Fingerprint luggage lock capable of preventing motor from being stuck
By designing a switch-blocking linkage in the luggage lock to prevent the motor from rotating in one direction, the problem of motor jamming is solved, the motor life is extended and the power consumption of the motor is saved. The lock has a compact structure and various unlocking methods.
Patent Information
- Application Number
- CN202520241643.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-14
AI Technical Summary
The existing motor drive structure of luggage locks is prone to jamming, making it impossible to unlock and damaging the lock.
A fingerprint lock for bags was designed to prevent motor jamming. By blocking the linkage of the motor-driven components through a switch, the motor only needs to rotate in one direction. The linkage drives the lock cylinder assembly to move, providing 360° rotation space, reducing the friction of the reducer, and saving the power consumption of the motor.
It effectively prevents motor jamming, extends motor life, reduces motor power consumption, has a compact structure, stable locking state, and offers multiple unlocking methods.
Smart Images
Figure CN223593949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock technology, and in particular to a fingerprint lock for bags that prevents motor jamming. Background Technology
[0002] Locks are devices that serve a sealing function, including locks, keys, and their accessories. They are generally defined as "sealing devices that can only be opened with a key." Besides keys, locks can also be opened using light, electricity, magnetism, sound, and fingerprint signals. Locks are not only protective devices but also serve management and decorative purposes. Luggage locks are a type of lock installed on luggage to lock closed luggage and prevent accidental opening or theft.
[0003] To facilitate unlocking, existing luggage locks typically use fingerprint unlocking, where a fingerprint command triggers a motor to drive the lock cylinder. However, this motor drive structure carries the risk of jamming, which can prevent unlocking and damage the luggage lock. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a fingerprint lock for bags that prevents motor jamming. This invention has the advantage of preventing motor jamming and extending the service life of the motor.
[0005] The technical solution adopted by this utility model is as follows: A fingerprint lock for preventing motor jamming includes a first lock body and a second lock body installed on the bag. The first lock body is locked to the second lock body by a latch. The first lock body includes a mounting base and a housing fastened to the mounting base. A motor and a lock cylinder assembly are provided between the mounting base and the housing. A fingerprint module electrically connected to the motor is provided on the housing. The motor drives a linkage component for moving the lock cylinder assembly. The movement of the lock cylinder assembly is used to fix or move the latch. The fingerprint module is also electrically connected to a switch for blocking or allowing the movement of the linkage component. The mounting base is provided with a movable cavity for the movement of the linkage component.
[0006] The lock cylinder assembly includes a lock cylinder seat and a lock ball. The lock cylinder seat extends with a vertical shaft and is rotatably mounted on a mounting base via the vertical shaft. The lock ball is disposed between the outer shell and the lock cylinder seat. The side wall of the lock cylinder seat has a first recess for the lock ball to slide into. The outer shell has a through hole for the lock ball to pass through. The latch includes a first latch and a second latch. The first latch is hinged to the outer shell, and the second latch is hinged to the first latch. The first latch also has a locking groove for locking with the lock ball, and the second latch also has a locking platform for locking with the second lock body.
[0007] The motor drives the linkage to rotate via a rotating shaft. The rotating shaft has a cross-shaped cross section. The linkage is sleeved on the outside of the rotating shaft and is adapted to the rotating shaft. The linkage has a cam structure, and a drive rod extends from the protruding end of the linkage. The switch is used to block or allow the drive rod to move. The drive rod drives the lock cylinder seat to rotate.
[0008] The lock cylinder assembly also includes a disc spring, and the mounting base has an irregular hole. One end of the disc spring is connected to the vertical shaft and the other end is connected to the irregular hole.
[0009] The side wall of the lock cylinder seat is also provided with a second recess into which the lock ball slides, and the depth of the second recess is less than that of the first recess.
[0010] The side wall of the lock cylinder seat is also provided with a stop block for blocking the lock ball.
[0011] The mounting base is provided with a reset spring sheet bent towards the outer shell, the first buckle extends with a reset block, the outer shell has a window for the reset block to pass through at the position corresponding to the reset spring sheet, and the side wall of the lock cylinder seat is also provided with a pressure block for pressing down the reset spring sheet.
[0012] The lock cylinder assembly also includes a TSA key lock that is inserted into the lock cylinder seat.
