Lock

Abstract

The lock comprises an outer shell, a lock beam, an inner shell assembly and a locking mechanism, the outer shell comprises a first top wall and a first annular wall, the first annular wall is arranged around the first top wall so that a first installation cavity can be formed between the first annular wall and the first top wall, and a first installation opening is formed in the side, away from the first top wall, of the first installation cavity; the lock beam comprises an extension section movably mounted in the shell; the inner shell assembly is installed in the first installation cavity through the first installation opening. The locking mechanism is used for locking or unlocking the extending section, the locking mechanism is fixedly arranged in the inner shell assembly, and the locking mechanism and the first mounting opening are isolated through the inner shell assembly. The lock provided by the embodiment of the utility model has the advantage of high safety.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lock technical field, concretely relates to a lock. BACKGROUND

[0002] In the related art, the shell of the padlock comprises an outer shell and a cover, the outer shell is provided with a mounting port for mounting a locking mechanism such as a lock tongue into the outer shell, and then the cover is buckled on the outer shell to close the mounting port.

[0003] However, when the cover is damaged, the user can directly disassemble the locking mechanism from the mounting port to unlock the locking beam of the padlock, resulting in low security of the padlock. SUMMARY

[0004] Embodiments of the utility model provide a lock, comprising:

[0005] The outer shell comprises a first top wall and a first ring wall, the first ring wall is arranged around the first top wall to form a first mounting cavity between the first ring wall and the first top wall, and a first mounting port is formed on the side of the first mounting cavity away from the first top wall;

[0006] The locking beam comprises an extension section movably mounted in the outer shell;

[0007] The inner shell assembly is mounted in the first mounting cavity through the first mounting port; and

[0008] The locking mechanism is used for locking or unlocking the extension section, the locking mechanism is fixedly arranged in the inner shell assembly, and the locking mechanism and the first mounting port are isolated by the inner shell assembly to prevent the locking mechanism and the inner shell assembly from being disconnected from the side where the first mounting port is located.

[0009] In some embodiments, the inner shell assembly comprises a first inner shell and a second inner shell connected by a first connecting structure, a second mounting cavity is formed between the first inner shell and the second inner shell, and the locking mechanism is at least partially fixedly mounted in the second mounting cavity;

[0010] The first inner shell is an integral part and is sealed on the side of the second mounting cavity facing the first mounting port, and the first inner shell also shields the first connecting structure to prevent the first inner shell and the second inner shell from being disconnected from the side where the first mounting port is located.

[0011] In some embodiments, the inner housing assembly is further provided with a third mounting cavity, and a third mounting opening is arranged on one side of the first ring wall and faces the third mounting cavity; the lock further comprises a control circuit board, which is mounted in the third mounting cavity through the third mounting opening, and the control circuit board is electrically connected with the locking mechanism for controlling the locking mechanism.

[0012] In some embodiments, the locking mechanism comprises:

[0013] a conversion piece, which is capable of rotating to an unlocking state and a locking state to unlock or lock the extension section; and

[0014] an electric motor, which is in transmission connection with the conversion piece for driving the conversion piece to rotate to the unlocking state.

[0015] In some embodiments, the locking mechanism further comprises a second transmission piece, which is in transmission connection with the electric motor so that the electric motor can drive the second transmission piece to rotate, and three outer protrusions are arranged on the outer circumferential side of the second transmission piece, and the second transmission piece is capable of rotating to intermittently push the conversion piece to rotate to the unlocking state through the three outer protrusions; and / or,

[0016] the locking mechanism further comprises a mechanical lock cylinder, which is in transmission connection with the conversion piece for driving the conversion piece to rotate to the unlocking state; and / or,

[0017] the locking mechanism further comprises a torsional spring for driving the conversion piece to rotate to the locking state.

[0018] In some embodiments, the lock further comprises a radio frequency antenna for communicating with an external device to supply power to the lock.

[0019] In some embodiments, the lock further comprises a base, which is mounted on the outer housing to close the first mounting opening, and the radio frequency antenna is arranged in the base;

[0020] wherein the base is a plastic piece, and the outer housing and / or the inner housing assembly are metal pieces;

[0021] the distance between the radio frequency antenna and the outer housing and the distance between the radio frequency antenna and the inner housing assembly are greater than or equal to 8 mm.

