Safety door

Abstract

A safety door (100), comprising a frame body (10), a door body (20), a first lock (30) and a second lock (40); the door body (20) is hinged to the frame body (10); the first lock (30) comprises a control portion (31) and a first locking portion (32), the first locking portion (32) being wirelessly connected to the control portion (31), and the first locking portion (32) being provided on one of the door body (20) or the frame body (10) and being used for locking or unlocking the other; the second lock (40) is provided on the frame body (10) and is suitable for locking or unlocking the door body (20).

Description

Security door

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202423122997.6, filed on December 17, 2024, entitled "Security Door", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of door and railing technology, and in particular to a security door. Background Technology

[0004] For families with children or pets, it's common to install door railings in specific areas to prevent children from running around and entering dangerous areas, and to keep pets like dogs or cats out of children's rooms. For example, door railings are often installed at the entrances to the kitchen and living room, between the children's room and the living room, at the main gate of a villa, and at stairwells. However, most door railings are purely mechanical structures, making easy unlocking difficult, especially for adults carrying items, which can be very inconvenient and cause user frustration.

[0005] Application content

[0006] This application aims to at least partially address one of the technical problems in the related art. To this end, one objective of this application is to propose a security door that simultaneously features a first lock and a second lock, which can improve the reliability of the door when locked, and the second lock can be wirelessly controlled and arranged according to usage needs, thereby improving both flexibility and security.

[0007] A security door according to an embodiment of this application includes: a frame, a door body, a first lock, and a second lock. The door body is hinged to the frame. The first lock includes a control part and a first locking part. The first locking part is wirelessly connected to the control part. The first locking part is disposed in one of the door body or the frame and is used to lock or unlock the other. The second lock is disposed in the frame and is adapted to lock or unlock the door body.

[0008] According to the safety door of this application embodiment, the first locking part can be provided on the door body, locking the door body to the frame; alternatively, the first locking part can be provided on the frame, preventing the door body from rotating relative to the frame to open. Specifically, the first lock includes a control part wirelessly connected to the first locking part. In this way, the user can unlock the door through the control part, providing convenience for the user's door opening operation. For example, unlocking can be controlled by touch or sensing. Since the control part is wirelessly connected to the first locking part, the control part does not need to be installed on the door body or frame, allowing for flexible arrangement. This allows the control part to be installed in a more convenient location for user operation, improving user convenience, especially when the safety door is used to prevent children from opening it. By providing a control part wirelessly connected to the locking part, the control part can be installed in a place inaccessible to children, thereby improving the safety and reliability of the safety door during use. For example, the control part can be installed on the wall near the safety door, or it can be handheld. In addition, the security door includes a second lock, which is located in the frame and is suitable for locking or unlocking the door. Thus, the security door can have two locks simultaneously, improving security when locked and further reducing the risk of accidental opening. Therefore, by simultaneously setting a first lock and a second lock, the reliability of the door when locked can be improved, and the second lock can be wirelessly controlled and deployed according to usage needs, enhancing flexibility and ease of operation.

[0009] In addition, the security door according to the above embodiments of this application may also have the following additional technical features:

[0010] In some examples of this application, the first lock and the second lock are located at opposite ends of the security door along the height direction.

[0011] In some examples of this application, the control unit includes a switch and an infrared transmitter, the switch being connected to the infrared transmitter; the first locking unit includes a locking element and an electromagnetic sensor, the electromagnetic sensor transmitting signals to the infrared transmitter, and the electromagnetic sensor being connected to the locking element and driving the locking element to lock or unlock.

[0012] In some examples of this application, the control unit includes a housing, the infrared transmitter is disposed within the housing, a portion of the switch is disposed within the housing and abuts against the infrared transmitter, and a portion extends out of the housing.

[0013] In some examples of this application, the switch includes a contact end and a rod body. The housing is provided with a positioning hole, the rod body passes through the positioning hole, one end of the rod body is connected to the contact end, and the other end of the rod body is provided with a flange, the flange abutting against the housing.

[0014] In some examples of this application, the first lock further includes a first mating part disposed on the door body, and a first locking part disposed on the frame body. The first locking part includes a latch, which can extend into the first mating part to lock the door body, and the latch can retract to leave the first mating part.

