Lock cylinder structure and intelligent lock
By designing an adjustable lock cylinder structure, the problem of adapting smart locks to different door thicknesses has been solved, achieving lock cylinder versatility and improving user experience.
Patent Information
- Application Number
- CN202422858369.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing smart locks face challenges in installation, operation, and even malfunction when adapting to doors of varying thicknesses, impacting user experience and market penetration.
A lock cylinder structure was designed, including a fixed plate, a lock shell, and an adjustment component. The distance between the lock shell and the fixed plate can be adjusted by adjusting the connection position of the adjustment component, so as to adapt to door bodies of different thicknesses.
It improves the versatility and practicality of the lock cylinder structure, enabling it to adapt to doors of various thicknesses, thus enhancing the lock cylinder's compatibility and user experience.
Smart Images

Figure CN223661549U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of smart lock technology, and in particular relates to a lock cylinder structure and a smart lock. Background Technology
[0002] With the continuous advancement of science and technology and the increasing awareness of security, more and more people are choosing electronic locks for their homes, which offer higher security and easier operation. Smart locks, due to their advantages in intelligence, convenience, and anti-theft performance, are gradually becoming the preferred replacement for traditional mechanical locks. However, most existing smart locks rely on the internal structure of the lock cylinder in conjunction with electronic unlocking, using mechanical linkage to achieve the unlocking function.
[0003] However, in practical use, the lack of standardized specifications for door thickness and dimensions leads to significant differences in door thickness requirements across different regions and scenarios. For example, in some areas or buildings, thicker doors may be chosen to enhance security, while other areas may prefer lighter doors. This diversity in door thickness places higher demands on smart lock cylinders and challenges their versatility.
[0004] Existing smart lock cylinders may encounter installation difficulties, operational problems, or even malfunctions when adapted to door thicknesses. This not only reduces the user experience but also hinders the market penetration and applicability of smart locks. Utility Model Content
[0005] The purpose of this application is to provide a door lock structure that addresses the problem of how to improve the versatility of door lock structures.
[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:
[0007] In a first aspect, a lock cylinder structure is provided, comprising: a fixed plate, a lock shell disposed relative to the fixed plate, and an adjustment assembly, the adjustment assembly comprising a first adjustment member and a second adjustment member, the first adjustment member being connected to the lock shell, the second adjustment member being connected to the fixed plate, the free end of the first adjustment member being connected to the free end of the second adjustment member, and the connection position being adjustable along a first direction, the first direction pointing along the fixed plate towards the lock shell.
[0008] In some embodiments, the second adjusting member has an adjusting hole along a first direction, the other end of the first adjusting member is inserted into the adjusting hole, and the position of the first adjusting member within the adjusting hole is adjustable.
[0009] In some embodiments, one end of the first adjusting member is rotatably connected to the lock housing, the first adjusting member has an external thread, the wall of the adjusting hole has an internal thread adapted to the external thread, and the first adjusting member is screwed into the adjusting hole.
[0010] In some embodiments, the first adjusting member includes a first adjusting rod with external threads and an adjusting head disposed on the first adjusting rod; the lock housing has a first connecting hole along a first direction, one end of the first adjusting member is inserted into the first connecting hole and rotatably connected to the lock housing, the lock housing has a limiting groove communicating with the first connecting hole along a second direction, the adjusting head is located in the limiting groove, the threaded end of the first adjusting rod is screwed into the adjusting hole, and the first direction is perpendicular to the second direction.
[0011] In some embodiments, the lock cylinder structure further includes a retaining ring located in the limiting groove, the retaining ring being sleeved on the peripheral side of the first adjusting rod to prevent the adjusting head from disengaging from the limiting groove.
[0012] In some embodiments, the first connecting hole extends through both ends of the lock housing, and the adjusting head has an adjusting groove.
[0013] In some embodiments, the second adjusting member includes a second adjusting rod and a limiting ring connected to one end of the second adjusting rod. The other end of the second adjusting rod is connected to the first adjusting member. The fixing plate has a positioning through hole and a countersunk groove is formed at the opening of the positioning through hole. The second adjusting rod is inserted into the positioning through hole and the limiting ring is located in the countersunk groove.
[0014] In some embodiments, the lock housing is further provided with a second connecting hole along a first direction, the first connecting hole and the second connecting hole are arranged at intervals, and the lock cylinder structure further includes a limiting post connecting the fixing plate, the free end of the limiting post being slidably inserted into the second connecting hole.
[0015] In some embodiments, the limiting post has a hollow structure, and the lock cylinder structure further includes a free-spinning cylinder disposed within the limiting post and a rotating rod connected to the free-spinning cylinder.
[0016] Secondly, a smart lock is provided, which includes the lock cylinder structure.
[0017] The beneficial effects of this application are as follows: the lock cylinder structure installs the first adjusting member and the second adjusting member onto the lock shell and the fixed plate respectively, and the connection position of the free end of the first adjusting member and the free end of the second adjusting member is adjustable along the first direction. By adjusting the connection position of the first adjusting member and the second adjusting member, the distance from the lock shell to the fixed plate can be adjusted, so that the lock cylinder structure can be adapted to a variety of doors with different thicknesses, reducing the restrictions on the selection of lock cylinders due to different door thicknesses, and improving versatility and practicality. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional structural diagram of the smart lock provided in an embodiment of this application;
[0020] Figure 2 yes Figure 1 A front view diagram of the smart lock along the second direction;
[0021] Figure 3 yes Figure 1 A cross-sectional schematic diagram of a smart lock;
[0022] Figure 4 yes Figure 1 An explosion diagram of a smart lock.
[0023] The following are the labeling elements in the figure:
[0024] 100. Smart lock; 11. Lock housing; 12. Fixing plate; 13. Adjustment assembly; 131. First adjusting component; 132. Second adjusting component; 200. Wrench; 113. Limiting groove; 14. Cam; 15. Limiting bead; 151. Freewheeling cylinder; 152. Rotating rod; 111. First connecting hole; 112. Second connecting hole; 1311. First adjusting rod; 1312. Adjusting head; 133. Adjusting hole; 1321. Limiting ring; 1322. Second adjusting rod; 1313. Limiting ring groove; 121. Countersunk groove; 122. Positioning through hole; 16. Snap ring; Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0026] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are for ease of description only, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.
[0027] Please see Figures 1 to 3 This application provides a lock cylinder structure and a smart lock 100 having the same. The lock cylinder structure can be installed on a building door. The door has mounting holes for installing the lock cylinder structure.
[0028] Please see Figures 2 to 4 The lock cylinder structure includes: a fixing plate 12, a lock shell 11 disposed opposite to the fixing plate 12, and an adjustment assembly 13. The fixing plate 12 is located on one side of the door panel and can be used to install a door handle. One end of the lock shell 11 passes through a mounting hole and is connected to the fixing plate 12 through the adjustment assembly 13. The other end of the lock shell 11 can extend from the other side of the door panel out of the mounting hole.
[0029] The adjustment assembly 13 includes a first adjustment member 131 and a second adjustment member 132. The first adjustment member 131 is connected to the lock housing 11, and the second adjustment member 132 is connected to the fixing plate 12. The free end of the first adjustment member 131 is connected to the free end of the second adjustment member 132, and the connection position is adjustable along a first direction, which points from the fixing plate 12 to the lock housing 11. It can be understood that during installation, the first direction is horizontal, i.e., it can be represented as the X direction.
[0030] Please see Figures 2 to 4 The lock cylinder structure provided in this application embodiment installs the first adjusting member 131 and the second adjusting member 132 onto the lock shell 11 and the fixing plate 12 respectively. The connection position of the free end of the first adjusting member 131 and the free end of the second adjusting member 132 is adjustable along the first direction. By adjusting the connection position of the first adjusting member 131 and the second adjusting member 132, the distance between the lock shell 11 and the fixing plate 12 can be adjusted, so that the lock cylinder structure can be adapted to a variety of doors with different thicknesses, reducing the limitation of different door thicknesses on the selection of lock cylinders and improving versatility and practicality.
[0031] Optionally, the smart lock 100 features a more adaptable lock cylinder structure, which can improve the compatibility of the lock cylinder structure under different door conditions, meet diverse market demands, and provide users with a safer and more reliable smart access control solution.
[0032] Please see Figures 2 to 4 In some embodiments, the second adjusting member 132 has an adjusting hole 133 along the first direction, the other end of the first adjusting member 131 is inserted into the adjusting hole 133, and the position of the first adjusting member 131 in the adjusting hole 133 is adjustable.
[0033] Optionally, the first adjusting member 131 is inserted and cooperates with the adjusting hole 133. The first adjusting member 131 slides a certain distance along the first direction, so that the user can easily adjust the relative distance between the lock shell 11 and the fixing plate 12 according to actual needs, thereby quickly adapting to the thickness of the door.
[0034] Optionally, the structure of the adjustment hole 133 can secure the lock case 11 and prevent performance problems caused by loose installation.
[0035] Please see Figures 2 to 4 In some embodiments, one end of the first adjusting member 131 is rotatably connected to the lock housing 11. The first adjusting member 131 has an external thread, and the wall of the adjusting hole 133 has an internal thread that matches the external thread. The first adjusting member 131 is screwed into the adjusting hole 133.
