CN201547861U

CN201547861U - Fire-resistant check valve

Info

Publication number: CN201547861U
Application number: CN200920201503XU
Authority: CN
Inventors: 陈校兴; 王启定
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-30
Filing date: 2009-11-30
Publication date: 2010-08-11
Anticipated expiration: 2019-11-30

Abstract

The utility model belongs to the technical field of residential smoke gas discharge devices, and particularly relates to a fire-resistant check valve which can avoid smoke and gas blowby and can be applied to residential exhaust passages. The fire-resistant check valve comprises a hollow check valve body, and a range hood interface which is fixedly connected with one side of an inlet of the check valve body; and the fire-resistant check valve is characterized in that a windshield plate is hinged with the inner wall of the fire-resistant check valve in a matching manner; the windshield plate is shielded on one side of the inlet of the check valve body; and a temperature-sensing controller is arranged on one side of the inlet of the windshield plate. The utility model combines an original guide tube, the check valve and the fire-resistant valve together, so that the fire-resistant check valve is multifunctional; meanwhile, the fire-resistant check valve has fire-resistant and anti-backflow functions; moreover, a temperature-sensing point is positioned at the inlet, the fire-resistant induction is more sensitive, and the valve can be closed at the beginning of a fire disaster; therefore, the smoke fire is thoroughly isolated, and the exhaust passage is safer and more reliable.

Description

Fire-preventing check valve

Technical field

The utility model belongs to dwelling house fume emission device technique field, is specifically related to a kind of fire-preventing check valve that is applied in energy anti-channeling cigarette gas blowby in the dwelling house exhaust duct.

Background technology

Dwelling house exhaust duct check-valves in the market is not with the automatic fire prevention function, and fire resisting damper is not with the non-return diversion function.Can the anti-channeling cigarette in order to reach, can prevent fires not only but also can water conservancy diversion, general all is by external check-valves on the basis of fire resisting damper, exercises difference in functionality by two valves and also can solve anti-channeling fireproof function technically, but certainly will cause the significantly increase on resources costs and the human cost.

The utility model content

The purpose of this utility model is at existing in prior technology the problems referred to above, provide a kind of have anti-pour in down a chimney, the anti-channeling cigarette scurries flavor, fire-proof function, and fire-preventing check valve simple in structure, easy for installation.

Described fire-preventing check valve, the check valve body that comprises hollow, reach the lampblack absorber interface that check valve body import one side is connected, it is characterized in that this fire-preventing check valve inwall coordination hinge is provided with the page or leaf that keeps out the wind, the described page or leaf that keeps out the wind blocks import one side in check valve body, and is provided with warm sense controller in above-mentioned import one side of keeping out the wind page or leaf.

Described fire-preventing check valve is characterized in that the described page or leaf that keeps out the wind is articulated in the lampblack absorber interface by the wind page or leaf axle that is arranged on the lampblack absorber interface, installs on the above-mentioned wind page or leaf axle and is provided with holder, and described temperature sense controller cooperation is installed on the holder.

Described fire-preventing check valve, it is characterized in that described temperature sense controller comprises copper sheathing, and the copper core of cross-under in copper sheathing, described copper core is welded in copper sheathing with temperature-sensitive material, be provided with spring between above-mentioned copper sheathing, the copper core, both ends of the spring roof pressure is respectively fixed on the card at the spring that copper sheathing, copper core are equipped with.

Described fire-preventing check valve is characterized in that described lampblack absorber interface cooperates the page or leaf that keeps out the wind to be provided with the sealing centring ring.

Described fire-preventing check valve is characterized in that described check valve body below has been equipped with the lubricating cup bayonet socket, is connected with lubricating cup on the lubricating cup bayonet socket.

Described fire-preventing check valve is characterized in that the temperature-sensitive material between described copper sheathing, the copper core is a scolding tin.

Described fire-preventing check valve is characterized in that the head end of described copper core is round end shape structure.

The utility model compared with prior art has the following advantages and good effect at the warm sense controller of the air inlet end increase automatic fire prevention of valve:

1, original guide pipe, check-valves, fire resisting damper are combined, make the multi-purpose valve way, have fire prevention, the anti-function of pouring in down a chimney simultaneously.

2, fire resisting damper and check-valves are combined, the temperature-sensitive point is placed on import department, the fire prevention induction is sensitiveer, makes the fire initial stage just can thoroughly isolate pyrotechnics to valve closing, makes exhaust duct safer, more reliable.

Description of drawings

Fig. 1, Fig. 2 are sectional structure schematic diagrames of the present utility model.

Fig. 3 is the structure for amplifying schematic diagram of warm sense controller in the utility model.

Among the figure, 1, check valve body; 2, lubricating cup; 3, lubricating cup bayonet socket; 4, lampblack absorber interface; 5, wind page or leaf axle; 6, holder; 7, warm sense controller; 8, the page or leaf that keeps out the wind; 9, sealing centring ring; 10, locator card; 11, copper sheathing; 12, spring; 13, copper core.

