CN111852290A - Safe and reliable's fire window - Google Patents
Safe and reliable's fire window Download PDFInfo
- Publication number
- CN111852290A CN111852290A CN202010742353.4A CN202010742353A CN111852290A CN 111852290 A CN111852290 A CN 111852290A CN 202010742353 A CN202010742353 A CN 202010742353A CN 111852290 A CN111852290 A CN 111852290A
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- China
- Prior art keywords
- worm
- window
- shell
- cavity
- elastic film
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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
- E06B5/165—Fireproof windows
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- 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
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- 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
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- 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
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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
- 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
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0498—Worm gearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Special Wing (AREA)
Abstract
The invention provides a safe and reliable fireproof window, which comprises a window frame, window sashes, pulleys, a pull rope, a worm wheel, a worm, a first connecting plate and a transverse plate, the connecting rod, the shell, limit stop, a housing, the ejector pin, the baffle, first elastic film and first cone point thorn, be equipped with first circular breach among the baffle, first elastic film and first circular breach sealing connection, the inner chamber lateral wall sealing connection of baffle and shell, divide into cavity and lower cavity with the inner chamber of shell, it has liquid to go up the cavity packing, be equipped with sealed cavity among the shell, it has paraffin to fill among the sealed cavity, the top surface lateral wall sliding seal of ejector pin and sealed cavity is connected, the one end fixed connection of first cone point thorn and ejector pin, first cone point thorn is located first elastic film under, when paraffin thermal expansion, first elastic film can be punctureed to first cone point thorn. The invention can automatically close the door and window when a fire disaster happens, prevents the fire from spreading, and has simple integral structure, safety and reliability.
Description
Technical Field
The invention relates to the technical field of doors and windows, in particular to a safe and reliable fireproof window.
Background
The fire window is a door and window product that is used for placing indoor intensity of a fire and outwards spreads, and traditional fire window generally closes to needs manual operation and just can reach the fire prevention effect, can not close by oneself when detecting the conflagration automatically.
In order to solve the problem that the traditional fire window cannot be automatically closed when a fire disaster is detected, an intelligent door window appears in the market, the automatic detection and control system is adopted to enable the window sash to be closed when the fire disaster occurs, and then the intelligent door window is high in cost.
Disclosure of Invention
In order to solve the problem that the cost of the existing intelligent door and window is high, the invention provides a safe and reliable fireproof window, which has the following specific technical scheme:
a safe and reliable fireproof window comprises a window frame, window sashes, pulleys and pull ropes, wherein one end of each window sash is hinged to the top end of the window frame through a hinge, grooves are formed in the circumferential surfaces of the pulleys, the pulleys are fixedly arranged on the upper portion of the window frame, one end of each pull rope is fixedly arranged at the other end of each window sash, the pull ropes cross the grooves of the pulleys, the fireproof window further comprises two worm gears, a worm, first connecting plates, transverse plates, connecting rods, a shell, a limit stop, a shell, a push rod, a baffle, a first elastic film and first conical spines, the first connecting plates are parallel to each other, the worm gears are rotatably connected onto the window frame through rotating shafts, the other ends of the pull ropes are fixedly arranged on the rotating shafts, the worm penetrates through the two first connecting plates and is rotatably connected into the two first connecting plates, and the worm is meshed with, one end of each of the two first connecting plates is fixedly connected with two ends of the transverse plate, one end of each connecting rod is fixedly connected with the middle of the transverse plate, a first round notch is formed in each baffle, the edge of each first elastic film is hermetically connected with the corresponding first round notch, the shell is installed on the window frame, the edge of each baffle is hermetically connected with the side wall of the inner cavity of the shell, the inner cavity of the shell is divided into an upper cavity and a lower cavity by the baffles and the first elastic films, the upper cavity and the lower cavity are not communicated, the upper cavity is filled with liquid, the connecting rods are connected with the side wall of the upper cavity in a sliding and sealing manner, the other ends of the connecting rods are located in the upper cavity, the limiting blocks are fixedly installed on the connecting rods and located in the upper cavity, the shell is located in the lower cavity, a sealed cavity is formed in the shell, and, the top rod penetrates through the top surface side wall of the sealed cavity and is in sliding sealing connection with the top surface side wall of the sealed cavity, the first cone spine is fixedly connected with one end of the top rod, the first cone spine is located right below the first elastic film, and when the paraffin expands due to heating, the first cone spine can pierce the first elastic film.
Optionally, the diameter of the ejector rod is smaller than that of the bottom surface of the first conical spike, and the diameter of the bottom surface of the first conical spike is smaller than that of the first elastic film.
Optionally, the lateral surface of the first conical spike is further provided with a plurality of grooves parallel to the generatrix direction of the first conical spike.
Optionally, the window frame, the outer shell and the shell are all made of aluminum alloy materials.
Optionally, the helix angle of the worm is less than the friction angle of the worm gear contact.
Optionally, the liquid is a lubricating grease.
The beneficial effects obtained by the invention comprise: through setting up worm wheel, worm, casing, ejector pin and first cone spine, in case the room takes place the conflagration and makes paraffin thermal expansion produce the volume change, first cone spine punctures first elastic film, can make the worm move down and break away from the worm wheel under self action of gravity, and the casement will fall under its self action of gravity, makes door and window close, blocks indoor outdoor air convection, prevents that the intensity of a fire from spreading. Because the parts such as the worm, the worm wheel, the shell, the paraffin and the like with low cost are adopted, compared with the existing fireproof window which adopts an automatic detection and control system to close the window sash when a fire disaster happens, the fireproof window has simple integral structure and lower cost. In addition, because the fire window does not adopt an automatic detection and control system, the problem of misjudgment caused by temperature data transmission errors or incapability of transmitting temperature data can be avoided, and the fire window is safer and more reliable.
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 the overall structure of a safety and reliable fire window according to an embodiment of the present invention;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
FIG. 3 is a schematic diagram of the structural relationship between the first conical spike, the ejector rod and the housing in the embodiment of the present invention;
FIG. 4 is a schematic diagram showing the structural relationship between the coil spring, the adjusting bolt, the housing and the connecting rod in the embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating the structural relationship between the cylindrical shape memory alloy, the second elastic membrane, and the second conical spike in an embodiment of the present invention;
FIG. 6 is a schematic diagram of the structural relationship between the cylindrical shape memory alloy and the second conical spike in an embodiment of the present invention.
