CN109636958B

CN109636958B - Entrance guard capable of automatically opening and closing door

Info

Publication number: CN109636958B
Application number: CN201811332755.6A
Authority: CN
Inventors: 赵勍晔
Original assignee: Zhejiang Hengxinda Electronic Technology Co ltd
Current assignee: Zhejiang Hengxinda Electronic Technology Co ltd
Priority date: 2018-11-09
Filing date: 2018-11-09
Publication date: 2020-12-04
Anticipated expiration: 2038-11-09
Also published as: CN109636958A

Abstract

The invention discloses an entrance guard for automatically opening and closing a door, which belongs to the field of security equipment, and adopts the technical scheme that the entrance guard comprises a door structure and an identification device, wherein the door structure comprises a door frame, a door plate movably arranged in the door frame and an electronic lock for limiting the movement of the door plate; the identification device comprises a radio frequency card, a reader, a computer and a driving device for driving the door panel to move, and the electronic lock and the driving device are electrically connected with the computer through signals; when the radio frequency card enters a radio frequency signal effective working area of the reader, the radio frequency card is activated and transmits information in the radio frequency card to the reader, the reader reads personal information of a user and transmits the personal information to the computer, the computer compares the read personal information of the user with pre-stored user information, when the read personal information of the user is the same as the pre-stored user information, the computer controls the electronic lock to be closed, and the computer controls the driving device to open the door structure. The invention has the effect of automatically opening the door.

Description

Entrance guard capable of automatically opening and closing door

Technical Field

The invention relates to the technical field of security equipment, in particular to an entrance guard capable of automatically opening and closing a door.

Background

In order to enhance the living safety of residential districts or personnel attendance management of office buildings, access control is often arranged, and an access control system is used for guard against of doors. The "door" herein refers to various passages that can be passed through, including a door through which people pass, a door through which vehicles pass, and the like.

At present, a chinese patent with publication number CN203858689U discloses an intelligent access control system based on GPRS wireless technology, which includes a server, a wireless signal transceiver is arranged in the server, the server is connected with a plurality of intelligent access control systems through the wireless signal transceiver, the access control system includes a controller, the controller is connected with an external power supply through a power line, and the controller is connected with the wireless signal transceiver in the server through an antenna; the controller is connected with a plurality of door bodies through signal lines, each door body comprises a door leaf and a door frame, a door closer corresponding to the door leaf is arranged on the door frame, an electronic lock is arranged on the door leaf, and the electronic lock is connected with the controller through the signal lines. The information of the user is stored in the server, then when the user opens the entrance guard through an entrance guard card or a password, the data information is transmitted to the server through a wireless signal, an instruction for opening the entrance guard is transmitted to the controller after the information is verified, and the controller controls the electronic lock to be opened after receiving the instruction, so that the user can open the door.

The above prior art solutions have the following drawbacks: above-mentioned technical scheme well door is the normal close door, and when opening entrance guard with entrance guard's card or password, only open the electronic lock, still need the user to push the door open then get into to lead to the use inconvenient.

Disclosure of Invention

The invention aims to provide an entrance guard capable of automatically opening and closing a door.

In order to achieve the purpose, the invention provides the following technical scheme: an entrance guard for automatically opening and closing a door comprises a door structure and a recognition device, wherein the door structure comprises a door frame, a door plate movably arranged in the door frame and an electronic lock for limiting the movement of the door plate; the identification device comprises a radio frequency card, a reader and a computer, wherein personal information of a user is stored in the radio frequency card, the reader transmits a radio frequency signal, the computer is electrically connected with the reader, user information is prestored in the computer, the computer also comprises a driving device for driving the door plate to move, and the electronic lock and the driving device are electrically connected with the computer through signals; when the radio frequency card enters a radio frequency signal effective working area of a reader, the radio frequency card is activated and transmits information in the radio frequency card to the reader, the reader reads personal information of a user and transmits the personal information to a computer, the computer compares the read personal information of the user with pre-stored user information, when the read personal information of the user is the same as the pre-stored user information, the computer controls an electronic lock to be closed, and the computer controls a driving device to open a door structure.

By adopting the technical scheme, when a person with the radio frequency card approaches the access control, the radio frequency card generates induction current when entering an effective working area of a radio frequency signal of the reader, the radio frequency card obtains energy and is activated, the radio frequency card transmits information in the radio frequency card to the reader after being activated, the reader transmits the information in the radio frequency card to the computer for processing and recording, the computer compares the read personal information of the user with prestored user information, when the read personal information of the user is the same as the prestored user information, the computer controls the electronic lock to be closed, and meanwhile, the driving device is controlled to open the door structure, so that the aim of automatically opening the door is fulfilled, and the access control system is more convenient to use.

