Electromagnetic bolt structure of split entrance door
Through the electromagnetic latch structure and lock tongue electronic control mechanism, convenient opening and closing of the door leaf is achieved, solving the cumbersome and beautiful operation of the traditional latch door leaf, and providing convenience and appearance of the elderly and children.
Patent Information
- Application Number
- CN202421597582.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The opening and closing process of the existing double-opening entrance door latch is complicated, especially for the elderly and children, and there are aesthetic problems.
Design an electromagnetic latch structure, using an electromagnet and a battery-driven lock tongue electronic control mechanism to realize one-button opening and closing of the latch door leaf, and control the expansion and contraction of the lock tongue through the battery latch switch button, combining the lock tongue protection box and lock Panels ensure symmetrical and beautiful appearance of the door leaf and secure seal.
It realizes convenient opening and closing of the latch door leaf, which is suitable for the elderly and children to operate, saves manpower and has a beautiful appearance, avoiding the complexity of the operation of the traditional latch door leaf and the inconvenience of the operation of the high door leaf for the elderly and children.
Smart Images
Figure CN222314868U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of entrance doors, in particular to an electromagnetic latch structure for a double-leaf entrance door. Background Art
[0002] A double-leaf entrance door refers to a door with two door leaves. Generally, when the door opening is wide, it is designed as a double-leaf structure for the convenience of opening and aesthetics. One of the door leaves is installed with a lock, which is called the lock door leaf, and the other door leaf is installed with a dummy lock and equipped with a latch, which is called the latch door leaf. In order to ensure the stability of the door when closing the door daily, a latch will be used to lock the latch door leaf in the door frame, and then the lock door leaf and the latch door leaf will be locked together through the main lock.
[0003] The latches used on the latch door leaf of the double-leaf entrance door are usually divided into two groups, upper and lower. When the latch door leaf is closed, the upper latch tongue is inserted into the top frame of the door frame, and the lower latch tongue is inserted into the bottom frame of the door frame or the ground where the latch lock box is installed. When the latch door leaf needs to be opened, it is necessary to pull the switches of the upper and lower latches respectively to retract the latch tongue into the latch door leaf. When closing the latch door leaf, it is necessary to push the latch door leaf to the latch hole position, and then push the upper and lower latch switches manually to insert the latch tongue into the latch hole. This makes the entire latch door leaf opening and closing process too complicated, and if the door leaf is high, the upper latch switch is extremely inconvenient to operate for the elderly and children. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an electromagnetic latch structure for a double-leaf entrance door. The latch door leaf can be opened or closed at will with one button, and the operation can be easily performed by the elderly and children. The operation is convenient and can effectively solve the problems in the background technology.
[0005] To achieve the above object, the utility model provides the following technical solution: an electromagnetic latch structure for a double-leaf entrance door, comprising a door frame, a lock door leaf movably installed on the left side of the door frame, and a latch door leaf movably installed on the right side of the door frame;
[0006] An outdoor dummy lock is installed at the front side of the middle of the left end of the latch door leaf, and an indoor dummy lock is installed at the rear side of the middle of the left end of the latch door leaf. A battery is detachably installed in the battery slot of the indoor dummy lock, and a battery latch switch button is installed on the top of the indoor dummy lock, and the battery latch switch button is electrically connected to the battery;
[0007] Two lock tongue protection boxes are respectively installed at the positions of the upper and lower sides of the door frame corresponding to the left end of the latch door leaf, and the two lock tongue protection boxes are respectively connected to the lock tongue locking panels by screws on the sides close to the latch door leaf, and the two lock tongue locking panels are respectively provided with lock tongue slots;
[0008] Two lock tongue electric control mechanisms are respectively installed on the upper and lower sides of the left end of the latch door leaf, and two lock tongues are respectively installed on the two lock tongue electric control mechanisms. The lock tongue has an oblique opening at one end away from the lock tongue electric control mechanism. If the lock door leaf and the latch door leaf are opened backward relative to the door frame, the oblique opening is located at the front side of the lock tongue. If the lock door leaf and the latch door leaf are opened forward relative to the door frame, the oblique opening is located at the rear side of the lock tongue.
