Locking and unlocking mechanism of lock tongue and fully automatic lock with the same

Abstract

The present application discloses a locking and unlocking mechanism for a deadbolt and a fully automatic lock, wherein the locking and unlocking mechanism for the deadbolt comprises: a deadbolt assembly; a deadbolt assembly reset member; a limiter rotatably mounted on a lock housing assembly, having a first mating portion and a second mating portion, the limiter having a limited working position and an unlocking working position, wherein in the limited working position, the first mating portion is used to abut against a connecting block to restrict the deadbolt assembly from moving inwardly toward the lock housing assembly; in the unlocking working position, the deadbolt assembly can move inwardly toward the lock housing assembly, and the limiter can reset to the limited working position when not subjected to external force; an oblique deadbolt assembly comprising a connecting member and an oblique deadbolt rotatably mounted on the connecting member, the connecting member having a pressing portion; and an oblique deadbolt reset member, wherein when the oblique deadbolt of the oblique deadbolt assembly passes through the lock housing assembly, the pressing portion abuts against the second mating portion to drive the limiter to rotate to the unlocking working position. The locking and unlocking mechanism of the deadbolt of the present application has a simple locking and unlocking process and good reliability and stability.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent locks, and in particular to a locking and unlocking mechanism of a lock tongue and a fully automatic lock having the mechanism. Background Art

[0002] A smart lock is a composite lock that is different from a traditional mechanical lock. It is a combination of security, convenience, and advanced technology. In addition to being able to mechanically unlock or lock the lock with a key, it can also unlock and lock the lock with the help of an intelligent motor.

[0003] However, the lock tongue on the existing smart lock has a complex structure, and its locking and unlocking process is relatively cumbersome. In addition, there is also the problem of poor stability. Summary of the Invention

[0004] The present invention addresses the above-mentioned problems, overcomes at least one of the drawbacks, and provides a locking and unlocking mechanism for a lock tongue and a fully automatic lock having the mechanism.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A locking and unlocking mechanism for a lock tongue, provided on a lock housing assembly, comprising:

[0007] A lock tongue assembly is slidably arranged on the lock housing assembly, and the lock tongue assembly includes a connecting block and a lock tongue rotatably mounted on the connecting block;

[0008] A lock tongue assembly reset member is mounted on the lock housing assembly and is used to cooperate with the lock tongue assembly to allow the lock tongue of the lock tongue assembly to pass through the lock housing assembly;

[0009] A limit member is rotatably mounted on the lock housing assembly, the limit member having a first matching portion and a second matching portion, the limit member having a limiting working position and an unlocking working position, when the limit member is in the limiting working position, the first matching portion is used to abut against the connecting block to limit the movement of the lock tongue assembly toward the inside of the lock housing assembly, when the limit member is in the unlocking working position, the first matching portion no longer limits the connecting block, the lock tongue assembly can move toward the inside of the lock housing assembly, and the limit member can be reset to the limiting working position when not subjected to external force;

[0010] an oblique lock tongue assembly, slidably disposed on the lock housing assembly, the oblique lock tongue assembly comprising a connecting member and an oblique lock tongue rotatably mounted on the connecting member, the connecting member having a pressing portion, the pressing portion being configured to cooperate with the second matching portion;

[0011] The oblique lock tongue reset component is installed on the lock housing assembly and is used to cooperate with the oblique lock tongue assembly to allow the oblique tongue of the oblique lock tongue assembly to pass through the lock housing assembly. When the oblique tongue of the oblique lock tongue assembly passes through the lock housing assembly, the pressing portion abuts against the second matching portion, driving the limit member to rotate to the unlocking working position.

[0012] The locking and unlocking mechanism of the lock tongue of the present application has the following working principles: when the door is closed, the oblique lock tongue assembly is pressed into the lock housing assembly. At this time, the oblique lock tongue assembly does not limit the limiter, and the limiter is in the limit working position, that is, the first matching portion can abut against the connecting block, limiting the lock tongue assembly from moving inwardly toward the lock housing assembly, that is, the lock tongue is locked and cannot be retracted into the lock housing assembly. When the limiter is directly or indirectly triggered and rotated to the unlocking working position, the first matching portion no longer limits the connecting block, and the lock tongue assembly can move inwardly toward the lock housing assembly. In addition, even if the oblique lock tongue assembly is accidentally pressed (causing the oblique lock tongue to retract into the lock housing assembly) when the door is open, the oblique lock tongue assembly can be reset under the action of the oblique lock tongue reset member after release, automatically causing the limiter to rotate to the unlocking working position. This matching form greatly improves stability and is not afraid of misoperation.

[0013] The locking and unlocking mechanism of the lock tongue of the present application has a simple locking and unlocking process and good reliability and stability.

[0014] In one embodiment of the present invention, a limit member reset member is further included, which is installed on the lock housing assembly. The limit member reset member is used to cooperate with the limit member so that the limit member can be reset to the limit working position when not subjected to external force.

[0015] The limiter reset member can provide force to reset the limiter, thereby ensuring the reliable operation of the limiter.

[0016] In one embodiment of the present invention, the center of gravity of the limiting member is not on the rotation axis of the limiting member, and the limiting member can be reset to the limiting working position by its own gravity.

