CN110644875A - Emergency opening method of fireproof door - Google Patents
Emergency opening method of fireproof door Download PDFInfo
- Publication number
- CN110644875A CN110644875A CN201910946186.2A CN201910946186A CN110644875A CN 110644875 A CN110644875 A CN 110644875A CN 201910946186 A CN201910946186 A CN 201910946186A CN 110644875 A CN110644875 A CN 110644875A
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- Prior art keywords
- guide
- groups
- sliding
- spring
- door body
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
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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
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
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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
Abstract
The invention discloses an emergency opening method of a fireproof door, which comprises the following steps: when a fire disaster occurs, the pushing part can drive the pushing plate to be always tightly attached to the fireproof door body in the process that the fireproof door body is pushed to an open state by a person, after the fireproof door body is opened, the upper end surface of the limiting block is a limiting plane, and the free end of the trigger part is located on the limiting plane, so that the pushing plate is limited to retreat away from a stairway, and the fireproof door body can continuously keep the open state; after the conflagration was put out, the staff kicked the motion that resets closing mechanism and made two sets of controls to be kept away from each other, made trigger piece free end break away from the spacing plane of stopper, and the door closer can make the door body self-closing of preventing fire, and simultaneously this in-process, auxiliary device can apply the perpendicular decurrent effort of direction to the connecting rod, and this effort can make to support the push pedal and be and prevent the door body and close unanimous motion, supports and pushes away the automatic closure that the component does not influence the door body of preventing fire.
Description
Technical Field
The invention relates to the field of fire fighting, in particular to a method for keeping a fire door normally open after the fire door is pushed open.
Background
The invention discloses a fireproof door, which has the function of obstructing and delaying fire and smoke from spreading to a fire elevator and a stair front chamber to evacuate or extinguish pedestrians and firefighters when a fire happens, and the existing common fireproof door is basically provided with a door closer which is normally closed and does not have function at ordinary times, but only separates the fire elevator and the stair front chamber, when people in the fire need to escape from a stair channel, the front people push the fireproof door open, once the hands are released, the door closer can return to automatically close the fireproof door, and great inconvenience is brought to escape for the following people. The escape efficiency is higher.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a method for keeping a fire door normally open after the fire door is pushed open, which can limit the fire door to be closed after people push the fire door open, even if the fire door is always kept in an open state after being pushed open, when a fire breaks out, only a first person pushes the fire door open, and then people who escape can quickly pass through the fire door, so that the escape efficiency is higher.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.
An emergency opening method of a fire door comprises the following steps:
firstly, opening a fireproof door;
s1: when a fire disaster happens, people push the door body of the fireproof door open, and meanwhile, the normally open device of the fireproof door is triggered to operate;
the fire door normally-open device is provided with two groups and respectively corresponds to two door plates of a fire door body, the fire door normally-open device comprises a limiting normally-open mechanism and a resetting closing mechanism, the limiting normally-open mechanism is arranged on an indoor ceiling and is close to a hinge between the fire door body and a door frame, the limiting normally-open mechanism comprises a cover shell, a fixed support, a control member and a pushing member, the cover shell is of a rectangular shell structure with one open end and one closed end, the cover shell is fixedly arranged on the ceiling, the open end of the cover shell faces an outdoor stairway, and the fixed support is fixedly arranged in the cover shell;
the control component comprises control pieces, each control piece comprises a control block, a control guide pillar, a control spring and a limiting block, the guide direction of the control guide pillar is parallel to the width direction of the door frame, the control guide pillar is movably arranged in the fixed support and can displace along the guide direction of the control guide pillar, the control block is fixedly arranged at the end part of the control guide pillar, the control spring is movably sleeved outside the control guide pillar, the limiting block is fixedly arranged on the side surface of the control block, which is far away from the control guide pillar, the lower end surface of the limiting block is a guide inclined surface, the distance between the guide inclined surface and the control block is increased along the height direction vertical to the ground from bottom to top, the upper end surface of the limiting block is a limiting plane which is horizontally arranged, the limiting blocks are provided with a plurality of groups along the height direction vertical to the ground, the control pieces are provided with two groups along, the elasticity of the control spring drives the two groups of control pieces to move close to each other;
the pushing component comprises a pushing plate, a connecting rod, a triggering part and a pushing part, wherein the large surface of the pushing plate is parallel to the plane of the door frame, the pushing plate is contacted with the fireproof door body, the large surface of the pushing plate, which is away from the stairway, is provided with a hinged bulge, the connecting rod is obliquely arranged between the pushing plate and the fixed support, the distance between the connecting rod and the ground is gradually decreased from the indoor direction to the stairway, one end of the connecting rod is hinged with the hinged bulge, the other end of the connecting rod passes through the opening end of the housing and the area between the two control parts and is connected with the fixed support in a hinged mode, the connecting rod is provided with two groups of hinged bulges in the direction vertical to the ground, the two groups of connecting rod, the two groups of hinged bulges and the fixed support form a parallelogram structure together, the triggering part is movably arranged outside the, the pushing piece is arranged between the two groups of connecting rods, one end of the pushing piece is hinged with the fixed support, and the other end of the pushing piece is hinged with the pushing plate;
when a fire disaster occurs and people need to escape from the stairway, the people push away the fireproof door body and rush towards the stairway, the fireproof door body is pushed to an open state from a closed state by people, the pushing piece can drive the pushing plate to move close to the stairway, and the pushing plate is always tightly attached to the fireproof door body;
(II) closing the fireproof door;
s2: after the conflagration was put out, the staff kicks the motion that resets closing mechanism and make two sets of controls of control member do each other and keep away from, make the free end of trigger piece break away from the spacing plane of stopper, under the door closer spring action between the fireproof door body and door frame, the fireproof door body is automatic closing motion, simultaneously this in-process, auxiliary device can apply a direction perpendicular decurrent effort to the connecting rod, this effort can press down the connecting rod and finally make to support the push pedal and do and prevent the fireproof door body and close unanimous return motion, support and push away the automatic closure that the component did not influence the fireproof door body, prevent that the fireproof door body closes the back that finishes, the staff loosens the closing mechanism that resets and can make and reset closing mechanism and control member resume to the original.
The technical scheme is further improved and optimized.
The trigger piece include trigger sleeve, trigger round pin, trigger sleeve activity cover locate the connecting rod outside and constitute the sliding guide cooperation between the two, trigger round pin level be fixed in trigger sleeve outside and trigger the free end of round pin and be located the spacing plane of stopper, trigger the round pin and be provided with two sets ofly correspondingly.
The technical scheme is further improved and optimized.
