Automatic back locking structure and intelligent lock

Abstract

The utility model discloses an automatic back locking structure and an intelligent lock, and relates to the field of locks.The automatic back locking structure comprises a lock cylinder mechanism inserted between two door plates; the lock cylinder mechanism comprises a lock cylinder shell inserted between the two door plates, a spring bolt is movably inserted in one side of the lock cylinder shell in a penetrating mode, a miniature pressure sensor is fixed in an open groove in one side of the spring bolt, and a pressing block for extruding the miniature pressure sensor is rotationally arranged in the open groove in one side of the spring bolt. The counter locking mechanism comprises a counter locking pin which is movably inserted into the lock cylinder shell and located on one side of the spring bolt, a lead screw is arranged at the end, located in the lock cylinder shell, of the counter locking pin in a threaded mode, and a second gear is fixed to the end, away from the counter locking pin, of the lead screw; the gear motor drives the lead screw to rotate so as to drive the counter lock pin to extend out of the lock cylinder shell and be inserted into the hole of the door frame, so that counter locking of the entrance door is achieved, indoor safety is effectively improved, and a user does not need to worry about forgetting to lock the entrance door.

Description

Technical Field

[0001] The present application relates to the field of locks, and in particular to an automatic anti-locking structure and a smart lock. Background Art

[0002] Electronic room door locks are smart locks. They are the perfect crystallization of computer information technology, electronic technology, mechanical technology and modern hardware technology. Using electronic room door locks is convenient, fast and accurate. With the popularization of science and technology and the development of smart homes, more and more people are beginning to choose electronic locks.

[0003] For example, the electronic room door lock electronic anti-lock switch automatic release structure of publication number CN208236107U still has the following shortcomings in actual use;

[0004] After the door is closed, when it is needed to be locked, it is still necessary to manually rotate the knob to insert the locking pin into the door frame to achieve the locking effect. However, in daily use, people often forget to lock the door, and the above-mentioned lock does not have the ability to automatically lock after the door is closed, which reduces living safety. Utility Model Content

[0005] In order to improve the problem that the door cannot be automatically locked after closing, the present application provides an automatic locking structure and a smart lock.

[0006] The automatic anti-locking structure and smart lock provided by the present application adopt the following technical solutions:

[0007] An automatic anti-locking structure and a smart lock, comprising a lock core mechanism inserted between two door panels;

[0008] The lock core mechanism comprises a lock core housing inserted between two door panels, a lock tongue movably inserted into one side of the lock core housing, a micro pressure sensor fixed in a slot on one side of the lock tongue, and a pressure block for squeezing the micro pressure sensor rotatably arranged in the slot on one side of the lock tongue;

[0009] The anti-locking mechanism comprises an anti-locking pin movably inserted in the lock core housing on one side of the lock tongue, a screw is threadedly arranged at one end of the anti-locking pin located inside the lock core housing, a gear 2 is fixed to the end of the screw away from the anti-locking pin, a telescopic tube is movably inserted in the middle of the inner cavity of the gear 2, a mounting seat fixedly connected to the inner wall of the lock core housing is fixed at one end of the telescopic tube away from the gear 2, and a reduction motor for driving the gear 2 to rotate is fixed to one side of the mounting seat;

[0010] The toggle mechanism is used to push the anti-locking pin to move.

[0011] By adopting the above technical solution, the anti-locking mechanism can make the entrance door lock automatically after closing, eliminating the need for the user to manually rotate it again, and displacement sensors can be provided on both handles for identification and unlocking in conjunction with a reduction motor, avoiding the situation where the user is unable to use the toggle mechanism from the outside, resulting in the entrance door being unable to open.

[0012] Preferably, the anti-locking mechanism further comprises a limiting frame movably sleeved on the surface of the anti-locking pin and fixedly connected to the inner wall of the lock core housing, and a movable groove is formed on the lower side of one end of the anti-locking pin located inside the lock core housing.

[0013] By adopting the above technical solution, the setting of the limit frame can prevent the anti-locking pin from rotating, thereby achieving the limiting effect, and the setting of the movable groove can allow the connecting rod to rotate.

[0014] Preferably, a limiting frame fixedly connected to the inner wall of the lock core housing is movably inserted into the surface of the lead screw at one end of the telescopic tube, and springs are fixed at both ends of the inner cavity of the telescopic tube.

[0015] By adopting the above technical solution, the setting of the spring can be used when the anti-locking pin is manually unlocked, and then when the anti-locking pin is recovered, it can be re-engaged with the hollow of the door frame under the reaction force to limit the position.

