Helmet lock

Abstract

The present application relates to a helmet lock, comprising a housing, a lock pin slidably arranged in the housing, and a driving mechanism for driving the lock pin to slide along its length direction. In the locked state, the end of the lock pin protrudes from the housing. It also comprises a Hall sensor and a circuit board. The circuit board connects the driving mechanism and the Hall sensor with electrical signals. The circuit board is used to connect to the backstage. The Hall sensor is arranged in the housing. A sliding member is arranged on the lock pin. A magnet block used in conjunction with the Hall sensor is arranged on the sliding member. In the locked state, the magnet block is close to the Hall sensor, and the backstage displays the locked state. When the magnet block is away from the Hall sensor, the backstage displays the unlocked state. The setting of the Hall sensor facilitates the backstage to monitor the unlocking and locking state, so that the person can check the locking state of the helmet when he is not next to the helmet, making the helmet not easy to be stolen and making the helmet lock convenient to use.

Description

Technical Field

[0001] The present application relates to the field of locks, and in particular to a helmet lock. Background Art

[0002] The helmet lock can fix the helmet on the vehicle to prevent it from falling off or being stolen.

[0003] Usually, the front basket of an electric vehicle is used to place a helmet, with the helmet placed on its side. The helmet lock is located in the helmet cavity, and the helmet lock is used to limit the helmet in the basket, thereby playing an anti-theft role. However, in actual use, it is impossible to monitor the unlocking and locking status of the helmet lock, and it is impossible to control whether the helmet is locked, which makes the helmet lock inconvenient to use. Utility Model Content

[0004] In order to facilitate the use of the helmet lock, the present application provides a helmet lock.

[0005] The present application provides a helmet lock, which adopts the following technical solution:

[0006] A helmet lock comprises a shell, a lock pin slidably arranged in the shell, and a driving mechanism for driving the lock pin to slide along its length direction. When in a locked state, the end of the lock pin protrudes from the shell. The lock lock also comprises a Hall sensor and a circuit board. The circuit board connects the driving mechanism and the Hall sensor with electrical signals. The circuit board is used to connect to a backstage. The Hall sensor is arranged in the shell. A sliding piece is arranged on the lock pin. A magnet block used in conjunction with the Hall sensor is arranged on the sliding piece. When in a locked state, the magnet block is close to the Hall sensor, and the backstage displays a locked state. When the magnet block is away from the Hall sensor, the backstage displays an unlocked state.

[0007] By adopting the above technical solution, the Hall sensor can conveniently transmit the unlocking and locking status electrical signals of the lock pin to the circuit board, and the circuit board will then transmit them to the background, so as to facilitate the monitoring of the unlocking and locking status, thereby facilitating the personnel to check the locking status of the helmet when they are not next to the helmet, making the helmet less likely to be stolen and making the helmet lock easy to use.

[0008] Optionally, the sliding member is provided with a mounting groove for accommodating the magnet block, and when the sliding member slides, the notch of the mounting groove fits against the inner wall of the shell.

[0009] By adopting the above technical solution, a mounting groove is set, and the magnet block is installed in the mounting groove. The inner wall of the back shell is limited in the mounting groove, which facilitates the installation of the magnet block. The magnet block can be fixed without the use of glue. At the same time, the magnet block is not easy to loosen, thereby simplifying the installation process and improving installation efficiency.

[0010] Optionally, the driving mechanism includes a locking driving structure and an unlocking and resetting structure, the outer shell includes a top cover, a bottom cover and a mounting shell, one side of the mounting shell is provided with an installation cavity for installing a locking pin, a sliding member and an unlocking and resetting structure, and the other side of the mounting shell is provided with a driving cavity for installing a locking driving structure and a circuit board, the top cover closes the installation cavity, the bottom cover closes the driving cavity, and the bottom cover and the mounting shell are fixed by ultrasonic welding.

[0011] By adopting the above technical solution, the bottom cover and the mounting shell are fixed by ultrasonic welding, so that the locking driving structure and the circuit board in the driving cavity are sealed and installed, thereby improving the waterproofness and making it difficult for the circuit board and the locking driving structure to be damaged by water. In addition, the mounting cavity and the driving cavity are located on both sides of the mounting shell, which improves the structural tightness of the shell, makes the helmet lock small in size, and facilitates the stable installation of the helmet lock on a smaller plane.