The pushing part is arranged between the two groups of connecting rods and comprises a sliding sleeve, a sliding rod and a pushing spring, the sliding sleeve is of a cylindrical structure with one open end and one closed end, the closed end of the sliding sleeve is connected with the fixed support in a hinged mode, a hinge shaft core line is parallel to the door width direction of the door frame, and a hinge point between the sliding sleeve and the fixed support is positioned above the middle position of the hinge point between the two groups of connecting rods and the fixed support;
the large face of the pushing plate, which is away from the stair way, is also provided with a connecting bulge, the connecting bulge is positioned in the middle position between the two groups of hinged bulges, one end of the sliding rod is hinged with the connecting bulge, the core line of the hinged shaft is parallel to the door width direction of the door frame, the other end of the sliding rod penetrates through the opening end of the housing and the opening end of the sliding sleeve and is positioned in the sliding sleeve, the end of the sliding rod is provided with an external step, the external step and the sliding sleeve form sliding guide fit, and the opening end of the sliding sleeve is provided with an;
the pushing spring is in a compression state, the elastic force of the pushing spring is smaller than the elastic force of a door closer between the fireproof door body and the door frame, the pushing spring is movably sleeved outside the sliding rod, one end of the pushing spring is abutted against an internal step arranged at the opening end of the sliding sleeve, the other end of the pushing spring is abutted against an external step arranged at the end part of the sliding rod, and the elastic force of the pushing spring drives the sliding rod to move close to the closed end of the sliding sleeve.
The technical scheme is further improved and optimized.
The reset closing mechanism comprises a kick reset component, a reset driving component and a connecting component, wherein the connecting component is used for connecting the kick reset component and the reset driving component, the kick reset component is used for being reset by a worker and transmitting the action to the reset driving component through a connecting rope, and the reset driving component is used for driving the control component to cancel the limitation of the abutting component by utilizing the power generated by the kick reset action.
The technical scheme is further improved and optimized.
The kick reset component is arranged at the corner of the fireproof door body and comprises an installation shell, a fixing plate, a kick pin, a guide post and a reset spring, the installation shell is fixedly arranged at the corner of the wall, the side surface of the installation shell is provided with a sliding hole, one end of the kick pin is positioned in the installation shell, the other end of the kick pin penetrates through the sliding hole and is positioned outside the installation shell, and the kick pin and the sliding hole form sliding guide fit;
the large surface of the fixing plate is vertical to the extending direction of the kick pin, and the fixing plate is fixed on the end part of the kick pin in the mounting shell;
the guide direction of the guide post is parallel to the extending direction of the kick pin, the guide post is fixed in the mounting shell, the free end of the guide post is provided with two groups of abutting steps, the fixing plate is also provided with guide holes penetrating through the thickness of the guide post and movably sleeved outside the guide post through the guide holes, the guide holes and the guide post form sliding guide fit, and the guide holes are correspondingly provided with two groups;
the guide post outside is located to reset spring movable sleeve, reset spring's one end is contradicted with the fixed plate, the other end is contradicted with the conflict step that sets up in the guide post free end, reset spring's elasticity orders about the fixed plate and is done the motion of keeping away from the conflict step, reset spring corresponds and is provided with two sets ofly.
The technical scheme is further improved and optimized.
The reset driving component is arranged in the housing and comprises a push-pull part, a driving part and a transmission part, the push-pull part comprises a first guide rod, a movable support, a push-pull rack, a push-pull rope and pulleys, the guide direction of the first guide rod is parallel to the door width direction of the door frame, the first guide rod is fixed on the fixed support, the first guide rod is provided with two groups, the movable support is movably arranged outside the first guide rod, the two groups of guide rods form sliding guide fit, the extension direction of the push-pull rack is parallel to the door width direction of the door frame, and the push-pull rack is fixed on the movable support;
the pulley is movably arranged on the fixed support and can rotate around the axial direction of the pulley, one end of the push-pull rope is fixedly connected with the push-pull rack, and the other end of the push-pull rope rounds a plurality of groups of pulleys and is fixedly connected with the control block;
the push-pull piece is provided with two groups of meshing teeth of two groups of push-pull racks along the height direction vertical to the ground, the two groups of meshing teeth are arranged on the side surfaces facing each other, and the two groups of push-pull ropes are respectively and fixedly connected with the control blocks of the two groups of control pieces;
the driving piece comprises a second guide rod, a sliding support, a driving rack and driving springs, the guiding direction of the second guide rod is parallel to the door width direction of the door frame, the second guide rod is fixed on the fixed support, the two guide rods are provided with two groups, the sliding support is movably arranged at the outer part of the second guide rod, the two groups of the guide rods form sliding guiding fit, the extending direction of the driving rack is parallel to the door width direction of the door frame, the driving rack is fixed on the sliding support, the driving springs are movably sleeved at the outer part of the second guide rod, one end of each driving spring is abutted against the fixed support, the other end of each driving spring is abutted against the sliding support, the elastic force of each driving spring drives the sliding support to displace along the guiding direction of the second;
the transmission part comprises a transmission shaft and transmission gears, the axial direction of the transmission shaft is parallel to the ground and perpendicular to the guiding direction of the first guide rod, the transmission shaft is movably mounted on the fixed support and can rotate around the axial direction of the transmission shaft, the transmission gears are coaxially fixed outside the transmission shaft, the transmission gears are provided with two groups and are respectively located at one end of the transmission shaft, one group of transmission gears are meshed with the driving rack, the other group of transmission gears are meshed with the push-pull racks of the two groups of push-pull parts, and when the driving spring drives the sliding support to move along the guiding direction of the second guide rod, the driving spring finally drives the two groups of transmission gears and the push-pull parts to be matched and enables the two groups.
The technical scheme is further improved and optimized.
The connecting assembly comprises a transition guide wheel and a connecting rope, the transition guide wheel is provided with a plurality of groups and is movably mounted on the fixed support, the door frame and the mounting shell, one end of the connecting rope is fixedly connected with the fixed plate, and the other end of the connecting rope bypasses the plurality of groups of transition guide wheels and is fixedly connected with the driving rack;
the initial state of the driving spring is a compression state, the elastic coefficient of the driving spring is smaller than that of the reset spring, and the elastic coefficient of the driving spring is larger than that of the control spring.
The technical scheme is further improved and optimized.
The auxiliary device is arranged in an interlayer of an indoor ceiling and comprises a power mechanism and an auxiliary mechanism, the power mechanism is used for providing power for the operation of the auxiliary mechanism, and the auxiliary mechanism is used for driving the pushing component to retreat along with the door body of the fireproof door in the closing process of the door body of the fireproof door;
power unit include motor, pivot, the motor is fixed in the intermediate layer of indoor ceiling and its output shaft axial direction is on a parallel with the axial of transmission shaft, still be provided with the support frame in the indoor ceiling intermediate layer, the axial of pivot is on a parallel with the door width direction of door frame and pivot movable mounting can wind self axial rotation on the support frame, be provided with the power transmission component between motor and the pivot and carry out the power connection transmission through the power transmission component between the two, the power transmission component is turbine worm transmission structure.
The technical scheme is further improved and optimized.
The auxiliary mechanism comprises an auxiliary component, the auxiliary component comprises a first guide rod, a mounting bracket, an output rack and an input gear, the guide direction of the first guide rod is vertical to the ground, the first guide rod is fixed in an indoor ceiling interlayer, two groups of first guide rods are arranged, the mounting bracket is movably mounted outside the first guide rod, the first guide rods and the second guide rod form sliding guide fit, the extension direction of the output rack is vertical to the ground and is fixedly mounted on the mounting bracket, the input gear is coaxially fixed outside the rotating shaft, and the input gear is meshed with the output rack;
the auxiliary mechanism further comprises a fixed rod, a second guide rod and a pressing pin, the guide direction of the second guide rod is perpendicular to the ground and is fixed on the fixed support, the second guide rod is provided with two groups, the outer portion of the second guide rod is movably mounted on the connecting support and forms sliding guide fit between the connecting support and the connecting support, the fixed rod is vertically arranged, one end of the fixed rod is fixedly connected with the output rack, the other end of the fixed rod penetrates through the ceiling and the housing and is fixedly connected with the connecting support, and the pressing pin is vertically mounted on the connecting support and the free end of the pressing pin is located right above the connecting rod.