[0022] In some embodiments, the locking mechanism further comprises a locking piece, and the outer circumferential side of the conversion piece is provided with a notch.

[0023] When the conversion piece is in the lock-off state, the conversion piece blocks the locking piece from moving away from the extension section, so that the locking mechanism locks the extension section;

[0024] When the conversion piece is in the lock-off state, the conversion piece blocks the locking piece from moving away from the extension section, so that the locking mechanism locks the extension section;

[0025] In some embodiments, the inner shell assembly is provided with a track slot, and the locking piece is movably mounted in the track slot, so that the locking piece can move towards or away from the extension section;

[0026] The opening edge of the gap comprises a first edge and a second edge which are spaced along the circumference of the conversion piece, and when the conversion piece is in the lock-off state, the first edge is located on the side of the second edge close to the track slot;

[0027] The conversion piece can rotate from the lock-off state to an intermediate state, so that the first edge is tangent to the center line of the track slot;

[0028] The maximum angle of rotation of the conversion piece from the intermediate state to the lock-off state is 25-35 degrees.

[0029] In some embodiments, the conversion piece is provided with a first limiting structure, and the outer shell is provided with a second limiting structure, and the first limiting structure cooperates with the second limiting structure to limit the rotation angle of the conversion piece.

[0030] The beneficial effects of the embodiments of the utility model:

[0031] In the embodiments of the application, even if the first mounting opening of the outer shell is opened, the lock beam and the locking mechanism can cooperate with each other to fix the inner shell assembly in the outer shell and cannot be taken out without unlocking the extension section by the locking mechanism; at this time, the inner shell assembly isolates the locking mechanism from the first mounting opening, so that the user still cannot drive the locking structure to unlock the lock beam from the first mounting opening, and cannot disconnect the locking mechanism and the inner shell assembly, thereby improving the security or anti-disassembly performance of the lock. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0033] Figure 1 This is a schematic diagram of the lock provided in the embodiment of this application.

[0034] Figure 2 for Figure 1 The lock shown is a cross-sectional view.

[0035] Figure 3 for Figure 2 The diagram shows the mating structure of the inner shell assembly and the lock beam of the lock.

[0036] Figure 4 for Figure 3 Exploded view of the inner shell assembly of the lock shown.

[0037] Figure 5 for Figure 2 A magnified view of the area at point X in the image.

[0038] Figure 6 for Figure 2 The diagram shows the locking mechanism and locking beam of the lock.

[0039] Figure 7 for Figure 6 Schematic diagram of some parts of the locking mechanism shown. Figure 1 .

[0040] Figure 8 for Figure 6 Schematic diagram of some parts of the locking mechanism shown. Figure 2 .

[0041] Figure 9 for Figure 2 The diagram shows the cooperation structure between the inner shell assembly and the locking mechanism of the lock.

[0042] Figure 10 for Figure 9 A magnified view of the area at point Y.

[0043] Figure 11 for Figure 1 An exploded view of the radio frequency antenna of the lock shown.

[0044] Figure label:

[0045] 100. Outer shell;

[0046] 11. First top wall; 12. First annular wall; 13. First mounting cavity; 14. First mounting opening; 15. First annular protrusion;

[0047] 200. Lock beam;

[0048] 21. Extension section; 211. Hole; 22. Spring; 23. Lock cap; 24. First sealing ring; 241. Second annular protrusion; 242. Third annular protrusion;

[0049] 300, inner shell assembly;

[0050] 31, first inner shell; 311, first connecting structure; 312, second top wall; 313, third mounting cavity; 314, third mounting opening; 315, wire slot; 32, second inner shell; 321, track slot; 322, first limiting structure; 33, second mounting cavity; 34, second connecting structure; 35, detection component; 36, fifth mounting cavity;

[0051] 400, locking mechanism;

[0052] 41, conversion piece; 411, second groove; 412, first groove; 413, notch; 415, first edge; 416, second edge; 417, second limiting structure; 42, motor; 43, torsional spring; 44, second transmission piece; 441, outer protrusion; 45, first transmission piece; 451, base plate; 452, protrusion; 453, first connecting rod; 46, mechanical lock cylinder; 461, second connecting rod; 47, locking piece;

[0053] 500, control circuit board;

[0054] 600, radio frequency antenna;

[0055] 700, base. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model. In addition, it should be understood that the specific embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model. In the utility model, the orientation words such as 'up' and 'down' are generally used for indicating the up and down in the actual use or working state of the device, and the specific is the direction of the drawing in the drawings. And 'inner' and 'outer' are used for the contour of the device.

