CN111764806A - Fire window capable of being automatically closed - Google Patents
Fire window capable of being automatically closed Download PDFInfo
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- CN111764806A CN111764806A CN202010756552.0A CN202010756552A CN111764806A CN 111764806 A CN111764806 A CN 111764806A CN 202010756552 A CN202010756552 A CN 202010756552A CN 111764806 A CN111764806 A CN 111764806A
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- window
- worm
- bimetallic strip
- fire
- transverse plate
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 7
- 230000005484 gravity Effects 0.000 description 15
- 238000006073 displacement reaction Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/002—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means
- E05F1/006—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means by emergency conditions, e.g. fire
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/02—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
- E05F11/02—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights
- E05F11/04—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with cords, chains or cables
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
- E06B3/38—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a horizontal axis of rotation at the top or bottom of the opening
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/148—Windows
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Special Wing (AREA)
Abstract
The invention provides a fire window capable of being automatically closed, which comprises a window frame, a window, pulleys, a pull rope, a worm wheel, a worm, support plates, a bimetallic strip and a protection device, wherein the worm is rotatably connected between the two support plates, the two supporting plates are fixedly arranged on the active layer of the bimetallic strip, the bimetallic strip is fixedly arranged on the window frame, the protection device comprises a shell, a connecting plate, a first transverse plate, a connecting rod, a second transverse plate, a limit stop block and an elastic component, one end of the two connecting plates is respectively and fixedly connected with the two ends of the bimetallic strip, the other end is respectively and fixedly connected with the two ends of the first transverse plate, one end of the connecting rod is fixedly connected with the middle part of the first transverse plate, the other end is positioned in the inner cavity of the shell, the second transverse plate is fixedly connected with the other end of the connecting rod, the limiting block is fixedly arranged on the connecting rod, one end of the elastic component is connected with the bottom surface of the inner cavity of the shell, and the other end of the elastic component is fixedly connected with the bottom of the second transverse plate. The invention can automatically close the fire window when a fire disaster happens, and the whole structure is simple.
Description
Technical Field
The invention relates to the technical field of doors and windows, in particular to a fireproof window capable of being automatically closed.
Background
A fire refers to a disaster caused by combustion that is out of control in time or space. Among the various disasters, fire is one of the main disasters that threaten public safety and social development most often and most generally. Three conditions are required for the formation of a fire: combustible materials, air and fire sources, and fire extinguishing is usually carried out by methods of suffocation, cooling, fire species removal and the like after a fire occurs. When a fire occurs, the indoor temperature reaches 400 ℃ and gradually rises, and it is necessary to take fire prevention measures to control the spread or spread of the fire. Most of the existing fire windows adopt an automatic detection and control system to close the window when a fire disaster happens, and the existing fire windows are complex in structure and high in cost.
Disclosure of Invention
In order to overcome the problems that the conventional fire window is mostly closed by adopting an automatic detection and control system when a fire disaster happens, the structure is complex and the cost is high, the invention provides the fire window capable of being automatically closed, and the specific technical scheme is as follows:
a fire window capable of being automatically closed comprises a window frame, a window, pulleys and a pull rope, wherein one end of the window is hinged to the upper portion of the window frame through a hinge, the pulleys are fixedly arranged at the top end of the window frame, the pull rope is wound on a groove formed in the pulleys, one end of the pull rope is fixedly arranged at the other end of the window, the fire window further comprises a worm wheel, a worm, two supporting plates, a bimetallic strip and a protection device, the worm wheel is rotatably connected to the window frame through a rotating shaft, the other end of the pull rope is fixedly arranged on the rotating shaft, the worm penetrates through the two supporting plates and is rotatably connected to the two supporting plates and meshed with the worm wheel, the two supporting plates are fixedly arranged on an active layer of the bimetallic strip, the bimetallic strip is fixedly arranged on the window frame, and the active layer of the bimetallic strip is, the protection device comprises a shell, a connecting plate, a first transverse plate, a connecting rod, a second transverse plate, a limit stop and an elastic part, the outer shell is arranged on the window frame and is positioned below the bimetallic strip, the connecting plates are provided with two connecting plates, one end of each connecting plate is fixedly connected with the two ends of the bimetallic strip, the other ends of the two connecting plates are fixedly connected with the two ends of the first transverse plate, one end of the connecting rod is fixedly connected with the middle part of the first transverse plate, the other end of the connecting rod penetrates through the shell and then is positioned in the inner cavity of the shell, the middle part of the second transverse plate is fixedly connected with the other end of the connecting rod, the limiting block is fixedly arranged on the connecting rod and positioned in the inner cavity of the shell, one end of the elastic component is fixedly connected with the bottom surface of the inner cavity of the shell, and the other end of the elastic component is fixedly connected with the bottom of the second transverse plate.
