CN211647748U - Automatic control device for fireproof door - Google Patents

Abstract

The utility model discloses an automatic control device of a fireproof door, which comprises a track and is positioned at the rear side of the fireproof door; the push rod unit is movably connected with a door plate of the fireproof door; the driving part is provided with a driving mechanism and a one-way locking mechanism, and the driving mechanism is arranged on the track in a sliding manner and is connected with the push rod unit; the unidirectional locking mechanism comprises a unidirectional locking unit and a first blocking piece arranged corresponding to the unidirectional locking unit, wherein the unidirectional locking unit is provided with a second blocking piece rotatably arranged on the driving mechanism, a reset component connected with the second blocking piece, an iron block assembly rotatably arranged on the driving mechanism and an electromagnet assembly arranged corresponding to the iron block assembly; the electromagnet assembly is provided with a magnetic structure which attracts the iron block assembly after being electrified so that the iron block assembly is abutted with the lower end part of the second blocking piece far away from the rotation center of the second blocking piece when the second blocking piece is in contact with the first blocking piece; the utility model discloses can realize the automatic switch door and under the outage condition, personnel can manually open the door.

Description

Automatic control device for fireproof door

Technical Field

The utility model belongs to the technical field of the fire-proof equipment technique and specifically relates to a prevent fire door automatic control device.

Background

The fireproof door is a door which can meet the requirements of fire resistance stability, integrity and heat insulation within a certain time, has the functions of preventing fire spreading and smoke diffusion besides the functions of a common door, and can prevent the fire spreading within a certain time to ensure the evacuation of people; fire doors are generally classified into normally closed fire doors and normally open fire doors.

The door leaf of the fireproof door is always in a normally closed state through a mechanical door closer or an electric control door opening and closing mode, when the mechanical door closer is adopted, a person manually opens the fireproof door when passing through the fireproof door, and the door leaf is automatically closed through the back door, so that the problems of poor ventilation and lighting and inconvenience in passing can be caused, and the mechanical door closer cannot automatically control the opening and closing of the fireproof door; by adopting the ordinary electric control door opening and closing device, a person cannot manually open the door in the electric door closing process, and in the door opening state, if a fire disaster occurs, the electric control door opening and closing device cannot automatically close a fireproof door under the condition that a fire fighting system cuts off a power supply, and the person cannot manually open the door or the door opening resistance is large, so that a method capable of solving the problems needs to be found.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to overcome at least one of the above-mentioned drawbacks of the prior art, and the present invention provides an automatic control device for a fire door, comprising a rail located at the rear side of the fire door; the push rod unit is movably connected with the door plate of the fireproof door; the driving part is provided with a driving mechanism and a one-way locking mechanism, and the driving mechanism is arranged on the track in a sliding manner and is connected with the push rod unit; the one-way locking mechanism comprises a one-way locking unit and a first blocking piece arranged corresponding to the one-way locking unit, wherein the one-way locking unit is provided with a second blocking piece rotatably arranged on the driving mechanism, a reset component connected with the second blocking piece, an iron block assembly rotatably arranged on the driving mechanism and an electromagnet assembly arranged corresponding to the iron block assembly, and the rotation axis direction of the second blocking piece is the left-right direction; the reset member has a resilient structure that maintains the second blocking member in an upright state such that the second blocking member contacts the first blocking member when passing the first blocking member; the electromagnet assembly is provided with a magnetic structure which attracts the iron block assembly after being electrified so that the iron block assembly can be abutted against the front side of the upper end part or the rear side of the lower end part of the second blocking piece far away from the rotation center of the second blocking piece and the second blocking piece can not rotate anticlockwise; the first blocking piece and the one-way locking unit are correspondingly arranged, namely the first blocking piece is arranged at a preset position, so that when the driving mechanism passes through the preset position, the second blocking piece is in contact with the first blocking piece and is pushed by the first blocking piece to form a one-way overturning or blocked state; the preset position is that the driving mechanism can only pass in one direction when moving to the preset position at the preset position on the track.

