Integrated electronic lock cylinder and electronic door lock

Abstract

The invention provides an integrated electronic lock cylinder. The integrated electronic lock cylinder comprises a shell, an electronic recognition module, a power module, a clutch mechanism and a square rod component. One end of the shell is connected with the electronic identification module, and the other end of the shell is connected with a mounting seat of the clutch mechanism; the power supply module is accommodated in the shell, is positioned between the clutch mechanism and the electronic identification module, and is respectively connected with the electronic identification module and the clutch mechanism; and the square rod part is connected with the clutch mechanism and extends out of the shell. The invention further provides an electronic door lock comprising the electronic lock cylinder.

Description

Technical Field

[0001] This invention relates to the field of electronic lock technology, and in particular to integrated electronic lock cylinders and electronic door locks. Background Technology

[0002] As a crucial component for ensuring spatial security, door locks are constantly evolving in terms of technology and function. However, traditional mechanical locks rely on physical keys, which suffer from problems such as easy loss, easy duplication, and inconvenience in carrying. Therefore, with the development of electronic technology, electronic locks have emerged, enabling unlocking through passwords, card swipes, or biometric identification, thus improving both security and convenience.

[0003] In the specific structure of the electronic lock, the applicant's previous patent application for a related electronic handle lock, such as publication number CN210636924U, discloses a spiral spring type electronic handle lock. This electronic handle lock includes components such as a clutch mechanism, a square bar, and a square bar connector. A motor drives the clutch pin to move, achieving engagement or disengagement with the slot on the connector head, thereby controlling the rotation of the square bar and the extension and retraction of the bolt to complete electronic unlocking. This structure is simple, reliable, and low-cost, making it suitable for widespread use.

[0004] The applicant also proposed a lead screw translation type electronic handle lock in CN210289413U, which uses a lead screw as a clutch mechanism and has high requirements for the precision of the motor.

[0005] However, in practical applications, it has been found that these electronic locks still have areas for improvement. First, the components remain complex, loosely connected, and not highly integrated. Each component of the lock cylinder needs to be individually installed onto the door handle, resulting in poor overall integrity. When replacing an old lock, the entire handle and lock cylinder usually need to be replaced, making it inconvenient for retrofitting old locks. Therefore, existing electronic lock cylinders are usually integrated with the handle, making it difficult to sell the electronic lock cylinder as a standalone product. Second, the screw-type clutch mechanism requires a high-precision motor, leading to higher costs. Third, due to significant differences in door thickness, the square bar, as the core component for transmitting torque, needs its length precisely matched to the door thickness. In existing structures, the square bar is of a fixed length, often requiring custom-made or on-site cutting based on the specific door thickness. This not only increases installation complexity and time costs but also places higher demands on the installer's expertise, severely impacting construction efficiency and user experience. Furthermore, there may be instances where the square bar and clutch mechanism do not align properly, affecting usability. In short, there is still room for improvement in the existing technology. Summary of the Invention

[0006] This invention overcomes the shortcomings of the prior art, providing an integrated electronic lock cylinder and its electronic handle lock, which helps to improve the integrity of the lock cylinder, reduce the complexity and difficulty of installation, improve installation efficiency, and ensure accurate movement of the clutch pin spring frame and accurate alignment with the square bar connector, thereby improving operational stability.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: An integrated electronic lock cylinder includes a housing, an electronic identification module, a power module, a clutch mechanism, and a square bar component; one end of the housing is connected to the electronic identification module, and the other end is connected to the mounting base of the clutch mechanism; the power module is housed inside the housing and located between the clutch mechanism and the electronic identification module, and is connected to both the electronic identification module and the clutch mechanism respectively; the square bar component engages with the clutch mechanism and extends out of the housing.

[0008] Furthermore, the clutch mechanism includes the mounting base, mounting sleeve, clutch pin spring bracket, and clutch drive assembly. The mounting sleeve is sleeved with the mounting base, and the clutch mechanism and the square bar connector in the square bar component constitute a clutch system.

[0009] Furthermore, the integrated electronic lock cylinder is mounted on the handle, which includes a handle grip and a handle tube; the handle tube has an internal cavity for accommodating the integrated electronic lock cylinder, and the handle tube includes an electronic identification end and a mounting slot end. The electronic identification module is located at the electronic identification end, and the mounting slot end is disposed opposite to the identification end. The mounting slot end is provided with a slot, and the edge of the mounting base is provided with a locking block protruding outward, the locking block engaging with the locking slot.