[0016] Preferably, the output shaft of the reduction motor is fixed with gear one meshing with gear two, the distance between the end of gear one and the limiting frame is equal to the distance at which the anti-locking pin head is recovered to the inside of the lock core shell and is flush with the surface of the lock core shell, and the reduction motor is adapted to the micro pressure sensor.

[0017] By adopting the above technical solution, the micro pressure sensor can control the working state of the reduction motor, thereby enabling the reduction motor to drive the anti-locking pin to move through the lead screw, thereby realizing the function of automatic anti-locking.

[0018] Preferably, the toggle mechanism includes a fixed seat fixed to the inner wall of the lock core shell, a connecting rod is rotatably provided on the surface of the fixed seat, one end of the connecting rod is rotatably provided in the movable groove, and the other end is rotatably provided with an L-shaped rod fixed to the T-shaped column.

[0019] By adopting the above technical solution, the L-shaped rod drives the connecting rod and then drives the anti-locking pin to move, thereby achieving a linkage effect.

[0020] Preferably, the lock core mechanism comprises a face cover fixedly mounted on one side of the lock core housing, and a rectangular groove for the T-shaped column to movably penetrate and laterally move is provided at a position on the surface of the face cover corresponding to the T-shaped column.

[0021] By adopting the above technical solution, the rectangular groove limits the movement of the T-shaped column to prevent it from shaking.

[0022] Preferably, a wire running through the middle of the lock tongue is fixed to the connection terminal of the micro pressure sensor.

[0023] By adopting the above technical solution, the micro pressure sensor can detect whether the entrance door is closed, so that the anti-locking pin can be automatically extended and the entrance door can be locked.

[0024] A smart lock includes the above-mentioned automatic anti-locking structure, and operation smart panels are fixed on both sides of the two door panels at positions corresponding to the lock core mechanism. The surface of the operation smart panel located indoors is provided with a strip groove for T-shaped columns to movably insert at a position opposite to the rectangular groove, and damping is arranged between the inner wall of the strip groove and the rod portion of the T-shaped column.

[0025] By adopting the above technical solution, the smart panel can be installed to realize unlocking by only entering a password, fingerprint, face, etc. At the same time, the strip groove can slow down the movement of the T-shaped column, making it easier for users to open the entrance door.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. By using the cooperation of the micro pressure sensor and the anti-locking mechanism, the user can lock the door after closing it, which effectively improves indoor safety and prevents danger caused by the user forgetting to lock the door;

[0028] 2. The toggle mechanism can be used to unlock the lock, so that the smart lock can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall axial side of the smart lock of this application;

[0030] Figure 2 This is a schematic diagram of the lock core mechanism of the present application;

[0031] Figure 3 This is a schematic diagram of the internal structure of the lock core mechanism of this application;

[0032] Figure 4 It is a cross-sectional schematic diagram of the anti-locking mechanism of the present application;

[0033] Figure 5 This is a schematic diagram of the micro pressure sensor of this application.

[0034] Reference numerals: 1. door panel; 2. operation smart panel;

[0035] 3. Lock core mechanism; 31. Lock core housing; 32. Surface cover; 33. Rectangular groove; 34. Lock tongue; 35. Pressure block; 36. Micro pressure sensor;

[0036] 4. toggle mechanism; 41. T-shaped column; 42. L-shaped rod; 43. fixed seat; 44. connecting rod;

[0037] 5. Anti-locking mechanism; 51. Mounting seat; 52. Speed ​​reduction motor; 53. Gear 1; 54. Telescopic tube; 55. Spring; 56. Gear 2; 57. Limiting frame; 58. Lead screw; 59. Anti-locking pin; 591. Limiting frame;

[0038] 6. Activity slot. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1 —5 further describes this application in detail.

[0040] The embodiments of the present application disclose an automatic anti-locking structure and a smart lock.

[0041] Example 1

[0042] Reference Figure 1 An automatic anti-locking structure includes a lock core mechanism 3 detachably inserted between two door panels 1, and the two door panels 1 are two side walls of a door body.

[0043] Reference Figure 1-3 The lock core mechanism 3 includes a lock core shell 31 inserted into the installation groove between the two door panels 1. The installation method of the lock core mechanism 3 is the same as the existing installation method, thereby realizing the basic function of the door lock. A rectangular hole is opened on one side of the lock core shell 31, and a lock tongue 34 for locking is movably inserted in the rectangular hole. A micro pressure sensor 36 is fixed to the inner wall of the slot on one side of the lock tongue 34, and the pressure-receiving end of the micro pressure sensor 36 faces outward. A fixing column is rotatably arranged in the slot on one side of the lock tongue 34, and the fixing column movably passes through one end of the pressure block 35. The rotation of the pressure block 35 can realize the micro pressure sensor 3 6 is squeezed so that the micro pressure sensor 36 generates a signal and outputs it. The lock core mechanism 3 includes a cover 32 fixed to one side of the lock core shell 31 by a plurality of screws. The surface of the cover 32 and the lock core shell 31 are provided with a square opening for inserting the square core and a through hole, and then the two operation smart panels 2 are fixed to the door body by long screws penetrating the through holes. A rectangular groove 33 is provided on the surface of the cover 32 at a position corresponding to the T-shaped column 41. The T-shaped column 41 is movably inserted and moved laterally in the rectangular groove 33. The inner wall of the rectangular groove 33 contacts the surface of the rod of the T-shaped column 41 to achieve a limiting effect.

[0044] Through the above arrangement, when the entrance door and the door frame are closed, one end of the inclined surface of the lock tongue 34 contacts the door frame and slides, which pushes the lock tongue 34 to move toward the inside of the lock core shell 31. At this time, under the limit of the door frame, the pressure block 35 is pushed to rotate on the fixed column and squeeze the micro pressure sensor 36. The micro pressure sensor 36 generates a pressure signal and transmits it to the microprocessor set inside the lock core shell 31 through wires. After processing by the microprocessor, the signal is transmitted to the controller through wires.

[0045] The connection terminal of the micro pressure sensor 36 is fixed with an electric wire, which passes through the middle of the lock tongue 34 and is electrically connected to the microprocessor. The microprocessor, controller, and micro pressure sensor 36 are integrated inside the lock core housing 31, which are all prior art and their structural principles are not described in detail.

[0046] Reference Figure 3 , 4 The anti-locking mechanism 5 includes an anti-locking pin 59 movably inserted on the surface of the lock core shell 31, the anti-locking pin 59 is located on one side of the lock tongue 34, and an internal thread groove is provided at one end of the anti-locking pin 59 located inside the lock core shell 31, and a lead screw 58 is provided on the internal thread of the internal thread groove. The middle part of the lead screw 58 away from the anti-locking pin 59 is fixed to the middle part of the gear 2 56, and the length of the gear 2 56 is greater than the length of the anti-locking pin 59 extending out of the lock core shell 31. A circular hole is provided in the middle of the inner cavity of the gear 2 56, and a telescopic tube 54 is movably inserted in the circular hole. The surface of one end of the telescopic tube 54 abuts against the inner wall of the circular hole and can rotate. A mounting seat 51 is fixed at one end of the telescopic tube 54 away from the gear 2 56, and the mounting seat 51 The fixed end is fixedly connected to the inner wall of the lock cylinder shell 31, and one side of the mounting seat 51 is fixed to the mounting end of the reduction motor 52. The output shaft of the reduction motor 52 is fixed with a gear 1 53, and the gear 1 53 is meshed with the gear 2 56 to realize power transmission. The distance between the end of the gear 1 53 and the limiting frame 57 is equal to the distance at which the protruding head of the anti-lock pin 59 is recovered to the inside of the lock cylinder shell 31 and is flush with the surface of the lock cylinder shell 31. When the protruding head of the anti-lock pin 59 is completely recovered to the inside of the lock cylinder shell 31, the gear 1 53 slides on the surface of the gear 2 56 to the other end and does not separate. The micro pressure sensor 36 can control the working state of the reduction motor 52 through the microprocessor.

[0047] Through the above arrangement, the microprocessor receives the signal from the micro pressure sensor 36 and energizes the reduction motor 52 to rotate through the controller. The output shaft of the reduction motor 52 drives the gear 1 53 to rotate and then drives the gear 2 56 to rotate. The gear 2 56 rotates on the surface of the telescopic tube 54 and drives the lead screw 58 to rotate. The rotation of the lead screw 58 drives the anti-locking pin 59 to move in the limit frame 591 and then move out from the inside of the lock core shell 31 and insert into the hole of the door frame, thereby realizing automatic anti-locking of the entrance door.

[0048] Reference Figure 3 , 4The anti-lock mechanism 5 also includes a limit frame 591 movably sleeved on the surface of the anti-lock pin 59, a plane is provided at one end of the surface of the anti-lock pin 59, and a slot hole is also opened at one end of the limit frame 591 with the anti-lock pin 59 having the plane end, so that the anti-lock pin 59 is prevented from rotating by the setting of the plane, the limit frame 591 is fixedly connected to the inner wall of the lock core shell 31, and the movable groove 6 is opened at the lower side of the end of the anti-lock pin 59 located inside the lock core shell 31, and the surface of the lead screw 58 located at one end of the telescopic tube 54 is movably interspersed with a limit frame 57, and the contact surface of the lead screw 58 and the limit frame 57 for rotation is set to a smooth surface, and the diameter of the smooth surface is the same as the diameter of the threaded end of the lead screw 58, so that the lead screw 58 can slide more smoothly on the limit frame 57, and the limit frame 57 is fixedly connected to the inner wall of the lock core shell 31, and the two ends of the inner cavity of the telescopic tube 54 are respectively abutted against the two ends of the spring 55.

[0049] Through the above arrangement, the anti-locking pin 59 moves on the limit frame 591 during movement, making the movement of the anti-locking pin 59 more stable and playing a supporting role. The rotation of the lead screw 58 can drive the anti-locking pin 59 to move horizontally, thereby realizing the functions of anti-locking and unlocking.

[0050] Reference Figure 3 , 4 The toggle mechanism 4 is used to push the anti-locking pin 59 to move; the toggle mechanism 4 includes a fixed seat 43 fixed to the inner wall of the lock core shell 31 on one side of the anti-locking pin 59, and a rotating shaft is fixed on the surface of the fixed seat 43. The rotating shaft and the connecting rod 44 are movably penetrated at two-thirds of the way. One end of the connecting rod 44 is rotatably set in the movable groove 6 and limited. The connecting rod 44 is rotatably set with an L-shaped rod 42, and the end of the L-shaped rod 42 away from the connecting rod 44 is fixed to the rod end face of the T-shaped column 41.

[0051] Through the above arrangement, the unlocking action can be realized. Before the user presses the handle from indoors, he first pushes the head of the T-shaped column 41, and then the rod of the T-shaped column 41 slides in the strip groove and the rectangular groove 33, and at the same time drives the L-shaped rod 42 to move and drives the connecting rod 44 to rotate around the rotating shaft. Under the action of the lever, the other end of the connecting rod 44 is driven to move in the opposite direction. It should be noted that the connecting rod 44 is configured to be retractable, and then when one end of the connecting rod 44 drives the anti-locking pin 59 to move, it can be retracted so that the anti-locking pin 59 can move normally, thereby making the anti-locking pin 59 move normally. 9 moves to the inside of the lock core housing 31 and its end is flush with the end surface of the lock core housing 31 to achieve unlocking, thereby opening the entrance door. When the anti-lock pin 59 moves, the lead screw 58 drives the gear 2 56 to squeeze the telescopic tube 54. At this time, the lead screw 58 slides on the limiting frame 57, and the gear 1 53 slides in the tooth groove on the surface of the gear 2 56. At the same time, the telescopic tube 54 is squeezed and squeezes the spring 55 so that the anti-lock pin 59 can be manually adjusted and retracted. Under the reaction force of the spring 55, the anti-lock pin 59 can also be pushed to move in the opposite direction.

[0052] The reduction motor 52 may also be rotated in the reverse direction to retract the anti-lock pin 59 into the lock cylinder housing 31 via the lead screw 58 .

[0053] At the same time, displacement sensors can also be set on both handles. The signal of the displacement sensor also requires the input of a password to be executed. The displacement sensor detects the rotation of the handle and transmits the signal to the microprocessor through the wire, thereby causing the reduction motor 52 to rotate in the opposite direction and drive the anti-locking pin 59 to be recovered through the screw 58 to achieve unlocking.

[0054] The implementation principle of an automatic anti-locking structure in an embodiment of the present application is as follows: after the smart door lock is installed, when the user opens and closes the door, the pressure block 35 is squeezed, which in turn squeezes the micro pressure sensor 36 and transmits a signal to make the reduction motor 52 work. The reduction motor 52 drives the lead screw 58 to rotate, which in turn drives the anti-locking pin 59 to extend out of the lock core shell 31 and insert into the hole in the door frame, thereby realizing the anti-locking of the entrance door, effectively increasing the indoor safety, and there is no need to worry about the user forgetting to anti-lock the entrance door.

[0055] When the user needs to open the door, he pushes the T-shaped column 41 with one hand and drives the anti-lock pin 59 to move to the inside of the lock core housing 31 through the L-shaped rod 42 and the connecting rod 44, thereby releasing the anti-lock, and the user can open the entrance door normally.

[0056] Reference Figure 1 , a smart lock, including two door panels 1, both sides of which are fixed with operation smart panels 2 at positions corresponding to the lock core mechanism 3. The operation smart panel 2 is a prior art, and its structural principle is no longer repeated. A strip groove is provided on the surface of the indoor operation smart panel 2 at a position relative to the rectangular groove 33. The rod of the T-shaped column 41 is movably inserted into the strip groove and moves, and a flexible pad is provided at the contact position between the strip groove and the rod of the T-shaped column 41 to increase the friction between the strip groove and the T-shaped column 41. A damping is provided between the inner wall of the strip groove and the rod of the T-shaped column 41, so that the T-shaped column 41 moves slowly under the push of the reaction force of the spring 55, so that the anti-lock pin 59 moves into the lock core shell 31 and has a period of residence time for the user to open the door.

[0057] 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. An automatic anti-locking structure, characterized in that: It comprises a lock core mechanism (3) inserted between two door panels (1); The lock core mechanism (3) comprises a lock core housing (31) inserted between two door panels (1), a lock tongue (34) movably inserted into one side of the lock core housing (31), a micro pressure sensor (36) fixed in a slot on one side of the lock tongue (34), and a pressure block (35) rotatably arranged in the slot on one side of the lock tongue (34) for squeezing the micro pressure sensor (36); The anti-locking mechanism (5) comprises an anti-locking pin (59) movably inserted in the lock core housing (31) on one side of the lock tongue (34); a screw (58) is threadedly arranged at one end of the anti-locking pin (59) located inside the lock core housing (31); a gear 2 (56) is fixedly arranged at one end of the screw (58) away from the anti-locking pin (59); a telescopic tube (54) is movably inserted into the middle of the inner cavity of the gear 2 (56); a mounting seat (51) is fixedly arranged at one end of the telescopic tube (54) away from the gear 2 (56) and is fixedly connected to the inner wall of the lock core housing (31); a reduction motor (52) for driving the gear 2 (56) to rotate is fixedly arranged on one side of the mounting seat (51); The toggle mechanism (4) is used to push the anti-locking pin (59) to move.

2. The automatic anti-locking structure according to claim 1, characterized in that: The anti-locking mechanism (5) also includes a limiting frame (591) movably sleeved on the surface of the anti-locking pin (59) and fixedly connected to the inner wall of the lock core housing (31); the anti-locking pin (59) is located at the lower side of one end inside the lock core housing (31) and is provided with a movable groove (6).

3. The automatic anti-locking structure according to claim 2, characterized in that: The surface of the lead screw (58) located at one end of the telescopic tube (54) is movably interspersed with a limiting frame (57) fixedly connected to the inner wall of the lock core housing (31), and springs (55) are fixed at both ends of the inner cavity of the telescopic tube (54).

4. The automatic anti-locking structure according to claim 3, characterized in that: The output shaft of the reduction motor (52) is fixed with a gear one (53) meshing with a gear two (56); the distance between the end of the gear one (53) and the limiting frame (57) is equal to the distance at which the head of the anti-locking pin (59) is recovered to the inside of the lock core shell (31) and is flush with the surface of the lock core shell (31); and the reduction motor (52) is adapted to the micro pressure sensor (36).

5. The automatic anti-locking structure according to claim 1, characterized in that: The toggle mechanism (4) comprises a fixed seat (43) fixed to the inner wall of the lock core housing (31), a connecting rod (44) is rotatably arranged on the surface of the fixed seat (43), one end of the connecting rod (44) is rotatably arranged in the movable groove (6), and the other end is rotatably arranged with an L-shaped rod (42) fixed to the T-shaped column (41).

6. The automatic anti-locking structure according to claim 5, characterized in that: The lock core mechanism (3) comprises a cover (32) fixedly mounted on one side of the lock core housing (31), and a rectangular groove (33) for the T-shaped column (41) to be movably inserted and laterally moved is provided on the surface of the cover (32) at a position corresponding to the T-shaped column (41).

7. The automatic anti-locking structure according to claim 1, characterized in that: The connection terminal of the micro pressure sensor (36) is fixed with an electric wire which passes through the middle of the locking tongue (34).

8. A smart lock, characterized in that: It comprises the automatic anti-locking structure as claimed in any one of claims 1 to 7, an operation smart panel (2) is fixed on both sides of the two door panels (1) at positions corresponding to the lock core mechanism (3), a strip groove for a T-shaped column (41) to movably penetrate is provided on the surface of the operation smart panel (2) located indoors at a position relative to the rectangular groove (33), and a damper is provided between the inner wall of the strip groove and the rod of the T-shaped column (41).

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