CN212898069U - Movable fire window opening and closing device - Google Patents

Abstract

The utility model provides a movable fire window opening and closing device, which comprises a fixed arm, a movable arm and a connecting rod, wherein the movable arm is internally provided with a rotary driving device and an energy storage reset device which are matched with each other, the fixed arm is provided with a slide block, one end of the connecting rod is connected with the rotary driving device, and the other end of the connecting rod is hinged with the slide block; an elastic locking mechanism for locking the sliding block is arranged in the fixed arm, and an unlocking device for unlocking the elastic locking mechanism when a fire disaster happens is also arranged in the fixed arm; when the utility model is used, the energy storage and restoration device is stored by the rotating driving device in the rotating process of the window sash; the stable opening of the window sash is ensured through the elastic locking mechanism; when a fire disaster happens, the elastic locking mechanism is unlocked through the unlocking device, and then the energy storage reset device is released to realize the automatic closing of the window sash; the utility model discloses when satisfying the basic fire prevention requirement of fire prevention window, realized the movable of fire prevention window and involved, improved the ventilation and the daylighting requirement of fire prevention window.

Description

Movable fire window opening and closing device

Technical Field

The utility model relates to a building fire-proof equipment technical field, concretely relates to open dress formula fire window opens and close ware.

Background

The fireproof window is a window which can meet the requirements of fire resistance stability and fire resistance integrity together with a frame within a certain time; when lighting and ventilation are needed on two building outer walls with insufficient fireproof space or between spaces separated by a fireproof wall, fireproof windows are adopted; the fireproof window sold in China is more in a fixed structure, can meet the fireproof requirement, but cannot meet the ventilation and lighting problems of buildings, and is poor in comfort in use.

SUMMERY OF THE UTILITY MODEL

To the poor defect of fire window ventilation and daylighting effect that exists among the prior art, do the utility model discloses a movable fire window headstock gear, adopt the headstock gear can normally open or close when daily use, satisfies ventilation and daylighting demand, and can in time self-closing when the conflagration takes place, plays the fire prevention, thermal-insulated purpose.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a movable fire window opening and closing device comprises a fixed arm, a movable arm and a connecting rod, wherein a rotation driving device and an energy storage reset device which are matched with each other are arranged in the movable arm; an elastic locking mechanism for locking the sliding block is arranged in the fixed arm, and an unlocking device for unlocking the elastic locking mechanism when a fire disaster happens is further arranged in the fixed arm.

Preferably, the rotary driving device comprises a gear and a rack which are matched with each other, the gear is connected with the connecting rod, and the energy storage resetting device comprises an energy storage spring, a fixed block and a movable block; the movable block is fixedly connected with the rack, and the side faces of the movable block and the fixed block are abutted against two ends of the energy storage spring.

Preferably, the gear comprises a connecting shaft, a first driving gear and a second driving gear are respectively arranged at the upper end and the lower end of the connecting shaft, the first driving gear is meshed with the rack, and a gear hole matched with the second driving gear is formed in the connecting rod.

Preferably, the movable arm is internally and fixedly provided with a gear seat, and the gear is rotationally connected with the gear seat through a ball arranged at the top.

Preferably, the elastic locking mechanism comprises a fixed seat, a rocker and a limiting plate, the rocker and the limiting plate are hinged with the fixed seat through a connecting pin, a locking hole and a locking ball which are matched with each other are arranged between one end of the rocker and the sliding block, and a return spring is arranged between the other end of the rocker and the fixed seat; one end of the limiting plate is abutted against the warping plate, and the other end of the limiting plate is connected with the unlocking device.

Preferably, the unlocking device comprises a glass ball and a torsion spring, the glass ball is in a compressed state by squeezing the torsion spring, and a thrust plate for fixing the glass ball is arranged on the fixed seat; the torsion spring is simultaneously abutted against the limiting plate.

Preferably, the unlocking device comprises a microswitch and an electromagnetic switch, a pull rod is hinged between the electromagnetic switch and the limiting plate, and a driving plate matched with the microswitch is arranged on the rocker.

Preferably, the limiting plate tail end is provided with the board that resets, it is provided with reset spring to reset between board and the fixing base.

Preferably, the rocker is provided with a limit bolt for limiting the position of the return spring.

