Technology realization elements

Technical realization elements:

5. The technical problem to be solved by the utility model is the defects or deficiencies in the above-mentioned prior art, and a coaxial circumferential opening and closing mechanism and a lock adopting the structure are provided.

6. In order to achieve the above-mentioned purpose, the technical scheme adopted by this utility model is as follows:

7. A coaxial circumferential opening and closing mechanism, comprising a lock beam, a steel ball, an unlocking wheel, a torsion spring, a motor, and a cam. The lower left side of the lock beam is provided with a groove for opening and closing the steel ball, and the unlocking wheel is provided A groove that provides space for the movement of the steel ball. The torsion spring is assembled in the unlocking wheel. The bottom of the unlocking wheel is equipped with a lever. A motor is arranged under the unlocking wheel. A cam is fixed on the motor output shaft. The motor drives the cam to drive the unlocking wheel. The lever turns it.

8. Further, the unlocking wheel is arranged coaxially and axially with the motor.

9. Further, the outer diameter of the unlocking wheel is the same as that of the motor.

10. This utility model also provides a lock adopting the above-mentioned coaxial circular opening and closing mechanism, including a coaxial circular opening and closing mechanism and a lock body. The inner cavity of the lock body is provided with an inner sleeve, and the coaxial circular opening and closing mechanism is installed in cooperation with In the inner kit, a compression spring is provided at the lower left end of the lock beam, and the compression spring is located in the inner kit. The front side of the inner kit is provided with an nfc antenna module, and an outer cover is provided on the outside of the nfc antenna module. The right side of the inner kit is equipped with a circuit module , The circuit module is electrically connected to the motor and the nfc antenna module. The circuit module obtains energy through the nfc antenna module and provides power to the motor. The cam at the front end of the motor drives the lever on the unlocking wheel to rotate.

11. Further, an inner cover is also provided on the front side of the inner sleeve, and the nfc antenna module is located outside the inner cover.

12. Further, the bottom of the lock body is also provided with a bottom cover.

13. Compared with the prior art, the beneficial technical effects of this utility model are:

14.1. In the coaxial circumferential opening and closing mechanism of the present invention, the unlocking wheel and the motor are arranged coaxially and axially to ensure the maximum output of the motor, and there is no lever structure, which minimizes the space requirement; at the same time, in the overall layout, The left side is the lock beam and compression spring part, the middle is the power part, and the right is the circuit part. The left, middle and right layout is reasonable, the space is fully utilized, and the production and assembly are more convenient.

15.2. The lock of the present utility model adopts the nfc antenna module for power supply, realizes unlocking, does not need built-in battery and maintenance battery, and the overall life span is improved.

16.3. The overall space of the lock of the utility model is fully utilized, the volume is small, and the use is more convenient.

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