Compared with the prior art, the normally open device for the fire door has the advantages that the normally open device for the fire door is arranged on the fire door, so that people can limit the fire door to be closed after pushing the fire door open, the fire door can be always kept in an open state even if the fire door is pushed open, when a fire disaster happens, only a first person pushes the fire door open, a subsequent person who escapes can quickly pass through the normally open device, the escaping efficiency is higher, meanwhile, after the fire disaster is extinguished, the worker can automatically close the fire door only by kicking the reset closing mechanism, and the closing process is simple.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic view of the normal open device of the fire door of the present invention cooperating with the door body of the fire door.
Figure 4 is a schematic structural view of the fire door normally opening device of the present invention.
Figure 5 is a schematic structural view of the fire door normally opening mechanism of the present invention.
Fig. 6 is a schematic view of the engagement between the control member and the pushing member according to the present invention.
Fig. 7 is a schematic structural view of a control member of the present invention.
FIG. 8 is a schematic cross-sectional view of the control block and the limiting block of the present invention.
Fig. 9 is a schematic structural view of the pushing member of the present invention.
Fig. 10 is a schematic view of the engagement of the trigger member and the connecting rod of the present invention.
Fig. 11 is a schematic cross-sectional view of the pushing member of the present invention.
Fig. 12 is a schematic structural view of the kick reset member of the present invention.
Fig. 13 is a schematic cross-sectional view of the kick reset member of the present invention.
Fig. 14 is a schematic view of the engagement of the reset drive member and the control member of the present invention.
Fig. 15 is a schematic structural view of the reset driving member of the present invention.
Fig. 16 is a schematic structural diagram of the auxiliary device of the present invention.
Fig. 17 is a schematic structural diagram of the power mechanism of the present invention.
FIG. 18 is a schematic view of the engagement of the assist mechanism and the control member of the present invention.
Fig. 19 is a schematic structural view of the assist mechanism of the present invention.
Detailed Description
An emergency opening method of a fire door comprises the following steps:
firstly, opening a fireproof door;
s1: when a fire breaks out, people push the door body 100 of the fireproof door open, and the fireproof door open device 200 is triggered to operate;
the fire door normally-open device 200 is provided with two groups and respectively corresponds to two door panels of the fire door body 100, the fire door normally-open device 200 comprises a limiting normally-open mechanism 210 and a reset closing mechanism 220, the limiting normally-open mechanism 210 is installed on an indoor ceiling and is close to a hinge joint between the fire door body 100 and a door frame, the limiting normally-open mechanism 210 comprises a cover shell, a fixing support 2110, a control member 2120 and a pushing member 2130, the cover shell is a rectangular shell structure with one open end and one closed end, the cover shell is fixedly installed on the ceiling, the open end of the cover shell faces an outdoor stairway, and the fixing support 2110 is fixedly installed in the cover shell;
the control member 2120 includes a control member, the control member includes a control block 2121, a control guide post 2122, a control spring 2123, and a limit block 2124, the guide direction of the control guide post 2122 is parallel to the door width direction of the door frame, the control guide post 2122 is movably mounted in the fixing bracket 2110 and can displace along its own guide direction, the control block 2121 is fixedly mounted at the end of the control guide post 2122, the control spring 2123 is movably sleeved outside the control guide post 2122, the limit block 2124 is fixedly mounted on the side of the control block 2121 away from the control guide post 2122, the lower end surface of the limit block 2124 is a guide inclined surface, the distance between the guide inclined surface and the control block 2121 increases from bottom to top along the height direction perpendicular to the ground, the upper end surface of the limit block 2124 is a limit plane arranged horizontally, the limit block 2124 is provided with a plurality of sets along the height direction array perpendicular to the ground, the control member is provided, the two control blocks 2121 are respectively fixed to the opposite ends of the two control guide posts 2122, and the two control pieces are driven by the elasticity of the control spring 2123 to move close to each other;
the pushing component 2130 comprises a pushing plate 2131, a connecting rod 2132, a triggering component and a pushing component, wherein the large face of the pushing plate 2131 is parallel to the plane of the door frame, the pushing plate 2131 is in contact with the fireproof door body 100, the large face of the pushing plate 2131, which is away from the stairway, is provided with a hinge protrusion, the connecting rod 2132 is obliquely arranged between the pushing plate 2131 and the fixed bracket 2110, the distance between the connecting rod 2132 and the ground is gradually reduced from the indoor direction to the stairway, one end of the connecting rod 2132 is hinged with the hinge protrusion, the other end of the connecting rod 2132 penetrates through the opening end of the housing and the area between the two control components and is connected with the fixed bracket 2110 in a hinged manner, the connecting rod 2132 is provided with two groups of hinge protrusions in the direction perpendicular to the ground, the two groups of connecting rod 2132, the two groups of hinge protrusions and the fixed bracket 2110 form a parallelogram structure, the triggering component is movably arranged outside the connecting rod 2132, the pushing piece is arranged between the two groups of connecting rods 2132, one end of the pushing piece is hinged with the fixing support 2110, and the other end of the pushing piece is hinged with the pushing plate 2131;
when a fire disaster occurs and people need to escape from a stairway, the people push the fireproof door body 100 and rush to the stairway, in the process that the fireproof door body 100 is pushed to an open state from a closed state by people, the pushing piece can drive the pushing plate 2131 to move close to the stairway, and the pushing plate 2131 is always tightly attached to the fireproof door body 100, in the process, the lower end face of the limiting block 2124 is a guide inclined face, and the trigger piece is movably mounted outside the connecting rod 2132, so that the control component 2120 does not influence the movement of the pushing component 2130, after the fireproof door body 100 is opened, the upper end face of the limiting block 2124 is a limiting plane, and the free end of the trigger piece is located on the limiting plane, so that the pushing plate 2131 is limited to retreat away from the stairway, the door body 100 can continuously keep the open state, and subsequent people who escape can escape from the fireproof door quickly;
(II) closing the fireproof door;
s2: after a fire disaster is extinguished, a worker kicks the reset closing mechanism 220 and enables the two control pieces of the control member 2120 to move away from each other, so that the free end of the trigger is separated from the limiting plane of the limiting block 2124, the fireproof door body 100 performs automatic closing movement under the elastic action of the door closer between the fireproof door body 100 and the doorframe, meanwhile, the auxiliary device 300 exerts an acting force in a direction vertical downward on the connecting rod 2132, the acting force presses the connecting rod 2132 and finally enables the pushing plate 2131 to perform returning movement consistent with the closing of the fireproof door body 100, the pushing member 2130 does not affect the automatic closing of the fireproof door body 100, and after the fireproof door body 100 is closed, the worker releases the reset closing mechanism 220 to enable the reset closing mechanism 220 and the control member 2120 to be restored to the original states.