Preferably, the front end of the rocker is provided with a guide plate which inclines downwards, and the bottom surface of the sliding block inclines upwards to be provided with a corresponding guide surface.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model comprises a fixed arm, a movable arm and a connecting rod, wherein the movable arm is internally provided with a rotary driving device and an energy storage reset device which are matched with each other, the fixed arm is provided with a sliding block in a sliding way, one end of the connecting rod is connected with the rotary driving device, and the other end of the connecting rod is hinged with the sliding block; an elastic locking mechanism for locking the sliding block is arranged in the fixed arm, and an unlocking device for controlling the opening and closing state of the elastic locking mechanism is also arranged in the fixed arm; the fixed arm of the utility model is arranged on the window frame of the fireproof window, the movable arm is arranged on the window sash of the fireproof window, when the window sash is opened, the window sash drives the sliding block to slide through the connecting rod, and simultaneously, the connecting rod rotates due to the angle change between the window frame and the window sash, thereby driving the rotary driving device and further storing energy for the energy storage resetting device through the rotary driving device; meanwhile, after the sliding block slides in place, the elastic locking mechanism locks the sliding block, so that the energy storage reset device is always in an energy storage state, the fireproof window can be stably opened, the ventilation and lighting requirements of the fireproof window are met, when the fireproof window needs to be closed, the elastic locking mechanism is manually stirred or the opened window sash is pulled to achieve unlocking, at the moment, the accumulated kinetic energy is released by the energy storage reset device, the sliding block is driven to move in the reverse direction, and the window sash is pulled back through the pull rod to achieve closing of the window sash; when a fire disaster happens, the unlocking device is automatically started, so that the elastic locking mechanism is released, the energy storage reset device is automatically unlocked, the fireproof window sash is automatically closed, and the heat insulation and fireproof effects are realized; compared with the prior art, the utility model discloses an self-closing of fire prevention window when the conflagration to realized the ventilation and the daylighting of fire prevention window under the prerequisite that satisfies the fire prevention requirement.

2. The utility model discloses a rotary driving device comprises a gear and a rack which are matched with each other, the gear is connected with a connecting rod, and an energy storage reset device comprises an energy storage spring, a fixed block and a movable block; the movable block is fixedly connected with the rack, the side faces of the movable block and the fixed block are abutted against two ends of the reset spring, the rotary driving device and the energy storage reset device are simplified through the structure, the reliability and the stability of the equipment are improved, the use characteristic of limited space of the opening and closing device is met, and therefore the cost of the opening and closing device is reduced.

3. The utility model discloses a gear includes the connecting axle, the upper and lower both ends of connecting axle are provided with first drive gear and second drive gear respectively, first drive gear and rack toothing, then be provided with on the connecting rod with second drive gear complex gear hole, the transmission with the connecting rod has been reinforceed through the cooperation of second drive gear with the gear hole under the condition to rack drive satisfying and is connected, the connecting rod is detachable construction with the gear simultaneously, it compares with the fixed connection mode, it is convenient to dismantle the maintenance, can not damage other parts when dismantling simultaneously, the reuse rate of equipment has obtained the assurance.

4. The utility model discloses a digging arm internal fixation is provided with the pinion stand, and the gear rotates with the pinion stand through setting up the ball at top and links to each other, and the stability of gear installation is not only guaranteed to the pinion stand, can improve gear revolve's stationarity through the ball simultaneously, reduces the wearing and tearing between each part, prolongs the life of equipment.

5. The utility model discloses an elasticity locking mechanism includes fixing base, wane and limiting plate all articulate through connecting pin and fixing base, are provided with mutually supporting locking hole and locking ball between the one end of wane and the slider, are provided with reset spring between its other end and the fixing base; one end of the limiting plate abuts against the warping plate, and the other end of the limiting plate is connected with the unlocking device; the structure meets the use requirement and has fewer parts, thereby simplifying the equipment and improving the reliability and stability; locking hole and locking ball realize the locking to the slider simultaneously, and it is stable not only the locking, need not release by force through very big external force simultaneously, the closing of the fire window of being convenient for, convenient to use.

