A door lock

Abstract

The utility model discloses a door lock for locking or releasing door, including movable lock bolt, lock bolt fixer, lock bolt holder, adjustable sleeve and drive assembly. The movable lock bolt is configured to move between a locked position and an unlocked position, when the door lock is installed on the door, the adjustable sleeve can adjust the length to adapt the thickness t of the door, the drive assembly is used to drive the movable lock bolt to move between the locked position and the unlocked position. Through the setting of the above structure, when using, the door lock structure of the utility model realizes the balance of safe locking and flexible adaptation through the synergistic operation of the five core components of movable lock bolt, lock bolt fixer, lock bolt holder, adjustable sleeve and drive assembly. And the adjustable sleeve is the core innovation point, through the length dynamic adjustment, the door thickness of any specification door body on the market is accurately adapted, the limitation of traditional fixed sleeve is broken, and the standardized solution is provided for the lock industry.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a door lock that can be adapted to different door thicknesses and its adjustable sleeve. Background Technology

[0002] Traditional door locks suffer from significant technical limitations in their sleeve design. The sleeve length is fixed during manufacturing, requiring the sleeve to be custom-made to precisely match the door thickness (t) during installation. This design introduces a series of problems: From a cost control perspective, to meet the diverse market demand for varying door thicknesses, companies need to stock multiple sleeve specifications, significantly increasing inventory costs and consuming substantial storage space and working capital. From an installation perspective, when encountering a door thickness incompatible with the existing sleeve, repair personnel must disassemble the entire lock body to replace the sleeve—a cumbersome process that consumes considerable time and effort and can easily cause unnecessary damage to the lock. Furthermore, due to the limited number of standard specifications, traditional door locks struggle to adapt to non-standard door thicknesses, severely restricting their application scenarios.

[0003] Currently, there is no mature solution in the market that can effectively achieve rapid adjustment of sleeve length. There is an urgent need for innovative breakthroughs in structural design or technical principles to improve the practicality and economy of traditional door locks.

[0004] Therefore, this utility model provides a door lock and sleeve assembly, which can effectively solve the above problems. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model provides a door lock and sleeve assembly with a simple structure. The adjustable sleeve can be adapted to any door thickness, simplifying the installation process, reducing production costs, and further improving the user experience.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A door lock for locking or unlocking a door, comprising:

[0008] A movable bolt, which is configured to move between a locked position and an unlocked position;

[0009] A bolt fixing device, wherein the movable bolt is movably connected to the bolt fixing device, and when the movable bolt is in the locked position, the movable bolt extends out of the bolt fixing device, and when the movable bolt is in the unlocked position, the movable bolt retracts from the bolt fixing device;

[0010] A bolt retainer, wherein when the movable bolt is in the locked position, the movable bolt extends from the bolt retainer and into the bolt retainer; and when the movable bolt is in the unlocked position, the movable bolt retracts from the bolt retainer and disengages from the bolt retainer.

[0011] An adjustable sleeve, when the door lock is installed on the door, has an adjustable length to fit the thickness t of the door;

[0012] A drive assembly is provided for driving the movable bolt to move between a locked position and an unlocked position. The drive assembly includes a drive cylinder and an engagement member. The drive cylinder can selectively drive the engagement member to rotate. The movable bolt also includes an engagement recess that engages with the engagement member and is capable of converting the rotational motion of the engagement member into the linear motion of the movable bolt.

[0013] As an improvement of this utility model, the adjustable sleeve includes a base tube, an adjusting tube, and an adjusting element. The base tube is fixedly connected to the locking bolt, and the adjusting tube is movably connected to the base tube. The adjusting element is used to selectively fix the adjusting tube to the base tube along the moving path of the adjusting tube. The axial direction of the adjustable sleeve is defined as axial direction A, and the radial direction is defined as radial direction R. The base tube and the adjusting tube are connected by threads in axial direction A. The adjusting element is connected to the base tube by threads in radial direction R, and the adjusting tube is fixed by radial clamping force.

[0014] As an improvement of this utility model, the axial direction of the adjustable sleeve is defined as axial direction A, and the radial direction is defined as radial direction R; the base tube and the adjusting tube are slidably connected in axial direction A; the adjusting tube is provided with a plurality of snap-fit ​​holes along axial direction A; the adjusting element is connected to the base tube in radial direction R by a thread, and is configured to selectively extend into one of the snap-fit ​​holes to fix the adjusting tube.

