CN107143219B

CN107143219B - Automatic unlocking device for bicycle

Info

Publication number: CN107143219B
Application number: CN201710274393.9A
Authority: CN
Inventors: 谢伟群; 李杰谟; 辛栋
Original assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Current assignee: Shenzhen Zhaowei Machinery and Electronics Co Ltd
Priority date: 2017-04-25
Filing date: 2017-04-25
Publication date: 2024-05-03
Anticipated expiration: 2037-04-25
Also published as: CN107143219A

Abstract

The invention belongs to the technical field of bicycle locks, and provides an automatic unlocking device for a bicycle, which comprises a shell assembly and an unlocking module, wherein the unlocking module is hermetically connected in the shell assembly, the shell assembly comprises a front cover and a rear cover which are mutually matched and connected, a sealed space is formed between the front cover and the rear cover, the unlocking module comprises a driving assembly, a transmission assembly and a locking assembly, the driving assembly is connected in the sealed space, the locking assembly is connected on the transmission assembly and is positioned outside the shell assembly, and the position sensing assembly is used for converting the position state of the locking assembly into corresponding electric signals and is connected in the sealed space; the design can solve the problems of more parts and poor overall sealing performance of the prior unlocking device.

Description

Automatic unlocking device for bicycle

Technical Field

The invention belongs to the technical field of bicycle locks, and particularly relates to an automatic bicycle unlocking device.

Background

The bicycle is a green and environment-friendly transportation tool, and is a widely used riding tool in China. The combination of bicycles and internet technology creates a new travel mode of sharing bicycles. The shared bicycle identifies the vehicle by scanning a two-dimensional code and the like, and the bicycle control module controls the unlocking device to execute unlocking action after receiving an unlocking instruction from the network.

The automatic unlocking function of the sharing bicycle does not need to be manually participated, and higher reliability is required. Meanwhile, the bicycle is used and parked outdoors for a long time, and has to have good sealing property so as to protect the inductor, the transmission device, the control circuit and the like.

The electric unlocking function of the bicycle in the prior art is completed through a motor, a transmission mechanism, a position sensor, a controller and other parts, all parts are mutually independent, and although all parts have tightness, the whole electric unlocking function is poor in tightness, and the problems of easy damage, difficult maintenance and the like exist.

Disclosure of Invention

The invention aims to provide an automatic unlocking device for a bicycle, which aims to solve the problems of more parts and poor overall sealing performance of the conventional unlocking device.

The invention solves the problems as follows: the utility model provides an automatic unlocking device of bicycle, includes casing subassembly and sealing connection are in unlocking module in the casing subassembly, the casing subassembly is including the protecgulum and the back lid of mutually supporting connection, the protecgulum with form a sealed space between the back lid, unlocking module is including connecting drive assembly in the sealed space, connect drive assembly on the drive assembly with connect on the drive assembly and be located the lock card subassembly outside the casing subassembly, and be used for with the position state of lock card subassembly is converted into corresponding electrical signal and is connected the position response subassembly in the sealed space.

Further, the locking assembly comprises an output disc connected to the tail end of the transmission assembly and a locking piece matched with the output disc, and a hollow groove capable of enabling the output disc to rotate is formed in the locking piece.

Further, a propping cylinder is convexly arranged on one side of the output disc, which is away from the transmission assembly, the propping cylinder is eccentrically arranged on the output disc, a right-angle stop position is arranged on the hollow groove, and the propping cylinder is rotatably propped against the stop position.

Preferably, the position sensing assembly comprises an upper contact switch and a lower contact switch which are arranged in the sealed space, the locking piece is indirectly connected with a sliding contact block, and the sliding contact block can be respectively abutted against the upper contact switch and the lower contact switch along with the movement of the locking piece.