6. The utility model discloses an unlocking device comprises a glass ball and a torsion spring, wherein the glass ball is in a compression state by extruding the torsion spring, and a thrust plate for fixing the glass ball is arranged on the fixed seat; the torsion spring is abutted to the limiting plate simultaneously, on one hand, the glass ball blocking technology is widely applied to the technical fields of fire-fighting nozzles and the like, the technology is mature, the cost of equipment is lower, on the other hand, the glass ball machine can burst at about 65 ℃, the automatic closing of the fire-proof window can be realized in advance for a long time, the fire source and indoor articles can be cut off in time, and the purpose of fire prevention is achieved; and the structure is simple, and the reliability and the stability of the equipment are improved.

7. The utility model discloses an unlocking device includes micro-gap switch and electromagnetic switch, it has the pull rod to articulate between electromagnetic switch and the limiting plate, be provided with the drive plate with the micro-gap switch adaptation on the wane, the wane drives micro-gap switch in the course of the work to send control signal to the fire prevention control room of building, make things convenient for the staff to confirm the open and close state of fire prevention window fast, and realize closing of fire prevention window through manual operation's mode in the time; meanwhile, the electromagnetic switch can realize the quick closing of the fireproof window through the remote control of the fireproof control room when a fire disaster happens, the automation degree is higher, and the use is reliable and stable.

8. The utility model discloses a limiting plate tail end is provided with the board that resets, reset and be provided with reset spring between board and the fixing base, guarantee through reset spring that the limiting plate can in time reset under the non-conflagration condition, its gesture of guaranteeing the limiting plate is stable, and then guarantees the effective contact of limiting plate and wane, improves spacing reliability and stability.

9. The rocker of the utility model is provided with the limit bolt for limiting the position of the reset spring, thereby ensuring the posture stability of the reset spring through the limit bolt and avoiding the outward inclination of the reset spring in the use process, thereby improving the stability and reliability of the equipment; on the other hand, the limiting bolt can limit the sliding of the sliding block in time, so that the separation of the locking ball and the locking groove caused by transition displacement is avoided, and the normal operation of the device is ensured.

10. The utility model discloses be provided with the guide board of downward sloping at the wane front end, the bottom surface tilt up of slider is provided with the guide face that corresponds, avoids realizing hard contact between slider and the wane through the cooperation of guide board and guide face, and protective apparatus on the one hand, on the other hand can make the wane in time rotate to guarantee the smooth lock of locking groove and locking ball.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a matching view of the elastic locking mechanism and the unlocking mechanism according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of embodiment 2 of the present invention;

fig. 5 is an exploded schematic view of embodiment 2 of the present invention;

fig. 6 shows the cooperation of the elastic locking mechanism and the unlocking mechanism in embodiment 2 of the present invention

Fig. 7 is a sectional view of the movable arm of the present invention;

FIG. 8 is a structural diagram of the open state of the present invention;

fig. 9 is a schematic view of the gear structure of the present invention;

fig. 10 is a schematic structural view of the seesaw of the present invention;

FIG. 11 is a schematic diagram of the structure of the position limiting plate of the present invention;

reference numerals: 1. the device comprises a fixed arm, 2, a movable arm, 3, a connecting rod, 4, a rotary driving device, 5, an energy storage resetting device, 6, a sliding block, 7, an elastic locking mechanism, 8, an unlocking device, 9, a shell, 10, a plug, 21, a gear seat, 22, a ball, 31, a gear hole, 41, a gear, 42, a rack, 51, an energy storage spring, 52, a fixed block, 53, a movable block, 61, a locking ball, 62, a guide surface, 71, a fixed seat, 72, a rocker, 73, a limiting plate, 74, a connecting pin, 75, a locking hole, 76, a resetting spring, 81, a glass ball, 82, a torsion spring, 83, a microswitch, 84, an electromagnetic switch, 85, a pull rod, 86, a driving plate, 411, a connecting shaft, 412, a first driving gear, 413, a second driving gear, 711, a thrust plate, a 721, a limiting bolt, 722, a guide plate, 731 and a resetting.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following embodiments.

