CN214424265U

CN214424265U - Automatic door opening structure

Info

Publication number: CN214424265U
Application number: CN202023278426.3U
Authority: CN
Inventors: 汪兴国; 吴云兰; 杨明
Original assignee: Shanghai Yunlan Architectural Decoration Engineering Co ltd
Current assignee: Shanghai Yunlan Architectural Decoration Engineering Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-10-19
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to an automatic structure of opening door relates to the field of electromagnetic lock, and it is including establishing the casing on the door frame, establishing magnetism portion of inhaling on the casing, establishing the magnetic sheet on the door and being used for changing the magnetic reversal circuit of magnetism portion of inhaling, and magnetism portion of inhaling comprises coil and iron core, and the coil winding is on the iron core, and the coil is connected with reversal circuit, and reversal circuit and commercial power connection, reversal circuit include rectifier bridge circuit, first return circuit and second return circuit. This application has the effect of conveniently opening the door after the electromagnetic lock unblock.

Description

Automatic door opening structure

Technical Field

The application relates to the field of electromagnetic locks, in particular to an automatic door opening structure.

Background

The electromagnetic lock utilizes the electromagnetic principle to open the door and lock the door, and when the electric current passed through the winding coil in the electromagnetic lock, the electromagnetic lock can produce powerful suction and tightly adsorb the iron plate on the door and reach the effect of locking the door. When the door needs to be unlocked and opened, the wound coil is powered off, and the electromagnetic lock loses suction force and can open the door.

The existing electromagnetic lock needs personnel to push the door to open the door after the power failure.

SUMMERY OF THE UTILITY MODEL

In order to conveniently open the door after the electromagnetic lock unblock, this application provides an automatic structure of opening the door.

The application provides an automatic structure of opening door adopts following technical scheme:

an automatic door opening structure comprises a shell arranged on a door frame, a magnetic suction part arranged on the shell, a magnetic plate arranged on a door and a reversing circuit used for changing the magnetism of the magnetic suction part;

the magnetic part consists of a coil and an iron core, and the coil is wound on the iron core;

the coil is connected with the reverse circuit and the commercial power.

Through adopting above-mentioned technical scheme, the staff installs the door frame with the casing on, then install the magnetic sheet on the door, when the door is closed, magnetic sheet and casing contact, the reversal circuit switch-on is to magnetism portion circular telegram and production magnetism of inhaling, magnetism portion circular telegram back becomes the electro-magnet and opposite with the polarity of magnetic sheet, magnetism portion adsorbs the magnetic sheet, when the needs unblock is opened the door, reversal circuit applys reverse current to magnetism portion of inhaling, magnetism of magnetism portion of inhaling is the same with the magnetism of magnetic sheet, thereby produce the repulsion force, the door is opened under the effect of repulsion force, it is more convenient when opening the door.

Optionally, the inverter circuit includes a rectifier bridge circuit, a first loop and a second loop, and a switch is disposed on the door frame;

the rectifier bridge circuit is used for converting alternating current of commercial power into direct current, the input end of the rectifier bridge circuit is connected with the commercial power, and the output end of the rectifier bridge circuit is connected with the first loop and the second loop;

the first loop comprises an output end of the rectifier bridge circuit, a group of wiring ends of the switch and a coil, wherein the group of wiring ends of the switch are connected to two ends of the coil, and the switch is connected with the output end of the rectifier bridge circuit;

the second loop comprises the output end of the rectifier bridge circuit, the other group of connecting terminals of the switch and a coil, wherein two ends of the coil are connected with the other group of connecting terminals of the switch, and the switch is connected with the output end of the rectifier bridge circuit;

the two groups of terminals of the switch are connected to the coils in opposite positions.

Through adopting above-mentioned technical scheme, the rectifier bridge circuit turns into the alternating current of commercial power into direct current, and first return circuit and second return circuit switch on respectively and can change the polarity of magnetism portion of inhaling to reach the effect of closing the door and opening the door.

Optionally, a spring is arranged on the switch;

when the spring is in the original length, the first loop of the reverse circuit is conducted, and when the spring is in a compressed state, the second loop of the reverse circuit is conducted.