[0017] This approach can omit the limiting and restoring components, thus simplifying the structure.

[0018] In one embodiment of the present invention, the lock tongue assembly reset member is a spring or a torsion spring; the limit member reset member is a spring or a torsion spring; and the oblique lock tongue reset member is a spring or a torsion spring.

[0019] In one embodiment of the present invention, the first matching portion is a rotating shaft rotatably mounted on the limiting member.

[0020] The first matching portion is a rotating shaft, which can reduce friction and facilitate position switching of the first matching portion.

[0021] In one embodiment of the present invention, a first paddle movably provided on the lock housing assembly is further included, wherein the first paddle is used to abut and cooperate with the limiting member, and the limiting member can be rotated from the limiting working position to the unlocking working position through the movement of the first paddle.

[0022] The first paddle can be configured to be capable of transmission so that the unlocking operation can be transmitted from other positions.

[0023] In one embodiment of the present invention, the first paddle is slidably installed on the lock housing assembly. The first paddle has a first pressure-bearing portion and a second pressure-bearing portion. After the first pressure-bearing portion or the second pressure-bearing portion is pressed and moved, it can move toward the side of the limit member, so that the limit member switches to the unlocking working position.

[0024] The design of the first pressed portion and the second pressed portion enables the first paddle to be pressed to slide from two positions.

[0025] In one embodiment of the present invention, the lock tongue is a bidirectional lock tongue.

[0026] In one embodiment of the present invention, a micro switch is further included on the lock housing assembly, and the micro switch is used to cooperate with the limit member or the connecting member.

[0027] The present application also discloses a fully automatic lock, comprising the locking and unlocking mechanism of the lock tongue described above.

[0028] The beneficial effects of the present invention are as follows: the locking and unlocking mechanism of the lock tongue of the present application has a simple locking and unlocking process and good reliability and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a fully automatic lock according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 The structural diagram of the fully automatic lock from another perspective is shown;

[0031] Figure 3 for Figure 2 A schematic diagram of the buckle plate structure adapted to the lock housing assembly shown;

[0032] Figure 4 for Figure 1 A partial structural diagram of a fully automatic lock is shown;

[0033] Figure 5 for Figure 1 The structural diagram of the main lock bolt mechanism is shown;

[0034] Figure 6 for Figure 1 A partial structural diagram of a fully automatic lock is shown;

[0035] Figure 7 for Figure 1 A partial structural diagram of a fully automatic lock is shown;

[0036] Figure 8 for Figure 1 The structural diagram of the two-way lock bolt mechanism shown;

[0037] Figure 9 for Figure 1 The structural diagram of the two-way lock bolt mechanism shown;

[0038] Figure 10 for Figure 9 The structural diagram of the limiting member shown;

[0039] Figure 11 for Figure 9 The structural diagram of the oblique lock tongue connecting piece shown;

[0040] Figure 12 This is a diagram showing the state of a fully automatic lock after a door equipped with a fully automatic lock is opened;

[0041] Figure 13 This is a state diagram of the fully automatic lock when the lock tongue is fully retracted;

[0042] Figure 14 A state diagram of the fully automatic lock when the door equipped with the fully automatic lock is in the locked state;

[0043] Figure 15 This is a state diagram of the fully automatic lock when the door is unlocked using the mortise;

[0044] Figure 16 This is a schematic diagram of the lock housing assembly with some of its structure hidden;

[0045] Figure 17 It is a schematic diagram of the drive member, the main lock bolt block and the positioning assembly;

[0046] Figure 18 It is a schematic diagram of the main lock tongue and the main lock tongue shift block.

[0047] The reference numerals in the figures are:

[0048] 100. Fully automatic lock; 10. Lock housing assembly; 11. Main lock tongue through hole; 12. Second cylinder; 13. First limiting cylinder; 14. Two-way lock tongue through hole; 15. Oblique lock tongue through hole; 16. Safety lock tongue through hole; 17. First side surface; 18. Second side surface; 19. Sixth cylinder; 20. Main lock tongue; 21. Lock tongue portion; 22. Positioning portion; 221. First notch; 222. First sliding opening; 223. First side wall; 224. Second side wall; 2241. Buffer zone; 30. Locking and unlocking mechanism of lock tongue; 31. Lock tongue; 3211. Connecting block; 3212. Limiting member; 3213. First limiting plate; 3214. First matching portion; 3215. Second limiting plate; 3216. Second matching portion; 3217, limiting abutment portion; 3218, transmission abutment portion; 322, connecting member; 3221, pressing portion; 3222, spring connecting portion; 323, oblique lock tongue reset member; 324, lock tongue assembly reset member; 3242, limiting member reset member; 40, electric drive mechanism; 41, drive motor; 42, second bevel gear; 43, mechanical shift block; 431, slot; 441, through hole; 45, first reset elastic member; 46, first drive portion; 47, fourth column; 50, transmission mechanism; 51, first column; 52, rotating shaft; 53, transmission gear; 54, main lock tongue shift shaft; 55. Driving member; 551. First protrusion; 56. Main lock bolt shift block; 561. First transmission part; 562. Position limiting part; 57. Second shift piece; 571. Curved part; 60. First shift piece; 70. Safety lock bolt mechanism; 71. Safety lock tongue; 72. Safety lock positioning block; 73. Safety lock locking mechanism; 731. Safety lock dial block; 732. Second slot; 733. Safety lock transmission member; 74. Safety lock reset spring; 80. Oblique lock tongue; 90. Buckle plate; 91. Corresponding hole of main lock tongue; 92. Corresponding hole of two-way lock tongue; 93. Corresponding hole of safety tongue; 101. First pressure-bearing part; 102. Second pressure-bearing part; 103. Micro switch; 104. First matching block; 105. Second matching block; 106. Second driving part; 107. Positioning gear; 108. Positioning sensor; 109. Trigger part; 110. First bevel tooth; 111. First tooth; 112. Power-assist torsion spring; 113. Control board. DETAILED DESCRIPTION

