CN213236221U - Smoke-discharging fire-proof valve - Google Patents
Smoke-discharging fire-proof valve Download PDFInfo
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- CN213236221U CN213236221U CN202021714949.5U CN202021714949U CN213236221U CN 213236221 U CN213236221 U CN 213236221U CN 202021714949 U CN202021714949 U CN 202021714949U CN 213236221 U CN213236221 U CN 213236221U
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- sector gear
- main shaft
- valve blade
- valve
- frame body
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Abstract
The utility model relates to a fire-fighting equipment technical field, in particular to fire prevention valve discharges fume. Comprises a frame body, a valve blade, a transmission mechanism and an actuating mechanism; the valve blades are arranged at intervals and can be rotatably arranged in the frame body, and the valve blades can open or close the channels in the frame body under different rotating angles; the transmission mechanism is connected with each valve blade to enable each valve blade to rotate synchronously; the actuating mechanism comprises a main shaft, a circular gear, a sector gear, elastic components and an electromagnetic controller, and the actuating mechanism performs rotation limiting on the sector gear through two limiting rods of the electromagnetic controller, so that the main shaft has three rotation position states, mutual restriction of multiple groups of elastic components is avoided, and the reliability is high; the valve blade correspondingly has three position states, the structure is simplified, and the execution efficiency is high.
Description
Technical Field
The utility model relates to a fire-fighting equipment technical field, in particular to fire prevention valve discharges fume.
Background
Smoke exhaust and fire prevention valves are generally installed in smoke exhaust pipelines of high-rise buildings and underground facilities. The smoke exhaust fire prevention valve is in a closed state at ordinary times, when a fire disaster occurs, the fire disaster control center controls an actuating mechanism of the smoke exhaust fire prevention valve, the actuating mechanism opens a valve, and meanwhile, a smoke exhaust fan is started to exhaust smoke, so that time is provided for people in a building to evacuate. When the temperature of the exhaust smoke reaches 280 ℃, the actuating mechanism controls the valve to be closed, and open fire is prevented from spreading to other non-fire areas from the pipeline.
The actuating mechanism in the existing smoke exhaust fireproof valve is generally provided with two groups of springs, one group of springs performs opening action, the other group of springs performs closing action, and because the two groups of springs respectively act in opposite directions, the elastic force of the two groups of springs has certain mutual restriction action.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a smoke-discharging fire-proof valve.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a fire damper discharges fume which characterized in that: comprises a frame body, a valve blade, a transmission mechanism and an actuating mechanism;
the valve blades are arranged at intervals and can be rotatably arranged in the frame body, and the valve blades can open or close the channels in the frame body under different rotating angles;
the transmission mechanism is connected with each valve blade to enable each valve blade to rotate synchronously;
the actuating mechanism comprises a main shaft, a circular gear, a sector gear, an elastic part and an electromagnetic controller, wherein the main shaft is connected with a valve blade to drive the valve blade to rotate, the circular gear is fixedly sleeved on the main shaft and is meshed with the circular gear, the elastic part is connected with the sector gear and can pull the sector gear to rotate, a limit groove is formed in the sector gear, and the electromagnetic controller comprises a first limit rod and a second limit rod which can independently stretch out and draw back;
when the first limiting rod extends out, the sector gear can be limited to overcome the elasticity to be positioned at a first position, and the main shaft at the position corresponds to the valve blade and is in a state of closing the channel in the frame body; when the second limiting rod extends out, the second limiting rod extends into the limiting groove, when the first limiting rod contracts, the sector gear can rotate to a second position under the action of elastic force and is positioned by the second limiting rod, and the main shaft at the position rotates to a state of opening a channel in the frame body corresponding to the valve blade; after the second limiting rod is contracted, the sector gear can rotate to a third position under the action of elastic force, and the main shaft at the third position rotates to a state of closing the channel in the frame body corresponding to the valve blade.
Further, the valve blade comprises a rotating shaft, a plate body and sealing strips, wherein the plate body is provided with two sealing strips, one side of the plate body is connected with the rotating shaft, the other side of the plate body is provided with the sealing strips, and the sealing strips extend outwards relative to the side edges of the plate body.