Description of reference numerals:
1. a window frame; 2. a window sash; 3. a pulley; 4. a worm gear; 5. a worm; 6. a first connecting plate; 7. pulling a rope; 8. a housing; 9. a transverse plate; 10. a connecting rod; 11. a limit stop block; 12. a baffle plate; 13. a housing; 14. a first elastic film; 15. a first conical spike; 16. a coil spring; 17. adjusting the bolt; 18. an upper chamber; 19. a lower chamber; 20. a top rod; 21. a cylindrical shape memory alloy; 22. a second elastic film; 23. a second cone spike; 24. the chamber is sealed.
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 safe and reliable fire window, which explains the following embodiments according to the attached drawings:
the first embodiment is as follows:
as shown in fig. 1, 2 and 3, a safe and reliable fire window comprises a window frame 1, a window sash 2, a pulley 3 and a pull rope 7, wherein one end of the window sash 2 is hinged to the top end of the window frame 1 through a hinge, a groove is formed in the circumferential surface of the pulley 3, the pulley 3 is fixedly arranged on the upper portion of the window frame 1, one end of the pull rope 7 is fixedly arranged at the other end of the window sash 2, the pull rope 7 crosses the groove of the pulley 3, the fire window further comprises two worm gears 4, a worm 5, a first connecting plate 6, a transverse plate 9, a connecting rod 10, a shell 8, a limit stop 11, a shell 13, a push rod 20, a baffle 12, a first elastic film 14 and a first conical spine 15, the first connecting plate 6 is provided with two blocks, the first connecting plates 6 are parallel to each other, the worm gears 4 are rotatably connected onto the window frame 1 through a rotating shaft, the worm 5 penetrates through the two first connecting plates 6 and is rotatably connected between the two first connecting plates 6, the worm 5 is meshed with the worm wheel 4, one end of each of the two first connecting plates 6 is fixedly connected with two ends of the transverse plate 9, one end of each of the connecting rods 10 is fixedly connected with the middle of the transverse plate 9, the baffle 12 is provided with a first circular notch, the edge of the first elastic film 14 is hermetically connected with the first circular notch, the shell 8 is installed on the window frame 1, the edge of the baffle 12 is hermetically connected with the side wall of the inner cavity of the shell 8, the baffle 12 and the first elastic film 14 divide the inner cavity of the shell 8 into an upper cavity 18 and a lower cavity 19, the upper cavity 18 is not communicated with the lower cavity 19, and the upper cavity 18 is filled with liquid, such as lubricating grease. Specifically, a sealed chamber 24 (i.e., an upper chamber 18) is formed between the baffle plate 12, the first elastic membrane 14, the connecting rod 10, the limit stop 11 and the inner cavity of the housing 8, and the liquid is filled in the sealed chamber 24. The connecting rod 10 is connected with the side wall of the upper chamber 18 in a sliding and sealing manner, the other end of the connecting rod 10 is located in the upper chamber 18, the limiting block is fixedly mounted on the connecting rod 10 and located in the upper chamber 18, the shell 13 is arranged in the lower chamber 19, the shell 13 is internally provided with a sealing chamber 24, paraffin is filled in the sealing chamber 24, the ejector rod 20 penetrates through the side wall of the top surface of the sealing chamber 24 and is connected with the side wall of the top surface of the sealing chamber 24 in a sliding and sealing manner, the first conical spine 15 is fixedly connected with one end of the ejector rod 20, the first conical spine 15 is located right below the first elastic film 14, and when the paraffin expands due to heating, the first conical spine 15 can pierce the first elastic film 14.
When the pressure is below 0.36MPa and the temperature is increased from 25 ℃ to 61 ℃, the volume expansion rate of the paraffin is gradually increased to 13.2%, and the volume expansion rate of the paraffin at the temperature near the melting point temperature is almost linearly changed with the temperature. Thus, in the present invention, when the temperature of the window frame 1, the housing 8, or the casing 13 is greater than 60 degrees, that is, the paraffin temperature is greater than 60 degrees, it is determined that a fire is occurring in the room. At this time, the paraffin expands to push the ejector rod 20 to move, and further drives the first conical spikes 15 to pierce the first elastic film 14.
As shown in fig. 2 and 3, when a fire is not occurring, the paraffin is not thermally expanded, the first elastic film 14 is not pierced by the first conical spikes 15, and the upper chamber 18 is filled with grease, so that the connecting rod 10, the first connecting plate 6, the cross plate 9, and the worm 5 cannot move downward, and the worm 5 is engaged with the worm wheel 4. The worm 5 is rotated to drive the worm wheel 4 to rotate, and the pull cord 7 is wound around the rotation shaft of the worm wheel 4 to be retracted or released, and the pull cord 7 slides on the pulley 3 to pull the window sash 2 to open or close. When a fire occurs, the indoor temperature rises, high-temperature gas diffuses to the outdoor through the window sash 2, so that the paraffin expands under heat, the volume change is generated, the ejector rod 20 is pushed to move towards the first elastic film 14, the first conical sharp prick 15 approaches to the first elastic film 14 and pierces the first elastic film 14, and liquid in the upper chamber 18 flows into the lower chamber 19 from the gap of the first elastic film 14. At this moment, the connecting rod 10, the transverse plate 9, the first connecting plate 6 and the worm 5 move downwards under the self gravity to separate the worm 5 from the worm wheel 4, the window sash 2 falls and is closed under the self gravity to block the indoor and outdoor air circulation, so that the indoor high-temperature gas diffusion can be prevented, the fire spread can be prevented, and the outdoor air can be prevented from entering the room, so that the indoor flame can be automatically extinguished due to the exhaustion of oxygen.