[0012] Optionally, the unlocking and resetting structure includes a driving gear, a driving rack and a buffer spring, a sliding groove is provided on the sliding member, an extension direction of the sliding groove is parallel to the axis of the locking pin, the sliding groove penetrates the sliding member to one side, and spring grooves for accommodating buffer springs are provided on opposite sides of the sliding groove, the diameter of the buffer spring is larger than the width of the sliding groove, and the radial ends of the buffer spring are located in the spring groove; the driving rack is slidably connected in the sliding groove, and a side groove with a limited buffer spring is provided on the driving rack, and the locking driving structure drives the driving rack to slide along the extension direction of the sliding groove.

[0013] By adopting the above technical solution, when the driving rack slides, the sliding member is driven to slide by the elastic force of the buffer spring. When the sliding member slides close to and abuts the Hall sensor, it can be buffered by the buffer spring, so that the force applied to the Hall sensor is flexible, reducing the force applied to the Hall sensor, thereby protecting the Hall sensor. When resetting, the locking drive structure drives the driving gear to reverse, thereby sliding the driving rack in the opposite direction, and driving the locking pin to reset by the elastic force of the spring. When the locking pin is stuck and cannot be reset, the locking drive structure can still drive the driving rack to slide, but at this time the spring is in a compressed state, so that the locking pin is locked immediately after the stuck state is released. This design method allows the locking drive structure to still work when the locking pin is stuck, so that the locking drive mechanism is not easily damaged.

[0014] Optionally, the locking drive structure includes a servo motor, a turbine, a worm and a gear set. The servo motor electrical signal is connected to the circuit board. The servo motor drives the worm to rotate forward and reverse. The worm engages the turbine. The turbine is coaxially fixed with the gear at the input end of the gear set. The turbine rotates to drive the gears in the gear set to rotate. One of the gears in the gear set is coaxially fixed with the drive gear.

[0015] By adopting the above technical solution and setting the worm gear, a speed reduction effect is achieved, so that the gear set reduces the rotation speed, thereby reducing the sliding speed of the lock pin, and reducing the impact force of the sliding part on the Hall sensor.

[0016] Optionally, a slide rail is provided in the shell, and a stabilizing groove for the slide rail to slide is provided on the driving rack, and the length direction of the slide rail is parallel to the sliding direction of the locking pin.

[0017] By adopting the above technical solution, the driving rack slides on the slide rail, so that the sliding of the driving rack is stable, and it is also convenient to position the driving rack and keep the driving rack and the driving gear in a meshing state.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. The setting of the Hall sensor facilitates the background monitoring of the unlocking and locking status, so that the helmet locking status can be checked when the person is not next to the helmet, making the helmet less likely to be stolen and the helmet lock convenient to use;

[0020] 2. The bottom cover and the mounting shell are fixed by ultrasonic welding, so that the circuit board and the locking drive structure are not easily damaged by water. The mounting cavity and the drive cavity are located on both sides of the mounting shell, which makes the helmet lock small in size and convenient for stable installation on a smaller plane.

[0021] 3. The setting of the buffer spring can better protect the Hall sensor and also prevent the servo motor from being damaged when the lock pin is stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the helmet lock according to the embodiment of the present application.

[0023] Figure 2 It is a schematic diagram of the structure inside the shell of the helmet lock of the embodiment.

[0024] Figure 3 It is a schematic diagram of the structure inside the installation cavity of the embodiment.

[0025] Figure 4 Schematic diagram of the structure inside the driving cavity of the embodiment.

[0026] Figure 5 Schematic diagram of the structure of the driving rack, sliding member and buffer spring of the embodiment.

[0027] Explanation of the accompanying drawings: 1. outer shell; 11. top cover; 12. bottom cover; 13. mounting shell; 131. mounting cavity; 132. driving cavity; 133. lock hole; 134. limiting plate; 2. locking pin; 21. sliding member; 211. mounting slot; 3. driving mechanism; 31. locking driving structure; 311. servo motor; 312. turbine; 313. worm; 314. gear set; 32. unlocking and resetting structure; 321. driving gear; 322. driving rack; 323. buffer spring; 324. sliding slot; 325. spring slot; 326. side slot; 327. limiting column; 4. Hall sensor; 5. circuit board; 6. slide rail; 61. stabilizing slot. DETAILED DESCRIPTION

[0028] The present application is further described in detail below with reference to the accompanying drawings and embodiments.