Further, the necking down groove that runs through from top to bottom is seted up to the plate body side, the sealing strip is including inserting the strip, extending the board, the thickness that inserts the strip is greater than the thickness of extending the board, puts into the necking down inslot through inserting the strip and locates plate body one side with the sealing strip.
Furthermore, be equipped with the transmission case in the framework, valve blade's pivot extends into in the transmission case, actuating mechanism locates the transmission case top, and the main shaft extends into in the transmission case, the main shaft passes through the shaft coupling and is connected with a valve blade's pivot, drive mechanism locates in the transmission case, and drive mechanism includes a plurality of chains, a plurality of sprocket, the sprocket is located in valve blade's the pivot, and the chain is around locating two adjacent epaxial sprockets of commentaries on classics, makes each valve blade rotate in step.
Furthermore, the limiting groove on the sector gear is a long groove with radian, and the arc of the limiting groove is positioned on the rotating shaft of the sector gear.
Furthermore, the actuating mechanism also comprises a shell, and the main shaft, the circular gear, the sector gear, the elastic piece and the electromagnetic controller are arranged in the shell.
Furthermore, the bottom of the shell is provided with a through hole, a first bearing is arranged at the through hole, the main shaft is rotatably arranged in the through hole through the first bearing, and one end of the main shaft extends out of the shell from the through hole.
Furthermore, a fixed shaft is arranged in the fan-shaped gear, a second bearing is sleeved on the fixed shaft, and the fan-shaped gear is rotatably arranged on the fixed shaft through the second bearing.
Furthermore, a fixed rod is arranged in the shell, a pull rod is arranged on the sector gear, one end of the elastic piece is fixed on the fixed rod, and the other end of the elastic piece is fixed on the pull rod.
Furthermore, a cross beam is arranged in the shell, vertical sections extending upwards are arranged at two ends of the cross beam, the vertical sections and the inner wall of the shell are detachably connected through bolts, a supporting section extending upwards is arranged in the middle of the cross beam, a long hole is formed in the supporting section, and the electromagnetic controller can be arranged on the supporting section through the bolts and can be adjusted in the direction of the long hole.
From the above description of the present invention, compared with the prior art, the present invention provides a smoke exhaust fire damper, wherein the actuator is only provided with an elastic member, and the rotation of the sector gear is limited by two limiting rods of the electromagnetic controller, so that the main shaft has three rotation positions, thereby avoiding the mutual restriction of multiple sets of elastic members, and having high reliability; the valve blade correspondingly has three position states, the structure is simplified, and the execution efficiency is high.
Drawings
Fig. 1 is the utility model relates to a smoke exhaust fire damper structure sketch map.
Fig. 2 is a schematic view of the structure of the hidden frame body and the open state of the channel of the present invention.
Fig. 3 is a schematic view of the structure of the hidden frame body and the closed state of the channel of the present invention.
Fig. 4 is the schematic view of the local decomposition structure of the valve blade of the present invention.
Fig. 5 is a schematic structural diagram of the actuator of the present invention.
Fig. 6 is a schematic view of the exploded structure of the actuator of the present invention.
Fig. 7 is a schematic view of the housing mechanism of the actuator of the present invention.
Fig. 8 is a schematic view of a working state of the actuator according to the present invention.
Fig. 9 is a schematic view of the operating state of the actuator according to the present invention.
Fig. 10 is a third schematic view of the operating state of the actuator according to the present invention.
The labels in the figure correspond to the following: 1. the automatic transmission device comprises a frame body, 11. a transmission case, 2. a valve blade, 21. a rotating shaft, 22. a plate body, 221. a necking groove, 23. a sealing strip, 231. an insertion strip, 232. an extension plate, 3. a transmission mechanism, 31. a chain, 32. a chain wheel, 4. an actuating mechanism, 41. a shell, 411. a through hole, 412. a first bearing, 413. a fixed shaft, 414. a second bearing, 415. a fixed rod, 416. a cross beam, 4161. a vertical section, 4162. a supporting section, 4163. a long hole, 42. a main shaft, 421. a coupler, 43. a circular gear, 44. a sector gear, 441. a pull rod, 442. a limiting groove, 45. an elastic piece, 46. an electromagnetic controller, 461. a first limiting rod, 462. a second limiting rod.
