A security door lock

Abstract

The application discloses a safety door lock, which comprises a pull rod assembly, a handle lock and a push rod lock. The pull rod assembly is located at the side of the door body and is used for cooperating with a lock hole on a door frame to realize locking. The handle lock comprises a handle and a first unlocking assembly. The first unlocking assembly is connected with the pull rod assembly. The handle is located outside the door body and is connected with the first unlocking assembly through the door body, so that the first unlocking assembly is moved when the handle is rotated, and the pull rod assembly is moved away from the lock hole. The push rod lock is located at the track side and comprises a push rod and a second unlocking assembly. The second unlocking assembly is connected with the pull rod assembly. The push rod is connected with the second unlocking assembly, so that the second unlocking assembly is moved when the push rod is rotated, and the pull rod assembly is moved away from the lock hole. The safety door lock can realize the unlocking linkage of the platform side and the track side in an emergency through the cooperation of the handle lock, the push rod lock and the pull rod assembly, and the use of the platform side and the track side in an emergency is met.

Description

Technical Field

[0001] This invention relates to the field of door lock technology, and more particularly to a security door lock. Background Technology

[0002] Platform screen doors are commonly used in subway, intercity, and train platforms to separate the public platform area from the track and equipment areas, preventing passengers from entering dangerous areas without authorization. To facilitate crowd evacuation in emergencies such as fires, floods, or train malfunctions, and to allow staff access to the track area for equipment maintenance, end doors are typically installed at both ends of one side of the platform screen door. These end doors are locked and unlocked using locks, making them emergency escape doors for crowd evacuation in emergencies and preventing major safety accidents. Currently, in the rail transit sector, escape doors are usually unlocked by staff using a special key on the platform side or by a push bar on the track side. However, in emergencies involving signal connection problems between the train and the control center, there may be situations where no one unlocks the doors on the platform side, posing a safety hazard. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a safety door lock that can be unlocked from both the platform side and the track side in an emergency. That is, on the platform side, in addition to the access control system, it can be unlocked by rotating the handle. In the event of a malfunction of the access control system, the handle can also be locked with a key to prevent unauthorized personnel from unlocking it. Under any circumstances, it can be unlocked by using a push rod on the track side. This provides a safer, more reliable, and more flexible safety door lock for the rail transit field.

[0004] To solve the above-mentioned technical problems, the present invention provides a security door lock, applied to a door, comprising:

[0005] A pull rod assembly, located on the side of the door, is used to engage with a lock hole on the door frame to achieve locking;

[0006] A handle lock includes a handle and a first unlocking component, the first unlocking component being connected to the lever assembly. The handle is located outside the door and passes through the door to be connected to the first unlocking component, so that when the handle is turned, it drives the first unlocking component to move, causing the lever assembly to move away from the keyhole.

[0007] A push-rod lock, located on the side of the track, includes a push rod and a second unlocking component. The second unlocking component is connected to the pull rod component. The push rod is connected to the second unlocking component so that when the push rod rotates, it drives the second unlocking component to move, causing the pull rod component to move away from the lock hole.

[0008] The further technical solution is as follows: the first unlocking component includes a first connecting shaft, a handle link, a handle fork, and a handle stop, wherein the handle stop is fixed on the pull rod assembly, the handle is connected to the first connecting shaft, the handle link is sleeved on the first connecting shaft, one end of the handle link is connected to the handle fork, and the handle fork is located on one side of the handle stop and abuts against the handle stop, so as to move up / down when the handle is rotated, thereby driving the pull rod assembly to move away from the lock hole through the handle stop.

[0009] The further technical solution is as follows: the handle lock also includes a second housing and a first locking component. The second housing is installed on the door panel, and one side passes through the door panel and is located on the track side. The first locking component includes a lock piece, two permanent magnets, a lock cylinder, and a lock tongue. The first locking component and the first unlocking component are both located on the side of the second housing located on the track side. A second connecting shaft is also fixed on the second housing, and the second connecting shaft is located above the lock cylinder and below the first connecting shaft. The lock piece is sleeved on the second connecting shaft, and a stop is provided on one side of the lock piece. The two permanent magnets are respectively fixed on both sides of the second connecting shaft and can be attracted to the lock piece. The lock tongue is connected to the lock cylinder so that when the lock tongue rotates, one side of the upper lock piece is attracted to a permanent magnet, thereby causing the stop to approach the handle linkage to block the rotation of the handle linkage or move away from the handle linkage.