According to the prior art in the background of the patent, when a mechanical door closer is adopted, the problems of poor ventilation and lighting and inconvenient passing can be caused, and the opening and closing of a fireproof door cannot be automatically controlled; the fire-fighting door is characterized in that a common electric control door opening and closing device is adopted, a person cannot manually open the door, and in the door opening state, if a fire occurs, the electric control door opening and closing device cannot automatically close a fire door under the condition that a fire-fighting system cuts off a power supply, and in the door closing state, the person cannot manually open the door or has large door opening resistance; the utility model discloses an automatic control device for a fireproof door, when the automatic control device works normally, the electromagnet and the driving mechanism are powered on, the iron block component is absorbed by the electromagnet, when the door is opened, the driving mechanism drives the push rod unit to move forward, the push rod unit is driven by reverse acting force to move backward to a preset position, the second blocking piece is contacted with the first blocking piece, because the lower end part of the second blocking piece is supported by the iron block component and can not turn over anticlockwise (namely the upper end part of the second blocking piece can not turn forward) and can be blocked by the first blocking piece, the driving part can not move backward continuously so as to drive the push rod unit to push the door panel forward, because the iron block component is only contacted with the lower end part of the second blocking piece, the second blocking piece can turn over clockwise (namely the upper end part of the second blocking piece turns backward), therefore, when the driving part moves forward from the rear side of the first blocking piece, the second blocking piece is in contact with the first blocking piece and is pushed by the first blocking piece to turn clockwise so as to be staggered with the first blocking piece, so that the fireproof door can pass through the first blocking piece and can continue to advance, and the fireproof door can be manually opened under any condition; moreover, when the power failure condition occurs in the door closing process, the electromagnet assembly does not attract the iron block assembly any more; such that the slug assembly no longer opposes the second stop; the person can push the door panel manually to make the driving part move backwards continuously so as to close the fireproof door.

Additionally, according to the utility model discloses a prevent fire door automatic control device still has following additional technical characterstic:

further, the lower end part of the second blocking member, which is far away from the rotation center of the second blocking member, is in contact with the first blocking member when the second blocking member passes through the first blocking member; the front side of the lower end part of the second blocking piece is provided with an obliquely downward structure.

The front side of the lower end part of the second blocking part is of a downward inclined structure, so that when the second blocking part passes through the first blocking part from the rear end of the first blocking part, the mutual pushing force between the second blocking part and the first blocking part is reduced, the door plate can be opened more easily, and the service lives of the first blocking part and the second blocking part are prolonged.

Further, the second blocking member contacts the first blocking member at an upper end portion thereof away from the rotation center thereof when passing through the first blocking member; the front side of the upper end portion of the second blocking member has an obliquely upward structure.

Further, the electromagnet assembly is arranged on the rear side of the iron block assembly, and after the electromagnet assembly is electrified, the iron block assembly is abutted against the front side of the second blocking piece; or the electromagnet assembly is arranged on the front side of the iron block assembly, and after the electromagnet assembly is electrified, the iron block assembly is abutted against the rear side of the second blocking piece.

Furthermore, the electromagnet assembly attracts the iron block assembly to overturn to be abutted against the electromagnet assembly.

Furthermore, the driving part also comprises a control box which is in communication connection with a control terminal and the driving mechanism and is used for receiving a control command of the control terminal and controlling the driving mechanism to act according to the control command, and a power supply module box which is used for supplying power to the control box, the driving mechanism and the electromagnet.

The door opening and closing instruction sent by the control terminal is remotely received by the control box to control the driving mechanism to open and close the door; the control terminal may be a computer communicatively connected to the control box.

Further, the automatic control device for the fireproof door further comprises: and the mechanical door closer is arranged on the front side of the fireproof door and connected with the door plate of the fireproof door.

Under the condition that the fire fighting system cuts off the power supply, the fire door is closed in time through the mechanical door closer.

