Fireproof ventilating duct for ship

Abstract

The utility model discloses a fireproof ventilating duct for ships, which comprises a rear side mounting flange, a fireproof ventilating duct body and a front side mounting flange, the rear side mounting flange is mounted and connected at the rear end of the fireproof ventilating duct body, the front side mounting flange is arranged at the front end of the fireproof ventilating duct body, and the front side mounting flange is arranged at the rear end of the fireproof ventilating duct body. A positioning sleeve shell is arranged at the upper end of the fireproof ventilation pipeline body, a limiting U-shaped plate is arranged on the inner side of the positioning sleeve shell, a hydraulic telescopic cylinder is arranged at the upper end of the positioning sleeve shell, and a piston rod of the hydraulic telescopic cylinder penetrates through the positioning sleeve shell and the fireproof ventilation pipeline body and is provided with a rolling closing plate. And the hydraulic telescopic cylinder is connected with external ship hydraulic equipment. The fireproof ventilating duct for the ship has the technical effects that the internal ventilating flow channel can be automatically closed, so that heat flow is effectively isolated, and the fireproof ventilating duct is safer in use.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof ventilation ducts for ships, in particular to a fireproof ventilation duct for ships. Background Art

[0002] The internal space of a ship is small, and it is difficult to evacuate quickly in the event of a fire, which can easily cause serious fire accidents. Therefore, large ships require good fire-proof ventilation ducts.

[0003] The existing Chinese patent CN217125114U disclosed a ship fireproof ventilation duct on August 5, 2022, which belongs to the field of pipeline technology. This ship fireproof ventilation duct includes a base and a fireproof component. The base includes a first fixed plate, a second fixed plate and a ventilating pipe, and the fireproof component includes a positioning rod, a first baffle and a second baffle, the positioning rod is fixed between the second fixed plate and the first fixed plate, the first baffle and the second baffle are respectively hinged to the positioning rod, and the first baffle and the second baffle are provided with a thermal insulation coating on the outside, and the first baffle and the second baffle are sleeved on the outside of the ventilating pipe, so that the first baffle and the second baffle can be attached to the outside of the ventilating pipe.

[0004] However, the inner side of the above-mentioned pipeline cannot be effectively isolated and sealed, and the airflow of the deflagration is easily transported through the pipeline. The lack of an automatic sealing structure makes it easy for the hot air inside the pipeline to be transported through the inside of the pipeline, thus causing dangerous problems. Utility Model Content

[0005] The utility model discloses a fireproof ventilation duct for ships, aiming to solve the technical problem that the inner side of the above-mentioned duct cannot be effectively isolated and closed, the airflow of the deflagration is easily transported through the duct, and there is a lack of an automatic closing structure, so that the hot air inside the duct is easily transported through the inside of the duct, thus causing danger.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A fireproof ventilation duct for ships, comprising a rear mounting flange, a fireproof ventilation duct body and a front mounting flange, wherein the rear mounting flange is mounted and connected to the rear end position of the fireproof ventilation duct body, the front end of the fireproof ventilation duct body is provided with a front mounting flange, the upper end of the fireproof ventilation duct body is provided with a positioning sleeve, the inner side of the positioning sleeve is provided with a limiting U-shaped plate, the upper end of the positioning sleeve is provided with a hydraulic telescopic cylinder, the piston rod of the hydraulic telescopic cylinder passes through the positioning sleeve and the fireproof ventilation duct body is provided with a rolling closing plate, and the hydraulic telescopic cylinder is connected to external ship hydraulic equipment.

[0008] By providing a rear mounting flange and a front mounting flange structure, the fireproof ventilation duct body passes through the rear mounting flange and the front mounting flange at the front and rear ends, so as to facilitate the connection and use of the front and rear pipes of the ship. When encountering a fire, the hydraulic telescopic cylinder on the positioning sleeve shell is controlled by an external hydraulic controller, so that the hydraulic telescopic cylinder drives the rolling closing plate to be exposed from the limiting U-shaped plate, and then the channel inside the fireproof ventilation duct body can be closed, thereby avoiding the flow and transportation of heat flow and isolating the oxygen required for the fire, thereby playing a good isolation and protection role.

[0009] In a preferred embodiment, the fireproof ventilation duct body includes a tube body shell, a bottom positioning groove, a delivery tube cavity and an upper positioning groove. The tube body shell is provided with a delivery tube cavity inside, and the inner side of the delivery tube cavity is provided with a bottom positioning groove at the bottom of the tube body shell. The inner side of the upper end of the tube body shell is provided with an upper positioning groove, and the two ends of the tube body shell are respectively connected to the rear mounting flange and the front mounting flange.

[0010] The fireproof ventilation duct pipe body structure is provided, so it is easy to install, place and use.