[0015] As an improvement of this utility model, the adjustable sleeve includes a base tube and an adjusting tube; the base tube is fixedly connected to the locking bolt fixing device; the adjusting tube is fixedly connected to the base tube; the adjusting tube is made of an easily cut material so that its length can be shortened by cutting away part of the adjusting tube.

[0016] As an improvement of this utility model, the adjustable sleeve includes a base tube and an adjusting tube. The base tube is fixedly connected to the locking bolt retainer, and the adjusting tube is fixedly connected to the base tube. The adjusting tube is composed of multiple adjusting units, which are detachably connected to each other. The adjustable sleeve includes a base tube and an adjusting tube; the base tube is fixedly connected to the locking bolt retainer; the adjusting tube is composed of multiple axially detachably connected adjusting units, and the length is adjusted by increasing or decreasing the number of adjusting units; adjacent adjusting units are connected by threads or snap-fit ​​connections.

[0017] As an improvement to this utility model, it also includes a deadbolt element, wherein the movable bolt is provided with a deadbolt groove; the deadbolt element is configured to selectively extend into the deadbolt groove; when the deadbolt element extends into the deadbolt groove, it prevents the movable bolt from moving, thereby achieving a deadbolt state; the deadbolt groove includes a first deadbolt groove and a second deadbolt groove spaced apart along the moving direction of the movable bolt; the locking position includes a first locking position and a second locking position, and the unlocking position includes a first unlocking position and a second unlocking position; the first locking position corresponds to the first extended state of the movable bolt when the bolt retainer is installed on a left-opening door, and the second locking position corresponds to the second extended state of the movable bolt when the bolt retainer is installed on a right-opening door; the first unlocking position corresponds to the first retracted state of the movable bolt, and the second unlocking position corresponds to the second retracted state of the movable bolt; the first locking position corresponds to the first unlocking position, and the second locking position corresponds to the second unlocking position.

[0018] As an improvement to this utility model, a grip handle is also included, which is connected to the door and is used to provide a fulcrum for operating the door.

[0019] An adjustable sleeve for use with a door lock, characterized in that the adjustable sleeve has an adjustable length to accommodate the thickness t of the door.

[0020] As an improvement of this utility model, the adjustable sleeve includes a base tube, an adjusting tube, and an adjusting element. The base tube is fixedly connected to the locking bolt, the adjusting tube is movably connected to the base tube, and the adjusting element is used to selectively fix the adjusting tube to the base tube along the moving path of the adjusting tube.

[0021] As an improvement to this utility model, it includes a base tube and an adjusting tube; the base tube is configured as a bolt fixation device fixedly connected to the door lock; the adjusting tube is fixedly connected to the base tube; the adjusting tube is made of an easily cut material to allow its length to be shortened by cutting away part of the adjusting tube.

[0022] The beneficial effects of this utility model are as follows: Through the above-described structure, in use, the door lock structure of this utility model achieves a balance between secure locking and flexible adaptation through the coordinated operation of five core components: the movable bolt, the bolt retainer, the bolt holder, the adjustable sleeve, and the drive assembly. Specifically, the movable bolt, as the core locking unit, controls the physical locking state of the door; the bolt retainer and bolt holder ensure stable and reliable movement and form a rigid locking closed loop; and the bolt drive assembly provides the power source for human-machine interaction. The adjustable bolt sleeve, as a core innovation, precisely adapts to the door thickness of any door size on the market through dynamic length adjustment, breaking through the limitations of traditional fixed sleeves. This structural design brings significant benefits: in terms of versatility, a single product can cover all door types and specifications, reducing the number of accessories by more than 70%; in terms of installation efficiency, on-site adjustments can be made without replacing parts, shortening installation time by 50%-70%; at the same time, the universal design effectively reduces manufacturing, warehousing and logistics costs, lowers the skill threshold for installers, and achieves a triple breakthrough in cross-door compatibility, installation convenience and full life cycle cost control, providing a standardized solution for the lock industry. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, the drawings are not drawn to a 1:1 scale, and the relative dimensions of each component are only illustrated in the drawings and are not necessarily drawn to the actual scale.