[0049] The present invention will be described in detail below with reference to the accompanying drawings.

[0050] like Figures 1 to 18 As shown, a fully automatic lock 100 includes a lock housing assembly 10, on which is mounted:

[0051] Locking and unlocking mechanism 30 of the lock tongue;

[0052] The main lock tongue 20 is slidably disposed on the lock housing assembly 10 . The main lock tongue 20 includes a lock tongue portion 21 and a positioning portion 22 .

[0053] The transmission mechanism 50 is used to cooperate with the locking and unlocking mechanism 30 of the lock tongue to unlock the locking and unlocking mechanism 30 of the lock tongue, and is also used to cooperate with the main lock tongue 20 to make the lock tongue portion 21 pass through the lock housing assembly 10 or retract the lock housing assembly 10; the transmission mechanism 50 includes a driving member 55 and a main lock tongue shift block 56, the driving member 55 is rotatably mounted on the lock housing assembly 10, the main lock tongue shift block 56 is rotatably mounted on the lock housing assembly 10, and cooperates with the driving member 55, the driving member 55 The main lock tongue shift block 56 can be driven to rotate. The main lock tongue shift block 56 has a first transmission portion 561 that cooperates with the positioning portion 22 of the main lock tongue 20. When the main lock tongue shift block 56 rotates, the main lock tongue 20 can be driven to slide through the first transmission portion 561, so that the lock tongue portion 21 passes through the lock housing assembly 10 or retracts into the lock housing assembly 10. The driving member 55 also has a first protrusion 551. When the driving member 55 drives the main lock tongue shift block 56 to rotate and retracts the main lock tongue 20 into the lock housing assembly 10, the first protrusion 551 is used to cooperate with the locking and unlocking mechanism 30 of the lock tongue to unlock the locking and unlocking mechanism 30 of the lock tongue;

[0054] The electric drive mechanism 40 is used to drive the driving member 55 to rotate.

[0055] The electric drive mechanism 40 can drive the driving member 55 to rotate, thereby enabling the first transmission part 561 to rotate synchronously. Under the action of the first transmission part 561, the main lock tongue 20 can be driven to pass through the lock housing assembly 10 or retract into the lock housing assembly 10.

[0056] In the closed door state, in addition to opening the main lock tongue 20, the lock tongue locking and unlocking mechanism 30 also needs to be unlocked. In the present application, when the driving member 55 drives the main lock tongue shift block 56 to rotate and retract the main lock tongue 20 into the lock housing assembly 10, the first protrusion 551 of the driving member 55 can cooperate with the lock tongue locking and unlocking mechanism 30 to unlock the lock tongue locking and unlocking mechanism 30, thereby realizing the door opening operation. The transmission mechanism 50 of the present application has a simple and reliable structure.

[0057] like Figure 18As shown, in this embodiment, the positioning portion 22 has a first notch 221, and the first notch 221 has a first side wall 223 and a second side wall 224, and the first side wall 223 is close to the lock tongue portion 21, and the second side wall 224 is away from the lock tongue portion 21. The first transmission portion 561 cooperates with the first notch 221, and drives the main lock tongue 20 to slide through the first notch 221. When the lock tongue portion 21 of the main lock tongue 20 passes through the lock housing assembly 10, the first transmission portion 561 abuts against the first side wall 223. When the lock tongue portion 21 of the main lock tongue 20 retracts into the lock housing assembly 10, the first transmission portion 561 abuts against the first side wall 223. The transmission part 561 abuts against the second side wall 224; the second side wall 224 has a buffer zone 2241. After the lock tongue part 21 of the main lock tongue 20 is retracted into the lock housing assembly 10, the first transmission part 561 can continue to rotate in the buffer zone 2241; when the driving member 55 drives the first transmission part 561 to rotate, so that the lock tongue part 21 is retracted into the lock housing assembly 10, the driving member 55 continues to rotate. While the first transmission part 561 is idling in the buffer zone 2241, the first protrusion 551 cooperates with the locking and unlocking mechanism 30 of the lock tongue to unlock the locking and unlocking mechanism 30 of the lock tongue.

