A lock body

Abstract

The application discloses a lock body, which comprises a lock body, a latch assembly and a main lock bolt assembly; the latch assembly comprises a latch main body, a first elastic member, a latch accessory, a second elastic member and a circuit board; the latch main body has a latch part and a rod part; the first elastic member enables the latch main body to have a movement tendency of moving to the outside of the lock shell; the latch accessory is slidably arranged on the latch main body and can be driven to move to the inside of the lock shell together with the latch main body when the latch main body slides to the inside of the lock shell; the second elastic member enables the latch accessory to have a movement tendency of moving to the outside of the lock shell; and the circuit board is provided with a first sensor which cooperates with the latch accessory and switches between a first state and a second state according to the position change of the latch accessory. The latch accessory of the application is slidably arranged on the latch main body, and compared with the structure that the trigger tongue and the latch assembly are arranged side by side, the structure is more compact; the latch assembly of the application can determine the state of the latch accessory through the first sensor, that is, the same function of the existing trigger tongue assembly can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of locks, in particular to a lock body. BACKGROUND

[0002] The main bolt assembly of the electric lock body can be automatically locked by the driving of the motor, in order to determine that the door has been closed in place, a trigger bolt assembly is arranged in parallel with the latch bolt assembly to determine, and the arrangement of the trigger bolt assembly in parallel with the latch bolt assembly results in that the lock body structure is not compact enough. SUMMARY

[0003] The present application is directed to the above problems, and proposes a lock body.

[0004] The technical scheme adopted by the present application is as follows:

[0005] A lock body, comprising a lock body and a latch bolt assembly and a main bolt assembly mounted on the lock body; the latch bolt assembly comprises:

[0006] A latch body is slidingly arranged in the lock shell, and the latch body has a latch portion and a rod portion connected to each other,

[0007] A first elastic member is arranged in the lock shell and is used for directly or indirectly cooperating with the latch body, so that the latch body has a movement trend of moving outwardly of the lock shell;

[0008] A latch accessory is slidingly arranged on the latch body, and the latch body can drive the latch accessory to move inwardly of the lock shell when the latch body slides inwardly of the lock shell;

[0009] A second elastic member is arranged in the lock shell and is used for directly or indirectly cooperating with the latch accessory, so as to make the latch accessory have a movement trend of moving outwardly of the lock shell; and

[0010] A circuit board is arranged in the lock shell, and the circuit board has a first sensor and a second sensor, the first sensor has a first state and a second state, the second sensor has a third state and a fourth state, the first sensor cooperates with the latch accessory, and the first sensor switches between the first state and the second state according to the position change of the latch accessory, the second sensor cooperates with the latch body, and the second sensor switches between the third state and the fourth state according to the position change of the latch body;

[0011] In the first state and the second state, one of them is that the first sensor is in a triggered state, and the other is that the first sensor is in a non-triggered state, and in the third state and the fourth state, one of them is that the second sensor is in a triggered state, and the other is that the second sensor is in a non-triggered state;

[0012] The latch bolt assembly has an open door state, a door closing non-positioning state and a door closing positioning state;

[0013] When the latch bolt assembly is in the open door state, the latch bolt part of the latch bolt body extends out of the lock shell, the second sensor is in the third state, the latch bolt accessory extends out of the lock shell, and the first sensor is in the first state;

[0014] When the latch bolt assembly is in the door closing non-positioning state, the latch bolt part of the latch bolt body is pressed to move and retract into the lock shell, the second sensor is in the fourth state, the latch bolt accessory also moves and retracts into the lock shell under the driving of the latch bolt body, and the first sensor is in the second state;

[0015] When the latch bolt assembly is in the door closing positioning state, the latch bolt part of the latch bolt body extends out of the lock shell, the second sensor is in the third state, the latch bolt accessory abuts against the buckle plate, the latch bolt accessory is in a compressed retracting state, and the first sensor is in the second state.

[0016] The latch bolt accessory of the present application is slidably arranged on the latch bolt body, which can make the structure more compact compared with the structure in which the trigger tongue and the latch bolt assembly are arranged side by side, the latch bolt assembly of the present application can determine the state of the latch bolt accessory through the first sensor, that is, the same function as the existing trigger tongue assembly can be realized, in actual application, the circuit board can determine whether the door is closed to position according to the signal change of the first sensor and the second sensor, and after the door is closed to position, a signal is sent to make the main lock bolt assembly of the lock body automatically extend out of the lock shell, specifically, when the second sensor changes from the first state to the second state and then to the first state, and the first sensor changes from the first state to the second state, it is determined that the door closing action is completed and the door is closed to position.

