CN111911644A - Cylindrical rotary opening fire-fighting fire-proof valve - Google Patents
Cylindrical rotary opening fire-fighting fire-proof valve Download PDFInfo
- Publication number
- CN111911644A CN111911644A CN202010779053.3A CN202010779053A CN111911644A CN 111911644 A CN111911644 A CN 111911644A CN 202010779053 A CN202010779053 A CN 202010779053A CN 111911644 A CN111911644 A CN 111911644A
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- baffle
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- rotating shaft
- fire
- rotary
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- 238000007789 sealing Methods 0.000 claims abstract description 88
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000002265 prevention Effects 0.000 claims description 13
- 239000007769 metal material Substances 0.000 claims description 6
- 229910052755 nonmetal Inorganic materials 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 11
- 239000000779 smoke Substances 0.000 abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 15
- 239000003546 flue gas Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 8
- 230000006378 damage Effects 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 4
- 230000009970 fire resistant effect Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention belongs to the technical field of fire-fighting and fire-fighting equipment, and particularly relates to a cylindrical rotary opening fire-fighting and fire-fighting valve which comprises a valve body, a first supporting rod, a second supporting rod, a first rotary baffle, a second rotary baffle, a third rotary baffle, a sealing limiting plate, a rotating shaft, a motor and a transmission part, wherein the first supporting rod is connected with the first rotary baffle; the motor drives the rotating shaft to rotate, so that the second rotating baffle and the third rotating baffle are driven to rotate, the first limiting pin is driven to rotate by the rotating shaft in the process, the second limiting pin is driven to rotate by the first limiting pin through the spring, the second limiting pin drives the second rotating baffle to rotate, when one side of the third rotating baffle is inserted into the first groove in the sealing limiting plate, the fire valve is closed, high-temperature smoke is prevented from entering a pipeline, the high-temperature smoke is prevented from entering other rooms through the pipeline, fire in other rooms is avoided, a fire area is isolated, spreading of fire is avoided, and loss of personal and property caused by the fire is reduced.
Description
Technical Field
The invention belongs to the technical field of fire-fighting and fire-preventing equipment, and particularly relates to a cylindrical rotary opening fire-fighting and fire-preventing valve.
Background
The fire damper is a movable sealing device which can meet the requirements of fire-resistant stability and fire-resistant integrity within a certain period of time and is used for smoke insulation and fire retardation in ventilation and air conditioning pipelines. When a fire breaks out in a building with a ventilation and air conditioning system, vertical and horizontal air ducts penetrating through a floor slab and a wall body are the main ways for fire spreading. The fire-proof valve is installed on the air supply and return pipes of the ventilation and air-conditioning system, is in an open state at ordinary times, is closed when the temperature of gas in the pipeline reaches a set temperature in case of fire, can meet the requirements of fire-resistant stability and fire-resistant integrity within a certain time, and plays a role in smoke isolation and fire retardation.
The pressure bearing capacity of the cylindrical fire valve far exceeds that of the rectangular fire valve, so that when a pipeline passes through a ventilation and air conditioning machine room and a partition wall and a floor slab of an important or more dangerous room with fire, the cylindrical fire valve is selected to load the valve body into the reserved hole, the partition wall and the floor slab can be better supported, and the fire valve is closed mostly in a mode that one or more valve plates are driven to rotate to a parallel and level state through a rotating shaft on the inner surface of the valve body, so that the tightness between the valve plates and the valve body is not good.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a cylindrical rotary opening fire-fighting valve. The invention is mainly used for solving the problem of poor sealing effect caused by the closing mode of the existing fire-fighting fire-proof valve.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention provides a cylindrical rotary opening fire-fighting valve which comprises a valve body, a first supporting rod, a second supporting rod, a first rotary baffle, a second rotary baffle, a third rotary baffle, a sealing limiting plate, a rotating shaft, a motor and a transmission part, wherein the first rotary baffle is arranged on the valve body; the inner surface of the valve body is cylindrical; the first supporting rod is arranged in the valve body; two ends of the first supporting rod are fixedly connected to the inner surface of the valve body; the first rotary baffle is arranged on one side, close to the first supporting rod, in the valve body; one end of the first rotary baffle is fixedly connected to the inner surface of the valve body; the middle part of the first rotating baffle is rotatably connected with the rotating shaft; one end of the rotating shaft is rotatably connected to the first supporting rod; the third rotating baffle is arranged on one side, away from the first supporting rod, of the first rotating baffle; the third rotary baffle is fixedly connected to the rotating shaft; one side of the first rotating baffle is provided with the sealing limit plate; one end of the sealing limit plate is fixedly connected to the first rotating baffle; the other end of the sealing limit plate is provided with a first groove; when the fire damper is closed, one side of the third rotary baffle is inserted into the first groove; the second rotating baffle is arranged between the first rotating baffle and the third rotating baffle; the second rotating baffle is connected with the rotating shaft through the transmission part; the second support rod is arranged at the other end of the rotating shaft; the second support rod is fixedly connected to the inner surface of the valve body; the second support rod is fixedly connected with a mounting seat of the motor, and a rotating shaft of the motor penetrates through the second support rod to be connected with the rotating shaft; wherein,
the transmission part comprises a spring, a first limiting pin and a second limiting pin; the inner part of the joint of the second rotating baffle and the rotating shaft is an annular cavity; the second rotating baffle is provided with an avoidance hole and a first mounting hole along the radial direction corresponding to the annular cavity; a second mounting hole is formed in the position, corresponding to the annular cavity, of the rotating shaft; the first limiting pin penetrates through the avoidance hole and is fixedly connected into the second mounting hole; the second limiting pin is fixedly connected in the first mounting hole; two springs are arranged in the annular cavity of the second rotary baffle; one end of the spring is in contact with the first limiting pin; the other end of the spring is in contact with the second limiting pin.
