CN220037563U - Normally-open fireproof smoke exhaust valve - Google Patents
Normally-open fireproof smoke exhaust valve Download PDFInfo
- Publication number
- CN220037563U CN220037563U CN202321419215.8U CN202321419215U CN220037563U CN 220037563 U CN220037563 U CN 220037563U CN 202321419215 U CN202321419215 U CN 202321419215U CN 220037563 U CN220037563 U CN 220037563U
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- China
- Prior art keywords
- smoke
- exhaust valve
- smoke exhaust
- wall
- normally closed
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- 239000000779 smoke Substances 0.000 title claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000000926 separation method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 8
- 239000003517 fume Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 244000309464 bull Species 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Air-Flow Control Members (AREA)
Abstract
The utility model provides a normally closed fireproof smoke exhaust valve, which relates to the technical field of fireproof equipment and comprises a smoke exhaust valve: the inner wall of the smoke exhaust valve is provided with a blocking mechanism, the blocking mechanism comprises a cylinder block embedded in the smoke exhaust valve, a plurality of cylinder blocks are arranged in the cylinder block, mounting grooves are formed in the cylinder blocks, and blocking rings are arranged on the inner walls of the mounting grooves. According to the utility model, the stability of the blocking mechanism when the hollow block is connected with the extension plate is ensured by the limiting mechanism, under the condition, the blocking plate can be well attached to the inner wall of the cylinder block, and when the oil smoke passes through the interior of the smoke exhaust valve, the blocking plate can isolate the oil smoke from the exterior of the cylinder block, so that the friction force of the rotating shaft can be reduced as much as possible after the oil smoke is not generated in the cylinder block, and the integral effect and the service performance of the smoke exhaust valve are ensured.
Description
Technical Field
The utility model relates to the technical field of fireproof equipment, in particular to a normally closed fireproof smoke exhaust valve.
Background
Fire and smoke evacuation valves are an important device used in building fire protection systems, and are typically installed in air handling systems inside buildings. The fire-proof and smoke-discharging valve is controlled by an electric or manual operation device, and has the characteristics of high temperature resistance, good sealing performance, corrosion resistance and the like according to the fire-proof requirement. In use, regular inspection and maintenance are required to ensure the normal operation and reliability of the fire-proof smoke-discharging valve, and the fire-proof smoke-discharging valve plays an important role in a fire-proof system of a building, can effectively reduce the damage of fire disaster to personnel and property, and is an important component of building safety protection.
However, in the prior art, the sealing plate is required to be used for sealing the pipeline of the valve in the using process of the fire-proof smoke exhaust valve, harmful gas is prevented from being discharged outwards, the sealing plate is generally driven by the rotating shaft, under the general condition, the rotating shaft can easily drive the sealing plate to rotate, the effect of sealing the pipeline is achieved, but when the smoke exhaust valve is installed in a place where smoke is large, such as a kitchen, the smoke exhaust valve is often in the valve, then under the condition, the smoke is easy to adhere to the inner wall of the valve, excessive smoke is accumulated at the connecting part of the rotating shaft and the inner wall of the smoke exhaust valve, so that the friction force of the rotating shaft is overlarge, and the smoke exhaust valve can not be completely sealed when the fire-proof smoke exhaust valve is required to be used, so that certain potential safety hazards appear.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a normally closed fireproof smoke discharging valve which is formed by accumulating smoke on the inner wall of the smoke discharging valve in a kitchen to cause overlarge friction force of a rotating shaft and possibly cause that the smoke discharging valve cannot be completely closed in use.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: normally closed fire prevention smoke damper includes smoke damper: the inner wall of the smoke exhaust valve is provided with a blocking mechanism, the blocking mechanism comprises a plurality of cylinder blocks embedded in the smoke exhaust valve, the cylinder blocks are provided with mounting grooves in the cylinder blocks, a plurality of blocking rings are arranged on the inner walls of the mounting grooves, an extension plate is fixedly arranged on the outer surface of each blocking ring, a plurality of extending plates are arranged on the inner walls of the cylinder blocks, a plurality of hollow blocks are arranged on the outer surfaces of the blocking rings, a sealing plate is arranged on the outer surfaces of the blocking rings, a rotating shaft is arranged on the inner walls of the smoke exhaust valve in a rotating mode, and a limiting mechanism is arranged on the inner walls of the cylinder blocks.
