CN216508731U

CN216508731U - Bicycle brake lock

Info

Publication number: CN216508731U
Application number: CN202122458470.0U
Authority: CN
Inventors: 李雨宸; 陈丽; 李军
Original assignee: Xi'an Qilin Zhixun Electronic Technology Co ltd
Current assignee: Xi'an Qilin Zhixun Electronic Technology Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-05-13
Anticipated expiration: 2031-10-13

Abstract

A bicycle brake lock, comprising: the lock body is fixed in the brake shell and sleeved on the wheel shaft together with the brake, and the driving mechanism comprises a clutch assembly arranged on the axis of the wheel shaft. When the bicycle is locked, the driving system pushes the clutch component to be folded, the driving clutch plate rotating along with the hub drives the driven clutch plate to rotate, the brake cam is shifted to rotate, the brake shoe block acts to brake the bicycle and brake and lock the bicycle. The utility model has the same installation mode as the common brake, keeps the use characteristics of the common brake, does not influence the normal use of the bicycle brake, can be used on various bicycles, and is simple, convenient and easy to implement.

Description

Bicycle brake lock

Technical Field

The utility model relates to a bicycle lock, in particular to a bicycle brake lock.

Background

In recent years, intelligent bicycles such as shared bicycles have been rapidly developed, and it is sometimes necessary to limit the use of bicycles to a certain range in use in a specific small area such as a campus, a scenic spot, a park, and a town. The intelligent locks related to the existing intelligent bicycles mainly comprise an intelligent horseshoe lock, an intelligent hub lock and a brake lock, wherein the horseshoe lock is manually locked, so that the bicycles cannot be prevented from being ridden out of a specified area; although the intelligent hub lock and the brake lock can be automatically locked through the background, the bicycle is required to be in a stop state. If the bicycle is forcibly locked in a riding state, a safety problem may be caused because the bicycle wheel is suddenly locked. Therefore, once the bicycle is ridden out of the limited area, the bicycle is locked safely during riding without an effective method, the continuous riding behavior is prevented, the problem that the bicycle is ridden out of the specified use area during use is solved, the management of the bicycle has certain loopholes, and the bicycle is difficult to popularize and apply vigorously.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, an object of the present invention is to provide a bicycle brake lock, which can lock a bicycle and lock the bicycle by driving a clutch assembly to move a brake shoe through a driving mechanism during the bicycle riding. Because the locking process is realized through the brake, the braking process is similar to the brake braking process, and the locking device is safe and reliable, thereby solving the problem existing in the use of the intelligent bicycle in a specific area.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a bicycle brake lock, comprising: the bicycle brake comprises a shell, a brake shoe, a brake bowl and a cam, wherein the brake bowl is fixedly connected with a bicycle hub and synchronously rotates, the lock body is provided with a lock box, a control system, a transmission mechanism and a driving mechanism, the control system, the transmission mechanism and the driving mechanism are assembled in the lock box, the lock body is fixed in the bicycle brake shell and sleeved on a wheel shaft together with the bicycle brake, and the driving mechanism further comprises a clutch assembly arranged on the axis of the wheel shaft.

A further development of the utility model is that the clutch assembly comprises a driving clutch plate and a driven clutch plate, the driven clutch plate being provided with an undulating annular contour.

The utility model has the further improvement that the driving clutch plate is engaged with the driven clutch plate through a concave-convex staggered linkage structure, the driving clutch plate rotates to drive the driven clutch plate to rotate, and the driving clutch plate is concentrically and fixedly connected with the brake bowl.

The utility model has the further improvement that the lock box is provided with a positioning shaft, the axis of the positioning shaft is provided with a through hole, the excircle of the positioning shaft is provided with a tangent plane, the lock box is sleeved on the wheel shaft through the through hole, and the lock box is fixedly connected with the shell.

The utility model is further improved in that the clutch assembly is sleeved on the lock box positioning shaft through the central hole.

The utility model has the further improvement that the transmission mechanism comprises a motor, a worm, a first gear, a clutch gear set and a second gear, wherein the clutch gear set comprises a first clutch gear, a second clutch gear and a spring plate. The first gear is meshed with the worm and the clutch gear set respectively, the clutch gear set is meshed with the second gear, and the elastic sheet is buckled and pressed on the clutch gear set.