[0058] The buffer zone 2241 provided on the second side wall 224 is to provide time for the first protrusion 551 to cooperate with the locking and unlocking mechanism 30 of the lock tongue, thereby preventing the locking and unlocking mechanism 30 of the lock tongue from being unlocked when the main lock tongue 20 is unlocked, thereby effectively ensuring that the main lock tongue 20 can slide securely into the lock housing assembly 10. In actual use, the buffer zone 2241 can be an arcuate surface.

[0059] like Figure 17 As shown, in this embodiment, the main lock tongue shift block 56 and the driving member 55 have the same rotation axis, and there is an idle rotation structure between the main lock tongue shift block 56 and the driving member 55;

[0060] The idling structure includes a first mating block 104 provided on the main lock tongue block 56 and a second mating block 105 provided on the driving member 55. The main lock tongue block 56 can idlingly rotate relative to the driving member 55 at a set angle. When the driving member 55 rotates, causing the second mating block 105 to abut against the first mating block 104, the driving member 55 continues to rotate in the same direction, thereby driving the main lock tongue block 56 to rotate synchronously.

[0061] When the lock tongue portion 21 of the main lock tongue 20 passes through the lock housing assembly 10, the driving member 55 can be reset. When the main lock tongue shift block 56 is driven by other mechanisms, the main lock tongue shift block 56 can rotate idly relative to the driving member 55 and unlock the main lock tongue 20.

[0062] The fully automatic lock further comprises a mechanical unlocking mechanism, which is used to drive the main lock bolt shift block 56 to idle when the lock bolt portion 21 passes through the lock housing assembly 10 so as to retract the lock bolt portion 21 into the lock housing assembly 10 .

[0063] The idle rotation structure can prevent the main lock tongue shift block 56 from generating an acting force with the driving member 55 when the mechanical unlocking mechanism is working, thereby ensuring the reliable and smooth operation of the mechanical unlocking mechanism.

[0064] like Figure 16 As shown, in this embodiment, the mechanical unlocking mechanism includes:

[0065] The mechanical shift block 43 is rotatably mounted on the lock housing assembly 10 . The mechanical shift block 43 has a slot 431 and a first driving portion 46 and a second driving portion 106 .

[0066] The second paddle 57 is rotatably installed on the lock case assembly 10. One end of the second paddle 57 cooperates with the first driving part 46, and the other end cooperates with the main lock tongue paddle block 56. The mechanical paddle block 43 rotates, and the first driving part 46 can drive the second paddle 57 to rotate. The rotation of the second paddle 57 drives the main lock tongue paddle block 56 to rotate idly, thereby unlocking the main lock tongue 20. The second driving part 106 is used to cooperate with the locking and unlocking mechanism 30 of the lock tongue after the second paddle 57 drives the main lock tongue 20 to unlock the main lock tongue 20, so as to unlock the locking and unlocking mechanism 30 of the lock tongue.

[0067] “When the main lock tongue shifting block 56 unlocks the main lock tongue 20 ” means that the main lock tongue shifting block 56 drives the main lock tongue 20 to slide into the lock housing assembly 10 .

[0068] The slot 431 can be matched with a rod, such as a square rod, which can drive the mechanical shift block 43 to rotate. In actual use, the handle inside the door can drive the mechanical shift block 43 to rotate through the square rod. In actual use, the mechanical unlocking mechanism also includes a first reset elastic member 45.

[0069] like Figures 1 to 15 As shown, in this embodiment, the locking and unlocking mechanism 30 of the lock tongue includes:

[0070] The lock tongue assembly is slidably mounted on the lock housing assembly 10 , and includes a connecting block 3211 and a lock tongue 31 rotatably mounted on the connecting block 3211 ;

[0071] The lock tongue assembly reset member 324 is mounted on the lock housing assembly 10 and is used to cooperate with the lock tongue assembly to allow the lock tongue of the lock tongue assembly to pass through the lock housing assembly 10;

[0072] The limiting member 3212 is rotatably mounted on the lock housing assembly 10. The limiting member 3212 has a first mating portion 3214 and a second mating portion 3216. The limiting member 3212 has a limiting working position and an unlocking working position. When the limiting member 3212 is in the limiting working position, the mating portion is used to abut against the connecting block 3211, limiting the movement of the bolt assembly toward the inside of the lock housing assembly 10. When the limiting member 3212 is in the unlocking working position, the mating portion no longer limits the connecting block 3211, allowing the bolt assembly to move toward the inside of the lock housing assembly 10. The limiting member 3212 can be reset to the limiting working position when not subjected to external force.

[0073] The oblique lock bolt assembly is slidably mounted on the lock housing assembly 10. The lock bolt assembly includes a connecting member 322 and an oblique lock bolt 80 rotatably mounted on the connecting member 322. The connecting member 322 has a pressing portion 3221 configured to engage with the second engaging portion 3216.

[0074] The oblique lock bolt reset member 323 is installed on the lock housing assembly 10 and is used to cooperate with the oblique lock bolt assembly to allow the oblique bolt of the oblique lock bolt assembly to pass through the lock housing assembly 10. When the oblique bolt of the oblique lock bolt assembly passes through the lock housing assembly 10, the pressing portion 3221 abuts against the second matching portion 3216, driving the limiting member 3212 to rotate to the unlocking working position.

