A sliding escape door lock and escape door

Abstract

The application relates to a push-pull type escape door lock and escape door, belonging to the technical field of escape door locks, which comprises a main lock body, a push rod and a lock tongue, the lock tongue is rotationally arranged on the main lock body, the lock tongue is provided with a reset part for resetting the lock tongue, the main lock body is rotationally provided with a rotating block, the rotating block is connected with the push rod, the main lock body is rotationally provided with a driving rod, the rotating block is provided with abutting blocks at both ends and can abut against the driving rod, a transmission assembly is arranged between the driving rod and the lock tongue, the transmission assembly is used for driving the lock tongue to rotate, the rotating block is provided with a first torsional spring, one end of the first torsional spring abuts against the rotating block, the other end of the first torsional spring abuts against the main lock body, the main lock body is provided with a limiting assembly, the limiting assembly is used for limiting the rotating block, the main lock body is provided with a reset assembly, and the reset assembly is used for resetting the driving rod. The application has the effects of reducing the limitation of the installation position and improving the applicability.

Description

Technical Field

[0001] This invention relates to the field of escape door lock technology, and in particular to a push-pull escape door lock and an escape door. Background Technology

[0002] Escape locks are mainly used on escape doors in public places with high traffic such as large supermarkets, shopping malls, office buildings, hospitals, and schools. They can prevent unauthorized personnel from entering the interior and also enable people inside to escape safely in emergencies such as fires. To facilitate opening, most existing escape locks adopt an escape push rod structure, that is, the lock is opened and closed by rotating the push rod.

[0003] In existing technologies, escape push rods mostly unlock by rotating the push rod, which in turn drives the lock body structure inside the escape lock. However, existing push rods can only rotate in one direction to unlock. Escape push rods that rotate upwards to unlock are very inconvenient to use when installed at high places, and escape push rods that rotate downwards to unlock are very inconvenient to use when installed at low places. Therefore, existing escape push rods are limited by the direction of rotation, have great limitations in installation location, and have poor applicability. Summary of the Invention

[0004] To reduce the limitations of installation location and improve applicability, this application provides a push-pull escape door lock and an escape door.

[0005] The push-pull escape door lock provided in this application adopts the following technical solution: A push-pull escape door lock and escape door include a main lock body, a push rod, and a latch. The latch is rotatably mounted on the main lock body and has a reset component for resetting the latch. The main lock body has a rotating block connected to the push rod. A drive rod is rotatably mounted inside the main lock body. Both ends of the rotating block have abutment blocks that can abut against the drive rod. A transmission assembly is provided between the drive rod and the latch for driving the latch to rotate. The rotating block has a first torsion spring, one end of which abuts against the rotating block and the other end of which abuts against the main lock body. The main lock body has a limit component for limiting the rotating block. The main lock body also has a reset component for resetting the drive rod.

[0006] By adopting the above technical solution, the rotating block is driven to rotate by the rotation of the push rod, which compresses the first torsion spring. This causes the push rod to abut against the block and drive the drive rod to rotate. The transmission assembly then drives the lock tongue to rotate, thus unlocking the lock. The lock tongue is reset by the reset component to lock the lock. At the same time, the reset of the first torsion spring drives the rotating block and the push rod to rotate and reset. Both ends of the rotating block are provided with abutment blocks, so that the push rod can be rotated upwards or downwards to unlock the lock. The limiting component can limit the rotation of the rotating block, so that after the limit is reached, the push rod can only rotate in one direction and is kept stable by the limit abutment. The main lock body can be installed on the door surface, making it suitable for narrow doors and thus improving its applicability. Depending on the installation location, the limiting component can be used to adjust the limit of the rotating block, causing the push rod to rotate in one direction to unlock. This allows the escape push rod to be used in that location. For example, when it needs to be installed in a higher position, the limiting component can be adjusted to keep the rotating rod in a higher position for easy downward rotation to unlock, making it convenient to use after installation. When it needs to be installed in a lower position, the limiting component can be adjusted to keep the rotating rod in a lower position for easy upward rotation to unlock, making it convenient to use after installation. This reduces the limitations of the escape push rod's installation location and improves its applicability.

