CN211398594U

CN211398594U - Smoke-discharging fire-proof valve

Info

Publication number: CN211398594U
Application number: CN201922258766.0U
Authority: CN
Inventors: 曾丽琴
Original assignee: Fujian Kaiwei Fire Ventilation Equipment Co ltd
Current assignee: Fujian Kaiwei Fire Ventilation Equipment Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-09-01
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses a fire prevention valve discharges fume, its structure includes the shell, the inner box, control mechanism, a pedestal, the shell inlays admittedly around the fire prevention valve discharges fume, the shell is inboard to the inner box inlays to be located, control mechanism passes through welded connection in the shell top, the inner box bottom is located to the base, the inner box is equipped with the fire prevention chamber of discharging fume, a supporting plate, the drive block, a rotating shaft, a hinge, the blade, the drive block includes the drive shaft, first driving band, first drive wheel, the second driving band, the second drive wheel, blade one side is equipped with fire prevention heat-insulating rubber layer, the dust screen is installed to inner box one side, the dust screen is equipped with the through-hole, the baffle, the fire prevention heat-insulating rubber layer of installation on the blade, make the temperature at conflagration scene can not melt the blade, avoid resulting in the blade deformation.

Description

Smoke-discharging fire-proof valve

Technical Field

The utility model belongs to the technical field of the fire prevention valve and specifically relates to a fire prevention valve discharges fume.

Background

The smoke-discharging fire-proof valve is installed on the pipelines of the air supply and return systems of the ventilation and air conditioning systems or the mechanical smoke-discharging systems, is opened in case of fire, is closed when the temperature of gas in the pipeline reaches a certain temperature, can meet the requirements of smoke leakage amount and fire resistance integrity in a certain time, and plays a role in isolating smoke and fire resistance.

Because the temperature in the fire scene is high, the metal blade which is in a plane shape on the valve is deformed, a larger gap is formed when the metal blade is closed, the flame and the high temperature can not be effectively prevented from spreading, and the phenomenon that a blade shaft is blocked due to the fact that a large amount of dust impurities are contained in smoke gas occurs.

SUMMERY OF THE UTILITY MODEL

To because conflagration site temperature is high, can make to become planar metal blade on the valve and produce and warp, great clearance appears when leading to the closure for can not effectual prevention flame and high temperature stretch, and contain a large amount of dust impurity in the flue gas and can lead to the not enough that dead phenomenon of blade axle card takes place, the utility model provides a fire damper discharges fume solves above-mentioned technical problem.

The utility model discloses a realize through following technical scheme: the utility model provides a fire damper discharges fume, its structure includes shell, inner box, control mechanism, base, the shell inlays admittedly around fire damper discharges fume, the inner box inlays and locates the shell inboard, control mechanism passes through welded connection in the shell top, the inner box bottom is located to the base.

Furthermore, the inner box is provided with a smoke exhaust fireproof cavity, a support plate, a driving block, a rotating shaft, a hinge and blades, wherein the smoke exhaust fireproof cavity is embedded in the inner box wall, the support plate is connected to two sides of the smoke exhaust fireproof cavity in a welded mode, the driving block is installed around the support plate, the rotating shaft is arranged in the smoke exhaust fireproof cavity, the hinge is connected to the periphery of the rotating shaft in a gap mode, and the blades are connected to one side of the hinge in a welded mode.

Furthermore, the driving block comprises a driving shaft, a first driving belt, a first driving wheel, a second driving belt and a second driving wheel, wherein the driving shaft is arranged inside the driving block, the first driving belt is arranged around the driving shaft in a matched mode, the first driving wheel is embedded at the tail end of the first driving belt, the second driving belt is arranged around the driving shaft in a matched mode, and the second driving wheel is embedded at the tail end of the second driving belt.

Furthermore, one side of the blade is provided with a fireproof heat-insulation rubber layer.

Furthermore, the dustproof net is installed on one side of the inner box and is provided with a through hole and a baffle, the through hole is embedded in the inner box, and the baffle is arranged on two sides of the through hole.

Advantageous effects

The utility model relates to a fire damper discharges fume compares with prior art and has following advantage:

1. the fireproof heat-insulating rubber layer arranged on the blades of the utility model prevents the blades from being melted at the temperature of the fire scene, avoids the deformation of the blades, and avoids the occurrence of gaps when the blades are closed, thereby effectively preventing the spread of flame and high temperature;

2. the driving shaft in the driving block of the utility model drives the first driving wheel and the second driving wheel to rotate through the first driving belt and the second driving belt respectively, so that the effect of controlling the blades by the control mechanism is achieved;

3. the utility model discloses at inner box internally mounted have the dust screen, through-hole and baffle in the dust screen can keep apart the on-the-spot dust impurity of conflagration outside the shell, avoid getting into the inner box to dust impurity adsorbs on the blade, avoids influencing closing of blade.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is the structure schematic diagram of the smoke exhaust fire damper of the utility model.

Fig. 2 is a schematic diagram of the internal amplification structure of the inner box of the present invention.

Fig. 3 is a schematic view of the top view enlarged structure of the driving block of the present invention.