When the fire-fighting device works, the motor drives the rotating shaft to rotate so as to drive the second rotating baffle and the third rotating baffle to rotate, the first limiting pin drives the second limiting pin to rotate through the spring, the second limiting pin drives the second rotating baffle to rotate, one edge of the third rotating baffle is inserted into the first groove on the sealing limiting plate, the third rotating baffle is prevented from continuing to rotate by the sealing limiting plate, the third rotating baffle is stopped to rotate, the rotating shaft is stopped to rotate, the second rotating baffle is stopped, the fire-fighting valve is closed, high-temperature smoke is prevented from entering other rooms through the pipeline, thereby reducing the loss of the fire to the human body and the property.
Preferably, a first bulge is arranged on one side, close to the second rotary baffle, of the third rotary baffle; a second groove is formed in the other side of the third rotary baffle; a third groove is formed in the first groove on the sealing limiting plate corresponding to the first bulge; a second bulge is arranged in the first groove on the sealing limit plate corresponding to the second groove; a torque limiter is arranged between the rotating shaft and the rotating shaft of the motor; one end of the torsion limiter is connected with the rotating shaft; the other end of the torque limiter is fixedly connected to a rotating shaft of the motor; a fan is arranged between the torque limiter and the second support rod; the fan is fixedly connected to the rotating shaft of the motor.
When the motor works, because the indoor temperature of a fire disaster is high, the temperatures of the rotating shaft, the first rotating baffle, the second rotating baffle and the third rotating baffle are rapidly increased, and then high temperature is transmitted to the motor through the rotating shaft, so that the working temperature of the motor is increased, and further the motor which is working is damaged; after one side of the third rotating baffle is inserted into the first groove on the sealing limiting plate, the sealing limiting plate blocks the third rotating baffle from continuing to rotate, so that the rotating shaft is required to stop rotating, and further, a torsion limiter is arranged between the rotating shaft and the motor, so that when the torsion value between the rotating shaft and the rotating shaft of the motor exceeds the torsion value set by the torsion limiter, the torsion limiter slips, the rotating shaft is disconnected from the rotating shaft of the motor, and the fan continues to rotate; because again because the protruding No. two recess cooperations on a protruding and the sealed limiting plate on No. three rotating barrier, No. three recess on No. three rotating barrier and the protruding cooperation of No. two on the sealed limiting plate on No. three rotating barrier, and then avoided the fire prevention valve to close the back, because become between the pivot of axis of rotation and motor and rotate and be connected, and then avoid No. three rotating barrier to break away from the recess on the sealed limiting plate under the effect of gravity, and then avoid the fire prevention valve of closing originally to open automatically, and then guarantee that the fire prevention valve can effectual separation firework.
Preferably, L-shaped sealing bosses are arranged between the first rotating baffle and the second rotating baffle and between the second rotating baffle and the third rotating baffle; the side surface of the L-shaped sealing boss is provided with an inclined surface; and the two L-shaped bosses which are close to each other are sealed by the inclined surface.
When the fireproof valve is in work, the two L-shaped sealing bosses which are close to each other are matched with each other, so that the first rotating baffle plate is used for limiting the second rotating baffle plate, the second rotating baffle plate is used for limiting the third rotating baffle plate, and the first rotating baffle plate and the second rotating baffle plate, and the second rotating baffle plate and the third rotating baffle plate are always in contact with each other when the fireproof valve is closed; because the lateral wall of the L-shaped sealing boss is set to be the inclined plane, the situation that the L-shaped sealing bosses which are close to each other are changed into point or line contact due to surface contact caused by machining or assembly errors is prevented, the situation that the inclined planes of the L-shaped sealing bosses which are close to each other are always in surface contact in the process of closing the fire damper is guaranteed, the sealing of the two L-shaped sealing bosses which are close to each other is achieved, and the sealing between the first rotating baffle and the second rotating baffle as well as the sealing between the second rotating baffle and the third rotating baffle is achieved.