Compared with the traditional fire door, the fire door normally-open device has the advantages that the fire door normally-open device is arranged on the fire door, so that people can limit the fire door to be closed after pushing the fire door open, the fire door always keeps an open state even if the fire door is pushed open, when a fire breaks out, only a first person pushes the fire door open, and subsequent evacuees can quickly pass through the fire door, the escape efficiency is higher, meanwhile, after the fire is extinguished, the workers can automatically close the fire door only by kicking the reset closing mechanism, and the closing process is simple.
The device for keeping the fire-fighting fireproof door normally open after being pushed open comprises a fireproof door normally-open device 200 for limiting the closing of the fireproof door body 100 in the opening process of the fireproof door body, and an auxiliary device 300 for assisting the fireproof door normally-open device 200 in the triggering operation process of the fireproof door normally-open device; when a fire occurs and people need to escape from a stairway, people push the fireproof door body 100 away and towards the stairway, after the fireproof door body 100 is pushed away, because the fireproof door body 100 can be always kept in an open state due to the existence of the fireproof door normally-open device 200, people behind the fireproof door body 100 can escape conveniently, the escape probability is increased, after a fire is extinguished, the people manually close the fireproof door normally-open device 200 to cancel the limitation on the fireproof door body 100, the fireproof door body 100 is closed under the action of the door closer elastic force between the self and the door frame, the fireproof door body 100 is closed, the auxiliary device 300 can assist the fireproof door normally-open device 200 to quickly cancel the limitation on the fireproof door body 100.
The fire door normally open device 200 be provided with two sets ofly and correspond with two door panels of the fire door body 100 respectively, the fire door normally open device 200 includes spacing normally open mechanism 210, closing mechanism 220 resets, spacing normally open mechanism 210 is used for opening the in-process at the fire door body 100 and limits it and close, closing mechanism 220 resets is used for making spacing normally open mechanism 210 cancel the restriction to fire door body 100.
The limiting normally-open mechanism 210 is mounted on an indoor ceiling and is close to a hinge joint between the fireproof door body 100 and a doorframe, the limiting normally-open mechanism 210 comprises a cover shell, a fixing support 2110, a control member 2120 and a pushing member 2130, the cover shell is a rectangular shell structure with an open end and a closed end, the cover shell is fixedly mounted on the ceiling, the open end of the cover shell faces an outdoor stairway, the fixing support 2110 is fixedly mounted in the cover shell, and the control member 2120 and the pushing member 2130 are both mounted on the fixing support 2110.
The control member 2120 includes a control member, the control member includes a control block 2121, a control guide post 2122, a control spring 2123, and a limit block 2124, the guiding direction of the control guide post 2122 is parallel to the door width direction of the door frame, the control guide post 2122 is movably mounted in the fixed bracket 2110 and the control guide post 2122 can displace along its guiding direction, two sets of the control guide posts 2122 are arranged along the door height direction of the door frame, and the control block 2121 is fixedly mounted at the end of the control guide post 2122.
The control spring 2123 is movably sleeved outside the control guide post 2122, one end of the control spring 2123 abuts against the control block 2121, the other end of the control spring 2123 abuts against the fixing bracket 2110, the elastic force of the control spring 2123 drives the control block 2121 and the control guide post 2122 to displace along the guiding direction of the control guide post 2122, and two sets of the control springs 2123 are correspondingly arranged.
The limiting block 2124 is fixedly mounted on a side surface of the control block 2121 away from the control guide pillar 2122, a lower end surface of the limiting block 2124 is a guide inclined surface, a distance between the guide inclined surface and the control block 2121 increases from bottom to top along a height direction perpendicular to the ground, an upper end surface of the limiting block 2124 is a limiting plane arranged horizontally, and a plurality of groups of the limiting blocks 2124 are arranged in an array along the height direction perpendicular to the ground.
The two sets of control members are symmetrically arranged along the width direction of the door frame, the two sets of control members 2121 are respectively fixed at the end parts of the two sets of control guide posts 2122 facing each other, and the two sets of control members are driven to move close to each other by the elasticity of the control springs 2123.
The push-against component 2130 comprises a push-against plate 2131, a connecting rod 2132, a trigger component and a push-against component, wherein the large surface of the push-against plate 2131 is parallel to the plane of the door frame, the push-against plate 2131 is in contact with the fireproof door body 100, the large surface of the push-against plate 2131, which is away from the stairway, is provided with a hinge protrusion, the connecting rod 2132 is obliquely arranged between the push-against plate 2131 and the fixed bracket 2110, the distance between the connecting rod 2132 and the ground is gradually reduced from the indoor direction to the stairway, one end of the connecting rod 2132 is hinged with the hinge protrusion, the other end of the connecting rod 2132 penetrates through the opening end of the housing and the area between the two sets, and two hinge axis heart yearns all are on a parallel with the door width direction of door frame, and connecting rod 2132 is provided with two sets and the articulated arch corresponds and is provided with two sets along the direction of perpendicular to ground, constitutes parallelogram structure jointly between two sets of connecting rod 2132, two sets of articulated arch, fixed bolster 2110.
The trigger piece comprises a trigger sleeve 2133 and a trigger pin 2134, the trigger sleeve 2133 is movably sleeved outside the connecting rod 2132, the trigger sleeve 2133 and the connecting rod 2132 form sliding guide fit, the trigger pin 2134 is horizontally fixed outside the trigger sleeve 2133, the free end of the trigger pin 2134 is located on a limiting plane of the limiting block 2124, and the trigger pin 2134 is correspondingly provided with two groups.
The pushing part is arranged between the two groups of connecting rods 2132 and comprises a sliding sleeve 2135, a sliding rod 2136 and a pushing spring 2137, the sliding sleeve 2135 is of a cylindrical structure with one open end and one closed end, the closed end of the sliding sleeve 2135 is connected with the fixing support 2110 in a hinged mode, a hinged shaft core wire is parallel to the door width direction of the door frame, and a hinged point between the sliding sleeve 2135 and the fixing support 2110 is located above the middle position of the hinged point between the two groups of connecting rods 2132 and the fixing support 2110.
The large face of the abutting-pushing plate 2131, which deviates from the stair way, is also provided with connecting protrusions, the connecting protrusions are positioned in the middle position between the two groups of hinged protrusions, one end of a sliding rod 2136 is hinged with the connecting protrusions, a hinge shaft core line is parallel to the door width direction of a door frame, the other end of the sliding rod 2136 penetrates through the opening end of the housing and the opening end of the sliding sleeve 2135 and is positioned in the sliding sleeve 2135, an external step is arranged at the end, sliding guide fit is formed between the external step and the sliding sleeve 2135, and an internal step is arranged at the opening end of the sliding sleeve 2135.
The pushing spring 2137 is in a compressed state, the elastic force of the pushing spring 2137 is smaller than the elastic force of a door closer between the fireproof door body 100 and a door frame, the pushing spring 2137 is movably sleeved outside the sliding rod 2136, one end of the pushing spring 2137 abuts against an internal step arranged at the opening end of the sliding sleeve 2135, the other end of the pushing spring 2137 abuts against an external step arranged at the end part of the sliding sleeve 2136, and the elastic force of the pushing spring 2137 drives the sliding rod 2136 to move close to the closed end of the sliding sleeve 2135.
