CN219177017U

CN219177017U - Fireproof valve

Info

Publication number: CN219177017U
Application number: CN202223523498.9U
Authority: CN
Inventors: 崔沛华; 祝琴琴
Original assignee: Foshan Nanhai Jianyuan Hardware Products Co ltd
Current assignee: Foshan Nanhai Jianyuan Hardware Products Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-13
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a fire-proof valve, which relates to the technical field of fire-proof valves and comprises a valve body, a blade rotating shaft, a blade, a linkage assembly and a fusing mechanism; the linkage assembly is arranged on one side of the fusing mechanism and is connected with the output end of the fusing mechanism; the blade rotating shafts are arranged in a plurality of ways, the blade rotating shafts are arranged in the valve body at intervals along the length direction of the valve body, and each blade rotating shaft is connected with a blade; one end of each blade rotating shaft penetrates through the valve body and is connected with the linkage assembly; the fusing mechanism comprises a box body, an air guide pipe and a fusing piece, wherein the air guide pipe is arranged in the box body, the air guide pipe is communicated with the inner side and the outer side of the box body, the fusing piece is arranged in the box body and opposite to the air guide pipe, and the air guide pipe is of a curved structure; the utility model aims to provide a fireproof valve which can avoid the pollution formed on a fuse element and influence the monitoring effect of the fuse element.

Description

Fireproof valve

Technical Field

The utility model relates to the technical field of fire valves, in particular to a fire valve.

Background

For various buildings, especially high-rise buildings, because the hot flue gas has a chimney effect, when a fire disaster occurs, the flue gas can rapidly spread from a low floor to a high floor, thereby causing rapid spread of fire. The problem that the field of view is limited is also caused by the rising of the smoke, and according to the fire case, the smoke is the most important factor affecting the evacuation of people and the firefighting rescue in the fire, and is also the most important cause of casualties in the fire.

The fire-proof valve is installed on the pipeline of ventilation equipment, etc., and the operating principle is that the temperature of flue gas is monitored through the alloy, and when the temperature exceeds the upper temperature limit of alloy, the alloy breaks, and the valve self-closing plays the effect of separating flue gas, prevents that the fire from spreading rapidly.

In order to monitor the temperature of flue gas, the existing fire-proof valve is generally provided with an alloy in the fire-proof valve body and positioned in a ventilating duct, and in the use environment of heavy oil smoke or heavy dust, the surface of the alloy is easy to cover dirt, so that when a fire disaster occurs, the alloy cannot be heated in time to be broken, and certain potential safety hazards are brought to the use of the fire-proof valve.

Disclosure of Invention

Aiming at the defects, the utility model aims to provide a fire-proof valve which can avoid forming dirt on a fuse element and influencing the monitoring effect of the fuse element.

To achieve the purpose, the utility model adopts the following technical scheme: a fire-proof valve comprises a valve body, a blade rotating shaft, a blade, a linkage assembly and a fusing mechanism;

the linkage assembly is arranged on one side of the fusing mechanism and is connected with the output end of the fusing mechanism;

the blade rotating shafts are arranged in a plurality, the blade rotating shafts are arranged in the valve body at intervals along the length direction of the valve body, and each blade rotating shaft is connected with the blade; one end of each blade rotating shaft penetrates through the valve body and is connected with the linkage assembly;

the fusing mechanism comprises a box body, an air guide pipe and fusing pieces, wherein the air guide pipe is arranged in the box body and communicated with the inner side and the outer side of the box body, the fusing pieces are arranged in the box body and opposite to the air guide pipe, and the air guide pipe is of a curved structure.

Preferably, the linkage assembly comprises a linkage plate, a linkage strip and a connecting block, wherein the middle part of the linkage plate is penetrated in the box body, the linkage strip is provided with a plurality of connecting strips, one ends of the linkage strips are hinged to the linkage plate, the other ends of the linkage strips are connected with one ends of the blade rotating shafts, the linkage strips are parallel, the connecting block is arranged in the middle part of the linkage plate, a guide groove is formed in the bottom of the box body, one end of the connecting block penetrates through the guide groove and then extends into the box body, and one end of the connecting block extending into the box body is connected with the output end of the fusing mechanism.

