Escape lock device for a sliding door

Abstract

This invention relates to an escape lock device for sliding doors, comprising a lock body assembly and a lock shell, which are snap-fitted together. The lock body assembly includes a micro switch, a micro switch trigger button, a micro switch triggering device, a transmission rod, a lock cover, a steel ball, a steel ball base, an escape triggering device, a triggering device limiter, and a lock cylinder. The micro switch has a micro switch trigger button, which in turn has a micro switch triggering device. The micro switch triggering device contacts the steel ball via the transmission rod. The escape triggering device is located below the steel ball, with its lower end positioned below the triggering device limiter. The triggering device limiter is rotatably mounted on one side of the lock cylinder and contacts the lock cylinder. A connecting member passes through the cavity between the lock cover and the steel ball. This invention allows for escape by loosening the chain or by triggering the internal mechanism with a lever, and is highly versatile.

Description

Technical Field

[0001] This invention relates to the field of escape lock technology, and more particularly to an escape lock device for sliding doors. Background Technology

[0002] Sliding door structures include single-leaf sliding doors and double-leaf sliding doors. A single-leaf sliding door is a door that moves left and right along a guide rail to open and close. A double-leaf sliding door is a door with two leaves that slide in opposite directions along guide rails to open or close. Sliding door structures are used in food, pharmaceutical, workshop, freezing, and other fields, especially cold storage doors. Currently, cold storage doors are usually locked from the outside with bolts and padlocks to prevent theft. Because the door lock is on the outside, it is impossible to open the cold storage door from the inside. If someone is accidentally locked inside the cold storage, it will pose a life-threatening danger. To prevent people from being trapped inside the cold storage, it is necessary to be able to open the cold storage door from the inside.

[0003] Existing escape door locks have the following problems:

[0004] (1) The existing sliding door escape locks are not very versatile. Single-leaf sliding doors and double-leaf sliding doors require different types of escape locks. (2) The existing sliding door escape locks do not have built-in lock bodies and require the purchase of U-shaped padlocks. After the existing sliding door escape lock triggers the escape mechanism, it cannot release the trigger state of the micro switch, so the electrical control system cannot operate and the cold storage door can only be opened manually from inside the cold storage. (3) The existing sliding door escape locks are fixed to the door frame with exposed bolts, which has a poor anti-theft level. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an escape lock device for sliding doors. After the escape mechanism is triggered, the micro switch is deactivated, and the electronic control system resumes operation, which is reliable and stable.

[0006] The objective of this invention is achieved as follows:

[0007] An escape lock device for a sliding door is connected to a fixed device via a connector, the fixed device being mounted on the sliding door. It includes a lock body assembly and a lock shell, which are snap-fitted together. The lock body assembly includes a micro switch, a micro switch trigger button, a micro switch triggering device, a transmission rod, a lock cover, a steel ball, a steel ball base, an escape triggering device, a triggering device limiter, and a lock cylinder. The micro switch has a micro switch trigger button, which in turn has a micro switch triggering device. The micro switch triggering device contacts the steel ball via the transmission rod. The escape triggering device is located below the steel ball, with its lower end positioned below the triggering device limiter. The triggering device limiter is rotatably mounted on one side of the lock cylinder and contacts the lock cylinder. The connector passes through the cavity between the lock cover and the steel ball.

[0008] Furthermore, the lock assembly includes a base, on which a micro switch fixing seat, a bushing groove, a shaft hole groove, a limiting rotation groove, and a lock cylinder groove are arranged sequentially from top to bottom. A micro switch is installed on the micro switch fixing seat, and a micro switch triggering device is installed on the bushing groove. A steel ball base frame is provided on the left and right sides of the shaft hole groove, and an arc-shaped groove is provided on the upper and lower sides of the shaft hole groove for installing an escape triggering device. A steel ball base is installed on the steel ball base frame, a steel ball is installed on the steel ball base, and a lock cover is provided on the steel ball. A triggering device is limited on the limiting rotation groove, and a lock cylinder is installed on the lock cylinder groove.

