CN116816198A - Protective airtight door and opening and closing method thereof - Google Patents

Abstract

The invention discloses a protective airtight door, which comprises a locking device, a first right identification device, a controller and a second right identification device, wherein the locking device is arranged on a door leaf and comprises a locking driving piece and a locking head, the locking driving piece comprises a driving motor and a hand wheel, the driving motor and the hand wheel are both connected with the locking head and can be used for driving the locking head to stretch to enter and exit a lock hole of a door frame; the first permission identification device is used for sending a signal to the controller after acquiring the permission of the authorizer, and the controller is used for automatically controlling the driving motor to operate after the authorization is passed according to the signal; the second right identification device is arranged at the connection position between the hand wheel and the locking head and is used for opening the connection position between the hand wheel and the locking head after being manually opened by an authorized person. The protective airtight door disclosed by the invention has the advantages that manual and automatic double operations do not interfere with each other, so that the reliability of the door control is ensured, and the protective airtight door is applicable to the power-off condition. The invention also provides a method for opening and closing the protective airtight door.

Description

Protective airtight door and opening and closing method thereof

Technical Field

The invention particularly relates to a protective airtight door and an opening and closing method thereof.

Background

Traditional guard gate manual operation is wasted time and energy, and the process of opening and close is longer, and is difficult to guarantee entrance guard reliability, does not possess the manual unauthorized measure of opening the door in reliable guard gate outside, has a great deal of defect, consequently along with the development of age, appears by the trend that electric control guard gate replaced, electric control guard gate's demand is increasingly greater.

However, the electric control protective door in the current market is difficult to automatically execute locking and unlocking actions under the condition of outage, so that when the outage is caused once an accident occurs, the protective door is difficult to finish opening at the first time, an external worker is difficult to check and repair, and once the protective door is opened, locking cannot be realized, and the due protective effect cannot be achieved.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art, and provides the protective airtight door which is manually and automatically operated in double ways without interference, so that the reliability of the door control is ensured, and the door control is applicable to the power-off condition. The invention also provides a method for opening and closing the protective airtight door.

The invention provides a protective airtight door, which comprises a locking device, a first right identification device, a controller and a second right identification device, wherein the locking device is arranged on a door leaf and used for locking and unlocking the door leaf and a door frame, the locking device comprises a locking driving piece and a locking head, the locking driving piece comprises a driving motor and a hand wheel, the driving motor and the hand wheel are both connected with the locking head and can be used for driving the locking head to stretch to enter and exit a lock hole of the door frame; the controller is electrically connected with the driving motor and the first permission identification device, the first permission identification device is used for sending a signal to the controller after acquiring the permission of the authorizer, and the controller is used for automatically controlling the driving motor to operate after the authorization is passed according to the signal; the hand wheel is detachably connected with the locking head, a second right identification device is arranged at the connection position and used for opening the connection position between the hand wheel and the locking head after being manually opened by an authorized person, so that the hand wheel is allowed to be connected with the locking head.

Preferably, the second right identifying device comprises a protective cover, the protective cover is arranged at a connecting position between the hand wheel and the locking head, a lock allowing an authorized person to manually open is arranged on the protective cover, and the protective cover is used for opening the connecting position after the lock is opened, so that the hand wheel is allowed to be connected with the locking head.

The locking device further comprises a connecting assembly, the driving motor and the hand wheel are connected with the locking head through the connecting assembly, the input end of the connecting assembly, which is used for connecting the hand wheel, is a square shaft, square holes are formed in the hand wheel, and the hand wheel is connected with the input end through the square shaft in a sleeved mode.

Preferably, the two handwheels are arranged at the opposite positions of the inner side and the outer side of the door leaf respectively, the connecting assembly comprises a first commutator and a transmission mechanism, the first commutator is provided with an output end and two input ends, the two input ends are respectively used for connecting the two handwheels, the output ends are connected with the transmission mechanism, and the transmission mechanism is connected with the locking head and used for outputting the inputted rotary driving to be telescopic driving so as to drive the locking head to stretch out and draw back.

Preferably, the input end of the transmission mechanism is provided with a second reverser/decelerator, the second reverser/decelerator is provided with two input ends, one input end is connected with the output end of the first reverser, and the other input end is connected with the output end of the driving motor.

Preferably, the transmission mechanism further comprises a screw rod and a screw sleeve, the screw rod is connected with the output end of the second commutator/reducer, the screw sleeve is in threaded sleeve connection with the outside of the screw rod, the locking head is connected with the screw sleeve, and the screw rod rotates under the driving of the locking driving piece, so that the screw sleeve is driven to drive the locking head to move to realize expansion.

