CN201271442Y

CN201271442Y - Enclosed type fireproofing and smoke-discharging valve

Info

Publication number: CN201271442Y
Application number: CNU200820136088XU
Authority: CN
Inventors: 林明; 邵志坤
Original assignee: CHENGDU BOOTMAN TECHNOLOGY Co Ltd
Current assignee: CHENGDU BOOTMAN TECHNOLOGY Co Ltd
Priority date: 2008-09-25
Filing date: 2008-09-25
Publication date: 2009-07-15
Anticipated expiration: 2018-09-25

Abstract

The utility model discloses a closed type fireproofing and smoke exhaust valve, which comprises an outer frame, blades and an actuating mechanism, the blades are provided with a blade main shaft connected with the actuating mechanism, the blades directly connected with the main shaft are called driving blades, and the rest blades are called auxiliary blades, and the blades are linked with one another through a linkage mechanism, and sealing structures are arranged at the binding parts of the blades and the outer frame as well as between the blades. Compared with the prior art, the fireproofing and smoke exhaust valve has better airtightness with the outer frame and less air leakage when the blades are closed due to the arrangement of the sealing structures between the blades and the outer frame.

Description

Hermetic type fire prevention, exhaust smoke valve

Technical field

The utility model relates to a kind of fire-fighting system valve, relates to a kind of hermetic type fire prevention, exhaust smoke valve particularly.

Background technology

Along with developing rapidly of building trade, the extensive use in architectural engineering of building smoke control system, the problem that relates to security against fire, energy-conserving and environment-protective also more and more comes to give prominence to, at present, country is working out national standard " building smoke control system technical specification ", proposes higher requirement aspect the air-tightness of architectural engineering smoke control system.And existing fire and smoke exhaust valve mostly just is the sealing discharge flue, and air-tightness is bad, and discharge flue also exists and leaks out, and the inleakage size directly influences the control of fire.

The utility model content

The purpose of this utility model is at the problems referred to above, provides a kind of simple in structure, and air-tightness is good, hermetic type fire prevention, exhaust smoke valve that inleakage is little.

For achieving the above object, the utility model adopts following technical scheme:

A kind of hermetic type fire prevention, exhaust smoke valve, comprise housing and blade, executing agency, described blade is provided with a blade main shaft that is connected with described executing agency, claim active blade with the blade that main shaft directly links to each other, remaining blade is called auxilliary moving vane, by the linkage interlock,, and between each blade, be provided with hermetically-sealed construction between the blade at the binding site of described blade and housing.

Described housing centre position has the reinforcement to the passage internal projection, this reinforcement forms described joint portion, described hermetically-sealed construction is made of first groove that is arranged on described blade edge and/or second groove that is arranged on described reinforcement one side, in described first groove and/or second groove heat-resistant seal material is housed.

Described reinforcement cross sectional shape is in the shape of the letter V, described second groove wherein limit is stretched out and bends and form by reinforcement, and described first groove is the spoon shape crotch that is provided with at blade edge, and first groove of this first groove and second groove or another blade toward each other.

An accommodation space is left in inboard at described first groove or second groove, is used to hold the outer rim of second groove or first groove relative with it.

The spring steel plate of intermediate projections is housed on the housing of the end of described blade, and this spring steel plate is in the form of slot, and its both sides are connected in described housing by screw.

Compared with prior art, fire prevention of the present utility model, exhaust smoke valve are owing to be provided with hermetically-sealed construction between blade and housing, and air-tightness is better when blade is closed and between the housing, and inleakage is littler.

Adopt the multi-disc blade, and can be subjected to executing agency to drive switching synchronously, go for the smoke control system of various channel cross-sections.The reinforcement that is provided with can increase the intensity of housing, utilize reinforcement can establish the joint portion in addition as the joint portion between blade and the housing, thereby simplify the structure of fire and smoke exhaust valve, and hermetically-sealed construction uses groove and the heat-resistant seal material that is provided with in groove can make hermetically-sealed construction simple, reduces manufacturing cost.Hermetically-sealed construction uses the heat-resistant seal material in two groove opposite to be engaged with each other, and its sealing effectiveness is better, and the shape of first groove and second groove has been improved air-tightness owing to increased seal length.The accommodation space that is provided with in groove has formed the labyrinth and has also helped to improve air-tightness.And at the set steel spring plate of the housing of blade tip, can be when blade be closed and the end butt of blade, make can both produce good sealing between blade and the housing.

Description of drawings

Fig. 1 is the front view of the utility model fire and smoke exhaust valve.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is that the A of Fig. 1 is to partial view.

Fig. 4 is the C-C cutaway view of Fig. 1.

Fig. 5 a, 5b are the blade profile schematic diagrames.