Preferably, the position sensing assembly comprises an upper contact switch and a lower contact switch, an upper contact block which can be contacted with the upper contact switch and a lower contact block which can be contacted with the lower contact switch are arranged on the locking piece, and the upper contact block is contacted with the upper contact switch or the lower contact block is contacted with the lower contact switch when the locking piece moves.

Preferably, the position sensing assembly comprises a hall sensor arranged in the sealing space, an upper magnetic piece and a lower magnetic piece which are connected with the locking piece, and the hall sensor is arranged between the upper magnetic piece and the lower magnetic piece.

Preferably, the upper magnetic member and the lower magnetic member are both located in the sealed space, or the upper magnetic member and the lower magnetic member are both located outside the sealed space.

Preferably, the position sensing assembly comprises an opening photoelectric switch and a locking photoelectric switch which are arranged in the sealing space, and a reflecting piece which is arranged on the locking piece, wherein the reflecting piece moves along with the locking piece and corresponds to the opening photoelectric switch and the locking photoelectric switch respectively.

Further, the driving assembly comprises a driving member connected in the rear cover and a driving shaft connected to the driving member, and the transmission assembly is connected to the driving shaft.

Further, the transmission assembly comprises a plurality of transmission gears meshed with each other, one transmission gear far away from the driving piece is connected with an output shaft, the front end of the output shaft penetrates out of the front cover and is connected with the output disc, and a sealing piece is further arranged between the output shaft and the front cover.

Compared with the prior art, the automatic unlocking device for the bicycle has the technical effects that: through connecting drive assembly, drive assembly and position sensing subassembly in same sealed space, and then whole structure is sealed easier to the leakproofness is better, the structure is compacter, and then with whole module replace or the maintenance can when the maintenance, thereby can solve fragile and difficult problem of maintaining.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a block diagram of an automatic unlocking device for a bicycle according to an embodiment of the present invention.

FIG. 2 is a left side view of the automatic bicycle unlocking device in which the abutment cylinder is at its highest point, according to an embodiment of the present invention.

FIG. 3 is a left side view of the automatic bicycle unlocking device in which the abutment cylinder is not in abutment with the stop position, in accordance with an embodiment of the present invention.

Fig. 4 is a block diagram of a position sensing assembly in the automatic unlocking device according to embodiment 1 of the present invention.

Fig. 5 is a block diagram of a position sensing assembly in the automatic unlocking device according to embodiment 2 of the present invention.

Fig. 6 is a block diagram of a position sensing assembly in the automatic unlocking device according to embodiment 3 of the present invention.

Fig. 7 is a block diagram of a position sensing assembly in an automatic unlocking device according to embodiment 4 of the present invention.

Fig. 8 is a block diagram of a position sensing assembly in an automatic unlocking device according to embodiment 5 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1,4 and 5, in an embodiment of the present invention, an automatic bicycle unlocking device is provided, which includes a housing assembly 10 and an unlocking module sealingly connected in the housing assembly 10. The housing assembly 10 comprises a front cover 11 and a rear cover 12 which are connected in a matched manner, a sealing space 13 is formed between the front cover 11 and the rear cover 12, a first cavity 111 is concavely formed in the front cover 11, and a second cavity 121 is concavely formed in the rear cover 12; a partition plate (not shown) is preferably connected between the front cover 11 and the rear cover 12, a first sealing ring (not shown) is arranged between the front cover 11 and the partition plate, and a second sealing ring (not shown) is arranged between the rear cover 12 and the partition plate; the first and second sealing rings are arranged such that the first and second cavities 111, 121 communicate to form the sealed space 13. The unlocking module comprises a driving assembly 30 connected in the sealed space 13, a transmission assembly 40 connected to the driving assembly 30, a locking assembly 20 connected to the transmission assembly 40 and located outside the shell assembly 10, and a position sensing assembly 50 for converting the position state of the locking assembly 20 into corresponding electric signals and connected in the sealed space 13. The sealing connection between the latch assembly 20 and the transmission assembly 40, i.e., the passage through the housing assembly 10, provides a seal with the housing.