Preferably, the protective airtight door further comprises a protective door leaf and a pedestrian door leaf, wherein the protective door leaf is provided with at least one door, the protective door leaf is connected with and seals the protective door frame, the at least one protective door leaf is provided with a hollowed-out area, the edge of the hollowed-out area is used as a pedestrian door frame, the pedestrian door leaf is connected with and seals the pedestrian door frame, the protective door leaf and the pedestrian door leaf are respectively provided with locking devices, and each locking device is respectively used for locking and opening the protective door leaf and the protective door frame and locking and opening the pedestrian door leaf and the pedestrian door frame.

Preferably, the protection door leaf is connected with the protection door frame through an electric hinge, the electric hinge comprises a hinge shaft, an opening and closing driving piece and an electromagnetic clutch, the protection door leaf is connected with the protection door frame through the hinge shaft in a hinged mode, the opening and closing driving piece is connected with the hinge shaft through the electromagnetic clutch and is used for driving the hinge shaft to drive the protection door leaf to rotate to realize opening and closing in an electromagnetic clutch power-on state, and the protection door leaf freely rotates around the hinge shaft to realize opening and closing in an electromagnetic clutch power-off state.

Preferably, the pedestrian door leaf is hinged with the pedestrian door frame, and the pedestrian door leaf and the pedestrian door frame are connected through an electric door opener, the electric door opener drives the pedestrian door leaf to rotate around the hinged position to realize opening and closing in an electrified state, and the pedestrian door leaf freely rotates around the hinged position to realize opening and closing in a power-off state.

The invention also provides a method for opening and closing the protective airtight door, which is used for opening and closing the protective airtight door and comprises the following steps: the first authority identification device acquires the authority of an authorizer and sends a signal to the controller, and the controller controls the driving motor to drive the locking device to be opened/locked after the authorization is passed according to the signal; and the step of switching off and switching on is carried out in a power-off state, the second right identification device is manually opened by an authorized person, so that the connection position between the hand wheel and the locking head is opened, the hand wheel is installed by the authorized person, and the locking device is driven to be opened/locked by manually rotating the hand wheel.

The invention provides a protective airtight door, wherein a locking device is driven to open and close by a locking driving piece, and the locking driving piece comprises a driving motor and a hand wheel, namely an automatic driving piece and a manual driving piece, which are different from the conventional technical scheme. Under the electrified state, the driving motor can automatically drive the door leaf to lock or unlock, so that the time and the labor are saved, and the automation degree is high; in the power-off state or the driving motor fault state, a person can manually drive the door leaf to lock or unlock through the hand wheel, so that the defect of an automatic protective door is overcome, and the delay of the transaction processing time is avoided. Therefore, the protective airtight door not only has the advantages of an automatic protective door and a manual protective door, but also avoids the defect of the automatic protective door and the manual protective door, and can be flexibly operated to open and close under various working conditions.

More importantly, the automatic driving piece and the manual driving piece of the protective airtight door have an access control function. The driving motor is driven to start and stop through the first permission identification device and the controller, and in the electrified state, various electronic devices can normally operate, so that the permission of an authorizer can be acquired through the first permission identification device, then a signal is sent to the controller by the first permission identification device, and the controller can automatically control the driving motor to operate after the authorizer passes through the permission, so that an automatic door opening function is realized.

In the power-off state and the fault state, the first permission identification device and the controller may not realize corresponding functions, the driving motor may not perform driving output, so that the door leaf needs to be driven by the hand wheel to open or close, at the moment, permission can be identified through the second permission identification device.

In the setting mode, the protective airtight door needs to be opened through permission identification no matter which opening mode is adopted, so that unauthorized persons are prevented from passing through the protective airtight door, the door control reliability is high, the protective measures are good, and the protective airtight performance and the safety are guaranteed.