[0017] In one embodiment of the present application, the latch bolt accessory has a small tongue part and a mounting part connected with each other, the mounting part is slidably mounted on the rod part, and when the latch bolt assembly is in the open door state, the mounting part abuts against the latch bolt part;

[0018] The latch bolt part has a compressed retracting surface and a thrust surface, the compressed retracting surface is an inclined surface or an arc surface, the thrust surface has a sliding groove, and the small tongue part is slidably matched with the sliding groove.

[0019] In one embodiment of the present application, the small tongue part has a part protruding from the sliding groove, and when the latch bolt assembly is in the door closing positioning state, the end surface of the part of the small tongue part protruding from the sliding groove is in contact with the buckle plate;

[0020] Alternatively, the buckle plate has a limiting hole for clamping the latch bolt body, and the buckle plate further has a protruding part extending into the limiting hole; the small tongue part is completely embedded in the sliding groove, and when the latch bolt assembly is in the door closing positioning state, the latch bolt body extends into the limiting hole, and the small tongue part is in contact with the protruding part.

[0021] In one of the embodiments of the present application, the tongue tip has a protruding block with a protruding sliding groove at one end away from the mounting portion, the lock shell has a recessed groove for the protruding block to be inserted, and the protruding block abuts against the latch plate when the latch bolt assembly is in the closed position, and at least part of the protruding block is inserted into the recessed groove.

[0022] In one of the embodiments of the present application, the protruding block has an inclined or arc-shaped first guide surface at one side close to the mounting portion, and the thickness of the protruding block decreases as the protruding block is further away from the sliding groove; the recessed groove has a second guide surface matched with the first guide surface.

[0023] In one of the embodiments of the present application, the lock shell comprises a vertical plate and a face plate fixed relative to each other, the latch bolt body and the latch bolt accessory are arranged on the vertical plate, the recessed groove is arranged on the vertical plate, one end of the face plate close to the vertical plate has a notch, a reinforcing member is fixed on the side of the vertical plate facing the notch, the reinforcing member is inserted into the notch, and the recessed groove corresponds to the position of the reinforcing member.

[0024] In one of the embodiments of the present application, the first elastic member is a spring, a tension spring or a torsion spring, one end of the first elastic member is matched with the lock shell, and the other end is directly or indirectly matched with the rod portion.

[0025] The second elastic member is a spring, a tension spring or a torsion spring, one end of the first elastic member is matched with the lock shell, and the other end is directly or indirectly matched with the mounting portion; or the second elastic member is a spring, the second elastic member is sleeved on the rod portion, one end of the second elastic member is matched with the lock shell or the rod portion, and the other end is matched with the mounting portion.

[0026] In one of the embodiments of the present application, the main latch bolt assembly comprises:

[0027] a main latch bolt body slidingly arranged on the lock shell, the main latch bolt body having a main latch bolt portion and a main latch bolt plate connected with each other, the main latch bolt plate having a driving groove, the main latch bolt body having an extended state and a retracted state;

[0028] a main latch bolt knob rotatably arranged on the lock shell, the main latch bolt knob being capable of rotating around a first rotation axis, the main latch bolt knob having a driving portion inserted into the driving groove, the main latch bolt knob being capable of driving the main latch bolt body to slide through cooperation between the driving portion and the driving groove, the main latch bolt knob having a first position and a second position, the main latch bolt body being in the extended state when the main latch bolt knob is in the first position, and the main latch bolt body being in the retracted state when the main latch bolt knob is in the second position;

[0029] A rotating knob is rotatably mounted on the lock housing and fixed opposite to the main lock tongue knob and capable of rotating synchronously with the main lock tongue knob, the rotating knob has a first pressure receiving portion and a first matching portion arranged adjacent to the first rotating axis;

[0030] A lock cylinder is mounted on the lock housing, the lock cylinder has a lock head cam, the lock head cam has an initial position, an unlocking position and a locking position;

[0031] A lock head knob is movably arranged on the lock housing, the lock head knob has a second pressure receiving portion and a second matching portion, the second pressure receiving portion is arranged on one side of the lock cylinder and adjacent to the lock head cam;

[0032] A motor assembly is mounted on the lock housing, the motor assembly is electrically connected with the circuit board; and

