CN219774916U - Sealing structure of smoke exhaust fireproof valve - Google Patents
Sealing structure of smoke exhaust fireproof valve Download PDFInfo
- Publication number
- CN219774916U CN219774916U CN202320902454.2U CN202320902454U CN219774916U CN 219774916 U CN219774916 U CN 219774916U CN 202320902454 U CN202320902454 U CN 202320902454U CN 219774916 U CN219774916 U CN 219774916U
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- Prior art keywords
- sealing
- blade
- valve body
- pivot
- valve
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- 238000007789 sealing Methods 0.000 title claims abstract description 86
- 239000000779 smoke Substances 0.000 title claims abstract description 16
- 230000002265 prevention Effects 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims abstract 2
- 238000010168 coupling process Methods 0.000 claims abstract 2
- 238000005859 coupling reaction Methods 0.000 claims abstract 2
- 239000003517 fume Substances 0.000 claims abstract 2
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model belongs to the technical field of fire valves, and particularly relates to a sealing structure of a smoke exhaust fire valve. Provides a sealing structure of a smoke exhaust fireproof valve. The utility model provides a fire prevention valve seal structure discharges fume, including valve body, pivot, blade and seal structure etc. run through on the actuating mechanism and be equipped with the pivot, just the one end of pivot with the valve body rotation type is connected, pivot middle part rigid coupling has the blade that is used for sealing the valve body, actuating mechanism can control the pivot and rotate, so that the blade is closed, the blade with be equipped with on the inside wall of valve body and be used for right the gap between blade and the valve body carries out confined seal structure. When the blades are closed, the sealing strips arranged through the two groups of double-strip structures are clamped with the sealing grooves of the corresponding sealing blocks, so that an approximate annular sealing structure can be formed, the inner side and the outer side of a gap between the blades and the valve body are sealed at the same time, and the sealing effect of the fire-proof valve is improved.
Description
Technical Field
The utility model belongs to the technical field of fire valves, and particularly relates to a sealing structure of a smoke exhaust fire valve.
Background
The fire-proof valve is usually installed on the pipeline of ventilation and air-conditioning system with fire-fighting requirements, and is normally opened, when fire occurs, the temperature fuse automatically closes the valve quickly, and when the valve is pulled again, the valve is opened manually.
At present, because there is certain gap between the blade in current fire damper and the valve body after it is closed when using for fire damper leakproofness is relatively poor, makes thick smoke or flame can be followed and fled in these gaps when the conflagration breaks out, and then makes the sealed effect of fire damper reduce.
In view of the foregoing, it is highly desirable to improve the sealing structure of the smoke exhaust fire damper against the shortcomings of the prior art.
Disclosure of Invention
The utility model aims to overcome the defect that when the existing fire-proof valve is closed, a certain gap exists between a blade and a valve body, so that the sealing efficiency is reduced.
In order to solve the technical problems, the utility model provides a smoke exhaust fireproof valve sealing structure, which comprises a valve body, an actuating mechanism, a rotating shaft, a handle, blades, a tension spring and a temperature fuse, wherein the actuating mechanism is arranged on the outer side wall of the valve body, the rotating shaft is arranged on the actuating mechanism in a penetrating manner, one end of the rotating shaft is rotatably connected with the valve body, the handle is arranged at the upper end of the rotating shaft, the middle part of the rotating shaft is fixedly connected with the blades for sealing the valve body, the actuating mechanism can control the rotating shaft to rotate so as to enable the blades to be closed, the tension spring is hung on the eccentric position of the front side of the blades, the other end of the tension spring is hung on the inner wall of an air outlet of the valve body, the temperature fuse is arranged on the inner side wall of an air inlet of the valve body, the temperature fuse is electrically connected with the actuating mechanism, and the smoke exhaust fireproof valve sealing structure is further provided with a sealing structure for sealing a gap between the blades and the valve body.
Particularly preferably, the sealing structure comprises sealing blocks and sealing strips, the valve body is provided with two sealing blocks, one side corresponding to each sealing block is provided with a sealing groove, the edges of the front side and the rear side of each blade are provided with sealing strips matched with the sealing grooves, and after the blades are closed, the corresponding sealing blocks and sealing strips can be clamped with each other, so that gaps between the blades and the valve body are sealed.
Particularly preferred is that the handle further comprises a limiting mechanism for clamping the handle, the limiting mechanism comprises a bolt, an elastic piece and a positioning seat, the front side of the actuating mechanism is slidably inserted with the bolt through a connecting block, the elastic piece is connected between the middle part of the bolt and the connecting block, the end part of the handle is connected with the positioning seat matched with the bolt, and the bolt is inserted in the bolt positioning seat so as to limit the handle.
Particularly preferably, the blade further comprises protrusions, wherein the protrusions are equidistantly arranged on the surface of the blade.
It is particularly preferred that the sealing block and the sealing strip are both arranged in a semi-annular structure.
It is particularly preferred that the handle is provided for a collapsible structure.
