Quick-mounting adjustable intelligent lock cylinder

CN224755510UActive Publication Date: 2026-09-15HAIKOU HUAXI INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522104351.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-09-15
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于提供快装可调智能锁芯,旨在解决现有技术中,智能锁安装不便的问题

Benefits of technology

[0015] Compared with existing technologies, the quick-install adjustable smart lock cylinder provided by this utility model, through the movable embedding connection between the outer adjusting seat and the adjusting housing, and the inner adjusting seat and the adjusting housing, combined with the telescopic drive shaft, can flexibly adapt to door bodies of different thicknesses. It can be quickly installed without professional skills, reducing the risk of damage to the door. In terms of transmission, the drive shaft runs through all components to form a stable path, ensuring stable power transmission, reducing jamming, and extending service life. Meanwhile, the segmented cavity design of the adjusting housing is compact and reasonable, ensuring functionality while reducing the lock body size, resulting in a simple appearance, adapting to various door types, and improving overall practicality and user experience.

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Abstract

The utility model relates to the technical fields of intelligent lock discloses quick -wearing adjustable intelligent lock core, including outer handle, inner handle and transmission assembly, transmission assembly includes outer adjusting seat, inner adjusting seat, the adjusting shell of horizontal arrangement and the telescopic transmission shaft, and the front part of adjusting shell forms the inner adjusting chamber, and the rear part of adjusting shell forms the outer adjusting chamber, the front end of outer adjusting seat is embedded in the outer adjusting chamber, and the outer adjusting seat is connected through the outer connecting structure between adjusting shell, the rear end of inner adjusting seat is embedded in the inner adjusting chamber, and the inner adjusting seat is connected through the inner connecting structure between adjusting shell, the rear end of transmission shaft is connected with outer handle, the front end of transmission shaft is connected with inner handle, and the middle part of transmission shaft is provided with lock core jacking, and transmission shaft passes outer adjusting seat, adjusting shell, lock core jacking and inner adjusting seat from back to front. In this way, flexible adaptation various door body is realized quick -wearing.
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Description

Technical Field

[0001] This utility model relates to the technical field of smart locks, and more specifically, to a quick-install adjustable smart lock cylinder. Background Technology

[0002] Smart locks, designed to enhance door security and convenience, are widely used in homes, offices, and other locations. They typically consist of an outer handle assembly, an inner handle assembly, and a connecting part between the two, using electronic control or mechanical transmission to unlock the door.

[0003] In existing technologies, the connection length of smart locks is mostly a fixed structure. This means that during installation, parameters such as the door thickness need to be specifically measured before installation, and then a lock body of the corresponding length needs to be customized. Alternatively, complex modifications may be required during installation because the lock body length does not match the door body, which greatly increases the difficulty of installation, reduces installation efficiency, and limits the versatility of smart locks on doors of different thicknesses. Utility Model Content

[0004] The purpose of this invention is to provide a quick-install adjustable smart lock cylinder, which aims to solve the problem of inconvenient installation of smart locks in the existing technology.

[0005] This utility model is implemented as follows: a quick-install adjustable smart lock cylinder includes an outer handle, an inner handle, and a transmission assembly connecting the outer handle and the inner handle. The transmission assembly includes an outer adjustment seat, an inner adjustment seat, a laterally arranged adjustment housing, and a retractable transmission shaft. The front part of the adjustment housing forms an inner adjustment cavity, and the rear part of the adjustment housing forms an outer adjustment cavity. The front end of the outer adjustment seat is movably embedded in the outer adjustment cavity, and the outer adjustment seat is connected to the adjustment housing through an external connection structure. The rear end of the inner adjustment seat is movably embedded in the inner adjustment cavity, and the inner adjustment seat is connected to the adjustment housing through an internal connection structure. The rear end of the drive shaft is movably connected to the outer handle, the front end of the drive shaft is connected to the inner handle, the middle part of the drive shaft is fitted with a lock cylinder support, and the drive shaft passes from back to front through the outer adjusting seat, the adjusting housing, the lock cylinder support, and the inner adjusting seat.

[0006] Optionally, the lock cylinder support is provided in the middle of the adjusting housing.

