Escape door lock mechanism

Abstract

The application provides an escape door lock mechanism, which comprises a main lock body, a first sub-lock body, a first lock seat, a second sub-lock body, a second lock seat and a handle. The main lock body is installed on the escape door. The first sub-lock body is installed on one end of the escape door. The first lock seat is installed on a door frame matched with the escape door. The first sub-lock body is matched with the first lock seat to lock the escape door. The second sub-lock body is installed on the other end of the escape door. The second lock seat is installed on the door frame of the escape door. The second sub-lock body is matched with the second lock seat to lock the escape door. The handle is rotatably installed on the main lock body. The main lock body comprises a lock shell, an electromagnetic assembly and a transmission assembly. The electromagnetic assembly and the transmission assembly are respectively installed in the lock shell. The first sub-lock body and the second sub-lock body are respectively connected with the transmission assembly. The electromagnetic assembly is used for driving the transmission assembly to be matched with the handle, so that the first sub-lock body and the second sub-lock body are driven to be separated from the corresponding first lock seat and second lock seat to be unlocked when the handle is rotated. The escape door lock mechanism can be unlocked by electric control, the unlocking process is simple and fast, and the safety performance is high.

Description

Technical Field

[0001] This invention relates to the field of rail transit safety equipment technology, and in particular to an escape door lock mechanism. Background Technology

[0002] Subways, as a fast public transportation system in modern metropolises, are widely used in countries around the world. As a public transportation system, safety is the most important aspect. Emergency exits are passenger evacuation routes in the event of a fire or malfunction in a train tunnel, and also serve as passageways for station personnel to enter and exit tunnels.

[0003] Under normal train operation, there is a risk that the escape doors may be opened due to the high wind pressure when the train enters the station; at the same time, the mechanical unlocking process of the escape doors on the platform side is relatively complicated, and in case of an emergency, the escape doors may not be able to be opened quickly and in a timely manner. Summary of the Invention

[0004] In view of this, and to address the aforementioned technical problems, it is necessary to provide an escape door lock mechanism that is simple and quick to unlock.

[0005] This invention provides an escape door lock mechanism, comprising: a main lock body mounted on an escape door; a first sub-lock body mounted on one end of the escape door; a first lock seat mounted on a door frame that cooperates with the escape door and corresponding to the first sub-lock body; the first sub-lock body and the first lock seat cooperate to lock the escape door; a second sub-lock body mounted on the other end of the escape door; a second lock seat mounted on the door frame of the escape door and corresponding to the second sub-lock body; the second sub-lock body and the second lock seat cooperate to lock the escape door; and a handle rotatably mounted on the main lock body. The main lock body includes a lock housing, an electromagnetic component, and a transmission component. The electromagnetic component and the transmission component are respectively mounted within the lock housing. The first sub-lock body and the second sub-lock body are respectively connected to the transmission component. The electromagnetic component drives the transmission component to cooperate with the handle, so that when the handle is rotated, the first sub-lock body and the second sub-lock body can be separated from their corresponding first lock seat and second lock seat via the transmission component to unlock the door.

[0006] In one embodiment, the transmission assembly includes a first transmission assembly and a second transmission assembly; the first transmission assembly is mounted on the second transmission assembly, the second transmission assembly is mounted on the lock housing, and the first and second sub-lock bodies are respectively connected to the second transmission assembly; when the electromagnetic assembly is energized, it drives the first transmission assembly to engage with the handle; the handle rotates, causing the first transmission assembly to link with the second transmission assembly, so that the second transmission assembly can respectively drive the first and second sub-lock bodies to separate from the corresponding first and second lock seats to unlock.

[0007] In one embodiment, the second transmission component includes: a transmission block, one end of which is inserted into and engages with the transmission block, and the first transmission component is mounted on the transmission block; a linkage component, which is pulsatorically connected to the first and second sub-lock bodies respectively; a transmission shaft, whose two ends are connected to the transmission block and the linkage component respectively; the electromagnetic component is energized to drive the first transmission component to engage with the handle; rotating the handle drives the first transmission component to rotate the transmission block, the rotation of the transmission block drives the transmission shaft to rotate, and the transmission shaft drives the linkage component to rotate, thereby causing the first and second sub-lock bodies to separate from and unlock their corresponding first and second lock seats respectively.

[0008] In one embodiment, the first transmission assembly includes: a first push pin slidably disposed on the transmission block, and the first push pin being located on the main lock body near the first sub-lock body; a first elastic element for driving the first push pin back to the unlocked state; the first elastic element being sleeved on the first push pin, with one end of the first elastic element connected to the transmission block and the other end connected to the first push pin; the electromagnetic assembly being energized, pushing the first push pin to slide toward the handle until the first push pin engages with the end of the handle located within the transmission block; rotating the handle causes the first push pin and the transmission block to rotate, thereby driving the transmission shaft to rotate.

[0009] In one embodiment, the first transmission assembly further includes: a second push pin slidably disposed on the transmission block, and the second push pin being located on the main lock body near the second sub-lock body; a second elastic member for driving the second push pin back to the unlocked state; the second elastic member being sleeved on the second push pin, with one end of the second elastic member connected to the transmission block and the other end connected to the second push pin; an eccentric plate being mounted on the lock housing and located at the end of the second push pin away from the first push pin; the eccentric plate rotating pushes the second push pin toward the handle until the second push pin engages with the end of the handle located within the transmission block; rotating the handle causes the second push pin and the transmission block to rotate, thereby driving the transmission shaft to rotate.

[0010] In one embodiment, the first transmission assembly further includes: a first slider slidably disposed within the lock housing, and the first slider being located between the first ejector pin and the electromagnetic assembly; a second slider slidably disposed within the lock housing, and the second slider being located between the eccentric plate and the second ejector pin; in the unlocked state, the electromagnetic assembly pushes the first slider toward the first ejector pin to engage the first ejector pin with the handle; and / or, the eccentric plate rotates, pushing the second slider toward the second ejector pin to engage the second ejector pin with the handle.