[0010] Furthermore, the square bar component includes a square bar connector, a guide rod, and a square bar. One end of the guide rod is fixed to the square bar connector, and the other end is connected to the square bar. The square bar connector has a slot on the side facing the clutch pin spring holder, and the clutch pin spring holder is movable, allowing it to be inserted into or detached from the slot. The inner wall of the mounting base has a guide groove, and the clutch pin spring holder is slidably connected in the guide groove. The central axis of the square bar connector, the movement path of the clutch pin spring holder, and the rotation axis of the handle are all aligned. When the clutch pin spring holder is engaged, it always slides axially in the guide groove of the mounting base. When the handle rotates along the rotation axis, it drives the mounting base and the clutch pin spring holder in the guide groove to rotate synchronously. When the clutch pin in the clutch pin spring holder is inserted into the slot of the square bar connector, the square bar connector and the clutch pin spring holder are in a connected state, and the handle drives the square bar to rotate, entering the unlocked state. When the clutch pin in the clutch pin spring holder is disengaged from the slot of the square bar connector, the square bar connector and the clutch pin spring holder are in a disengaged state, the handle cannot drive the square bar to rotate, and it enters the locked state.

[0011] Furthermore, the clutch drive assembly includes a motor and a coil spring; the motor has a motor shaft, and the clutch pin spring holder and the coil spring are sleeved on the motor shaft; both ends of the coil spring abut against the inner side of the clutch pin spring holder; a pin is fixedly provided on the motor shaft, the pin is located in the gap between adjacent coils of the coil spring, and rotates along the spiral line of the coil spring with the motor shaft; the motor is used to drive the motor shaft to rotate, thereby driving the pin to rotate and pushing the coils of the coil spring, causing the coil spring to move axially along the motor shaft; when the motor rotates in both directions, it further drives the clutch pin spring holder to move back and forth along the motor shaft axis; the clutch pin spring holder, driven by the coil spring, can be inserted into the slot to form an unlocked state, or disengaged from the slot to form a locked state.

[0012] Furthermore, the square bar component also includes an elastic clamping assembly, which acts between the square bar connector and the square bar, and provides the square bar with an elastic preload force away from the square bar connector; when the square bar is subjected to an external force in the direction of the square bar connector, it can overcome the elastic preload force and move axially; so as to adjust the length of the square bar. The square bar has a sliding hole matching the shape of the guide rod, and the elastic clamping component is coaxially sleeved on the outside of the guide rod; one end of the elastic clamping component abuts against the square bar connector, and the other end of the elastic clamping component abuts against the square bar, and the square bar is axially slidably connected to the guide rod; the square bar has a sliding groove along its length, and a sliding rod is fixedly mounted on the guide rod, the sliding rod slidingly fitting within the sliding groove; the end face of the sliding rod is lower than or flush with the outer surface of the square bar; or The square bar has an axially closed cavity inside; one end of the elastic clamping component abuts against the inner wall of the cavity, and the other end of the elastic clamping component abuts against the guide rod. This allows the length of the square bar to be adjusted to fit doors of different thicknesses.

[0013] Furthermore, the square bar component also includes a bearing, and the square bar connector is rotatably connected to the mounting base via the bearing; the rotation center axis of the bearing, the center axis of the square bar connector, and the movement path of the clutch pin spring frame coincide; the bearing facilitates the rotation of the handle relative to the square bar in the locked state.

[0014] Furthermore, the clutch pin spring holder has a first end away from the motor and a second end close to the motor. When the clutch pin spring holder moves away from the motor, the axial distance between the pin and the first end of the clutch pin spring holder is L1, and the axial distance between the end of the helical spring close to the motor and the first end of the clutch pin spring holder is L2. When the clutch pin spring holder moves close to the motor, the axial distance between the pin and the second end of the clutch pin spring holder is L3, and the axial distance between the end of the helical spring away from the motor and the second end of the clutch pin spring holder is L4. This restricts the movement of the clutch pin spring holder, limiting its forward and backward movement along the motor shaft to a certain range, ensuring that L1 < L2 or L3 < L4. This prevents the pin on the motor shaft from interfering with the helical spring when the motor shaft rotates.

[0015] When the clutch pin spring bracket enters the slot of the square bar connector, it stops moving after the first end of the clutch pin spring bracket abuts against the limiting surface of the square bar connector, or after the first end of the clutch pin spring bracket abuts against the first limiting block on the motor shaft; when the clutch pin spring bracket disengages from the slot of the square bar connector, it stops moving after the second end of the clutch pin spring bracket abuts against the motor or against the second limiting block on the motor.

[0016] Furthermore, a charging port is provided on the housing, and the power module is a rechargeable battery. An opening is also provided on the handle corresponding to the position of the charging port, so that the charging cable can be directly inserted into the charging port on the electronic lock cylinder.

[0017] An electronic door lock includes the aforementioned integrated electronic lock cylinder; it also includes a handle, a handle faceplate, a lock body, a mechanical lock cylinder, and a bolt.

[0018] Compared with the prior art, the beneficial effects of the present invention are: This invention integrates the electronic identification module, power module, clutch mechanism, and square bar mechanism into a housing, forming a single, independent unit. This creates a replaceable, easily sold integrated electronic lock cylinder, allowing for direct modification of existing handles. Users do not need to replace the entire lock; they only need to adapt their existing handles and embed the integrated electronic lock cylinder into the handle for easy installation. Furthermore, the guide rod is fitted with an elastic clamping component that abuts against the square bar. This automatically adjusts the overall length of the square bar component according to the door thickness, eliminating the need for specially selected or cut square bars, significantly reducing installation complexity and difficulty, shortening installation time, and improving installation efficiency. Additionally, the inner limiting step of the clutch pin spring bracket prevents interference between the pin and the coil spring, ensuring normal operation. The guide groove and bearing of the mounting base ensure accurate movement of the clutch pin spring bracket and accurate alignment with the square bar connector, contributing to improved operational stability. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and are used together with the embodiments of the invention to explain the invention. They do not constitute a limitation of the invention. In the drawings: Figure 1 This is a perspective view of the integrated electronic lock cylinder according to the present invention; Figure 2 This is an exploded view of the integrated electronic lock cylinder according to the present invention; Figure 3 This is a schematic diagram of the integrated electronic lock cylinder according to the present invention installed on the handle; Figure 4 This is an exploded view of the integrated electronic lock cylinder according to the present invention mounted on the handle; Figure 5 This is a perspective view of an electronic door lock including the integrated electronic lock core according to the present invention; Figure 6 This is a structural diagram of the square bar component, mounting base, and clutch pin spring bracket. Figure 1 ; Figure 7 This is a structural diagram of the square bar component, mounting base, and clutch pin spring bracket. Figure 2 ; Figure 8 This is a schematic diagram showing the square bar component and the clutch pin spring bracket separated from the mounting base; Figure 9 It is a 3D view of the square bar component; Figure 10 This is a front view of the square bar component; Figure 11 This is a schematic diagram of the clutch mechanism; Figure 12 This is an exploded view of the clutch system; Figure 13 This is a schematic diagram showing the clutch pin spring bracket being driven by the motor to move away from the motor. Figure 14 This is a schematic diagram showing the clutch pin spring bracket being driven by the motor to move closer to the motor; Figure 15 It is a schematic diagram of a motor driving a clutch pin spring frame to move closer to the motor, wherein the clutch pin spring frame has an inner limit step; Figure 16 It is a schematic diagram of a motor driving a clutch pin spring frame to move away from the motor, wherein the clutch pin spring frame has an inner limit step; Figure 17 This is a schematic diagram of a structure in which a first limiting block is connected to another first limiting block on a motor shaft; Figure 18 This is a three-dimensional schematic diagram of the clutch pin spring holder not being embedded in the slot of the square bar connector; Figure 19 It is a schematic diagram of the structure in which the clutch pin spring frame moves and is embedded in the slot of the square bar connector; Figure 20 This is an exploded view of the square bar component, clutch mechanism, mounting base, and mounting sleeve; Figure 21 This is a structural schematic diagram of the second embodiment of the square bar component; Figure 22 This is a structural schematic diagram of the third embodiment of the square bar component; Figure 23 This is a cross-sectional view of the third embodiment of the square bar component.

[0020] In the diagram: 100. Integrated electronic lock cylinder; 1. Square bar component; 101. Square bar connector; 1011. Slot; 1012. Limiting surface; 102. Guide rod; 1021. Slide rod; 103. Square bar; 1031. Slide groove; 104. Elastic clamping assembly; 2. Clutch mechanism; 201. Motor; 2011. Motor shaft; 202. Clutch pin spring bracket; 2021. Inner limiting step; 203. Helical spring; 204. Pin; 3. Mounting base; 301. Guide groove 302. Locking block; 4. Mounting sleeve; 5. Bearing; 6. Housing; 61. Screw; 62. Snap-fit; 63. Charging port; 7. Power module; 8. Circuit board; 9. Electronic identification module; 91. Snap-fit ​​position; 10. Handle grip; 11. Handle tube; 1101. Opening; 1102. Locking position; 1103. Opening; 12. First limiting block; 13. Second limiting block; 1001. Handle face cover; 1002. Lock body; 1003. Mechanical lock cylinder; 1004. Lock tongue. Detailed Implementation The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] like Figures 1 to 2 As shown, this invention discloses an integrated electronic lock cylinder 100, including a housing 6, an electronic identification module 9, a power module 7, a clutch mechanism 2, and a square rod component 1. The electronic identification module 9 is snapped onto one end of the housing 6; a mounting base 3 is snapped onto the other end of the housing 6. The power module 7 is housed inside the housing 6 and located between the clutch mechanism 2 and the electronic identification module 9, and is connected to both the electronic identification module 9 and the clutch mechanism 2. The square rod component 1 engages with the clutch mechanism 2 and extends beyond the housing 6. By connecting and integrating the electronic identification module 9, the power module 7, the clutch mechanism 2, and the square rod mechanism 1 into the housing 6, a single, independent unit is formed, thus creating a replaceable and easily sold integrated electronic lock cylinder 100.

[0022] The housing 6 is an important component of the electronic lock cylinder. The mounting sleeve 4 is housed within the housing 6 and sleeved with the mounting base 3. In one embodiment, the housing 6 and mounting sleeve 4 are secured by screws 61. A power module 7 is housed inside the housing 6, providing power to the various components of the electronic lock cylinder 100. An electronic identification module 9 is located at the end of the housing 7 furthest from the mounting base 3. The electronic identification module 9 includes a circuit board 8 for controlling various functions of the electronic lock cylinder and for receiving user unlocking commands. The specific structure and function of the circuit board 8 and the electronic identification module 9 are described in the applicant's previous patent (publication number CN210636924U, a spiral spring type electronic handle lock), and will not be repeated here. The housing 6 also has two symmetrically distributed latches 62. Correspondingly, the electronic identification module 9 has a latch position 91, which is screwed into the latches 62 to achieve the latching connection between the electronic identification module 9 and the housing 6. In other embodiments, the electronic identification module 9 can also be fixedly connected to the housing 6 through other connection methods. In one embodiment, the power module 7 is a rechargeable battery, and the housing 6 has a charging port 63 for charging the rechargeable battery. The handle also has an opening 1103 corresponding to the charging port, so that the charging cable can be directly inserted into the charging port 63 on the electronic lock core.

[0023] See Figure 3-4 An integrated electronic lock cylinder 100 is mounted on a handle, which includes a handle grip 10 and a handle tube 11. The handle tube 11 has an internal cavity for accommodating the integrated electronic lock cylinder 100. The handle tube 11 includes an electronic identification end and a corresponding mounting slot end. An electronic identification module 9 is located at the electronic identification end, and the mounting slot end is provided with a slot 1102. A locking block 302 protrudes outward from the edge of the mounting base and engages with the slot 1102. In this embodiment, the electronic identification module 9 is a fingerprint identification module, and the electronic identification end of the handle tube 11 has an opening 1101, exposing the fingerprint reader outside the opening 1101. In other embodiments, the electronic identification module 9 can also be a Bluetooth module or other identification modules. In this case, the electronic identification end of the handle tube 11 does not need to have an opening 1101.

[0024] See Figure 5 This is a perspective view of the integrated electronic lock cylinder 100 installed on an electronic door lock according to the present invention. The electronic door lock includes: a lock body 1002, a mechanical lock cylinder 1003, a bolt 1004, a handle, a handle cover 1001, and an integrated electronic lock cylinder 100 housed in the inner cavity of the handle tube 11 of the handle.

[0025] Specifically, see Figures 6-8The square rod component 1 includes a square rod connector 101, a guide rod 102, and a square rod 103. One end of the guide rod 102 is connected to the square rod connector 101, and the other end is slidably connected to the square rod 103. An elastic clamping component 104 is sleeved on the guide rod 102. The two ends of the elastic clamping component 104 abut against the square rod connector 101 and the square rod 103, respectively, so that the square rod 103 has a tendency to retract towards the square rod connector 101. In this embodiment, the elastic clamping component 104 is a helical spring, which is coaxially sleeved on the outside of the guide rod 102. The elastic clamping component 104 acts between the square rod connector 101 and the square rod 103, and provides the square rod 103 with an elastic preload force away from the square rod connector 101. When the square rod 103 is subjected to an external force towards the square rod connector 101, it can overcome the elastic preload force and move axially to achieve adaptive adjustment of the length of the square rod component 1. The purpose of the above setting is that when the door leaf is thin, the inner handle component pushes against the square bar 103, thereby causing the square bar 103 to move towards the square bar connector 101 and squeeze the elastic pressing component 104. This structural design allows the square bar 103 to be positioned according to the thickness requirements of the door leaf, thereby adjusting the overall length of the square bar component 1 to adapt to different installation environments and usage requirements.

[0026] In addition, such as Figures 9 to 12 As shown, the clutch mechanism 2 includes a mounting base 3, a mounting sleeve 4, a clutch pin spring holder 202, and a clutch drive assembly. The mounting sleeve 3 is sleeved with the mounting base 4. The clutch mechanism 2 and the square bar connector 101 in the square bar component 1 constitute a clutch system. The square bar connector 101 has a slot 1011 on the side facing the clutch mechanism 2. The clutch pin spring holder 2 is movably disposed and can be inserted into or disengaged from the slot 1011, thereby realizing the unlocking or locking state. Mainly, the rotation center axis of the square bar component 1 is aligned with the motion axis of the clutch pin spring holder 2. Specifically, a bearing 5 is provided inside the mounting base 3. The square bar connector 101 is fixedly connected to the inner ring of the bearing 5. The square bar connector 101 is rotatably connected to the mounting base 3 through the bearing 5. A guide groove 301 is provided on the inner wall of the mounting base 3. The clutch pin spring holder 2 is slidably connected in the guide groove 301. Figure 6As shown, the rotation center axis of bearing 5, the center axis of square bar connector 101, and the moving path of clutch pin spring holder 2 coincide. Combined with the limiting effect of guide groove 301 on clutch pin spring holder 202, precise alignment of clutch pin spring holder 202 and slot 1011 can be achieved. Clutch pin spring holder 202 always slides axially in guide groove 301 of mounting base 3. When the handle rotates along the rotation axis, it drives mounting base 3 and clutch pin spring holder 202 in guide groove 301 to rotate synchronously. When the clutch pin in clutch pin spring holder 202 is engaged... When the square bar connector 101 is inserted into the slot 1011 of the square bar connector 101, the square bar connector 101 and the clutch pin spring frame 202 are in a connected state, and the handle drives the square bar 103 to rotate, entering the unlocking state; when the clutch pin in the clutch pin spring frame 202 disengages from the slot 1011 of the square bar connector 101, the square bar connector 101 and the clutch pin spring frame 202 are in a disengaged state, and the handle cannot drive the square bar 103 to rotate, entering the locking state, ensuring the precise cooperation of each component during the unlocking and locking process, and improving the reliability and stability of the electronic lock cylinder.

[0027] In this embodiment, to ensure the stability and accuracy of the sliding of the square rod 103 on the guide rod 102, a groove 1031 is provided along the length of the square rod 103, and a sliding rod 1021 is fixedly provided on the guide rod 102, the sliding rod 1021 being slidably fitted within the groove 1031. Furthermore, the end face of the sliding rod 1021 is lower than or flush with the outer surface of the square rod 103, thus preventing interference between the sliding rod 1021 and other components during sliding and ensuring the normal operation of the square rod component 1.

[0028] The clutch drive assembly includes a motor 201 and a coil spring 203. The motor 201 has a motor shaft 2011, and a clutch pin spring holder 202 is connected to the motor shaft 2011. The coil spring 203 is sleeved on the motor shaft 2011, with its two ends abutting against the clutch pin spring holder 202. A pin 204 is fixedly mounted on the motor shaft 2011, located within the gap between adjacent coils of the coil spring 203, and rotates along the helix of the coil spring 203 with the motor shaft 2011. The motor 201 drives the motor shaft 2011 to rotate, causing the pin 204 to rotate and push the coils of the coil spring 203, causing the coil spring 203 to move axially along the motor shaft 2011. When the motor 201 rotates in both directions, it further drives the clutch pin spring holder 202 to move back and forth along the motor shaft axis. The guide groove 301 provides accurate guidance for the movement of the clutch pin spring holder 202, ensuring the normal operation of the clutch mechanism 2. This prevents the clutch pin spring holder 202 from rotating when the motor shaft 2011 rotates, instead causing it to move back and forth along the guide groove 301. In this embodiment, the motor 201 is a flat motor, which has the advantage of small size and is suitable for integration into the integrated electronic lock core 100 of this invention, making the overall structure of the electronic lock core more compact. Furthermore, the ingenious arrangement of the clutch pin spring holder 202, motor shaft 2011, pin 204, and coil spring 203 ensures that the stroke of the clutch pin spring holder 202 remains fixed regardless of how the motor shaft 2011 rotates. Therefore, the precision requirements for the motor 201 are not high, reducing manufacturing costs.

[0029] Combination Figures 1 to 9 As you can see, when motor 201 starts, it drives motor shaft 2011 to rotate, which in turn drives pin 204 to rotate. During rotation, pin 204 pushes the coil spring 203, causing coil spring 203 to move axially along motor shaft 2011, thereby driving clutch pin spring holder 202. Driven by coil spring 203, clutch pin spring holder 202 can engage with slot 1011 to form an unlocked state, or disengage from slot 1011 to form a locked state.

[0030] Combination Figures 13 to 14 See, the clutch pin spring holder 202 has a first end away from the motor 201 and a second end close to the motor 201. For example... Figure 13 As shown, when the clutch pin spring holder 202 moves away from the motor 201, the axial distance between the pin 204 and the first end of the clutch pin spring holder 202 is L1, and the axial distance between the end of the coil spring 203 near the motor 201 and the first end of the clutch pin spring holder 202 is L2. Figure 14As shown, when the clutch pin spring bracket 202 moves and approaches the motor 201, the axial distance between the pin 204 and the second end of the clutch pin spring bracket 202 is L3, and the axial distance between the end of the coil spring 203 away from the motor 201 and the second end of the clutch pin spring bracket 202 is L4. This restricts the movement of the clutch pin spring bracket 202, limiting its forward and backward movement along the motor shaft axis to a certain range, ensuring that L1 < L2 or L3 < L4. This ensures that when the motor shaft 2011 rotates, the pin 204 on the motor shaft 2011 does not interfere with the coil spring 203.

[0031] In another embodiment, such as Figures 15 to 16 As shown, the inner walls on both sides of the clutch pin spring bracket 202 protrude inward to form inner limiting steps 2021. The pin 204 is located between the inner limiting steps 2021 and maintains a certain distance from the inner wall of the clutch pin spring bracket 202. Since the ends of both sides of the coil spring 203 are attached to the inner walls on both sides of the clutch pin spring bracket 202, this design not only ensures that the pin 204 will not interfere with the ends of the coil spring 203 and get stuck, but also that the pin 204 will not come out of the coil spring 203 and affect its use.

[0032] like Figure 17 As shown, another structure is provided to avoid interference between the pin 204 and the end of the coil spring 203. Specifically, a first limiting block 12 and a second limiting block 13 are respectively provided at both ends of the motor shaft 2011 to limit the travel of the clutch pin spring holder 202. In other words, by combining the size of the clutch pin spring bracket 202, the distance between the first limit block 12 and the second limit block 13, as well as the length of the coil spring 203, can be set so that when the clutch pin spring bracket 202 moves to the extreme positions on both sides, the pin 204 still maintains a distance from the end of the coil spring 203, thereby avoiding the problem of the pin 204 interfering with the end of the coil spring 203 and getting stuck.

[0033] like Figures 18 to 19As shown, another structure is provided to avoid interference between the pin 204 and the end of the coil spring 203. Specifically, the end face of the slot 1011 forms a limiting surface 1012; when the clutch pin spring holder 202 moves into the slot 1011 until it abuts the limiting surface 1012, the axial distance between the pin 204 and the limiting surface 1012 is L5, and the axial distance between the end of the coil spring 203 near the motor 201 and the limiting surface 1012 is L6. This restricts the movement of the clutch pin spring holder 202, limiting its back-and-forth movement along the motor shaft axis to a certain range, ensuring that L5 < L6, so that when the motor shaft 2011 rotates, the motor... The pin 204 on the rotating shaft 2011 does not interfere with the coil spring 203; and by designing the length of the coil spring 203, when the clutch pin spring bracket 202 moves back to the motor 201, the end of the coil spring 203 away from the motor 201 also maintains a distance from the pin 204. That is, when the clutch pin spring bracket 202 moves to the extreme positions on both sides, the pin 204 still maintains a distance from the end of the coil spring 203, thereby avoiding the problem of the pin 204 interfering with the end of the coil spring 203 and getting stuck.

[0034] exist Figures 13 to 19 In different embodiments, when the clutch pin spring bracket 202 enters the slot 1011 of the square bar connector 101, after the first end of the clutch pin spring bracket 202 abuts against the limiting surface 1012 of the square bar connector 101, or after the first end of the clutch pin spring bracket 202 abuts against the first limiting block 12 on the motor shaft 2011, it no longer moves; when the clutch pin spring bracket 202 disengages from the slot 1011 of the square bar connector 101, after the second end of the clutch pin spring bracket 202 abuts against the motor 201 or against the second limiting block 13 on the motor, it no longer moves.

[0035] exist Figures 1 to 20 In one embodiment, the cross-section of the guide rod 102 is circular. Figure 21 This is a structural schematic diagram of the second embodiment of the square bar component 1; the cross-section of the guide rod 102 can also be as shown below. Figure 21 The square bar 103 shown has a sliding hole that matches the shape of the guide rod 102. In other embodiments, the cross-section of the guide rod 102 can also be set to other shapes, such as polygons.

[0036] like Figure 22 as well as Figure 23 The diagram shown is a structural schematic of the third embodiment of the square bar component 1. A closed cavity is formed axially inside the square bar 103, and the elastic abutment component 104 is a helical spring housed within this cavity. The distal end of the guide rod 102 extends into the cavity, with one end of the helical spring abutting against the inner wall of the closed end of the cavity, and the other end abutting against the distal end of the guide rod 102.

[0037] When a user needs to unlock the door, the motor 201 drives the motor shaft 2011 to rotate. The pin 204 pushes the coil spring 203, causing the coil spring 203 to move axially. This, in turn, drives the clutch pin spring holder 202 to engage in the slot 1011 of the square bar connector 101, thus unlocking the door. At this time, the user can turn the handle 10, causing the square bar component 1 to rotate, thereby opening the door lock. When locking the door, the motor 201 rotates in the opposite direction, the pin 204 pushes the coil spring 203 to move in the opposite direction, the clutch pin spring holder 202 is pulled out of the slot 1011, and the electronic lock cylinder enters the locked state.

[0038] The guide rod 102 of this invention is fitted with an elastic clamping component 104, which abuts against a square rod 103. This allows the overall length of the square rod component 1 to be automatically adjusted according to the door leaf thickness, eliminating the need for special purchase or cutting of the square rod, significantly reducing installation complexity and difficulty, shortening installation time, and improving installation efficiency. Furthermore, the inner limiting step 2021 of the clutch pin spring bracket 202 prevents interference between the pin 204 and the coil spring 203, ensuring normal operation. The guide groove 301 and bearing 5 of the mounting base 3 ensure accurate movement of the clutch pin spring bracket 202 and accurate alignment with the square rod connector 101, contributing to improved operational stability.

[0039] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated electronic lock cylinder, characterized in that, It includes a housing, an electronic identification module, a power module, a clutch mechanism, and a square bar component; one end of the housing is connected to the electronic identification module, and the other end is connected to the mounting base of the clutch mechanism; the power module is housed inside the housing and located between the clutch mechanism and the electronic identification module, and is connected to both the electronic identification module and the clutch mechanism respectively; the square bar component engages with the clutch mechanism and extends out of the housing.

2. The integrated electronic lock cylinder according to claim 1, characterized in that, The clutch mechanism includes the mounting base, mounting sleeve, clutch pin spring bracket, and clutch drive assembly. The mounting sleeve is sleeved with the mounting base. The clutch mechanism and the square bar connector in the square bar component constitute a clutch system.

3. The integrated electronic lock cylinder according to claim 1, characterized in that, The integrated electronic lock cylinder is installed on the handle, which includes a handle grip and a handle tube. The handle tube has an internal cavity for accommodating the integrated electronic lock cylinder. The handle tube includes an electronic identification end and a mounting slot end. The electronic identification module is located at the electronic identification end. The mounting slot end is opposite to the identification end and has a locking position. The edge of the mounting base has a locking block protruding outward, and the locking block engages with the locking position.

4. The integrated electronic lock cylinder according to claim 2, characterized in that, The square bar component includes a square bar connector, a guide rod, and a square bar. One end of the guide rod is fixed to the square bar connector, and the other end is connected to the square bar. The square bar connector has a slot on the side facing the clutch pin spring holder. The clutch pin spring holder is movable and can be inserted into or detached from the slot. The inner wall of the mounting base has a guide groove, and the clutch pin spring holder is slidably connected in the guide groove. The central axis of the square bar connector, the movement path of the clutch pin spring holder, and the rotation axis of the handle coincide. The clutch pin spring holder always slides axially in the guide groove of the mounting base. When the handle rotates along the rotation axis, it drives the mounting base and the clutch pin spring holder in the guide groove to rotate synchronously. When the clutch pin in the clutch pin spring holder is inserted into the slot of the square bar connector, the square bar connector and the clutch pin spring holder are in a connected state, and the handle drives the square bar to rotate, entering the unlocked state. When the clutch pin in the clutch pin spring holder is disengaged from the slot of the square bar connector, the square bar connector and the clutch pin spring holder are in a disengaged state, and the handle cannot drive the square bar to rotate, entering the locked state.

5. The integrated electronic lock cylinder according to claim 2; characterized in that, The clutch drive assembly includes a motor and a coil spring; The motor has a motor shaft, and the clutch pin spring bracket and the helical spring are sleeved on the motor shaft; The two ends of the helical spring abut against the inner side of the clutch pin spring frame; A pin is fixedly installed on the motor shaft. The pin is located in the gap between adjacent coils of the helical spring and rotates along the helix of the helical spring with the motor shaft. The motor is used to drive the motor shaft to rotate, which in turn drives the pin to rotate and pushes the coil of the helical spring, causing the helical spring to move axially along the motor shaft. When the motor rotates in the forward and reverse directions, it drives the clutch pin spring frame to move back and forth along the motor shaft. The clutch pin spring holder, driven by the helical spring, can be inserted into the slot to form an unlocked state, or disengaged from the slot to form a locked state.

6. The integrated electronic lock cylinder according to claim 4, characterized in that, The square bar component further includes an elastic clamping assembly, which acts between the square bar connector and the square bar, and provides the square bar with an elastic preload force away from the square bar connector; when the square bar is subjected to an external force in the direction of the square bar connector, it can overcome the elastic preload force and move axially. The square bar has a sliding hole matching the shape of the guide rod, and the elastic clamping component is coaxially sleeved on the outside of the guide rod; one end of the elastic clamping component abuts against the square bar connector, and the other end of the elastic clamping component abuts against the square bar, and the square bar is axially slidably connected to the guide rod; the square bar has a sliding groove along its length, and a sliding rod is fixedly mounted on the guide rod, the sliding rod slidingly fitting within the sliding groove; the end face of the sliding rod is lower than or flush with the outer surface of the square bar; or The square bar has an axially closed cavity inside; one end of the elastic clamping component abuts against the inner wall of the cavity, and the other end of the elastic clamping component abuts against the guide rod.

7. The integrated electronic lock cylinder according to claim 4, characterized in that, The square bar component also includes a bearing, and the square bar connector is rotatably connected to the mounting base via the bearing; the rotation center axis of the bearing, the center axis of the square bar connector, and the movement path of the clutch pin spring frame coincide; the bearing facilitates the rotation of the handle relative to the square bar in the locked state.

8. The integrated electronic lock cylinder according to claim 5, wherein the clutch pin spring frame has a first end away from the motor and a second end close to the motor; when the clutch pin spring frame moves away from the motor, the axial distance between the pin and the first end of the clutch pin spring frame is L1, and the axial distance between the end of the helical spring close to the motor and the first end of the clutch pin spring frame is L2; ​​when the clutch pin spring frame moves close to the motor, the axial distance between the pin and the second end of the clutch pin spring frame is L3, and the axial distance between the end of the helical spring away from the motor and the second end of the clutch pin spring frame is L4. Its features are, The movement of the clutch pin spring bracket is restricted, limiting its forward and backward movement along the motor shaft to a certain range, ensuring that L1 < L2 or L3 < L4.

9. The integrated electronic lock cylinder according to claim 3, characterized in that, The housing has a charging port, and the power module is a rechargeable battery. The handle also has an opening corresponding to the charging port, so that the charging cable can be directly inserted into the charging port on the electronic lock cylinder.

10. An electronic door lock, characterized in that, It includes the integrated electronic lock cylinder as described in claim 1; it also includes a handle, a handle cover, a lock body, a mechanical lock cylinder, and a bolt.

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