A smart lock with a mechanical lock cylinder system

By linking the intelligent control components and the rotation components, the same lock cylinder system can be controlled both automatically and manually, solving the problem of excessively large smart locks and making it suitable for installation in narrow spaces.

CN117231071BActive Publication Date: 2026-03-06ZHEJIANG INTERTEK SMART HOME CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202311227163.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-21
Publication Date
2026-03-06
Estimated Expiration
2043-09-21

AI Technical Summary

Technical Problem

In existing smart locks, the mechanical lock cylinder system and the automatic control system are separate, resulting in a bulky lock body that cannot be installed in narrow spaces.

Method used

Design an intelligent lock with a mechanical lock cylinder system. Through the linkage of intelligent control components and rotation components, the same lock cylinder can be controlled both automatically and manually, reducing the size of the lock body.

Benefits of technology

It enables manual unlocking even when the intelligent control component fails, and the lock body is smaller, making it suitable for installation in confined spaces.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117231071B_ABST
    Figure CN117231071B_ABST
Patent Text Reader

Abstract

This invention claims protection for an intelligent lock with a mechanical lock cylinder system. The key technical features include a lock shell containing an intelligent control component, a lock cylinder, and a moving component. The moving component is electrically connected to the intelligent control component. The lock cylinder is fixedly connected to a rotating component that is rotatably connected to the lock shell and has a key slot inside. The rotating component is fixedly connected to a contact component. The key slot is slidably connected to a key segment that matches the key slot. The moving component is used to move the key segment to match or move away from the key slot. Whether the intelligent control component is activated to control the lock or the lock is manually controlled, the same lock cylinder is rotated to open and close the lock. Therefore, the lock of this invention essentially uses two different power sources to control the same mechanical lock cylinder system. Compared to existing intelligent locks that require two lock cylinder systems to achieve both automatic and manual control, this invention reduces the actual size of the lock, allowing it to be used in places with limited installation space.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to a smart lock, and more specifically, to a smart lock with a mechanical lock cylinder system. Background Technology

[0002] Smart locks are an improvement on traditional mechanical locks, offering greater intelligence and convenience in terms of user security, identification, and management. Existing smart locks include automatic control components, and some also have an additional mechanical lock cylinder system to ensure manual unlocking in case the automatic control components fail. However, such composite locks essentially use two relatively independent lock cylinder control systems, making the lock bulky and unsuitable for installation in narrow spaces. Therefore, a smart lock with a built-in mechanical lock cylinder system is needed. This system can be both automatically and manually controlled, resulting in a smaller overall lock housing.

[0003] For the reasons mentioned above, the problem that this application addresses is how to design a mechanical lock cylinder system that can be controlled both automatically and manually. Summary of the Invention

[0004] To address the shortcomings of existing technologies, a smart lock with a mechanical lock cylinder system is provided, which can be controlled both automatically and manually.

[0005] To achieve the above objectives, the following technical solution is provided: A smart lock with a mechanical lock cylinder system includes a lock shell, an intelligent control component, a lock cylinder and a moving component inside the lock shell, the moving component is electrically connected to the intelligent control component, the lock cylinder is fixedly connected to a rotating component that is rotatably connected to the lock shell, and has a key slot inside, the rotating component is fixedly connected to an abutting component, the key slot is slidably connected to a key segment that matches the key slot, and the moving component is used to drive the key segment to match or move away from the key slot;

[0006] The lock housing also contains a rotating component that is electrically connected to the intelligent control component. The rotating component is also rotatably connected to a sleeve that is driven to rotate by the rotating component. The sleeve has a notch for the abutment to pass through.

[0007] In summary, the above technical solution has the following beneficial effects: When in use, the intelligent control component can send a signal to move the key segment of the moving component. When the key segment is fully accommodated and matched with the key slot, it drives the lock cylinder to rotate, thereby causing the rotating part 5 to rotate and drive the abutting part.

[0008] In addition, the sleeve can be rotated by rotating the component, and the notch 53 on the side of the sleeve will drive the rotating component and the contact component to rotate through the contact component.

[0009] The rotating component drives the abutment component to rotate, which is the part that realizes the opening and closing of the lock. The abutment component can be directly inserted into the key hole to form a bolt lock structure, or connected to the bolt structure. The bolt is translated by rotation. Since the bolt structure is existing technology, it will not be described in detail.

[0010] When the intelligent control components fail, simply insert the mechanical key into the key slot and turn the lock cylinder to drive the rotating and abutting parts to rotate. At this time, the abutting parts can be driven at the notch, so it will not affect the opening and closing of the lock.

[0011] Whether the lock is switched on or off by activating the intelligent control component or by manual control, the same lock cylinder is rotated to open and close the lock. Therefore, the lock of this invention essentially uses two different power sources to control the same mechanical lock cylinder system. Compared with the existing technology that uses two lock cylinder systems to achieve both automatic and manual control functions, this invention reduces the actual size of the lock, allowing it to be used in places with limited installation space. Attached Figure Description

[0012] Figure 1 A three-dimensional structural diagram of an intelligent lock with a mechanical lock cylinder system;

[0013] Figure 2 An exploded view of a lock body and its surrounding components;

[0014] Figure 3 This is a frontal cross-sectional view of the inside of the lock case;

[0015] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0016] Figure 5 This is a three-dimensional structural diagram of the lock case and its surrounding components;

[0017] Figure 6 This is a side sectional view of the lock case.

[0018] Reference numerals: 1. Lock housing; 2. Intelligent control component; 3. Moving component; 4. Rotating component; 5. Rotating element; 6. Lock cylinder;

[0019] 11. Through slot; 12. Lock body; 13. Fingerprint recognition device; 14. Password control device; 15. Lock tongue; 16. Third spring;

[0020] 31. First motor; 32. Threaded sleeve; 33. Threaded rod; 34. First bevel gear; 35. Second bevel gear; 36. First drive shaft;

[0021] 41. Second motor; 42. Third bevel gear; 43. Fourth bevel gear; 44. Second drive shaft; 45. First limiting component;

[0022] 51. Abutting component; 52. Sleeve; 53. Notch; 54. Receiving cavity;

[0023] 521. Second moving part; 522. Chamber; 523. Second spring; 524. Second limiting part; 525. Through port;

[0024] 61. Key slot; 62. Key segment; 63. Flat-headed pin; 64. Round-headed pin;

[0025] 631. First spring; 632. First moving part. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0027] Reference Figure 1-4 As shown, an intelligent lock with a mechanical lock cylinder system includes a lock shell 1, an intelligent control component 2, a lock cylinder 6 and a moving component 3 inside the lock shell 1. The moving component 3 is electrically connected to the intelligent control component 2. The lock cylinder 6 is fixedly connected to a rotating component 5 that is rotatably connected to the lock shell 1, and has a key groove 61 inside. The rotating component 5 is fixedly connected to an abutment component 51. The key groove 61 is slidably connected to a key segment 62 that matches the key groove 61. The moving component 3 is used to drive the key segment 62 to match or move away from the key groove 61.

[0028] The lock housing 1 is also provided with a rotating component 4 electrically connected to the intelligent control component 2. The rotating component 5 is also rotatably connected to a sleeve 52 that is driven to rotate by the rotating component 4. The sleeve 52 is provided with a notch 53 for the abutment component 51 to pass through.

[0029] When in use, the intelligent control component 2 can send a signal to move the key segment 62 of the moving component 3. When the key segment 62 is fully accommodated and matched with the key groove 61, it drives the lock cylinder 6 to rotate, which in turn causes the rotating component 5 to rotate, thereby driving the abutting component 51.

[0030] In addition, the sleeve 52 can be rotated by rotating component 4, and the side of the notch 53 provided on the sleeve 52 will rotate by contacting the contacting member 51.

[0031] The rotating part 5 drives the abutment part 51 to rotate, which is the component that realizes the opening and closing of the lock. The abutment part 51 can be directly inserted into the key hole to form a bolt lock structure, or connected to the bolt structure. The bolt is translated by rotation. Since the bolt structure is existing technology, it will not be described in detail.

[0032] When the intelligent control component 2 fails, simply insert the mechanical key into the key slot 61 and turn the lock cylinder 6 to drive the rotating part 5 and the abutting part 51 to rotate. At this time, the abutting part 51 can be driven at the notch 53, so it will not affect the opening and closing of the lock.

[0033] Whether the smart control component 2 is activated to control the lock or the lock is manually controlled, the same lock cylinder 6 is rotated to open and close the lock. Therefore, the lock of the present invention essentially uses two different power sources to control the same set of mechanical lock cylinder 6 systems. Compared with the prior art, which uses two sets of lock cylinder 6 systems to achieve both automatic and manual control functions, the actual size of the lock is reduced, allowing the lock to be used in places with narrow installation space.

[0034] Furthermore, the moving component 3 includes a first motor 31, the first motor 31 is connected to a threaded sleeve 32, the threaded sleeve 32 is threadedly connected to a threaded rod 33, and the end of the threaded rod 33 away from the threaded sleeve 32 is fixedly connected to the key segment 62.

[0035] The first motor 31 is fixedly connected to the first bevel gear 34, the first bevel gear 34 is meshed with the second bevel gear 35, the second bevel gear 35 is fixedly connected to the first drive shaft 36, one end of the first drive shaft 36 is rotatably connected to the lock housing 1, and the other end of the first drive shaft 36 is fixedly connected to the threaded sleeve 32.

[0036] The first motor 31 drives the second bevel gear 35 to rotate via the first bevel gear 34. The second bevel gear 35 drives the threaded sleeve 32 to rotate via the first transmission shaft 36. Since the relative position of the threaded sleeve 32 is fixed, the threaded sleeve 32 will drive the threaded rod 33 to rise and fall when it rotates, thereby driving the key segment 62 to accommodate and match the key slot 61 or move away from the key slot 61, realizing the pre-action of automatic control of the lock switch.

[0037] Furthermore, the rotating assembly 4 includes a second motor 41, the second motor 41 is fixedly connected to a third bevel gear 42, and the third bevel gear 42 is meshed with a fourth bevel gear 43 which is fixedly connected to the sleeve 52;

[0038] The fourth bevel gear 43 is fixedly connected to a second transmission shaft 44 that is rotatably connected to the lock housing 1, and the second transmission shaft 44 is rotatably connected to the rotating component 5;

[0039] The second drive shaft 44 is fixedly connected to a first limiting member 45 that is rotatably connected to the rotating member 5 at one end inside the rotating member 5. The outer diameter of the first limiting member 45 is larger than the outer diameter of the second drive shaft 44. The rotating member 5 is provided with a receiving cavity 54 for accommodating and restricting the movement of the first limiting member 45.

[0040] The second motor 41 drives the fourth bevel gear 43 to rotate through the third bevel gear 42. When the fourth bevel gear 43 rotates, it drives the sleeve 52 to rotate, thereby realizing the automatic control of the lock switch after the previous action is completed.

[0041] In addition, the second drive shaft 44 can support the fourth bevel gear 43, sleeve 52 and rotating member 5 to fix their relative positions and prevent the structure from falling apart, while the first limiting member 45 can fix the relative positions of sleeve 52 and rotating member 5 by abutting against the receiving cavity 54, preventing sleeve 52 from separating from rotating member 5.

[0042] Furthermore, the lock cylinder 6 is provided with a flat-headed pin 63 at one end near the sleeve 52. The flat-headed pin 63 is fixedly connected to a first spring 631 fixedly connected to the lock shell 1 at the end away from the lock cylinder 6. The flat-headed pin 63 is fixedly connected to a first moving member 632 at the end near the sleeve 52. The lock shell 1 is also provided with a through groove 11 for the first moving member 632 to move. The sleeve 52 is slidably connected to a second moving member 521 that abuts against the first moving member 632. The cross section of the second moving member 521 at the end near the flat-headed pin 63 is inverted trapezoidal.

[0043] The sleeve 52 is also provided with a chamber 522 for accommodating the second moving part 521. The end of the second moving part 521 away from the flat-headed pin 63 is fixedly connected to a second spring 523 that is fixedly connected to the inner wall of the chamber 522. The lock cylinder 6 is provided with a plurality of round-headed pins 64 at the end away from the moving component 3.

[0044] The second moving part 521 is also fixedly connected to a second limiting part 524 with an outer diameter larger than the second moving part 521 and slidably connected to the inner wall of the chamber 522. The chamber 522 is provided with a passage 525 for the second moving part 521 to slide at one end near the flat-headed ball 63.

[0045] When no mechanical key or key segment 62 is matched in the key slot 61, the flat-head pin 63 pops out under the action of the first spring 631. The end of the second moving part 521 near the flat-head pin 63 is accommodated in the through groove 11. The first moving part 632 is located below the second moving part 521. If the sleeve 52 rotates at this time, the second moving part 521 will abut against the inner wall of the through groove 11 and cannot move. As a result, the sleeve 52 cannot rotate, thus preventing the lock from being opened by accidental rotation of the rotating component 4.

[0046] When the mechanical key or key segment 62 is matched in the key slot 61, the flat-headed tumbler 63 is squeezed by the mechanical key or key segment 62, and the first moving member 632 moves upward. Since the cross section of the second moving member 521 near the flat-headed tumbler 63 is inverted trapezoidal, the second moving member 521 can be squeezed out when the first moving member 632 abuts against it. At this time, when the sleeve 52 is rotated, the second abutting member 51 will not abut against the inner wall of the through groove 11, so the sleeve 52 can be rotated.

[0047] After the sleeve 52 returns to its original position and the mechanical key or key segment 62 is removed, the flat-head tumbler 63 is ejected again by the first spring 631, and both the first moving part 632 and the second moving part 521 are reset.

[0048] The second spring 523 can be compressed when the first moving member 632 presses the second moving member 521, and then drive the second moving member 521 to reset after the first moving member 632 resets. In addition, the second limiting member 524 prevents the second moving member 521 from disengaging from the sleeve 52 by abutting against the inner wall of the cavity 522.

[0049] Furthermore, the lock cylinder 6 is provided with a plurality of round-headed pins 64 at the end away from the moving component 3 for changing the tooth pattern, thereby realizing the most basic mechanical encryption function of the lock.

[0050] Furthermore, the lock housing 1 is also fixedly connected to the lock body 12, which is equipped with a fingerprint recognition device 13 and a password control device 14 that are electrically connected to the intelligent control component 2. The lock body 12 also includes a bolt 15 that abuts against the contact member 51 and a third spring 16 sleeved on the bolt 15.

[0051] When the abutment 51 rotates, the abutment 51 gradually abuts the bolt 15, causing the bolt 15 to extend out of the lock body 12, thereby achieving the locking function;

[0052] When the abutment 51 is reset, the abutment 51 no longer abuts the latch 15, and the latch 15 is gradually reset by the third spring 16, thereby realizing the unlocking function.

[0053] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An intelligent lock with a mechanical lock cylinder system, characterized in that, The application relates to a lock shell (1) which is internally provided with an intelligent control assembly (2), a lock cylinder (6) and a moving assembly (3), the moving assembly (3) is electrically connected with the intelligent control assembly (2), the lock cylinder (6) is fixedly connected with a rotating piece (5) which is rotationally connected with the lock shell (1) and internally provided with a key slot (61), the rotating piece (5) is fixedly connected with a resisting piece (51), the key slot (61) is slidably connected with a key section (62) which is matched with the key slot (61), and the moving assembly (3) is used for driving the key section (62) to match or move away from the key slot (61). The lock shell (1) is internally further provided with a rotating assembly (4) which is electrically connected with the intelligent control assembly (2), the rotating piece (5) is further rotationally connected with a sleeve (52) which is driven to rotate by the rotating assembly (4), the sleeve (52) is provided with a gap (53) for the resisting piece (51) to pass through, the rotating assembly (4) can drive the sleeve (52) to rotate, and the gap (53) on the sleeve (52) drives the rotating piece (5) and the resisting piece (51) to rotate through the resisting resisting piece (51). The lock cylinder (6) is provided with a flat-head pin (63) close to the sleeve (52), one end of the flat-head pin (63) away from the lock cylinder (6) is fixedly connected with a first spring (631) which is fixedly connected with the lock shell (1), one end of the flat-head pin (63) close to the sleeve (52) is fixedly connected with a first moving piece (632), the lock shell (1) is further provided with a through slot (11) for the first moving piece (632) to move, the sleeve (52) is slidably connected with a second moving piece (521) which is in abutment with the first moving piece (632), and the cross section of one end of the second moving piece (521) close to the flat-head pin (63) is inverted trapezoidal. When the key slot (61) is not matched with a mechanical key or the key section (62), the flat-head pin (63) is ejected under the action of the first spring (631). When the key slot (61) is matched with a mechanical key or the key section (62), the flat-head pin (63) is pressed by the mechanical key or the key section (62). In use, the intelligent control assembly (2) can send signals to make the moving assembly (3) move the key section (62), when the key section (62) is completely accommodated and matched with the key slot (61), the sleeve (52) is driven to rotate by the rotating assembly (4), and the gap (53) on the sleeve (52) drives the rotating piece (5) and the resisting piece (51) to rotate through the resisting resisting piece (51).

2. The smart lock with a mechanical lock cylinder system according to claim 1, characterized in that, The moving assembly (3) comprises a first motor (31), the first motor (31) is connected with a threaded sleeve (32), the threaded sleeve (32) is threadedly connected with a threaded rod (33), and one end of the threaded rod (33) away from the threaded sleeve (32) is fixedly connected with the key section (62).

3. The smart lock with a mechanical lock cylinder system according to claim 2, characterized in that, The first motor (31) is fixedly connected with a first bevel gear (34), the first bevel gear (34) is meshedly connected with a second bevel gear (35), the second bevel gear (35) is fixedly connected with a first transmission shaft (36), one end of the first transmission shaft (36) is rotatably connected with the lock shell (1), the other end of the first transmission shaft (36) is fixedly connected with the threaded sleeve (32).

4. The smart lock with a mechanical lock cylinder system according to claim 1, wherein, The rotating assembly (4) comprises a second motor (41), the second motor (41) is fixedly connected with a third bevel gear (42), the third bevel gear (42) is meshedly connected with a fourth bevel gear (43) fixedly connected with the sleeve (52), the fourth bevel gear (43) is fixedly connected with a second transmission shaft (44) rotatably connected with the lock shell (1), the second transmission shaft (44) is rotatably connected with the rotating piece (5).

5. The smart lock with a mechanical lock cylinder system according to claim 4, characterized in that, One end of the second transmission shaft (44) arranged in the rotating piece (5) is fixedly connected with a first limiting piece (45) rotatably connected with the rotating piece (5), the outer diameter of the first limiting piece (45) is greater than the outer diameter of the second transmission shaft (44), the rotating piece (5) is provided with a containing cavity (54) for containing and limiting the movement of the first limiting piece (45); The first limiting piece (45) fixes the relative position of the sleeve (52) and the rotating piece (5) by abutting the containing cavity (54), preventing the sleeve (52) from separating from the rotating piece (5).

6. The smart lock with a mechanical lock cylinder system according to claim 1, wherein, The sleeve (52) is also provided with a chamber (522) for containing a second moving piece (521), one end of the second moving piece (521) away from the flat-headed marble (63) is fixedly connected with a second spring (523) fixedly connected with the inner wall of the chamber (522), and the lock cylinder (6) is provided with a plurality of round-headed marbles (64) away from the moving assembly (3).

7. The smart lock with a mechanical lock cylinder system according to claim 6, wherein, One end of the second moving piece (521) is also fixedly connected with a second limiting piece (524) having an outer diameter greater than the second moving piece (521) and being slidably connected with the inner wall of the chamber (522), and the chamber (522) is provided with a through hole (525) for sliding of the second moving piece (521) near one end of the flat-headed marble (63). The second limiting piece (524) prevents the second moving piece (521) from separating from the sleeve (52) by abutting the inner wall of the chamber (522).

8. The smart lock with a mechanical lock cylinder system according to claim 1, wherein, The lock shell (1) is also fixedly connected with a lock body (12), the lock body (12) is provided with a fingerprint identification device (13) and a password control device (14) electrically connected with the intelligent control assembly (2), and the lock body (12) further comprises a bolt (15) abutting the abutting piece (51) and a third spring (16) sleeved on the bolt (15). When the abutting piece (51) rotates, the abutting piece (51) gradually abuts the bolt (15) to make the bolt (15) protrude out of the lock body (12), thereby realizing the locking function; When the abutting piece (51) resets, the abutting piece (51) no longer abuts the bolt (15), and the bolt (15) gradually resets through the third spring (16), thereby realizing the unlocking function.

Citation Information

Patent Citations

  • Lock cylinder with adjustable length

    CN217925330U

  • Magnetic card lock

    CN2311578Y