[0009] When you need to close the entrance door, rotate the latch door leaf on the right side of the door frame. Due to the guidance of the oblique opening on the lock tongue, the lock tongue retracts into the lock tongue electric control mechanism. When the latch door leaf is completely in the door frame, the lock tongue electric control mechanism extends the lock tongue, and the end of the lock tongue extends into the lock tongue slot on the lock tongue locking panel. The lock tongue protection box protects the lock tongue. The lock tongue extends into the door frame and contacts too much dust. The lock tongue is engaged with the lock tongue slot on the lock tongue locking panel to complete the locking of the latch door leaf. Then close the lock door leaf. By locking the main lock on the lock door leaf and the latch door leaf, the locking of the two door leaves in the door frame is completed. When the door needs to be opened, first open the main lock on the lock door leaf to open the lock door leaf, then press the battery latch switch button, and the battery supplies power to the lock tongue electric control mechanism to allow the lock tongue to disengage from the lock tongue slot on the lock tongue locking panel. At this time, the latch door leaf can be opened, and the outdoor dummy lock and the indoor dummy lock can be used as door handles. At the same time, it also keeps the latch door leaf and the lock door leaf symmetrical and beautiful in appearance.
[0010] Further, the electric control mechanism of the lock tongue includes a mounting shell, a lock tongue control box, a lock tongue guide and limit panel, and a lock tongue extension and retraction control assembly. The upper and lower sides of the left end of the latch door leaf are respectively fixedly connected to two mounting shells, one end of the mounting shell close to the middle of the latch door leaf is fixedly connected to the lock tongue control box, and the end of the mounting shell away from the middle of the latch door leaf is fixedly connected to the lock tongue guide and limit panel, the middle of the lock tongue guide and limit panel is provided with a lock tongue guide and limit slot, and a lock tongue is installed in the lock tongue control box through the lock tongue extension and retraction control assembly, and the end of the lock tongue away from the lock tongue extension and retraction control assembly passes through the lock tongue guide and limit slot and corresponds to the lock tongue slot. The mounting shell is used to install the lock tongue control box, and the lock tongue extension and retraction control assembly is used to control the lock tongue to extend and retract from the lock tongue guide and limit slot on the lock tongue guide and limit panel, and the lock tongue guide and limit slot guides and limits the lock tongue to prevent the lock tongue from sliding left and right and forward and backward when extending and retracting, so that the lock tongue can be inserted into the lock tongue slot when it is extended to complete the locking of the latch door leaf.
[0011] Furthermore, the lock tongue telescopic control assembly includes a bracket, a telescopic rod, a spring, a magnet and an electromagnet. One end of the lock tongue control box close to the middle of the latch door leaf is connected to the bracket through two vertical telescopic rods, the telescopic rods are sleeved with springs, the side of the bracket away from the telescopic rods is connected to the lock tongue, the lock tongue passes through the through hole at the end of the lock tongue control box, the middle of the side of the bracket close to the telescopic rod is fixedly connected to a magnet, and an electromagnet is installed at a position between the two telescopic rods in the lock tongue control box. After the electromagnet is energized, the magnetic poles of the electromagnet and the end of the magnetic block that are close to each other are opposite, and the battery latch switch button is pressed. The battery supplies power to the electromagnet, and the electromagnet magnetically attracts the magnetic block, allowing the bracket to approach the corresponding electromagnet, the spring is compressed, and the telescopic rod is shortened, which can drive the lock tongue to pass through the lock tongue guide limit groove on the lock tongue guide limit panel and retract into the installation shell. The lock tongue is disengaged from the lock tongue slot, and the latch door leaf is automatically bounced off the door frame by the rebound force of the sealing strip on the inner side of the door frame, so that the latch door leaf and the door frame are separated, and the latch door leaf can be easily opened at this time, realizing one-button opening of the latch. The door leaf, then the electromagnet is powered off, the spring rebounds, the telescopic rod extends, the magnetic block and the bracket leave the electromagnet, and the lock tongue extends from the lock tongue guide limit slot on the lock tongue guide limit panel. In the process of closing the latch door leaf, due to the guidance of the oblique mouth on the lock tongue, the lock tongue is retracted into the lock tongue guide limit slot, the spring is compressed again, and the telescopic rod is shortened again. When the latch door leaf is closed in place, the spring rebounds again to extend the telescopic rod again, and the lock tongue extends out of the lock tongue guide limit slot again and is engaged with the lock tongue slot. Therefore, the electromagnet is not required to work in the process of closing the latch door leaf, saving electricity.