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of the door lock according to a first embodiment of the present invention from a first angle;

[0026] Figure 2 This is a schematic diagram of the overall structure of the door lock according to Embodiment 1 of this utility model from a second angle;

[0027] Figure 3 This is an exploded view of the first embodiment of the door lock of this utility model from a first angle;

[0028] Figure 4 This is an exploded view of the second angle of Embodiment 1 of the door lock of this utility model;

[0029] Figure 5 This is an exploded structural diagram of the adjustable sleeve 400 described in Embodiment 1 of the door lock of this utility model;

[0030] Figure 6 This is a schematic diagram of the bolt fixing device 200 of the door lock according to Embodiment 1 of this utility model, installed at the first angle when the door is opened to the right;

[0031] Figure 7 This is a schematic diagram of the bolt fixing device 200 of the door lock according to Embodiment 1 of this utility model, installed at the second angle when the door is opened to the right;

[0032] Figure 8 yes Figure 6 An enlarged schematic diagram of circle A with the movable bolt 100 in the second locking position;

[0033] Figure 9 yes Figure 6 An enlarged schematic diagram of circle A with the movable bolt 100 in the second unlocked position;

[0034] Figure 10 This is a schematic diagram of the bolt fixing device 200 of the door lock according to Embodiment 1 of this utility model, installed at the first angle when the door is opened to the left;

[0035] Figure 11 This is a schematic diagram of the bolt fixing device 200 of the door lock according to Embodiment 1 of this utility model, installed at the second angle when the door is opened to the left;

[0036] Figure 12 yes Figure 10 An enlarged schematic diagram of circle B with the movable bolt 100 in the first locking position;

[0037] Figure 13 yes Figure 10 An enlarged schematic diagram of circle B with the movable bolt 100 in the first unlocked position;

[0038] Figure 14 This is a schematic diagram of the overall structure of Embodiment 2 of the door lock of this utility model;

[0039] Figure 15 This is an exploded structural diagram of the adjustable sleeve 400 described in Embodiment 2 of the present invention;

[0040] Figure 16 This is a schematic diagram of the overall structure of Embodiment 3 of the door lock of this utility model;

[0041] Figure 17 This is an exploded structural diagram of the adjustable sleeve 400 described in Embodiment 3 of the present invention;

[0042] Figure 18 This is a schematic diagram of the overall structure of Embodiment 4 of the door lock of this utility model;

[0043] Figure 19 This is a schematic diagram of the adjustable sleeve 400 described in Embodiment 4 of the present invention.

[0044] Reference numerals: 100, movable bolt; 200, bolt retainer; 300, bolt retainer; 400, adjustable sleeve; 500, drive assembly; 600, deadbolt element; 700, grip handle; 110, engagement recess; 120, deadbolt groove; 121, first deadbolt groove; 122, second deadbolt groove; 410, base tube; 420, adjusting tube; 421, snap-fit ​​hole; 422, cutting groove; 423, adjusting unit; 430, adjusting element; 510, drive lock cylinder; 520, engagement component; 10, door. Detailed Implementation

[0045] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0046] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0047] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0051] Reference Figures 1 to 19 A door lock for locking or releasing door 10, comprising:

[0052] A movable bolt 100 is configured to move between a locked position and an unlocked position;

[0053] A bolt retainer 200 is provided, wherein the movable bolt 100 is movably connected to the bolt retainer 200. When the movable bolt 100 is in the locked position, it extends out of the bolt retainer 200, and when the movable bolt 100 is in the unlocked position, it retracts from the bolt retainer 200.

[0054] The bolt retainer 300 is such that when the movable bolt 100 is in the locked position, the movable bolt 100 extends from the bolt retainer 200 and into the bolt retainer 300; when the movable bolt 100 is in the unlocked position, the movable bolt 100 retracts from the bolt retainer 200 and disengages from the bolt retainer 300.

[0055] The adjustable sleeve 400 is adjustable in length to fit the thickness t of the door 10 when the door lock is installed on the door 10.

[0056] A drive assembly 500 is provided for driving the movable bolt 100 to move between a locked position and an unlocked position.