Further, the driving part also comprises two sliding rods, and each sliding rod is arranged on the track in a sliding mode through a sliding assembly; the two sliding rods are respectively a front sliding rod and a rear sliding rod positioned at the rear side of the front sliding rod, and the front sliding rod is respectively and fixedly connected with the push rod unit and the driving mechanism; the rear sliding rod is fixedly provided with the driving mechanism.

Furthermore, the push rod unit comprises a left push rod and a right push rod; the front end of the left push rod is hinged with a left door plate of the fireproof door through a hinge, and the rear end of the left push rod is hinged with the front sliding rod through a hinge; the front end of the right push rod is hinged with a right door plate of the fireproof door through a hinge, and the rear end of the right push rod is hinged with the front sliding rod through a hinge.

Furthermore, the sliding assembly comprises a connecting plate, a roller wheel and two lateral wheels, wherein the roller wheel and the two lateral wheels are fixedly arranged on one side of the connecting plate and are arranged on the track in a sliding mode; the end part of the sliding rod is fixedly arranged on the other side of the connecting plate back to the roller.

In the manual door opening process, because the pulling force that receives of two door plants on the left and right sides is inhomogeneous, the push rod unit is to orbital one side beat, consequently sets up the slip subassembly in the both sides of slide bar, and the slip subassembly has two side directions and makes the side direction wheel in order to guarantee that whole mechanism operation is stable.

Furthermore, the cable support device further comprises a traveling cable support unit, wherein the traveling cable support unit comprises a traveling cable fixing chain and a traveling cable drag chain, the traveling cable fixing chain is fixedly arranged on the track and used for supporting a cable, the traveling cable drag chain is fixedly arranged on the driving portion, and a cable leading-out hole used for allowing the cable to pass is formed in the traveling cable drag chain.

Furthermore, the trailing cable drag chain is an L-shaped member composed of a vertical plate fixedly disposed on the other side of the connecting plate corresponding to the driving part and a horizontal plate vertically disposed on the lower side of the vertical plate, and the vertical plate is provided with a cable outlet hole for the cable to pass through; the cable support unit is a U-shaped piece consisting of two straight blocks and arc blocks connecting the end parts of the two straight blocks, one straight block is arranged in the zipper groove in a sliding mode, and the other straight block is arranged on the upper side of the horizontal plate.

Further, the driving mechanism comprises a mounting seat arranged on the rail in a sliding mode and a driving unit fixedly mounted on the mounting seat; the iron block assembly and the second blocking piece are rotatably installed on the installation seat, and the electromagnet assembly is fixedly installed on the installation seat.

Further, the driving unit is a push rod motor.

The push rod motor adopts a fully-sealed push rod motor, is provided with a metal shell and a stainless steel inner tube, has the thrust of 500 plus 800N and has the protection grade of IP 65.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an automatic control device for a fire door provided by the present invention;

fig. 2 is a schematic structural view of the unidirectional locking unit provided by the present invention; and

fig. 3 is a schematic structural diagram of the iron block mounting seat provided by the present invention.

The fire door lock comprises a rail 1, a fire door 2, a push rod unit 3, a driving part 4, a driving mechanism 5, a one-way locking mechanism 6, a one-way locking unit 7, a first blocking part 8, a second blocking part 9, a resetting mechanism 10, an iron block assembly 11, an electromagnet assembly 12, a door closer 13, a sliding assembly 14, a front sliding rod 15, a rear sliding rod 16, a connecting plate 17, a roller 18, a side wheel 19, a limiting plate 20, a traveling cable supporting unit 21, a traveling cable drag chain 22, a drag chain groove 23, an iron block mounting seat 24, an iron block 25, an electromagnet mounting plate 26, an electromagnet 27, a rotating shaft 28, a mounting seat 29 and a driving unit 30.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout; the embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "lateral", "vertical", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The utility model discloses a conceive as follows, when the second stops through first stopping, the second stops and first stopping touch, because the lower tip of second stopping is supported by the iron plate subassembly, the upper end of second stopping can not turn over forward and is stopped by first stopping, therefore the drive division can not continue to move backward, when the drive division moves forward from the rear end of first stopping, the second stops and first stopping touch and clockwise turn over under the promotion of first stopping and stagger with first stopping and pass through this first stopping and can continue to advance, and then make under any circumstances, prevent that fire door can all be opened by hand; moreover, when the power failure condition occurs in the door closing process, the electromagnet assembly does not attract the iron block assembly any more; such that the slug assembly no longer opposes the second stop; the person can push the door panel manually to make the driving part move backwards continuously so as to close the fireproof door.