Embodiment mode 1

As a basic embodiment of the present invention, the present invention discloses a movable fire window opener, which has a specific structure as shown in fig. 1, and includes a fixed arm 1, a movable arm 2 and a connecting rod 3, where the movable arm 2 and the fixed arm 1 both include a housing 9, both ends of the housing 9 are sealed by plugs 10, a rotary driving device 4 and an energy storage resetting device 5 are disposed in the movable arm 2, the rotary driving device 4 includes a gear 41 and a rack 42, the gear 41 includes a first driving gear 412 and a second driving gear 413, the first driving gear 412 and the second driving gear 413 are connected by a connecting shaft 411, the first driving gear 412 is engaged with the rack 42, the gear 41 is disposed on a top ball 22 and rotatably mounted on a gear seat 21, and the gear seat 21 is fixedly mounted on the housing 9 of the movable arm 2;

the energy storage resetting device 5 comprises an energy storage spring 51, a movable block 53 and a fixed block 52, one end of the energy storage spring 51 is sleeved on the fixed block 52, the fixed block 52 is fixedly connected with the shell 9 of the movable arm 2 through a pin, the other end of the energy storage spring 51 is abutted against the movable block 53, and the movable block 53 is fixedly connected with the rack 42, so that the power connection between the rotary driving device 4 and the energy storage resetting device 5 is realized;

one end of the connecting rod 3 is provided with a gear hole 31 matched with the second driving gear 413, the other end of the connecting rod 3 is hinged with a sliding block 6, a sliding groove matched with the sliding block 6 is formed in the outer shell 9 of the fixing arm 1, the sliding block 6 is slidably installed in the sliding groove, and a locking ball 61 is arranged at the bottom of the sliding block 6.

An elastic locking mechanism 7 is fixedly arranged in the fixed arm 1, the elastic locking mechanism 7 comprises a fixed seat 71, a rocker 72 and a limit plate 73, the fixed seat 71 is fixedly arranged on the shell 9 of the fixed arm 1 through screws, the rocker 72 is hinged on the fixed seat 71 through a connecting pin 74, a hemispherical locking hole 75 matched with the locking ball 61 is arranged at the front end of the rocker 72, a return spring 76 is arranged between the other end of the rocker 72 and the fixed seat 71, and meanwhile, a limit bolt 721 for limiting the position of the return spring 76 is connected to the upper thread of the rocker 72 in a buckling manner; meanwhile, the fixed seat 71 is also hinged with a limit plate 73, the limit plate 73 is in contact with the top surface of the rocker 72 through a protruding part positioned at the upper part to limit the rocker 72, the fixed seat 71 is also provided with an unlocking device 8, the unlocking device 8 comprises a glass ball 81 and a torsion spring 82, and the torsion spring 82 is sleeved on a connecting pin 74 connecting the limit plate 73 and the fixed seat 72; the top of the torsion spring 82 is provided with a ferrule matched with the glass ball 81, the tail end of the fixed seat 71 is provided with a thrust plate 711, one end of the glass ball 81 is clamped in the ferrule, and the other end of the glass ball 81 abuts against the thrust plate 711, so that the glass ball 81 is fixedly mounted, and meanwhile, the torsion spring 82 is always in a compressed state through the pushing action of the glass ball 81; the torsion spring 82 abuts against the stopper plate 73.

Further, a reset plate 731 is further disposed at the rear side of the limit plate 73, and a reset spring 76 is disposed between the reset plate 731 and the fixed seat 71.

Further, the front end of the rocker 72 is provided with a guide plate 722 inclined downward, and the bottom of the slider 6 is provided with a guide surface 62 corresponding to the guide plate 722 inclined upward.

The utility model discloses during the use, the fixed arm is installed on the window frame with the fire window, the digging arm is installed on the casement of fire window, when the fire window is opened, the manual work promotes the casement, the casement is because its change and the connecting rod length of the contained angle of window frame is fixed unchangeable in the rotation process, therefore the casement drives when pulling the slider through the connecting rod, connecting rod self will take place to rotate, and then drive the gear rotation, and then drive the movable block through the rack and slide compression energy storage spring and realize the energy storage, simultaneously the slider is when laminating with the wane, the slider will extrude the wane downwards, the limiting plate is at this moment in wane top push down transfer position, and after locking ball and locking hole lock, the limiting plate rebounds and then impels the wane to reset and reach the locking effect; when the fire window needs to be closed in a normal use state, on one hand, the contact limit of the limiting plate on the rocker can be released by poking the protruding part at the top end of the limiting plate, the rocker rebounds under the action of the reset spring and releases the sliding block, and the automatic closing is realized through the energy storage spring; on the other hand, the window sash can also be pulled back manually, and the limit of the sliding block is realized through the locking ball, so that forced unlocking can be realized through pulling back, and further the closing of the window sash is realized;

when the conflagration takes place, in case the temperature improves to more than 65 ℃, then the glass ball will take place to burst under the high temperature effect, and the torsional spring obtains the release this moment, and then drives the limiting plate motion and removes the contact spacing to the wane, and the wane releases the slider under the reset spring effect, finally realizes closing of casement under the effect of energy storage spring.

