CN108533075B - Locking mechanism, application of locking mechanism and locking control method used by locking mechanism - Google Patents

Locking mechanism, application of locking mechanism and locking control method used by locking mechanism Download PDF

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Publication number
CN108533075B
CN108533075B CN201710128967.1A CN201710128967A CN108533075B CN 108533075 B CN108533075 B CN 108533075B CN 201710128967 A CN201710128967 A CN 201710128967A CN 108533075 B CN108533075 B CN 108533075B
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locking
piece
lock
unlocking
switch
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CN108533075A (en
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李博
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Individual
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Individual
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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0012Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices

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  • Lock And Its Accessories (AREA)

Abstract

The invention discloses a locking mechanism and an application of the locking mechanism and a locking control method used by the locking mechanism. And the whole locking mechanism is controlled by the same switch piece, so that the control process is more compact and effective. From mechanical structure and automatic control method, effectively avoid the mistake locking operation of rotating member when the operation, the locking reliability is high, and it is simple and convenient to use, can encapsulate whole rotatory locking mechanism and fix in the car lock casing, uses on the transmission machinery of bicycle, electric motor car, motorcycle even light-weight car.

Description

Locking mechanism, application of locking mechanism and locking control method used by locking mechanism
Technical Field
The invention belongs to a mechanical locking mechanism of a rotating component, and particularly relates to a locking mechanism, application of the locking mechanism and a locking control method used by the locking mechanism.
Background
At present, a mechanical locking structure is mostly adopted for locking the outside of wheels of bicycles, electric vehicles, motorcycles and the like. Currently, various bicycle locks on the market comprise manual key locks or coded locks and the like, and with the rising of public bicycle leases, a public bicycle lock controlled by electric power appears, which also adopts an external locking structure and locks wheels by driving corresponding locks through an automatically controlled motor.
The external locking structure is simple, a large number of external locking products are required to be arranged, portability is poor, cost is high, external locking reliability is low, the external locking products are easy to damage, the safety performance has a large hidden danger, the special bicycle leasing point has large dependence on the field, particularly the existing shared bicycle is shared, the mode aims at sharing and leasing public bicycle resources at any time and any place, the public bicycle basically cannot adopt a fixed-point leasing mode, and the bicycle must be locked and unlocked by adopting a bicycle-mounted lockset.
Disclosure of Invention
The invention solves the technical problems that: in order to overcome the defects of the prior locking devices such as bicycles, electric vehicles, motorcycles and the like, a locking mechanism, application of the locking mechanism and a locking control method used by the locking mechanism are provided.
The invention is realized by adopting the following technical scheme:
the locking mechanism comprises a rotary output piece, a first locking piece, a connecting rod mechanism, a second locking piece and a switch piece; the rotary output piece is connected with the rotary piece to realize rotary power transmission, and a plurality of locking grooves are formed in the rotary circumference of the rotary output piece; the first locking piece is arranged in a swinging way through the connecting rod mechanism, the first locking piece is provided with a locking block which can be embedded into the locking groove, the second locking piece is elastically hinged and is mutually crossed and abutted with the first locking piece, and the locking block on the first locking piece is embedded into the locking groove; the switch piece is hinged and arranged and connected with the locking control system, and the switch piece is provided with a first unlocking structure and a second unlocking structure which are used for sequentially poking the second locking piece and the first locking piece.
Further, the link mechanism comprises a first link and a second link which form a double-swing-rod mechanism with the first locking piece, and the first link and the second link are respectively and elastically hinged at two hinge points and are simultaneously hinged with the two hinge points on the first locking piece.
Further, the first unlocking structure and the second unlocking structure comprise unlocking blocks or unlocking edges which are respectively arranged on the switch piece, the second locking piece and the connecting rod mechanism connected with the first locking piece, the unlocking blocks are arranged in a protruding mode, and the unlocking edges are in contact with the unlocking blocks.
Further, the first locking piece and the second locking piece are abutted through a locking angle and a locking bayonet which are mutually embedded.
Further, the contact edges at two sides of the locking piece and the contact surfaces at two sides of the locking groove are in wedge surface contact, and one side of the abutting position of the second locking piece is provided with a continuous holding edge in sliding contact with the first locking piece.
Further, the locking control system comprises a motor for controlling the swinging of the switch piece.
Further, the motor is arranged separately from the switch element, the output end of the motor is connected with a control block which performs rotary motion, and one point on the rotary circumference of the control block is connected with the non-hinge point position of the switch element through a control steel wire.
The invention also discloses application of the locking mechanism, a rotary output piece in the locking mechanism is coaxially and fixedly connected with a rotary transmission piece connected with a wheel, and the first locking piece, the connecting rod mechanism, the second locking piece and the switch piece are arranged on the same mounting seat.
Further, the rotary transmission member is a wheel hub of a bicycle, an electric vehicle or a motorcycle.
Further, the locking mechanism is packaged in the hub shell, the rotary output piece is an annular member and is fixedly fastened and inlaid with the inner wall or the inner end surface of the hub, and the locking groove is arranged on the inner wall or the outer circular surface of the rotary output piece; the mounting seat is fixedly locked with the axle, and mounting columns for hinging the connecting rod mechanism, the second locking piece and the switch piece, a positioning structure for mounting the motor and a limiting structure for limiting the control steel wire are respectively arranged on the mounting seat.
Further, the motor is connected with the signal receiving module, and automatic control of the motor is realized by adopting wired signal transmission or wireless signal transmission.
Further, the locking control system of the locking mechanism further comprises a rotation speed sensor for monitoring the rotation output piece or the wheel, and the rotation speed sensor is in signal connection with the motor through the communication module.
The invention also discloses a locking control method used by the application of the locking mechanism,
under the locking state, the locking piece of the first locking piece is completely embedded into the locking groove of the rotary output piece, and meanwhile, the second locking piece is abutted with the first locking piece, so that the reliable locking of the wheel is realized;
when the lock is unlocked, the motor rotates to control the switch piece to swing, a first unlocking structure on the switch piece firstly pushes the second lock piece to release the locking constraint of the second lock piece on the first lock piece, then the second unlocking structure on the switch piece pushes a connecting rod mechanism connected with the first lock piece again to push out a locking piece of the first lock piece from the locking groove, and unlocking is completed;
the locking mechanism is in an unlocking state, the locking piece of the first locking piece is completely separated from the locking groove of the rotary output piece, and meanwhile, the second locking piece and the first locking piece are kept constrained through the locking control system;
when the motor is locked, the motor is reversed, the switch piece is controlled to swing back, the switch piece swings back under the action of the torsion spring of the switch piece when the constraint of the connecting rod mechanism connected with the first lock piece is released, the lock piece is embedded into the lock groove of the rotary output piece, and finally the second lock piece is abutted with the first lock piece again, so that locking is completed.
In the unlocking process of the locking control method, a delay time is set between the second locking piece and the connecting rod mechanism for pushing the first locking piece to connect, and the time of the delay time exceeds the time that the locking angle between the first locking piece and the second locking piece is completely separated from the locking bayonet.
Furthermore, a protection rotating speed is set in the locking control method, when the rotating speed of the wheel is lower than the protection rotating speed, the motor can control the locking mechanism to unlock or lock, when the rotating speed of the wheel is higher than the protection rotating speed, the motor is cut off to receive a control signal, the locking mechanism is in a failure state, or the control signal is kept, and when the vehicle speed is lower than the protection rotating speed, the control signal controls the motor again.
The invention has the following beneficial effects:
according to the invention, the two locking pieces lock the rotary output piece by adopting a stable triangular supporting structure, and the second locking piece effectively restrains the first locking piece in a locking state, so that the locking reliability of a product is realized.
The invention adopts the same switch piece to control the whole locking mechanism, and the control process is more compact and effective.
According to the invention, the wedge surface is adopted between the locking piece and the locking groove of the first locking piece, meanwhile, the retaining edge is arranged on the second locking piece, so that the damage of high-speed misoperation locking operation to the structure of the product and the potential safety hazard of sudden stop are avoided from the mechanical mechanism, meanwhile, the safe rotating speed of locking control is set on an automatic control method, and the misoperation of the product is effectively avoided from the control method.
The invention can fix the whole locking mechanism in the lock shell, is easy to combine with the rotary connecting piece, can cover the transmission machinery of bicycles, electric vehicles, motorcycles and even light-weight automobiles, and has wide application range.
The invention has simple structure, can be formed by stamping, and has low cost.
The invention can connect the motor automatic control of the locking mechanism with the wireless network, realize the external automatic control of locking and unlocking, and is beneficial to popularization in the public transportation leasing industry.
The invention can also be integrated with the power generation device of the bicycle, the electric vehicle or the motorcycle in the hub, integrated with a wireless communication module such as a GPS or Bluetooth module and the like, integrated with an internal transmission and the like in various flexible integrated assembly modes.
The invention is further described below with reference to the drawings and detailed description.
Drawings
Fig. 1 is an assembly schematic of a locking mechanism in an embodiment.
Fig. 2 is a schematic diagram of a positional relationship among a first lock, a link mechanism, and a second lock in the embodiment.
Fig. 3 is a schematic structural view of a first lock in the embodiment.
Fig. 4 is a schematic structural diagram of a second lock in the embodiment.
Fig. 5 is a schematic diagram of a switch structure in an embodiment.
Fig. 6 is a schematic view of a mounting seat structure in an embodiment.
Fig. 7 is a schematic diagram of a control block structure in the embodiment.
Fig. 8 is a schematic diagram of a rotary output member in an embodiment.
Fig. 9 is a schematic diagram showing a locking state of the lock mechanism in the embodiment.
Fig. 10 is a schematic diagram of an unlocked state of the locking mechanism in the embodiment.
Fig. 11 is a schematic view showing a holding state of the lock mechanism in the embodiment at the time of high-speed rotation.
Fig. 12 is a schematic diagram of the locking mechanism applied to the hub in the embodiment.
Reference numerals in the drawings:
1-a rotary output piece, 101-a locking groove and 102-a locking groove contact surface;
2-first lock piece, 201-lock piece, 202-lock angle, 203-second unlocking edge, 205-lock piece contact edge, 211-first link torsion spring, 212-second link torsion spring, 23-first link, 231-first link hinge point, 24-second link, 241-second link hinge point;
3-second locking piece, 301-locking bayonet, 302-first unlocking piece, 304-holding edge, 305-second locking piece hinge hole, 31-second locking piece torsion spring;
4-a switch piece, 401-a first unlocking edge, 402-a second unlocking block, 404-a switch piece hinge hole, 405-a first control steel wire connecting hole;
5-mounting seats, 501-axle mounting holes, 5021-first connecting rod mounting columns, 5022-second connecting rod mounting columns and 503-second lock mounting columns;
6-motor, 61-control block, 611-motor shaft mounting hole, 612-second control wire connecting hole, 62-control wire;
8-bicycle axles;
9-flower drums.
Detailed Description
Examples
Referring to fig. 1 and 12, a bicycle lock applied to a bicycle hub is shown as a preferred embodiment of the present invention, and the lock mechanism of the present invention is used to lock and unlock the bicycle hub 9, so as to implement the bicycle lock function.
As shown in fig. 1, the locking mechanism specifically includes a rotary output member 1, a first locking member 2, a link mechanism, a second locking member 3, a switch member 4, a mounting seat 5, a motor 6, and the like.
The rotary output member 1 serves as a locking object between a rotary motion member and a locking mechanism, is coaxially and fixedly connected with the rotary motion member to be locked, the rotary motion member in the embodiment is a hub 9 of a bicycle, the hub is a rotary connecting member of spokes of a bicycle wheel and a bicycle axle, rotary power of the bicycle is transmitted to the hub 9, and the rotary power is transmitted to the wheel through the hub 9 to realize rotation of the wheel.
Referring to fig. 1 and 8, the rotary output member 1 adopts an annular rotary structure, the circumference of which is fixedly embedded with the inner wall of the hub 9, and can be assembled on the inner wall of the hub 9 by adopting a circumferential positioning structure such as spline connection and the like to rotate together with the hub 9. The rotary output piece 1 is provided with a plurality of locking grooves 101, the locking grooves 101 are distributed on the rotary circumference of the rotary output piece 1, the rotary output piece comprises an outer circumference and an inner circumference which can be arranged on the rotary output piece with an annular structure, and the locking grooves 101 are used for being matched with a stable locking structure formed by the first locking piece 2 and the second locking piece 3 to lock the rotary output piece 1 together with the flower drum.
Referring to fig. 2, 3 and 4 in combination, the first lock member 2 and the second lock member 3 are two swing link members, and each has an elastic swing function of a rebound action. The first locking piece 2 swings through a connecting rod mechanism, the connecting rod mechanism comprises a first connecting rod 23 and a second connecting rod 24, the first connecting rod 23 and the second connecting rod 24 are respectively and elastically hinged, and simultaneously are freely hinged with two hinge points on the first locking piece 2 to form a double-swing-rod mechanism, namely the first connecting rod 23 and the second connecting rod 24 swing in the same direction to drive the first locking piece 2 to swing; the second locking piece 3 is directly and elastically hinged at the hinge point, the elastic hinge means that a torsion spring or a tension spring is arranged at the hinge point of the first locking piece or the second locking piece, the two locking pieces have elastic resilience force through the elasticity of the spring, and the free hinge means that the two hinged parts can swing freely, and the elastic resilience force does not exist.
As shown in fig. 3, the first locking member 2 is provided with a locking piece 201 embedded in the locking groove 101, meanwhile, the second locking member 3 is in cross butt joint with the first locking member 2, that is, the first locking member 2 and the second locking member 3 are provided with a cross butt joint point, when the locking piece of the first locking member 2 is embedded in the locking groove, the second locking member 3 is fixedly butt jointed with the first locking member 2 under the action of elastic resilience force of the second locking member, the two locking members form a reliable triangle structure, and the locking piece on the first locking member 2 and the second locking member 3 are reliably embedded in the locking groove 101 through triangular support, so that reliable locking of the rotary output member 1 is realized.
The first locking piece 2 and the second locking piece 3 are effectively abutted through mutually embedded structures, the locking angle 202 is arranged at the abutting position of the first locking piece 2, the locking bayonet 301 is arranged at the abutting position of the second locking piece 3, the locking angle 202 and the locking bayonet 301 are reliably embedded and fixed when the two locking pieces are abutted, and the angles and the opening directions of the locking angle and the locking bayonet are ensured to be smoothly separated when the first locking piece and the second locking piece reversely swing. The position relation of the locking angle and the locking bayonet can be exchanged between the two locking pieces.
Unlocking of the first lock 2 and the second lock 3 is achieved by means of a switch 4. Referring to fig. 2 and 5, the switch member 4 is also a swing rod member, one end of the swing rod member is hinged, a first unlocking structure and a second unlocking structure for sequentially poking the second lock member 3 and the first lock member 2 are arranged at the position of a non-hinge point, the second lock member 3 is firstly poked reversely to release the position constraint of the second lock member on the first lock member, then a connecting rod mechanism connected with the first lock member 2 is poked, and the locking block 201 on the first lock member 2 is separated from the locking groove 101 on the rotary output member 1 to complete unlocking.
Specifically, in this embodiment, the first locking member 2, the first connecting rod 23, the second connecting rod 24, the second locking member 3 and the switch member 4 are plate-shaped rod members, the first locking member 2 and the second locking member 3 are in abutting locking in the same plane, meanwhile, the first connecting rod 23 and the second connecting rod 24 are arranged in the same plane, and the switch member 4 is arranged parallel to the planes of the two locking members and the two connecting rods. The switch element 4 is respectively provided with a first unlocking edge 401 for poking the second lock element 3 in the unlocking direction and a second unlocking block 402 for poking the first lock element 2, the second lock element 3 is correspondingly provided with a first unlocking block 302 in contact with the first unlocking edge 401, the second unlocking edge 203 corresponding to the second unlocking block 402 is positioned on one side of the first connecting rod 23, and the first connecting rod 23 is poked to swing, so that the first lock element 2 can swing finally. In practical application, the positional relationship of unblock piece and unblock limit can change the setting between second latch fitting, switch spare and first connecting rod to the unblock structure also can set up on second connecting rod 24, and the surface plane setting of plate is all protruding to two lockpieces, and the unblock limit that corresponds promotes the unblock piece or the unblock piece promotes the unblock limit and realizes the swing of latch fitting.
After the first locking member 2 and the second locking member 3 are unlocked, the switch member 4 can maintain the unlocked state of the two locking members under the drive of the locking control system.
As shown in fig. 3 and 11, in this embodiment, the key contact edges 205 on both sides of the key 201 of the first lock 2 and the key contact surfaces 102 on both sides of the key 101 of the rotary output 1 are arranged to be in wedge surface contact, so that the contact positions of the key and the key can be processed into inclined planes or inclined sides, or the installation angles between the key and the key can be made to be wedge surface contact, and under the condition that the second lock 3 is not constrained, no matter in which direction the rotary output 1 rotates, the key contact surfaces 102 push the key 201 together with the first lock 2 out of the key through the wedge surface matching, and after the second lock 3 constrains the first lock 2 through the triangular support, the key can be reliably limited in the key, and the rotary output realizes positive and negative locking. Accordingly, during unlocking, for example when the locking piece 201 of the first locking piece 2 is not fully inserted into the locking groove 101, the second locking piece 3 is provided with a continuous holding edge 304 on one side of the locking bayonet 301, and the locking angle 202 of the first locking piece 2 is always in sliding contact with the continuous holding edge 304 on the second locking piece 3 during the limit position of the locking piece from just entering the locking groove to fully entering the locking groove. The purpose of the above arrangement is to ensure that the bicycle wheel of the present embodiment is erroneously operated at a high speed (e.g. during riding), and in the process of rotating the wheel at a high speed, the rotational output member 1 is driven to rotate at a high speed, at this time, the locking mechanism is controlled to perform the locking operation, after the locking piece of the first locking member 2 partially enters the locking groove 101 of the rotational output member 1, the locking piece is repeatedly pushed out together with the first locking member by the rotating locking groove, at this time, the locking angle 202 of the first locking member 2 slides reciprocally on the continuous holding edge 304 of the second locking member 3, the second locking member 3 does not form an effective constraint on the first locking member 2, at this time, the continuous click sound (the locking groove repeatedly pushes out the locking piece) is issued by the locking mechanism to remind the rider that the erroneous locking operation occurs, and the rotational output member, i.e. the wheel, is decelerated by resistance. Such setting can not cause locking mechanism or flower-drum inner structure to damage because of high-speed locking, effectively avoids riding the in-process because of the unexpected accident appears in the mistake lock.
The switch element 4 in this embodiment may be coaxially hinged to the second link 24, where the switch element 4 is connected to a locking control system, and the locking control system may be manually controlled, i.e. by a pull wire system on a bicycle, or may be electrically controlled, and the switch element 4 is driven to swing by the motor 6.
The motor 6 can be directly in butt joint with the swinging shaft of the switch element 4, and the switch element is driven to swing reciprocally through forward and backward rotation of the motor, or as shown in the embodiment, the output end of the motor 6 is connected with a control block 61, as shown in fig. 7, a non-circular motor shaft mounting hole 611 is arranged on the control block 61, and is connected with the output shaft of the motor 6, so as to drive the control block 61 to perform rotary motion, a second control steel wire connecting hole 612 is arranged on the rotary circumference of the control block 61, and is fixedly connected with one end of the control steel wire 62, and a first control steel wire connecting hole 405 is arranged at the non-hinge point of the switch element 4 and is fixedly connected with the other end of the control steel wire 62. The control block 61 rotates for a certain angle, the control wire 61 drives the switch element 4 to swing for a certain angle, and the forward and reverse rotation of the motor is controlled, so that the swing direction of the switch element 4 can be controlled.
The control wire 62 should be sufficiently rigid to pull and push the switch element 4 into oscillation.
The motor 6 can be provided with a signal transmission module, realizes automatic control of the motor through wired signals or wireless signals, can also be set into a mobile phone APP control mode, realizes signal connection with the motor through a mobile communication module or a Bluetooth module, and is suitable for automatic renting of network public bicycles. Regarding the motor control technology that is commonly used to control the motor through wired signals or wireless signals, a person skilled in the art can select and design according to actual requirements, and the embodiment is not described herein.
In this embodiment, mechanical anti-misoperation structures are arranged on the locking groove 101 of the rotary output member 1, the locking piece 201 of the first locking member 2 and the second locking member 3, and on the basis of adopting electric control locking operation, automatic anti-misoperation arrangement is adopted in this embodiment.
Specifically, the locking control system of the embodiment further comprises a rotation speed sensor for detecting the rotation speed of the wheel or the hub, and the rotation speed sensor is connected with the motor through signals. Specifically, the rotation speed sensor can adopt a hall sensor to realize rotation speed measurement, a magnetic steel is fixedly arranged on the rotation circumference of the rotary output piece 1 or a rotary piece connected with the rotary output piece, the hall sensor is fixedly arranged towards the magnetic steel through a sensor mounting seat, the rotary output piece 1 or the rotary piece connected with the rotary output piece rotates for one circle, the hall sensor receives a signal, and rotates for one circle, so that the rotation speed at the moment is calculated, meanwhile, a protection rotation speed is set in the system, when the rotation speed detected by the hall sensor exceeds the protection rotation speed, a channel of the motor connected with an external signal is disconnected, the motor does not execute any operation, or a control signal is kept, an operation command is executed when the speed is lower than the protection rotation speed, and when the rotation speed detected by the hall sensor is lower than the protection rotation speed, the motor can perform corresponding locking action according to the external signal. Therefore, misoperation can be effectively prevented from two aspects of electronics and machinery, and the reliability and the safety of the locking structure are improved.
The rotating speed sensor can also be used as a speed monitoring module of the bicycle, and the riding speed is received and displayed in real time through the mobile display module.
As shown in fig. 1 and 12, in this embodiment, the rotary output member 1 is fixedly connected with the inner wall of the hub 9 of the bicycle wheel, the first locking member 2, the second locking member 3, the switch member 4 and the motor 6 are all disposed on the same mounting seat 5, and the mounting seat 5 is fixedly connected with the bicycle axle 8 corresponding to the hub, so that the whole locking mechanism is encapsulated in the hub shell of the bicycle.
As shown in fig. 6, the mounting seat 5 may be a stamped plate, an axle mounting hole 501 circumferentially assembled with the wheel axle 8 is provided in the middle of the mounting seat 5, two protrusions are provided on the inner side of the axle mounting hole 501 and cooperate with two grooves provided on the bicycle axle 8, and the axial positioning between the mounting seat 5 and the wheel axle 8 can be achieved by using a retainer ring or other axial positioning element to fix the mounting seat 5 and the bicycle axle 8. The periphery of the mounting seat 5 is respectively provided with a first connecting rod mounting column 5021 for mounting the first connecting rod 23, a second connecting rod mounting column 5022 for mounting the second connecting rod 24, a second locking piece mounting column 503 for mounting the second locking piece 3 and other positioning structures for positioning and mounting the motor 6 and the rotating speed sensor, and the positioning structures comprise a motor mounting seat, a rotating speed sensor mounting seat or a control steel wire limiting seat.
Referring to fig. 2 and 3, one end of the first link 23 is provided with a hinge hole, and is mounted on the first link mounting post 5021 of the mounting base 5 through a sleeve and a first link torsion spring, and likewise, one end of the second link 24 is provided with a hinge hole, and is mounted on the second link mounting post 5022 of the mounting base 5 through a sleeve and a second link torsion spring, and the other ends of the first link 23 and the second link 24 are respectively provided with a first link hinge point 231 and a second link hinge point 241, so as to realize free hinge with two hinge points of the first lock 2.
Referring to fig. 2 and 4, the second locking member 3 is provided with a second locking member hinge hole 305, and is rotatably assembled on the second locking member mounting post 503 through the sleeve, and the second locking member torsion spring 31 is mounted between the second locking member 3 and the sleeve, so that the elastic hinge of the second locking member 3 is realized, and the rebound direction of the second locking member torsion spring 31 should ensure that the second locking member 3 can form an abutting joint with the first locking member through the rebound force of the second locking member torsion spring 31 in the locking state.
Referring to fig. 2 and 5, a switch member hinge hole 404 is formed in the switch member 4, the switch member 4 is coaxially hinged to the second link 24 through the switch member hinge hole 404, and is rotatably assembled on the second link mounting post 5022 of the mounting base 5 through a sleeve, and a first control steel wire connecting hole 405 is formed below the switch member 4 and fixedly hooked with the control steel wire.
The following describes the operation of the lock according to the present embodiment in detail with reference to fig. 1 and 9 to 11.
As shown in fig. 1 and 9, in the locked state of the bicycle lock, at this time, the bicycle is stopped, the rotational speed of the wheel is zero, the rotary output member 1 does not rotate in both the forward and reverse directions, the first lock member 2 inserts the lock piece 201 into the lock groove 101 of the rotary output member 1 under the resilience force of the first link torsion spring 211 of the first link 23 and the second link torsion spring 212 of the second link 24, and simultaneously the second lock member 3 abuts against the first lock member 2 under the resilience force of the second lock member torsion spring 31, and the locking angle 202 and the locking bayonet 301 at the abutting position are fixedly engaged with each other, so that a stable triangular support structure is formed between the first lock member 2 and the second lock member 3, the rotary output member 1 and the wheel hub connected with the rotary output member are locked, the second lock member 3 restrains the first lock member 2, and prevents the lock piece 201 of the first lock member 2 from falling out of the lock groove 101.
As shown in fig. 9 and 10, when the switch member 4 is unlocked, the switch member 4 is driven by the locking control system (the motor and the control steel wire 62 in the embodiment) to swing clockwise, the first unlocking edge 401 on the switch member 4 is firstly contacted with the first unlocking block 302 on the second lock member 3, and as the switch member 4 continues to swing, the first unlocking edge 401 pushes the first unlocking block 302, so that the second lock member 3 swings anticlockwise against self resilience force; after swinging to a certain angle, the locking bayonet 301 and the locking angle 202 which are abutted and embedded between the second locking piece 3 and the first locking piece 2 are separated, at this time, the second unlocking piece 402 arranged above the switch piece 4 is in contact with the second unlocking edge 203 above the first connecting rod 23, and along with the continued swinging of the switch piece, the second unlocking piece 402 pushes the second unlocking edge 203 to swing clockwise against the self resilience force of the first connecting rod 23, and the locking piece 201 of the first locking piece 2 is separated from the locking groove 101 through the action of the connecting rod mechanism, so that unlocking is realized. After the locking piece 201 of the first locking piece 2 is completely removed from the locking groove 101, the switch piece can be kept in position by the locking control system for the first locking piece 2 and the second locking piece 3.
When the unlocking state is released and the locking mechanism is locked again, the switch member 4 swings back anticlockwise under the drive of the locking control system, the restraint on the first link 23 and the second lock member 3 is gradually released, the first lock member 2 is embedded into the locking groove 101 on the rotary output member 1 again under the self resilience action of the first link 23 and the second link 24, after the lock piece 201 is embedded into the locking groove 101 again, the second lock member 3 returns under the resilience action of the second lock member torsion spring 31 again, and is abutted against the first lock member 2 again, so that the locking is completed, as shown in fig. 9.
As shown in fig. 11, if the bicycle wheel is in a high-speed rotation state (misoperation locking during riding), when the locking piece 201 of the first locking piece 2 just starts to enter the locking groove 101 of the rotary output piece 1, the locking groove contact surfaces on two sides of the locking groove 101 are in wedge surface matching with the locking piece contact edges 205 of the locking piece 201, meanwhile, the locking angle 202 of the first locking piece 2 is in contact with the holding edges 304 of the second locking piece 3, and at the moment, during the high-speed rotation of the rotary output piece, the second locking piece 3 is free from establishing effective restraint on the first locking piece 2, and the wedge surface matching between the locking groove 101 and the locking piece 201 can push the locking piece 201 and the first locking piece 2 back and forth out of the locking groove (the first connecting rod torsion spring and the second connecting rod torsion spring provide reciprocating force), and meanwhile, the locking angle 202 of the first locking piece 2 slides back and forth with the holding edges 304 of the second locking piece 3, so that the bicycle cannot be reliably locked during riding. After the wheel stops rotating, the rotation output member 1 stops rotating, and at this time, the locking piece 201 on the first locking member 2 can be completely embedded into one of the locking grooves 101, and at this time, the locking bayonet 301 on the second locking member 3 is embedded into the locking angle 202 on the first locking member 2, as shown in fig. 10, so that reliable locking is completed.
When the locking and unlocking operations are realized by automatically controlling the locking mechanism of the motor, the embodiment can adopt the following control method:
in the locking state, the locking piece of the first locking piece is completely embedded into the locking groove of the rotary output piece, and meanwhile, the second locking piece is abutted with the first locking piece, so that the reliable locking of the wheel is realized;
when the unlocking is performed, the motor rotates to control the switch piece to swing, a first unlocking structure on the switch piece firstly pushes the second locking piece to release the locking constraint of the second locking piece on the first locking piece, then the second unlocking structure on the switch piece pushes the first connecting rod of the connecting rod mechanism again to push the locking piece of the first locking piece out of the locking groove, and unlocking is completed;
in the unlocking process, a delay time needs to be set between the pushing of the second locking piece and the pushing of the first connecting rod by the switch piece, that is, the pushing of the first unlocking piece 302 by the first unlocking piece 401 and the pushing of the second unlocking piece 203 by the first unlocking piece 402 in fig. 9 and 10 are not simultaneous actions, and after the first unlocking piece 401 pushes the first unlocking piece 302 to enable the locking angle and the locking bayonet between the first locking piece and the second locking piece to be completely separated, the second unlocking piece 402 is set to push the second unlocking piece 203, so that interference locking between the first locking piece and the second locking piece in the unlocking process is avoided.
In the unlocking state, the locking piece of the first locking piece is completely separated from the locking groove of the rotary output piece, and the locking control system keeps fixed constraint on the second locking piece and the first locking piece;
when the locking is performed, the motor is reversed, the switch piece is controlled to swing back, the switch piece releases the constraint of the first connecting rod of the connecting rod mechanism, simultaneously releases the unlocking constraint of the second lock piece, at the moment, the first lock piece swings back under the elastic resilience force of the connecting rod mechanism, the locking piece is embedded into the locking groove of the rotary output piece, and finally the second lock piece is abutted with the first lock piece again, so that the locking is completed.
In the control flow, a protection rotating speed is set, when the bicycle is lower than the protection rotating speed, the motor can control the locking mechanism to unlock or lock, and when the bicycle is higher than the protection rotating speed, the motor is cut off to receive a control signal, and the locking mechanism is in a failure state. The protection of the false locking operation from two aspects of mechanical mechanism and automatic control is realized.

Claims (14)

1. Locking mechanism, its characterized in that: the device comprises a rotary output piece, a first locking piece, a connecting rod mechanism, a second locking piece and a switch piece;
the rotary output piece is connected with the rotary motion piece to realize rotary power transmission, and a plurality of locking grooves are formed in the rotary circumference of the rotary output piece;
the first locking piece is arranged in a swinging way through the connecting rod mechanism, the first locking piece is provided with a locking block which can be embedded into the locking groove, the second locking piece is elastically hinged and is mutually crossed and abutted with the first locking piece, and the locking block on the first locking piece is embedded into the locking groove;
the switch piece is hinged and connected with the locking control system, and a first unlocking structure and a second unlocking structure which sequentially toggle the second locking piece and the first locking piece are arranged on the switch piece; the rotary motion piece is a wheel hub of a bicycle, an electric vehicle or a motorcycle.
2. The locking mechanism of claim 1, wherein: the connecting rod mechanism comprises a first connecting rod and a second connecting rod which form a double-swing-rod mechanism with the first locking piece, and the first connecting rod and the second connecting rod are respectively and elastically hinged at two hinge points and are simultaneously hinged with the two hinge points on the first locking piece.
3. The locking mechanism of claim 2, wherein: the first unlocking structure and the second unlocking structure comprise unlocking blocks or unlocking edges which are respectively arranged on the switch piece, the second locking piece and the connecting rod mechanism connected with the first locking piece, the unlocking blocks are arranged in a protruding mode, and the unlocking edges are in contact with the unlocking blocks.
4. The locking mechanism of claim 1, wherein: the first locking piece and the second locking piece are abutted through a locking angle and a locking bayonet which are mutually embedded.
5. The locking mechanism of claim 1, wherein: the contact edges at two sides of the locking piece are in wedge surface contact with the contact surfaces at two sides of the locking groove, and one side of the abutting position of the second locking piece is provided with a continuous holding edge in sliding contact with the first locking piece.
6. The locking mechanism of any one of claims 1-5, wherein: the locking control system comprises a motor for controlling the switch piece to swing.
7. The locking mechanism of claim 6, wherein: the motor is arranged separately from the switch piece, the output end of the motor is connected with a control block which performs rotary motion, and one point on the rotary circumference of the control block is connected with the non-hinge point position of the switch piece through a control steel wire.
8. Use of a locking mechanism according to any one of claims 1-7, characterized in that: the rotary output piece is coaxially and fixedly connected with a rotary motion piece connected with the wheel, and the first locking piece, the connecting rod mechanism, the second locking piece and the switch piece are installed on the same installation seat.
9. The use of a locking mechanism according to claim 8, said locking mechanism being enclosed in a hub shell, said rotary output member being a ring-shaped member fixedly secured to an inner wall or end face of the hub, said locking groove being disposed on an inner or outer circumferential face of the rotary output member;
the mounting seat is fixedly locked with the axle, and mounting columns for hinging the connecting rod mechanism, the second locking piece and the switch piece, a positioning structure for mounting the motor and a limiting structure for limiting the control steel wire are respectively arranged on the mounting seat.
10. The application of the locking mechanism as claimed in claim 9, wherein the motor is connected with the signal receiving module, and automatic control of the motor is realized by adopting wired signal transmission or wireless signal transmission.
11. The use of a locking mechanism according to claim 10, wherein the locking control system of the locking mechanism further comprises a rotational speed sensor for monitoring the rotational output or the wheel, said rotational speed sensor being in signal connection with the motor via a communication module.
12. A lock control method employed in the application of the lock mechanism as claimed in claim 11, characterized in that:
in the locking state, the locking piece of the first locking piece is completely embedded into the locking groove of the rotary output piece, and meanwhile, the second locking piece is abutted with the first locking piece, so that the reliable locking of the wheel is realized;
when the lock is unlocked, the motor rotates to control the switch piece to swing, a first unlocking structure on the switch piece firstly pushes the second lock piece to release the locking constraint of the second lock piece on the first lock piece, then the second unlocking structure on the switch piece pushes a connecting rod mechanism connected with the first lock piece again to push out a locking piece of the first lock piece from the locking groove, and unlocking is completed;
in the unlocking state, the locking piece of the first locking piece is completely separated from the locking groove of the rotary output piece, and meanwhile, the second locking piece and the first locking piece are kept constrained through the locking control system;
when the motor is locked, the motor is reversed, the switch piece is controlled to swing back, the switch piece swings back under the action of the torsion spring of the switch piece when the constraint of the connecting rod mechanism connected with the first lock piece is released, the lock piece is embedded into the lock groove of the rotary output piece, and finally the second lock piece is abutted with the first lock piece again, so that locking is completed.
13. The lock control method according to claim 12, wherein the switch member sets a time delay from pushing the second lock member to pushing the link mechanism to which the first lock member is connected, when the lock is unlocked, the time delay exceeding a time when the lock angle between the first lock member and the second lock member and the lock bayonet are completely separated.
14. The lock-up control method according to claim 13, wherein a guard rotational speed is set, the motor is controlled to unlock or lock the lock mechanism when the wheel rotational speed is lower than the guard rotational speed, the motor is shut off to receive the control signal when the wheel rotational speed is higher than the guard rotational speed, the lock mechanism is in a disabled state, or the control signal is maintained, and the control signal is controlled to re-control the motor when the vehicle speed is lower than the guard rotational speed.
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CN111155839B (en) * 2018-11-08 2021-06-04 杭州海康威视数字技术股份有限公司 Safety knob mechanism
CN111148687B (en) * 2019-12-13 2021-05-18 苏州锂智车业科技有限公司 Locking mechanism for electric bicycle
TWI782485B (en) * 2021-04-15 2022-11-01 誼騰動力股份有限公司 Composite lock
CN114228878B (en) * 2021-12-21 2023-01-24 深圳欧米智能科技有限公司 Anti-false locking hub

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CN2853564Y (en) * 2005-11-27 2007-01-03 魏强 Hidden remote controlled electric lock on bicycle
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US5388777A (en) * 1992-01-22 1995-02-14 Shimano Inc. Spinning reel with improved control structure of stopper mechanism
CN2118031U (en) * 1992-03-28 1992-10-07 张静德 Full sealing lock for motorcycle
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CN206942381U (en) * 2017-03-06 2018-01-30 李博 The flower-drum that a kind of lockable mechanism and the lockable mechanism are applicable

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