[0033] A motor transmission member is rotatably mounted on the lock housing, the motor transmission member and the main lock tongue knob have a transmission structure therebetween, the transmission structure comprises an arc-shaped hole and a protrusion extending into the arc-shaped hole, one of the arc-shaped hole and the protrusion is arranged on the motor transmission member and the other is arranged on the main lock tongue knob, the motor transmission member is matched with the motor assembly and driven to rotate by the motor assembly of the lock body, thereby driving the main lock tongue knob to rotate;

[0034] During the process that the lock head cam rotates from the initial position to the unlocking position, the lock head cam is in contact with the second pressure receiving portion, thereby driving the lock head knob to move, after the lock head knob moves, the second matching portion is in contact with the first matching portion, thereby driving the rotating knob and the main lock tongue knob to synchronously rotate, and finally making the main lock tongue body switch from the extended state to the retracted state;

[0035] When the lock head cam rotates from the initial position to the locking position, the lock head cam is in contact with the first pressure receiving portion, thereby driving the rotating knob and the main lock tongue knob to synchronously rotate, and finally making the main lock tongue body switch from the retracted state to the extended state.

[0036] In one of the embodiments of the present application, the rotating knob further has a third matching portion, the third matching portion and the first matching portion are both arranged on the same side of the first rotating axis, and the distance between the third matching portion and the first rotating axis is greater than the distance between the first matching portion and the first rotating axis;

[0037] The lock head knob has a fourth matching portion matched with the third matching portion;

[0038] In the process of rotating the lock head cam from the initial position to the unlocking position, the lock head cam is in contact with the second pressure receiving part, drives the lock head paddle to move, the fourth matching part of the lock head paddle is in contact with the third matching part at first, then the fourth matching part is no longer in contact with the third matching part, but the second matching part is in contact with the first matching part, and the rotating paddle is continuously driven to rotate, and finally the main lock tongue body is switched from the extended state to the retracted state.

[0039] In one of the embodiments of the present application, the latch assembly has an extended state and a retracted state; the lock body further comprises:

[0040] The handle shaft is rotatably installed on the lock shell and is used for installing the handle; and

[0041] The handle paddle is installed on the handle shaft and can rotate relative to the handle shaft, the handle paddle has a fifth matching part and a sixth matching part, the fifth matching part is matched with the rod part of the latch assembly, and is used for switching the latch assembly from the extended state to the retracted state;

[0042] The lock head paddle has an unlocking part, in the process of rotating the lock head cam from the initial position to the unlocking position, the lock head cam is in contact with the second pressure receiving part, drives the lock head paddle to move, after the lock head paddle moves, the unlocking part abuts against the sixth matching part to drive the handle paddle to rotate, and finally the fifth matching part of the handle paddle switches the latch assembly from the extended state to the retracted state.

[0043] The present application has the following advantages: the latch accessory is slidably arranged on the latch body, compared with the structure that the trigger tongue and the latch assembly are arranged side by side, the structure is more compact, the latch assembly of the present application can determine the state of the latch accessory through the first sensor, that is, the same function as the existing trigger tongue assembly can be realized; in actual application, the circuit board can determine whether the door is closed to position according to the signal change of the first sensor and the second sensor, and sends a signal to make the main lock tongue assembly of the lock body automatically extend out of the lock shell after the door is closed to position, specifically, when the second sensor changes from the first state to the second state and then changes from the second state to the first state, and the first sensor changes from the first state to the second state, it is determined that the door closing action is completed and the door is closed to position. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a partial schematic view of the lock body in the door opening state of the latch assembly of embodiment 1;

[0045] Figure 2 is another angle schematic view of the lock body in the door opening state of the latch assembly of embodiment 1;

[0046] Figure 3 is a schematic view of the lock body and the catch plate in the door closing state of the latch assembly of embodiment 1;

[0047] Figure 4 is another angle view of the lock body and strike plate of the latch bolt assembly of Example 1 in the closed off position;

[0048] Figure 5 is an angle view of the lock body and strike plate of the latch bolt assembly of Example 1 in the closed on position;

[0049] Figure 6 is another angle view of the lock body and strike plate of the latch bolt assembly of Example 1 in the closed on position;

[0050] Figure 7 is a front view of the lock body of Example 1 with the rear cover removed;

[0051] Figure 8 is Figure 7 is a cross-sectional view of A-A in Figure 11;