Fig. 1 is a schematic structural view of an automatic control device for a fire door provided by the present invention; and fig. 2 is a schematic structural view of the unidirectional locking unit provided by the present invention.

As shown in the figures, according to the embodiment of the present invention, the automatic control device for the fire door comprises a rail 1 located at the rear side of a fire door 2; the push rod unit 3 is movably connected with the door plate of the fireproof door 2; the driving part 4 is provided with a driving mechanism 5 and a one-way locking mechanism 6, and the driving mechanism 5 is arranged on the track 1 in a sliding mode and is connected with the push rod unit 3; the one-way locking mechanism 6 comprises a one-way locking unit 7 and a first blocking piece 8 arranged corresponding to the one-way locking unit 7, wherein the one-way locking unit 7 is provided with a second blocking piece 9 rotatably arranged on the driving mechanism 5, a reset component 10 connected with the second blocking piece 9, an iron block assembly 11 rotatably arranged on the driving mechanism 5 and an electromagnet assembly 12 arranged corresponding to the iron block assembly 11, and the rotation axis direction of the second blocking piece 9 is the left-right direction; the return member 10 has a resilient structure that keeps the second blocking member 9 in an upright state so that the second blocking member 9 comes into contact with the first blocking member 8 when passing through the first blocking member 8; the electromagnet assembly 12 has a magnetic structure that attracts the iron block assembly 11 after energization so that the iron block assembly 11 can abut against the front side of the upper end portion or the rear side of the lower end portion of the second stopper 9 away from the rotation center thereof and the second stopper 9 cannot rotate counterclockwise; the first blocking piece 8 is arranged corresponding to the unidirectional locking unit 7, namely the first blocking piece 8 is arranged at a preset position, so that when the driving mechanism 5 passes through the preset position, the second blocking piece 9 is in contact with the first blocking piece 8 and is pushed by the first blocking piece 8 to form a unidirectional turning state or a blocked state; the predetermined position is a position preset on the track 1, and the driving mechanism 5 can only pass in one direction when moving to the predetermined position.

According to the prior art in the background of the patent, when the mechanical door closer 13 is adopted, the problems of poor ventilation and lighting and inconvenient passing can be caused, and the opening and closing of the fireproof door 2 cannot be automatically controlled; the common electric control door opening and closing device is adopted, so that a person cannot manually open the door, and in the door opening state, if a fire disaster occurs, the electric control door opening and closing device cannot automatically close the fireproof door 2 under the condition that a fire protection system cuts off a power supply, and in the door closing state, the person cannot manually open the door or has large door opening resistance; the utility model discloses an automatic control device for fire door, when working normally, the electromagnet, the driving mechanism 5 are electrified, the iron block component 11 is absorbed by the electromagnet, when opening the door, the driving mechanism 5 drives the push rod unit 3 to move forward, the push rod unit 3 drives the driving part 4 to move backward to the preset position by the reverse acting force of the door panel, the second blocking piece 9 is contacted with the first blocking piece 8, because the lower end part of the second blocking piece 9 is supported by the iron block component 11 and can not turn counterclockwise (namely, the upper end part of the second blocking piece 9 can not turn forward) and is blocked by the first blocking piece 8, the driving part 4 can not move backward continuously so as to drive the push rod unit 3 to push the door panel forward continuously, because the iron block component 11 is only supported and connected with the lower end part of the second blocking piece 9, the second blocking piece 9 can turn clockwise (namely, the upper end part of the second blocking piece 9 turns backward), therefore, when the driving part 4 moves forward from the rear end of the first stopper 8, the second stopper 9 collides with the first stopper 8 and is pushed by the first stopper 8 to turn clockwise to be staggered from the first stopper 8 so as to pass through the first stopper 8 and to be able to continue to advance, so that in any case, therefore, the fire door 2 can be manually opened whether the second stopper 9 is in front of the first stopper 8 or behind the first stopper 8, and after the second stopper 9 passes through the first stopper 8, the second stopper 9 is reset by the elastic force of the reset member 10 so that the driving part 4 still cannot pass through the first stopper 8 when moving backward; moreover, when a power failure condition occurs during the door closing process, the electromagnet assembly 12 no longer attracts the iron block assembly 11; so that the slug assembly 11 is no longer urged against the second stop 9; thereby personnel can make the drive division 4 continue the backward movement and close preventing fire door 2 by the manual door plant that promotes, and simple structure, with low costs, easily promote.

