Shared bicycle unlocking and locking device
By integrating the lock structure with a combination of bolt, pressure spring, micro switch, geared motor and eccentric wheel, the problem of complex lock structure and easy jamming of shared bicycles is solved, and convenient installation and stable use are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI DREAM CHASING IOT EQUIP CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-04-14
AI Technical Summary
Existing shared bicycle locks have complex structures, are inconvenient to install and maintain, and their motors are prone to jamming, resulting in a reduced lifespan.
It adopts an integrated design of locking tongue, pressure spring, micro switch, geared motor, eccentric wheel and control circuit board. The locking and unlocking functions are realized by the eccentric wheel driving the locking tongue, which simplifies the structure and improves stability.
The lock's structure and functional modules are integrated, making installation and maintenance convenient and improving the stability and service life of the equipment.
Smart Images

Figure CN224117414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a shared bicycle opening and closing locking device. Background Technology
[0002] Currently, the locking devices of shared bicycles are generally controlled by APP software for locking and unlocking. Common lock types include horseshoe locks, which contain locking and unlocking mechanisms, control circuits, GPS modules, etc.
[0003] Chinese patent publication number "CN214835543U" discloses a locking and unlocking structure for shared bicycles. It includes a housing, a motor, a reduction gear assembly, a lead screw assembly, and a locking pin. The motor is fixed inside the housing. The drive gear of the reduction gear assembly is mounted on the motor's output shaft. First and third double gears are loosely fitted onto a first transition shaft, and a second double gear is loosely fitted onto a second transition shaft. Two gear portions of the first double gear mesh with the drive gear and one gear portion of the second double gear, respectively. The other gear portion of the second double gear meshes with one gear portion of the third double gear, and the other gear portion of the third double gear meshes with a driven gear. The lead screw assembly includes a lead screw and a nut. The driven gear is fixedly mounted on the lead screw. One end of the locking pin is connected to the nut, and the other end extends outside the housing. The motor directly drives the locking pin through the reduction gear assembly and the lead screw assembly to complete the locking and unlocking action.
[0004] The above-mentioned opening and closing locking structure is designed separately and installed on the lock body of the shared bicycle. Its deceleration component and lead screw component have relatively complex structures, high precision requirements for parts, high manufacturing costs, and inconvenient installation and maintenance. In addition, the opening and closing of the lock is achieved by the forward and reverse rotation of the motor, which has the defects of easy jamming and reduced motor life.
[0005] Therefore, the design of locks for shared bicycles presents challenges such as how to integrate structural and functional modules and how to facilitate installation and maintenance. Utility Model Content
[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a shared bicycle opening and closing device. The device adopts an integrated design of structural and functional modules and is convenient to install and maintain.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A shared bicycle opening and closing device includes a box body and a box cover, with the box cover installed at the upper opening of the box body;
[0009] The speaker, battery, and GPS module are located on the left side of the box.
[0010] The right side of the box contains a locking tongue, a pressure spring, a locking micro switch, an unlocking micro switch, a geared motor, an eccentric wheel, a middle pressure plate, and a control circuit board.
[0011] The right side of the box body is provided with an inclined locking tongue slot, which includes a front slot and a rear slot spaced apart from each other. The locking tongue is provided in the locking tongue slot. The locking tongue is a round rod, and the front end of the locking tongue extends out from the locking tongue hole at the front right side of the box body.
[0012] The right side of the box body is located on the left side of the front slot and near the latch hole. Two first positioning posts are provided on the two first positioning posts. The locking micro switch is provided on the two first positioning posts. The spring of the locking micro switch extends to the right and is close to the front slot.
[0013] Two second positioning pins are provided on the right side of the box body, corresponding to the right side of the front slot and away from the lock tongue hole. The two second positioning pins are equipped with unlocking micro switches. The spring of the unlocking micro switch is tilted to the left and extends to the space between the front slot and the rear slot.
[0014] The rear of the locking tongue is provided with a step, and the right side of the front end face of the step corresponds to the spring of the unlocking micro switch in position. A pressure spring is provided between the rear end face of the step and the rear groove.
[0015] The right side of the housing is located between the first positioning post and the rear slot, corresponding to the left side of the latch slot. The geared motor slot is perpendicular to the latch slot. The geared motor is installed in the geared motor slot. The output shaft of the geared motor is equipped with an eccentric wheel. The eccentric wheel is located between the spring of the locking micro switch and the left side of the front end face of the stage.
[0016] A middle pressure plate is provided above the locking tongue, pressure spring, locking micro switch, unlocking micro switch, geared motor, and eccentric wheel. The middle pressure plate is fixed on the right side of the housing.
[0017] The control circuit board is installed above the middle pressure plate and is electrically connected to the speaker, battery, GPS module, geared motor, locking micro switch, and unlocking micro switch.
[0018] Preferably, a battery slot is provided on the front left side of the box body, and a battery is provided in the battery slot.
[0019] Preferably, a GPS slot is provided on the left rear part of the box body, and a GPS module is provided in the GPS slot.
