CN219451804U

CN219451804U - Helmet lock body

Info

Publication number: CN219451804U
Application number: CN202320331867.XU
Authority: CN
Inventors: 翟小泉
Original assignee: Taizhou Sanjiu Intelligent Technology Co ltd
Current assignee: Taizhou Sanjiu Intelligent Technology Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-08-01
Anticipated expiration: 2033-02-17

Abstract

The utility model provides a helmet lock body, which comprises a shell, wherein a containing cavity is arranged in the shell, a driving component and a gear set are arranged in the containing cavity, the driving component drives the gear set to rotate, a transmission block, a moving block, a lock tongue and a spring are also arranged in the containing cavity, the lock tongue is arranged on the moving block, the spring is positioned between the transmission block and the moving block, a rack meshed with the gear set is arranged on the transmission block, the transmission block is driven to move by the gear set, the spring is compressed, and the spring elastic force is released to drive the moving block and the lock tongue to move. Compared with the prior art, the helmet lock body is provided with the spring between the transmission block and the moving block, the force of the movement of the transmission block firstly causes the spring to be compressed, the spring force is released, then the moving block and the lock tongue are driven to move, the rigid movement process in the prior art is converted into flexible movement, the buffer and shock absorption effects are achieved, the motor is not damaged, and the service life of the motor is prolonged.

Description

Helmet lock body

Technical Field

The utility model belongs to the technical field of helmet locks, and relates to a helmet lock body.

Background

At present, the country greatly pushes up the safe riding, and the riding helmet can prevent 85% of the heads from being injured, so that the injury degree and the accident mortality are greatly reduced, and therefore, the riding helmet is very important. However, the existing sharing bicycle or sharing electric bicycle is generally not provided with a helmet, so that a user needs to wear the helmet by himself for safety, and the user needs to carry the helmet after riding, which brings great inconvenience to the action of the user; if the shared bicycle or the shared electric bicycle directly provides the helmet, the helmet is easy to lose when being directly placed on the bicycle, and larger property loss can be caused.

For this situation, a helmet lock appears on the market, such as chinese patent No.: a shared bicycle helmet lock system as described in "202020834479.X", the specific structure of the shared bicycle helmet lock system is: the novel helmet lock comprises a helmet, a lock body and a basket, wherein the helmet is arranged in the basket, the lock body and the helmet are in a locking state through the action of the lock body, a first locking hole and a second locking hole which are oppositely arranged are respectively formed in two sides of the inner edge of the helmet, the lock body comprises a lock shell, a gear linkage mechanism, a two-way locking pin driving mechanism, a driving circuit board and a signal switch, the gear linkage mechanism comprises a motor, the two-way locking pin driving mechanism comprises a first rack and a second rack, gears in the first rack, the second rack and the gear linkage mechanism are meshed, the ends of the first rack and the second rack are respectively provided with a first locking pin and a second locking pin, the motor drives the gear linkage mechanism to drive the two-way locking pin driving mechanism through the driving circuit board, and accordingly unlocking or locking is completed through the action of the first locking pin and the second locking pin. In the structure, the lock pin is directly driven to move by the rack, the moving force is large, buffering is lacked, when a lock hole on the helmet is blocked by an obstacle in the locking process, the lock pin cannot move to lock the helmet, but the motor still operates at the moment but cannot drive the lock pin to move, the electric energy cannot be converted into mechanical energy, and the mechanical energy is completely converted into heat energy, so that the motor is easy to burn out, the damage to the motor is large, and the service life of the motor is reduced.

Disclosure of Invention

The present utility model has been made keeping in mind the above problems occurring in the prior art, and an object of the present utility model is to provide a helmet lock body provided with a spring.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a helmet lock body, includes the casing, be equipped with in the casing and hold the chamber, it is equipped with drive assembly and gear train to hold the intracavity, the drive assembly drive the gear train is rotatory, it still is equipped with transmission piece, movable block, spring bolt and spring to hold the intracavity, the spring bolt is installed on the movable block, the spring is located the transmission piece with between the movable block, be equipped with on the transmission piece with gear train engaged with rack, the transmission piece is by the gear train drives and removes, the spring is compressed, the spring elasticity is released the back and is driven the movable block with the spring bolt removes.