[0007] Preferably, the rotating block is rotatably provided with a connecting block, the abutting block is provided on the connecting block, the rotating block is provided with an assembly block, the connecting block is provided with an assembly groove, and the assembly block is movably provided in the assembly groove and can abut against the inner wall of the assembly groove.

[0008] By adopting the above technical solution, under normal circumstances, the assembly block abuts against the inner wall of the assembly slot, and the push rod remains stationary, without shaking and affecting use. When unlocking, rotating the push rod drives the rotating block to rotate, thereby causing the assembly block to abut against the inside of the assembly slot and push the connecting block to rotate, thus driving the abutment block to rotate and unlocking. If the push rod is rotated in the opposite direction, the assembly block will first rotate a distance in the assembly slot before driving the connecting block to rotate, thereby reducing the probability of the connecting block contacting the limiting component, reducing the possibility of wear and damage caused by the connecting block contacting the limiting component due to incorrect rotation of the push rod, and improving durability.

[0009] Preferably, the limiting component includes a limiting plate and a limiting block. The limiting block is rotatably disposed within the main lock body. The limiting plate is disposed on the limiting block and can abut against the connecting block. The main lock body is rotatably provided with an adjusting block. The adjusting block is provided with an adjusting rod that can abut against the limiting plate. The adjusting block passes through the main lock body. The limiting block is provided with a counterweight.

[0010] By adopting the above technical solution, the limiting plate is used to abut against the connecting block to limit the movement, so that the installed push rod can only rotate in one direction to unlock. At the same time, the limiting block is rotatably set on the main lock body. The limiting block can be rotated by the adjustment component, which in turn moves the limiting plate to release the limitation. At this time, the connecting block can be rotated to adjust the rotation direction of the push rod.

[0011] Preferably, the adjustment assembly includes an adjustment block and an adjustment rod. The adjustment block is rotatably mounted on the main lock body and passes through the main lock body. The adjustment rod is connected to the adjustment block and can abut against the limiting plate.

[0012] By adopting the above technical solution, when it is necessary to adjust the rotation direction of the push rod, the adjustment block is rotated to drive the adjustment rod to move, thereby pushing the limit plate to move so that the limit plate no longer blocks the connecting block. At this time, the push rod can be rotated to drive the rotating block and the connecting block to rotate, thereby changing the rotation direction of the push rod to unlock, thus achieving adjustment. The operation is simple and convenient. When the adjustment is completed, the adjustment block is rotated to drive the adjustment rod to move. Under the gravity of the counterweight, the adjustment block rotates, thereby driving the limit plate to move and reset.

[0013] Preferably, the adjusting block is provided with an adjusting groove on one side of the main lock body.

[0014] By adopting the above technical solution and setting the adjustment groove, the rotation of the adjustment block is facilitated, the adjustment of the limit component is improved, and the rotation of the push rod in the unlocking direction is improved.

[0015] Preferably, the reset assembly includes a reset shaft, a reset plate, and a reset torsion spring. The reset shaft is rotatably mounted in the main lock body. The reset plate is mounted on the reset shaft and connected to the drive rod. The reset torsion spring is sleeved on the reset shaft, with one end of the reset torsion spring abutting against the drive rod and the other end of the reset torsion spring abutting against the reset plate.

[0016] By adopting the above technical solution, when the push rod is rotated to unlock, the push rod drives the rotating block to rotate, and the abutment block on the rotating block pushes the drive rod to rotate. The rotation of the drive rod drives the reset shaft to rotate through the reset plate and compresses the reset torsion spring. When the push rod is released, the reset spring returns to its original state and drives the reset shaft to rotate. It then drives the drive rod to rotate and reset through the reset plate. The drive rod automatically resets, thereby driving the lock tongue to rotate through the transmission component to achieve locking. The operation is simple and convenient.

