CN220600545U - Fireproof structure of flue check valve - Google Patents

Abstract

The application relates to a fire-proof structure of flue check valve, which comprises a valve body, wherein an exhaust passage is arranged on the valve body, one end of the exhaust passage penetrates through the valve body to form an air inlet, the other end penetrates through the valve body to form an air outlet, the valve body is pivoted with an exhaust valve cover for covering the air outlet at the air outlet, and a fire-proof component is arranged on the valve body; the fireproof assembly comprises a fireproof baffle rod which is slidably arranged on the valve body, a traction piece for traction of the fireproof baffle rod and a fusing piece for mounting the fireproof baffle rod on the valve body; the fire-proof baffle rod is provided with a butt piece towards one side of the exhaust valve cover, and the butt piece is abutted against one side of the exhaust valve cover, which is away from the air outlet. The fire resistance of the flue check valve can be improved, and external fire is reduced to spread to the room through the exhaust passage of the flue check valve.

Description

Fireproof structure of flue check valve

Technical Field

The application relates to the technical field of flue fireproof check valve parts, in particular to a flue fireproof check valve fireproof structure.

Background

At present, high-rise houses are popular, a plurality of families in the high-rise houses share a lampblack pipeline which is arranged from top to bottom, exhaust pipes of the household lampblack absorber are connected with the lampblack pipeline, a flue fireproof check valve is arranged at the joint of the lampblack pipeline and the exhaust pipes when the exhaust pipes of the lampblack absorber are arranged, the lampblack backflow of mixed lampblack in the lampblack pipeline can be reduced to the indoor through the flue fireproof check valve, and when a fire disaster occurs in the lampblack pipeline, the fire disaster in the lampblack pipeline can be reduced to spread to the indoor through the flue fireproof check valve.

Referring to fig. 1, the fire-proof check valve for flue generally includes a valve body, an exhaust channel for exhausting fume is provided on the valve body, the exhaust channel penetrates through one side of the valve body to form an air inlet and penetrates through the other side of the valve body to form an air outlet, a valve cover is pivoted on one side of the valve body close to the air outlet, and the valve cover is sealed on the air outlet. The valve body is provided with the fire prevention subassembly in the one side that is close to the gas outlet, and the fire prevention subassembly is including sliding the shelves pole of installing in valve body one side that is close to the gas outlet, and the shelves pole has unblock station and locking station on the valve body, and when shelves pole was in the unblock station, the valve gap can be opened, and when shelves pole was in the locking station, the valve gap covered in gas outlet department. The fire-proof component further comprises a driving piece used for pulling the baffle rod from the unlocking station to the locking station and a fusing piece used for fixing the baffle rod to the unlocking station, wherein the fusing piece is made of metal with a lower melting point, so that when a fire disaster occurs in the oil smoke pipeline, the fusing piece reaches the melting point to fuse, the baffle rod is released, and the baffle rod is displaced to the locking station under the action of the driving piece, so that the valve cover cannot be opened, and the spread of external fire through smoke exhaust to the indoor exhaust pipe can be reduced.

At present, the guide slots for the two ends of the baffle rod to be clamped into and slide from the unlocking station to the locking station are formed in the two opposite sides of the valve body, the width of each guide slot is slightly larger than the diameter of the baffle rod, when the baffle rod is positioned at the locking station, the baffle rod is easy to move at the locking station, a gap is easily formed between the valve cover and the edge of the air outlet, and therefore the fire resistance of the flue check valve is easy to be reduced.

Disclosure of Invention

In order to improve the fire resistance of the flue check valve, the application provides a fire protection structure of the flue check valve.

The application provides a fire prevention structure of flue check valve adopts following technical scheme:

the fire-proof valve comprises a valve body, wherein an exhaust channel for exhausting flue gas is formed in the valve body, one end of the exhaust channel penetrates through the valve body to form an air inlet, the other end of the exhaust channel penetrates through the valve body to form an air outlet, an exhaust valve cover for covering the air outlet is pivoted at the air outlet of the valve body, and a fire-proof component is arranged on the valve body; the fire-proof assembly comprises a fire-proof baffle rod which is slidably arranged on the valve body, a traction piece for traction of the fire-proof baffle rod and a fuse piece for mounting the fire-proof baffle rod on the valve body, the fire-proof baffle rod is provided with a first station and a second station, when the fire-proof baffle rod is positioned at the first station, the fuse piece is used for fixing the fire-proof baffle rod to be arranged on the upper side of the exhaust valve cover, when the fire-proof baffle rod is positioned at the second station, the fire-proof baffle rod is separated from the fuse piece and slides to the outer side of the exhaust valve cover so that the exhaust valve cover cannot be opened, and the traction piece drives the fire-proof baffle rod to slide from the first station to the second station; and a supporting piece is arranged on one side of the fireproof baffle rod, which faces the exhaust valve cover, and when the fireproof baffle rod is in the second station, the supporting piece is abutted against one side of the exhaust valve cover, which is away from the air outlet.

Through adopting above-mentioned technical scheme, when using this flue check valve, normal use in-process, flue gas is through lampblack absorber suction to the air inlet and through the gas outlet roof-open exhaust valve gap discharge outdoor of exhaust passage, and in-process, fire prevention shelves pole passes through fuse fixed mounting on the valve body for exhaust valve gap can normally be opened and close. When fire disaster occurs in the external oil smoke pipeline, the temperature of the flue check valve is higher, so that the fusing element fuses, the fireproof baffle rod slides to the second station from the first station, the fireproof baffle rod is propped against the outer side of the exhaust valve cover, the exhaust valve cover can not be opened, and the propping piece on the fireproof baffle rod is propped against one side of the exhaust valve cover, which is away from the air outlet, of the exhaust valve cover, thereby reducing the occurrence of the condition that external fire is spread indoors through the exhaust channel, and improving the fireproof performance of the flue check valve.

Optionally, the abutting piece comprises a fixing part used for being connected with the fireproof baffle rod and a limiting part abutting on the exhaust valve cover.

Through adopting above-mentioned technical scheme, when fire prevention shelves pole supports in the exhaust valve gap outside, the spacing portion of butt joint piece supports in the outside of exhaust valve gap, can prevent from opening the exhaust valve gap from this, and spacing portion passes through fixed part to be connected on fire prevention shelves pole, and this connection structure is more stable, and from this accessible butt joint piece plays spacing effect to the exhaust valve gap steadily.

Optionally, the fixing portion and the limiting portion are integrally disposed.

Through adopting above-mentioned technical scheme, the fixed part sets up with spacing portion an organic whole can improve the stability of structure between fixed part and the spacing portion, can make the butt piece stop exhaust valve gap more steadily and open from this.

Optionally, the limiting part is detachably mounted on the fixing part.

Through adopting above-mentioned technical scheme, when the fire prevention shelves pole was in second station department, the fire prevention shelves pole supported in the exhaust valve gap outside, and when the exhaust valve gap was opened and close because inside and outside atmospheric pressure is different, the exhaust valve gap was liable to produce the collision with spacing portion, when spacing portion took place wearing and tearing or when damaging, can dismantle spacing portion and change, from this convenient maintenance and loading and unloading.

Optionally, the spacing portion towards one side of exhaust valve gap is equipped with elasticity and supports the piece, elasticity support the piece including be used for with spacing portion lateral wall connection's spring and with spring end connection butt in exhaust valve cover is last the elastic plate.

Through adopting above-mentioned technical scheme, when the fire prevention shelves pole is in the second station, spacing portion is used for blockking the exhaust valve gap and opens, and the elasticity supports the piece and supports tightly in the outside of exhaust valve gap, and the elastic plate supports tightly in the outside of exhaust valve gap under the drive of spring, and accessible elasticity supports tightly in the exhaust valve gap from the one side of gas outlet from this, can block exhaust valve gap more steadily and open.

Optionally, a cushion pad for abutting against the exhaust valve cover is arranged on one side of the elastic plate, which faces the exhaust valve cover.

Through adopting above-mentioned technical scheme, when the elastic plate supports tightly in exhaust valve gap one side, the exhaust valve gap is liable to take place wearing and tearing or collision between with the elastic plate, and the elastic plate is equipped with buffer pad towards one side of exhaust valve gap, and accessible buffer pad plays the cushioning effect between elastic plate and the exhaust valve gap, and reducible elastic plate and exhaust valve gap take place collision and wearing and tearing between.