As shown in fig. 2 again, in order to ensure that the window sash 2 can be opened or closed smoothly by rotating the worm 5 in the case of a fire, the limit stopper 11 should be in contact with the top surface of the upper chamber 18 and the worm wheel 4 should be engaged with the worm 5 once. Specifically, during installation, the worm 5 may be engaged with the worm wheel 4, the limit stopper 11 may be brought into contact with the top surface of the upper chamber 18, and then the upper chamber 18 may be filled with grease. By adjusting the amount of lubricating grease in the upper chamber 18 and the position of the limit stop 11 on the connecting rod 10, the worm 5 and the worm wheel 4 can be meshed together, and the friction force between the worm 5 and the worm wheel 4 is not too large, so that the worm 5 can be smoothly rotated to drive the worm wheel 4 to rotate, and further the opening degree of a door window can be adjusted.
Through setting up worm wheel 4, worm 5, casing 13, ejector pin 20 and first cone spine 15, in case the room takes place the conflagration and makes paraffin thermal expansion produce the volume change, first cone spine 15 punctures first elastic film 14, can make worm 5 move down and break away from worm wheel 4 under its self action of gravity, and casement 2 will fall under its self action of gravity, makes door and window close, blocks indoor outdoor air convection, prevents that the intensity of a fire from spreading. Because the parts such as the worm 5, the worm wheel 4, the shell 13, the paraffin 20 and the like which are low in cost are adopted, compared with the existing fireproof window which adopts an automatic detection and control system to close the window sash 2 when a fire disaster happens, the fireproof window is simple in integral structure and low in cost. In addition, because the fire window does not adopt an automatic detection and control system, the problem of misjudgment caused by temperature data transmission errors or incapability of transmitting temperature data can be avoided.
Example two:
as shown in fig. 1, 2 and 3, a safe and reliable fire window comprises a window frame 1, a window sash 2, a pulley 3 and a pull rope 7, wherein one end of the window sash 2 is hinged to the top end of the window frame 1 through a hinge, a groove is formed in the circumferential surface of the pulley 3, the pulley 3 is fixedly arranged on the upper portion of the window frame 1, one end of the pull rope 7 is fixedly arranged at the other end of the window sash 2, the pull rope 7 crosses the groove of the pulley 3, the fire window further comprises two worm gears 4, a worm 5, a first connecting plate 6, a transverse plate 9, a connecting rod 10, a shell 8, a limit stop 11, a shell 13, a push rod 20, a baffle 12, a first elastic film 14 and a first conical spine 15, the first connecting plate 6 is provided with two blocks, the first connecting plates 6 are parallel to each other, the worm gears 4 are rotatably connected onto the window frame 1 through a rotating shaft, the worm 5 penetrates through the two first connecting plates 6 and is rotatably connected between the two first connecting plates 6, the worm 5 is meshed with the worm wheel 4, one end of each of the two first connecting plates 6 is fixedly connected with two ends of the transverse plate 9, one end of each of the connecting rods 10 is fixedly connected with the middle of the transverse plate 9, the baffle 12 is provided with a first circular notch, the edge of the first elastic film 14 is hermetically connected with the first circular notch, the shell 8 is installed on the window frame 1, the edge of the baffle 12 is hermetically connected with the side wall of the inner cavity of the shell 8, the baffle 12 and the first elastic film 14 divide the inner cavity of the shell 8 into an upper cavity 18 and a lower cavity 19, the upper cavity 18 is not communicated with the lower cavity 19, and the upper cavity 18 is filled with liquid, such as lubricating grease. Specifically, a sealed chamber 24 (i.e., an upper chamber 18) is formed between the baffle plate 12, the first elastic membrane 14, the connecting rod 10, the limit stop 11 and the inner cavity of the housing 8, and the liquid is filled in the sealed chamber 24. The connecting rod 10 is connected with the side wall of the upper chamber 18 in a sliding and sealing manner, the other end of the connecting rod 10 is located in the upper chamber 18, the limiting block is fixedly mounted on the connecting rod 10 and located in the upper chamber 18, the shell 13 is arranged in the lower chamber 19, the shell 13 is internally provided with a sealing chamber 24, paraffin is filled in the sealing chamber 24, the ejector rod 20 penetrates through the side wall of the top surface of the sealing chamber 24 and is connected with the side wall of the top surface of the sealing chamber 24 in a sliding and sealing manner, the first conical spine 15 is fixedly connected with one end of the ejector rod 20, the first conical spine 15 is located right below the first elastic film 14, and when the paraffin expands due to heating, the first conical spine 15 can pierce the first elastic film 14.
When the pressure is below 0.36MPa and the temperature is increased from 25 ℃ to 61 ℃, the volume expansion rate of the paraffin is gradually increased to 13.2%, and the volume expansion rate of the paraffin at the temperature near the melting point temperature is almost linearly changed with the temperature. Thus, in the present invention, when the temperature of the window frame 1, the housing 8, or the casing 13 is greater than 60 degrees, that is, the paraffin temperature is greater than 60 degrees, it is determined that a fire is occurring in the room. At this time, the paraffin expands to push the ejector rod 20 to move, and further drives the first conical spikes 15 to pierce the first elastic film 14.
As shown in fig. 2 and 3, when a fire is not occurring, the paraffin is not thermally expanded, the first elastic film 14 is not pierced by the first conical spikes 15, and the upper chamber 18 is filled with grease, so that the connecting rod 10, the first connecting plate 6, the cross plate 9, and the worm 5 cannot move downward, and the worm 5 is engaged with the worm wheel 4. The worm 5 is rotated to drive the worm wheel 4 to rotate, and the pull cord 7 is wound around the rotation shaft of the worm wheel 4 to be retracted or released, and the pull cord 7 slides on the pulley 3 to pull the window sash 2 to open or close. When a fire occurs, the indoor temperature rises, high-temperature gas diffuses to the outdoor through the window sash 2, so that the paraffin expands under heat, the volume change is generated, the ejector rod 20 is pushed to move towards the first elastic film 14, the first conical sharp prick 15 approaches to the first elastic film 14 and pierces the first elastic film 14, and liquid in the upper chamber 18 flows into the lower chamber 19 from the gap of the first elastic film 14. At this moment, the connecting rod 10, the transverse plate 9, the first connecting plate 6 and the worm 5 move downwards under the self gravity to separate the worm 5 from the worm wheel 4, the window sash 2 falls and is closed under the self gravity to block the indoor and outdoor air circulation, so that the indoor high-temperature gas diffusion can be prevented, the fire spread can be prevented, and the outdoor air can be prevented from entering the room, so that the indoor flame can be automatically extinguished due to the exhaustion of oxygen.