[0036] Optionally, the threaded fit provides the ability to fine-tune. By rotating the first adjusting member 131, the length of the first adjusting member 131 located in the adjusting hole 133 can be adjusted, thereby adjusting the distance between the lock housing 11 and the fixed plate 12, ensuring that the position of the lock cylinder structure can be precisely adjusted to adapt to doors of different thicknesses.
[0037] Alternatively, threaded connections offer higher mechanical stability, avoiding the risk of the lock cylinder structure loosening due to vibration during long-term use.
[0038] Threaded connections also have the following characteristics:
[0039] Strong shock resistance: The threaded connection, through pre-tightening and locking design, can effectively absorb and resist vibration, thereby keeping the relative distance between the lock housing 11 and the fixing plate 12 stable.
[0040] Self-locking performance: The well-designed threads have good self-locking performance, preventing loosening without the need for additional locking devices, and ensuring that the lock housing 11 and the fixing plate 12 always maintain the required relative distance.
[0041] The threaded connection facilitates installation and disassembly, and is suitable for repeated adjustment of the relative distance between the lock housing 11 and the fixing plate 12 according to different situations. Please refer to... Figures 2 to 4 In some embodiments, the first adjusting member 131 includes a first adjusting rod 1311 with external threads and an adjusting head 1312 disposed on the first adjusting rod 1311; the lock housing 11 has a first connecting hole 111 along a first direction, one end of the first adjusting member 131 is inserted into the first connecting hole 111 and rotatably connected to the lock housing 11, the lock housing 11 has a limiting groove 113 communicating with the first connecting hole 111 along a second direction, the adjusting head 1312 is located in the limiting groove 113, and the threaded end of the first adjusting rod 1311 is screwed into the adjusting hole 133, the first direction being perpendicular to the second direction.
[0042] Please see Figures 2 to 4 It is understandable that the second direction is along the horizontal direction, which can be represented as the Y direction.
[0043] Optionally, the first adjusting rod 1311 can rotate relative to the fixed plate 12 and the lock housing 11 within the adjusting hole 133, so as to quickly adjust the distance between the lock housing 11 and the fixed plate 12 to accommodate doors of different thicknesses.
[0044] During the rotation of the first adjusting rod 1311, the adjusting head 1312 is always rotatably connected to the lock housing 11, and the adjusting head 1312 rotates in the limiting groove 113 and abuts against the groove wall of the limiting groove 113, so as to drive the lock housing 11 to move together in the first direction.
[0045] Please see Figures 2 to 4 In some embodiments, the lock cylinder structure further includes a retaining ring 16 located in the limiting groove 113, the retaining ring 16 being sleeved on the peripheral side of the first adjusting rod 1311 to prevent the adjusting head 1312 from disengaging from the limiting groove 113.
[0046] Optionally, the outer diameter of the retaining ring 16 is larger than the maximum inner diameter of the first connecting hole 111, thereby restricting the adjusting head 1312 from disengaging from the limiting groove 113, and also allowing the adjusting head 1312 to rotate within the limiting groove 113, thus enhancing the safety and durability of the lock cylinder structure.
[0047] Optionally, the second adjusting member 132 is partially inserted into the first connecting hole 111, thereby improving the reliability of the connection between the lock housing 11 and the fixing plate 12.
[0048] Optionally, a limiting ring 1321 groove is provided on the peripheral side of the first adjusting rod 1311, and the retaining ring 16 is engaged in the limiting ring 1321 groove.
[0049] Please see Figures 2 to 4In some embodiments, the first connecting hole 111 extends through both ends of the lock housing 11, and the adjusting head 1312 has an adjusting cavity.
[0050] Optionally, the cross-sectional shape of the adjustment cavity is non-circular, such as polygonal or elliptical. A wrench 200 can be inserted into the adjustment cavity, and the cross-sectional shape of the wrench 200 matches that of the adjustment cavity, allowing the adjustment head 1312 to rotate via the wrench 200. This adjustment cavity facilitates fine-tuning using tools, improving operational efficiency.
[0051] Please see Figures 2 to 4 In some embodiments, the second adjusting member 132 includes a second adjusting rod 1322 and a limiting ring 1321 connected to one end of the second adjusting rod 1322. The other end of the second adjusting rod 1322 is provided with the adjusting hole 133 and connected to the first adjusting member 1311. The fixing plate 12 is provided with a positioning through hole 122 and a countersunk groove 121 is provided at the opening of the positioning through hole 122. The second adjusting rod 1322 is inserted into the positioning through hole 122 and the limiting ring 1321 is located in the countersunk groove 121.
[0052] Optionally, the second adjusting rod 1322 is inserted into the positioning through hole 122 along the first direction, and the limiting ring 1321 is located in the countersunk groove 121. The countersunk groove 121 restricts the limiting ring 1321 from disengaging from the fixing plate 12 along the first direction. The second adjusting rod 1322 is simultaneously threadedly connected to the first adjusting rod 1311, which effectively enhances the fixing effect of the second adjusting member 132 on the lock shell 11.