[0010] The further technical solution is as follows: the lock includes a sleeve rod, a first lock rod and a second lock rod formed by bending outward and downward from both sides of the sleeve rod, the sleeve rod is sleeved on the second connecting shaft, the first lock rod and the second lock rod are respectively provided with magnets for attracting the permanent magnet, the stop is formed at the end of the first lock rod, and a notch for the lock tongue to be engaged is formed between the lower ends of the first lock rod, the sleeve rod and the second lock rod.

[0011] The further technical solution is as follows: the handle is embedded in the second housing and installed on one side of the door panel. The handle connecting rod extends downward on the side near the stop to form a hook. The stop is wedge-shaped so as to cooperate with the hook to block the rotation of the handle connecting rod when the first locking rod is attracted to the permanent magnet. A reset torsion spring is also sleeved on the first connecting shaft. One end of the reset torsion spring is connected to the handle connecting rod, and the other end is fixed to the second housing.

[0012] The further technical solution is as follows: the second unlocking component includes a fixed base, a third connecting shaft, a lever, and a second stop. The second stop is fixed to the pull rod assembly. The third connecting shaft is connected to the side of the door body through the fixed base. One end of the lever is sleeved on the third connecting shaft, and the other end forms a locking post. The second stop has a locking groove that engages with the locking post. The third connecting shaft is also connected to the push rod so that it can rotate under the action of the push rod, thereby driving the pull rod assembly to move away from the lock hole through the lever and the second stop.

[0013] The further technical solution is as follows: the second unlocking component also includes a connecting block and two reset springs. A through slot is opened in the middle of the second stop block. The connecting block is fixed on the pull rod assembly and located in the slot. The two reset springs are sleeved on the pull rod assembly and are respectively located on both sides of the connecting block. One end of the reset spring is connected to the connecting block, and the other end is fixed on the pull rod assembly.

[0014] The further technical solution is as follows: the second stop includes a block and a second connecting rod extending outward from one side of the block, the block is fixed on the pull rod assembly, and the slot is formed at the end of the second connecting rod.

[0015] The further technical solution is as follows: A connecting frame is provided on the side of the door body. The upper and lower ends of the pull rod assembly are locked in conjunction with the lock hole. The pull rod assembly includes an upper pull rod, a rotating connector and a lower pull rod located below the upper pull rod, provided on the connecting frame. The rotating connector is provided on the connecting frame through a fourth connecting shaft and can rotate around the fourth connecting shaft. Hooks are provided at both ends of the rotating connector. A first connecting fork and a second connecting fork are respectively provided at the bottom end of the upper pull rod and the top end of the lower pull rod. The first connecting fork and the second connecting fork are respectively hooked on a hook. The first unlocking component and the second unlocking component are both connected to the lower pull rod / upper pull rod to drive the lower pull rod to move upward, thereby driving the upper pull rod to move downward / drive the upper pull rod to move downward, thereby driving the lower pull rod to move upward, so that the bottom end of the lower pull rod and the top end of the upper pull rod disengage from the lock hole.

[0016] The further technical solution is as follows: a connecting frame is provided on the side of the door body, the pull rod assembly includes a pull rod disposed on the connecting frame, the top / bottom end of the pull rod cooperates with a lock hole to achieve locking, the first unlocking component and the second unlocking component are both connected to the pull rod so as to drive the pull rod to move away from the lock hole when the handle is turned / the push rod is turned.

[0017] The beneficial technical effects of this invention are as follows: Compared with the prior art, the safety door lock of this invention is equipped with a handle lock and a push rod lock. Both the handle lock and the push rod lock are connected to a pull rod assembly for locking by engaging with the lock hole on the door frame. When the handle located on the outside of the door body, i.e., the platform side, is rotated, the first unlocking component can drive the pull rod assembly to move away from the lock hole. Alternatively, when the push rod located on the track side is rotated, the second unlocking component can drive the pull rod assembly to move away from the lock hole, thereby unlocking. It can be seen that the safety door lock of this invention is equipped with a handle lock that can be unlocked by rotating the handle on the platform side and a push rod lock that can be unlocked on the track side. Through the cooperation of the handle lock, the push rod lock, and the pull rod assembly, the unlocking linkage of the platform side and the track side can be realized in an emergency, which can meet the needs of the platform side and the track side in an emergency and has a wider range of applicable scenarios. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a specific embodiment of the security door lock of the present invention;

[0019] Figure 2 yes Figure 1 A side view of the security door lock shown;

[0020] Figure 3 yes Figure 2 An enlarged schematic diagram of part A of the security door lock shown;

[0021] Figure 4 yes Figure 1 Rear view of the security door lock shown;

[0022] Figure 5 yes Figure 1 A three-dimensional structural diagram of the handle lock in the security door lock shown;

[0023] Figure 6 yes Figure 5 A front view of the handle lock shown;

[0024] Figure 7 yes Figure 5 The diagram shows a rear view of the handle lock.