The invention is further configured to: the door plate comprises a first plate, a second plate, a third plate and a fourth plate, the first plate is hinged to the door frame, the other end of the first plate is hinged to one end of the second plate, the other end of the second plate is hinged to one end of the third plate, and the other end of the third plate is hinged to one end of the fourth plate.

By adopting the technical scheme, the door plate can be folded, the occupied space is greatly saved, and the door structure is more attractive and elegant.

The invention is further configured to: the width of the second plate is equal to the sum of the widths of the first plate and the third plate, and the fourth plate is connected with the doorframe in a sliding mode.

Through adopting above-mentioned technical scheme, make first plate, second plate and the third plate of messenger's door plant folding laminate completely, further save and take up an area of the space.

The invention is further configured to: the door frame is made for the aluminum alloy material, the door plant is the glass door plant, the electronic lock is electromagnetic lock, the one end that the first plate was kept away from to the door frame is inlayed to the electro-magnet of electronic lock, the iron plate fixed connection of electronic lock is in the lateral wall of fourth plate.

Through adopting above-mentioned technical scheme, make the electronic lock more concealed, make the door plant more pleasing to the eye atmosphere.

The invention is further configured to: and rubber pads are arranged at two ends of the thickness of the second plate.

Through adopting above-mentioned technical scheme, utilize the rubber pad to alleviate between first plate and the second plate and the impact between second plate and the third plate during folding, glass door is smashed by colliding when avoiding folding door plant.

The invention is further configured to: the door frame sliding connection has the slider, the slider is parallel with fourth plate sliding direction, the second plate rotates to be connected in the slider.

Through adopting above-mentioned technical scheme, utilize the slider to inject the position of second plate, further increase door plant and door frame connection structure's stability.

The invention is further configured to: the driving device is arranged in the sliding block and drives the second plate to rotate.

Through adopting above-mentioned technical scheme, when drive arrangement drive second plate rotated, drive first plate and third plate and rotate to realized the folding of door plant, realized that the door structure is opened.

The invention is further configured to: drive arrangement includes two magnetic shoes of fixed connection in the coil, fixed connection in the slider of axis of rotation, fixed connection in the axis of rotation of second plate, the central axis of coil is perpendicular with the central axis of rotation, two the magnetic shoe uses the central axis of rotation to be axisymmetric setting, two the terminal surface magnetic pole that the magnetic shoe is close to each other is opposite, the coil is located between two magnetic shoes, and is parallel with the fourth plate when the second plate, the central axis of coil is an contained angle with the magnetic induction line of magnetic shoe, the expert has the direct current in the coil, the coil electricity is connected with the switching-over structure that changes its current direction, the switching-over structure is connected in computer electricity.

Through adopting above-mentioned technical scheme, the coil after the circular telegram receives the effect of ampere force in the magnetic field and rotates to drive the second plate and rotate, utilize computer control switching-over structure, utilize the direction that switching-over structure control got into the coil current, thereby realize the rotation direction of second plate, and then realize opening and closing of door structure.

The invention is further configured to: the reversing structure comprises a Z-shaped relay, a first diode and a second diode, wherein one static contact of the Z-shaped relay is electrically connected with the anode of the first diode, the other static contact of the Z-shaped relay is electrically connected with the cathode of the second diode, the movable contact of the Z-shaped relay is electrically connected with an alternating current power supply, the cathode of the first diode and the anode of the second diode are both electrically connected with a coil, the other end of the coil of the electromagnet is grounded, and the Z-shaped relay is controlled by the computer.

By adopting the technical scheme, the first diode and the second diode which are connected in series in the reverse direction are utilized, so that alternating current is converted into direct current in different directions, and the Z-shaped relay is controlled by the computer, so that the direction of the direct current led into the coil is controlled.

In conclusion, the invention has the following beneficial effects:

firstly, reading information in a radio frequency card by using a reader, then transmitting the information to a computer for processing and recording, comparing the read information with pre-stored user information by the computer, when the read user personal information is the same as the pre-stored user information, controlling an electronic lock to be closed by the computer, and simultaneously controlling a driving device to open a door structure, thereby achieving the purpose of automatically opening the door and leading the use of an access control system to be more convenient;

the door plate is a folding door formed by sequentially hinging four glass doors, and the electronic lock is installed and hidden, so that the door plate is more attractive and elegant;

and thirdly, the second plate is rotatably connected to the sliding block, the sliding block is provided with a driving device for driving the second plate to rotate, and when the driving device is used for driving the second plate to rotate, the first plate and the third plate are driven to rotate, so that the door plate is folded, and the door structure is opened.