[0011] In a preferred embodiment, the positioning sleeve comprises an outer mounting plate, a hollow sleeve and a telescopic rod through hole, the outer mounting plate is arranged on the peripheral side of the lower end of the telescopic rod through hole, the inner side of the telescopic rod through hole is arranged with a telescopic rod through hole, and the outer mounting plate is connected to the fireproof ventilation duct body by screws.

[0012] By providing a positioning sleeve structure, the device can be installed and used in a positioned manner.

[0013] In a preferred embodiment, the limiting U-shaped plate includes a U-shaped plate shell, an intermediate sleeve hole and a ventilation opening groove. The interior of the U-shaped plate shell is provided with an intermediate sleeve hole, the inner side of the lower end of the U-shaped plate shell is provided with a ventilation opening groove, and the U-shaped plate shell is connected to the rolling closing plate.

[0014] By setting a limited position U-shaped plate structure, it can be used in a limited position and fixed.

[0015] In a preferred solution, the rolling closing plate includes a closing gate plate, an upper connecting plate and a rolling ball. The lower end of the upper connecting plate is provided with a closing gate plate, and the inner sides of both ends of the closing gate plate are provided with rolling balls. The upper connecting plate is connected to the hydraulic telescopic cylinder, and the closing gate plate is rollingly connected to the limiting U-shaped plate through the rolling ball.

[0016] By providing a rolling sealing plate structure, rolling sealing can be achieved, thereby effectively isolating the transport of heat flow.

[0017] In a preferred solution, the rolling closing plate is sleeved in the middle of the inner side of the limiting U-shaped plate.

[0018] By setting a limited position U-shaped plate structure, the rolling closing plate can be used in a limited position and moved.

[0019] In a preferred solution, a sealing rubber pad is provided between the positioning sleeve and the fireproof ventilation duct body, and the connection between the positioning sleeve and the fireproof ventilation duct body is aligned.

[0020] By providing a fireproof ventilation duct body structure, the positioning sleeve is convenient for corresponding installation and use.

[0021] As can be seen from the above, a fireproof ventilation duct for ships includes a rear mounting flange, a fireproof ventilation duct body and a front mounting flange, wherein the rear mounting flange is mounted and connected to the rear end of the fireproof ventilation duct body, the front end of the fireproof ventilation duct body is provided with a front mounting flange, the upper end of the fireproof ventilation duct body is provided with a positioning sleeve, the inner side of the positioning sleeve is provided with a limited position U-shaped plate, the upper end of the positioning sleeve is provided with a hydraulic telescopic cylinder, the piston rod of the hydraulic telescopic cylinder passes through the positioning sleeve and the fireproof ventilation duct body is provided with a rolling closing plate, and the hydraulic telescopic cylinder is connected to an external ship hydraulic device. The fireproof ventilation duct for ships provided by the utility model has the technical effect of being able to automatically close the internal ventilation flow channel, so that the heat flow is effectively isolated, which is safer when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a three-dimensional structural schematic diagram of a fireproof ventilation duct for ships.

[0023] Figure 2 The utility model is a schematic diagram of a fireproof ventilation duct pipe body structure of a fireproof ventilation duct for ships.

[0024] Figure 3 The utility model is a schematic diagram of a positioning sleeve structure of a fireproof ventilation duct for a ship.

[0025] Figure 4 The utility model is a schematic diagram of a limit U-shaped plate structure of a fireproof ventilation duct for a ship.

[0026] Figure 5 The utility model is a schematic diagram of a rolling closing plate structure of a fireproof ventilation duct for a ship.

[0027] In the attached drawings: 1. hydraulic telescopic cylinder; 2. positioning sleeve; 21. outer mounting plate; 22. hollow sleeve; 23. telescopic rod through hole; 3. rear mounting flange; 4. fireproof ventilation duct body; 41. pipe body shell; 42. bottom positioning groove; 43. delivery pipe cavity; 44. upper positioning groove; 5. rolling closing plate; 51. closing gate; 52. upper connecting plate; 53. rolling ball; 6. front mounting flange; 7. limiting U-shaped plate; 71. U-shaped plate shell; 72. middle sleeve hole; 73. ventilation opening groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] Reference Figure 1-Figure 5 A fireproof ventilation duct for a ship comprises a rear mounting flange 3, a fireproof ventilation duct body 4 and a front mounting flange 6, wherein the rear mounting flange 3 is mounted and connected to the rear end of the fireproof ventilation duct body 4, the front end of the fireproof ventilation duct body 4 is provided with a front mounting flange 6, the upper end of the fireproof ventilation duct body 4 is provided with a positioning sleeve 2, the inner side of the positioning sleeve 2 is provided with a limited position U-shaped plate 7, the upper end of the positioning sleeve 2 is provided with a hydraulic telescopic cylinder 1, the piston rod of the hydraulic telescopic cylinder 1 passes through the positioning sleeve 2 and the fireproof ventilation duct body 4 is provided with a rolling closing plate 5, the hydraulic The hydraulic telescopic cylinder 1 is connected to the external ship hydraulic equipment. When in use, the fireproof ventilation duct body 4 is connected to the front and rear end through the rear mounting flange 3 and the front mounting flange 6, so as to facilitate the connection and use of the front and rear pipes of the ship. When encountering a fire, the hydraulic telescopic cylinder 1 on the positioning sleeve 2 is controlled by the external hydraulic controller, so that the hydraulic telescopic cylinder 1 drives the rolling closing plate 5 to be exposed from the limiting U-shaped plate 7, and then the channel inside the fireproof ventilation duct body 4 can be closed, thereby avoiding the flow and transportation of heat flow and isolating the oxygen required for the fire, thereby playing a good isolation and protection role.