Drawings

FIG. 1 is a schematic view of a protective airtight door in embodiment 1 of the present invention;

FIG. 2 is a schematic view showing another structure of the protective airtight door in embodiment 1 of the present invention;

FIG. 3 is a schematic front view of a locking device of a protective airtight door in embodiment 1 of the present invention;

FIG. 4 is a schematic side view of a blocking device of a protective airtight door in embodiment 1 of the present invention;

FIG. 5 is a schematic view showing another locking device of the protective airtight door in embodiment 1 of the present invention;

fig. 6 is a schematic structural view of a protective cover for protecting a hermetic door in embodiment 1 of the present invention;

FIG. 7 is a schematic cross-sectional view of a protective cover for a protective airtight door in embodiment 1 of the present invention;

fig. 8 is a schematic structural view of a hand wheel of the protective airtight door in embodiment 1 of the present invention;

FIG. 9 is a schematic cross-sectional view of a hand wheel of the protective airtight door of embodiment 1 of the present invention;

fig. 10 is a schematic structural view of an electric hinge of a protective airtight door in embodiment 1 of the present invention;

FIG. 11 is a schematic view showing the connection position of a pedestrian door leaf of a protective airtight door in embodiment 1 of the present invention;

fig. 12 is a schematic view showing the external structure of a pedestrian door leaf of the protective airtight door in embodiment 1 of the present invention;

fig. 13 is a flow chart of the opening and closing method of the pedestrian door leaf of the protective airtight door in embodiment 2 of the present invention.

In the figure: 1. a locking device; 11. a latch driver; 111. a driving motor; 112. a hand wheel; 1121. square holes; 12. a locking head; 13. a connection assembly; 131. a first commutator; 132. a transmission mechanism; 1321. a second commutator; 1322. a speed reducer; 1323. a screw rod; 1324. a screw sleeve; 1325. a slide; 1326. a pull rod; 1327. a lever; 1328. a sliding bearing; 1329. a third sensor; 14. a locking seat; 2. a protective cover; 21. a lock; 3. a protective door leaf; 4. a pedestrian door leaf; 5. a protective door frame; 6. a pedestrian door frame; 7. electric hinge; 71. a hinge shaft; 711. a load-bearing arm; 72. an opening and closing driving member; 73. an electromagnetic clutch; 74. hinge seat; 75. a second sensor; 8. an electric door opener.

Detailed Description

The following description of the embodiments of the present invention will be made more apparent, and the embodiments described in detail, but not necessarily all, in connection with the accompanying drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.

In the description of the present invention, it should be noted that, the terms "upper," "lower," and the like indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, and are merely for convenience and simplicity of description, and do not indicate or imply that the apparatus or element in question must be provided with a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "configured," "mounted," "secured," and the like are to be construed broadly and may be either fixedly connected or detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.

Example 1

As shown in fig. 1 to 5, the protective airtight door of the present embodiment includes a locking device 1, a first right recognition device, a controller and a second right recognition device, where the locking device 1 is installed on a door leaf and is used for locking and unlocking the door leaf and a door frame, the locking device 1 includes a locking driving piece 11 and a locking head 12, the locking driving piece 11 includes a driving motor 111 and a hand wheel 112, the driving motor 111 and the hand wheel 112 are both connected with the locking head 12, and can be used for driving the locking head 12 to stretch and retract to enter and exit a lock hole of the door frame; the controller is electrically connected with the driving motor 111 and the first authority identification device, the first authority identification device is used for sending a signal to the controller after acquiring the authority of the authorizer, and the controller is used for automatically controlling the driving motor 111 to operate after the authorization is passed according to the signal; the hand wheel 112 is detachably connected with the locking head 12, and a second right identification device is arranged at the connection position and is used for opening the connection position between the hand wheel 112 and the locking head 12 after being manually opened by an authorized person, so that the hand wheel 112 is allowed to be connected with the locking head 12.

Unlike the conventional technical scheme, the locking driving member 11 includes a driving motor 111 and a hand wheel 112, i.e. includes an automatic driving member and a manual driving member. In the electrified state, the driving motor 111 can automatically drive the door leaf to be locked or unlocked, so that time and labor are saved, and the automation degree is high; in the power-off state or the failure state of the driving motor 111, the operator can manually drive the door leaf to lock or unlock through the hand wheel 112, so that the defect of the automatic protective door is overcome, and the delay of the transaction opportunity is avoided. Therefore, the protective airtight door not only has the advantages of an automatic protective door and a manual protective door, but also avoids the defect of the automatic protective door and the manual protective door, and can be flexibly operated to open and close under various working conditions.

More importantly, the automatic driving piece and the manual driving piece of the protective airtight door have an access control function. The driving motor 111 is driven to start and stop by the first permission recognition device and the controller, and in the electrified state, various electronic devices can normally operate, so that the permission of an authorizer can be obtained by the first permission recognition device, then a signal is sent to the controller by the first permission recognition device, and the controller can automatically control the driving motor 111 to operate after the authorizer passes the permission, so that an automatic door opening function is realized.

