CN210828864U - Anti-following access control device - Google Patents

Abstract

The utility model discloses an anti-following access control device, relating to a door, comprising a main controller arranged at a door frame or a door leaf, an alarm, an infrared sensor, a camera device, a memory and a mirror, and an upper computer, a display screen and a loudspeaker arranged at the main controller; the number of people outside the door is monitored through an infrared sensor at a door frame or a door leaf of the door, the main controller judges according to the monitored number of people outside the door, and when the number of people outside the door is more than 1, the main controller controls an alarm to give an alarm or give a voice prompt, so that advance early warning can be performed; meanwhile, an upper computer, a display screen and a loudspeaker are arranged in the monitoring room, the upper computer receives or takes in data obtained by the controller, alarms are carried out through the loudspeaker according to an alarm signal obtained by the alarm, and early warning and monitoring can be carried out in the monitoring room as well; moreover, the camera device can be used for monitoring the outdoor conditions in real time, and recording is performed before or after the door, so that subsequent checking is facilitated.

Description

Anti-following access control device

Technical Field

The utility model relates to a door especially relates to a prevent following entrance guard's device.

Background

The following robbery is one of the most common problems in the cash counter robbery (namely, after a salesperson opens a door, a criminal rushes into a counter to robber along with the salesperson), and the following robbery is not only in a shop, but also in daily life. The common anti-theft door is difficult to play a role in preventing robbery. Traditional entrance guard all is the monitoring alarm in the affairs, the passive defense system who traces back afterwards, in some important places that need control personnel to come in and go out, it is too late when the monitoring problem has been found again in the remedy, wants passive change initiative, changes in advance afterwards. The anti-following access control system provides a simple, convenient and effective solution to the safety problem. The anti-following access control system has the advantages of anti-following robbery, convenient use, safety, reliability, high confidentiality and the like. Has been widely applied to places such as banks and the like needing to prevent trailing. However, the existing anti-following entrance guard is high in price and is unwilling to use by common users, so that a simple anti-following entrance guard device is needed, can be put in advance, can actively defend, fundamentally avoids the following problem, and practically prevents the occurrence of safety production accidents.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent following entrance guard's device to the shortcoming that current prevent following entrance guard's device price is higher, remedy afterwards has been solved.

In order to realize the above-mentioned purpose, the utility model provides a prevent following entrance guard's device, including the door frame and with door frame assorted door leaf, one side of door leaf and one side in the door frame are passed through the hinge and are articulated, make the door leaf is relative rotation round the central axis of hinge, the door leaf is provided with the door closer with the top of the articulated one side of door frame, the door closer is connected with door leaf and door frame respectively, its characterized in that still includes:

the sealing strip is arranged in the door frame;

a door lock device provided on the other side of the door leaf and the door frame;

the main controller is connected with the access control device and used for receiving and controlling a door opening and closing signal of the door lock device;

the alarm is connected with the main controller;

the infrared sensor is arranged in the door, is connected with the main controller and is used for detecting the number of people outside the door and sending the detected result to the main controller, the main controller determines the number of people outside the door according to the received detection result, and when the number of people outside the door is more than 1, the main controller controls the alarm to give an alarm or give a prompt;

the camera device is arranged on the front side of the door leaf, is connected with the main controller, and is used for monitoring the condition outside the door and transmitting the monitored condition to the memory;

the memory is arranged in the door, is respectively connected with the camera device and the main controller, and is used for storing the running data of the main controller and the condition monitored by the camera device; and

a noise reducing device comprising:

a permanent magnet disposed on the door frame;

the first gear is fixedly arranged at the bottom end or the top end of the hinge and can be driven to rotate through the hinge;

the direct-current speed reducing motor is fixedly arranged on the door leaf, a rotating shaft of the direct-current speed reducing motor is connected with a gear shaft, the gear shaft is meshed with the first gear, and the gear shaft is driven to rotate through the rotation of the first gear so as to drive the direct-current speed reducing motor to generate electricity;

the capacitor is connected with the control end of the direct current speed reducing motor; and

the electromagnet is arranged on the door leaf opposite to the permanent magnet and connected in parallel with two ends of the capacitor, and a magnetic field generated by the electromagnet is repelled from the permanent magnet; by opening and closing the door leaf, the door leaf rotates to drive the first gear to rotate, the first gear rotates to drive the gear shaft to rotate and drive the direct-current speed reducing motor to generate electricity to charge the capacitor, the electromagnet is electrified to generate a magnetic field to repel the permanent magnet, the door closing speed is slowed down, and the door closing sound is reduced.