Optionally, the elastic member is a coil spring.
Optionally, the window frame is made of an aluminum alloy material.
Optionally, the housing is in a hollow square tube shape and made of an aluminum alloy material.
Optionally, the first transverse plate and the second transverse plate are parallel to each other.
Optionally, the helix angle of the worm is less than the friction angle of the worm gear contact.
The beneficial effects obtained by the invention comprise: through setting up worm, worm wheel, bimetallic strip and protection device, not only can make the worm wheel and worm mesh better together in order to adjust the window aperture, can also make fire window self-closing when the conflagration takes place, avoid the intensity of a fire to stretch, its overall structure is simple, and the cost is lower, is fit for promoting.
Drawings
The present invention will be further understood from the following description taken in conjunction with the accompanying drawings, the emphasis instead being placed upon illustrating the principles of the embodiments.
Fig. 1 is a schematic view of an overall structure of an automatically closable fire window according to an embodiment of the present invention;
FIG. 2 is a first schematic structural diagram of a protection device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a protection device in an embodiment of the present invention.
Description of reference numerals:
1. a window frame; 2. a window; 3. a pulley; 4. a worm gear; 5. a worm; 6. a bimetal; 7. a support plate; 8. pulling a rope; 60. an active layer; 61. a passive layer; 9. a housing; 10. a connecting plate; 11. a first transverse plate; 12. a connecting rod; 13. a second transverse plate; 14. a limit stop block; 15. a temperature sensitive deformation member; 16. an elastic member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof.
The invention relates to a fire window capable of being automatically closed, which explains the following embodiments according to the attached drawings:
the first embodiment is as follows:
referring to fig. 1 and 2, the fire window capable of being automatically closed includes a window frame 1, a window 2, a pulley 3 and a pull rope 8, wherein one end of the window 2 is hinged to the upper portion of the window frame 1 through a hinge, a central shaft of the pulley 3 is fixedly disposed at the top end of the window frame 1, a groove is disposed on the circumferential surface of the pulley 3, one end of the pull rope 8 is fixedly disposed at the other end of the window 2, specifically, one end of the pull rope 8 is disposed at the middle portion of a side frame of the window 2, which is far away from the window frame 1, and the other end of the pull rope 8 crosses over the groove of the pulley 3 through the outer side of the window 2 and. The fire window still includes worm wheel 4, worm 5, two backup pads 7, bimetallic strip 6 and protection device that are parallel to each other, worm wheel 4 rotationally connects on window frame 1 through the pivot, the other end of stay cord 8 sets firmly on the pivot, worm 5 passes two backup pad 7 rotationally connects in two above backup pad 7 and with worm wheel 4 meshes, two backup pad 7 sets firmly on bimetallic strip 6's initiative layer 60, bimetallic strip 6 sets firmly on window frame 1 and bimetallic strip 6's initiative layer 60 is located the top of bimetallic strip 6's passive layer 61.
The protection device comprises a shell 9, a connecting plate 10, a first transverse plate 11, a connecting rod 12, a second transverse plate 13, a limit stop 14 and an elastic component 16, wherein the shell 9 is made of aluminum alloy material with good heat conductivity, is in a hollow square tube shape, is installed on the window frame 1 and is positioned below the bimetallic strip 6; the connecting plates 10 are provided with two connecting plates 10, one ends of the two connecting plates 10 are fixedly connected with two ends of the bimetallic strip 6 respectively, and a gap is reserved between the bimetallic strip 6 and the surface of the window frame 1 so that the bimetallic strip 6 can be bent and deformed normally at high temperature. The other ends of the two connecting plates 10 are respectively fixedly connected with two ends of the first transverse plate 11, one end of the connecting rod 12 is fixedly connected with the middle of the first transverse plate 11, the other end of the connecting rod 12 penetrates through the shell 9 and then is located in the inner cavity of the shell 9, the middle of the second transverse plate 13 is fixedly connected with the other end of the connecting rod 12, the first transverse plate 11 is parallel to the second transverse plate 13, and the limiting block is fixedly mounted on the connecting rod 12 and located in the inner cavity of the shell 9.