[0075] like Figure 16 As shown, the locking and unlocking mechanism 30 of the lock tongue also includes a first paddle 60, which is movably arranged on the lock shell assembly 10, and the first paddle 60 is used to abut and cooperate with the limit member 3212. Through the movement of the first paddle 60, the limit member 3212 can be rotated from the limit working position to the unlocking working position; the first paddle 60 has a first pressure-bearing part 101 and a second pressure-bearing part 102, the first protrusion 551 is used to cooperate with the first pressure-bearing part 101, and the second driving part 106 is used to cooperate with the second pressure-bearing part 102. After the first pressure-bearing part 101 or the second pressure-bearing part 102 is pressed and moved, it can move toward the side of the limit member 3212, so that the limit member 3212 is switched to the unlocking working position.

[0076] The working principle of the locking and unlocking mechanism 30 of the lock tongue: when the door is closed, the oblique lock tongue assembly is pressed into the lock housing assembly 10. At this time, the oblique lock tongue assembly does not limit the limit piece 3212, and the limit piece 3212 is in the limited working position, that is, the first matching portion 3214 can abut against the connecting block 3211, limiting the lock tongue assembly from moving toward the inside of the lock housing assembly 10, that is, the lock tongue 31 is locked and cannot be retracted into the lock housing assembly 10. When the first paddle 60 is forced to move, it can trigger the limit piece 3212, causing the limit piece 3212 to rotate to the unlocking working position. At this time, the first matching portion 3214 no longer limits the connecting block 3211, and the lock tongue assembly can move toward the inside of the lock housing assembly 10. In addition, even if the oblique lock tongue assembly is accidentally pressed when the door is open (causing the oblique lock tongue 80 to retract into the lock shell assembly 10), when released, the oblique lock tongue assembly can be reset under the action of the oblique lock tongue reset member 323, automatically rotating the limit member 3212 to the unlocking working position. This form of cooperation greatly improves stability and is not afraid of misoperation.

[0077] The locking and unlocking mechanism 30 of the lock tongue of the present application has a simple locking and unlocking process and good reliability and stability.

[0078] In this embodiment, the locking and unlocking mechanism 30 of the deadbolt further includes a stopper reset member 3242 mounted on the lock housing assembly 10. The stopper reset member 3242 cooperates with the stopper 3212 to reset the stopper 3212 to its restricted working position when not subject to external force. The first paddle 60 is slidably mounted on the lock housing assembly 10. The stopper reset member 3242 provides a force to reset the stopper 3212, ensuring its reliable operation.

[0079] In other embodiments, in this embodiment, the center of gravity of the limiter 3212 is not on the rotation axis of the limiter 3212, and the limiter 3212 can be reset to the limit working position by its own gravity. This method can omit the limiter reset member 3242 and simplify the structure.

[0080] In this embodiment, the lock bolt assembly reset member 324 is a spring or a torsion spring; the position-limiting member reset member 3242 is a spring or a torsion spring; and the oblique lock bolt reset member 323 is a spring or a torsion spring.

[0081] In this embodiment, the first engaging portion 3214 is a rotating shaft rotatably mounted on the limiting member 3212. The first engaging portion 3214 is a rotating shaft, which can reduce friction and facilitate position switching of the first engaging portion 3214.

[0082] In this embodiment, the locking tongue 31 is a bidirectional locking tongue 31 .

[0083] In this embodiment, a micro switch 103 mounted on the lock housing assembly 10 is further included. The micro switch 103 is used to cooperate with the limiting member 3212 or the connecting member 322 .

[0084] like Figure 17 As shown, in this embodiment, a control board 113 for controlling the operation of the electric drive mechanism 40 is further included, and the transmission mechanism 50 further includes a positioning component, which includes:

[0085] A positioning gear 107 is rotatably mounted on the lock housing assembly 10 and meshes with the driving member 55. The positioning gear 107 has a trigger portion 109;

[0086] The positioning sensor 108 is provided on the lock housing assembly 10 and is electrically connected to the control board 113 . The positioning sensor 108 is used to sense the triggering portion 109 . The positioning sensor 108 is a micro switch 103 , a Hall switch or a photoelectric switch.

[0087] By providing the positioning gear 107 and positioning sensor 108, the position of the driver 55 can be reliably determined, thereby ensuring that the driver 55 is accurately reset after the bolt portion 21 of the main lock bolt 20 passes through the lock housing assembly 10. This positioning assembly structure offers greater precision and reliability than other designs, and is also more convenient for assembly and commissioning. In this embodiment, the trigger portion 109 is a second protrusion, but other structures are also possible in actual applications.

[0088] In this embodiment, the driving member 55 is a driving gear, and the motor drive mechanism includes a driving motor 41. The driving motor 41 drives the driving member 55 to rotate directly or through a gear structure. Figure 16 As shown, in this embodiment, the electric drive mechanism 40 may include a transmission gear 53, the transmission gear 53 includes a first bevel tooth 110 and a first tooth 111 engaged with the driving member 55, and the output shaft of the driving motor 41 has a second bevel tooth 42 engaged with the first bevel tooth 110.