Through adopting above-mentioned technical scheme, when personnel need open the door only need press the switch can, the switch presses the first return circuit disconnection that will switch on and makes the second return circuit switch on, and the second return circuit disconnection makes the first return circuit switch on when personnel pine hand, and when personnel closed the door, magnetism portion of inhaling once more holds the magnetic sheet, has made things convenient for personnel's switch door.

Optionally, the length of the housing is the same as the length of the magnetic plate, and the width of the housing is the same as the width of the magnetic plate.

Through adopting above-mentioned technical scheme, it is more firm when magnetism portion adsorbs the magnetic sheet that inhales, and adsorption effect is better.

Optionally, the casing is provided with a mounting plate, the casing is provided with a screw, and the screw penetrates through the casing to be in threaded connection with the mounting plate.

Through adopting above-mentioned technical scheme, the staff installs the mounting panel on the door frame, passes through the screw with the casing again and installs on the mounting panel, and the casing is more firm on the mounting panel.

Optionally, a prying-resistant screw is arranged on the shell;

the anti-prying screw is positioned below the screw.

Through adopting above-mentioned technical scheme, the staff rotates the screw and installs the back on the mounting panel with the casing, and the staff rotates pick-proof screw and pushes up the pick-proof screw tightly, and the pick-proof screw blocks the screw, and when the door was in the closed condition, the pick-proof screw was located between magnetic sheet and the casing, and other personnel are difficult to lift the pick-proof screw off to be difficult to lift the casing off from the mounting panel, improved the security.

Optionally, a threaded pipe is connected to the door in a sliding mode and penetrates through the door, a limiting block is arranged on the threaded pipe, a first bolt is arranged on the magnetic plate, and the first bolt penetrates through the magnetic plate and is in threaded connection with the threaded pipe.

Through adopting above-mentioned technical scheme, during the staff beat the screwed pipe into the door earlier, then aim at the screwed pipe with the bolt on the magnetic sheet, rotate the bolt and tightly install the magnetic sheet on the door with the magnetic sheet top, the stopper makes the screwed pipe be difficult to drop from the door.

Optionally, a second bolt is arranged on the magnetic plate;

the second bolt penetrates through the magnetic plate and is in threaded connection with the door;

the second bolts are located on two sides of the screw.

Through adopting above-mentioned technical scheme, before the installation magnetic sheet, open two holes that are used for installing the second bolt on the door, during the installation magnetic sheet, with the second bolt installation in the hole, the magnetic sheet is difficult to and the AND gate emergence relative rotation, and the magnetic sheet is more firm on the door.

Optionally, the first circuit further includes a second switch;

one end of the second switch is connected with the coil, and the other end of the second switch is connected with the switch.

Through adopting above-mentioned technical scheme, when personnel pressed the switch, magnetism portion of inhaling is the same with the magnetism of magnetic sheet, and the door is pushed open under the effect of repulsion, and the disconnection of second switch this moment, magnetism portion of inhaling lose magnetism, and personnel can open the convenient ventilation of arbitrary angle with the door, and when personnel closed the door, the second switch was closed, and magnetism portion of inhaling was opposite with the polarity of magnetic sheet this moment, and magnetism portion of inhaling adsorbs the magnetic sheet and reaches the effect of closing the door.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the door needs to be unlocked and opened, the reversing circuit applies reverse current to the magnetic suction part, the magnetism of the magnetic suction part is the same as that of the magnetic plate, so that repulsive force is generated, the door is opened under the action of the repulsive force, and the door is more convenient to open;

2. after the installation of the shell on the installation plate by the rotating screws of the workers, the workers rotate the anti-prying screws to tightly push the anti-prying screws, the anti-prying screws block the screws, when the door is in a closed state, the anti-prying screws are located between the magnetic plate and the shell, other workers are not easy to lift the anti-prying screws off, and therefore the shell is not easy to lift off from the installation plate, and safety is improved.

Drawings

Fig. 1 is an isometric view of an automatic door opening structure of an embodiment of the present application.

Fig. 2 is a schematic structural view of the housing of fig. 1.

