An electric motor lock cylinder

Abstract

The application discloses a motor lock core, which comprises a motor, a reduction gearbox connected with the motor and a lock core rotor, and comprises a U-shaped main body and a lock core sleeve for installing a key lock core installed on the side of the main body away from the reduction gearbox, and a lengthening part is detachably fixed to the side of the main body close to the reduction gearbox, the top of the lengthening part is fixed on the side wall of the reduction gearbox, and the lock core rotor is rotationally arranged between the reduction gearbox and the lock core sleeve. Through the U-shaped main body + side wall transverse fixing structure, the motor, the reduction gearbox and the lock core rotor are compactly arranged along the transverse direction, the traditional axial series mode is completely broken, the axial length is shortened compared with the prior art, the lengthening part is detachably fixed to the side of the main body close to the reduction gearbox, the top is directly fixed on the side wall of the reduction gearbox, the lock core rotor is rotationally arranged between the reduction gearbox and the lock core sleeve, and each core component is compactly arranged along the transverse direction, so that the installation space limitation of a small-sized and light-weight intelligent lock is adapted, and the bottleneck that the traditional structure cannot be adapted to small-sized locks due to the too long length is broken.

Description

Technical Field

[0001] This utility model relates to the field of smart lock technology, and in particular to a motor lock cylinder. Background Technology

[0002] Door locks are devices that provide insurance and security. With the development of science and technology and people's increasing emphasis on home security, smart door locks are becoming increasingly popular due to their enhanced intelligence in user identification, security, and management. In the core drive structure of a smart lock, the motor lock cylinder is the key component for automatic unlocking. It typically consists of a motor, a gearbox, a fixing part, and a lock cylinder sleeve. The power output from the motor is reduced in speed by the gearbox and then drives the lock cylinder to rotate through the transmission structure, thus completing the lock's opening and closing operation. To ensure transmission stability, existing technologies use a fixing part on the gearbox, which, in conjunction with the fixing holes and screws of the extension part, and the matching snap-fit ​​between the fixing block and the fixing groove on the lock cylinder sleeve, achieves a secure connection between the gearbox and the lock cylinder. This effectively prevents loosening or angular deviation caused by vibration and other factors, prevents the output shaft from spinning freely, and ensures unlocking stability.

[0003] For example, Chinese Utility Model Patent No. 202320027698.0 discloses a lock cylinder reduction motor for a smart lock, including a lock cylinder and a motor. The lock cylinder includes a lock cylinder core and a lock cylinder sleeve. The lock cylinder core is located inside the lock cylinder sleeve. A reduction gearbox is connected to the motor, and an output shaft is connected to the front end of the reduction gearbox. One end of the output shaft is connected to the lock cylinder core. A transmission assembly is provided between the output shaft and the lock cylinder core. The transmission assembly includes a rotating part and a transmission part. A snap-fit ​​groove is provided on the rotating part, and the transmission part is installed in the snap-fit ​​groove. The transmission part is connected to the rotating part through the snap-fit ​​groove. The rotating part is provided with... At the front end of the output shaft, the transmission part is connected to the lock cylinder core. The output shaft is connected to the lock cylinder core through a transmission assembly. By driving the output shaft, the transmission assembly drives the lock cylinder core to rotate, thereby controlling the opening and closing of the lock. The gearbox is also provided with a fixing part, and an extension part extends from the fixing part. A fixing hole is opened on the extension part, and a screw is connected to the fixing hole. The fixing hole is connected to the lock cylinder sleeve through the screw. A fixing block is protruding from the fixing part, and a fixing groove adapted to the fixing block is opened on the lock cylinder sleeve. The fixing block is connected to the fixing groove.