The automatic unlocking device for the bicycle is characterized in that the driving assembly 30, the transmission assembly 40 and the position sensing assembly 50 are connected in the same sealing space 13, so that the whole structure is easier to seal, the tightness is better, the structure is more compact, and the whole module is replaced or maintained during maintenance, so that the problems of easy damage and difficult maintenance can be solved.

Specifically, referring to fig. 2 and 3, in the embodiment of the present invention, the latch assembly 20 includes an output disc 22 connected to the end of the transmission assembly 40, a locking member 21 engaged with the output disc 22, and a spring member 23 connected between the locking member 21 and the front cover 11. The output disc 22 is located at the outer side of the front cover 11, the end of the transmission assembly 40 is connected to the axis of the output disc 22, and the locking member 21 is provided with a hollow slot 211 for the output disc 22 to rotate.

In this embodiment, the opening of the hollow groove 211 facing the output disc 22 is preferably circular or elliptical, so that the output disc 22 can drive the locking member 21 to move up and down when rotating.

Specifically, referring to fig. 2 and 3, in the embodiment of the present invention, a supporting cylinder 221 is convexly disposed on a side of the output disc 22 facing away from the transmission assembly 40, and the supporting cylinder 221 is eccentrically connected to the output disc 22, that is, the axis of the supporting cylinder 221 is parallel to, but not coincident with, the axis of the output disc 22, the supporting cylinder 221 extends perpendicular to the surface of the output disc 22, and the supporting cylinder 221 is also disposed offset from the center of the output disc 22, that is, the supporting cylinder 221 and the output disc 22 are not coaxial. At the same time, a right-angled stop 212 is disposed on the hollow slot 211, the stop 212 is preferably fan-shaped, the area of the stop 212 is preferably less than or equal to one fourth of the slot bottom area of the hollow slot 211, and the abutment cylinder 221 is rotatably abutted against the stop 212.

In this embodiment, referring to fig. 2 and 3, the stop 212 is disposed on a surface of the locking member 21 facing away from the output disc 22, and is preferably located at the right upper part of the bottom of the hollow slot 211, and the output disc 22 rotates counterclockwise when viewed from the front of the locking member 21. The abutment cylinder 221 can abut against the stop 212 within a certain interval during rotation of the output disc 22. When the abutting cylinder 221 rotates to abut against the lower end surface of the stop position 212, the contact point is the rightmost end of the lower end surface; then, as the rotation proceeds, the horizontal position of the abutment cylinder 221 gradually rises, and the contact point between the abutment cylinder 221 and the lower end face gradually moves leftward; when the abutment cylinder reaches the highest point, the contact point between the abutment cylinder 221 and the lower end surface is located at the leftmost end of the lower end surface, and at this time, the locking piece 21 moves upward to the highest point; when the abutment cylinder 221 is not abutted against the lower end surface of the stop 212, the locking member 21 is always at the lowest point under the action of the spring member 23.

Specifically, referring to fig. 3, in the embodiment of the present invention, the driving assembly 30 includes a driving member 31 connected to the rear cover 12 and a driving shaft 32 connected to the driving member 31, wherein the driving member 31 is preferably a driving motor, and the driving shaft 32 is preferably a motor gear engaged with the transmission assembly 40, so that a smaller driving force can be amplified.

Specifically, referring to fig. 3, in the embodiment of the present invention, the transmission assembly 40 includes a plurality of transmission gears meshed with each other, preferably three transmission gears, a first transmission gear 41 meshed with the motor gear, a second transmission gear 42 meshed with the first transmission gear 41, and a third transmission gear 43 meshed with the second transmission gear 42, wherein an output shaft 44 is disposed on the third transmission gear 43, a front end of the output shaft 44 penetrates through the front cover 11 and is connected to the output disc 22, and a sealing member 45 is disposed between the output shaft 44 and the front cover 11. And thus, the sealability of the entire housing assembly 10 can be ensured.