Preferably, a first rotating groove is formed in the inner surface of the valve body corresponding to the rotating track of the second rotating baffle; a second rotary groove is formed in the inner surface of the valve body corresponding to the rotary track of the third rotary baffle; a step surface is formed between the first rotary groove and the second rotary groove; the step surface is used for sealing the second rotating baffle.
When the fire-proof valve is in operation, the second rotary baffle plate slides in the first rotary groove, the third rotary baffle plate slides in the second rotary groove, after the fire-proof valve is closed, the high-temperature flue gas passes through the side gap between the second rotary baffle and the first groove and the end surface gap between the second rotary baffle and the first groove, meanwhile, the high-temperature flue gas passes through the side gap between the third rotary baffle and the second groove and also passes through the end surface gap between the third rotary baffle and the second groove, so that the high-temperature flue gas can enter the pipeline, the path of the high-temperature flue gas entering the pipeline is increased, thereby improving the sealing between the second rotary baffle plate and the third rotary baffle plate and the valve body, further improving the sealing effect of the fire damper, and then prevent that the flue gas from leading into other indoor, and then avoided causing the injury to other indoor personnel.
Preferably, the sealing limit plate is made by bending an elastic metal plate; the inside of the sealing limit plate is of a hollow structure.
When the sealing limiting plate works, the sealing limiting plate is made by bending the elastic metal plate and is hollow inside, so that when the third rotating baffle is inserted into the first groove on the sealing limiting plate, the inner wall of the first groove is deformed, and the smooth insertion and locking between the first bulge on the third rotating baffle and the second groove on the sealing limiting plate, and between the third groove on the third rotating baffle and the second bulge on the sealing limiting plate are facilitated; when No. three whirl baffle striking sealed limiting plate simultaneously, because sealed limiting plate has the cushioning effect, and then prevent that No. three whirl baffle from taking place to warp, and then prevent that No. three whirl baffle card from dying in No. two rotatory recesses, and then guarantee smooth opening behind the conflagration suppression back fire damper, and then guarantee the indoor ventilation of conflagration suppression back.
Preferably, the rotating shaft is connected with the torque limiter through a connecting shaft; the connecting shaft is made of a non-metal material with poor heat conductivity; one end of the connecting shaft is fixedly connected to the rotating shaft; the other end of the connecting shaft is fixedly connected to the torque limiter.
When the torsion limiter works, the connecting shaft is arranged between the torsion limiter and the rotating shaft, and the connecting shaft is made of a non-metal material with poor heat conductivity, so that high-temperature heat is prevented from being directly transmitted to the torsion limiter, the temperature of the torsion limiter is prevented from being rapidly increased, the damage to the torsion limiter caused by the temperature increase is avoided, and the service life of the torsion limiter is prolonged; meanwhile, high-temperature heat is prevented from being rapidly transmitted to the motor, the motor is prevented from being burnt due to overhigh temperature, and the motor can be ensured to work continuously.
The invention has the following beneficial effects:
1. in the invention, when a fire disaster occurs indoors, the motor drives the rotating shaft to rotate, so as to drive the second rotating baffle and the third rotating baffle to rotate, in the process, the rotating shaft drives the first limiting pin to rotate, further the first limiting pin drives the second limiting pin to rotate through the spring, further the second limiting pin drives the second rotating baffle to rotate, when one edge of the third rotating baffle is inserted into the first groove on the sealing limiting plate, further the sealing limiting plate blocks the third rotating baffle from continuing to rotate, further the third rotating baffle stops rotating, further the rotating shaft stops rotating, further the second rotating baffle stops rotating, further the fire prevention valve is closed, further high-temperature smoke is blocked from entering a pipeline, further the high-temperature smoke is prevented from entering other rooms through the pipeline, further the fire disaster in other rooms is avoided, further the fire disaster area is isolated, and further the spread of the fire disaster is avoided, thereby reducing the loss of the fire to the human body and the property.
2. In the invention, because the indoor temperature of a fire disaster is higher, the temperature of the rotating shaft, the first rotating baffle, the second rotating baffle and the third rotating baffle is rapidly raised, and then high temperature is transmitted to the motor through the rotating shaft, so that the working temperature of the motor is raised, further the motor in work is damaged, and in order to prolong the service life of the motor, the fan is arranged on the rotating shaft of the motor, and then the motor rotates to drive the fan to rotate, and further the fan rotates to enable air in the valve to flow through, so that the heat dissipation of the motor is realized, and further the service life of the motor in continuous operation is prolonged; after one side of the third rotating baffle is inserted into the first groove on the sealing limiting plate, the sealing limiting plate blocks the third rotating baffle from continuing to rotate, so that the rotating shaft is required to stop rotating, and further, a torsion limiter is arranged between the rotating shaft and the motor, so that when the torsion value between the rotating shaft and the rotating shaft of the motor exceeds the torsion value set by the torsion limiter, the torsion limiter slips, the rotating shaft is disconnected from the rotating shaft of the motor, and the fan continues to rotate; because again because the protruding No. two recess cooperations on a protruding and the sealed limiting plate on No. three rotating barrier, No. three recess on No. three rotating barrier and the protruding cooperation of No. two on the sealed limiting plate on No. three rotating barrier, and then avoided the fire prevention valve to close the back, because become between the pivot of axis of rotation and motor and rotate and be connected, and then avoid No. three rotating barrier to break away from the recess on the sealed limiting plate under the effect of gravity, and then avoid the fire prevention valve of closing originally to open automatically, and then guarantee that the fire prevention valve can effectual separation firework.