The utility model is further improved in that the driving mechanism comprises a gear sleeve, a threaded sleeve, a top sleeve, a clutch component, a limiting plate, a first spring and a second spring, the gear sleeve is engaged with the gear of the transmission mechanism, the threaded sleeve is arranged in the gear sleeve and is connected with the gear sleeve through threads, a shaft hole at the bottom end of the threaded sleeve is provided with a tangent plane which is matched with an excircle tangent plane of a lock box positioning shaft, the top end of the threaded sleeve is provided with a microswitch triggering protrusion, the inner cavity of the threaded sleeve is provided with the first spring, the spring is sleeved on the lock box positioning shaft, one end of the spring is propped against the bottom end of the inner cavity of the threaded sleeve, the other end of the spring is propped against the bottom end of the top sleeve, one end of the top sleeve provided with a flange plate is arranged in the threaded sleeve, the other end of the top sleeve extends out and is connected with a driven clutch plate, the center hole of the top sleeve is provided with a tangent plane which is matched with the excircle tangent plane of the lock box positioning shaft and can move along the positioning shaft to push the driven clutch plate to move back and forth, the spring two sleeves are arranged on the lock box positioning shaft, two ends of the spring two are respectively abutted against the driving clutch plate and the driven clutch plate, the limiting plate and the gear sleeve teeth are arranged in an overlapping mode and fixedly arranged on the lock box, and the gear sleeve is limited to move along the wheel axis direction.

The control system comprises a circuit box, a control circuit and a microswitch, wherein the control circuit and the microswitch are assembled in the circuit box, the circuit box is fixedly arranged in a lock box, the microswitch is triggered by a triggering protrusion action arranged at the top end of a threaded sleeve of the driving mechanism to realize signal feedback, and the control circuit is connected with a central control system of the bicycle through a cable.

The utility model is further improved in that the brake cam is a stepped cam with the size of the outline arranged, the outline of a large cam at the top end is larger, the outline of a small cam at the lower part is smaller, the outline of the large cam is tangent to the outline of the driven clutch plate, and the outline of the small cam is tangent to the contact surface of the brake shoe block.

Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts the technical scheme that the clutch component is arranged between the driving mechanism and the brake mechanism of the intelligent bicycle brake lock body, when the bicycle is locked, the clutch is closed, so that the bicycle brake mechanism is driven to act, the wheel is braked to be incapable of rotating, and the bicycle is locked. The present invention is also applicable to locking of a bicycle hub.

Furthermore, the utility model has the same installation mode as the common brake, can be used on various bicycles, and is simple and easy to operate.

Furthermore, the bicycle brake device completes the function of locking the bicycle by means of the brake mechanism of the bicycle brake, keeps the use characteristics of the common bicycle brake and does not influence the normal use of the bicycle brake.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view assembly of the present invention;

FIG. 3 is a schematic view of the lock body structure of the present invention;

FIG. 4 is a schematic diagram of the operation of the drive system of the present invention;

FIG. 5 is a schematic diagram of the circuit box structure of the present invention;

FIG. 6 is a schematic structural view of the assembly of the active clutch plate and the brake bowl of the present invention;

FIG. 7 is a schematic view of the cam configuration of the present invention;

FIG. 8 is a schematic external view of the present invention;

FIG. 9 is a schematic view of the structure of the present invention mounted to a bicycle frame.

In the drawing, 1 is a brake, 2 is a lock body, 11 is a housing, 12 is a brake shoe, 13 is a brake bowl, 14 is a cam, 21 is a lock box, 22 is a control system, 23 is a transmission mechanism, 24 is a driving mechanism, 141 is a large cam, 142 is a small cam, 211 is a positioning shaft, 221 is a circuit box, 222 is a control circuit, 223 is a microswitch, 231 is a motor, 232 is a worm, 233 is a first gear, 234 is a clutch gear set, 235 is a first clutch gear, 236 is a second clutch gear, 237 is a second gear, 238 is a spring plate, 240 is a microswitch triggering protrusion, 241 is a clutch assembly, 242 is a driven clutch plate, 243 is a driving clutch plate, 244 is a gear sleeve, 245 is a threaded sleeve, 246 is a top sleeve, 247 is a limiting plate, 248 is a first spring, and 249 is a second spring.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1, 2, 3, 4, and 6, the present invention includes: the bicycle brake comprises a brake 1 and a lock body 2, wherein the brake 1 comprises a shell 11, a brake shoe 12, a brake bowl 13 and a cam 14, the brake bowl 13 is fixedly connected with a bicycle hub and synchronously rotates, the lock body 2 is provided with a lock box 21, a control system 22 assembled in the lock box 21, a transmission mechanism 23 and a driving mechanism 24, and the lock body 2 is fixed in the shell 11 of the brake 1 and sleeved on a wheel shaft together with the brake 1. The lock box 21 is fixedly connected with the shell 11 and is provided with a positioning shaft 211, the lock body 2 and the lock box 21 are sleeved on a wheel shaft through a through hole of the positioning shaft 211, and the excircle of the positioning shaft 211 is provided with a tangent plane.