In this embodiment, the first transmission gear 41, the second transmission gear 42, and the third transmission gear 43 may form a parallel gear train, may be a planetary gear transmission structure, may be another gear transmission structure such as a face gear, a bevel gear, or the like, or may be a combination of the above gear transmission structures. The driving assembly 40 transmits the driving force of the driving motor to the output shaft 44, so as to drive the output shaft 44 to rotate, further drive the output disc 22 to rotate, and finally drive the locking member 21 to move up and down. The rotation axis of the output shaft 44 is parallel to the axis of the motor, and may be coaxial or parallel to each other.

The locking member 21 is connected to the position sensing assembly 50, and there are several different embodiments according to the structure of the position sensing assembly 50;

example 1: built-in contact structure

In this embodiment, referring to fig. 4, in the case that the structures of the driving assembly 30, the housing assembly 10, the transmission assembly 40, and the locking member 21 are unchanged, the position sensing module is described as a position sensing assembly 50 in this embodiment, that is, the position sensing assembly 50 includes an upper contact switch 51a and a lower contact switch 52a connected in the housing assembly 10, and a sliding contact block 53a movably connected between the upper contact switch 51a and the lower contact switch 52a, and a link member 54a movable through the housing assembly 10 is further connected to the locking member 21, and the sliding contact block 53a is connected to an upper portion of the link member 54 a.

In this embodiment, as shown in fig. 4, a protrusion 213a extends perpendicularly and outwardly from the back of the locking member 21, and the lower end of the link member 54a is connected to the protrusion 213a such that the moving direction of the link member 54a is parallel to the axis of the link member 54 a. Meanwhile, a through hole (not shown) through which the connecting rod 54a can move is formed in the front cover 11, and a sealing member is further connected between the connecting rod 54a and the front cover 11 to ensure the tightness of the through hole, and the sealing member is a first sealing member 55a and the sealing member 45 between the output shaft 44 and the front cover 11 is a second sealing member to be separated from the sealing member.

In the present embodiment, referring to fig. 2 and 3, and fig. 4, when the locking member 21 is in the locked state, that is, the abutting cylinder 221 is located at the stop position 212 and is not in contact with the sliding contact block 53a, the lower contact switch 52a abuts against the sliding contact block 53a under the action of the spring member 23, and the position sensing module feeds back a locked electrical signal. When the abutting cylinder 221 rotates to abut against the stop position 212 and finally rotates to the highest point, the upper contact switch 51a abuts against the sliding contact block 53a, and at this time, the position sensing module feeds back an unlocking electric signal.

The automatic unlocking position sensing module of the bicycle is designed in the embodiment, the scheme adopts a built-in structure, the sealing performance is good, meanwhile, the contact switch is built-in, the sealing requirement of the contact switch is low, and the cost and the technical difficulty are low. The contact switch realizes position sensing through contact and non-contact, and the reliability is high.

Example 2: external contact structure

In this embodiment, referring to fig. 5, in the case that the structures of the driving assembly 30, the housing assembly 10 and the transmission assembly 40, and the locking member 21 are unchanged, the position sensing module is described as a position sensing assembly 50 in this embodiment, that is, the position sensing assembly 50 includes an upper contact switch 51b and a lower contact switch 52b connected in the housing assembly 10, and an upper contact block 53b disposed outside the housing assembly 10 and above the upper contact switch 51b, and a lower contact block 54b disposed outside the housing assembly 10 and below the lower contact switch 52b, a first slot (not shown) is formed on the housing assembly 10 corresponding to the upper contact switch 51b, a first elastic soft cover 511b is hermetically connected to the first slot, a second slot (not shown) is formed on the housing assembly 10 corresponding to the lower contact switch 52b, a second elastic soft cover 521b is hermetically connected to the second slot, and both the upper contact block 53b and the lower contact block 54b are connected to the locking member 21.