The elastic component 16 is located between the second horizontal plate 13 and the bottom surface of the inner cavity of the housing 9, that is, one end of the elastic component 16 is fixedly connected with the bottom surface of the inner cavity of the housing 9, and the other end of the elastic component 16 is fixedly connected with the bottom of the second horizontal plate 13. Specifically, the elastic member 16 is a coil spring. By setting the position distance between the protection device and the worm wheel 4 of the worm 5 and adjusting the length of the spiral spring, the connecting rod 12 and the connecting plate 10, the worm 5 and the worm wheel 4 can be better meshed together by the elasticity of the spiral spring, so that a user can adjust the opening degree of a window by rotating the worm 5.
The width of the two supporting plates 7 is smaller than that of the bimetallic strip 6, and the two supporting plates 7 are arranged at the position, close to the middle part, of the bimetallic strip 6. When the bimetallic strip 6 is bent into an arc shape at a certain radius due to high temperature, the downward displacement of the support plate 7 should be greater than the tooth height of the worm 5, so that the worm 5 is completely separated from the worm wheel 4, and the worm wheel 4 can freely rotate under the action of the self gravity of the window 2 and the pull rope 8 until the window 2 falls down and is closed. The specific dimensions of the bimetal 6 and the support plate 7 can be set by those skilled in the art according to actual conditions, and are not described in detail herein.
When no fire occurs, the bimetallic strip 6 is not deformed, and the worm 5 is meshed with the worm wheel 4. The worm 5 is rotated to rotate the worm wheel 4, and the pull cord 8 is wound around the rotation shaft of the worm wheel 4 to be retracted or released, and the pull cord 8 slides on the pulley 3 to pull the window 2 to be opened or closed.
When a fire disaster occurs, the indoor temperature rises, and high-temperature gas diffuses to the outdoor through the window 2, so that after the bimetallic strip 6 is gradually heated to the deformation temperature, the bimetallic strip 6 deforms, the whole bimetallic strip is bent from the driving layer 60 to one side of the driven layer 61, the worm 5 is driven to move to one side of the driven layer 61, and then the worm 5 is separated from the worm wheel 4. Under window 2's self action of gravity, the winding is at 4 epaxial stay cords 8 of epaxial releases of worm wheel and is loosened, and window 2 will fall automatically and close, blocks indoor outer circulation of air, so not only can prevent indoor high temperature gas diffusion, prevent that the intensity of a fire from stretching, also can avoid outdoor air to get into indoorly, make indoor flame extinguish by oneself because of oxygen exhausts.
Compared with the fire window which is closed by adopting an automatic detection and control system in the prior art, the fire window can effectively automatically close the window when a fire disaster occurs through common cheap components such as bimetallic, worm gear and the like, so that the fire spread is avoided, and the fire window is simple in integral structure and low in cost.
When indoor flame goes out and the indoor temperature is reduced, the bimetallic strip 6 is restored to the original shape, the worm 5 is re-meshed with the worm wheel 4, and the window 2 can be opened again by rotating the worm 5.
In practical application, when the fire window is normally opened and closed, the spiral spring is in a compressed state, and generates certain elastic force to enable the connecting rod 12, the connecting plate 10, the bimetallic strip 6 and the worm 5 to keep an upward movement trend, and the worm 5 and the worm wheel 4 are just meshed together under the elastic force of the spiral spring. At this time, the limit stop 14 contacts with the top surface of the inner cavity of the housing 9 to limit the connecting rod 12 and the second transverse plate 13 to move upwards continuously, so as to avoid that the friction force between the worm 5 and the worm wheel 4 is too large to drive the worm wheel smoothly through the worm. So, when bimetallic strip 6 is bent into the arc with certain radius because of high temperature, backup pad 7 displacement volume downwards is greater than the tooth height of worm 5, and worm 5 breaks away from with worm wheel 4 completely, and the fire window self-closing under window 2 self action of gravity.
