阅读说明：本技术 一种高消防安全性的防火阀 (Fire prevention valve of high fire control security ) 是由 崔沛华 于 2019-12-05 设计创作，主要内容包括：本发明公开了一种高消防安全性的防火阀,包括进风管道和出风管道,进风管道的后端与出风管道的下部相连通,进风管道的前端面为进风口,出风管道的顶端面为出风口；进风管道与出风管道呈夹角设计；进风管道和出风管道为一体成型；出风口处设置有防火盖,防火盖与出风口的连接处设置有高温熔断件；防火盖为常开状态,当高温熔断件断开后,防火盖落下关闭出风口。本发明的防火阀具有密封性能好、消防安全性高、生产工艺步骤简单、使公共烟道内烟气排放的顺畅和提高室内烟气排放的速度的特点。(The invention discloses a fire-proof valve with high fire safety, which comprises an air inlet pipeline and an air outlet pipeline, wherein the rear end of the air inlet pipeline is communicated with the lower part of the air outlet pipeline; the air inlet pipeline and the air outlet pipeline are designed to form an included angle; the air inlet pipeline and the air outlet pipeline are integrally formed; a fireproof cover is arranged at the air outlet, and a high-temperature fuse is arranged at the joint of the fireproof cover and the air outlet; the fireproof cover is in a normally open state, and when the high-temperature fuse element is disconnected, the fireproof cover falls down to close the air outlet. The fire-proof valve has the characteristics of good sealing performance, high fire-fighting safety, simple production process steps, smoothness in smoke emission in the public flue and improvement of indoor smoke emission speed.)

1. The fire-fighting safety-high fire-fighting valve is characterized by comprising an air inlet pipeline and an air outlet pipeline, wherein the rear end of the air inlet pipeline is communicated with the lower part of the air outlet pipeline; the air inlet pipeline and the air outlet pipeline are designed to form an included angle; the air inlet pipeline and the air outlet pipeline are integrally formed;

a fireproof cover is arranged at the air outlet, and a high-temperature fuse is arranged at the joint of the fireproof cover and the air outlet; the fireproof cover is in a normally open state, and when the high-temperature fuse element is disconnected, the fireproof cover falls down to close the air outlet.

2. The fire protection valve with high fire safety according to claim 1, wherein the fire protection cover is provided with a telescopic device, the fire protection cover is rotatably connected with the top of the air outlet pipeline through a rotating shaft, the rotating shaft is sleeved with a spring, one end of the spring is fixed with the rotating shaft, the other end of the spring is connected with one end of a high-temperature fuse link, and the other end of the high-temperature fuse link is fixedly connected with the telescopic device;

the air outlet is provided with a clamping groove corresponding to the telescopic device; and when the high-temperature fuse element is disconnected, the telescopic device extends out of the fireproof cover and is clamped into the clamping groove.

3. The fire valve with high fire safety according to claim 2, wherein the expansion device comprises a latch and a retractable spring, the fire cover has a position-limiting portion, the tail end of the latch has a connecting rod, one end of the connecting rod is connected with the latch, the other end of the connecting rod passes through the position-limiting portion and is connected with the high-temperature fuse, the retractable spring is sleeved on the connecting rod, one end of the retractable spring abuts against the tail end of the latch, and the other end of the retractable spring abuts against the position-limiting portion.

4. A fire damper of high fire safety according to claim 2, characterised in that the slot is formed by a rolled edge at the top end of the air outlet duct.

5. The fire damper with high fire safety as claimed in claim 1, wherein the air inlet duct and the air outlet duct are both made of metal, and the air inlet duct and the air outlet duct are integrally formed by a stretching process.

6. The fire damper with high fire safety as recited in claim 1, wherein the air outlet pipe has an extension section, the extension section is located above the air inlet, and the extension section and the air outlet pipe are integrally formed.

7. The fire safety fire damper as recited in claim 1, wherein the bottom end surface of the air outlet duct is substantially hemispherical, and the connection between the air inlet duct and the air outlet duct is located above the bottom end surface.

8. The fire damper with high fire safety as claimed in claim 1, wherein the air inlet is provided with a spring device and a rotatable air inlet cover, one end of the spring device is connected with one side of the air inlet cover, the other end of the spring device is connected with the inner wall of the air inlet pipeline, the spring device is located on one side of the air inlet cover, which is far away from the air outlet pipeline, and the air inlet cover can be opened towards the air outlet pipeline.

9. A fire damper of high fire safety according to claim 8, wherein the opening degree of the air intake cover is 40 ° -50 °.

10. A fire safety fire damper as recited in claim 8, wherein the shape of the outlet is circular, oval, semicircular, square or trapezoidal.

Technical Field

The invention relates to the technical field of valves, in particular to a fire-proof valve with high fire safety.

Background

A public flue is usually arranged in a high-rise residence of a city, and a fire-proof valve is arranged in public installation and used for smoke exhaust of an indoor range hood. The existing fire damper consists of a body and a panel, wherein the body is provided with an air inlet and an air outlet, the body is approximately rectangular so as to facilitate the installation of a fire-proof cover plate, and the air inlet is arranged on the panel under some conditions. The body of the fire damper which is approximately rectangular is formed by welding or riveting a plurality of metal plates, and the connection mode not only consumes large labor force, but also has difficult guarantee of the sealing effect.

A plurality of fire prevention valves are installed in the same public flue of high-rise residence, and the flue gas is discharged from the top down on the right, and the fire prevention valve body that is roughly the rectangle produces great hindrance effect to the flue gas, and the flue gas is discharged smoothly inadequately.

The fire prevention valve is provided with the fire prevention apron, and the lower part and the fire prevention valve body of current fire prevention apron are articulated, and the upper end is connected through two connecting pieces with the panel, and one of them connecting piece is high temperature fusing material. When the fire damper is installed, the panel is tightly attached to the wall, the panel has a larger area due to the fixing mode of the fire damper cover plate, and a public flue needs to be provided with a larger installation hole, so that the fire damper installation structure has higher requirements. Meanwhile, after the fireproof cover plate is closed under the influence of high temperature, if gas enters the gas inlet, the fireproof cover plate can still be jacked open, and the safety performance needs to be enhanced.

Disclosure of Invention

The invention aims to provide a fire-proof valve with high fire-fighting safety, which has the characteristics of good sealing effect and high safety performance.

In order to achieve the purpose, the invention adopts the following technical scheme:

a fire-proof valve with high fire safety comprises an air inlet pipeline and an air outlet pipeline, wherein the rear end of the air inlet pipeline is communicated with the lower part of the air outlet pipeline, the front end surface of the air inlet pipeline is an air inlet, and the top end surface of the air outlet pipeline is an air outlet; the air inlet pipeline and the air outlet pipeline are designed to form an included angle; the air inlet pipeline and the air outlet pipeline are integrally formed;

a fireproof cover is arranged at the air outlet, and a high-temperature fuse is arranged at the joint of the fireproof cover and the air outlet; the fireproof cover is in a normally open state, and when the high-temperature fuse element is disconnected, the fireproof cover falls down to close the air outlet.

Furthermore, the fireproof cover is provided with a telescopic device, the fireproof cover is rotatably connected with the top of the air outlet pipeline through a rotating shaft, the rotating shaft is sleeved with a spring, one end of the spring is fixed with the rotating shaft, the other end of the spring is connected with one end of the high-temperature fuse-link, and the other end of the high-temperature fuse-link is fixedly connected with the telescopic device;

the air outlet is provided with a clamping groove corresponding to the telescopic device; when the high-temperature fuse-link breaks, the telescopic device extends out of the fireproof cover and is clamped into the clamping groove.

Furthermore, the telescopic device comprises a clamping tongue and a telescopic spring, the fireproof cover is provided with a limiting part, the tail end of the clamping tongue is provided with a connecting rod, one end of the connecting rod is connected with the clamping tongue, the other end of the connecting rod penetrates through the limiting part to be connected with the high-temperature fuse part, the telescopic spring is sleeved on the connecting rod, one end of the telescopic spring abuts against the tail end of the clamping tongue, and the other end of the telescopic spring abuts against the limiting part.

Furthermore, the clamping groove is formed by a curled edge at the top end of the air outlet pipeline.

Furthermore, the air inlet pipeline and the air outlet pipeline are both made of metal materials and are integrally formed through a stretching process.

Furthermore, the air outlet pipeline is provided with an extension section, the extension section is positioned above the air inlet, and the extension section and the air outlet pipeline are integrally formed.

Furthermore, the bottom end face of the air outlet pipeline is roughly hemispherical, and the joint of the air inlet pipeline and the air outlet pipeline is positioned above the bottom end face.

Further, the air inlet department is provided with spring assembly and rotatable air inlet lid, and spring assembly's one end is connected with an air inlet lid side, and spring assembly's the other end is connected with the inner wall of air-supply line, and spring assembly is located one side that air inlet lid deviates from the air-out pipeline, and air inlet lid can be opened towards the air-out pipeline.

Furthermore, the opening degree of the air inlet cover is 40-50 degrees.

Furthermore, the shape of the air outlet is round, oval, semicircular, square or trapezoidal.