In the power-off state and the fault state, the first permission identification device and the controller may not be capable of realizing the corresponding functions, and the driving motor 111 may not be capable of executing the driving output, so that the driving motor is required to drive the door leaf to open or close by the hand wheel 112, at this time, the permission can be identified by the second permission identification device, specifically, in the initial state, the hand wheel 112 is detached from the connection position and is placed in the tool box to be stored by an authorized person, and the connection position is provided with the second permission identification device, after the second permission identification device is manually opened by the authorized person, the connection position between the hand wheel 112 and the locking head 12 is opened, thereby allowing the authorized person to manually operate the hand wheel 112 to connect the locking head 12, and then the hand wheel 112 is manually rotated to realize the door leaf opening or closing.

In the setting mode, the second permission identification device is opened by manual operation and is not opened electrically, so that the second permission identification device cannot be influenced by power failure or faults, the protective airtight door is required to be opened by permission identification no matter which opening mode is adopted, unauthorized persons are prevented from passing through, the access control reliability is high, the protective measures are good, and the protective airtight performance and the safety are guaranteed.

In this embodiment, as shown in fig. 6 and 7, the second permission identifying device specifically includes a protection cover 2, where the protection cover 2 is covered at a connection position between the hand wheel 112 and the locking head 12, and a lock 21 that allows an authorized person to manually open is provided on the protection cover 2. Under normal working conditions, the lock 21 is locked, the protective cover 2 is in a closed state, and the driving motor 111 can normally operate, so that the protective cover 2 does not need to be opened, and under the condition that manual opening is needed, the protective cover 2 is used for opening a connecting position after the lock 21 is opened, so that the hand wheel 112 is allowed to be connected with the lock head 12, namely, in the manual opening process, an authorized person not only needs to have a key for opening the lock 21, but also needs to carry the hand wheel 112, and under the condition that an access control function is guaranteed, the access control reliability is further improved.

In this embodiment, the first permission identification device may be a conventional permission identification device such as a card reader for identifying an access card or a face recognition device, and in this embodiment, the face recognition device is used. The controller adopts a PLC controller.

In this embodiment, the locking device 1 further includes a connection assembly 13, the driving motor 111 and the hand wheel 112 are both connected with the locking head 12 through the connection assembly 13, the input end of the connection assembly 13 for connecting the hand wheel 112 is a square shaft, a square hole 1121 is formed in the hand wheel 112, and the hand wheel 112 is connected with the input end through the square shaft sleeved by the square hole 1121. As shown in fig. 8 and 9, the square shaft and the square hole 1121 can be axially coupled to each other, so that the connection can be easily installed, and the torque can be transmitted through the square structure, thereby transmitting the manual driving force.

In this embodiment, two handwheels 112 are provided, which are respectively disposed at opposite positions on the inner side and the outer side of the door leaf, and the connecting assembly 13 includes a first commutator 131 and a transmission mechanism 132, where the first commutator 131 is provided with an output end and two input ends, the two input ends are respectively used for connecting the two handwheels 112, the output ends are connected with the transmission mechanism 132, and the transmission mechanism 132 is connected with the locking head 12, and is used for outputting the inputted rotation driving as telescopic driving so as to drive the locking head 12 to stretch. In this kind of setting mode, operating personnel can both manually open the door leaf from the door in with the door is outside, uses more nimble, is applicable to various emergency.

In this embodiment, can only set up protection casing 2 in the hand wheel 112 department in the door leaf outside, inboard hand wheel 112 does not set up right recognition device, and this setting method is more reasonable, and the inside personnel of because entering door leaf must be the personnel that have passed through the authorization, goes out to go out to the door and need not verify once more, and in case inside emergence accident, the personnel can in time operate hand wheel 112 and open the door, further improves the security.

In the present embodiment, the input end of the transmission mechanism 132 is provided with a second reverser 1321/decelerator 1322, and the second reverser 1321 and the decelerator 1322 have reversing functions, and a plurality of input ends can be provided, so that the present embodiment is suitable for the transmission mechanism 132. The second reverser 1321/decelerator 1322 is provided with two input ends, one input end is connected with the output end of the first reverser 131, and the other input end is connected with the output end of the driving motor 111, and through the second reverser 1321/decelerator 1322, both manual driving and automatic driving can be ensured to be connected with the locking head 12, and the manual driving and the automatic driving do not interfere with each other.