Example two:
referring to fig. 1 and 2, the fire window capable of being automatically closed includes a window frame 1, a window 2, a pulley 3 and a pull rope 8, wherein one end of the window 2 is hinged to the upper portion of the window frame 1 through a hinge, a central shaft of the pulley 3 is fixedly disposed at the top end of the window frame 1, a groove is disposed on the circumferential surface of the pulley 3, one end of the pull rope 8 is fixedly disposed at the other end of the window 2, specifically, one end of the pull rope 8 is disposed at the middle portion of a side frame of the window 2, which is far away from the window frame 1, and the other end of the pull rope 8 crosses over the groove of the pulley 3 through the outer side of the window 2 and. The fire window still includes worm wheel 4, worm 5, two backup pads 7, bimetallic strip 6 and protection device that are parallel to each other, worm wheel 4 rotationally connects on window frame 1 through the pivot, the other end of stay cord 8 sets firmly on the pivot, worm 5 passes two backup pad 7 rotationally connects in two above backup pad 7 and with worm wheel 4 meshes, two backup pad 7 sets firmly on bimetallic strip 6's initiative layer 60, bimetallic strip 6 sets firmly on window frame 1 and bimetallic strip 6's initiative layer 60 is located the top of bimetallic strip 6's passive layer 61.
The protection device comprises a shell 9, a connecting plate 10, a first transverse plate 11, a connecting rod 12, a second transverse plate 13, a limit stop 14 and an elastic component 16, wherein the shell 9 is made of aluminum alloy material with good heat conductivity, is in a hollow square tube shape, is installed on the window frame 1 and is positioned below the bimetallic strip 6; the connecting plates 10 are provided with two connecting plates 10, one ends of the two connecting plates 10 are fixedly connected with two ends of the bimetallic strip 6 respectively, and a gap is reserved between the bimetallic strip 6 and the surface of the window frame 1 so that the bimetallic strip 6 can be bent and deformed normally at high temperature. The other ends of the two connecting plates 10 are respectively fixedly connected with two ends of the first transverse plate 11, one end of the connecting rod 12 is fixedly connected with the middle of the first transverse plate 11, the other end of the connecting rod 12 penetrates through the shell 9 and then is located in the inner cavity of the shell 9, the middle of the second transverse plate 13 is fixedly connected with the other end of the connecting rod 12, the first transverse plate 11 is parallel to the second transverse plate 13, and the limiting block is fixedly mounted on the connecting rod 12 and located in the inner cavity of the shell 9.
The elastic component 16 is located between the second horizontal plate 13 and the bottom surface of the inner cavity of the housing 9, that is, one end of the elastic component 16 is fixedly connected with the bottom surface of the inner cavity of the housing 9, and the other end of the elastic component 16 is fixedly connected with the bottom of the second horizontal plate 13. Specifically, the elastic member 16 is a coil spring. By setting the position distance between the protection device and the worm wheel 4 of the worm 5 and adjusting the length of the spiral spring, the connecting rod 12 and the connecting plate 10, the worm 5 and the worm wheel 4 can be better meshed together by the elasticity of the spiral spring, so that a user can adjust the opening degree of a window by rotating the worm 5.
The width of the two supporting plates 7 is smaller than that of the bimetallic strip 6, and the two supporting plates 7 are arranged at the position, close to the middle part, of the bimetallic strip 6. When the bimetallic strip 6 is bent into an arc shape at a certain radius due to high temperature, the downward displacement of the support plate 7 should be greater than the tooth height of the worm 5, so that the worm 5 is completely separated from the worm wheel 4, and the worm wheel 4 can freely rotate under the action of the self gravity of the window 2 and the pull rope 8 until the window 2 falls down and is closed. The specific dimensions of the bimetal 6 and the support plate 7 can be set by those skilled in the art according to actual conditions, and are not described in detail herein.