[0017] Preferably, the transmission assembly includes a transmission plate, a transmission rod, and a first transmission block. The transmission plate is rotatably disposed within the main lock body. The transmission plate is provided with a drive groove, and the drive rod is inserted into the drive groove. The transmission plate is connected to the transmission rod. One end of the first transmission block is rotatably connected to the transmission rod, and the other end of the transmission block is rotatably connected to the lock tongue.

[0018] By adopting the above technical solution, when the drive rod rotates, it abuts against the drive groove, causing the drive rod to rotate and thus drive the transmission plate to move, which in turn drives the first transmission block to pull the lock tongue to rotate, thereby realizing transmission. The operation is simple and convenient.

[0019] Preferably, the system also includes a sub-lock body, the lock tongue is rotatably mounted on the sub-lock body, the transmission rod connects the main lock body and the sub-lock body, and the transmission assembly further includes a second transmission block, the first transmission block is slidably mounted in the sub-lock body, the second transmission block is rotatably mounted in the sub-lock body, one end of the second transmission block is rotatably connected to the transmission rod, and the other end of the second transmission block is rotatably connected to the first transmission block.

[0020] By adopting the above technical solution, the locking tongue is set on the sub-lock body, thereby realizing the layout of the top and bottom locks and improving the stability of the locking. When the drive rod rotates, it drives the transmission plate to rotate, the transmission plate drives the transmission rod to move, thereby driving the second transmission block to move, the second transmission block drives the first transmission block to move, thereby driving the locking tongue to move. The operation is simple and convenient, improving the ease of use. The main lock body and the sub-lock body can be installed on the door surface, so that the push-pull escape door lock can be used for narrow doors, thereby improving its applicability.

[0021] Preferably, the reset element is a second torsion spring, the latch is rotatably mounted on the sub-lock body via a rotating shaft, the second torsion spring is sleeved on the latch rotating shaft, one end of the second torsion spring abuts against the latch, and the other end of the second torsion spring abuts against the sub-lock body.

[0022] By adopting the above technical solution, when the push rod rotates, it drives the lock tongue to rotate to unlock, while simultaneously compressing the second torsion spring. When the push rod is released and the pressure is lost, the second torsion spring returns to its original position and drives the lock tongue to rotate and reset, thus locking. The operation is simple and convenient.

[0023] The sliding escape door provided in this application adopts the following technical solution: The device includes a door frame and a door body. The main lock body is mounted on the door body. The door frame is provided with a mounting block, and the mounting block is provided with a mounting groove. The lock tongue can be inserted into the mounting groove.

[0024] By adopting the above technical solution, the lock tongue is inserted into the mounting groove to complete the locking, and the main lock body can be installed on the door surface, so that the push-pull escape door lock can be used for narrow doors, and the door body can be set to a narrower shape, thereby improving applicability and saving materials.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a main lock body, push rod, bolt, rotating block, drive rod, abutment block, transmission assembly, and reset component, when unlocking, rotating the push rod on the main lock body drives the rotating block to rotate, which in turn drives the drive rod to rotate through the abutment block. The drive rod drives the bolt to rotate through the transmission assembly to unlock. At the same time, the bolt can be reset by the reset component to lock. The operation is simple and convenient, improving the ease of use. 2. By setting a limit plate, a limit block, an adjusting block, an adjusting rod, and a counterweight, both ends of the rotating block are equipped with abutment blocks that can push the drive rod to rotate. Therefore, the push rod can be rotated to either side to unlock. At the same time, in order to ensure the stability of the push rod rotation during use, depending on the installation position, rotating the adjusting block drives the adjusting rod to rotate, thereby pushing the limit plate to rotate. At this time, the push rod can be rotated to drive the rotating block to rotate, thereby changing the position of the push rod and changing the rotation direction of the push rod according to the installation position. Then, rotating the adjusting block drives the adjusting rod to the limit position. At this time, under the influence of the counterweight, the limit block rotates and drives the limit plate to move below the rotating block to limit it, thereby limiting the push rod rotating block after the rotation direction is adjusted, thus ensuring the stability of the push rod after the rotation direction is adjusted. 3. By setting a reset shaft, a reset plate, and a reset torsion spring, when the drive rod rotates, the drive rod drives the reset shaft to rotate through the reset plate and compresses the reset torsion spring. When the push rod is released, the reset torsion spring returns to its original state and drives the reset shaft to rotate, thereby driving the drive rod to rotate and reset through the reset plate, improving the convenience of use. Attached Figure Description