[0052] Figure 9 is a schematic view of the latch bolt assembly of Example 1;

[0053] Figure 10 is another angle view of the latch bolt assembly of Example 1;

[0054] Figure 11 is an exploded view of the latch bolt assembly of Example 1;

[0055] Figure 12 is an exploded view of the lock body and strike plate of the latch bolt assembly of Example 2 in the open position;

[0056] Figure 13 is a schematic view of the lock body and strike plate of the latch bolt assembly of Example 2 in the closed on position;

[0057] Figure 14 is an exploded view of the latch bolt assembly of Example 2;

[0058] Figure 15 is a schematic view of the lock cylinder;

[0059] Figure 16 is a partial schematic view of the lock body of the latch bolt assembly of Example 3 in the open position;

[0060] Figure 17 is a schematic view of the latch body and latch accessory of Example 3 separated;

[0061] Figure 18 is a schematic view of the lock body and strike plate of the latch bolt assembly of Example 3 in the closed on position;

[0062] Figure 19 is another angle view of the lock body and strike plate of the latch bolt assembly of Example 3 in the closed on position;

[0063] Figure 20is a structural diagram of the lock body of Example 3 with a reinforcement;

[0064] Figure 21 is a structural diagram of the lock body of Example 3 with a reinforcement from another angle;

[0065] Figure 22 is a diagram of the lock body of Example 1 with the main latch body in the extended state and the lock body cam in the initial position;

[0066] Figure 23 is a diagram of the lock body of Example 1 with the motor assembly having the main latch body in the retracted state and the motor drive member rotated back;

[0067] Figure 24 is a diagram of the lock body of Example 1 with the lock body cam in the unlocked position;

[0068] Figure 25 is a diagram of the lock body of Example 1 with the lock body cam in the locked position;

[0069] Figure 26 is a diagram of the lock body of Example 1 with the motor assembly having the main latch body in the extended state;

[0070] Figure 27 is a diagram of the motor assembly and the main latch assembly of Example 1;

[0071] Figure 28 is a diagram of the motor assembly and the main latch assembly of Example 1 from another angle;

[0072] Figure 29 is an exploded view of the motor assembly and the main latch assembly of Example 1;

[0073] Figure 30 is an exploded view of the lock body of Example 1 with the motor assembly having the main latch body in the extended state and omitting part of the structure;

[0074] Figure 31 is an exploded view of the lock body of Example 1 with the motor assembly having the main latch body in the extended state and the motor drive member rotated back and omitting part of the structure.

[0075] The reference signs in the drawings are as follows:

[0076] 1, lock case; 11, vertical plate; 111, avoiding groove; 1111, second guide surface; 12, panel; 121, notch; 13, reinforcing piece; 2, buckle plate; 21, limiting hole; 22, convex part; 3, latch assembly; 31, latch body; 311, latch part; 311a, pressure-receiving retraction surface; 311b, thrust surface; 3111, sliding groove; 312, rod part; 3121, first trigger part; 32, first elastic member; 33, latch accessory; 331, small tongue part; 3311, first guide surface; 332, mounting part; 3321, second trigger part; 34, second elastic member; 35, circuit board; 351, first sensor; 352, second sensor; 4, main latch assembly; 41, main latch body; 411, main latch part; 412, main latch plate; 4121, driving groove; 42, main latch driving block; 421, driving part; 422, arc-shaped hole; 43, rotating dial; 431, first pressure-receiving part; 432, first matching part; 433, third matching part; 44, lock cylinder; 441, lock head cam; 45, lock head dial; 451, second pressure-receiving part; 452, second matching part; 453, fourth matching part; 454, unlocking part; 46, motor transmission member; 461, convex block; 462, tooth part; 5, first rotation axis; 6, motor assembly; 61, driving gear; 62, driving motor; 71, handle shaft; 72, handle dial; 721, fifth matching part; 722, sixth matching part. DETAILED DESCRIPTION

[0077] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0078] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms “inner”, “outer” and the like are based on the positions or location relationships shown in the drawings, or the positions or location relationships commonly placed when the products of the present application are used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated devices or elements must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as limiting the present application. In addition, the terms “first”, “second” and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0079] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0080] The present invention will now be described in detail with reference to the accompanying drawings.