[0025] Figure 8 This is a schematic diagram of the handle lock of the present invention in the unlocked state;

[0026] Figure 9 This is a schematic diagram of the structure of the safety door lock of the present invention, showing the cooperation between the pull-down rod, the handle stop, and the second unlocking component;

[0027] Figure 10 yes Figure 9 A top view of the structure shown;

[0028] Figure 11This is a schematic diagram of the upper pull rod in the safety door lock of the present invention;

[0029] Figure 12 yes Figure 11 A top view of the structure shown. Detailed Implementation

[0030] To better understand the technical content of this invention, the technical solution of this invention will be further introduced and explained below with reference to the schematic diagram, but it is not limited thereto.

[0031] Reference Figures 1 to 12 , Figures 1 to 12 A specific embodiment of the security door lock of the present invention is shown. The security door lock of the present invention is applied to a door. In the embodiment shown in the accompanying drawings, the security door lock includes a pull rod assembly, a handle lock 20, and a push rod lock 30. The pull rod assembly is located on the side of the door and is used to engage with a keyhole on the door frame to achieve locking. The handle lock 20 includes a handle 21 and a first unlocking component 22. The first unlocking component 22 is connected to the pull rod assembly. The handle 21 is located on the outside of the door and passes through the door to connect with the first unlocking component 22, so that when the handle 21 is rotated, it drives the first unlocking component 22 to move, causing the pull rod assembly to move away from the keyhole. The push rod lock 30 is located on the track side and includes a push rod 31 and a second unlocking component 32. The second unlocking component 32 is connected to the pull rod assembly. The push rod 31 is connected to the second unlocking component 32, so that when the push rod 31 is rotated, it drives the second unlocking component 32 to move, causing the pull rod assembly to move away from the keyhole. Based on the above design, both the handle lock 20 and the push rod lock 30 are connected to a pull rod assembly for locking by engaging with the lock hole on the door frame. When the handle 21 located on the outside of the door, i.e. the platform side, is rotated, the first unlocking component 22 can drive the pull rod assembly to move away from the lock hole. Alternatively, when the push rod 31 located on the track side is rotated, the second unlocking component 32 can drive the pull rod assembly to move away from the lock hole, thereby unlocking. In other words, the combination of the handle lock 20, the push rod lock 30, and the pull rod assembly, which can be unlocked by rotating the handle 21, can realize the unlocking linkage between the platform side and the track side in an emergency, which can meet the needs of the platform side and the track side in an emergency.

[0032] Specifically, in some embodiments, a connecting frame 17 is provided on the side of the door body. The upper and lower ends of the pull rod assembly both engage with lock holes for locking. The pull rod assembly includes an upper pull rod 11 mounted on the connecting frame 17, a rotating connector 13 located below the upper pull rod 11, and a lower pull rod 12. Both the upper pull rod 11 and the lower pull rod 12 can be mounted on the connecting frame 17 via mounting bases 112. The rotating connector 13 is mounted on the connecting frame 17 via a fourth connecting shaft 14. It can rotate around the fourth connecting shaft 14. In this embodiment, the rotating connector 13 is roughly disc-shaped. Hooks 131 are provided at both symmetrical ends of the rotating connector 13. A first connecting fork 15 and a second connecting fork 16 are respectively provided at the bottom end of the upper pull rod 11 and the top end of the lower pull rod 12. The first connecting fork 15 and the second connecting fork 16 are respectively hooked onto a hook 131. A first locking member 111 and a second locking member 123 are respectively connected to the top end of the upper pull rod 11 and the bottom end of the lower pull rod 12. Figures 1 to 4 As shown, in this embodiment, both the first unlocking component 22 and the second unlocking component 32 are connected to the pull-down rod 12, so as to drive the pull-down rod 12 to move upward, thereby driving the pull-up rod 11 to move downward, causing the second locking member 123 and the first locking member 111 to disengage from the lock hole, thus unlocking; or, by driving the pull-down rod 12 to move downward, thereby driving the pull-up rod 11 to move upward, causing the second locking member 123 and the first locking member 111 to enter the lock hole, thus locking the door. Understandably, in some other embodiments, both the first unlocking component 22 and the second unlocking component 32 can be connected to the pull-up rod 11, so that under the action of the handle 21 and the push rod 31, the pull-up rod 11 can move downward, thereby driving the pull-down rod 12 to move upward, thus unlocking; or, by driving the pull-up rod 11 to move upward, thereby driving the pull-down rod 12 to move downward, causing the second locking member 123 and the first locking member 111 to enter the lock hole.