It is particularly preferred that the elastic member is a compression spring.
Compared with the prior art, the utility model has the following beneficial effects:
1. when the blades are closed, the sealing strips arranged through the two groups of double-strip structures are clamped with the sealing grooves of the corresponding sealing blocks, so that an approximate annular sealing structure can be formed, the inner side and the outer side of a gap between the blades and the valve body are sealed at the same time, and the sealing effect of the fire-proof valve is improved.
2. Through pegging graft the bolt on the positioning seat of back handle is opened in the rotation, and then be favorable to playing the purpose that carries out spacingly to the handle, and then be favorable to improving the security of operation when opening the fire prevention valve and detecting.
Drawings
Fig. 1 is a perspective view of a first perspective view of the present utility model.
Fig. 2 is a schematic perspective view of a second perspective view of the present utility model.
Fig. 3 is a cross-sectional view of the present utility model.
Fig. 4 is a schematic diagram of the matching structure of the sealing block and the sealing strip of the utility model.
Fig. 5 is a schematic view of the mating structure of the sealing block and the sealing strip according to the present utility model from another perspective.
Fig. 6 is a schematic perspective view of the handle and the positioning seat according to the present utility model.
The marks in the drawings are: the device comprises a valve body 1, an actuating mechanism 2, a rotating shaft 3, a handle 30, a positioning seat 31, a blade 4, a protrusion 40, a tension spring 5, a sealing block 6, a sealing strip 60, a sealing groove 61, a limiting mechanism 7, a bolt 70, an elastic piece 71 and a temperature fuse 10.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Example 1
Referring to fig. 1-5, the sealing structure of the smoke exhaust fire-proof valve provided by the utility model comprises a valve body 1, an actuating mechanism 2, a rotating shaft 3, a handle 30, a blade 4, a tension spring 5, a temperature fuse 10 and a sealing structure, wherein the actuating mechanism 2 for controlling the blade 4 to be forcibly closed is arranged on the outer side wall of the valve body 1, the rotating shaft 3 is penetratingly arranged on the actuating mechanism 2, one end of the rotating shaft 3 is rotatably connected with the valve body 1, the handle 30 is arranged at the upper end of the rotating shaft 3, the handle 30 is in a foldable structure, the folded handle 30 is beneficial to saving occupied space, the blade 4 for sealing the valve body 1 is fixedly connected in the middle of the rotating shaft 3, the actuating mechanism 2 can control the rotating shaft 3 to rotate so as to enable the blade 4 to be closed, the tension spring 5 is hung on the eccentric position of the front side of the blade 4, the other end of the tension spring 5 is hung on the inner wall of the air outlet of the valve body 1, the blade 4 is kept in a tight state under the action of the tension force of the tension spring 5, when the blade 4 needs to be opened and reset, the closed blade 4 needs to be opened manually, the inner side wall of the air inlet of the valve body 1 is provided with the thermal fuse 10, the thermal fuse 10 is electrically connected with the actuating mechanism 2, when the thermal fuse 10 is fused, a signal is sent to the actuating mechanism 2, so that the actuating mechanism 2 can control the blade 4 to be forcedly closed, the aim of fire prevention is achieved, the blade 4 and the inner side wall of the valve body 1 are provided with sealing structures, and gaps between the blade 4 and the valve body 1 can be enhanced to be closed under the action of the sealing structures, and further is beneficial to improving the tightness of the fire-proof valve.
Further, referring to fig. 1-5, the sealing structure includes a sealing block 6 and a sealing strip 60, the valve body 1 is provided with two sealing blocks 6, a sealing groove 61 is provided on a corresponding side of the sealing block 6, sealing strips 60 adapted to the sealing groove 61 are provided on edges of front and rear sides of the vane 4, and the sealing block 6 and the sealing strip 60 are both in a semi-annular structure, so that an annular sealing structure is formed, and after the vane 4 is closed, the corresponding sealing block 6 and the sealing strip 60 can be clamped with each other, so that a gap between the vane 4 and the valve body 1 is sealed.
Further, as shown in fig. 2 and 5, the blade further includes protrusions 40, and the protrusions 40 are equidistantly disposed on the surface of the blade 4, which is beneficial to improving the structural strength of the blade 4.
In general, the blades 4 are controlled by the actuating mechanism 2 to keep an open state, which is favorable for ventilation and exhaust, and when the temperature fuse 10 is fused after a fire disaster occurs, the actuating mechanism 2 receives a corresponding signal and then controls the rotating shaft 3 to rotate so as to forcedly close the blades 4, thereby achieving the purpose of automatic fire prevention and avoiding the expansion of disaster areas caused by further diffusion of the disaster; when the blade 4 is forced to be closed, the sealing strips 60 on the blade are embedded into the sealing grooves 61 of the corresponding sealing blocks 6, and a staggered annular sealing structure can be formed under the matching action of the sealing strips 60 on the front side and the rear side and the sealing blocks 6, and the sealing strips 60 are arranged in a double-strip structure, so that the gap between the blade 4 and the valve body 1 can be sealed, and the sealing effect of the fire-proof valve can be improved.