Detailed Description
The present invention will be further described with reference to the following detailed description.
Referring to fig. 1 to 10, a smoke evacuation fire damper includes a frame 1, a valve blade 2, a transmission mechanism 3, and an actuator 4.
The valve blades 2 are arranged in a plurality, the valve blades 2 are arranged at intervals and rotatably arranged in the frame body 1, and the valve blades 2 can open or close the channels in the frame body 1 at different rotating angles; valve blade 2 includes pivot 21, plate body 22, sealing strip 23, plate body 22 is equipped with two, plate body 22 one side is connected with pivot 21, the opposite side is equipped with sealing strip 23, the relative plate body 22 side of sealing strip 23 outwards extends, the throat groove 221 that runs through from top to bottom is seted up to plate body 22 side, sealing strip 23 is including inserting strip 231, extend board 232, the thickness that inserts strip 231 is greater than the thickness that extends board 232, put into the throat groove 221 through inserting strip 231 and locate plate body 22 one side with sealing strip 23.
Be equipped with transmission case 11 on framework 1, the pivot 21 of valve blade 2 extends into in transmission case 11, actuating mechanism 4 locates transmission case 11 top, and main shaft 42 extends into transmission case 11 in, main shaft 42 passes through shaft coupling 421 and is connected with the pivot 21 of a valve blade 2, drive mechanism 3 locates in transmission case 11, drive mechanism 3 includes a plurality of chains 31, a plurality of sprocket 32, sprocket 32 is located on the pivot 21 of valve blade 2, chain 31 is around locating the sprocket 32 on two adjacent pivots 21, make each valve blade 2 synchronous rotation.
The actuating mechanism 4 comprises a shell 41, a main shaft 42, a circular gear 43, a sector gear 44, an elastic piece 45 and an electromagnetic controller 46, wherein the main shaft 42, the circular gear 43, the sector gear 44, the elastic piece 45 and the electromagnetic controller 46 are arranged in the shell 41; a through hole 411 is formed in the bottom of the housing 41, a first bearing 412 is arranged at the through hole 411, the main shaft 42 is rotatably arranged in the through hole 411 through the first bearing 412, one end of the main shaft 42 extends out of the housing 41 from the through hole 411, the main shaft 42 is connected with a valve blade 2 to drive the valve blade 2 to rotate, and the circular gear 43 is fixedly sleeved on the main shaft 42; a fixed shaft 413 is arranged in the shell 41, a second bearing 414 is sleeved on the fixed shaft 413, the sector gear 44 is rotatably arranged on the fixed shaft 413 through the second bearing 414, the sector gear 44 is meshed with the circular gear 43, a fixed rod 415 is arranged in the shell 41, a pull rod 441 is arranged on the sector gear 44, one end of the elastic element 45 is fixed on the fixed rod 415, the other end of the elastic element is fixed on the pull rod 441, the elastic element 45 can pull the sector gear 44 to rotate, a limit groove 442 is arranged on the sector gear 44, the limit groove 442 on the sector gear 44 is a long-shaped groove with radian, and the arc of the limit groove 442 is positioned on a rotating shaft of the sector gear 44; the casing 41 is internally provided with a cross beam 416, two ends of the cross beam 416 are provided with vertical sections 4161 extending upwards, the vertical sections 4161 are detachably connected with the inner wall of the casing 41 through bolts, the middle part 416 of the cross beam is provided with a supporting section 4162 extending upwards, the supporting section 4162 is provided with a long hole 4163, the electromagnetic controller 46 is arranged on the supporting section 4162 and can be adjusted along the direction of the long hole 4163 through bolts, and the electromagnetic controller 46 comprises a first limiting rod 461 and a second limiting rod 462 which can be independently stretched and retracted.
When the first position-limiting rod 461 extends out, the sector gear 44 can be limited to be positioned at a first position against the elastic force, and the main shaft 42 is in a state of closing the channel in the frame body 1 corresponding to the valve blade 2; when the second position-limiting rod 462 extends out, it extends into the position-limiting groove 442, and when the first position-limiting rod 461 contracts, the sector gear 44 can rotate to the second position under the action of elastic force and is positioned by the second position-limiting rod 462, and the main shaft 42 rotates to open the channel inside the frame 1 corresponding to the valve blade 2; after the second limiting rod 462 is retracted, the sector gear 44 can rotate to a third position under the action of the elastic force, and the main shaft 42 rotates to close the channel inside the frame 1 corresponding to the valve blade 2.