[0081] Example 1

[0082] like Figures 1-11 , Figures 22-31 As shown, a lock body is disclosed. Figure 7 and Figure 22 As shown, the lock body includes a lock housing 1, a bolt assembly 3 mounted on the lock housing 1, and a main bolt assembly 4. (As shown...) Figures 3-6 As shown, the lock body is used to cooperate with the strike plate 2 installed on the door frame.

[0083] like Figures 1-11 As shown, the oblique tongue assembly 3 in this embodiment includes:

[0084] The latch body 31 is slidably disposed on the lock housing 1. The latch body 31 has a latch portion 311 and a rod portion 312 that are connected to each other.

[0085] The first elastic element 32 is provided in the lock housing 1 and is used to directly or indirectly cooperate with the latch body 31 to make the latch body 31 have a tendency to move outward of the lock housing 1.

[0086] The oblique latch attachment 33 is slidably disposed on the oblique latch body 31. When the oblique latch body 31 slides into the lock housing 1, it can drive the oblique latch attachment 33 to move into the lock housing 1 together.

[0087] The second elastic element 34 is disposed in the lock housing 1 and is used to directly or indirectly cooperate with the latch attachment 33 to give the latch attachment 33 a tendency to move outward from the lock housing 1; and

[0088] A circuit board 35 is disposed in the lock housing 1. The circuit board 35 has a first sensor 351. The first sensor 351 has a first state and a second state. The first sensor 351 cooperates with the latch attachment 33. The first sensor 351 switches between the first state and the second state according to the position change of the latch attachment 33.

[0089] One of the first state and the second state is that the first sensor 351 is in a triggered state, and the other is that the first sensor 351 is in a non-triggered state; when the door is closed, the latch assembly 3 of the lock body cooperates with the buckle plate 2, the latch accessory 33 moves into the lock shell 1, and the first sensor 351 is switched from the first state to the second state.

[0090] The latch accessory 33 of the present application is slidably arranged on the latch body 31, which can make the structure more compact compared to the structure in which the trigger tongue is arranged side by side with the latch assembly 3. The latch assembly 3 of the present application can determine the state of the latch accessory 33 through the first sensor 351, that is, the same function as the existing trigger tongue assembly can be achieved.

[0091] In actual use, the cross section of the rod portion 312 can be circular or other shapes, or can be a structure with a cross section changing in the axial direction.

[0092] As shown in Figures 1-6 , in the present embodiment, the circuit board 35 also has a second sensor 352, the second sensor 352 has a third state and a fourth state, the second sensor 352 cooperates with the latch body 31, and the second sensor 352 is switched between the third state and the fourth state according to the position change of the latch body 31;

[0093] One of the third state and the fourth state is that the second sensor 352 is in a triggered state, and the other is that the second sensor 352 is in a non-triggered state;

[0094] The latch assembly 3 has an open door state, a closed door not in place state, and a closed door in place state;

[0095] When the latch assembly 3 is in the open door state, as shown in Figure 1 and Figure 2 , the latch portion 311 of the latch body 31 extends out of the lock shell 1, the second sensor 352 is in the third state, the latch accessory 33 extends out of the lock shell 1, and the first sensor 351 is in the first state;

[0096] When the latch assembly 3 is in the closed door not in place state, as shown in Figure 3 and Figure 4 , the latch portion 311 of the latch body 31 is pressed to move and retract into the lock shell 1, the second sensor 352 is in the fourth state, the latch accessory 33 is also moved and retracted into the lock shell 1 under the driving of the latch body 31, and the first sensor 351 is in the second state;

[0097] When the latch assembly 3 is in the closed door in place state, as shown in Figure 5 and Figure 6, the latch body 31 of the latch part 311 extends out of the lock shell 1, the second sensor 352 is in the third state, the latch accessory 33 abuts against the clamping plate 2, the latch accessory 33 is in the compressed back state, and the first sensor 351 is in the second state.

[0098] In actual use, the circuit board 35 can determine whether the door is closed to position according to the signal changes of the first sensor 351 and the second sensor 352, and send a signal to make the main latch assembly 4 of the lock body automatically extend out of the lock shell 1 after the door is closed to position. Specifically, when the second sensor 352 changes from the first state to the second state and then to the first state, and the first sensor 351 changes from the first state to the second state, it is determined that the door closing action is completed and the door is closed to position.

[0099] In actual use, each sensor can adopt a sensor used in the existing lock body, such as a mechanical switch sensor. In actual use, other sensor forms can also be used, such as a Hall sensor.

