Electronic door lock and lock body switch structure thereof

Abstract

The application discloses an electronic door lock and a lock body switch structure thereof, and belongs to the technical field of electronic door locks. The lock body switch structure comprises a lock shell, a driving motor, a clutch transmission mechanism and a lock cylinder. The driving motor and the clutch transmission mechanism are installed in the lock shell, and the clutch transmission mechanism is in transmission cooperation with an output shaft of the driving motor. The lock cylinder is installed in the lock shell, and the lock cylinder is provided with a rotatable lock cylinder cam. The lock cylinder cam controls whether the driving gear and the driven gear of the clutch transmission mechanism are engaged or not. The application can effectively reduce the resistance when the manual key is used to open the lock, and can avoid the problem that the manual key cannot be used to open the lock when the driving motor fails.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of locks, in particular to an electronic door lock and a lock body switch structure thereof. BACKGROUND

[0002] At present, the door locks sold on the market can be roughly divided into two types, namely mechanical door locks and electronic door locks.

[0003] The so-called mechanical door lock refers to the mechanical connection between the components in the entire lock body. This type of door lock is widely used in life. The usual structure of the unlocking device of the mechanical lock is to drive the main lock tongue assembly and the latch assembly by the lock core dial on the lock core and the door handle to perform unlocking and locking.

[0004] The electronic door lock is based on the mechanical door lock and adds an electronic unlocking mechanism. The usual structure of the unlocking device of the electronic lock is that the motor drives the main lock tongue assembly and the latch assembly to act through the gear transmission mechanism to perform unlocking. However, the gear transmission mechanism of the existing electronic door lock does not have a clutch function, so when the emergency key is used to drive the lock core to rotate to perform manual key unlocking, the self-locking force of the motor and the gear transmission mechanism needs to be overcome to unlock. Therefore, the resistance is large when the manual key is unlocked, the user's unlocking experience is poor, and if the motor is burned out or stuck, the manual key unlocking may not be possible, which poses a certain safety hazard. SUMMARY

[0005] The purpose of the present application is to provide an electronic door lock and a lock body switch structure thereof to overcome the shortcomings of the prior art.

[0006] In order to achieve the above purpose, the solution of the present application is as follows:

[0007] A lock body switch structure of an electronic door lock, comprising a lock shell, a driving motor, a clutch transmission mechanism and a lock core; the driving motor is installed in the lock shell; the clutch transmission mechanism comprises a clutch seat, a driving gear, a driven gear, a sliding seat and a clutch return member, the clutch seat and the driving gear are rotatably installed in the lock shell, the driving gear is in transmission cooperation with the output shaft of the driving motor, the driven gear is rotatably installed in the clutch seat and the driven gear is in movable engagement with the driving gear, the sliding seat is movably cooperated in the lock shell, the sliding seat movably pushes against the clutch seat to control whether the driven gear is engaged with the driving gear or not, and the clutch return member is cooperated in the lock shell and is used to drive the clutch seat to return; the lock core is installed in the lock shell, the lock core has a rotatable lock core cam, and the lock core cam movably pushes against the sliding seat to control whether the sliding seat pushes against the clutch seat or not.

[0008] The sliding seat is provided with an arc-shaped part which is in active contact with the lock cylinder cam, and / or the lock cylinder cam is provided with a cam part which has a smooth pushing surface which is in active contact with the sliding seat. The lock shell is provided with an arc-shaped guide hole, and the clutch seat is provided with a guide post which is in sliding contact with the guide hole.

[0009] The clutch transmission mechanism further comprises a transmission gear which is rotatably connected to the clutch seat and is in meshing connection with the driven gear, and the rotation center of the transmission gear is coaxially arranged with the rotation center of the clutch seat.

[0010] The lock body switch structure further comprises a main lock tongue assembly and a main lock tongue switch part. The main lock tongue assembly comprises a main lock tongue and a lock tongue seat connected with the main lock tongue, the lock tongue seat is translatably connected to the lock shell, and a push-pull track is formed in the lock tongue seat. The main lock tongue switch part is rotatably connected to the lock shell and is driven to rotate by the driven gear, the main lock tongue switch part is provided with a pushing part and a push-pull part which is in sliding contact with the push-pull track, and when the push-pull part is slid in the push-pull track by the rotation of the main lock tongue switch part, the main lock tongue switch part drives the lock tongue seat to translate. The lock cylinder cam is in active contact with the pushing part of the main lock tongue switch part.

[0011] The lock body switch structure further comprises a latch assembly and a latch switch mechanism. The latch assembly is connected to the lock shell, and the latch switch mechanism comprises a first latch switch assembly. The first latch switch assembly comprises a first latch switch part and a first latch reset part. The first latch switch part is rotatably connected to the lock shell, and the first latch switch part is provided with a first unlocking part and a first linkage part. The first unlocking part is in active contact with the latch assembly to drive the latch assembly to unlock and lock. The first latch reset part is connected to the first latch switch part to drive the first latch switch part to rotate and reset. The clutch transmission mechanism further comprises a latch gear which is in transmission connection with the driving gear, the latch gear is provided with a traction part which is in sliding connection with the first linkage part.

[0012] The lock tongue seat is further provided with an arc-shaped track which is connected with the end of the push-pull track, and the push-pull part of the main lock tongue switch part is in sliding contact with the arc-shaped track. When the push-pull part of the main lock tongue switch part is in sliding contact with the arc-shaped track, the center of the arc-shaped track is located at the rotation center of the main lock tongue switch part. Meanwhile, the latch gear drives the first latch switch part to rotate so that the first unlocking part of the first latch switch part pushes the latch assembly.

[0013] The latch switch mechanism further comprises a handle connecting part. The handle connecting part is rotatably connected to the lock shell, the handle connecting part is coaxially arranged with the rotation center of the first latch switch part, and the handle connecting part is in active contact with the first latch switch part in the circumferential direction.

[0014] The lock body switch structure further comprises a handle opening lock piece; the handle opening lock piece is rotatably matched with the lock shell, the rotation center of the handle opening lock piece is coaxially arranged with the first latch opening lock piece, and the handle opening lock piece is circumferentially movably limited and matched with the handle connecting piece; the handle connecting piece is provided with a handle cam, the handle cam movably pushes and abuts against the clutch seat to control whether the driven gear and the driving gear are engaged.

[0015] An electronic door lock comprises the lock body switch structure as described above.

[0016] After the above scheme is adopted, when the lock cylinder cam rotates to push the sliding seat during the manual key opening process by the emergency key, the sliding seat pushes the clutch seat to drive the clutch seat to rotate the driven gear, so that the driven gear and the driving gear are disengaged, and the clutch transmission mechanism is in a separated state, so that the rotation of the lock cylinder is driven by the driving motor and the clutch transmission mechanism with small resistance (i.e., the manual key opening resistance is small), which can facilitate the user to manually open the key, and improve the user's experience of manual key opening. At the same time, it can also prevent the driving motor from burning out or being stuck, which causes the lock cylinder to rotate with large resistance and cannot manually open the key. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Structure diagram of the present application Figure 1 ;

[0018] Figure 2 Structure diagram of the present application Figure 2 ;

[0019] Figure 3 Structure diagram of the present application

[0020] Figure 4 Structure diagram of the clutch transmission mechanism of the present application Figure 1 ;

[0021] Figure 5 Structure diagram of the clutch transmission mechanism of the present application Figure 2 ;

[0022] Figure 6 Structure diagram of the main latch assembly of the present application

[0023] Figure 7 Structure diagram of the latch assembly of the present application

[0024] Figure 8 Structure diagram of the latch assembly of the present application

[0025] Figure 9 Structure diagram of the present application Figure 1 ;

[0026] Figure 10 Schematic diagram of partial structure of the present application Figure 2

[0027] Figure 11 Schematic diagram of partial structure of the present application Figure 3 (Primary lock tongue assembly and latch assembly lock);

[0028] Figure 12 Schematic diagram of partial structure of the present application Figure 4 (Primary lock tongue assembly and latch assembly lock);

[0029] Figure 13 Schematic diagram of partial structure of the present application Figure 5 (Clutch transmission mechanism in disengaged state);

[0030] Figure 14 Schematic diagram of partial structure of the present application Figure 6 (Clutch transmission mechanism in disengaged state);

[0031] Figure 15 Schematic diagram of partial structure of the present application Figure 7 (Manual key unlocking);

[0032] Figure 16 Schematic diagram of partial structure of the present application Figure 8 (Manual key unlocking);

[0033] Figure 17 Schematic diagram of partial structure of the present application Figure 9 (Electronic unlocking);

[0034] Figure 18 Schematic diagram of partial structure of the present application Figure 10 (Electronic unlocking);

[0035] Figure 19 Schematic diagram of partial structure of the present application Figure 11 (Quick handle unlocking);