[0011] In one embodiment, the linkage component includes: a support shaft rotatably mounted on the lock housing; an unlocking block mounted on the lock housing, and the unlocking block is rotatable relative to the lock housing; the unlocking block is connected to the drive shaft, and the rotation of the drive shaft can drive the unlocking block to rotate; a first connecting seat, rotatably connected to the first sub-lock body; a second connecting seat, rotatably connected to the second sub-lock body; a transfer member, the second connecting seat being rotatably connected to the transfer member, and the connection position being eccentrically set relative to the center of the transfer member; the first connecting seat being rotatably connected to the transfer member, and the connection position being eccentrically set relative to the center of the transfer member; the rotation of the drive shaft drives the unlocking block to rotate, and when the unlocking block rotates, it pushes the first connecting seat to move away from the first lock seat, so as to drive the first sub-lock body to separate and unlock from the first lock seat; the movement of the first connecting seat can drive the transfer member to rotate, and the transfer member drives the second connecting seat to move away from the second lock seat, so as to separate and unlock the second sub-lock body from the second lock seat.

[0012] In one embodiment, the first connecting seat has a first assembly groove, and the unlocking block is located in the first assembly groove; the unlocking block rotates to contact the groove wall of the first assembly groove to push the first connecting seat to move away from the first locking seat.

[0013] In one embodiment, the escape door lock mechanism further includes a push rod, the handle is mounted on one side of the escape door, and the push rod is mounted on the other side of the escape door; one end of the push rod is hinged to the escape door; the linkage component further includes a fork, the fork is mounted on the support shaft and cooperates with the first connecting seat; rotating the push rod causes the support shaft to rotate, thereby causing the fork to rotate, so that the fork pushes the first connecting seat to move away from the first lock seat, thereby causing the first lock body to separate and unlock from the first lock seat.

[0014] In one embodiment, the first connecting seat has a second mounting groove, and the shift fork is located in the second mounting groove; the shift fork rotates to contact the groove wall of the second mounting groove to push the first connecting seat to move away from the first locking seat.

[0015] In one embodiment, the first locking body includes: a first mounting base, mounted on the escape door at one end near the first locking seat; a limiting component, disposed on the first mounting base, and the limiting component is movable relative to the first mounting base; the limiting component is connected to the transmission component; a latch, rotatably disposed on the first mounting base, and when the escape door is in the locked state, the latch is at least partially located extending beyond the first mounting base and engaging with the second locking seat for locking; a latch torsion spring, one end of which is connected to the first mounting base and the other end of which is connected to the latch, the latch torsion spring being able to drive the latch to always return to the unlocked state; in the locked state, the limiting component abuts against the latch to limit the rotation of the latch; the transmission component drives the limiting component to move away from the second locking seat, so that the limiting component disengages from the latch, and the latch is driven to rotate by the torque of the latch torsion spring, so that the latch separates from the second locking seat and unlocks.

[0016] In one embodiment, the second locking body includes a pin and a second mounting base. The second mounting base is mounted on the escape door, and the pin passes through the second mounting base and is mounted on the second mounting base. One end of the pin is connected to the transmission assembly. The second lock seat has a through hole corresponding to the end of the pin. The transmission assembly drives the pin to move toward the through hole, and the other end of the pin extends into the through hole to lock the escape door and the door frame.

[0017] In one embodiment, the electromagnetic component includes an electromagnet and an electromagnetic drive. When the electromagnet is energized, it drives the electromagnetic drive to move toward the transmission component, thereby pushing the transmission component to engage with the handle.

[0018] The escape door lock mechanism provided by this invention has the following advantages compared to the prior art:

[0019] This application provides an escape door lock mechanism, including an electromagnetic component and a transmission component. The electromagnetic component and the transmission component are configured to work together, and the transmission component is connected to a first lock body and a second lock body respectively. In an emergency, the electromagnetic component is quickly energized. When the electromagnetic component is energized, it drives the transmission component to work with the handle. When the handle is turned, the transmission component working with the handle drives the first lock body and the second lock body to separate from the corresponding first lock seat and second lock seat, thereby unlocking the door. The unlocking process is simple and extremely fast, and can effectively deal with emergencies.

[0020] This application provides an escape door lock mechanism that allows for quick unlocking on one side of the escape door using a handle in conjunction with a key or electromagnetic component, and on the other side by pushing a push rod. This means the escape door can be unlocked from both inside and outside, making unlocking convenient, flexible, and fast, effectively meeting emergency and safety requirements. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the escape door lock mechanism in one embodiment of the present invention;

[0022] Figure 2 for Figure 1 Exploded view of the overall structure of the escape door lock mechanism;

[0023] Figure 3 This is an external schematic diagram of the first part of the main lock body in one embodiment of the present invention;

[0024] Figure 4 for Figure 3 Schematic diagram of the internal structure of the first part of the central main lock body;

[0025] Figure 5 for Figure 4 Cross-sectional view of the first section of the central main lock body;

[0026] Figure 6 for Figure 4 A schematic diagram of the internal structure of the first part of the central lock body in the unlocked state;

[0027] Figure 7 This is a schematic diagram of the internal structure of the second part of the main lock body in one embodiment of the present invention;

[0028] Figure 8 for Figure 7 Cross-sectional view of the second section of the central main lock body;

[0029] Figure 9 for Figure 7 A schematic diagram of the internal structure of the second part of the main lock body in the unlocked state;

[0030] Figure 10 for Figure 9 Cross-sectional view of the second section of the central main lock body;

[0031] Figure 11 This is a schematic diagram of the structure of the first connecting seat in one embodiment of the present invention;

[0032] Figure 12 This is a schematic diagram showing the connection of the first connecting seat, the second connecting seat, and the transfer component in one embodiment of the present invention;

[0033] Figure 13 This is a schematic diagram of the internal structure of the first locking body in one embodiment of the present invention;

[0034] Figure 14 for Figure 13 A schematic diagram of the first locking body and the first locking seat in the unlocked state;

[0035] Figure 15 for Figure 13 A schematic diagram of the first sub-lock body and the first lock seat in the unlocked state;

[0036] Figure 16 for Figure 13 A schematic diagram of the structure of the locking tongue;

[0037] Figure 17 This is a schematic diagram of the internal structure of the second locking body in one embodiment of the present invention;

[0038] Figure 18 This is a schematic diagram of the handle structure in one embodiment of the present invention;

[0039] In the diagram, 100 is the escape door lock mechanism; 10 is the main lock body; 11 is the lock shell; 111 is the first section; 112 is the second section; 12 is the electromagnetic component; 121 is the electromagnet; 122 is the electromagnetic drive component; 13 is the first transmission component; 131 is the first ejector pin; 132 is the first elastic element; 133 is the second ejector pin; 134 is the second elastic element; 135 is the eccentric plate; 136 is the keyhole; 137 is the first slider; 138 is the second slider; 139 is the receiving area; 14 is the second transmission component; 141 is the transmission block; 1411 is the first through hole; 1412 is the second through hole; 142 is the first slide groove; 143 is the transmission shaft; 144 is the limiting block; 15 is the linkage component; 151 is the support shaft; 152 is the unlocking block; 153 is the first connecting seat; 1531 is the first assembly. 1532, Second assembly slot; 154, Second connecting seat; 155, Transfer component; 1551, Waist-shaped hole; 156, Support boss; 16, Shift fork; 17, First connecting rod; 18, Second connecting rod; 19, Shift fork torsion spring; 20, First sub-lock body; 21, First mounting seat; 211, Second slide groove; 22, Limiting component; 221, Connecting component; 222, Third elastic component; 223, Rolling wheel; 224, Protrusion; 23, Lock tongue; 231, Limiting plane; 232, Rolling surface; 233, Lock groove; 24, Lock tongue torsion spring; 25, Rolling wheel; 30, Second sub-lock body; 31, Pin; 32, Second mounting seat; 33, Fourth elastic component; 40, Handle; 41, Slot; 42, Handle torsion spring; 50, First lock seat; 60, Second lock seat; 70, Push rod. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] Currently, in subway rail transit systems, there is a risk that escape doors may be opened due to high wind pressure when a train enters the station. To address this risk, the lock mechanism of the escape door is complex, which leads to the disadvantage of a complicated mechanical unlocking process. In case of an emergency, the escape door cannot be opened quickly and in a timely manner.

[0044] The present invention provides an escape door lock mechanism 100, which can be used on escape doors and end doors of rail transit, or emergency doors in daily places.

[0045] See Figure 1-18 The present invention provides an escape door lock mechanism 100 comprising a main lock body 10, a first sub-lock body 20, a second sub-lock body 30, a first lock seat 50, a second lock seat 60, and a handle 40. The main lock body 10 is mounted on the escape door; the first sub-lock body 20 and the second sub-lock body 30 are respectively mounted at opposite ends of the escape door; the first lock seat 50 is mounted on the door frame that cooperates with the escape door and corresponds to the first sub-lock body 20; the first sub-lock body 20 cooperates with the first lock seat 50 to lock the escape door; similarly, the second lock seat 60 is mounted on the door frame of the escape door and corresponds to the second sub-lock body 30; the second sub-lock body 30 cooperates with the second lock seat 60 to lock the escape door; the handle 40 is rotatably mounted on the main lock body 10. The main lock body 10 includes a lock shell 11, an electromagnetic component 12, and a transmission component. The electromagnetic component 12 and the transmission component are respectively installed inside the lock shell 11. The first sub-lock body 20 and the second sub-lock body 30 are respectively connected to the transmission component. The electromagnetic component 12 is used to drive the transmission component to cooperate with the handle 40 so that when the handle 40 is turned, the first sub-lock body 20 and the second sub-lock body 30 can be separated from the corresponding first lock seat 50 and second lock seat 60 through the transmission component to unlock.

[0046] This application provides an escape door lock mechanism 100, which achieves double locking protection by setting a first sub-lock body 20 and a second sub-lock body 30 to cooperate with the corresponding first lock seat 50 and second lock seat 60, respectively. This improves the escape door's ability to withstand external forces and eliminates the risk of the escape door being opened due to high wind pressure when a train enters the station. Furthermore, through the cooperation of an electromagnetic component 12 and a transmission component, with the transmission component connected to both the first sub-lock body 20 and the second sub-lock body 30, in an emergency, the electromagnetic component 12 is quickly energized. When energized, the electromagnetic component 12 drives the transmission component to cooperate with the handle 40. Turning the handle 40, through the transmission component cooperating with the handle 40, simultaneously causes the first sub-lock body 20 and the second sub-lock body 30 to separate from their corresponding first lock seat 50 and second lock seat 60, achieving linked unlocking. The unlocking process is simple and extremely fast, effectively responding to emergencies.

[0047] Please see Figure 1 and Figure 2 ,in Figure 1 This is a schematic diagram of the overall structure of the escape door lock mechanism 100 in one embodiment of the present invention; Figure 2 for Figure 1 An exploded view of the overall structure of the escape door lock mechanism 100; the escape door lock mechanism 100 also includes a push rod 70, with both ends of the push rod 70 rotatably mounted on one side of the escape door, and a handle 40 located on the other side of the escape door. Typically, the handle 40 is installed outside the escape door, and the push rod 70 is installed inside the escape door. The handle 40 and the push rod 70 are respectively connected to the main lock body 10. Rotating the handle 40 or the push rod 70 can drive the transmission components inside the main lock body 10 to move, thereby unlocking the first sub-lock body 20 and the second sub-lock body 30, so that the door can be unlocked from inside or outside the escape door.

[0048] See Figure 13-16 , Figure 13 This is a schematic diagram of the internal structure of the first locking body 20 in one embodiment of the present invention; Figure 14 for Figure 13 A schematic diagram of the first locking body 20 and the first locking seat 50 in the unlocked state; Figure 15 for Figure 13 A schematic diagram of the first sub-lock body 20 and the first lock seat 50 in the unlocked state;

[0049] The first sub-lock body 20 includes a first mounting base 21, a limiting component 22, a latch 23, and a latch torsion spring 24. The first mounting base 21 is mounted on the escape door at one end near the first lock seat 50. The limiting component 22 is disposed on the first mounting base 21 and is movable relative to the first mounting base 21. The limiting component 22 is connected to the first connecting rod 17. The latch 23 is disposed on the first mounting base 21 and is rotatable relative to the first mounting base 21. When the escape door is in the locked state, the latch 23 is at least partially extended outside the first mounting base 21 and locks with the first lock seat 50. One end of the latch torsion spring 24 is connected to the first mounting base 21, and the other end is connected to the latch 23. The latch torsion spring 24 is used to drive the latch 23 to always return to the unlocked state.

[0050] See Figure 14 In the locked state, the limiting component 22 abuts against the bolt 23 to limit the rotation of the bolt 23; see reference Figure 15 When unlocking, the transmission component drives the limiting component 22 to move away from the first lock seat 50, so that the limiting component 22 disengages from the bolt 23. The bolt 23 is driven to rotate by the torque of the bolt torsion spring 24, so that the bolt 23 separates from the first lock seat 50 and unlocks.