In this embodiment, the transmission mechanism 132 further includes a screw rod 1323 and a screw sleeve 1324, the screw rod 1323 is connected to the output end of the second reverser 1321/the reducer 1322, the screw sleeve 1324 is screwed and sleeved outside the screw rod 1323, the locking head 12 is connected to the screw sleeve 1324, and the screw rod 1323 rotates under the driving of the locking driving piece 11, so that the screw sleeve 1324 is driven to drive the locking head 12 to move to realize expansion.

In this embodiment, as shown in fig. 1, 11 and 12, the protective airtight door further includes a protective door leaf 3 and a pedestrian door leaf 4, where the protective door leaf 3 is provided with at least one door leaf, and connects and plugs the protective door frame 5, as an entrance of a large-scale device or a workpiece, and at least one door leaf 3 is provided with a hollowed-out area, the edge of the hollowed-out area is used as a pedestrian door frame 6, and the pedestrian door leaf 4 connects and plugs the pedestrian door frame 6, as an entrance of a person. The equipment and personnel adopt two door leaves business turn over respectively, so the personnel no longer need open great protection door leaf 3 when passing, and small-size pedestrian door leaf 4 opens and closes convenient and fast more, improves and opens and close efficiency, can also save the drive source simultaneously. And the pedestrian door leaf 4 is arranged on the protective door leaf 3 without additionally arranging a door opening, so that the damage to the wall is less, and meanwhile, the production cost of the door leaf is reduced.

In this embodiment, the protection door leaf 3 and the pedestrian door leaf 4 are provided with locking devices 1, and each locking device 1 is used for locking and unlocking the protection door leaf 3 and the protection door frame 5, and locking and unlocking the pedestrian door leaf 4 and the pedestrian door frame 6 respectively. In this embodiment, the locking devices 1 on the protective door leaf 3 and the pedestrian door leaf 4 are opened by different first right recognition devices, i.e. the gate and the small gate are controlled by two different face recognition devices respectively.

In this embodiment, as shown in fig. 10, the protective door leaf 3 and the protective door frame 5 are connected by an electric hinge 7, and the electric hinge 7 includes a hinge shaft 71, an opening and closing driving member 72, an electromagnetic clutch 73, and two hinge seats 74. The protective door leaf 3 is hinged with the protective door frame 5 through a hinge shaft 71, specifically, two hinge seats 74 are arranged on the wall beside the protective door frame 5 one by one, the hinge shaft 71 can be rotatably connected on the hinge seats 74, and the protective door leaf 3 is connected with the hinge shaft 71 through a bearing arm 711 arranged on the hinge shaft 71.

The opening and closing driving member 72 is connected to the hinge shaft 71 through an electromagnetic clutch 73, the electromagnetic clutch 73 is electrically driven to be turned on and off, the opening and closing driving member 72 and the hinge shaft 71 are turned on in an energized state, and the opening and closing driving member 72 and the hinge shaft 71 are turned off in a de-energized state. Therefore, the opening and closing driving piece 72 is used for driving the hinge shaft 71 to drive the protective door leaf 3 to rotate to realize opening and closing under the electrified state of the electromagnetic clutch 73, and manual pushing or pushing by other equipment is not needed, so that time and labor are saved; the protection door leaf 3 freely rotates around the hinge shaft 71 to realize opening and closing in the power-off state of the electromagnetic clutch 73, so that the protection door leaf 3 is prevented from being opened and closed in the power-off state, and the door leaf is ensured to be opened and closed freely in the power-off state. In this embodiment, the opening and closing driving member 72 is a gear motor, and may be electrically connected to the controller, and the electromagnetic clutch 73 may be connected to the hinge shaft 71 by a coupling.

In this embodiment, the locking device 1 of the protective door leaf 3 is integrally disposed on a vertical axis, and further includes a locking seat 14 disposed at an upper edge of the protective door frame 5, where the locking seat 14 is connected to the first commutator 131 through a connecting rod, and is used for providing a supporting force, and the locking driving member 11 drives the locking head 12 to extend downward and retract into and out of a locking hole at a lower edge of the protective door frame 5.

In the locking device 1 of the protective door leaf 3, the transmission mechanism 132 comprises a speed reducer 1322, a screw rod 1323 and a screw sleeve 1324, the screw rod 1323 is connected with the output end of the speed reducer 1322, the screw sleeve 1324 is in threaded sleeve connection with the outside of the screw rod 1323, the locking head 12 is connected with the screw sleeve 1324, the screw rod 1323 rotates under the driving of the locking driving piece 11, and therefore the screw sleeve 1324 is driven to drive the locking head 12 to move to realize expansion.

