CN210265906U - Smoke exhaust valve and smoke exhaust system - Google Patents

Abstract

The utility model discloses a smoke exhaust valve and a smoke exhaust system; the smoke exhaust valve is arranged on the wall, the top or in a pipeline of a building and comprises a valve body with a smoke passage, an on-off component which can enable the smoke passage to be smooth or blocked is arranged in the valve body, the on-off component comprises at least two parallel and spaced louver components, a synchronous linkage component is arranged between the louver components so that the louver components can be opened and closed synchronously, and the louver components can enhance the pressure bearing capacity and the sealing performance of the blocking component so that the capacity of the smoke exhaust valve for blocking airflow is enhanced; and the two shutter assemblies are synchronously opened and closed, the use is convenient, the structure is simple, the production cost is low, and the requirements of popularization and application can be met.

Description

Smoke exhaust valve and smoke exhaust system

Technical Field

The utility model relates to a fume extractor for the fire control field especially relates to a smoke damper and system of discharging fume for the fire control field, and this smoke damper can outwards get rid of the smog in a space in time. Under the condition of fire, the smoke exhaust valve can be effectively and timely opened, and can resist larger wind pressure and keep good sealing performance under the closing condition.

Background

The smoke exhaust valve is installed on the wall of a building or in a ventilation pipeline; the opening or closing of the smoke exhaust valve is determined according to specific disasters or smoke conditions.

The existing smoke exhaust valve is mostly in a shutter form, and the smoke exhaust valve is opened or closed through the rotation of the shutter; however, the louver structure has a gap or poor sealing property in a closed state due to structural limitations such as a linkage structure, and the like, and a smoke leakage phenomenon occurs.

A smoke damper for fire control passageway pipe that publication number is CN208042250U, including valve body and oil smoke filter screen, distribute a plurality of blades on air intake and the air outlet, be equipped with electronic pivot on the blade, one side of valve body is equipped with manual spanner and controller, and the oil smoke filter screen is established at the inlet end of valve body import, sets up the oil smoke filter screen at the import of smoke damper to purify the oil smoke of discharging, this smoke damper is relatively complicated on the structure, and the cost is higher.

The traditional smoke exhaust valve is also in a single-layer louver type, the wind pressure resistance effect is poor, and the requirements of certain special places cannot be met. In view of the above, there is a need for a simple smoke exhaust valve; so as to meet the requirements of special places such as ultra-long tunnels.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a smoke exhaust valve with good blocking performance in a closed state, which has lower production cost and is convenient for popularization and application; further provides a smoke exhaust system with the smoke exhaust valve.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the smoke exhaust valve is installed in the wall, the top or a pipeline of a building and comprises a valve body with a smoke passage, an on-off component which can enable the smoke passage to be smooth or blocked is arranged in the valve body, the on-off component comprises at least two parallel louver components at intervals, a synchronous linkage component is arranged between the at least two louver components to enable the two louver components to be opened and closed synchronously, and the pressure bearing capacity and the sealing performance of the blocking component are enhanced by the at least two louver components.

The utility model discloses a further optimization scheme does: the first shutter assembly is used for bearing the pressure difference between the inner side and the outer side of the smoke exhaust valve; the second passage of shutter assembly seals the weak airflow blocked by the first passage of shutter assembly.

The utility model discloses a further optimization scheme does: each louver component comprises a first connecting rod connected with the rotating shaft of the louver blade and a second connecting rod connected with all the first connecting rods, and the synchronous linkage component comprises a synchronous linkage rod connected with two second connecting rods.

The utility model discloses a further optimization scheme does: the valve body is provided with an actuator for opening and closing the two shutter assemblies, and a driving shaft of the actuator is connected with one of the connecting rods or the synchronous linkage rod.

The utility model discloses a further optimization scheme does: the louver blades and the rotating shaft of the first louver assembly are subjected to heat treatment to enhance the supporting strength.

The utility model discloses a further optimization scheme does: and sealing components for improving the sealing performance are added on the louver blades of the second louver assembly.

The utility model discloses a further optimization scheme does: the louver blades of the two louver assemblies are arranged in a staggered mode to improve the sealing performance.

The utility model discloses a further optimization scheme does: the valve body is of a rectangular frame structure, and the two shutter assemblies are arranged in a smoke channel of the rectangular frame structure.

The utility model discloses a further optimization scheme does: the rotation angle of the louver blades of the louver assembly is 90 degrees.

The utility model discloses another theme does: the smoke exhaust system comprises smoke exhaust holes or pipelines arranged on the wall of a building, and at least one smoke exhaust valve is arranged in the smoke exhaust holes or the pipelines.