[0051] As a preferred option, please refer to Figures 13-16 In this embodiment, the limiting component 22 includes a connector 221, a third elastic element 222, and a rolling wheel 223. The connector 221 is slidably disposed within the first mounting base 21. One end of the connector 221 is connected to the first connecting rod 17, and the other end is equipped with the rolling wheel 223. The rolling wheel 223 can roll relative to the connector 221. The latch 23 has a limiting plane 231. In the locked state, the rolling wheel 223 and the connector 221 abut against the limiting plane 231 to overcome the force of the latch torsion spring 24 on the latch 23, thereby limiting the rotation of the latch 23. The latch 23 also has a rolling curved surface 232 and a lock groove 233. When the first lock seat 50 extends into the lock groove 233, the lock is closed. When unlocking, the connector 221 and the rolling wheel 223 disengage from the limiting plane 231. Due to the restoring force of the lock tongue torsion spring 24, the lock tongue 23 rotates, causing the first lock seat 50 to disengage from the lock groove 233, thereby unlocking.

[0052] One end of the third elastic element 222 is connected to the connector 221, and the other end is connected to the first mounting base 21. In the unlocked state, the first connecting rod 17 overcomes the elastic force of the third elastic element 222 and pulls the connector 221 away from the first lock seat 50, so that the connector 221 drives the rolling wheel 223 to disengage from the limiting plane 231 of the lock tongue 23, thereby unlocking. After unlocking, the pulling force of the first connecting rod 17 disappears, and the third elastic element 222 returns to its initial state due to its own elastic deformation, thereby driving the connector 221 to slide relative to the first mounting base 21 to the initial state before unlocking. At the same time, the connector 221 moves toward the lock tongue 23, so that the rolling wheel 223 contacts the rolling curved surface 232 and pushes the lock tongue 23 to rotate until the lock tongue 23 rotates to the initial state before unlocking. At this time, the rolling wheel 223 abuts against the limiting plane 231. This allows the first lock seat 50 and the bolt 23 to abut against and exert force on the inner wall of the lock groove 233 of the first mounting base 21 when the door is closed, pushing the bolt 23 to rotate slightly counterclockwise (to... Figure 14 (The state shown is for reference) so that the first lock seat 50 engages with the lock groove 233 to achieve locking. Of course, in other embodiments, the specific structure of the limiting component 22 is not limited to what is described above or shown in the figure. For example, it can also be other combined structures, as long as it can limit the locking tongue 23.

[0053] In addition, the connector 221 is slidably disposed in the first mounting base 21; specifically, the first mounting base 21 has a second sliding groove 211 on both sides, and the connector 221 has a protrusion 224 on both sides that cooperates with the second sliding groove 211. The protrusion 224 can slide in the second sliding groove 211, so that when the first connecting rod 17 pulls the connector 221, it drives the protrusion 224 to slide along the second sliding groove 211.

[0054] See Figure 17 The second lock body 30 includes a pin 31 and a second mounting base 32. The second mounting base 32 is mounted on the escape door, and the pin 31 passes through the second mounting base 32 and is mounted on the second mounting base 32. One end of the pin 31 is connected to the transmission assembly. The second lock seat 60 (not shown in the figure) has a lock hole (not shown in the figure), which corresponds to the end of the pin 31. The transmission assembly drives the pin 31 to move toward the lock hole, and the other end of the pin 31 extends into the lock hole to lock the escape door and the door frame.

[0055] For further details, please refer to [link / reference]. Figure 17The second locking body 30 also includes a fourth elastic element 33, which is sleeved on the outside of the pin 31. One end of the fourth elastic element 33 is connected to the pin 31, and the other end is connected to the second mounting base 32. In the unlocked state, the second connecting rod 18 overcomes the elastic force of the fourth elastic element 33 and pulls the pin 31 to move away from the second lock seat 60, so that the pin 31 is separated from the second lock seat 60 and unlocked. After unlocking, the fourth elastic element 33 returns to its initial state, so as to push the pin 31 to move towards the second lock seat 60 and drive the pin 31 back to its initial state before unlocking.

[0056] Please see Figure 18 , Figure 18 This is a schematic diagram of the handle 40 in one embodiment. One end of the handle 40 has a slot 41, which engages with a transmission component. When the handle 40 is rotated, the wall of the slot 41 applies a force to the transmission component, thus driving the transmission component to move. Of course, in other embodiments, the way the handle 40 engages with the transmission component is not limited to the above-described engaging engagement.

[0057] Please see Figure 5 A handle torsion spring 42 is fitted onto one end of the handle 40 located inside the lock housing 11. The handle torsion spring 42 is used to drive the handle 40 to automatically return to its initial unlocked state. For user convenience, when locked, the handle 40 overcomes its own weight and is in a horizontal position due to the drive of the handle torsion spring 42, making it easy to directly press down on the handle 40 to unlock. After unlocking, the handle torsion spring 42 elastically deforms back to its initial state, so that the handle 40 returns to a horizontal position.

[0058] Please refer to 1-3. Figure 3 This is an external schematic diagram of the first portion 111 of the main lock body 10 according to one embodiment of the present invention. The lock housing 11 includes a first portion 111 and a second portion 112, which are combined to form the lock housing 11. The electromagnetic component 12 and the transmission component are both installed inside the lock housing 11. Specifically, the first portion 111 is located on the outside of the escape door, and the handle 40 is installed on the first portion 111. Corresponding to the position of the handle 40, the electromagnetic component 12 is also installed on the first portion 111. The second portion 112 is located on the inside of the escape door, and one end of the push rod 70 is correspondingly installed on the second portion 112.

[0059] In one embodiment, see [reference] Figure 4 , Figure 4 This is a schematic diagram of the internal structure of the first part 111 of the main lock body 10. The electromagnetic component 12 includes an electromagnet 121 and an electromagnetic drive 122. When the electromagnet 121 is energized, it generates electromagnetic force, which drives the electromagnetic drive 122 to move toward the transmission mechanism, thereby pushing the transmission component to engage with the handle 40.

[0060] See Figure 4-6 ,in Figure 4 A schematic diagram of the internal structure of the first part 111 of the main lock body 10. Figure 5 for Figure 4 A cross-sectional view of the first part 111 of the central main lock body 10; Figure 6 for Figure 4 A schematic diagram of the internal structure of the first part 111 of the main lock body 10 in the unlocked state.

[0061] The transmission assembly includes a first transmission assembly 13 and a second transmission assembly 14. The first transmission assembly 13 is mounted on the first portion 111 of the lock housing 11 and is mounted on the second transmission assembly 14. The second transmission assembly 14 is installed inside the lock housing 11. The first sub-lock body 20 and the second sub-lock body 30 are respectively connected to the second transmission assembly 14. When the electromagnetic assembly 12 is energized, it drives the first transmission assembly 13 to engage with the slot 41 of the handle 40. When the handle 40 is rotated, the first transmission assembly 13 is linked with the second transmission assembly 14, so that the second transmission assembly 14 drives the first sub-lock body 20 and the second sub-lock body 30 to separate from the corresponding first lock seat 50 and second lock seat 60 and unlock them.