[0057] With the above-described structure, in use, the door lock structure of this utility model achieves a balance between secure locking and flexible adaptation through the coordinated operation of five core components: the movable bolt 100, the bolt retainer 200, the bolt holder 300, the adjustable sleeve 400, and the drive assembly 500. Specifically, the movable bolt 100, as the core locking unit, controls the physical locking state of the door; the bolt retainer 200 and the bolt holder 300 ensure stable and reliable movement and form a rigid locking closed loop; and the drive assembly 500 provides the power source for human-machine interaction. The adjustable sleeve 400, as a core innovation, precisely adapts to the door thickness of any door size on the market through dynamic length adjustment, breaking through the limitations of traditional fixed sleeves. This structural design brings significant benefits: in terms of versatility, a single product can cover all door types and specifications, reducing the number of accessories by more than 70%; in terms of installation efficiency, on-site adjustments can be made without replacing parts, shortening installation time by 50%-70%; at the same time, the universal design effectively reduces manufacturing, warehousing and logistics costs, lowers the skill threshold for installers, and achieves a triple breakthrough in cross-door compatibility, installation convenience and full life cycle cost control, providing a standardized solution for the lock industry.

[0058] In this embodiment, the adjustable sleeve 400 includes a base tube 410, an adjusting tube 420, and an adjusting element 430. The base tube 410 is fixedly connected to the locking bolt fixer 200, the adjusting tube 420 is movably connected to the base tube 410, and the adjusting element 430 is used to selectively fix the adjusting tube 420 to the base tube 410 along the moving path of the adjusting tube 420. With the above structural design, in use, the adjustable sleeve 400 in this embodiment achieves precise adjustment and fixing functions through the structural design of the base tube 410, the adjusting tube 420, and the adjusting element 430. The base tube 410 is fixedly connected to the bolt fastener 200, providing a stable installation foundation for the entire sleeve structure. The adjusting tube 420 can move on the base tube 410, and the axial length can be adjusted by changing the relative position of the two to adapt to the spatial distance requirements under different working conditions. The adjusting element 430 can selectively fix the adjusting tube 420 to the base tube 410 on the moving path to ensure that the adjusted position remains stable and to prevent displacement due to external forces. Thus, while ensuring structural flexibility, it achieves precise positioning and fixing effects.

[0059] In this embodiment, the axial direction of the adjustable sleeve 400 is defined as axial direction A, and the radial direction is defined as radial direction R. The base tube 410 and the adjusting tube 420 are connected by threads in the axial direction A. The adjusting element 430 is connected to the base tube 410 by threads in the radial direction R, and the adjusting tube 420 is fixed by radial clamping force. With the above structural configuration, in use, the structural design of the adjustable sleeve 400 fully utilizes the axial and radial adjustment functions to achieve a flexible and stable adjustment effect. The base tube 410 and the adjusting tube 420 are threaded together in the axial direction A. Their relative positions can be easily adjusted by rotation, thereby precisely changing the overall length of the sleeve to meet different spatial assembly requirements. The adjusting element 430 is threaded together with the base tube 410 in the radial direction R. By rotating the adjusting element 430, a clamping force can be generated in the radial direction, which firmly fixes the adjusting tube 420 to the base tube 410 and prevents it from displacing in the axial direction. This bidirectional threaded connection design ensures both the flexibility of sleeve length adjustment and reliable positioning after adjustment, improving the practicality and stability of the overall structure.

[0060] In this embodiment, the axial direction of the adjustable sleeve 400 is defined as axial direction A, and the radial direction is defined as radial direction R. The base tube 410 and the adjusting tube 420 are slidably connected in the axial direction A. The adjusting tube 420 is provided with a plurality of snap-fit ​​holes 421 along the axial direction A. The adjusting element 430 is threadedly connected to the base tube 410 in the radial direction R and is configured to selectively extend into one of the snap-fit ​​holes 421 to fix the adjusting tube 420. With the above structural design, the adjustable sleeve 400 achieves precise and stable adjustment through a clever structural combination during use. The base tube 410 and the adjusting tube 420 are slidably connected in the axial direction A, allowing the adjusting tube 420 to move flexibly along the axial direction, facilitating quick adjustment of the overall length of the sleeve and adapting to different installation conditions. The adjusting tube 420 has multiple locking holes 421 along the axial direction, which cooperate with the adjusting element 430, which is threadedly connected to the base tube 410 in the radial direction R. When the adjusting element 430 is screwed into the base tube 410, it can selectively extend into different locking holes 421 to achieve positioning and locking of the adjusting tube 420. This structural design ensures both the convenience of the adjustment process and, through locking positioning, prevents axial movement of the adjusting tube 420 during use, thereby enhancing the overall stability and reliability of the adjustable sleeve 400.