[0020] Preferably, a speaker slot is provided on the left front part of the lower side of the box cover, and a speaker is provided in the speaker slot, so that the speaker is placed on the left front part of the box body.
[0021] The beneficial effects of this utility model are:
[0022] This invention integrates the locking tongue, pressure spring, locking micro switch, unlocking micro switch, geared motor, eccentric wheel, intermediate pressure plate, control circuit board, battery, GPS module, and speaker into a single housing. The control circuit board receives commands from the APP software and, through the rotation of the geared motor and the linkage control with the locking and unlocking micro switches, the eccentric wheel pushes the locking tongue to a certain stage, and with the help of the pressure spring, stably achieves the locking and unlocking functions. Therefore, this invention adopts an integrated design of structural and functional modules, making installation and maintenance convenient. Attached Figure Description
[0023] Figure 1 This is a three-dimensional appearance diagram of the present utility model.
[0024] Figure 2 for Figure 1 A three-dimensional exploded diagram.
[0025] Figure 3 This is a schematic diagram of the interior of the box in this utility model.
[0026] Figure 4 This is a schematic diagram of the unlocked state of this utility model (with the cover, middle pressure plate, control circuit board, and speaker removed).
[0027] Figure 5 This is a schematic diagram of the locked state of this utility model (with the cover, middle pressure plate, control circuit board, and speaker removed).
[0028] Part number in the picture:
[0029] 1-Box body, 101-Lock tongue hole, 102-Lock tongue slot, 103-First positioning post, 104-Gear motor slot, 105-Second positioning post, 106-Battery slot, 107-GPS slot, 108-Intermediate pressure plate positioning post, 2-Box cover, 201-Speaker slot, 3-Lock tongue, 301-Stage, 4-Pressure spring, 5-Locking micro switch, 6-Unlocking micro switch, 7-Gear motor, 8-Eccentric wheel, 9-Intermediate pressure plate, 10-Control circuit board, 11-Battery, 12-GPS module, 13-Speaker. Detailed Implementation
[0030] The technical solution of this utility model will be further described in detail below with reference to the embodiments and accompanying drawings:
[0031] See Figures 1-5 :
[0032] A shared bicycle opening and closing locking device is installed inside a horseshoe lock, including a box body 1 and a box cover 2, with the box cover 2 installed at the upper opening of the box body 1.
[0033] The left side of the box 1 contains a speaker 13, a battery 11, and a GPS module 12.
[0034] The right side of the housing 1 is equipped with a locking tongue 3, a pressure spring 4, a locking micro switch 5, an unlocking micro switch 6, a geared motor 7, an eccentric wheel 8, an intermediate pressure plate 9, and a control circuit board 10.
[0035] The right side of the box body 1 is provided with an inclined locking tongue groove 102. The locking tongue groove 102 includes a front groove and a rear groove that are spaced apart from each other. The front groove is close to the locking tongue hole 101, and the rear groove is far away from the locking tongue hole 101. The locking tongue 3 is provided in the locking tongue groove 102. The locking tongue 3 is a round rod, and the front end of the locking tongue 3 extends out from the locking tongue hole 101 at the front right side of the box body 1.
[0036] On the right side of the housing 1, corresponding to the left side of the front slot and near the latch hole 101, there are two first positioning posts 103. The two first positioning posts 103 are equipped with locking micro switches 5. The spring of the locking micro switch 5 extends to the right and is close to the front slot.
[0037] Two second positioning posts 105 are provided on the right side of the box 1, corresponding to the right side of the front slot and away from the latch hole 101. The two second positioning posts 105 are provided with unlocking micro switches 6. The spring of the unlocking micro switch 6 extends to the left between the front slot and the rear slot.
[0038] The rear of the locking tongue 3 is provided with a step 301. The right side of the front end face of the step 301 corresponds to the spring of the unlocking micro switch 6 in position. A pressure spring 4 is provided between the rear end face of the step 301 and the rear slot.
[0039] Inside the housing 1, on the right side, corresponding to the left side of the latch groove 102 and located between the first positioning post 103 and the rear groove, there is a geared motor groove 104. The geared motor groove 104 is perpendicular to the latch groove 102. Thus, the geared motor groove 104 and the second positioning post 105 are arranged to the left and right of the latch groove 102. The geared motor 7 is installed in the geared motor groove 104. The output shaft end of the geared motor 7 is provided with an eccentric wheel 8. The eccentric wheel 8 is located between the spring of the locking micro switch 5 and the left side of the front end face of the stage 301.
[0040] The right side of the box 1 is provided with three intermediate pressure plate positioning posts 108, which are arranged in a triangle.
[0041] A middle pressure plate 9 is provided above the locking tongue 3, pressure spring 4, locking micro switch 5, unlocking micro switch 6, reduction motor 7, and eccentric wheel 8. The middle pressure plate 9 is fixed to the right side of the box 1 by three middle pressure plate positioning posts 108. The middle pressure plate 9 presses down and limits the locking tongue 3, pressure spring 4, locking micro switch 5, unlocking micro switch 6, and reduction motor 7 below.