Further, still include host computer and loudspeaker, host computer and loudspeaker set up in the monitor, the host computer passes through internet access with main control unit for receive alarm signal to report to the police through loudspeaker, the host computer still is used for conveniently looking over main control unit, alarm, infrared sensor and camera device's record.

Further, the camera device adopts a face recognition device.

Furthermore, the direct current gear motor, the capacitor and the electromagnet are arranged inside the door leaf or on the back of the door leaf.

Further, the noise reduction device comprises at least two groups.

Further, the door lock device adopts an electronic anti-theft lock, and a resident can open the electronic anti-theft lock by using an access card or a key.

Further, the camera device is arranged at a height of 1.5m from the ground.

Further, still include the display screen, set up in the monitor, with the host computer is connected.

Furthermore, the alarm is an audible and visual alarm, a voice reminder or a loudspeaker.

Furthermore, the door further comprises a mirror which is arranged near the outer side of the door leaf or the outer side of the door frame.

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

the utility model provides an anti-following entrance guard device, which comprises a main controller arranged at a door frame or a door leaf, an alarm, an infrared sensor, a camera device, a memory and a mirror, and an upper computer, a display screen and a loudspeaker which are arranged at the main controller; the number of people outside the door is monitored through an infrared sensor at a door frame or a door leaf of the door, the main controller judges according to the monitored number of people outside the door, and when the number of people outside the door is more than 1, the main controller controls an alarm to give an alarm or give a voice prompt, so that advance early warning can be performed; meanwhile, an upper computer, a display screen and a loudspeaker are arranged in the monitoring room, the upper computer receives or takes in data obtained by the controller, alarms are carried out through the loudspeaker according to an alarm signal obtained by the alarm, and early warning and monitoring can be carried out in the monitoring room as well; moreover, the camera device can be used for monitoring the outdoor condition in real time, and recording is performed before or after the door, so that the subsequent checking is facilitated; set up the mirror outside the door, can see through the mirror whether someone is in the back, when sending out someone in the back, can judge according to oneself and make the follow-up decision of decision. Therefore, the defects of higher price and post-remediation of the conventional anti-following access control device are overcome.

Meanwhile, the utility model provides a prevent following entrance guard's device still is an entrance guard's device that contains the door closer, when the door closer closed, through closing the door leaf, make the door leaf rotate and drive first gear rotation, first gear rotation drives gear shaft rotation, drives direct current gear motor electricity generation and charges for electric capacity, makes electric capacity power on the electro-magnet, and the electro-magnet circular telegram produces magnetic field and repels with the permanent magnet mutually to slow down the speed that the door leaf closed, reduce the sound of closing the door; when the door leaf is opened, the electromagnet can also generate a magnetic field to repel the permanent magnet, and when the angle of opening the door is small, the resistance of the door closer can be reduced, so that the pulling force for opening the door by a door opener is reduced. The direct-current speed reduction motor is driven by the first gear to rotate to generate power for the capacitor and the electromagnet, additional electricity connection is not needed, energy can be saved, emission can be reduced, the problem of overlarge noise caused by door closing is solved, and the direct-current speed reduction motor is green and environment-friendly; adopt the sealing strip simultaneously, also can play certain effect to the reduction of noise, consequently the noise that the reduction that this application can be fine was closed the door and is produced to reduce the influence of the sound of closing the door to low floor user, can in time close the door again, thereby reduce that unmanned aerial vehicle gets into.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic back structural view of an anti-following door access device of the present invention;

fig. 2 is a schematic front structural view of an anti-following entrance guard device of the present invention;

