Modular lock structure easy to assemble
By using a wedge-shaped expander and sealing ring design, combined with modular lock cylinder components and standardized joints, the problems of outdoor locks being susceptible to corrosion and cumbersome assembly are solved, thereby improving the durability and assembly efficiency of the locks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YIDIAN TECH CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-23
AI Technical Summary
Existing outdoor locks are susceptible to wind and rain erosion, which can cause them to jam. They also have a short lifespan, are cumbersome to assemble, and lack modular structures.
The inverted triangular wedge head of the wedge expander is inserted into the movable block slot, and is protected by a sealing ring and a conical rubber plug. The lock cylinder assembly is modularly designed, and the outer shell and mounting plate are standardized to achieve modular assembly.
It significantly improves the durability and assembly efficiency of locks, extends service life, prevents jamming, simplifies the assembly process, and enhances security.
Smart Images
Figure CN224396224U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock structure, and in particular to a modular lock structure that is easy to assemble. Background Technology
[0002] In existing technologies, lock structures frequently exposed to outdoor environments are prone to jamming after prolonged use due to constant exposure to wind, rain, dust, and other external substances. Furthermore, malfunctions in key components of the locking mechanism can lead to difficulty in opening or easy opening. Additionally, current locks lack modular structures, making assembly cumbersome.
[0003] In view of this, this technical solution proposes a modular lock structure that is easy to assemble. The internal lock cylinder component adopts a wedge-shaped mechanism that is not easy to "jam" as the unlocking means. The lock head is controlled by opening and closing on both sides. The mechanical linkage is simple. The individual lock cylinder component is not only easy to assemble, but the entire lock is also easy to assemble with external fasteners. It is simple to use, has strong protective performance, and is easy to maintain. Utility Model Content
[0004] The present invention aims to at least partially solve one of the technical problems in the related technologies. Therefore, the main objective of this invention is to provide an easy-to-assemble modular lock structure, addressing the issues of existing locks being susceptible to corrosion and damage after prolonged outdoor use, having a short service life, lacking a modular structure, and being difficult to assemble.
[0005] To achieve the above objectives, this utility model provides a modular lock structure that is easy to assemble, comprising a lock body consisting of an outer shell and an internal lock cylinder assembly.
[0006] The lock cylinder assembly includes two symmetrically arranged movable blocks. The two movable blocks form a slot on one side, and at both ends opposite the slot, they extend inward to form opposing locking heads. Each of the two movable blocks is provided with a movable block return spring.
[0007] A wedge-shaped expander is provided behind the movable block. The wedge-shaped expander includes a wedge-shaped head disposed on the upper end of a carrier plate. The wedge-shaped head is inverted triangular in shape, and the tip of the triangle is directly opposite the opening of the slot. The carrier plate also has a return spring located below the wedge-shaped head and a spring seat located at the top of the return spring. A through hole is provided at the bottom of the return spring.
[0008] A lock head is provided on one side of the movable block, and the lock head has a locking hole corresponding to the locking head. A lock head return spring is provided at the bottom of the lock head.
[0009] The lock cylinder has a toothed surface at its bottom, and a tab corresponding to the through hole is provided on the toothed surface. One end of the toothed surface has a hole for inserting a key, and the other end has a toothed surface return spring.
[0010] The outer housing surface has a groove for cooperating with the lock head to form a lock hole, and a through hole for the lock head to pass through is formed near the groove. On the other side of the outer housing, a mounting plate is formed to encapsulate the lock cylinder assembly with the outer housing and for mounting to an external object.
[0011] As a further embodiment of this utility model, the mounting plate is provided with a conical rubber plug for damping external vibrations, and the front end of the conical rubber plug passes through the outer shell and communicates with the outside.
[0012] As a further improvement of this utility model, limiting blocks are provided on both sides of the bottom of the wedge-shaped expander.
[0013] As a further embodiment of this utility model, the mounting plate is provided with a lock head support seat that contacts the end of the lock head.
[0014] As a further improvement of this utility model, the hobbing gear is also provided with a limiting head located on the rotation path of the paddle.
[0015] As a further embodiment of this utility model, an anti-tampering socket is provided on one side of the outer casing at the position corresponding to the socket.
[0016] As a further improvement of this utility model, a sealing ring is provided at the joint between the outer housing and the mounting plate.
[0017] The beneficial effects of this utility model are as follows:
[0018] This modular lock structure addresses the shortcomings of existing outdoor locks, such as susceptibility to corrosion and jamming, and cumbersome assembly. Through core structural innovation, it significantly improves durability and assembly efficiency. Traditional locks are prone to mechanical jamming due to dust and rust accumulation under wind and rain. This solution uses a wedge-shaped expander with an inverted triangular wedge head that precisely inserts into the slot of the movable block. The inclined plane principle pushes the movable block open, preventing jamming from the outset. Combined with a sealing ring at the junction of the outer shell and the mounting plate to form a dust and water barrier, and a conical rubber plug on the mounting plate to absorb vibration, this triple protection significantly extends the outdoor lifespan. To address assembly difficulties, the solution pre-assembles the lock cylinder components into independent modules (including the movable block, wedge expander, and gear hobbing). The outer shell has standard through holes and slots to match the lock cylinder. The mounting plate serves both to encapsulate the lock cylinder and fix the base, enabling modular assembly (e.g., the mounting plate is fixed to a door frame or other object and then covers the shell). The lock cylinder is linked internally through the through holes, greatly simplifying the process. Both ends of the symmetrical movable blocks are equipped with reset springs, ensuring reset even if one side fails. The bottom limit block of the wedge expander prevents displacement, and its reset spring is precisely linked to the hobbing plate through a through hole. The upper limit head of the hobbing plate constrains the key rotation angle, ensuring that the wedge head only moves the necessary distance. The lock head support at the bottom of the lock head supports the end of the lock head, and together with the lock head reset spring, ensures smooth extension and retraction. The outer housing also features anti-tamper holes to prevent illegal prying, and the standardized mounting plate supports compatibility with various structures such as sensors. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the technical solutions of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of the lock body in this utility model.
[0021] Figure 2 This is a schematic diagram showing the mounting plate on the back of the lock body in this utility model.
[0022] Figure 3 This is a preliminary disassembly diagram of the main components of the lock body in this utility model.
[0023] Figure 4 This is a schematic diagram of the external shell structure in this utility model.
[0024] Figure 5 This is a partially enlarged schematic diagram of the lock cylinder assembly in this utility model.
[0025] Figure 6This is a disassembly diagram of the various components of the lock cylinder assembly in this utility model.
[0026] Figure 7 This is a disassembly diagram of the movable block and lock head in this utility model.
[0027] Figure 8 This is a schematic diagram of the components of the wedge expander in this utility model.
[0028] Figure 9 This is a schematic diagram of the assembly of the product and sensor according to this utility model.
[0029] Figure 10 This is a schematic diagram of another assembly mode of the product of this utility model with the external structure.
[0030] [Explanation of Markings on Main Components / Assemblies]
[0031] label name label name 1 Lock body 1020 Snap 10 Lock cylinder assembly 1021 Lock head return spring 100 wedge expander 1022 Lock head support base 1000 carrier board 103 Gear hobbing 1001 wedge head 1030 Pick 1002 Spring seat 1031 Socket 1003 Return spring 1032 Gear hobbing return spring 1004 Limit block 1033 Limit head 1005 Through hole 2 Mounting plate 101 Active Block 20 Conical rubber stopper 1010 Card Header 3 outer casing 1011 Movable block return spring 30 Via 1012 slot 31 tank 1013 stop 4 key 102 lock 5 sensor Detailed Implementation
[0032] as follows:
[0033] Please see the appendix Figure 1-10 ,
[0034] The main structure includes a lock body (1) consisting of an outer shell (3) and an internal lock cylinder assembly (10). The lock cylinder assembly (10) includes two symmetrically arranged movable blocks (101). The two movable blocks (101) form a slot (1012) on one side. At the two ends opposite to the slot (1012), and extending inward, oppositely placed latches (1010) are formed. Movable block return springs (1011) are respectively provided at both ends of the two movable blocks (101). A wedge-shaped expander (100) is provided behind the 01), the wedge-shaped expander (100) includes a wedge-shaped head (1001) disposed on the upper end of a carrier plate (1000), the wedge-shaped head (1001) is in the shape of an inverted triangle, and the tip of the triangle is directly opposite the opening of the slot (1012). The carrier plate (1000) is also provided with a return spring (1003) located below the wedge-shaped head (1001) and a spring seat (1002) located on the top of the return spring (1003). The bottom of the spring (1003) has a through hole (1005), and a lock head (102) is provided on one side of the movable block (101). The lock head (102) has a locking hole (1020) corresponding to the locking head (1010). The bottom of the lock head (102) has a lock head return spring (1021), and the bottom of the lock head (102) has a hobbing tooth (103). The hobbing tooth (103) has a paddle (1030) corresponding to the through hole (1005). One end is provided with a socket (1031) for inserting a key (4), and the other end is provided with a hobbing return spring (1032). The surface of the outer housing (3) is provided with a groove (31) for cooperating with the lock head (102) to form a lock hole, and a through hole (30) for the lock head (102) to pass through is provided near the groove (31). On the other side of the outer housing (3), a mounting plate (2) is formed to encapsulate the lock cylinder assembly (10) and the outer housing (3) and for mounting to an external object.