Additionally, according to the utility model discloses a prevent fire door automatic control device still has following additional technical characterstic:

according to an embodiment of the present invention, the rail 1 is provided on the wall behind the fire door 2 and extends in a direction perpendicular to the door panel of the fire door 2, for example, hanging from the ceiling behind the fire door 2.

According to some embodiments of the present invention, the second obstacle 9, when passing through the first obstacle 8, the lower end of the second obstacle 9 is in contact with the first obstacle 8; the front side of the lower end of the second blocking member 9 has a diagonally downward configuration.

The front side of the lower end part of the second blocking part 9 is arranged to be in a downward inclined structure, so that when the second blocking part 9 passes through the first blocking part 8 from the rear end of the first blocking part 8, the mutual pushing force between the second blocking part 9 and the first blocking part 8 is reduced, the door panel can be opened more easily, and the service lives of the first blocking part 8 and the second blocking part 9 are prolonged.

According to some embodiments of the present invention, the second obstacle 9, when passing through the first obstacle 8, the upper end of the second obstacle 9 is in contact with the first obstacle 8; the front side of the upper end of the second blocking member 9 has an obliquely upward configuration.

According to some embodiments of the present invention, the electromagnet assembly 12 is disposed at the rear side of the iron block assembly 11, and after the electromagnet assembly 12 is powered on, the iron block assembly 11 abuts against the front side of the second blocking member 9; or, the electromagnet assembly 12 is arranged at the front side of the iron block assembly 11, and after the electromagnet assembly 12 is electrified, the iron block assembly 11 is abutted against the rear side of the second blocking piece 9.

According to some embodiments of the present invention, the electromagnet assembly 12 attracts the iron block assembly 11 to overturn to and with the electromagnet assembly 12 abuts.

According to some embodiments of the present invention, the driving portion 4 further includes a control terminal and the driving mechanism 5 is connected in communication and is used for receiving the control command of the control terminal and controls the control box of the driving mechanism 5 according to the control command and a power supply module box for supplying power to the control box, the driving mechanism 5 and the electromagnet.

The door opening and closing instruction sent by the control terminal is remotely received by the control box to control the driving mechanism 5 to open and close the door; the control terminal may be a computer communicatively connected to the control box.

According to the utility model discloses a some embodiments, prevent fire door automatic control device and still include: and a mechanical door closer 13 disposed at a front side of the fire door 2 and connected to a door panel of the fire door 2.

The mechanical door closer 13 is a common door closer with an automatic door leaf closing function; when the fire fighting system is powered off, the mechanical door closer 13 automatically closes the fire door 2 in the open state in time.

According to the utility model discloses an embodiment, track 1's rear end is provided with prevents that the drive plate from breaking away from track 1's limiting plate 20.