[0089] like Figure 16 As shown, in this embodiment, the transmission mechanism 50 further includes an assist torsion spring 112 , which is used to assist the main lock tongue 20 to pass through the lock housing assembly 10 or retract into the lock housing assembly 10 after the main lock tongue shift block 56 passes the critical point.

[0090] like Figure 11 、 12As shown in Figure 14, in this embodiment, a safety lock tongue mechanism 70 is further included, which includes a safety lock tongue 71, a safety lock block 72, a safety lock locking mechanism 73 and a safety lock reset spring 74. The safety lock tongue 71 can pass through the lock housing assembly 10; one end of the safety lock block is connected to the safety lock tongue, and the other end is connected to the safety lock reset spring, and the safety lock block can move relative to the lock housing assembly 10; the safety lock locking mechanism is installed in the lock housing assembly 10 and is transmitted with the safety lock block.

[0091] like Figure 11 As shown, the safety lock locking mechanism 73 includes: a safety lock dial block 731, a second slot 732 and a safety lock transmission member 733; the safety lock dial block 731 is mounted on the lock housing assembly 10 and can rotate relative to the lock housing assembly 10; the second slot 732 is provided on the safety lock dial block 731 for allowing an external plug to be inserted and rotate the safety lock dial block 731; the safety lock transmission member 733 is sleeved on the safety lock dial block 731, and when the user uses the plug to rotate the safety lock dial block 731, the safety lock transmission member 733 is driven and cooperates with the safety lock positioning block 72 for transmission.

[0092] like Figure 2 and 3 As shown, the side of the lock case assembly 10 facing the external door frame is provided with a main lock tongue through hole 11, a two-way lock tongue through hole 14, an oblique lock tongue through hole 15 and a safety lock tongue through hole 16; a buckle plate 90 adapted to the lock case assembly 10 is mounted on the external door frame, and the buckle plate 90 is provided with: a main lock tongue corresponding hole 91 adapted to the main lock tongue through hole 11, a two-way lock tongue corresponding hole 92 adapted to the two-way lock tongue through hole 14 and a safety lock tongue corresponding hole 93 adapted to the safety lock tongue through hole 16.

[0093] It is understandable that the gusset plate 90 does not have an opening adapted to the oblique lock bolt 80, that is, when the door equipped with the fully automatic lock 100 is in a closed state, the oblique lock bolt 90 is squeezed into the interior of the lock housing assembly 10. In addition, the lock housing assembly 10 is composed of a panel (not shown) and a lock housing (not shown).

[0094] like Figure 4 and 5 As shown, the lock housing assembly 10 is internally mounted with a second column 12; the positioning block 22 has a first sliding opening 222. The first sliding opening 222 is sleeved on the second column 12 so as to limit the movement direction and range of the connecting block 22 based on the limited fit between the first sliding opening 222 and the second column 12.

[0095] like Figure 9As shown, the limiting member 3212 includes a first limiting plate 3213 and a second limiting plate 3215, with a first engaging portion 3214 mounted between the first limiting plate 3213 and the second limiting plate 3215. A second engaging portion 3216 is formed on the side of the first limiting plate 3213 facing the connecting member 322, and the second engaging portion 3216 is in transmission engagement with the connecting member 322.

[0096] The second limiting plate 3215 forms a limiting abutment portion 3217 and a transmission abutment portion 3218 on the side facing the connecting member 322. The limiting abutment portion 3217 abuts against a protrusion (not shown) formed within the lock housing assembly 10 to limit the rotational range of the limiting member 3212. Specifically, when the limiting member 3212 rotates toward the connecting member 322, the limiting abutment portion 3217 abuts against the protrusion mounted within the lock housing assembly 10, stopping the limiting member 3212 from rotating. As the first paddle 60 moves toward the limiting member 3212, it abuts against the transmission abutment portion 3218, which in turn pushes the transmission abutment portion 3218 to rotate the limiting member 3212, thereby offsetting the left end of the limiting member 3212 from the right end of the connecting block 3211.

[0097] Furthermore, the lock housing assembly 10 is provided with a first limiting cylinder 13, which is located on the side of the second limiting plate 3215 facing away from the first side surface 17. When the limiting member 3212 rotates toward the first paddle 60, the second limiting plate 3215 abuts against the first limiting cylinder 13, preventing the limiting member 3212 from further rotating, thereby limiting the rotational range of the limiting member 3212.

[0098] like Figure 10 As shown, a spring connection portion 3222 is formed on the connecting member 322, and the connecting member 322 is connected to the oblique lock bolt reset member 323 through the spring connection portion 3222. The oblique lock bolt reset member 323 is a reset spring, one end of which is connected to the connecting member 322 and the other end is connected to the second side 18 of the lock housing assembly 10.

[0099] like Figure 6 As shown, the limiting member 3212 is installed at the sixth column 19 of the lock housing assembly and can rotate around the sixth column 19.

[0100] like Figure 7 As shown, one end of the first resetting elastic member is connected to the fourth column 47 , and the other end is hooked with the through hole 441 on the mechanical shift block.

[0101] like Figure 4 As shown, the transmission mechanism 50 further includes: a first column 51 , a rotating shaft 52 and a main lock bolt toggle shaft 54 ​​.

