Fire safety ventilation device

Abstract

The utility model discloses a fire safety ventilation device which comprises a ventilation pipeline, a closing assembly is fixedly installed at the tail end of the ventilation pipeline, a dust removal assembly located on one side of the closing assembly is arranged in the ventilation pipeline, and a fan located on one side of the dust removal assembly is arranged in the ventilation pipeline. The closing assembly comprises a mounting frame fixedly mounted at the tail end of the ventilation pipeline and an electric push rod fixedly mounted on the inner wall of the ventilation pipeline, a rotating shaft is rotationally connected to the side, close to the dust removal assembly, of the mounting frame, a deflection partition plate is integrally arranged at the bottom of the rotating shaft, and a gear is fixedly mounted at one end of the rotating shaft; a rack is arranged at the movable end of the electric push rod and engaged with the gear. By arranging the closing assembly, the interior of the ventilation pipeline is isolated from the exterior under the condition that use of the ventilation pipeline is not affected, and damage caused by dust accumulation in the pipeline is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting ventilation, in particular to a fire-fighting safety ventilation device. Background Art

[0002] Ventilation, also known as air exchange, is the use of mechanical or natural methods to deliver enough fresh air into the indoor space, while expelling the dirty air that does not meet the hygiene requirements of the room, so that the indoor air meets the hygiene requirements and the needs of the production process. The various facilities in the building that complete the ventilation work are collectively called ventilation equipment. Ventilation equipment is divided into exhaust fans, ventilation fans and fans, which are divided into industrial and household types, and fans are divided into high, medium, low and negative pressure.

[0003] The exhaust vents of existing fire safety ventilation devices are relatively simple and cannot be closed when not in use, which makes it easy for dust to enter, causing damage to the fire safety ventilation device and reducing the service life of the device.

[0004] To this end, we propose a fire safety ventilation device. Utility Model Content

[0005] The purpose of the utility model is to provide a fire safety ventilation device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire safety ventilation device, comprising a ventilation duct, a closing component is fixedly installed at the end of the ventilation duct, a dust removal component is arranged inside the ventilation duct on one side of the closing component, a fan is arranged inside the ventilation duct on one side of the dust removal component, the closing component comprises a mounting frame fixedly installed on the end of the ventilation duct, and an electric push rod fixedly installed on the inner wall of the ventilation duct, a rotating shaft is rotatably connected to one side of the mounting frame close to the dust removal component, a deflection partition is integrally arranged at the bottom of the rotating shaft, a gear is fixedly installed at one end of the rotating shaft, a rack is arranged at the movable end of the electric push rod, and the rack is meshed with the gear.

[0007] Optionally, a limit column located on one side of the electric push rod is fixedly installed on the inner wall of the ventilation duct, a sliding strip is fixedly installed on the movable end of the electric push rod, a limit slot is opened in the middle of the sliding strip, the limit column and the inside of the limit slot are slidably connected, and the rack is fixedly installed on one side of the sliding strip.

[0008] Optionally, the bottom of the deflection baffle coincides with the rotating shaft below, and the length of the deflection baffle is greater than the width of the middle opening of the installation frame.

[0009] Optionally, the length of the limiting column is the same as the thickness of the sliding strip, and a disc having a diameter greater than that of the limiting cylinder is integrally provided at the end of the limiting column.

[0010] Optionally, the dust removal assembly includes a fixed frame fixedly installed inside the ventilation duct, a dust removal wet curtain is arranged inside the fixed frame, a sprinkler plate is arranged on the top of the dust removal wet curtain, a water inlet pipe is fixedly installed on the top of the sprinkler plate, and a drain pipe is fixedly installed on one side of the fixed frame.

[0011] Optionally, the top of the sprinkler plate is in close contact with the top of the interior of the fixed frame, and a plurality of evenly distributed through holes are provided at the bottom of the sprinkler plate, through which the drain pipe and the ventilation duct are arranged.

[0012] Optionally, the water inlet pipe is arranged to penetrate the fixing frame and the top of the ventilation duct, and an electric-controlled valve located above the ventilation duct is fixedly installed in the middle of the water inlet pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The fire safety ventilation device is provided with a closing component. When the ventilation duct is not in use, the deflection partition is closed. When the fan is started, the electric push rod is started synchronously to push the sliding strip to move. At the same time, the limit column limits the sliding direction and distance of the sliding strip. When the sliding strip moves, it drives the rack to move, and then the gear rotates, and drives the rotating shaft to rotate, so that the deflection partition rotates, so that the inside of the ventilation duct is connected with the outside, and the inside of the ventilation duct is isolated from the outside without affecting the use of the ventilation duct, so as to prevent dust from accumulating inside the duct and causing damage.