Fig. 4 is an enlarged schematic structural view of the blade of the present invention.

Fig. 5 is a schematic view of the side-view enlarged structure of the inner box of the present invention.

In the figure: the device comprises a shell 1, an inner box 2, a control mechanism 3, a base 4, a smoke and fire prevention cavity a, a supporting plate a1, a driving block a2, a rotating shaft a3, a hinge a4, a blade a5, a driving shaft x, a first driving belt x1, a first driving wheel x2, a second driving belt x3, a second driving wheel x4, a fire and heat insulation rubber layer m, a dust screen b, a through hole b1 and a baffle b 2.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the following description is combined with the detailed description and the accompanying drawings to further explain the preferred embodiments of the present invention.

Examples

Referring to fig. 1-5, the present invention provides a smoke exhaust fire damper, which comprises a housing 1, an inner box 2, a control mechanism 3, and a base 4, wherein the housing 1 is embedded around the smoke exhaust fire damper, the inner box 2 is embedded inside the housing 1, the control mechanism 3 is connected to the top of the housing 1 by welding, and the base 4 is disposed at the bottom of the inner box 2.

Inner box 2 is equipped with smoke exhaust fire prevention chamber a, backup pad a1, drive block a2, pivot a3, hinge a4, blade a5, smoke exhaust fire prevention chamber a inlays and locates inner box 2 inner wall, backup pad a1 passes through welded connection in smoke exhaust fire prevention chamber a both sides, drive block a2 installs around backup pad a1, pivot a3 arranges smoke exhaust fire prevention intracavity a inside in, hinge a4 passes through gap connection around pivot a3, blade a5 passes through welded connection in hinge a4 one side.

The driving block a2 comprises a driving shaft x, a first driving belt x1, a first driving wheel x2, a second driving belt x3 and a second driving wheel x4, wherein the driving shaft x is installed inside the driving block a2, the first driving belt x1 is installed around the driving shaft x in a matching mode, the first driving wheel x2 is embedded at the tail end of the first driving belt x1, the second driving belt x3 is installed around the driving shaft x in a matching mode, and the second driving wheel x4 is embedded at the tail end of the second driving belt x 3.

One side of the blade a5 is provided with a fireproof heat-insulation rubber layer m.

Interior case 2 one side is installed dust screen b, dust screen b is equipped with through-hole b1, baffle b2, through-hole b1 inlays and locates inside, through-hole b1 both sides are arranged in to baffle b 2.

The principle of the utility model is as follows: the driving shaft x is controlled by the control mechanism 3 to rotate inside the driving block a2, the first driving belt x1 and the second driving belt x3 are respectively used for driving the first driving wheel x2 and the second driving wheel x4 to rotate, so that the blade a5 is opened and closed at the hinge a4, the opening and closing of the valve are controlled, the fireproof heat-insulating rubber layer m is installed on the blade a5, the blade a5 cannot be melted at the high temperature of a fire scene, the blade a5 is prevented from being deformed, a gap is prevented from being formed when the blade is closed, the spreading of flame and high temperature can be effectively prevented, the dustproof net b is arranged inside the inner box 2, dust and impurities at the fire scene are isolated outside the outer shell 1 through the through hole b1 and the baffle b2 in the dustproof net b, the dust and impurities entering the inner box 2 are prevented from being adsorbed on the blade a5, and the.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims

1. The utility model provides a fire damper discharges fume which characterized in that: the structure of the smoke-discharging fire-resisting damper comprises an outer shell (1), an inner box (2), a control mechanism (3) and a base (4), wherein the outer shell (1) is fixedly embedded around the smoke-discharging fire-resisting damper, the inner box (2) is embedded in the inner side of the outer shell (1), the control mechanism (3) is connected to the top of the outer shell (1) through welding, and the base (4) is arranged at the bottom of the inner box (2);

inner box (2) are equipped with fire-proof chamber (a) of discharging fume (a), backup pad (a1), drive block (a2), pivot (a3), hinge (a4), blade (a5), the fire-proof chamber (a) of discharging fume inlays and locates inner box (2) inner wall, backup pad (a1) are through welded connection in fire-proof chamber (a) both sides of discharging fume (a), drive block (a2) are installed around backup pad (a1), pivot (a3) are arranged in and are discharged fume inside fire-proof chamber (a), hinge (a4) are through gap connection around pivot (a3), blade (a5) are through welded connection in hinge (a4) one side.

2. A smoke evacuation fire damper as claimed in claim 1, wherein: the driving block (a2) comprises a driving shaft (x), a first driving belt (x1), a first driving wheel (x2), a second driving belt (x3) and a second driving wheel (x4), wherein the driving shaft (x) is installed inside the driving block (a2), the first driving belt (x1) is installed around the driving shaft (x) in a matching mode, the first driving wheel (x2) is embedded at the tail end of the first driving belt (x1), the second driving belt (x3) is installed around the driving shaft (x) in a matching mode, and the second driving wheel (x4) is embedded at the tail end of the second driving belt (x 3).

3. A smoke evacuation fire damper as claimed in claim 1, wherein: and one side of the blade (a5) is provided with a fireproof heat-insulating rubber layer (m).