[0057] Please refer to Figure 1 and Figure 2The embodiment of the present application provides a lock, which comprises a shell 100, a lock beam 200, an inner shell assembly 300 and a locking mechanism 400. The shell 100 comprises a first top wall 11 and a first ring wall 12, the first ring wall 12 is arranged around the first top wall 11 to form a first mounting cavity 13 between the first ring wall 12 and the first top wall 11, and a first mounting opening 14 is formed on the side of the first mounting cavity 13 away from the first top wall 11. The lock beam 200 comprises an extension section 21 movably mounted in the shell 100. The inner shell assembly 300 is mounted in the first mounting cavity 13 through the first mounting opening 14. The locking mechanism 400 is used for locking or unlocking the extension section 21, the locking mechanism 400 is fixedly arranged on the inner shell assembly 300, and the locking mechanism 400 and the first mounting opening 14 are isolated by the inner shell assembly 300 to limit the locking mechanism 400 and the inner shell assembly 300 from being disconnected from the side where the first mounting opening 14 is located.

[0058] In the embodiment of the present application, even if the first mounting opening 14 of the shell 100 is opened, the lock beam 200 and the locking mechanism 400 can cooperate with each other to fix the inner shell assembly 300 in the shell 100 and cannot be taken out in the case that the locking mechanism 400 does not unlock the extension section 21. At this time, the inner shell assembly 300 isolates the locking mechanism 400 from the first mounting opening 14, so that the user still cannot drive the locking mechanism to unlock the lock beam 200 from the first mounting opening 14, and the locking mechanism 400 and the inner shell assembly 300 cannot be disconnected, thereby the security of locking or the anti-disassembly performance can be improved.

[0059] Please continue to refer to Figure 3 and Figure 4 For example, the inner shell assembly 300 can comprise a first inner shell 31 and a second inner shell 32 connected by a first connecting structure 311, a second mounting cavity 33 is formed between the first inner shell 31 and the second inner shell 32, and the locking mechanism 400 is at least partially fixedly arranged in the second mounting cavity 33, so that the locking mechanism 400 and the inner shell assembly 300 are fixedly connected, and the lock beam 200 can fix the inner shell assembly 300 in the first mounting cavity 13 through the locking mechanism 400.

[0060] In some embodiments, the first inner shell 31 is an integral part and blocks the side of the second mounting cavity 33 facing the first mounting opening 14. The first inner shell 31 also shields the first connecting structure 311 to limit the first inner shell 31 and the second inner shell 32 from being disconnected from the side where the first mounting opening 14 is located.

[0061] Further, by shielding the first connecting structure 311 by the first inner shell 31, the first inner shell 31 can be limited to be disassembled, and the user cannot expose the locking mechanism 400 by disassembling the first inner shell 31, so that the user cannot continue to disassemble the locking mechanism 400 from the inner shell assembly 300, and cannot drive the locking mechanism 400 to be unlocked from the lock bar 200, so that the user cannot unlock the lock bar 200 by disassembling the components inside the outer shell 100 from the first mounting port 14 when the locking mechanism 400 locks the lock bar 200, thereby improving the security of the lock.

[0062] For example, the first inner shell 31 includes a second top wall 312 away from the first mounting port 14. The first connecting structure 311 includes a first threaded hole provided on the second top wall 312, and the first threaded hole is a blind hole. The second inner shell 32 is screwed and fixed in the first threaded hole, so that the first inner shell 31 and the second inner shell 32 are connected and fixed.

[0063] Correspondingly, the second mounting cavity 33 can be formed between the second top wall 312 and the second inner shell 32.

[0064] It should be noted that the outer shell 100 and the first inner shell 31 can also be connected and fixed by the second connecting structure 34, thereby further improving the stability of the installation of the inner shell assembly 300.