[0062] Please see Figure 4-10 ,in Figure 7 This is a schematic diagram of the internal structure of the second part 112 of the main lock body 10 in one embodiment of the present invention; Figure 8 for Figure 7 A cross-sectional view of the second part 112 of the main lock body 10; Figure 9 for Figure 7 A schematic diagram of the internal structure of the second part 112 of the main lock body 10 in the unlocked state; Figure 10 for Figure 9 A cross-sectional view of the second part 112 of the main lock body 10.

[0063] The first transmission assembly 13 includes a first ejector pin 131 and a first elastic element 132. The first ejector pin 131 is slidably disposed on the second transmission assembly 14. The first elastic element 132 is used to drive the first ejector pin 131 back to its unlocked state. The first elastic element 132 is sleeved on the first ejector pin 131 and one end abuts against the first ejector pin 131. When the electromagnetic assembly 12 is energized, it pushes the first ejector pin 131 to slide toward the handle 40 until the first ejector pin 131 is inserted into the corresponding slot 41 on the handle 40. When the handle 40 is rotated, the side wall of the slot 41 acts on the first ejector pin 131, which can push the first ejector pin 131 to rotate with the handle 40, thereby driving the second transmission assembly 14 to move in conjunction with it. Of course, in other embodiments, the specific structure of the first transmission assembly 13 is not limited to what is described above or shown in the figure. The first transmission assembly 13 can be designed according to the actual application. The first transmission assembly 13 only needs to be able to cooperate with the handle 40 and move in conjunction with the second transmission assembly 14 for transmission.

[0064] Furthermore, to prevent electronic unlocking failure, this embodiment also provides a mechanical unlocking method, using a key for unlocking. Thus, the first transmission assembly 13 further includes a second pin 133, a second elastic element 134, and an eccentric plate 135; similar to the installation method of the first pin 131, the second pin 133 is slidably disposed on the second transmission assembly 14; the second elastic element 134 is used to drive the second pin 133 back to its unlocked state, the second elastic element 134 is sleeved on the second pin 133, and one end of the second elastic element 134 abuts against the second pin 133; the eccentric plate 135 is installed in the first portion 111 of the lock housing 11, and is located away from the first pin 131 from the second pin 133. One end; a keyhole 136 is provided on the eccentric plate 135. When the key is inserted into the keyhole 136 and rotated, it drives the eccentric plate 135 to rotate, thereby pushing the second pin 133 to slide toward the handle 40 until the second pin 133 engages with the corresponding slot 41 on the handle 40. At this time, rotating the handle 40 drives the second pin 133 to rotate. The rotation of the second pin 133 drives the second transmission component 14 to move together, thereby realizing the separation and unlocking of the first lock body 20 and the second lock body 30 from the corresponding first lock seat 50 and the second lock seat 60, respectively.

[0065] Continue reading Figure 4 and Figure 5The first transmission assembly 13 further includes a first slider 137 and a second slider 138: the first slider 137 is slidably disposed within the first portion 111 and is located between the first ejector pin 131 and the electromagnetic assembly 12; the second slider 138 is slidably disposed within the first portion 111 and is located between the eccentric plate 135 and the second ejector pin 133; in the unlocked state, the electromagnetic assembly 12 pushes the first slider 137 to slide toward the first ejector pin 131 to push the first ejector pin 131 to engage with the handle 40; and / or, the eccentric plate 135 rotates, pushing the second slider 138 to slide toward the second ejector pin 133 to push the second ejector pin 133 to engage with the handle 40. With this configuration, the contact area between the first slider 137 and the electromagnetic drive 122 and the first ejector pin 131 is relatively large. Similarly, the contact area between the second slider 138 and the eccentric plate 135 and the second ejector pin 133 is also relatively large. This ensures the transmission between the slider and the ejector pin, and between the slider and the eccentric plate 135 and the electromagnetic drive 122, avoiding the failure of the ejector pin, the eccentric plate 135, and the electromagnetic drive assembly. For example, if the transmission is only directly between the electromagnetic drive 122 and the first ejector pin 131, the contact area between them is relatively small, and the electromagnetic drive 122 and the first ejector pin 131 may not be able to connect properly.

[0066] Preferably, the first slider 137 and the second slider 138 are arranged opposite to each other, and the first slider 137 and the second slider 138 surround a circular receiving area 139 for receiving a part of the second transmission assembly 14 used for mounting the first ejector pin 131 and the second ejector pin 133, and for receiving the first ejector pin 131 and the second ejector pin 133. The second transmission assembly 14 can drive the first ejector pin 131 and the second ejector pin 133 to rotate within the circular receiving area 139.

[0067] Please see Figure 4-10 The second transmission assembly 14 includes a transmission block 141, a linkage assembly 15, and a transmission shaft 143.

[0068] The transmission block 141 is installed within the first portion 111 of the lock housing 11, and is located within the receiving area 139. One end of the handle 40 is inserted into the transmission block 141 and engages with it. Notably, the transmission block 141 has a first through hole 1411 adapted to the first ejector pin 131 and a second through hole 1412 adapted to the second ejector pin 133. The first through hole 1411 and the second through hole 1412 are respectively connected to the corresponding slots 41. The first ejector pin 131 is slidably disposed within the first through hole 1411. The first ejector pin 131 is pushed by the electromagnetic component 12 and slides along the first through hole 1411 toward the handle 40 until one end of the first ejector pin 131 extends into the corresponding slot 41. Similarly, the second ejector pin 133 is slidably disposed within the second through hole 1412. The second ejector pin 133 is pushed by the eccentric plate 135 and slides along the second through hole 1412 toward the handle 40 until one end of the second ejector pin 133 extends into the corresponding slot 41.

[0069] In addition, the linkage component 15 is installed in the second part 112 of the lock housing 11, and the linkage component 15 is connected to the first lock body 20 and the second lock body 30 respectively; the two ends of the transmission shaft 143 are connected to the transmission block 141 and the linkage component 15 respectively; when the electromagnetic component 12 is energized, it drives the first pin 131 to extend into the slot 41 of the handle 40, or the eccentric plate 135 is rotated by the key, and the eccentric plate 135 pushes the second pin 133 to extend into the slot 41 of the handle 40; when the handle 40 is rotated, the handle 40 drives the first pin 131 and the second pin 133 to rotate, thereby driving the transmission block 141 to rotate. When the transmission block 141 rotates, it drives the transmission shaft 143 connected to it to rotate. The transmission shaft 143 drives the linkage component 15 to drive, so as to drive the first lock body 20 and the second lock body 30 to separate from the corresponding first lock seat 50 and second lock seat 60 respectively and unlock them; the transmission process is simple and fast, effectively improving the unlocking efficiency.