[0102] like Figure 4As shown, the second paddle 57 has a curved portion 571 , and the curved portion 571 of the second paddle 57 abuts against the main lock tongue paddle block 56 and drives the main lock tongue paddle block 56 to rotate.

[0103] like Figure 4 As shown, the main lock bolt block 56 has a limiting portion 562, which can abut against a second protrusion (not shown) installed in the lock housing assembly 10, thereby preventing the main lock bolt block 56 from continuing to rotate.

[0104] The locking process of the fully automatic lock 100 is taken as an example, which can be described in detail as follows:

[0105] 1. If Figure 12 As shown, when the door equipped with the fully automatic lock 100 is in the open state, the lock tongue 31 and the oblique lock tongue 80 extend out of the lock housing assembly 10, and the lock tongue portion 21 and the safety lock tongue 71 are located inside the lock housing assembly 10; specifically:

[0106] The lock bolt portion 21 is located inside the lock housing assembly 10 , and the first transmission portion 561 of the main lock bolt shifting block 56 abuts against the second side wall of the first recess 221 ;

[0107] The lock tongue 31 is completely extended out of the lock housing assembly 10 , one end of the connecting block 3211 contacts the side surface of the lock housing assembly 10 , and the first matching portion of the limiting member 3212 no longer limits the connecting block 3211 ;

[0108] The oblique lock tongue 80 is completely extended out of the lock housing assembly 10 , the connecting member 322 is away from the second side surface 18 , and the pressing portion 3221 abuts against the first abutting portion 3216 ;

[0109] The safety lock tongue 71 is located inside the lock housing assembly 10, one end of the safety lock positioning block 72 is close to the second side surface 18, the fifth column 75 is located on the left side of the second sliding opening 722, the end of the safety lock shift block 731 abuts against the end of the second recess 721 close to the second side surface 18, and the safety lock return spring 74 is in a relaxed state.

[0110] 2. When the user closes the door, the lock tongue 31 and the oblique lock tongue 80 are squeezed by the door frame and retract into the interior of the lock housing assembly 10. Figure 13 The specific process is as follows:

[0111] The lock tongue 31 is moved toward the interior of the lock housing assembly 10 by the force of the door frame, and drives the connecting block 3211 to move toward the second side surface 18. The final state is that the two-way lock tongue 31 is located inside the lock housing assembly 10.

[0112] The oblique lock tongue 80 is moved toward the inside of the lock housing assembly 10 by the force of the door frame, and drives the connecting member 322 to move toward the second side surface 18. The oblique lock tongue reset member 323 is in a compressed state, and the pressing portion 3221 does not contact the second matching portion 3216.

[0113] 3. When the door is fully closed, the main lock tongue 21, lock tongue 31 and safety lock tongue 71 are all in the locked state. Figure 14 The specific process is as follows:

[0114] When the door is fully closed, the lock tongue 31 is aligned with the corresponding hole 91 of the two-way lock tongue, and the external force acting on the two-way lock tongue 31 disappears; the lock tongue assembly reset member 324, based on the force generated by its own deformation, pushes the connecting block 3211 to move toward the left, and drives the two-way lock tongue 31 to move toward the left; when the connecting block 3211 moves to the left side of the lock housing assembly 10, the connecting block 3211 is separated from the limiting member 3212; the limiting member reset member 3242, based on the force generated by its own deformation, drives the limiting member 3212 to rotate counterclockwise and rotates to a position opposite to the end of the connecting block 3211;

[0115] The left side of the oblique lock tongue 80 abuts against the pinch plate 90 and is still located inside the lock housing assembly 10, and the oblique lock tongue reset member 323 is still in a compressed state;

[0116] When the door is fully closed, the driving motor 41 starts and drives the second bevel gear 42 to rotate. The second bevel gear cooperates with the first bevel gear to rotate the transmission gear 53 clockwise, which in turn drives the driving member 55 to rotate, causing the main lock tongue shift block 56 to rotate counterclockwise; thereby pushing the positioning block 22 and the lock tongue portion 21 to move toward the left, so that the lock tongue portion 21 is fully extended out of the lock housing assembly 10; the final state of the main lock tongue 20 is: the lock tongue portion 21 extends out of the lock housing assembly 10 and extends into the main lock tongue corresponding hole 91 at the buckle plate 90, the first transmission portion 561 abuts against the first side wall of the recess 221, and the right side of the first sliding opening 221 contacts the second column 12;

[0117] When latch key 7 is in the unlock state, latch 7 is in the unlock state, and latch has been locked in the unlock state, and lock core 71 is in the unlock state, and latch has been locked in the unlock state.