[0065] The second connecting structure 34 can be exposed to the first mounting port 14, for example, the second connecting structure 34 includes a mounting hole facing the first mounting port 14; the second connecting structure 34 can also be provided between the first inner shell 31 and the first ring wall 12, for example, the second connecting structure 34 includes a buckle provided on the first ring wall 12, and the embodiments of the present application are not limited thereto.

[0066] Therefore, after the first mounting port 14 is opened, even if the user disconnects the second connecting structure 34, the inner shell assembly 300 can still have a good anti-disassembly effect through the shielded first connecting structure 311.

[0067] In some embodiments, the inner shell assembly 300 further comprises a third mounting cavity 313, and the third mounting cavity 313 is provided with a third mounting port 314 on the side facing the first ring wall 12. The lock further comprises a control circuit board 500, and the control circuit board 500 is mounted in the third mounting cavity 313 through the third mounting port 314. The control circuit board 500 is electrically connected with the locking mechanism 400, so as to control the locking mechanism 400.

[0068] Therefore, by arranging the locking mechanism 400 and the control circuit board 500 in the second mounting cavity 33 and the third mounting cavity 313 respectively, even if the external liquid seeps into the second mounting cavity 33 along the extension section 21 of the lock bar 200, the seeped liquid is not easy to damage the control circuit board 500 in the third mounting cavity 313.

[0069] The control circuit board 500 can be a flexible circuit board (FPC), the control circuit board 500 can also be a rigid circuit board (PCB), the control circuit board 500 can also be a flexible rigid combined circuit board (FPCB), and the embodiments of the present application do not limit the control circuit board 500, and the control circuit board 500 can be provided with a control unit, a data communication unit, an energy storage unit and the like.

[0070] In some embodiments, the third mounting cavity 313 is located on the side of the second mounting cavity 33 away from the first top wall 11, so that the third mounting cavity 313 is away from the first top wall 11 for mounting the mounting hole of the movable mounting lock beam 200. Therefore, even if the external liquid seeps into the second mounting cavity 33 along the extension section 21 of the lock beam 200, the seeped liquid is not easy to damage the control circuit board 500 in the third mounting cavity 313.

[0071] For example, the third mounting cavity 313 can be arranged in the first inner shell 31.

[0072] In some embodiments, the first inner shell 31 is further provided with a wiring slot 315, the wiring slot 315 is located on the side of the third mounting cavity 313, one end of the wiring slot 315 is communicated with the second mounting cavity 33, and the other end of the wiring slot 315 is communicated with the third mounting cavity 313. Further, the electrical connection between the control circuit board 500 and the locking mechanism 400 can be realized by the cable partially located in the wiring slot 315.

[0073] It can also be understood that the sealing glue can be arranged in the wiring slot 315 to limit the liquid in the second mounting cavity 33 from seeping into the third mounting cavity 313, so as to prevent the control circuit board 500 from being damaged. Alternatively, the sealing glue can not be arranged in the wiring slot 315, and the embodiments of the present application do not limit this.

[0074] In some embodiments, the inner shell assembly 300 can be provided with a fifth mounting cavity 36, and the extension section is mounted in the fifth mounting cavity 36. Further, after the liquid outside the outer shell 100 seeps into the outer shell 100 along the extension section 21, the liquid can be accumulated in the fifth mounting cavity 36, and is not easy to seep into the third mounting cavity 313 through the second mounting cavity 33 to damage the control circuit board 500.

[0075] The fifth mounting cavity 36 can be extended from the second inner shell 32 to the first inner shell 31, or can be arranged only in the second inner shell 32, and the embodiments of the present application do not limit this.

[0076] Please continue to refer to Figure 5In some embodiments, the lock beam 200 further comprises a lock cap 23 arranged at one end of the extension section 21 outside the housing 100. Correspondingly, the outer surface of the housing 100 is provided with a first annular protrusion 15 arranged around the extension section 21 and located inside the lock cap 23, so that the cooperation of the first annular protrusion 15 and the lock cap 23 can prevent external liquid from entering the housing through the opening where the housing 100 and the extension section 21 are matched.

[0077] The lock cap 23 and the extension section 21 can be welded and fixed around to improve the waterproof effect.

[0078] The first annular protrusion 15 can abut against the lock cap 23 at the side end face away from the housing body.