In this embodiment, the locking head 12 or the lock hole of the protection door leaf 3 may be provided with a first sensor for sensing whether the locking head 12 is in the extended position or the retracted position, and the first sensor is electrically connected with the controller, so as to facilitate the controller to determine whether the protection door leaf 3 is in the locked state, and the electric hinge 7 may also be provided with a second sensor 75 for sensing whether the protection door leaf 3 is in the closed position or the open position, and the second sensor 75 is electrically connected with the controller, so as to facilitate the controller to determine the open/close state of the protection door leaf 3.

In this embodiment, the door leaf 4 is hinged to the door frame 6, and the door leaf 4 and the door frame are connected through the electric door opener 8, the electric door opener 8 is located at the upper edge of the door leaf 4, and in the power-on state, the door leaf 4 is driven to rotate around the hinge to realize opening and closing, and in the power-off state, the electric door opener 8 unloads the force, i.e. does not output driving force outwards, and the door leaf 4 is free to rotate around the hinge to realize opening and closing. In this embodiment, the electric door opener 8 may be electrically connected to the controller, and the controller controls the electric door opener 8 to start or stop, and the structure and principle of the electric door opener 8 are conventional devices in the market and are not described in detail herein.

In this embodiment, in the locking device 1 of the pedestrian door leaf 4, the transmission mechanism 132 includes a second reverser 1321, a screw rod 1323, a threaded sleeve 1324, a sliding seat 1325, a pull rod 1326, a lever 1327 and a sliding bearing 1328, the screw rod 1323 is connected to the output end of the second reverser 1321 through a coupling, the threaded sleeve 1324 is in threaded sleeve connection with the outside of the screw rod 1323, and the locking head 12 is indirectly connected to the threaded sleeve 1324. Specifically, the threaded sleeve 1324 and the screw rod 1323 are arranged along the horizontal direction, the threaded sleeve 1324 is slidably arranged in the sliding seat 1325 along the horizontal direction, a pull rod 1326 is connected to the threaded sleeve 1324, the middle part of the lever 1327 is hinged on the pedestrian door leaf 4, one end of the lever 1326 is connected, the other end of the lever 1326 is connected with the locking head 12, and the locking head 12 is slidably arranged in the sliding bearing 1328 along the horizontal direction and is used for entering and exiting a lock hole arranged on the side edge of the pedestrian door frame 6. The screw rod 1323 rotates under the driving of the locking driving piece 11, so that the threaded sleeve 1324 is driven to drive the pull rod 1326 to horizontally move, the lever 1327 is driven to rotate around the hinge, and the locking head 12 is driven to horizontally move to realize expansion and contraction.

In this embodiment, a third sensor 1329 may be disposed at the pull rod 1326 of the door leaf 4, for sensing whether the locking head 12 is in the extended position or the retracted position, where the third sensor 1329 is electrically connected to the controller, so that the controller is convenient to determine whether the door leaf 4 is in the locked state; the fourth sensor can be further arranged at the position of the body of the pedestrian door leaf 4 or the electric door opener 8 and used for sensing whether the pedestrian door leaf 4 is at a door closing position or a door opening position, and the fourth sensor is electrically connected with the controller, so that the controller can conveniently judge the opening and closing state of the pedestrian door leaf 4.

In this embodiment, a pressure sensor may be further disposed in the electric door opener 8, where the pressure sensor is electrically connected to the controller, and when the electric door opener 8 performs door opening and closing, and encounters a blockage, the pressure received by the pressure sensor is greater than a set pressure, and the controller may determine whether the electric door opener 8 is blocked according to the set pressure.

In this embodiment, the second sensor 75 and the fourth sensor may be angle sensors, the first sensor and the third sensor 1329 may be position sensors, contact sensors or proximity sensors, and the controller may further configure an audible and visual alarm or an information alarm, so as to conveniently send various alarm signals to prompt the staff to process in time.

Example 2

The opening and closing method of the protective airtight door of this embodiment is used for opening and closing the protective airtight door in embodiment 1, and includes:

a power-on/off step, performed in a power-on state, of acquiring the authority of the authorizer by the first authority identification device and sending a signal to the controller, wherein the controller controls the driving motor 111 to drive the locking device 1 to be unlocked/locked after the authorization is passed according to the signal;

the step of opening and closing the power-off is performed in the power-off state, the second right identifying device is manually opened by an authorized person, so that the connection position between the hand wheel 112 and the locking head 12 is opened, the hand wheel 112 is installed by the authorized person, and the locking device 1 is driven to be opened/locked by manually rotating the hand wheel 112.