According to some embodiments of the present invention, the driving portion 4 further comprises two sliding rods, each sliding rod is slidably disposed on the track 1 through a sliding assembly 14; the two slide bars are respectively a front slide bar 15 and a rear slide bar 16 positioned at the rear side of the front slide bar 15, and the front slide bar 15 is respectively fixedly connected with the push rod unit 3 and the driving mechanism 5; the driving mechanism 5 is fixedly arranged on the central part of the rear sliding rod 16.

According to some embodiments of the present invention, the pusher unit 3 comprises a left pusher and a right pusher; the front end of the left push rod is hinged with a left door plate of the fireproof door 2 through a hinge, and the rear end of the left push rod is hinged with the central part of the front sliding rod 15 through a hinge; the front end of the right push rod is hinged with the right door plate of the fireproof door 2 through a hinge, and the rear end of the right push rod is hinged with the central part of the front sliding rod 15 through a hinge.

According to an embodiment of the present invention, the number of the rails 1 is two, two of the rails 1 are arranged in parallel, and the rear ends of the two rails 1 are provided with the limiting plates 20 connecting the two rails 1; two ends of each sliding rod are respectively arranged on the corresponding track 1 in a sliding manner through the sliding assembly 14.

According to the utility model discloses an embodiment, track 1 and limiting plate 20 are steel structure.

According to some embodiments of the present invention, the sliding assembly 14 comprises a connecting plate 17 and a roller 18 and two lateral wheels 19 fixedly mounted on one side of the connecting plate 17 and slidably arranged on the track 1; the end of the slide rod is fixedly mounted on the other side of the connecting plate 17 facing away from the roller 18.

During the manual door opening process, due to the uneven pulling force on the left door panel and the right door panel, the push rod unit 3 deflects towards the track 1 on one side, so that the sliding assemblies 14 are arranged on two sides of the sliding rod, and the sliding assemblies 14 are provided with two lateral wheels 19 which run laterally to ensure the stable operation of the whole mechanism.

According to the utility model discloses a some embodiments still include retinue cable supporting element 21, retinue cable supporting element 21 is in including fixed the setting be used for supporting the retinue cable fixed chain and the fixed setting of cable on the track 1 and be in retinue cable tow chain 22 on the drive division 4, be provided with on the retinue cable tow chain 22 and be used for letting the cable that the cable passed draws forth the hole.

The cable is a cable of a driving mechanism, an electromagnet and the like.

According to an embodiment of the present invention, the trailing cable drag chain 22 is an L-shaped member formed by a vertical plate fixedly disposed on the other side of any one of the two connecting plates 17 corresponding to the driving part 4 and a horizontal plate vertically disposed on a lower side of the vertical plate, the vertical plate being provided with a cable outlet hole for the cable to pass through; the track 1 is provided with a towline groove 23 extending along the length direction of the track 1, the following cable supporting unit 21 is a U-shaped part formed by two straight blocks and arc blocks connecting the end parts of the two straight blocks, one straight block is arranged in the towline groove 23 in a sliding mode, and the other straight block is arranged on the upper side of the horizontal plate.

According to an embodiment of the present invention, the driving mechanism 5 includes a mounting seat 29 slidably disposed on the rail 1 and a driving unit 30 fixedly mounted on the mounting seat 29; the iron block assembly 11 and the second blocking piece 9 are rotatably installed on the installation seat 29, and the electromagnet assembly 12 is fixedly installed on the installation seat 29.

According to some embodiments of the present invention, the driving unit 30 is a push rod motor.

The push rod motor adopts a fully-sealed push rod motor, is provided with a metal shell and a stainless steel inner tube, has the thrust of 500 plus 800N and has the protection grade of IP 65.

According to one embodiment of the present invention, the iron block assembly 11 has an iron block mounting seat 24 for fixedly mounting on the moving member and an iron block 25 mounted on the iron block mounting seat 24.

According to one embodiment of the present invention, the electromagnet assembly 12 has an electromagnet mounting plate 26 for fixedly mounting on the moving member and an electromagnet 27 mounted on one side of the electromagnet mounting plate 26.

