Escape lock

Abstract

The utility model discloses an escape lock which comprises a bottom plate, a connecting assembly and a driving assembly. The connecting assembly comprises a first pulling block which is used for being connected with a lock head of the safety door. The driving assembly comprises a driving seat, a drawing piece and a second pulling block, the drawing piece is used for driving the driving seat to slide, the second pulling block is embedded into the safety door to be connected with the lock cylinder, and the second pulling block rotates to drive the driving seat to slide; the driving seat is provided with an upper groove and a lower groove, the second pulling block is provided with a first convex part, the first convex part is in clamping transmission with the upper groove or the lower groove, the first convex part is in clamping transmission with the upper groove so that the first pulling block can rotate in the forward direction, and the first convex part is in clamping transmission with the lower groove so that the first pulling block can rotate in the reverse direction. The escape lock disclosed by the utility model can be matched with a safety door with a left opening door and a safety door with a right opening door, so that the unlocking rotation directions of the escape lock on the safety door with the left opening door and the safety door with the right opening door are the same, and the consistency of unlocking operation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, and particularly relates to an escape lock. Background Art

[0002] An escape lock, also called a fire escape lock, as the name implies, is a lock that can ensure safe escape through the safety door at the safe exit of the fire escape passage in an emergency. It also has the function of security protection.

[0003] The escape lock can prevent unauthorized entry of outsiders and enable internal personnel to safely escape in case of emergencies such as fires.

[0004] For the security protection function, the existing escape locks generally set a lock core. Outsiders use a key to unlock the door outside the safe door, and the key drives the lock head to unlock.

[0005] However, the safe door can be divided into a left-opening safe door and a right-opening safe door according to the opening direction. When the existing escape lock adapted to the left-opening safe door is used on the right-opening safe door, the escape lock needs to be rotated 180°, which will cause the rotation direction of key unlocking to be different and cannot ensure the consistency of unlocking operations. Content of the Utility Model

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an escape lock, which can be adapted to both left-opening and right-opening safe doors, so that the unlocking rotation directions of the escape lock on the left-opening and right-opening safe doors are the same, ensuring the consistency of unlocking operations.

[0007] An escape lock according to an embodiment of the utility model includes a bottom plate, a connection component and a driving component. The bottom plate is installed on the inner side of the safe door; the connection component includes a first pulling block, the first pulling block is slidably arranged on the bottom plate, and the first pulling block is used to connect the lock head of the safe door; the driving component includes a driving seat, a pulling member and a second pulling block. The driving seat is horizontally slidably arranged on the bottom plate, the pulling member is located on the inner side of the safe door, the pulling member is used to drive the driving seat to slide, the second pulling block is rotatably arranged on the bottom plate, the second pulling block is embedded in the safe door to connect the lock core, the second pulling block rotates to drive the driving seat to slide, and at least one of the pulling member and the second pulling block drives the driving seat to slide to drive the first pulling block to unlock the lock head; the driving seat has an upper groove and a lower groove, the second pulling block is located between the upper groove and the lower groove, the second pulling block has a first convex portion, the first convex portion is engaged and transmitted with the upper groove or the lower groove, the first convex portion is engaged and transmitted with the upper groove to make the first pulling block rotate forward, and the first convex portion is engaged and transmitted with the lower groove to make the first pulling block rotate backward.

[0008] An escape lock according to an embodiment of the present utility model has at least the following beneficial effects:

[0009] 1. By providing a bottom plate in the present utility model, the bottom plate is installed on the inner side of the safety door. Thus, it is convenient to install the escape lock on the safety door, and the bottom plate is installed on the inner side of the installation door, avoiding removing the escape lock from the outside of the safety door. Furthermore, the escape lock has an anti-theft effect.

[0010] 2. By providing a connection component in the present utility model, the connection component includes a first pulling block. The first pulling block is slidably arranged on the bottom plate, and the first pulling block is used to connect the lock head of the safety door. Thus, it is convenient for the escape lock to drive the lock head of the safety door to lock or unlock by driving the first pulling block.