Fig. 3 is a partial structural view of the magnetic plate and the door of fig. 1.

Fig. 4 is a circuit diagram of an automatic door opening structure according to an embodiment of the present application.

Fig. 5 is a cross-sectional view of the switch of fig. 1.

Fig. 6 is another isometric view of the automatic door opening mechanism shown in fig. 1.

Fig. 7 is a cross-sectional view of the housing of fig. 1.

Description of reference numerals: 100. a door frame; 200. a door; 300. a screw; 1. a housing; 11. a screw; 2. a magnetic part; 21. a coil; 22. an iron core; 3. a magnetic plate; 4. a switch; 41. a second switch; 5. a spring; 6. mounting a plate; 7. a prying-resistant screw; 81. a threaded pipe; 82. a limiting block; 83. a first bolt; 9. and a second bolt.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses an automatic door opening structure.

Referring to fig. 1 and 2, the automatic door opening structure includes a housing 1, a magnetic attraction part 2, a magnetic plate 3, and a mounting plate 6.

The casing 1 is cuboid, and the casing 1 is provided with a groove for installing the magnetic part 2, and the magnetic part 2 is fixedly connected with the casing 1 and is positioned in the groove.

The mounting plate 6 has a square plate shape, the mounting plate 6 is used to mount the housing 1 to the door frame 100, and the worker inserts the screw 300 through the mounting plate 6 and rotates the screw 300 to fix the mounting plate 6 to the door frame 100. The shell 1 is connected with a screw 11 in a sliding mode, the screw 11 is an inner hexagonal screw, the screw 11 penetrates through the shell 1, and the screw 11 is in threaded connection with the mounting plate 6.

The staff installs mounting panel 6 to the top of door frame 100 through screw 300 earlier, then aligns casing 1 with mounting panel 6, makes the surface of magnetism portion 2 towards door 200, rotates screw 11 and can install on door frame 100 with casing 1 top is tight with casing 1.

Referring to fig. 2 and 3, the magnetic plate 3 is made of a magnetic material, and a surface of the magnetic plate 3 facing the case 1 is N-pole or S-pole. The magnetic plate 3 is a square plate. Sliding connection has screwed pipe 81 on door 200, the one end that screwed pipe 81 kept away from magnetic sheet 3 is equipped with stopper 82, stopper 82 and magnetic sheet 3 integrated into one piece, be equipped with first bolt 83 on the magnetic sheet 3, first bolt 83 is located the intermediate position of magnetic sheet 3, first bolt pass magnetic sheet 3 and with screwed pipe 81 threaded connection, screwed pipe 81 has reduced the damage to door 200 when first bolt 83 and door 200 threaded connection, stopper 82 makes screwed pipe 81 be difficult to drop from door 200.

During the staff beat into door 200 from the back of door 200 with screwed pipe 81 earlier, then install magnetic sheet 3 on door 200, make first bolt 83 pass magnetic sheet 3 and screwed pipe 81 threaded connection, when the staff installs first bolt 83 in screwed pipe 81, the staff fixes stopper 82 through the instrument, make stopper 82 be difficult to take place to rotate, it is more convenient when installing first bolt 83 that the staff rotates, the staff rotates first bolt 83 and pushes up magnetic sheet 3 tight back, the bolt cap of first bolt 83 flushes with magnetic sheet 3's surface.

Referring to fig. 1 and 4, in order to facilitate the person to open the door 200, a switch 4 is fixedly connected to a door frame 100, the switch 4 is a double-pole double-throw switch, the switch 4 is denoted by S in fig. 6, a magnetic attraction part 2 includes a coil 21 and an iron core 22, the coil 21 is denoted by L in fig. 6, the magnetic attraction part 2 is connected to the switch 4, the housing 1 is installed on the door frame 100 and then connected to the utility power, and the coil L is connected to the utility power and the switch S to form an inverter circuit.

