CN221053433U

CN221053433U - Lock body structure and helmet lock

Info

Publication number: CN221053433U
Application number: CN202322769919.4U
Authority: CN
Inventors: 蔡万波; 庄佳元; 吉祥勤
Original assignee: Changzhou Wujin Huarui Electronic Co Ltd
Current assignee: Changzhou Wujin Huarui Electronic Co Ltd
Priority date: 2023-10-16
Filing date: 2023-10-16
Publication date: 2024-05-31
Anticipated expiration: 2033-10-16

Abstract

The utility model relates to the technical field of locks for two-wheeled vehicles, in particular to a lock body structure and a helmet lock, wherein the lock body structure comprises limiting fan blades and a driving assembly, the fan surfaces of the limiting fan blades are used for limiting, and the driving assembly is used for driving the limiting fan blades to move for locking and unlocking. According to the lock body structure, the fan surface of the limiting fan blade is used for limiting, so that the limiting effect is good, the structure is stable, the safety is high, and the reliability and the anti-theft performance are improved.

Description

Lock body structure and helmet lock

Technical Field

The utility model relates to the technical field of locks for two-wheeled vehicles, in particular to a lock body structure and a helmet lock.

Background

According to the national requirements for travel safety, a shared helmet is required to be arranged on the shared electric bicycle, and the anti-theft problem of the shared helmet becomes a problem which the industry has to face, and the helmet is limited and locked by the cooperation of a helmet lock and a bicycle basket.

In the prior art, a limiting pin is generally arranged on a helmet lock and extends out to limit the helmet, but the limiting area of the limiting pin is small, and the reliability and the anti-theft performance of the limiting pin are poor. In addition, the driving mode of the limiting pin is linear telescopic, and the rotation motion of the driving motor needs to be converted into linear motion, so that the structure is complex, and the reliability is reduced.

Disclosure of utility model

The utility model provides a lock body structure, which aims to solve the technical problems of low reliability and poor anti-theft performance of a helmet lock in the prior art by arranging a limiting pin to limit the helmet, and improves the reliability and the anti-theft performance by arranging a fan blade-shaped limiting piece and limiting the fan surface of a limiting fan blade.

The technical scheme of the utility model is as follows:

A lock body structure comprising:

The fan surface of the limiting fan blade is used for limiting;

The driving assembly is used for driving the limiting fan blades to move for locking and unlocking.

Further, the driving assembly drives the limiting fan blade to rotate for locking and unlocking; specifically, the driving assembly drives the limiting fan blade to positively and negatively rotate for locking and unlocking.

Further, the lock body structure comprises a shell, the driving assembly is arranged in the shell, the limiting fan blades are arranged outside the shell, the driving assembly comprises an output shaft, and the output shaft extends out of the shell and drives the limiting fan blades to rotate.

Further, a bearing is arranged between the output shaft and the shell.

Further, the driving assembly further comprises a driving motor, a worm wheel and a gear set, the driving motor drives the gear set to rotate through the worm and the worm wheel, and a gear at the tail end in the gear set drives the output shaft to rotate.

Further, the gear set comprises a clutch module, the clutch module comprises a clutch gear and a safety gear, the clutch gear and the safety gear are respectively connected with the driving motor and the output shaft along with rotation, the clutch gear and the safety gear are coaxially arranged, limit teeth capable of being engaged in a matched mode are arranged on the clutch gear and the safety gear, and the clutch gear can be engaged with or separated from the safety gear under the action of a clutch spring.

Further, one end of the clutch spring is connected with or abutted against the clutch gear, and the other end of the clutch spring is abutted against a wear-resistant gasket arranged in the shell.

Further, a limiting column for limiting gears positioned on the front side and/or the rear side of the clutch module in the gear set is formed on the shell, and an avoidance gap for avoiding the movement of the clutch gear is formed on the limiting column.

Further, a lock-in-place closing switch and an unlock-in-place opening switch are arranged on the shell, a trigger part is formed on the limiting fan blade, the trigger part triggers the lock-in-place closing switch when the limiting fan blade is locked in place, and the trigger part triggers the unlock-in-place opening switch when the limiting fan blade is unlocked in place; and pins of the locking in-place switch and the unlocking in-place switch extend into the shell to be electrically connected.