Drawings

FIG. 1 is a perspective view of the present embodiment;

FIG. 2 is a wire frame diagram of the present embodiment for showing the recognition apparatus;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

FIG. 4 is an enlarged view of portion B of FIG. 1;

fig. 5 is an exploded view of the present embodiment for showing the driving device;

FIG. 6 is a transverse sectional view of the present embodiment for showing the driving device;

fig. 7 is a circuit diagram for showing a commutation structure in the present embodiment.

Reference numerals: 1. a door structure; 11. a door frame; 111. a chute; 12. a door panel; 121. a first plate member; 122. a second plate member; 123. a third plate member; 124. a fourth plate member; 125. an articulation member; 126. hinging a shaft; 127. a hinge plate; 128. a rubber pad; 13. an electronic lock; 131. an electromagnet; 132. an iron plate; 14. a slider; 2. an identification device; 21. a reader; 22. a radio frequency card; 23. a computer; 3. a drive device; 31. a rotating shaft; 32. a coil; 33. a magnetic shoe; 34. a commutation structure; 341. a Z-shaped relay; 342. a first diode; 343. a second diode.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

An entrance guard for automatically opening and closing a door, as shown in fig. 1, includes a door structure 1, a recognition device 2, and a driving device 3 (see fig. 2) for driving the door structure 1 to open and close. The door structure 1 includes a door frame 11 fixedly attached to a wall, a door panel 12 movably attached within the door frame 11, and an electronic lock 13 (see fig. 2) limiting the movement of the door panel 12.

As shown in fig. 2, the identification device 2 includes a radio frequency card 22 in which personal information of a user is stored, a reader 21 which transmits a radio frequency signal, and a computer 23 which is electrically connected to the reader 21. The reader 21 is fixedly connected to a wall provided with a door frame 11, user information is prestored in the computer 23, and the electronic lock 13 and the driving device 3 are both in electric signal connection with the computer 23. When a person holding the radio frequency card 22 enters an effective working area of a radio frequency signal of the reader 21, the radio frequency card 22 generates induction current when entering a radio frequency signal area of the reader 21, the radio frequency card 22 obtains energy to be activated, the radio frequency card 22 transmits information in the radio frequency card to the reader 21 after being activated, the reader 21 reads personal information of a user and transmits the personal information to the computer 23, the computer 23 compares the read personal information of the user with pre-stored user information, when the read personal information of the user is the same as the pre-stored user information, the computer 23 controls the electronic lock 13 to be closed, and the computer 23 controls the driving device 3 to drive the door structure 1 to be opened.

As shown in fig. 3, the door frame 11 is made of an aluminum alloy, and the door 12 includes a first plate 121, a second plate 122, a third plate 123 and a fourth plate 124. The first plate 121 is hinged to the door frame 11, the other end of the first plate is hinged to one end of the second plate 122, the other end of the second plate 122 is hinged to one end of the third plate 123, the other end of the third plate 123 is hinged to one end of the fourth plate 124, and the first plate 121, the second plate 122, the third plate 123 and the fourth plate 124 are hinged to each other through a hinge 125. The spout 111 has all been seted up to door frame 11 upper end and lower extreme inner wall, and fourth plate 124 lower extreme and lower extreme sliding connection are in spout 111 respectively. All sliding connection has slider 14 in two spout 111, and both ends rotate respectively to be connected on two sliders 14 about the second plate 122. The positions of the fourth plate 124 and the second plate 122 are defined by the sliding groove 111 and the sliding block 14, so that the stability of the connecting structure of the door panel 12 and the door frame 11 is further increased. The rotation axis 31 of the second plate 122 is located at the middle position of the width direction, and the width of the first plate 121 and the width of the third plate 123 are both half of the width of the second plate 122, so that the first plate 121 and the third plate 123 completely attach to the two opposite end faces of the second plate 122 after the door panel 12 is folded, and the occupied space is saved. The electronic lock 13 is an electromagnetic lock, and includes an electromagnet 131 and a ferrous plate 132, the electromagnet 131 is embedded in the side wall of the doorframe 11 facing the fourth plate 124, and the ferrous plate 132 is embedded in the side wall of the fourth plate 124 facing the electromagnet 131. When the electronic lock 13 is activated, the electromagnet 131 is energized to generate a magnetic force, thereby generating an attraction force to the iron plate 132 to prevent the door structure 1 from being opened.

