

6. A non-standard cargo hold ventilation cap according to claim 1, characterized in that, The automatic fire extinguishing devices are multiple and are arranged at intervals along the four walls inside the vent.

7. A non-standard cargo hold ventilation cap according to claim 1, characterized in that, A positioning block is provided on the inner side wall of the vent cap, and a positioning groove is provided on the positioning block along the vertical direction. A handle is provided on the side of the fire extinguisher cylinder. The handle of the fire extinguisher is inserted and positioned on the positioning groove to realize the hanging and fixing of the fire extinguisher.

8. A non-standard cargo hold ventilation cap according to claim 7, characterized in that, An upwardly inclined hot airflow guide plate is also provided on the inner side wall of the vent cap located above the positioning block. A U-shaped groove is provided on the hot airflow guide plate, and the upper cylinder of the fire extinguisher is positioned in the U-shaped groove of the hot airflow guide plate. The automatic safety pin pull-out component, the automatic handle pressing component, and the hot airflow guide hole on the inner side wall of the vent cap are all located above the hot airflow guide plate. A wind and rain baffle is provided on the outer side wall of the vent cap at the outer part of the hot airflow guide hole.

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