[0070] Further, see Figure 6 The second transmission assembly 14 also includes a limiting block 144, which is mounted on the lock housing 11 to limit the displacement of the transmission block 141. After the escape door is successfully unlocked, the handle 40 is released. Due to the action of the handle torsion spring 42, the handle 40 rotates against gravity, thereby driving the transmission block 141 to rotate until the transmission block 141 abuts against the limiting block 144. The limiting block 144 stops the transmission block 141 and the handle 40, so that the handle 40 is in a horizontal state and the first ejector pin 131 is in a vertical state. After the electromagnetic assembly 12 is de-energized, the first slider 137 falls due to gravity, and the first ejector pin 131, due to the action of the first elastic element 132, disengages from the slot 41 of the handle 40 and returns to its initial position.

[0071] See Figure 7-11The linkage component 15 includes an unlocking block 152, a support shaft 151, a first connecting seat 153, a second connecting seat 154, and a transfer component 155;

[0072] The support shaft 151 is installed within the second section 112 and is rotatable relative to the lock housing 11. The unlocking block 152 is rotatably mounted on the support shaft 151 and is connected to the transmission shaft 143, so that rotation of the transmission shaft 143 drives rotation of the unlocking block 152. The first connecting seat 153 is rotatably connected to the first sub-lock body 20; the second connecting seat 154 is rotatably connected to the second sub-lock body 30. The second connecting seat 154 is rotatably connected to the transfer member 155, and the connection position is eccentrically set relative to the center of the transfer member 155. The first connecting seat 153 is rotatably connected to the transfer member 155, and the connection position is eccentrically set relative to the center of the transfer member 155. It can be understood that the eccentric setting refers to the connection position not coinciding with the center of the transfer member 155. Thus, the first connecting seat 153 and the second connecting seat 154 can achieve opposite or reciprocal movement through the eccentric movement of the transfer member 155. Specifically, in the unlocked state, the drive shaft 143 rotates, causing the unlocking block 152 to rotate. When the unlocking block 152 rotates, it pushes the first connecting seat 153 to move away from the first lock seat 50, thereby causing the first sub-lock body 20 to separate from the first lock seat 50 and unlock. The movement of the first connecting seat 153 causes the intermediate component 155 to rotate eccentrically. Through the linkage of the intermediate component 155, the second connecting seat 154 is driven to move away from the second lock seat 60, so that the second sub-lock body 30 separates from the second lock seat 60 and unlocks.

[0073] See Figure 12 The transfer component 155 has two oblong holes 1551. The first connecting seat 153 and the second connecting seat 154 are respectively provided with support bosses 156 that mate with the corresponding oblong holes 1551. The support bosses 156 extend into the oblong holes 1551 and can slide within them. Thus, the first connecting seat 153 pushes the transfer component 155 to rotate via the corresponding support bosses 156. When the transfer component 155 rotates, the sidewall of its oblong hole 1551 acts on the corresponding other support boss 156, thereby pushing the second connecting seat 154 connected to that support boss 156, achieving linkage between the first connecting seat 153, the transfer component 155, and the second connecting seat 154. Of course, in other embodiments, the connection method between the first connecting seat 153 and the second connecting seat 154 and the transfer component 155 is not limited to the method described above; for example, the first connecting seat 153 and the second connecting seat 154 can also be hinged to the transfer component 155.

[0074] As described above, the handle 40 is installed on the outside of the escape door, and the push rod 70 is installed on the inside of the escape door. The escape door lock mechanism 100 provided in this application can be unlocked from both inside and outside the escape door. Thus, to achieve unlocking from the inside of the escape door via the push rod 70, in this embodiment, refer to... Figure 7-11 The linkage component 15 also includes a shift fork 16. One end of the push rod 70 is connected to the support shaft 151, and the other end is rotatably connected to one side of the escape door. Rotating the push rod 70 causes the support shaft 151 to rotate. The shift fork 16 is mounted on the support shaft 151 and connected to it, cooperating with the first connecting seat 153. Rotating the push rod 70 causes the support shaft 151 to rotate, thereby causing the shift fork 16 to rotate, so that the shift fork 16 pushes the first connecting seat 153 to move away from the first lock seat 50, thereby causing the first sub-lock body 20 to separate and unlock from the first lock seat 50.

[0075] See Figure 7 and Figure 11 The first connecting seat 153 has a first mounting groove 1531, and the unlocking block 152 is located in the first mounting groove 1531. The unlocking block 152 rotates to contact the groove wall of the first mounting groove 1531, so as to push the first connecting seat 153 to move away from the first locking seat 50.

[0076] Furthermore, a second mounting groove 1532 is provided on the first connecting seat 153, and the shift fork 16 is located in the second mounting groove 1532; the shift fork 16 rotates to contact the groove wall of the second mounting groove 1532 to push the first connecting seat 153 to move away from the first lock seat 50. With this configuration, the linkage component 15 is driven by the cooperation of the first connecting seat 153, the unlocking block 152, and the shift fork 16, and the unlocking block 152 and the shift fork 16 are respectively installed in the first mounting groove 1531 and the second mounting groove 1532, making full use of the space inside the lock housing 11 to reduce the volume of the escape door lock mechanism 100.

[0077] In addition, in this embodiment, the linkage component 15 also includes a torsion spring 19. The torsion spring 19 is mounted on the support shaft 151 and connected to the torsion spring 16. When unlocking, the push rod 70 needs to be rotated to overcome the elastic force of the torsion spring 19, which drives the torsion spring 16 to rotate. After unlocking is completed, the push rod 70 is released, and the torsion spring 19 returns to its initial state to drive the push rod 70 back to its initial position, thus achieving automatic reset without manual reset, simplifying the unlocking process. Furthermore, the push rod 70 automatically resets to prevent it from being suspended in the air.