[0012] Furthermore, it also includes a fireproof hose and a power cord. The electromagnet is connected to the battery latch switch button through the power cord. The power cord passes through the threading holes on the mounting shell and the lock tongue control box, and the part of the power cord located outside the mounting shell is sleeved with a fireproof hose. The fireproof hose is used to protect the power cord. The battery latch switch button is used to control the on and off of the battery and the electromagnet, and control the battery to supply power to the electromagnet.
[0013] Furthermore, it also includes a rubber plug, which is arranged in the threading holes on the installation shell and the lock tongue control box. The power cord passes through the middle of the rubber plug. The rubber plug can close the threading hole to maintain the sealing inside the installation shell and the lock tongue control box.
[0014] Furthermore, it also includes a battery cover, which is clamped on the battery slot of the indoor fake lock, and covers the battery, and is used to protect the battery.
[0015] Furthermore, it also includes a main lock and a main lock hole. The main lock is installed in the middle of the right side of the lock door leaf, and the main lock hole is opened on the left side of the latch door leaf at a position corresponding to the main lock. The main lock and the main lock hole cooperate to lock the lock door leaf and the latch door leaf together.
[0016] Compared with the prior art, the beneficial effects of the electromagnetic latch structure for double-opening entrance doors are:
[0017] 1. When you need to open the door, first open the main lock on the lock door leaf to open the lock door leaf, then press the battery latch switch button, the battery will power the lock tongue electric control mechanism, and let the lock tongue disengage from the lock tongue slot on the lock tongue locking panel. At this time, you can open the latch door leaf, the outdoor fake lock and the indoor fake lock can be used as door handles, and at the same time, the latch door leaf and the lock door leaf remain symmetrical and beautiful in appearance.
[0018] 2. The latch door leaf can be opened or closed with one button. The operation is convenient for both the elderly and children. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the rear structure of the utility model;
[0021] Figure 3 It is a schematic diagram of the partial structure of the rear side of the utility model;
[0022] Figure 4 For this utility model Figure 3 A schematic diagram of the partially enlarged structure at center A;
[0023] Figure 5 It is a schematic diagram of the partial structure of the front side of the utility model;
[0024] Figure 6 For this utility model Figure 5 A schematic diagram of the partially enlarged structure at B in the middle;
[0025] Figure 7 The local structure of the utility model is shown in FIG. Figure 1 ;
[0026] Figure 8 The local structure of the utility model is shown in FIG. Figure 2 ;
[0027] Fig. 9 For this utility model Figure 8 Schematic diagram of the cross-section structure;
[0028] In the figure: 1 door frame, 2 latch door leaf, 3 lock door leaf, 4 outdoor dummy lock, 5 main lock, 6 indoor dummy lock, 7 battery, 8 battery cover, 9 lock tongue protection box, 10 battery latch switch button, 11 main lock keyhole, 12 fireproof hose, 13 power cord, 14 lock tongue locking panel, 15 installation shell, 16 lock tongue control box, 17 rubber plug, 18 lock tongue guide limit panel, 19 lock tongue, 20 bracket, 21 telescopic rod, 22 spring, 23 magnet, 24 electromagnet. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] For example, see Figures 1 to 9 The utility model provides a technical solution: an electromagnetic latch structure for a double-leaf entrance door, comprising a door frame 1, a lock door leaf 3 is movably installed on the left side of the door frame 1, and a latch door leaf 2 is movably installed on the right side of the door frame 1;
[0031] It also includes a main lock 5 and a main lock hole 11. The main lock 5 is installed in the middle of the right side of the lock door leaf 3, and the main lock hole 11 is opened on the left side of the latch door leaf 2 at a position corresponding to the main lock 5. The main lock 5 and the main lock hole 11 cooperate to lock the lock door leaf 3 and the latch door leaf 2 together.