[0011] 3. By providing a driving component in the present utility model, the driving component includes a driving seat, a pulling member, and a second pulling block. The driving seat is horizontally slidably arranged on the bottom plate. The pulling member is located on the inner side of the safety door, and the pulling member is used to drive the driving seat to slide. The second pulling block is rotatably arranged on the bottom plate, and the second pulling block is embedded in the safety door to connect the lock core. The second pulling block rotates to drive the driving seat to slide. At least one of the pulling member and the second pulling block drives the driving seat to slide to drive the first pulling block to unlock the lock head. It can be understood that the pulling member is located on the inner side of the safety door, and the user can drive the driving seat to slide by pulling the pulling member from the inner side of the safety door, so that the driving seat drives the first pulling block to unlock the lock head. Thus, internal personnel can quickly unlock the safety door from the inner side of the safety door and escape from danger in case of an emergency. In addition, the second pulling block is rotatably arranged on the bottom plate, and the second pulling block is embedded in the safety door to connect the lock core, so that external personnel can drive the second pulling block to drive the driving seat to slide by using a key to rotate the lock core, realizing the unlocking of the lock head. Thus, external personnel can only unlock the lock head by driving with a key, and the escape lock has the function of preventing unauthorized entry of outsiders into the interior.

[0012] 4. By providing an upper groove and a lower groove on the driving seat in the present utility model, the second pulling block is located between the upper groove and the lower groove. The second pulling block has a first convex portion, and the first convex portion is engaged and transmitted with the upper groove or the lower groove. The engagement and transmission of the first convex portion with the upper groove causes the forward rotation of the first pulling block, and the engagement and transmission of the first convex portion with the lower groove causes the reverse rotation of the first pulling block. It can be understood that when the first convex portion is engaged and transmitted with the upper groove, the forward rotation of the first pulling block can drive the driving seat to slide to drive the lock head to unlock. When the first convex portion is engaged and transmitted with the lower groove, the reverse rotation of the first pulling block can drive the driving seat to slide to drive the lock head to unlock. Thus, the escape lock can be adapted to be installed on the safety doors of left-opening and right-opening doors by adjusting the engagement of the first convex portion with the upper groove or the lower groove, so that the unlocking rotation directions of the escape lock on the safety doors of left-opening and right-opening doors are the same, ensuring the consistency of the unlocking operation.

[0013] An escape lock according to an embodiment of the present utility model, two connecting arms are provided at one end of the driving seat along the horizontal direction, one of the connecting arms extends obliquely upward, the other connecting arm extends obliquely downward, the upper groove and the lower groove are respectively arranged on the two connecting arms, and the second pulling block is arranged between the two connecting arms.

[0014] An escape lock according to an embodiment of the present utility model, the second pulling block has two first convex parts, the two first convex parts are arranged circumferentially along the rotation axis of the second pulling block, one of the first convex parts is used for clamping the upper groove, and the other first convex part is used for clamping the lower groove.

[0015] An escape lock according to an embodiment of the present utility model, two guiding convex parts are provided at the bottom of the driving seat, two first sliding grooves are arranged on the bottom plate, and one of the first sliding grooves is matched with one of the guiding convex parts for guiding.

[0016] An escape lock according to an embodiment of the present utility model, a lock shell is fixedly installed on the bottom plate, the driving assembly further includes a pulling arm and a first spring, the pulling arm is connected to the driving seat, the first spring is arranged between the pulling arm and the lock shell, and the first spring is used to drive the driving seat to reset to lock the lock head.

[0017] An escape lock according to an embodiment of the present utility model, the lock shell is provided with a first pin shaft, the pulling arm is provided with a first waist-shaped hole extending along the sliding direction of the driving seat, the first waist-shaped hole accommodates the sliding of the first pin shaft, and both ends of the first waist-shaped hole are used for limiting the first pin shaft.

[0018] An escape lock according to an embodiment of the present utility model, a connecting shaft is arranged between the pulling arm and the driving seat, the connecting shaft penetrates through the pulling arm and the driving seat and connects the pulling arm and the driving seat, one end of the connecting shaft has a limiting shaft cap, the other end of the connecting shaft is clamped with a snap spring, the limiting shaft cap and the snap spring are used for limiting, the lock shell is provided with a second waist-shaped hole, the extending direction of the second waist-shaped hole is parallel to the extending direction of the first waist-shaped hole, and the first waist-shaped hole accommodates the sliding of the connecting shaft.