[0031] Reference Figure 1 and Figure 2In a preferred embodiment, the fireproof ventilation duct body 4 includes a tube body shell 41, a bottom positioning groove 42, a delivery tube cavity 43 and an upper positioning groove 44. The tube body shell 41 is provided with a delivery tube cavity 43. The inner side of the delivery tube cavity 43 is located at the bottom of the tube body shell 41 and is provided with a bottom positioning groove 42. The inner side of the upper end of the tube body shell 41 is provided with an upper positioning groove 44. The two ends of the tube body shell 41 are respectively connected to the rear mounting flange 3 and the front mounting flange 6. The two ends of the tube body shell 41 of the fireproof ventilation duct body 4 are respectively connected to the rear mounting flange 3 and the front mounting flange 6, so that the tube body shell 41 is easy to install and fix for use. The tube body shell 41 is easy to use for ventilation due to the area of ​​the delivery tube cavity 43. The area of ​​the bottom positioning groove 42 makes it easy for the hydraulic telescopic cylinder 1 to be telescoped. The area of ​​the bottom positioning groove 42 allows the rolling closing plate 5 to be inserted and closed for use.

[0032] Reference Figure 1 and Figure 3 In a preferred embodiment, the positioning sleeve 2 includes an outer mounting plate 21, a hollow sleeve 22 and a telescopic rod through hole 23. The outer mounting plate 21 is arranged on the peripheral side of the lower end of the telescopic rod through hole 23, and the inner side of the telescopic rod through hole 23 is arranged with a telescopic rod through hole 23. The outer mounting plate 21 is connected to the fireproof ventilation duct body 4 by screws. The hollow sleeve 22 of the positioning sleeve 2 can be installed and fixedly connected to the fireproof ventilation duct body 4 by the screws on the outer mounting plate 21, so that the hollow sleeve 22 is easy to install and place. Due to the area of ​​the telescopic rod through hole 23, the piston rod of the hydraulic telescopic cylinder 1 is easy to limit and move.

[0033] Reference Figure 1 and Figure 4 In a preferred embodiment, the limiting U-shaped plate 7 includes a U-shaped plate shell 71, an intermediate sleeve hole 72 and a ventilation opening groove 73. The interior of the U-shaped plate shell 71 is provided with an intermediate sleeve hole 72, and the inner side of the lower end of the U-shaped plate shell 71 is provided with a ventilation opening groove 73. The U-shaped plate shell 71 is connected to the rolling closure plate 5. The U-shaped plate shell 71 of the limiting U-shaped plate 7 is welded and connected to the rolling closure plate 5, so that the U-shaped plate shell 71 is easy to install and place. Due to the area of ​​the ventilation opening groove 73 of the U-shaped plate shell 71, the rolling closure plate 5 is easy to use for limiting lifting and lowering. The U-shaped plate shell 71 passes through the ventilation opening groove 73 on the inner side of the lower end, so that wind can be easily transported.

[0034] Reference Figure 1 and Figure 5In a preferred embodiment, the rolling closing plate 5 includes a closing gate plate 51, an upper connecting plate 52 and a rolling ball 53. The lower end of the upper connecting plate 52 is provided with a closing gate plate 51, and the inner sides of both ends of the closing gate plate 51 are provided with rolling balls 53. The upper connecting plate 52 is connected to the hydraulic telescopic cylinder 1, and the closing gate plate 51 is rollingly sleeved with the limiting U-shaped plate 7 through the rolling balls 53. The upper connecting plate 52 of the rolling closing plate 5 is connected to the hydraulic telescopic cylinder 1 by screws, so that when the piston rod of the hydraulic telescopic cylinder 1 is extended, the hydraulic telescopic cylinder 1 drives the upper connecting plate 52 to move downward, and the upper connecting plate 52 drives the closing gate plate 51 to move downward, and the closing gate plate 51 is closed on the inner side of the fireproof ventilation duct body 4, and the closing gate plate 51 is rollingly sleeved with the limiting U-shaped plate 7 through the rolling balls 53, so that the closing gate plate 51 is closed by rolling downward movement, which effectively reduces friction and makes downward movement and closing more convenient.