[0009] Furthermore, the micro switch triggering device includes a trigger plate, which is inverted L-shaped. The top surface of the trigger plate is provided with an outwardly protruding switch triggering part. The bottom of the trigger plate is provided with a connecting bushing, which is engaged in a bushing groove. The trigger plate is hinged to the base through the connecting bushing via a rotating shaft. The top of the trigger plate is positioned above the micro switch triggering button and contacts the micro switch triggering button. A transmission rod is provided between the outer end of the switch triggering part and the steel ball, and the transmission rod contacts the steel ball.

[0010] Furthermore, the steel ball base includes a base body, and the center of the base body has a through steel ball hole for supporting the steel ball.

[0011] Furthermore, the escape triggering device is disposed between two steel ball base frames. The escape triggering device includes an escape triggering component body. A steel ball platform is provided at the top of the escape triggering component body. After the steel ball passes through the steel ball hole, it stands on the steel ball platform. An escape triggering part is provided at the lower end of the escape triggering component body for contacting the triggering device limit.

[0012] Furthermore, the lock cover includes a top cover and a back plate connected vertically. A clamping plate is provided on the left and right sides of the back plate. A frustum-shaped boss is provided on the bottom surface of the top cover. The bottom surface of the top cover is positioned above the steel ball, and the boss is used to press the steel ball.

[0013] Furthermore, the top surface of the steel ball base frame is provided with a top cover groove for locking the cover, and the bottom edge of the clamping plate is rounded to be locked in the top cover groove.

[0014] Furthermore, the limiting rotating groove is provided with a recessed turntable groove, and the center of the turntable groove is provided with a protruding rotating shaft; the limiting trigger device includes a rotating disk and a limiting ladder, the limiting ladder is set in the limiting rotating groove, the rotating disk is set in the turntable groove, the rotating disk is connected to the limiting ladder through a rotating step, the limiting ladder is in the shape of a rotating slide, the center of the rotating disk is provided with a rotating shaft hole, and the rotating shaft hole is sleeved on the rotating shaft; the lower end of the limiting ladder is set below the escape trigger part, and the higher end is set on one side of the lock cylinder, and the rotating step is provided with a contact part, which is close to the inner side of the higher end of the limiting ladder and is used to contact the lock cylinder.

[0015] Furthermore, the bottom of the escape triggering device is provided with a central shaft hole, the bottom of which is engaged with and protrudes from the shaft hole groove. The lock cover is provided with clamps on both sides, and a connecting hole is provided on the clamps. The middle of the steel ball base frame is provided with a through hole. The center lines of the central shaft hole, the connecting hole and the through hole are on the same horizontal line. The escape triggering device, the lock cover and the steel ball base frame are hinged by a through connecting shaft to realize the rotation of the escape triggering device.

[0016] Furthermore, the bottom of the central shaft hole of the escape trigger device extends out of the shaft hole groove, and the lock body assembly is provided with a tamping rod on the outer side of the corresponding position. When the tamping rod is pressed, the tamping rod hits the escape trigger device, causing the steel ball to fall down, the connecting piece disengages from the lock body, the micro switch trigger button is deactivated, and the electronic control system resumes operation.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention is highly versatile and can be used with both single-leaf and double-leaf sliding doors. The escape lock has a built-in lock body, eliminating the need for a U-shaped padlock; simply insert the key to lock and unlock. After the escape mechanism is triggered, the microswitch deactivates, and the electronic control system resumes operation. When the internal door lever triggers the escape mechanism, the steel ball automatically sinks, causing the chain to detach from the lock body, deactivating the microswitch, and resuming the electronic control system. The outer shell and internal mechanism are fixedly connected using plastic clips, eliminating external bolts and enhancing the lock's anti-theft level. The wiring is bottom-entry, preventing condensation from entering the lock body along the signal line. The escape lock employs a mechanical structure with a steel ball and chain triggering the microswitch; the chain has a two-section design, allowing for a wide range of movement. Made of engineering plastic, the escape lock has a smooth surface with no hard-to-clean areas, preventing mold and rust in low-temperature, high-humidity environments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the application of the present invention.