[0007] Optionally, the drive shaft includes, from back to front, an outer movable shaft, an outer bushing, an inner bushing, and an inner movable shaft in sequence; The rear part of the outer bushing is placed in the outer adjustment cavity. The rear part of the outer bushing has an outer movable cavity for the outer movable shaft to be inserted. One end of the outer movable shaft is connected to the outer handle, and the other end of the outer movable shaft is movably inserted into the outer movable cavity. The front part of the inner bushing is placed in the inner adjustment cavity. The front part of the inner bushing has an inner movable cavity for the inner movable shaft to be inserted. One end of the inner movable shaft is connected to the inner handle, and the other end of the inner movable shaft is movably inserted into the inner movable cavity. The front end of the outer bushing is fixedly connected to the rear end of the inner bushing to form a connecting part, and the lock cylinder support is sleeved on the outer periphery of the connecting part.

[0008] Optionally, the external connection structure includes an external screw, an external screw hole, and an external insertion hole; The outer periphery of the rear part of the adjusting housing is provided with a plurality of external threaded holes, which are arranged in a row along the length direction of the adjusting housing. The outer periphery of the outer adjusting seat is provided with a plurality of external insertion holes, which are arranged in a row along the length direction of the outer adjusting seat. The external screws are installed in the corresponding external threaded holes, and the ends of the external screws pass through the external threaded holes and are inserted into the corresponding external insertion holes.

[0009] Optionally, the internal connection structure includes an internal screw, an internal threaded hole, and an internal insertion hole; The outer periphery of the front part of the adjusting housing is provided with a plurality of internal threaded holes, which are arranged in a row along the length of the adjusting housing. The outer periphery of the inner adjusting seat is provided with a plurality of internal insertion holes, which are arranged in a row along the length of the inner adjusting seat. The internal screw is installed in the corresponding internal threaded hole, and the end of the internal screw passes through the internal threaded hole and is inserted into the corresponding internal insertion hole.

[0010] Optionally, the inner handle includes an inner housing, the rear end of which is formed by a mounting hole, and the front end of the inner movable shaft is embedded in the mounting hole; a fixing hole is provided on the outer periphery of the inner housing, and a fixing screw is installed in the fixing hole to fix the inner handle on the inner movable shaft.

[0011] Optionally, the outer handle includes an outer shell, the outer shell having an outer shell cavity, the outer shell cavity having a lock cylinder and a drive motor arranged vertically, the front end of the lock cylinder having a movable seat, the movable seat having a downwardly extending lower extension plate, the front end of the drive motor having a telescopic shaft, and the lower extension plate being located at the front end of the telescopic shaft; The front end of the movable seat has multiple pin shafts, the front end of the pin shafts is fitted with pin seats, the front end of the pin seats is provided with the drive shaft, and the rear end face of the drive shaft is provided with multiple pin holes. During the forward extension of the telescopic shaft, the telescopic shaft pushes the lower extension plate forward, and the pin shaft is inserted into the pin hole, so that the outer shell is fixedly connected to the drive shaft.

[0012] Optionally, the outer periphery of the outer casing has a fingerprint module, and the outer end face of the outer casing is covered with an end plate; the battery compartment is located in the outer casing cavity, the battery compartment is covered with a cover plate, and the end plate is covered on the cover plate; the outer periphery of the outer casing has a mounting groove, the mounting groove is provided with a main board, and the main board is provided with a panel.

[0013] Optionally, the motherboard is provided with a display module and a touch module, and the panel is provided with a display screen and a touch area.

[0014] Optionally, the motherboard is provided with multiple buttons, and the panel is provided with button holes, with the buttons exposed on the panel.

[0015] Compared with existing technologies, the quick-install adjustable smart lock cylinder provided by this utility model, through the movable embedding connection between the outer adjusting seat and the adjusting housing, and the inner adjusting seat and the adjusting housing, combined with the telescopic drive shaft, can flexibly adapt to door bodies of different thicknesses. It can be quickly installed without professional skills, reducing the risk of damage to the door. In terms of transmission, the drive shaft runs through all components to form a stable path, ensuring stable power transmission, reducing jamming, and extending service life. Meanwhile, the segmented cavity design of the adjusting housing is compact and reasonable, ensuring functionality while reducing the lock body size, resulting in a simple appearance, adapting to various door types, and improving overall practicality and user experience. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the quick-install adjustable smart lock cylinder provided by this utility model; Figure 2 This is a cross-sectional schematic diagram of the quick-install adjustable smart lock cylinder provided by this utility model; Figure 3 This is an exploded view of the external handle provided by this utility model; Figure 4 This is a cross-sectional schematic diagram of the external handle provided by this utility model; Figure 5 This is a cross-sectional schematic diagram of the external handle provided by this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0019] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0020] Reference Figures 1-5 The image shown is a preferred embodiment of the present invention.