[0061] In this embodiment, the adjustable sleeve 400 includes a base tube 410 and an adjusting tube 420. The base tube 410 is fixedly connected to the bolt fixing device 200. The adjusting tube 420 is fixedly connected to the base tube 410. The adjusting tube 420 is made of an easily cut material, allowing its length to be shortened by cutting away a portion of the adjusting tube 420. With this structure, in use, the adjustable sleeve 400 achieves adaptive adjustment of its length through the combination of the base tube 410 and the adjusting tube 420. The base tube 410 is securely connected to the bolt fixing device 200, providing reliable support for the overall structure. The adjusting tube 420 is fixed to the base tube 410, and since it is made of an easily cut material, the user can conveniently and efficiently shorten the sleeve length by cutting away a portion of the adjusting tube 420 according to actual installation needs. Of course, if the adjusting tube 420 is not made of cutting material, multiple cutting grooves 422 can be pre-set along the axial direction on the adjusting tube 420. These cutting grooves 422 serve as precise cutting points. Users can cut and remove part of the adjusting tube 420 according to actual installation needs, thereby conveniently and efficiently shortening the sleeve length. This allows the adjustable sleeve 400 to flexibly adapt to different space size requirements, ensuring structural stability while giving it high flexibility and adaptability to different scenarios.

[0062] In this embodiment, the adjustable sleeve 400 includes a base tube 410 and an adjusting tube 420. The base tube 410 is fixedly connected to the bolt fixing device 200, and the adjusting tube 420 is fixedly connected to the base tube 410. The adjusting tube 420 is composed of multiple adjusting units 423, which are detachably connected to each other. The adjustable sleeve 400 includes a base tube 410 and an adjusting tube 420; the base tube 410 is fixedly connected to the bolt fixing device 200; the adjusting tube 420 is composed of multiple adjusting units 423 detachably connected axially, and the length is adjusted by increasing or decreasing the number of adjusting units 423. Through the above structural design, the adjustable sleeve 400 achieves flexible length adjustment based on a modular design concept during use. The base tube 410 is fixedly connected to the locking bolt fixer 200, forming a stable foundation frame. The adjusting tube 420 is composed of multiple axially detachably connected adjusting units 423. This modular design allows users to quickly adjust the overall length of the adjusting tube 420 by simply increasing or decreasing the number of adjusting units 423 according to actual working conditions. This structure requires no complex tools or operations and can accurately match different installation space requirements, effectively improving the versatility and adaptability of the adjustable sleeve 400. At the same time, the detachable connection between the adjusting units 423 facilitates later maintenance and replacement, enhancing the practicality and durability of the structure.

[0063] In this embodiment, adjacent adjustment units 423 are connected by threaded connections or snap-fit ​​connections. Through the above structural design, the threaded or snap-fit ​​connection between the adjustment units 423 provides dual protection for the length adjustment and structural stability of the adjustable sleeve 400. Threaded connections, with their helical meshing characteristics, achieve a tight and secure connection between the adjustment units 423, exhibiting good stability when transmitting axial force and effectively preventing loosening during use. Fine-tuning can also be achieved through precise rotation. Snap-fit ​​connections, with their convenient insertion and removal operation, allow for quick assembly and disassembly of the adjustment units 423, significantly improving the efficiency of length adjustment. This is suitable for scenarios requiring frequent adjustments, and the snap-fit ​​structure's built-in limiting function ensures precise connection. Both connection methods enable reliable splicing of the adjustment units 423, achieving a balance between the flexibility of length adjustment and structural strength in the adjustable sleeve 400. It should be noted that this embodiment includes... Figure 17 The image shows a threaded connection, and the snap-fit ​​connection is shown in the attached embodiment. Figure 17 Although not specifically shown in the text, it should be considered an equivalent replacement for threaded connections.

[0064] In this embodiment, the drive assembly 500 includes a drive lock cylinder 510 and a connecting member 520. The drive lock cylinder 510 can selectively drive the connecting member 520 to rotate. The movable bolt 100 also includes a connecting recess 110, which engages with the connecting member 520 and can convert the rotational motion of the connecting member 520 into the linear motion of the movable bolt 100. Through this structural arrangement, in use, the drive assembly 500 achieves effective conversion and precise control of motion through the coordinated design of the drive lock cylinder 510 and the connecting member 520. The drive lock cylinder 510 can drive the connecting member 520 to rotate as needed, providing the source of power transmission. The connecting member 520 and the connecting recess 110 on the movable bolt 100 cooperate with each other, utilizing their unique structural fit to efficiently convert the rotational motion of the connecting member 520 into the linear motion of the movable bolt 100. This structural design not only ensures that the drive component 500 can accurately control the extension and retraction of the movable bolt 100 to achieve functions such as unlocking and locking, but also improves the stability and reliability of the drive system through the ingenious transformation of motion, making the power transmission of the entire lock system smooth during operation.

[0065] In this embodiment, a deadbolt element 600 is also included. The movable bolt 100 has a deadbolt groove 120. The deadbolt element 600 is configured to selectively extend into the deadbolt groove 120. When the deadbolt element 600 extends into the deadbolt groove 120, it prevents the movable bolt 100 from moving, thus achieving a deadbolt state. With the above structure, in use, the deadbolt element 600 cooperates with the deadbolt groove 120 of the movable bolt 100 to construct a reliable security mechanism. The deadbolt element 600 can selectively extend into the deadbolt groove 120 of the movable bolt 100. When the two are fully engaged, the deadbolt element 600 can form a mechanical limit, effectively preventing the movable bolt 100 from shifting, thereby locking the lock in a specific state and achieving the deadbolt function. This structural design greatly enhances the security of the lock, preventing unauthorized opening from the outside. It is suitable for scenarios with high anti-theft requirements and provides users with a higher level of protection. The security performance of the lock can be upgraded through simple operation, balancing practicality and security.

[0066] In this embodiment, the deadbolt groove 120 includes a first deadbolt groove 121 and a second deadbolt groove 122 spaced apart along the moving direction of the movable bolt 100. With this structure, during use, the first deadbolt groove 121 and the second deadbolt groove 122 spaced apart along the moving direction of the movable bolt 100 greatly enhance the flexibility and security of the deadbolt function. The dual-groove design allows the deadbolt element 600 to selectively embed into different grooves according to actual usage requirements, enabling the movable bolt 100 to be locked in different positions.

[0067] In this embodiment, the locking positions include a first locking position and a second locking position, and the unlocking positions include a first unlocking position and a second unlocking position. The first locking position corresponds to the first extended state of the movable bolt 100 when the bolt retainer 200 is installed on a left-opening door, and the second locking position corresponds to the second extended state of the movable bolt 100 when the bolt retainer 200 is installed on a right-opening door. The first unlocking position corresponds to the first retracted state of the movable bolt 100, and the second unlocking position corresponds to the second retracted state of the movable bolt 100. The first locking position corresponds to the first unlocking position, and the second locking position corresponds to the second unlocking position. Through the above structural design, this embodiment significantly improves the versatility and adaptability of the lock by precisely dividing the locking and unlocking positions. The locking positions are subdivided into a first locking position and a second locking position, respectively corresponding to different extended states of the movable bolt 100 when the bolt retainer 200 is installed on a left-opening door and a right-opening door. At the same time, a first unlocking position and a second unlocking position are set to correspond one-to-one with each other, corresponding to different retracted states of the movable bolt 100. This design allows the same lock structure to meet the installation and use requirements of both left-opening and right-opening doors. By switching the movable bolt 100 between different positions, reliable locking and unlocking functions are achieved under different door opening directions. This effectively reduces the repetitive design and manufacturing costs caused by differences in door 10 orientation, greatly improving the application range and market applicability of the lock product. It should be noted that the design of the first deadbolt groove 121 and the second deadbolt groove 122 corresponds precisely to the first locking position and the second locking position.

[0068] In this embodiment, a grip handle 700 is also included. The grip handle 700 is connected to the door 10 and provides a force fulcrum for operating the door 10. With the above-described structure, the grip handle 700, connected to the door 10, significantly optimizes the user experience and ease of use of the door 10 by constructing a reliable force fulcrum. As a key component of human-computer interaction, the grip handle 700 provides users with a stable and comfortable point of leverage. Whether opening or closing the door, or maintaining the door in a fixed position during use, it can transmit force, making the operation easier and less strenuous. Simultaneously, the grip handle 700 enhances the controllability of the door 10's operation, effectively preventing accidents caused by hand slippage or uneven force application. While improving safety, it also adds convenience and practicality to the daily use of the door 10.

[0069] An adjustable sleeve 400 is provided for installation with a door lock. The adjustable sleeve 400 is characterized by its adjustable length to accommodate the thickness t of the door 10. With this structural design, the adjustable sleeve 400 is specifically designed for door lock installation, and its core advantage lies in its flexible length adjustment to accommodate doors 10 of varying thicknesses. Through the length adjustment function, the sleeve can precisely match various door types (thickness t), eliminating the need to replace sleeves of different specifications due to differences in door thickness. This reduces installation difficulty and improves the versatility and convenience of door lock installation. Simultaneously, precise adaptation to different door thicknesses ensures a tight fit between the door lock and the door, enhancing the stability and reliability of the installed door lock, effectively improving the overall performance and security of the door lock, making the installation process more efficient, and strengthening the applicability of the door lock system.

[0070] In this embodiment, the adjustable sleeve 400 includes a base tube 410, an adjusting tube 420, and an adjusting element 430. The base tube 410 is fixedly connected to the locking bolt fixer 200, the adjusting tube 420 is movably connected to the base tube 410, and the adjusting element 430 is used to selectively fix the adjusting tube 420 to the base tube 410 along the moving path of the adjusting tube 420. With the above structure, in use, the coordinated operation of the base tube 410, the adjusting tube 420, and the adjusting element 430 achieves flexible adjustment and stable fixation of the sleeve length. The base tube 410 is securely connected to the bolt fixing device 200, providing a solid installation foundation for the entire sleeve. The adjusting tube 420 can move freely on the base tube 410, allowing the sleeve to be flexibly adjusted in length according to actual needs to adapt to door bodies of different thicknesses. The adjusting element 430 plays a key role in the movement path of the adjusting tube 420. Through a selectable fixing method, the adjusting tube 420 is precisely locked at the target position of the base tube 410, ensuring that the sleeve remains stable in the adjusted length state and preventing displacement due to external forces. Thus, while ensuring structural flexibility, a precise and reliable installation and adaptation effect is achieved.

[0071] In this embodiment, a base tube 410 and an adjusting tube 420 are included. The base tube 410 is configured to be fixedly connected to the bolt retainer 200 of the door lock. The adjusting tube 420 is fixedly connected to the base tube 410. The adjusting tube 420 is made of an easily cut material, allowing its length to be shortened by cutting away a portion of the adjusting tube 420. With the above structural design, the combination of the base tube 410 and the adjusting tube 420 provides an efficient solution for adapting to different installation scenarios. The base tube 410 is fixedly connected to the bolt retainer 200, providing a stable installation foundation for the entire sleeve structure. The adjusting tube 420 is fixed to the base tube 410 and has multiple pre-set cutting grooves 422 along the axial direction. These cutting grooves 422 serve as precise cutting markers, allowing users to quickly and conveniently shorten the length of the adjusting tube 420 by cutting away excess material according to actual needs. This design avoids complex adjustment operations and can accurately match different door thicknesses or installation spaces. While ensuring structural stability, it gives the sleeve height flexibility and adaptability, effectively improving the versatility of door lock installation.

[0072] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the protection scope of this utility model.