[0032] An outdoor dummy lock 4 is installed on the front side of the middle of the left end of the latch door leaf 2, and an indoor dummy lock 6 is installed on the rear side of the middle of the left end of the latch door leaf 2. A battery 7 is detachably installed in the battery slot of the indoor dummy lock 6. The battery 7 adopts a rechargeable battery and can be repeatedly charged. A battery latch switch button 10 is installed on the top of the indoor dummy lock 6, and the battery latch switch button 10 is electrically connected to the battery 7;
[0033] The utility model also comprises a battery outer cover 8 , which is clamped on the battery slot of the indoor fake lock 6 , and the battery outer cover 8 covers the storage battery 7 , and the battery outer cover 8 is used to protect the storage battery 7 .
[0034] Two lock tongue protection boxes 9 are respectively installed at the positions corresponding to the left end of the latch door leaf 2 on the upper and lower sides of the door frame 1. The two lock tongue protection boxes 9 are respectively connected to the lock tongue locking panels 14 by screws on the sides close to the latch door leaf 2. The two lock tongue locking panels 14 are respectively provided with lock tongue slots.
[0035] Two lock tongue electric control mechanisms are respectively installed on the upper and lower sides of the left end of the latch door leaf 2, and two lock tongues 19 are respectively installed on the two lock tongue electric control mechanisms. The lock tongue 19 has an oblique opening at one end away from the lock tongue electric control mechanism. If the lock door leaf 3 and the latch door leaf 2 are opened backward relative to the door frame 1, the oblique opening is located on the front side of the lock tongue 19. If the lock door leaf 3 and the latch door leaf 2 are opened forward relative to the door frame 1, the oblique opening is located on the rear side of the lock tongue 19.
[0036] The lock tongue electric control mechanism includes a mounting shell 15, a lock tongue control box 16, a lock tongue guide limit panel 18 and a lock tongue telescopic control assembly. Two mounting shells 15 are fixedly connected to the upper and lower sides of the left end of the latch door leaf 2, and the end of the mounting shell 15 close to the middle of the latch door leaf 2 is fixedly connected to the lock tongue control box 16, and the end of the mounting shell 15 away from the middle of the latch door leaf 2 is fixedly connected to the lock tongue guide limit panel 18. A lock tongue guide limit through groove is provided in the middle of the lock tongue guide limit panel 18. A lock tongue 19 is installed in the lock tongue control box 16 through the lock tongue telescopic control assembly, and the end of the lock tongue 19 away from the lock tongue telescopic control assembly passes through the lock tongue guide limit through groove and corresponds to the lock tongue slot. The mounting shell 15 is used to mount the lock tongue control box 16, and the lock tongue extension and retraction control assembly is used to control the lock tongue 19 to extend and retract from the lock tongue guide and limit groove on the lock tongue guide and limit panel 18. The lock tongue guide and limit groove guides and limits the lock tongue 19 to prevent the lock tongue 19 from sliding left and right, front and back when extending and retracting, so that the lock tongue 19 can be inserted into the lock tongue slot when extended to complete the locking of the latch door leaf 2.