[0004] However, current smart lock design trends increasingly favor miniaturization and thinness to adapt to space constraints in various installation scenarios and meet users' demands for portability and aesthetics. However, existing lock cylinder geared motors employ a series assembly structure, with the motor, gearbox, fixing part, and lock cylinder sleeve arranged sequentially along the power transmission direction, resulting in a relatively long overall length. This excessive length conflicts with the miniaturization requirements of smart locks, leading to insufficient installation space when assembling the lock cylinder geared motor inside the smart lock. This not only increases the difficulty of overall smart lock structural design but may also cause a decrease in assembly precision due to space constraints, affecting transmission efficiency and unlocking stability. Furthermore, it may even fail to meet the installation requirements of some miniaturized smart locks, limiting the diversified development and market application scope of smart lock products. Therefore, how to shorten the overall length of the motor, gearbox, fixing part, and lock cylinder sleeve while ensuring the transmission stability of the lock cylinder geared motor, making it suitable for the installation requirements of miniaturized smart locks, has become a pressing technical problem in the current smart lock technology field. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art.

[0006] This application provides a motor lock cylinder, including a motor, a gearbox connected to the motor, and a lock cylinder rotor. The feature is that it further includes a U-shaped main body and a lock cylinder sleeve for installing a key lock cylinder, which is installed on the side of the main body away from the gearbox. An extension is detachably fixed on the side of the main body near the gearbox, and the top of the extension is fixed to the side wall of the gearbox. The lock cylinder rotor is rotatably disposed between the gearbox and the lock cylinder sleeve.

[0007] Preferably, a fixing ring is fixed to one side of the motor output end by screws, an extension section is connected to the bottom of the fixing ring, a fixing screw hole is provided on the extension section, a first fixing hole is correspondingly provided on the extension part, and the extension part and the extension section are fixed together by fastening screws cooperating with the first fixing hole and the fixing screw hole.

[0008] Preferably, a fixing post is provided along the length direction on the bottom side wall of the gearbox to prevent the fastening screws from being exposed and to strengthen the connection between the gearbox and the motor. The fixing post is fixedly connected to the left and right sides of the extension, and the fixing post is provided with a through hole communicating with the first fixing hole.

[0009] Preferably, the top left side of the main body has a receiving groove for accommodating the fixing post and the end of the fastening screw.

[0010] Preferably, the top of the fixing ring is connected to an upper reinforcing lug, and the end of the gearbox facing the motor is provided with reinforcing grooves at the top and bottom for the upper reinforcing lug and the extension section to be inserted.

[0011] Preferably, the extension is provided with a second fixing hole, and the left side wall of the main body is provided with a corresponding mating fixing hole. The extension is fixed to the lower left side of the main body by fixing screws in conjunction with the second fixing hole and the mating fixing hole.

[0012] Preferably, the top right side of the main body, on the side of the lock cylinder sleeve facing the gearbox, has an empty mounting position to accommodate the rotation volume of the lock cylinder rotor, and the right end of the lock cylinder rotor is rotatably mounted at the mounting position.

[0013] Preferably, the lock cylinder rotor includes a rotor housing with a clutch hole on its inner right side, a rotating part having a snap-fit ​​groove and rotating within the rotor housing, a first elastic element disposed in the snap-fit ​​groove, a first clutch block and a second clutch block disposed to the right of the first elastic element and sliding in the snap-fit ​​groove and the clutch hole, a central shaft connected to the first clutch block, the end of the central shaft away from the first clutch block sliding through the second clutch block and connecting to a limit plate, a second elastic element disposed between the limit plate and the second clutch block, a shaft hole opened on the rotating part, and the output shaft of the gearbox extending into the shaft hole and driven by a motor to rotate the rotating part in both forward and reverse directions.

[0014] Preferably, the rotating part is provided with a guide ring groove along the circumference on the side facing the gearbox, and an annular guide plate is provided on the side wall of the gearbox facing the rotor housing. The annular guide plate is inserted into the guide ring groove, and the outer ring is in rotatable contact with the inner wall of the rotor housing, and the inner ring is in rotatable contact with the outer wall of the rotating part.

[0015] Preferably, the second clutch block has slots on its sidewalls located on the left and right sides of the limiting plate for key insertion.

