CN212154429U

CN212154429U - Expansion brake lock, expansion brake and vehicle

Info

Publication number: CN212154429U
Application number: CN202020319994.4U
Authority: CN
Inventors: 杨磊; 陆智源
Original assignee: Shanghai Junzheng Network Technology Co Ltd
Current assignee: Shanghai Junzheng Network Technology Co Ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-12-15
Anticipated expiration: 2030-03-16

Abstract

The utility model discloses an expansion brake lock, which comprises a lock body matched with an expansion brake to complete locking or unlocking; the lock body comprises a shell, and an actuating mechanism, a driving part, a linkage mechanism and a control device which are arranged in the shell; the actuating mechanism comprises an actuating component matched with the expansion brake, the actuating component is separated from the expansion brake to complete unlocking, and the actuating component is matched with the expansion brake to complete locking when the expansion brake is in a stop state or the speed of the expansion brake is lower than a preset safe speed; the driving part is connected with the actuating mechanism through a linkage mechanism; the control device is electrically connected with the driving part and controls the driving part to move; the linkage mechanism includes a first link coupled to the actuator, the first link configured to apply a force to the actuator when unlocking or locking. The utility model discloses an expansion brake lock can not make the vehicle locked because the mistake triggers the lock instruction of closing at the in-process of riding, avoids the user of service to receive the injury.

Description

Expansion brake lock, expansion brake and vehicle

Technical Field

The utility model relates to a tool to lock technical field especially relates to an expansion brake lock to and use this expansion brake lock's expansion brake and vehicle.

Background

Compared with the structure that the expansion brake device is separated from the anti-theft lock, the expansion brake lock basically keeps the original structure of the expansion brake device unaffected, has better concealment and strong anti-theft performance, and is easy to realize automatic electric control. The expansion brake lock, especially the electric control expansion brake lock, is widely applied to electric vehicles at present, but is not used in shared vehicles.

The working principle of the existing electric control expansion brake lock is as follows: the rotation of the motor is converted into the linear motion of the lock tongue through the linkage mechanism with rigid connection such as a worm gear, a reduction gear, a cam and the like, then the lock tongue pin is outside the hole when unlocking and is in the hole when locking the automobile by utilizing the pin hole principle, and therefore the expansion brake is locked or unlocked. The linkage mechanism between the motor and the lock tongue of the electric control expansion brake lock is a rigid part, the state from the unlocking state to the locking state is completed instantly, when the wheel runs at a high speed, if an abnormal instruction occurs in an electric control system or an electric control background, the lock tongue is instantly locked into a hole, and people on a vehicle running normally can not react to the lock tongue and are injured.

The horseshoe lock used in the existing shared vehicle is installed in the open place and is easy to be damaged by breaking or shearing a lock ring and the like and to be stolen. Furthermore, the horseshoe lock requires a user to manually close the lock, and a situation that the user forgets to close the lock may occur. The electronic control expansion brake lock can be hidden in a vehicle body, the anti-theft performance is better, and the opening and closing lock is automatically controlled and is relatively suitable for sharing vehicles.

Therefore, those skilled in the art are dedicated to develop an expanding brake lock, so that the vehicle cannot be locked due to the fact that a locking instruction is triggered by mistake in the riding process, and a user is prevented from being injured.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an expansion brake lock can just make the vehicle dead by the lock under the condition of guaranteeing vehicle user's safety, prevents the incident.

In order to achieve the purpose, the utility model provides an expansion brake lock, which comprises a lock body which is matched with an expansion brake to complete locking or unlocking; the lock body comprises a shell, and an actuating mechanism, a driving part, a linkage mechanism and a control device which are arranged in the shell; wherein the content of the first and second substances,

the actuating mechanism comprises an actuating component matched with the expansion brake; the actuator is configured to: the execution part is separated from the expansion brake to complete unlocking, and the execution part is matched with the expansion brake to complete locking when the expansion brake is in a stop state or the speed of the expansion brake is less than or equal to a preset safe speed;

the driving part is configured to drive the executing part to unlock or lock through the linkage mechanism;

the control device is electrically connected with the driving part and is used for controlling the driving part to move;

the linkage mechanism comprises a first connecting piece connected with the actuating mechanism, and the first connecting piece is configured to apply acting force to the actuating mechanism, wherein the acting force is moved towards the expansion brake direction when the actuating mechanism is unlocked and/or moved away from the expansion brake direction when the actuating mechanism is locked.

The utility model provides an above-mentioned expansion brake lock can solve and now be applied to the U-shaped lock of sharing bicycle and pounded the lock or cut the car problem of stealing of catch, relatively is applicable to sharing bicycle. In the vehicle process of traveling, the utility model provides an expansion brake lock just can carry out the lock operation of closing when the speed less than or equal to that stops or the expansion brake predetermines safe speed at the expansion brake, consequently can not lead to the vehicle to be locked when going higher than safe speed because of automatically controlled trouble or false triggering lock instruction, has guaranteed the personnel's of riding safety.