In this embodiment, taking opening and closing of the pedestrian door leaf 4 (abbreviated as a small door or a pedestrian small door in the drawing, because the protective door leaf 3 in this embodiment is a double-open door, the pedestrian door leaf 4 is disposed on a left fan thereof, and therefore the protective door leaf 3 in which the pedestrian door leaf 4 is located in the drawing is the left fan), the step of opening and closing the protective airtight door by energizing is shown in fig. 13, specifically as follows:

the first permission identification device acquires the permission of an authorizer and sends a signal to the controller, and the authorizer can perform permission identification by swiping an access card and the like;

after receiving the signal, the controller firstly judges whether the protective door leaf 3 where the pedestrian door leaf 4 is located is at the closing position through the second sensor 75, and if the protective door leaf 3 is not at the closing position, an error alarm of 'the protective door leaf 3 is not closed' is sent; if the protective door 3 is in the closed position, continuing to judge whether the locking head 12 of the protective door 3 is in the extended position through the first sensor, and if the protective door is not in the extended position (namely, the protective door is not locked), giving an error alarm of 'the protective door 3 is locked and not extended'; if the protective door leaf 3 is in the closed position and the blocking head 12 is in the extended position, the controller starts to control the opening of the door leaf 4, in particular:

the controller continues to judge whether the pedestrian door leaf 4 is locked at the contraction position through the third sensor 1329, if the pedestrian door leaf 4 is not at the contraction position (namely, the pedestrian door leaf 4 is in the locking state), the controller controls the locking driving piece 11 of the pedestrian door leaf 4 to drive the locking to contract and records time through a timer, and when the contraction is not completed yet exceeding the set time, a timeout false alarm is sent;

after the door leaf 4 is unlocked, the controller continuously judges whether the door leaf 4 is at a door opening position through the fourth sensor, if the door leaf 4 is not at the door opening position (namely, the door leaf 4 is in a closed state), the controller controls the electric door opener 8 of the door leaf 4 to execute a door opening action, when the door is opened, the door is kept for a certain time, personnel are allowed to pass, usually 6s, and then the electric door opener 8 of the door leaf 4 is controlled to execute a door closing action.

In this embodiment, a pressure sensor may be further disposed in the electric door opener 8, where the pressure sensor is electrically connected to the controller, and when the electric door opener 8 performs a door opening and closing operation, and when the pressure received by the pressure sensor is greater than a set pressure during a blocking, the controller may suspend the electric door opener 8 to perform an action, send an "blocking" alarm, and after a worker removes the blocking, make the electric door opener 8 continue to perform an action to complete the door opening and closing operation.

After the door leaf 4 is closed, the controller continues to determine whether the door leaf 4 is locked in the extended position by the third sensor 1329, and if the door leaf 4 is not in the extended position (i.e., the door leaf 4 is in an unlocked state), the controller controls the locking driving member 11 of the door leaf 4 to drive the locking to extend and records time by a timer, and when the retraction is not completed beyond the set time, a timeout error alarm is issued.

It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.

Claims (10)

1. A protective airtight door, characterized in that: comprises a locking device (1), a first right identification device, a controller and a second right identification device, wherein the locking device (1) is arranged on a door leaf and is used for locking and unlocking the door leaf and a door frame,

the locking device (1) comprises a locking driving piece (11) and a locking head (12), the locking driving piece (11) comprises a driving motor (111) and a hand wheel (112), the driving motor (111) and the hand wheel (112) are both connected with the locking head (12), and the driving motor and the hand wheel (112) can be used for driving the locking head (12) to stretch to enter and exit a lock hole of a door frame;

the controller is electrically connected with the driving motor (111) and the first permission identification device, the first permission identification device is used for sending a signal to the controller after acquiring the permission of the authorizer, and the controller is used for automatically controlling the driving motor (111) to operate after the authorization is passed according to the signal; the hand wheel (112) is detachably connected with the locking head (12), and a second right identification device is arranged at the connection position and used for opening the connection position between the hand wheel (112) and the locking head (12) after being manually opened by an authorized person, so that the hand wheel (112) is allowed to be connected with the locking head (12).

2. The protective enclosure door of claim 1, wherein: the second right identification device comprises a protective cover (2), wherein the protective cover (2) is covered at a connection position between the hand wheel (112) and the locking head (12), a lock (21) allowing an authorized person to manually open is arranged on the protective cover (2), and the protective cover (2) is used for opening the connection position after the lock (21) is opened, so that the hand wheel (112) is allowed to be connected with the locking head (12).