In another aspect of the utility model there is provided a helmet lock comprising a lock body structure as defined in any one of the preceding claims; the helmet lock is arranged in the basket, and when the lock is closed, the limiting fan blades extend into the inner side of the side-placed helmet to vertically limit the helmet lock.

After the technical scheme is adopted, the lock body structure and the helmet lock provided by the utility model have the following beneficial effects compared with the prior art:

1. Compared with the limiting mode in the prior art, the limiting area is greatly increased, and the reliability and the anti-theft performance are ensured.

2. Compared with the linear motion mode in the prior art, the lock body structure provided by the utility model has the advantages that the rotation of the limiting fan blade is arranged for locking and unlocking, the rotary motion is not required to be converted into the linear motion, and the transmission is simpler and more reliable.

3. According to the lock body structure, the bearing is arranged on the output shaft, so that the transmission efficiency can be improved, and the stability and reliability of integral transmission can be ensured.

4. The lock body structure provided by the utility model is provided with the clutch module, and the clutch in the motion process is realized through the clutch spring, the clutch gear and the safety gear, so that the phenomenon of locked rotation is prevented, and the service life and the reliability of a product are improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a lock body structure;

FIG. 2 is an exploded view of the lock body structure at a first view angle;

FIG. 3 is an exploded view of the lock body structure at a second view angle;

FIG. 4 is a schematic diagram of a gear set;

FIG. 5 is a schematic diagram of a clutch module in a gear set;

Fig. 6 is a schematic view of the structure of the helmet lock when used for locking the helmet.

Wherein,

A limit fan blade 1 and a trigger part 11; the driving assembly 2, the output shaft 21, the bearing 211, the driving motor 22, the worm 23, the worm wheel 24, the gear set 25, the clutch module 251, the clutch gear 2511, the safety gear 2512, the clutch spring 2513, the limit gear 2514, the wear-resistant gasket 2515, the first gear 252 and the second gear 253; the shell 3, the upper shell 31, the lower shell 32, the limit column 33, the avoidance notch 331, the lock in-place switch 34, the unlock in-place switch 35 and the PCB 36;

a helmet lock 4; a basket 5, a limiting portion 51; an intermediate mounting plate 6, an opening 61; a helmet 7.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

Embodiment one:

As shown in fig. 1-5, the present embodiment provides a lock body structure, which can be used as a helmet lock to lock a helmet, and the lock body structure includes a limiting fan blade 1 and a driving component 2, wherein the limiting fan blade 1 is formed into a fan blade shape, and the limiting fan blade is used for limiting or locking a waiting locking piece of the helmet; the driving component 2 is used for driving the limiting fan blade 1 to move to lock and unlock, specifically, the limiting fan blade 1 is locked when moving to the sector of the limiting fan blade to stretch out for limiting, and the limiting fan blade 1 is unlocked when moving to the sector of the limiting fan blade to retract. So, this embodiment carries out spacingly through the sector of spacing flabellum 1, compares with the mode that carries out spacingly through the spacer pin among the prior art, greatly increased spacing area, guarantee reliability and theftproof nature.

Further, in this embodiment, the driving component 2 is provided to drive the limiting fan blade 1 to rotate for locking and unlocking, that is, when the locking is performed, the fan surface of the limiting fan blade 1 extends out for limiting, and when the unlocking is performed, the fan surface of the limiting fan blade 1 retracts for releasing the limiting. Therefore, compared with the linear motion mode in the prior art, the rotary motion is converted into the linear motion without consideration, the transmission structure is simplified, and the transmission is simpler and more reliable. Preferably, the driving assembly 2 drives the limit fan blade 1 to rotate forward and backward to perform locking and unlocking, namely, the limit fan blade is rotated forward to realize locking and unlocking, and the limit fan blade is rotated reversely to realize unlocking, so that the occupied space can be reduced compared with unidirectional rotation.

As shown in fig. 2-3, the lock body structure of the present embodiment includes a housing 3, where the housing 3 specifically includes an upper shell 31 and a lower shell 32, a driving assembly 2 is disposed inside the housing 3, and a limit fan blade 1 is disposed above the outside of the housing 3, where the driving assembly 2 includes an output shaft 21 located at the transmission end, and the output shaft 21 extends out of the housing 3 and is assembled with the limit fan blade 1 along with rotation, so as to drive the limit fan blade 1 to rotate together. In the embodiment, the limit fan blades 1 are arranged outside the shell 3, so that the size of the shell 3 is reduced; in addition, the shell 3 does not need to be provided with a hole with larger size for accommodating the limit fan blade 1 to enter and exit, so that external objects can be prevented from entering the shell 3 or entering the shell 3 under the action of the limit fan blade 1, and the work of each part in the shell 3 is influenced.

Preferably, the bearing 211 is further disposed between the output shaft 21 and the housing 3 in this embodiment, and is particularly, but not limited to, a ball bearing, so that the transmission efficiency can be improved, and a part of force can be absorbed when the limiting fan blade 1 and the output shaft 21 bear an external force, so that the overall output efficiency is not significantly decreased, and thus, the transmission efficiency is improved and the reliability can be ensured.

As shown in fig. 4, the driving assembly 2 of the present embodiment further includes a driving motor 22, a worm 23, a worm wheel 24, and a gear set 25, where the driving motor 22 drives the gear set 25 to rotate through the worm 23 and the worm wheel 24, and a final gear in the gear set 25 is fixed to the output shaft 21 to drive the output shaft 21 to rotate. Thus, through the worm and gear structure and the gear set 25, torque amplification can be realized, and unidirectional self-locking can also be realized.

As shown in fig. 5, the gear set 25 includes a clutch module 251, the clutch module 251 includes a clutch gear 2511 and a safety gear 2512, the clutch gear 2511 and the safety gear 2512 are coaxially disposed, the clutch gear 2511 and the safety gear 2512 are respectively connected to the driving motor 22 and the output shaft 21 in a rotating manner, specifically, the gear set 25 further includes a first gear 252 located at a front transmission side of the clutch module 251 and a second gear 253 located at a rear transmission side of the clutch module 251, the clutch gear 2511 is meshed with the first gear 252, and when the driving motor 22 rotates, the clutch gear 2511 can be driven to rotate by the worm 23, the worm wheel 24 and the first gear 252; the safety gear 2512 is meshed with the second gear 253, and the safety gear 2512 can drive the output shaft 21 and the limit fan blade 1 to rotate through the second gear 253 and the gear on the output shaft 21.

Further, a limit tooth 2514 capable of being engaged is provided at the top of the clutch gear 2511 and at the bottom of the safety gear 2512, a clutch spring 2513 is provided between the clutch gear 2511 and the lower case 32, and the clutch gear 2511 can be engaged with or disengaged from the safety gear 2512 under the action of the clutch spring 2513. Specifically, when the limit fan blade 1 does not encounter large resistance and can normally move, the clutch gear 2511 is meshed with the safety gear 2512 under the action of the clutch spring 2513, and the driving motor 22 drives the output shaft 21 and the limit fan blade 1 to rotate through the worm 23, the worm wheel 24, the first gear 252, the clutch gear 2511, the safety gear 2512 and the second gear 253; when the limit fan blade 1 encounters large resistance or is limited and can not rotate when reaching the locking position/unlocking position, the second gear 253 and the safety gear 2512 can not rotate, at the moment, if the driving motor 22 continues to work, the worm 23, the worm wheel 24 and the first gear 252 are driven to rotate, the clutch gear 2511 is stressed to adaptively press down the clutch spring 2513 so as to be disengaged from the safety gear 2512, and thus, the clutch is realized through a simple clutch spring 2513, the locked rotation can not occur in the whole movement process, the driving motor 22 and other components are protected, and the reliability and the service life of a product are improved.

The clutch spring 2513 of this embodiment is installed between the clutch gear 2511 and the lower case 32, specifically, one end of the clutch spring 2513 is connected to or abuts against the clutch gear 2511, a wear-resistant pad 2515 is provided on the lower case 32, the wear-resistant pad 2515 is optionally but not limited to a wear-resistant plastic material such as nylon, and the other end of the clutch spring 2513 abuts against the wear-resistant pad 2515, so that wear to the lower case 32 can be reduced.

As shown in fig. 2, in this embodiment, a limiting post 33 is formed on the lower housing 32 corresponding to the first gear 252 and the second gear 253 in the gear set 25, so as to limit the up-and-down movement of each gear, and the limiting post 33 may be touched when the clutch gear 2511 moves up and down, and in this embodiment, an avoidance notch 331 is formed on the limiting post 33 to avoid the movement of the clutch gear 2511, so that the structure is more compact without affecting the movement of the clutch gear 2511.