[0037] The lock tongue telescopic control assembly includes a bracket 20, a telescopic rod 21, a spring 22, a magnet 23 and an electromagnet 24. One end of the lock tongue control box 16 close to the middle of the latch door leaf 2 is connected to the bracket 20 through two vertical telescopic rods 21. The spring 22 is sleeved on the telescopic rod 21. The side of the bracket 20 away from the telescopic rod 21 is connected to the lock tongue 19. The lock tongue 19 passes through the through hole at the end of the lock tongue control box 16. The middle part of the side of the bracket 20 close to the telescopic rod 21 is fixedly connected to the magnet 23. The electromagnet 24 is installed at a position between the two telescopic rods 21 in the lock tongue control box 16. After the electromagnet 24 is energized, the magnetic poles of the end of the electromagnet 24 and the magnet block 23 that are close to each other are opposite, and the battery latch switch button 10 is pressed. The battery 7 supplies power to the electromagnet 24, and the electromagnet 24 magnetically attracts the magnet block 23, allowing the bracket 20 to approach the corresponding electromagnet 24, the spring 22 is compressed, and the telescopic rod 21 is shortened, which can drive the lock tongue 19 to pass through the lock tongue guide limit groove on the lock tongue guide limit panel 18 and retract into the installation shell 15, and the lock tongue 19 is disengaged from the lock tongue slot. The latch door leaf 2 is automatically bounced off the door frame 1 by the rebound force of the sealing strip on the inner side of the door frame 1, so that the latch door leaf 2 is separated from the door frame 1, and the latch door leaf 2 can be easily opened at this time, realizing one-key opening of the latch. The door leaf 2 is then powered off by the electromagnet 24, and the spring 22 rebounds, allowing the telescopic rod 21 to extend, the magnetic block 23 and the bracket 20 leave the electromagnet 24, and the lock tongue 19 extends from the lock tongue guide limit slot on the lock tongue guide limit panel 18. In the process of closing the latch door leaf 2, due to the guidance of the oblique mouth on the lock tongue 19, the lock tongue 19 is retracted into the lock tongue guide limit slot, the spring 22 is compressed again, and the telescopic rod 21 is shortened again. When the latch door leaf 2 is closed in place, the spring 22 rebounds again, allowing the telescopic rod 21 to extend again, and the lock tongue 19 extends out of the lock tongue guide limit slot again and is engaged with the lock tongue slot. Therefore, the electromagnet 24 is not required to work in the process of closing the latch door leaf 2, saving electricity.
[0038] When the entrance door needs to be closed, the latch door leaf 2 is movably rotated to the right side of the door frame 1. Due to the guidance of the oblique opening on the lock tongue 19, the lock tongue 19 is retracted into the lock tongue electric control mechanism. When the latch door leaf 2 is completely entered into the door frame 1, the lock tongue electric control mechanism allows the lock tongue 19 to extend, and the end of the lock tongue 19 extends into the lock tongue slot on the lock tongue locking panel 14. The lock tongue protection box 9 protects the lock tongue 19. The lock tongue 19 extends into the door frame 1 and contacts too much dust. The lock tongue 19 is engaged with the lock tongue slot on the lock tongue locking panel 14 to complete the locking of the latch door leaf 2, and then the lock is closed. The latch door leaf 2 is locked with the help of the main lock on the lock door leaf 3 and the latch door leaf 2, so that the locking of the two door leaves in the door frame 1 is completed. When the door needs to be opened, the main lock on the lock door leaf 3 is opened first to open the lock door leaf 3, and then the battery latch switch button 10 is pressed, and the battery 7 supplies power to the lock tongue electric control mechanism to disengage the lock tongue 19 from the lock tongue slot on the lock tongue locking panel 14. At this time, the latch door leaf 2 can be opened, and the outdoor dummy lock 4 and the indoor dummy lock 6 can be used as door handles. At the same time, the latch door leaf 2 and the lock door leaf 3 are kept symmetrical and beautiful in appearance.
[0039] For example 2, please refer to Figures 1 to 9 The utility model provides a technical solution: an electromagnetic latch structure for a double-leaf entrance door. The structure of this embodiment is roughly the same as that of the first embodiment, except that:
[0040] It also includes a fireproof hose 12 and a power cord 13. The electromagnet 24 is connected to the battery latch switch button 10 through the power cord 13. The power cord 13 passes through the threading holes on the mounting shell 15 and the lock tongue control box 16, and the part of the power cord 13 located outside the mounting shell 15 is sleeved with the fireproof hose 12. The fireproof hose 12 is used to protect the power cord 13. The battery latch switch button 10 is used to control the on and off of the battery 7 and the electromagnet 24, and control the battery 7 to supply power to the electromagnet 24. The battery latch switch button 10 controls the operation of the electromagnet 24 using existing technology.
[0041] It also includes a rubber plug 17, which is arranged in the threading holes on the installation shell 15 and the lock tongue control box 16. The power cord 13 passes through the middle of the rubber plug 17. The rubber plug 17 can close the threading hole to maintain the sealing inside the installation shell 15 and the lock tongue control box 16.