In some embodiments, optionally, the housing of the expansion brake lock body is separately arranged on the outer side surface of the expansion brake; therefore, the lock body and the expansion brake can be conveniently disassembled and assembled, and the fault processing time and cost are saved.

In some embodiments, optionally, the first connector is a first elastic element. Preferably, the first elastic member can prevent the lock body from being locked, and handle some abnormal locking and unlocking conditions.

In some embodiments, optionally, the linkage mechanism further comprises a crank connected to the driving member, one end of the first elastic element is connected to the crank, and the other end of the first elastic element is connected to the actuator.

In some embodiments, optionally, the control device comprises a sensor for detecting a motion state of the expansion brake, and the control device is configured to control the driving part to keep a stop state when the control device determines that the motion speed of the expansion brake is greater than the preset safety speed in response to a signal that the expansion brake is moving and is detected by the sensor.

In some embodiments, optionally, the sensor comprises a hall sensing element configured to detect the movement speed of the expansion brake by sensing a magnetic field generated by a magnet mounted on the expansion brake.

In some embodiments, optionally, the actuating member comprises a first protrusion configured to cooperate with a groove on the expansion brake to complete locking and to disengage from the groove to complete unlocking.

In some embodiments, optionally, the actuator further includes a second elastic element connected to the actuator and configured to apply an elastic force to the actuator to move the actuator in the expansion brake direction. The second elastic element can improve the accuracy of the switch lock to a certain extent, but the cost is increased, and the safety speed is influenced, so that in practical application, the second elastic element is omitted, the actuating mechanism is directly pivoted to the lock shell, and the elastic element is not adopted, so that the safety speed is reduced, and the cost is reduced.

In some embodiments, optionally, the lock body further comprises a first detection device coupled to the actuator and a second detection device coupled to the linkage;

the first detection device and the second detection device are configured to determine that the lock body is in a locking state or an unlocking state according to the state of the first detection device and/or the second detection device.

In some embodiments, optionally, in the unlocked state, the actuating member is separated from the first detection device and the linkage mechanism is in contact with the second detection device; in the locked state, the actuating member is in contact with the first detection device, and the linkage mechanism is separated from the second detection device.

In some embodiments, optionally, the actuating member further comprises a second protrusion configured to contact the first detection device in the locked state and to be separated from the first detection device in the unlocked state.

In some embodiments, optionally, the expansion brake lock further comprises a locking assembly cooperating with the actuating member, the locking assembly being configured such that in the locked state, the locking assembly locks the actuating member to prevent the actuating member from moving out of the switch lock position.

In some embodiments, optionally, the locking assembly comprises a snap and a third elastic element connected with the snap, and the actuating part comprises a matching part matched with the snap; the buckle is configured to abut against the matching part in the locking state so as to block the actuating component from moving in a direction away from the expansion brake; the third elastic element is configured to apply an elastic force to the buckle to move the buckle in a direction away from the expansion brake.

In some embodiments, optionally, the actuator further comprises a toggle piece pivotally connected to the actuator, the toggle piece comprising an end portion and a blocking portion protruding in a thickness direction of the toggle piece, one end of the first link being connected to the blocking portion, the blocking portion being configured to convert an acting force of the first link into an acting force exerted on the actuator during locking; the end is proximate to the catch, the end configured to actuate the catch to disengage the catch from the mating portion during unlocking of the locking bolt.

In some embodiments, optionally, the actuator further includes a fourth elastic element connected to the toggle piece, and the fourth elastic element is configured to apply an elastic force to the toggle piece to move the blocking portion toward the actuator.

In some embodiments, optionally, the drive component is a waterproof motor with an encoder.

In some embodiments, optionally, the control device is configured to control the drive component to be powered up in response to an unlock command and/or a lock close command.

In some embodiments, optionally, the control device is configured to control the driving part to be powered off after the unlocking command and/or the locking command is executed.

After the unlocking instruction is executed, the driving part is controlled to be powered off, namely, the power-off state of the driving part is kept in the unlocking state, so that the driving part can be prevented from being locked due to false triggering of the control device in the riding process of the vehicle, and potential safety hazards are caused; the driving part is controlled to be powered on after the locking command is received, and safety accidents caused by locking of the expansion brake lock due to misoperation in the riding process can be avoided by combining the set safety speed; the expansion brake lock is safer due to double fault reporting, and is more suitable for application of sharing the bicycle. After the lock closing instruction is executed, the driving part is controlled to be powered off, namely, the power-off state of the driving part is kept in the lock closing state, so that on one hand, the power consumption can be reduced, the power consumption is saved, on the other hand, the situation that the unlocking is carried out due to the false triggering of the control device in the lock closing state can be guaranteed, and a user mistakenly thinks that the vehicle cannot be normally used. And after receiving the unlocking instruction, the driving part is powered on immediately, so that the unlocking time can be shortened, and the user experience is improved.

The utility model also provides a vehicle, include as above the expansion brake lock.