Optionally, a guiding inclined plane is arranged on the bottom side of the elastic plate facing to one side of the exhaust valve cover.

Through adopting above-mentioned technical scheme, when fire prevention shelves pole slides to the second station from first station, the elastic plate is hugged closely in the exhaust valve gap outside and is slided, and the guide slope that the elastic plate bottom side set up can lead the slip of elastic plate and reducible elastic plate and exhaust valve gap between take place to interfere.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fireproof baffle rod is provided with the abutting piece on one side facing the exhaust valve cover, and the abutting piece on the fireproof baffle rod abuts against one side, away from the air outlet, of the exhaust valve cover, so that the condition that external fire spreads indoors through the exhaust channel can be reduced;

2. the elastic propping piece is arranged on one side of the limiting part facing the exhaust valve cover, can be propped against one side of the exhaust valve cover, which is away from the air outlet, through the elastic propping piece, and can be used for more stably blocking the exhaust valve cover from being opened;

3. the elastic plate of this application is provided with the cushion pad towards one side of exhaust valve gap, and accessible cushion pad plays the cushioning effect between to elastic plate and the exhaust valve gap, reducible collision and wearing and tearing take place between elastic plate and the exhaust valve gap.

Drawings

Fig. 1 is a schematic overall structure of a fire protection structure of a flue check valve according to embodiment 1 of the present application.

Fig. 2 is a partial cross-sectional view of a flue check valve fire protection structure of embodiment 1 of the present application.

Fig. 3 is a partial cross-sectional view of a flue check valve fire protection structure of example 1 of the present application.

Fig. 4 is an enlarged view of fig. 3 at a.

Reference numerals illustrate: 1. a valve body; 11. an exhaust passage; 12. an air inlet; 13. an air outlet; 14. an exhaust valve cover; 2. a fire protection assembly; 21. a fire-proof stop lever; 22. a traction member; 23. a fuse; 3. a contact piece; 31. a fixing part; 32. a limit part; 4. an elastic supporting piece; 41. a spring; 42. an elastic plate; 43. a buffer pad; 44. and a guiding inclined plane.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

Example 1:

embodiment 1 of the application discloses a flue check valve fire prevention structure. Referring to fig. 1, the flue check valve fire protection structure includes a valve body 1.

Referring to fig. 2, the valve body 1 is provided with an exhaust channel 11 for exhausting flue gas, one end of the exhaust channel 11 penetrates through one side of the valve body 1 to form an air inlet 12 for allowing flue gas to enter, and the other end of the exhaust channel 11 penetrates through the other side of the valve body 1 to form an air outlet 13 for exhausting flue gas. The valve body 1 is pivoted with an exhaust valve cover 14 for covering the air outlet 13 at one side of the air outlet 13. When the flue check valve is used, flue gas is sucked to the air inlet 12 through the range hood, flows through the air outlet 13 through the exhaust channel 11 and is ejected out of the room by the exhaust valve cover 14, and after the flue gas is discharged, the exhaust valve cover 14 covers the air outlet 13, so that the condition that the flue gas in an external flue gas pipeline flows back to the room can be reduced.

Referring to fig. 2, the valve body 1 is provided with a fire protection assembly 2 at one side of the air outlet 13. The fire protection assembly 2 comprises a fire protection bar 21 slidably mounted on the valve body 1, a traction member 22 for traction of the fire protection bar 21, and a fuse member 23 for mounting the fire protection bar 21 on the valve body 1. The fire bar 21 has a first position and a second position, and when the fire bar 21 is in the first position, the fuse 23 fixedly mounts the fire bar 21 to the top side of the exhaust valve cover 14 and the traction member 22 is in a stretched state. When the fireproof bar 21 is in the second station, the fusing element 23 is disconnected, the fireproof bar 21 is separated from the fusing element 23 and slides to the outer side of the exhaust valve cover 14, and the exhaust valve cover 14 cannot be opened, and in the process, the traction element 22 drives the fireproof bar 21 to slide from the first station to the second station. When fire occurs in an external oil smoke pipeline, the temperature of the flue check valve is higher, the fusing piece 23 fuses, the fireproof baffle rod 21 slides from the first station to the second station, the fireproof baffle rod 21 abuts against the outer side of the exhaust valve cover 14, and therefore the exhaust valve cover 14 cannot be opened, the occurrence of the condition that external fire spreads indoors through the exhaust channel 11 can be reduced, and the fireproof performance of the flue check valve can be improved.