[0078] See Figure 2Since the first and second sub-lock bodies 20 and 30 are installed at both ends of the escape door, and there is a certain distance between them and the main lock body 10, the linkage assembly 15 also includes a first connecting rod 17 and a second connecting rod 18. One end of the first connecting rod 17 is connected to the first connecting seat 153, and the other end is connected to the limiting assembly 22 of the first sub-lock body 20. One end of the second connecting rod 18 is connected to the second connecting seat 154, and the other end is connected to the pin 31 of the second sub-lock body 30. It can be understood that the linkage unlocking of the main lock body 10 and the first and second sub-lock bodies 20 and 30 is achieved through the auxiliary connection and transmission of the first connecting rod 17 and the second connecting rod 18.

[0079] The following is a brief description of the unlocking process of the escape door based on the specific structure of the escape door lock mechanism 100 in this embodiment:

[0080] First, from outside the escape door, the first transmission assembly 13 engages with the handle 40, driving the transmission block 141 and the connected transmission shaft 143 to rotate; specifically, there are two unlocking methods from the outside of the escape door:

[0081] The first unlocking method: unlocking is achieved through the cooperation of the electromagnetic component 12 and the transmission component. Specifically, when the staff triggers the access control system, the electromagnet 121 is energized, and the electromagnetic drive component 122 moves toward the first pin 131 through electromagnetic force. The electromagnetic drive component 122 pushes the first slider 137 to slide toward the first pin 131 until the first slider 137 touches and pushes the first pin 131 to slide along the first through hole 1411, so that the first pin 131 extends into the corresponding slot 41 of the handle 40. At the same time, the corresponding handle 40 is rotated outside the escape door, so that the groove wall of the slot 41 acts on the first pin 131, thereby driving the first pin 131 to rotate. The rotation of the first pin 131 can drive the transmission block 141 to rotate; and when the transmission block 141 rotates, it drives the transmission shaft 143 connected to it to rotate.

[0082] The second unlocking method: unlocking with a key. Specifically, when the staff opens the escape door with a key, the key is inserted into the keyhole 136 on the eccentric plate 135. Turning the key causes the eccentric plate 135 to rotate. As the eccentric plate 135 rotates, it pushes the second slider 138 towards the second pin 133 until the second slider 138 touches and pushes the second pin 133 to slide along the second through hole 1412 until the second pin 133 extends into the corresponding slot 41 on the handle 40. At the same time, the corresponding handle 40 is turned outside the escape door so that the groove wall of the slot 41 acts on the second pin 133, thereby causing the second pin 133 to rotate. The rotation of the second pin 133 can drive the transmission block 141 to rotate; and the rotation of the transmission block 141 drives the transmission shaft 143 connected to it to rotate.

[0083] Next, the drive shaft 143 rotates, driving the linkage component 15 in the second section 112 to move together, thereby causing the first lock body 20 and the second lock body 30 connected to the linkage component 15 to separate and unlock from the corresponding first lock seat 50 and second lock seat 60, respectively. Specifically, the rotation of the drive shaft 143 drives the unlocking block 152 connected to the drive shaft 143 to rotate. The unlocking block 152 abuts against the groove wall of the first mounting groove 1531 of the first connecting seat 153 and applies a pushing force to the groove wall. As a result, the first connecting seat 153 moves away from the first lock seat 50. The first connecting seat 153 is connected to the first connecting rod 17, so that the first connecting seat 153 pulls the limiting component 22 away from the first lock seat 50 through the first connecting rod 17, so that the limiting component 22 disengages from the limiting plane 231 of the lock tongue 23. At this time, the lock tongue 23 rotates under the drive of the lock tongue torsion spring 24. This causes the first lock seat 50 to disengage from the lock groove 233, thereby unlocking the first sub-lock body 20 from the first lock seat 50. While the first connecting seat 153 drives the first connecting rod 17 to move, the first connecting seat 153 also drives the intermediate component 155 to rotate, so that the intermediate component 155 drives the second connecting seat 154 to move away from the second lock seat 60. Similarly, the second connecting seat 154 is connected to the pin 31 through the second connecting rod 18. Thus, when the second connecting seat 154 moves away from the second lock seat 60, it drives the pin 31 to disengage from the lock hole of the second lock seat 60, thereby simultaneously unlocking the second lock seat 60.

[0084] Alternatively, the door can be unlocked from inside by using a push rod 70 in conjunction with a transmission assembly. Specifically, rotating the push rod 70 causes the support shaft 151 to rotate, which in turn causes the fork 16 mounted on the support shaft 151 to rotate. When the fork 16 rotates, it abuts against the wall of the second mounting groove 1532 and pushes the first connecting seat 153 to move away from the first lock seat 50. As mentioned above, the first connecting seat 153 causes the limiting component 22 in the first sub-lock body 20 to separate from the bolt 23, thereby rotating the bolt 23 to separate the first lock seat 50 from the lock groove 233, thus unlocking the first lock seat 50. At the same time, the first connecting seat 153 is linked with the second connecting seat 154 through the intermediate component 155, causing the second connecting seat 154 to move away from the second lock seat 60, so that the pin 31 disengages from the lock hole of the second lock seat 60, simultaneously unlocking the second lock seat 60. The unlocking process is simple and quick.

[0085] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0086] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any appropriate changes and variations made to the above embodiments within the essential spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An escape door lock mechanism, characterized in that, The escape door lock mechanism includes: The main lock body is installed on the escape door; The first locking mechanism is installed at one end of the escape door; The first lock seat is installed on the door frame that cooperates with the escape door and corresponds to the first sub-lock body; the first sub-lock body cooperates with the first lock seat to lock the escape door. The second locking mechanism is installed at the other end of the escape door; The second lock seat is installed on the escape door frame and corresponds to the second sub-lock body; the second sub-lock body cooperates with the second lock seat to lock the escape door. The handle is rotatably mounted on the main lock body; The main lock body includes a lock shell, an electromagnetic component, and a transmission component. The electromagnetic component and the transmission component are respectively installed inside the lock shell. The first sub-lock body and the second sub-lock body are respectively connected to the transmission component. The electromagnetic component is used to drive the transmission component to cooperate with the handle so that when the handle is turned, the first sub-lock body and the second sub-lock body can be driven to separate from the corresponding first lock seat and the second lock seat through the transmission component to unlock. The transmission assembly includes a first transmission assembly and a second transmission assembly. The second transmission assembly is mounted on the lock housing and includes a transmission block, a linkage assembly, and a transmission shaft. One end of the handle is inserted into the transmission block and engages with it, and the first transmission assembly is mounted on the transmission block. The linkage assembly is connected to the first and second sub-lock bodies respectively. Both ends of the transmission shaft are connected to the transmission block and the linkage assembly respectively. When the electromagnetic assembly is energized, it drives the first transmission assembly to engage with the handle. Rotating the handle drives the first transmission assembly to rotate the transmission block, which in turn drives the transmission shaft to rotate. The transmission shaft then drives the linkage assembly to separate and unlock the first and second sub-lock bodies from their corresponding first and second lock seats. The linkage component includes: a support shaft rotatably mounted on the lock housing; an unlocking block mounted on the lock housing, and the unlocking block is rotatable relative to the lock housing; the unlocking block is connected to the transmission shaft, and the rotation of the transmission shaft can drive the unlocking block to rotate; a first connecting seat, tractively connected to the first sub-lock body; a second connecting seat, tractively connected to the second sub-lock body; and a transfer component; the rotation of the transmission shaft drives the unlocking block to rotate, and when the unlocking block rotates, it pushes the first connecting seat to move away from the first lock seat, thereby causing the first sub-lock body to separate from the first lock seat and unlock; the movement of the first connecting seat can drive the transfer component to rotate, and the transfer component drives the second connecting seat to move away from the second lock seat, thereby causing the second sub-lock body to separate from the second lock seat and unlock; The first connecting seat has a first assembly groove, and the unlocking block is located in the first assembly groove; the unlocking block rotates to contact the groove wall of the first assembly groove, so as to push the first connecting seat to move away from the first locking seat.