[0033] Continue to refer to Figure 1 , Figures 5 to 7In some embodiments, the first unlocking component 22 includes a first connecting shaft 221, a handle link 222, a handle fork 223, and a handle stop 224. The handle stop 224 is fixed to the pull rod 12. The handle 21 is connected to the first connecting shaft 221. The handle link 222 is sleeved on the first connecting shaft 221. One end of the handle link 222 is connected to the handle fork 223 by a fastener such as a screw or stud. The handle fork 223 is located on one side of the handle stop 224 and abuts against the handle stop 224 so as to move up / down when the handle 21 is rotated, thereby driving the pull rod assembly to move away from the lock hole through the handle stop 224. Specifically, in this embodiment, the handle fork 223 is located below and abuts against the handle stop 224, so that it moves upward when the handle 21 is rotated, thereby causing the handle stop 224 above the handle fork 223 to move upward, thereby driving the pull rod 12 to move upward and disengage from the lock hole. At the same time, the upper pull rod 11 can be moved downward and disengaged from the lock hole through the rotating connector 13, thus unlocking the device.

[0034] Furthermore, in this embodiment, the handle lock 20 further includes a second housing 25 and a first locking assembly. The second housing 25 is mounted on the door panel, with one side passing through the door panel and located on the track side. The first locking assembly includes a lock element 231, two permanent magnets 232, a lock cylinder 233, and a lock tongue 234. Both the first locking assembly and the first unlocking assembly 22 are located on the track side of the second housing 25. A lock cylinder seat 236 is provided on the lower right side of the second housing 25, and the lock cylinder 233 is located on the lock cylinder seat 326. A second connecting shaft is also fixed on the second housing 25. The second connecting shaft is located above the lock cylinder 233 and below the first connecting shaft 221. The lock member 231 is sleeved on the second connecting shaft, and a stop 2311 is provided on one side of the lock member 231. The two permanent magnets 232 are respectively fixed on both sides of the second connecting shaft and can be attracted to the lock member 231. The lock tongue 234 is connected to the lock cylinder 233 so that when the lock tongue 234 rotates, one side of the upper lock member 231 is attracted to a permanent magnet 232, thereby causing the stop 2311 to move closer to the handle link 222 to block the rotation of the handle link 222 or move away from the handle link 222. Based on the above design, when the access control system is damaged or absent, station staff can lock handle 21 with a key to prevent it from turning, thus avoiding passengers accidentally opening the end door. Specifically, by turning the latch 234 with the key, the latch 234 pushes one side of the lock piece 231, which has a stop 2311, closer to the permanent magnet until that side engages with the nearby permanent magnet 232. The stop 2311 then blocks the rotation of the handle linkage 222, locking handle 21. Continuing to turn the latch 234 back to its initial position allows the key to be removed. At this point, non-station staff cannot open the platform end door from the platform side (e.g., ...). Figure 5 and Figure 6 (As shown); when the power is off and handle 21 is locked, to unlock it, insert the key and rotate it in the opposite direction. As the latch 234 rotates, it pushes the other side of the lock 231 upward, engaging with another permanent magnet 232. The stop 2311 moves away from the handle linkage 222. At this time, station staff on the platform side can turn handle 21 to open the end door (as shown); Figure 8 (As shown).

[0035] Specifically, in some embodiments, the locking member 231 includes a sleeve 2313, a first locking rod 2314 and a second locking rod 2315 formed by bending outward and downward from both sides of the sleeve 2313. The sleeve 2313 is sleeved on the second connecting shaft. The first locking rod 2314 and the second locking rod 2315 are respectively provided with magnets for attracting the permanent magnet 232. The stop 2311 is formed at the end of the first locking rod 2314, and a notch 2312 for the locking tongue 234 to be engaged is formed between the lower ends of the first locking rod 2314, the sleeve 2313 and the second locking rod 2315. Preferably, the handle 21 is embedded in the second housing 25 and installed on one side of the door panel. The handle connecting rod 222 extends downward near the stop 2311 to form a hook 2221. The stop 2311 is wedge-shaped so that it cooperates with the hook 2221 to block the rotation of the handle connecting rod 222 when the first locking rod 2314 is attracted to the permanent magnet 232. A reset torsion spring 26 is also sleeved on the first connecting shaft 221. One end of the reset torsion spring 26 is connected to the handle connecting rod 222, and the other end is fixed to the second housing 25. Based on the above design, when the handle 21 is locked, the key can be inserted and rotated to a certain angle to engage with the notch 2312. During the rotation, the locking tongue 234 pushes the first locking rod 2314 upward, close to the permanent magnet 232, so that the magnet on it is attracted to the permanent magnet 232. The wedge-shaped stop 2311 abuts against the hook 2221 of the handle connecting rod 222, blocking the rotation of the handle connecting rod 222, and the handle 21 is locked. When the key is inserted and rotated in the opposite direction to a certain angle, it can engage with the notch 2312. During the rotation, the locking tongue 234 pushes the second locking rod 2315 upward, attracting to another permanent magnet 232, so that the stop 2311 moves downward and away from the hook 2221. At this time, the station staff on the platform side can turn the handle 21 to open the end door. It is also understandable that the embedded handle 21 can prevent passengers from climbing to the track side with the handle 21, thus avoiding safety hazards. When the door needs to be opened, the operation is also convenient for the station staff.

[0036] Continue to refer to Figure 1 , Figure 3 , Figure 9 and Figure 10In the embodiment shown in the accompanying drawings, the second unlocking component 32 includes a fixed base 321, a third connecting shaft 322, a lever 323, and a second stop 324. The second stop 324 is fixed to the pull-down rod 12. Preferably, in this embodiment, the fixed base 321 includes a seat body 3211 and a connecting body 3212. The seat body 3211 can be fixed to the connecting frame 17. The connecting body 3212 is mounted on the seat body 3211 and located on one side of the pull-down rod 12. The third connecting shaft 322 passes through the connecting body 3212 and is connected to the pull-down rod 12. On lever 12, one end of the lever 323 is sleeved on the third connecting shaft 322, and the other end forms a locking post. The second stop block 324 forms a locking groove 3241 that engages with the locking post. The third connecting shaft 322 also has a slot 3221. The push rod 31 is inserted into the slot 3221. The third connecting shaft 322 rotates under the action of the push rod 31, thereby driving the pull rod 12 to move away from the lock hole through the lever 323 and the second stop block 324, thereby driving the pull rod 11 to move away from the lock hole as well.

[0037] Specifically, in this embodiment, the second unlocking component 32 further includes a connecting block 326 and two return springs 325. The second stop block 324 includes a block body 3243 and a second connecting rod 3244 extending outward from one side of the block body 3243. The block body 3243 is fixed to the pull-down rod 12. The slot 3241 is formed at the end of the second connecting rod 3244, and a through slot 3242 is opened in the middle of the block body 3243. The connecting block 326 is fixed to the pull-down rod 12 and located in the slot 3242. The two return springs 325 are sleeved on the pull-down rod 12 and are respectively located on both sides of the connecting block 326. One end of the return spring 325 is connected to the connecting block 326, and the other end is fixed to the pull-down rod 12. Based on the above design, the second stop block 324 can return to its original position under the action of the return springs 325.

[0038] When the security door lock of the present invention is in use, the second housing 25 can be embedded in the door panel of the end door, and the handle 21 is embedded in the surface of the second housing 25. When the end door is equipped with an access control device, on the platform side, station staff can rotate the handle 21 by swiping their access control card, which will drive the first connecting shaft 221 to rotate, thereby driving the end of the handle connecting rod 222 connected to the handle fork 223 to move upward, thereby driving the handle fork 223 to move upward, pushing the handle stop 224 to move upward, causing the pull rod 12 to move upward. Through the cooperation of the rotating connector 13 and the first connecting fork 15 and the second connecting fork 16, the upper pull rod 11 is driven downward, thereby causing both the upper pull rod 11 and the lower pull rod 12 to disengage from the lock hole, realizing unlocking and opening the end door. At this time, the handle 21 of the security door lock is in the unlocked state. Since one end of the return torsion spring 26 is connected to the second housing 25 and the other end is connected to the handle linkage 222, the handle 21, after being rotated, can be reset by the return torsion spring 26 after being freed from external force. When the access control system is damaged or there is no access control system, station staff can lock the handle 21 with a key to prevent it from rotating and to prevent passengers from accidentally opening the end door. That is, by turning the lock tongue 234 with the key, when it is turned to a certain angle, the lock tongue 234 can be engaged with the notch 2312. During the rotation, the lock tongue 234 can push the first lock rod 2314 upward and close to the permanent magnet 232, so that the magnet on it is attracted to the permanent magnet 232. The wedge-shaped stop 2311 abuts against the hook 2221 of the handle linkage 222, blocking the rotation of the handle linkage 222, and the handle 21 is locked. Continue to turn the lock tongue 234 to the initial position (e.g., Figure 6 (As shown), the key can be removed, and non-station personnel cannot open the platform end door from the platform side; however, when the power is off and the handle 21 is locked, to unlock it, insert the key and rotate it in the opposite direction. When rotated to a certain angle, the locking tongue 234 can engage with the notch 2312. During the rotation, the locking tongue 234 pushes the second locking rod 2315 upward, attracting it to another permanent magnet 232, thereby causing the stop 2311 to move downward and away from the hook body 2221 (as shown). Figure 8 As shown in the figure, at this time, the station staff on the platform side can turn handle 21 to open the end door.

[0039] On the track side, in any emergency, the push rod 31 can be rotated by external force. The push rod 31 drives the third connecting shaft 322 to rotate, thereby causing the lever 323 sleeved on the third connecting shaft 322 to rotate. Through the cooperation of the locking pin of the lever 323 and the locking groove 3241 of the second stop 324, the second stop 324 is moved upward, causing the pull rod 12 to move upward. Through the cooperation of the rotating connector 13 and the first connecting fork 15 and the second connecting fork 16, the upper pull rod 11 is moved downward, thereby causing the upper pull rod 11 and the pull rod 12 to disengage from the lock hole, thereby unlocking and opening the end door. At this time, the handle 21 of the safety door lock is in the unlocked state. Since there is a return spring 325 connecting the connecting block 326 of the second stop 324 and the pull rod 12, the pull rod 12 can return to its original position under the spring force of the return spring 325.

[0040] Understandably, in some other embodiments, the lever assembly may consist of only one lever, the top / bottom of which engages with a lock hole to achieve locking. The first unlocking component and the second unlocking component are both connected to the lever to move the lever away from the lock hole when the handle is turned / the push rod is turned. That is, locking and unlocking are achieved by a single lever engaging with the lock hole at its top or bottom.

[0041] In summary, the safety door lock of the present invention is equipped with a handle lock that can be unlocked on the platform side and a push rod lock that can be unlocked on the track side. Through the cooperation of the handle lock, the push rod lock and the pull rod assembly, the unlocking linkage between the platform side and the track side can be realized in an emergency. Thus, one lock can meet the needs of both the platform side and the track side in an emergency, and has a wider range of applicable scenarios.

[0042] The above preferred embodiments should be regarded as illustrative examples of the implementation of the present invention. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present invention should be considered within the scope of protection of this patent.

Claims

1. A security door lock, applied to a door, characterized in that, Including: A pull rod assembly, located on the side of the door, is used to engage with a lock hole on the door frame to achieve locking; A handle lock includes a handle, a first unlocking component, a second housing, and a first locking component. The first unlocking component is connected to the lever assembly. The handle is located outside the door and passes through the door to connect with the first unlocking component, so that when the handle is turned, it drives the first unlocking component to move, causing the lever assembly to move away from the keyhole. The first unlocking component includes a first connecting shaft, a handle linkage, a handle fork, and a handle stop. The handle stop is fixed to the lever assembly. The handle is connected to the first connecting shaft. The handle linkage is sleeved on the first connecting shaft. One end of the handle linkage is connected to the handle fork, and the handle fork is located on one side of the handle stop and abuts against the handle stop, so that it moves upward / downward when the handle is turned, thereby driving the lever assembly away from the keyhole via the handle stop. The second housing is mounted on the door panel and passes through the door panel on one side, located on the track side. The first locking assembly includes a lock, two permanent magnets, a lock cylinder, and a bolt. The first locking assembly and the first unlocking assembly are both located on the side of the second housing located on the track side. A second connecting shaft is also fixed on the second housing, and the second connecting shaft is located above the lock cylinder and below the first connecting shaft. The lock is sleeved on the second connecting shaft, and a stop is provided on one side of the lock. The two permanent magnets are respectively fixed on both sides of the second connecting shaft and can be attracted to the lock. The bolt is connected to the lock cylinder so that when the bolt rotates, one side of the upper lock is attracted to a permanent magnet, thereby causing the stop to approach the handle linkage to block the rotation of the handle linkage or move away from the handle linkage. A push-rod lock, located on the side of the track, includes a push rod and a second unlocking component. The second unlocking component is connected to the pull rod component. The push rod is connected to the second unlocking component so that when the push rod rotates, it drives the second unlocking component to move, causing the pull rod component to move away from the lock hole.

2. The security door lock as described in claim 1, characterized in that, The lock includes a sleeve, a first lock rod and a second lock rod formed by bending outward and downward from both sides of the sleeve. The sleeve is sleeved on the second connecting shaft. The first lock rod and the second lock rod are respectively provided with magnets for attracting the permanent magnet. The stop is formed at the end of the first lock rod, and a notch for the lock tongue to be engaged is formed between the lower ends of the first lock rod, the sleeve, and the second lock rod.

3. The security door lock as described in claim 2, characterized in that, The handle is embedded in the second housing and installed on one side of the door panel. The handle link extends downward near the stop to form a hook. The stop is wedge-shaped so that it cooperates with the hook to block the rotation of the handle link when the first locking rod is attracted to the permanent magnet. A reset torsion spring is also sleeved on the first connecting shaft. One end of the reset torsion spring is connected to the handle link, and the other end is fixed to the second housing.

4. The security door lock as described in claim 1, characterized in that, The second unlocking component includes a fixed base, a third connecting shaft, a lever, and a second stop. The second stop is fixed to the pull rod assembly. The third connecting shaft is connected to the side of the door body through the fixed base. One end of the lever is sleeved on the third connecting shaft, and the other end forms a locking post. The second stop has a locking groove that engages with the locking post. The third connecting shaft is also connected to the push rod so that it can rotate under the action of the push rod, thereby driving the pull rod assembly to move away from the lock hole through the lever and the second stop.

5. The security door lock as described in claim 4, characterized in that, The second unlocking component also includes a connecting block and two reset springs. A through slot is opened in the middle of the second stop block. The connecting block is fixed to the pull rod assembly and located in the slot. The two reset springs are sleeved on the pull rod assembly and are located on both sides of the connecting block. One end of the reset spring is connected to the connecting block, and the other end is fixed to the pull rod assembly.

6. The security door lock as described in claim 4, characterized in that, The second stop includes a block and a second connecting rod extending outward from one side of the block. The block is fixed to the pull rod assembly, and the slot is formed at the end of the second connecting rod.

7. The security door lock as described in claim 1, characterized in that, A connecting frame is provided on the side of the door. The upper and lower ends of the pull rod assembly are engaged with the lock hole to achieve locking. The pull rod assembly includes an upper pull rod, a rotating connector, and a lower pull rod located below the upper pull rod, all mounted on the connecting frame. The rotating connector is mounted on the connecting frame via a fourth connecting shaft and can rotate around the fourth connecting shaft. Hooks are provided at both ends of the rotating connector. A first connecting fork and a second connecting fork are respectively provided at the bottom end of the upper pull rod and the top end of the lower pull rod. The first and second connecting forks are respectively hooked onto a hook. The first and second unlocking components are both connected to the lower pull rod / upper pull rod to drive the lower pull rod upward, thereby driving the upper pull rod downward, or vice versa, so that the bottom end of the lower pull rod and the top end of the upper pull rod disengage from the lock hole.

8. The security door lock as described in claim 1, characterized in that, A connecting frame is provided on the side of the door body. The pull rod assembly includes a pull rod disposed on the connecting frame. The top / bottom end of the pull rod cooperates with a lock hole to achieve locking. The first unlocking component and the second unlocking component are both connected to the pull rod so that when the handle is turned / the push rod is turned, the pull rod is driven to move away from the lock hole.

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