[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An electromagnetic latch structure for a double-leaf entrance door, comprising a door frame (1), a lock door leaf (3) being movably mounted on the left side of the door frame (1), and a latch door leaf (2) being movably mounted on the right side of the door frame (1), characterized in that: An outdoor dummy lock (4) is installed on the front side of the middle of the left end of the latch door leaf (2), and an indoor dummy lock (6) is installed on the rear side of the middle of the left end of the latch door leaf (2). A storage battery (7) is detachably installed in the battery slot of the indoor dummy lock (6), and a battery latch switch button (10) is installed on the top of the indoor dummy lock (6); Two lock tongue protection boxes (9) are respectively installed at positions on the upper and lower sides of the door frame (1) corresponding to the left end of the latch door leaf (2); a lock tongue locking panel (14) is respectively fixedly connected to one side of the two lock tongue protection boxes (9) close to the latch door leaf (2); and a lock tongue locking slot is respectively provided on the two lock tongue locking panels (14); Two lock tongue electric control mechanisms are respectively installed on the upper and lower sides of the left end of the latch door leaf (2), and two lock tongues (19) are respectively installed on the two lock tongue electric control mechanisms.
2. The electromagnetic latch structure for a double-leaf entrance door according to claim 1, characterized in that: The bolt electric control mechanism comprises a mounting shell (15), a bolt control box (16), a bolt guide limit panel (18) and a bolt telescopic control assembly. The upper and lower sides of the left end of the bolt door leaf (2) are respectively fixedly connected to the two mounting shells (15). One end of the mounting shell (15) close to the middle of the bolt door leaf (2) is fixedly connected to the bolt control box (16), and one end of the mounting shell (15) away from the middle of the bolt door leaf (2) is fixedly connected to the bolt guide limit panel (18). The middle of the bolt guide limit panel (18) is provided with a bolt guide limit through groove. A bolt (19) is installed in the bolt control box (16) via the bolt telescopic control assembly. One end of the bolt (19) away from the bolt telescopic control assembly passes through the bolt guide limit through groove and corresponds to the bolt clamping groove.
3. The electromagnetic latch structure for a double-leaf entrance door according to claim 2, characterized in that: The lock tongue telescopic control assembly comprises a bracket (20), a telescopic rod (21), a spring (22), a magnet (23) and an electromagnet (24); one end of the lock tongue control box (16) close to the middle of the latch door leaf (2) is connected to the bracket (20) via two vertical telescopic rods (21); the spring (22) is sleeved on the telescopic rod (21); the side of the bracket (20) away from the telescopic rod (21) is connected to the lock tongue (19); the lock tongue (19) passes through a through hole at the end of the lock tongue control box (16); the middle of the side of the bracket (20) close to the telescopic rod (21) is fixedly connected to the magnet (23); and the electromagnet (24) is installed at a position between the two telescopic rods (21) in the lock tongue control box (16).
4. The electromagnetic latch structure for a double-leaf entrance door according to claim 3, characterized in that: It also includes a fireproof hose (12) and a power cord (13), wherein the electromagnet (24) is connected to the battery latch switch button (10) via the power cord (13), the power cord (13) passes through threading holes on the mounting shell (15) and the bolt control box (16), and the portion of the power cord (13) located outside the mounting shell (15) is sleeved with the fireproof hose (12).
5. The electromagnetic latch structure for a double-leaf entrance door according to claim 4, characterized in that: The invention also comprises a rubber plug (17), wherein the rubber plug (17) is arranged in the threading holes on the mounting shell (15) and the bolt control box (16), and the power line (13) passes through the middle of the rubber plug (17).
6. The electromagnetic latch structure for a double-leaf entrance door according to claim 1, characterized in that: It also includes a battery cover (8), the battery cover (8) being snap-connected to the battery slot of the indoor fake lock (6), and the battery cover (8) covers the storage battery (7).
7. The electromagnetic latch structure for a double-leaf entrance door according to claim 1, characterized in that: It also comprises a main lock (5) and a main lock hole (11), wherein the main lock (5) is installed in the middle of the right side of the lock door leaf (3), and the main lock hole (11) is opened on the left side of the latch door leaf (2) at a position corresponding to the main lock (5).