Preferably, the fusing mechanism further comprises a first fixing part, a telescopic spring and a second fixing part, wherein the first fixing part and the second fixing part are respectively arranged on the inner walls of the two sides of the box body, one end of the telescopic spring is connected with the first fixing part, the other end of the telescopic spring is connected with the connecting block, one end of the fusing piece is connected with the second fixing part, and the other end of the fusing piece is connected with the connecting block; when the fusing piece is connected with the connecting block, the telescopic spring is in a stretching state, the linkage plate is in a first limit, and the blade is in an opening state; when the fuse is disconnected, the telescopic spring is in a contracted state, the linkage plate is in a second limit, and the blade is in a closed state.

Preferably, a first baffle and a second baffle are arranged in the air guide pipe, and the first baffle and the second baffle are distributed in a staggered mode.

Preferably, a clamping block is arranged on the side wall of the valve body, a groove is formed in the clamping block, and when the fuse is disconnected, the end portion of the linkage plate is inserted into the groove.

Preferably, two anti-drop convex blocks are arranged in the groove, and the distance between the two anti-drop convex blocks is smaller than the width of the linkage plate.

Preferably, a first clamping groove is formed in the top of one side of the blade, and a second clamping groove is formed in the bottom of the other side of the blade.

One of the above technical solutions has the following advantages or beneficial effects: through the fuse setting that will be used for detecting the temperature in the box body, the fuse is relative with the guide duct, the guide duct sets up to curved structure, curved structure can block oil smoke granule or dust granule in the flue gas, avoid oil smoke granule or dust granule to cover on the surface of fuse, when can guaranteeing to take place the conflagration, high temperature flue gas gets into in the box body and contacts with the fuse, make the fuse intensify and take place the fracture, can also be in ordinary times use, reduce oily dirt-containing flue gas and fuse direct contact's chance, avoid forming the dirt at the fuse, influence the monitoring effect of fuse.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic side view of one embodiment of the utility model with the linkage plate in a first position;

FIG. 3 is a schematic side view of one embodiment of the utility model with the linkage plate in a second position;

FIG. 4 is an enlarged partial schematic view at A in FIG. 2;

FIG. 5 is a schematic cross-sectional view of a blade according to one embodiment of the utility model;

fig. 6 is a schematic structural diagram of a latch according to an embodiment of the present utility model.

Wherein: valve body 1, fixture block 11, anti-disengaging projection 111, blade pivot 2, blade 3, first draw-in groove 31, linkage subassembly 4, linkage board 41, linkage strip 42, connecting block 43, fusing mechanism 5, box body 51, guide duct 52, first baffle 521, fuse 53, first fixed part 54, extension spring 55, second fixed part 56.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

A fire protection valve according to an embodiment of the present utility model is described below with reference to fig. 1 to 6, and includes a valve body 1, a vane rotary shaft 2, a vane 3, a linkage assembly 4, and a fusing mechanism 5;

the fusing mechanism 5 is arranged on the outer wall of the valve body 1, the linkage assembly 4 is arranged on one side of the fusing mechanism 5, and the linkage assembly 4 is connected with the output end of the fusing mechanism 5;

the blade rotating shafts 2 are arranged in a plurality, the blade rotating shafts 2 are arranged in the valve body 1 at intervals along the length direction of the valve body 1, and each blade rotating shaft 2 is connected with the blade 3; one end of each blade rotating shaft 2 passes through the valve body 1 and is connected with the linkage assembly 4;

the fusing mechanism 5 comprises a box body 51, an air guide pipe 52 and a fusing piece 53, wherein the air guide pipe 52 is arranged in the box body 51, the air guide pipe 52 is communicated with the inner side and the outer side of the box body 51, the fusing piece 53 is arranged in the box body 51 and opposite to the air guide pipe 52, and the air guide pipe 52 is of a curved structure.