[0019] An escape lock according to an embodiment of the present utility model, the moving direction of the first pulling block is offset from the moving direction of the driving seat, the connecting component further includes a first swing arm, the first swing arm is hinged on the bottom plate, the driving seat is in transmission connection with the first swing arm and the first pulling block, the driving seat slides to drive the first swing arm to swing, and the first swing arm swings to drive the first pulling block to slide.

[0020] An escape lock according to an embodiment of the present invention, the first swing arm has a first transmission pin portion, the drive seat has a first transmission chute for accommodating the first transmission pin portion, the first swing arm further has a second transmission pin portion, and the first pull block has a second transmission chute for accommodating the second transmission pin portion.

[0021] An escape lock according to an embodiment of the present invention, there are two connection components, and the two connection components are respectively located on the upper and lower sides of the drive seat.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 Structural schematic diagram of an escape lock according to an embodiment of the present invention;

[0025] Figure 2 For Figure 1 Internal structural schematic diagram of an escape lock shown;

[0026] Figure 3 For Figure 2 Structural schematic diagram of an escape lock after removing the shell cover and the pull arm shown;

[0027] Figure 4 For Figure 1 Exploded view of parts shown.

[0028] Reference numerals: 100 - bottom plate, 110 - first pull block, 120 - drive seat, 130 - pulling member, 140 - second pull block, 150 - upper groove, 160 - lower groove, 170 - first convex portion, 180 - connecting arm, 190 - first chute, 200 - lock shell, 210 - pull arm, 220 - first spring, 230 - first pin shaft, 240 - first waist-shaped hole, 250 - connecting shaft, 260 - limit shaft cap, 270 - snap ring, 280 - second waist-shaped hole, 290 - first swing arm, 300 - first transmission pin portion, 310 - first transmission chute, 320 - second transmission pin portion, 330 - second transmission chute. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0030] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

[0031] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described, this is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed, connected and joined" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] A fire escape lock according to an embodiment of the present utility model will be described below with reference to the accompanying drawings.

[0034] Referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the present utility model aims to provide an embodiment of a fire escape lock.

[0035] In this embodiment, a fire escape lock mainly includes a bottom plate 100, a connection assembly and a drive assembly.

[0036] For the bottom plate 100, the bottom plate 100 is installed on the inner side of the safety door. Thus, it is convenient to install the fire escape lock on the safety door, and the bottom plate 100 is installed on the inner side of the installation door, avoiding removing the fire escape lock from the outside of the safety door. Furthermore, the fire escape lock has an anti-theft effect.

[0037] For the connecting component, the connecting component includes a first pulling block 110 which is slidably arranged on the bottom plate 100. The first pulling block 110 is used to connect the lock head of the safety door. Thus, it is convenient for the escape lock to drive the lock head of the safety door to lock or unlock by driving the first pulling block 110.

[0038] Specifically, both sides of the first pulling block 110 have convex edges. Two oppositely arranged hooks are provided on the bottom plate 100. The two convex edges are respectively clamped with the two hooks to prevent detachment. Thus, the sliding of the first pulling block 110 on the bottom plate 100 is more stable. At the same time, the cooperation of the two hooks can guide the sliding of the first pulling block 110.

[0039] For the driving component, the driving component includes a driving seat 120, a pulling member 130 and a second pulling block 140. The driving seat 120 is horizontally slidably arranged on the bottom plate 100. The pulling member 130 is located inside the safety door. The pulling member 130 is used to drive the driving seat 120 to slide. The second pulling block 140 is rotatably arranged on the bottom plate 100. The second pulling block 140 is embedded in the safety door to connect the lock core. The second pulling block 140 rotates to drive the driving seat 120 to slide. At least one of the pulling member 130 and the second pulling block 140 drives the driving seat 120 to slide to drive the first pulling block 110 to unlock the lock head.