As shown in fig. 3, the first plate 121, the second plate 122, the third plate 123 and the fourth plate 124 are all glass door panels, when the door panel 12 is folded, impact can be generated between the first plate 121 and the second plate 122 and between the second plate 122 and the third plate 123, and the glass door can be broken when possible, so that rubber pads 128 are adhered to both sides of the second plate 122 in the thickness direction, and during folding, the rubber pads 128 are used for relieving the impact between the first plate 121 and the second plate 122 and between the second plate 122 and the third plate 123, so as to prevent the glass door from being broken when the door panel 12 is folded.

As shown in fig. 4, the ends of the first plate 121, the second plate 122, the third plate 123 and the fourth plate 124, which are close to each other, are all semicircular, the hinge member 125 includes an elongated hinge plate 127 and a hinge shaft 126, the hinge shaft 126 is fixedly connected to the plates, and the hinge shaft 126 is coaxially arranged with the semicircles of the end surfaces of the plates. Two adjacent hinge shafts 126 are rotatably connected to both ends of the same hinge plate 127, and the distance between the two hinge shafts 126 on the same hinge plate 127 is twice the radius of the semicircular shape of the side wall of the plate member. Two adjacent plates are in a collision state when being folded or in a parallel state.

As shown in fig. 5 and 6, the driving device 3 has two driving devices and is respectively installed in the two sliding blocks 14, and the driving device 3 includes a rotating shaft 31, a coil 32 (see fig. 6), a magnetic shoe 33 and a commutation structure 34 (see fig. 7). The rotating shaft 31 is vertically fixedly connected to the second plate 122 and is rotatably connected to the slider 14. The coil 32 is embedded in the rotating shaft 31, and the central axis of the coil 32 is perpendicular to the central axis of the rotating shaft 31. The magnetic shoe 33 has two fixed connection in the slider 14, and the two magnetic shoes 33 are disposed in axial symmetry with the central axis of the rotating shaft 31 as the symmetry axis and have opposite end-face magnetic poles approaching each other. The coil 32 is located between two magnetic shoes 33. When the second plate 122 is parallel to the fourth plate 124, the central axis of the coil 32 forms an angle of 45 ° with the magnetic induction line of the magnetic shoe 33. The coil 32 is electrically connected with a commutation structure 34, the commutation structure 34 is electrically connected with the computer 23, and the commutation structure 34 provides direct currents of two different directions for the coil 32 under the control of the computer 23. When the door is opened, the control reversing structure 34 of the computer 23 provides a forward current for the coil 32, the power-on lead is acted by an ampere force in the magnetic field, and the coil 32 drives the rotating shaft 31 to rotate 90 degrees clockwise, so that the second plate 122 is driven to rotate 90 degrees clockwise. When the door is closed, the control commutation structure 34 of the computer 23 provides a reverse current for the coil 32, the power-on wire is acted by an ampere force in the magnetic field, and the coil 32 drives the rotating shaft 31 to rotate 90 ° counterclockwise, thereby driving the second plate 122 to rotate 90 ° counterclockwise.

As shown in fig. 7, the commutation structure 34 includes a Z-shaped relay 341, a first diode 342, and a second diode 343, wherein one stationary contact of the Z-shaped relay 341 is electrically connected to the anode of the first diode 342, the other stationary contact of the Z-shaped relay 341 is electrically connected to the cathode of the second diode 343, the movable contact of the Z-shaped relay 341 is electrically connected to the ac power source, the cathode of the first diode 342 and the anode of the second diode 343 are both electrically connected to the coil 32, and the other end of the coil 32 is grounded. The coil end of the Z-shaped relay 341 is electrically connected to the computer 23, and the computer 23 is used to control the switching on and off of the coil of the Z-shaped relay 341. When the coil of the Z-shaped relay 341 is not energized, the moving contact of the Z-shaped relay 341 abuts against the stationary contact electrically connected to the positive electrode of the first diode 342, and the current applied to the coil 32 is in the forward direction. When the coil of the Z-shaped relay 341 is energized, the moving contact of the Z-shaped relay 341 abuts against the stationary contact electrically connected to the positive electrode of the second diode 343, and the current applied to the coil 32 is in the reverse direction at this time.