[0021] The quick-install adjustable smart lock cylinder provided by this utility model includes an outer handle 100, an inner handle 500, and a transmission assembly connecting the outer handle 100 and the inner handle 500. The transmission assembly includes an outer adjustment seat 200, an inner adjustment seat 400, a laterally arranged adjustment housing 300, and a telescopic transmission shaft. The front part of the adjustment housing 300 forms an inner adjustment cavity, and the rear part of the adjustment housing 300 forms an outer adjustment cavity. The front end of the outer adjustment seat 200 is movably embedded in the outer adjustment cavity, and the outer adjustment seat 200 and the adjustment housing 300 are connected by an external connection structure. The rear end of the inner adjustment seat 400 is movably embedded in the inner adjustment cavity, and the inner adjustment seat 400 and the adjustment housing 300 are connected by an internal connection structure. The rear end of the drive shaft is movably connected to the outer handle 100, the front end of the drive shaft is connected to the inner handle 500, the middle part of the drive shaft is fitted with a lock cylinder 120 and supports 700, and the drive shaft passes from back to front through the outer adjusting seat 200, the adjusting housing 300, the lock cylinder 120 and supports 700 and the inner adjusting seat 400.

[0022] The aforementioned quick-install adjustable smart lock cylinder features a movable connection between the outer adjustment seat 200 and the adjustment housing 300, and between the inner adjustment seat 400 and the adjustment housing 300. Combined with a retractable drive shaft, it can flexibly adapt to door bodies of varying thicknesses, allowing for quick installation without requiring specialized skills and reducing the risk of damage to the door. In terms of transmission, the drive shaft runs through all components to form a stable path, ensuring stable power transmission, reducing jamming, and extending service life. Meanwhile, the segmented cavity design of the adjustment housing 300 is compact and reasonable, ensuring functionality while reducing the lock body size, resulting in a simple appearance, adaptability to various door types, and improved overall practicality and user experience.

[0023] The adjustment housing 300 has a lock cylinder 120 support 700 in the middle. This makes more efficient use of space and facilitates the installation of the transmission components in the lock body of the door.

[0024] Specifically, the drive shaft includes, from back to front, an outer movable shaft 610, an outer bushing 620, an inner bushing 630, and an inner movable shaft 640. The rear part of the outer bushing 620 is placed in the outer adjustment cavity. The rear part of the outer bushing 620 has an outer movable cavity for the outer movable shaft 610 to be inserted. One end of the outer movable shaft 610 is connected to the outer handle 100, and the other end of the outer movable shaft 610 is movably inserted into the outer movable cavity. The front part of the inner bushing 630 is placed in the inner adjustment cavity. The front part of the inner bushing 630 has an inner movable cavity for the inner movable shaft 640 to be inserted. One end of the inner movable shaft 640 is connected to the inner handle 500, and the other end of the inner movable shaft 640 is movably inserted into the inner movable cavity. The front end of the outer bushing 620 is fixedly connected to the rear end of the inner bushing 630 to form a connecting part, and a lock core 120 and a top support 700 are fitted around the outer periphery of the connecting part. In this way, the drive shaft moves and extends with the movement of the outer adjusting seat 200 and the inner adjusting seat 400.

[0025] Specifically, during installation, the outer handle 100 and the transmission assembly can be inserted into the lock body. During this insertion process, the outer adjustment seat 200 is adjusted to ensure that the lock cylinder 120 top support 700 is in the set position. Then, the inner adjustment seat 400 is adjusted so that the inner movable shaft 640 extends out of the lock body by a certain length, and the inner handle 500 is installed to achieve quick installation.

[0026] In this embodiment, the external connection structure includes an external screw 210, an external screw hole, and an external insertion hole 201; The outer periphery of the rear part of the adjusting housing 300 has multiple external threaded holes, arranged in a straight line along the length of the adjusting housing 300. The outer periphery of the outer adjusting seat 200 has multiple external insertion holes 201, also arranged in a straight line along the length of the outer adjusting seat 200. External screws 210 are correspondingly installed in the external threaded holes, with the end of the external screw 210 protruding from the external threaded hole and inserted into the corresponding external insertion hole 201. Thus, multiple external insertion holes 201 can be designed, ranging from 2 to 6, with each external insertion hole 201 spaced 2mm-10mm apart, representing a different adjustment range every 2-10mm. This allows the outer adjusting seat 200 to adjust within a range of 2-60mm.

[0027] In this embodiment, the internal connection structure includes an internal screw 410, an internal threaded hole, and an internal insertion hole 401; The outer periphery of the front part of the adjusting housing 300 has multiple internal threaded holes arranged in a straight line along the length of the adjusting housing 300. The outer periphery of the inner adjusting seat 400 has multiple internal insertion holes 401 arranged in a straight line along the length of the inner adjusting seat 400. Internal screws 410 are correspondingly installed in the internal threaded holes, with the end of the internal screw 410 protruding from the internal threaded hole and inserted into the corresponding internal insertion hole 401. Thus, multiple internal insertion holes 401 can be designed, ranging from 6 to 10 holes, with each hole 401 spaced 2mm-10mm apart, representing a different adjustment range every 2-10mm. This allows the inner adjusting seat 400 to adjust within a range of 2-100mm.

[0028] The inner handle 500 includes an inner housing with a mounting hole at its rear end. The front end of the inner movable shaft 640 is inserted into the mounting hole. A fixing hole 501 is provided on the outer periphery of the inner housing, and a fixing screw 510 is installed in the fixing hole 501 to fix the inner handle 500 onto the inner movable shaft 640. This allows for quick installation of the inner handle 500 after the transmission part and the outer handle 100 are installed, greatly improving installation efficiency.

[0029] The outer handle 100 includes an outer shell, which has an outer shell cavity. The outer shell cavity is provided with a lock cylinder 120 and a drive motor 130 distributed vertically. The front end of the lock cylinder 120 is provided with a movable seat 140. The movable seat 140 has a downwardly extending lower extension plate 141. The front end of the drive motor 130 has a telescopic shaft, and the lower extension plate 141 is located at the front end of the telescopic shaft. The front end of the movable seat 140 has multiple pin shafts 142, the front end of the pin shaft 142 is fitted with a pin seat, the front end of the pin seat is provided with a drive shaft, and the rear end face of the drive shaft is provided with multiple pin holes. As the telescopic shaft extends forward, it pushes the lower extension plate 141 forward, and the pin shaft 142 is inserted into the pin hole, thus fixing the outer casing to the drive shaft. In this way, the design of the upper and lower distributed lock cylinders 120 and drive motor 130 in conjunction with the lower extension plate 141 significantly reduces the component size, meeting the miniaturization requirements of smart locks.

[0030] The pin holder can guide the pin shaft 142 to move in a set moving direction.

[0031] The lock cylinder 120 is equipped with a keyhole. By inserting the key into the keyhole and rotating the key, the device inside the lock cylinder 120 is triggered, the front end of the lock cylinder 120 extends and moves forward against the moving seat 140, so that the pin shaft 142 is connected to the transmission shaft. Then, the transmission shaft is rotated, and the smart lock can be opened.

[0032] The outer casing has a fingerprint module 110 on its outer periphery, and an end plate 102 is sealed on the outer end face of the outer casing. A battery compartment is located inside the outer casing cavity, and a cover plate 101 is sealed on the battery compartment, with the end plate 102 also sealed on the cover plate 101. A mounting groove is located on the outer periphery of the outer casing, and a main board 103 is mounted on the mounting groove. A panel 104 is mounted on the main board 103. Thus, a battery can be installed in the battery compartment to provide power, and fingerprint recognition is achieved through the fingerprint module 110.

[0033] When unlocking is performed using fingerprint or password, the circuit board brain sends a command to the drive motor 130, which drives the telescopic push rod to push the moving seat 140, connecting the pin shaft 142 to the transmission shaft. Then, with the transmission shaft turning, the lock cylinder 120 moves against the support 700, the bolt on the lock body retracts, and the smart lock can be opened.

[0034] The motherboard 103 is equipped with a display module 1030 and a touch module 1031, while the panel 104 is equipped with a display screen 1040 and a touch area 1041. Thus, the display screen 1040 can be used to intuitively display various data, such as battery level, password verification, and entered information.

[0035] In this embodiment, refer to Figure 5 As shown, the motherboard 103 has multiple buttons 105, and the panel 104 has button holes, with the buttons 105 exposed on the panel 104. This design allows the buttons 105 to replace touchscreens, catering to users who prefer physical feedback.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-mounting adjustable intelligent lock cylinder, characterized in that, It includes an outer handle, an inner handle, and a transmission assembly that connects the outer handle and the inner handle. The transmission assembly includes an outer adjustment seat, an inner adjustment seat, a laterally arranged adjustment housing, and a telescopic transmission shaft. The front part of the adjustment housing forms an inner adjustment cavity, and the rear part of the adjustment housing forms an outer adjustment cavity. The front end of the outer adjustment seat is movably embedded in the outer adjustment cavity, and the outer adjustment seat is connected to the adjustment housing through an external connection structure; the rear end of the inner adjustment seat is movably embedded in the inner adjustment cavity, and the inner adjustment seat is connected to the adjustment housing through an internal connection structure. The rear end of the drive shaft is movably connected to the outer handle, the front end of the drive shaft is connected to the inner handle, the middle part of the drive shaft is fitted with a lock cylinder support, and the drive shaft passes from back to front through the outer adjusting seat, the adjusting housing, the lock cylinder support and the inner adjusting seat.

2. The quick-mounting adjustable intelligent lock cylinder of claim 1, wherein, The lock cylinder support is located in the middle of the adjusting housing.

3. The quick-install adjustable smart lock cylinder as described in claim 2, characterized in that, The drive shaft, from back to front, includes an outer movable shaft, an outer bushing, an inner bushing, and an inner movable shaft in sequence. The rear part of the outer bushing is placed in the outer adjustment cavity. The rear part of the outer bushing has an outer movable cavity for the outer movable shaft to be inserted. One end of the outer movable shaft is connected to the outer handle, and the other end of the outer movable shaft is movably inserted into the outer movable cavity. The front part of the inner bushing is placed in the inner adjustment cavity. The front part of the inner bushing has an inner movable cavity for the inner movable shaft to be inserted. One end of the inner movable shaft is connected to the inner handle, and the other end of the inner movable shaft is movably inserted into the inner movable cavity. The front end of the outer bushing is fixedly connected to the rear end of the inner bushing to form a connecting part, and the lock cylinder support is sleeved on the outer periphery of the connecting part.

4. The quick-install adjustable smart lock cylinder as described in claim 1, characterized in that, The external connection structure includes an external screw, an external screw hole, and an external insertion hole; The outer periphery of the rear part of the adjusting housing is provided with a plurality of external threaded holes, which are arranged in a row along the length direction of the adjusting housing. The outer periphery of the outer adjusting seat is provided with a plurality of external insertion holes, which are arranged in a row along the length direction of the outer adjusting seat. The external screws are installed in the corresponding external threaded holes, and the ends of the external screws pass through the external threaded holes and are inserted into the corresponding external insertion holes.

5. The quick-install adjustable smart lock cylinder as described in claim 1, characterized in that, The internal connection structure includes an internal screw, an internal threaded hole, and an internal insertion hole; The outer periphery of the front part of the adjusting housing is provided with a plurality of internal threaded holes, which are arranged in a row along the length of the adjusting housing. The outer periphery of the inner adjusting seat is provided with a plurality of internal insertion holes, which are arranged in a row along the length of the inner adjusting seat. The internal screw is installed in the corresponding internal threaded hole, and the end of the internal screw passes through the internal threaded hole and is inserted into the corresponding internal insertion hole.

6. The quick-install adjustable smart lock cylinder as described in claim 3, characterized in that, The inner handle includes an inner housing, the rear end of which is formed by a mounting hole, and the front end of the inner movable shaft is inserted into the mounting hole; a fixing hole is provided on the outer periphery of the inner housing, and a fixing screw is installed in the fixing hole to fix the inner handle on the inner movable shaft.

7. The quick-install adjustable smart lock cylinder as described in any one of claims 1 to 6, characterized in that, The outer handle includes an outer shell, which has an outer shell cavity. The outer shell cavity is provided with a lock cylinder and a drive motor distributed vertically. The front end of the lock cylinder is provided with a movable seat, which has a downwardly extending lower plate. The front end of the drive motor is provided with a telescopic shaft, and the lower plate is located at the front end of the telescopic shaft. The front end of the movable seat has multiple pin shafts, the front end of the pin shafts is fitted with pin seats, the front end of the pin seats is provided with the drive shaft, and the rear end face of the drive shaft is provided with multiple pin holes. During the forward extension of the telescopic shaft, the telescopic shaft pushes the lower extension plate forward, and the pin shaft is inserted into the pin hole, so that the outer shell is fixedly connected to the drive shaft.

8. The quick-install adjustable smart lock cylinder as described in claim 7, characterized in that, The outer periphery of the outer casing has a fingerprint module, and the outer end face of the outer casing is covered with an end plate; the battery compartment is located in the outer casing cavity, the battery compartment is covered with a cover plate, and the cover plate is covered with an end plate; the outer periphery of the outer casing has a mounting groove, the mounting groove is provided with a main board, and the main board is provided with a panel.

9. The quick-install adjustable smart lock cylinder as described in claim 8, characterized in that, The motherboard is equipped with a display module and a touch module, and the panel is equipped with a display screen and a touch area.

10. The quick-install adjustable smart lock cylinder as described in claim 8, characterized in that, The motherboard has multiple buttons, and the panel has button holes, with the buttons exposed on the panel.