[0015] In some examples of this application, the second lock includes a second locking part and a second mating part. The second locking part is movably disposed on the frame, and the second mating part is disposed on the door. The second locking part has a locked position and an unlocked position. In the locked position, the second locking part stops the second mating part. In the unlocked position, the second locking part separates from the second mating part.

[0016] In some examples of this application, the second locking part includes a bracket, a first pedal and a second pedal, the bracket being movably connected to the frame, the first pedal and the second pedal being connected to both sides of the bracket, and the first pedal and the second pedal being adapted to drive the bracket to move from the locked position to the unlocked position.

[0017] In some examples of this application, the second locking part further includes a reset member adapted to drive the bracket from the unlocked position to the locked position.

[0018] In some examples of this application, the security door further includes at least one extension, the frame includes a first connecting portion and a second connecting portion, the door body is hinged to one of the first connecting portion and the second connecting portion and locked to the other when the door is closed, the connecting portion includes a first crossbar, a second crossbar and at least one guardrail, the first crossbar and the second crossbar are connected to opposite ends of the guardrail, and the extension is detachably connected to the first crossbar or the second crossbar.

[0019] In some examples of this application, the door includes a door frame and a plurality of railings, the plurality of railings being disposed within the door frame.

[0020] In some examples of this application, the security door further includes a stop portion rotatably disposed on the frame. The stop portion has a first position and a second position. In the first position, the stop portion stops the door body in the opening direction. In the second position, the stop portion locks the door body offset in the opening direction.

[0021] In some examples of this application, the stop is located between the first lock and the second lock. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the structure of a security door in some embodiments of this application (showing the state when the door is closed or locked).

[0023] Figure 2 is a schematic diagram of the structure of a security door in some embodiments of this application (showing the state when the door is open or unlocked).

[0024] Figure 3 is a cross-sectional view of the control unit in some embodiments of this application;

[0025] Figure 4 is a partial enlarged view of the structure of the security door in some embodiments of this application (showing the locking state of the first locking part of the first locking part of the first mating part).

[0026] Figure 5 is a partial enlarged view of the structure of the security door in some embodiments of this application (showing the unlocking state of the first locking part of the first mating part);

[0027] Figure 6 is a partial cross-sectional view of the security door in some embodiments of this application (showing the structure of the second locking part);

[0028] Figure 7 is a partial enlarged view of the structure of the security door in some embodiments of this application (showing the locking state of the second locking part of the second locking part).

[0029] Figure 8 is a partial enlarged view of the security door structure in some embodiments of this application (showing the unlocking state of the second locking part of the second mating part).

[0030] Figure 9 is a partial enlarged view of the structure of a safety door in some embodiments of this application (showing the structure of the stop portion, wherein the first stop member is located in the first position and the second stop portion is located in the second position).

[0031] Figure label:

[0032] 100. Safety door; 10. Frame; 11. First connecting part; 12. Second connecting part; 13. First crossbar; 14. Second crossbar; 15. Guardrail; 20. Door body; 30. First lock; 31. Control unit; 311. Housing; 312. Switch; 3121. Contact end; 3122. Rod; 313. Elastic element; 32. First locking part; 321. Locking element; 3211. Lock tongue; 33. First mating part; 330. Mating groove; 40. Second lock; 41. Second locking part; 413. Bracket; 411. First pedal; 412. Second pedal; 42. Second mating part; 50. Stop part; 51. First stop element; 52. Second stop element; 53. Connector; 61. First extension part; 62. Second extension part; 70. Fixing bolt. Embodiments of the present invention

[0033] In related technologies, most safety doors are purely mechanical structures with a low unlocking position, posing a risk of malfunction and requiring a relatively cumbersome unlocking process. Therefore, this application proposes a child safety door 100 that is simple, quick, and smooth to unlock, addressing the problems of unreliable locking and cumbersome unlocking processes in existing safety doors 100.