The implementation principle of the embodiment is as follows: when a person holding the radio frequency card 22 enters an effective working area of a radio frequency signal of the reader 21, the radio frequency card 22 generates induction current when entering a radio frequency signal area of the reader 21, the radio frequency card 22 obtains energy to be activated, the radio frequency card 22 transmits information in the radio frequency card 22 to the reader 21 after being activated, the reader 21 reads personal information of a user and transmits the personal information to the computer 23, the computer 23 compares the read personal information of the user with pre-stored user information, when the read personal information of the user is the same as the pre-stored user information, the computer 23 controls the electronic lock 13 to be closed, the computer 23 controls the coil of the Z-shaped relay 341 to be not electrified, at the moment, the movable contact of the Z-shaped relay 341 is abutted against a static contact electrically connected with the anode of the first diode 342, forward current is introduced into the coil 32, the coil 32 is acted by ampere force in a magnetic field, the coil 32 drives the rotating shaft, thereby driving the second plate 122 to rotate clockwise by 90 °. When the second plate 122 rotates clockwise, the first plate 121 and the third plate 123 are driven to rotate, so that the first plate 121, the second plate 122 and the third plate 123 are folded, and the fourth plate 124 is pulled to move, thereby opening the door structure 1.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. An entrance guard for automatically opening and closing a door comprises a door structure (1) and a recognition device (2), wherein the door structure (1) comprises a door frame (11), a door plate (12) movably arranged in the door frame (11) and an electronic lock (13) for limiting the movement of the door plate (12); the identification device (2) comprises a radio frequency card (22) with personal information of a user stored inside, a reader (21) for transmitting a radio frequency signal and a computer (23) electrically connected with the reader (21), wherein the computer (23) is pre-stored with user information, and the identification device is characterized in that: the electronic lock further comprises a driving device (3) for driving the door panel (12) to move, and the electronic lock (13) and the driving device (3) are both in electric signal connection with a computer (23); when the radio frequency card (22) enters a radio frequency signal effective working area of a reader (21), the radio frequency card (22) is activated and transmits information in the radio frequency card (22) to the reader (21), the reader (21) reads personal information of a user and transmits the personal information to a computer (23), the computer (23) compares the read personal information of the user with pre-stored user information, when the read personal information of the user is the same as the pre-stored user information, the computer (23) controls an electronic lock (13) to be closed, and the computer (23) controls a driving device (3) to open a door structure (1); the door plate (12) comprises a first plate (121), a second plate (122), a third plate (123) and a fourth plate (124), one end of the first plate (121) is hinged to the door frame (11), the other end of the first plate (121) is hinged to one end of the second plate (122), the other end of the second plate (122) is hinged to one end of the third plate (123), and the other end of the third plate (123) is hinged to one end of the fourth plate (124); the width of the second plate (122) is equal to the sum of the widths of the first plate (121) and the third plate (123), and the fourth plate (124) is connected to the doorframe (11) in a sliding manner; the door frame (11) is connected with a sliding block (14) in a sliding mode, the sliding direction of the sliding block (14) is parallel to that of a fourth plate (124), and the second plate (122) is connected to the sliding block (14) in a rotating mode; the driving device (3) is arranged in the sliding block (14) and drives the second plate (122) to rotate; the driving device (3) comprises a rotating shaft (31) fixedly connected with the second plate (122), a coil (32) fixedly connected with the rotating shaft (31), and two magnetic shoes (33) fixedly connected with the sliding block (14), the central axis of the coil (32) is vertical to the central axis of the rotating shaft (31), the two magnetic shoes (33) are arranged in axial symmetry by taking the central axis of the rotating shaft (31) as a symmetry axis, the end-face magnetic poles of the two magnetic shoes (33) which are close to each other are opposite, the coil (32) is positioned between the two magnetic shoes (33), when the second plate (122) is parallel to the fourth plate (124), the central axis of the coil (32) forms an included angle of 45 degrees with the magnetic induction line of the magnetic shoe (33), the coil (32) is electrically connected with a reversing structure (34) for changing the current direction of the coil, and the reversing structure (34) is electrically connected with the computer (23); the reversing structure (34) comprises a Z-shaped relay (341), a first diode (342) and a second diode (343), one static contact of the Z-shaped relay (341) is electrically connected with the positive electrode of the first diode (342), the other static contact of the Z-shaped relay (341) is electrically connected with the negative electrode of the second diode (343), the movable contact of the Z-shaped relay (341) is electrically connected with an alternating current power supply, the negative electrode of the first diode (342) and the positive electrode of the second diode (343) are both electrically connected with one end of a coil (32), the other end of the coil (32) is grounded, and the computer (23) controls the Z-shaped relay (341).

2. The automatic door opening and closing device according to claim 1, wherein: the door frame (11) are made of aluminum alloy materials, the door plate (12) is a glass door plate, the electronic lock (13) is an electromagnetic lock, an electromagnet (131) of the electronic lock (13) is embedded in one end, far away from the first plate (121), of the door frame (11), and an iron plate (132) of the electronic lock (13) is fixedly connected to the side wall of the fourth plate (124).

3. The automatic door opening and closing device according to claim 2, wherein: and rubber pads (128) are arranged at two ends of the thickness of the second plate (122).