[0036] Figure 20 Schematic diagram of partial structure of the present application Figure 12 (Quick handle unlocking);

[0037] Cutaway view

[0038] Explanation of reference numerals

[0039] Lock housing 1, front housing 101, rear housing 102, guide hole 11, lock tongue hole 12, latch hole 13,

[0040] Drive motor 2

[0041] ​Clutch transmission mechanism 3, clutch seat 31, guide post 311, driving gear 32, driven gear 33, sliding seat 34, arc part 341, clutch return member 35, transmission gear 36, bevel gear 37, traction member 38,

[0042] Lock cylinder 4, lock cylinder cam 41, cam part 411, push surface 4111,

[0043] Main lock bolt assembly 5, main lock bolt 51, lock bolt seat 52, push-pull rail 521, arc rail 522,

[0044] Main lock bolt switch member 6, poking part 61, push-pull part 62,

[0045] Bevel bolt assembly 7, bevel bolt 71, stop part 711, bevel bolt seat 72, connecting head 7201, support upper cover 7202, support lower cover 7203, sliding hole 721, stop member 73, main stop member 731, secondary stop member 732, stop return member 74, bevel bolt return torsion spring 75, pulley 76, roller 77,

[0046] Bevel bolt switch mechanism 8, first bevel bolt switch assembly 81, first bevel bolt switch member 811, first unlocking part 8111, first linkage part 8112, first bevel bolt return member 812, second bevel bolt switch assembly 82, second bevel bolt switch member 821, second unlocking part 8211, second linkage part 8212, bevel bolt lock cylinder handle unlocking member 822, handle connecting member 83, handle cam 831, handle return member 84,

[0047] Handle unlocking member 9. DETAILED DESCRIPTION

[0048] In order to further explain the technical solutions of the present application, the present application will be described in detail below through specific embodiments.

[0049] As Figures 1 to 20As shown, the present application discloses an electronic door lock with a labor-saving lock body switch structure; the lock body switch structure comprises a lock shell 1, a driving motor 2, a clutch transmission mechanism 3, a lock cylinder 4 and a main lock bolt assembly 5; wherein the driving motor 2 is installed in the lock shell 1; the clutch transmission mechanism 3 comprises a clutch seat 31, a driving gear 32, a driven gear 33, a sliding seat 34 and a clutch reset piece 35, the clutch seat 31 and the driving gear 32 are rotatably installed in the lock shell 1 respectively, the driving gear 32 is in transmission cooperation with the output shaft of the driving motor 2, the driven gear 33 is rotatably installed in the clutch seat 31 and the driven gear 33 is in movable engagement with the driving gear 32, the driven gear 33 is used for driving the main lock bolt assembly 5 to lock and unlock, the sliding seat 34 is movably cooperated in the lock shell 1, the sliding seat 34 movably pushes the clutch seat 31 to control whether the driven gear 33 is engaged with the driving gear 32 or not, and the clutch reset piece 35 is cooperated in the lock shell 1 and is used for driving the clutch seat 31 to reset; the lock cylinder 4 is installed in the lock shell 1, the lock cylinder 4 has a rotatable lock cylinder cam 41, the lock cylinder cam 41 movably pushes the sliding seat 34 to control whether the sliding seat 34 pushes the clutch seat 31 or not, and the lock cylinder cam 41 is used for driving the main lock bolt assembly 5 to lock and unlock.

[0050] In the present application, when the process of manual key unlocking is carried out by the emergency key, the lock cylinder cam 41 will rotate to push the sliding seat 34, so that the sliding seat 34 pushes the clutch seat 31 to make the clutch seat 31 drive the driven gear 33 to rotate, so that the driven gear 33 is disengaged from the driving gear 32 to make the clutch transmission mechanism 3 in a separated state, so that the rotation of the lock cylinder 4 is subjected to small resistance of the driving motor 2 and the clutch transmission mechanism 3 (i.e. small resistance of manual key unlocking), which can facilitate the user to manually unlock the key and improve the user's experience of manual key unlocking; at the same time, it can also prevent the driving motor 2 from being burnt out or stuck, which causes large resistance of the lock cylinder 4 rotation and leads to manual key unlocking failure.

[0051] In the present application, the lock shell 1 can comprise a front shell 101 and a rear shell 102 connected together, and a space for accommodating the driving motor 2, the clutch transmission mechanism 3, the lock cylinder 4 and the main lock bolt assembly 5 is formed between the front shell 101 and the rear shell 102; the lock shell 1 can be provided with an arc-shaped guide hole 11, and the clutch seat 31 is provided with a guide column 311 which is in sliding cooperation with the guide hole 11, the guide column 311 movably abuts against both sides of the guide hole 11, the cooperation of the guide column 311 and the guide hole 11 can guide the rotation of the clutch seat 31, so that the rotation track of the clutch seat 31 is accurate, and the cooperation of the guide column 311 and the guide hole 11 can also limit the rotation position of the clutch seat 31, so as to ensure that the clutch seat 31 is limited in the position where the driven gear 33 can be engaged with the driving gear 32, and the stability of electronic unlocking is ensured.

[0052] In the present application, the sliding seat 34 is provided with an arc-shaped portion 341 which is in active contact with the lock core cam 41, so as to avoid the sliding seat 34 from clamping the lock core cam 41 and causing the lock core cam 41 unable to rotate, and at the same time, the sliding seat 34 and the lock core cam 41 form a line contact, so as to reduce the friction resistance between the sliding seat 34 and the lock core cam 41. The lock core cam 41 is provided with a cam portion 411 which has a smooth pushing surface 4111 which is in active contact with the arc-shaped portion 341 of the sliding seat 34, so as to avoid the sliding seat 34 from clamping the lock core cam 41 and causing the lock core cam 41 unable to rotate, and at the same time, the sliding seat 34 and the lock core cam 41 form a line contact, so as to reduce the friction resistance between the sliding seat 34 and the lock core cam 41. The clutch reset member 35 can be a torsion spring which is matched with the lock housing 1, one side of the clutch reset member 35 abuts against the clutch seat 31, and the other side of the clutch reset member 35 abuts against a limiting portion in the lock housing 1.

[0053] In the present application, the clutch transmission mechanism 3 further comprises a transmission gear 36 which is rotatably matched with the clutch seat 31, the rotation center of the transmission gear 36 is coaxially arranged with the rotation center of the clutch seat 31, the transmission gear 36 is engaged with the driven gear 33, and the driven gear 33 drives the main lock bolt assembly 5 to move through the transmission gear 36; since the rotation center of the transmission gear 36 is coaxially arranged with the rotation center of the clutch seat 31, the transmission gear 36 cannot move with the clutch seat 31, and thus the rotation of the driven gear 33 and the clutch seat 31 will not interfere with the main lock bolt assembly 5.

[0054] In the present application, the lock body switch structure further comprises a main lock tongue switch piece 6, the lock cylinder cam 41 and the clutch transmission mechanism 3 are in transmission cooperation with the main lock tongue assembly 5 through the main lock tongue switch piece 6; the main lock tongue assembly 5 comprises a main lock tongue 51 and a lock tongue seat 52 connected with the main lock tongue 51, the lock tongue seat 52 is in translational cooperation in the lock shell 1, the lock shell 1 is provided with a lock tongue hole 12 for the main lock tongue 51 to enter and exit, and the lock tongue seat 52 is provided with a push-pull track 521; and the main lock tongue switch piece 6 is in rotational cooperation in the lock shell 1, the main lock tongue switch piece 6 is provided with a pushing part 61 and a push-pull part 62 in sliding cooperation with the push-pull track 521; when the main lock tongue switch piece 6 is rotated to make the push-pull part 62 slide in the push-pull track 521, the main lock tongue switch piece 6 drives the lock tongue seat 52 to translate, so as to control the main lock tongue assembly 5 to be unlocked and locked; the driven gear 33 drives the main lock tongue switch piece 6 to rotate through the transmission gear 36, so as to realize electronic unlocking and electronic locking of the main lock tongue assembly, and the main lock tongue switch piece 6 can be coaxially connected with the transmission gear 36; and the lock cylinder cam 41 drives the main lock tongue switch piece 6 to rotate by pushing the pushing part 61 of the main lock tongue switch piece 6, so as to realize manual key unlocking and manual key locking of the main lock tongue assembly 5, and the lock cylinder cam 41 can push the main lock tongue switch piece 6 by the cam part 411.

[0055] In the present application, the lock body switch structure further comprises a latch assembly 7 and a latch switch mechanism 8, the latch switch mechanism 8 comprises a first latch switch assembly 81 and a second latch switch assembly 82. The latch assembly 7 is in cooperation with the lock shell 1; the driving motor 2 drives the latch assembly 7 to be electronically unlocked and locked through the clutch transmission mechanism 3 and the first latch switch assembly 81; and the lock cylinder 4 drives the latch assembly 7 to be manually unlocked and locked through the second latch switch assembly 82.

[0056] In the present application, the first latch switch assembly 81 comprises a first latch switch piece 811 and a first latch reset piece 812, the first latch switch piece 811 is rotatably fitted in the lock shell 1, the first latch switch piece 811 is provided with a first unlocking part 8111 and a first linkage part 8112, the first unlocking part 8111 is used to drive the latch assembly 7 to unlock and lock, the first latch reset piece 812 is matched with the first latch switch piece 811 and is used to drive the first latch switch piece 811 to rotate and reset, the first latch reset piece 812 can adopt a torsion spring; the clutch transmission mechanism 3 drives the first latch switch piece 811 to rotate to realize the electronic unlocking and electronic locking of the latch assembly 7; specifically, the clutch transmission mechanism 3 further comprises a latch gear 37, the latch gear 37 is transmissionally matched with the driving gear 32, the latch gear 37 is matched with a traction piece 38, the traction piece 38 is slidingly hinged with the first linkage part 8112 so that the latch gear 37 can drive the first latch switch piece 811 to rotate; when the driving motor 2 works, the driving gear 32 drives the latch gear 37 to rotate, the latch gear 37 further drives the first latch switch piece 811 to rotate through the traction piece 38, so that the first unlocking part 8111 drives the latch assembly 7 to unlock and lock. The lock tongue seat 52 is further provided with an arc-shaped track 522 connected with the end of the push-pull track 521, and the push-pull part 62 of the main lock tongue switch piece 6 is slidingly connected with the arc-shaped track 522; when the push-pull part 62 of the main lock tongue switch piece 6 is slidingly connected with the arc-shaped track 522, the center of the arc-shaped track 522 is just located at the rotation center of the main lock tongue switch piece 6, so that the main lock tongue switch piece 6 does not drive the lock tongue seat 52 to translate (i.e. the rotation of the main lock tongue switch piece 6 is empty stroke at this time), at the same time, the latch gear 37 drives the first latch switch piece 811 to rotate through the traction piece 38, so that the first unlocking part 8111 of the first latch switch piece 811 pushes the latch assembly 7 to drive the latch assembly 7 to unlock; the present application is thus arranged, so that the force applied by the main lock tongue switch piece 6 to the lock tongue seat 52 is small when the first unlocking part 8111 pushes the latch assembly 7, thereby reducing the power requirement of the driving motor 2, so that the driving motor 2 can adopt a small-size, low-cost and low-power motor. The traction piece 38 can be circumferentially movably limited with the latch gear 37, so that when the push-pull part 62 of the main lock tongue switch piece 6 is slidingly connected on the push-pull track 521, the latch gear 37 does not drive the traction piece 38 to rotate and does not drive the first latch switch piece 811 to rotate (i.e. the latch gear 37 has an empty stroke), thereby reducing the power requirement of the driving motor 2; the traction piece 38 can be sleeved with the latch gear 37, the traction piece 38 is provided with a traction opening, and the latch gear 37 is provided with a traction sliding block slidingly connected with the traction opening, so that the latch gear 37 is circumferentially movably limited with the traction piece 38.

[0057] In the present application, the second latch switch assembly 82 comprises a second latch switch piece 821 and a latch bolt handle unlocking piece 822; the second latch switch piece 821 is rotatably matched in the lock case 1, the rotation center of the second latch switch piece 821 can be coaxially arranged with the rotation center of the first latch switch piece 811, the second latch switch piece 821 is provided with a second unlocking part 8211 and a second linkage part 8212, the second unlocking part 8211 pushes and abuts the latch assembly 7 to drive the latch assembly 7 to unlock and lock, and the latch bolt handle unlocking piece 822 is translatably matched in the lock case 1, the latch bolt handle unlocking piece 822 pushes and abuts the second linkage part 8212, and the lock cylinder cam 41 pushes and abuts the latch bolt handle unlocking piece 822, the lock cylinder cam 41 can push and abut the latch bolt handle unlocking piece 822 by the cam part 411; the present application drives the latch bolt handle unlocking piece 822 to translate by the lock cylinder cam 41 pushing and abutting the latch bolt handle unlocking piece 822, and then the latch bolt handle unlocking piece 822 pushes and abuts the second linkage part 8212 to drive the second latch switch piece 821 to rotate, so that the second unlocking part 8211 pushes and abuts the latch assembly 7 to drive the latch assembly 7 to manually unlock and lock by the key. The latch bolt handle unlocking piece 822 can be translatably matched in the lock tongue seat 52, when the lock cylinder cam 41 drives the main lock bolt assembly 5 to unlock, the lock cylinder cam 41 drives the second latch switch assembly 82 to control the latch assembly 7 to unlock.

[0058] In the present application, the latch switch mechanism 8 further comprises a handle connecting piece 83 for connecting a door handle (not shown); the handle connecting piece 83 is rotatably fitted in the lock shell 1, the rotation center of the handle connecting piece 83 is coaxially arranged with the rotation center of the first latch switch piece 811, the handle connecting piece 83 is circumferentially movably limited with the first latch switch piece 811, so that the first latch switch piece 811 can rotate a certain angle relative to the handle connecting piece 83, so that the present application can drive the first latch switch piece 811 to rotate by the driving motor 2, and the first unlocking part 8111 pushes against the latch assembly 7, at this time, the first latch switch piece 811 rotates relative to the handle connecting piece 83 without driving the handle connecting piece 83 to rotate, so that the present application has low power requirement for the driving motor 2, and the driving motor 2 can adopt a small-size, low-cost and low-power motor; the first latch switch piece 811 can be sleeved with the handle connecting piece 83, the first latch switch piece 811 is provided with a first opening, and the handle connecting piece 83 is provided with a first sliding block for sliding with the first opening, so that the handle connecting piece 83 is circumferentially movably limited with the first latch switch piece 811. In addition, the user can drive the handle connecting piece 83 to rotate through the door handle, so that the handle connecting piece 83 drives the first latch switch piece 811 to rotate and drives the latch assembly 7 to unlock. The latch switch mechanism 8 further comprises a handle reset piece 84, which is matched with the handle connecting piece 83 and is used for driving the handle connecting piece 83 to rotate and reset, and the handle reset piece 84 can adopt a torsional spring.

[0059] In the present application, the latch assembly 7 can include a latch seat 72, a latch 71, a stopper 73 and a stopper reset member 74; the latch seat 72 is installed in the lock shell 1, the latch 71 is hinged with the latch seat 72, the lock shell 1 is provided with a latch hole 13 for the movement of the latch 71, the latch 71 is provided with a stop portion 711 and a latch reset torsion spring 75 is arranged between the latch 71 and the latch seat 72, the latch reset torsion spring 75 is used to drive the latch 71 to rotate and reset, the stopper 73 is slidingly connected with the latch seat 72 and the stopper 73 is movably clamped against the stop portion 711, the stopper reset member 74 cooperates with the stopper 73 and is used to drive the stopper 73 to reset, when the stopper 73 resets, the stopper 73 clamps against the stop portion 711 to limit the rotation of the latch 71, so that the latch assembly 7 is locked; the first unlocking portion 8111 of the first latch switch member 811 and the second unlocking portion 8211 of the second latch switch member 821 push against the stopper 73 to move the stopper 73, so that the stopper 73 unclamps against the stop portion 711, so that the latch assembly 7 is unlocked, at this time, when the latch 71 abuts against the door frame, the latch 71 can rotate to enter or exit the lock hole on the door frame. The stop portion 711 of the latch 71 can be provided with a pulley 76, the pulley 76 slidingly contacts the stopper 73 to reduce the friction resistance between the stopper 73 and the latch 71, thereby facilitating the first latch switch member 811 and the second latch switch member 821 to move the stopper 73 with less force, so that the power requirement of the driving motor 2 is low, and the driving motor 2 can adopt a small-size, low-cost and low-power motor; the stopper 73 can be provided with a roller 77, the roller 77 slidingly contacts the latch seat 72 to reduce the friction resistance between the stopper 73 and the latch seat 72, thereby facilitating the first latch switch member 811 and the second latch switch member 821 to move the stopper 73 with less force, so that the power requirement of the driving motor 2 is low, and the driving motor 2 can adopt a small-size, low-cost and low-power motor; the roller 77 and the pulley 76 can be respectively arranged on both sides of the stopper 73, so as to balance the force on both sides of the stopper 73 and make the stopper 73 move stably.The latch seat 72 can be provided with a sliding hole 721 in which a movable sleeve stopper 73 is arranged, so that the stopper 73 is in sliding connection with the latch seat 72, and the roller 77 is in sliding contact with the inner wall of the sliding hole 721; the latch seat 72 can include a connecting head 7201, a supporting upper cover 7202 and a supporting lower cover 7203, the supporting upper cover 7202 and the supporting lower cover 7203 are connected with the connecting head 7201, the supporting upper cover 7202 and the supporting lower cover 7203 form the sliding hole 721, and the latch 71 is hinged to the connecting head 7201, and the latch reset torsional spring 75 is arranged between the latch 71 and the connecting head 7201, so that the latch assembly 7 can be conveniently assembled; the stopper 73 can include a main stopper 731 and a secondary stopper 732 which are detachably connected, the main stopper 731 is in sliding connection with the latch seat 72 and movably abuts against the stopper 711, the roller 77 is installed on the main stopper 731, the first unlocking part 8111 of the first latch switch part 811 and the second unlocking part 8211 of the second latch switch part 821 movably abut against the secondary stopper 732, so that the latch 71, the latch seat 72 and the main stopper 731 can be used as a latch main body which is detachably connected with the secondary stopper 732, so that the latch main body can be installed in a forward direction and a reverse direction with the secondary stopper 732, thereby controlling the installation direction of the latch 71, and making the latch assembly 7 applicable to left opening door and right opening door structures.

[0060] In the present application, the lock body switch structure further includes a handle unlocking part 9 which is rotatably arranged in the lock shell 1, the rotation center of the handle unlocking part 9 is coaxially arranged with the rotation center of the first latch switch part 811, the handle unlocking part 9 is in sliding connection with the main latch switch part 6, so that the rotation of the handle unlocking part 9 can drive the rotation of the main latch switch part 6, and the handle connecting part 83 is arranged to drive the rotation of the handle unlocking part 9; the user can drive the rotation of the handle connecting part 83 through the handle inside the door, the handle connecting part 83 in turn drives the rotation of the handle unlocking part 9, so that the handle unlocking part 9 drives the rotation of the main latch switch part 6, and further drives the translation of the latch seat 52, so that the main latch assembly 5 is unlocked; in this way, the user can realize the fast handle unlocking by rotating the handle inside the door, which is convenient for the user to use.

[0061] In the present application, the handle unlocking piece 9 and the handle connecting piece 83 can be circumferentially movable and limitedly matched, so that the handle connecting piece 83 can drive the handle unlocking piece 9 to rotate and at the same time make the handle unlocking piece 9 be able to rotate a certain angle relative to the handle connecting piece 83, so that when the driving motor 2 drives the lock tongue seat 52 to translate through the clutch transmission mechanism 3 and the main lock tongue switch piece 6 and the lock cylinder cam 41 drives the lock tongue seat 52 to translate through the main lock tongue switch piece 6, the lock tongue seat 52 drives the handle unlocking piece 9 to rotate, so that the handle unlocking piece 9 rotates relative to the handle connecting piece 83 without driving the handle connecting piece 83 to rotate, thereby making the power requirement of the driving motor 2 low, so that the driving motor 2 can adopt a small-size, low-cost, low-power motor; at the same time, the resistance of the lock cylinder 4 to the unlocking of the main lock tongue assembly 5 is also small, improving the user's unlocking experience; the handle unlocking piece 9 can be sleeved with the handle connecting piece 83, the handle unlocking piece 9 is provided with a second opening, and the handle connecting piece 83 is provided with a second sliding block that is slidably connected with the second opening, so that the handle connecting piece 83 and the handle unlocking piece 9 are circumferentially movable and limitedly matched. In addition, the handle connecting piece 83 can be provided with a handle cam 831 that movably pushes against the clutch seat 31 to control whether the driven gear 33 and the driving gear 32 are engaged, so that in the process of controlling the main lock tongue assembly 5 to be unlocked by rotating the handle connecting piece 83, the handle cam 831 will push against the clutch seat 31 to make the clutch seat 31 drive the driven gear 33 to rotate, so that the driven gear 33 and the driving gear 32 are disengaged to make the clutch transmission mechanism 3 be in a separated state, so that the rotation of the handle connecting piece 83 is small in resistance of the driving motor 2 and the clutch transmission mechanism 3, and the user can conveniently and quickly unlock through the handle connecting piece 83, improving the user's unlocking experience.

[0062] The above embodiments and drawings are not limited to the product shape and style of the present application, and any appropriate changes or modifications made by those skilled in the art shall be considered as not departing from the scope of the present application.

Claims

1. A lock body switch structure of an electronic door lock, characterized by: The lock includes a lock shell, a driving motor, a clutch transmission mechanism, a lock cylinder, a main lock bolt assembly, a main lock bolt switch, a latch bolt assembly and a latch bolt switch mechanism; The driving motor is installed in the lock shell; The clutch transmission mechanism includes a clutch seat, a driving gear, a driven gear, a sliding seat and a clutch reset member, the clutch seat and the driving gear are rotatably installed in the lock shell, the driving gear is in transmission cooperation with the output shaft of the driving motor, the driven gear is rotatably installed in the clutch seat and in active engagement with the driving gear, the sliding seat is movably cooperated in the lock shell, the sliding seat actively pushes against the clutch seat to control whether the driven gear is engaged with the driving gear or not, and the clutch reset member is cooperated in the lock shell and used to reset the clutch seat. The lock cylinder is installed in the lock shell, and the lock cylinder has a rotatable lock cylinder cam, which actively pushes against the sliding seat to control whether the sliding seat pushes against the clutch seat or not. The main lock bolt assembly includes a main lock bolt and a lock bolt seat connected with the main lock bolt, the lock bolt seat is translatably cooperated in the lock shell, and a push-pull track is formed in the lock bolt seat; the main lock bolt switch is rotatably cooperated in the lock shell and driven to rotate by the driven gear, the main lock bolt switch is provided with a pushing part and a push-pull part in sliding cooperation with the push-pull track; when the push-pull part is slid in the push-pull track by the rotation of the main lock bolt switch, the main lock bolt switch drives the lock bolt seat to translate; the lock cylinder cam actively pushes against the pushing part of the main lock bolt switch. The latch bolt assembly is cooperated in the lock shell, and the latch bolt switch mechanism includes a first latch bolt switch assembly; the first latch bolt switch assembly includes a first latch bolt switch and a first latch bolt reset member, the first latch bolt switch is rotatably cooperated in the lock shell, the first latch bolt switch is provided with a first unlocking part and a first linkage part, the first unlocking part actively pushes against the latch bolt assembly to drive the latch bolt assembly to unlock and lock; the first latch bolt reset member is cooperated with the first latch bolt switch and used to drive the first latch bolt switch to rotate and reset; the clutch transmission mechanism further includes a latch gear, the latch gear is in transmission cooperation with the driving gear, the latch gear is cooperated with a traction member, and the traction member is in sliding hinged cooperation with the first linkage part.

2. The lock body switch structure of claim 1, wherein: The sliding seat is provided with an arc part in active cooperation with the lock cylinder cam, and / or the lock cylinder cam is provided with a cam part, the cam part has a smooth pushing surface, and the pushing surface actively pushes against the sliding seat.

3. The lock body switch structure of claim 1, wherein: The lock shell is provided with an arc-shaped guide hole, the clutch seat is provided with a guide column in sliding cooperation with the guide hole, and the guide column actively abuts against both sides of the guide hole.

4. The lock body switch structure of claim 1, wherein: The clutch transmission mechanism further includes a transmission gear, the transmission gear is rotatably cooperated in the clutch seat and in engagement with the driven gear, and the rotation center of the transmission gear is coaxially arranged with the rotation center of the clutch seat.

5. The lock body switch structure of claim 1, wherein: The lock bolt seat is further provided with an arc-shaped track connected with the end of the push-pull track, and the push-pull part of the main lock bolt switch is in sliding cooperation with the arc-shaped track; When the push-pull part of the main lock bolt switch is in sliding cooperation with the arc-shaped track, the center of the arc-shaped track is just at the rotation center of the main lock bolt switch, and at the same time, the latch gear drives the first latch bolt switch to rotate so that the first unlocking part of the first latch bolt switch pushes against the latch bolt assembly.

6. The lock body switch structure of claim 1, wherein: The latch switch mechanism further comprises a handle connecting piece; the handle connecting piece is rotatably matched with the lock shell, the handle connecting piece is coaxially arranged with the rotation center of the first latch switch piece, and the handle connecting piece is circumferentially movably limited with the first latch switch piece.

7. The lock body switch structure of claim 6, wherein: The handle connecting piece is coaxially arranged with the rotation center of the first latch switch piece, and the handle connecting piece is circumferentially movably limited with the first latch switch piece.

8. An electronic door lock characterized by: The handle connecting piece is coaxially arranged with the rotation center of the first latch switch piece, and the handle connecting piece is circumferentially movably limited with the first latch switch piece. The handle connecting piece is coaxially arranged with the rotation center of the first latch switch piece, and the handle connecting piece is circumferentially movably limited with the first latch switch piece.

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