The reverse circuit comprises a rectifier bridge circuit, a first loop and a second loop, the commercial power is connected to the input end of the rectifier bridge circuit, the alternating current of the commercial power is converted into direct current by the rectifier bridge circuit, and the output end of the rectifier bridge circuit is connected with the first loop and connected with the second loop. The first loop comprises an output end of the rectifier bridge circuit, the coil 21 and two blades of the switch S, the two blades of the switch S are connected with a mains supply, and one group of terminals of the switch S1 are connected to two ends of the coil L. The second loop comprises an output end of the rectifier bridge circuit, a coil L and two blades of a switch S1, the other group of connecting terminals of the switch S1 is connected with the two ends of the coil L, and when the first circuit and the second circuit are respectively conducted, the directions of currents flowing through the coil L are opposite. The coil 21 is wound around the iron core 22, and the iron core 22 can enhance the attraction force and the repulsion force of the magnetic attraction part 2.

Referring to fig. 5, a spring 5 is fixedly connected to the blade of the switch 4, one end of the spring 5 is fixedly connected to the blade of the switch 4, and the other end is fixedly connected to the base of the switch 4. When the spring 5 is in the original long state, the first loop is conducted, and the magnetic attraction part 2 is opposite to the magnetic plate 3 in polarity, so that the magnetic attraction part 2 can adsorb the magnetic plate 3. When a person opens the door 200, the person presses the switch 4, the spring 5 is compressed, the second loop of the reversing circuit is conducted, the direction of current flowing through the coil 21 is changed, so that the polarity of the magnetic part 2 is the same as that of the magnetic plate 3, the magnetic part 2 and the magnetic plate 3 repel each other, the door 200 is automatically opened under the action of repelling force, after the person enters the door 200, the spring 5 is switched back to the original long state from the compressed state, the first loop of the reversing loop is conducted, the direction of current flowing through the coil 21 is changed again, the polarity of the magnetic part 2 and the polarity of the magnetic plate 3 are opposite again, and when the person closes the door 200, the magnetic part 2 attracts the magnetic plate 3 to close the door 200.

Referring to fig. 5 and 6, the first circuit further includes a second switch 41, the second switch 41 is denoted by S2 in fig. 5, and one end of the second switch S2 is connected to the coil L and the other end is connected to the blade of the switch S1. When personnel pressed switch S1, magnetism portion 2 is the same with the magnetic pole of magnetic sheet 3, and door 200 is pushed open under the effect of repulsion, and second switch S2 becomes the disconnection by the closure this moment, and magnetism portion 2 loses magnetism, and personnel open arbitrary angle with the door this moment, make things convenient for personnel to ventilate. When a person closes the door 200, the door 200 closes the second switch S2 during the closing process, the magnetic attraction part 2 is magnetized again and the magnetism is opposite to that of the magnetic plate 3, and the magnetic attraction part 2 attracts the magnetic plate 3, thereby achieving the effect of closing the door.

Referring to fig. 1, the size of the surface of the housing 1 to which the magnetic plate 3 is attached is the same, and when the housing 1 adsorbs the magnetic plate 3, the magnetic plate 3 is more firmly adsorbed on the housing 1.

Referring to fig. 7, after the casing 1 is mounted on the mounting plate 6 by the screws 11, other persons can detach the screws 11 again, so as to reduce the security of the electromagnetic lock, in order to improve the security of the electromagnetic lock, two anti-prying screws 7 are connected to the casing 1 in a threaded manner, the anti-prying screws 7 penetrate through the casing 1 from a side close to the door 200, and the anti-prying screws 7 are perpendicular to the screws 11.

After the shell 1 is fixed on the mounting plate 6 through the screw 11, the screw 11 is located above the anti-prying screw 7, at the moment, the anti-prying screw 7 is rotated by a worker to tightly push the shell 1, the anti-prying screw 7 blocks the inner hexagonal screw 11, and when someone wants to dismount the screw 11 through the hexagonal wrench, the hexagonal wrench extends into the shell 1 and is blocked by the anti-prying screw 7, so that the safety of the electromagnetic lock is improved.