The invention has the beneficial effects that:

1. the air inlet pipeline and the air outlet pipeline are integrally formed, so that the forming process of the fire damper is simplified to a great extent, the production efficiency is improved, the labor intensity is reduced, meanwhile, the sealing performance of the fire damper body is greatly improved by the integrally forming mode, the smoke backflow can be prevented, and the fire safety is improved.

2. The fireproof cover capable of being locked is arranged at the air outlet, when a fire disaster happens, the fireproof cover can seal the air outlet, smoke is prevented from entering a room, the smoke is prevented from flowing backwards better, and the fire safety is improved. Meanwhile, the high-temperature fuse element is arranged at the joint of the fireproof cover and the air outlet, so that the installation space required by the fireproof valve is greatly saved, and the installation difficulty is simplified.

3. The bottom of the antiskid valve is roughly hemispherical, so that the resistance to smoke in the public flue is reduced to a great extent, and the smooth emission of the smoke is improved.

4. The air outlet channel is provided with the extension section, so that the length of the air outlet channel is increased, a chimney effect is generated, and the speed of indoor smoke emission is increased.

The fire damper of the invention overcomes the defects in the assembly process and the structural design of the existing various fire dampers.

Drawings

FIG. 1 is a schematic structural view of a fire damper according to an embodiment of the present invention;

FIG. 2 is a schematic view of the fire damper of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the fire damper spring assembly of FIG. 1;

FIG. 4 is a schematic view of the fire damper extension and retraction apparatus of FIG. 1;

the air inlet pipe 1, the air outlet pipe 2, the fireproof cover 3, the expansion device 4, the spring device 5, the air inlet cover 6, the air inlet 11, the air outlet 21, the extension section 22, the bottom end face 23, the high-temperature fuse element 31, the rotating shaft 32, the spring 33, the abutting piece 34, the clamping tongue 41, the expansion spring 42, the connecting rod 51, the fixed seat 52 and the switch spring 53.

Detailed Description

The technical solution of the present invention is further described below with reference to the accompanying drawings and the detailed description.

As shown in fig. 1-4, the present invention provides a fire damper with high fire safety, which comprises an air inlet duct 1 and an air outlet duct 2, wherein the rear end of the air inlet duct 1 is communicated with the lower part of the air outlet duct 2, the front end surface of the air inlet duct 1 is an air inlet 11, and the top end surface of the air outlet duct 2 is an air outlet 21; the air inlet pipeline 1 and the air outlet pipeline 2 are designed to form an included angle; the air inlet pipeline 1 and the air outlet pipeline 2 are integrally formed;

a fireproof cover 3 is arranged at the air outlet 2, and a high-temperature fuse part 31 is arranged at the joint of the fireproof cover 3 and the air outlet 2; the fireproof cover 3 is in a normally open state, and when the high-temperature fuse element 31 is disconnected, the fireproof cover 3 falls down to close the air outlet 21.

The air inlet pipeline 1 and the air outlet pipeline 2 are integrally formed, so that the forming process of the fire damper is simplified to a great extent, the production efficiency is improved, the labor intensity is reduced, meanwhile, the sealing performance of the fire damper body is greatly improved in the integrally formed mode, the backflow of smoke can be prevented, and the fire safety is improved.

The high-temperature fuse element 31 is arranged at the joint of the fireproof cover 3 and the air outlet 21, so that the installation space required by the fireproof valve is greatly saved, and the installation difficulty is simplified. Meanwhile, the joint of the fireproof cover 3 and the air outlet 21 and the air inlet pipeline 1 are positioned on the same side of the air outlet pipeline 2, so that the structure of the fireproof valve is more reasonable, and the resistance of the fireproof cover 3 to airflow in the public flue can be reduced.

Furthermore, the fireproof cover 3 is provided with a telescopic device 4, the fireproof cover 3 is rotatably connected with the top of the air outlet pipeline 2 through a rotating shaft 32, the rotating shaft 32 is sleeved with a spring 33, one end of the spring 33 is fixed with the rotating shaft 32, the other end of the spring 33 is connected with one end of a high-temperature fuse part 31, and the other end of the high-temperature fuse part 31 is fixedly connected with the telescopic device 4;

the air outlet 21 is provided with a clamping groove corresponding to the position of the telescopic device 4; when the high-temperature fuse element 31 is disconnected, the expansion device 4 extends out of the fireproof cover 3 and is clamped into the clamping groove.