When no fire occurs, the bimetallic strip 6 is not deformed, and the worm 5 is meshed with the worm wheel 4. The worm 5 is rotated to rotate the worm wheel 4, and the pull cord 8 is wound around the rotation shaft of the worm wheel 4 to be retracted or released, and the pull cord 8 slides on the pulley 3 to pull the window 2 to be opened or closed.
When a fire disaster occurs, the indoor temperature rises, and high-temperature gas diffuses to the outdoor through the window 2, so that after the bimetallic strip 6 is gradually heated to the deformation temperature, the bimetallic strip 6 deforms, the whole bimetallic strip is bent from the driving layer 60 to one side of the driven layer 61, the worm 5 is driven to move to one side of the driven layer 61, and then the worm 5 is separated from the worm wheel 4. Under window 2's self action of gravity, the winding is at 4 epaxial stay cords 8 of epaxial releases of worm wheel and is loosened, and window 2 will fall automatically and close, blocks indoor outer circulation of air, so not only can prevent indoor high temperature gas diffusion, prevent that the intensity of a fire from stretching, also can avoid outdoor air to get into indoorly, make indoor flame extinguish by oneself because of oxygen exhausts.
Compared with the fire window which is closed by adopting an automatic detection and control system in the prior art, the fire window can effectively automatically close the window when a fire disaster occurs through common cheap components such as bimetallic, worm gear and the like, so that the fire spread is avoided, and the fire window is simple in integral structure and low in cost.
When indoor flame goes out and the indoor temperature is reduced, the bimetallic strip 6 is restored to the original shape, the worm 5 is re-meshed with the worm wheel 4, and the window 2 can be opened again by rotating the worm 5.
In practical application, when the fire window is normally opened and closed, the spiral spring is in a compressed state, and generates certain elastic force to enable the connecting rod 12, the connecting plate 10, the bimetallic strip 6 and the worm 5 to keep an upward movement trend, and the worm 5 and the worm wheel 4 are just meshed together under the elastic force of the spiral spring. At this time, the limit stop 14 contacts with the top surface of the inner cavity of the housing 9 to limit the connecting rod 12 and the second transverse plate 13 to move upwards continuously, so as to avoid that the friction force between the worm 5 and the worm wheel 4 is too large to drive the worm wheel smoothly through the worm. So, when bimetallic strip 6 is bent into the arc with certain radius because of high temperature, backup pad 7 displacement volume downwards is greater than the tooth height of worm 5, and worm 5 breaks away from with worm wheel 4 completely, and the fire window self-closing under window 2 self action of gravity.
The bimetallic strip 6 is a snap-action bimetallic disk, and the operating temperature is above 100 ℃, and the reset temperature is below 60 ℃. The bimetallic strip 6 is set as a snap-action bimetallic disk, so that the opening and closing stability of the fire window can be improved, and the automatic closing action of the fire window is prevented from being mistaken.
The worm wheel 4, the worm 5, the window frame 1, the support plate 7, and the support plate are made of a metal material having good thermal conductivity, preferably an aluminum alloy having good thermal conductivity. So, the sensing indoor temperature that fire prevention window can be better in time makes bimetallic strip 6 take place deformation when the conflagration takes place, and then 5 worm wheels of worm 4 break away from, closes window 2 in order to avoid the intensity of a fire to spread.
The weight of the window 2 differs due to the different profiles. In order that the bimetallic strip 6 is not deformed and bent under the gravity action of the worm 5 and the supporting plate 7, the bimetallic strip 6 can be two-layer, three-layer, four-layer or multi-layer thermal bimetallic strip 6 according to actual conditions, and the description of the embodiment is omitted.
In some embodiments, the helix angle of the worm 5 is less than the angle of friction of the worm gear 5 contact. In this way, a self-locking of the worm 5 and the worm wheel 4 can be achieved, so that only the worm 5 can drive the worm wheel 4. When a fire disaster does not happen, the window 2 can be conveniently opened to a certain angle by rotating the worm 5, the worm wheel 4 cannot rotate under the self gravity of the window 2, and then the worm 5 is driven to rotate, so that the window 2 is automatically closed under the self gravity.