[0029] The present application embodiment discloses a helmet lock. Figure 1 , Figure 2 The helmet lock comprises a housing 1, a lock pin 2 slidably disposed in the housing 1, and a driving mechanism 3 for driving the lock pin 2 to slide along the length direction of the lock pin 2. The housing 1 is provided with a lock hole 133 for the lock pin 2 to slide. When the lock is closed, the end of the lock pin 2 slides outward from the lock hole 133, and the end of the lock pin 2 protrudes from the housing 1. When the lock is unlocked, the end of the lock pin 2 slides into the lock hole 133.

[0030] Reference Figure 1 , Figure 2 The helmet lock also includes a Hall sensor 4 and a circuit board 5. The circuit board 5 connects the driving mechanism 3 and the Hall sensor 4 with electrical signals. The circuit board 5 is used to connect the backstage. The Hall sensor 4 is fixed in the housing 1. A sliding member 21 is fixed to the end of the lock pin 2 located in the housing 1. A magnet block used in conjunction with the Hall sensor 4 is installed on the sliding member 21.

[0031] Reference Figure 3 , Figure 4 The housing 1 includes a top cover 11, a bottom cover 12 and a mounting shell 13. One of the two opposite sides of the mounting shell 13 is provided with a mounting cavity 131, and the other side is provided with a driving cavity 132. The top cover 11 closes the mounting cavity 131, and the bottom cover 12 closes the driving cavity 132. The driving mechanism 3 includes a locking driving structure 31 and an unlocking and resetting structure 32. The locking pin 2, the sliding member 21 and the unlocking and resetting structure 32 are installed in the mounting cavity 131, and the locking driving structure 31 and the circuit board 5 are installed in the driving cavity 132. The bottom cover 12 and the mounting shell 13 are fixed by ultrasonic welding, so that the locking driving structure 31 and the circuit board 5 have a better waterproof effect.

[0032] Reference Figure 3A plurality of limit plates 134 are fixed to the inner wall of the installation cavity 131, and the Hall sensor 4 is fixed between the limit plates 134. A mounting groove 211 for accommodating the magnet block is provided on the side of the sliding member 21 facing the top cover 11. When the sliding member 21 slides, the notch of the mounting groove 211 fits the inner wall of the top cover 11, thereby limiting the magnet block in the mounting groove 211.

[0033] Reference Figure 3 , Figure 5 The unlocking and resetting structure 32 includes a driving gear 321, a driving rack 322 and a buffer spring 323. A sliding groove 324 is provided on the sliding member 21. The extending direction of the sliding groove 324 is parallel to the axis of the lock pin 2. The sliding groove 324 penetrates the sliding member 21 toward one side. Spring grooves 325 for accommodating the buffer spring 323 are provided on opposite sides of the inner wall of the sliding groove 324. The diameter of the buffer spring 323 is greater than the width of the sliding groove 324. The elastic force direction of the buffer spring 323 is parallel to the sliding direction of the lock pin 2.

[0034] Reference Figure 3 , Figure 5 , the two radial ends of the buffer spring 323 are located in the spring groove 325, so that the buffer spring 323 is limited in the spring groove 325. The driving rack 322 is slidably connected in the sliding groove 324, and the driving rack 322 is provided with a side groove 326 for limiting the buffer spring 323. The side groove 326 is fixed with a limiting column 327. The two ends of the buffer spring 323 in the length direction are sleeved on the limiting column 327, so as to improve the connection stability between the buffer spring 323 and the driving rack 322. The locking driving structure 31 drives the driving rack 322 to slide along the extending direction of the sliding groove 324.

[0035] Reference Figure 3 A slide rail 6 is fixed to the inner wall of the mounting cavity 131 , and a stable groove 61 for the slide rail 6 to slide is opened on the driving rack 322 . The length direction of the slide rail 6 is parallel to the sliding direction of the locking pin 2 , thereby improving the sliding stability of the driving rack 322 .

[0036] Reference Figure 4 The locking drive structure 31 is installed in the driving cavity 132. The locking drive structure 31 includes a servo motor 311, a turbine 312, a worm 313 and a gear set 314. The electrical signal of the servo motor 311 is connected to the circuit board 5. The servo motor 311 drives the worm 313 to rotate forward and reverse. The worm 313 engages the turbine 312. The turbine 312 is coaxially fixed with the gear at the input end of the gear set 314. The turbine 312 rotates to drive the gears in the gear set 314 to rotate. One of the gears in the gear set 314 is coaxially fixed with the driving gear 321. A connecting hole for connecting the gear set 314 with the driving gear 321 is opened on the mounting shell 13.