In the helmet lock body, the transmission block comprises a frame body, guide grooves are formed in the moving block, spring grooves which are arranged oppositely are formed in two groove walls of the guide grooves, the springs are located in the frame body, when the springs are in an extending state, two ends of the springs are in contact with the inner side faces of the frame body, the frame body is located in the guide grooves and can move in the guide grooves, the diameter of the springs is larger than the height of the frame body, and the upper ends and the lower ends of the springs are protruded out of the frame body and located in the spring grooves.

In the helmet lock body, the movable block comprises a mounting part and a guiding part which are perpendicular to each other, the guiding groove is formed in the middle of the guiding part, the lock tongue is mounted on the mounting part, an inserting groove is formed in the bottom of the mounting part, a mounting notch is formed in the groove wall of the inserting groove, a connecting block is arranged at one end of the lock tongue, a clamping block is arranged at the end of the connecting block, the diameter of the clamping block is larger than that of the mounting notch, the clamping block is clamped into the inserting groove, and the connecting block is clamped into the mounting notch.

In the helmet lock body, the transmission block comprises a contact part, a sliding block and a frame body, wherein the sliding blocks are arranged on two sides of the contact part, the contact part is in contact with the side face of the guide part, the rack is arranged on the side face of the sliding block, a convex sliding rail is arranged in the accommodating cavity, the sliding block is arranged on the sliding rail in a sliding manner, two oppositely arranged mounting columns are arranged on the inner side face of the frame body, and the spring is sleeved on the mounting columns.

In the helmet lock body, the end part of the lock tongue is provided with a guide inclined plane.

In the helmet lock body, the accommodating cavity is internally provided with the contact switch and the magnetic induction switch, the magnetic induction switch is used for sensing a magnet on the helmet, and the contact switch is used for sensing the movable block.

In the helmet lock body, when the magnetic induction switch senses a magnet on the helmet, the driving assembly starts to operate to drive the lock tongue to move for locking; when the contact switch senses the moving block, the driving assembly stops running, and the lock tongue is locked.

In the helmet lock body, after the driving assembly runs for 0.65s, when the contact switch does not sense the moving block yet, the driving assembly drives the lock tongue to retract to an unlocking state.

In the helmet lock body, the driving assembly comprises a motor and a worm arranged on an output shaft of the motor, the gear set comprises a first duplex gear, a second duplex gear and a third duplex gear, the first duplex gear is meshed with the worm, the second duplex gear is meshed with the first duplex gear, the third duplex gear is meshed with the second duplex gear, and the rack is meshed with the third duplex gear.

In the helmet lock body, the shell comprises a first shell, a second shell and a top cover, wherein the top cover and the first shell are respectively arranged at the top and the bottom of the second shell, and through holes for the bolt to extend out are formed in the shell.

Compared with the prior art, the helmet lock body is provided with the spring between the transmission block and the moving block, the force of the movement of the transmission block firstly compresses the spring, and the spring force of the spring is released to drive the moving block and the lock tongue to move, so that the rigid movement process in the prior art is converted into flexible movement, the functions of buffering and damping are achieved, the motor is not damaged, and the service life of the motor is prolonged; the spring can ensure the laminating nature between the tooth surface and the third duplex gear all the time when the rack slides left and right to can guarantee no matter when the motor corotation or reversal, the meshing nature between the rack and the third duplex gear can both be guaranteed, guarantee driven stability.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic cross-sectional view of the cooperation of the lock tongue, the transmission block, the moving block and the spring in the present utility model.