The utility model provides a control method of a vehicle using the expansion brake lock, which comprises unlocking control and locking control;

the unlocking control includes the steps of:

receiving an unlocking instruction;

controlling the driving device to execute unlocking operation;

reporting whether the unlocking is successful or not according to the states of the first detection device and the second detection device;

the locking control comprises the following steps:

receiving a lock closing instruction;

controlling a driving device to execute locking operation when the vehicle is judged to be in a stop state or the speed of the vehicle is lower than a preset safe speed;

and when detecting that the second detection device coupled with the linkage mechanism is in a disconnected state and the driving device finishes the preset rotation stroke, sending a locking completion signal.

The utility model provides an expansion brake lock has following technological effect:

1. the expansion brake lock is used on the shared vehicle, so that the expansion brake lock can be better hidden in a vehicle body, and the phenomenon of malicious damage caused by the use of the horseshoe lock is avoided.

2. When the expansion brake lock of the utility model is locked, the control device controls the driving part so as to drive the executing part to lock, and the locking component automatically locks the executing part under the action of the elastic force; when unblanking, controlling means control driver part to drive and dial the piece and rotate, make buckle and executive component separation, simultaneously, dial the piece and give executive component with pulling force transmission, make executive component rotate. No matter the unlocking process or the locking process, manual operation is not needed, and the automation degree is improved.

3. The utility model provides a floodgate lock that rises uses two detection device to judge the state of switch lock, first detection device and actuating mechanism cooperation, second detection device and link gear cooperation, if actuating mechanism can not normally unblank because of unusual reason, then can not trigger first detection device, even drive assembly has carried out the instruction of unblanking, the information of the success of unblanking can not appear the wrong report yet. Similarly, if the second detection device cannot be normally triggered, the information of successful unlocking or locking cannot be misreported. Compared with the expansion brake lock which only uses one detection switch in the prior art, the utility model discloses can accurate monitoring switch lock state, the situation of misreporting can not appear to influence the normal use of expansion brake lock.

4. In the vehicle process of traveling, the utility model provides an expansion brake lock just can carry out the lock operation of closing when the speed less than or equal to that stops or the expansion brake predetermines safe speed at the expansion brake, consequently can not lead to the vehicle to be locked when going higher than safe speed because of automatically controlled trouble or false triggering lock instruction, has guaranteed the personnel's of riding safety.

5. The elastic element is used as the connecting piece in the linkage mechanism, compared with a rigid connecting piece, the unlocking instruction can be completed under the condition of abnormal unlocking, and when the abnormal condition is cleared, the unlocking action can be completed, so that the phenomenon that the lock cannot be unlocked due to being stuck is avoided, for example, the lock cannot be unlocked when the vehicle is parked on a ramp.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

Drawings

Fig. 1 is an exploded schematic view of the expansion brake lock and expansion brake assembly of the present invention;

fig. 2 is a schematic structural view of the expansion brake lock of the present invention in an unlocked state;

FIG. 3 is a schematic structural view of the expansion brake lock of the present invention in a locked state;

fig. 4 is an exploded view of the expansion brake lock of the present invention;

FIG. 5 is an exploded schematic view of the actuator;

fig. 6 is a schematic structural view of the locking tongue.

Wherein, 100-lock body, 111-second shell, 112-cover plate, 113-second bolt, 114-through hole, 115-rubber pad, 120-driving part, 130-control device, 140-actuating mechanism, 141-lock tongue, 142-first projection, 143-corner, 144-second elastic element, 145-arc groove, 146-second projection, 147-side, 148-first end, 151-toggle piece, 152-fourth elastic element, 153-toggle piece shaft, 155-blocking part, 156-end, 160-linkage mechanism, 161-crank, 162-first elastic element, 170-locking component, 171-buckle, 172-third elastic element, 181-first switch, 182-second switch, 200-first housing, 201-brake disc assembly, 202-brake disc, 203-first bolt, 204-groove, 205-strong magnet.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

Some exemplary embodiments of the invention have been described for illustrative purposes, and it is to be understood that the invention may be practiced otherwise than as specifically described.

As shown in fig. 1, an expansion brake lock provided in a preferred embodiment of the present invention includes a lock body 100 engaged with an expansion brake assembly. The lock body 100 of the expansion brake lock of the embodiment can be used with any expansion brake assembly in the prior art, and the existing structure and use principle of the expansion brake assembly are not affected. Preferably, the expansion brake assembly selected in this embodiment includes a brake disc assembly 201 and a brake disc 202 disposed on the first housing 200, and the brake disc 202 is installed in the first housing 200 and cooperates with the brake disc assembly 201 to realize a braking function. The lock body 100 is matched with the brake disc 202 to complete locking or unlocking. The lock body 100 is fixed in the first housing 200 by the first bolt 203.

As shown in fig. 4, the lock body 100 includes a second housing 111 and a cover plate 112, the cover plate 112 covers the second housing 111 to form a receiving space, and all main components of the lock body 100 are disposed in the receiving space, including an actuator 140, a driving component 120, and a control device 130. The cover plate 112 is fixed to the second housing 111 by a second bolt 113. The second shell 111 and the cover plate 112 enclose to form an outer shell with an IPX7 waterproof grade.