[0015] 2. The fire safety ventilation device is provided with a dust removal component. When a fire occurs, the deflection partition is opened, and the air flows into the ventilation duct. The electric control valve opens, and the sprinkler plate sprays water to wet the dust removal wet curtain. The dust and smoke in the air are absorbed by the dust removal wet curtain, and the high-temperature air is cooled at the same time. The filtered air is discharged to the outdoors, thereby reducing dust pollution in the air, reducing the impact on people, and preventing dust from accumulating inside the pipe and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a fire safety ventilation device of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a ventilation duct of a fire safety ventilation device of the utility model;

[0018] Figure 3 The utility model is a fire safety ventilation device Figure 3 The enlarged view of point A in the middle;

[0019] Figure 4This is a schematic diagram of the structure of an electric push rod of a fire safety ventilation device of the utility model;

[0020] Figure 5 The utility model is a schematic structural diagram of a dust removal component of a fire safety ventilation device.

[0021] In the figure: 1. ventilation duct; 2. closing component; 21. mounting frame; 22. rotating shaft; 23. deflection partition; 24. gear; 25. electric push rod; 26. limit column; 27. sliding strip; 28. limit slide groove; 29. ​​rack; 3. dust removal component; 31. fixing frame; 32. dust removal wet curtain; 33. sprinkler plate; 34. water inlet pipe; 35. electric control valve; 36. through hole; 37. drain pipe; 4. fan. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5 The utility model provides a fire safety ventilation device, including a ventilation duct 1, a closing component 2 is fixedly installed at the end of the ventilation duct 1, a dust removal component 3 located on one side of the closing component 2 is arranged inside the ventilation duct 1, and a fan 4 located on one side of the dust removal component 3 is arranged inside the ventilation duct 1, the closing component 2 includes a mounting frame 21 fixedly installed at the end of the ventilation duct 1, and an electric push rod 25 fixedly installed on the inner wall of the ventilation duct 1, a rotating shaft 22 is rotatably connected to the side of the mounting frame 21 close to the dust removal component 3, a deflection partition 23 is integrally arranged at the bottom of the rotating shaft 22, a gear 24 is fixedly installed at one end of the rotating shaft 22, and a rack 29 is arranged at the movable end of the electric push rod 25, and the rack 29 is meshed with the gear 24.

[0024] A limit column 26 located on one side of the electric push rod 25 is fixedly installed on the inner wall of the ventilation duct 1, and a sliding strip 27 is fixedly installed on the movable end of the electric push rod 25. A limit slot 28 is provided in the middle of the sliding strip 27, and the limit column 26 is slidably connected with the inside of the limit slot 28, and the rack 29 is fixedly installed on one side of the sliding strip 27. By setting the closing component 2, when the ventilation duct 1 is not in use, the deflection partition 23 is closed. When the fan 4 is started, the electric push rod 25 is started synchronously to push the sliding strip 27 to move. At the same time, the limit column 26 limits the sliding direction and distance of the sliding strip 27. When the sliding strip 27 moves, it drives the rack 29 to move, thereby causing the gear 24 to rotate, and drives the rotating shaft 22 to rotate, so that the deflection partition 23 rotates, so that the inside of the ventilation duct 1 is connected with the outside, and the inside of the ventilation duct 1 is isolated from the outside without affecting the use of the ventilation duct 1, to prevent dust from accumulating inside the duct and causing damage.

[0025] The bottom of the deflection baffle 23 overlaps with the rotating shaft 22 below, and the length of the deflection baffle 23 is greater than the width of the middle opening of the installation frame 21 .

[0026] The length of the limiting column 26 is the same as the thickness of the sliding strip 27 , and a disc having a diameter larger than that of the limiting cylinder is integrally provided at the end of the limiting column 26 .

[0027] The dust removal assembly 3 includes a fixed frame 31 fixedly installed inside the ventilation duct 1, a dust removal wet curtain 32 is arranged inside the fixed frame 31, a sprinkler plate 33 is arranged on the top of the dust removal wet curtain 32, a water inlet pipe 34 is fixedly installed on the top of the sprinkler plate 33, and a drain pipe 37 is fixedly installed on one side of the fixed frame 31.

[0028] The top of the watering plate 33 is in close contact with the top of the interior of the fixing frame 31 , and a plurality of evenly distributed through holes 36 are provided at the bottom of the watering plate 33 , through which the drainage pipe 37 and the ventilation duct 1 are arranged.