As shown in fig. 2, in this embodiment, a lock-in-place closing switch 34 and an unlock-in-place opening switch 35 are provided on the housing 3, a trigger portion 11, specifically, a bump at the tail end of the trigger portion is formed on the limit blade 1, and when the limit blade 1 is locked in place, the bump triggers the lock-in-place closing switch 34, and when the limit blade 1 is unlocked in place, the bump triggers the unlock-in-place opening switch 35. The lock in place switch 34 and the unlock in place switch 35 are optionally, but not limited to, micro switches, and pins of the micro switches extend into the housing 3 to electrically connect with a PCB board 36 in the housing 3.

From the above, it can be seen that the lock body structure provided in this embodiment is limited by the rotation of the limiting fan blade, and has the advantages of good limiting effect, stable structure, high safety, small size, fashionable appearance, simple installation, low cost and the like.

Embodiment two:

The present embodiment provides a helmet lock 4, where the helmet lock 4 adopts the lock body structure described in the first embodiment, and the helmet lock 4 can be used for limiting and locking a sharing helmet 7 on a sharing electric bicycle. Specifically, as shown in fig. 6, a middle mounting plate 6 is installed in the basket 5 of the electric bicycle, the helmet 7 is laterally placed on one side of the middle mounting plate 6, the wearing opening of the helmet 7 faces the middle mounting plate 6, the middle mounting plate 6 and the wearing opening of the helmet 7 are in profiling arrangement, a limiting part 51 is further arranged in the basket 5, and the helmet 7 can be limited in the X-axis direction and the Y-axis direction through the middle mounting plate 6 and the limiting part 51. The helmet lock 4 of this embodiment is mounted on the other side of the middle mounting plate 6, and the limiting fan blade 1 of the helmet lock can extend into the inner side of the helmet 7 through the opening 61 on the middle mounting plate 6 to limit the helmet in the vertical direction, i.e. in the Z-axis direction. Therefore, the limiting fan blade 1 of the helmet lock 4 is used for limiting, a bolt, a rope belt or a lock hole and other limiting structures are not required to be arranged on the helmet 7, the integrity of the helmet 7 is guaranteed, the limiting area is large, the limiting effect is better, and the anti-theft performance is stronger; in addition, the helmet lock 4 is built in, unlike the prior art, which is exposed to the outside, greatly improving the safety and reliability of the helmet lock 4 itself.

As a preferred embodiment of the utility model, the limit blade 1 on the helmet lock 4 is provided to rotate positively and negatively to perform locking and unlocking, and when the lock is closed to extend completely, a part of the limit blade 1 remains in the middle mounting plate 6, that is, when the lock is closed, one edge of the limit blade 1 is always positioned on the inner side of the middle mounting plate 6, which is opposite to the helmet 7, so that the part of the limit blade 1 remaining in the middle mounting plate 6 can play a guiding role when unlocking, more importantly, during unlocking, the limit blade 1 does not drive the webbing on the helmet 7 to move and cannot be blocked by the webbing to enter the middle mounting plate 6, thereby ensuring successful unlocking.

The helmet lock 4 of the present embodiment is operative:

When receiving the instruction of closing the helmet lock, the driving motor 22 rotates clockwise with the worm 23, the worm 23 and the worm wheel 24 are matched and simultaneously rotate with the gear set 25, the moment is amplified, the output shaft 21 of the gear set 25 rotates clockwise with the limiting fan blade 1, namely rotates forward by 90 degrees, the limiting fan blade 1 rotates to the inner side of the helmet 7, and the helmet 7 is limited in the Z-axis direction. When the protruding point behind the limit blade 1 presses the lock-in-place switch 34, the driving motor 22 stops rotating, and simultaneously, a lock-in signal is given to the controller. Meanwhile, if the limit fan blade 1 and the clamping column of the output shaft 21 cannot move due to large resistance in the moving process, the clutch gear 2511 overcomes the pressure of the clutch spring 2513, and is separated from the safety gear 2512, so that the clutch is realized, the driving motor 22 is prevented from blocking, and the driving motor 22 and other components are protected.