[0040] It can be understood that the pulling member 130 is located inside the safety door. The user can drive the driving seat 120 to slide by pulling the pulling member 130 from the inside of the safety door, so that the driving seat 120 drives the first pulling block 110 to unlock the lock head. Thus, the internal personnel can quickly unlock the safety door inside the safety door to escape from danger in case of emergency. In addition, the second pulling block 140 is rotatably arranged on the bottom plate 100. The second pulling block 140 is embedded in the safety door to connect the lock core, so that the external personnel can drive the second pulling block 140 to drive the driving seat 120 to slide by using a key to rotate the lock core to unlock the lock head. Thus, only the external personnel can drive the lock head to unlock by using a key, so that the escape lock has the function of preventing unauthorized entry of external personnel into the interior.

[0041] Further, the driving seat 120 has an upper groove 150 and a lower groove 160. The second pulling block 140 is located between the upper groove 150 and the lower groove 160. The second pulling block 140 has a first convex portion 170. The first convex portion 170 is in clamping transmission with the upper groove 150 or the lower groove 160. The first convex portion 170 is in clamping transmission with the upper groove 150 to make the first pulling block 110 rotate forward. The first convex portion 170 is in clamping transmission with the lower groove 160 to make the first pulling block 110 rotate reversely.

[0042] It can be understood that when the first convex part 170 is engaged with the upper groove 150 for transmission, the forward rotation of the first pulling block 110 can drive the driving seat 120 to slide to drive the lock head to unlock. When the first convex part 170 is engaged with the lower groove 160 for transmission, the reverse rotation of the first pulling block 110 can drive the driving seat 120 to slide to drive the lock head to unlock. Thus, the escape lock can be adapted to be installed on the safety doors of left-opening and right-opening doors by adjusting the engagement of the first convex part 170 with the upper groove 150 or the lower groove 160, so that the unlocking rotation directions of the escape lock on the safety doors of left-opening and right-opening doors are the same, ensuring the consistency of the unlocking operation.

[0043] In some specific embodiments, two connecting arms 180 are provided at one end of the driving seat 120 along the horizontal direction. One connecting arm 180 extends obliquely upward, and the other connecting arm 180 extends obliquely downward. The upper groove 150 and the lower groove 160 are respectively provided on the two connecting arms 180. The second pulling block 140 is provided between the two connecting arms 180. Thus, an avoidance space for the second pulling block 140 can be formed between the two connecting arms 180, and further, the positions of the driving seat 120 and the second pulling block 140 are prevented from interfering with each other.

[0044] In some specific embodiments, the second pulling block 140 has two first convex parts 170. The two first convex parts 170 are arranged circumferentially along the rotation axis of the second pulling block 140. One first convex part 170 is used for engaging with the upper groove 150, and the other first convex part 170 is used for engaging with the lower groove 160. Thus, when adjusting the cooperation between the second pulling block 140 and the upper groove 150 and the lower groove 160, the rotation angle of the second pulling block 140 can be reduced, and further, it is convenient to switch the cooperation between the second pulling block 140 and the upper hook groove and the lower groove 160.

[0045] It should be explained that the two first convex parts 170 cannot be simultaneously engaged with the upper groove 150 and the lower groove 160 respectively to avoid jamming of the driving seat 120 and the second block.

[0046] In some specific embodiments, two guiding convex parts are provided at the bottom of the driving seat 120, and two first sliding grooves 190 are provided on the bottom plate 100. One first sliding groove 190 is matched with one guiding convex part for guiding. Thus, the sliding of the driving seat 120 on the bottom plate 100 is made smoother.

[0047] In some specific embodiments, a lock case 200 is fixedly installed on the bottom plate 100. The driving assembly further includes a pulling arm 210 and a first spring 220. The pulling arm 210 is connected to the driving seat 120. The first spring 220 is arranged between the pulling arm 210 and the lock case 200. The first spring 220 is used to drive the driving seat 120 to reset to drive the lock head to lock. Thus, the first spring 220 can drive the lock head to automatically lock, and further, it is convenient to quickly lock the safety door.