As shown in fig. 2 again, in order to ensure that the window sash 2 can be opened or closed smoothly by rotating the worm 5 in the case of a fire, the limit stopper 11 should be in contact with the top surface of the upper chamber 18 and the worm wheel 4 should be engaged with the worm 5 once. Specifically, during installation, the worm 5 may be engaged with the worm wheel 4, the limit stopper 11 may be brought into contact with the top surface of the upper chamber 18, and then the upper chamber 18 may be filled with grease. By adjusting the amount of lubricating grease in the upper chamber 18 and the position of the limit stop 11 on the connecting rod 10, the worm 5 and the worm wheel 4 can be meshed together, and the friction force between the worm 5 and the worm wheel 4 is not too large, so that the worm 5 can be smoothly rotated to drive the worm wheel 4 to rotate, and further the opening degree of a door window can be adjusted.
Through setting up worm wheel 4, worm 5, casing 13, ejector pin 20 and first cone spine 15, in case the room takes place the conflagration and makes paraffin thermal expansion produce the volume change, first cone spine 15 punctures first elastic film 14, can make worm 5 move down and break away from worm wheel 4 under its self action of gravity, and casement 2 will fall under its self action of gravity, makes door and window close, blocks indoor outdoor air convection, prevents that the intensity of a fire from spreading. Because the parts such as the worm 5, the worm wheel 4, the shell 13, the paraffin 20 and the like which are low in cost are adopted, compared with the existing fireproof window which adopts an automatic detection and control system to close the window sash 2 when a fire disaster happens, the fireproof window is simple in integral structure and low in cost. In addition, because the fire window does not adopt an automatic detection and control system, the problem of misjudgment caused by temperature data transmission errors or incapability of transmitting temperature data can be avoided.
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 the worm wheel 4 can only be driven by the worm 5. When a fire disaster does not happen, the window sash 2 can be conveniently opened to a certain angle by rotating the worm 5, so that the worm wheel 4 cannot rotate under the self gravity of the window sash 2, and the worm 5 is driven to rotate, so that the window sash 2 is automatically closed under the self gravity.
In some embodiments, as shown in FIG. 3, the diameter of the stem 20 is smaller than the diameter of the bottom surface of the first conical spike 15, and the diameter of the bottom surface of the first conical spike 15 is smaller than the diameter of the first elastic membrane 14. Thus, when the first conical spike 15 pierces the first elastic membrane 14 and completely enters the upper chamber 18, the liquid in the upper chamber 18 can smoothly flow out from the split of the first elastic membrane 14, so that the worm 5 and the worm wheel 4 can smoothly separate from each other. Furthermore, the lateral surface of the first conical spike 15 is further provided with a plurality of grooves parallel to the generatrix direction thereof, so that when the first conical spike 15 pierces the first elastic membrane 14, the lubricating grease in the upper chamber 18 can flow into the lower chamber 19 through the grooves. The window frame 1, the first connecting plate 6, the housing 8 and the casing 13 are all made of aluminum alloy materials. In this way, the temperature of the window frame 1 transmitted to the cylinder 13 and the thermal expansion substance can be sensed better, and the fire-proof performance of the fire-proof window can be improved.
Example three:
as shown in fig. 1, 2 and 3, a safe and reliable fire window comprises a window frame 1, a window sash 2, a pulley 3 and a pull rope 7, wherein one end of the window sash 2 is hinged to the top end of the window frame 1 through a hinge, a groove is formed in the circumferential surface of the pulley 3, the pulley 3 is fixedly arranged on the upper portion of the window frame 1, one end of the pull rope 7 is fixedly arranged at the other end of the window sash 2, the pull rope 7 crosses the groove of the pulley 3, the fire window further comprises two worm gears 4, a worm 5, a first connecting plate 6, a transverse plate 9, a connecting rod 10, a shell 8, a limit stop 11, a shell 13, a push rod 20, a baffle 12, a first elastic film 14 and a first conical spine 15, the first connecting plate 6 is provided with two blocks, the first connecting plates 6 are parallel to each other, the worm gears 4 are rotatably connected onto the window frame 1 through a rotating shaft, the worm 5 penetrates through the two first connecting plates 6 and is rotatably connected between the two first connecting plates 6, the worm 5 is meshed with the worm wheel 4, one end of each of the two first connecting plates 6 is fixedly connected with two ends of the transverse plate 9, one end of each of the connecting rods 10 is fixedly connected with the middle of the transverse plate 9, the baffle 12 is provided with a first circular notch, the edge of the first elastic film 14 is hermetically connected with the first circular notch, the shell 8 is installed on the window frame 1, the edge of the baffle 12 is hermetically connected with the side wall of the inner cavity of the shell 8, the baffle 12 and the first elastic film 14 divide the inner cavity of the shell 8 into an upper cavity 18 and a lower cavity 19, the upper cavity 18 is not communicated with the lower cavity 19, and the upper cavity 18 is filled with liquid, such as lubricating grease. Specifically, a sealed chamber 24 (i.e., an upper chamber 18) is formed between the baffle plate 12, the first elastic membrane 14, the connecting rod 10, the limit stop 11 and the inner cavity of the housing 8, and the liquid is filled in the sealed chamber 24. The connecting rod 10 is connected with the side wall of the upper chamber 18 in a sliding and sealing manner, the other end of the connecting rod 10 is located in the upper chamber 18, the limiting block is fixedly mounted on the connecting rod 10 and located in the upper chamber 18, the shell 13 is arranged in the lower chamber 19, the shell 13 is internally provided with a sealing chamber 24, paraffin is filled in the sealing chamber 24, the ejector rod 20 penetrates through the side wall of the top surface of the sealing chamber 24 and is connected with the side wall of the top surface of the sealing chamber 24 in a sliding and sealing manner, the first conical spine 15 is fixedly connected with one end of the ejector rod 20, the first conical spine 15 is located right below the first elastic film 14, and when the paraffin expands due to heating, the first conical spine 15 can pierce the first elastic film 14.