In the process that the fireproof door body 100 is pushed to an open state from a closed state by a person, the elastic force of the push spring 2137 drives the sliding rod 2136 to move close to the closed end of the sliding sleeve 2135, meanwhile, the hinge point between the sliding sleeve 2135 and the fixing bracket 2110 is positioned above the middle position of the hinge point between the two groups of connecting rods 2132 and the fixing bracket 2110, and the connecting protrusion is positioned at the middle position between the two groups of hinge protrusions, so that under the elastic force action of the push spring 2137, the push plate 2131 moves close to a stairway and the push plate 2131 is always tightly attached to the fireproof door body 100, in the process, the lower end face of the limiting block 2124 is a guide inclined face and the trigger is movably mounted outside the connecting rod 2132, and therefore the control member 2120 does not influence the movement of the push member 2130;
after the fireproof door body 100 is opened, the upper end surface of the limiting block 2124 is a limiting plane, and the free end of the trigger is located on the limiting plane, so that the pushing plate 2131 is limited to retreat away from the stairway, and the fireproof door body 100 can be continuously kept in an open state.
The reset closing mechanism 220 includes a kick reset member 2210, a reset driving member 2220, and a connecting assembly for connecting the kick reset member 2210 and the reset driving member 2220, wherein the kick reset member 2210 is used for performing a kick reset operation by a worker and transmitting the operation to the reset driving member 2220 through a connecting string 2230, and the reset driving member 2220 is used for driving the control member 2120 to release the restriction of the abutting member 2130 by using power generated by the kick reset operation.
The kick reset member 2210 is installed at a wall corner of the fire door body 100, the kick reset member 2210 includes an installation shell 2211, a fixing plate 2212, a kick pin 2213, a guide post 2214 and a reset spring 2215, the installation shell 2211 is fixedly installed at the wall corner, a sliding hole is opened on the side surface of the installation shell 2211, one end of the kick pin 2213 is located in the installation shell 2211, the other end of the kick pin 2213 passes through the sliding hole and is located outside the installation shell 2211, and a sliding guide fit is formed between the kick pin 2213 and the sliding hole.
The large face of the fixing plate 2212 is perpendicular to the extending direction of the kick pin 2213, and the fixing plate 2212 is fixed to the end of the kick pin 2213 in the mounting housing 2211.
The guide direction of guide post 2214 be on a parallel with the extending direction of kick pin 2213 and in guide post 2214 was fixed in installation shell 2211, the free end of guide post 2214 was provided with the conflict step, guide post 2214 was provided with two sets ofly, still set up the guiding hole that runs through its thickness on the fixed plate 2212 and it cup joints in the guide post 2214 outside through the guiding hole activity, constitute the cooperation of sliding guide between guiding hole and the guide post 2214 and the guiding hole correspondence has been seted up two sets ofly.
The reset driving member 2220 is disposed in the housing, the reset driving member 2220 includes a push-pull member, a driving member, and a transmission member, the push-pull member includes a first guide bar 2221, a movable bracket 2222, a push-pull rack 2223, a push-pull rope, and pulleys, the guide direction of the first guide bar 2221 is parallel to the door width direction of the door frame, the first guide bar 2221 is fixed to the fixed bracket 2110, the first guide bar 2221 is provided with two sets, the movable bracket 2222 is movably mounted outside the first guide bar 2221 and forms a sliding guide fit therebetween, the extension direction of the push-pull rack 2223 is parallel to the door width direction of the door frame, and the push-pull rack 2223 is fixed to the movable bracket 2222.
The pulleys are movably mounted on the fixed support 2210 and can rotate around the axial direction of the pulleys, one end of the push-pull rope is fixedly connected with the push-pull rack 2223, and the other end of the push-pull rope is wound around a plurality of groups of pulleys and is fixedly connected with the control block 2121.
The push-pull piece is provided with two groups of meshing teeth of two groups of push-pull racks 2223 along the height direction perpendicular to the ground, the meshing teeth are arranged on the side surfaces facing each other between the two groups of meshing teeth, and the two groups of push-pull ropes are respectively and fixedly connected with the control blocks 2121 of the two groups of control pieces.
The driving member includes a second guiding rod 2224, a sliding bracket 2225, a driving rack 2226 and two driving springs 2227, the guiding direction of the second guiding rod 2224 is parallel to the door width direction of the door frame, the second guiding rod 2224 is fixed on the fixing bracket 2110, the second guiding rod 224 is provided with two sets, the sliding bracket 2225 is movably mounted outside the second guiding rod 2224, and a sliding guiding fit is formed between the two guiding rod 2224 and the sliding bracket 2226, the extending direction of the driving rack 2226 is parallel to the door width direction of the door frame, the driving rack 2226 is fixed on the sliding bracket 2225, the driving springs 2227 are movably sleeved outside the second guiding rod 2224, one end of each driving spring 2227 is abutted against the fixing bracket 2210, the other end is abutted against the sliding bracket 2225, the elastic force sliding bracket 2225 of each driving spring 2227 is displaced along the guiding direction of the second guiding rod 2224, and two sets.
The transmission member includes a transmission shaft 2228 and a transmission gear 2229, the axial direction of the transmission shaft 2228 is parallel to the ground and perpendicular to the guiding direction of the first guide bar 2221, the transmission shaft 2228 is movably mounted on the fixed bracket 2110 and can rotate around the axial direction of the transmission shaft 2228, the transmission gear 2229 is coaxially fixed outside the transmission shaft 2228, the transmission gear 2229 is provided with two sets and is respectively located at one end of the transmission shaft 2228, one set of the transmission gear 2229 is engaged with the driving rack 2226, the other set of the transmission gear 2229 is engaged with the push-pull racks 2223 of the two sets of push-pull members, and when the driving spring 2227 drives the sliding bracket 2225 to move along the guiding direction of the second guide bar 2224, the driving spring 2227 finally drives the two sets of the control members to move away from each other.
The connecting assembly comprises a transition guide wheel and a connecting rope 2230, wherein a plurality of groups of transition guide wheels are arranged on the transition guide wheel and are movably mounted on the fixing support 2110, the door frame and the mounting housing 2211, one end of the connecting rope 2230 is fixedly connected with the fixing plate 2212, the other end of the connecting rope 2230 bypasses the plurality of groups of transition guide wheels and is fixedly connected with the driving rack 2226, when the fixing plate 2212 is driven to move by the elastic force of the return spring 2215, the connecting rope 2230 pulls the driving rack 2226 to synchronously move, and the moving direction of the driving rack 2226 is opposite to the moving direction of the driving rack 2226 driven by the driving spring 2227.
The initial state of the driving spring 2227 is a compressed state, the elastic coefficient of the driving spring 2227 is smaller than that of the return spring 2215, and the elastic coefficient of the driving spring 2227 is larger than that of the control spring 2123.