3. According to the invention, the two L-shaped sealing bosses which are close to each other are mutually matched, so that the first rotary baffle plate limits the second rotary baffle plate and the second rotary baffle plate limits the third rotary baffle plate in the process of closing the fire damper, and the first rotary baffle plate and the second rotary baffle plate and the third rotary baffle plate are always in contact with each other when the fire damper is closed; because the lateral wall of the L-shaped sealing boss is set to be the inclined plane, the situation that the L-shaped sealing bosses which are close to each other are changed into point or line contact due to surface contact caused by machining or assembly errors is prevented, the situation that the inclined planes of the L-shaped sealing bosses which are close to each other are always in surface contact in the process of closing the fire damper is guaranteed, the sealing of the two L-shaped sealing bosses which are close to each other is achieved, and the sealing between the first rotating baffle and the second rotating baffle as well as the sealing between the second rotating baffle and the third rotating baffle is achieved.
4. In the process of closing the fire damper, the second rotary baffle plate slides in the first rotary groove, the third rotary baffle plate slides in the second rotary groove, after the fire-proof valve is closed, the high-temperature flue gas passes through the side gap between the second rotary baffle and the first groove and the end surface gap between the second rotary baffle and the first groove, meanwhile, the high-temperature flue gas passes through the side gap between the third rotary baffle and the second groove and also passes through the end surface gap between the third rotary baffle and the second groove, so that the high-temperature flue gas can enter the pipeline, the path of the high-temperature flue gas entering the pipeline is increased, thereby improving the sealing between the second rotary baffle plate and the third rotary baffle plate and the valve body, further improving the sealing effect of the fire damper, and then prevent that the flue gas from leading into other indoor, and then avoided causing the injury to other indoor personnel.
5. According to the invention, the connecting shaft is arranged between the torque limiter and the rotating shaft, and is made of a non-metal material with poor heat conductivity, so that high-temperature heat is prevented from being directly transmitted to the torque limiter, the temperature of the torque limiter is prevented from being rapidly increased, the damage to the torque limiter due to the temperature increase is avoided, and the service life of the torque limiter is prolonged; meanwhile, high-temperature heat is prevented from being rapidly transmitted to the motor, the motor is prevented from being burnt due to overhigh temperature, and the motor can be ensured to work continuously.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic view of the overall structure of the fire-fighting fire damper of the present invention;
FIG. 2 is a front view of the fire protection valve of the present invention;
FIG. 3 is a schematic view showing the internal structure of a transmission member according to the present invention;
FIG. 4 is a schematic structural diagram of a sealing and limiting plate in the invention;
FIG. 5 is a schematic view of the fire-fighting valve of the present invention in a normally open state;
FIG. 6 is a schematic view of the L-shaped sealing bosses of the present invention cooperating with each other;
FIG. 7 is a schematic view of the structure inside the valve body after the fire-fighting fire damper is closed according to the present invention;
FIG. 8 is a schematic structural view of a first rotary groove and a second rotary groove of the present invention;
FIG. 9 is a schematic structural view of a second rotating-selecting baffle in the first rotating groove;
in the figure: the valve body 1, a support rod 11, a support rod 12, a rotary groove 13, a rotary groove 14, a step surface 15, a rotary baffle 2, an L-shaped sealing boss 21, an inclined surface 22, a rotary baffle 3, an avoiding hole 31, a rotary baffle 4, a protrusion 41, a groove 42, a sealing limiting plate 5, a groove 51, a groove 52, a protrusion 53, a rotating shaft 6, a motor 7, a transmission part 8, a spring 81, a limiting pin 82, a limiting pin 83, a torque limiter 9, a fan 91 and a connecting shaft 92.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, a cylindrical rotary-opening fire-fighting valve comprises a valve body 1, a first support rod 11, a second support rod 12, a first rotary baffle 2, a second rotary baffle 3, a third rotary baffle 4, a sealing limit plate 5, a rotating shaft 6, a motor 7 and a transmission component 8; the inner surface of the valve body 1 is cylindrical; the first support rod 11 is arranged in the valve body 1; two ends of the first support rod 11 are fixedly connected to the inner surface of the valve body 1; the first rotary baffle 2 is arranged on one side, close to the first support rod 11, in the valve body 1; one end of the first rotary baffle 2 is fixedly connected to the inner surface of the valve body 1; the middle part of the first rotating baffle 2 is rotatably connected with the rotating shaft 6; one end of the rotating shaft 6 is rotatably connected to the first supporting rod 11; the third rotating baffle 4 is arranged on one side, far away from the first supporting rod 11, of the first rotating baffle 2; the third rotating baffle 4 is fixedly connected to the rotating shaft 6; one side of the first rotating baffle 2 is provided with the sealing limit plate 