[0042] The control circuit board 10 is mounted above the intermediate pressure plate 9. The control circuit board 10 is electrically connected to the speaker 13, battery 11, GPS module 12, geared motor 7, locking micro switch 5, and unlocking micro switch 6 via data lines and / or wires.
[0043] A battery slot 106 is provided on the front left side of the box 1, and a battery 11 is provided in the battery slot 106.
[0044] A GPS slot 107 is provided on the left rear part of the box 1, and a GPS module 12 is provided in the GPS slot 107.
[0045] A speaker slot 201 is provided on the front left side of the lower side of the box cover 2, and a speaker 13 is provided in the speaker slot 201, so that the speaker 13 is placed on the front left side inside the box body 1.
[0046] The locking micro switch 5, unlocking micro switch 6, geared motor 7, control circuit board 10, battery 11, GPS module 12, and speaker 13 are all existing technologies and can be purchased externally.
[0047] The working principle of this utility model:
[0048] unlock:
[0049] When the communication module of the control circuit board 10 receives the unlocking command, it causes the geared motor 7 to drive the eccentric wheel 8 to rotate. The surface of the eccentric wheel 8 slides along the inner end face of the platform 301 of the latch 3. The eccentric wheel 8 rotates from the low point to the high point to push the latch 3 to move inward into the housing 1 to achieve inward retraction. When the eccentric wheel 8 rotates to the high point, the spring of the unlocking micro switch 6 is released, that is, the spring is no longer tightly pressed by the inner end face of the platform 301 of the latch 3. The unlocking micro switch 6 sends a signal, the geared motor 7 stops rotating, and the unlocking state is maintained.
[0050] Lock:
[0051] When the communication module of the control circuit board 10 receives the locking command, it causes the geared motor 7 to drive the eccentric wheel 8 to rotate. The surface of the eccentric wheel 8 slides along the inner end face of the platform stage 301 of the latch 3. The high point of the eccentric wheel 8 gradually moves away from the inner end face of the platform stage 301 of the latch 3. The pressure spring 4 pushes the latch 3 to move outward from the housing 1 until the latch 3 extends out of the latch hole 101. When the high point of the eccentric wheel 8 tightly presses the spring of the locking micro switch 5, the locking micro switch 5 sends a signal, the geared motor 7 stops rotating, and the locking state is maintained.
[0052] The above description is merely a preferred embodiment of this utility model. It should be noted that several modifications and improvements can be made without departing from the principle of this utility model, and these should also be considered to fall within the protection scope of this utility model.
Claims
1. A shared bicycle unlocking and locking device, characterized in that: It includes a box body and a box lid, with the box lid installed at the upper opening of the box body; The speaker, battery, and GPS module are located on the left side of the box. The right side of the box contains a locking tongue, a pressure spring, a locking micro switch, an unlocking micro switch, a geared motor, an eccentric wheel, a middle pressure plate, and a control circuit board. The right side of the box body is provided with an inclined locking tongue slot, which includes a front slot and a rear slot spaced apart from each other. The locking tongue is provided in the locking tongue slot. The locking tongue is a round rod, and the front end of the locking tongue extends out from the locking tongue hole at the front right side of the box body. The right side of the box body is located on the left side of the front slot and near the latch hole. Two first positioning posts are provided on the two first positioning posts. The locking micro switch is provided on the two first positioning posts. The spring of the locking micro switch extends to the right and is close to the front slot. Two second positioning pins are provided on the right side of the box body, corresponding to the right side of the front slot and away from the lock tongue hole. The two second positioning pins are equipped with unlocking micro switches. The spring of the unlocking micro switch is tilted to the left and extends to the space between the front slot and the rear slot. The rear of the locking tongue is provided with a step, and the right side of the front end face of the step corresponds to the spring of the unlocking micro switch in position. A pressure spring is provided between the rear end face of the step and the rear groove. The right side of the housing is located between the first positioning post and the rear slot, corresponding to the left side of the latch slot. The geared motor slot is perpendicular to the latch slot. The geared motor is installed in the geared motor slot. The output shaft of the geared motor is equipped with an eccentric wheel. The eccentric wheel is located between the spring of the locking micro switch and the left side of the front end face of the stage. A middle pressure plate is provided above the locking tongue, pressure spring, locking micro switch, unlocking micro switch, geared motor, and eccentric wheel. The middle pressure plate is fixed on the right side of the housing. The control circuit board is installed above the middle pressure plate and is electrically connected to the speaker, battery, GPS module, geared motor, locking micro switch, and unlocking micro switch.
2. The shared bicycle unlocking and locking device according to claim 1, characterized in that: The box body has a battery slot on the front left side, and a battery is installed in the battery slot.
3. The shared bicycle unlocking and locking device according to claim 1, characterized in that: The box body has a GPS slot on the left rear side, and a GPS module is installed in the GPS slot.
4. The shared bicycle unlocking and locking device according to claim 1, characterized in that: A speaker slot is provided on the left front part of the lower side of the box cover, and a speaker is installed in the speaker slot, so that the speaker is placed on the left front part of the box body.
Citation Information
Patent Citations
Shared bicycle unlocking and locking structure
CN214835543U