In this embodiment, as shown in fig. 5, the upper contact block 53b and the lower contact block 54b are each of a boss structure extending outwards along the back surface of the locking member 21, and the upper contact block 53b and the lower contact block 54b are preferably parallel to each other. That is, the front cover 11 is located between the upper contact block 53b and the lower contact block 54b, and the upper contact block 53b and the lower contact block 54b may contact the upper contact switch 51b and the lower contact switch 52b, respectively, during movement of the locking member 21.

In this embodiment, referring to fig. 5, the first elastic soft cover 511b and the second elastic soft cover 521b are both arc structures, and the arc convex surface of the first elastic soft cover 511b faces upward, while the arc convex surface of the second elastic soft cover 521b faces downward. In this way, when the front cover 11 is sealed, the upper contact block 53b and the lower contact block 54b can be respectively contacted with the upper contact switch 51b and the lower contact switch 52b, and the first elastic soft cover 511b and the second elastic soft cover 521b can be made of rubber or thermoplastic elastomer, and can be quickly restored after being separated from contact.

In the present embodiment, referring to fig. 2 and 3, and fig. 5, when the locking member 21 is in the locked state, the supporting cylinder 221 is located at the position where the stopping position 212 is not contacted, and the upper contact block 53b contacts the upper contact switch 51b under the action of the spring member 23, and the position sensing module feeds back a locked electrical signal. When the abutment cylinder 221 rotates to abut against the stop 212 and finally rotates to the highest point, the lower contact block 54b contacts with the lower contact switch 52b, and at this time, the position sensing module feeds back an unlocking electric signal.

The automatic unlocking position sensing module of the bicycle designed by the embodiment adopts an external structure, the locking piece 21 and the position sensing structure are mutually independent, the problems of poor resistance of overtightening and poor tightness of overtightening of the first sealing piece 55a on the connecting rod piece 54a are avoided, the sealing structure is more reliable, the action of the locking piece 21 is smoother, and the assembly operation of parts is convenient.

Example 3: external Hall type structure

In this embodiment, referring to fig. 6, in the case that the structures of the driving assembly 30, the housing assembly 10 and the transmission assembly 40, and the locking member 21 are unchanged, the position sensing module is described as a position sensing assembly 50 in this embodiment, that is, the position sensing assembly 50 includes a hall sensor 51c connected in the housing assembly 10, an upper magnetic member 52c connected above the hall sensor 51c, and a lower magnetic member 53c connected below the hall sensor 51c, wherein the upper magnetic member 52c and the lower magnetic member 53c are connected to the locking member 21, and the magnetic poles of the upper magnetic member 52c and the lower magnetic member 53c facing the hall sensor 51c are different.

In this embodiment, referring to fig. 6, by providing a hall sensor 51c in the housing assembly 10, preferably in the front cover 11, when the locking member 21 moves, the upper magnetic member 52c and the lower magnetic member 53c with different magnetic poles approach the hall sensor 51c, and by monitoring the positions of the upper magnetic member 52c or the lower magnetic member 53c with corresponding magnetic poles, the unlocking or locking electric signal can be fed back.

In this embodiment, as shown in fig. 6, a first boss 213c and a second boss 214c parallel to each other extend outward from the back of the locking member 21, the upper magnetic member 52c and the lower magnetic member 53c are both located outside the housing assembly 10, and the upper magnetic member 52c is connected to the first boss 213c, and the lower magnetic member 53c is connected to the second boss 214 c. And the front cover 11 is not provided with holes, so that complete sealing can be realized.