[0034] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0035] Referring to Figures 1 and 2, the security door 100 according to an embodiment of this application includes: a frame 10, a door 20, and a first lock 30. The door 20 is hinged to the frame 10. The first lock 30 includes a control unit 31 and a first locking part 32. The first locking part 32 is wirelessly connected to the control unit 31. The first locking part 32 is disposed on either the door 20 or the frame 10 and is used to lock or unlock the other. The first locking part 32 may be disposed on the door 20, locking the door 20 to the frame 10; alternatively, the first locking part 32 may be disposed on the frame 10, preventing the door 20 from rotating relative to the frame 10 to open the door. Specifically, the first lock 30 includes a control unit 31 wirelessly connected to the first locking part. This allows the control unit 31 to be flexibly arranged without needing to be mounted on the door body 20 or frame 10, making it easier for the user to operate. This is particularly beneficial when the safety door 100 is used to prevent children from opening it. By providing the control unit 31 wirelessly connected to the locking part, it can be installed in a place inaccessible to children, thus improving the safety and reliability of the safety door 100. For example, the control unit 31 can be mounted on a wall near the safety door 100 or can be handheld.

[0036] Furthermore, the security door 100 also includes a second lock 40, which is located on the frame 10 and is adapted to lock or unlock the door 20. Thus, the security door 100 can have two locks at the same time, which can improve the security when locked and further reduce the risk of accidental opening.

[0037] According to the embodiments of this application, the security door 100 can improve the reliability of the door 20 when locked by simultaneously setting a first lock 30 and a second lock 40. The second lock 40 can be wirelessly controlled and can be arranged according to usage needs, which helps to improve the flexibility of use and the convenience of operation.

[0038] Optionally, the first locking part 32 can be provided on the frame 10. In this way, the locking parts of the first lock 30 and the second lock 40 are both provided on the frame 10, which helps to improve the consistency and aesthetics of the overall structure of the security door 100.

[0039] Referring to Figure 1, in some embodiments of this application, the first lock 30 and the second lock 40 are located at opposite ends of the security door 100 along its height direction, which can improve the stability of the locking and facilitate user unlocking. Specifically, the first lock 30 can be a wirelessly controlled lock, and the second lock 40 can be a lock unlocked by pressing with a hand or foot. For example, the first lock 30 is located at the upper end of the security door 100, and the second lock 40 can be located at the lower end of the security door 100. When opening the door, the first lock 30 can be unlocked by manually operating the control unit 31, and the second lock 40 can be unlocked by stepping on it. Alternatively, when the overall height of the door is low, the first locking part 32 of the first lock 30 can be placed at the bottom of the security door 100, the control part 31 can be installed on the wall near the security door 100, and the second lock 40 can be placed at the top of the door body 20. When opening the door, the control part 31 can be controlled to unlock the first lock 30 first, and when pushing the door, the second lock 40 can be manually pressed to unlock and open the door.

[0040] Referring to Figure 3, in some embodiments of this application, the control unit 31 includes a switch 312 and an infrared transmitter, with the switch 312 connected to the infrared transmitter; the first locking unit 32 includes a locking element 321 and an electromagnetic sensor, with the electromagnetic sensor transmitting signals to the infrared transmitter, and the electromagnetic sensor connected to the locking element 321 and driving the locking element 321 to lock or unlock. Specifically, the first lock 30 can be set as an infrared sensor switch, which can improve the sensitivity of control and has a relatively simple structure, making it easy to apply.

[0041] According to the security door 100 of this application, the user can unlock it by touch switch, which improves the convenience and speed of unlocking compared to mechanical unlocking in related technologies, and provides convenience for users.

[0042] Alternatively, the first lock can be controlled via a light sensor, or via Bluetooth or Wi-Fi.

[0043] Referring to Figure 3, in some embodiments of this application, the control unit 31 includes a housing 311, an infrared transmitter disposed within the housing 311, and a portion of the switch 312 disposed within the housing 311 and abutting against the infrared transmitter, while a portion extends out of the housing 311. Thus, the user can control the locking and unlocking of the first locking part 32 by touching the switch, which is convenient and highly sensitive. In application, the housing 311 can be adhered to a wall or object, or hung on a support frame, improving application flexibility. After the user touches the switch 312, an infrared signal is emitted; upon receiving the infrared signal, the electromagnetic lock is energized and unlocked.