[0048] Furthermore, the lock housing 200 is provided with a first pin shaft 230, and the pulling arm 210 is provided with a first waist hole 240 extending along the sliding direction of the driving seat 120. The first waist hole 240 accommodates the sliding of the first pin shaft 230, and the two ends of the first waist hole 240 are used to limit the first pin shaft 230, so that the first waist hole 240 can limit the moving distance of the pulling, and then, it is convenient to limit the driving distance of the first spring 220 driving the driving seat 120 to reset, so as to avoid the driving seat 120 moving too far when the first spring 220 drives the driving seat 120 to reset, thereby affecting the locking of the lock.

[0049] In some specific embodiments, a connecting shaft 250 is arranged between the pulling arm 210 and the driving seat 120, and the connecting shaft 250 passes through the pulling arm 210 and the driving seat 120 and connects the pulling arm 210 and the driving seat 120. One end of the connecting shaft 250 has a limiting shaft cap 260, and the other end of the connecting shaft 250 is clamped with a retaining spring 270. The limiting shaft cap 260 and the retaining spring 270 are used for limiting. The lock shell 200 is provided with a second waist hole 280, and the extension direction of the second waist hole 280 is parallel to the extension direction of the first waist hole 240. The first waist hole 240 accommodates the sliding of the connecting shaft 250, so that it is convenient to quickly disassemble the connecting shaft 250 by removing the retaining spring 270, which facilitates the installation and disassembly of the pulling arm 210 and the driving seat 120. At the same time, the second waist hole 280 can support and limit the connecting shaft 250, so that the pulling arm 210 is more stable.

[0050] In some specific embodiments, the moving direction of the first pull block 110 is offset from the moving direction of the drive seat 120, and the connecting assembly also includes a first swing arm 290, which is hinged on the base plate 100, and the drive seat 120 is transmission-connected to the first swing arm 290 and the first pull block 110, and the drive seat 120 slides to drive the first swing arm 290 to swing, and the first swing arm 290 swings to drive the first pull block 110 to slide. It should be explained that the offset setting of the moving direction of the first pull block 110 and the moving direction of the drive seat 120 means that the moving direction of the first pull block 110 is not parallel to the moving direction of the drive seat 120, thereby facilitating the change of the displacement transmission direction between the drive seat 120 and the first pull block 110 through the first swing arm 290, thereby reducing the limitation of the sliding direction of the first pull block 110.

[0051] Furthermore, the first swing arm 290 has a first transmission pin portion 300, the drive seat 120 has a first transmission slot 310 for accommodating the first transmission pin portion 300, the first swing arm 290 also has a second transmission pin portion 320, and the first pull block 110 has a second transmission slot 330 for accommodating the second transmission pin portion 320, thereby preventing the first swing arm 290 and the drive seat 120, as well as the first swing arm 290 and the first pull block 110 from getting stuck when the first swing arm 290 swings.

[0052] In some specific embodiments, two connecting components are provided, and the two connecting components are respectively located on the upper and lower sides of the driving seat 120. Thus, the escape lock can drive two lock heads to lock and unlock simultaneously, and further, the safety door is made more firm, improving the security function.

[0053] In some specific embodiments, an outer cover is further installed on the bottom plate 100. The outer cover is used for covering and dust-proofing, so as to prevent dust and sundries from entering the escape lock and affecting the service life of the escape lock.

[0054] In the description of this specification, the description with reference to terms such as "one embodiment, some embodiments, illustrative embodiments, examples, specific examples or some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The embodiments of the present invention have been described in detail above with reference to the drawings, but the present invention is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art to which the present invention pertains.