Compared with the prior art, the utility model has the advantages that twice tripe subassembly is used for bearing the pressure differential of discharge gate inside and outside together, and another way tripe subassembly blocks the weak current air current after through first tripe subassembly with sealed to the bearing capacity and the sealing performance of subassembly are blocked in the reinforcing, make the discharge gate block the ability reinforcing of air current. And the two shutter assemblies are synchronously opened and closed, the use is convenient, the structure is simple, the production cost is low, and the requirements of popularization and application can be met.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a perspective view of a preferred embodiment of the present invention in an open position;

fig. 2 is a first plan view of an open state of a preferred embodiment of the present invention;

FIG. 3 is a second plan view of the open position of a preferred embodiment of the present invention;

FIG. 4 is a cross-sectional view of an open position of a preferred embodiment of the present invention;

fig. 5 is a fourth plan view of an open position of a preferred embodiment of the present invention;

fig. 6 is a plan view five of an open state of a preferred embodiment of the present invention;

figure 7 is a perspective view of a preferred embodiment of the present invention in a closed position;

fig. 8 is a plan view one of the closed state of a preferred embodiment of the present invention;

fig. 9 is a plan view ii of a closed state of a preferred embodiment of the present invention;

fig. 10 is a cross-sectional view of a closed state of a preferred embodiment of the present invention;

fig. 11 is a fourth plan view of the closed position of a preferred embodiment of the present invention;

fig. 12 is a plan view five of a closed state of a preferred embodiment of the present invention;

FIG. 13 is a perspective view of a preferred embodiment of the louvres of the present invention;

FIG. 14 is a schematic illustration of the closing of the on-off assembly of a preferred embodiment of the present invention;

FIG. 15 is a schematic view of a preferred embodiment of the present invention with the on/off assembly half open;

fig. 16 is a schematic view of a preferred embodiment of the present invention with the on/off assembly fully open.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "left", "right", "inside", "outside", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is conventionally placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "provided", "connected", "mounted", and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4 and 7-10, this embodiment provides a smoke exhaust valve, which is used in a smoke exhaust system in the field of fire protection, and can be installed in a smoke exhaust hole or a smoke exhaust pipe on a wall of a building as required, and includes a valve body 001 with a smoke channel 002, in this embodiment, the valve body 001 is in a rectangular frame structure, and includes a top wall 001A, a bottom wall 001B and two side walls 001c, the middle of the valve body is communicated with the smoke channel 002, an on-off component 003 capable of making the smoke channel 002 smooth or blocked is arranged in the valve body 001, the on-off component 003 includes a first louver component 1A and a second louver component 1B which are parallel to each other and spaced, and a synchronous linkage component 004 is arranged between the two louver components 1 so that the two louver components 1 can be opened and closed synchronously. When the synchronous starting is carried out, the smoke discharge function can be realized; when the synchronous closing, the space sealing can be realized, the gas convection is isolated, the oxygen supplement or the high-temperature smoke diffusion is avoided, and the fire spreading is prevented.

As shown in fig. 4, 10 and 13, specifically, two louver assemblies 1 are arranged side by side in front and back, each louver assembly 1 is composed of a plurality of louvers 01 with rotating shafts 11 uniformly distributed side by side, two ends of the rotating shafts 11 of the louvers 01 are hinged between the top wall 001a and the bottom wall 001b of the valve body 001, and preferably, two ends of the rotating shafts 11 are exposed out of the outer surfaces of the top wall 001a and the bottom wall 001b of the valve body 001. The louver 01 is rotatable about the rotary shaft 11 to change an opening angle.

As shown in fig. 6, 12, 14-16, each louver assembly 1 includes a first connecting rod 2 coupled to the rotating shaft 11 of each louver 01, and a second connecting rod 3 coupled to all the first connecting rods 2. Second connecting rod 3 and first connecting rod 2 are articulated between, and first connecting rod 2 and 01 pivot 11 fixed connection of shutter plate, when moving second connecting rod 3 about, first connecting rod 2 is driven and is rotated. When the second connecting rod 3 and the first connecting rod 2 are approximately in a straight line, the louver assemblies 1 are closed, the end parts of the adjacent louvers 01 of each louver assembly 1 are overlapped, the end walls of the louvers 01 at two sides are contacted with the inner wall of the valve body and sealed, and therefore the smoke channel 002 is sealed. When the second connecting rod 3 and the first connecting rod 2 are approximately 90 degrees, the louver assembly 1 is closed and opened, the rotation angle of each louver blade 01 is 90 degrees, the louver blades 01 are perpendicular to the smoke channel 002, and a flow channel for discharging smoke is formed between the louver blades 01.