wherein: the method comprises the following steps of 1-a door frame, 2-a door leaf, 3-a hinge, 4-a door closer, 5-a sealing strip, 6-a door lock device, 7-a permanent magnet, 8-a first gear, 9-a direct current gear motor, 10-a gear shaft, 11-a capacitor, 12-an electromagnet, 13-a main controller, 14-an alarm, 15-an infrared sensor, 16-a camera device and 17-a mirror.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the utility model provides a prevent following entrance guard's device includes door frame 1 and with door frame 1 assorted door leaf 2, one side of door leaf 2 and one side in the door frame 1 are passed through hinge 3 and are articulated, and door leaf 2 rotates round hinge 3's the central axis axial, and hinge 3 includes two at least, and the prevent following entrance guard's of this embodiment device adopts two hinges 3. A door closer 4 is arranged above one side of the hinged door leaf 2 and the hinged door frame 1, and the door closer 4 is respectively connected with the door leaf 2 and the hinged door frame 1. Adopt door closer 4, because the anti-following entrance guard's device is used in the first floor gate usually, the personnel of business turn over and business turn over are more, not all people all have the custom of closing the door at will, if do not have the person of the custom of closing the door at will touch the person of following or having a chance to do a case, give other people very easily the chance to follow up the floor, and door closer 4 can guarantee that the door is opened the back, accurate, timely closing reaches the initial position, consequently can reduce unclear personnel's trailing, however when door closer 4 control door leaf 2 closes the door speed too fast, can produce great sound, can influence the user of low floor, consequently door closer 4 adopts hydraulic buffer door closer, can control the speed of closing the door. The door closer 4 is of model CM-1100F.

The anti-following access control device further comprises: the device comprises a sealing strip 5, a door lock device 6, a main controller 13, an alarm 14, an infrared sensor 15, a camera device 16, a memory and a noise reduction device. The sealing strip 5 is embedded in the door frame 1 or adopts an expansion sealing strip, the sealing strip 5 is a rubber sealing strip, and the decibel of the noise generated when the door is closed can be reduced through the sealing strip 5. Door lock device 6 sets up on door leaf 2's opposite side and door frame 1, and door lock device 6 adopts the magnetic card lock or the response lock that need punch the card or open the door with the key of going out, and the model that door lock device 6 adopted is IDSN1101, adopts this kind of door lock device 6, and the user all needs the response card or uses the key of passing in and out the door, can effectively reduce irrelevant personnel and pass in and out the door.

With continued reference to fig. 1 and 2, the anti-tailing access control device further includes: the door lock device comprises a main controller 13, an alarm 14, an infrared sensor 15, a camera device 16 and a memory, wherein the main controller 13 is connected with a door control device, and the main controller 13 is arranged inside the door leaf 2 or at the top of the back of the door leaf 2 and used for receiving and controlling a door opening and closing signal of the door lock device 6; the alarm 14 is arranged in the door leaf 2 or at the top of the back of the door leaf 2 and is connected with the main controller 13; the infrared sensor 15 is arranged in the door, is connected with the main controller 13, and is used for detecting the number of people outside the door and sending the detected result to the main controller 13, the main controller 13 determines the number of people outside the door according to the received detection result, when the number of people outside the door is more than 1, the main controller 13 controls the alarm 14 to give an alarm or prompt, and the alarm setting can be carried out on the main controller according to the requirement; the camera device 16 is arranged on the front surface of the door leaf 2, and the camera device 16 is connected with the main controller 13 and used for monitoring the condition outside the door and transmitting the monitored condition to the memory; the memory is arranged in the door, and the memory is respectively connected with the camera device 16 and the main controller 13, is used for storing data of the operation of the main controller 13 and conditions monitored by the camera device 16, and is provided for the main controller 13 to fetch.