As a preferred implementation mode, the cylinder blocks are respectively embedded in the inner walls of two sides of the smoke exhaust valve, the installation positions of the two cylinder blocks are the same, two rotating shafts are arranged in total, rotating holes matched with the rotating shafts are formed in the outer surfaces of the two cylinder blocks, and the two rotating shafts penetrate through the rotating holes of the cylinder blocks and extend to the inside of the smoke exhaust valve.
As a preferred implementation mode, the outer surfaces of the hollow blocks are provided with limiting grooves matched with the extending plates, and the outer surfaces of the extending plates are attached to the inner walls of the limiting grooves.
As a preferable implementation mode, round holes matched with the rotating shafts are formed in the outer surfaces of the plurality of baffle plates, the inner walls of the round holes are attached to the outer surfaces of the baffle plates, and the outer surfaces of the baffle plates are attached to the inner walls of the cylinder blocks.
As a preferred embodiment, the limiting mechanism comprises a rotating rod rotatably arranged in the cylinder block, and a support plate is fixedly arranged at one end of the rotating rod away from the cylinder block.
As a preferred embodiment, the outer surface of the rotating rod is fixedly provided with a connecting plate, and the outer surface of the connecting plate is fixedly provided with a torsion spring.
As a preferred implementation mode, one end of the torsion spring is fixedly connected with the outer surface of the connecting plate, the other end of the torsion spring is fixedly connected with the inner wall of the cylinder block, and the outer surface of the support plate is attached to the outer surface of the hollow block.
Compared with the prior art, the utility model has the advantages and positive effects that:
the utility model comprises the following steps: firstly, set up stop gear in the middle of the inner wall of drum piece, stop gear's effect is spacing to the connecting plate through the torsional spring, and the connecting plate sets up on the bull stick again, the bull stick will drive the extension board and laminate with the surface of hollow piece all the time under the circumstances that the torsional spring does not receive external force, then under this kind of circumstances, the extension board that sets up in the middle of the hollow piece inner wall will be in spacing state always because the extension board is laminated with the surface of hollow piece all the time, stability when hollow piece and extension board are connected in the separation mechanism has been guaranteed through stop gear, under this kind of circumstances, the baffle can laminate well in the inner wall of drum piece, when the fume is inside through the fume extraction valve, the baffle can be with the outside of fume at drum piece, the frictional force of reduction pivot as far as possible after having not having guaranteed in the drum piece, through the inclusion to the pivot, reduce the influence of fume to the pivot, thereby reduce the possibility that the valve can appear because pivot frictional force increase and unable complete closure.
Drawings
Fig. 1 is a schematic perspective view of a normally closed fire-proof smoke exhaust valve according to the present utility model.
Fig. 2 is a schematic diagram of the inner wall structure of the normally closed fire-proof smoke-discharging valve provided by the utility model.
Fig. 3 is a schematic diagram of a blocking structure of the normally closed fire-proof smoke exhaust valve provided by the utility model.