Example three:
referring to fig. 1 and 2, the fire window capable of being automatically closed includes a window frame 1, a window 2, a pulley 3 and a pull rope 8, wherein one end of the window 2 is hinged to the upper portion of the window frame 1 through a hinge, a central shaft of the pulley 3 is fixedly disposed at the top end of the window frame 1, a groove is disposed on the circumferential surface of the pulley 3, one end of the pull rope 8 is fixedly disposed at the other end of the window 2, specifically, one end of the pull rope 8 is disposed at the middle portion of a side frame of the window 2, which is far away from the window frame 1, and the other end of the pull rope 8 crosses over the groove of the pulley 3 through the outer side of the window 2 and. The fire window still includes worm wheel 4, worm 5, two backup pads 7, bimetallic strip 6 and protection device that are parallel to each other, worm wheel 4 rotationally connects on window frame 1 through the pivot, the other end of stay cord 8 sets firmly on the pivot, worm 5 passes two backup pad 7 rotationally connects in two above backup pad 7 and with worm wheel 4 meshes, two backup pad 7 sets firmly on bimetallic strip 6's initiative layer 60, bimetallic strip 6 sets firmly on window frame 1 and bimetallic strip 6's initiative layer 60 is located the top of bimetallic strip 6's passive layer 61.
The protection device comprises a shell 9, a connecting plate 10, a first transverse plate 11, a connecting rod 12, a second transverse plate 13, a limit stop 14 and an elastic component 16, wherein the shell 9 is made of aluminum alloy material with good heat conductivity, is in a hollow square tube shape, is installed on the window frame 1 and is positioned below the bimetallic strip 6; the connecting plates 10 are provided with two connecting plates 10, one ends of the two connecting plates 10 are fixedly connected with two ends of the bimetallic strip 6 respectively, and a gap is reserved between the bimetallic strip 6 and the surface of the window frame 1 so that the bimetallic strip 6 can be bent and deformed normally at high temperature. The other ends of the two connecting plates 10 are respectively fixedly connected with two ends of the first transverse plate 11, one end of the connecting rod 12 is fixedly connected with the middle of the first transverse plate 11, the other end of the connecting rod 12 penetrates through the shell 9 and then is located in the inner cavity of the shell 9, the middle of the second transverse plate 13 is fixedly connected with the other end of the connecting rod 12, the first transverse plate 11 is parallel to the second transverse plate 13, and the limiting block is fixedly mounted on the connecting rod 12 and located in the inner cavity of the shell 9.
The elastic component 16 is located between the second horizontal plate 13 and the bottom surface of the inner cavity of the housing 9, that is, one end of the elastic component 16 is fixedly connected with the bottom surface of the inner cavity of the housing 9, and the other end of the elastic component 16 is fixedly connected with the bottom of the second horizontal plate 13. Specifically, the elastic member 16 is a coil spring. By setting the position distance between the protection device and the worm wheel 4 of the worm 5 and adjusting the length of the spiral spring, the connecting rod 12 and the connecting plate 10, the worm 5 and the worm wheel 4 can be better meshed together by the elasticity of the spiral spring, so that a user can adjust the opening degree of a window by rotating the worm 5.
The width of the two supporting plates 7 is smaller than that of the bimetallic strip 6, and the two supporting plates 7 are arranged at the position, close to the middle part, of the bimetallic strip 6. When the bimetallic strip 6 is bent into an arc shape at a certain radius due to high temperature, the downward displacement of the support plate 7 should be greater than the tooth height of the worm 5, so that the worm 5 is completely separated from the worm wheel 4, and the worm wheel 4 can freely rotate under the action of the self gravity of the window 2 and the pull rope 8 until the window 2 falls down and is closed. The specific dimensions of the bimetal 6 and the support plate 7 can be set by those skilled in the art according to actual conditions, and are not described in detail herein.
When no fire occurs, the bimetallic strip 6 is not deformed, and the worm 5 is meshed with the worm wheel 4. The worm 5 is rotated to rotate the worm wheel 4, and the pull cord 8 is wound around the rotation shaft of the worm wheel 4 to be retracted or released, and the pull cord 8 slides on the pulley 3 to pull the window 2 to be opened or closed.