When the pressure is below 0.36MPa and the temperature is increased from 25 ℃ to 61 ℃, the volume expansion rate of the paraffin is gradually increased to 13.2%, and the volume expansion rate of the paraffin at the temperature near the melting point temperature is almost linearly changed with the temperature. Thus, in the present invention, when the temperature of the window frame 1, the housing 8, or the casing 13 is greater than 60 degrees, that is, the paraffin temperature is greater than 60 degrees, it is determined that a fire is occurring in the room. At this time, the paraffin expands to push the ejector rod 20 to move, and further drives the first conical spikes 15 to pierce the first elastic film 14.
As shown in fig. 2 and 3, when a fire is not occurring, the paraffin is not thermally expanded, the first elastic film 14 is not pierced by the first conical spikes 15, and the upper chamber 18 is filled with grease, so that the connecting rod 10, the first connecting plate 6, the cross plate 9, and the worm 5 cannot move downward, and the worm 5 is engaged with the worm wheel 4. The worm 5 is rotated to drive the worm wheel 4 to rotate, and the pull cord 7 is wound around the rotation shaft of the worm wheel 4 to be retracted or released, and the pull cord 7 slides on the pulley 3 to pull the window sash 2 to open or close. When a fire occurs, the indoor temperature rises, high-temperature gas diffuses to the outdoor through the window sash 2, so that the paraffin expands under heat, the volume change is generated, the ejector rod 20 is pushed to move towards the first elastic film 14, the first conical sharp prick 15 approaches to the first elastic film 14 and pierces the first elastic film 14, and liquid in the upper chamber 18 flows into the lower chamber 19 from the gap of the first elastic film 14. At this moment, the connecting rod 10, the transverse plate 9, the first connecting plate 6 and the worm 5 move downwards under the self gravity to separate the worm 5 from the worm wheel 4, the window sash 2 falls and is closed under the self gravity to block the indoor and outdoor air circulation, so that the indoor high-temperature gas diffusion can be prevented, the fire spread can be prevented, and the outdoor air can be prevented from entering the room, so that the indoor flame can be automatically extinguished due to the exhaustion of oxygen.
As shown in fig. 2 again, in order to ensure that the window sash 2 can be opened or closed smoothly by rotating the worm 5 in the case of a fire, the limit stopper 11 should be in contact with the top surface of the upper chamber 18 and the worm wheel 4 should be engaged with the worm 5 once. Specifically, during installation, the worm 5 may be engaged with the worm wheel 4, the limit stopper 11 may be brought into contact with the top surface of the upper chamber 18, and then the upper chamber 18 may be filled with grease. By adjusting the amount of lubricating grease in the upper chamber 18 and the position of the limit stop 11 on the connecting rod 10, the worm 5 and the worm wheel 4 can be meshed together, and the friction force between the worm 5 and the worm wheel 4 is not too large, so that the worm 5 can be smoothly rotated to drive the worm wheel 4 to rotate, and further the opening degree of a door window can be adjusted.
Through setting up worm wheel 4, worm 5, casing 13, ejector pin 20 and first cone spine 15, in case the room takes place the conflagration and makes paraffin thermal expansion produce the volume change, first cone spine 15 punctures first elastic film 14, can make worm 5 move down and break away from worm wheel 4 under its self action of gravity, and casement 2 will fall under its self action of gravity, makes door and window close, blocks indoor outdoor air convection, prevents that the intensity of a fire from spreading. Because the parts such as the worm 5, the worm wheel 4, the shell 13, the paraffin 20 and the like which are low in cost are adopted, compared with the existing fireproof window which adopts an automatic detection and control system to close the window sash 2 when a fire disaster happens, the fireproof window is simple in integral structure and low in cost. In addition, because the fire window does not adopt an automatic detection and control system, the problem of misjudgment caused by temperature data transmission errors or incapability of transmitting temperature data can be avoided.
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 the worm wheel 4 can only be driven by the worm 5. When a fire disaster does not happen, the window sash 2 can be conveniently opened to a certain angle by rotating the worm 5, so that the worm wheel 4 cannot rotate under the self gravity of the window sash 2, and the worm 5 is driven to rotate, so that the window sash 2 is automatically closed under the self gravity.
In some embodiments, as shown in FIG. 3, the diameter of the stem 20 is smaller than the diameter of the bottom surface of the first conical spike 15, and the diameter of the bottom surface of the first conical spike 15 is smaller than the diameter of the first elastic membrane 14. Thus, when the first conical spike 15 pierces the first elastic membrane 14 and completely enters the upper chamber 18, the liquid in the upper chamber 18 can smoothly flow out from the split of the first elastic membrane 14, so that the worm 5 and the worm wheel 4 can smoothly separate from each other. Furthermore, the lateral surface of the first conical spike 15 is further provided with a plurality of grooves parallel to the generatrix direction thereof, so that when the first conical spike 15 pierces the first elastic membrane 14, the lubricating grease in the upper chamber 18 can flow into the lower chamber 19 through the grooves. The window frame 1, the first connecting plate 6, the housing 8 and the casing 13 are all made of aluminum alloy materials. In this way, the temperature of the window frame 1 transmitted to the cylinder 13 and the thermal expansion substance can be sensed better, and the fire-proof performance of the fire-proof window can be improved.
In this example, as shown in fig. 4, the protection device further includes a coil spring 16, the coil spring 16 is disposed in the upper chamber 18 and one end of the coil spring 16 is fixedly connected to the other end of the connecting rod 10, and the other end of the coil spring 16 is fixedly connected to the baffle 12; in the case of a non-fire, the coil spring 16 is in an extended state and the limit stopper 11 is in contact with the top surface of the upper chamber 18, and the worm 5 is engaged with the worm wheel 4. Thus, by means of the elastic force stored by the coil spring 16 when no fire occurs, when a fire occurs, the spike portion 15 pierces the first elastic membrane 14, the lubricating grease flows from the upper chamber 18 to the lower chamber 19, and the connecting rod 10, the cross plate 9, the first connecting plate 6 and the worm 5 move downward under the elastic force of the coil spring 16, so that the worm 5 and the worm wheel 4 can be smoothly separated. The first elastic film 14 is not located right opposite to the coil spring 16, so that the influence of the coil spring 16 on the first conical spikes 15 can be avoided, and the first conical spikes 15 can smoothly puncture the first elastic film 14.