[0079] The inner circumferential surface of the first sealing ring 24 can be attached to the extension section 21, and the side end edge of the first sealing ring 24 close to the first annular protrusion 15 is provided with a second annular protrusion 241 abutting against the first annular protrusion 15. The side end edge of the first sealing ring 24 away from the first annular protrusion 15 is provided with a third annular protrusion 242 abutting against the lock cap 23.

[0080] Please continue to refer to Figure 6 and Figure 7 In some embodiments, the locking mechanism 400 comprises a conversion piece 41 and a motor 42. The conversion piece 41 can be rotated to an unlocking state and a locking state to unlock or lock the extension section 21. That is, the conversion piece 41 can be rotated to the unlocking state to unlock the extension section 21, and the conversion piece 41 can be rotated to the locking state to lock the extension section 21.

[0081] The motor 42 is in transmission connection with the conversion piece 41 to drive the conversion piece 41 to rotate to the locking state. In turn, the automatic unlocking and locking of the lock can be realized by the motor 42 to improve the user experience.

[0082] In some embodiments, the locking mechanism 400 further comprises a torsional spring 43 for driving the conversion piece 41 to rotate to the locking state. In turn, the motor 42 only needs to drive the conversion piece 41 to unlock the extension section 21 of the lock beam 200, and the torsional spring 43 drives the conversion piece 41 to lock the extension section 21 of the lock beam 200, which can reduce the power consumption of the motor 42.

[0083] In some embodiments, the locking mechanism 400 further comprises a second transmission member 44 in transmission connection with the motor 42, so that the motor 42 can drive the second transmission member 44 to rotate. The outer circumferential side of the second transmission member 44 is provided with three outer protrusions 441, and the second transmission member 44 can be rotated to intermittently push the conversion piece 41 to rotate to the unlocking state through the three outer protrusions 441.

[0084] Further, the motor 42 only needs to drive the second transmission member 44 to rotate in one direction continuously. For example, the motor 42 drives the second transmission member 44 to rotate forward by 120° once, and the second transmission member 44 drives the conversion member 41 to rotate to the unlocking state once, and then the torsional spring 43 drives the conversion member 41 to rotate to the locking state to reset before the motor 42 drives the second transmission member 44 to rotate forward by 120° again. Thus, the motor 42 only needs to rotate forward continuously to realize the unlocking and locking of the lock beam 200 in cooperation with the torsional spring 43, so that the driving of the motor 42 is simpler.

[0085] It can also be understood that if the number of the outer protrusions 441 is less than three, the motor 42 needs to rotate by a larger angle to complete the unlocking operation, and thus the power consumption of the motor 42 rises. If the number of the outer protrusions 441 is greater than three, the groove depth of the second groove 411 needs to be reduced accordingly, and thus the outer protrusions 441 and the conversion member 41 are prone to slip.

[0086] Of course, in some other embodiments, the number of the outer protrusions 441 can be one, two, four, five, six or even ten, which is not limited in the embodiments of the present application.

[0087] In some embodiments, the outer periphery of the conversion member 41 is provided with the second groove 411, and the outer protrusion 441 includes a convex corner. The second transmission member 44 can rotate to the convex corner to abut against the groove wall of the second groove 411 to push the conversion member 41 to rotate.

[0088] Therefore, when the second transmission member 44 rotates by 120°, the second transmission member 44 first rotates to the convex corner to enter the second groove 411 to abut against the groove wall of the second groove 411, so as to push the conversion member 41 to rotate to the unlocking state. Then, with the continuous rotation of the second transmission member 44, the convex corner exits the second groove 411 to separate from the conversion member 41, so that the conversion member 41 is driven by the torsional spring 43 to rotate to the locking state.

[0089] In some embodiments, the rotation axis of the second transmission member 44 and the rotation axis of the conversion member 41 are substantially parallel.

[0090] In some embodiments, the inner housing assembly 300 is further provided with a detection component 35, which is used to detect the rotation angle of the second transmission member 44.

[0091] For example, the detection component 35 is used to cooperate with the convex corner to detect the rotation angle of the second transmission member 44. The detection component 35 can include a photoelectric sensor, a microswitch, a Hall sensor or the like, which is not limited in the embodiments of the present application.

