CN217737441U - Fire engineering fume extractor - Google Patents

Abstract

The utility model provides a fire engineering smoke exhaust apparatus, include the chimney and be located the fan of chimney, be provided with the shutoff piece that is close to indoor one end in the chimney, the utility model discloses in be close to indoor one end in the chimney and set up the shutoff piece, shutoff piece and chimney axial elasticity sliding fit, lie in indoor one end setting and shutoff piece complex vent ring on the chimney, set up the wind driving plate of connecting the shutoff piece in the indoor end of chimney, can outwards blow the wind driving plate when the fan in the chimney starts, realize the separation of shutoff piece and vent ring, the chimney intercommunication is indoor outside this moment, and when the fan stopped, the chimney was closed, has the effect that prevents indoor outside circulation of air, is fit for cold-proof use in winter.

Description

Fire engineering fume extractor

Technical Field

The utility model relates to a fire engineering technical field specifically is a fire engineering fume extractor.

Background

In the fire engineering, the smoke exhaust system is an important component, and is a junction for indoor and outdoor air circulation, and mainly plays a role in discharging indoor smoke outwards, a ventilating duct which is arranged in the smoke exhaust system and communicated with the indoor is a smoke exhaust channel, and the smoke exhaust channel is unobstructed and normally open, so that when the temperature is low in winter, outdoor cold air and cold air easily enter the indoor through the smoke exhaust channel, and the indoor temperature is influenced, namely, some existing smoke exhaust pipes do not have opening and closing functions; some smoke exhaust pipes with opening and closing functions are insensitive to opening and closing control and are easy to have the phenomenon of insufficient smoke exhaust attraction.

Therefore, the utility model provides a fire engineering fume extractor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fire-fighting engineering smoke exhaust device to solve the problem that proposes in the above-mentioned background art, the utility model discloses axial elastic connection shutoff piece in the chimney, the shutoff piece is close to the indoor one end of ventilation pipe, sets up wind at the outdoor one end of ventilation pipe and drives the board, and wind drives the board and passes through the connecting rod and the shutoff piece is connected, and when control fan started, the air current that the fan produced can outwards blow wind and drive the board, and then realizes opening of ventilation pipe, otherwise when control fan stopped, the ventilation pipe closure blocked indoorly.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a fire engineering smoke exhaust apparatus, includes chimney and the fan that is located the chimney, be provided with the shutoff piece that is close to indoor one end in the chimney, the one end that is located indoor on the chimney is provided with the ventilation ring that uses with the shutoff piece cooperation, one side of shutoff piece is connected with the wind that is located the indoor end of chimney through the connecting rod and drives the board, shutoff piece and chimney axial elastic connection, when the fan shut down, shutoff piece shutoff ventilation ring.

Furthermore, the plugging block is discoid, and its one end towards the ring that ventilates is provided with the external conical surface, the ring that ventilates sets up with the axle center with the chimney and its inner hole is seted up the interior conical surface that matches with the external conical surface.

Furthermore, the periphery wall fixedly connected with parallel distribution's of shutoff piece otic placode, the one end and the otic placode fixed connection of connecting rod, the internal perisporium fixedly connected with cover of chimney is established at the outside stand pipe of connecting rod, this stand pipe and connecting rod axial sliding connection.

Furthermore, a return spring positioned between the ear plate and the guide tube is sleeved on the connecting rod.

Furthermore, the inner peripheral wall of the chimney is fixedly connected with an air supply pipe, one end of the air supply pipe extends to the outdoor side of the chimney, and the other end of the air supply pipe extends to the air inlet side of the fan.

Furthermore, the outer wall of the blocking block is fixedly connected with an air-blocking plate, and the air-blocking plate is opposite to the other end of the air supply pipe.