As shown in fig. 1, 2 and 3, the transmission mechanism 23 of the present invention includes a motor 231, a worm 232, a first gear 233, a clutch gear set 234 and a second gear 237, wherein the clutch gear set 234 includes a first clutch gear 235, a second clutch gear 236 and a spring 238. The first gear 233 is meshed with the worm 232 and the clutch gear set 234 respectively, the clutch gear set 234 is meshed with the second gear 237, the elastic sheet 238 is buckled on the clutch gear set 234, and the transmission system transmits the rotation of the motor 231 to the driving mechanism 24 through the worm 232 and the gear set.

As shown in fig. 1, 2, 3, 4, and 6, the driving mechanism 24 of the present invention includes an expansion gear sleeve 244, a threaded sleeve 245, a top sleeve 246, a clutch assembly 241, a limiting plate 247, a first spring 248 and a second spring 249, and is sleeved on the positioning shaft 211 of the lock box 21. The clutch assembly 241 includes a driven clutch plate 242 and a driving clutch plate 243, the driven clutch plate 242 and the driving clutch plate 243 are provided with center holes, the clutch assembly 241 is sleeved on the positioning shaft 211 of the lock box 21 through the center holes, and the driven clutch plate 242 of the clutch assembly 241 can slide back and forth along the positioning shaft 211. The driving clutch plate 243 is concentrically and fixedly connected with the brake bowl 13 of the brake 1 and can synchronously rotate along with the brake bowl 13 and the wheel hub, the driven clutch plate 242 is provided with a high-low annular outline, the driven clutch plate 242 is concentrically butted with the driving clutch plate 243, and the driving clutch plate rotates to drive the driven clutch plate to rotate through the engagement of a concave-convex staggered linkage structure. The gear sleeve 244 is engaged with a gear two 237 of the transmission mechanism 23, the threaded sleeve 245 is arranged in the gear sleeve 244 and is connected with the gear sleeve 244 through threads, the gear sleeve 244 can be screwed in and screwed out through threads, a shaft hole at the bottom end of the threaded sleeve 245 is provided with a tangential plane which is matched with an external tangential plane of the positioning shaft 211 of the lock box 21, so that when the gear sleeve 244 rotates, the threaded sleeve 245 cannot rotate along with the gear sleeve and moves back and forth along the axial direction of the positioning shaft 211, the top end of the threaded sleeve 245 is provided with a microswitch triggering protrusion 240, one end of the top sleeve 246, which is provided with a flange plate, is arranged in the threaded sleeve 245, the other end of the top sleeve is extended out and is connected with the driven clutch plate 242, a tangential plane is arranged at the central hole of the top sleeve 246 and is matched with the external tangential plane of the positioning shaft 211 of the lock box 21, and can move axially along the positioning shaft 211 to push the driven clutch plate 242 to move back and forth. The inner cavity of the threaded sleeve 245 is provided with a first spring 248, the first spring 248 is sleeved on the positioning shaft 211 of the lock box 21, one end of the first spring 248 abuts against the bottom end of the inner cavity of the threaded sleeve 245, the other end of the first spring 248 abuts against the bottom end of the top sleeve 246, and the expansion of the first spring 248 can drive the expansion of the top sleeve 246. The second spring 249 is sleeved on the positioning shaft 211 of the lock box 21, and two ends of the second spring 249 respectively abut against the driven clutch plate 242 and the driving clutch plate 243 to ensure that the driven clutch plate 242 and the driving clutch plate 243 are in a separated state when the driving system does not act. The limit piece 247 is overlapped with the teeth of the gear sleeve 244 and fixedly mounted on the lock case 21 to limit the movement of the gear sleeve 244 along the wheel axis direction.

As shown in fig. 1, 3 and 5, the control system 22 of the present invention includes a circuit box 221, and a control circuit 222 and a microswitch 223 mounted in the circuit box 221. The circuit box 221 is fixedly installed in the lock box 21, the micro switch 223 triggers the protrusion 240 to act through the micro switch arranged at the top end of the threaded sleeve 245 of the driving mechanism 24 to realize signal feedback, the contact of the micro switch 223 is released and disconnected, a lock signal is sent to the control circuit 222, the contact of the micro switch 223 is compressed and connected, an unlock signal is sent to the control circuit 222, and the control circuit 222 is connected with a central control system of the bicycle through a cable.

As shown in fig. 1 and 7, the brake 1 cam 14 of the present invention is a stepped cam with an arranged profile, the profile of the top large cam 141 is larger, the profile of the lower small cam 142 is smaller, the profile of the large cam 141 is tangent to the profile of the driven clutch plate 242, and the profile of the small cam 142 is tangent to the contact surface of the brake shoe 12.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the working principle and working process of the present invention are as follows: when the bicycle is ridden normally, the driving mechanism does not act, the spring II controls the separation of the driving clutch plate and the driven clutch plate, and the driven clutch plate is in a free state; when the vehicle needs to be locked, the brake lock receives a vehicle locking signal, the control system controls the transmission mechanism motor to rotate, the speed is reduced through the transmission mechanism gear set, the driving mechanism gear sleeve is driven to rotate, the gear sleeve is driven to rotate through the rotation of the threaded structure to push the threaded sleeve to unscrew, the top sleeve is driven to move outwards along the positioning shaft, the driven clutch plate and the driving clutch plate are pushed to fold, the vehicle locking state is achieved, meanwhile, the micro switch at the top end of the threaded sleeve is triggered to protrude and separate from the micro switch contact, the micro switch contact is released and disconnected, a vehicle locking signal is sent to the control circuit, and the control system controls the driving system to stop acting and keeps the vehicle locking state. At the moment, if the bicycle is in riding, the driving clutch plate fixedly mounted on the brake bowl rotates along with the wheel hub, after the driven clutch plate is folded with the driving clutch plate, the driving clutch plate drives the driven clutch plate to rotate together, after the driven clutch plate rotates, the annular profile with fluctuant height protrudes along the profile tangent plane of a large cam shifting the top end of the brake cam, so that the cam rotates, the profile of a small cam below is driven to shift the brake shoe to act, the bicycle is braked, and after the action is repeated for many times, the bicycle stops running and cannot ride, so that the action of braking and further locking the bicycle is achieved. The locking process is realized by driving the brake mechanism, so that the locking process is the same as the brake process, the problem of sudden stop of wheels is avoided, and the safety of a rider is ensured; when the bicycle is in a stop state, the brake lock receives a locking signal, the transmission mechanism drives the driving mechanism to act, the gear sleeve rotates through the threaded structure to push the threaded sleeve to unscrew, the micro switch contact is released and disconnected, a locking signal is sent to the control circuit, and the control system controls the driving system to stop acting to keep the locking state. If the driving clutch plate and the driven clutch plate can not be meshed due to the dislocation of the concave-convex structure at the moment, the driven clutch plate can not be pushed forwards, the top sleeve can retract into the threaded sleeve, the spring in the threaded sleeve stores force due to compression, at the moment, the bicycle is pushed once, the driving clutch plate rotates along with the hub, the concave-convex structure of the driving clutch plate and the driven clutch plate can be aligned, the spring in the threaded sleeve releases elastic force, the top sleeve is pushed to move, and therefore the driven clutch plate and the driving clutch plate are pushed to be folded, and a vehicle locking state is achieved.

When the bicycle is unlocked, an unlocking signal is received by the lock body, the control system controls the reverse rotation of the motor of the transmission mechanism, the speed is reduced by the gear set of the transmission mechanism, the gear sleeve of the driving mechanism is driven to rotate reversely, the threaded sleeve is pulled by the gear sleeve to rotate inwards, the top sleeve is driven to move reversely, the driven clutch plate is separated from the driving clutch plate under the action of the second spring, the driven clutch plate is recovered to an unpowered free state, the cam cannot be stirred to rotate, the initial loose state of the cam is recovered, the action on the brake shoe is relieved, the bicycle can ride freely, and unlocking is achieved.

As shown in fig. 8 and 9, the bicycle brake has the same assembly interface with a common bicycle brake, can be installed on any bicycle, and is simple and easy to operate. Meanwhile, the lock body is an additional mechanism of the original bicycle brake system, the bicycle locking function is realized by means of the original bicycle brake system, the use characteristic of a common brake is kept, and the normal use of the bicycle brake is not influenced.