The actuator 140 is used to complete the unlocking or locking action, and in the present embodiment, as shown in fig. 2 and 3, the actuator 140 has a latch 141 as an actuator component. The structure of the latch tongue 141 is shown in fig. 6. The latch bolt 141 is provided with a first protrusion 142, the first protrusion 142 protrudes from the latch bolt 141 toward one side edge 147 of the brake disc 202 toward the brake disc 202, and forms a hook shape with the body of the latch bolt 141, that is, one side wall of the first protrusion 142 forms an obtuse angle with the side edge 147 of the latch bolt 141, and the other side wall of the first protrusion 142 forms an acute angle with the side edge 147 of the latch bolt 141. The first protrusion 142 can extend out of the second housing 111 through the through hole 114 formed in the second housing 111, and cooperate with the groove 204 formed in the brake disc 202, so as to complete the locking, and the expansion brake lock is in the locked state. A plurality of grooves 204 are uniformly arranged on the circumference of the brake disc 202. As shown in fig. 3, after the first protrusion 142 is separated from the groove 204, the expansion brake lock is in an unlocked state. Preferably, the latch tab 141 is rotatably coupled to the second housing 111 with the rotating shaft disposed near the first end 148 of the latch tab 141.

The driving member 120 is used to drive the actuator 140 to move so that the first protrusion 142 can be engaged with or disengaged from the groove 204 on the brake disc 202. The drive member 120 is preferably a waterproof motor with an encoder. As shown in fig. 4, the driving member 120 is installed in the second housing 111, and a rubber pad 115 is further disposed between the driving member 120 and the cover plate 122.

The driving member 120 is connected to the actuator 140 through a linkage 160, and the linkage 160 converts the rotation output by the driving member 120 into a translation of the actuator 140.

The control device 130 is electrically connected to the driving member 120 and is used for controlling the movement of the driving member 120, so as to drive the actuator 140 to move. The control device 130 is disposed in the second housing 111, and the control device 130 is a circuit board. The control device 130 can respond to the lock opening and closing command to control the driving part 120 to complete the unlocking or locking and report the unlocking state or the locking state. In some embodiments, the control device 130 integrates a communication function, and not only can communicate with a background server through remote communication to receive unlocking and locking instructions and report the vehicle state, thereby implementing remote management of the vehicle, but also can communicate with a client terminal through a short-range communication mode, such as bluetooth, ZigBee, and the like, to receive unlocking and locking instructions. In some embodiments, the control device 130 may be partially or completely disposed outside the lock body 100, and may communicate with a separate communication module, which may include a function of remote communication with a background server and a function of short-range communication such as bluetooth or ZigBee, to realize data interaction.

The linkage mechanism 160 is connected to the driving part 120 and the actuator 140, respectively. Specifically, the linkage 160 includes a linkage coupled to the actuator 140 to transmit the force of the driving member 120 to the actuator 140 to move the actuator 140 in a direction toward the brake disc 202 when the brake is unlocked or away from the brake disc 202 when the brake is locked. The connecting member may be any rod-like member or other shaped member known to those skilled in the art. Preferably, an elastic element is chosen here. Compared with a connecting rod type connecting piece which can complete an unlocking instruction under the condition of abnormal unlocking, the connecting rod type connecting piece can complete the unlocking instruction under the condition that the abnormal condition is cleared, the unlocking action can be completed, the locking bolt 141 cannot be locked and cannot be unlocked, for example, in a vehicle parked on a ramp, the locking bolt 141 of the vehicle is pressed by the brake disc 202 to a certain extent under the action of gravity, after the unlocking instruction is received, the driving part 120 operates to execute the unlocking action, although the locking bolt 141 and the brake disc 202 are not separated due to pressing, the unlocking instruction is not influenced to be executed completely by the vehicle, after the pressing on the locking bolt 141 is released, the locking bolt 141 and the brake disc 202 are separated under the action of the elastic element, and the normal unlocking state is recovered.

Preferably, as shown in fig. 4, the linkage 160 includes a crank 161 and a first elastic member 162. One end of the crank 161 is fixedly connected with the output end of the driving part 120 and is driven by the driving part 120 to rotate; the other end of the crank 161 is connected to one end of the first elastic member 162, and the actuator 140 is connected to the other end of the first elastic member 162. By providing the first elastic element 162, after the driving crank 161 is driven to rotate by the driving part 120, the first elastic element 162 applies an elastic force to the latch 141, and the movement of the latch 141 is driven by the elastic force. The first elastic member 162 is preferably a spring. Due to the buffering effect of the first elastic element 162, the locking tongue 141 does not move immediately, and the unlocking or locking movement is completed instantly, which is beneficial to avoiding safety accidents. For example, a hardware failure of the lock body 100 may occur, the motion state of the expansion brake assembly cannot be detected, or a lock closing command is executed during riding for other reasons, and the vehicle is still in a running state; when the crank 161 is driven by the driving part 120 to rotate, the first elastic element 161 has a buffering effect, so that the first protrusion 142 of the latch bolt 141 does not fall into the groove 204 of the brake disc 202 immediately, but the first protrusion 142 is matched with the groove 204 after a period of time, and if the groove 204 of the brake disc 202 cannot allow the latch bolt 141 to fall back to the place within the time range, the safe speed of the rotation of the brake disc 202 is measured according to the principle; according to the safe speed, the number and the arrangement mode of the grooves 204 are reasonably arranged, so that the first protruding parts 142 can be matched with the grooves 204 only when the speed of the brake disc 202 is lower than the safe speed, the vehicle is locked at the safe speed, the personal safety of a driver can be guaranteed, and accidents are avoided; when the speed of the brake disc 202 is higher than the safe speed, even if the driving member 120 completes the locking action and reaches the locking position due to the reason of misoperation, the first elastic element 162 is in a compressed state, but the first protrusion 142 cannot be matched with the groove 204 in time, the brake disc 202 rotates at a high speed, so that the groove 204 and the first protrusion 142 collide with each other, but the first protrusion 142 cannot fall into the groove 204, the vehicle running at the speed higher than the safe speed cannot be locked, and the safety accident is avoided. When the lock is below the safe speed, even if the first protrusion 142 falls into the groove 204, no safety accident is caused. It is preferable that the corner 143 of the first protrusion 142, which is first in contact with the groove 204 when the lock is closed, is rounded, and when the groove 204 collides with the first protrusion 142, the groove 204 can be more conveniently slid over the first protrusion 142 because the corner 143 is smoothly rounded.

In the embodiment, in order to further avoid the mistaken locking operation caused by the locking command triggered by the electric control fault or abnormality in the running state of the vehicle, a sensor for monitoring the motion state of the expansion brake assembly is further arranged in the embodiment. The sensor is connected to the control device 130, or the sensor is integrated into the control device 130. When the sensor detects that the expansion brake assembly is in a moving state, the control device 130 will determine whether the operating speed of the expansion brake is greater than the safe speed according to the detection information of the sensor. If the speed is higher than the safe speed, the control device 130 receives the lock-off command or the electric control fault occurs in the expansion brake lock, and the control device 130 does not control the movement of the driving part 120, but controls the driving part 120 to be kept in the stopped state. In some embodiments, an angular velocity sensor may be used to measure the rotational speed of the wheel and transmit it to the control device 130. In this embodiment, a hall sensor is preferably used to detect the rotation speed. The control device 130 includes a hall sensor (not shown), as shown in fig. 1, a strong magnet 205 is installed on the brake disc 202, if the vehicle is in a riding state, the hall sensor senses a corresponding signal, and the control device 130 accordingly determines whether the speed of the brake disc is greater than a safe speed.

As shown in fig. 4, the latch 141 is further provided with a second elastic element 144, one end of the second elastic element 144 is connected to the second housing 111, and the other end is connected to the latch 141. The second elastic member 144 exerts an elastic force on the latch 141, which urges the latch 141 to move in a direction protruding out of the second housing 111. Preferably, the second elastic element 144 is a torsion spring, and is sleeved on the rotation shaft of the locking tongue 141. The second elastic element 144 is provided to enable the locking tongue 141 to be positioned more accurately, but an installation groove needs to be formed on the locking tongue 141 for installing the second elastic element 144, for example, when a torsion spring is selected, a hooking groove needs to be formed.

As shown in fig. 3 and 4, after the locking tongue 141 is rotated to engage with the first protrusion 142 and the groove 204 of the brake disc 202, a locking assembly 170 may be further provided, and an engaging portion may be provided at a second end of the locking tongue 141 opposite to the first end 148 to engage with the locking assembly 170. As shown in fig. 4, the locking assembly 170 includes a catch 171 and a third elastic member 172. The third elastic element 172 is used for applying an elastic force to the latch 171 to urge the latch 171 to rotate toward the latch tongue 141. One end of the latch 171 is rotatably connected to the second housing 111, and the third elastic member 172 is preferably a torsion spring, which is fitted over a rotation shaft of the latch 171. As shown in fig. 6, the engagement portion provided at the second end of the locking tongue 141 is preferably an arc-shaped groove 145, the other end of the catch 171 is provided in a shape matching the arc-shaped groove 145, and after the first protrusion 142 is engaged with the groove 204 of the brake disc 202, the arc-shaped groove 145 corresponds to the other end of the catch 171, and the catch 171 abuts against the arc-shaped groove 145 under the elastic force of the third elastic element 172, thereby locking the locking tongue 141 at the locking position.

In order to overcome the elastic force of the locking assembly 170 for automatic unlocking, the actuator 140 is further provided with a toggle assembly, which includes a toggle member 151 as shown in fig. 5. The toggle member 151 has a substantially triangular shape, and a hole is provided near the first corner through which a toggle shaft 153 passes to rotatably connect the toggle member 151 with the latch bolt 141. The second corner and the third corner are respectively located at two sides of the first corner, the second corner is used for connecting the first elastic element 162, and specifically, the second corner is provided with a blocking portion 155 connected with one end of the first elastic element 162. The blocking portion 155 is formed by protruding along the thickness direction of the toggle member 151, and during the locking process, the first elastic element 162 exerts a pushing force on the blocking portion 155, so as to push the toggle member 151 to rotate relative to the latch bolt 141, when the toggle member 151 rotates to a certain angle, the blocking portion 155 contacts with the sidewall of the latch bolt 141, the toggle member 151 does not rotate, and the blocking portion 155 further exerts a pushing force on the latch bolt 141, so as to push the latch bolt 141 to rotate. The third corner is provided with a cylindrical end 156 for pulling the latch 171 to overcome the elastic force of the third elastic element 172. During unlocking, the first elastic element 162 exerts a pulling force on the blocking portion 155 of the toggle element 151, so that the toggle element 151 rotates relative to the lock tongue 141, the blocking portion 155 starts to move away from the lock tongue 141, and at this time, the end portion 156 starts to toggle the buckle 171 during rotation, so as to enable the buckle 171 to overcome the elastic force of the third elastic element 172 and disengage from the lock tongue 141.

Preferably, in order to effectively release the toggle action of the latch 171 when the toggle member 151 does not have an external force, a fourth elastic element 152 is further provided. The fourth elastic element 152 exerts an elastic force on the toggle member 151, which urges the toggle member 151 to be separated from the catch 171, and preferably, the fourth elastic element 152 is a torsion spring, which is sleeved on the toggle member shaft 153.

In order to accurately detect the unlocked state and the locked state of the lock body 100, the present embodiment is further provided with a detection device. As shown in fig. 2, the detection means includes a first switch 181 and a second switch 182. The second switch 182 is provided at an end position of a rotational stroke of the crank 161 at the time of unlocking, and is coupled with the crank 161; the first switch 181 is disposed near a first end of the latch bolt 141, and is coupled to the latch bolt 141; a second protrusion 146 is disposed on the first end of the latch bolt 141, and the second protrusion 146 protrudes from the latch bolt 141 in a direction away from the brake disc 202, so that the second protrusion 146 can contact or separate from the first switch 181. When the lock body 100 is in the normal unlocking state, the crank 161 is located at a position away from the lock tongue 141, at this time, the crank 161 is in contact with the second switch 182, the second switch 182 is in the on state, the lock tongue 141 is located at a position away from the brake disc 202, the second protrusion 146 is separated from the first switch 181, and the first switch 181 is in the off state. As shown in fig. 3, when the lock body 100 is in the normal locking state, the crank 161 is located near the latch tongue 141, the crank 161 is separated from the second switch 182, the second switch 182 is in the off state, the latch tongue 141 is located near the brake disc 202, the first protrusion 142 is engaged with the groove 204, the second protrusion 146 is in contact with the first switch 181, and the first switch 181 is in the on state. According to the states of the first switch 181 and the second switch 182, it can be accurately determined whether the lock body 100 is in the unlocked state or the locked state. The detection means is not limited to the first switch 181 and the second switch 182, and in some embodiments, the detection means may be a voltage dependent resistor, an optical coupler, or the like, and any means that can be triggered by the positions of the crank 161 and the latch 141 in the locked or unlocked state may be applied to this embodiment. In addition, even if the vehicle is in an abnormal locking and unlocking state, rough judgment can be performed according to a detection signal of the detection device, and the first elastic element 162 can restore the vehicle to the normal locking and unlocking state when the abnormality is eliminated.

In addition to the safety of the first resilient element 162 and the safety speed, the control device is provided with a mechanism for powering the driving member 120 on and off, which further ensures that the driving member 120 will not rotate in the unlocked state for system reasons.

The operation of the present embodiment is described in detail below.

1. Procedure for executing unlocking

And (3) normally unlocking an execution process: in the present embodiment, the driving part 120 drives the crank 161 and the first elastic element 162 to perform transmission, and the control device 130 immediately supplies power to the driving part 120 in response to the unlocking command, and rotates the driving part to drive the crank 161 to rotate, so as to increase the unlocking speed. The rotation direction is from right to left as shown in fig. 2, the blocking portion 155 of the toggle member 151 is pulled by the elastic force exerted by the first elastic element 162, the toggle member 151 rotates relative to the latch bolt 141, the end 156 of the toggle member 151 pushes the latch 171 along the side wall of the latch 171, the latch 171 is disengaged from the arc-shaped groove 145 of the latch bolt 141, and the latch bolt 141 is pulled to move away from the brake disc 202, so that the first protrusion 142 is disengaged from the groove 204 of the brake disc 202, and the unlocking is completed. Meanwhile, the second protrusion 146 of the latch bolt 141 is separated from the first switch 181 along with the rotation of the latch bolt 141, and the first switch 181 is turned off; during the rotation of the crank 161, the crank contacts the second switch 182, so that the second switch 182 is turned on. When the control device 130 receives the second switch 182 on signal, the driving part 120 stops or the lock-up stops at the return-to-zero position. At this time, the first switch 181 is turned off, the second switch 182 is turned on, the lock body 100 is successfully unlocked, and a signal indicating that the lock body is successfully unlocked is transmitted. After successful unlocking, the control device 130 powers off the driving member 120 and maintains the powered-off state to ensure that the driving member 120 does not rotate, especially the lock-closing rotation, due to internal system reasons in the unlocked state.

And (3) abnormal unlocking execution process: during the unlocking process, for example, the bolt 141 may not move into the lock body 100 due to partial pressure or other abnormal conditions of the bolt 141. Since the crank 161 and the toggle element 151 are connected and driven through the first elastic element 162, the driving member 120 can still normally move to the right position, the driving member 120 contacts the second switch 182, and when the control device 130 receives a signal of turning on the second switch 182, the driving member 120 stops or blocks rotation and stops at the return-to-zero position; at this time, the control device 130 de-energizes the driving part 120 and maintains the de-energized state, and although the first switch 181 is still in contact with the second protrusion 146 of the latch bolt 141 and is in the non-disengaged state, the first elastic element 162 has exerted a pulling force on the latch bolt 141 to urge the latch bolt 141 to move toward the inside of the lock body 100. When the external force or other abnormal conditions applied to the locking bolt 141 are removed, the locking bolt 141 still moves towards the inside of the lock body 100 under the pulling force of the first elastic element 162, so as to automatically unlock, and the first switch 181 is turned off, thereby completing the whole unlocking process. The situation mainly aims at the scene that the vehicle is parked on a slope or other abnormal loads occur, the brake disc 202 causes certain compression on the lock tongue 141, the lock tongue 141 cannot move in the unlocking process possibly, however, as long as external force is released, the lock body 100 can still automatically recover to a normal unlocking state, and the actual abnormal unlocking process is a step-by-step normal unlocking process.

2. Procedure for executing locking

And (3) normal locking execution process: when the brake disc 202 is in a stopped state and the control device 130 receives a lock-off command, power is supplied to the driving member and the driving member 120 is controlled to rotate, the crank 161 rotates from left to right as shown in fig. 3, and after the crank 161 rotates, the contact with the second switch 182 is released, and the second switch 182 is turned off. The rotation is stopped when the driving member 120 rotates by a predetermined angle. The control device 130 receives the turn-off signal of the second switch 182 and the electrical frequency signal of the driving member 120 stopping rotating, and then determines that the locking action is performed. When the locking action is performed, the control device 130 powers off the driving part 120 and maintains the power-off state, and at this time, the latch 141 has the following two states:

in the first state: in a normal locked state, the first protrusion 142 of the latch tongue 141 faces the groove 204 of the brake disc 202, and the latch tongue 141 rotates under the force of the second elastic element 144, so that the first protrusion 142 moves from the inside of the lock body 100 to the outside of the lock body 100 and falls into the groove 204 of the brake disc 202. Meanwhile, due to the rotation of the latch 141, the second protrusion 146 may contact the first switch 181, so that the first switch 181 is turned on, and at this time, the second switch 182 is turned off, thereby sending a state of successful vehicle locking. In the moving process of the lock tongue 141, the toggle member 151 rotates under the action of the fourth elastic element 152, and the end 156 releases the abutting of the buckle 171, so that the buckle 171 rotates under the action of the third elastic element 172 and abuts against the arc-shaped groove 145 at the second end of the lock tongue 141, thereby locking the lock tongue 141, preventing the lock tongue 141 from being opened due to external force, and realizing reliable locking.

In the second state: in an abnormal locking state, the first protruding part 142 of the latch 141 is not directly opposite to the groove 204 on the brake disc 202, the latch 141 enables the first protruding part 142 to abut against the outer side wall of the brake disc 202 under the action of the first elastic element 162 and the second elastic element 144, at this time, the second switch 182 is turned off, the vehicle locking is judged to be successful, the state is reported to the server, and the control device 130 cuts off the power of the driving part 120 to keep the power-off state; although the first switch 181 is still in the off state at this time, the first elastic element 162 is in the compressed state, and as long as the brake disc 202 rotates and reaches the position where the first protrusion 142 faces the groove 204, the latch 141 automatically drops the first protrusion 142 into the groove 204 due to the acting force of the second elastic element 144 and the first elastic element 162; meanwhile, the second protrusion 146 of the latch bolt 141 presses the first switch 181, so that the first switch 181 is turned on, thereby achieving successful physical locking. In the same manner as in the first state, the catch 171 locks the latch tongue 141. The actual abnormal unlocking process is a step-by-step normal locking process.