Referring to fig. 3 and 4, the fire-blocking lever 21 is provided with an abutment piece 3 on the side facing the exhaust valve cover 14. The abutment piece 3 includes a fixing portion 31 for connecting with the fire stop lever 21 and a stopper portion 32 abutting against the exhaust valve cover 14. In this embodiment, the fireproof bar 21 is cylindrical, the fixing portion 31 is a cylindrical connecting piece fixedly sleeved on the fireproof bar 21, the limiting portion 32 is a square plate, and the fireproof bar 21 is provided with a contact piece 3 on two opposite sides of the fuse piece, so that interference between the contact piece 3 and the fuse piece can be reduced. When the fireproof blocking rod 21 is at the second station, the fireproof blocking rod 21 abuts against the outer side of the exhaust valve cover 14, the limiting part 32 of the abutting piece 3 abuts against the outer side of the exhaust valve cover 14, so that the exhaust valve cover 14 can be prevented from being opened, the limiting part 32 is connected to the fireproof blocking rod 21 through the fixing part 31, the connecting structure is stable, and therefore the limiting effect on the exhaust valve cover 14 can be stably achieved through the abutting piece 3.

Referring to fig. 4, there are various connection modes of the fixing portion 31 and the limiting portion 32, in this embodiment, the fixing portion 31 and the limiting portion 32 are integrally disposed, the connection mode is stable, and the stability of the structure between the fixing portion 31 and the limiting portion 32 can be improved, so that the abutment piece 3 can more stably block the exhaust valve cover 14 from being opened.

Referring to fig. 4, the side of the limiting portion 32 facing the exhaust valve cover 14 is provided with an elastic abutment 4. The elastic support 4 includes a spring 41 connected to the side wall of the limiting portion 32, and an elastic plate 42 connected to the end of the spring 41 and abutting against the exhaust valve cover 14. In this embodiment, the elastic plate 42 is configured as a square plate, one end of the spring 41 is fixedly connected to the limiting portion 32, the other end of the spring 41 is fixedly connected to the elastic plate 42, when the fireproof bar 21 is in the second station, the limiting portion 32 is used for blocking the exhaust valve cover 14 from opening, the elastic supporting member 4 abuts against the outer side of the exhaust valve cover 14, and the elastic plate 42 abuts against the outer side of the exhaust valve cover 14 under the driving of the spring 41, so that the opening of the exhaust valve cover 14 can be blocked more stably by the elastic supporting member 4 abutting against the side of the exhaust valve cover 14 away from the air outlet 13.

Referring to fig. 4, the side of the elastic plate 42 facing the exhaust valve cover 14 is provided with a cushion pad 43 for abutting against the exhaust valve cover 14. In this embodiment, the buffer pad 43 is adhered to the elastic plate 42, and the buffer pad 43 is adhered to the elastic plate 42, so that when the elastic plate 42 abuts against one side of the exhaust valve cover 14, the exhaust valve cover 14 is prone to wear or collision with the elastic plate 42, and the buffer pad 43 is disposed on one side of the elastic plate 42 facing the exhaust valve cover 14, so that the buffer pad 43 can buffer the elastic plate 42 and the exhaust valve cover 14, and the collision and wear between the elastic plate 42 and the exhaust valve cover 14 can be reduced.

Referring to fig. 4, the elastic plate 42 is provided with a guide slope 44 toward the bottom side of the exhaust valve cover 14 side. When the fireproof blocking rod 21 slides from the first station to the second station, the elastic plate 42 slides closely to the outer side of the exhaust valve cover 14, and the guiding inclined surface 44 arranged at the bottom side of the elastic plate 42 can guide the sliding of the elastic plate 42 and reduce interference between the elastic plate 42 and the exhaust valve cover 14.