[0029] The water inlet pipe 34 is penetrated by the fixed frame 31 and the top of the ventilation duct 1. The middle part of the water inlet pipe 34 is fixedly installed with an electric control valve 35 located above the ventilation duct 1. By setting the dust removal component 3, when a fire occurs, the deflection partition 23 is opened, and the air flows into the ventilation duct 1. The electric control valve 35 is opened, and the sprinkler plate 33 sprinkles water to wet the dust removal wet curtain 32. The dust and smoke in the air are absorbed by the dust removal wet curtain 32, and the high-temperature air is cooled at the same time. The filtered air is discharged to the outdoors, thereby reducing dust pollution in the air, reducing the impact on people, and preventing dust from accumulating inside the pipe and causing damage.

[0030] Working principle:

[0031] When the ventilation duct 1 is not in use, the deflection partition 23 is closed. When the fan 4 is started, the electric push rod 25 is started synchronously to push the sliding strip 27 to move. At the same time, the limit column 26 limits the sliding direction and distance of the sliding strip 27. When the sliding strip 27 moves, it drives the rack 29 to move, thereby causing the gear 24 to rotate, and drives the rotating shaft 22 to rotate, so that the deflection partition 23 rotates, so that the inside of the ventilation duct 1 is connected with the outside, and the inside of the ventilation duct 1 is isolated from the outside without affecting the use of the ventilation duct 1, so as to prevent dust from accumulating inside the duct and causing damage. When a fire occurs, the deflection partition 23 is opened, and air flows into the inside of the ventilation duct 1, the electric control valve 35 is opened, and the sprinkler plate 33 sprinkles water to wet the dust removal wet curtain 32. The dust and smoke in the air are absorbed by the dust removal wet curtain 32, and the high-temperature air is cooled at the same time. The filtered air is discharged to the outdoors, thereby reducing dust pollution in the air, reducing the impact on people, and preventing dust from accumulating inside the duct and causing damage.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire safety ventilation device, comprising a ventilation duct (1), characterized in that: A closing component (2) is fixedly mounted at the end of the ventilation duct (1); a dust removal component (3) is arranged inside the ventilation duct (1) and is located on one side of the closing component (2); a fan (4) is arranged inside the ventilation duct (1) and is located on one side of the dust removal component (3); the closing component (2) comprises a mounting frame (21) fixedly mounted on the end of the ventilation duct (1); and an electric push rod (25) fixedly mounted on the inner wall of the ventilation duct (1); a rotating shaft (22) is rotatably connected to a side of the mounting frame (21) close to the dust removal component (3); a deflection baffle (23) is integrally arranged at the bottom of the rotating shaft (22); a gear (24) is fixedly mounted on one end of the rotating shaft (22); a rack (29) is arranged at the movable end of the electric push rod (25); and the rack (29) is meshed with the gear (24).

2. A fire safety ventilation device according to claim 1, characterized in that: A limiting column (26) located at one side of the electric push rod (25) is fixedly installed on the inner wall of the ventilation duct (1); a sliding strip (27) is fixedly installed on the movable end of the electric push rod (25); a limiting sliding groove (28) is provided in the middle of the sliding strip (27); the limiting column (26) and the limiting sliding groove (28) are slidably connected through the inside; and the rack (29) is fixedly installed on one side of the sliding strip (27).

3. A fire safety ventilation device according to claim 1, characterized in that: The bottom of the deflection baffle (23) coincides with the rotating shaft (22) below, and the length of the deflection baffle (23) is greater than the width of the middle opening of the installation frame (21).

4. A fire safety ventilation device according to claim 2, characterized in that: The length of the limiting column (26) is the same as the thickness of the sliding strip (27), and the end of the limiting column (26) is integrally provided with a disc having a diameter greater than that of the limiting cylinder.

5. A fire safety ventilation device according to claim 1, characterized in that: The dust removal component (3) comprises a fixed frame (31) fixedly mounted inside the ventilation duct (1); a dust removal wet curtain (32) is arranged inside the fixed frame (31); a water sprinkling plate (33) is arranged on the top of the dust removal wet curtain (32); a water inlet pipe (34) is fixedly mounted on the top of the water sprinkling plate (33); and a drainage pipe (37) is fixedly mounted on one side of the fixed frame (31).

6. A fire safety ventilation device according to claim 5, characterized in that: The top of the water sprinkling plate (33) is in close contact with the top of the interior of the fixing frame (31), the bottom of the water sprinkling plate (33) is provided with a plurality of evenly distributed through holes (36), and the drainage pipe (37) and the ventilation duct (1) are arranged to penetrate each other.

7. A fire safety ventilation device according to claim 5, characterized in that: The water inlet pipe (34) is arranged to penetrate the fixing frame (31) and the top of the ventilation duct (1), and an electric control valve (35) located above the ventilation duct (1) is fixedly installed in the middle of the water inlet pipe (34).

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