Escape lock
An escape lock was designed using a transmission mechanism consisting of a slanted locking tongue, a sliding plate, and a drive wheel. This solves the problem of traditional door locks requiring a key to open in emergencies, enabling both rapid escape and anti-theft functions.
Patent Information
- Application Number
- CN202422587796.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-10-25
AI Technical Summary
Traditional door locks require keys or tools to open in an emergency, delaying escape time and increasing the risk of casualties.
Design an escape lock that can be quickly unlocked in an emergency without a key through a handle or emergency release button, combined with a transmission mechanism of an oblique lock bolt, a slide and a drive wheel to achieve quick unlocking.
It can be quickly opened without a key in an emergency, ensuring efficient escape, while also providing security and anti-theft features for everyday use.
Smart Images
Figure CN223469136U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a lock technology field, especially a kind of escape lock. BACKGROUND
[0002] In public places such as schools, hospitals, office buildings, etc., fire safety is crucial. Traditional door locks may require a key or other tools to open in an emergency, which can delay escape time and increase the risk of casualties. Therefore, it is particularly important to design an escape lock that can maintain a safe locked state in daily use and quickly open in an emergency. SUMMARY
[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides an escape lock, which can quickly unlock without a key in an emergency, while ensuring safety and convenience in daily use.
[0004] According to the escape lock of the first aspect of the utility model, the installation plate is connected to the side wall of the lock shell, and the installation plate can be fixed to the door panel. The inclined lock tongue is slidingly connected to the lock shell to extend into or out of the installation plate. The sliding sheet is slidingly connected to the lock shell, and the inclined lock tongue and the sliding sheet are connected by a connecting rod. The drive wheel is provided with a through hole for fixing the square iron, and the drive wheel is connected with a drive rod. The sliding sheet is provided with a first drive plate, and the drive wheel rotates to drive the drive rod to rotate towards the first drive plate, and the sliding sheet drives the inclined lock tongue to extend into the lock shell.
[0005] According to the escape lock of the utility model, the lock shell is the main structure of the entire lock, and the lock shell is responsible for accommodating and protecting the internal mechanical components, while providing an interface for connecting with the door panel. The installation plate is connected to the side wall of the lock shell, and the inclined lock tongue is slidingly connected to the inside of the lock shell, which can extend into or out of the installation plate according to the on-off state of the lock, cooperate with the lock catch on the door frame, and realize the locking and opening of the door. The sliding sheet is also slidingly connected to the inside of the lock shell and connected to the inclined lock tongue through a connecting rod. The movement of the sliding sheet drives the extension and retraction of the inclined lock tongue, which is a key component of the internal transmission mechanism of the lock. The drive wheel is provided with a through hole for fixing the square iron, and the square iron is usually a handle. The handle rotates to drive the drive wheel to rotate, and the drive wheel is connected with a drive rod. The sliding sheet is provided with a first drive plate, and when the drive wheel rotates, the drive rod will rotate towards the first drive plate, thereby pushing the sliding sheet to move. In an emergency escape situation, the handle drives the drive wheel to act on the inclined lock tongue, or the built-in emergency release button, which can force the inclined lock tongue to overcome the retraction into the lock shell, thereby unlocking the door lock and allowing personnel to quickly evacuate. The lockable handle on the outside can play a certain anti-theft role.
[0006] According to some embodiments of the present application, the slide is rectangular, the first driving plate is connected to the end of the slide close to the inner side of the lock shell, the other end of the slide is provided with a limiting plate, and the connecting rod is fixed to the limiting plate.
[0007] According to some embodiments of the present application, the limiting plate is provided with a limiting groove, the connecting rod is embedded in the limiting groove, and the groove wall of the limiting groove abuts against the peripheral wall of the connecting rod.
[0008] According to some embodiments of the present application, the slide is provided with a through guide groove, the lock shell is provided with a guide rod, the guide groove is an elongated groove arranged along the length direction of the slide, the peripheral wall of the guide rod abuts against the groove wall of the guide groove to guide the moving direction of the bevel lock tongue.
[0009] According to some embodiments of the present application, the slide is provided with a second driving plate, the second driving plate is located between the guide groove and the limiting plate, the lock shell is provided with a square tongue driving piece for driving the square lock tongue to extend into the lock shell, the square tongue driving piece is connected with a linkage plate, the linkage plate is provided with a linkage piece, the linkage piece abuts against the connecting rod and is located between the limiting plate and the driving plate, when the bevel lock tongue extends into the lock shell, the limiting plate abuts against the linkage piece to drive the linkage plate to rotate, and the square tongue driving piece drives the square lock tongue to extend into the lock shell.
[0010] According to some embodiments of the present application, the linkage piece is provided with a yielding arc surface, and the inner side surface of the yielding arc surface closely abuts against the peripheral wall of the connecting rod.
[0011] According to some embodiments of the present application, the top of the slide is provided with an adjusting plate, the adjusting plate is provided with a convex plate on the side facing the mounting plate, the convex plate has a first limiting wall, the side of the adjusting plate facing the mounting plate is a second limiting wall, a step is formed between the first limiting wall and the second limiting wall, the lock shell is provided with a stop block, when the stop block abuts against the first limiting wall, the connecting rod is completely located in the lock shell, and when the stop block abuts against the second limiting wall, the connecting rod partially extends out of the mounting plate.
[0012] According to some embodiments of the present application, the lock shell is provided with a sliding groove, the stop block is located in the sliding groove to move towards or away from the slide, when the stop block moves away from the slide, the slide can move towards the side of the mounting plate, and the second limiting wall abuts against the stop block.
[0013] According to some embodiments of the utility model, the stopper is provided with a first reset spring, one end of the first reset spring is connected with the lock shell, the other end is connected with the stopper, so that the stopper is maintained in abutment with the first limiting wall in normal state.
[0014] According to some embodiments of the utility model, the lock shell is provided with a second reset spring, one end of the second reset spring is connected with the lock shell, the other end is connected with the sliding sheet, so that the latch bolt is extended out of the mounting plate in normal state.
[0015] The additional aspects and advantages of the utility model will be partly given in the following description, some will become obvious from the following description, or be known by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0016] The utility model will be further explained in combination with the drawings and embodiments, wherein:
[0017] Figure 1 It is the schematic view of escape lock of the utility model embodiment;
[0018] Figure 2 It is the schematic view of sliding sheet of escape lock of the utility model embodiment.
[0019] Reference signs: lock shell 100, mounting plate 110, guide column 120, latch bolt 200, connecting rod 210, drive wheel 300, through hole 301, drive rod 310, sliding sheet 400, first drive plate 410, guide slot 420, limiting plate 430, limiting slot 431, second drive plate 440, adjusting plate 450, convex plate 451, first limiting wall 452, second limiting wall 453, second reset spring 460, stopper 500, first reset spring 510, square tongue drive piece 600, linkage plate 700, linkage piece 710, let go arc surface 711. DETAILED DESCRIPTION
[0020] The embodiments of the utility model will be described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.
[0021] In the description of the utility model, it is understood that the orientation description, such as up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as the limitation of the utility model. The indicated device or element must have a specific orientation, a specific orientation and operation, therefore, cannot be understood as the limitation of the utility model.
[0022] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number. If it is described to the first, the second is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0023] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood in a broad sense, and the person skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of technical scheme.In the description of the utility model, the description of reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model.In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.In the description of the present application, the description of reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model.In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.
[0024] Referring to Figure 1 and Figure 2The utility model provides an escape lock, including lock case 100, mounting plate 110, oblique lock tongue 200, slide piece 400 and drive wheel 300. Mounting plate 110 is connected to the lateral wall of lock case 100, and mounting plate 110 can be used to be fixed to the door plate. Oblique lock tongue 200 is slidably connected to lock case 100, and extends into or out of mounting plate 110. Slide piece 400 is slidably connected to lock case 100, and oblique lock tongue 200 is connected with slide piece 400 through connecting rod 210. Drive wheel 300 is provided with through hole 301 for fixing square iron, and drive wheel 300 is connected with drive rod 310, and slide piece 400 is provided with first drive plate 410, drive wheel 300 rotates to drive drive rod 310 to rotate towards first drive plate 410, and slide piece 400 drives oblique lock tongue 200 to extend into lock case 100. It can be understood that lock case 100 is the main structure of the whole lock, and lock case 100 is responsible for accommodating and protecting internal mechanical components, while providing the interface connected with the door plate. Mounting plate 110 is connected to the lateral wall of lock case 100, and oblique lock tongue 200 is slidably connected to the inside of lock case 100, and can extend into or out of mounting plate 110 according to the on-off state of the lock, cooperate with the lock catch on the door frame, realize the locking and opening of the door. Slide piece 400 is also slidably connected to the inside of lock case 100 and is connected with oblique lock tongue 200 through connecting rod 210. The movement of slide piece 400 will drive the extension and retraction of oblique lock tongue 200, which is the key component of the internal transmission mechanism of the lock, and drive wheel 300 is provided with through hole 301 for fixing square iron, and square iron is usually external handle. Handle rotation drives drive wheel 300 to rotate, and drive wheel 300 is connected with drive rod 310. First drive plate 410 is arranged on slide piece 400, drive rod 310 rotates towards first drive plate 410 when drive wheel 300 rotates, and then slide piece 400 is pushed to move. In the case of emergency escape, the handle drives drive wheel 300 to act on oblique lock tongue 200, or the built-in emergency release button, which can force oblique lock tongue 200 to overcome the retraction into lock case 100, thereby unlocking the door lock and allowing personnel to evacuate quickly. The lockable handle on the outside can play a certain anti-theft role.
[0025] Refer to Figure 2 Slide piece 400 is rectangular, and the length and width are determined according to the internal space of lock case 100 and functional requirements. First drive plate 410 is connected to the end of slide piece 400 close to the inside of lock case 100, for receiving driving force from drive wheel 300. The other end of slide piece 400 is provided with limit plate 430, which is used for fixing connecting rod 210, to ensure that connecting rod 210 can stably drive oblique lock tongue 200 to extend and retract when slide piece 400 moves.
[0026] Further, the slide 400 is provided with a limiting plate 430 on the other side of the first driving plate 410, the limiting plate 430 is provided with a limiting groove 431, the connecting rod 210 is embedded in the limiting groove 431, and the groove wall of the limiting groove 431 abuts against the peripheral wall of the connecting rod 210, so as to limit the moving direction of the connecting rod 210, and ensure that the latch bolt 200 can be accurately and stably extended and retracted.
[0027] With reference to Figure 1 and Figure 2 Specifically, the slide 400 is provided with a through guide groove 420, and the lock shell 100 is provided with a guide rod. The guide groove 420 is an elongated groove arranged along the length direction of the slide 400, and the peripheral wall of the guide rod abuts against the groove wall of the guide groove 420, so as to guide the moving direction of the latch bolt 200.
[0028] With reference to Figure 2 Further, the slide 400 is provided with a second driving plate 440 between the guide groove 420 and the limiting plate 430. The lock shell 100 is provided with a square tongue driving piece 600 for driving the square latch to extend into the lock shell 100. The square tongue driving piece 600 is connected with the connecting rod 210 through a linkage plate 700, the linkage plate 700 is provided with a linkage piece 710, the linkage piece 710 abuts against the connecting rod 210 and is located between the limiting plate 430 and the driving plate. When the latch bolt 200 extends into the lock shell 100, the limiting plate 430 abuts against the linkage piece 710, drives the linkage plate 700 to rotate, and then drives the square tongue driving piece 600 to drive the square latch to extend into the lock shell 100. It should be noted that the square tongue driving piece 600 is used for connecting and driving the square latch, and the user can add the square latch in the lock shell 100 according to the needs, so as to play a certain anti-picking and anti-theft function. When escaping, the user rotates the handle to drive the latch bolt 200 to retract, at the same time, the limiting plate 430 drives the linkage piece 710, the linkage piece 710 abuts against the second driving plate 440 to drive the linkage piece 710 to move, the linkage plate 700 rotates and drives the square tongue driving piece 600 to rotate, and then the square latch retracts, so as to realize the synchronous retraction of the latch bolt 200 and the square latch, simplify the opening steps, and improve the efficiency of opening the door.
[0029] Optionally, the linkage piece 710 is provided with a yielding arc surface 711, and the inner side surface of the yielding arc surface 711 closely abuts against the peripheral wall of the connecting rod 210. This design enables the linkage piece 710 to smoothly rotate around the connecting rod 210 during the extension and retraction of the latch bolt 200, and avoids the resistance and wear caused by friction.
[0030] With reference to Figure 1It should be noted that the top of the sliding sheet 400 is provided with an adjusting plate 450, and the adjusting plate 450 is provided with a convex plate 451 on the side facing the mounting plate 110, and the convex plate 451 has a first limiting wall 452 and a second limiting wall 453, and a step is formed between the two. The lock shell 100 is provided with a stop block 500, and under normal circumstances, when the stop block 500 abuts against the first limiting wall 452, the connecting rod 210 is completely located in the lock shell 100; when the stop block 500 abuts against the second limiting wall 453, the connecting rod 210 partially extends out of the mounting plate 110. Specifically, the lock shell 100 is provided with a sliding groove, and the stop block 500 is located in the sliding groove to move towards or away from the sliding sheet 400. When the stop block 500 moves away from the sliding sheet 400, the sliding sheet 400 can move towards the side of the mounting plate 110, and the second limiting wall 453 abuts against the stop block 500. Optionally, the stop block 500 is provided with a first return spring 510, one end of which is connected to the lock shell 100, and the other end is connected to the stop block 500. Under normal circumstances, the first return spring 510 maintains the stop block 500 abutting against the first limiting wall 452.
[0031] It should be noted that in the initial state of the escape lock, the stop block 500 usually abuts against the first limiting wall 452, at this time the connecting rod 210 is completely located in the lock shell 100, and the latch bolt 200 is in the normal extension state, ready to be used for locking the door. When the escape lock needs to be installed on a left opening door or a right opening door, the user needs to determine whether the rotating direction of the latch bolt 200 needs to be adjusted according to the opening direction of the door. First, the stop block 500 needs to be moved from the first limiting wall 452 to the second limiting wall 453 by turning. During this process, the first return spring 510 will be compressed, and at the same time the connecting rod 210 will partially extend out of the mounting plate 110. After the connecting rod 210 extends out of the mounting plate 110, the user can directly see and touch it. At this time, the user can use a special tool or manually rotate or move the connecting rod 210, thereby driving the sliding sheet 400 and the latch bolt 200 to adjust the direction. After completing the direction adjustment, the user needs to ensure that the connecting rod 210, the sliding sheet 400 and the latch bolt 200 are in stable and correct positions. Then, the user can slide the sliding sheet 400, and then turn the stop block 500 to reset, so that the stop block 500 abuts against the first limiting wall 452 again, thereby fixing the positions of the connecting rod 210 and the latch bolt 200. At this time, the escape lock has completed the direction adjustment and can be safely installed on the left opening door or the right opening door and used normally.
[0032] Referring to Figure 1 The lock shell 100 is provided with a second return spring 460, one end of which is connected to the lock shell 100, and the other end is connected to the sliding sheet 400. Under normal circumstances, the second return spring 460 maintains the latch bolt 200 extending out of the mounting plate 110.
[0033] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range that the person skilled in the art has possesses without departing from the utility model's tenet under the precondition that the utility model is not limited to the above -mentioned embodiment.
Claims
1. An escape lock characterised in that, The utility model relates to a lock, comprising: a lock shell; a mounting plate connected to the side wall of the lock shell, the mounting plate being capable of being fixed to a door panel; a bevel lock tongue slidingly connected to the lock shell to extend into or out of the mounting plate; a slide plate slidingly connected to the lock shell, the bevel lock tongue and the slide plate being connected by a connecting rod; a drive wheel provided with a through hole for fixing a square iron, the drive wheel being connected with a drive rod, the slide plate being provided with a first drive plate, the drive wheel being rotated to drive the drive rod to rotate towards the first drive plate, the slide plate driving the bevel lock tongue to extend into the lock shell.
2. The escape lock of claim 1, wherein, The slide plate is rectangular, the first drive plate being connected to the end of the slide plate close to the inner side of the lock shell, the other end of the slide plate being provided with a limiting plate, the connecting rod being fixed to the limiting plate.
3. The escape lock of claim 2, wherein, The limiting plate is provided with a limiting groove, the connecting rod being embedded in the limiting groove, the groove wall of the limiting groove abutting against the peripheral wall of the connecting rod.
4. The escape lock of claim 2, wherein, The slide plate is provided with a guide groove, the lock shell being provided with a guide rod, the guide groove being an elongated groove arranged along the length direction of the slide plate, the peripheral wall of the guide rod abutting against the groove wall of the guide groove to guide the moving direction of the bevel lock tongue.
5. The escape lock of claim 4, wherein, The slide plate is provided with a second drive plate, the second drive plate being located between the guide groove and the limiting plate, the lock shell being provided with a square tongue driving piece for driving a square lock tongue to extend into the lock shell, the square tongue driving piece being connected with a linkage plate, the linkage plate being provided with a linkage piece, the linkage piece abutting against the connecting rod and being located between the limiting plate and the drive plate, the limiting plate abutting against the linkage piece when the bevel lock tongue extends into the lock shell to drive the linkage plate to rotate, the square tongue driving piece driving the square lock tongue to extend into the lock shell.
6. The escape lock of claim 5, wherein, The linkage piece is provided with a clearance arc surface, the inner side of the clearance arc surface being close to the peripheral wall of the connecting rod.
7. The escape lock of claim 2, wherein, The top of the slide plate is provided with an adjusting plate, the adjusting plate being provided with a convex plate on the side close to the mounting plate, the convex plate having a first limiting wall, the side of the adjusting plate close to the mounting plate being a second limiting wall, a step being formed between the first limiting wall and the second limiting wall, the lock shell being provided with a stopper, the connecting rod being completely located in the lock shell when the stopper abuts against the first limiting wall in the normal state, the connecting rod partially extending out of the mounting plate when the stopper abuts against the second limiting wall.
8. The escape lock of claim 7, wherein, The lock shell is provided with a sliding groove, the stopper being located in the sliding groove to move towards or away from the slide plate, the stopper moving away from the slide plate, the slide plate being capable of moving towards the side of the mounting plate, the second limiting wall abutting against the stopper.
9. The escape lock of claim 8, wherein, The stopper is provided with a first return spring, one end of the first return spring being connected to the lock shell and the other end being connected to the stopper to keep the stopper abutting against the first limiting wall in the normal state.
10. The escape lock of claim 1, wherein, The lock shell is provided with a second return spring, one end of the second return spring being connected to the lock shell and the other end being connected to the slide plate to keep the bevel lock tongue extending out of the mounting plate in the normal state.