The synchronous linkage component 004 of the first shutter assembly 1A and the second shutter assembly 1B is a synchronous linkage rod 4 for connecting two second connecting rods 3. Preferably, each louver assembly 1 in the present embodiment comprises three louvers 01; one end of a synchronous linkage rod 4 is fixed at the hinged position of a second connecting rod 3 of a louver blade 01 at one end of the first louver component 1A and the first connecting rod 2; the other end is fixed at the hinge joint of the second connecting rod 3 and the first connecting rod 2 of the middle louver blade 01 of the second louver component 1B.

As shown in fig. 5 and 11, an actuator 5 for opening and closing two louver assemblies 1 is disposed on a valve body 001, in this embodiment, the actuator 5 is disposed above a top wall 001A of the valve body, and has a switch 51 connected to a rotating shaft 11 of a louver 01 at an end of a first louver assembly 1A, when the switch 51 of the actuator 5 rotates, the louver 01 connected by the actuator 5 rotates, a first connecting rod 2 rotates therewith, and a second connecting rod 3 is pushed, so as to drive all first connecting rods 2 of the first louver assembly 1A, and synchronously drive the second connecting rod 3 and the first connecting rod 2 of the second louver assembly 1B through a synchronous linkage rod 4, thereby opening and closing the smoke exhaust valve. It should be understood that, because the rotating shafts 11, the connecting rods and the synchronous linkage rods 4 of the two louver assemblies 1 are connected into a whole, the actuator 5 can be connected with any rotating shaft 11 or any connecting rod or the synchronous linkage rod 4, and the synchronous opening and closing function of the smoke exhaust valve can be realized.

Due to the design of the two shutter assemblies 1, when the smoke exhaust valve is closed, the first shutter assembly 1A is used for bearing the pressure difference between the inner side and the outer side of the smoke exhaust valve, and the second shutter assembly 1B is used for sealing weak airflow blocked by the first shutter assembly 1A, so that the bearing capacity and the sealing performance of the blocking assembly are enhanced, and the capacity of the smoke exhaust valve for blocking the airflow is enhanced. The design structure is simple, the production cost is low, and the requirements of popularization and application can be met.

Preferably, the louver blades 01 and the rotating shaft 11 of the first louver assembly 1A are heat-treated to enhance the supporting strength. The louver blades 01 of the second louver module 1B are provided with sealing members for improving the sealing performance. It is further preferred that the louvers 01 of the two louver assemblies 1 are arranged in a staggered manner to improve the sealing performance.

It is right above the utility model provides a smoke damper and system of discharging fume introduce in detail, and it is right to have used specific individual example herein the utility model discloses a principle and embodiment have explained, and the description of above embodiment is only used for helping to understand the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. The smoke exhaust valve is arranged on the wall, the top or in a pipeline of a building and is characterized by comprising a valve body with a smoke passage, wherein a switching-on component which can lead the smoke passage to be smooth or blocked is arranged in the valve body, the switching-on component comprises at least two parallel louver components at intervals, a synchronous linkage component is arranged between the at least two louver components to lead the two louver components to be capable of synchronously opening and closing, and the at least two louver components are used for enhancing the pressure bearing capacity and the sealing performance of the blocking component.

2. The smoke damper according to claim 1, wherein the first louver assembly is adapted to withstand a pressure differential between the inside and outside of the smoke damper; the second passage of shutter assembly seals the weak airflow blocked by the first passage of shutter assembly.

3. The smoke exhaust valve according to claim 1, wherein each louver assembly comprises a first connecting rod connected with the rotating shaft of the louver blade and a second connecting rod connected with all the first connecting rods, and the synchronous linkage component comprises a synchronous linkage rod connected with two second connecting rods.

4. The smoke exhaust valve according to claim 1, wherein an actuator for opening and closing the two shutter assemblies is arranged on the valve body, and a driving shaft of the actuator is connected with one of the connecting rods or the synchronous linkage rod.

5. The smoke evacuation valve as claimed in claim 2, wherein the louver blades and the shaft of said first louver unit are heat treated to enhance the supporting strength.

6. The smoke exhaust valve according to claim 2, wherein sealing members for improving sealing performance are added to the louver blades of the second louver assembly.

7. An exhaust valve according to claim 1, wherein the louvers of the two louver assemblies are staggered to improve sealing performance.

8. The smoke evacuation valve of claim 1 wherein said valve body is a rectangular frame structure and said two louver assemblies are disposed within said smoke path of said rectangular frame structure.

9. The smoke exhaust valve according to claim 1, wherein the louver blades of said louver assembly are rotated at 90 degrees.

10. A smoke evacuation system comprising smoke evacuation apertures or ducts provided in the walls of a building, said apertures or ducts being provided with at least one smoke evacuation valve as claimed in any one of claims 1 to 9.

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