3. The protective enclosure door of claim 2, wherein: the locking device (1) also comprises a connecting component (13), the driving motor (111) and the hand wheel (112) are connected with the locking head (12) through the connecting component (13),

the input end of the connecting component (13) for connecting the hand wheel (112) is a square shaft, a square hole (1121) is formed in the hand wheel (112), and the hand wheel (112) is connected with the input end through the square shaft sleeved on the square hole (1121).

4. A protective enclosure door according to claim 3, wherein: the two hand wheels (112) are respectively arranged at the opposite positions of the inner side and the outer side of the door leaf,

the connecting assembly (13) comprises a first reverser (131) and a transmission mechanism (132), wherein the first reverser (131) is provided with an output end and two input ends, the two input ends are respectively used for connecting two hand wheels (112), the output ends are connected with the transmission mechanism (132), and the transmission mechanism (132) is connected with the locking head (12) and is used for outputting the input rotary drive into telescopic drive so as to drive the locking head (12) to stretch out and draw back.

5. The protective enclosure door of claim 4, wherein: the input end of the transmission mechanism (132) is provided with a second reverser (1321)/speed reducer (1322), the second reverser (1321)/speed reducer (1322) is provided with two input ends, one input end is connected with the output end of the first reverser (131), and the other input end is connected with the output end of the driving motor (111).

6. The protective enclosure door of claim 5, wherein: the transmission mechanism (132) also comprises a screw rod (1323) and a screw sleeve (1324),

the screw rod (1323) is connected with the output end of the second reverser (1321)/reducer (1322), the screw sleeve (1324) is in threaded sleeve connection with the outside of the screw rod (1323), the locking head (12) is connected with the screw sleeve (1324),

the screw rod (1323) rotates under the drive of the locking driving piece (11), so that the screw sleeve (1324) is driven to drive the locking head (12) to move to realize expansion.

7. The protective enclosure door according to any one of claims 1 to 6, wherein: the protective door also comprises a protective door leaf (3) and a pedestrian door leaf (4), wherein the protective door leaf (3) is provided with at least one fan which is connected with and seals the protective door frame (5),

and at least one protective door leaf (3) is provided with a hollowed-out area, the edge of the hollowed-out area is used as a pedestrian door frame (6), the pedestrian door leaf (4) is connected with and seals the pedestrian door frame (6),

the protection door leaf (3) and the pedestrian door leaf (4) are respectively provided with the locking devices (1), and each locking device (1) is respectively used for locking and unlocking the protection door leaf (3) and the protection door frame (5) and locking and unlocking the pedestrian door leaf (4) and the pedestrian door frame (6).

8. The protective enclosure door of claim 7, wherein: the protective door leaf (3) is connected with the protective door frame (5) through an electric hinge (7),

the electric hinge (7) comprises a hinge shaft (71), an opening and closing driving piece (72) and an electromagnetic clutch (73), the protective door leaf (3) is hinged with the protective door frame (5) through the hinge shaft (71),

the opening and closing driving piece (72) is connected with the hinge shaft (71) through the electromagnetic clutch (73) and is used for driving the hinge shaft (71) to drive the protective door leaf (3) to rotate to realize opening and closing under the electrified state of the electromagnetic clutch (73), and the protective door leaf (3) freely rotates around the hinge shaft (71) to realize opening and closing under the deenergized state of the electromagnetic clutch (73).

9. The protective enclosure door of claim 7, wherein: the pedestrian door leaf (4) is hinged with the pedestrian door frame (6) and is connected with the pedestrian door frame through an electric door opener (8),

the electric door opener (8) drives the pedestrian door leaf (4) to rotate around the hinge to realize opening and closing in the power-on state, and the pedestrian door leaf (4) freely rotates around the hinge to realize opening and closing in the power-off state.

10. A method for opening and closing the protective airtight door, characterized by comprising:

the power-on and off step is executed in a power-on state, the first authority identification device acquires the authority of an authorized person and sends a signal to the controller, and the controller controls the driving motor (111) to drive the locking device (1) to be opened/locked after the signal passes through the authorization;

the power-off opening and closing step is executed in a power-off state, the second right identification device is manually opened by an authorized person, so that the connection position between the hand wheel (112) and the locking head (12) is opened, the hand wheel (112) is installed by the authorized person, and the locking device (1) is driven to be opened/locked by manually rotating the hand wheel (112).