5; one end of the sealing limit plate 5 is fixedly connected to the first rotating baffle 2; the other end of the sealing limit plate 5 is provided with a first groove 51; one side of the third rotating baffle 4 is inserted into the first groove 51 when the fire damper is closed; the second rotating baffle 3 is arranged between the first rotating baffle 2 and the third rotating baffle 4; the second rotating baffle 3 is connected with the rotating shaft 6 through the transmission component 8; the second support rod 12 is arranged at the other end of the rotating shaft 6; the second support rod 12 is fixedly connected to the inner surface of the valve body 1; the second support rod 12 is fixedly connected with a mounting seat of the motor 7, and a rotating shaft of the motor 7 penetrates through the second support rod 12 to be connected with the rotating shaft 6; wherein,
the transmission part 8 comprises a spring 81, a first limiting pin 82 and a second limiting pin 83; the inner part of the joint of the second rotating baffle 3 and the rotating shaft 6 is an annular cavity; the second rotating baffle 3 is provided with an avoidance hole 31 and a first mounting hole along the radial direction corresponding to the annular cavity; a second mounting hole is formed in the position, corresponding to the annular cavity, of the rotating shaft 6; the first limiting pin 82 penetrates through the avoidance hole 31 and is fixedly connected in the second mounting hole; the second limiting pin 83 is fixedly connected in the first mounting hole; two springs 81 are arranged in the annular cavity of the second rotary baffle plate 3; one end of the spring 81 is in contact with the first limiting pin 82; the other end of the spring 81 is in contact with the second limit pin 83.
When the fire-fighting valve is in operation, the motor 7 drives the rotating shaft 6 to rotate so as to drive the second rotating baffle plate 3 and the third rotating baffle plate 4 to rotate, in the process, the rotating shaft 6 drives the first limiting pin 82 to rotate, the first limiting pin 82 drives the second limiting pin 83 to rotate through the spring 81, the second limiting pin 83 drives the second rotating baffle plate 3 to rotate, when one side of the third rotating baffle plate 4 is inserted into the first groove 51 on the sealing limiting plate 5, the sealing limiting plate 5 blocks the third rotating baffle plate 4 from continuing to rotate, the third rotating baffle plate 4, and then realized keeping apart the conflagration district, and then avoided the stretching of conflagration, and then reduced the loss that the conflagration caused the personal property.
As shown in fig. 1, 2 and 6, a first protrusion 41 is disposed on one side of the third rotating baffle 4, which is close to the second rotating baffle 3; a second groove 42 is formed in the other side of the third rotating baffle 4; a third groove 52 is formed in the first groove 51 of the sealing limit plate 5 corresponding to the first bulge 41; a second bulge 53 is arranged in the first groove 51 of the sealing limit plate 5 corresponding to the second groove 42; a torque limiter 9 is arranged between the rotating shaft 6 and the rotating shaft of the motor 7; one end of the torque limiter 9 is connected with the rotating shaft 6; the other end of the torque limiter 9 is fixedly connected to a rotating shaft of the motor 7; a fan 91 is arranged between the torque limiter 9 and the second support rod 12; the fan 91 is fixedly connected to the rotating shaft of the motor 7.
When the heat dissipation valve works, because the indoor temperature of a fire disaster is high, the temperatures of the rotating shaft 6, the first rotating baffle 2, the second rotating baffle 3 and the third rotating baffle 4 are rapidly increased, and then high temperature is transmitted to the motor 7 through the rotating shaft 6, so that the working temperature of the motor 7 is increased, further the motor 7 in work is damaged, in order to prolong the service life of the motor 7, the fan 91 is arranged on the rotating shaft of the motor 7, further the motor 7 rotates to drive the fan 91 to rotate, further the fan 91 rotates to enable air in the valve to flow through, further the heat dissipation of the motor 7 is realized, and further the service life of the motor 7 in continuous operation is prolonged; after one side of the third rotating baffle 4 is inserted into the first groove 51 on the sealing and limiting plate 5, the sealing and limiting plate 5 blocks the third rotating baffle 4 from continuing to rotate, so that the rotating shaft 6 is required to stop rotating, and further, the torque limiter 9 is arranged between the rotating shaft 6 and the motor 7, so that when the torque value between the rotating shaft 6 and the rotating shaft of the motor 7 exceeds the torque value set by the torque limiter 9, the torque limiter 9 slips, the rotating shaft 6 is disconnected from the rotating shaft of the motor 7, and further, the fan 91 continues to rotate; because the protruding 41 on No. three whirl board 4 cooperates with No. two recesses 42 on the sealed limiting plate 5 again, No. three recesses 52 on No. three whirl board 4 cooperate with No. two protruding 53 on the sealed limiting plate 5, and then avoided the fire prevention valve to close the back, because become to rotate between the pivot of axis of rotation 6 and motor 7 and be connected, and then avoid No. three whirl board 4 to break away from a recess 51 on the sealed limiting plate 5 under the effect of gravity, and then avoid the fire prevention valve of closing originally to open automatically, and then guarantee that the fire prevention valve can effectual separation fireworks.