The specific embodiment

The utility model is described in further detail below in conjunction with Figure of description:

As shown in Figure 1 and Figure 2, fire-preventing check valve, the check valve body 1 that comprises hollow, reach the lampblack absorber interface 4 that check valve body 1 import one side is connected, in the lampblack absorber interface 4 by the wind page or leaf axle 5 hinged pages or leaves 8 that keep out the wind that are provided with, described page or leaf 8 import one sides of blocking of keeping out the wind, and on lampblack absorber interface 4, cooperate the page or leaf 8 that keeps out the wind to be provided with sealing centring ring 9 in check valve body 1, install on the above-mentioned wind page or leaf axle 5 and be provided with holder 6, cooperate the page or leaf 8 that keeps out the wind to be provided with warm sense controller 7 on the holder 6.Described check valve body 1 below has been equipped with lubricating cup bayonet socket 3, is connected with lubricating cup 2 on the lubricating cup bayonet socket 3.

As shown in Figure 3, described temperature sense controller 7 comprises copper sheathing 11, and the copper core 13 of cross-under in copper sheathing 11, described copper core 13 usefulness temperature-sensitive material are welded in copper sheathing 11, be provided with spring 12 between above-mentioned copper sheathing 11, the copper core 13, spring 12 two ends roof pressure are respectively fixed on the card 10 at the spring that copper sheathing 11, copper core 13 are equipped with.

In the present embodiment, the temperature-sensitive material between copper sheathing 11, the copper core 13 is a scolding tin, and the head end of described copper core 11 is round end shape structure.

In the utility model, check valve body 1 is used for and the connecting of exhaust duct air inlet, size matches with the guide pipe interface at exhaust duct air inlet place, fix with self-tapping screw after being inserted in the guide pipe interface, lubricating cup bayonet socket 3 is welded on the check valve body 1, lubricating cup 2 is used to store the greasy dirt of discharging in the lampblack absorber, and lubricating cup 2 is as long as push 3 li of lubricating cup bayonet sockets when mounted.Lampblack absorber interface 4 is welded on the check valve body 1, is used for connecting the air outlet of lampblack absorber.

As Fig. 1, shown in Figure 3, when usual, the spring 12 on the warm sense controller 7 is oppression state, and when lampblack absorber was discharged gas, page or leaf 8 states that are held open that keep out the wind entered in the exhaust duct soot gas.When the air inlet place enters the gas that is higher than set point of temperature (as: 70 ℃), the specific melts soldering tin of temperature sense controller 7, make copper core 13 break away from the welding between scolding tin and the copper sheathing 11 and be subjected to the thrust of spring 12, copper core 13 head ends stretched out and contacted the page or leaf 8 that keeps out the wind this moment, and valve-off is as Fig. 2, stop flame to enter exhaust duct, reach pyrotechnics is isolated, thereby stop stretching of fire, played the function of good fire resisting damper.

This product structure is simple, and is easy for installation, and cost is lower, satisfying the effect of check-valves, can play good fire-proof function again, is highly suitable for dwelling house resident family, safe.

Claims

1. fire-preventing check valve, the check valve body (1) that comprises hollow, reach the lampblack absorber interface (4) that check valve body (1) import one side is connected, it is characterized in that this fire-preventing check valve inwall coordination hinge is provided with the page or leaf (8) that keeps out the wind, the described page or leaf (8) that keeps out the wind blocks import one side in check valve body (1), and is provided with warm sense controller (7) in above-mentioned import one side of keeping out the wind page or leaf (8).

2. fire-preventing check valve as claimed in claim 1, it is characterized in that the described page or leaf (8) that keeps out the wind is articulated in lampblack absorber interface (4) by the wind page or leaf axle (5) that is arranged on the lampblack absorber interface (4), above-mentioned wind page or leaf axle (5) is gone up to install and is provided with holder (6), and described temperature sense controller (7) cooperation is installed on the holder (6).

3. fire-preventing check valve as claimed in claim 1, it is characterized in that described temperature sense controller (7) comprises copper sheathing (11), and the copper core (13) of cross-under in copper sheathing (11), described copper core (13) is welded in copper sheathing (11) with temperature-sensitive material, be provided with spring (12) between above-mentioned copper sheathing (11), the copper core (13), spring (12) two ends roof pressure are respectively fixed on the card (10) at the spring that copper sheathing (11), copper core (13) are equipped with.

4. fire-preventing check valve as claimed in claim 1 is characterized in that described lampblack absorber interface (4) cooperates the page or leaf (8) that keeps out the wind to be provided with sealing centring ring (9).

5. fire-preventing check valve as claimed in claim 1 is characterized in that described check valve body (1) below has been equipped with lubricating cup bayonet socket (3), is connected with lubricating cup (2) on the lubricating cup bayonet socket (3).

6. fire-preventing check valve as claimed in claim 3 is characterized in that the temperature-sensitive material between described copper sheathing (11), the copper core (13) is a scolding tin.

7. fire-preventing check valve as claimed in claim 3 is characterized in that the head end of described copper core (13) is round end shape structure.