The main controller 13 can adopt devices capable of processing and controlling signals, such as a 51-series single chip microcomputer, an STC-series single chip microcomputer, a raspberry pi and the like; the alarm 14 is an audible and visual alarm, a voice reminder or a loudspeaker, the infrared sensor 15 can be TAD-K616, the specific model adopted in the embodiment is JQ308, the voice infrared human body sensor customization audible alarm, the alarm 14 contains infrared human body sensors, the alarm 14 can be arranged at the top of the door frame 1 and is not limited to the top of the door frame 1, the alarm 14 is arranged together with the infrared sensor 15, the alarm 14 and the main controller 13, and the main controller 13 in FIG. 2 is not drawn at the top of the door frame 1 and is another implementation mode, the components of the utility model are not limited to being independent and can be combined; the camera device 16 adopts a face recognition device, the adopted model is RER-USB3MP01H-LS29, the camera device 16 is arranged at the height of 1.5m away from the ground, or the camera device 16 is arranged according to the actual requirement or the height convenient for monitoring; the memory adopts the TF memory card, can adopt 32G's or the memory card of bigger memory, selects the setting according to actual need, the utility model discloses a memory card can set up in alarm 14 department or set up in main control unit 13 department.

In addition, the anti-following entrance guard device also comprises a mirror 17 which is arranged at the outer side of the door leaf 2 or the outer side of the door frame 1, whether a person is behind can be seen through the mirror 17, the mirror 17 which is not used for arranging the mirror 17 at the doorway can be arranged by adopting the mirror 17 with a cover, and the situation behind the person can be seen by opening the mirror 17 when the anti-following entrance guard device is used.

With further reference to fig. 1, the anti-tailing access control device further comprises: the upper computer, the display screen and the loudspeaker are arranged in the monitoring room, the upper computer is connected with the main controller 13 through a network, and the upper computer is connected with the display screen; the upper computer is used for receiving or taking the data obtained by the controller, giving an alarm according to the alarm signal obtained by the alarm 14, giving an alarm through a loudspeaker, and controlling the upper computer to check the records of the main controller 13, the alarm 14, the infrared sensor 15 and the camera device 16 through the display screen. The host computer adopts a 51 series single chip microcomputer, an STC series single chip microcomputer, a raspberry group and the like which are the same as the main controller 13, and is convenient to connect and set. The display screen can adopt an LED display screen.

Still referring to fig. 1, the noise reduction device of the anti-following door access device may include one group, may be two or more groups, and preferably two groups, and the two groups of door access devices are respectively disposed on the hinge 3 and the door frame 1 closest to the door frame 1; the present embodiment is explained with a noise reducing device provided near the top of a door frame 1, the noise reducing device including: the door closer comprises a permanent magnet 7, a first gear 8, a direct-current speed reduction motor 9, a capacitor 11 and an electromagnet 12, wherein the permanent magnet 7 is fixedly arranged on the top of the door frame 1, and the permanent magnet 7 is arranged on the top of the door frame 1 on the same side with the door lock device 6 in order that the door closer 4 can be quickly closed; the bottom end of the mandrel of the hinge 3 closest to the top of the doorframe 1 is welded with the first gear 8; the direct current gear motor 9 is fixed on the inner side of the door leaf 2 close to the upper part through a screw or by welding, a gear shaft 10 is welded on a rotating shaft of the direct current gear motor 9, and the gear shaft 10 is meshed with the first gear 8; the capacitor 11 is fixed on the back of the door leaf 2 and is connected with the control end of the direct current speed reducing motor 9; the electromagnet 12 is arranged on the inner side of the door leaf 2 opposite to the permanent magnet 7 and is connected in parallel with two ends of the capacitor 11; when the magnetic field generated by the electromagnet 12 is repelled from the permanent magnet 7; by closing the door leaf 2, the door leaf 2 rotates to drive the first gear 8 to rotate, the first gear 8 rotates to drive the gear shaft 10 to rotate and drive the direct-current speed reduction motor 9 to generate electricity to charge the capacitor 11, the capacitor 11 energizes the electromagnet 12, and the electromagnet 12 is energized to generate a magnetic field which is repelled with the permanent magnet 7, so that the door closing speed of the door leaf 2 is slowed down, and the door closing sound is reduced; when the door leaf 2 is opened, the electromagnet 12 can also generate a magnetic field to repel the permanent magnet 7, and when the door opening angle is not large, the resistance of the door closer 4 can be reduced, so that the pulling force for the door opener to open the door is reduced. And the direct current speed reducing motor 9 is driven by the first gear 8 to rotate to generate power for the capacitor 11 and the electromagnet 12, additional power connection is not needed, energy conservation and emission reduction can be realized, and the environment is protected. The dc gear motor 9 is of type N20.