Under the normal use state of the fire-proof valve, the fire-proof cover 3 is in an open state, and the whole telescopic device 4 is positioned in the fire-proof cover 3 or positioned on the bottom surface of the fire-proof cover 3. When a fire disaster happens, the high-temperature fuse element 31 is disconnected, the spring 33 and the telescopic device 4 are released, the fireproof cover 3 covers the air outlet 21, the telescopic device 4 is clamped into the clamping groove due to enough downward power of the fireproof cover 3 under the force of the spring 33, and the spring 33 plays a role in propelling the fireproof cover 3. According to the invention, the lockable fireproof cover 3 is arranged at the air outlet 231, so that when a fire disaster happens, the fireproof cover 3 can seal the air outlet 21, smoke is prevented from entering a room, and the fire safety is improved.

The joint of the fireproof cover 3 and the rotating shaft 32 is further provided with an abutting sheet 34, and the abutting sheet abuts against the outer wall of the air outlet pipeline 2 and is used for limiting the opening degree of the fireproof cover 3.

Furthermore, the expansion device 4 comprises a latch 41 and a retractable spring 42, the fireproof cover 3 has a limiting portion, the tail end of the latch has a connecting rod, one end of the connecting rod is connected with the latch, the other end of the connecting rod passes through the limiting portion to be connected with the high-temperature fusing element 31, the retractable spring 42 is sleeved on the connecting rod, one end of the retractable spring 42 abuts against the tail end of the latch 41, and the other end of the retractable spring abuts against the limiting portion. The telescopic device 4 has simple structure and high reliability.

Furthermore, the clamping groove is formed by a turned edge at the top end of the air outlet pipeline 2, so that the structure of the fire damper is further simplified.

Furthermore, the air inlet pipeline 1 and the air outlet pipeline 2 are both made of metal materials, and the air inlet pipeline 1 and the air outlet pipeline 2 are integrally formed through a stretching process, so that the overall structure of the fire damper has high reliability. When the metal plate is formed through a stretching process, a metal plate cut according to a preset size is placed into a die, pressure is applied to the die to enable the metal plate to be formed, a gap is formed on one side, away from the air inlet pipeline 1, of the air outlet pipeline 2 after the metal plate is formed, and the gap is welded and fixed to obtain the body of the fire damper. The whole process steps are simple and easy to operate.

Furthermore, the air outlet pipeline 2 is provided with an extension section 22, the extension section 22 is positioned above the air inlet 11, and the extension section 22 and the air outlet pipeline 2 are integrally formed. The air outlet channel 2 is provided with an extension section, so that the length of the air outlet channel 2 is increased, a chimney effect is generated, and the speed of indoor flue gas emission is increased. The cross-sectional area of the air outlet pipeline 2 is gradually reduced from the right to the bottom to the top, and the chimney effect is further enhanced.

Furthermore, the bottom end surface 23 of the air outlet pipeline 2 is roughly hemispherical, and the joint of the air inlet pipeline 1 and the air outlet pipeline 2 is positioned above the bottom end surface 23. The bottom of the antiskid valve is approximately hemispherical, so that the resistance to smoke in the public flue is reduced to a great extent, and the smooth emission of the smoke is improved.

Further, the air inlet 11 is provided with a spring device 5 and a rotatable air inlet cover 6, one end of the spring device 5 is connected with one side of the air inlet cover 6, the other end of the spring device 5 is connected with the inner wall of the air inlet pipeline 1, the spring device 5 is positioned on one side of the air inlet cover 6 departing from the air outlet pipeline 2, and the air inlet cover 6 can be opened towards the air outlet pipeline 2. When the air inlet 1 has air pressure, the air inlet cover 6 is pushed, the air inlet 1 is opened, and when no air flow exists, the air inlet cover 6 is automatically closed under the action of the spring device 5.

The spring device 5 comprises a connecting rod 51, a fixed seat 52 and a switch spring 53, one end of the connecting rod 51 is rotatably connected with the air inlet cover 6, the other end of the connecting rod 51 is rotatably connected with the fixed seat 52, the switch spring 53 is arranged at the joint of the connecting rod 51 and the fixed seat 52, and the fixed seat 52 is fixed on the inner wall of the air inlet pipeline 1.

Furthermore, the opening degree of the air inlet cover 6 is 40-50 degrees. Preferably, the opening degree of the air inlet cover 6 is 45 degrees, and the air inlet cover has a good guiding effect on air flow.

Further, the shape of the air outlet 21 is circular, oval, semicircular, square or trapezoidal. The preferred outlet 21 is circular. The air inlet pipeline is cylindrical, the air inlet and the air inlet cover are both circular, and the air inlet cover can completely cover the air inlet.

The outside cover of intake stack is equipped with the mounting panel, makes things convenient for fire prevention valve's installation. The mounting plate is fixedly connected with the outer wall of the air inlet pipeline in a welding mode.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.