Embodiment mode 2

As a preferred embodiment of the present invention, the present invention discloses a movable opening and closing device for a fire window, which has a specific structure as shown in fig. 2, and includes a fixed arm 1, a movable arm 2 and a connecting rod 3, wherein a rotation driving device 4 and an energy storage resetting device 5 are disposed in the movable arm 2, the rotation driving device 4 includes a gear 41 and a rack 42, the energy storage resetting device 5 includes a movable block 53, a fixed block 52 and an energy storage spring 51, the energy storage spring 51 is fixedly connected with the movable arm 2 via the fixed block 52, and the movable block 53 is slidably mounted in the movable arm 2 and is fixedly connected with the rack 42; the end surface of the movable block 53 is abutted against the energy storage spring 51; a gear seat 21 is fixedly arranged on the movable arm 2, the gear 41 is rotatably arranged on the gear seat 21 through a ball 22 arranged at the top, the gear 41 comprises a connecting shaft 411, a first driving gear 412 and a second driving gear 413, the first driving gear 412 is meshed with the rack 42, and the second driving gear 413 is in fit connection with a gear hole 31 on the connecting rod 3;

the fixing arm 1 is provided with a sliding block 6 in a sliding manner, meanwhile, an elastic locking mechanism 7 is further arranged in the fixing arm 1, the elastic locking mechanism 7 comprises a fixing seat 71, a rocker 72 and a limiting plate 73, the fixing seat 71 is fixedly arranged on the shell 9 of the fixing arm 1 through screws, the rocker 72 is hinged on the fixing seat 71 through a connecting pin 74, the front end of the rocker 72 is provided with a hemispherical locking hole 75 matched with the locking ball 61, a return spring 76 is arranged between the other end of the rocker 72 and the fixing seat 71, and meanwhile, a limiting bolt 721 for limiting the position of the return spring 76 is in threaded connection with the rocker 72; meanwhile, the fixed seat 71 is also hinged with a limit plate 73, the limit plate 73 is in contact with the top surface of the rocker 72 through a protruding part positioned at the upper part to limit the rocker 72, and the fixed seat 71 is also provided with an unlocking device 8;

the unlocking device 8 comprises an electromagnetic switch 84 and a microswitch 83, and the electromagnetic switch 84 is electrically connected with the building fire-proof control room; a telescopic rod of the electromagnetic switch 84 is hinged with a pull rod 85, and the pull rod 85 is hinged with the limit plate 73 through a connecting pin 74; the microswitch 83 is electrically connected with a building fire-proof control room, and meanwhile, a driving plate 86 for driving a contact piece of the microswitch 83 is arranged at the tail end of the rocker 72 in a hanging manner;

when the opening and closing device is normally used, the fixed arm is installed on a window frame of a fire window, the movable arm is installed on a window sash of the fire window, when the fire window is opened, the window sash is manually pushed, in the rotating process, due to the change of the included angle between the window sash and the window frame and the fixed length of the connecting rod, when the window sash is driven to pull the sliding block through the connecting rod, the connecting rod rotates, the gear is driven to rotate, the movable block is driven to slide through the rack, the energy storage spring is compressed, energy storage is achieved, meanwhile, when the sliding block is attached to the rocker, the sliding block downwards extrudes the rocker, the limiting plate downwards rotates an assignment position under the pushing of the rocker at the moment, and after the locking ball is buckled with the locking hole, the limiting plate rebounds to enable the rocker to; meanwhile, in the rotating process of the rocker, the driving plate pushes a contact piece of the microswitch to be closed, so that circuit conduction is realized, a signal is sent to a fire control room, and the opening of the fire window is marked; the fire window can be manually closed by adopting a mode of pulling the limit plate and the window sash; when a fire disaster happens, the control room conducts a circuit of the electromagnetic switch, and the electromagnetic switch pulls the limit plate through the pull rod to enable the limit plate to be separated from the rocker to release the contact limit of the limit plate on the rocker; the wane releases the locking ball under the reset spring effect, and then realizes the self-closing of fire window under the effect of energy storage spring, and the drive plate promotes micro-gap switch's contact piece closure once more simultaneously to send the signal that this fire window closed to the control room through micro-gap switch.