According to an embodiment of the present invention, the automatic fire door control device further comprises a rotating shaft assembly, the rotating shaft assembly comprises a rotating shaft mounting seat for mounting on the moving member and a rotating shaft 28 mounted on the rotating shaft mounting seat; the iron block assembly 11 and the second blocking member 9 are respectively rotatably mounted on the rotating shaft 28.

According to one embodiment of the present invention, the electromagnet assembly 12 is energized to attract the iron block assembly 11 to turn over so that the iron block 25 abuts against the electromagnet assembly 12.

According to an embodiment of the present invention, the iron block mounting seat 24 has an iron block mounting plate and two rotating shaft mounting plates vertically disposed on the iron block mounting plate and located at two sides of the iron block 25, the iron block 25 is mounted on the iron block mounting plate, the rotating shaft mounting plate is provided with a rotating shaft mounting hole, the rotating shaft 28 is mounted on the rotating shaft mounting hole, the one-way locking unit 7 has two second blocking members 9 and two reset members 10, the two second blocking members 9 are rotatably mounted on the rotating shaft 28 and located at two sides of the rotating shaft mounting plate, two sides of the rotating shaft mounting plate are further formed with extending structures extending to two sides of the rotating shaft mounting plate and abutting against end portions of the second blocking members 9 far away from the axis of the rotating shaft, and the two reset members 10 are correspondingly connected to the two blocking pieces, as shown in fig. 3.

According to an embodiment of the present invention, the upper end of the extension structure is lower than the lower end of the spindle mounting plate or the lower end of the extension structure is higher than the upper end of the spindle mounting plate.

According to an embodiment of the present invention, the first blocking member 8 is a cross beam straddling the two rails 1, the second blocking member 9 is a blocking piece, the mounting seat 29 is a box body, the driving unit 30 is installed in the box body, the rotating shaft mounting plate and the two blocking pieces are rotatably installed in the box body through the same rotating shaft 28, the lower end portions of the two blocking pieces are respectively located at the front sides of the two extending structures, and the iron block 25 is installed at the front side of the iron block mounting plate; the electromagnet assembly 12 is fixedly arranged in the box body and positioned on the front side of the iron block assembly 11, and the electromagnet 27 is arranged on the rear side of the electromagnet mounting plate 26; after the electromagnet assembly 12 is powered on, the iron block assembly 11 is attracted to overturn to abut against the electromagnet assembly 12 by taking the rotating shaft as a circle center, meanwhile, the front sides of the two extending structures respectively abut against the rear sides of the lower end parts of the two blocking pieces, and at the moment, the upper end parts of the blocking pieces are higher than the lower end surface of the horizontal part of the cross beam (namely, the middle part of the cross beam shown in fig. 2); the rest of the driving part 4 is lower than the lower end of the horizontal part of the beam, two reset members 10 are respectively installed at two ends of the rotating shaft 28, one end of each reset member 10 is connected to the corresponding blocking piece, and the other end of each reset member 10 is abutted against the rear side of the rear sliding rod 16, as shown in fig. 2.

According to one embodiment of the invention, the return member 10 is a torsion spring.

Any reference to "one embodiment," "an embodiment," "example embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention; the schematic representations in various places in the specification do not necessarily refer to the same embodiment; further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments.

While the invention has been described in detail with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention; in particular, reasonable variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the foregoing disclosure, the drawings and the appended claims without departing from the spirit of the invention; except variations and modifications in the component parts and/or arrangements, the scope of which is defined by the appended claims and equivalents thereof.