[0026] Figure 1 This is an overall schematic diagram of a push-pull escape door lock and an escape door provided in an embodiment of this application.

[0027] Figure 2 It is a schematic diagram used to illustrate the internal structure of the main lock body and the sub-lock bodies.

[0028] Figure 3 It is a cross-sectional schematic diagram used to illustrate the connection relationship between the rotating block and the connecting block.

[0029] Figure 4 This is a schematic diagram used to illustrate the structure of the limiting component.

[0030] Explanation of reference numerals in the attached drawings: 1. Main lock body; 11. Drive rod; 2. Push rod; 21. Auxiliary rod; 3. Rotating block; 31. Connecting block; 311. Assembly slot; 32. Assembly block; 33. Abutment block; 34. First torsion spring; 4. Sub-lock body; 41. Lock tongue; 411. Second torsion spring; 5. Limiting assembly; 51. Limiting block; 511. Counterweight block; 52. Limiting plate; 53. Adjusting block; 531. Extension block; 532. Adjusting slot; 54. Adjusting rod; 55. Adjusting component; 6. Reset assembly; 61. Reset shaft; 62. Reset plate; 63. Reset torsion spring; 7. Transmission assembly; 71. Transmission plate; 711. Drive slot; 72. Transmission rod; 73. First transmission block; 74. Second transmission block; 8. Door body; 9. Door frame; 91. Mounting block; 911. Mounting slot. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses a push-pull escape door lock and an escape door. (Refer to...) Figures 1 to 4 The escape door includes a door body 8 and a door frame 9. The door body 8 is rotatably mounted inside the door frame 9 via a pivot. The push-pull escape door lock includes a main lock body 1, a sub-lock body 4, and a push rod 2. The main lock body 1 and the sub-lock body 4 are both fixed to the back side of the door body 8 with bolts. An mounting block 91 is fixedly mounted on the back side of the door frame, and the mounting block 91 has a mounting groove 911. The sub-lock bodies 4 are located on both sides of the main lock body 1. Auxiliary rods 21 are fixedly mounted at both ends of the push rod 2, and each auxiliary rod 21 is rotatably connected to one of the main lock bodies 1. A latch 41 that can be inserted into the mounting groove 911 is rotatably mounted on the end of the sub-lock body 4 away from the main lock body 1 via a pivot. A second torsion spring 411 is sleeved on the pivot of the latch 41 as a reset element. The two ends of the second torsion spring 411 respectively abut against the latch 41 and the locking rod on the sub-lock body 4. The main lock body 1 is rotatably equipped with a cylindrical rotating block 3, which is fixedly connected to the auxiliary rod 21 by bolts. A first torsion spring 34 is sleeved on the rotating block 3, and the protrusions on the rotating block 3 and the main lock body 1 are inserted between the two ends of the first torsion spring 34. A connecting block 31 is rotatably sleeved on the rotating block 3. Both the connecting block 31 and the first torsion spring 34 are located inside the main lock body 1. Abutment blocks 33 are fixedly installed at both ends of the connecting block 31. An assembly block 32 is fixedly installed on the outer wall of the rotating block 3. An assembly groove 311 is provided on the inner wall of the connecting block 31. The assembly block 32 is movably installed in the assembly groove 311 and can abut against the inner wall of the assembly groove 311. A drive rod 11 is rotatably installed inside the main lock body 1, which can abut against the abutment block 33. The main lock body 1 is equipped with a reset assembly 6 for resetting the drive rod 11 and a limiting assembly 5 for limiting the rotating block 3. A transmission assembly 7 for driving the lock tongue 41 to rotate is provided between the lock tongue 41 and the drive rod 11.

