Intelligent lock
By using U-shaped groove locking rod locking tongue and reducer motor drive assembly in the lock body, combined with multiple waterproof design, the problems of lock body sliding teeth and blocking are solved, and the reliability and durability of the lock body are ensured in harsh environments. .
Patent Information
- Application Number
- CN202421132136.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-22
AI Technical Summary
During use, existing lock bodies are prone to failure of switch due to sliding teeth or blockage, and lack waterproofing functions, making it difficult to work normally in harsh climates.
A smart lock is designed, using a U-shaped groove lock lever locking tongue and a reducer motor drive assembly, which converts the rotational movement into a linear motion of the locking tongue through the gear pair, and an elastic member is provided on the top of the motor to prevent blockage. At the same time, multiple waterproof designs are adopted, including waterproof gaskets, sealing and sealing glue filling to ensure the waterproof performance of the lock body.
The precise limit of the lock tongue and prevent blockage, extend the service life of the motor, and ensure that the lock body works reliably in the outdoor environment through multiple waterproof designs.
Smart Images
Figure CN222457091U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lock bodies, and in particular to an intelligent lock. Background Art
[0002] With the popularity of shared electric motorcycles, various riding accessories such as helmets have also appeared and been continuously developed and improved. The helmet is locked with the shared electric motorcycle through an electric control lock body. At present, the common lock body mainly uses a motor plus a gear set to form a switch mechanism. The lock body is large in size and it is easy for the teeth to slip, causing the switch lock to fail. Or because of the limitation of the critical position of the switch, the motor driving the lock tongue is blocked, resulting in excessive current or even burning the motor. In addition, the lock bodies currently on the market often do not have a waterproof function, which makes them easy to fail and damage in outdoor environments due to harsh climate environments.
[0003] Therefore, a new smart lock is proposed to solve the above problems. Utility Model Content
[0004] The utility model provides an intelligent lock, which solves the above problems by improving the existing lock body.
[0005] In order to achieve the above object, the technical solution adopted by the utility model is: a smart lock, comprising:
[0006] case;
[0007] A lock tongue assembly, the lock tongue assembly comprising a lock tongue with a U-shaped groove, a first gear is arranged in the U-shaped groove, and the lock tongue is movably arranged in the housing;
[0008] The motor drive assembly includes a reduction motor, the output end of the reduction motor is provided with a second gear meshing with the first gear, the reduction motor converts the rotational motion into reciprocating horizontal linear motion of the lock tongue through a gear pair, and an elastic component is provided on the top of the reduction motor.
[0009] Preferably, the shell comprises an upper shell and a lower shell, the upper shell is provided with a through hole, a waterproof gasket is arranged at the through hole, and bolts pass through the waterproof gasket and the lower shell to fix.
[0010] Preferably, the elastic member is a telescopic spring, one end of the spring is fixed to the upper shell, and the other end of the spring abuts against the top of the reduction motor, changing the commonly used fixed installation of the motor to one that can slide up and down within a certain range of travel. When the lock tongue moves to the end of the switch lock, the motor will be lifted up because the plastic thickness at both ends of the lock tongue is higher than the lowest position of the gear part, thereby causing the motor to produce sliding teeth on the sloped sliding surfaces at both ends to avoid stalling.
[0011] Preferably, the gear teeth at both ends of the first gear have a height smaller than that of the middle gear teeth, and are connected to the two side walls via arc-shaped transition surfaces.
[0012] Preferably, a first groove, a second groove and a third groove are arranged in the lower shell body, the first groove cooperates with the reduction motor to accommodate the reduction motor, the second groove is arranged perpendicular to the first groove to accommodate a lock tongue of a lock rod with a U-shaped groove, and the lock tongue extends from the wall of the lower shell body, and the third groove is arranged on the adjacent side of the second groove to accommodate a circuit board.
[0013] Preferably, a magnet is provided at the end of the lock tongue of the lock rod with a U-shaped groove, which corresponds to the linear Hall device provided on the circuit board. The linear Hall device can sense the magnet and perform positioning monitoring on the lock tongue at any position in the entire switch stroke. On the one hand, it can be used to troubleshoot problems arising in various scenarios during mass production and use of the product. On the other hand, the start and stop time of the control motor can be optimized by real-time monitoring of the lock tongue position, thereby realizing power-off control before the limit sliding teeth are generated between the lock tongue and the housing, which can further reduce the switch lock noise and is also more energy-efficient.
[0014] Preferably, a slide groove is provided on the outer peripheral wall of the lower shell, and a slope design is adopted in the slide groove to engage with a positioning column for installing the target product.
[0015] Preferably, the outer peripheral wall of the lower shell is also provided with a finger groove for inserting a finger to facilitate removal of the lock body from the target product on which it is installed.
[0016] Preferably, a wire tail card is provided on the lower shell body on the opposite side of the locking rod, which is used for the wires to pass through and be electrically connected to the circuit board, and to achieve sealed penetration.
[0017] Beneficial effects:
[0018] The utility model adopts the above technical solution. The smart lock simplifies the gear parts. The overall compactness is simple and stable. It is easy to disassemble and assemble, can identify any position of the lock tongue, and can judge the switch state of the lock body. The lock tongue gear area is designed in a U shape, which can form a precise limit of the switch lock position. A spring is added between the motor and the shell as a design to prevent the motor from stalling. The gear at the end of the lock tongue is appropriately lowered in height, and the position near the two ends is changed from the straight edge combination of the standard gear to an arc transition. This can reduce the wear between the motor gear and the lock tongue gear when the motor slides and increase the service life of the product. The waterproof pad at the installation screw, the waterproof groove at the joint of the upper and lower shells, and the slot where the tail card is combined with the shell, the waterproof lubricant of the lock tongue, and the sealing glue of the main board, etc., achieve good waterproof performance of the entire lock body. Therefore, the smart lock can be effectively applied to shared electric motorcycles and scenes such as scenic spots, construction sites, and mines to lock supporting safety items such as helmets. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the implementation mode of the utility model and the beneficial effects of the utility model, the drawings required for use in the implementation mode or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some implementation modes of the utility model. For ordinary technicians in this field, other structures can be obtained based on the structures shown in these drawings without paying creative work.
[0020] Figure 1 It is an exploded view of the utility model.
[0021] Figure 2 It is a schematic diagram of the structure of the utility model after removing the upper shell.
[0022] Figure 3 It is a structural schematic diagram of a lock bar and lock tongue with a U-shaped groove of the utility model.
[0023] Figure 4 It is a structural schematic diagram of the upper shell of the utility model.
[0024] Figure 5 It is a structural schematic diagram of the lower shell of the utility model.
[0025] Explanation of the accompanying figures: upper shell -1, lower shell -2, reduction motor -3, lock rod with U-shaped groove lock tongue -4, circuit board -5, outlet tail card -6, first gear -7, second gear -8, bolt -9, waterproof gasket -10, fixing seat -11, arc transition surface -12, first groove -13, second groove -14, third groove -15, magnet -16, Hall switch -17, slide groove -18, hand buckle groove -19. DETAILED DESCRIPTION
[0026] Specific embodiments of the utility model:
[0027] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A smart lock of this embodiment includes an upper shell 1, a lower shell 2, a reduction motor 3, a lock rod and lock tongue with a U-shaped groove 4, a circuit board 5 and a wire plug-in tube 6. The upper shell and the lower shell are assembled into a shell with a confined space through a concave and convex interface, and the reduction motor 3, the lock rod and lock tongue with a U-shaped groove 4, the circuit board 5 and the wire plug-in tube 6 are arranged on the shell.
[0028] Specifically, the lock bar and lock tongue 4 with a U-shaped groove is a main component of the lock body and lock tongue assembly, a first gear 7 is arranged in the U-shaped groove, and the lock tongue is movably arranged in the housing;
[0029] The reduction motor 3 is a motor drive component of the lock body. The output end of the reduction motor is provided with a second gear 8 meshing with the first gear. The reduction motor converts the rotational motion into reciprocating horizontal linear motion of the lock tongue through the gear pair. An elastic component is provided on the top of the reduction motor.
[0030] The upper shell of the present embodiment is provided with a through hole, a waterproof gasket is arranged at the through hole, and the bolt 9 passes through the waterproof gasket 10 and is fixed to the lower shell.
[0031] The elastic member described in this embodiment is a telescopic spring, one end of which is fixed in the fixing seat 11 of the upper shell, and the other end of the spring is in contact with the top of the reduction motor, so that the commonly used fixed installation of the motor is changed to one that can slide up and down within a certain range of travel. When the lock tongue moves to the end of the switch lock, the motor will be lifted up because the plastic thickness at both ends of the lock tongue is higher than the lowest position of the gear part, thereby causing the motor to produce sliding teeth on the sloped sliding surfaces at both ends to avoid stalling.
[0032] In this embodiment, the gear teeth at both ends of the first gear have a height smaller than that of the middle gear teeth, and are connected to the two side walls via an arc-shaped transition surface 12 .
[0033] In the present embodiment, a first groove 13, a second groove 14, and a third groove 15 are arranged in the lower shell body. The first groove cooperates with the reduction motor to accommodate the reduction motor. The second groove is arranged perpendicular to the first groove to accommodate a lock tongue with a U-shaped groove, and the lock tongue extends from the wall of the lower shell body. The third groove is arranged on the adjacent side of the second groove to accommodate a circuit board.
[0034] A magnet 16 is provided at the end of the lock tongue of the lock rod with a U-shaped groove in this embodiment, which corresponds to the Hall switch 17 provided on the circuit board. The Hall switch can sense the magnet and can position and monitor the lock tongue at any position in the entire switch stroke. On the one hand, it can be used to troubleshoot problems caused by various scenarios during the mass production and use of the product. On the other hand, the start and stop time of the control motor can be optimized by real-time monitoring of the lock tongue position, so as to achieve power-off control before the limit sliding teeth are generated between the lock tongue and the housing, which can further reduce the switch lock noise and save energy.
[0035] In this embodiment, a slide groove 18 is provided on the outer peripheral wall of the lower shell. The slide groove adopts an inclined surface design to engage with the positioning column of the target product to be installed.
[0036] The outer peripheral wall of the lower shell described in this embodiment is also provided with a finger groove 19, which is used for inserting fingers to facilitate the removal of the lock body from the target product on which it is installed.
[0037] In this embodiment, a wire tail card 6 is provided on the lower shell body at the opposite side of the locking rod, which is used for wires to pass through and be electrically connected to the circuit board, and realizes sealed penetration.
[0038] Working method: The helmet is locked in the basket through the smart lock. The helmet is dormant, and the lock is powered by the body and is always working until it receives the unlocking signal from the controller. The lock plate drives the reduction motor to rotate, thereby driving the gear of the U-shaped lock tongue to slide into the lock through the gear of the reduction motor. After sliding to a certain position, the linear Hall corresponding to the lock tongue magnet on the mainboard can sense that it is about to reach the lock position. At this time, the motor is stopped to complete the unlocking action. At this time, the Bluetooth data after the helmet is taken out is received to synchronize the helmet wearing status and send the status of the helmet and the lock to the controller through the serial port or 485; after completing the ride, the helmet is put into the basket, and the magnet signal at the corresponding position on the helmet is recognized by the switch Hall in the lock, and then the lock action is automatically executed, and the lock result is synchronized to the controller (two Hall devices can be set on the mainboard, one is a linear Hall to sense the lock tongue position, and the other is a switch Hall to sense whether the helmet is in the basket). If the helmet is not fully put in place and the lock tongue is blocked in the middle position, it can be identified through the blocked current detection and the lock tongue is returned to the unlocking position.
[0039] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A smart lock, characterized in that: include: case; A lock tongue assembly, the lock tongue assembly comprising a lock tongue with a U-shaped groove, a first gear is arranged in the U-shaped groove, and the lock tongue is movably arranged in the housing; The electric drive assembly includes a reduction motor, the output end of the reduction motor is provided with a second gear meshing with the first gear, the reduction motor converts the rotational motion into reciprocating horizontal linear motion of the lock tongue through the gear pair, and an elastic component is provided on the top of the reduction motor.
2. A smart lock according to claim 1, characterized in that: The shell comprises an upper shell and a lower shell. The upper shell is provided with a through hole. A waterproof gasket is arranged at the through hole. Bolts pass through the waterproof gasket and are fixed to the lower shell.
3. The smart lock according to claim 1, characterized in that: The elastic component is a telescopic spring, one end of the spring is fixed to the upper shell, and the other end of the spring is in contact with the top of the reduction motor.
4. The smart lock according to claim 3, characterized in that: The gear teeth at both ends of the first gear have a height smaller than that of the middle gear teeth, and are connected to the two side walls via arc-shaped transition surfaces.
5. The smart lock according to claim 2, characterized in that: A first groove, a second groove and a third groove are arranged in the lower shell body. The first groove cooperates with the reduction motor to accommodate the reduction motor. The second groove is arranged perpendicular to the first groove to accommodate a lock tongue with a U-shaped groove, and the lock tongue extends from the wall of the lower shell body. The third groove is arranged on the adjacent side of the second groove to accommodate a circuit board.
6. The smart lock according to claim 5, characterized in that: A magnet is arranged at the end of the lock tongue of the lock rod with the U-shaped groove, corresponding to the Hall switch arranged on the circuit board, and the Hall switch can sense the magnet.
7. The smart lock according to claim 6, characterized in that: The outer peripheral wall of the lower shell is provided with a slide groove, and the inner wall of the slide groove is designed as an inclined surface.
8. The smart lock according to claim 7, characterized in that: The outer peripheral wall of the lower shell is also provided with a hand grip groove.
9. The smart lock according to claim 7, characterized in that: A wire outlet tail card is arranged on the lower shell body at the opposite side of the locking rod.