In this embodiment, referring to fig. 2 and 3, and fig. 6, when the supporting cylinder 221 rotates to the highest point, the upper magnetic member 52c is not in contact with the hall sensor 51c, and the hall sensor 51c determines the upward moving distance of the locking member 21 according to the electromagnetic strength between the upper magnetic member 52c and the upper magnetic member, at this time, the position sensing module feeds back an unlocking electric signal. When the supporting cylinder 221 rotates to disengage from the stop 212, the lower magnetic member 53c is also not contacted with the hall sensor 51c, and at this time, the hall sensor 51c can also sense the electromagnetic strength with the lower magnetic member 53c to determine the downward moving distance of the locking member 21, and the position sensing module feeds back a locked electrical signal.

The automatic unlocking position sensing module of bicycle of this embodiment design, the scheme passes through the position of hall response principle monitoring locking piece 21, and noncontact response, locking piece 21 action resistance is little, does not need the trompil on the casing subassembly 10, and the leakproofness is good, and the part is few simple structure simultaneously.

Example 4: built-in Hall type structure

In this embodiment, referring to fig. 7, the position sensing assembly 50 includes a hall sensor 51d connected in the housing assembly 10, an upper magnetic member 52d connected above the hall sensor 51d, and a lower magnetic member 53d connected below the hall sensor 51 d; the difference of this embodiment from example 3 is only that: the locking member 21 is connected to a link member 54d that can pass through the housing assembly 10, the upper magnetic member 52d and the lower magnetic member 53d are both positioned in the housing assembly 10, and the upper magnetic member 52d and the lower magnetic member 53d are both connected to the link member 54 d.

In this embodiment, referring to fig. 2 and 3, and fig. 7, when the supporting cylinder 221 rotates to the highest point, the upper magnetic member 52d is not in contact with the hall sensor 51d, and the hall sensor 51d determines the upward moving distance of the locking member 21 according to the electromagnetic strength between the upper magnetic member 52d and the upper magnetic member 52d, at this time, the position sensing module feeds back an unlocking electric signal. When the supporting cylinder 221 rotates to disengage from the stop 212, the lower magnetic member 53d is also not contacted with the hall sensor 51d, and at this time, the hall sensor 51d can also sense the electromagnetic strength with the lower magnetic member 53d to determine the downward moving distance of the locking member 21, and the position sensing module feeds back a locked electrical signal.

The automatic unlocking position sensing module of the bicycle designed by the embodiment monitors the position of the locking piece 21 through the Hall sensing principle, senses in a non-contact mode, is small in action resistance of the locking piece 21, is built-in through the connecting rod piece 54d, and avoids the risk of rusting of certain magnetic pieces.

Example 5: photoelectric induction type structure

In this embodiment, referring to fig. 8, in the case that the structures of the driving assembly 30, the housing assembly 10, the transmission assembly 40, and the locking member 21 are unchanged, the position sensing module is described as a position sensing assembly 50 in this embodiment, that is, the position sensing assembly 50 includes an opening photoelectric switch 51e and a locking photoelectric switch 52e connected in the housing assembly 10, and a reflective member 53e disposed outside the housing assembly 10 and matched with the opening photoelectric switch 51e and the locking photoelectric switch 52e, wherein the reflective member 53e is connected to the back surface of the locking member 21.

In this embodiment, as shown in fig. 8, the reflective member 53e is driven to correspond to the switch-on photoelectric switch 51e or the switch-off photoelectric switch 52e respectively during the moving process of the locking member 21, so as to realize the feedback of the electrical signal by the photoelectric sensing.

In this embodiment, referring to fig. 8, the reflective member 53e is embedded on the back surface of the locking member 21, and preferably a first transparent window (not shown) is disposed on the housing assembly 10 corresponding to the on-state photoelectric switch 51e, and a second transparent window (not shown) is disposed on the housing assembly 10 corresponding to the off-state photoelectric switch 52 e. The design is more convenient for realizing photoelectric induction. Of course, the front casing may also be a transparent structure, and the on-position photoelectric switch 51e is provided with a first sensing device, and the first sensing device may emit light and receive reflected light, so as to implement power connection; likewise, a second sensing device may be disposed on the locking photoelectric switch 52e, where the second sensing device may emit light and receive reflected light, so as to implement an electrical connection.