[0020] Figure 2 This is a schematic diagram of the lock housing of the present invention.

[0021] Figure 3 This is a schematic diagram of the internal mechanism of the present invention.

[0022] Figure 4 for Figure 3 A schematic diagram of the structure after removing the lock cover.

[0023] Figure 5 This is a cross-sectional schematic diagram of the internal mechanism of the present invention.

[0024] Figure 6 This is a schematic diagram of the lock body assembly of the present invention.

[0025] Figure 7 This is another structural schematic diagram of the lock body assembly of the present invention.

[0026] Figure 8 This is a schematic diagram of the micro switch triggering device of the present invention.

[0027] Figure 9 This is another structural schematic diagram of the micro switch triggering device of the present invention.

[0028] Figure 10 This is a schematic diagram of the structure of the lock cover of the present invention.

[0029] Figure 11 This is another structural schematic diagram of the lock cover of the present invention.

[0030] Figure 12 This is a schematic diagram of the steel ball base of the present invention.

[0031] Figure 13 This is a schematic diagram of the escape triggering device of the present invention.

[0032] Figure 14 This is another structural schematic diagram of the escape triggering device of the present invention.

[0033] Figure 15 This is a schematic diagram of the limiting structure of the triggering device of the present invention.

[0034] Figure 16 This is another schematic diagram of the limiting structure of the triggering device of the present invention.

[0035] in:

[0036] Lock body assembly 1, base 1.1, micro switch mounting base 1.2, bushing groove 1.3, steel ball base bracket 1.4, top cover groove 1.41, through hole 1.42, shaft hole groove 1.5, arc groove 1.6, limit rotation groove 1.7, turntable groove 1.71, rotating shaft 1.72, lock cylinder groove 1.8, wire inlet groove 1.9, micro switch 2, micro switch trigger button 3, micro switch triggering device 4, trigger plate 4.1, switch triggering part 4.2, connecting bushing 4.3, transmission rod 5, lock cover 6, top cover 6.1, convex Platform 6.11, Backplate 6.2, Clamping plate 6.3, Connecting hole 6.31, Connector 7, Steel ball 8, Steel ball base 9, Base body 9.1, Steel ball hole 9.2, Escape triggering device 10, Escape triggering device body 10.1, Escape triggering part 10.2, Steel ball platform 10.3, Central shaft hole 10.4, Triggering device limit 11, Rotating disk 11.1, Rotating shaft hole 11.2, Rotating step 11.3, Limiting ladder 11.4, Contact part 11.5, Lock cylinder 12, Pounding rod 13, Lock shell 14. Detailed Implementation

[0037] To better understand the technical solution of the present invention, a detailed description will be provided below in conjunction with relevant illustrations. It should be understood that the specific embodiments described below are not intended to limit the specific implementation of the technical solution of the present invention, but are merely possible implementations of the technical solution of the present invention. It should be noted that the descriptions of the positional relationships of the components herein, such as component A being located above component B, are based on the relative positions of the components in the illustrations and are not intended to limit the actual positional relationships of the components.

[0038] Example 1:

[0039] See Figures 1-16 , Figure 1 A schematic diagram illustrating the application of an escape lock device for a sliding door is provided. As shown in the figure, this invention relates to an escape lock device for a sliding door, which is installed on the wall of the sliding door and connected to a fixing device via a connector 7. The fixing device is installed on the sliding door. The escape lock device for a sliding door includes a lock body assembly 1 and a lock housing 14, which are snap-fitted together. The lock body assembly 1 is equipped with a micro switch 2, a micro switch trigger button 3, a micro switch triggering device 4, a transmission rod 5, a lock cover 6, a steel ball 8, a steel ball base 9, an escape triggering device 10, a triggering device limit 11, and a lock cylinder 12.