Example 2
On the basis of embodiment 1, as shown in fig. 1, 2, 3 and 6, the safety device further comprises a limiting mechanism 7, the limiting mechanism 7 comprises a plug pin 70, an elastic piece 71 and a positioning seat 31, the front side of the actuating mechanism 2 is slidably inserted with the plug pin 70 through a connecting block, the elastic piece 71 is connected between the middle part of the plug pin 70 and the connecting block, the elastic piece 71 is a compression spring and is used for providing downward pulling force for the plug pin 70, so that the stability of limiting the handle 30 can be improved, the end part of the handle 30 is connected with the positioning seat 31 matched with the plug pin 70, and the plug pin 70 is inserted into the positioning seat 31 of the plug pin 70, so that the handle 30 is limited, and the safety during detection is further improved.
When needs manual open blade 4 or overhaul, can stretch out the handle 30 that can fold, only need shake handle 30 rotation, can make pivot 3 rotate and then drive blade 4 rotatory opening, when the positioning seat 31 on handle 30 rotates to the bolt 70 under, through pegging graft bolt 70 on the jack of positioning seat 31 and then can realize spacing handle 30, can avoid valve suddenly closing when overhaul, and then be favorable to improving the security when examining and measuring.
The foregoing examples have shown only the preferred embodiments of the utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that modifications, improvements and substitutions can be made by those skilled in the art without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (7)
1. The utility model provides a fire prevention valve seal structure discharges fume, includes valve body (1), actuating mechanism (2), pivot (3), handle (30), blade (4), extension spring (5) and temperature fuse (10), install actuating mechanism (2) on the lateral wall of valve body (1), run-through on actuating mechanism (2) are equipped with pivot (3), just the one end of pivot (3) with valve body (1) rotation type is connected, handle (30) are installed to the upper end of pivot (3), the middle part rigid coupling of pivot (3) has blade (4) that are used for carrying out sealedly to valve body (1), actuating mechanism (2) can control pivot (3) and rotate, so that blade (4) are closed, the eccentric position of blade (4) front side is gone up to articulate extension spring (5), the other end of extension spring (5) articulates on the inner wall of valve body (1) air exit, temperature fuse (10) are installed to the inside wall of valve body (1), just temperature fuse (10) with actuating mechanism (2) are sealed, still characterized by that seal structure, the sealing structure for sealing the gap between the blade (4) and the valve body (1) is arranged on the inner side wall of the blade (4) and the valve body (1).
2. The sealing structure of the smoke exhaust fireproof valve according to claim 1, wherein the sealing structure comprises sealing blocks (6) and sealing strips (60), the valve body (1) is provided with two sealing blocks (6), one side corresponding to the sealing blocks (6) is provided with sealing grooves (61), edges of the front side and the rear side of the blade (4) are provided with the sealing strips (60) matched with the sealing grooves (61), and after the blade (4) is closed, the corresponding sealing blocks (6) and the sealing strips (60) can be clamped with each other, so that gaps between the blade (4) and the valve body (1) are sealed.
3. The smoke exhaust fire prevention valve sealing structure according to claim 1, further comprising a limiting mechanism (7) for clamping the handle (30), wherein the limiting mechanism (7) comprises a plug pin (70), an elastic piece (71) and a positioning seat (31), the front side of the actuating mechanism (2) is slidably inserted with the plug pin (70) through a connecting block, the elastic piece (71) is connected between the middle part of the plug pin (70) and the connecting block, the end part of the handle (30) is connected with the positioning seat (31) matched with the plug pin (70), and the plug pin (70) is inserted into the positioning seat (31) of the plug pin (70) so as to limit the handle (30).
4. The sealing structure of the smoke evacuation fireproof valve according to claim 1, further comprising a protrusion (40), wherein the protrusions (40) are equidistantly arranged on the surface of the blade (4).
5. The sealing structure of the smoke evacuation fireproof valve according to claim 2, wherein the sealing block (6) and the sealing strip (60) are arranged in a semi-annular structure.
6. A smoke and fire damper seal according to claim 1, wherein said handle (30) is provided as a collapsible structure.
7. A smoke damper seal according to claim 3, wherein said resilient member (71) is a compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320902454.2U CN219774916U (en) | 2023-04-20 | 2023-04-20 | Sealing structure of smoke exhaust fireproof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320902454.2U CN219774916U (en) | 2023-04-20 | 2023-04-20 | Sealing structure of smoke exhaust fireproof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774916U true CN219774916U (en) | 2023-09-29 |
Family
ID=88136849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320902454.2U Active CN219774916U (en) | 2023-04-20 | 2023-04-20 | Sealing structure of smoke exhaust fireproof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774916U (en) |
-
2023
- 2023-04-20 CN CN202320902454.2U patent/CN219774916U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |