A burglar-proof door

Abstract

The invention discloses an anti-theft door, comprising a lock core installed on the anti-theft door and a locking device installed on the door frame; a plurality of pressure sensors are arranged in the lock core; the pressure sensor is used to control the power on and power off of the solenoid to realize the connection between the lock latch and the fork of the lock core when the locking device is locked, and the lock core and the lock latch are completely separated after locking, so that the lock latch is still fixed in the lock slot to lock the door after the lock core is damaged by external force, and the anti-theft door cannot be opened; compared with the anti-theft lock in the prior art that destroys the copper lock core or uses tools to perform "top-up opening" on the lock core, the present invention has better anti-theft effect; in addition, after the lock core is damaged, the present invention sends a signal to start the control module through the communication module to control the micro motor to start and reverse, and the rotating shaft rotates in the opposite direction, so that the lock latch is gradually separated from the rotating shaft and leaves the lock slot, so as to realize unlocking, thereby solving the problem that the lock core in the prior art cannot be unlocked from the outside of the door when it is destroyed.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-theft doors, and in particular to an anti-theft door. Background Art

[0002] The existing lock core is generally made of copper, which is soft in nature. The copper lock core can be easily destroyed by an electric drill or concentrated acid. In addition, the existing single-keyhole lock core generally includes two lock cores, and the lock shell is correspondingly provided with two lock holes. The lock core on the side outside the door is provided with a keyhole for unlocking the door outside, and the lock core on the side inside the door is connected to the unlocking handle, and the lock shell is provided with an opening groove between the two lock holes, and an unlocking fork is provided in the opening groove; the unlocker uses a key or a special tool to push all the pins into the top, and with the help of torque and the step surface between the pin holes of the inner and outer lock cores, under the action of the spring force, the inner pins fall back and the outer pins are blocked outside the inner lock core, thereby opening the lock; for the high-end anti-theft pin locks currently on the market, although their structures are not exactly the same, their technical opening methods and tools are also different, but because they are all "top-up opening", their basic principles are the same, and the anti-theft effect is unsatisfactory.

[0003] The utility model patent with the authorization announcement number CN208502454U also discloses a single keyhole lock core that prevents forced unlocking by breaking the lock core, including a lock shell, an opening groove is provided in the middle of the lock shell, and the lock shell is provided with a first lock core hole and a second lock core hole separated on both sides of the opening groove, and the first lock core and the second lock core hole are rotatably provided with a first lock core and a second lock core respectively, and the second lock core is circumferentially fixedly connected with an unlocking fork; by providing a breaking groove between the opening groove and the outer end face of the first lock core, after the lock core is broken at the position of the groove, part of the lock core will cover the unlocking fork to prevent unlocking. The shift fork is exposed to prevent criminals from unlocking the door, which has high security. However, after the lock core is broken, the second lock core is fixedly connected to the lock shell circumferentially and cannot rotate, and the unlocking shift fork is fixedly connected to the second lock core circumferentially and is locked, and cannot rotate relative to the lock shell. Although it can prevent criminals from further unlocking the door, it also causes the dilemma of being unable to unlock the door from the outside. The person inside the door can only control the movable card bead to enter the first locking hole through the operating handle without cooperating with the second locking hole, so that the second lock core can rotate freely relative to the lock shell circumferentially, thereby unlocking the door lock. If there is no one in the door and the lock core is broken, it is extremely inconvenient to unlock the door. Summary of the invention

[0004] In view of the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide an anti-theft door, which controls the connection and separation of the lock bolt and the lock cylinder fork by controlling the power on and off of the solenoid through a pressure sensor, so that the lock bolt is connected to the lock cylinder fork when locked, and the lock cylinder and the lock bolt are completely separated after locking, ensuring that the lock bolt is still fixed in the lock slot to lock the door after the lock cylinder is damaged by external force, and the anti-theft door cannot be opened. Compared with the anti-theft lock in the prior art that destroys the copper lock cylinder or uses tools to perform "top-up opening" on the lock cylinder, the present invention has better anti-theft effect; in addition, after the lock cylinder is damaged, the present invention sends a signal to start the control module through the communication module to control the micro motor to start and reverse, and the shaft rotates in the opposite direction, so that the lock bolt is gradually separated from the shaft and leaves the lock slot, thereby realizing unlocking, solving the problem in the prior art that the lock cylinder is destroyed and the door cannot be unlocked from the outside.

[0005] The present invention is achieved through the following technical solutions.

[0006] A theft-proof door comprises a lock core installed on the anti-theft door and a locking device installed on a door frame; the lock core comprises a lock shell, a first lock core, a second lock core and a shift fork, the lock shell is rotatably connected to the first lock core and the second lock core, and the first lock core and the second lock core are both connected to the shift fork; a plurality of pressure sensors are arranged in the lock core; the pressure sensor is electrically connected to the locking device through a control module, and the locking device is triggered by the pressure generated on the pressure sensor after a key is inserted into the first lock core or the second lock core.

[0007] Furthermore, the first lock core and the second lock core are respectively located at two ends of the lock housing, and a plurality of vertical pin channels are arranged in parallel in the lock housing and the first lock core and the second lock core. The pin channels in the lock housing and the first lock core and the second lock core correspond to each other and are connected one by one.

[0008] Furthermore, a first keyhole and a second keyhole are respectively provided in the first lock core and the second lock core in a direction perpendicular to the pin channel, and the first keyhole and the second keyhole are connected to the pin channels in the first lock core and the second lock core at a certain inclination angle; a sealing pin and an upper pin are respectively provided in each pin channel of the lock shell, the sealing pin is fixed at the upper port of the pin channel of the lock shell, a pressure sensor is installed at the bottom of the sealing pin, a spring is provided between the pressure sensor and the upper pin, the upper end of the spring is fixed on the pressure surface of the pressure sensor, and the lower end of the spring is fixed to the top of the upper pin.

[0009] Furthermore, lower pins are provided in the pin channels in the first lock core and the second lock core, and the bottoms of the lower pins are limited by the inclination angles of the first keyhole and the second keyhole connecting the pin channels, respectively.

[0010] Furthermore, the upper pins and lower pins in each pin channel are of different heights. After the key is inserted into the first keyhole or the second keyhole, each protrusion on the key lifts the bottom of the lower pin to ensure that the top of the lower pin is flush with the top of the pin channel in the first lock core or the second lock core, and the bottom of the upper pin is flush with the bottom of the pin channel in the lock shell. By turning the key, the first lock core or the second lock core can rotate relative to the lock shell.

[0011] Furthermore, the first lock core and the second lock core are connected to the fork through a first connector and a second connector respectively, the first connector and the second connector are connected through an internal key pin, and the first connector and the second connector are respectively provided with a first copper baffle and a second copper baffle on both sides of the fork.

[0012] Furthermore, the first connector and the second connector are fixedly connected to the lower end of the shift fork, and the upper end is rotatably connected to one end of the connecting rod; the other end of the connecting rod is hinged to the push plate, and the upper and lower ends of the push plate are respectively fixedly connected to the first guide rod and the second guide rod, and the other ends of the first guide rod and the second guide rod are slidably connected to the sliding groove in the anti-theft door, and the first return spring and the second return spring are respectively arranged between the sliding groove on the first guide rod and the second guide rod and the push plate.

[0013] Furthermore, a latch is provided on the anti-theft door, and the latch is slidably connected to the anti-theft door; an electromagnet is provided on one side of the lock core of the latch, and the electromagnet is fixedly connected to the latch, a solenoid is installed on the electromagnet, and the solenoid is electrically connected to the control module through a wire; a threaded hole is opened at one end of the latch located on the door frame.

[0014] Furthermore, the locking device includes a micro motor, a driving gear, a driven gear, a rotating shaft, a fixed seat and a baffle; the micro motor is electrically connected to the control module and the micro motor is fixed in a mounting groove in the door frame, and the output shaft of the micro motor is key-connected with the driving gear; the two ends of the rotating shaft are rotatably connected to the fixed seat and the door frame through bearings respectively; the left end of the rotating shaft is connected to the driven gear and then fixed in the mounting groove in the door frame through a bearing seat, and the right end of the rotating shaft is provided with a thread and extends into the lock groove; the driving gear is meshed with the driven gear; the baffle is fixed on the fixed seat and limits the position of the fixed seat in the mounting groove.

[0015] Furthermore, the control module includes a control circuit for controlling the forward and reverse movement of the micro motor and the power on and off of the solenoid, as well as an external communication signal receiving module. The external communication signal can be sent by an external electronic device communication device or a human feature recognition module.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. After the lock is locked, the lock core and the lock latch are completely separated. After the lock core is damaged by external force, the lock latch is still fixed in the lock slot to lock the door, and the anti-theft door cannot be opened. Compared with the anti-theft lock in the prior art that destroys the copper lock core or uses tools to "open the lock core by top-up", the anti-theft effect of the present invention is better.

[0018] 2. When the lock core of the present invention is damaged, a signal is sent through the communication module to start the control module to control the micro motor to start and reverse, and the shaft rotates in the opposite direction, so that the lock bolt is gradually separated from the shaft and leaves the lock slot, thereby achieving unlocking, which solves the problem in the prior art that the lock core cannot be unlocked from the outside when it is destroyed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of an anti-theft door of the present invention;

[0020] Figure 2 It is a structural schematic diagram of a lock core in an anti-theft door of the present invention;

[0021] Figure 3 for Figure 2 Schematic diagram of the cross section along the A axis;

[0022] Figure 4 It is a structural schematic diagram of a shift fork of a lock core in an anti-theft door of the present invention;

[0023] Figure 5 This is a schematic diagram of a state of an anti-theft door of the present invention when a key is inserted and rotated 90° counterclockwise;

[0024] Figure 6 This is a schematic diagram of the lock cylinder returning to its initial state after the key is pulled out after locking;

[0025] Figure 7 The present invention is a control principle block diagram of an anti-theft door.

[0026] In the figure: 1. anti-theft door; 2. lock core; 201. lock shell; 202. first lock core; 203. second lock core; 204. shift fork; 205. pressure sensor; 206. first keyhole; 207. second keyhole; 208. sealing pin; 209. upper pin; 210. spring; 211. lower pin; 212. first connector; 213. second connector; 214. inner key pin; 215. first copper baffle; 216. second copper baffle; 217. connecting rod; 218. push plate; 219. first guide rod; 220. second guide rod; 221. slide groove; 222. first return spring; 223. second return spring; 3. door frame; 401. micro motor; 402. driving gear; 403. driven gear; 404. rotating shaft;

[0027] 405. fixing seat; 406. baffle; 407. bearing; 408. bearing seat; 409. lock slot; 5. latch; 501. electromagnet; 502. solenoid; 503. threaded hole. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0030] Reference Figure 1 and Figure 2 , an anti-theft door, comprising a lock core 2 installed on the anti-theft door 1 and a locking device installed on a door frame 3; the lock core 2 comprises a lock housing 201, a first lock core 202, a second lock core 203 and a shift fork 204, the lock housing 201 is rotatably connected to the first lock core 202 and the second lock core 203, the first lock core 202 and the second lock core 203 are both connected to the shift fork 204 (such as Figure 4 several pressure sensors 205 are arranged in the lock cylinder 2; the pressure sensor 205 is electrically connected to the locking device through the control module, and the locking device is triggered by the pressure generated by the pressure sensor 205 after the key is inserted into the first lock cylinder 202 or the second lock cylinder 203.

[0031] Reference Figure 2 The first lock core 202 and the second lock core 203 are respectively located at the two ends of the lock shell 201, and a plurality of vertical pin channels are arranged in parallel in the lock shell 201 and the first lock core 202 and the second lock core 203. The pin channels in the lock shell 201 and the first lock core 202 and the second lock core 203 correspond to each other one by one and are connected.

[0032] like Figure 2As shown, the first lock core 202 and the second lock core 203 are respectively provided with a first keyhole 206 and a second keyhole 207 in a direction perpendicular to the pin channel, and the first keyhole 206 and the second keyhole 207 are connected with the pin channels in the first lock core 202 and the second lock core 203 at a certain inclination angle; each pin channel of the lock housing 201 is respectively provided with a sealing pin 208 and an upper pin 209, and the sealing pin 208 is fixed at the upper end of the pin channel of the lock housing 201, and the sealing pin 209 is fixed at the upper end of the pin channel of the lock housing 201. A pressure sensor 205 is installed at the bottom of the lock core 8, and a spring 210 is arranged between the pressure sensor 205 and the upper pin 209. The upper end of the spring 210 is fixed to the pressure surface of the pressure sensor 205, and the lower end of the spring 210 is fixed to the top of the upper pin 209; the pin channels in the first lock core 202 and the second lock core 203 are both provided with lower pins 211, and the bottom of the lower pin 211 is respectively connected to the pin channel by the first keyhole 206 and the second keyhole 207 by the inclination limit (such as Figure 3 shown).

[0033] like Figure 2 As shown, the upper pin 209 and the lower pin 211 in each pin channel are of different heights. After the key is inserted into the first keyhole 206 or the second keyhole 207, each protrusion on the key will lift the bottom of the lower pin 211 to ensure that the top of the lower pin 211 is flush with the top of the pin channel in the first lock core 202 or the second lock core 203, and the bottom of the upper pin 209 is flush with the bottom of the pin channel in the lock shell 201. By turning the key, the first lock core 202 or the second lock core 203 can rotate relative to the lock shell 201.

[0034] like Figure 2 As shown, the first lock core 202 and the second lock core 203 are connected to the fork 204 through the first connector 212 and the second connector 213 respectively, and the first connector 212 and the second connector 213 are connected through the inner key pin 214. The first connector 212 and the second connector 213 are respectively provided with a first copper baffle 215 and a second copper baffle 216 on both sides of the fork 204.

[0035] like Figure 1 As shown, the lower end of the shift fork 204 is fixedly connected to the first connector 212 and the second connector 213, and the upper end is rotatably connected to one end of the connecting rod 217; the other end of the connecting rod 217 is hinged to the push plate 218, and the upper and lower ends of the push plate 218 are respectively fixedly connected to the first guide rod 219 and the second guide rod 220, and the other ends of the first guide rod 219 and the second guide rod 220 are slidably connected to the slide groove 221 in the anti-theft door, and the first return spring 222 and the second return spring 223 are respectively arranged between the slide groove 221 on the first guide rod 219 and the second guide rod 220 and the push plate 218.

[0036] like Figure 1 As shown, a latch 5 is also provided on the anti-theft door 1, and the latch 5 is slidably connected to the anti-theft door 1; an electromagnet 501 is provided on one side of the lock core 2 of the latch 5, and the electromagnet 501 is fixedly connected to the latch 5, a solenoid 502 is installed on the electromagnet 501, and the solenoid 502 is electrically connected to the control module through a wire; a threaded hole 503 is opened at one end of the latch 5 located on the door frame 3.

[0037] like Figure 1 As shown, the locking device includes: a micro motor 401, a driving gear 402, a driven gear 403, a rotating shaft 404, a fixed seat 405 and a baffle 406; the micro motor 401 is electrically connected to the control module and the micro motor 401 is fixed in the mounting groove in the door frame, and the output shaft of the micro motor 401 is key-connected with the driving gear 402; the two ends of the rotating shaft 404 are rotatably connected to the fixed seat 405 and the door frame 3 through bearings 407 respectively; the left end of the rotating shaft 404 is connected to the driven gear 403 and then fixed in the mounting groove in the door frame through a bearing seat 408, and the right end of the rotating shaft 404 is provided with a thread and extends into the lock groove 409; the driving gear 402 is meshed with the driven gear 403; the baffle 406 is fixed on the fixed seat 405 and limits the position of the fixed seat 405 in the mounting groove.

[0038] The control module includes a control circuit for controlling the forward and reverse movement of the micro motor 401 and the power on and off of the solenoid 502, and an external communication signal receiving module. The external communication signal can be sent by an external electronic device communication device or a human feature recognition module. The control principle block diagram is shown in FIG. Figure 7 shown.

[0039] The working process of the present invention is as follows: when locking is required, the key is inserted from the first keyhole 206 of the first lock core 202 or the second keyhole 207 of the second lock core 203, and each protrusion on the key lifts the bottom of the lower pin 211 at the corresponding position to ensure that the top of the lower pin 211 is flush with the top of the pin channel in the first lock core 202 or the second lock core 203, and the bottom of the upper pin 209 is flush with the bottom of the pin channel in the lock shell 201. At this time, each pressure sensor 205 located in the lock core 2 is subjected to the pressure transmitted by each spring, and the pressure information sends a signal through the control system to control the micro motor 401 to start , forward rotation, and at the same time control the solenoid 502 to be energized, the electromagnet 501 generates magnetic force and is attracted to the push plate 218; then the key is turned counterclockwise, the first lock core 202 or the second lock core 203 rotates relative to the lock housing 201, driving the shift fork 204 to rotate counterclockwise, pushing the push plate 218 to move the compressed spring to the left through the connecting rod 217, and the electromagnet 501 attracted to the push plate 218 pushes the latch 5 to gradually enter the lock groove 409 in the door frame 3 and gradually approach the rotating shaft 404. The rotating shaft 404 rotates under the drive of the micro motor 401, and its right end is gradually threadedly connected with the threaded hole in the latch 5, and the door is locked (such as Figure 5 When the key is pulled out, the micro motor 401 stops rotating, and the solenoid 502 is powered off, the electromagnet 501 separates from the push plate 218, and the push plate 218 returns to its initial position (as shown) under the reaction force of the first return spring 222 and the second return spring 223. Figure 6 At this time, the lock core 2 and the lock bolt 5 are completely separated, and the lock core 2 cannot be unlocked even if external force damages it.

[0040] When the lock needs to be unlocked, the key is inserted into the first keyhole 206 of the first lock core 202 or the second keyhole 207 of the second lock core 203. Each protrusion on the key pushes up the bottom of the lower pin 211 at the corresponding position to ensure that the top of the lower pin 211 is flush with the top of the pin channel in the first lock core 202 or the second lock core 203, and the bottom of the upper pin 209 is flush with the bottom of the pin channel in the lock housing 201. At this time, the pressure sensors 205 located in the lock core 2 are pressed by the pressure transmitted by the springs. The pressure information sends a signal through the control system to control the micro motor 401 to start and reverse, and at the same time control the solenoid 502 to be energized, the electromagnet 501 generates a magnetic force, and the latch 5 is gradually separated from the rotating shaft 404. After separation, the electromagnet 501 and the push plate 218 are attracted together; then the key is turned counterclockwise, the first lock cylinder 202 or the second lock cylinder 203 rotates relative to the lock housing 201, driving the shift fork 204 to rotate counterclockwise, and the push plate 218 is pulled back to the initial position through the connecting rod 217 to achieve unlocking.

[0041] When the door is locked and the lock core 2 has been damaged, the communication module sends a signal to start the control module to control the micro motor 401 to start and reverse, and the shaft 404 rotates in the opposite direction, so that the latch 5 gradually separates from the shaft 404 and leaves the lock slot 409, thereby unlocking the door. The communication module can be an external electronic device communication device or a human feature (such as fingerprint, face and other information) recognition module.

[0042] When a special tool is used to lift the lower pin, causing the first lock cylinder 202 or the second lock cylinder 203 to rotate relative to the lock housing 201, or an incorrect key is inserted into the first keyhole 206 of the first lock cylinder 202 or the second keyhole 207 of the second lock cylinder 203, the pressure value detected by the pressure sensor 205 does not match the set value (the set value is the pressure value generated when the correct key is inserted), the micro motor 401 will not be started, the latch 5 and the rotating shaft 404 will not be separated, and therefore the lock cannot be opened.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention.

Claims

1. An anti-theft door, comprising a lock core (2) installed on the anti-theft door (1) and a locking device installed on a door frame (3); the lock core (2) comprises a lock housing (201), a first lock core (202), a second lock core (203) and a shift fork (204); the lock housing (201) is rotatably connected to the first lock core (202) and the second lock core (203); the first lock core (202) and the second lock core (203) are both connected to the shift fork (204); characterized in that: A plurality of pressure sensors (205) are arranged in the lock core (2); the pressure sensor (205) is electrically connected to a locking device via a control module, and the locking device is triggered by the pressure generated on the pressure sensor (205) by a key inserted into the first lock core (202) or the second lock core (203); the first lock core (202) and the second lock core (203) are respectively connected to the shift fork (204) via a first connector (212) and a second connector (213); the first connector (212) and the second connector (213) are connected via an inner key pin (214); a first copper stopper (215) and a second copper stopper (216) are respectively arranged on both sides of the shift fork (204) on the first connector (212) and the second connector (213); The first connector (212) and the second connector (213) are fixedly connected to the lower end of the shift fork (204), and the upper ends are rotatably connected to one end of the connecting rod (217); the other end of the connecting rod (217) is hinged to the push plate (218), and the upper and lower ends of the push plate (218) are respectively fixedly connected to the first guide rod (219) and the second guide rod (220); the other ends of the first guide rod (219) and the second guide rod (220) are slidably connected to the slide groove (221) in the anti-theft door, and a first return spring (222) and a second return spring (223) are respectively arranged between the slide groove (221) on the first guide rod (219) and the second guide rod (220) and the push plate (218); The anti-theft door (1) is also provided with a latch (5), and the latch (5) is slidably connected to the anti-theft door (1); an electromagnet (501) is provided on one side of the latch (5) located on the lock core (2), and the electromagnet (501) is fixedly connected to the latch (5); a solenoid (502) is installed on the electromagnet (501), and the solenoid (502) is electrically connected to the control module through a wire; a threaded hole (503) is opened at one end of the latch (5) located on the door frame (3); The locking device comprises a micro motor (401), a driving gear (402), a driven gear (403), a rotating shaft (404), a fixing seat (405) and a baffle (406); the micro motor (401) is electrically connected to a control module and the micro motor (401) is fixed in a mounting groove in a door frame, and an output shaft of the micro motor (401) is key-connected to the driving gear (402); two ends of the rotating shaft (404) are connected to the fixing seat via bearings (407) and (405) and the door frame (3) are rotatably connected; the left end of the rotating shaft (404) is connected to the driven gear (403) and is fixed in the installation groove in the door frame through the bearing seat (408); the right end of the rotating shaft (404) is provided with a thread and extends into the lock groove (409); the driving gear (402) is meshed with the driven gear (403); the baffle (406) is fixed on the fixing seat (405) and limits the position of the fixing seat (405) in the installation groove.

2. The anti-theft door according to claim 1, characterized in that: The first lock core (202) and the second lock core (203) are respectively located at two ends of the lock housing (201); a plurality of vertical pin channels are arranged in parallel in the lock housing (201) and the first lock core (202) and the second lock core (203); the pin channels in the lock housing (201) and the first lock core (202) and the second lock core (203) correspond to each other one by one and are connected.

3. The anti-theft door according to claim 2, characterized in that: A first keyhole (206) and a second keyhole (207) are respectively arranged in the first lock core (202) and the second lock core (203) in a direction perpendicular to the pin channel; the first keyhole (206) and the second keyhole (207) are connected to the pin channels in the first lock core (202) and the second lock core (203) at a certain inclination angle; and a sealing pin (208) and an upper pin (209) are respectively arranged in each pin channel of the lock housing (201). 9), the sealing pin (208) is fixed at the upper end of the pin channel of the lock housing (201), a pressure sensor (205) is installed at the bottom of the sealing pin (208), a spring (210) is arranged between the pressure sensor (205) and the upper pin (209), the upper end of the spring (210) is fixed on the pressure surface of the pressure sensor (205), and the lower end of the spring (210) is fixed on the top of the upper pin (209).

4. The anti-theft door according to claim 3, characterized in that: A lower pin (211) is provided in the pin passages in the first lock core (202) and the second lock core (203), and the bottom of the lower pin (211) is limited by the inclination angle of the first keyhole (206) and the second keyhole (207) connected to the pin passages.

5. The anti-theft door according to claim 3 or 4, characterized in that: The upper pin (209) and the lower pin (211) in each pin channel are at different heights. After the key is inserted into the first keyhole (206) or the second keyhole (207), each protrusion on the key lifts up the bottom of the lower pin (211) to ensure that the top of the lower pin (211) is flush with the top of the pin channel in the first lock core (202) or the second lock core (203), and the bottom of the upper pin (209) is flush with the bottom of the pin channel in the lock housing (201). By turning the key, the first lock core (202) or the second lock core (203) can rotate relative to the lock housing (201).

6. The anti-theft door according to claim 1, characterized in that: The control module comprises a control circuit for controlling the forward and reverse movement of the micro motor (401) and the power on and off of the solenoid (502), and an external communication signal receiving module, wherein the external communication signal is sent by an external electronic device communication device or a human feature recognition module.

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