As shown in fig. 4, 7 and 9, L-shaped sealing bosses 21 are respectively arranged between the first rotating baffle plate 2 and the second rotating baffle plate 3, and between the second rotating baffle plate 3 and the third rotating baffle plate 4; the side surface of the L-shaped sealing boss 21 is provided with an inclined surface 22; the two L-shaped bosses adjacent to each other are sealed by the inclined surface 22.
When the fireproof valve is in work, the two L-shaped sealing bosses 21 which are close to each other are matched with each other, so that the first rotating baffle 2 limits the second rotating baffle 3, the second rotating baffle 3 limits the third rotating baffle 4 in the process of closing the fireproof valve, and the first rotating baffle 2 and the second rotating baffle 3, and the second rotating baffle 3 and the third rotating baffle 4 are always in contact with each other when the fireproof valve is closed; because the lateral wall of L shape sealed boss 21 sets up to inclined plane 22 again, and then prevent to become point or line contact by the face contact between the L shape sealed boss 21 that leads to being close to each other because processing or assembly error, and then guaranteed to be face contact all the time between the inclined plane 22 of the L shape sealed boss 21 that is close to each other in the process that the fire prevention valve closed, and then realized the sealed of two L shape sealed bosses 21 that are close to each other, and then realized the sealed between 2 and No. two rotating damper 3 of a rotating damper, No. two rotating damper 3 and No. three rotating damper 4.
As shown in fig. 8 and 9, a first rotating groove 13 is formed on the inner surface of the valve body 1 corresponding to the rotating track of the second rotating baffle 3; a second rotary groove 14 is formed in the inner surface of the valve body 1 corresponding to the rotary track of the third rotary baffle 4; a step surface 15 is formed between the first rotary groove 13 and the second rotary groove 14; the step surface 15 is used for sealing the second rotating baffle 3.
When the fire damper works, in the process of closing the fire damper, the second rotary baffle 3 slides in the first rotary groove 13, the third rotary baffle 4 slides in the second rotary groove 14, and then high-temperature flue gas passes through a side gap between the second rotary baffle 3 and the first groove 51, and also passes through an end surface gap between the second rotary baffle 3 and the first groove 51 after the fire damper is closed, and meanwhile, high-temperature flue gas passes through a side gap between the third rotary baffle 4 and the second groove 42, and also passes through an end surface gap between the third rotary baffle 4 and the second groove 42, so that the high-temperature flue gas can enter the pipeline, and further the path of the high-temperature flue gas entering the pipeline is increased, further the sealing between the second rotary baffle 3, the third rotary baffle 4 and the valve body 1 is improved, further the sealing effect of the fire damper is improved, and further the flue gas is prevented from being transmitted into other rooms, thereby avoiding the damage to other indoor personnel.
As shown in fig. 4, the seal limiting plate 5 is made of an elastic metal plate by bending; the inside of the sealing limit plate 5 is of a hollow structure.
When the sealing limiting plate 5 works, the sealing limiting plate 5 is made by bending an elastic metal plate and is hollow inside, so that when the third rotating baffle 4 is inserted into the first groove 51 on the sealing limiting plate 5, the inner wall of the first groove 51 is deformed, and smooth insertion and locking between the first protrusion 41 on the third rotating baffle 4 and the second groove 42 on the sealing limiting plate 5, and between the third groove 52 on the third rotating baffle 4 and the second protrusion 53 on the sealing limiting plate 5 are facilitated; when No. three whirl baffle 4 striking sealed limiting plate 5 simultaneously, because sealed limiting plate 5 has the cushioning effect, and then prevent that No. three whirl baffle 4 from taking place to warp, and then prevent that No. three whirl baffle 4 card from dying in No. two rotatory recesses 14, and then guarantee smooth opening behind the fire prevention valve after the conflagration is put out, and then guarantee the indoor ventilation of conflagration putting out back.