Claims

1. An escape lock, characterized in that, Including: A bottom plate (100), installed on the inner side of the security door; A connection component, including a first pulling block (110), the first pulling block (110) is slidably arranged on the bottom plate (100), and the first pulling block (110) is used to connect the lock head of the security door; A driving component, including a driving seat (120), a pulling member (130) and a second pulling block (140), the driving seat (120) is horizontally slidably arranged on the bottom plate (100), the pulling member (130) is located on the inner side of the security door, the pulling member (130) is used to drive the driving seat (120) to slide, the second pulling block (140) is rotatably arranged on the bottom plate (100), the second pulling block (140) is embedded in the security door to connect the lock core, the second pulling block (140) rotates to drive the driving seat (120) to slide, and at least one of the pulling member (130) and the second pulling block (140) drives the driving seat (120) to slide to drive the first pulling block (110) to unlock the lock head; The driving seat (120) has an upper groove (150) and a lower groove (160), the second pulling block (140) is located between the upper groove (150) and the lower groove (160), the second pulling block (140) has a first convex portion (170), and the first convex portion (170) is engaged and transmitted with the upper groove (150) or the lower groove (160). The first convex portion (170) is engaged and transmitted with the upper groove (150) to make the first pulling block (110) rotate forward, and the first convex portion (170) is engaged and transmitted with the lower groove (160) to make the first pulling block (110) rotate backward.

2. The escape lock according to claim 1, characterized in that, One end of the driving seat (120) in the horizontal direction is provided with two connecting arms (180), one connecting arm (180) extends obliquely upward, and the other connecting arm (180) extends obliquely downward. The upper groove (150) and the lower groove (160) are respectively arranged on the two connecting arms (180), and the second pulling block (140) is arranged between the two connecting arms (180).

3. The escape lock according to claim 1, characterized in that, The second pulling block (140) has two first convex portions (170), and the two first convex portions (170) are arranged circumferentially along the rotation axis of the second pulling block (140). One first convex portion (170) is used to engage the upper groove (150), and the other first convex portion (170) is used to engage the lower groove (160).

4. The escape lock according to claim 1, characterized in that, Two guiding convex portions are arranged at the bottom of the driving seat (120), and two first sliding grooves (190) are arranged on the bottom plate (100), and one first sliding groove (190) is matched with one guiding convex portion for guiding.

5. The escape lock according to claim 1, characterized in that, A lock housing (200) is fixedly installed on the bottom plate (100). The driving assembly further includes a pulling arm (210) and a first spring (220). The pulling arm (210) is connected to the driving seat (120). The first spring (220) is arranged between the pulling arm (210) and the lock housing (200), and the first spring (220) is used to drive the driving seat (120) to reset so as to drive the lock head to lock.

6. The escape lock according to claim 5, characterized in that, The lock housing (200) is provided with a first pin shaft (230). The pulling arm (210) is provided with a first waist-shaped hole (240) extending along the sliding direction of the driving seat (120). The first waist-shaped hole (240) accommodates the sliding of the first pin shaft (230), and both ends of the first waist-shaped hole (240) are used to limit the first pin shaft (230).

7. An escape lock according to claim 6, characterized in that, A connecting shaft (250) is arranged between the pulling arm (210) and the driving seat (120). The connecting shaft (250) penetrates through the pulling arm (210) and the driving seat (120) and connects the pulling arm (210) and the driving seat (120). One end of the connecting shaft (250) has a limiting shaft cap (260), and a snap spring (270) is clamped at the other end of the connecting shaft (250). The limiting shaft cap (260) and the snap spring (270) are used for limiting. The lock housing (200) is provided with a second waist-shaped hole (280), and the extending direction of the second waist-shaped hole (280) is parallel to the extending direction of the first waist-shaped hole (240). The first waist-shaped hole (240) accommodates the sliding of the connecting shaft (250).

8. The escape lock according to claim 1, wherein The moving direction of the first pulling block (110) is offset from the moving direction of the driving seat (120). The connecting assembly further includes a first swing arm (290). The first swing arm (290) is hinged on the bottom plate (100). The driving seat (120) is in transmission connection with the first swing arm (290) and the first pulling block (110). The driving seat (120) slides to drive the first swing arm (290) to swing, and the first swing arm (290) swings to drive the first pulling block (110) to slide.

9. The escape lock according to claim 8, characterized in that, The first swing arm (290) has a first transmission pin part (300). The driving seat (120) has a first transmission sliding groove (310) for accommodating the first transmission pin part (300). The first swing arm (290) further has a second transmission pin part (320). The first pulling block (110) has a second transmission sliding groove (330) for accommodating the second transmission pin part (320).

10. An escape lock according to claim 8, characterized in that, There are two connecting assemblies, and the two connecting assemblies are respectively located on the upper and lower sides of the driving seat (120).

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