The process that the fireproof door body 100 is closed again after being pushed and opened by people specifically shows as follows: the worker kicks the kick pin 2213 and loosens the connecting rope 2230, then the elastic force of the driving spring 2227 drives the driving rack 2226 to move, and finally the two control members move away from each other, so that the free end of the trigger member is separated from the limiting plane of the limiting block 2124, that is, the limiting plane of the limiting block 2124 cancels the limitation on the trigger member and the abutting plate 2131, under the elastic force action of the door closer between the fireproof door body 100 and the door frame, the fireproof door body 100 is automatically closed and the abutting plate 2131 moves synchronously with the fireproof door body 100, after the fireproof door body 100 is closed, the worker releases the kick pin 2213 to restore the reset closing mechanism 220 and the two control members to the original state.
The auxiliary device 300 is installed in an interlayer of an indoor ceiling, the auxiliary device 300 comprises a power mechanism 310 and an auxiliary mechanism 320, the power mechanism 310 is used for providing power for the operation of the auxiliary mechanism 320, and the auxiliary mechanism 320 is used for driving the abutting member 2130 to retreat along with the fireproof door body 100 in the closing process of the fireproof door body 100.
The power mechanism 310 comprises a motor 311 and a rotating shaft 312, wherein the motor 311 is fixed in an interlayer of an indoor ceiling, an output shaft of the motor 311 is axially parallel to the axial direction of the transmission shaft 2228, a support bracket is further arranged in the interlayer of the indoor ceiling, the axial direction of the rotating shaft 312 is parallel to the door width direction of a door frame, the rotating shaft 312 is movably mounted on the support bracket and can rotate around the axial direction of the rotating shaft, a power transmission member 313 is arranged between the motor 311 and the rotating shaft 312, power is connected and transmitted between the motor 311 and the rotating shaft 312 through the power transmission member 313, and specifically, the power transmission member 313 is a worm gear.
The auxiliary mechanism 320 comprises an auxiliary component, the auxiliary component comprises a first guide rod 321, a mounting bracket 322, an output rack 323 and an input gear 324, the guide direction of the first guide rod 321 is perpendicular to the ground, the first guide rod 321 is fixed in an indoor ceiling interlayer, the first guide rods 321 are provided in two groups, the mounting bracket 322 is movably mounted outside the first guide rod 321, the first guide rod 321 and the first guide rod 321 form sliding guide fit, the extension direction of the output rack 323 is perpendicular to the ground and fixedly mounted on the mounting bracket 322, the input gear 324 is coaxially fixed outside the rotating shaft 312, and the input gear 324 is meshed with the output rack 323.
The auxiliary mechanism 320 further comprises a fixing rod 325, two guide rods 326 and a pressing pin 327, the guide direction of the two guide rods 326 is perpendicular to the ground and is fixed on the fixing support 2110, the two guide rods 326 are provided with two groups, the outer portion of the two guide rods 326 is movably mounted on the connecting support, the two guide rods are in sliding guide fit, the fixing rod 325 is vertically arranged, one end of the fixing rod 325 is fixedly connected with the output rack 323, the other end of the fixing rod 325 penetrates through the ceiling and the housing and is fixedly connected with the connecting support, the pressing pin 327 is vertically mounted on the connecting support, and the free end of the pressing pin 327 is located right above the connecting rod 2132.
When the staff kicks the foot and kicks pin 2213 and makes fire door body 100 self-closing, power unit 310 moves and orders about the process that complementary unit 320 assisted fire door body 100 closed, and the concrete expression is: the power mechanism 310 drives the input gear 324 to rotate and finally enables the output rack 323 to do descending motion, the output rack 323 descends and pulls the pressing pin 327 to descend synchronously, the pressing pin 327 descends to apply a vertically downward acting force to the connecting rod 2132, the acting force can press the connecting rod 2132 and finally enable the abutting plate 2131 to do returning motion consistent with the closing of the fireproof door body 100, the significance of the power mechanism is that, when the fireproof door body 100 is opened, the abutting plate 2131 moves close to a stair way under the elastic force of the abutting spring 2137 and is always tightly attached to the fireproof door body 100, when the fireproof door body 100 is automatically closed under the elastic force of a door closer, the fireproof door body 100 overcomes the elastic force of the abutting spring 2137 and is closed slowly, while the auxiliary device 300 can apply a vertically downward acting force to the connecting rod 2132, the acting force can enable the abutting plate 2131 to do returning motion consistent with the closing of the fireproof door body 100 in advance, when the fireproof door body 100 is closed, the elastic force of the abutting spring 2137 does not need to be overcome, and the closing speed is higher.
In actual work, when a fire occurs and people need to escape from a stairway, people push away the fireproof door body 100 and rush towards the stairway, in the process that the fireproof door body 100 is pushed to an open state by people from a closed state, the elastic force of the push-against spring 2137 drives the sliding rod 2136 to move close to the closed end of the sliding sleeve 2135, meanwhile, the hinge point between the sliding sleeve 2135 and the fixing support 2110 is positioned above the middle position of the hinge point between the two groups of connecting rods 2132 and the fixing support 2110, and the connecting protrusion is positioned at the middle position between the two groups of hinge protrusions, so that under the elastic force of the push-against spring 2137, the push-against plate 2131 moves close to the stairway and the push-against plate 2131 is always attached to the fireproof door body 100, in the process, because the lower end face of the limiting block 2124 is a guiding inclined face and the trigger is movably installed outside the connecting rods 2132, the control member 2120 does not influence the movement of, after the fireproof door body 100 is opened, because the upper end surface of the limiting block 2124 is a limiting plane and the free end of the trigger is located on the limiting plane, the pushing plate 2131 is limited to retreat away from the stairway, so that the fireproof door body 100 can continuously keep an open state, and a subsequent escaping person can quickly escape;
after a fire disaster is extinguished, a worker kicks the kick pin 2213 and looses the connecting rope 2230, then the elastic force of the driving spring 2227 drives the driving rack 2226 to move, and finally the two sets of control members move away from each other, so that the free end of the trigger member is separated from the limiting plane of the limiting block 2124, that is, the limiting plane of the limiting block 2124 cancels the limitation on the trigger member and the abutting plate 2131, under the elastic force of the door closer between the fireproof door body 100 and the doorframe, the fireproof door body 100 performs the automatic closing movement, meanwhile, in the process, the power mechanism 310 drives the input gear 324 to rotate and finally makes the output rack 323 perform the descending movement, the output rack 323 descends and pulls the pressing pin 327 to descend synchronously, the pressing pin 327 descends to apply a vertical downward acting force to the connecting rod 2132, the acting force presses the connecting rod 2132 and finally makes the abutting plate 2131 perform the retracting movement consistent with the closing of the fireproof door body 100, the pushing member 2130 does not affect the automatic closing of the fire door 100, after the fire door 100 is closed, the operator releases the kick pin 2213 to restore the reset closing mechanism 220 and the two sets of control members to the original state, and the power mechanism 310 runs in the reverse direction to restore the auxiliary device 300 to the original state.