[0016] The aforementioned motor lock cylinder, through a U-shaped main body and a side wall horizontal fixing structure, compactly arranges the motor, gearbox, and lock cylinder rotor horizontally, completely breaking the traditional axial series mode. The axial length is shortened compared to existing technologies. The extension part can be detachably fixed to the side of the main body near the gearbox, and the top is directly fixed to the side wall of the gearbox. The lock cylinder rotor is rotatably positioned between the gearbox and the lock cylinder sleeve. The compact horizontal arrangement of each core component effectively shortens the overall axial length, adapting to the installation space limitations of miniaturized and thin smart locks, and breaking through the bottleneck of traditional structures being unable to adapt to small locks due to excessive length.

[0017] Meanwhile, by adjusting the installation position of the main body in conjunction with the offset of the lock cylinder rotor to the outside of the door and the design of the lock cylinder sleeve moving to the right, the volume inside the door is further reduced, making it suitable for more compact smart lock installation scenarios. This achieves dual optimization of axial length and volume inside the door, solving the problem of insufficient space adaptation of traditional lock cylinders in miniaturized smart locks.

[0018] The beneficial effects of this invention will be explained in detail in the embodiments, thereby making the beneficial effects more obvious. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the specific structure of an embodiment of this application.

[0020] Figure 2 This is an exploded three-dimensional schematic diagram of a specific structure according to an embodiment of this application.

[0021] Figure 3 This is a front view schematic diagram of the specific structure of an embodiment of this application.

[0022] Figure 4 for Figure 3 A schematic diagram of the specific structure of the cross section in the AA direction.

[0023] Figure 5 This is a three-dimensional structural diagram of the embodiment of this application with the main body, lock cylinder sleeve and rotor shell removed.

[0024] Figure 6 This is an exploded three-dimensional schematic diagram of the specific structure of the lock core rotor in the embodiments of this application. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0026] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0027] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0028] Example 1: like Figures 1-6As shown, a motor lock cylinder includes a motor 2, a gearbox 5 connected to the motor 2, and a lock cylinder rotor 3. In a specific embodiment of this utility model, it also includes a U-shaped main body 4 and a lock cylinder sleeve 8 for installing a key lock cylinder, which is installed on the side of the main body 4 away from the gearbox 5. An extension part 10 is detachably fixed on the side of the main body 4 near the gearbox 5. The top of the extension part 10 is fixed to the side wall of the gearbox 5. The lock cylinder rotor 3 is rotatably disposed between the gearbox 5 and the lock cylinder sleeve 8.

[0029] In this embodiment, the motor lock cylinder adopts a U-shaped main body 4 + side wall extension 10 fixing structure, which changes the traditional series arrangement of motor, gearbox, fixing part and lock cylinder sleeve compared with the prior art. The extension 10 is detachably fixed to the side of the main body 4 near the gearbox 5, and the top is directly fixed to the side wall of the gearbox 5. The lock cylinder rotor 3 is rotatably set between the gearbox 5 and the lock cylinder sleeve 8. The core components are arranged compactly in the lateral direction, which effectively shortens the overall axial length and adapts to the installation space limitations of miniaturized and thin smart locks, breaking through the bottleneck of traditional structures that cannot be adapted to small locks due to excessive length.

[0030] In a specific embodiment of this utility model, a fixing ring 1 is fixed to one side of the output end of the motor 2 by screws. An extension section 11 is connected to the bottom of the fixing ring 1. A fixing screw hole 15 is provided on the extension section 11. A first fixing hole is correspondingly provided on the extension part 10. The extension part 10 and the extension section 11 are fixed together by fastening screws 16 in cooperation with the first fixing hole and the fixing screw hole 15.

[0031] By using the fastening screw 16 in conjunction with the first fixing hole and the fixing screw hole 15, the extension part 10 and the extension section 11 are precisely fixed, thereby strengthening the connection stability between the motor 2 and the extension part 10, preventing the components from loosening due to door vibration, ensuring the accuracy of power transmission, and avoiding the output shaft from spinning freely.

[0032] In a specific embodiment of this utility model, a fixing post 14 is provided along the length direction on the bottom side wall of the gearbox 5 to prevent the fastening screw 16 from being exposed and to strengthen the connection between the gearbox 5 and the motor 2. The fixing post 14 is fixedly connected to the left and right sides of the extension 10, and the fixing post 14 is provided with a through hole 18 communicating with the first fixing hole.

[0033] The fixing column 14 is set along the bottom side wall of the gearbox 5. It avoids the fastening screw 16 by passing through the through hole 18, thus preventing it from being exposed and causing rust or damage from impact. It also strengthens the connection between the gearbox 5 and the motor 2 and the extension part 10, improves the vibration resistance of the overall structure, and further prevents component displacement.

[0034] In a specific embodiment of this utility model, the top left side of the main body 4 is provided with a receiving groove 17 for accommodating the fixing post 14 and the end of the fastening screw 16.

[0035] The receiving groove 17 of the main body 4 houses the ends of the fixing post 14 and the fastening screw 16, which not only avoids damage to the connection structure from external impacts, but also optimizes the compactness of the overall structure, prevents protruding parts from affecting the layout of other components inside the smart lock, and improves space utilization. Figure 2 As shown, the square groove of the receiving groove 17 is compatible with the square structure of the fixed column 14, which can further improve the connection stability between the gearbox 5 and the main body 4.

[0036] In a specific embodiment of this utility model, the top of the fixing ring 1 is connected to an upper reinforcing ear 21, and the gearbox 5 has reinforcing grooves 22 at the top and bottom of the end facing the motor 2 for the upper reinforcing ear 21 and the extension section 11 to be inserted.

[0037] The upper reinforcing ear 21 and the extension section 11 are respectively inserted into the reinforcing groove 22 of the gearbox 5 to form a bidirectional limit, which precisely limits the relative position of the motor 2 and the gearbox 5, avoids angular deviation during installation or use, further strengthens the connection between the two, and ensures the coaxiality of the transmission.

[0038] In a specific embodiment of this utility model, the extension part 10 is provided with a second fixing hole 12, and the left side wall of the main body 4 is provided with a corresponding fixing hole. The extension part 10 is fixed to the lower left side of the main body 4 by fixing screws 13, the second fixing hole 12 and the fixing hole.

[0039] By using the fixing screw 13 in conjunction with the second fixing hole 12 and the fixing hole, the extension part 10 and the main body 4 can be detachably and firmly connected, which not only ensures the stability of the connection, but also facilitates production assembly, later maintenance and component replacement, and improves the convenience of production and use.

[0040] Example 2: like Figures 1-6As shown, unlike Embodiment 1, in this specific embodiment of the present invention, the lock cylinder rotor 3 includes a rotor housing 33 with a clutch hole 34 on its inner right side, a rotating part 31 with a snap-fit ​​groove 32 and rotating within the rotor housing 33, a first elastic element 35 disposed in the snap-fit ​​groove 32, a first clutch block 36 and a second clutch block 37 disposed to the right of the first elastic element 35 and sliding in the snap-fit ​​groove 32 and the clutch hole 34. A central shaft 38 is connected to the first clutch block 36. The end of the central shaft 38 away from the first clutch block 36 slides through the second clutch block 37 and is connected to a limiting plate 39. A second elastic element 40 is disposed between the limiting plate 39 and the second clutch block 37. A shaft hole 41 is opened on the rotating part 31. The output shaft of the reduction gearbox 5 extends into the shaft hole 41 and is driven by the motor 2 to drive the rotating part 31 to rotate in both directions.

[0041] In this embodiment, the clutch hole 34 is located on the inside right side of the rotor housing 33, while the rotating part 31 is located on the inside left side of the rotor housing 33. The rotating part 31 essentially replaces the original lock cylinder sleeve in the prior art. In this embodiment, the step formed by the clutch hole 34 is set to the right eccentrically. Its main function is to shorten the length of the motor 2 and gearbox 5 end. With the fixed structure of the gearbox 5, the overall lateral length of the motor lock cylinder is further greatly shortened.

[0042] When the mechanical key is used to open the lock, the mechanical key is inserted into the key lock cylinder of the lock cylinder sleeve 8 using the above-mentioned technical solution. If the mechanical key is compatible, the end of the mechanical key will press against the limiting plate 39, causing the central shaft 38 and the first clutch block 36 to move to the left. At this time, the first elastic element 35 and the second elastic element 40 will be compressed. The first clutch block 36 will slide out of the clutch hole 34 and into the locking groove 32, while the second clutch block 37 will slide into the clutch hole 34 along the central shaft 38 under the force of the mechanical key. At this time, rotating the mechanical key will rotate the second clutch block 37, which will drive the rotor housing 33 to rotate through the clutch hole 34, thereby achieving the function of opening and closing the door lock. Figure 2As shown, the shapes of the first clutch block 36 and the second clutch block 37 are adapted to the shape of the clutch hole 34. After the mechanical key is pulled out, under the restoring force of the first elastic element 35 and the second elastic element 40, the first clutch block 36 slides into the clutch hole 34, while the second clutch block 37 slides out of the clutch hole 34 to the right. At this time, the motor 2 drives the output shaft, which is connected to the input end of the reduction gearbox 5, thereby driving the output shaft of the reduction gearbox 5 to rotate, which drives the rotating part 31 to rotate. The rotation of the rotating part 31 will drive the first clutch block 36 to rotate through the snap-fit ​​groove 32, which in turn drives the entire rotor housing 33 to rotate to open and close the door lock. The output shaft of the gearbox 5 drives the rotating part 31 to rotate forward and backward through the shaft hole 41 to realize electric unlocking; through the sliding structure of the first elastic element 35 and the second elastic element 40 in conjunction with the first clutch block 36 and the second clutch block 37, the mechanical unlocking function is realized, forming a dual-mode backup; the overall clutch action is smooth and the transmission is stable, which can cope with different usage scenarios such as power failure and motor failure, and avoid the risk of users being locked out.

[0043] In a specific embodiment of this utility model, the rotating part 31 is provided with a guide ring groove 42 along the circumferential direction on the side facing the reduction gearbox 5, and an annular guide plate 43 is provided on the side wall of the reduction gearbox 5 facing the rotor housing 33. The annular guide plate 43 is inserted into the guide ring groove 42, and the outer ring is in rotatable contact with the inner wall of the rotor housing 33, and the inner ring is in rotatable contact with the outer wall of the rotating part 31.

[0044] The annular guide plate 43 is inserted into the guide ring groove 42 and makes rotational contact with the inner wall of the rotor housing 33 and the outer wall of the rotating part 31, respectively, so as to achieve precise coaxial guidance between the rotating part 31 and the reduction gearbox 5, reduce friction loss during transmission, improve unlocking smoothness, and extend the service life of the rotating part 31 and the reduction gearbox 5.

[0045] In a specific embodiment of this utility model, the second clutch block 37 has slots 30 on its sidewall and on the left and right sides of the limiting plate 39 for key insertion.

[0046] The slot 30 on the side wall of the second clutch block 37 provides a precise channel for key insertion, ensuring effective cooperation between the key and the limit plate 39 during mechanical unlocking, improving the convenience and reliability of mechanical unlocking, and complementing the electric unlocking mode.

[0047] In a specific embodiment of this utility model, a mounting position 100 is provided on the top right side of the main body 4, on the side of the lock cylinder sleeve 8 facing the reduction gearbox 5, to accommodate the rotational volume of the lock cylinder rotor 3. The right end of the lock cylinder rotor 3 is rotatably mounted at the mounting position 100, and a T-shaped fixing block 42 is fixed on the outer wall of the rotor housing 33. Figure 3As shown, a through mounting hole 50 is provided on the main body 4. After the motor lock cylinder is installed, with the mounting hole 50 as the center line, the left side of the mounting hole 50 is the inner side of the door, and the right side is the outer side of the door. The structure of the lock cylinder rotor 3 is mainly used to move the length of the inner side of the door to the outer side of the door, thereby further reducing the volume of the inner side of the door.

[0048] Furthermore, at the connection between the right side of the main body 4 and the lock cylinder sleeve 8, by offsetting the lock cylinder sleeve 8 to the right, some space is freed up, namely the installation position 100, to accommodate the rotation volume of the rotor housing 33 of the fixing block 42.

[0049] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0050] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A motor lock cylinder, comprising a motor (2), a reduction gearbox (5) connected to the motor (2), and a lock cylinder rotor (3), characterized in that, It also includes a U-shaped main body (4) and a lock cylinder sleeve (8) for installing the key lock cylinder installed on the side of the main body (4) away from the gearbox (5). The main body (4) has an extension (10) detachably fixed on the side of the gearbox (5). The top of the extension (10) is fixed on the side wall of the gearbox (5). The lock cylinder rotor (3) is rotatably disposed between the gearbox (5) and the lock cylinder sleeve (8).

2. A motor lock cylinder according to claim 1, characterized in that, One side of the output end of the motor (2) is fixed with a fixing ring (1) by screws. The bottom of the fixing ring (1) is connected to an extension section (11). The extension section (11) is provided with a fixing screw hole (15). The extension part (10) is provided with a first fixing hole. The extension part (10) and the extension section (11) are fixed together by fastening screws (16) in conjunction with the first fixing hole and the fixing screw hole (15).

3. A motor lock cylinder according to claim 2, characterized in that, The gearbox (5) has a fixing post (14) along its length on the bottom side wall to prevent the fastening screws (16) from being exposed and to strengthen the connection between the gearbox (5) and the motor (2). The fixing post (14) is fixedly connected to the left and right sides of the extension (10), and the fixing post (14) has a through hole (18) that communicates with the first fixing hole.

4. A motor lock cylinder according to claim 3, characterized in that, The main body (4) has a receiving groove (17) on the top left side for accommodating the end of the fixing post (14) and the fastening screw (16).

5. A motor lock cylinder according to claim 2, characterized in that, The top of the fixed ring (1) is connected to an upper reinforcing ear (21), and the gearbox (5) facing the motor (2) has reinforcing grooves (22) on the top and bottom respectively for the upper reinforcing ear (21) and the extension section (11) to be inserted.

6. A motor lock cylinder according to claim 1, characterized in that, The extension part (10) is provided with a second fixing hole (12), and the main body (4) is provided with a corresponding fixing hole on the left side wall. The extension part (10) is fixed to the lower left side of the main body (4) by fixing screws (13) in conjunction with the second fixing hole (12) and the fixing hole.

7. A motor lock cylinder according to claim 1, characterized in that, The main body (4) is located on the top right side of the lock cylinder sleeve (8) facing the gearbox (5), with an empty mounting position (100) for the lock cylinder rotor (3) to accommodate the rotation volume of the part. The right end of the lock cylinder rotor (3) is rotatably set at the mounting position (100).

8. A motor lock cylinder according to claim 1, 2, 3, 4, 5, 6, or 7, characterized in that, The lock core rotor (3) includes a rotor housing (33) with a clutch hole (34) on the right side inside, a rotating part (31) with a snap-fit ​​groove (32) and rotating inside the rotor housing (33), a first elastic element (35) disposed in the snap-fit ​​groove (32), a first clutch block (36) and a second clutch block (37) disposed on the right side of the first elastic element (35) and sliding in the snap-fit ​​groove (32) and the clutch hole (34). A central shaft (38) is connected to the first clutch block (36). The end of the central shaft (38) away from the first clutch block (36) slides through the second clutch block (37) and is connected to a limiting plate (39). A second elastic element (40) is disposed between the limiting plate (39) and the second clutch block (37). A shaft hole (41) is opened on the rotating part (31). The output shaft of the gearbox (5) extends into the shaft hole (41) and is driven by the motor (2) to drive the rotating part (31) to rotate in both directions.

9. A motor lock cylinder according to claim 8, characterized in that, The rotating part (31) has a guide ring groove (42) circumferentially opened on the side facing the gearbox (5). The gearbox (5) has an annular guide plate (43) extending on the side wall facing the rotor housing (33). The annular guide plate (43) is inserted into the guide ring groove (42), and the outer ring is in rotational contact with the inner wall of the rotor housing (33), and the inner ring is in rotational contact with the outer wall of the rotating part (31).

10. A motor lock cylinder according to claim 8, characterized in that, The second clutch block (37) has slots (30) for key insertion on its side wall and on the left and right sides of the limiting plate (39).

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