Multi-lock-point escape lock

Abstract

The utility model discloses a multi-lock-point escape lock which comprises a main lock assembly and an auxiliary lock assembly, the main lock assembly comprises a main lock tongue and a main lock shell, the main lock tongue is connected to the main lock shell in a rotating mode, and a part of the main lock tongue extends out of the main lock shell. The auxiliary lock assembly is connected to the upper portion or the lower portion of the main lock assembly and comprises an auxiliary lock shell, an auxiliary spring bolt and a driven rod, the auxiliary spring bolt is rotationally connected to the auxiliary lock shell, the driven rod is slidably connected to the auxiliary lock shell, the main lock shell is provided with a driving block, the driving block is provided with a shifting rod, the main lock shell is movably provided with a linkage block, and the linkage block is connected with the driven rod through the driving rod. The linkage block abuts against the driving block, when the driving block rotates, the shifting rod abuts against and drives the main lock tongue to rotate so as to retract into the main lock shell, the driving block synchronously abuts against and drives the linkage block to slide away from one side of the auxiliary lock assembly, and the driven rod drives the auxiliary lock tongue to rotate so as to retract into the auxiliary lock shell.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and in particular to a multi-point escape lock. Background Technology

[0002] Public places such as schools, hospitals, and office buildings have extremely high requirements for the security and ease of escape of door locks. Traditional door locks often only have one locking point, which is insufficient for anti-theft performance. In order to improve escape efficiency while taking into account anti-theft performance, multi-locking point escape locks have emerged. Multi-locking point escape locks achieve multi-point locking by adding a secondary lock component to the main lock, thereby enhancing the anti-theft performance of the door lock. At the same time, in an emergency, all locking points can be quickly unlocked through a unified operation, facilitating the rapid evacuation of personnel.

[0003] However, most existing multi-point escape locks are complex in structure, inconvenient to operate, and the linkage mechanism between the locks is not efficient enough. Often, it is necessary to operate the secondary lock separately while unlocking the main lock. This not only prolongs the escape time, but may also damage the lock due to improper operation, affecting the escape efficiency. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a multi-point escape lock that is simple in structure, easy to operate, and highly efficient in its linkage.

[0005] This utility model also proposes an escape door with the above-mentioned multi-point escape lock.

[0006] According to a first aspect of the present invention, a multi-point escape lock includes a main lock assembly and a secondary lock assembly. The main lock assembly includes a main bolt and a main lock housing. The main bolt is rotatably connected to the main lock housing and extends partially out of the main lock housing. The secondary lock assembly is connected above or below the main lock assembly. The secondary lock assembly includes a secondary lock housing, a secondary bolt, and a driven rod. The secondary bolt is rotatably connected to the secondary lock housing, and the driven rod is slidably connected to the secondary lock housing. The main lock housing is provided with a drive block, and the drive block is provided with a lever. The main lock housing is movably provided with a linkage block. The linkage block is connected to the driven rod through the drive rod. The linkage block abuts against the drive block. When the drive block rotates, the lever abuts against and drives the main bolt to rotate to retract the main lock housing. Simultaneously, the drive block abuts against and drives the linkage block to slide away from the side of the secondary lock assembly. The driven rod drives the secondary bolt to rotate to retract the secondary lock housing.

[0007] The multi-point escape lock according to this utility model embodiment has at least the following beneficial effects: When the drive block rotates, its lever abuts against and drives the main bolt to rotate, causing the main bolt to retract into the main lock housing, thereby unlocking the main lock point. Simultaneously, the drive block abuts against the linkage block, pushing the linkage block to slide away from the secondary lock assembly. The linkage block pulls the driven rod through the drive rod, which drives the secondary bolt to rotate, causing the secondary bolt to retract into the secondary lock housing, thereby unlocking the secondary lock point. It is understood that the multi-point design improves the anti-theft performance of the door lock; even if one lock point is damaged, the other lock points can still remain locked, increasing the difficulty of illegal intrusion. Furthermore, the multi-point escape lock integrates the unlocking actions of the main lock and the secondary lock into a single operation through a linkage structure, greatly simplifying the escape procedure, achieving efficient synchronous action of the main bolt and the secondary bolt, and significantly improving the ease of operation and reliability of the lock.

[0008] According to some embodiments of the present invention, two secondary lock components are provided, and the two secondary lock components are symmetrically arranged above and below the main lock component.

[0009] According to some embodiments of this utility model, the main lock housing is movably provided with a driven block, and the driven block and the linkage block are respectively connected through the driven rod to drive the two secondary lock components to unlock.

[0010] According to some embodiments of this utility model, the driven block and the linkage block are respectively arranged opposite to each other along the centerline of the main lock housing. The main lock housing is rotatably connected to a linkage gear, which is disposed between the linkage block and the driven block. The linkage block of the main lock housing is provided with linkage teeth, and the linkage block meshes with the linkage gear through the linkage teeth. The driven block is provided with driven teeth, and the driven block meshes with the linkage gear through the driven teeth. When the linkage block is driven by the driving block, the linkage gear rotates to drive the driven block to slide and drive the driven rod to move, and the two secondary lock components unlock synchronously.

[0011] According to some embodiments of the present invention, the main lock housing has a groove-shaped structure, and guide sidewalls are provided on both sides of the driven block and both sides of the linkage block. The guide sidewalls abut against the inner sidewalls on both sides of the main lock housing to guide the movement direction of the driven block and the linkage block.

[0012] According to some embodiments of this utility model, the main lock housing is provided with limit rods, and there are two limit rods respectively located near the two driven rods. The driven rods move and abut against the limit rods to restrict the movement of the two driven rods.

[0013] According to some embodiments of this utility model, the driven block is provided with a reset boss, and a reset spring is connected between the reset boss and the limiting rod to drive the two auxiliary locking tongues to reset.

[0014] According to some embodiments of this utility model, a secondary locking rod is provided at the end of the secondary locking tongue that is away from the secondary locking shell. The secondary locking rod is connected to the driven rod. The driven rod moves toward the main locking shell, and the secondary locking rod moves toward the interior of the secondary locking shell to drive the secondary locking shell to retract.

[0015] According to some embodiments of this utility model, the secondary lock tongue is connected to a secondary lock shaft, the secondary lock shaft is rotatably connected to the secondary lock housing, and the secondary lock shaft is fitted with a return torsion spring to drive the secondary lock tongue to retract and return to its original position.

[0016] According to some embodiments of the present invention, the main lock assembly is connected to a toggle assembly, the toggle assembly includes a pressure rod and a rocker arm, one end of the rocker arm is rotatably connected to the main lock housing and is provided with a rotating shaft, the rotating shaft passes through the main lock housing and is connected to the drive block, the rocker arm is set in an inclined upward posture, one end of the pressure rod is connected to the end of the rocker arm away from the main lock housing, and the other end is hinged to the door panel.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of a multi-point escape lock according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the main lock assembly of the multi-point escape lock according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the linkage structure inside the main lock shell of the multi-point escape lock according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the secondary lock assembly of the multi-point escape lock according to an embodiment of the present invention.

[0023] Reference numerals: Main lock assembly 100; Main lock housing 110; Main lock tongue 120; Drive block 130; Lever 131; Linkage block 140; Linkage tooth 141; Driven block 150; Driven tooth 151; Reset boss 152; Linkage gear 160; Limit rod 170; Reset spring 171; Guide sidewall 180; Secondary lock assembly 200; Secondary lock housing 210; Secondary lock tongue 220; Secondary lock rod 221; Secondary lock shaft 222; Reset torsion spring 223; Driven rod 300; Lever assembly 400; Rocker arm 410; Pressure rod 420; Rotating shaft 430. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationships based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution. In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model discloses a multi-point escape lock, including a main lock assembly 100 and a secondary lock assembly 200. The main lock assembly 100 includes a main lock tongue 120 and a main lock housing 110. The main lock tongue 120 is rotatably connected to the main lock housing 110 and extends out of the main lock housing 110. A secondary lock assembly 200 is connected above or below the main lock assembly 100. The secondary lock assembly 200 includes a secondary lock housing 210, a secondary lock tongue 220, and a driven rod 300. The secondary lock tongue 220 is rotatably connected to the secondary lock housing 210, and the driven rod 300 is slidably connected to the secondary lock housing 210. The main lock housing 110 is provided with a drive block 130, and the drive block 130 is provided with a lever 131. The main lock housing 110 is movably provided with a linkage block 140, which is connected to the driven rod 300 through the drive rod. The linkage block 140 abuts against the drive block 130. When the drive block 130 rotates, the lever 131 abuts against and drives the main lock tongue 120 to rotate to retract the main lock housing 110. At the same time, the drive block 130 abuts against and drives the linkage block 140 to slide away from the side of the secondary lock assembly 200. The driven rod 300 drives the secondary lock tongue 220 to rotate to retract the secondary lock housing 210.

[0029] In a specific embodiment, the main lock assembly 100 includes a main lock housing 110 and a main lock bolt 120. The main lock bolt 120 is rotatably connected to the main lock housing 110 via a pivot 430, and partially extends out of the main lock housing 110 to achieve a locking function. A drive block 130 is provided inside the main lock housing 110, and a lever 131 is provided on the drive block 130. The drive block 130 is connected to an external operating mechanism for driving the rotation of the main lock bolt 120. A linkage block 140 is also movably disposed inside the main lock housing 110, and the linkage block 140 is connected to the driven lever 300 of the secondary lock assembly 200 via a drive rod. The secondary lock assembly 200 is connected above or below the main lock assembly 100 and includes a secondary lock housing 210, a secondary lock bolt 220, and a driven lever 300. The secondary bolt 220 is also rotatably connected to the interior of the secondary lock housing 210 via the pivot 430, while the driven rod 300 is slidably connected to the interior of the secondary lock housing 210 to transmit the driving force from the main lock assembly 100.

[0030] A linkage block 140 is also movably disposed within the main lock housing 110, and the linkage block 140 is connected to the driven rod 300 via a drive rod. In the normal locked state, the linkage block 140 abuts against the drive block 130. When an external operation causes the drive block 130 to rotate, the lever 131 first abuts against and drives the main bolt 120 to rotate, causing the main bolt 120 to retract into the main lock housing 110, thereby unlocking the main lock. Simultaneously, the rotation of the drive block 130 also abuts against and pushes the linkage block 140 to slide away from the secondary lock assembly 200. The sliding of the linkage block 140 is transmitted to the driven rod 300 via the drive rod, which in turn drives the secondary bolt 220 to rotate, causing the secondary bolt 220 to also retract into the secondary lock housing 210, thereby unlocking the secondary lock.

[0031] The linkage mechanism between the main lock assembly 100 and the secondary lock assembly 200 is as follows: When the drive block 130 rotates, its lever 131 abuts against and drives the main bolt 120 to rotate, causing the main bolt 120 to retract into the main lock housing 110, thereby unlocking the main lock point. Simultaneously, the drive block 130 abuts against the linkage block 140, pushing the linkage block 140 to slide away from the secondary lock assembly 200. The linkage block 140 pulls the driven lever 300 via the drive rod, which in turn drives the secondary bolt 220 to rotate, causing the secondary bolt 220 to retract into the secondary lock housing 210, thereby unlocking the secondary lock point.

[0032] Understandably, the multi-point locking design enhances the anti-theft performance of the door lock. Even if one locking point is damaged, the others remain locked, increasing the difficulty of unauthorized entry. Furthermore, the multi-point escape lock integrates the unlocking actions of the main lock and auxiliary lock into a single operation through a linkage structure, greatly simplifying the escape process. It achieves efficient synchronous movement of the main bolt 120 and the auxiliary bolt 220, significantly improving the ease of operation and reliability of the lock.

[0033] Reference Figure 1In some embodiments, two secondary lock components 200 are provided, symmetrically positioned above and below the main lock component 100. Specifically, a driven block 150 is movably disposed within the main lock housing 110. The driven block 150 and the linkage block 140 are connected via driven rods 300 and drive the two secondary lock components 200 to unlock. When the drive block 130 rotates, the linkage block 140 is pushed, causing one secondary lock component 200 to unlock. Simultaneously, the movement of the linkage block 140 causes the driven block 150 to move, which then drives the other secondary lock component 200 to unlock via the driven rods 300. This not only enhances the overall stability of the door lock but also enables effective locking in multiple directions, further improving security. Through the cooperation of the driven block 150 and the linkage block 140, the synchronous unlocking of the two secondary lock components 200 is achieved, simplifying the transmission structure and allowing both secondary lock components 200 to be unlocked simultaneously in a single operation, thus improving escape efficiency.

[0034] Reference Figure 2 and Figure 3 A linkage gear 160 is installed inside the main lock housing 110, positioned between the linkage block 140 and the driven block 150. The linkage block 140 and driven block 150 mesh with the linkage gear 160 via linkage teeth 141 and driven teeth 151, respectively. When the drive block 130 moves the linkage block 140, the linkage gear 160 rotates and moves the driven block 150, thereby driving the two secondary lock assemblies 200 to unlock synchronously via the driven rod 300. To ensure the correct movement direction of the linkage block 140 and driven block 150, a guide sidewall 180 is installed inside the main lock housing 110, abutting against the inner sidewalls on both sides of the main lock housing 110 to guide the movement direction of the linkage block 140 and driven block 150. Through the transmission of the linkage gear 160, the synchronous movement of the linkage block 140 and driven block 150 is achieved, thus enabling the synchronous unlocking of the two secondary lock assemblies 200. The guide sidewall 180 ensures the accurate movement direction of the linkage block 140 and the driven block 150, improving the accuracy and stability of the transmission.

[0035] Furthermore, a limiting rod 170 is provided inside the main lock housing 110, located near the two driven rods 300. When the driven rods 300 move, they abut against the limiting rod 170, limiting their range of motion and preventing excessive movement that could damage the mechanism. This invention also includes a reset boss 152 on the driven block 150, with a reset spring 171 connecting the reset boss 152 and the limiting rod 170. When the driven block 150 is pushed, the reset spring 171 is compressed; when the external driving force disappears, the reset spring 171 releases energy and resets the driven block 150 and the secondary latch 220. The reset spring 171 allows the driven block 150 and the secondary latch 220 to automatically reset after unlocking, improving the reliability and durability of the lock. Manual reset of the secondary latch 220 is unnecessary, simplifying the operation.

[0036] Reference Figure 4 A secondary locking lever 221 is provided at the end of the secondary latch 220 away from the secondary lock housing 210, and the secondary locking lever 221 is connected to the driven lever 300. When the driven lever 300 moves toward the main lock housing 110, the secondary locking lever 221 moves toward the interior of the secondary lock housing 210, thereby causing the secondary latch 220 to retract. The movement of the driven lever 300 is transmitted to the secondary latch 220 through the secondary locking lever 221, causing it to rotate and retract into the secondary lock housing 210, thus unlocking. Further, the secondary latch 220 is connected to a secondary locking shaft 222, which is rotatably connected to the secondary lock housing 210. A return torsion spring 223 is fitted on the secondary locking shaft 222, which is used to drive the secondary latch 220 to reset after the unlocking operation is completed. The torque of the return torsion spring 223 causes the secondary latch 220 to automatically return to the extended state after unlocking, ensuring the reliability of the lock. Optionally, the main latch 120 may be equipped with a reset structure for the secondary latch 220 simultaneously.

[0037] Reference Figure 1 The main lock assembly 100 is connected to an actuating assembly 400. The actuating assembly 400 includes a pressure rod 420 and a rocker arm 410. One end of the rocker arm 410 is rotatably connected to the main lock housing 110 and connected to the drive block 130 via a pivot 430. The rocker arm 410 is positioned at an upward angle. One end of the pressure rod 420 is connected to the rocker arm 410, and the other end is hinged to the door panel. When the pressure rod 420 is subjected to external force, the rocker arm 410 rotates, causing the drive block 130 to rotate, which in turn drives the main bolt 120 and the secondary bolt 220 to move synchronously. The actuating assembly 400 enables external unlocking of the door lock, allowing users to unlock the lock with a simple pressing action. This simplifies the unlocking process and improves escape efficiency, especially enabling rapid evacuation of personnel in emergencies.

[0038] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A multi-point escape lock, characterized in that, The utility model provides a lock, including: Main lock assembly, including main lock tongue, main lock shell, the main lock tongue is rotatably connected in the main lock shell, and part extends in the main lock shell, Subordinate lock assembly is connected above or below the main lock assembly, and the subordinate lock assembly includes subordinate lock shell, subordinate lock tongue and driven rod, the subordinate lock tongue is rotatably connected in the subordinate lock shell, the driven rod is slidably connected in the subordinate lock shell, The main lock shell is provided with driving block, the driving block is provided with the pole, the main lock shell is movably provided with linkage block, the linkage block is connected the driven rod through driving rod, the linkage block is opposite with the driving block, when the driving block rotates, the pole abuts and drives the main lock tongue to rotate to retract the main lock shell, and the driving block synchronous abuts and drives the linkage block to slide away from the side of subordinate lock assembly, the driven rod drives the subordinate lock tongue to rotate to retract the subordinate lock shell.

2. The multi-point escape lock according to claim 1, wherein, The subordinate lock assembly is provided with two, and two subordinate lock assemblies are symmetrically arranged above and below the main lock assembly.

3. The multi-point escape lock according to claim 2, wherein, The main lock shell is movably provided with driven block, and the driven block is connected and drives two subordinate lock assemblies to be unlocked through the driven rod respectively.

4. The multi-point escape lock of claim 3, wherein, The driven block and the linkage block are oppositely arranged along the center line of the main lock shell respectively, the main lock shell is rotatably connected with linkage gear, the linkage gear is arranged between the linkage block and the driven block, the main lock shell linkage block is provided with linkage tooth trace, the linkage block is engaged with the linkage gear through the linkage tooth trace, the driven block is provided with driven tooth trace, and the driven block is engaged with the linkage gear through the driven tooth trace.

5. The multi-point escape lock according to claim 4, wherein, When the linkage block is driven by the driving block, the linkage gear rotates to drive the driven block to slide and drive the driven rod to move, and two subordinate lock assemblies are synchronously unlocked.

6. The multi-point escape lock according to claim 4, wherein, The main lock shell is provided with a groove structure, and the two sides of the driven block and the two sides of the linkage block are provided with guide side walls.

7. The multi-point escape lock according to claim 6, wherein, The main lock shell is provided with a limiting rod, the limiting rod is provided with two, and is arranged close to the two driven rods respectively.

8. The multi-point escape lock of claim 1, wherein, The driven block is provided with a reset boss, and a reset spring is connected between the reset boss and the limiting rod to drive two subordinate lock tongues to reset.

9. The multi-point escape lock according to claim 8, wherein, The subordinate lock tongue is provided with a subordinate lock rod at one end away from the subordinate lock shell, the subordinate lock rod is connected with the driven rod, the driven rod moves towards the main lock shell, the subordinate lock rod moves towards the subordinate lock shell to drive the subordinate lock shell to retract. The subordinate lock tongue is connected with a subordinate lock shaft, the subordinate lock shaft is rotatably connected with the subordinate lock shell, and a reset torsion spring is sleeved on the subordinate lock shaft to drive the subordinate lock tongue to retract and reset.

10. The multi-point escape lock according to claim 1, wherein, The main lock assembly is connected with a knob assembly, the knob assembly comprises a pressing rod and a rocker, one end of the rocker is rotationally connected to the main lock shell and is provided with a rotating shaft, the rotating shaft connects the driving block through the main lock shell, the rocker is arranged in an inclined upward posture, one end of the pressing rod is connected to the end of the rocker away from the main lock shell, and the other end is hingedly connected to the door plate.

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