Compared with the prior art, the fire window realizes the movable design by adopting the opening and closing device of the utility model, thereby improving the lighting and ventilation performance of the fire window; meanwhile, the fire window can be closed in time when a fire disaster happens, so that the basic use function of the fire window is met; simultaneously the utility model discloses can also make things convenient for the control personnel to know the on off state of fire prevention window in real time through micro-gap switch, in time close all fire prevention windows when the conflagration takes place, eliminate the conflagration hidden danger.

Claims (10)

1. The utility model provides a movable fire window opens and close ware, includes fixed arm (1), digging arm (2) and connecting rod (3), its characterized in that: a rotation driving device (4) and an energy storage resetting device (5) which are matched with each other are arranged in the movable arm (2), a sliding block (6) is arranged on the fixed arm (1) in a sliding manner, one end of the connecting rod (3) is connected with the rotation driving device (4), and the other end of the connecting rod is hinged with the sliding block (6); the fire safety device is characterized in that an elastic locking mechanism (7) used for locking the sliding block (6) is arranged in the fixed arm (1), and an unlocking device (8) used for unlocking the elastic locking mechanism (7) when a fire disaster happens is further arranged in the fixed arm (1).

2. The movable fire window opener according to claim 1, wherein: the rotary driving device (4) comprises a gear (41) and a rack (42) which are matched with each other, the gear (41) is connected with the connecting rod (3), and the energy storage resetting device (5) comprises an energy storage spring (51), a fixed block (52) and a movable block (53); the movable block (53) is fixedly connected with the rack (42), and the side surfaces of the movable block (53) and the fixed block (52) are abutted against two ends of the energy storage spring (51).

3. A movable fire window opener according to claim 2, wherein: the gear (41) comprises a connecting shaft (411), a first driving gear (412) and a second driving gear (413) are respectively arranged at the upper end and the lower end of the connecting shaft (411), the first driving gear (412) is meshed with the rack (42), and a gear hole (31) matched with the second driving gear (413) is formed in the connecting rod (3).

4. A movable fire window opener according to claim 2, wherein: a gear seat (21) is fixedly arranged in the movable arm (2), and a gear (41) is rotatably connected with the gear seat (21) through a ball (22) arranged at the top.

5. The movable fire window opener according to claim 1, wherein: the elastic locking mechanism (7) comprises a fixed seat (71), a rocker (72) and a limiting plate (73), the rocker (72) and the limiting plate (73) are hinged to the fixed seat (71) through a connecting pin (74), a locking hole (75) and a locking ball (61) which are matched with each other are arranged between one end of the rocker (72) and the sliding block (6), and a return spring (76) is arranged between the other end of the rocker and the fixed seat (71); one end of the limiting plate (73) is abutted against the warping plate (72), and the other end of the limiting plate is connected with the unlocking device (8).

6. A movable fire window opener according to claim 5, characterised in that: the unlocking device (8) comprises a glass ball (81) and a torsion spring (82), the glass ball (81) is in a compressed state by extruding the torsion spring (82), and a thrust plate (711) for fixing the glass ball (81) is arranged on the fixed seat (71); the torsion spring (82) abuts against the limit plate (73) at the same time.

7. A movable fire window opener according to claim 5, characterised in that: unlocking device (8) include micro-gap switch (83) and electromagnetic switch (84), it has pull rod (85) to articulate between electromagnetic switch (84) and limiting plate (73), be provided with drive plate (86) with micro-gap switch (83) adaptation on rocker (72).

8. A movable fire window opener according to claim 5, characterised in that: the rear end of the limiting plate (73) is provided with a reset plate (731), and a reset spring (76) is arranged between the reset plate (731) and the fixed seat (71).

9. A movable fire window opener according to claim 5, characterised in that: and a limiting bolt (721) used for limiting the position of the return spring (76) is arranged on the rocker (72).

10. A movable fire window shutter according to any one of claims 5, 7 or 9, wherein: the front end of the rocker (72) is provided with a downward-inclined guide plate (722), and the bottom surface of the sliding block (6) is provided with a corresponding guide surface (62) in an upward-inclined manner.

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