[0044] Furthermore, in some embodiments of this application, the switch 312 includes a contact end 3121 and a rod 3122. The housing 311 is provided with a positioning hole, the rod 3122 passes through the positioning hole, one end of the rod 3122 is connected to the contact end 3121, and the other end of the rod 3122 is provided with a flange that abuts against the housing 311. This can improve the connection stability of the switch 312.

[0045] In some embodiments of this application, the control unit 31 further includes an elastic element 313, which is used to drive the switch 312 to automatically reset after being touched, so as to facilitate user use.

[0046] Referring to Figures 4 and 5, in some embodiments of this application, the first lock 30 further includes a first mating part 33, which is disposed on the door body 20. A first locking part 32 is disposed on the frame 10. The first locking part 32 includes a latch 3211, which can extend into the first mating part 33 to lock the door body 20. The latch 3211 can retract to disengage from the first mating part 33. Figure 4 shows the state where the first locking part 32 locks the door body 20, with the latch 3211 extending into the first mating part 33 to restrict the movement of the door body 20. Figure 5 shows the state where the first locking part 32 unlocks the door body 20, with the latch 3211 retracting and disengaging from the first mating part 33, allowing the door body 20 to rotate relative to the frame 10. Specifically, the first mating part 33 is provided with a mating groove 330. The mating groove 330 is opposite to the locking tongue 3211 along the extension and retraction direction of the locking tongue 3211. Referring to Figure 5, when the locking tongue 3211 is not fully retracted into the first locking part 32, the mating groove 330 can avoid the locking tongue 3211 and can also unlock when the door 20 rotates.

[0047] Referring to Figures 7 and 8, in some embodiments of this application, the second lock 40 includes a second locking part 41 and a second mating part 42. The second locking part 41 is movably disposed on the frame 10, and the second mating part 42 is disposed on the door 20. The second locking part 41 has a locked position and an unlocked position. In the locked position, the second locking part 41 stops the second mating part 42; in the unlocked position, the second locking part 41 separates from the second mating part 42. That is, locking and unlocking can be achieved by changing the position of the second locking part 41. When the second locking part 41 stops the second mating part 42, the frame 10 and the door 20 can be relatively fixed. When the second locking part 41 moves away from the second mating part 42, the second locking part 41 releases the second mating part 42, allowing the door 20 to rotate relative to the frame 10. Therefore, the second lock 40 has a simple structure, is easy to construct, and is easy to operate.

[0048] Further, in some embodiments of this application, referring to FIG6, the second locking part 41 includes a bracket 413, a first pedal 411, and a second pedal 412. The bracket 413 is movably connected to the frame 10, and the first pedal 411 and the second pedal 412 are connected to both sides of the bracket 413. The first pedal 411 and the second pedal 412 are adapted to drive the bracket 413 from the locked position to the unlocked position. Specifically, on opposite sides of the door 20 in the opening and closing direction, such as the front-back direction, or the inner and outer sides of the door 20, the user can open the door from the first side to the second side, or from the second side to the first side. Therefore, by setting the first pedal 411 and the second pedal 412, the user can unlock the second lock 40 from either side. Specifically, when the user opens the door, after touching the infrared switch to unlock, he / she can step on the foot pedal of the second lock 40 to allow the door to open and close freely.

[0049] Furthermore, one of the bracket 413 and the frame 10 is provided with a sliding groove, and the other is provided with a limiting pin. The limiting pin can slide in the sliding groove, which can limit the range of motion of the second locking part 41 and improve the stability during movement. The two ends of the sliding groove in the vertical direction respectively define the locking position and the unlocking position, which helps to improve the locking effect.

[0050] In some embodiments of this application, the second locking part 41 further includes a reset member (not shown in the figure), which is adapted to drive the bracket 413 to move from the unlocked position to the locked position. Thus, when the user's pressure on the pedal disappears, the second locking part 41 can automatically reset and remain in the locked position, thereby improving the locking and blocking effect of the safety door 100.