In this embodiment, referring to fig. 2 and 3, and fig. 8, when the supporting cylinder 221 rotates to the highest point, the reflecting member 53e faces the opening photoelectric switch 51e, and the position sensing module feeds back an unlocking electric signal. When the abutting cylinder 221 rotates to be separated from the stop position 212, the locking piece 21 moves downwards under the action of the spring piece 23, so that the reflecting piece 53e is opposite to the locking photoelectric switch 52e, and the position sensing module feeds back a locked electric signal.

The automatic unlocking position sensing module of the bicycle designed by the embodiment adopts the photoelectric sensing principle, is also in non-contact sensing, has small action resistance of the locking piece 21, does not need to be provided with holes on the shell assembly 10, and has good sealing performance, few parts, simple structure and low cost.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. An automatic unlocking device for a bicycle, which is characterized in that: the unlocking module comprises a driving component, a transmission component and a locking component, wherein the driving component is connected with the driving component, the locking component is connected with the transmission component and is positioned outside the shell component, and the position sensing component is used for converting the position state of the locking component into corresponding electric signals and is connected with the sealing space;

the locking assembly comprises an output disc connected to the tail end of the transmission assembly and a locking piece matched with the output disc, and a hollowed-out groove for the rotation of the output disc is formed in the locking piece;

The output disc is provided with a propping cylinder in a protruding mode at one side, away from the transmission assembly, of the output disc, the propping cylinder is eccentrically arranged on the output disc, a right-angle stop position is arranged on the hollow groove, and the propping cylinder can be rotatably propped against the stop position;

The stop is arranged on the face of the locking element facing away from the output disk.

2. The automatic bicycle unlocking device according to claim 1, wherein: the position sensing assembly comprises an upper contact switch and a lower contact switch which are arranged in the sealing space, the locking piece is indirectly connected with a sliding contact block, and the sliding contact block can be respectively abutted against the upper contact switch and the lower contact switch along with the movement of the locking piece.

3. The automatic bicycle unlocking device according to claim 1, wherein: the position sensing assembly comprises an upper contact switch and a lower contact switch, an upper contact block which can be contacted with the upper contact switch and a lower contact block which can be contacted with the lower contact switch are arranged on the locking piece, and the upper contact block is contacted with the upper contact switch or the lower contact block is contacted with the lower contact switch when the locking piece moves.

4. The automatic bicycle unlocking device according to claim 1, wherein: the position sensing assembly comprises a Hall sensor arranged in the sealing space, an upper magnetic piece and a lower magnetic piece which are connected with the locking piece, and the Hall sensor is positioned between the upper magnetic piece and the lower magnetic piece.

5. The automatic bicycle unlocking device according to claim 4, wherein: the upper magnetic piece and the lower magnetic piece are both positioned in the sealing space, or the upper magnetic piece and the lower magnetic piece are both positioned outside the sealing space.

6. The automatic bicycle unlocking device according to claim 1, wherein: the position sensing assembly comprises an opening photoelectric switch and a locking photoelectric switch which are arranged in the sealing space, and a reflecting piece which is arranged on the locking piece, wherein the reflecting piece moves along with the locking piece and corresponds to the opening photoelectric switch and the locking photoelectric switch respectively.

7. The automatic bicycle unlocking device according to any one of claims 1 to 6, wherein: the driving assembly comprises a driving piece connected in the rear cover and a driving shaft connected to the driving piece, and the transmission assembly is connected to the driving shaft.

8. The automatic bicycle unlocking device according to claim 7, wherein: the transmission assembly comprises a plurality of transmission gears meshed with each other, one transmission gear far away from the driving piece is connected with an output shaft, the front end of the output shaft penetrates out of the front cover and is connected with the output disc, and a sealing piece is further arranged between the output shaft and the front cover.