Embedded roller shutter door lock
By designing an embedded roller shutter door lock, the problems of cumbersome installation and poor stability in existing technologies are solved. It achieves integrated adaptation between the lock body and the roller shutter door track, improves assembly efficiency and locking stability, and supports automated and intelligent control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HONGTAI ELECTRONICS EQUIP
- Filing Date
- 2026-04-07
- Publication Date
- 2026-05-08
AI Technical Summary
Existing roller shutter door locks suffer from problems such as cumbersome installation, loose structure, poor stability, easy deformation, and bolt misalignment, making it impossible to achieve integrated adaptation between the lock body and the roller shutter door track.
An embedded roller shutter door lock was designed. The lock housing and the roller shutter door track are integrated and fixed by a positioning component. Combined with a drive mechanism, a swing component and a micro switch, a simple and efficient unlocking transmission mechanism is constructed. A guide structure is added to ensure the precise guidance and status detection of the lock tongue.
It improves assembly efficiency, reduces material costs and construction difficulty, ensures locking stability and security, realizes the automation and intelligent upgrade of locks, extends service life and reduces maintenance costs.
Smart Images
Figure CN224213954U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an embedded roller shutter door lock basin. Background Technology
[0002] Roller shutters, with their high space utilization and strong anti-theft features, are widely used in commercial shops, warehouses, banks, and other places. As a core component ensuring the security of roller shutters, the lock's structural rationality, ease of installation, and operational stability directly affect the performance of the roller shutter. Existing roller shutter locks mostly use structures such as ground hook locks and side-mounted locks, which have many shortcomings. Ground hook locks require pre-embedding in the ground grooves, which not only damages the floor finish but also easily leads to debris and water accumulation in the grooves, causing locking malfunctions and posing a tripping hazard to pedestrians. Furthermore, installation requires additional quick-drying cement for fixation, making the process cumbersome. Side-mounted locks, with their lock bodies exposed, have a loose structure and are easily deformed by external impacts. Installation also requires multiple points of fixation to the roller shutter body and the wall, resulting in low assembly efficiency. Some improved locks attempt to optimize structural compactness, but they still do not break away from traditional installation methods and cannot achieve integrated adaptation between the lock body and the roller shutter track, leading to poor overall stability after installation and problems such as bolt misalignment and jamming after long-term use. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides an embedded roller shutter door lock, which has a simple structure, is easy and reliable to assemble, has strong structural stability, and has good performance.
[0004] To achieve the above objectives, this utility model provides an embedded roller shutter door lock, including a lock housing, a positioning component, and a locking pin disposed on the roller shutter door. The positioning component includes a fitting part, an abutting part, and a connecting part for positioning with the roller shutter door track, connected in sequence. The fitting part abuts against one side wall of the lock housing, and the abutting part abuts against the other side wall of the lock housing. The fitting part is arranged perpendicular to the abutting part, and the connecting part is arranged perpendicular to the abutting part. A connecting hole for fixed connection with the track is provided on the connecting part. The lock housing is provided with a latch, which has an abutting inclined surface for retracting into the lock housing by the locking pin and a limiting surface for restricting the sliding of the locking pin by abutting against the side wall of the locking pin. A push spring for keeping the latch outside the lock housing abuts between the latch and the lock housing. The lock housing is also provided with a driving mechanism for driving the latch to retract into the lock housing.
[0005] The advantages of this design are as follows: This design achieves integrated positioning and fixation of the lock housing and the roller shutter track through the positioning component, eliminating the need for ground trenching and pre-embedding as required by hook locks, and avoiding the cumbersome multi-point fixing operations of side-mounted locks, significantly improving assembly efficiency. The fitting part and the contact part form a bidirectional contact limit on the lock housing, ensuring accurate positioning and no loosening after installation, fundamentally solving the problem of bolt offset that easily occurs with traditional locks over long-term use. Furthermore, it achieves stable installation without additional fasteners, reducing material costs and construction difficulty, and is compatible with different specifications of roller shutter tracks, making it more versatile. Simultaneously, the contact slope design of the bolt allows the locking pin to automatically contact and retract the bolt when the roller shutter is closed, achieving convenient locking, while the limiting surface reliably restricts bolt slippage, ensuring locking stability. The push spring always keeps the bolt extended, working in conjunction with the drive mechanism to unlock. The overall structure is simple and compact, suitable for embedded installation requirements, and effectively avoids the defects of exposed lock bodies that are easily deformed by impacts in side-mounted locks.
[0006] As a further feature of this utility model, the driving mechanism includes a driving motor and a swinging component. The swinging component is connected to the output end of the driving motor and is provided with a swinging arm. A driving groove is provided on the side wall of the latch, and the swinging arm abuts against the side wall of the driving groove to drive the driving motor to retract the latch into the lock housing.
[0007] The advantages of this design are as follows: This design, through the cooperation of the drive motor, swing component, swing arm, and lock tongue drive groove, constructs a simple and efficient unlocking transmission mechanism. When the motor drives the swing component to rotate, the swing arm directly contacts the side wall of the drive groove, causing the lock tongue to retract. The transmission path is short and the response is rapid. Compared to traditional complex transmission structures, the unlocking action is smoother and there is no risk of jamming. This transmission structure is compact and small, perfectly adapting to the space constraints of embedded lock bodies, and will not affect the overall embedded installation effect of the lock due to excessive space occupied by transmission components. At the same time, the motor-driven method is less labor-intensive than manual unlocking and facilitates mechanized control, solving the problem of inconvenience in unlocking traditional manual locks. The motor drive can easily interface with intelligent control systems, such as remote control, APP control, and access control linkage, to achieve automated and intelligent upgrades of locks, improving ease of use and security levels. The contact transmission method between the swing arm and the drive groove is a surface contact, which disperses the force and avoids local wear caused by point contact, extending the service life of transmission components. The transmission structure is simple, with fewer failure points, and convenient maintenance, reducing maintenance costs. By adjusting the motor speed and the stroke of the swing component, it can adapt to different lock tongue extension and retraction speed requirements, meeting diverse usage scenarios.
[0008] As a further feature of this invention, the swing arms are configured as three.
[0009] The advantages of this design are as follows: By using three swing arms, a three-point contact transmission is formed between the swing arms and the bolt drive groove. Compared to a single or two swing arms, the force is more evenly distributed, effectively preventing the bolt from tilting or jamming due to concentrated force during unlocking. This ensures the bolt always slides smoothly along the preset trajectory, improving the stability and reliability of the unlocking action. The three-point transmission structure can distribute the torque borne by a single swing arm, reducing the wear of individual components and extending the service life of the swing arms and bolt. At the same time, the multi-point transmission design improves transmission redundancy. Even if one swing arm experiences slight wear or failure, the other two swing arms can still maintain basic transmission function, reducing the probability of sudden lock failure.
[0010] As a further feature of this invention, a micro switch is provided in the lock housing, and an actuating arm is provided on one side of the micro switch in the lock housing. The actuating arm abuts against the button of the micro switch. One end of the actuating arm is rotatably connected to the lock housing, and the other end extends out of the lock housing. The locking pin is provided between the lock tongue and the actuating rod.
[0011] The beneficial effects of this design are as follows: By adding a microswitch and an actuating arm, a lock status detection and feedback mechanism is constructed. When the lock pin moves between the bolt and the actuating arm, it drives the actuating arm to rotate around the rotating connection point, thereby triggering the microswitch. This allows for real-time detection of whether the lock is properly locked and whether unlocking is successful, effectively avoiding security risks caused by incomplete locking and solving the problem of traditional locks not being able to intuitively determine the locking status. The actuating arm's structure, with one end rotating and the other extending outside the lock housing, is flexible and responsive, accurately capturing even the slightest displacement of the lock pin to ensure accurate status detection. Simultaneously, this compact structure does not occupy excessive internal space in the lock housing, adapting to the space requirements of embedded designs without affecting the normal cooperation between the bolt and the lock pin. The detection signal of the micro switch can be linked with the alarm system and smart terminal. When the lock is abnormally pried or not locked in place, it can issue an alarm reminder in time to improve the security level. The cooperation between the trigger arm and the locking pin forms a double limit, which further restricts the sliding range of the locking pin, improves the locking stability, and prevents the locking pin from accidentally falling off.
[0012] As a further feature of this invention, a guide protrusion and a guide groove are provided between the lock shell and the lock tongue, and the guide protrusion and the guide groove slide together.