The working principle of the smoke-discharging fire-proof valve is as follows:
the normal state: the first and second position-limiting rods 461 and 462 of the electromagnetic controller 46 are in an extended state, and at this time, the sector gear 44 is in a first position where the elastic member 45 is in a fully stretched state, and due to the blocking of the first position-limiting rod 461, the sector gear 44 is held at the first position where the position of the main shaft 42 in this state corresponds to a state where the valve vane 2 is normally closed, and the seal strips 23 of the adjacent valve vanes 2 are partially laminated to close the gap between the plate bodies 22.
Smoke exhaust state in fire: the first position-limiting rod 461 of the electromagnetic controller 46 contracts, because the limitation of the first position-limiting rod 461 is lost, the sector gear 44 is pulled to rotate by the elastic force of the elastic member 45, because the position-limiting groove 442 is a long-shaped groove with a radian, a section of relative displacement can be carried out between the second position-limiting rod 462 and the position-limiting groove 442, the sector gear 44 will rotate until the second position-limiting rod 462 is clamped at one end of the position-limiting groove 442 and then stops, at this time, the elastic member 45 is not completely contracted and is in a half-stretched state, the sector gear 44 is in the second position, and the sector gear 44 rotates and drives the circular gear 43 to rotate, thereby driving the main shaft 42 to rotate and change the angle, the position of the main shaft 42 in this state corresponds to the smoke discharge opening state of the valve vanes 2 when a fire occurs, i.e., the main shaft 42 rotates and drives one valve vane 2 to rotate, and under the action of the transmission, to open the passage of the frame 1.
Closed state in fire: when the temperature of the smoke rises to 270 ℃, the smoke discharge is meaningless, and in order to avoid the spread of fire, a smoke discharge channel needs to be closed; the second limiting rod 462 of the electromagnetic controller 46 contracts, and due to the loss of the limitation of the second limiting rod 462, the elastic force of the elastic component 45 pulls the sector gear 44 to rotate again, the sector gear 44 rotates and drives the circular gear 43 to rotate at the same time, and further drives the main shaft 42 to rotate to change the angle, the position of the main shaft 42 in this state corresponds to the valve blade 2 to rotate to the resealed state, that is, the main shaft 42 drives one valve blade 2 to rotate again, and under the action of the transmission mechanism 3, each valve blade 2 rotates 90 degrees again synchronously to seal the channel of the frame body 1.
The above-mentioned only be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and all utilize this design right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (10)
1. The utility model provides a fire damper discharges fume which characterized in that: comprises a frame body, a valve blade, a transmission mechanism and an actuating mechanism;
the valve blades are arranged at intervals and can be rotatably arranged in the frame body, and the valve blades can open or close the channels in the frame body under different rotating angles;
the transmission mechanism is connected with each valve blade to enable each valve blade to rotate synchronously;
the actuating mechanism comprises a main shaft, a circular gear, a sector gear, an elastic part and an electromagnetic controller, wherein the main shaft is connected with a valve blade to drive the valve blade to rotate, the circular gear is fixedly sleeved on the main shaft and is meshed with the circular gear, the elastic part is connected with the sector gear and can pull the sector gear to rotate, a limit groove is formed in the sector gear, and the electromagnetic controller comprises a first limit rod and a second limit rod which can independently stretch out and draw back;
when the first limiting rod extends out, the sector gear can be limited to overcome the elasticity to be positioned at a first position, and the main shaft at the position corresponds to the valve blade and is in a state of closing the channel in the frame body; when the second limiting rod extends out, the second limiting rod extends into the limiting groove, when the first limiting rod contracts, the sector gear can rotate to a second position under the action of elastic force and is positioned by the second limiting rod, and the main shaft at the position rotates to a state of opening a channel in the frame body corresponding to the valve blade; after the second limiting rod is contracted, the sector gear can rotate to a third position under the action of elastic force, and the main shaft at the third position rotates to a state of closing the channel in the frame body corresponding to the valve blade.