As shown in fig. 2, the rotation shaft 6 is connected to the torque limiter 9 through a connection shaft 92; the connecting shaft 92 is made of a non-metal material with poor thermal conductivity; one end of the connecting shaft 92 is fixedly connected to the rotating shaft 6; the other end of the connecting shaft 92 is fixedly connected to the torque limiter 9.
When the torque limiter works, the connecting shaft 92 is arranged between the torque limiter 9 and the rotating shaft 6, and the connecting shaft 92 is made of a non-metal material with poor heat conductivity, so that high-temperature heat is prevented from being directly transmitted to the torque limiter 9, the temperature of the torque limiter 9 is prevented from being rapidly increased, the damage to the torque limiter 9 due to the temperature increase is avoided, and the service life of the torque limiter 9 is prolonged; meanwhile, high-temperature heat is prevented from being rapidly transmitted to the motor 7, and the motor 7 is prevented from being burnt due to overhigh temperature, so that the motor 7 can be continuously operated.
When the fire-fighting valve is in work, the motor 7 drives the rotating shaft 6 to rotate so as to drive the second rotating baffle plate 3 and the third rotating baffle plate 4 to rotate, in the process, the rotating shaft 6 drives the first limiting pin 82 to rotate, the first limiting pin 82 drives the second limiting pin 83 to rotate through the spring 81, the second limiting pin 83 drives the second rotating baffle plate 3 to rotate, when one side of the third rotating baffle plate 4 is inserted into the first groove 51 on the sealing limiting plate 5, then high temperature is transmitted to the motor 7 through the rotating shaft 6, so that the working temperature of the motor 7 is increased, the motor 7 in working is damaged, and in order to prolong the service life of the motor 7, the fan 91 is arranged on the rotating shaft of the motor 7, then the motor 7 rotates to drive the fan 91 to rotate, and then the fan 91 rotates to enable air in the valve to flow through, so that the heat dissipation of the motor 7 is realized, and the service life of the motor 7 in continuous operation is prolonged; after one side of the third rotating baffle 4 is inserted into the first groove 51 of the sealing limiting plate 5, the sealing limiting plate 5 blocks the third rotating baffle 4 from continuing to rotate, so that the rotating shaft 6 needs to stop rotating, and further, the torque limiter 9 is arranged between the rotating shaft 6 and the motor 7, so that when the torque value between the rotating shaft 6 and the rotating shaft of the motor 7 exceeds the torque value set by the torque limiter 9, the torque limiter 9 slips, the rotating shaft 6 is disconnected from the rotating shaft of the motor 7, and further, the fan 91 continues to rotate.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. The utility model provides a fire control fire prevention valve is opened in cylinder type rotation which characterized in that: the valve comprises a valve body (1), a first support rod (11), a second support rod (12), a first rotating baffle (2), a second rotating baffle (3), a third rotating baffle (4), a sealing limit plate (5), a rotating shaft (6), a motor (7) and a transmission part (8); the inner surface of the valve body (1) is cylindrical; the first support rod (11) is arranged in the valve body (1); two ends of the first supporting rod (11) are fixedly connected to the inner surface of the valve body (1); the first rotary baffle (2) is arranged on one side, close to the first supporting rod (11), in the valve body (1); one end of the first rotating baffle (2) is fixedly connected to the inner surface of the valve body (1); the middle part of the first rotating baffle (2) is rotatably connected with the rotating shaft (6); one end of the rotating shaft (6) is rotatably connected to the first supporting rod (11); the third rotating baffle (4) is arranged on one side, away from the first supporting rod (11), of the first rotating baffle (2); the third rotating baffle (4) is fixedly connected to the rotating shaft (6); one side of the first rotating baffle (2) is provided with the sealing limit plate (5); one end of the sealing limit plate (5) is fixedly connected to the first rotating baffle (2); the other end of the sealing limit plate (5) is provided with a first groove (51); one side of the third rotary baffle (4) is inserted into the first groove (51) when the fire damper is closed; the second rotating baffle (3) is arranged between the first rotating baffle (2) and the third rotating baffle (4); the second rotating baffle (3) is connected with the rotating shaft (6) through the transmission part (8); the second support rod (12) is arranged at the other end of the rotating shaft (6); the second support rod (12) is fixedly connected to the inner surface of the valve body (1); the second support rod (12) is fixedly connected with a mounting seat of the motor (7), and a rotating shaft of the motor (7) penetrates through the second support rod (12) to be connected with the rotating shaft (6); wherein,
the transmission component (8) comprises a spring (81), a first limiting pin (82) and a second limiting pin (83); the inner part of the joint of the second rotating baffle (3) and the rotating shaft (6) is an annular cavity; the second rotating baffle (3) is provided with an avoidance hole (31) and a first mounting hole along the radial direction corresponding to the position of the annular cavity; a second mounting hole is formed in the position, corresponding to the annular cavity, of the rotating shaft (6); the first limiting pin (82) penetrates through the avoidance hole (31) and is fixedly connected into the second mounting hole; the second limiting pin (83) is fixedly connected in the first mounting hole; two springs (81) are arranged in an annular cavity of the second rotary baffle (3); one end of the spring (81) is in contact with the first limiting pin (82); the other end of the spring (81) is in contact with the second limiting pin (83).