Because the hinge 3 has a plurality of types, the bottom of some hinges can rotate, and some hinges do not work, therefore, the first gear 8 and the hinge can be welded along the rotating bottom or the rotating upper end of the hinge shaft, for example, the hinge 3 adopts an invisible hydraulic buffer hinge, if the bottom and the top of the hydraulic buffer hinge are adjusted by adjusting the door closing sound and the door closing force, when the bottom and the top of the hinge shaft of the hydraulic buffer hinge extend out, a cylinder can be welded at the lower end of the hinge body, the cylinder extends out of the bottom of the invisible hydraulic buffer hinge, and the first gear 8 is welded after the adjustment is proper; when the bottom and the top of the hinge shaft of the hydraulic buffering hinge do not extend out, the first gear 8 can be welded at the bottom end of the hinge 3, and the bottom or the top of the hinge shaft of the hydraulic buffering hinge can still be adjusted through the middle of the gear. Other hinges are the same, and hinge 3 rotates and can drive first gear 8 to rotate promptly.

The first gear 8 is a circular gear or a sector gear, and the gear used for the first gear 8 in this embodiment is a circular gear. The dc speed reducing motor 9, the capacitor 11 and the electromagnet 12 in the noise reduction device can be selectively arranged in the door leaf 2 or on the back of the door leaf 2 as required. The materials of the door frame 1 and the door leaf 2 can be selected as required, and can be a metal door, a wooden door, a fireproof door and the like, and the materials of the door frame 1 and the door leaf 2 can be different.

To sum up, the utility model relates to an anti-following entrance guard device, which comprises a main controller arranged at a door frame or a door leaf, an alarm, an infrared sensor, a camera device, a memory and a mirror, and an upper computer, a display screen and a loudspeaker which are arranged at the main controller; the number of people outside the door is monitored through the infrared sensor at the door frame or the door leaf of the door leaf, the main controller judges according to the monitored number of people outside the door, and when the number of people outside the door is more than 1, the main controller controls the alarm to give an alarm or give a voice prompt (the alarm adopted by the implementation comprises the infrared sensor, the alarm, the main controller and the memory), so that advance early warning can be carried out; meanwhile, an upper computer, a display screen and a loudspeaker are arranged in the monitoring room, the upper computer receives or takes in data obtained by the controller, alarms are carried out through the loudspeaker according to an alarm signal obtained by the alarm, and early warning and monitoring can be carried out in the monitoring room as well; moreover, the camera device can be used for monitoring the outdoor condition in real time, and recording is performed before or after the door, so that the subsequent checking is facilitated; set up the mirror outside the door, can see through the mirror whether someone is in the back, when sending out someone in the back, can judge according to oneself and make the follow-up decision of decision.

Meanwhile, the utility model discloses a prevent following entrance guard's device is also an entrance guard's device that contains the door closer, when the door closer was closed, through closing the door leaf, made the door leaf rotate and drive first gear rotation, first gear rotation drives gear shaft rotation, drives direct current gear motor electricity generation and charges for electric capacity, makes electric capacity power on for the electro-magnet, and the electro-magnet circular telegram produces magnetic field and permanent magnet repulsion to slow down the speed that the door leaf closed the door, reduce the sound of closing the door; when the door leaf is opened, the electromagnet can also generate a magnetic field to repel the permanent magnet, and when the angle of opening the door is small, the resistance of the door closer can be reduced, so that the pulling force for opening the door by a door opener is reduced. The direct-current speed reduction motor is driven by the first gear to rotate to generate power for the capacitor and the electromagnet, additional electricity connection is not needed, energy can be saved, emission can be reduced, the problem of overlarge noise caused by door closing is solved, and the direct-current speed reduction motor is green and environment-friendly; adopt the sealing strip simultaneously, also can play certain effect to the reduction of noise, consequently the noise that the reduction that this application can be fine was closed the door and is produced to reduce the influence of the sound of closing the door to low floor user, can in time close the door again, thereby reduce that unmanned aerial vehicle gets into.

The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or modifications within the technical scope of the present invention, and all should be covered by the scope of the present invention.