Claims

1. A bicycle brake lock, comprising: brake (1) and lock body (2), brake (1) includes shell (11), brake shoe (12), brake bowl (13) and cam (14), brake bowl (13) and bicycle hub fixed connection, synchronous rotation, lock body (2) are equipped with lock box (21) and assemble control system (22), drive mechanism (23), actuating mechanism (24) in lock box (21), lock body (2) are fixed in brake (1) shell (11), together suit is epaxial at the wheel with brake (1), its characterized in that: the drive mechanism (24) further includes a clutch assembly (241) disposed on the axle axis.

2. A bicycle brake lock according to claim 1, wherein: the clutch assembly (241) comprises a driven clutch plate (242) and a driving clutch plate (243), and the driven clutch plate (242) is provided with a high and low annular outline.

3. A bicycle brake lock according to claim 2, wherein: the driven clutch plate (242) is meshed with the driving clutch plate (243) through a concave-convex staggered linkage structure, the driving clutch plate (243) rotates to drive the driven clutch plate (242) to rotate, and the driving clutch plate (243) is concentrically and fixedly connected with the brake bowl (13).

4. A bicycle brake lock according to claim 1, wherein: the lock box (21) is provided with a positioning shaft (211), the axis of the positioning shaft (211) is provided with a through hole, the excircle of the positioning shaft (211) is provided with a tangent plane, the lock box (21) is sleeved on a wheel shaft through the through hole, and the lock box (21) is fixedly connected with the shell (11).

5. A bicycle brake lock according to claim 1, 2 or 3, wherein: the clutch component (241) is sleeved on the positioning shaft (211) of the lock box (21) through a center hole.

6. A bicycle brake lock according to claim 1, wherein: the transmission mechanism (23) comprises a motor (231), a worm (232), a first gear (233), a clutch gear set (234) and a second gear (237), the clutch gear set (234) comprises a first clutch gear (235), a second clutch gear (236) and an elastic sheet (238), the first gear (233) is meshed with the worm (232) and the clutch gear set (234) respectively, the clutch gear set (234) is meshed with the second gear (237), and the elastic sheet (238) is buckled on the clutch gear set (234).

7. A bicycle brake lock according to claim 1, wherein: the driving mechanism (24) comprises a gear sleeve (244), a threaded sleeve (245), a top sleeve (246), a clutch component (241), a limiting piece (247), a first spring (248) and a second spring (249), the gear sleeve (244) is meshed with the second gear (237) of the transmission mechanism (23), the threaded sleeve (245) is arranged in the gear sleeve (244) and is connected through threads, a shaft hole at the bottom end of the threaded sleeve (245) is provided with a tangent plane which is matched with an excircle tangent plane of a positioning shaft (211) of the lock box (21), the top end of the threaded sleeve (245) is provided with a microswitch triggering protrusion (240), an inner cavity of the threaded sleeve (245) is provided with the first spring (248), the first spring (248) is sleeved on the positioning shaft (211) of the lock box (21), one end of the first spring is abutted against the bottom end of the inner cavity of the threaded sleeve (245), the other end of the top sleeve (246) is abutted against the bottom end of the top sleeve (246), one end of the top sleeve (246) provided with a flange plate is arranged in the threaded sleeve (245), the other end of the spring is extended out and connected with the driven clutch plate (242), a tangent plane is arranged in a center hole of the top sleeve (246), the spring is matched with an excircle tangent plane of a positioning shaft (211) of the lock box (21) and can move along the axial direction of the positioning shaft (211) to push the driving clutch plate (243) to move back and forth, a second spring (249) is sleeved on the positioning shaft (211) of the lock box (21), two ends of the second spring (249) are respectively abutted against the driven clutch plate (242) and the driving clutch plate (243), a limiting plate (247) and a gear sleeve (244) are arranged in a tooth overlapping mode and fixedly installed on the lock box (21), and movement of the gear sleeve (244) along the wheel axis direction is limited.

8. A bicycle brake lock according to claim 1, wherein: the control system (22) comprises a circuit box (221), and a control circuit (222) and a microswitch (223) which are assembled in the circuit box (221), wherein the circuit box (221) is fixedly installed in the lock box (21), the microswitch (223) is triggered to realize signal feedback through a trigger protrusion (230) arranged at the top end of a threaded sleeve (245) of the driving mechanism (24), and the control circuit (222) is connected with the bicycle central control system through a cable.

9. A bicycle brake lock according to claim 1, wherein: the brake (1) cam (14) is a step cam with the size of the outline arranged, the outline of a big cam (141) at the top end is larger, the outline of a small cam (142) at the lower part is smaller, the outline of the big cam (141) is tangent to the outline of the driven clutch plate (242), and the outline of the small cam (142) is tangent to the contact surface of the brake shoe (12).