[0040] The lock assembly 1 includes a base 1.1. From top to bottom, the base 1.1 is provided with a micro switch mounting base 1.2, a bushing groove 1.3, a shaft hole groove 1.5, a limiting rotation groove 1.7, and a lock cylinder groove 1.8. A micro switch 2 is mounted on the micro switch mounting base 1.2, and a micro switch trigger button 3 is mounted on the micro switch 2. A micro switch triggering device 4 is mounted on the bushing groove 1.3. A ball bearing base frame 1.4 is located on the left and right sides of the shaft hole groove 1.5, and an arc-shaped groove 1.6 is located on the upper and lower sides of the shaft hole groove 1.5 for mounting an escape triggering device 10. A ball bearing base 9 is mounted on the ball bearing base frame 1.4, and a ball bearing 8 is mounted on the ball bearing base 9. A lock cover 6 is mounted on the ball bearing 8. A triggering device limiting 11 is mounted on the limiting rotation groove 1.7. A lock cylinder 12 is mounted on the lock cylinder groove 1.8. A wire inlet groove 1.9 is located at the bottom of the base 1.1 for wire entry from the bottom.

[0041] The micro switch triggering device 4 includes a trigger plate 4.1, which is inverted L-shaped. The top surface of the trigger plate 4.1 has an outwardly protruding switch triggering part 4.2. The bottom of the trigger plate 4.1 has a connecting bushing 4.3, which is engaged in the bushing groove 1.3. The trigger plate 4.1 is hinged to the base 1.1 through the connecting bushing 4.3 via a rotating shaft. The top of the trigger plate 4.1 is positioned above the micro switch triggering button 3 and contacts the micro switch triggering button 3. A transmission rod 5 is provided between the outer end of the switch triggering part 4.2 and the steel ball 8, and the transmission rod 5 contacts the steel ball 8.

[0042] The steel ball base 9 includes a base body 9.1, and a through steel ball hole 9.2 is provided in the middle of the base body 9.1 for supporting the steel ball 8.

[0043] The escape triggering device 10 is disposed between two steel ball base frames 1.4. The escape triggering device 10 includes an escape triggering body 10.1. The top of the escape triggering body 10.1 is provided with a steel ball platform 10.3. The steel ball 8 passes through the steel ball hole 9.2 and stands on the steel ball platform 10.3. The bottom of the escape triggering body 10.1 is provided with a central shaft hole 10.4. The bottom of the central shaft hole 10.4 is engaged in the shaft hole groove 1.5 and extends out. The lower end of the escape triggering body 10.1 is provided with an escape triggering part 10.2 for contacting the triggering device limiting 11.

[0044] The top surface of the steel ball base frame 1.4 is provided with a top cover groove 1.41 for locking the cover 6, and the middle part of the steel ball base frame 1.4 is provided with a through hole 1.42.

[0045] The locking cover 6 includes a top cover 6.1 and a back plate 6.2 connected vertically. A clamping plate 6.3 is provided on the left and right sides of the back plate 6.2. A connecting hole 6.31 is provided on the clamping plate 6.3. The bottom edge of the clamping plate 6.3 is rounded to be locked in the top cover groove 1.41. A frustum-shaped boss 6.11 is provided on the bottom surface of the top cover 6.1. The bottom surface of the top cover 6.1 is positioned above the steel ball 8. The boss 6.11 is used to press the steel ball 8.

[0046] The center lines of the central shaft hole 10.4, the connecting hole 6.31 and the through hole 1.42 are on the same horizontal line. The escape trigger device 10, the lock cover 6 and the steel ball base frame 1.4 are hinged by the through connecting shaft to realize the rotation of the escape trigger device 10.

[0047] The limiting rotation groove 1.7 has a recessed turntable groove 1.71, and the center of the turntable groove 1.71 has a protruding rotating shaft 1.72.