In this example, as shown in fig. 4, the protection device further comprises an adjusting bolt 17, the adjusting bolt 17 is in threaded connection with the side wall of the upper chamber 18, one end of the adjusting bolt is located in the upper chamber 18, and the other end of the adjusting bolt is located outside the housing 8. Thus, by rotating the adjusting bolt 17, the position of the upper chamber 18 at one end of the adjusting bolt 17 can be adjusted, so that the positions of the connecting rod 10, the transverse plate 9, the first connecting plate 6 and the worm 5 can be well adjusted, and the friction force between the worm 5 and the worm wheel 4 when a fire disaster does not happen can be adjusted.
In the present invention, the dimensions of the first conical spike 15, the housing 13, the sealing chamber 24, and the positional relationship between the sealing chamber 24 and the plunger 20 can be selected according to the positional distance between the first conical spike 15 and the first elastic film 14 when no fire occurs, and it is assumed that the first conical spike 15 can pierce the first elastic film 14 and make the lubricating grease in the upper chamber flow out smoothly, which is not described herein again.
Example four:
as shown in fig. 1, 2 and 3, a safe and reliable fire window comprises a window frame 1, a window sash 2, a pulley 3 and a pull rope 7, wherein one end of the window sash 2 is hinged to the top end of the window frame 1 through a hinge, a groove is formed in the circumferential surface of the pulley 3, the pulley 3 is fixedly arranged on the upper portion of the window frame 1, one end of the pull rope 7 is fixedly arranged at the other end of the window sash 2, the pull rope 7 crosses the groove of the pulley 3, the fire window further comprises two worm gears 4, a worm 5, a first connecting plate 6, a transverse plate 9, a connecting rod 10, a shell 8, a limit stop 11, a shell 13, a push rod 20, a baffle 12, a first elastic film 14 and a first conical spine 15, the first connecting plate 6 is provided with two blocks, the first connecting plates 6 are parallel to each other, the worm gears 4 are rotatably connected onto the window frame 1 through a rotating shaft, the worm 5 penetrates through the two first connecting plates 6 and is rotatably connected between the two first connecting plates 6, the worm 5 is meshed with the worm wheel 4, one end of each of the two first connecting plates 6 is fixedly connected with two ends of the transverse plate 9, one end of each of the connecting rods 10 is fixedly connected with the middle of the transverse plate 9, the baffle 12 is provided with a first circular notch, the edge of the first elastic film 14 is hermetically connected with the first circular notch, the shell 8 is installed on the window frame 1, the edge of the baffle 12 is hermetically connected with the side wall of the inner cavity of the shell 8, the baffle 12 and the first elastic film 14 divide the inner cavity of the shell 8 into an upper cavity 18 and a lower cavity 19, the upper cavity 18 is not communicated with the lower cavity 19, and the upper cavity 18 is filled with liquid, such as lubricating grease. Specifically, a sealed chamber 24 (i.e., an upper chamber 18) is formed between the baffle plate 12, the first elastic membrane 14, the connecting rod 10, the limit stop 11 and the inner cavity of the housing 8, and the liquid is filled in the sealed chamber 24. The connecting rod 10 is connected with the side wall of the upper chamber 18 in a sliding and sealing manner, the other end of the connecting rod 10 is located in the upper chamber 18, the limiting block is fixedly mounted on the connecting rod 10 and located in the upper chamber 18, the shell 13 is arranged in the lower chamber 19, the shell 13 is internally provided with a sealing chamber 24, paraffin is filled in the sealing chamber 24, the ejector rod 20 penetrates through the side wall of the top surface of the sealing chamber 24 and is connected with the side wall of the top surface of the sealing chamber 24 in a sliding and sealing manner, the first conical spine 15 is fixedly connected with one end of the ejector rod 20, the first conical spine 15 is located right below the first elastic film 14, and when the paraffin expands due to heating, the first conical spine 15 can pierce the first elastic film 14.
When the pressure is below 0.36MPa and the temperature is increased from 25 ℃ to 61 ℃, the volume expansion rate of the paraffin is gradually increased to 13.2%, and the volume expansion rate of the paraffin at the temperature near the melting point temperature is almost linearly changed with the temperature. Thus, in the present invention, when the temperature of the window frame 1, the housing 8, or the casing 13 is greater than 60 degrees, that is, the paraffin temperature is greater than 60 degrees, it is determined that a fire is occurring in the room. At this time, the paraffin expands to push the ejector rod 20 to move, and further drives the first conical spikes 15 to pierce the first elastic film 14.
As shown in fig. 2 and 3, when a fire is not occurring, the paraffin is not thermally expanded, the first elastic film 14 is not pierced by the first conical spikes 15, and the upper chamber 18 is filled with grease, so that the connecting rod 10, the first connecting plate 6, the cross plate 9, and the worm 5 cannot move downward, and the worm 5 is engaged with the worm wheel 4. The worm 5 is rotated to drive the worm wheel 4 to rotate, and the pull cord 7 is wound around the rotation shaft of the worm wheel 4 to be retracted or released, and the pull cord 7 slides on the pulley 3 to pull the window sash 2 to open or close. When a fire occurs, the indoor temperature rises, high-temperature gas diffuses to the outdoor through the window sash 2, so that the paraffin expands under heat, the volume change is generated, the ejector rod 20 is pushed to move towards the first elastic film 14, the first conical sharp prick 15 approaches to the first elastic film 14 and pierces the first elastic film 14, and liquid in the upper chamber 18 flows into the lower chamber 19 from the gap of the first elastic film 14. At this moment, the connecting rod 10, the transverse plate 9, the first connecting plate 6 and the worm 5 move downwards under the self gravity to separate the worm 5 from the worm wheel 4, the window sash 2 falls and is closed under the self gravity to block the indoor and outdoor air circulation, so that the indoor high-temperature gas diffusion can be prevented, the fire spread can be prevented, and the outdoor air can be prevented from entering the room, so that the indoor flame can be automatically extinguished due to the exhaustion of oxygen.