The utility model has the advantages that: the utility model relates to a smoke exhaust device for fire engineering, which comprises a smoke exhaust cylinder; a directional pipe; air supplying pipe; a fan; a plugging block; a connecting rod; an ear plate; a wind-driven plate; an airlock; an outer conical surface; a ventilation ring; an inner conical surface; a return spring.

1. Set up the shutoff piece near indoor one end in the draft tube, shutoff piece and draft tube axial elasticity sliding fit, it sets up and shutoff piece complex ring of ventilating to lie in indoor one end on the draft tube, set up the wind driver plate of connecting the shutoff piece in the draft tube outdoor end, can outwards blow the wind driver plate when fan in the draft tube starts, realize the separation of shutoff piece and draft ring, the draft tube intercommunication is indoor outside this moment, when the fan stops, the draft tube is closed, has the effect of preventing indoor outside circulation of air, be fit for cold-proof use in winter.

2. The inner wall of the ventilating duct is provided with the air supplementing pipe, one end of the air supplementing pipe is located outdoors, the other end of the air supplementing pipe is located on the air inlet side of the fan, after the fan is started, outside air can easily enter the air inlet side of the fan, and then the air driving plate can be controlled to be opened, and the air control quick opening function is achieved.

3. The blocking block is provided with the air blocking plate opposite to the air supplementing pipe, and when the blocking block is far away from the ventilation ring and the air supplementing pipe is blocked by the air blocking plate, the suction force of the fan to the indoor is increased, and the effect of rapid smoke discharging is achieved.

Drawings

FIG. 1 is a schematic view of the structure of the smoke exhaust pipe, the plugging block and the fan of the smoke exhaust device of the fire-fighting engineering;

FIG. 2 is a detailed schematic view of the combination of the smoke exhaust pipe, the ventilation ring and the plugging block in the smoke exhaust device of the fire-fighting engineering;

in the figure: 1. a smoke exhaust tube; 11. a guide tube; 12. a gas supplementing pipe; 2. a fan; 3. a plugging block; 31. a connecting rod; 32. an ear plate; 33. a wind-driven plate; 34. an airlock; 35. an outer conical surface; 4. a ventilation ring; 41. an inner conical surface; 5. a return spring.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a smoke exhaust device for fire engineering comprises a smoke exhaust tube 1 and a fan 2 arranged in the smoke exhaust tube 1, wherein a blocking block 3 close to one indoor end is arranged in the smoke exhaust tube 1, a ventilation ring 4 matched with the blocking block 3 is arranged at one indoor end of the smoke exhaust tube 1, one side of the blocking block 3 is connected with a wind driving plate 33 arranged at the outdoor end of the smoke exhaust tube 1 through a connecting rod 31, the wind driving plate 33 is positioned right ahead of the airflow of the fan 2, the wind driving plate 33 can be pushed by the air blown by the fan 2 during working to move outwards, the wind driving plate 33 is of a disc-shaped structure and can increase the contact area with the airflow, the blocking block 3 is elastically connected with the smoke exhaust tube 1 in the axial direction, specifically, lug plates 32 distributed in parallel are fixedly connected to the peripheral wall of the blocking block 3, one end of the connecting rod 31 is fixedly connected with the lug plates 32, the guide pipe 11 outside the connecting rod 31 is established to the internal perisporium fixedly connected with cover of chimney 1, this guide pipe 11 and connecting rod 31 axial sliding connection, wind drives board 33 and drives blocking piece 3 to outdoor direction motion through connecting rod 31 during the outward movement, wherein the cover is equipped with reset spring 5 that is located between otic placode 32 and the guide pipe 11 on the connecting rod 31, when fan 2 shut down, blocking piece 3 blocks ventilation ring 4, it is discoid specifically to block piece 3, and its one end towards ventilation ring 4 is provided with the external cone face 35, ventilation ring 4 and chimney 1 set up with the axle center and its inner bore offer with the internal cone face 41 that external cone face 35 matches, external cone face 35 on its above-mentioned can contact with the internal cone face 41 on the ventilation ring 4 under the effect of reset spring 5 when blocking piece 3, this moment whole chimney 1 internal shutoff, realize indoor isolation.