Claims (10)
1. An emergency opening method of a fire door comprises the following steps:
firstly, opening a fireproof door;
s1: when a fire disaster happens, people push the door body of the fireproof door open, and meanwhile, the normally open device of the fireproof door is triggered to operate;
the fire door normally-open device is provided with two groups and respectively corresponds to two door plates of a fire door body, the fire door normally-open device comprises a limiting normally-open mechanism and a resetting closing mechanism, the limiting normally-open mechanism is arranged on an indoor ceiling and is close to a hinge between the fire door body and a door frame, the limiting normally-open mechanism comprises a cover shell, a fixed support, a control member and a pushing member, the cover shell is of a rectangular shell structure with one open end and one closed end, the cover shell is fixedly arranged on the ceiling, the open end of the cover shell faces an outdoor stairway, and the fixed support is fixedly arranged in the cover shell;
the control component comprises control pieces, each control piece comprises a control block, a control guide pillar, a control spring and a limiting block, the guide direction of the control guide pillar is parallel to the width direction of the door frame, the control guide pillar is movably arranged in the fixed support and can displace along the guide direction of the control guide pillar, the control block is fixedly arranged at the end part of the control guide pillar, the control spring is movably sleeved outside the control guide pillar, the limiting block is fixedly arranged on the side surface of the control block, which is far away from the control guide pillar, the lower end surface of the limiting block is a guide inclined surface, the distance between the guide inclined surface and the control block is increased along the height direction vertical to the ground from bottom to top, the upper end surface of the limiting block is a limiting plane which is horizontally arranged, the limiting blocks are provided with a plurality of groups along the height direction vertical to the ground, the control pieces are provided with two groups along, the elasticity of the control spring drives the two groups of control pieces to move close to each other;
the pushing component comprises a pushing plate, a connecting rod, a triggering part and a pushing part, wherein the large surface of the pushing plate is parallel to the plane of the door frame, the pushing plate is contacted with the fireproof door body, the large surface of the pushing plate, which is away from the stairway, is provided with a hinged bulge, the connecting rod is obliquely arranged between the pushing plate and the fixed support, the distance between the connecting rod and the ground is gradually decreased from the indoor direction to the stairway, one end of the connecting rod is hinged with the hinged bulge, the other end of the connecting rod passes through the opening end of the housing and the area between the two control parts and is connected with the fixed support in a hinged mode, the connecting rod is provided with two groups of hinged bulges in the direction vertical to the ground, the two groups of connecting rod, the two groups of hinged bulges and the fixed support form a parallelogram structure together, the triggering part is movably arranged outside the, the pushing piece is arranged between the two groups of connecting rods, one end of the pushing piece is hinged with the fixed support, and the other end of the pushing piece is hinged with the pushing plate;
when a fire disaster occurs and people need to escape from the stairway, the people push away the fireproof door body and rush towards the stairway, the fireproof door body is pushed to an open state from a closed state by people, the pushing piece can drive the pushing plate to move close to the stairway, and the pushing plate is always tightly attached to the fireproof door body;
(II) closing the fireproof door;
s2: after the conflagration was put out, the staff kicks the motion that resets closing mechanism and make two sets of controls of control member do each other and keep away from, make the free end of trigger piece break away from the spacing plane of stopper, under the door closer spring action between the fireproof door body and door frame, the fireproof door body is automatic closing motion, simultaneously this in-process, auxiliary device can apply a direction perpendicular decurrent effort to the connecting rod, this effort can press down the connecting rod and finally make to support the push pedal and do and prevent the fireproof door body and close unanimous return motion, support and push away the automatic closure that the component did not influence the fireproof door body, prevent that the fireproof door body closes the back that finishes, the staff loosens the closing mechanism that resets and can make and reset closing mechanism and control member resume to the original.
2. The emergency opening method for the fire door according to claim 1, wherein the triggering member includes a triggering sleeve and two triggering pins, the triggering sleeve is movably sleeved outside the connecting rod, the triggering sleeve and the connecting rod form a sliding guiding fit, the triggering pins are horizontally fixed outside the triggering sleeve, the free ends of the triggering pins are located on a limiting plane of the limiting block, and the two triggering pins are correspondingly arranged in two groups.
3. The emergency opening method of a fire door according to claim 1, wherein the pushing member is disposed between two sets of connecting rods, the pushing member includes a sliding sleeve, a sliding rod, and a pushing spring, the sliding sleeve is a cylindrical structure with one end open and one end closed, the closed end of the sliding sleeve is connected with the fixed bracket in a hinged manner, the core line of the hinged shaft is parallel to the door width direction of the door frame, and the hinged point between the sliding sleeve and the fixed bracket is located above the middle position of the hinged point between the two sets of connecting rods and the fixed bracket;
the large face of the pushing plate, which is away from the stair way, is also provided with a connecting bulge, the connecting bulge is positioned in the middle position between the two groups of hinged bulges, one end of the sliding rod is hinged with the connecting bulge, the core line of the hinged shaft is parallel to the door width direction of the door frame, the other end of the sliding rod penetrates through the opening end of the housing and the opening end of the sliding sleeve and is positioned in the sliding sleeve, the end of the sliding rod is provided with an external step, the external step and the sliding sleeve form sliding guide fit, and the opening end of the sliding sleeve is provided with an;
the pushing spring is in a compression state, the elastic force of the pushing spring is smaller than the elastic force of a door closer between the fireproof door body and the door frame, the pushing spring is movably sleeved outside the sliding rod, one end of the pushing spring is abutted against an internal step arranged at the opening end of the sliding sleeve, the other end of the pushing spring is abutted against an external step arranged at the end part of the sliding rod, and the elastic force of the pushing spring drives the sliding rod to move close to the closed end of the sliding sleeve.
4. The emergency opening method of a fire door according to claim 1, wherein the reset closing mechanism includes a kick reset member, a reset driving member, and a connecting member, the connecting member is used for connecting the kick reset member and the reset driving member, the kick reset member is used for being reset by a worker and transmitting the reset action to the reset driving member through a connecting rope, and the reset driving member is used for driving the control member to cancel the limitation of the abutting member by using the power generated by the kick reset action.
5. The emergency opening method of the fire door according to claim 4, wherein the kick resetting member is installed at a corner of the door body of the fire door, the kick resetting member comprises an installation shell, a fixing plate, a kick pin, a guide post and a resetting spring, the installation shell is fixedly installed at the corner, a sliding hole is formed in the side face of the installation shell, one end of the kick pin is located in the installation shell, the other end of the kick pin penetrates through the sliding hole and is located outside the installation shell, and the kick pin and the sliding hole form sliding guide fit;
the large surface of the fixing plate is vertical to the extending direction of the kick pin, and the fixing plate is fixed on the end part of the kick pin in the mounting shell;
the guide direction of the guide post is parallel to the extending direction of the kick pin, the guide post is fixed in the mounting shell, the free end of the guide post is provided with two groups of abutting steps, the fixing plate is also provided with guide holes penetrating through the thickness of the guide post and movably sleeved outside the guide post through the guide holes, the guide holes and the guide post form sliding guide fit, and the guide holes are correspondingly provided with two groups;
the guide post outside is located to reset spring movable sleeve, reset spring's one end is contradicted with the fixed plate, the other end is contradicted with the conflict step that sets up in the guide post free end, reset spring's elasticity orders about the fixed plate and is done the motion of keeping away from the conflict step, reset spring corresponds and is provided with two sets ofly.
