Shockproof and anti-drop door lock structure

Abstract

The utility model relates to door lock structure technical field, concretely is a kind of shockproof and anti-drop type door lock structure, including lock upper cover and lock lower cover are formed by stamping and are enclosed to form internal cavity, lock body one side is equipped with the opening slot for the lock hook to extend into;Claw hook is rotatably installed in cavity by first pivot, and with lock hook is engaged to realize mechanical locking;Stop block is rotatably installed in cavity by second pivot, second engagement surface on it and the first engagement surface on claw hook are engaged to form self-locking;Electromagnet assembly is fixedly installed on lock lower cover, its slide bar and stop block driving arm contact, for driving stop block rotation to remove engagement;Microswitch is installed on lock lower cover, for detecting claw hook position state.The utility model is through product lock upper cover and lower cover are formed by stamping, lock upper cover and lock lower cover design sunken platform hole and boss hole, reduce threaded rivet, lock lower cover design has boss, reduce small rivet, reach the purpose of reducing material and miniaturization simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of door lock structure technology, and in particular to a shockproof and anti-disengagement door lock structure. Background Technology

[0002] With the widespread application of industrial automation and intelligent cabinets (such as intelligent express cabinets, power distribution cabinets, communication cabinets, vending machines, etc.), the security, reliability, and cost control of door lock structures have increasingly become key design factors. Traditional electromagnetic locks or electronically controlled locks often adopt multi-component splicing structures, relying on a large number of fasteners (such as screws and rivets) for assembly. This not only results in complex structures and large volumes, but also makes them prone to loosening, disengagement, or even accidental opening due to vibration and impact during long-term use, posing safety hazards.

[0003] The following technical problems are commonly found in existing door lock structures:

[0004] First, the anti-vibration and anti-accidental opening capabilities are insufficient. When the cabinet door is subjected to external impact or continuous vibration, the engagement between the lock hook and the stop component is easily loosened due to inertial force or impact force, causing the lock to unlock automatically without authorization, which seriously affects the safe operation of the equipment and the safety of users' property.

[0005] Secondly, the anti-detachment structure has poor reliability. Traditional hooks and stop blocks are mostly simple snap-fit ​​or point contact, lacking a self-tightening mechanism. During long-term use, gaps are easily created due to wear or failure of elastic elements, leading to the risk of detachment. Although some structures add spring preload, the force direction is unreasonable, failing to achieve the effect of tightening with vibration.

[0006] Secondly, the structure is complex and contains numerous parts. Existing lock bodies are typically composed of multiple independent metal parts connected by screws or rivets, which not only increases material costs and assembly time but also results in a large overall size, hindering the miniaturization and integration of the equipment. Furthermore, the extensive use of rivets and fasteners increases the complexity of the manufacturing process and the defect rate.

[0007] Finally, manufacturing and transportation costs are high. Due to structural redundancy, heavy weight, and large volume, the material consumption per unit product is high, and the packaging space occupied is large, which significantly increases warehousing and transportation costs, hindering large-scale promotion and application.

[0008] Publication No.: CN210659596U A six-compartment door lock includes a front panel and a rear panel that interlock, forming a hollow box. The top of the box has a latch groove, and the bottom has a cable outlet. A lock cylinder mechanism that engages with a ring latch for opening and closing is installed inside the box. The lock cylinder mechanism includes a bolt, a locking rod, a microswitch that contacts the bolt, and a solenoid valve connected to the locking rod. A pull rod is connected to the end of the solenoid valve, and a return spring is sleeved on the outside of the pull rod. One end of the locking rod that engages with the bolt has a vertical hook-shaped engagement part, and the other end of the locking rod has an open loop groove that engages and hooks with the pull rod. The hook end of the open loop groove and the pull rod is vertically curved. However, the connection between the locking rod and the bolt in this design is not reliable enough, and the bolt is prone to disengagement under vibration or impact.

[0009] In summary, there is an urgent need to design a shockproof and anti-disengagement door lock structure to solve the problems of insufficient reliability, high cost, and large size in existing technologies. Summary of the Invention

[0010] In view of this, the present invention aims to propose a shockproof and anti-disengagement door lock structure to solve the problems of insufficient reliability, high cost and large size in the existing technology.

[0011] The technical solution of this utility model is implemented as follows:

[0012] This utility model discloses a shockproof and anti-disengagement door lock structure, including a lock top cover, a lock bottom cover, a latch, a stop block, an electromagnet assembly, a micro switch, and a lock hook;

[0013] The upper lock cover and the lower lock cover are formed by stamping and enclosing to form an internal cavity. The lock body is formed by closing the upper lock cover and the lower lock cover. An opening groove for the lock hook to extend into is provided on one side of the lock body.

[0014] The hook is rotatably installed in the cavity via the first rotating shaft and engages with the locking hook to achieve mechanical locking;

[0015] The stop block is rotatably installed in the cavity via a second rotating shaft, and its second meshing surface meshes with the first meshing surface on the hook to form a self-locking mechanism.

[0016] The lower lock cover and the upper lock cover are provided with inward protrusions, and the top end faces of the two protrusions together form a limiting space for restricting the axial displacement of the hook and the stop block along the first rotating shaft.

[0017] The electromagnet assembly is fixedly installed on the lock cover, and its slide bar contacts the stop block drive arm to drive the stop block to rotate and disengage.

[0018] The micro switch is installed on the lock cover and is used to detect the position status of the latch.

[0019] Furthermore, the protrusion is provided with a threaded hole.

[0020] Furthermore, the first and / or second rotating shafts are threaded rivets, which pass through the shaft hole of the catch or stop block and are screwed into the threaded hole to achieve rotational support, axial positioning and structural fastening.

[0021] Furthermore, it also includes a hook spring, one end of which is fixed to the first pivot of the lock cover, and the other end is connected to the spring lug of the hook, applying a torque to the hook to make it rotate counterclockwise.

[0022] Furthermore, it also includes a return spring, which acts between the stop block and the lock cover, applying torque to the stop block to keep its second engagement surface in close contact with the first engagement surface of the hook.

[0023] Furthermore, the end of the hook adjacent to the stop block is provided with a relief structure. When the lock hook is impacted and moves into the lock body, the relief structure contacts the second rotating shaft of the stop block and converts the impact force into a pressing force on the rotating shaft, preventing the stop block from rotating in the unlocking direction.

[0024] Furthermore, the upper lock cover is provided with a countersunk hole, and the lower lock cover is provided with a boss hole. The two are connected by a single threaded rivet to fix the upper lock cover and the lower lock cover.

[0025] Furthermore, the upper and / or lower lock covers are provided with notches, exposing the slide rod portion of the electromagnet assembly to the outside of the lock body, thus forming an emergency manual unlocking mechanism.

[0026] Furthermore, the micro switch is positioned by engaging with the limiting boss on the lower lock cover through the micro switch front positioning hole on its housing, and is further limited by the internal structure of the upper lock cover.

[0027] Furthermore, the door lock structure is applied to the electronic door lock system of intelligent storage cabinets, vending machines, express delivery cabinets, intelligent mailboxes, electrical control distribution cabinets, or shared equipment storage compartments.

[0028] Compared with existing technologies, the shockproof and anti-disengagement door lock structure of this utility model has the following advantages:

[0029] 1. This utility model uses SPCC-SD stamping to form the upper and lower covers of the product lock. The upper and lower covers are designed with countersunk holes and boss holes to reduce threaded rivets. The lower cover is designed with a boss to reduce small rivets, thereby achieving the purpose of reducing materials and miniaturization.

[0030] 2. This utility model achieves the purpose of preventing disengagement by designing the interlocking surfaces of the stop block and the hook, as well as the counterclockwise force of the hook spring and the upward force of the return spring.

[0031] 3. Through the special design of the stop block and hook structure of the parts, when the cabinet door is impacted, the lock hook will not touch the upper and lower covers and their riveting parts. Instead, it will drive the hook to contact the pivot position of the stop block, press the stop block tightly, and prevent it from rotating in the unlocking direction, thereby achieving the effect of preventing impact and vibration from opening the door.

[0032] 4. This utility model significantly reduces the size and weight of the product, thereby reducing the amount of materials and lowering material, packaging, and transportation costs. Attached Figure Description

[0033] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0034] Figure 1 This is a schematic diagram of the installation structure of the door lock structure of this utility model;

[0035] Figure 2 This is an exploded structural diagram of the door lock structure of this utility model;

[0036] Figure 3 This is an assembly diagram of the lock cover and its various parts for this utility model.

[0037] Figure 4 This is a schematic diagram of the unlocking process of the door lock structure after being powered on;

[0038] Figure 5 This is a schematic diagram of the door lock structure of this utility model being subjected to external impact.

[0039] Figure label:

[0040] 1. Locking top cover; 101. Recessed hole; 2. Locking bottom cover; 201. Boss hole; 202. Limiting boss; 3. Hook; 301. First engagement surface; 302. Avoidance structure; 3a. Hook spring; 4. Stop block; 401. Second engagement surface; 5. Threaded rivet; 6. Electromagnet assembly; 6a. Slide rod; 6b. Return spring; 7. Micro switch; 7a. Micro switch front positioning hole; 8. Locking hook; 8a. Cabinet door. Detailed Implementation

[0041] To make the technical means and objectives and effects of this utility model easier to understand, the embodiments of this utility model will be described in detail below with reference to specific figures.

[0042] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state. They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0043] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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.

[0045] SPCC-SD: SPCC was originally the name of general-purpose cold-rolled carbon steel sheet and strip in Japanese standard (JIS). S indicates steel, P indicates sheet, C indicates cold-rolled, and the fourth C indicates ordinary grade; that is, general-purpose ordinary grade cold-rolled steel sheet.

[0046] This utility model provides a shockproof and anti-derailment door lock structure, suitable for intelligent storage cabinets, vending machines, express delivery lockers, intelligent mailboxes, electrical control distribution cabinets, shared equipment storage compartments, and other equipment requiring electrically controlled locking. It achieves highly reliable, vibration-resistant, and accident-proof door lock control. This structure maintains stable locking even under extreme vibration, impact, or long-term use environments, preventing accidental door opening due to external forces or equipment vibration, thus improving overall equipment safety and lifespan. Simultaneously, this design focuses on structural simplification, minimizing the number of parts, and optimizing the assembly process, thereby achieving product miniaturization and lightweighting, significantly reducing material costs, packaging costs, and long-distance transportation costs, making it particularly suitable for large-scale deployment and export needs.

[0047] like Figure 1-5 As shown, the anti-vibration and anti-disengagement door lock structure provided by this utility model mainly includes an upper lock cover 1, a lower lock cover 2, a latch 3, a stop block 4, a threaded rivet 5, an electromagnet assembly 6, a micro switch 7, and a lock hook 8.

[0048] The upper lock cover 1 and the lower lock cover 2 are integrally formed from SPCC-SD cold-rolled steel sheet through a stamping process. The material has excellent mechanical strength, formability, and corrosion resistance, and can maintain structural integrity under various environmental conditions. As a general-purpose cold-rolled carbon steel sheet, SPCC-SD meets the requirements of industrial locks for structural components in terms of surface quality, flatness, and thickness uniformity, balancing economy and performance.

[0049] The upper lock cover 1 and the lower lock cover 2 are positioned opposite each other, and after being aligned with matching slots and mounting holes in their peripheral design, they enclose an internal cavity. This cavity houses the core transmission and locking components of the door lock, including a rotatable hook 3, a stop block 4, an electromagnet assembly 6, and its linkage mechanism. The cavity contains multiple precision-stamped mounting bosses, shaft holes, and limiting structures for accurately positioning and installing each functional component, ensuring their relative positional stability even under vibration. The upper lock cover 1 and the lower lock cover 2 are fastened together using a single threaded rivet 5 passing through the countersunk hole 101 and the boss hole 201. This connection method not only simplifies the traditional multi-rivet assembly process but also improves the overall structural rigidity and torsional resistance, effectively preventing loosening of the connection due to vibration.

[0050] An opening groove is provided on one side of the lock body, extending through the edges of the upper lock cover 1 and the lower lock cover 2, for the lock hook 8, which is mounted on the cabinet door, to extend into the lock body. When the cabinet door is closed, the lock hook 8 is inserted along the path of the opening groove and comes into contact with the latch 3, which is in its initial position, pushing it to rotate at a certain angle until the lock hook 8 is captured by the hook of the latch 3, thus achieving mechanical locking. At this time, the cabinet door cannot be directly pulled open from the outside; the locking state can only be released through electronic control or emergency manual means.

[0051] The latch 3 is rotatably mounted in the cavity of the lock cover 2 via a first rotating shaft, located on one side of the opening slot. Its structure includes a hook portion, a spring lug, and a first engagement surface 301 that mates with the stop block 4. The hook portion of the latch 3 is designed with a guide slope to facilitate the smooth insertion and engagement of the lock hook 8. A latch spring 3a is provided at the tail of the latch 3. One end of the spring is fixed to the first rotating shaft of the lock cover 2, and the other end is connected to the spring lug of the latch 3. This spring applies a continuous counterclockwise torque to the latch 3, ensuring that it always tends to return to the unlocked position without external force, thus ensuring tight contact between the latch 3 and the second engagement surface 401 of the stop block 4.

[0052] Preferably, the first pivot can be a boss that locks the lower cover 2 or the upper cover 1, or it can be a threaded rivet 5.

[0053] Preferably, the spring lug is located at one end of the hook 3 adjacent to the stop block 4. It can be a small hook, a small cylinder, or a protrusion with a notch. The purpose is to effectively transmit the elastic force of the hook spring 3a to the body of the hook 3, so that the hook 3 is subjected to a continuous counterclockwise rotational torque. This torque force makes the hook 3 tend to remain in a position of tight engagement with the stop block 4 when it is not subjected to external force, ensuring the reliability of locking and preventing the spring from slipping off.

[0054] The stop block 4 is also rotatably mounted in the cavity via a second pivot, positioned opposite the hook 3 on the other side of the opening slot. The stop block 4 is designed with a second engagement surface 401 that matches the first engagement surface 301 of the hook 3, a drive arm that contacts the slide rod 6a of the electromagnet assembly 6, and a spring seat for mounting the return spring 6b. In the normal power-off state, the return spring 6b applies a continuous counter-clockwise rotational torque to the stop block 4, causing its second engagement surface 401 to tightly engage with the first engagement surface 301 of the hook 3, forming a mechanical self-locking mechanism. This engagement pair employs a bevel and protrusion design; when the hook 3 is subjected to an opening force transmitted from the lock hook 8, it further presses the stop block 4, preventing rotation and thus achieving an anti-disengagement function under vibration.

[0055] Preferably, the second pivot can be a boss that locks the lower cover 2 or the upper cover 1, or it can be another threaded rivet 5.

[0056] To ensure the engagement of the latch 3 and the stop block 4, the first and second rotating shafts can be mounted on the inward protrusions of the lower lock cover 2 and / or the upper lock cover 1. The top end face of the protrusion and the inner wall surface of the oppositely positioned upper lock cover 1 or lower lock cover 2 together form a narrow and precise axial space. This space directly restricts the latch 3 and the stop block 4 to rotate only within it, preventing them from moving along the axis of the rotating shaft, thus ensuring reliable engagement. The protrusion is formed directly on the lower lock cover 2 and / or upper lock cover 1 using a precision stamping process, avoiding the problems of clearance, loosening, or deformation that may occur due to the installation of independent shaft pins. As part of the cover plate, the protrusion has extremely high structural rigidity, providing a solid and stable support foundation for the entire motion mechanism.

[0057] The protrusion has two threaded holes, which respectively mate with the first or second rotating shaft. In this case, the first and / or second rotating shafts are threaded rivets 5. The first and second rotating shafts are not independent pins, but are directly served by the threaded rivets 5. The threaded part of the threaded rivet 5 passes through the shaft hole of the rotating component to be fixed, such as the hook 3 or the stop block 4, and is screwed into the threaded hole of the protrusion, thus finally fastening the connection. This simultaneously achieves the triple functions of rotational support, axial limiting, and structural fastening, directly reducing the number of parts, procurement costs, and warehousing management complexity.

[0058] The electromagnet assembly 6 includes a slide rod 6a and a return spring 6b. The return spring 6b is sleeved outside the slide rod 6a, with one end abutting against the electromagnet housing and the other end pushing upward against the stop block 4, causing its second engagement surface 401 to press tightly against the first engagement surface 301 of the hook 3, forming a self-tightening anti-disengagement structure. The electromagnet assembly 6 is fixedly installed on the side of the lock cover 2 away from the opening slot. The slide rod 6a inside can move linearly downward when energized. The top of the slide rod 6a contacts the drive arm of the stop block 4. When an unlocking signal is received, the electromagnet is energized to generate magnetic force, attracting the slide rod 6a to move downward, compressing the return spring 6b, and pushing the stop block 4 to rotate clockwise around the second pivot. The rotation of the stop block 4 causes its second engagement surface 401 to disengage from the first engagement surface 301 of the hook 3, releasing the rotation restriction on the hook 3. At this time, the hook 3 can rotate counterclockwise under the action of the hook spring 3a, releasing the lock hook 8 and opening the cabinet door. After the power is cut off, the electromagnetic force disappears, and the reset spring 6b pushes the stop block 4 to rotate counterclockwise back to the initial position, preparing for the next locking.

[0059] To further enhance impact resistance and prevent accidental opening, this invention optimizes the meshing surface of the hook 3 and the stop block 4. A specific geometrically shaped clearance structure 302 is provided on the side wall adjacent to the first meshing surface 301 of the hook 3. When the cabinet door 8a is subjected to severe impact or vibration, the lock hook 8 will drive the hook 3 to move inwards towards the lock body. At this time, the clearance structure 302 of the hook 3 will preferentially contact the second pivot of the stop block 4, converting the impact force into a clamping force on the pivot of the stop block 4, preventing the stop block 4 from being lifted and thus preventing it from rotating in the unlocking direction. Simultaneously, due to the presence of the clearance structure 302, the stop block 4 gains additional movement space, allowing it to slightly displace towards the lock opening, thereby absorbing impact energy and preventing hard collisions from damaging the internal structure of the lock body. This design not only enhances impact resistance but also makes it possible to miniaturize the lock body, as components can achieve a greater effective stroke within a more compact space.

[0060] This invention also integrates an emergency manual unlocking function to handle emergencies such as power outages and electrical control system malfunctions. A notch penetrating the housing is provided at corresponding positions on the upper lock cover 1 and the lower lock cover 2. The position of this notch is precisely calculated so that the end of the slide bar 6a of the electromagnet assembly 6 or the drive arm portion connected to the stop block 4 is exposed outside the lock body. The user can use a thin rod-like tool or directly press the exposed slide bar 6a to simulate the electromagnet's action, driving the stop block 4 to rotate, releasing the lock on the hook 3, and thus manually opening the cabinet door. This design eliminates the need for an additional complex manual unlocking mechanism, fully utilizing the existing structure to achieve dual functions, significantly improving product reliability and user experience, and is especially suitable for unattended applications.

[0061] The micro switch 7 is installed inside the cavity of the lower lock cover 2, below the latch 3. Its function is to determine whether the cabinet door is fully closed and locked by detecting the position of the latch 3. When the latch 3 is in the unlocked position, its back presses down on the contact of the micro switch 7, activating the switch and sending a "door unlocked" signal to the control system. When the cabinet door is open or not fully closed, the latch 3 lifts, the micro switch 7 resets, and sends a "door closed" or "locked" signal; the opposite signal can also be used for control. The micro switch 7 has a front positioning hole 7a, which cooperates with the limiting boss 202 on the lower lock cover 2 to achieve precise axial and radial positioning. The internal structure of the upper lock cover 1 forms a protective enclosure to prevent displacement or detachment during vibration, ensuring continuous and stable signal detection.

[0062] The lock body has an opening between the electromagnetic component and the micro switch 7, which is a dedicated wiring channel on the lock body housing. Its core function is to provide a path for the power and signal lines of the electromagnet component 6 and the micro switch 7 to the outside of the lock body. By providing a dedicated and secure channel and protecting the cable edges, the risk of failure caused by cable wear from internal moving parts or cut by sharp edges is greatly reduced, thus improving the long-term reliability of the product.

[0063] In terms of overall structural layout, this utility model, through a highly integrated design, accommodates all moving parts and sensing elements within a compact space formed by the upper lock cover 1 and the lower lock cover 2. The upper lock cover 1 has a countersunk hole 101, and the lower lock cover 2 has a corresponding boss hole 201. After mating, the two are fixed together by a single threaded rivet 5, significantly reducing the material and assembly costs of traditional multi-rivet structures. The microswitch 7 is fixed using a limiting boss 202 instead of independent small rivets, greatly reducing the types and number of parts. This not only reduces material procurement costs and inventory management complexity but also simplifies the assembly process and improves production efficiency. Simultaneously, fewer parts and a more compact design significantly reduce the overall size and weight of the lock, resulting in savings in packaging materials and reduced transportation costs, offering significant advantages for large-scale production and global supply chain deployment.

[0064] In summary, this utility model successfully achieves multiple objectives—shockproof, impact-resistant opening, anti-detachment, miniaturization, and low material and transportation costs—through its innovative self-locking mechanism, dual-spring action mechanism, electromagnetic drive combined with emergency manual unlocking design, and highly integrated shell structure. The structure is compact, reliable, responsive, highly adaptable, and easy to automate, providing a high-performance, cost-effective locking solution for various intelligent electronic control cabinet doors (8a).

[0065] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A shockproof and anti-disengagement door lock structure, characterized in that, Includes a lock top cover (1), a lock bottom cover (2), a latch (3), a stop block (4), an electromagnet assembly (6), a micro switch (7), and a lock hook (8); The upper lock cover (1) and the lower lock cover (2) are formed by stamping and enclosing to form an internal cavity. The upper lock cover (1) and the lower lock cover (2) are closed to form a lock body. The lock body has an opening groove on one side for the lock hook (8) to extend into. The hook (3) is rotatably installed in the cavity via the first rotating shaft and engages with the locking hook (8) to achieve mechanical locking; The stop block (4) is rotatably installed in the cavity via the second rotating shaft, and its second meshing surface (401) meshes with the first meshing surface (301) on the hook (3) to form a self-locking mechanism; The lower lock cover (2) and the upper lock cover (1) are provided with inward protrusions. The top end faces of the two protrusions together form a limiting space for restricting the axial displacement of the hook (3) and the stop block (4) along the first rotating shaft. The electromagnet assembly (6) is fixedly installed on the lock cover (2), and its slide rod (6a) contacts the drive arm of the stop block (4) to drive the stop block (4) to rotate to disengage; The micro switch (7) is installed on the lock cover (2) and is used to detect the position status of the hook (3).

2. The shockproof and anti-disengagement door lock structure according to claim 1, characterized in that, The protrusion is provided with a threaded hole.

3. The shockproof and anti-disengagement door lock structure according to claim 2, characterized in that, The first rotating shaft and / or the second rotating shaft are threaded rivets (5). The threaded rivets (5) pass through the shaft hole of the hook (3) or the stop block (4) and are screwed into the threaded hole to achieve rotational support, axial positioning and structural fastening.

4. The shockproof and anti-disengagement door lock structure according to claim 1, characterized in that, It also includes a hook spring (3a), one end of which is fixed to the first pivot of the lock cover (2) and the other end is connected to the spring lug of the hook (3), applying a torque to the hook (3) to make it rotate counterclockwise.

5. The shockproof and anti-disengagement door lock structure according to claim 4, characterized in that, It also includes a return spring (6b) that acts between the stop block (4) and the lock cover (2) to apply a torque to the stop block (4) to keep its second engagement surface (401) in close contact with the first engagement surface (301) of the hook (3).

6. The shockproof and anti-disengagement door lock structure according to claim 5, characterized in that, The hook (3) is provided with a clearance structure (302) at one end near the stop block (4). When the lock hook (8) is impacted and the hook (3) moves into the lock body, the clearance structure (302) contacts the second rotating shaft of the stop block (4) and converts the impact force into a pressing force on the rotating shaft, preventing the stop block (4) from rotating in the unlocking direction.

7. The shockproof and anti-disengagement door lock structure according to claim 1, characterized in that, The upper cover (1) is provided with a countersunk hole (101), and the lower cover (2) is provided with a boss hole (201). The two are connected by a single threaded rivet (5) to fix the upper cover (1) and the lower cover (2).

8. The shockproof and anti-disengagement door lock structure according to claim 1, characterized in that, The upper lock cover (1) and / or lower lock cover (2) are provided with notches, so that the slide rod (6a) of the electromagnet assembly (6) is partially exposed to the outside of the lock body, thus forming an emergency manual unlocking mechanism.

9. The shockproof and anti-disengagement door lock structure according to claim 1, characterized in that, The micro switch (7) is positioned by cooperating with the limiting boss (202) on the lower cover (2) through the micro switch front positioning hole (7a) on its housing, and is limited by the internal structure of the upper cover (1).

10. The shockproof and anti-disengagement door lock structure according to any one of claims 1 to 9, characterized in that, The aforementioned door lock structure is applied to the electronic door lock system of intelligent storage cabinets, vending machines, express delivery lockers, intelligent mailboxes, electrical control distribution cabinets, or shared equipment storage compartments.

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