When a fire disaster occurs, the indoor temperature rises, and high-temperature gas diffuses to the outdoor through the window 2, so that after the bimetallic strip 6 is gradually heated to the deformation temperature, the bimetallic strip 6 deforms, the whole bimetallic strip is bent from the driving layer 60 to one side of the driven layer 61, the worm 5 is driven to move to one side of the driven layer 61, and then the worm 5 is separated from the worm wheel 4. Under window 2's self action of gravity, the winding is at 4 epaxial stay cords 8 of epaxial releases of worm wheel and is loosened, and window 2 will fall automatically and close, blocks indoor outer circulation of air, so not only can prevent indoor high temperature gas diffusion, prevent that the intensity of a fire from stretching, also can avoid outdoor air to get into indoorly, make indoor flame extinguish by oneself because of oxygen exhausts.
Compared with the fire window which is closed by adopting an automatic detection and control system in the prior art, the fire window can effectively automatically close the window when a fire disaster occurs through common cheap components such as bimetallic, worm gear and the like, so that the fire spread is avoided, and the fire window is simple in integral structure and low in cost.
When indoor flame goes out and the indoor temperature is reduced, the bimetallic strip 6 is restored to the original shape, the worm 5 is re-meshed with the worm wheel 4, and the window 2 can be opened again by rotating the worm 5.
In practical application, when the fire window is normally opened and closed, the spiral spring is in a compressed state, and generates certain elastic force to enable the connecting rod 12, the connecting plate 10, the bimetallic strip 6 and the worm 5 to keep an upward movement trend, and the worm 5 and the worm wheel 4 are just meshed together under the elastic force of the spiral spring. At this time, the limit stop 14 contacts with the top surface of the inner cavity of the housing 9 to limit the connecting rod 12 and the second transverse plate 13 to move upwards continuously, so as to avoid that the friction force between the worm 5 and the worm wheel 4 is too large to drive the worm wheel smoothly through the worm. So, when bimetallic strip 6 is bent into the arc with certain radius because of high temperature, backup pad 7 displacement volume downwards is greater than the tooth height of worm 5, and worm 5 breaks away from with worm wheel 4 completely, and the fire window self-closing under window 2 self action of gravity.
The bimetallic strip 6 is a snap-action bimetallic disk, and the operating temperature is above 100 ℃, and the reset temperature is below 60 ℃. The bimetallic strip 6 is set as a snap-action bimetallic disk, so that the opening and closing stability of the fire window can be improved, and the automatic closing action of the fire window is prevented from being mistaken.
The worm wheel 4, the worm 5, the window frame 1, the support plate 7, and the support plate are made of a metal material having good thermal conductivity, preferably an aluminum alloy having good thermal conductivity. So, the sensing indoor temperature that fire prevention window can be better in time makes bimetallic strip 6 take place deformation when the conflagration takes place, and then 5 worm wheels of worm 4 break away from, closes window 2 in order to avoid the intensity of a fire to spread.
The weight of the window 2 differs due to the different profiles. In order that the bimetallic strip 6 is not deformed and bent under the gravity action of the worm 5 and the supporting plate 7, the bimetallic strip 6 can be two-layer, three-layer, four-layer or multi-layer thermal bimetallic strip 6 according to actual conditions, and the description of the embodiment is omitted.
In some embodiments, the helix angle of the worm 5 is less than the angle of friction of the worm gear 5 contact. In this way, a self-locking of the worm 5 and the worm wheel 4 can be achieved, so that only the worm 5 can drive the worm wheel 4. When a fire disaster does not happen, the window 2 can be conveniently opened to a certain angle by rotating the worm 5, the worm wheel 4 cannot rotate under the self gravity of the window 2, and then the worm 5 is driven to rotate, so that the window 2 is automatically closed under the self gravity.
In order to prevent the bimetal 6 from failing to close the fire window in time when a fire occurs, the protection device further comprises a temperature sensing deformation part 15 as shown in the figure. The two temperature-sensitive deformation components 15 are respectively arranged at two sides of the connecting rod 12, and one end of each of the two temperature-sensitive deformation components 15 is respectively arranged on the top surface of the inner cavity of the shell 9. Under the condition that no fire occurs, the other ends of the two temperature-sensitive deformation components 15 are suspended and are positioned right above the second transverse plate 13. The temperature sensing deformation member 15 has a characteristic of extending in an axial direction thereof at a specific temperature, and when a fire occurs, the temperature sensing deformation member 15 extends and contacts the second transverse plate 13, and overcomes the elastic force of the coil spring to move the second transverse plate 13 and the connecting rod 12 downward, thereby driving the worm 5 to be separated from the worm wheel 4. Specifically, the temperature-sensitive deformation member 15 is a cylindrical shape memory alloy, and the specific temperature is a phase transition temperature of the shape memory alloy, which is greater than 150 degrees and less than 200 degrees.