[0053] Optionally, the countersunk groove 121 provides an additional support area, capable of withstanding greater tensile forces during use.
[0054] Please see Figures 2 to 4 In some embodiments, the lock housing 11 is further provided with a second connecting hole 112 along the first direction, the first connecting hole 111 and the second connecting hole 112 are arranged at intervals, and the lock cylinder structure further includes a limiting post connecting the fixing plate 12, the free end of the limiting post being slidably inserted into the second connecting hole 112.
[0055] Optionally, by increasing the cooperation between the second connecting hole 112 and the limiting post, the stability of the overall lock cylinder structure is improved. The multi-point fixing setting reduces the risk of tilting or misalignment of the lock housing 11 due to assembly errors.
[0056] Please see Figures 2 to 4 In some embodiments, the limiting post has a hollow structure, and the lock cylinder structure further includes a free-spinning cylinder 151 disposed in the limiting post and a rotating rod 152 connected to the free-spinning cylinder 151.
[0057] Optionally, the door handle can be connected to the idler cylinder 151 so that the handle can drive the rotating rod 152 to rotate.
[0058] Please see Figures 2 to 4 This utility model also proposes a smart lock 100, which includes a lock cylinder structure. The specific structure of the lock cylinder structure is as described in the above embodiments. Since this smart lock 100 adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0059] Please see Figures 2 to 4 In some embodiments, the smart lock 100 further includes a cam 14 disposed on the lock housing 11.
[0060] Applying the above-mentioned lock cylinder structure to the smart lock 100 enhances the smart lock 100's adaptability to different door thicknesses and complex scenarios, enabling convenient installation and efficient adjustment, and meeting users' dual needs for security and convenience.
[0061] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A lock cylinder structure, characterized in that, include: The system includes a fixed plate, a lock housing disposed opposite to the fixed plate, and an adjustment assembly. The adjustment assembly includes a first adjustment member and a second adjustment member. The first adjustment member is connected to the lock housing, and the second adjustment member is connected to the fixed plate. The free end of the first adjustment member is connected to the free end of the second adjustment member, and the connection position is adjustable along a first direction, which points from the fixed plate to the lock housing.
2. The lock cylinder structure as described in claim 1, characterized in that: The second adjusting member has an adjusting hole along the first direction, and the other end of the first adjusting member is inserted into the adjusting hole, and the position of the first adjusting member in the adjusting hole is adjustable.
3. The lock cylinder structure as described in claim 2, characterized in that: One end of the first adjusting member is rotatably connected to the lock housing. The first adjusting member has an external thread, and the wall of the adjusting hole has an internal thread that matches the external thread. The first adjusting member is screwed into the adjusting hole.
4. The lock cylinder structure as described in claim 3, characterized in that: The first adjusting member includes a first adjusting rod with external threads and an adjusting head disposed on the first adjusting rod; the lock housing has a first connecting hole along a first direction, one end of the first adjusting member is inserted into the first connecting hole and rotatably connected to the lock housing, the lock housing has a limiting groove communicating with the first connecting hole along a second direction, the adjusting head is located in the limiting groove, and the threaded end of the first adjusting rod is screwed into the adjusting hole, the first direction being perpendicular to the second direction.
5. The lock cylinder structure as described in claim 4, characterized in that: The lock cylinder structure also includes a retaining ring located in the limiting groove. The retaining ring is sleeved on the peripheral side of the first adjusting rod to prevent the adjusting head from disengaging from the limiting groove.
6. The lock cylinder structure as described in claim 4, characterized in that: The first connecting hole extends through both ends of the lock housing, and the adjusting head has an adjusting groove.
7. The lock cylinder structure as described in any one of claims 1-5, characterized in that: The second adjusting member includes a second adjusting rod and a limiting ring connected to one end of the second adjusting rod. The other end of the second adjusting rod is connected to the first adjusting member. The fixing plate has a positioning through hole and a countersunk groove at the opening of the positioning through hole. The second adjusting rod is inserted into the positioning through hole and the limiting ring is located in the countersunk groove.
8. The lock cylinder structure as described in any one of claims 4-5, characterized in that: The lock shell is further provided with a second connecting hole along the first direction. The first connecting hole and the second connecting hole are arranged at intervals. The lock cylinder structure also includes a limiting post that connects to the fixing plate. The free end of the limiting post is slidably inserted into the second connecting hole.
9. The lock cylinder structure as described in claim 8, characterized in that: The limiting post has a hollow structure, and the lock cylinder structure also includes a free-spinning cylinder disposed inside the limiting post and a rotating rod connected to the free-spinning cylinder.
10. A smart lock, characterized in that, Includes the lock cylinder structure as described in any one of claims 1-9.