Among the figure

1. housing 2. blades

3. blade main shaft 4. executing agencies

5. connecting rod 6. reinforcements

7. first groove, 8. second grooves

9. heat-resistant seal material 10. accommodation spaces

11. spring steel plate 12. screws

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Please read Fig. 1 and Fig. 2, hermetic type fire prevention of the present utility model, exhaust smoke valve comprise housing 1 and blade 2, and described blade 2 is two, and each blade 2 is provided with a blade main shaft 3 pivotally connected with described housing 1, between two blades 2 and the joint portion of blade 2 and housing 1 be provided with hermetically-sealed construction.

As shown in Figure 1, described housing 1 is a rectangle, and described blade 2 is bar shaped.

Be connected with executing agency 4 on the blade main shaft 3 of a blade 2 therein, and a toggle is housed between two blades, 2 blade main shafts 3,, also can adopt other sychronisation such as chain-drive mechanism certainly referring to Fig. 1 and Fig. 3.

As shown in Figure 2, has reinforcement 6 to the passage internal projection in described housing 1 centre position, this reinforcement 6 forms described joint portion, described hermetically-sealed construction is made of with second groove 8 that is arranged on described reinforcement 6 one sides first groove 7 that is arranged on described blade 2 edges, in described first groove 7 and second groove 8 heat-resistant seal material 9 is housed, this heat-resistant seal material can be such as high temperature resistant, fire proofings such as asbestos, graphite.

Described reinforcement 6 cross sectional shapes are in the shape of the letter V, described second groove 8 wherein limit is stretched out and bends and form by reinforcement 6, and described first groove 7 is the spoon shape crotch that is provided with at blade 3 edges, first groove 7 of one of them blade one end and second groove 8 of housing 1 toward each other, first groove 7 of the other end and first groove 7 of another blade are toward each other.

In Fig. 2, leave an accommodation space 10 in the inboard of second groove 8 of housing, be used to hold the outer rim of first groove 7 of relative blade 2 with it, when blade 2 and housing were closed, the outer rim of first groove 7 was inserted described accommodation space 10, formed labyrinth seal.

Referring to Fig. 5 a and Fig. 5 b, the two respectively represents a kind of structure of blade, wherein represented blade 2 its upper ends of Fig. 5 a can fasten with housing 1, and blade 2 fastenings that its lower end can be represented with Fig. 5 b, can all form labyrinth seal between blade 2 and the housing 1 and between blade and the blade this moment.

As shown in Figure 4, the spring steel plate 11 of intermediate projections is housed on the housing 1 of the end of described blade 2, this spring steel plate 11 can be the stainless steel spring sheet, and this spring steel plate 11 is in the form of slot, and its both sides are connected in the both sides of described housing 1 by screw 12.

Be that example is introduced the fire and smoke exhaust valve with two blades above, in fact, blade quantity can be selected according to channel cross-section is different, and channel cross-section is big more, and blade quantity can be many more.

Under normal circumstances described fire and smoke exhaust valve disc sheet is opening, when fire, by receiving external fire signal, drive active blade 2 and drive auxilliary moving vane by control module control driving mechanism 4 by connecting rod 5 transmissions, the sealing housing makes valve closing, behind the valve closing, first groove of blade and blade and first groove intersect engagement, blade 2 is in the right-angle side insertion blade first groove accommodation space 10 of second groove 8 with the engagement of housing 1, the hook-shaped edges of blade edge is also inserted in second groove 8, seal by reaching the heat-resistant seal material of pasting in second groove 9 in first groove, mainly be to seal between vane end faces and the housing 1 by stainless steel spring sheet 11, main plaing a part cut off burning things which may cause a fire disaster, controls inleakage to greatest extent.

The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. hermetic type fire prevention, exhaust smoke valve, comprise housing and blade, executing agency, it is characterized in that: described blade is provided with a blade main shaft that is connected with described executing agency, claim active blade with the blade that executing agency directly links to each other, remaining blade is called auxilliary moving vane, by the linkage interlock,, and between each blade, be provided with hermetically-sealed construction between the blade at the binding site of described blade and housing.

2. hermetic type fire prevention according to claim 1, exhaust smoke valve, it is characterized in that: described housing centre position has the reinforcement to the passage internal projection, this reinforcement forms described joint portion, described hermetically-sealed construction is made of first groove that is arranged on described blade edge and/or second groove that is arranged on described reinforcement one side, in described first groove and/or second groove heat-resistant seal material is housed.

3. hermetic type fire prevention according to claim 2, exhaust smoke valve, it is characterized in that: described reinforcement cross sectional shape is in the shape of the letter V, described second groove wherein limit is stretched out and bends and form by reinforcement, and described first groove is the spoon shape crotch that is provided with at blade edge, and first groove of this first groove and second groove or another blade toward each other.

4. hermetic type fire prevention according to claim 3, exhaust smoke valve, it is characterized in that: an accommodation space is left in the inboard at described first groove or second groove, is used to hold the outer rim of second groove or first groove relative with it.

5. according to each described hermetic type fire prevention, exhaust smoke valve among the claim 1-4, it is characterized in that: the spring steel plate of intermediate projections is housed on the housing of the end of described blade, and this spring steel plate is in the form of slot, and its both sides are connected in described housing by screw.