Claims (10)

1. An automatic control device for a fire door, comprising:

a rail located at a rear side of the fire door;

the push rod unit is movably connected with the door plate of the fireproof door;

the driving part is provided with a driving mechanism and a one-way locking mechanism, and the driving mechanism is arranged on the track in a sliding manner and is connected with the push rod unit; the one-way locking mechanism comprises a one-way locking unit and a first blocking piece arranged corresponding to the one-way locking unit,

the one-way locking unit is provided with a second blocking piece rotatably mounted on the driving mechanism, a reset component connected with the second blocking piece, an iron block assembly rotatably mounted on the driving mechanism and an electromagnet assembly arranged corresponding to the iron block assembly, and the reset component is provided with an elastic structure for keeping the second blocking piece in contact with the first blocking piece when passing through the first blocking piece; the electromagnet assembly is provided with a magnetic structure which attracts the iron block assembly after being electrified so that the iron block assembly can be abutted against the front side of the upper end part or the rear side of the lower end part of the second blocking piece, which is far away from the rotation center of the second blocking piece.

2. The automatic control device for a fire door according to claim 1, wherein the second blocking member contacts the first blocking member at a lower end portion thereof when passing through the first blocking member; the front side of the lower end part of the second blocking piece is provided with an obliquely downward structure.

3. The automatic control device for a fire door according to claim 1, wherein said second blocking member contacts with the first blocking member at an upper end thereof when passing through said first blocking member; the front side of the upper end portion of the second blocking member has an obliquely upward structure.

4. The automatic fire door control device according to claim 1, wherein the driving unit further includes a control box communicatively connected to a control terminal and the driving mechanism for receiving a control command from the control terminal and controlling the driving mechanism to operate according to the control command, and a power supply module box for supplying power to the control box, the driving mechanism, and the electromagnet.

5. The automatic control device for the fire door according to claim 1, further comprising:

and the mechanical door closer is arranged on the front side of the fireproof door and connected with the door plate of the fireproof door.

6. The automatic control device for the fire door according to claim 1, wherein said driving portion further comprises two sliding bars, each of said sliding bars is slidably disposed on said rail by a sliding assembly; the two sliding rods are respectively a front sliding rod and a rear sliding rod positioned at the rear side of the front sliding rod, and the front sliding rod is respectively and fixedly connected with the push rod unit and the driving mechanism; the rear sliding rod is fixedly provided with the driving mechanism; the sliding assembly comprises a connecting plate, a roller and two lateral wheels, wherein the roller and the two lateral wheels are fixedly arranged on one side of the connecting plate and are arranged on the track in a sliding manner; the end part of the sliding rod is fixedly arranged on the other side of the connecting plate back to the roller.

7. The automatic control device for fire door according to claim 6, wherein said pusher unit comprises a left pusher and a right pusher; the front end of the left push rod is hinged with a left door plate of the fireproof door through a hinge, and the rear end of the left push rod is hinged with the front sliding rod through a hinge; the front end of the right push rod is hinged with a right door plate of the fireproof door through a hinge, and the rear end of the right push rod is hinged with the front sliding rod through a hinge.

8. The automatic control device for the fire door according to claim 6, further comprising a traveling cable support unit, wherein the traveling cable support unit comprises a traveling cable fixing chain slidably disposed on the rail for supporting a cable and a traveling cable drag chain fixedly disposed on the driving portion, and the traveling cable drag chain is provided with a cable exit hole for the cable to pass through.

9. The automatic control device for a fire door according to claim 8, wherein the trailing cable drag chain is an L-shaped member formed of a vertical plate fixedly provided on the other side of the connecting plate corresponding to the driving part and a horizontal plate vertically provided on a lower side of the vertical plate, the vertical plate being provided with a cable exit hole for passing the cable therethrough; the cable support unit is a U-shaped piece consisting of two straight blocks and arc blocks connecting the end parts of the two straight blocks, one straight block is arranged in the zipper groove in a sliding mode, and the other straight block is arranged on the upper side of the horizontal plate.

10. The automatic control device for the fire door according to claim 1, wherein the driving mechanism comprises a mounting seat slidably disposed on the rail and a driving unit fixedly mounted on the mounting seat; the iron block assembly and the second blocking piece are rotatably installed on the installation seat, and the electromagnet assembly is fixedly installed on the installation seat.

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