In this embodiment, the internal perisporium fixedly connected with air supplement pipe 12 of chimney 1, the one end of this air supplement pipe 12 extends to the outdoor side of chimney 1 and the other end extends to the air inlet side of fan 2, and outside air can get into the air inlet side of fan 2 through air supplement pipe 12 when fan 2 starts, and then can control the outside motion of wind driving plate 33 fast, has the effect that quick control chimney 1 opened.

In this embodiment, the outer wall of the blocking block 3 is fixedly connected with an air-blocking plate 34, the other end of the air-blocking plate 34 is opposite to the other end of the air-supplementing pipe 12, the blocking block 3 moves towards the outdoor direction, when the air-blocking plate 34 blocks the air-supplementing pipe 12, the air flow flowing in the air-supplementing pipe 12 is blocked, at this moment, the suction force of the fan 2 to the indoor can be improved, and the emission of indoor smoke is accelerated.

When using this fume extractor, run through chimney 1 on the wall body, and communicate indoor outdoor, wherein the ventilation ring 4 is located indoor one end, with fan 2 and outside control system electric connection, when there is the flue gas indoor, control fan 2 starts, produce the negative pressure in the chimney 1, outdoor air can get into in the chimney 1 along the air make-up pipe 12 this moment, and then can increase the blowing power of fan 2, fan 2 blows the outside motion of wind driving plate 33 this moment, reset spring 5 compresses, wind driving plate 33 drives blocking piece 3 through connecting rod 31 and leaves ventilation ring 4, chimney 1 opens, indoor flue gas is taken out.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a fire engineering smoke extractor, includes chimney (1) and fan (2) that are located chimney (1), its characterized in that, be provided with in chimney (1) and be close to blocking piece (3) of indoor one end, the one end that is located indoor on chimney (1) is provided with and blocks up ventilation ring (4) that piece (3) cooperation was used, one side of blocking piece (3) is connected with wind that is located chimney (1) outdoor end through connecting rod (31) and drives board (33), blocking piece (3) and chimney (1) axial elastic connection, when fan (2) shut down, blocking piece (3) shutoff ventilation ring (4).

2. A fire engineering smoke evacuation device as defined in claim 1 wherein: the blocking block (3) is disc-shaped, one end of the blocking block facing the ventilating ring (4) is provided with an outer conical surface (35), and the ventilating ring (4) and the smoke exhaust pipe (1) are coaxially arranged and an inner hole of the ventilating ring and the smoke exhaust pipe is provided with an inner conical surface (41) matched with the outer conical surface (35).

3. A fire engineering smoke evacuation device as claimed in claim 2 wherein: the outer peripheral wall fixedly connected with parallel distribution's of shutoff piece (3 otic placode (32), the one end and otic placode (32) fixed connection of connecting rod (31), the internal perisporium fixedly connected with cover of chimney (1) is established at outside stand pipe (11) of connecting rod (31), this stand pipe (11) and connecting rod (31) axial sliding connection.

4. A fire engineering smoke evacuation device as defined in claim 3 wherein: the connecting rod (31) is sleeved with a return spring (5) positioned between the ear plate (32) and the guide tube (11).

5. A fire engineering smoke evacuation device as defined in claim 3 wherein: the inner peripheral wall of the exhaust pipe (1) is fixedly connected with an air supplementing pipe (12), one end of the air supplementing pipe (12) extends to the outdoor side of the exhaust pipe (1) and the other end of the air supplementing pipe extends to the air inlet side of the fan (2).

6. A fire engineering fume extractor as claimed in claim 5, wherein: the outer wall of the blocking block (3) is fixedly connected with an air closing plate (34), and the other end of the air closing plate (34) is opposite to the other end of the air supplementing pipe (12).

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