Claims (10)

1. The utility model provides a prevent following entrance guard's device, including door frame (1) and with door frame (1) assorted door leaf (2), one side of door leaf (2) is passed through hinge (3) with one side in door frame (1) and is articulated, makes door leaf (2) do relative rotation round the central axis of hinge (3), door leaf (2) are provided with door closer (4) with the top of door frame (1) articulated one side, door closer (4) are connected with door leaf (2) and door frame (1) respectively, and its characterized in that still includes:

a weather strip (5) provided in the door frame (1);

a door lock device (6) which is arranged on the other side of the door leaf (2) and the door frame (1);

a main controller (13) connected to the door control device;

an alarm (14) connected to the main controller (13);

the infrared sensor (15) is arranged in the door, is connected with the main controller (13) and is used for detecting the number of people outside the door and sending the detected result to the main controller (13), the main controller (13) determines the number of people outside the door according to the received detection result, and when the number of people outside the door is more than 1, the main controller (13) controls the alarm (14) to give an alarm or give a prompt;

the camera device (16) is arranged on the front surface of the door leaf (2), is connected with the main controller (13), and is used for monitoring the condition outside the door and transmitting the monitored condition to a memory;

the memory is arranged in the door, is respectively connected with the camera device (16) and the main controller (13), and is used for storing the data of the operation of the main controller (13) and the condition monitored by the camera device (16); and

a noise reducing device comprising:

a permanent magnet (7) provided on the door frame (1);

the first gear (8) is fixedly arranged at the bottom end or the top end of the hinge (3), and the hinge (3) can drive the first gear (8) to rotate;

the direct current speed reducing motor (9) is fixedly arranged on the door leaf (2), a rotating shaft of the direct current speed reducing motor (9) is connected with a gear shaft (10), the gear shaft (10) is meshed with the first gear (8), and the gear shaft (10) is driven to rotate through the rotation of the first gear (8) so as to drive the direct current speed reducing motor (9) to generate electricity;

a capacitor (11) connected with the control end of the direct current speed reducing motor (9); and

the electromagnet (12) is arranged on the door leaf (2) opposite to the permanent magnet (7) and connected with two ends of the capacitor (11) in parallel, and a magnetic field generated by the electromagnet (12) is repulsive to the permanent magnet (7); through opening and closing the door leaf (2), the door leaf (2) rotates and drives the first gear (8) to rotate, the first gear (8) rotates and drives the gear shaft (10) to rotate and drives the direct-current speed reduction motor (9) to generate electricity to charge the capacitor (11), so that the electromagnet (12) is electrified to generate a magnetic field to repel the permanent magnet (7), the door closing speed of the door leaf (2) is reduced, and the door closing sound is reduced.

2. The anti-tailing access control device according to claim 1, further comprising an upper computer and a loudspeaker, wherein the upper computer and the loudspeaker are arranged in a monitoring room, and the upper computer is connected with the main controller (13) through a network and used for receiving an alarm signal and giving an alarm through the loudspeaker.

3. The anti-tailing access control device according to claim 1, characterized in that the camera device (16) adopts a face recognition device.

4. The anti-following entrance guard device according to claim 1, wherein the DC gear motor (9), the capacitor (11) and the electromagnet (12) are arranged inside the door leaf (2) or on the back of the door leaf (2).

5. The anti-tailing access control device according to claim 1, characterized in that the noise reduction means comprise at least two groups.

6. The anti-tailing access control device according to claim 1, characterized in that the door lock device (6) is an electronic anti-theft lock that can be opened by the occupant using an access card or key.

7. The anti-tailing access control device according to claim 1, characterized in that the camera device (16) is arranged at a height of 1.5m from the ground.

8. The anti-tailing access control device according to claim 2, characterized by further comprising a display screen arranged in the monitoring room and connected with the upper computer.

9. The anti-tailing access control device according to claim 1, characterized in that the alarm (14) is an audible and visual alarm, a voice reminder or a horn.

10. The anti-tailing access control device according to claim 1, characterized in that it further comprises a mirror (17) arranged near the outside of the door leaf (2) or the outside of the door frame (1).

Images