Fig. 3 is a schematic perspective view of the present utility model with the top cover removed.

Fig. 4 is a schematic perspective view of the present utility model with the top cover and the second housing removed.

In the figure, 1, a first shell; 2. a second housing; 21. a slide rail; 22. a through hole; 3. a top cover; 4. a transmission block; 41. a rack; 42. a contact portion; 43. a slide block; 44. a frame; 5. a moving block; 51. a mounting part; 52. a guide part; 53. an insertion groove; 54. a mounting notch; 55. a guide groove; 56. a spring groove; 6. a bolt; 61. a connecting block; 62. a clamping block; 63. a guide slope; 7. a spring; 8. a contact switch; 9. a magnetic induction switch; 10. a motor; 11. a worm; 12. a first double gear; 13. a second duplex gear; 14. and a third double gear.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1-4, the helmet lock body comprises a shell, wherein the shell comprises a first shell 1, a second shell 2 and a top cover 3, and the top cover 3 and the first shell 1 are respectively arranged at the top and the bottom of the second shell 2. The housing is internally provided with a containing cavity, a driving assembly, a gear set, a transmission block 4, a moving block 5, a lock tongue 6 and a spring 7 are arranged in the containing cavity, and a through hole 22 for the lock tongue 6 to extend out is formed in the housing. The driving component drives the gear set to rotate, a rack 41 meshed with the gear set is arranged on the transmission block 4, and the transmission block 4 is driven by the gear set to move.

The technical scheme is as follows: the transmission block 4 includes a contact portion 42, a slider 43 positioned on both sides of the contact portion 42, and a frame 44, and the rack 41 is positioned on the side surface of the slider 43. The second shell 2 is provided with a convex sliding rail 21, and the sliding block 43 is arranged on the sliding rail 21 in a sliding way, so that the movement of the transmission block 4 is guided, and the stability of the movement of the transmission block 4 is ensured. The inner side of the frame 44 is provided with two mounting posts which are arranged oppositely, the spring 7 is positioned in the frame 44, and the spring 7 is sleeved on the mounting posts. When the spring 7 is in an extended state, both ends of the spring 7 are in contact with the inner side surface of the housing 44. The diameter of the spring 7 is larger than the height of the frame 44, and the upper and lower ends of the spring 7 protrude from the frame 44.

The technical scheme is as follows: the moving block 5 includes a mounting portion 51 and a guide portion 52 perpendicular to each other, the tongue 6 is mounted on the mounting portion 51, and a guide slope 63 is formed at an end portion of the tongue 6. The middle part of the guiding part 52 is provided with a guiding groove 55, and two groove walls of the guiding groove 55 are provided with oppositely arranged spring grooves 56. The frame 44 is located in the guide groove 55 and is movable in the guide groove 55, and a portion of the spring 7 protruding from the frame 44 is located in the spring groove 56, and the contact portion 42 is in contact with the side surface of the guide portion 52.

The technical scheme is as follows: an insertion groove 53 is formed at the bottom of the mounting portion 51, and a mounting notch 54 is formed in the wall of the insertion groove 53. One end of the lock tongue 6 is provided with a connecting block 61, the end part of the connecting block 61 is provided with a clamping block 62, the diameter of the clamping block 62 is larger than that of the connecting block 61, and the diameter of the clamping block 62 is also larger than the width of the mounting notch 54. When the lock tongue 6 is mounted, the clamping block 62 is clamped into the insertion groove 53, the connecting block 61 is clamped into the mounting notch 54, the moving block 5 is mounted on the second housing 2, the bottom surface of the moving block 5 is tightly attached to the second housing 2, and the lock tongue 6 is prevented from falling out of the insertion groove 53.

The technical scheme is as follows: the drive assembly comprises a motor 10 and a worm 11 arranged on the output shaft of the motor 10, and the gear set comprises a first double gear 12, a second double gear 13 and a third double gear 14. The first double gear 12 is meshed with the worm 11, the second double gear 13 is meshed with the first double gear 12, the third double gear 14 is meshed with the second double gear 13, and the rack 41 is meshed with the third double gear 14.