The fusing mechanism 5 is in a tensioning state, and the linkage assembly 4 drives each blade rotating shaft 2 to rotate so that the blades 3 rotate to be parallel to the side wall of the valve body 1, and the state is a ventilation state of normal operation; when the fusing mechanism 5 is disconnected, the linkage assembly 4 drives each blade rotating shaft 2 to rotate, so that the blades 3 rotate to a state perpendicular to the side wall of the valve body 1, and the adjacent blades 3 are sequentially lapped to form a sealing structure, and the state is a partition state in fire.

According to the utility model, the fuse piece 53 for detecting the temperature is arranged in the box body 51, the fuse piece 53 is opposite to the air guide pipe 52, the air guide pipe 52 is of a curved structure, the curved structure can prevent oil smoke particles or dust particles in smoke from being covered on the surface of the fuse piece 53, high-temperature smoke can enter the box body 51 to be in contact with the fuse piece 53 when a fire disaster occurs, the fuse piece 53 is heated and broken, the possibility that the oil-containing and dust-containing smoke is in direct contact with the fuse piece 53 can be reduced in normal use, and dirt is prevented from being formed on the fuse piece 53, so that the monitoring effect of the fuse piece 53 is prevented from being influenced.

Preferably, the linkage assembly 4 includes a linkage plate 41, a linkage bar 42 and a connecting block 43, the middle part of the linkage plate 41 is penetrated and arranged in the box body 51, the linkage bar 42 is provided with a plurality of pieces, one end of the linkage bar 42 is hinged with the linkage plate 41, the other end of the linkage bar 42 is connected with one end of the blade rotating shaft 2, the linkage bars 42 are parallel, the connecting block 43 is arranged in the middle part of the linkage plate 41, a guide groove is arranged at the bottom of the box body 51, one end of the connecting block 43 penetrates through the guide groove and then extends into the box body 51, and one end of the connecting block 43 extending into the box body 51 is connected with the output end of the fusing mechanism 5.

By adopting the structure, the linkage plate 41 is connected with the output end of the fusing mechanism 5, the fusing mechanism 5 is in a normal state, the linkage plate 41 and the linkage bar 42 drive the blade 3 to rotate to be parallel to the inner wall of the valve body 1, the ventilation effect is realized, and when the fusing mechanism 5 is disconnected, the linkage plate 41 and the linkage bar 42 drive the blade to rotate to be perpendicular to the inner wall of the valve body 1, so that the partition effect is realized. Through linkage plate 41 and a plurality of linkage bar 42 complex structure, can realize the synchronous control between a plurality of blades 3, can open or close blade 3 simultaneously, control accuracy is high.

Specifically, the fusing mechanism 5 further includes a first fixing portion 54, a telescopic spring 55, and a second fixing portion 56, where the first fixing portion 54 and the second fixing portion 56 are respectively disposed on two side inner walls of the box body 51, one end of the telescopic spring 55 is connected with the first fixing portion 54, the other end of the telescopic spring 55 is connected with the connecting block 43, one end of the fuse 53 is connected with the second fixing portion 56, and the other end of the fuse 53 is connected with the connecting block 43; when the fuse 53 is connected to the connection block 43, the extension spring 55 is in a stretched state, the linkage plate 41 is in a first limit, and the blade 3 is in an open state; when the fuse 53 is opened, the extension spring 55 is in a contracted state, the linkage plate 41 is in a second limit, and the blade 3 is in a closed state.

When the fusing mechanism 5 is in normal operation, the fusing piece 53 plays a role in pulling the acting force of the telescopic spring 55, at the moment, the linkage plate 41 is pulled to be first limit, the blade 3 and the inner wall of the valve body 1 are in an open state in parallel, and when the fusing piece 53 is heated to be broken, the telescopic spring 55 rapidly pulls the linkage plate 41 through the connecting block 43, so that the linkage plate 41 moves to be second limit, and the blade 3 and the inner wall of the valve body 1 are in a closed state vertically.