[0033] Reference Figures 1 to 4When unlocking is required, rotating the push rod 2 causes the auxiliary rod 21 to rotate the rotating block 3, which in turn moves the connecting block 31 and the abutment block 33. This pushes the drive rod 11 and, through the transmission assembly 7, causes the bolt 41 to rotate and exit the mounting slot 911, thus unlocking. Simultaneously, through the second torsion spring 411, the reset assembly 6, and the first torsion spring 34, after releasing the push rod 2, the bolt 41 resets and re-enters the mounting slot 911, completing the locking process. The connecting block 31 has abutment blocks 33 at both ends to enable bidirectional unlocking. Simultaneously, the limiting assembly 5 can adjust the posture and rotation direction of the push rod 2 according to the installation position, thus limiting its stability. This escape push rod allows for adjustment of the rotation direction of the push rod 2 according to the installation position, reducing limitations on installation location and improving applicability.

[0034] To improve ease of use, refer to Figure 2 and Figure 4 The limiting component 5 includes a limiting plate 52 and a limiting block 51. A pair of limiting blocks 51 are rotatably disposed within the main lock body 1. The limiting plate 52 is fixedly connected between the limiting blocks 51 and is positioned below the connecting block 31, abutting against the connecting block 31. A counterweight 511 is integrally fixedly disposed at the end of the limiting block 51 away from the limiting plate 52. The main lock body 1 is provided with an adjusting component 55 for adjusting the limiting plate 52. The adjusting component 55 includes an adjusting block 53 and an adjusting rod 54. The adjusting block 53 is rotatably disposed on the main lock body 1 and penetrates through the main lock body 1. An extension block 531 is fixedly disposed at the end of the adjusting block 53 inside the main lock body 1. The adjusting rod 54 is fixedly disposed at the end of the extension block 531 away from the adjusting block 53. The side of the adjusting rod 54 connected to the extension block 531 abuts against the limiting plate 52. A cross-shaped adjusting groove 532 is provided through the side of the adjusting block 53 outside the main lock body 1. Depending on the installation position, the adjusting block 53 is rotated via the adjusting groove 532, which in turn drives the limiting plate 52 and the limiting block 51 to rotate via the adjusting rod 54. At this time, the pushing rod 2 can be rotated, which drives the connecting block 31 to rotate via the rotating block 3, thereby adjusting the position and rotation direction of the pushing rod 2 to meet the requirements of the installation position. After adjusting the pushing rod 2, rotating the adjusting block 53 moves the adjusting rod 54. At this time, under the gravity of the counterweight 511, the limiting block 51 rotates, causing the limiting plate 52 to return to below the connecting block 31 for limiting. The operation is simple and convenient.

[0035] To improve the ease of resetting, refer to Figure 2The reset assembly 6 includes a reset shaft 61, a reset plate 62, and a reset torsion spring 63. The reset shaft 61 is rotatably mounted inside the main lock body 1, and its length direction is consistent with the length direction of the drive rod 11. The reset plate 62 is C-shaped and fixedly connects the reset shaft 61 and the drive rod 11. The reset torsion spring 63 is sleeved on the reset shaft 61, with both ends of the reset torsion spring 63 pressing against the middle part of the reset rod and the reset plate 62. When the abutment block 33 drives the drive rod 11 to rotate, the drive rod 11 drives the reset shaft 61 to rotate through the reset plate 62 and compresses the reset torsion spring 63. When the push rod 2 is released, the reset torsion spring 63 returns to its original position, driving the reset shaft 61 to rotate, and then drives the drive shaft to move to its original position through the reset plate 62 to complete the reset. The operation is simple, convenient, and automatic, improving the ease of reset.