The technical scheme is as follows: the accommodating cavity is also internally provided with a contact switch 8 and a magnetic induction switch 9, the contact switch 8 is used for sensing the moving block 5, the helmet is provided with a magnet, and the magnetic induction switch 9 is used for sensing the magnet on the helmet.

The working process of the technical scheme is as follows: the helmet is provided with a lock hole for inserting the lock tongue 6. When the magnetic induction switch 9 senses the magnet on the helmet, the motor 10 starts to operate to drive the transmission block 4 to move, the transmission block 4 moves in the guide groove 55 relative to the moving block 5, and as part of the spring 7 is positioned in the spring groove 56 and the moving block is still in a static state at the moment, the spring 7 is contacted with the groove wall of the spring groove 56, and the spring 7 is compressed; when the moving paths of the lock tongue 6 and the moving block 5 are unblocked, the elastic force of the spring 7 is released to drive the moving block 5 and the lock tongue 6 to move, and the lock tongue 6 passes through the through hole 22 and enters the lock hole on the helmet. When the contact switch 8 senses the moving block 5, the motor 10 stops running, and the lock tongue 6 is locked.

When the lock tongue 6 encounters the condition that an obstacle cannot move or the helmet is in an irregular homing in the locking process, the moving block 5 cannot move, the elastic force of the spring 7 cannot be released, the motor 10 operates normally, the transmission block 4 moves in the guide groove 55 relative to the moving block 5, and the spring 7 is continuously compressed. The spring 7 ensures the normal operation of the motor 10 through the movement of the transmission block 4 relative to the moving block 5, prevents the motor from being burnt, does not damage the motor, and prolongs the service life of the motor; the spring 7 also avoids the situation that the spring bolt 6 is worn down and affects the locking effect because the spring bolt 6 is still driven by the transmission block 4 when encountering an obstacle. After the motor 10 runs for 0.65s, when the contact switch 8 does not sense the moving block 5, the motor 10 starts to rotate reversely at the moment, so that the lock tongue 6 is retracted to an unlocking state, and the lock tongue 6 and the helmet can be checked at the moment to find out the problem.

The lock body of the helmet lock is provided with the spring 7 between the transmission block 4 and the moving block 5, the force of the movement of the transmission block 4 firstly causes the spring 7 to be compressed, the spring force of the spring 7 is released to drive the moving block 5 and the lock tongue 6 to move, the rigid movement process in the prior art is converted into flexible movement, the functions of buffering and damping are achieved, the motor is not damaged, and the service life of the motor is prolonged. The spring 7 can ensure the laminating property between the tooth surface of the rack 41 and the third duplex gear 14 all the time when the rack 41 slides left and right, so that the meshing property between the rack 41 and the third duplex gear 14 can be ensured no matter the motor 10 rotates positively or reversely, and the transmission stability is ensured.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the first housing 1 is used more herein; a second housing 2; a slide rail 21; a through hole 22; a top cover 3; a transmission block 4; a rack 41; a contact portion 42; a slider 43; a frame 44; a moving block 5; a mounting portion 51; a guide 52; an insertion groove 53; mounting notch 54; a guide groove 55; a spring slot 56; a tongue 6; a connection block 61; a latch 62; a guide slope 63; a spring 7; a contact switch 8; a magnetic induction switch 9; a motor 10; a worm 11; a first double gear 12; a second double gear 13; the third double gear 14, etc., but does not exclude the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a helmet lock body, includes the casing, be equipped with in the casing and hold the chamber, it is equipped with drive assembly and gear train to hold the intracavity, the drive assembly drive the gear train is rotatory, its characterized in that hold intracavity and still be equipped with transmission piece (4), movable block (5), spring bolt (6) and spring (7), spring bolt (6) are installed on movable block (5), spring (7) are located transmission piece (4) with between movable block (5), be equipped with on transmission piece (4) with gear train engaged with rack (41), transmission piece (4) are by the gear train drives and removes, spring (7) are compressed, spring (7) elasticity is released the back and is driven movable block (5) with spring bolt (6) are removed.