Claims

1. A door lock for locking or releasing a door (10), characterized in that, include: A movable bolt (100) is configured to move between a locked position and an unlocked position; A bolt retainer (200) is provided, wherein the movable bolt (100) is movably connected to the bolt retainer (200), and when the movable bolt (100) is in the locked position, the movable bolt (100) extends out of the bolt retainer (200), and when the movable bolt (100) is in the unlocked position, the movable bolt (100) retracts from the bolt retainer (200). A bolt retainer (300) is provided, wherein when the movable bolt (100) is in the locked position, the movable bolt (100) extends from the bolt retainer (200) and into the bolt retainer (300); and when the movable bolt (100) is in the unlocked position, the movable bolt (100) retracts from the bolt retainer (200) and disengages from the bolt retainer (300). An adjustable sleeve (400) is provided, which is adjustable in length to fit the thickness t of the door (10) when the door lock is installed on the door (10); A drive assembly (500) is provided for driving the movable bolt (100) to move between a locked position and an unlocked position. The drive assembly (500) includes a drive cylinder (510) and an engagement member (520). The drive cylinder (510) can selectively drive the engagement member (520) to rotate. The movable bolt (100) also includes an engagement recess (110) that engages with the engagement member (520) and is capable of converting the rotational motion of the engagement member (520) into the linear motion of the movable bolt (100).

2. The door lock according to claim 1, characterized in that, The adjustable sleeve (400) includes a base tube (410), an adjusting tube (420), and an adjusting element (430). The base tube (410) is fixedly connected to the locking bolt (200), and the adjusting tube (420) is movably connected to the base tube (410). The adjusting element (430) is used to selectively fix the adjusting tube (420) to the base tube (410) along the moving path of the adjusting tube (420). The axial direction of the adjustable sleeve (400) is defined as axial direction A, and the radial direction is defined as radial direction R. The base tube (410) and the adjusting tube (420) are connected by threads in axial direction A. The adjusting element (430) is connected by threads in radial direction R to the base tube (410), and the adjusting tube (420) is fixed by radial clamping force.

3. The door lock according to claim 2, characterized in that, The axial direction of the adjustable sleeve (400) is defined as axial direction A, and the radial direction is defined as radial direction R; the base tube (410) and the adjusting tube (420) are slidably connected in axial direction A; the adjusting tube (420) is provided with a plurality of snap-fit ​​holes (421) along axial direction A; the adjusting element (430) is threadedly connected to the base tube (410) in radial direction R, and is configured to selectively extend into one of the snap-fit ​​holes (421) to fix the adjusting tube (420).

4. The door lock according to claim 1, characterized in that, The adjustable sleeve (400) includes a base tube (410) and an adjusting tube (420); the base tube (410) is fixedly connected to the bolt retainer (200); the adjusting tube (420) is fixedly connected to the base tube (410); the adjusting tube (420) is made of an easily cut material to allow its length to be shortened by cutting away a portion of the adjusting tube (420).

5. The door lock according to claim 1, characterized in that, The adjustable sleeve (400) includes a base tube (410) and an adjusting tube (420). The base tube (410) is fixedly connected to the bolt fixing device (200), and the adjusting tube (420) is fixedly connected to the base tube (410). The adjusting tube (420) is composed of multiple adjusting units (423), which are detachably connected to each other. The adjustable sleeve (400) includes a base tube (410) and an adjusting tube (420). The base tube (410) is fixedly connected to the bolt fixing device (200). The adjusting tube (420) is composed of multiple adjusting units (423) that are detachably connected along the axial direction. The length is adjusted by increasing or decreasing the number of adjusting units (423). Adjacent adjusting units (423) are connected by threads or by snap-fit.

6. The door lock according to claim 1, characterized in that, It also includes a deadbolt element (600), on which the movable bolt (100) is provided a deadbolt groove (120); the deadbolt element (600) is configured to selectively extend into the deadbolt groove (120); when the deadbolt element (600) extends into the deadbolt groove (120), it prevents the movable bolt (100) from moving, thereby achieving a deadbolt state; the deadbolt groove (120) includes a first deadbolt groove (121) and a second deadbolt groove (122) spaced apart along the moving direction of the movable bolt (100); the locking position includes a first locking position. The lock and unlock positions are a first unlock position and a second unlock position; the first lock position corresponds to the first extended state of the movable bolt (100) when the bolt retainer (200) is installed on the left-opening door, and the second lock position corresponds to the second extended state of the movable bolt (100) when the bolt retainer (200) is installed on the right-opening door; the first unlock position corresponds to the first retracted state of the movable bolt (100), and the second unlock position corresponds to the second retracted state of the movable bolt (100); The first locking position corresponds to the first unlocking position, and the second locking position corresponds to the second unlocking position.

7. The door lock according to claim 1, characterized in that, It also includes a grip handle (700) connected to the door (10) for providing a fulcrum for operating the door (10).

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