[0035] Reference Figure 1 , Figure 4 and Figure 5 In a preferred embodiment, the rolling closing plate 5 is sleeved in the middle of the inner side of the limiting U-shaped plate 7, so as to facilitate the limiting movement.

[0036] Reference Figure 1 In a preferred embodiment, a sealing rubber pad is provided between the positioning sleeve 2 and the fireproof ventilation duct body 4, and the connection between the positioning sleeve 2 and the fireproof ventilation duct body 4 is aligned, so that it is tighter when fixed, and the outer sides are aligned, so that no obstruction occurs during use.

[0037] Working principle: When in use, the fireproof ventilation duct body 4 is connected to the front and rear ends through the rear mounting flange 3 and the front mounting flange 6, so as to facilitate the connection of the front and rear pipes of the ship. When a fire occurs, the hydraulic telescopic cylinder 1 on the positioning sleeve 2 is controlled by an external hydraulic controller, so that the hydraulic telescopic cylinder 1 drives the rolling closing plate 5 to be exposed from the limiting U-shaped plate 7, and then the channel inside the fireproof ventilation duct body 4 can be closed, thereby avoiding the flow and transportation of heat flow and isolating the oxygen required for the fire, thereby playing a good isolation and protection role.

[0038] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A fireproof ventilation duct for a ship, comprising a rear mounting flange (3), a fireproof ventilation duct body (4) and a front mounting flange (6), characterized in that: The rear mounting flange (3) is mounted and connected to the rear end of the fireproof ventilation duct body (4); the front end of the fireproof ventilation duct body (4) is provided with a front mounting flange (6); the upper end of the fireproof ventilation duct body (4) is provided with a positioning sleeve (2); the inner side of the positioning sleeve (2) is provided with a limiting U-shaped plate (7); the upper end of the positioning sleeve (2) is provided with a hydraulic telescopic cylinder (1); the piston rod of the hydraulic telescopic cylinder (1) passes through the positioning sleeve (2) and the fireproof ventilation duct body (4) is provided with a rolling closing plate (5); the hydraulic telescopic cylinder (1) is connected to an external ship hydraulic device.

2. A fireproof ventilation duct for a ship according to claim 1, characterized in that: The fireproof ventilation duct body (4) comprises a body shell (41), a bottom positioning groove (42), a delivery tube cavity (43) and an upper positioning groove (44); the body shell (41) is provided with a delivery tube cavity (43); the inner side of the delivery tube cavity (43) is provided with a bottom positioning groove (42) at the bottom of the body shell (41); the inner side of the upper end of the body shell (41) is provided with an upper positioning groove (44); and the two ends of the body shell (41) are respectively connected to the rear mounting flange (3) and the front mounting flange (6).

3. A fireproof ventilation duct for a ship according to claim 1, characterized in that: The positioning sleeve (2) comprises an outer mounting plate (21), a hollow sleeve (22) and a telescopic rod through hole (23); the outer mounting plate (21) is arranged around the lower end of the telescopic rod through hole (23); the inner side of the telescopic rod through hole (23) is arranged with a telescopic rod through hole (23); the outer mounting plate (21) is connected to the fireproof ventilation duct body (4) by screws.

4. A fireproof ventilation duct for a ship according to claim 1, characterized in that: The limiting U-shaped plate (7) comprises a U-shaped plate shell (71), a middle sleeve hole (72) and a ventilation opening groove (73); the U-shaped plate shell (71) is provided with a middle sleeve hole (72) inside, the lower end inner side of the U-shaped plate shell (71) is provided with a ventilation opening groove (73); and the U-shaped plate shell (71) is connected to the rolling closing plate (5).

5. A fireproof ventilation duct for a ship according to claim 1, characterized in that: The rolling closing plate (5) comprises a closing gate plate (51), an upper connecting plate (52) and a rolling ball (53); the closing gate plate (51) is arranged at the lower end of the upper connecting plate (52); rolling balls (53) are arranged on the inner sides of both ends of the closing gate plate (51); the upper connecting plate (52) is connected to the hydraulic telescopic cylinder (1); and the closing gate plate (51) is rollingly sleeved with the limiting U-shaped plate (7) via the rolling ball (53).

6. A fireproof ventilation duct for a ship according to claim 1, characterized in that: The rolling closing plate (5) is sleeved in the middle of the inner side of the limiting U-shaped plate (7).

7. A fireproof ventilation duct for a ship according to claim 1, characterized in that: A sealing rubber pad is provided between the positioning sleeve (2) and the fireproof ventilation duct body (4), and the connection between the positioning sleeve (2) and the fireproof ventilation duct body (4) is aligned.

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