As shown in fig. 2 again, in order to ensure that the window sash 2 can be opened or closed smoothly by rotating the worm 5 in the case of a fire, the limit stopper 11 should be in contact with the top surface of the upper chamber 18 and the worm wheel 4 should be engaged with the worm 5 once. Specifically, during installation, the worm 5 may be engaged with the worm wheel 4, the limit stopper 11 may be brought into contact with the top surface of the upper chamber 18, and then the upper chamber 18 may be filled with grease. By adjusting the amount of lubricating grease in the upper chamber 18 and the position of the limit stop 11 on the connecting rod 10, the worm 5 and the worm wheel 4 can be meshed together, and the friction force between the worm 5 and the worm wheel 4 is not too large, so that the worm 5 can be smoothly rotated to drive the worm wheel 4 to rotate, and further the opening degree of a door window can be adjusted.
Through setting up worm wheel 4, worm 5, casing 13, ejector pin 20 and first cone spine 15, in case the room takes place the conflagration and makes paraffin thermal expansion produce the volume change, first cone spine 15 punctures first elastic film 14, can make worm 5 move down and break away from worm wheel 4 under its self action of gravity, and casement 2 will fall under its self action of gravity, makes door and window close, blocks indoor outdoor air convection, prevents that the intensity of a fire from spreading. Because the parts such as the worm 5, the worm wheel 4, the shell 13, the paraffin 20 and the like which are low in cost are adopted, compared with the existing fireproof window which adopts an automatic detection and control system to close the window sash 2 when a fire disaster happens, the fireproof window is simple in integral structure and low in cost. In addition, because the fire window does not adopt an automatic detection and control system, the problem of misjudgment caused by temperature data transmission errors or incapability of transmitting temperature data can be avoided.
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 the worm wheel 4 can only be driven by the worm 5. When a fire disaster does not happen, the window sash 2 can be conveniently opened to a certain angle by rotating the worm 5, so that the worm wheel 4 cannot rotate under the self gravity of the window sash 2, and the worm 5 is driven to rotate, so that the window sash 2 is automatically closed under the self gravity.
In some embodiments, as shown in FIG. 3, the diameter of the stem 20 is smaller than the diameter of the bottom surface of the first conical spike 15, and the diameter of the bottom surface of the first conical spike 15 is smaller than the diameter of the first elastic membrane 14. Thus, when the first conical spike 15 pierces the first elastic membrane 14 and completely enters the upper chamber 18, the liquid in the upper chamber 18 can smoothly flow out from the split of the first elastic membrane 14, so that the worm 5 and the worm wheel 4 can smoothly separate from each other. Furthermore, the lateral surface of the first conical spike 15 is further provided with a plurality of grooves parallel to the generatrix direction thereof, so that when the first conical spike 15 pierces the first elastic membrane 14, the lubricating grease in the upper chamber 18 can flow into the lower chamber 19 through the grooves. The window frame 1, the first connecting plate 6, the housing 8 and the casing 13 are all made of aluminum alloy materials. In this way, the temperature of the window frame 1 transmitted to the cylinder 13 and the thermal expansion substance can be sensed better, and the fire-proof performance of the fire-proof window can be improved.
In this example, as shown in fig. 4, the protection device further includes a coil spring 16, the coil spring 16 is disposed in the upper chamber 18 and one end of the coil spring 16 is fixedly connected to the other end of the connecting rod 10, and the other end of the coil spring 16 is fixedly connected to the baffle 12; in the case of a non-fire, the coil spring 16 is in an extended state and the limit stopper 11 is in contact with the top surface of the upper chamber 18, and the worm 5 is engaged with the worm wheel 4. Thus, by means of the elastic force stored by the coil spring 16 when no fire occurs, when a fire occurs, the spike portion 15 pierces the first elastic membrane 14, the lubricating grease flows from the upper chamber 18 to the lower chamber 19, and the connecting rod 10, the cross plate 9, the first connecting plate 6 and the worm 5 move downward under the elastic force of the coil spring 16, so that the worm 5 and the worm wheel 4 can be smoothly separated. The first elastic film 14 is not located right opposite to the coil spring 16, so that the influence of the coil spring 16 on the first conical spikes 15 can be avoided, and the first conical spikes 15 can smoothly puncture the first elastic film 14.
In this example, as shown in fig. 4, the protection device further comprises an adjusting bolt 17, the adjusting bolt 17 is in threaded connection with the side wall of the upper chamber 18, one end of the adjusting bolt is located in the upper chamber 18, and the other end of the adjusting bolt is located outside the housing 8. Thus, by rotating the adjusting bolt 17, the position of the upper chamber 18 at one end of the adjusting bolt 17 can be adjusted, so that the positions of the connecting rod 10, the transverse plate 9, the first connecting plate 6 and the worm 5 can be well adjusted, and the friction force between the worm 5 and the worm wheel 4 when a fire disaster does not happen can be adjusted.
In the present invention, the dimensions of the first conical spike 15, the housing 13, the sealing chamber 24, and the positional relationship between the sealing chamber 24 and the plunger 20 can be selected according to the positional distance between the first conical spike 15 and the first elastic film 14 when no fire occurs, and it is assumed that the first conical spike 15 can pierce the first elastic film 14 and make the lubricating grease in the upper chamber flow out smoothly, which is not described herein again.