The length of the cylindrical shape memory alloy and the phase transition temperature thereof can be selected according to actual conditions, and are not described herein again.
In summary, the fire window capable of being automatically closed disclosed by the present invention has the following beneficial technical effects: through setting up worm, worm wheel, bimetallic strip and protection device, not only can make the worm wheel and worm mesh better together in order to adjust the window aperture, can also make fire window self-closing when the conflagration takes place, avoid the intensity of a fire to stretch, its overall structure is simple, and the cost is lower, is fit for promoting.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (6)
1. The utility model provides a but self-closing's fire window, includes window frame, window, pulley and stay cord, the one end of window is passed through the hinge and is articulated in the upper portion of window frame, the pulley sets firmly in the top of window frame, the stay cord around establishing on the recess of pulley just the one end of stay cord sets firmly in the other end of window, a serial communication port, fire window still includes worm wheel, worm, two backup pads that are parallel to each other, bimetallic strip and protection device, the worm wheel rotationally connects on the window frame through the pivot, the other end of stay cord sets firmly on the pivot, the worm passes two backup pads and rotationally connects in two the backup pads and with the worm wheel meshing, two the backup pad sets firmly on the initiative layer of bimetallic strip, the initiative layer of bimetallic strip is located the top of the passive layer of bimetallic strip, protection device includes shell, pulley, the one end of the, The connecting plate, the first transverse plate, the connecting rod, the second transverse plate, the limit stop and the elastic component are arranged on the window frame, the shell is arranged on the window frame and located below the bimetallic strip, the connecting plate is provided with two connecting plates, one end of each connecting plate is fixedly connected with two ends of the bimetallic strip respectively, the other end of each connecting plate is fixedly connected with two ends of the first transverse plate respectively, one end of each connecting rod is fixedly connected with the middle of the first transverse plate, the other end of each connecting rod penetrates through the shell and is located in the inner cavity of the shell, the middle of the second transverse plate is fixedly connected with the other end of each connecting rod, the limit block is fixedly arranged on each connecting rod and is located in the inner cavity of the shell, one end of the elastic component is fixedly connected with the bottom surface of the inner cavity of the shell.
2. An automatically closable fire window as claimed in claim 1, wherein the resilient member is a coil spring.
3. A self-closing fire window according to any preceding claim, wherein the window frame is made of an aluminium alloy material.
4. An automatically closable fire window according to any of the preceding claims, wherein the outer casing is hollow square tube shaped and made of an aluminium alloy material.
5. The self-closing fire protection window of any one of the preceding claims, wherein the first and second cross panels are parallel to one another.
6. An automatically closable fire window according to any of the preceding claims, wherein the helix angle of the worm is less than the angle of friction of the worm gear contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010756552.0A CN111764806A (en) | 2020-08-02 | 2020-08-02 | Fire window capable of being automatically closed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010756552.0A CN111764806A (en) | 2020-08-02 | 2020-08-02 | Fire window capable of being automatically closed |
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| CN111764806A true CN111764806A (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010756552.0A Withdrawn CN111764806A (en) | 2020-08-02 | 2020-08-02 | Fire window capable of being automatically closed |
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| CN (1) | CN111764806A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114476129A (en) * | 2022-01-05 | 2022-05-13 | 航天科工空间工程发展有限公司 | Space opening and closing mechanism |
| CN115234133A (en) * | 2022-08-02 | 2022-10-25 | 安徽智宬轩门窗系统科技有限公司 | High-ventilation automatic dimming intelligent door and window |
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| CN101432654A (en) * | 2004-08-02 | 2009-05-13 | 富莱克斯公司 | Oreinting arrangement for mirror or light source |
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Application publication date: 20201013 |