2. The escape door lock mechanism according to claim 1, characterized in that, The first transmission assembly is mounted on the second transmission assembly, and the first and second locking bodies are respectively connected to the second transmission assembly; When the electromagnetic component is energized, it drives the first transmission component to cooperate with the handle; when the handle is rotated, the first transmission component is linked with the second transmission component, so that the second transmission component drives the first sub-lock body and the second sub-lock body to separate from the corresponding first lock seat and the second lock seat respectively to unlock.

3. The escape door lock mechanism according to claim 2, characterized in that, The first transmission assembly includes: The first ejector pin is slidably disposed on the transmission block, and the first ejector pin is located on the main lock body on the side close to the first sub-lock body; The first elastic element is used to drive the first ejector pin to return to the unlocked state; the first elastic element is sleeved on the first ejector pin, and one end of the first elastic element is connected to the transmission block, and the other end is connected to the first ejector pin; When the electromagnetic component is energized, it pushes the first ejector pin to slide toward the handle until the first ejector pin engages with one end of the handle located within the transmission block; when the handle is rotated, the handle drives the first ejector pin and the transmission block to rotate, thereby driving the transmission shaft to rotate.

4. The escape door lock mechanism according to claim 3, characterized in that, The first transmission assembly further includes: The second pin is slidably disposed on the transmission block, and the second pin is located on the main lock body on the side close to the second sub-lock body; The second elastic element is used to drive the second ejector pin to return to the unlocked state; the second elastic element is sleeved on the second ejector pin, and one end of the second elastic element is connected to the transmission block, and the other end is connected to the second ejector pin; An eccentric plate is mounted on the lock housing and is located at the end of the second ejector pin away from the first ejector pin; The eccentric plate rotates, pushing the second ejector pin to slide toward the handle until the second ejector pin engages with one end of the handle located within the transmission block; rotating the handle causes the second ejector pin and the transmission block to rotate, thereby driving the transmission shaft to rotate.

5. The escape door lock mechanism according to claim 4, characterized in that, The first transmission assembly further includes: The first slider is slidably disposed within the lock housing, and the first slider is located between the first ejector pin and the electromagnetic component; The second slider is slidably disposed within the lock housing, and the second slider is located between the eccentric plate and the second ejector pin; In the unlocked state, the electromagnetic component pushes the first slider to slide toward the first pin, so as to push the first pin to engage with the handle; and / or, the eccentric plate rotates, pushing the second slider to slide toward the second pin, so as to push the second pin to engage with the handle.

6. The escape door lock mechanism according to claim 1, characterized in that, The second connecting seat is rotatably connected to the transfer component, and the connection position is eccentrically set relative to the center of the transfer component; the first connecting seat is rotatably connected to the transfer component, and the connection position is eccentrically set relative to the center of the transfer component.

7. The escape door lock mechanism according to claim 1, characterized in that, The escape door lock mechanism also includes a push rod; the handle is installed on one side of the escape door, and the push rod is installed on the other side of the escape door; one end of the push rod is rotatably connected to the escape door. The linkage component also includes a shift fork, which is mounted on the support shaft and cooperates with the first connecting seat; rotating the push rod drives the support shaft to rotate, thereby driving the shift fork to rotate, so that the shift fork pushes the first connecting seat to move away from the first lock seat, thereby driving the first sub-lock body to separate and unlock from the first lock seat.

8. The escape door lock mechanism according to claim 7, characterized in that, The first connecting seat has a second mounting groove, and the shift fork is located in the second mounting groove; the shift fork rotates to contact the groove wall of the second mounting groove to push the first connecting seat to move away from the first locking seat.

9. The escape door lock mechanism according to claim 1, characterized in that, The first locking body includes: The first mounting base is installed on the escape door at one end near the first lock base; A limiting component is disposed on the first mounting base, and the limiting component is movable relative to the first mounting base; the limiting component is connected to the transmission component; The latch is rotatably mounted on the first mounting base, and when the escape door is in the locked state, the latch is at least partially extended outside the first mounting base and engages with the first lock seat to lock. A torsion spring for the latch, one end of which is connected to the first mounting base and the other end of which is connected to the latch, the torsion spring for the latch can drive the latch to always return to the unlocked state; In the locked state, the limiting component abuts against the bolt to limit the rotation of the bolt; the transmission component drives the limiting component to move away from the first lock seat, so that the limiting component disengages from the bolt; the bolt is driven to rotate by the torque of the bolt torsion spring, so that the bolt separates from the first lock seat and unlocks.

10. The escape door lock mechanism according to claim 1, characterized in that, The second locking body includes a pin and a second mounting base. The second mounting base is mounted on the escape door, and the pin passes through the second mounting base and is mounted on the second mounting base. One end of the pin is connected to the transmission assembly. The second lock seat has a through hole, which corresponds to the end of the pin; the transmission assembly drives the pin to move toward the through hole, and the other end of the pin extends into the through hole to lock the escape door and the door frame.

11. The escape door lock mechanism according to claim 1, characterized in that, The electromagnetic component includes an electromagnet and an electromagnetic drive. When the electromagnet is energized, it drives the electromagnetic drive to move toward the transmission component, thereby pushing the transmission component to engage with the handle.

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