In some embodiments, as shown in fig. 5 and 6, in order to provide double protection for the fire window, the fire window further comprises a cylindrical shape memory alloy 21, a second elastic film 22 and a second conical spike 23, wherein the cylindrical shape memory alloy 21 has the characteristic of elongating along the axial direction thereof along with the temperature increase thereof, and the phase transition temperature thereof is more than 200 degrees and less than 300 degrees, so as to prevent the first conical spike 15 from puncturing the first elastic film 14 due to the paraffin evaporation in the sealed chamber 24, and the fire window cannot be closed in time when a fire occurs. One end of the cylindrical shape memory alloy 21 is fixedly connected with the bottom surface of the lower chamber 19, the other end of the cylindrical shape memory alloy is fixedly connected with the bottom surface of the second conical spine 23, a second round notch is arranged in the baffle 12, and the edge of the second elastic film 22 is hermetically connected with the second round notch. When a fire breaks out in a room and the temperature of the cylindrical shape memory alloy 21 is higher than 200 ℃, the cylindrical shape memory alloy extends along the axial direction and enables the second conical spikes 23 to puncture the second elastic film 22, lubricating grease in the upper chamber 18 flows into the lower chamber 19 at the moment, the worm 5 is separated from the worm wheel 4 under the elastic force of the spiral spring 16, the window is closed, and air circulation outside the chamber is blocked, so that the fire spread is prevented. The cylindrical shape memory alloy 21, the second elastic film 22 and the second conical spikes 23 are arranged to provide double protection for the fire window, so that the fire window can be closed in case of fire. The diameter of the cylindrical shape memory alloy 21 is smaller than the diameter of the bottom surface of the second conical spike 23, so that when the second conical spike 23 pierces the second elastic film 22 and completely enters the upper chamber 18, the liquid in the upper chamber 18 can smoothly flow out from the gap of the second elastic film 22, and the worm 5 and the worm wheel 4 can smoothly separate from each other. Furthermore, the lateral surface of the second conical spike 23 is further provided with a plurality of grooves parallel to the generatrix direction thereof, so that when the second conical spike 23 pierces the second elastic membrane 22, the lubricating grease in the upper chamber 18 can flow into the lower chamber 19 through the grooves.
In summary, the safe and reliable fire window disclosed by the invention has the following beneficial technical effects: through setting up worm wheel, worm, casing, ejector pin and first cone spine, in case the room takes place the conflagration and makes paraffin thermal expansion produce the volume change, first cone spine punctures first elastic film, can make the worm move down and break away from the worm wheel under self action of gravity, and the casement will fall under its self action of gravity, makes door and window close, blocks indoor outdoor air convection, prevents that the intensity of a fire from spreading. Because the parts such as the worm, the worm wheel, the shell, the paraffin and the like with low cost are adopted, compared with the existing fireproof window which adopts an automatic detection and control system to close the window sash when a fire disaster happens, the fireproof window has simple integral structure and lower cost. In addition, because the fire window does not adopt an automatic detection and control system, the problem of misjudgment caused by temperature data transmission errors or incapability of transmitting temperature data can be avoided, and the fire window is safer and more reliable.
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. A safe and reliable fireproof window comprises a window frame, window sashes, pulleys and pull ropes, wherein one end of each window sash is hinged to the top end of the window frame through a hinge, grooves are formed in the circumferential surfaces of the pulleys, the pulleys are fixedly arranged on the upper portion of the window frame, one end of each pull rope is fixedly arranged at the other end of each window sash, the pull ropes cross the grooves of the pulleys, the fireproof window is characterized by further comprising two worm gears, a worm, first connecting plates, transverse plates, connecting rods, a shell, limit stops, a shell, ejector rods, baffle plates, first elastic films and first conical spines, the two first connecting plates are parallel to each other, the worm gears are rotatably connected onto the window frame through rotating shafts, the other ends of the pull ropes are fixedly arranged on the rotating shafts, the worm penetrates through the two first connecting plates and is rotatably connected into the two first connecting plates, and the worm is meshed with the worm gears, one end of each of the two first connecting plates is fixedly connected with two ends of the transverse plate, one end of each connecting rod is fixedly connected with the middle of the transverse plate, a first round notch is formed in each baffle, the edge of each first elastic film is hermetically connected with the corresponding first round notch, the shell is installed on the window frame, the edge of each baffle is hermetically connected with the side wall of the inner cavity of the shell, the inner cavity of the shell is divided into an upper cavity and a lower cavity by the baffles and the first elastic films, the upper cavity and the lower cavity are not communicated, the upper cavity is filled with liquid, the connecting rods are connected with the side wall of the upper cavity in a sliding and sealing manner, the other ends of the connecting rods are located in the upper cavity, the limiting blocks are fixedly installed on the connecting rods and located in the upper cavity, the shell is located in the lower cavity, a sealed cavity is formed in the shell, and, the top rod penetrates through the top surface side wall of the sealed cavity and is in sliding sealing connection with the top surface side wall of the sealed cavity, the first cone spine is fixedly connected with one end of the top rod, the first cone spine is located right below the first elastic film, and when the paraffin expands due to heating, the first cone spine can pierce the first elastic film.
2. A safety and security fire protection window as claimed in claim 1, wherein the diameter of the roof rod is smaller than the diameter of the base of the first conical spike, the diameter of the base of the first conical spike being smaller than the diameter of the first flexible membrane.
3. A fire window as claimed in any preceding claim, wherein the first conical spike has a plurality of grooves formed in the side surface thereof parallel to the generatrix direction.
4. A fire window according to any of the preceding claims, wherein the frame, the casing and the housing are made of aluminium alloy.
5. A safety fire window according to any preceding claim, wherein the helix angle of the worm is less than the angle of friction of the worm gear contact.
6. A safety and security fire protection window according to any of the preceding claims, wherein said liquid is a grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010742353.4A CN111852290A (en) | 2020-08-02 | 2020-08-02 | Safe and reliable's fire window |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010742353.4A CN111852290A (en) | 2020-08-02 | 2020-08-02 | Safe and reliable's fire window |
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| CN111852290A true CN111852290A (en) | 2020-10-30 |
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| CN (1) | CN111852290A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503380A (en) * | 2020-11-26 | 2021-03-16 | 苏忠楠 | Lubricating device for travel mechanism of bridge crane |
-
2020
- 2020-08-02 CN CN202010742353.4A patent/CN111852290A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503380A (en) * | 2020-11-26 | 2021-03-16 | 苏忠楠 | Lubricating device for travel mechanism of bridge crane |
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