[0092] Please continue to refer to Figure 8In some embodiments, the locking mechanism 400 further comprises a mechanical lock cylinder 46. The mechanical lock cylinder 46 is in transmission connection with the conversion piece 41 for driving the conversion piece 41 to rotate to the unlocking state. In turn, the user can select to realize the automatic unlocking of the lock by the motor 42 or to realize the manual unlocking of the lock by the mechanical lock cylinder 46 according to the actual situation, so as to meet the more use requirements of the user.

[0093] For example, the conversion piece 41 further comprises a first recess 412 arranged on the outer periphery thereof. The locking mechanism 400 further comprises a first transmission member 45. The first transmission member 45 comprises a bottom disc 451 and a protrusion 452 connected to the bottom disc 451. The mechanical lock cylinder 46 is used for driving the bottom disc 451 to rotate, so that the protrusion 452 pushes the groove wall of the first recess 412, thereby driving the conversion piece 41 to rotate to the unlocking state.

[0094] For example, the protrusion 452 can be arranged around the rotation axis of the bottom disc 451. The rotation axis of the bottom disc 451 can be substantially parallel to the rotation axis of the conversion piece 41.

[0095] In some embodiments, the first transmission member 45 further comprises a first connecting rod 453 arranged on the side of the bottom disc 451 away from the protrusion 452. The first connecting rod 453 is arranged eccentrically about the rotation axis of the bottom disc 451. Correspondingly, the mechanical lock cylinder 46 is provided with a second connecting rod 461. The mechanical lock cylinder 46 is used for driving the second connecting rod 461 to rotate about a second axis perpendicular to the rotation axis of the bottom disc 451, and the second connecting rod 461 is in abutment with the first connecting rod 453.

[0096] Therefore, in the process of the mechanical lock cylinder 46 rotating in the positive direction, the second connecting rod 461 can drive the first connecting rod 453 to rotate, thereby driving the bottom disc 451 to rotate. The rotation of the bottom disc 451 can drive the conversion piece 41 to rotate to the unlocking state through the protrusion 452.

[0097] In some embodiments, the first recess 412 and the second recess 411 can be arranged on opposite sides of the conversion piece 41.

[0098] Therefore, the mechanical lock cylinder 46 and the motor 42 are also arranged on opposite sides of the conversion piece 41. Then, in the process of production, whether to assemble the mechanical lock cylinder 46 can be selected according to the actual requirements.

[0099] Please continue to refer to Figure 9 and Figure 10In some embodiments, the locking mechanism 400 further comprises a locking member 47, and the outer circumferential side of the conversion member 41 is provided with a notch 413. When the conversion member 41 is in the locked state, the conversion member 41 blocks the movement of the locking member 47 away from the extension section 21, so that the locking mechanism 400 locks the extension section 21. When the conversion member 41 is in the unlocked state, the conversion member 41 allows the movement of the locking member 47 away from the extension section 21 to be partially located in the notch 413, so that the locking mechanism 400 unlocks the extension section 21.

[0100] In some embodiments, the inner housing assembly 300 is provided with a track groove 321, and the locking member 47 is movably installed in the track groove 321, so that the locking member 47 can move towards or away from the extension section 21.

[0101] For example, the locking member 47 can comprise a steel ball, and the corresponding track groove 321 can be a steel ball groove. Further, by forming a rolling fit between the steel ball and the track groove 321, the movement of the locking member 47 can be smoother.

[0102] In some embodiments, the extension section 21 is further provided with a spring 22 for driving the extension section 21 to move towards the outside of the outer housing 100.

[0103] The extension section 21 is provided with a hole 211 corresponding to the track groove 321. The locking member 47 can move towards the extension section 21 to be clamped in the hole 211, so as to limit the movement of the extension section 21 towards the outside of the outer housing 100. In addition, the locking member 47 can move to be partially located in the notch 413, so that the locking member 47 exits the hole 211, thereby allowing the spring 22 to drive the extension section 21 to move towards the outside of the outer housing 100, so as to achieve the unlocking of the locking beam 200.