Fig. 4 is a schematic diagram of a limit structure of a normally closed fire-proof smoke-discharging valve according to the present utility model
Legend description:
1. a smoke exhaust valve; 2. a blocking mechanism;
201. a cylindrical block; 202. a rotating shaft; 203. a baffle plate; 204. an extension plate; 205. a hollow block; 206. a closing plate; 207. a limiting mechanism;
2071. a connecting plate; 2072. a torsion spring; 2073. a support plate; 2074. and (5) rotating the rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1-4, the present utility model provides a technical solution: normally closed fire prevention smoke damper includes smoke damper 1: the inner wall of smoke evacuation valve 1 is provided with separation mechanism 2, separation mechanism 2 is including inlaying the drum piece 201 of establishing in smoke evacuation valve 1 inside, drum piece 201 is provided with a plurality ofly altogether, the mounting groove has all been seted up to the inside of a plurality of drum pieces 201, and the inner wall of a plurality of mounting grooves is provided with baffle 203, the surface fixed mounting of a plurality of baffle 203 has extension board 204, the extension board 204 is provided with a plurality of altogether, the inner wall of drum piece 201 is provided with a plurality of hollow pieces 205, the surface of baffle 203 is provided with closing plate 206, the inner wall of smoke evacuation valve 1 rotates and installs pivot 202, the inner wall of drum piece 201 is provided with stop mechanism 207, drum piece 201 inlays respectively and locates the both sides inner wall of smoke evacuation valve 1, the mounted position of two drum pieces 201 is the same, pivot 202 is provided with two altogether, the pivot 202 runs through the inside of smoke evacuation valve 1 to the pivot 202 looks adaptation, the spacing recess with extension board 204 looks adaptation is all seted up to the surface of a plurality of hollow pieces 205, the surface of extension board 204 looks recess looks and the inner wall of baffle 203 looks of the inner wall of a plurality of baffle 203 looks laminating with the round hole of baffle 203, the surface of the looks of baffle 203 looks of laminating of the baffle that looks is just laminating with the round hole of the inner wall of baffle 203.
In this embodiment, firstly, the cylindrical block 201 is disposed in the inner wall of the smoke exhaust valve 1, the rotating shaft 202 is installed by penetrating through the cylindrical block 201, meanwhile, in the cylindrical block 201, the baffle 203 is installed through the extension plate 204, the hollow block 205 and the limiting mechanism 207, and the baffle 203 can isolate the smoke from the cylindrical block 201, so that it is ensured that the friction force of the rotating shaft 202 can be reduced as much as possible after no smoke is generated in the cylindrical block 201.
Example 2
As shown in fig. 1-4, the limiting mechanism 207 comprises a rotating rod 2074 rotatably installed in the cylinder block 201, a supporting plate 2073 is fixedly installed at one end of the rotating rod 2074 far away from the cylinder block 201, a connecting plate 2071 is fixedly installed at the outer surface of the rotating rod 2074, a torsion spring 2072 is fixedly installed at the outer surface of the connecting plate 2071, one end of the torsion spring 2072 is fixedly connected with the outer surface of the connecting plate 2071, the other end of the torsion spring 2072 is fixedly connected with the inner wall of the cylinder block 201, and the outer surface of the supporting plate 2073 is attached to the outer surface of the hollow block 205.
In this embodiment, the torsion spring 2072 limits the connection plate 2071, and the connection plate 2071 is further disposed on the rotation rod 2074, and the rotation rod 2074 will drive the support plate 2073 to be always attached to the outer surface of the hollow block 205 under the condition that the torsion spring 2072 is not subjected to external force, so that the extension plate 204 disposed in the inner wall of the hollow block 205 will be always in a limited state because the support plate 2073 is always attached to the outer surface of the hollow block 205.
