Anti-collision self-locking structure

Abstract

The utility model relates to electronic lock anti -collision technical field, and disclose a kind of anti -collision self-locking structure, including lever, wherein middle part is hinged in the lock catch plate assembly by fulcrum, one end with the position of lock tongue inside the slot corresponds, is force arm, the other end is action arm;Wedge, set in the pre -buried box inside, located on the movement path of the action arm, installation direction is perpendicular to the lock tongue;Supporting component, set in the pre -buried box inside, installed in the side of wedge far from the lock tongue one end;When the lock tongue impact the force arm, the action arm pushes the wedge to move, the wedge drives the supporting component radial expansion and tightly the inside wall of the pre -buried box;The utility model has the ability to convert destructive impact force into structural self-locking power, solve the problem that traditional lock catch plate is weak because of fixed point and is easy to fall off from door frame as a whole under violent impact.

Description

Technical Field

[0001] This utility model relates to the field of electronic lock anti-collision technology, specifically an anti-collision self-locking structure. Background Technology

[0002] The bolt is the core component of a door lock that enables its locking function. It works in conjunction with the strike plate on the door frame to close the door. Currently, the mainstream bolt structure, such as the square bolt, extends and retracts through direct mechanical transmission. Its connection to the internal structure of the lock body is usually rigid or a simple spring return type.

[0003] However, existing bolt mechanisms pose a systemic safety risk when faced with violent impacts. The core issue lies not in the bolt's retraction itself, but in the weakness of the force transmission path. When a large impact force is applied to the door, the force is concentrated through the bolt onto the relatively weak strike plate, easily causing the strike plate's fixing screws to be pulled out or torn apart, thus forcibly opening the door. Current technology lacks a mechanism to optimize the force transmission path at the moment of impact, failing to effectively distribute the impact force from the fragile strike plate to the more robust lock body and door structure, resulting in an inherent weakness in its resistance to violent impacts. Summary of the Invention

[0004] (I) Technical problem to be solved: In view of the shortcomings of the existing technology, this utility model provides an anti-impact self-locking structure, which has the ability to convert destructive impact force into structural self-locking power, and solves the problem that traditional lock plates are easy to fall off the door frame under violent impact due to weak fixing points.

[0005] (II) Technical solution: In order to achieve the above-mentioned purpose of converting destructive impact force into structural self-locking power, this utility model provides the following technical solution: an anti-collision self-locking structure, in addition to the lock body, includes: a pre-embedded box, which is partially set inside the door frame.

[0006] The strike plate assembly is fixedly installed in the pre-embedded box, and the strike plate assembly is provided with a slot for the lock tongue to be inserted.

[0007] The lever is located inside the embedded box. Its middle part is hinged to the latch plate assembly through a fulcrum. One end of the lever corresponds to the position of the latch inside the slot and is the force arm, while the other end is the action arm.

[0008] A wedge-shaped block is set inside the pre-embedded box, located on the movement path of the actuator arm, and installed perpendicular to the locking tongue.

[0009] A support component is disposed inside the pre-embedded box and installed on the side of the wedge block away from the locking tongue.

[0010] When the locking tongue strikes the force-bearing arm, the actuating arm pushes the wedge block to move, and the wedge block drives the support component to expand radially and press against the inner wall of the embedded box.

[0011] Preferably, the support component includes at least one pair of support columns, the support columns having an inclined surface on the side near the wedge block, and the wedge block having an inclined surface at the end near the support column that matches the inclined surface of the support column.

[0012] Preferably, the support column is positioned perpendicular to the inner wall of the pre-embedded box.

[0013] Preferably, the surface of the support column near the inner wall of the pre-embedded box is textured.

[0014] Preferably, the pre-embedded box is provided with a limiting groove inside, and the support column and the wedge block are disposed inside the limiting groove.

[0015] Preferably, the mating surfaces of the slot and the locking tongue are asymmetrical, with an movable gap reserved on the side facing the force-bearing arm for transmitting impact force.

[0016] Preferably, the end of the actuator arm and the wedge block are in planar contact.

[0017] Preferably, the lever is a force-saving lever, and the length of the force-receiving arm is greater than the length of the action arm.

[0018] (III) Beneficial Effects: Compared with the prior art, this utility model provides an anti-impact self-locking structure with the following beneficial effects: 1. This anti-impact self-locking structure, through its built-in pure mechanical transmission mechanism, can convert destructive impact force into a self-strengthening fastening force in real time. When the lock tongue strikes the internal lever, through the linkage between the lever and the wedge block, the wedge block is driven into the inner side of the door frame and squeezed against the support columns on both sides, ultimately driving the support component to expand radially and firmly press against the inner wall of the embedded box, increasing the friction between the embedded box and the door frame, making the lock less easily opened, achieving a process of using force against force: the greater the impact force, the deeper the wedge block displacement, and the tighter the support component. This is completely different from the predicament in the prior art where the impact force is proportional to the degree of damage, achieving an adaptive sturdiness, reversing the impact kinetic energy of breaking the door into the fastening potential energy to prevent falling off, greatly improving the safety limit. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the complete structure and installation of this utility model.

[0020] Figure 2 This is a schematic diagram of the present invention when it is impacted.

[0021] Figure 3 This is a schematic diagram of the present invention in its conventional state.

[0022] In the diagram: 1. Lock body; 11. Lock tongue; 2. Embedded box; 21. Strike plate assembly; 22. Slot; 23. Lever; 231. Force arm; 232. Action arm; 24. Wedge block; 25. Support component; 251. Support column; 26. Limiting groove; 3. Door frame. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-3An anti-impact self-locking structure, in addition to the lock body 1 of the prior art, also includes: a pre-embedded box 2, which in this embodiment is partially set inside the door frame 3 using existing technologies such as screws, and is not shown in the schematic diagram. A small part of the pre-embedded box 2 is located on the outer surface of the door frame 3 to facilitate the insertion of the bolt 11; a strike plate assembly 21, which is fixedly installed in the pre-embedded box 2, and the strike plate assembly 21 is provided with a slot 22 for the bolt 11 to be inserted, thereby realizing the basic function of the lock; and a lever 23, which is set in the pre-embedded box 3. Inside the embedded box 2, the middle part is hinged to the latch plate assembly 21 via a fulcrum. The lever 23 structure is a common existing technology and will not be described in detail here. One end of the lever 23 corresponds to the position of the latch 11 inside the slot 22 and is the force arm 231, while the other end is the action arm 232. The wedge block 24 is set inside the embedded box 2 and is located on the movement path of the action arm 232. Its installation direction is perpendicular to the latch 11. Therefore, when the action arm 232 is raised, it can strike the wedge block 24 perpendicularly to the latch. The movement in direction 11 pushes the nearby support component 25. The support component 25 is located inside the pre-embedded box 2 and is installed on the side of the wedge block 24 away from the lock tongue 11. The support column 251 is positioned perpendicular to the inner wall of the pre-embedded box 2. After being pushed, it will tightly squeeze the inner wall of the pre-embedded box 2 and the door frame 3, increasing the friction and making the lock less easy to break open. This achieves a process of using the force against the force: the greater the impact force, the deeper the wedge block 24 is displaced, and the tighter the support component 25 is. When the lock tongue 11 hits the internal lever 23, through the linkage between the lever 23 and the wedge block 24, it knocks the wedge block 24 into the inner direction of the door frame 3 and squeezes the support columns 251 on both sides. Finally, it drives the support component 25 to expand radially and firmly press against the inner wall of the pre-embedded box 2. This is completely different from the dilemma in the existing technology where the impact force is proportional to the degree of damage. It achieves an adaptive rigidity, which reverses the impact kinetic energy of breaking the door into the fastening potential energy to prevent falling off, greatly improving the safety limit.

[0025] Please see Figures 2-3 The support component 25 includes at least one pair of support columns 251. In specific use, the number of support columns 251 can be changed according to the preset strength. The support column 251 has an inclined surface on the side near the wedge block 24. The end of the wedge block 24 near the support column 251 has an inclined surface that matches the inclined surface of the support column 251, so that the wedge block can push the support column 251 to both sides. The surface of the end of the support column 251 near the inner wall of the embedded box 2 is textured, which can increase the friction between the support column 251 and the inner wall of the embedded box 2, prevent slippage and force loss, and reduce the force-bearing area in the vertical direction, making the force more concentrated.

[0026] Please see Figures 2-3The pre-embedded box 2 is provided with a limiting groove 26 to limit the movement path of the support column 251 and the wedge block 24. The support column 251 and the wedge block 24 are set inside the limiting groove 26 to avoid slippage and functional failure. The mating surface between the slot 22 and the latch 11 is asymmetrical. A clearance for transmitting impact force is reserved on the side facing the force arm 231. At the same time, the lever 23 is a force-saving lever. The length of the force arm 231 is greater than the length of the action arm 232. While ensuring that the door lock can be used normally, the lever 23 amplifies the impact force of the latch 11 on the force arm 231, thereby driving the movement of the action arm 232. The end of the action arm 232 is in planar contact with the wedge block 24, making the impact surface of the force more precise.

[0027] In summary, the anti-impact self-locking structure provided by this utility model, by introducing a pre-embedded box 2 deeply embedded in the door frame 3 as a high-strength load-bearing skeleton, fundamentally solves the fatal flaw of traditional lock plates being easily pulled out due to point fixation. Its ingenious internal lever 23 and wedge block 24 pure mechanical transmission chain can, at the instant of external impact, reverse the destructive impact kinetic energy into a tightening potential energy that causes the supporting component 25 to expand radially, achieving an adaptive rigid connection. This solution is simple, reliable, and low-cost, requiring no external power, and represents a leap from passive bearing to active self-locking protection, providing door lock systems with unprecedented resistance to violent impacts.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-collision self-locking structure, characterized in that, apart from the lock body (1), include: The pre-embedded box (2) is partially set inside the door frame (3); The latch plate assembly (21) is fixedly installed in the pre-embedded box (2). The latch plate assembly (21) is provided with a slot (22) for the latch (11) to be inserted. The width of the slot (22) is greater than that of the latch (11). The lever (23) is set inside the embedded box (2), and its middle part is hinged to the latch plate assembly (21) through the fulcrum. One end of the lever corresponds to the position of the latch (11) inside the slot (22) and is the force arm (231), and the other end is the action arm (232). The wedge block (24) is set inside the pre-embedded box (2) and located on the movement path of the action arm (232), with the installation direction perpendicular to the locking tongue (11). The support component (25) is disposed inside the pre-embedded box (2) and installed on the side of the wedge block (24) away from the latch (11); When the locking tongue (11) strikes the force arm (231), the action arm (232) pushes the wedge block (24) to move, and the wedge block (24) drives the support component (25) to expand radially and press against the inner wall of the pre-embedded box (2).

2. The anti-collision self-locking structure according to claim 1, characterized in that: The support component (25) includes at least one pair of support columns (251), the support column (251) has an inclined surface on the side near the wedge block (24), and the wedge block (24) has an inclined surface at one end near the support column (251) that matches the inclined surface of the support column (251).

3. The anti-collision self-locking structure according to claim 2, characterized in that: The support column (251) is positioned perpendicular to the inner wall of the pre-embedded box (2).

4. The anti-collision self-locking structure according to claim 2, characterized in that: The support column (251) has a textured surface on one end of the inner wall of the pre-embedded box (2).

5. The anti-collision self-locking structure according to claim 2, characterized in that: The pre-embedded box (2) is provided with a limiting groove (26) inside, and the support column (251) and the wedge block (24) are provided inside the limiting groove (26).

6. The anti-collision self-locking structure according to claim 1, characterized in that: The mating surfaces of the slot (22) and the latch (11) are asymmetrical, with an movable gap reserved on the side facing the force arm (231) for transmitting impact force.

7. The anti-collision self-locking structure according to claim 1, characterized in that: The end of the actuator arm (232) is in planar contact with the wedge block (24).

8. The anti-collision self-locking structure according to claim 1, characterized in that: The lever (23) is a force-saving lever, and the length of the force-receiving arm (231) is greater than the length of the action arm (232).

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