The implementation principle of the fire-proof structure of the flue check valve in the embodiment 1 of the application is as follows:

when the flue check valve is used, when a fire disaster occurs in an external oil smoke pipeline, the temperature of the flue check valve is increased, so that the fusing element 23 is fused, the fireproof baffle rod 21 is released, the fireproof baffle rod 21 slides towards the second station under the drive of the traction element 22, and when the fireproof baffle rod 21 slides to the second station, the fireproof baffle rod 21 abuts against the outer side of the exhaust valve cover 14 and the abutting piece 3 abuts against the outer side of the exhaust valve cover 14, and meanwhile, the elastic plate 42 on the limiting part 32 of the abutting piece 3 abuts against the outer side of the exhaust valve cover 14 under the drive of the spring 41, so that the condition that the exhaust valve cover 14 is opened in the fire disaster process, so that the fire disaster enters a room through the exhaust channel 11 can be reduced.

Example 2:

the fire prevention structure of the flue check valve in this embodiment is the same as that in embodiment 1 except that the connection manner of the limiting portion 32 and the fixing portion 31 is different.

In this embodiment, the limiting portion 32 is detachably mounted on the fixing portion 31, and the limiting portion 32 is mounted on the fixing portion 31 through a bolt fastener, so that the connection mode is flexible, when the fireproof blocking rod 21 is located at the second station, the fireproof blocking rod 21 abuts against the outer side of the exhaust valve cover 14, when the exhaust valve cover 14 is opened and closed due to different internal and external air pressures, the exhaust valve cover 14 is easy to collide with the limiting portion 32, and when the limiting portion 32 is worn or damaged, the limiting portion 32 can be detached for replacement, thereby facilitating maintenance and assembly and disassembly.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (7)

1. The utility model provides a flue check valve fire prevention structure, includes valve body (1), offer on valve body (1) and be used for supplying flue gas exhaust passage (11), the one end of exhaust passage (11) runs through valve body (1) is formed with air inlet (12) and the other end runs through valve body (1) is formed with gas outlet (13), valve body (1) are in gas outlet (13) department pin joint has be used for covering gas outlet (13) exhaust valve gap (14), be equipped with fire prevention subassembly (2) on valve body (1); the fire protection assembly (2) comprises a fire protection baffle rod (21) which is slidably mounted on the valve body (1), a traction piece (22) for traction of the fire protection baffle rod (21) and a fuse piece (23) for mounting the fire protection baffle rod (21) on the valve body (1), wherein the fire protection baffle rod (21) is provided with a first station and a second station, when the fire protection baffle rod (21) is in the first station, the fuse piece (23) is used for fixing the fire protection baffle rod (21) to be placed on the upper side of the exhaust valve cover (14), when the fire protection baffle rod (21) is in the second station, the fire protection baffle rod (21) is separated from the fuse piece (23) to slide to the outer side of the exhaust valve cover (14) and the exhaust valve cover (14) cannot be opened, and the traction piece (22) is used for driving the fire protection baffle rod (21) to slide from the first station to the second station; the fire-proof valve is characterized in that a supporting piece (3) is arranged on one side, facing the exhaust valve cover (14), of the fire-proof baffle rod (21), and when the fire-proof baffle rod (21) is in the second station, the supporting piece (3) is abutted against one side, facing away from the air outlet (13), of the exhaust valve cover (14).

2. A flue check valve fire protection structure according to claim 1, characterized in that the abutment piece (3) comprises a fixing part (31) for connection with the fire protection lever (21) and a limit part (32) abutting on the exhaust valve cover (14).

3. A flue check valve fire protection structure according to claim 2, wherein the fixing portion (31) is integrally provided with the limiting portion (32).

4. A flue check valve fire protection structure according to claim 2, wherein the limiting portion (32) is detachably mounted on the fixing portion (31).

5. A flue check valve fireproof structure according to claim 2, characterized in that the side of the limit part (32) facing the exhaust valve cover (14) is provided with an elastic supporting piece (4), and the elastic supporting piece (4) comprises a spring (41) connected with the side wall of the limit part (32) and an elastic plate (42) connected with the end part of the spring (41) and abutting against the exhaust valve cover (14).

6. The flue check valve fireproof structure according to claim 5, wherein a side of the elastic plate (42) facing the exhaust valve cover (14) is provided with a cushion pad (43) for abutting against the exhaust valve cover (14).

7. A flue check valve fire protection structure according to claim 5, wherein the bottom side of the elastic plate (42) facing the exhaust valve cover (14) side is provided with a guiding slope (44).