[0048] The triggering device limiting 11 includes a rotating disk 11.1 and a limiting ladder 11.4. The limiting ladder 11.4 is disposed in the limiting rotating groove 1.7, and the rotating disk 11.1 is disposed in the turntable groove 1.71. The rotating disk 11.1 is connected to the limiting ladder 11.4 through a rotating step 11.3. The limiting ladder 11.4 is in the shape of a rotating slide. The rotating disk 11.1 has a rotating shaft hole 11.2 at its center, which is fitted onto the rotating shaft 1.72. The lower end of the limiting ladder 11.4 is disposed below the escape trigger part 10.2, and the higher end is disposed on one side of the lock cylinder 12. The rotating step 11.3 has a contact part 11.5 with a certain height, which is close to the inner side of the higher end of the limiting ladder 11.4 and is used to contact the lock cylinder 12.

[0049] The connector 7 can be made of iron chain, and the connector 7 is inserted into the cavity between the lock cover 6 and the steel ball 8.

[0050] The bottom of the central shaft hole 10.4 of the escape trigger device 10 extends out of the shaft hole groove 1.5. A tamper 13 is provided on the outside of the lock body assembly 1 at the corresponding position. In case of emergency, the tamper 13 inside the door will trigger the escape trigger device 10.

[0051] Working principle:

[0052] When the chain enters the cavity formed by the stainless steel lock cover and the steel ball, it pushes the stainless steel transmission rod upward, which in turn pushes the micro switch trigger device to move along its rotation axis, ultimately triggering the micro switch trigger button. At this time, the electronic control system receives the signal from the micro switch and stops working. When the key is inserted to unlock, the trigger device limiter moves along its rotation axis, which in turn pushes the escape trigger device to activate, ultimately causing the steel ball to fall. The chain then disengages from the lock body, the micro switch trigger button is deactivated, and the electronic control system resumes operation, completing the unlocking process. When the tamper is pressed inside the sliding door, the tamper strikes the escape trigger device, causing the steel ball to fall, the chain to disengage from the lock body, the micro switch trigger button is deactivated, and the electronic control system resumes operation.

[0053] The above are merely specific application examples of the present invention and do not constitute any limitation on the scope of protection of the present invention. All technical solutions formed by equivalent transformations or substitutions fall within the scope of protection of the present invention.