Additional safety protection: if a system fault is encountered, the lock body 100 receives an abnormal locking instruction, the hall sensing element detects the magnetic field state on the brake disc 202, if the vehicle is in the riding state, the hall sensing element senses a corresponding signal, the control device 130 determines that the vehicle is in the riding state according to the magnetic field state, and the working circuit of the driving part 120 cannot be powered to run, so that the potential safety hazard problem is avoided. If the hardware system also has a fault, the hall signal cannot be detected, or the hardware executes a lock closing command for other reasons, the expansion brake lock of the embodiment can still ensure safety. This is because, if the brake disc 202 has a corresponding angular velocity while riding, and it takes a while for the first protrusion 142 of the latch tongue 141 to fall into the groove 204 of the brake disc 202 due to the cushioning effect of the first elastic member 162, if the groove 204 fails to allow the first protrusion 142 to fall back into place within this particular time period, a safe velocity can be set according to this principle. When the vehicle is running at a speed lower than the safe speed, the first projection 142 will fall into the groove 204, thereby locking the vehicle; when the speed is higher than the safe speed, the first protrusion 142 may collide with the groove 204 of the brake disc 202, but may not fall back into the groove 204, so that the vehicle higher than the safe speed cannot be locked while traveling, thereby preventing a safety accident.

The utility model provides an expansion brake lock is applicable to various vehicles, like bicycle, electric bicycle etc. preferably, is applicable to in shared bicycle or the shared vehicle using motor. When the locking and unlocking detection device is used in a shared vehicle, the locking and unlocking state can be accurately detected, the management efficiency of the vehicle is improved, and the operation cost is reduced. Meanwhile, the expansion brake lock is hidden in the vehicle body, so that the expansion brake lock is not easy to be maliciously damaged; the expansion brake lock is internally provided with the locking assembly, so that the vehicle is ensured not to be unlocked easily by external force in a locked state; the safety locking process of the expansion brake lock can not enable the vehicle to be locked abnormally under the condition that the speed is higher than the safety speed, and the safety of riding personnel is guaranteed.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. An expansion brake lock is characterized by comprising a lock body which is matched with an expansion brake to complete locking or unlocking; the lock body comprises a shell, and an actuating mechanism, a driving part, a linkage mechanism and a control device which are arranged in the shell; wherein the content of the first and second substances,

2. The expansion brake lock of claim 1, wherein said first connecting member is a first resilient member.

3. The expansion brake lock of claim 2, wherein said linkage further comprises a crank, said crank being connected to said drive member, one end of said first resilient element being connected to said crank, the other end of said first resilient element being connected to said actuator.

4. The expansion brake lock according to claim 1, wherein said control means comprises a sensor for detecting the moving state of said expansion brake, and said control means is configured to control said driving member to maintain the stopped state when the moving speed of said expansion brake is judged to be greater than said preset safety speed in response to a signal that said expansion brake is moving detected by said sensor.

5. The expansion brake lock of claim 4, wherein said sensor comprises a Hall sensing element configured to detect the speed of movement of the expansion brake by sensing the magnetic field generated by a magnet mounted on the expansion brake.

6. The expansion brake lock of claim 1, wherein said actuator member comprises a first protrusion configured to engage a recess on said expansion brake to complete locking and disengage from said recess to complete unlocking.

7. The expansion brake lock of claim 6, wherein said actuator further comprises a second resilient element connected to said actuator member and configured to apply a resilient force to said actuator member to move said actuator member in said expansion brake direction.

8. The expansion brake lock of claim 1, wherein said lock body further comprises a first detection device and a second detection device, said first detection device being coupled to said actuator and said second detection device being coupled to said linkage;

9. The expansion brake lock of claim 8, wherein in said unlocked state, said actuator member is disengaged from said first sensing device and said linkage mechanism is in contact with said second sensing device; in the locked state, the actuating member is in contact with the first detection device, and the linkage mechanism is separated from the second detection device.

10. The expanding brake lock of claim 9, wherein said actuator member further comprises a second protrusion configured to contact said first sensing device in said locked state and to disengage said first sensing device in said unlocked state.

11. The expansion brake lock of claim 1, further comprising a locking assembly cooperating with said actuator, said locking assembly configured to lock said actuator in a locked state.

12. The expansion brake lock of claim 11, wherein said locking assembly comprises a snap and a third resilient element connected to said snap, and said actuator member comprises an engaging portion engaged with said snap; the buckle is configured to abut against the matching part in the locking state so as to block the actuating component from moving in a direction away from the expansion brake; the third elastic element is configured to apply an elastic force to the buckle to move the buckle in a direction away from the expansion brake.

13. The expansion brake lock of claim 12, wherein said actuator further comprises a toggle member pivotally connected to said actuator member, said toggle member including an end portion and a blocking portion protruding in a thickness direction of said toggle member, said first link member having one end connected to said blocking portion, said blocking portion being configured to translate an acting force of said first link member into an acting force exerted on said actuator member during a locking process; the end is proximate to the catch, the end configured to drive the catch to disengage the catch from the mating portion during an unlocking process.

14. The expanding brake lock of claim 13, wherein the actuator further comprises a fourth resilient element connected to the toggle member, the fourth resilient element being configured to apply a resilient force to the toggle member that moves the blocking portion in the direction of the actuator.

15. The expanding brake lock of claim 1, wherein the control means is configured to control the drive member to be powered up in response to an unlock command and/or a lock close command.

16. The expanding brake lock according to claim 1, wherein said control means is configured to control said drive member to be de-energized after executing an unlock command and/or a lock close command.

17. A vehicle comprising an expansion brake lock according to any of claims 1 to 16.