Referring to fig. 3, when the magnetic plate 3 is mounted on the door 200, since only the first bolt 83 is fixed, the magnetic plate 3 may rotate on the door 200, thereby reducing a contact area of the magnetic plate 3 with the magnetic attraction part 2. In order to stabilize the magnetic plate 3 on the door 200, two second bolts 9 are nailed on the magnetic plate 3, the two second bolts 9 being on both sides of the first bolt 83. After the magnetic plate 3 is installed on the door 200, the second bolt 9 has a limiting effect on the magnetic plate 3, the magnetic plate 3 is not easy to rotate relative to the door 200, and the magnetic plate 3 is more stable on the door 200.

The implementation principle of an automatic 200 structures that open door of the embodiment of this application does: the worker first mounts the mounting plate 6 to the door frame 100 and then mounts the housing 1 to the mounting plate 6. The staff installs magnetic sheet 3 on door 200 according to casing 1's position, when the personnel open the door 200, press switch 4, the second return circuit switches on, magnetism portion 2 is the same with magnetic sheet 3's polarity, door 200 is opened under the effect of repulsive force, personnel loosen behind the switch 4, spring 5 drives switch 4's plug-in strip removal, the first return circuit switches on, magnetism portion 2 is opposite with magnetic sheet 3's magnetism, personnel promote door 200 with the hand, when magnetic sheet 3 is close to magnetism portion 2 on door 200, magnetism portion 2 adsorbs magnetic sheet 3 and reaches the effect of closing door 200.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an automatic structure of opening door for install on door and door frame, its characterized in that: comprises a shell (1) arranged on a door frame, a magnetic part (2) arranged on the shell (1), a magnetic plate (3) arranged on a door and a reversing circuit used for changing the magnetism of the magnetic part (2);

the magnetic part (2) consists of a coil (21) and an iron core (22), and the coil (21) is wound on the iron core (22);

the coil (21) is connected with an inversion circuit, and the inversion circuit is connected with a mains supply.

2. An automatic door opening structure according to claim 1, wherein: the reversing circuit comprises a rectifier bridge circuit, a first loop and a second loop, and a switch (4) is arranged on the door frame;

the first loop comprises an output end of the rectifier bridge circuit, a group of wiring ends of the switch (4) and the coil (21), the group of wiring ends of the switch (4) are connected to two ends of the coil (21), and the switch (4) is connected with the output end of the rectifier bridge circuit;

the second loop comprises an output end of the rectifier bridge circuit, the other group of connecting terminals of the switch (4) and a coil (21), two ends of the coil (21) are connected with the other group of connecting terminals of the switch (4), and the switch (4) is connected with the output end of the rectifier bridge circuit;

two groups of terminals of the switch (4) are connected to the coil (21) in opposite positions.

3. An automatic door opening structure according to claim 2, wherein: a spring (5) is arranged on the switch (4);

when the spring (5) is in the original length, the first loop of the reverse circuit is conducted, and when the spring (5) is in a compressed state, the second loop of the reverse circuit is conducted.

4. An automatic door opening structure according to claim 1, wherein: the length of the shell (1) is the same as the length of the magnetic plate (3), and the width of the shell (1) is the same as the width of the magnetic plate (3).

5. An automatic door opening structure according to claim 1, wherein: be equipped with mounting panel (6) on casing (1), be equipped with screw (11) on casing (1), screw (11) pass casing (1) and mounting panel (6) threaded connection.

6. An automatic door opening structure according to claim 5, wherein: the shell (1) is provided with a prying-resistant screw (7);

the anti-prying screw (7) is positioned below the screw (11).

7. An automatic door opening structure according to claim 1, wherein: sliding connection has screwed pipe (81) on the door, screwed pipe (81) pass the door, be equipped with stopper (82) on screwed pipe (81), be equipped with first bolt (83) on magnetic sheet (3), first bolt (83) pass magnetic sheet (3) and screwed pipe (81) threaded connection.

8. An automatic door opening structure according to claim 7, wherein: a second bolt (9) is arranged on the magnetic plate (3);

the second bolt (9) penetrates through the magnetic plate (3) to be connected with the door threads;

the second bolts (9) are positioned on both sides of the first bolt (83).

9. An automatic door opening structure according to claim 2, wherein: the first circuit further comprises a second switch (41);

one end of the second switch (41) is connected with the coil (21), and the other end of the second switch is connected with the switch (4).