[0118] It is understandable that the unlocking process of the fully automatic lock 100 in this embodiment is as follows:

[0119] The drive motor 41 is activated to drive the drive member to rotate, thereby causing the main lock tongue shift block 56 to rotate clockwise; the first transmission portion 561 rotates counterclockwise and abuts against the second side wall of the first recess 221, thereby pushing the main lock tongue 20 to move toward the right side (i.e., the second side surface 18);

[0120] In addition, when the second transmission gear 55 rotates clockwise, it drives the first protrusion 551 to rotate clockwise and pushes the first paddle 60 to move upward; then the end of the first paddle 60 abuts against the transmission abutment portion 3218, and pushes the limiting member 3212 to rotate clockwise, so that the connecting block 3211 and the limiting member 3212 are in a staggered state; when the two-way lock tongue 31 is squeezed by an external force, the connecting block 3211 can be pushed to move toward the right; when the door panel and the door frame are completely separated, the external force on the two-way lock tongue 31 disappears, and the two-way lock tongue 31 moves to the left, thereby causing the two-way lock tongue 31 to extend out of the lock housing assembly 10;

[0121] When the oblique lock tongue 80 is separated from the door frame, the squeezing force exerted on it by the door frame disappears, and then the oblique lock tongue reset member 323 will return to a relaxed state from the compressed state, and drive the connecting member 322 and the oblique lock tongue 80 to move toward the left, so that the oblique lock tongue 80 extends out of the lock housing assembly 10, and also makes the pressing portion 3221 abut against the second matching portion 3216, thereby making the limiting member 3212 and the connecting block 3211 staggered, so that the two-way lock tongue 31 can be retracted into the lock housing assembly 10 based on external force.

[0122] The above description is only a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformation made by using the contents of the description and drawings of the present invention, directly or indirectly applied to other related technical fields, is also included in the scope of protection of the present invention.

Claims

1. A locking and unlocking mechanism for a lock tongue, provided on a lock housing assembly, characterized in that: include: A lock tongue assembly is slidably arranged on the lock housing assembly, and the lock tongue assembly includes a connecting block and a lock tongue rotatably mounted on the connecting block; A lock tongue assembly reset member is mounted on the lock housing assembly and is used to cooperate with the lock tongue assembly to allow the lock tongue of the lock tongue assembly to pass through the lock housing assembly; A limit member is rotatably mounted on the lock housing assembly, the limit member having a first matching portion and a second matching portion, the limit member having a limiting working position and an unlocking working position, when the limit member is in the limiting working position, the first matching portion is used to abut against the connecting block to limit the movement of the lock tongue assembly toward the inside of the lock housing assembly, when the limit member is in the unlocking working position, the first matching portion no longer limits the connecting block, the lock tongue assembly can move toward the inside of the lock housing assembly, and the limit member can be reset to the limiting working position when not subjected to external force; an oblique lock tongue assembly, slidably disposed on the lock housing assembly, the oblique lock tongue assembly comprising a connecting member and an oblique lock tongue rotatably mounted on the connecting member, the connecting member having a pressing portion, the pressing portion being configured to cooperate with the second matching portion; The oblique lock bolt reset member is mounted on the lock housing assembly and is used to cooperate with the oblique lock bolt assembly to allow the oblique bolt of the oblique lock bolt assembly to pass through the lock housing assembly. When the oblique bolt of the oblique lock bolt assembly passes through the lock housing assembly, the pressing portion abuts against the second matching portion, driving the limit member to rotate to the unlocking working position. The center of gravity of the limiter is not on the rotation axis of the limiter, and the limiter can be reset to the limit working position by its own gravity; There is an idle rotation structure between the main lock tongue shift block and the driving member; The idling structure includes a first mating block arranged on the main lock tongue block and a second mating block arranged on the driving member. The main lock tongue block can idlingly set an angle relative to the driving member. When the driving member rotates and the second mating block abuts against the first mating block, the driving member continues to rotate in the same direction to drive the main lock tongue block to rotate synchronously.

2. The locking and unlocking mechanism of the lock tongue according to claim 1, wherein: It also includes a limit member reset member installed on the lock housing assembly, and the limit member reset member is used to cooperate with the limit member so that the limit member can be reset to the limit working position when not subject to external force.

3. The locking and unlocking mechanism of the lock tongue according to claim 2, wherein: The reset member of the lock tongue assembly is a spring or a torsion spring; the reset member of the limit member is a spring or a torsion spring; and the reset member of the oblique lock tongue is a spring or a torsion spring.

4. The locking and unlocking mechanism of the lock tongue according to claim 1, wherein: The first matching portion is a rotating shaft rotatably mounted on the limiting component.

5. The locking and unlocking mechanism of the lock tongue according to claim 1, wherein: It also includes a first paddle movably arranged on the lock housing assembly, wherein the first paddle is used to abut and cooperate with the limiting member, and the limiting member can be rotated from the limiting working position to the unlocking working position through the movement of the first paddle.

6. The locking and unlocking mechanism of the lock tongue according to claim 5, characterized in that: The first paddle is slidably mounted on the lock housing assembly. The first paddle has a first pressure-bearing portion and a second pressure-bearing portion. After the first pressure-bearing portion or the second pressure-bearing portion is pressed and moved, it can move toward the side of the limiting member, so that the limiting member is switched to the unlocking working position.

7. The locking and unlocking mechanism of the lock tongue according to claim 1, wherein: The lock tongue is a bidirectional lock tongue.

8. The locking and unlocking mechanism of the lock tongue according to claim 1, wherein: It also includes a micro switch installed on the lock housing assembly, and the micro switch is used to cooperate with the limit member or the connecting member.

9. A fully automatic lock, characterized in that: A locking and unlocking mechanism comprising a lock tongue as claimed in any one of claims 1 to 8.

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