Working principle:
as shown in fig. 1-4, first, the limiting mechanism 207 is disposed in the inner wall of the cylinder block 201, the limiting mechanism 207 is used to limit the connecting plate 2071 through the torsion spring 2072, the connecting plate 2071 is disposed on the rotating rod 2074, the rotating rod 2074 will drive the support plate 2073 to be always attached to the outer surface of the hollow block 205 under the condition that the torsion spring 2072 is not subjected to external force, then in this condition, the extending plate 204 disposed in the inner wall of the hollow block 205 is always in a limited state because the support plate 2073 is always attached to the outer surface of the hollow block 205, then the stability of the connecting between the hollow block 205 and the extending plate 204 in the blocking mechanism 2 is ensured by the limiting mechanism 207, in this case, the blocking plate 203 can be well attached to the inner wall of the cylinder block 201, and when the fume passes through the inside of the fume exhaust valve 1, the blocking plate 203 can isolate the fume from the outside of the cylinder block 201, so that the friction force of the rotating shaft 202 can be reduced as much as possible after the fume is not generated in the cylinder block 201.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (7)
1. The normally closed fireproof smoke exhaust valve is characterized by comprising a smoke exhaust valve (1): the inner wall of smoke evacuation valve (1) is provided with separation mechanism (2), separation mechanism (2) are including inlaying and establish at inside drum piece (201) of smoke evacuation valve (1), drum piece (201) are provided with a plurality ofly altogether, a plurality of mounting groove has all been seted up to the inside of drum piece (201), and the inner wall of a plurality of mounting grooves is provided with baffle (203), a plurality of surface fixed mounting of baffle (203) has extension board (204), extension board (204) are provided with a plurality ofly altogether, the inner wall of drum piece (201) is provided with a plurality of hollow pieces (205), the surface of baffle (203) is provided with closing plate (206), pivot (202) are installed in the inner wall rotation of smoke evacuation valve (1), the inner wall of drum piece (201) is provided with stop gear (207).
2. The normally closed fire and smoke damper according to claim 1, wherein: the cylinder blocks (201) are respectively embedded into the inner walls of two sides of the smoke exhaust valve (1), the installation positions of the two cylinder blocks (201) are the same, two rotating shafts (202) are arranged in total, rotating holes matched with the rotating shafts (202) are formed in the outer surfaces of the two cylinder blocks (201), and the two rotating shafts (202) penetrate through the rotating holes of the cylinder blocks (201) and extend to the inside of the smoke exhaust valve (1).
3. The normally closed fire and smoke damper according to claim 2, wherein: limiting grooves matched with the extending plates (204) are formed in the outer surfaces of the hollow blocks (205), and the outer surfaces of the extending plates (204) are attached to the inner walls of the limiting grooves.
4. The normally closed fire and smoke damper according to claim 1, wherein: round holes matched with the rotating shafts (202) are formed in the outer surfaces of the plurality of baffle plates (203), the inner walls of the round holes are attached to the outer surfaces of the baffle plates (203), and the outer surfaces of the baffle plates (203) are attached to the inner walls of the cylinder blocks (201).
5. The normally closed fire and smoke damper according to claim 1, wherein: the limiting mechanism (207) comprises a rotating rod (2074) rotatably installed inside the cylinder block (201), and a supporting plate (2073) is fixedly installed at one end, far away from the cylinder block (201), of the rotating rod (2074).
6. The normally closed fire and smoke damper according to claim 5, wherein: the outer surface of the rotating rod (2074) is fixedly provided with a connecting plate (2071), and the outer surface of the connecting plate (2071) is fixedly provided with a torsion spring (2072).
7. The normally closed fire and smoke damper according to claim 6, wherein: one end of the torsion spring (2072) is fixedly connected with the outer surface of the connecting plate (2071), the other end of the torsion spring (2072) is fixedly connected with the inner wall of the cylinder block (201), and the outer surface of the support plate (2073) is attached to the outer surface of the hollow block (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321419215.8U CN220037563U (en) | 2023-06-06 | 2023-06-06 | Normally-open fireproof smoke exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321419215.8U CN220037563U (en) | 2023-06-06 | 2023-06-06 | Normally-open fireproof smoke exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220037563U true CN220037563U (en) | 2023-11-17 |
Family
ID=88725000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321419215.8U Active CN220037563U (en) | 2023-06-06 | 2023-06-06 | Normally-open fireproof smoke exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220037563U (en) |
-
2023
- 2023-06-06 CN CN202321419215.8U patent/CN220037563U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |