Intelligent door lock with telescopic handle
The design of the handle assembly solves the problem of traditional telescopic handles being unable to rotate, thus improving the convenience, security, and aesthetics of smart door locks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional telescopic handle smart door locks cannot be rotated for control, resulting in inconvenience and poor aesthetics.
The handle assembly includes a handle body, a rotating sleeve, a connecting sleeve, and a drive rod. The drive rod drives the handle body to extend and retract, and the locking groove and limiting plate ensure stability. The relative movement of the rotating sleeve and the connecting sleeve controls the rotation of the handle.
It improves the convenience and security of door locks, prevents handles from being damaged when not in use, keeps smart door locks clean and beautiful, and enhances operability and stability.
Smart Images

Figure CN224120070U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of smart door locks, and in particular to a smart door lock with a telescopic handle. Background Technology
[0002] Door locks are a crucial component of security and are widely used in modern homes and commercial facilities. With advancements in smart home technology, smart door locks have gained increasing attention due to their convenience and security. However, traditional door lock handle designs still have some shortcomings, particularly in terms of space utilization and aesthetics, which require improvement. To enhance user experience, the most common door lock handle designs on the market are fixed handles and rotating handles. Fixed handle door locks are typically mounted directly on an exposed handle; while rotating handles unlock the door through a rotating motion.
[0003] Utility model patent publication number CN213297496U discloses a smart door lock with a telescopic handle, including a lock body, a maintenance cover, a handle receiving groove, a scissor-type bracket, and a mounting connecting block. An LED display screen is located on the rear outer side of the lock body, and a smart button is located below the LED display screen. Sliding tracks are provided on both the left and right outer walls of the lock body, and internal pulleys of the sliding tracks are connected to a lock body protective cover. The maintenance cover is located on the front outer side of the lock body, and a first rotating rod is located above the maintenance cover. This smart door lock with a telescopic handle incorporates an automatic telescopic handle mechanism. This mechanism can be activated via a smart button, and an electric push rod, in conjunction with the telescopic rod, pushes the scissor-type bracket to move within a slotted hole, causing the handle to extend and retract within the handle receiving groove, thus achieving the purpose of concealing the handle. However, the telescopic handle formed by the scissor-type bracket cannot rotate; it only provides a point of leverage and cannot provide control. Summary of the Invention
[0004] In order to solve the problem that the telescopic handle cannot be rotated to control the smart door lock, the purpose of this application is to provide a telescopic handle smart door lock.
[0005] The smart door lock with a retractable handle provided in this application adopts the following technical solution:
[0006] A smart door lock with a retractable handle includes:
[0007] Door lock assembly with handle groove on the surface;
[0008] The handle assembly includes a handle body, a rotating sleeve, a connecting sleeve, and a drive rod. The handle body is connected to the connecting sleeve. The drive rod is located at the bottom of the handle groove and can extend and retract to the outside of the door lock assembly. The drive rod is rotatably connected to the connecting sleeve. When the drive rod is retracted, the handle body is retracted into the handle groove. The rotating sleeve is connected to the door lock assembly and is used to rotate and drive the smart door lock switch. The rotating sleeve is located on the outside of the connecting sleeve, and the connecting sleeve can move relative to the rotating sleeve under the push of the drive rod.
[0009] By adopting the above technical solution, since the handle is the control structure of the door lock, it becomes unusable after being damaged by external forces. Using a drive rod to move the handle body telescopically allows the handle body to retract into the handle slot when not in use, preventing damage and making the smart door lock neater and more aesthetically pleasing. The drive rod pushes the connecting sleeve relative to the rotating sleeve, thereby pushing the handle body in and out of the handle slot, improving the convenience and security of the door lock.
[0010] Optionally, the rotating sleeve has a snap-fit groove, and the connecting sleeve has a snap-fit block. The snap-fit groove and the snap-fit block engage to drive the rotating sleeve to rotate.
[0011] By adopting the above technical solution, the snap-fit block and snap-fit groove can make the connecting sleeve and the rotating sleeve snap-fit together, so that they can rotate synchronously, and the handle body can drive the rotating sleeve, thereby driving the door lock assembly to open and close.
[0012] Optionally, a limiting plate is provided on the outside of the snap-fit slot to prevent the snap-fit block from falling outward.
[0013] By adopting the above technical solution, the setting of the limiting plate can effectively prevent the locking block from disengaging from the locking groove under the action of external force, thereby ensuring the stability and reliability of the handle assembly during long-term use.
[0014] Optionally, a bearing is provided between the drive rod and the connecting sleeve.
[0015] By adopting the above technical solution, since the connecting sleeve needs to rotate with the handle body, while the drive rod only needs to extend and retract, the two can operate normally in the connected state through the bearing connection.
[0016] Optionally, the handle groove is vertically oriented on the surface of the door lock assembly.
[0017] By adopting the above technical solution, the handle body can be retracted vertically into the handle slot, avoiding the smart lock from occupying too much space and maintaining the aesthetics of the smart lock.
[0018] Optionally, the rotating sleeve is also provided with a sliding groove, which is connected to a snap-fit groove. The snap-fit block can move within the sliding groove. The sliding groove includes a spiral structure so that when the connecting sleeve moves relative to the rotating sleeve, the connecting sleeve rotates relative to the rotating sleeve.
[0019] By adopting the above technical solution, the sliding groove can change the position of the locking block in a spiral shape, thereby rotating the connecting sleeve, and thus changing the orientation of the handle body during the extension and retraction process, so that the handle body can be in different directions when it is retracted and extended.
[0020] Optionally, a telescopic button is provided on the handle body.
[0021] By adopting the above technical solution, the telescopic button is used to control the extension and retraction of the handle assembly when the smart door lock is not in the locked state, thereby increasing the operability of the handle assembly under different conditions.
[0022] Optionally, the door lock assembly also includes a smart button and a camera.
[0023] By adopting the above technical solution, the smart button integrates multiple advanced authentication methods such as fingerprint recognition and password input, allowing users to choose the method most suitable for their needs to unlock the door. The camera captures images of the external environment and transmits them in real-time to the terminal device via a wireless communication network, enabling users to monitor the door lock's status at any time.
[0024] In summary, this application includes at least one of the following beneficial technical effects:
[0025] 1. Since the handle is the control structure of the door lock, it becomes difficult to use after being damaged by external forces. A drive rod is used to move the handle body in and out of the handle slot when not in use, preventing damage and making the smart door lock neater and more aesthetically pleasing. The drive rod pushes the connecting sleeve relative to the rotating sleeve, thereby moving the handle body in and out of the handle slot, improving the convenience and security of the door lock.
[0026] 2. The sliding groove can change the position of the locking block in a spiral shape, thereby rotating the connecting sleeve and causing the handle body to change its orientation during the extension and retraction process, so that the handle body can be in different directions when it is retracted and extended. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;
[0028] Figure 2 This is a cross-sectional structural diagram of an embodiment of this application;
[0029] Figure 3 This is a cross-sectional structural schematic diagram of the rotating sleeve according to an embodiment of this application.
[0030] Reference numerals: 1. Door lock assembly; 11. Handle groove; 12. Smart button; 13. Camera; 2. Handle assembly; 21. Handle body; 211. Telescopic button; 22. Rotating sleeve; 221. Snap-fit groove; 222. Limiting plate; 223. Sliding groove; 23. Connecting sleeve; 231. Snap-fit block; 24. Drive rod; 25. Bearing. Detailed Implementation
[0031] The present application will be further described in detail below with reference to the accompanying drawings.
[0032] A smart door lock with a retractable handle, as shown in the reference Figure 1 The system includes a door lock assembly (1) and a handle assembly (2). The door lock assembly (1) has a handle groove (11) on its surface. The handle assembly (2) is connected to the door lock assembly (1) within the handle groove (11) and can be retracted into or protrude from the handle groove (11). The door lock assembly (1) is also equipped with a smart button (12) and a camera (13). The smart button (12) is distributed on both sides of the handle groove (11), and the camera (13) is located on the top of the door lock assembly (1). The smart button (12) integrates multiple advanced authentication methods such as fingerprint recognition and password input, allowing users to choose the method most suitable for their needs to unlock the door according to their personal preferences. The camera (13) captures images of the external environment and transmits them to the terminal device in real time via a wireless communication network for display, making it convenient to monitor the dynamics of the door lock at any time.
[0033] Reference Figure 2 and 3The handle assembly (2) includes a handle body (21), a rotating sleeve (22), a connecting sleeve (23), and a drive rod. The drive rod and the rotating sleeve (22) are connected to the door lock assembly (1). The drive rod is located at the bottom of the handle groove (11) and can extend and retract to the outside of the door lock assembly (1). The rotating sleeve (22) can drive the smart door lock switch by rotating. The connecting sleeve (23) is located inside the rotating sleeve (22). The inner wall of the rotating sleeve (22) is provided with a sliding groove (223) and a snap-fit groove (221). The sliding groove (223) and the snap-fit groove (221) are connected. The opening of the snap-fit groove (221) has a limiting plate (222), which closes the opening of the snap-fit groove (221). The connecting sleeve (23) is provided with an outwardly protruding snap-fit block (231). The snap-fit block (231) can slide in the sliding groove (223) and slide into the snap-fit groove (221). In both the sliding groove (223) and the snap-fit groove (221), the snap-fit block (231) will snap into the sliding groove (223) or the snap-fit groove (221), so that the connecting sleeve (23) and the rotating sleeve (22) are connected at a relatively fixed angle. The drive rod is located inside the rotating sleeve (22) and the connecting sleeve (23) and is rotatably connected to the connecting sleeve (23). A bearing is provided between the drive rod and the connecting sleeve (23). Since the connecting sleeve (23) needs to rotate relative to the drive rod during extension, retraction and use, the bearing allows the connecting sleeve (23) to be stretched and pushed while rotating normally. The handle body (21) is connected to the connecting sleeve (23). When the handle body (21) is extended, the connecting sleeve (23) can be rotated by the handle body (21), thereby driving the rotating sleeve (22) to rotate and control the opening and closing of the smart door lock. The handle body (21) is provided with a telescopic button (211), which is used to control the extension and retraction of the handle assembly (2) when the smart door lock is not in the locked state, thereby increasing the operability of the handle assembly (2) in different situations.
[0034] Reference Figure 2 and 3When the drive rod extends, it pushes the connecting sleeve (23) out of the rotating sleeve (22). The snap-fit block (231) enters the snap-fit groove (221) through the sliding groove (223) and abuts against the limiting plate (222). The limiting plate (222) is used to prevent the snap-fit block (231) from falling out of the snap-fit groove (221), so that the connecting sleeve (23) can form a stable connection with the rotating sleeve (22). When the drive rod retracts, it pulls the connecting sleeve (23) into the rotating sleeve (22). The snap-fit block (231) enters the sliding groove (223). The part of the sliding groove (223) near the snap-fit groove (221) has a spiral structure. During the sliding process of the snap-fit block (231) in the spiral structure of the sliding groove (223), it drives the connecting sleeve (23) to rotate. Since the handle groove (11) is vertically set, the handle body (21) needs to enter the handle groove (11) in a vertical state. However, the handle is usually placed horizontally when in use. Therefore, through the spiral sliding groove (223), when the connecting sleeve (23) extends or retracts, the snap-fit block (231) drives the connecting sleeve (23) to rotate along the sliding groove (223), so that the handle body (21) can rotate and change direction during the extension and retraction process. The sliding groove (223) is straight at the end away from the snap-fit groove (221), so that the handle body (21) moves in and out of the handle groove (11) in a parallel manner, making the extension and retraction process of the handle body (21) more stable.
[0035] The implementation principle of this application embodiment is as follows: when the smart door lock is in the locked state, the handle body (21) is in the retracted state. After unlocking by using the smart button (12), the handle body (21) is extended by using the telescopic button (211), so that the smart door lock can be controlled by rotating the rotating sleeve (22) by rotating the handle body (21).
[0036] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.
Claims
1. A smart door lock with a telescopic handle, characterized in that, include: Door lock assembly (1) with a handle groove (11) on its surface; The handle assembly (2) includes a handle body (21), a rotating sleeve (22), a connecting sleeve (23), and a drive rod. The handle body (21) is connected to the connecting sleeve (23). The drive rod is located at the bottom of the handle groove (11) and can extend and retract to the outside of the door lock assembly (1). The drive rod is rotatably connected to the connecting sleeve (23). When the drive rod is retracted, the handle body (21) is retracted into the handle groove (11). The rotating sleeve (22) is connected to the door lock assembly (1) and is used to rotate and drive the smart door lock switch. The rotating sleeve (22) is located outside the connecting sleeve (23). The connecting sleeve (23) can move relative to the rotating sleeve (22) under the push of the drive rod.
2. The smart door lock with a telescopic handle according to claim 1, characterized in that, The rotating sleeve (22) is provided with a snap-fit groove (221), and the connecting sleeve (23) has a snap-fit block (231). The snap-fit groove (221) and the snap-fit block (231) are engaged to enable the handle assembly (2) to drive the rotating sleeve (22) to rotate.
3. A telescopic handle smart door lock according to claim 2, characterized in that, A limiting plate (222) is provided on the outside of the snap-fit groove (221) to prevent the snap-fit block (231) from falling outward.
4. A telescopic handle smart door lock according to claim 1, characterized in that, A bearing is provided between the drive rod and the connecting sleeve (23).
5. A telescopic handle smart door lock according to claim 1, characterized in that, The handle groove (11) is vertically oriented on the surface of the door lock assembly (1).
6. A telescopic handle smart door lock according to claim 2, characterized in that, The rotating sleeve (22) is also provided with a sliding groove (223), which is connected to the snap-fit groove (221). The snap-fit block (231) can move in the sliding groove (223). The sliding groove (223) includes a spiral structure so that when the connecting sleeve (23) moves relative to the rotating sleeve (22), the connecting sleeve (23) rotates relative to the rotating sleeve (22).
7. A smart door lock with a telescopic handle according to claim 1, characterized in that, The handle body (21) is provided with a telescopic button (211).
8. A smart door lock with a telescopic handle according to claim 1, characterized in that, The door lock assembly (1) is also equipped with a smart button (12) and a camera (13).
Citation Information
Patent Citations
Intelligent door lock with telescopic handle
CN213297496U