[0013] The beneficial effects of this utility model are as follows: This utility model has a structure to prevent the motor from jamming. That is, by blocking the linkage driven by the motor through a switch, the motor only needs to rotate in one direction. When the fingerprint module is triggered by the correct fingerprint, the motor is powered on and drives the linkage to rotate. At the same time, the switch is opened to make way for the linkage. The rotation of the linkage will drive the lock cylinder assembly to move, thereby switching the latch to the active state and unlocking the bag lock. After rotating one revolution, the linkage will be blocked by the switch and stop rotating. There is no need for the motor to output reciprocating rotation for reset. The active cavity provides space for the linkage to rotate 360°. Usually, the motor is equipped with a reducer. The motor only rotates in one direction, which reduces the friction of the gears in the reducer, saves the power consumption of the motor, and extends the service life of the motor. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.
[0015] Figure 1 This is a schematic diagram of the structure of a fingerprint lock for preventing motor jamming according to this utility model;
[0016] Figure 2 This is a cross-sectional view of the present invention;
[0017] Figure 3 A schematic diagram of the first lock body without its outer shell;
[0018] Figure 4 for Figure 3 A structural diagram from another perspective;
[0019] Figure 5 This is a schematic diagram of the structure of the first lock body;
[0020] Figure 6 for Figure 5 A schematic diagram showing the structure without the mounting bracket;
[0021] Figure 7 This is a schematic diagram of the lock cylinder base.
[0022] In the diagram, 1-first lock body, 2-second lock body, 3-lock latch, 4-mounting base, 5-outer shell, 6-motor, 7-lock cylinder assembly, 8-fingerprint module, 9-linkage component, 10-switch, 11-moving cavity, 12-lock cylinder seat, 13-lock ball, 14-vertical shaft, 15-first recess, 16-through hole, 17-first latch, 18-second latch, 19-lock groove, 20-lock platform, 21-rotating shaft, 22-drive rod, 23-coil spring, 24-irregular hole, 25-second recess, 26-stop block, 27-reset spring, 28-reset block, 29-window, 30-pressure block, 31-TSA key lock. Detailed Implementation
[0023] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.
[0024] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.
[0025] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.
[0026] like Figures 1 to 7As shown in the figure, this is an embodiment of the present invention: a fingerprint lock for preventing motor jamming, comprising a first lock body 1 and a second lock body 2 installed on the bag. The first lock body 1 is locked to the second lock body 2 via a latch 3. The first lock body 1 includes a mounting base 4 and a housing 5 fastened to the mounting base 4. A motor 6 and a lock cylinder assembly 7 are provided between the mounting base 4 and the housing 5. The housing 5 is provided with a fingerprint module 8 electrically connected to the motor 6. The motor 6 drives a linkage component 9 for moving the lock cylinder assembly 7. The movement of the lock cylinder assembly 7 is used to fix or move the latch 3. The fingerprint module 8 is also electrically connected to a switch 10 for blocking or allowing the movement of the linkage component 9. The mounting base 4 is provided with a movable cavity 11 for the movement of the linkage component 9.
[0027] The beneficial effects of this design are as follows: This utility model has a structure to prevent the motor from jamming. Specifically, by blocking the linkage driven by the motor through a switch, the motor only needs to rotate in one direction. When the fingerprint module is triggered by the correct fingerprint, the motor is powered on and drives the linkage to rotate. At the same time, the switch opens to make way for the linkage. The rotation of the linkage will drive the lock cylinder assembly to move, thereby switching the latch to the active state and unlocking the bag lock. After rotating one revolution, the linkage will be blocked by the switch and stop rotating. There is no need for the motor to output reciprocating rotation for reset. The active cavity provides space for the linkage to rotate 360°. Usually, the motor is equipped with a reducer. The motor only rotates in one direction, which reduces the friction of the gears in the reducer, saves the power consumption of the motor, and extends the service life of the motor.
[0028] Further, the lock cylinder assembly 7 includes a lock cylinder seat 12 and a lock ball 13. The lock cylinder seat 12 extends with a vertical shaft 14 and is rotatably mounted on the mounting base 4 via the vertical shaft 14. The lock ball 13 is disposed between the outer shell 5 and the lock cylinder seat 12. The side wall of the lock cylinder seat 12 is provided with a first recess 15 for the lock ball 13 to slide into. The outer shell 5 is provided with a through hole 16 for the lock ball 13 to pass through. The latch 3 includes a first latch 17 and a second latch 18. The first latch 17 is hinged to the outer shell 5, and the second latch 18 is hinged to the first latch 17. The first latch 17 is also provided with a lock groove 19 that locks and engages with the lock ball 13, and the second latch 18 is also provided with a lock platform 20 that locks and engages with the second lock body 2.
[0029] The beneficial effects of this design are as follows: the lock cylinder seat rotates to change the position of the lock ball, switching between the fixed and movable states of the latch. When the lock cylinder seat is in the initial locked position, the lock ball is pushed out of the through hole by the outer wall of the lock cylinder seat and locks with the lock groove of the first latch. At the same time, the lock platform of the second latch locks with the second lock body. When the fingerprint module is triggered, the lock cylinder seat is driven to rotate by the linkage, the lock ball slides into the first recess of the lock cylinder seat and separates from the lock groove, and the first latch switches to the movable state. This type of lock cylinder assembly can stably and conveniently switch the locking state. This type of lock cylinder assembly will not cause the motor to jam even if the linkage is not blocked by the switch. The linkage does not need to reverse and reset. For example, the linkage only rotates 90° and then stops rotating, but it drives the lock cylinder seat to rotate and open the bag lock. When the fingerprint module is triggered again, the linkage continues to rotate one revolution in the same direction and drives the lock cylinder seat to rotate and open the bag lock.
[0030] In a further configuration, the motor 6 drives the linkage 9 to rotate via the rotating shaft 21. The rotating shaft 21 has a cross-shaped cross section. The linkage 9 is sleeved on the outside of the rotating shaft 21 and is adapted to the rotating shaft 21. The linkage 9 has a cam structure, and a drive rod 22 extends from the protruding end of the linkage 9. The switch 10 is used to block or allow the drive rod 22 to move. The drive rod 22 drives the lock cylinder seat 12 to rotate.
[0031] The beneficial effects of this design are as follows: the bearing area of the rotating shaft and the linkage is larger, which drives the linkage to rotate more stably. The drive rod will only contact the lock cylinder seat when the linkage rotates to a certain position and continue to rotate to drive the lock cylinder seat to rotate. The switch only needs to block or make way for the drive rod, reducing the force on the switch. A more compact switch can be selected to reduce costs. When the drive rod is blocked by the switch, it will not contact the lock cylinder seat. The internal structure is more compact and the locking is also very secure.
[0032] Furthermore, the lock cylinder assembly 7 also includes a coil spring 23, and the mounting base 4 has an irregular hole 24. One end of the coil spring 23 is connected to the vertical shaft 14 and the other end is connected to the irregular hole 24.
[0033] The beneficial effects of this setup are as follows: the disc spring is used to drive the lock cylinder seat to rotate and reset automatically, eliminating the need for a linkage component to drive the lock cylinder seat to reset. The linkage component only needs to rotate in the same direction to drive the lock cylinder seat to the unlocked position.
[0034] Furthermore, the side wall of the lock cylinder seat 12 is provided with a second recess 25 into which the lock ball 13 slides, and the depth of the second recess 25 is less than that of the first recess 15.
[0035] The beneficial effects of this design are as follows: when the lock cylinder seat is in the initial locked position, the lock ball slides into the second recess, increasing the contact area between the lock cylinder seat and the lock ball. The second recess can both prevent the lock ball from sliding randomly and maintain the locking fit between the lock ball and the lock groove.
[0036] Furthermore, the side wall of the lock cylinder seat 12 is also provided with a stop block 26 for blocking the lock ball 13.
[0037] The beneficial effects of this design are as follows: the stop can prevent the lock cylinder seat from rotating too far and causing the lock ball to disengage.
[0038] Further, the mounting base 4 is provided with a reset spring piece 27 bent towards the outer shell 5, the first buckle 17 extends with a reset block 28, the outer shell 5 is provided with a window 29 for the reset block 28 to pass through at the position corresponding to the reset spring piece 27, and the side wall of the lock cylinder base 12 is also provided with a pressure block 30 for pressing down the reset spring piece 27.
[0039] The beneficial effects of this design are as follows: when the lock groove and the lock ball are locked together, the reset block moves through the window to above the reset spring. During the unlocking rotation of the lock cylinder seat, the pressure block presses down on the bent part of the reset spring. When the lock cylinder seat continues to rotate until the lock ball separates from the lock groove, the pressure block moves from the bent part of the reset spring to the main body position. The height difference formed by the bent part causes the reset spring to spring back towards the pressure block, thus contacting the reset block and giving the reset block a force away from the window, causing the first latch to pop out and unlock quickly.
[0040] Furthermore, the lock cylinder assembly 7 also includes a TSA key lock 31 that is inserted into and cooperates with the lock cylinder seat 12.
[0041] The benefits of this setup are as follows: TSA key locks, also known as TSA customs locks, are used by U.S. Customs to conduct security checks on transit baggage and goods transported under customs supervision. To ensure the safety of goods during transportation, a universal TSA key is used, which is universally accepted by international customs. The lock can be opened with the TSA key. This lock can be unlocked with either fingerprint or key, offering multiple unlocking methods and greater convenience.
[0042] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A fingerprint lock for preventing motor jamming, comprising a first lock body (1) and a second lock body (2) installed on the bag, characterized in that: The first lock body (1) is locked to the second lock body (2) by a latch (3). The first lock body (1) includes a mounting base (4) and a housing (5) fastened to the mounting base (4). A motor (6) and a lock cylinder assembly (7) are provided between the mounting base (4) and the housing (5). A fingerprint module (8) electrically connected to the motor (6) is provided on the housing (5). The motor (6) drives a linkage component (9) for moving the lock cylinder assembly (7). The movement of the lock cylinder assembly (7) is used to fix or move the latch (3). The fingerprint module (8) is also electrically connected to a switch (10) for blocking or allowing the movement of the linkage component (9). The mounting base (4) is provided with a movable cavity (11) for the movement of the linkage component (9).
2. The fingerprint lock for preventing motor jamming according to claim 1, characterized in that: The lock cylinder assembly (7) includes a lock cylinder seat (12) and a lock ball (13). The lock cylinder seat (12) extends with a vertical shaft (14). The lock cylinder seat (12) is rotatably mounted on the mounting base (4) via the vertical shaft (14). The lock ball (13) is disposed between the outer shell (5) and the lock cylinder seat (12). The side wall of the lock cylinder seat (12) is provided with a first recess (15) for the lock ball (13) to slide into. The outer shell (5) is provided with a through hole (16) for the lock ball (13) to pass through. The latch (3) includes a first latch (17) and a second latch (18). The first latch (17) is hinged to the outer shell (5). The second latch (18) is hinged to the first latch (17). The first latch (17) is also provided with a lock groove (19) that locks and engages with the lock ball (13). The second latch (18) is also provided with a lock platform (20) that locks and engages with the second lock body (2).
3. A fingerprint lock for preventing motor jamming according to claim 2, characterized in that: The motor (6) drives the linkage (9) to rotate via the rotating shaft (21). The rotating shaft (21) has a cross-shaped cross section. The linkage (9) is sleeved on the outside of the rotating shaft (21) and is adapted to the rotating shaft (21). The linkage (9) is a cam structure, and a drive rod (22) extends from the protruding end of the linkage (9). The switch (10) is used to block or allow the drive rod (22) to move. The drive rod (22) drives the lock cylinder seat (12) to rotate.
4. A fingerprint lock for preventing motor jamming according to claim 2, characterized in that: The lock cylinder assembly (7) also includes a disc spring (23), and the mounting base (4) has an irregular hole (24). One end of the disc spring (23) is connected to the vertical shaft (14) and the other end is connected to the irregular hole (24).
5. A fingerprint lock for preventing motor jamming according to claim 2, characterized in that: The side wall of the lock cylinder seat (12) is also provided with a second recess (25) into which the lock ball (13) slides, and the depth of the second recess (25) is less than that of the first recess (15).
6. A fingerprint lock for preventing motor jamming according to claim 2, characterized in that: The side wall of the lock cylinder seat (12) is also provided with a stop (26) for blocking the lock ball (13).
7. A fingerprint lock for preventing motor jamming according to claim 2, characterized in that: The mounting base (4) is provided with a reset spring (27) bent towards the outer shell (5), the first buckle (17) extends with a reset block (28), the outer shell (5) is provided with a window (29) for the reset block (28) to pass through at the position corresponding to the reset spring (27), and the side wall of the lock cylinder base (12) is also provided with a pressure block (30) for pressing down the reset spring (27).
8. A fingerprint lock for preventing motor jamming according to claim 2, characterized in that: The lock cylinder assembly (7) also includes a TSA key lock (31) that is inserted into the lock cylinder seat (12).