2. The helmet lock body according to claim 1, wherein the transmission block (4) comprises a frame body (44), a guide groove (55) is formed in the moving block (5), a spring groove (56) is formed in two groove walls of the guide groove (55), the spring (7) is located in the frame body (44), when the spring (7) is in an extended state, two ends of the spring (7) are in contact with inner side surfaces of the frame body (44), the frame body (44) is located in the guide groove (55) and can move in the guide groove (55), the diameter of the spring (7) is larger than the height of the frame body (44), and the upper end and the lower end of the spring (7) are protruding out of the frame body (44) and are located in the spring groove (56).

3. The helmet lock body according to claim 2, characterized in that the moving block (5) comprises a mounting portion (51) and a guiding portion (52) which are perpendicular to each other, the guiding groove (55) is located in the middle of the guiding portion (52), the lock tongue (6) is mounted on the mounting portion (51), an inserting groove (53) is formed in the bottom of the mounting portion (51), a mounting notch (54) is formed in the groove wall of the inserting groove (53), a connecting block (61) is arranged at one end of the lock tongue (6), a clamping block (62) is arranged at the end of the connecting block (61), the diameter of the clamping block (62) is larger than the diameter of the connecting block (61), the diameter of the clamping block (62) is larger than the width of the mounting notch (54), the clamping block (62) is clamped into the inserting groove (53), and the connecting block (61) is clamped into the mounting notch (54).

4. A helmet lock body according to claim 3, characterized in that the transmission block (4) comprises a contact portion (42) and sliding blocks (43) located at two sides of the contact portion (42), the frame body (44), the contact portion (42) is contacted with the side surface of the guiding portion (52), the rack (41) is located at the side surface of the sliding blocks (43), a protruding sliding rail (21) is formed in the accommodating cavity, the sliding blocks (43) are slidably arranged on the sliding rail (21), two mounting posts which are oppositely arranged are formed on the inner side surface of the frame body (44), and the spring (7) is sleeved on the mounting posts.

5. A helmet lock body according to claim 1, characterized in that the end of the bolt (6) is provided with a guiding bevel (63).

6. A helmet lock body according to claim 1, characterized in that a contact switch (8) and a magnetic induction switch (9) are further arranged in the accommodating cavity, the magnetic induction switch (9) is used for sensing a magnet on the helmet, and the contact switch (8) is used for sensing the moving block (5);

when the magnetic induction switch (9) senses a magnet on the helmet, the driving assembly starts to operate to drive the lock tongue (6) to move for locking; when the contact switch (8) senses the moving block (5), the driving assembly stops running, and the lock tongue (6) is locked;

when the driving assembly runs for 0.65s and the contact switch (8) does not sense the moving block (5), the driving assembly drives the lock tongue (6) to retract to an unlocking state.

7. A helmet lock body according to claim 1, characterized in that the driving assembly comprises a motor (10) and a worm (11) arranged on an output shaft of the motor (10), the gear set comprises a first duplex gear (12), a second duplex gear (13) and a third duplex gear (14), the first duplex gear (12) is meshed with the worm (11), the second duplex gear (13) is meshed with the first duplex gear (12), the third duplex gear (14) is meshed with the second duplex gear (13), and the rack (41) is meshed with the third duplex gear (14).

8. A helmet lock body according to claim 1, characterized in that the housing comprises a first housing (1), a second housing (2) and a top cover (3), the top cover (3) and the first housing (1) are respectively mounted on the top and the bottom of the second housing (2), and through holes (22) for the bolt (6) to extend are formed in the housings.