2. A cylindrical rotary-opening fire-fighting fire damper as recited in claim 1, wherein: a first bulge (41) is arranged on one side, close to the second rotary baffle (3), of the third rotary baffle (4); a second groove (42) is formed in the other side of the third rotating baffle (4); a third groove (52) is formed in the first groove (51) on the sealing limit plate (5) corresponding to the first bulge (41); a second bulge (53) is arranged in the first groove (51) on the sealing limit plate (5) corresponding to the second groove (42); a torque limiter (9) is arranged between the rotating shaft (6) and the rotating shaft of the motor (7); one end of the torque limiter (9) is connected with the rotating shaft (6); the other end of the torque limiter (9) is fixedly connected to a rotating shaft of the motor (7); a fan (91) is arranged between the torque limiter (9) and the second support rod (12); the fan (91) is fixedly connected to a rotating shaft of the motor (7).
3. A cylindrical rotary-opening fire-fighting fire damper as defined in claim 2, wherein: l-shaped sealing bosses (21) are arranged between the first rotating baffle (2) and the second rotating baffle (3) and between the second rotating baffle (3) and the third rotating baffle (4); the side surface of the L-shaped sealing boss (21) is provided with an inclined surface (22); the two L-shaped bosses close to each other are sealed by the inclined surface (22).
4. A cylindrical rotary-opening fire-fighting fire damper as defined in claim 3, wherein: a first rotating groove (13) is formed in the inner surface of the valve body (1) corresponding to the rotating track of the second rotating baffle (3); a second rotary groove (14) is formed in the inner surface of the valve body (1) corresponding to the rotary track of the third rotary baffle (4); a step surface (15) is formed between the first rotary groove (13) and the second rotary groove (14); the step surface (15) is used for sealing the second rotating baffle (3).
5. A cylindrical rotary-opening fire-fighting fire damper as claimed in claim 4, characterized in that: the sealing limit plate (5) is made by bending an elastic metal plate; the interior of the sealing limit plate (5) is of a hollow structure.
6. A cylindrical rotary-opening fire-fighting fire damper as recited in claim 5, wherein: the rotating shaft (6) is connected with the torque limiter (9) through a connecting shaft (92); the connecting shaft (92) is made of a non-metal material with poor heat conductivity; one end of the connecting shaft (92) is fixedly connected to the rotating shaft (6); the other end of the connecting shaft (92) is fixedly connected to the torque limiter (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010779053.3A CN111911644B (en) | 2020-08-05 | 2020-08-05 | Cylindrical rotary opening fire-fighting fire-proof valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010779053.3A CN111911644B (en) | 2020-08-05 | 2020-08-05 | Cylindrical rotary opening fire-fighting fire-proof valve |
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| CN111911644A true CN111911644A (en) | 2020-11-10 |
| CN111911644B CN111911644B (en) | 2022-08-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236797A (en) * | 2021-04-16 | 2021-08-10 | 浙江拓特工程设备有限公司 | Fire prevention valve convenient to installation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6010113A (en) * | 1998-06-15 | 2000-01-04 | Honeywell, Inc. | Damper with fanning blades |
| CN2592982Y (en) * | 2002-12-18 | 2003-12-17 | 洪永忠 | Self-sealing energy-saving stop ualve |
| CN204372209U (en) * | 2014-11-26 | 2015-06-03 | 天津金鹏机电设备有限公司 | A kind of Novel fire damper |
| CN210034594U (en) * | 2019-05-05 | 2020-02-07 | 中泰博瑞(天津)机电设备有限公司 | Smoke-discharging fire-proof valve with remote control function |
-
2020
- 2020-08-05 CN CN202010779053.3A patent/CN111911644B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6010113A (en) * | 1998-06-15 | 2000-01-04 | Honeywell, Inc. | Damper with fanning blades |
| CN2592982Y (en) * | 2002-12-18 | 2003-12-17 | 洪永忠 | Self-sealing energy-saving stop ualve |
| CN204372209U (en) * | 2014-11-26 | 2015-06-03 | 天津金鹏机电设备有限公司 | A kind of Novel fire damper |
| CN210034594U (en) * | 2019-05-05 | 2020-02-07 | 中泰博瑞(天津)机电设备有限公司 | Smoke-discharging fire-proof valve with remote control function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236797A (en) * | 2021-04-16 | 2021-08-10 | 浙江拓特工程设备有限公司 | Fire prevention valve convenient to installation |
| CN113236797B (en) * | 2021-04-16 | 2022-11-15 | 绍兴上虞拓特风机有限公司 | Fire prevention valve convenient to installation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111911644B (en) | 2022-08-02 |
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