Claims

1. An escape lock device for a sliding door, characterized in that: It is connected to a fixing device via a connector (7), and the fixing device is installed on the sliding door; it includes a lock body assembly (1) and a lock shell (14), which are snap-fitted together. The lock body assembly (1) is provided with a micro switch (2), a micro switch trigger button (3), a micro switch triggering device (4), a transmission rod (5), a lock cover (6), a steel ball (8), a steel ball base (9), an escape triggering device (10), a triggering device limit (11), and a lock cylinder (12); the micro switch (2) is provided with a micro switch... A switch trigger button (3) is provided with a micro switch trigger device (4). The micro switch trigger device (4) contacts the steel ball (8) through a transmission rod (5). An escape trigger device (10) is provided below the steel ball (8). The lower end of the escape trigger device (10) is located below the trigger device limit (11). The trigger device limit (11) is rotatably located on one side of the lock cylinder (12) and contacts the lock cylinder (12). The connecting piece (7) passes through the cavity between the lock cover (6) and the steel ball (8). The lock assembly (1) includes a base (1.1). From top to bottom, the base (1.1) is provided with a micro switch fixing seat (1.2), a bushing groove (1.3), a shaft hole groove (1.5), a limiting rotation groove (1.7), and a lock cylinder groove (1.8). A micro switch (2) is provided on the micro switch fixing seat (1.2). A micro switch triggering device (4) is provided on the bushing groove (1.3). A steel ball base frame (1.4) is provided on the left and right sides of the shaft hole groove (1.5). An arc groove (1.6) is provided on the upper and lower sides of the shaft hole groove (1.5) for setting an escape triggering device (10). A steel ball base (9) is provided on the steel ball base frame (1.4). A steel ball (8) is provided on the steel ball base (9). A lock cover (6) is provided on the steel ball (8). A triggering device limit (11) is provided on the limiting rotation groove (1.7). A lock cylinder (12) is provided on the lock cylinder groove (1.8). The micro switch triggering device (4) includes a trigger plate (4.1). The top surface of the trigger plate (4.1) is provided with an outwardly protruding switch triggering part (4.2). The bottom of the trigger plate (4.1) is provided with a connecting bushing (4.3). The connecting bushing (4.3) is locked in the bushing groove (1.3). The trigger plate (4.1) is hinged to the base (1.1) through the connecting bushing (4.3) via a rotating shaft. The top of the trigger plate (4.1) is positioned above the micro switch triggering button (3) and contacts the micro switch triggering button (3). The outer end of the switch triggering part (4.2) is provided with a transmission rod (5) between it and the steel ball (8). The transmission rod (5) contacts the steel ball (8). The steel ball base (9) includes a base body (9.1), and a through steel ball hole (9.2) is provided in the middle of the base body (9.1) for supporting steel balls (8). The escape triggering device (10) is set between two steel ball base frames (1.4). The escape triggering device (10) includes an escape triggering body (10.1). A steel ball platform (10.3) is provided at the top of the escape triggering body (10.1). The steel ball (8) passes through the steel ball hole (9.2) and stands on the steel ball platform (10.3). An escape triggering part (10.2) is provided at the lower end of the escape triggering body (10.1) for contacting the triggering device limit (11). The bottom of the escape trigger device (10) is provided with a central shaft hole (10.4), the bottom of the central shaft hole (10.4) is engaged in the shaft hole groove (1.5) and passes through it. The lock cover (6) is provided with clamping plates (6.3) on both sides, and a connecting hole (6.31) is provided on the clamping plate (6.3). The middle part of the steel ball base frame (1.4) is provided with a through hole (1.42). The center lines of the central shaft hole (10.4), the connecting hole (6.31) and the through hole (1.42) are on the same horizontal line. The escape trigger device (10), the lock cover (6) and the steel ball base frame (1.4) are hinged by a through connecting shaft to realize the rotation of the escape trigger device (10). The bottom of the central shaft hole (10.4) of the escape trigger device (10) extends through the shaft hole groove (1.5). The lock body assembly (1) is provided with a tamping rod (13) on the outer side of the corresponding position. When the tamping rod (13) is pressed, the tamping rod (13) hits the escape trigger device (10), causing the steel ball (8) to fall, the connecting piece (7) to disengage from the lock body, the micro switch trigger button (3) is deactivated, and the electrical control system resumes operation.

2. The escape lock device for a sliding door according to claim 1, characterized in that: The lock cover (6) includes a top cover (6.1) and a back plate (6.2) connected vertically. A clamp (6.3) is provided on the left and right sides of the back plate (6.2). A frustum-shaped boss (6.11) is provided on the bottom surface of the top cover (6.1). The bottom surface of the top cover (6.1) is located above the steel ball (8). The boss (6.11) is used to press the steel ball (8).

3. An escape lock device for a sliding door according to claim 1, characterized in that: The top surface of the steel ball base frame (1.4) is provided with a top cover groove (1.41) for locking the cover (6), and the bottom edge of the clamping plate (6.3) is rounded to be locked in the top cover groove (1.41).

4. An escape lock device for a sliding door according to claim 1, characterized in that: The limiting rotation groove (1.7) has a recessed turntable groove (1.71), and the center of the turntable groove (1.71) has a protruding rotating shaft (1.72); the triggering device limiting (11) includes a rotating disk (11.1) and a limiting platform (11.4), the limiting platform (11.4) is set in the limiting rotation groove (1.7), the rotating disk (11.1) is set in the turntable groove (1.71), the rotating disk (11.1) is connected to the limiting platform (11.4) through a rotating step (11.3), the limiting... The platform (11.4) is in the shape of a rotating slide. The center of the rotating disk (11.1) is provided with a rotating shaft hole (11.2), which is fitted onto the rotating shaft (1.72). The lower end of the limiting platform (11.4) is located below the escape trigger part (10.2), and the higher end is located on one side of the lock cylinder (12). A contact part (11.5) is provided on the rotating step (11.3). The contact part (11.5) is close to the inner side of the higher end of the limiting platform (11.4) and is used to contact the lock cylinder (12).

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