[0035] The working principle is as follows:
[0036] This technical solution significantly improves the durability and corrosion resistance of locks in harsh outdoor environments. Traditional locks are prone to jamming or component failure under the influence of wind, rain, and dust. This solution employs a triple protection mechanism: the inverted triangular wedge head (1001) of the wedge expander (100) is precisely inserted into the slot (1012) formed by the movable block (101), using the principle of inclined plane to push open the movable block (101), thus preventing mechanical jamming caused by dust accumulation or rust from the source; a sealing ring is set at the joint between the outer shell (3) and the mounting plate (2) to form a physical dust and water barrier; and the conical rubber plug (20) embedded in the mounting plate (2) can absorb external vibrations and prevent impurities from entering the lock cylinder (10). These designs greatly extend the service life of the lock.
[0037] In terms of ease of assembly, this solution thoroughly optimizes the cumbersome process of traditional locks through modular design. The lock cylinder assembly (10), as a pre-assembled independent unit, includes core components such as a movable block (101), a wedge expander (100), and a gear hobbing (103). The outer shell (3) has standard through holes (30) and grooves (31) to match the lock head (102). The mounting plate (2) serves the dual function of encapsulating the lock cylinder assembly (10) and fixing it to an external object. During assembly, simply place the lock cylinder assembly (10) into the shell (3), encapsulate it with the mounting plate (2), and fix it to a base such as a door frame. The outer shell (3) can then cooperate with the lock head (102) to form a complete lock hole. This modular assembly mode significantly improves installation and maintenance efficiency, and allows for quick disassembly and replacement of individual modules during maintenance.
[0038] To address the issue of mechanical linkage failure, the solution employs a multi-layered fault-prevention design. Both ends of the symmetrical movable block (101) are equipped with movable block return springs (1011) to ensure reset even in the event of a single-sided failure. A limit block (1004) is installed at the bottom of the wedge-shaped expander (100) to prevent displacement. Its return spring (1003) is precisely linked to the paddle (1030) of the hobbing gear (103) through a bottom through-hole (1005). The limit head (1033) of the hobbing gear (103) constrains the rotation angle of the paddle (1030). The key (4) is inserted... When the hole (1031) drives the hobbing gear (103), the paddle (1030) pushes the wedge expander (100) through the through hole (1005) to form a linear transmission chain that drives the key (4) to drive the hobbing gear (103), the hobbing gear (103) pushes the wedge head (1001), the wedge head (1001) expands the movable block (101), and the movable block (101) controls the lock head (102). A lock head return spring (1021) and a lock head support seat (1022) are added to the bottom of the lock head (102) to ensure the smooth extension and retraction of the lock tongue.
[0039] Security is enhanced by the anti-tampering socket located on the outer housing (3) corresponding to the key (4) jack (1031), which prevents unauthorized prying. The standardized design of the mounting plate (2) supports diverse installation modes, such as flexible assembly with sensors (5) or external structures, to meet the needs of different scenarios.
[0040] Reference Appendix Figure 3 In a preferred embodiment of this utility model, the mounting plate (2) is provided with a conical rubber plug (20) for reducing external vibration, and the front end of the conical rubber plug (20) passes through the outer shell (3) and communicates with the outside.
[0041] Assembly actions, for example,
[0042] After assembling the entire lock body (1), it is directly fixed to an external object via the mounting plate (2) on its back, such as an attached object. Figure 9 , 10The fixing method.
[0043] Reference Appendix Figure 8 In a preferred embodiment of this utility model, the wedge expander (100) is provided with limiting blocks (1004) on both sides of its bottom.
[0044] The limiting blocks (1004) set on both sides of the bottom of the wedge expander (100) mainly serve to accurately position and prevent deviation. When the key (4) is inserted, it drives the hobbing gear (103) to rotate. The paddle (1030) of the hobbing gear (103) will push the through hole (1005) at the bottom of the wedge expander (100) to move it upward. At this time, the limiting block (1004) is locked on the internal track of the outer shell (3) to ensure that the wedge expander (100) can only move vertically up and down and will not sway left and right, so that the inverted triangular wedge head (1001) is always aligned with the center of the slot (1012) of the movable block (101).
[0045] Reference Appendix Figure 6 In a preferred embodiment of this utility model, the mounting plate (2) is provided with a lock head support (1022) that contacts the end of the lock head (102).
[0046] The lock head support (1022) is fixed on the mounting plate (2) and directly supports the end of the lock head (102). Its function is to maintain the stability of the extension and retraction movement of the lock head (102). When the lock head (102) is subjected to external impact or frequent extension and retraction, the support (1022) can disperse the impact force and prevent the bottom of the lock head (102) from shifting. This prevents the lock head (102) from rubbing and getting stuck with the through hole (30) of the outer housing (3) due to tilting under force. The support (1022) provides a reverse support point for the lock head return spring (1021) to ensure that the lock head (102) maintains a straight movement trajectory each time it pops out and retracts, thereby improving the reliability of the action and the service life of the components.
[0047] Reference Appendix Figure 6 In a preferred embodiment of this utility model, the hobbing gear (103) is further provided with a limiting head (1033) located on the rotation path of the paddle (1030).
[0048] The limiting head (1033) on the hob (103) is located at the end of the rotation path of the paddle (1030) to precisely control the operating range of the key (4). When the key (4) is inserted into the socket (1031) and the hob (103) is rotated, the paddle (1030) will push the through hole (1005) at the bottom of the wedge expander (100). The limiting head (1033) prevents the key (4) from rotating too much, causing the paddle (1030) to over-push the wedge expander (100) or hit other parts.
[0049] In a preferred embodiment of this utility model, an anti-tampering socket is provided on one side of the outer shell (3) at the corresponding position of the socket (1031).
[0050] The anti-tampering jack can only be used to disassemble the outer casing (3) when the key (4) is rotated to the same angle as the unlocking.
[0051] In a preferred embodiment of this utility model, a sealing ring is provided at the joint between the outer shell (3) and the mounting plate (2).
[0052] The sealing ring is designed to prevent external moisture and dust from entering and causing problems such as malfunctions and jamming of the lock cylinder (10) structure, thus extending its service life.
[0053] The above are merely preferred embodiments of the present utility model and do not limit the patent scope of the present utility model. Any equivalent structural transformations made using the contents of the present utility model specification and drawings under the concept of the present utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A modular lockset structure that is easy to assemble, characterized in that, include The lock body consists of an outer shell and an internal lock cylinder assembly. The lock cylinder assembly includes two symmetrically arranged movable blocks. The two movable blocks form a slot on one side, and at both ends opposite the slot, they extend inward to form opposing locking heads. Each of the two movable blocks is provided with a movable block return spring. A wedge-shaped expander is provided behind the movable block. The wedge-shaped expander includes a wedge-shaped head disposed on the upper end of a carrier plate. The wedge-shaped head is inverted triangular in shape, and the tip of the triangle is directly opposite the opening of the slot. The carrier plate also has a return spring located below the wedge-shaped head and a spring seat located at the top of the return spring. A through hole is provided at the bottom of the return spring. A lock head is provided on one side of the movable block, and the lock head has a locking hole corresponding to the locking head. A lock head return spring is provided at the bottom of the lock head. The lock cylinder has a toothed surface at its bottom, and a tab corresponding to the through hole is provided on the toothed surface. One end of the toothed surface has a hole for inserting a key, and the other end has a toothed surface return spring. The outer housing surface has a groove for cooperating with the lock head to form a lock hole, and a through hole for the lock head to pass through is formed near the groove. On the other side of the outer housing, a mounting plate is formed to encapsulate the lock cylinder assembly with the outer housing and for mounting to an external object.
2. The modular lock structure for easy assembly according to claim 1, characterized in that, The mounting plate is provided with a conical rubber plug for damping external vibrations, and the front end of the conical rubber plug passes through the outer housing and communicates with the outside.
3. The modular lock structure for easy assembly according to claim 1, characterized in that, The wedge-shaped expander has limiting blocks on both sides of its bottom.
4. The modular lock structure for easy assembly according to claim 1, characterized in that, The mounting plate is provided with a lock head support seat that contacts the end of the lock head.
5. The modular lock structure for easy assembly according to claim 1, characterized in that, The hobbing gear is also provided with a limiting head located on the rotation path of the paddle.
6. The modular lock structure for easy assembly according to claim 1, characterized in that, On one side of the outer casing, an anti-tampering socket is provided at the position corresponding to the socket.
7. The modular lock structure for easy assembly according to claim 1, characterized in that, A sealing ring is provided at the joint between the outer housing and the mounting plate.