When receiving the helmet lock unlocking instruction, the driving motor 22 drives the worm 23 to rotate anticlockwise, the worm 23 and the worm wheel 24 are matched and simultaneously drive the gear set 25 to rotate, the moment is amplified, the output shaft 21 of the gear set 25 drives the limiting fan blade 1 to rotate anticlockwise, namely rotate reversely by 90 degrees, the limiting fan blade 1 rotates into the middle mounting plate 6, and the limiting of the helmet 7 in the Z-axis direction is released. After the protruding point at the rear of the limit fan blade 1 is pressed to the unlocking in-place switch 35, the driving motor 22 stops rotating, and simultaneously an unlocking signal is given to the controller. Meanwhile, if the limit fan blade 1 and the clamping column of the output shaft 21 cannot move due to large resistance in the moving process, the clutch gear 2511 overcomes the pressure of the clutch spring 2513, and is separated from the safety gear 2512, so that the clutch is realized, the driving motor 22 is prevented from blocking, and the driving motor 22 and other components are protected.

From the above, it can be seen that the helmet lock provided in this embodiment is limited by the limiting fan blade, and the helmet lock is built-in, so that the safety and reliability are high, and the anti-theft effect is good.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A lock body structure, comprising:

The fan comprises limit fan blades (1), wherein the fan surfaces of the limit fan blades (1) are used for limiting;

The driving assembly (2) is used for driving the limiting fan blades (1) to move for locking and unlocking.

2. The lock body structure according to claim 1, wherein the driving component (2) drives the limit fan blade (1) to rotate for locking and unlocking; specifically, the driving component (2) drives the limiting fan blade (1) to rotate positively and negatively to lock and unlock.

3. The lock body structure according to claim 2, wherein the lock body structure comprises a housing (3), the driving assembly (2) is arranged in the housing (3), the limit fan blade (1) is arranged outside the housing (3), the driving assembly (2) comprises an output shaft (21), and the output shaft (21) extends out of the housing (3) and drives the limit fan blade (1) to rotate.

4. A lock body structure according to claim 3, characterized in that a bearing (211) is provided between the output shaft (21) and the housing (3).

5. A lock body structure according to claim 3, wherein the driving assembly (2) further comprises a driving motor (22), a worm (23), a worm wheel (24) and a gear set (25), the driving motor (22) drives the gear set (25) to rotate through the worm (23) and the worm wheel (24), and a final gear in the gear set (25) drives the output shaft (21) to rotate.

6. The lock body structure according to claim 5, wherein the gear set (25) comprises a clutch module (251), the clutch module (251) comprises a clutch gear (2511) and a safety gear (2512), the clutch gear (2511) and the safety gear (2512) are respectively connected with the driving motor (22) and the output shaft (21) in a rotating manner, the clutch gear (2511) and the safety gear (2512) are coaxially arranged, limit teeth (2514) capable of being engaged in a matching manner are arranged on the clutch gear (2511) and the safety gear (2512), and the clutch gear (2511) can be engaged with or separated from the safety gear (2512) under the action of a clutch spring (2513).

7. The lock body structure according to claim 6, characterized in that one end of the clutch spring (2513) is connected to or abuts against the clutch gear (2511), and the other end of the clutch spring (2513) abuts against a wear-resistant spacer (2515) provided in the housing (3).

8. The lock body structure according to claim 6, wherein a limiting column (33) for limiting gears of the gear set (25) located at the front side and/or the rear side of the clutch module (251) is further formed on the shell (3), and an avoidance notch (331) for avoiding movement of the clutch gear (2511) is formed on the limiting column (33).

9. A lock body structure according to claim 3, wherein the shell (3) is provided with a lock-in-place switch (34) and an unlock-in-place switch (35), the limit fan blade (1) is provided with a trigger part (11), the trigger part (11) triggers the lock-in-place switch (34) when the limit fan blade (1) is locked in place, and the trigger part (11) triggers the unlock-in-place switch (35) when the limit fan blade (1) is unlocked in place; pins of the lock-in-place switch (34) and the unlock-in-place switch (35) extend into the shell (3) to be electrically connected.

10. A helmet lock comprising a lock body structure according to any one of claims 1 to 9; the helmet lock is arranged in the basket (5), and when the lock is closed, the helmet lock is vertically limited by the limiting fan blades (1) extending into the inner side of the side-placed helmet (7).