6. The emergency opening method of a fire door according to claim 5, wherein the reset driving member is disposed in the housing, the reset driving member includes a push-pull member, a driving member, and a transmission member, the push-pull member includes a first guide rod, a movable bracket, a push-pull rack, a push-pull rope, and a pulley, the first guide rod is guided in a direction parallel to the width direction of the door frame and is fixed to the fixed bracket, the first guide rod is provided with two sets of guide rods, the movable bracket is movably mounted on the outside of the first guide rod and forms a sliding guide fit therebetween, the extending direction of the push-pull rack is parallel to the width direction of the door frame, and the push-pull rack is fixed to the movable;
the pulley is movably arranged on the fixed support and can rotate around the axial direction of the pulley, one end of the push-pull rope is fixedly connected with the push-pull rack, and the other end of the push-pull rope rounds a plurality of groups of pulleys and is fixedly connected with the control block;
the push-pull piece is provided with two groups of meshing teeth of two groups of push-pull racks along the height direction vertical to the ground, the two groups of meshing teeth are arranged on the side surfaces facing each other, and the two groups of push-pull ropes are respectively and fixedly connected with the control blocks of the two groups of control pieces;
the driving piece comprises a second guide rod, a sliding support, a driving rack and driving springs, the guiding direction of the second guide rod is parallel to the door width direction of the door frame, the second guide rod is fixed on the fixed support, the two guide rods are provided with two groups, the sliding support is movably arranged at the outer part of the second guide rod, the two groups of the guide rods form sliding guiding fit, the extending direction of the driving rack is parallel to the door width direction of the door frame, the driving rack is fixed on the sliding support, the driving springs are movably sleeved at the outer part of the second guide rod, one end of each driving spring is abutted against the fixed support, the other end of each driving spring is abutted against the sliding support, the elastic force of each driving spring drives the sliding support to displace along the guiding direction of the second;
the transmission part comprises a transmission shaft and transmission gears, the axial direction of the transmission shaft is parallel to the ground and perpendicular to the guiding direction of the first guide rod, the transmission shaft is movably mounted on the fixed support and can rotate around the axial direction of the transmission shaft, the transmission gears are coaxially fixed outside the transmission shaft, the transmission gears are provided with two groups and are respectively located at one end of the transmission shaft, one group of transmission gears are meshed with the driving rack, the other group of transmission gears are meshed with the push-pull racks of the two groups of push-pull parts, and when the driving spring drives the sliding support to move along the guiding direction of the second guide rod, the driving spring finally drives the two groups of transmission gears and the push-pull parts to be matched and enables the two groups.
7. The emergency opening method of a fire door as claimed in claim 6, wherein the connecting assembly comprises a plurality of sets of transition guide wheels and a connecting rope, the transition guide wheels are movably mounted on the fixing bracket, the door frame and the mounting housing, one end of the connecting rope is fixedly connected with the fixing plate, the other end of the connecting rope bypasses the plurality of sets of transition guide wheels and is fixedly connected with the driving rack, when the fixing plate is driven to move by the elastic force of the return spring, the fixing plate is driven to move synchronously by the traction of the connecting rope, and the moving direction of the driving rack is opposite to the moving direction of the driving rack driven by the driving spring;
the initial state of the driving spring is a compression state, the elastic coefficient of the driving spring is smaller than that of the reset spring, and the elastic coefficient of the driving spring is larger than that of the control spring.
8. The emergency opening method of a fire door according to claim 1, wherein the auxiliary device is installed in an interlayer of an indoor ceiling, the auxiliary device comprises a power mechanism and an auxiliary mechanism, the power mechanism is used for providing power for the operation of the auxiliary mechanism, and the auxiliary mechanism is used for driving the pushing member to retreat along with the door body of the fire door in the closing process of the door body of the fire door;
power unit include motor, pivot, the motor is fixed in the intermediate layer of indoor ceiling and its output shaft axial direction is on a parallel with the axial of transmission shaft, still be provided with the support frame in the indoor ceiling intermediate layer, the axial of pivot is on a parallel with the door width direction of door frame and pivot movable mounting can wind self axial rotation on the support frame, be provided with the power transmission component between motor and the pivot and carry out the power connection transmission through the power transmission component between the two, the power transmission component is turbine worm transmission structure.
9. The emergency opening method of a fire door according to claim 8, wherein the auxiliary mechanism includes auxiliary members, the auxiliary members include first guide rods, mounting brackets, output racks and input gears, the first guide rods are perpendicular to the ground and fixed in an indoor ceiling interlayer, the first guide rods are arranged in two groups, the mounting brackets are movably mounted on the outer portions of the first guide rods and form sliding guide fit therebetween, the output racks extend perpendicular to the ground and are fixedly mounted on the mounting brackets, the input gears are coaxially fixed on the outer portions of the rotating shafts, and the input gears are meshed with the output racks.
10. The emergency opening method of a fire door as claimed in claim 9, wherein the auxiliary mechanism further comprises a fixing rod, two guiding rods, and a pressing pin, the guiding direction of the two guiding rods is perpendicular to the ground and fixed on the fixing bracket, the two guiding rods are provided in two sets, the outer portion of the two guiding rods is movably mounted on the connecting bracket and forms a sliding guide fit therebetween, the fixing rod is vertically arranged, one end of the fixing rod is fixedly connected with the output rack, the other end of the fixing rod passes through the ceiling and the housing and is fixedly connected with the connecting bracket, and the pressing pin is vertically mounted on the connecting bracket and the free end of the pressing pin is located right above the connecting rod.
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| CN201910946186.2A CN110644875B (en) | 2019-10-03 | 2019-10-03 | Emergency opening method of fireproof door |
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| CN201910946186.2A CN110644875B (en) | 2019-10-03 | 2019-10-03 | Emergency opening method of fireproof door |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627650A (en) * | 2020-12-22 | 2021-04-09 | 山东文孚建筑设计有限公司 | Opening and closing structure of civil air defense engineering protective door |
| CN113184654A (en) * | 2021-04-18 | 2021-07-30 | 南京高等职业技术学校（江苏联合职业技术学院南京分院） | Corridor door emergency quick opening control system and control method for high-rise residence |
| CN115324468A (en) * | 2022-08-31 | 2022-11-11 | 安徽国防科技职业学院 | Flood control emergency water retaining method for building entrance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112627650A (en) * | 2020-12-22 | 2021-04-09 | 山东文孚建筑设计有限公司 | Opening and closing structure of civil air defense engineering protective door |
| CN113184654A (en) * | 2021-04-18 | 2021-07-30 | 南京高等职业技术学校（江苏联合职业技术学院南京分院） | Corridor door emergency quick opening control system and control method for high-rise residence |
| CN113184654B (en) * | 2021-04-18 | 2022-06-21 | 南京高等职业技术学校（江苏联合职业技术学院南京分院） | Corridor door emergency quick opening control system and control method for high-rise residence |
| CN115324468A (en) * | 2022-08-31 | 2022-11-11 | 安徽国防科技职业学院 | Flood control emergency water retaining method for building entrance |
| CN115324468B (en) * | 2022-08-31 | 2023-07-18 | 安徽国防科技职业学院 | Flood control emergency water retaining method for building entrance |
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