[0051] Referring to Figures 1 and 2, in some embodiments of this application, the frame 10 includes a first connecting portion 11 and a second connecting portion 12. The door 20 is hinged to one of the first connecting portion 11 and the second connecting portion 12 and locked to the other. The connecting portion includes a first crossbar 13, a second crossbar 14, and at least one guardrail 15. The first crossbar 13 and the second crossbar 15 are connected to opposite ends of the guardrail 15. The guardrail 15, connected between the first crossbar 13 and the second crossbar 14, can act as a barrier, separating the opposite sides of the safety door 100 and improving the portability of the frame 10. During assembly, the first crossbar 13 and the second crossbar 14 can abut against the wall, thereby achieving a fixed connection for installing the door, providing strong flexibility. Specifically, the door 20 can be hinged to the first connecting portion 11 and locked to the second connecting portion 12 when closed. Both the first connecting portion 11 and the second connecting portion 12 include a first crossbar 13 located on the upper side and a second crossbar 14 located on the lower side.

[0052] Furthermore, referring to Figure 2, the safety door 100 also includes at least one extension, which is detachably connected to the first crossbar 13 or the second crossbar 14. This extension can be used to extend the horizontal dimension of the railing, improving assembly flexibility. Specifically, when the width of the area where the safety door 100 needs to be installed is greater than the overall width of the safety door 100, or when the interval between areas to be separated by the safety door 100 is large, the horizontal length of the safety door 100 can be extended by adding an extension to the frame 10, and the extension can be fixedly connected to the wall or other areas using fasteners.

[0053] More specifically, multiple extension portions can be provided. According to the embodiments of this application, the safety door 100 includes a first extension portion 61 and a second extension portion 62. One or two extension portions can be selected and installed according to actual size requirements. For example, when the required extension distance is long, the first extension portion 61 can be connected to the first connecting portion 11, and the second extension portion 62 can be connected to the second extension portion 62. This not only extends the size but also improves the symmetry of the safety door 100 and enhances the overall structural consistency.

[0054] Optionally, the safety door 100 also includes a plurality of fixing bolts 70, which are respectively connected to the first crossbar 13 and the second crossbar 14. Thus, the first crossbar 13 and the second crossbar 14 can be fixedly connected to the wall at the installation location of the safety door 100 or to the components used to support the safety door 100 by fixing bolts. This facilitates disassembly and assembly, improves the convenience and flexibility of the safety door 100 assembly, and helps to diversify the application scenarios of the safety door 100, providing convenience for users.

[0055] Furthermore, the door body 20 includes a door frame and multiple guardrails 15, which are located within the door frame. This improves the portability of the door body 20. Additionally, by designing the door body 20 and / or the frame 10 as a fence, it can both separate the opposite sides of the security door 100 and provide visibility and interactivity. Specifically, the security door 100 can be used between the entrance door and the interior to prevent children or pets from leaving the room when the entrance door is open, thus acting as a barrier. Alternatively, the security door 100 can be placed at the stairwell exit to prevent infants or children from falling down the stairs, thereby enhancing safety. At the same time, the security door 100 does not interfere with conversations and interactions taking place on either side of the security door 100, thus possessing high practicality.

[0056] Optionally, the spacing between multiple guardrails 15 can be set according to the application. For example, in families with children, the spacing between two guardrails 15 can be set to a size that makes it less likely for a child's head or limbs to get stuck, thereby further improving safety. In families with pets, the distance between two guardrails 15 can be set to a size that prevents pets of average size from passing through, thereby serving as a barrier.

[0057] In some embodiments of this application, the security door 100 further includes a stop 50, which is rotatably disposed on the frame 10. The stop 50 has a first position and a second position. In the first position, the stop 50 stops the door body 20 along the opening direction. In the second position, the stop 50 locks the door body 20 offset in the opening direction. Specifically, since the door body 20 can open in both directions, i.e., it can open inward or outward, it is flexible in use. Thus, on opposite sides of the door body 20 along the front-back direction, the user can push the door from the first side to the second side, or from the second side to the first side. Due to the flexibility of the door body 20, in order to prevent the door body 20 from swinging uncontrollably relative to the door frame inward or outward or back-and-forth, the stop 50 can be adjusted to the first position when the user only needs to open the door from one side, thereby stopping the door body 20 and preventing the door body 20 from opening over the door frame to the other side. When the user does not need to restrict the opening direction of the door body 20, the stop 50 can be adjusted to the first position.