2. A smoke evacuation fire damper as claimed in claim 1, wherein: the valve blade comprises a rotating shaft, a plate body and sealing strips, wherein the plate body is provided with two blocks, one side of the plate body is connected with the rotating shaft, the other side of the plate body is provided with the sealing strips, and the sealing strips extend outwards relative to the side edges of the plate body.
3. A smoke evacuation fire damper as claimed in claim 2, wherein: the necking down groove that runs through from top to bottom is seted up to the plate body side, the sealing strip is including inserting strip, extension board, the thickness that inserts the strip is greater than the thickness of extension board, puts into the necking down inslot through inserting the strip in order to locate plate body one side with the sealing strip.
4. A smoke evacuation fire damper as claimed in claim 2, wherein: the improved valve blade transmission device is characterized in that a transmission case is arranged on the frame body, a rotating shaft of the valve blade extends into the transmission case, the actuating mechanism is arranged above the transmission case, a main shaft extends into the transmission case, the main shaft is connected with the rotating shaft of the valve blade through a shaft coupling, the transmission mechanism is arranged in the transmission case and comprises a plurality of chains and a plurality of chain wheels, the chain wheels are arranged on the rotating shaft of the valve blade, and the chains are wound on the chain wheels arranged on two adjacent rotating shafts to enable the valve blades to rotate synchronously.
5. A smoke evacuation fire damper as claimed in claim 1, wherein: the limiting groove on the sector gear is a long groove with radian, and the arc of the limiting groove is positioned on the rotating shaft of the sector gear.
6. A smoke evacuation fire damper as claimed in claim 1, wherein: the actuating mechanism further comprises a shell, and the main shaft, the circular gear, the sector gear, the elastic piece and the electromagnetic controller are arranged in the shell.
7. A smoke evacuation fire damper as claimed in claim 6, wherein: the bottom of the shell is provided with a through hole, a first bearing is arranged at the through hole, the main shaft is rotatably arranged in the through hole through the first bearing, and one end of the main shaft extends out of the shell from the through hole.
8. A smoke evacuation fire damper as claimed in claim 6, wherein: a fixed shaft is arranged in the shell, a second bearing is sleeved on the fixed shaft, and the sector gear is rotatably arranged on the fixed shaft through the second bearing.
9. A smoke evacuation fire damper as claimed in claim 6, wherein: a fixed rod is arranged in the shell, a pull rod is arranged on the sector gear, one end of the elastic piece is fixed on the fixed rod, and the other end of the elastic piece is fixed on the pull rod.
10. A smoke evacuation fire damper as claimed in claim 6, wherein: the electromagnetic control device is characterized in that a cross beam is arranged in the shell, vertical sections extending upwards are arranged at two ends of the cross beam, the vertical sections and the inner wall of the shell are detachably connected through bolts, a supporting section extending upwards is arranged in the middle of the cross beam, a long hole is formed in the supporting section, and the electromagnetic control device can be arranged on the supporting section through the bolts and can be adjusted in the direction of the long hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021714949.5U CN213236221U (en) | 2020-08-17 | 2020-08-17 | Smoke-discharging fire-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021714949.5U CN213236221U (en) | 2020-08-17 | 2020-08-17 | Smoke-discharging fire-proof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213236221U true CN213236221U (en) | 2021-05-18 |
Family
ID=75895513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021714949.5U Active CN213236221U (en) | 2020-08-17 | 2020-08-17 | Smoke-discharging fire-proof valve |
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| Country | Link |
|---|---|
| CN (1) | CN213236221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117515174A (en) * | 2023-12-29 | 2024-02-06 | 山东金光集团有限公司 | Special airtight combination blast gate of subway |
-
2020
- 2020-08-17 CN CN202021714949.5U patent/CN213236221U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117515174A (en) * | 2023-12-29 | 2024-02-06 | 山东金光集团有限公司 | Special airtight combination blast gate of subway |
| CN117515174B (en) * | 2023-12-29 | 2024-03-26 | 山东金光集团有限公司 | Special airtight combination blast gate of subway |
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