Preferably, a first baffle 521 and a second baffle are disposed in the air duct 52, and the first baffle 521 and the second baffle are distributed in a staggered manner. The first baffle 521 and the second baffle can further block the soot particles or dust particles in the flue gas, and prevent the soot particles or dust particles from covering the surface of the fuse 53.

Specifically, the side wall of the valve body 1 is provided with a block 11, the block 11 is provided with a groove, and when the fuse 53 is broken, the end of the linkage plate 41 is inserted into the groove. Meanwhile, two anti-drop protrusions 111 are arranged in the groove, and the distance between the two anti-drop protrusions 111 is smaller than the width of the linkage plate 41.

When the linkage plate 41 moves to the second limit, the end part of the linkage plate 41 is inserted into the groove and is clamped by the anti-falling lugs 111 on the two sides, so that gaps between the blades 3 caused by loosening of the linkage plate 41 are prevented, and the effect of isolating fire is affected.

Preferably, a first clamping groove 31 is formed at the top of one side of the blade 3, and a second clamping groove is formed at the bottom of the other side of the blade 3.

Specifically, in this embodiment, when the air ventilation is closed to the fire damper, blade 3 rotates for a plurality of blades 3 rotate to the coplanar, thereby with the vent shutoff of fire damper, at this moment, the first draw-in groove 31 of blade 3 of below and the second draw-in groove of blade 3 of top laminate each other, thereby form the effect of screens, effectively improve the inseparable of being connected between the blade 3, avoid producing the problem that the gap leads to the air leakage between two blades 3.

Other constructions, etc., and operation of a fire damper for automatically controlling a rotation angle according to embodiments of the present utility model are known to those skilled in the art, and will not be described in detail herein.

In the description herein, reference to the term "embodiment," "example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The fire-proof valve is characterized by comprising a valve body, a blade rotating shaft, a blade, a linkage assembly and a fusing mechanism;

2. The fire protection valve according to claim 1, wherein the linkage assembly comprises a linkage plate, a linkage bar and a connecting block, the middle part of the linkage plate is penetrated in the box body, the linkage bar is provided with a plurality of linkage bars, one ends of the plurality of linkage bars are hinged with the linkage plate, the other ends of the plurality of linkage bars are connected with one ends of the blade rotating shafts, the plurality of linkage bars are parallel, the connecting block is arranged in the middle part of the linkage plate, a guide groove is formed in the bottom of the box body, one ends of the connecting block penetrate through the guide groove and then extend into the box body, and one ends of the connecting block extending into the box body are connected with the output end of the fusing mechanism.

3. The fire protection valve according to claim 2, wherein the fusing mechanism further comprises a first fixing part, a telescopic spring and a second fixing part, the first fixing part and the second fixing part are respectively arranged on two side inner walls of the box body, one end of the telescopic spring is connected with the first fixing part, the other end of the telescopic spring is connected with the connecting block, one end of the fusing element is connected with the second fixing part, and the other end of the fusing element is connected with the connecting block; when the fusing piece is connected with the connecting block, the telescopic spring is in a stretching state, the linkage plate is in a first limit, and the blade is in an opening state; when the fuse is disconnected, the telescopic spring is in a contracted state, the linkage plate is in a second limit, and the blade is in a closed state.

4. The fire protection valve according to claim 1, wherein a first baffle and a second baffle are arranged in the air guide pipe, and the first baffle and the second baffle are distributed in a staggered manner.

5. A fire protection valve according to claim 2, wherein the side wall of the valve body is provided with a block, the block is provided with a groove, and when the fuse is broken, the end of the linkage plate is inserted into the groove.

6. The fire protection valve according to claim 5, wherein two anti-drop protrusions are disposed in the groove, and a distance between the two anti-drop protrusions is smaller than a width of the linkage plate.

7. The fire protection valve according to claim 1, wherein a first clamping groove is formed in the top of one side of the vane, and a second clamping groove is formed in the bottom of the other side of the vane.