[0104] In some embodiments, the opening edge of the notch 413 comprises a first edge 415 and a second edge 416 which are spaced apart along the circumference of the conversion member 41. When the conversion member 41 is in the locked state, the first edge 415 is located on the side of the second edge 416 close to the track groove 321. The conversion member 41 can be rotated from the unlocked state to the intermediate state, so that the first edge 415 is tangent to the center line of the track groove 321. The maximum angle of rotation of the conversion member 41 from the intermediate state to the locked state is 25° to 35°.

[0105] Further, when the motor 42 drives the conversion member 41 to rotate from the locked state to the unlocked state, the rotation angle required by the conversion member 41 is also smaller, so that the power consumption of the motor 42 can be reduced. In addition, it can also avoid the vibration of the lock caused by the rotation angle of the conversion member 41 being too small when the motor 42 drives the conversion member 41 to rotate from the locked state to the unlocked state, which may accidentally cause the conversion member 41 to rotate to the unlocked state.

[0106] Exemplarily, the maximum angle of the conversion piece 41 rotating from the intermediate state to the locked state is 25°, 27°, 28°, 29.5°, 30°, 32°, 33.4°, 34° or 35°, which is not limited in the embodiments of the present application.

[0107] In some embodiments, the conversion piece 41 is provided with a first limiting structure 322, and the shell 100 is provided with a second limiting structure 417, the first limiting structure 322 and the second limiting structure 417 cooperate to limit the rotation angle of the conversion piece 41.

[0108] Further, the rotation angle of the conversion piece 41 rotating towards the locked state can be avoided to be too large, so as to ensure the rotation precision of the conversion piece 41.

[0109] Exemplarily, one of the first limiting structure 322 and the second limiting structure 417 comprises a limiting slot, and the other of the first limiting structure 322 and the second limiting structure 417 comprises a limiting protrusion 452.

[0110] Please continue to refer to Figure 11 In some embodiments, the lock further comprises a radio frequency antenna 600, which is used to communicate with an external device to supply power to the lock. For example, the radio frequency antenna 600 can be electrically connected with the control circuit board 500 to supply power to the motor 42 through the control circuit board 500.

[0111] The radio frequency antenna 600 can comprise a QI coil, an NFC (Near Field Communication) antenna and a Bluetooth antenna, which are not limited in the embodiments of the present application.

[0112] In some embodiments, the radio frequency antenna 600 can also be used to transmit information such as an unlocking command.

[0113] In some embodiments, the lock further comprises a base 700, which is mounted to the shell 100 to close the first mounting port 14, and the radio frequency antenna 600 is arranged in the base 700.

[0114] Further, by arranging the radio frequency antenna 600 in the base 700, the radio frequency antenna 600 can be closer to the outside of the lock, so that the user can attach a mobile phone or other external device to the base 700 to communicate with the radio frequency antenna 600, and then the external device can transmit energy and information with the radio frequency antenna 600.

[0115] In some embodiments, the base 700 is made of plastic, and the outer shell 100 and / or the inner shell assembly 300 are made of metal. In this way, the base 700 made of plastic does not shield the radio frequency signals of the radio frequency antenna 600. In addition, the outer shell 100 and the inner shell assembly 300 made of metal have higher strength, so that even if the base 700 is violently destroyed, the outer shell 100 and the inner shell assembly 300 can still have good anti-disassembly effect, thereby improving the security of the lock.

[0116] In some embodiments, the distance between the radio frequency antenna 600 and the outer shell 100 is greater than or equal to 8 mm. In this way, the outer shell 100 made of metal does not interfere with the radio frequency signals of the radio frequency antenna 600.

[0117] For example, the distance between the radio frequency antenna 600 and the outer shell 100 is 8 mm, 8.9 mm, 9 mm, 11 mm, 13 mm, 14.2 mm, or 15 mm, etc. The embodiments of the present application do not limit this.

[0118] In some embodiments, the distance between the radio frequency antenna 600 and the inner shell assembly 300 is greater than or equal to 8 mm. In this way, the inner shell assembly 300 made of metal does not interfere with the radio frequency signals of the radio frequency antenna 600.

[0119] For example, the distance between the radio frequency antenna 600 and the inner shell assembly 300 is 8 mm, 8.9 mm, 9 mm, 11 mm, 13 mm, 14.2 mm, or 15 mm, etc. The embodiments of the present application do not limit this.