[0037] The implementation principle of a helmet lock in the embodiment of the present application is as follows: the servo motor 311 rotates forward and reverse, and transmits through the gear set 314 and the driving gear 321, so that the driving rack 322 slides back and forth. In the locked state, the driving rack 322 drives the lock pin 2 to slide out of the lock hole 133. At this time, the magnet block is close to the Hall sensor 4, and the Hall sensor 4 receives the signal and feeds it back to the circuit board 5. The circuit board 5 feeds the signal back to the background, so that the background displays the locked state; in the locked state, when the magnet block is away from the Hall sensor 4, the background displays the unlocked state.

[0038] When unlocking, if the lock pin 2 is stuck and cannot be reset, the servo motor 311 rotates through the gear set 314 and the driving gear 321 to drive the driving rack 322 to slide, so that the servo motor 311 is not easily damaged; at this time, the position of the sliding member 21 remains unchanged, and the buffer spring 323 is in a compressed state. The lock pin 2 can be unstuck by tapping the helmet lock, and the elastic force of the buffer spring 323 resets the lock pin 2.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A helmet lock, comprising a housing (1), a lock pin (2) slidably disposed in the housing (1), and a driving mechanism (3) for driving the lock pin (2) to slide along its length direction, wherein in a locked state, an end of the lock pin (2) protrudes out of the housing (1), and is characterized in that: The invention also comprises a Hall sensor (4) and a circuit board (5), wherein the circuit board (5) connects the driving mechanism (3) and the Hall sensor (4) via an electrical signal, and the circuit board (5) is used to connect the backstage, wherein the Hall sensor (4) is arranged in the housing (1), and a sliding member (21) is arranged on the lock pin (2), and a magnet block used in conjunction with the Hall sensor (4) is arranged on the sliding member (21); in the locked state, the magnet block is close to the Hall sensor (4), and the backstage displays the locked state; when the magnet block is away from the Hall sensor (4), the backstage displays the unlocked state.

2. The helmet lock according to claim 1, characterized in that: The sliding member (21) is provided with a mounting groove (211) for accommodating the magnet block. When the sliding member (21) slides, the notch of the mounting groove (211) fits the inner wall of the housing (1).

3. The helmet lock according to claim 1, characterized in that: The driving mechanism (3) comprises a locking driving structure (31) and an unlocking and resetting structure (32); the housing (1) comprises a top cover (11), a bottom cover (12) and a mounting shell (13); one side of the mounting shell (13) is provided with a mounting cavity (131) for mounting a locking pin (2), a sliding member (21) and an unlocking and resetting structure (32); the other side of the mounting shell (13) is provided with a driving cavity (132) for mounting the locking driving structure (31) and a circuit board (5); the top cover (11) closes the mounting cavity (131); the bottom cover (12) closes the driving cavity (132); and the bottom cover (12) and the mounting shell (13) are fixed by ultrasonic welding.

4. The helmet lock according to claim 3, characterized in that: The unlocking and resetting structure (32) comprises a driving gear (321), a driving rack (322) and a buffer spring (323); a sliding groove (324) is provided on the sliding member (21); the extending direction of the sliding groove (324) is parallel to the axis of the locking pin (2); the sliding groove (324) penetrates the sliding member (21) toward one side; spring grooves (325) for accommodating the buffer spring (323) are provided on opposite sides of the sliding groove (324); The diameter of the buffer spring (323) is greater than the width of the sliding groove (324), and the radial ends of the buffer spring (323) are located in the spring groove (325); the driving rack (322) is slidingly connected in the sliding groove (324), and a side groove (326) of the limited buffer spring (323) is provided on the driving rack (322); the locking drive structure (31) drives the driving rack (322) to slide along the extension direction of the sliding groove (324).

5. The helmet lock according to claim 4, characterized in that: The locking drive structure (31) comprises a servo motor (311), a turbine (312), a worm (313) and a gear set (314); the servo motor (311) is electrically connected to a circuit board (5); the servo motor (311) drives the worm (313) to rotate forward and reverse; the worm (313) engages with the turbine (312); the turbine (312) is coaxially fixed with a gear at an input end of the gear set (314); the turbine (312) rotates to drive the gears in the gear set (314) to rotate; and one of the gears in the gear set (314) is coaxially fixed with a driving gear (321).

6. The helmet lock according to claim 4, characterized in that: A slide rail (6) is arranged in the housing (1), and a stabilizing groove (61) for the slide rail (6) to slide is arranged on the driving rack (322), and the length direction of the slide rail (6) is parallel to the sliding direction of the locking pin (2).

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