[0036] To improve the convenience of transmission, refer to Figure 2 The transmission assembly 7 includes a transmission plate 71, a transmission rod 72, a first transmission block 73, and a second transmission block 74. The transmission plate 71 is rotatably mounted inside the main lock body 1 via a rotating shaft. A drive groove 711 is provided through the transmission plate 71, and each end of the drive rod 11 is inserted into a drive groove 711 of the transmission plate 71. The second transmission block 74 is slidably mounted inside the sub-lock body 4. The transmission rod 72 is located between the main lock body 1 and the sub-lock body 4. One end of the transmission rod 72 is rotatably connected to the transmission plate 71, and the other end is rotatably connected to the end of the second transmission block 74 away from the latch 41. The first transmission block 73 is rotatably mounted inside the sub-lock body 4. One end of the first transmission block 73 is rotatably connected to the second transmission block 74 via a rotating shaft, and the other end is rotatably connected to the latch 41 via a rotating shaft. When the drive rod 11 moves, the drive rod 11 drives the transmission plate 71 to rotate, thereby pulling the transmission rod 72 to drive the second transmission block 74 to move. The movement of the second transmission block 74 drives the lock tongue 41 to rotate through the first transmission block 73 to unlock. The transmission is simple and convenient, improving the ease of use.

[0037] The implementation principle of a push-pull escape door lock and escape door according to the present application embodiment is as follows: By setting abutment blocks 33 at both ends of the connecting block 31, the push rod 2 can be unlocked by rotating in both directions. Before installation, according to the required installation position, the adjusting block 53 is rotated through the adjusting groove 532, and the adjusting rod 54 is rotated through the extension block 531, thereby pushing the limiting plate 52 to drive the limiting block 51 to rotate, so that the limiting plate 52 moves away from the bottom of the connecting block 31 and releases the limiting of the connecting block 31. At this time, the push rod 2 can be rotated to drive the connecting block 31 to rotate freely in the main lock body 1, thereby adjusting the position of the push rod 2. After the adjustment is completed, the adjusting block 53 is rotated so that the adjusting rod 54 returns to the original limiting position. Under the action of the counterweight block 511, the limiting block 51 is driven to rotate, thereby driving the limiting plate 52 back to the bottom of the connecting block 31 for limiting. At the same time, the assembly block 32 and the inner wall of the assembly groove 311 are pressed together, and the abutment block 33 abuts against the drive rod 11, so that the push rod 2 remains stable when not in use. Depending on the installation location, when installed at a higher position, rotate the push rod 2 to hold it in the higher position, and then pull the push rod 2 downwards to unlock. When installed at a lower position, rotate the push rod 2 to the lower position, and then pull the push rod 2 upwards to unlock. Adjusting the direction of rotation of the push rod 2 to unlock according to the installation location reduces the limitations of the installation location, thereby improving applicability.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A push-pull escape door lock, comprising a main lock body (1), a push rod (2), and a bolt (41), wherein the bolt (41) is rotatably mounted on the main lock body (1), and the bolt (41) is provided with a reset member for resetting the bolt (41), characterized in that: The main lock body (1) is rotatably provided with a rotating block (3), which is connected to a push rod (2). A drive rod (11) is rotatably provided inside the main lock body (1). Both ends of the rotating block (3) are provided with abutting blocks (33) that can abut against the drive rod (11). A transmission assembly (7) is provided between the drive rod (11) and the lock tongue (41). The transmission assembly (7) is used to drive the lock tongue (41) to rotate. The rotating block (3) is provided with a first torsion spring (34). One end of the first torsion spring (34) abuts against the rotating block (3), and the other end of the first torsion spring (34) abuts against the main lock body (1). The main lock body (1) is provided with a limit assembly (5). The limit assembly (5) is used to limit the rotating block (3). The main lock body (1) is provided with a reset assembly (6). The reset assembly (6) is used to reset the drive rod (11).