[0058] More specifically, referring to Figures 2 and 9, the stop portion 50 includes a first stop 51, a second stop 52, and a connecting member 53. The first stop 51 and the second stop 52 are connected by the connecting member 53, which passes through opposite sides of the frame 10, rotatably connecting the first stop 51 and the second stop 52 to the side of the frame 10 near the door 20. In application, the first stop 51 can rotate between 0° and 180° relative to the frame 10. For example, when the stop rotates to 90°, it extends in the left-right direction, thereby stopping the door 20 from extending in the front-back direction. Of course, the stop can also be configured to rotate 360°.

[0059] Referring to Figure 2, in some embodiments of this application, the stop portion 50 is disposed between the first lock 30 and the second lock 40. That is, the stop portion 50 can be disposed in the middle region of the frame 10, which can improve the stopping effect on the door 20. Specifically, when the door 20 is locked, rotating the stop portion 50 to the first position, or stopping the door 20, also helps to improve the stability of the door 20 relative to the frame 10 in the locked state. Especially when both the first stop member 51 and the second stop member 52 stop the door 20, the opposite sides of the door 20 can be limited to the locked position.

[0060] In the description of this application, it should be understood that the terms "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0063] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0065] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A security door wherein, include: Frame, The door body is hinged to the frame. The first lock includes a control unit and a first locking unit. The first locking unit is wirelessly connected to the control unit. The first locking unit is located in one of the door body or the frame body and is used to lock or unlock the other. A second lock is provided on the frame and is adapted to lock or unlock the door.

2. The security door according to claim 1, wherein, The first lock and the second lock are located at opposite ends of the security door along its height; and / or The control unit includes a switch and an infrared transmitter, the switch being connected to the infrared transmitter; the first locking unit includes a locking element and an electromagnetic sensor, the electromagnetic sensor transmitting signals to the infrared transmitter, and the electromagnetic sensor being connected to the locking element and driving the locking element to lock or unlock.

3. The security door of claim 2, wherein, The control unit includes a housing, the infrared transmitter is disposed inside the housing, a portion of the switch is disposed inside the housing and abuts against the infrared transmitter, and a portion extends out of the housing.

4. The security door of claim 3, wherein, The switch includes a contact end and a rod body. The housing is provided with a positioning hole, the rod body passes through the positioning hole, one end of the rod body is connected to the contact end, and the other end of the rod body is provided with a flange, the flange abutting against the housing.

5. The security door of any one of claims 1-4, wherein, The first lock also includes a first mating part, which is located on the door body. The first locking part is located on the frame body. The first locking part includes a bolt, which can extend into the first mating part to lock the door body. The bolt can retract to leave the first mating part.

6. The security door of any one of claims 1-4, wherein, The second lock includes a second locking part and a second mating part. The second locking part is movably disposed on the frame and the second mating part is disposed on the door. The second locking part has a locked position and an unlocked position. In the locked position, the second locking part stops the second mating part. In the unlocked position, the second locking part separates from the second mating part.

7. The security door of claim 6, wherein, The second locking part includes a bracket, a first pedal and a second pedal. The bracket is movably connected to the frame, and the first pedal and the second pedal are connected to both sides of the bracket. The first pedal and the second pedal are adapted to drive the bracket to move from the locked position to the unlocked position.

8. The security door of claim 7, wherein, The second locking part further includes a reset member, which is adapted to drive the bracket to move from the unlocked position to the locked position.

9. The security door of any one of claims 1-8, wherein, It also includes at least one extension, the frame comprising a first connecting portion and a second connecting portion, the door being hinged to one of the first connecting portion and the second connecting portion and locked to the other, the connecting portion comprising a first crossbar, a second crossbar, and at least one guardrail, the first crossbar and the second crossbar being connected to opposite ends of the guardrail, the extension being detachably connected to either the first crossbar or the second crossbar; and / or The door includes a door frame and multiple guardrails, which are located within the door frame.

10. The security door of any one of claims 1-9, wherein, It also includes a stop portion, which is rotatably disposed on the frame. The stop portion has a first position and a second position. In the first position, the stop portion stops the door body in the opening direction. In the second position, the stop portion locks the door body offset in the opening direction; and / or The stop is located between the first lock and the second lock.

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