[0120] The embodiments of the present application are described in detail above, and the principles and implementation modes of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, the specific implementation modes and application ranges will be changed according to the idea of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A lock, characterized in that The lock comprises: a housing comprising a first top wall and a first ring wall, the first ring wall being arranged around the first top wall to form a first mounting cavity between the first ring wall and the first top wall, the first mounting cavity forming a first mounting opening away from one side of the first top wall; a lock beam comprising an extension section movably mounted in the housing; an inner housing assembly mounted in the first mounting cavity via the first mounting opening; and a locking mechanism for locking or unlocking the extension section, the locking mechanism being fixedly arranged in the inner housing assembly, and the locking mechanism being isolated from the first mounting opening by the inner housing assembly to limit the locking mechanism and the inner housing assembly from being disconnected from the side where the first mounting opening is located. The inner housing assembly comprises a first inner housing and a second inner housing connected by a first connecting structure, and a second mounting cavity is formed between the first inner housing and the second inner housing, and the locking mechanism is at least partially fixedly arranged in the second mounting cavity.

2. The lock of claim 1, wherein The first inner housing is an integral part and blocks the side of the second mounting cavity facing the first mounting opening, and the first inner housing also shields the first connecting structure to limit the first inner housing and the second inner housing from being disconnected from the side where the first mounting opening is located. The inner housing assembly further comprises a third mounting cavity, and a third mounting opening is arranged on the side of the third mounting cavity facing the first ring wall; the lock further comprises a control circuit board mounted in the third mounting cavity via the third mounting opening, and the control circuit board is electrically connected to the locking mechanism to control the locking mechanism.

3. The lock of claim 2, wherein The locking mechanism comprises:

4. The lock of any of claims 1 to 3, wherein, a conversion piece capable of rotating to an unlocking state and a locking state to unlock or lock the extension section; and an electric motor in transmission connection with the conversion piece to drive the conversion piece to rotate to the unlocking state. The locking mechanism further comprises a second transmission piece in transmission connection with the electric motor to enable the electric motor to drive the second transmission piece to rotate, and three outward protrusions are arranged on the outer circumferential side of the second transmission piece, and the second transmission piece is capable of rotating to intermittently push the conversion piece to rotate to the unlocking state through the three outward protrusions; and / or 5. The lock of claim 4, wherein, the locking mechanism further comprises a mechanical lock cylinder in transmission connection with the conversion piece to drive the conversion piece to rotate to the unlocking state; and / or the locking mechanism further comprises a torsional spring for driving the conversion piece to rotate to the locking state. The lock further comprises a radio frequency antenna for communicating with an external device to supply power to the lock.

6. The lock of claim 4, wherein The lock further comprises a base mounted on the housing to close the first mounting opening, and the radio frequency antenna is arranged in the base; 7. The lock of claim 6, wherein, wherein the base is a plastic part, and the housing and / or the inner housing assembly are metal parts; the distance between the radio frequency antenna and the housing and the distance between the radio frequency antenna and the inner housing assembly are greater than or equal to 8 mm. ​ 8. The lock of claim 6, wherein, The locking mechanism further comprises a locking piece, and the outer circumferential side of the conversion piece is provided with a notch; When the conversion piece is in the locked state, the conversion piece blocks the movement of the locking piece away from the extension section, so that the locking mechanism locks the extension section; When the conversion piece is in the unlocked state, the conversion piece allows the locking piece to move away from the extension section to be partially located in the notch, so that the locking mechanism unlocks the extension section.

9. The lock of claim 8, wherein, The inner shell assembly is provided with a track groove, and the locking piece is movably installed in the track groove, so that the locking piece can move towards or away from the extension section; The opening edge of the notch comprises a first edge and a second edge which are spaced apart along the circumference of the conversion piece, and when the conversion piece is in the locked state, the first edge is located on the side of the second edge close to the track groove; The conversion piece can rotate from the unlocked state to an intermediate state towards the locked state, so that the first edge is tangent to the center line of the track groove; The maximum angle of rotation of the conversion piece from the intermediate state to the locked state is 25° to 35°.

10. The lock of claim 9, wherein, The conversion piece is provided with a first limiting structure, and the inner shell is provided with a second limiting structure, and the first limiting structure cooperates with the second limiting structure to limit the rotation angle of the conversion piece.

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