[0013] The beneficial effects of this design are as follows: This design, through the sliding cooperation of the guide protrusion and guide groove, provides precise guidance for the extension and retraction of the bolt, effectively limiting the bolt's movement trajectory and preventing lateral or vertical deviation during extension and retraction. This fundamentally solves the locking failure and jamming problems caused by bolt deviation in existing technologies, ensuring that the engagement between the bolt and the locking pin is always precise and reliable. The sliding cooperation structure is simple and easy to manufacture, and can be achieved through conventional processes such as stamping and injection molding, without significantly increasing production costs. Simultaneously, the guide structure reduces the friction area between the bolt and the lock housing, lowering movement resistance, making bolt extension and retraction smoother, reducing component wear, and extending service life. Attached Figure Description
[0014] Figure 1 This is a cross-sectional structural diagram of the installation state of this utility model in the track and roller shutter door;
[0015] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0016] Figure 3 This is a schematic diagram of the internal structure of an embodiment of the present utility model. Detailed Implementation
[0017] This utility model provides an embodiment of an embedded roller shutter door lock, such as... Figures 1 to 3As shown, the device includes a lock housing 1, a positioning component 2, and a locking pin 4 mounted on the roller shutter door. The positioning component 2 includes a fitting part 23, an abutting part 22, and a connecting part 21 for positioning with the roller shutter door track, connected in sequence. The fitting part 23 abuts against one side wall of the lock housing 1, and the abutting part 22 abuts against the other side wall of the lock housing 1. The fitting part 23 is perpendicular to the abutting part 22, and the connecting part 21 is perpendicular to the abutting part 22. The connecting part 21 has a connecting hole for fixed connection with the track. The lock housing 1 is provided with a latch 3. The latch 3 has an abutting inclined surface for retracting into the lock housing 1 by the locking pin 4 and a limiting surface for restricting the sliding of the locking pin 4 by abutting against the side wall of the locking pin 4. A push spring 31 for keeping the latch 3 outside the lock housing 1 abuts between the latch 3 and the lock housing 1. The lock housing 1 is also provided with a drive mechanism for driving the latch 3 to retract into the lock housing 1. The advantages of this design are as follows: This design achieves integrated positioning and fixation of the lock housing 1 and the roller shutter track through the positioning component 2, eliminating the need for ground trenching and pre-embedding as required by hook locks, and avoiding the cumbersome multi-point fixing operations of side-mounted locks, significantly improving assembly efficiency. The fitting part 23 and the contact part 22 form a bidirectional contact limit on the lock housing 1, ensuring accurate positioning and no loosening after installation, fundamentally solving the problem of bolt 3 offset that easily occurs with long-term use of traditional locks. Furthermore, stable installation can be achieved without additional fasteners, reducing material costs and construction difficulty, and it is compatible with roller shutter tracks of different specifications, making it more versatile. Simultaneously, the contact slope design of the bolt 3 allows the locking pin 4 to automatically contact and retract the bolt 3 when the roller shutter is closed, achieving convenient locking, while the limiting surface reliably restricts the slippage of the locking pin 4, ensuring locking stability. The push spring 31 always keeps the bolt 3 in the extended state, working with the drive mechanism to unlock. The overall structure is simple and compact, suitable for embedded installation requirements, and effectively avoids the defects of exposed lock bodies of side-mounted locks that are easily deformed by impact.
[0018] As a further feature of this embodiment, the driving mechanism includes a drive motor 5 and a swing member 51. The swing member 51 is connected to the output end of the drive motor 5, and a swing arm 52 is provided on the swing member 51. A drive groove 32 is provided on the side wall of the latch 3, and the swing arm 52 abuts against the side wall of the drive groove 32 to drive the latch 3 to retract into the lock housing 1. The beneficial effect of this configuration is that, through the cooperation of the drive motor 5, the swing member 51, the swing arm 52 and the drive groove 32 of the latch 3, a simple and efficient unlocking transmission mechanism is constructed. When the motor drives the swing member 51 to rotate, the swing arm 52 directly abuts against the side wall of the drive groove 32 to drive the latch 3 to retract. The transmission path is short and the response is rapid. Compared with the traditional complex transmission structure, the unlocking action is smoother and there is no risk of jamming. This compact transmission structure perfectly fits the space constraints of embedded lock bodies, preventing excessive space occupation by transmission components from affecting the overall embedded installation effect of the lock. Furthermore, the motor-driven method is less labor-intensive than manual unlocking and facilitates mechanized control, solving the inconvenience of unlocking traditional manual locks. The motor drive can easily interface with intelligent control systems, such as remote control, APP control, and access control linkage, enabling automated and intelligent upgrades to the lock, improving ease of use and security. The contact transmission between the swing arm 52 and the drive groove 32 is a surface contact, distributing force and avoiding localized wear caused by point contact, thus extending the service life of the transmission components. The simple transmission structure has fewer potential failure points, facilitating maintenance and reducing maintenance costs. By adjusting the motor speed and the stroke of the swing component 51, it can adapt to different bolt extension / retraction speed requirements, meeting diverse usage scenarios.
[0019] As a further provision of this embodiment, three swing arms 52 are provided. The advantages of this configuration are: With three swing arms 52, a three-point contact transmission is formed between the swing member 51 and the driving groove 32 of the latch 3. Compared to a single or two swing arms 52, the force is more evenly distributed, effectively preventing the latch 3 from tilting or jamming due to concentrated force during unlocking. This ensures that the latch 3 always slides smoothly along the preset trajectory, improving the stability and reliability of the unlocking action. The three-point transmission structure can distribute the torque borne by a single swing arm 52, reducing the wear of individual components and extending the service life of the swing member 51 and the latch 3. Simultaneously, the multi-point transmission design improves transmission redundancy; even if one swing arm 52 experiences slight wear or failure, the other two swing arms 52 can still maintain basic transmission functions, reducing the probability of sudden lock failure.
[0020] As a further feature of this embodiment, a micro switch 6 is provided in the lock housing 1, and an actuating arm 7 is provided on one side of the micro switch 6. The actuating arm 7 abuts against the button of the micro switch 6. One end of the actuating arm 7 is rotatably connected to the lock housing 1, and the other end extends out of the lock housing 1. The locking pin 4 is located between the bolt 3 and the actuating rod. The beneficial effect of this configuration is that, by adding the micro switch 6 and the actuating arm 7, a lock status detection and feedback mechanism is constructed. When the locking pin 4 moves between the bolt 3 and the actuating arm 7, it will drive the actuating arm 7 to rotate around the rotational connection point, thereby triggering the micro switch 6. This allows for real-time detection of whether the lock is properly locked and whether the unlocking is successful, effectively avoiding security risks caused by incomplete locking and solving the problem that traditional locks cannot intuitively determine the locking status. The actuating arm 7 features a design with one end rotating and the other extending outside the lock housing 1. This design allows for flexible movement and sensitive response, accurately capturing even minute displacements of the locking pin 4 to ensure accurate status detection. Simultaneously, the compact structure does not occupy excessive internal space within the lock housing 1, adapting to the space requirements of embedded designs, and does not affect the normal engagement of the bolt 3 and the locking pin 4. The detection signal from the micro switch 6 can be linked with alarm systems and smart terminals. When the lock is abnormally pried or not properly locked, an alarm can be issued promptly, enhancing security. The interaction between the actuating arm 7 and the locking pin 4 forms a double limit, further restricting the sliding range of the locking pin 4, improving locking stability, and preventing accidental dislodgement of the locking pin 4.
[0021] As a further feature of this embodiment, a guide protrusion and a guide groove 33 are provided between the lock housing 1 and the lock tongue 3, with the guide protrusion and guide groove 33 slidingly engaged. The beneficial effects of this design are: this design, through the sliding engagement of the guide protrusion and guide groove 33, provides precise guidance for the extension and retraction of the lock tongue 3, effectively limiting the movement trajectory of the lock tongue 3 and preventing lateral or vertical deviation during extension and retraction. This fundamentally solves the problems of locking failure and jamming caused by lock tongue 3 deviation in the prior art, ensuring that the engagement between the lock tongue 3 and the locking pin 4 is always precise and reliable. The sliding engagement structure is simple and easy to manufacture, and can be achieved through conventional processes such as stamping and injection molding without significantly increasing production costs. Simultaneously, the guide structure reduces the friction area between the lock tongue 3 and the lock housing 1, lowers movement resistance, makes the extension and retraction of the lock tongue 3 smoother, reduces component wear, and extends service life.
[0022] The above examples are merely one preferred embodiment of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution are all included within the protection scope of this utility model.
Claims
1. An embedded roller shutter door lock, comprising a lock housing, a positioning element, and a locking pin disposed on the roller shutter door, characterized in that: The positioning component includes a fitting part, an abutting part, and a connecting part for positioning with the roller shutter door track, connected in sequence. The fitting part abuts against one side wall of the lock housing, and the abutting part abuts against the other side wall of the lock housing. The fitting part is arranged perpendicular to the abutting part, and the connecting part is arranged perpendicular to the abutting part. A connecting hole for fixed connection with the track is provided on the connecting part. The lock housing is provided with a latch, which has an abutting inclined surface for retracting into the lock housing by the locking pin and a limiting surface for restricting the sliding of the locking pin by abutting against the side wall of the locking pin. A push spring for keeping the latch outside the lock housing abuts between the latch and the lock housing. The lock housing is also provided with a drive mechanism for driving the latch to retract into the lock housing.
2. The embedded roller shutter door lock according to claim 1, characterized in that: The driving mechanism includes a drive motor and a swinging component. The swinging component is connected to the output end of the drive motor and has a swinging arm. A drive groove is provided on the side wall of the latch. The swinging arm abuts against the side wall of the drive groove to drive the latch to retract into the lock housing.
3. The embedded roller shutter door lock according to claim 2, characterized in that: The swing arms are configured in three parts.
4. The embedded roller shutter door lock according to claim 1, characterized in that: The lock housing is equipped with a micro switch, and an actuating arm is provided on one side of the micro switch. The actuating arm abuts against the button of the micro switch. One end of the actuating arm is rotatably connected to the lock housing, and the other end extends out of the lock housing. The locking pin is provided between the lock tongue and the actuating rod.
5. The embedded roller shutter door lock according to claim 1, characterized in that: A guide protrusion and a guide groove are provided between the lock housing and the lock tongue, and the guide protrusion and the guide groove slide together.