2. A push-pull escape door lock according to claim 1, characterized in that: The rotating block (3) is rotatably provided with a connecting block (31), the abutting block (33) is provided on the connecting block (31), the rotating block (3) is provided with an assembly block (32), the connecting block (31) is provided with an assembly groove (311), and the assembly block (32) is movably provided in the assembly groove (311) and can abut against the inner wall of the assembly groove (311).

3. A push-pull escape door lock according to claim 2, characterized in that: The limiting component (5) includes a limiting plate (52) and a limiting block (51). The limiting block (51) is rotatably disposed inside the main lock body (1). The limiting plate (52) is disposed on the limiting block (51) and can abut against the connecting block (31). The limiting block (51) is provided with a counterweight (511). The main lock body is provided with an adjusting component (55). The adjusting component is used to adjust the limiting plate (52).

4. A push-pull escape door lock according to claim 3, characterized in that: The adjustment assembly (55) includes an adjustment block (53) and an adjustment rod (54). The adjustment block (53) is rotatably mounted on the main lock body (1) and passes through the main lock body (1). The adjustment rod (54) is connected to the adjustment block (53) and can abut against the limiting plate (52).

5. A push-pull escape door lock according to claim 4, characterized in that: The adjusting block (53) is provided with an adjusting groove (532) on one side outside the main lock body (1).

6. A push-pull escape door lock according to claim 1, characterized in that: The reset assembly (6) includes a reset shaft (61), a reset plate (62), and a reset torsion spring (63). The reset shaft (61) is rotatably disposed inside the main lock body (1). The reset plate (62) is disposed on the reset shaft (61) and connected to the drive rod (11). The reset torsion spring (63) is sleeved on the reset shaft (61). One end of the reset torsion spring (63) abuts against the drive rod (11), and the other end of the reset torsion spring (63) abuts against the reset plate (62).

7. A push-pull escape door lock according to claim 1, characterized in that: The transmission assembly (7) includes a transmission plate (71), a transmission rod (72), and a first transmission block (73). The transmission plate (71) is rotatably disposed inside the main lock body (1). The transmission plate (71) is provided with a drive groove (711). The drive rod (11) is inserted into the drive groove (711). The transmission plate (71) is rotatably connected to the transmission rod (72). One end of the first transmission block (73) is rotatably connected to the transmission rod (72), and the other end of the transmission block is rotatably connected to the lock tongue (41).

8. A push-pull escape door lock according to claim 7, characterized in that: It also includes a sub-lock body (4), the locking tongue (41) is rotatably mounted on the sub-lock body (4), the transmission rod (72) connects the main lock body (1) and the sub-lock body (4), the transmission assembly (7) also includes a second transmission block (74), the first transmission block (73) is slidably mounted in the sub-lock body (4), the second transmission block (74) is rotatably mounted in the sub-lock body (4), one end of the second transmission block (74) is rotatably connected to the transmission rod (72), and the other end of the second transmission block (74) is rotatably connected to the first transmission block (73).

9. A push-pull escape door lock according to claim 7, characterized in that: The reset component is a second torsion spring (411). The latch (41) is rotatably mounted on the sub-lock body (4) via a rotating shaft. The second torsion spring (411) is sleeved on the rotating shaft of the latch (41). One end of the second torsion spring (411) abuts against the latch (41), and the other end of the second torsion spring (411) abuts against the sub-lock body (4).

10. An escape door, characterized in that, The push-pull escape door lock as described in claim 1 also includes a door frame (9) and a door body (8), the main lock body (1) is disposed on the door body (8), the door frame (9) is provided with a mounting block (91), the mounting block (91) is provided with a mounting groove (911), and the lock tongue (41) can be inserted into the mounting groove (911).

Images