[0100] As shown in Figures 8-11 , in the embodiment, the latch accessory 33 has a small tongue part 331 and a mounting part 332 connected with each other, and the mounting part 332 is slidingly mounted on the rod part 312. There are various ways of slidingly mounting, such as a sleeving form, a form through a track, etc.

[0101] As shown in Figure 2 and 9 , in the embodiment, the mounting part 332 is sleeved on the rod part 312, and the mounting part 332 abuts against the latch part 311 when the latch assembly 3 is in the door opening state.

[0102] In actual use, the first elastic member 32 is a spring, a tension spring or a torsion spring, one end of the first elastic member 32 cooperates with the lock shell 1, and the other end directly or indirectly cooperates with the rod part 312.

[0103] In actual use, the second elastic member 34 is a spring, a tension spring or a torsion spring, one end of the first elastic member 32 cooperates with the lock shell 1, and the other end directly or indirectly cooperates with the rod part 312. Alternatively, the second elastic member 34 is a spring, the second elastic member 34 is sleeved on the rod part 312, one end of the second elastic member 34 cooperates with the lock shell 1 or the rod part 312, and the other end cooperates with the mounting part 332.

[0104] The mounting part 332 is sleeved on the rod part 312, which is convenient for installation; when the latch assembly 3 is in the door opening state, the mounting part 332 abuts against the latch part 311, and when the door is closed, the latch part 311 is retracted into the lock shell 1 under the action of the clamping plate 2, which will drive the mounting part 332 to be retracted into the lock shell 1 synchronously.

[0105] As shown in Figures 8-11As shown, in the embodiment, the latch tongue part 311 has a pressure-retracting surface 311a and a thrust surface 311b, the pressure-retracting surface 311a is an inclined surface or an arc surface, the thrust surface 311b has a sliding groove 3111, and the tongue part 331 is in sliding fit with the sliding groove 3111.

[0106] The design of the sliding groove 3111 can limit the tongue part 331, so that the latch tongue assembly 3 is more stable and reliable in movement.

[0107] As shown in Figure 5 , 6 , 8 and 9, in the embodiment, the tongue part 331 has a portion protruding from the sliding groove 3111, and when the latch tongue assembly 3 is in the door-closed position, the end surface of the portion protruding from the sliding groove 3111 is in contact with the strike plate 2.

[0108] The tongue part 331 has a portion protruding from the sliding groove 3111, and such arrangement can not change the strike plate 2 (the strike plate 2 has various styles, and changing the strike plate 2 can effectively reduce the installation efficiency and cost of the lock body), and when the latch tongue assembly 3 is in the door-open position, the latch tongue body 31 extends into the limiting hole 21 of the strike plate 2, and the tongue part 331 has the portion protruding from the sliding groove 3111, and the protruding portion can continue to contact the strike plate 2, so that the latch tongue assembly 33 is in the retracted state.

[0109] As shown in Figure 9 , in the embodiment, the tongue part 331 protrudes from the avoiding groove 111 along the length direction of the tongue part 331.

[0110] As shown in Figures 1-6 , in the embodiment, the rod part 312 has a first trigger part 3121 cooperating with the first sensor 351, and the latch tongue assembly 33 has a second trigger part 3321 cooperating with the second sensor 352. Specifically, the mounting part 332 of the latch tongue assembly 33 has the second trigger part 3321.

[0111] As shown in Figures 22-31 , the main lock tongue assembly 4 of the lock body comprises:

[0112] a main lock tongue body 41 slidably arranged on the lock shell 1, the main lock tongue body 41 has a main lock tongue part 411 and a main lock tongue plate 412 connected with each other, the main lock tongue plate 412 has a driving groove 4121, and the main lock tongue body 41 has an extended state and a retracted state.

[0113] The main lock tongue pushing block 42 is rotatably installed on the lock shell 1, and can rotate around the first rotation axis 5. The main lock tongue pushing block 42 has a driving part 421 extending into the driving groove 4121. When the main lock tongue pushing block 42 rotates, the driving part 421 and the driving groove 4121 can cooperate to drive the main lock tongue body 41 to slide. The main lock tongue pushing block 42 has a first position and a second position. When the main lock tongue pushing block 42 is in the first position, the main lock tongue body 41 is in the extended state. When the main lock tongue pushing block 42 is in the second position, the main lock tongue body 41 is in the retracted state.

[0114] The rotating pushing piece 43 is rotatably installed on the lock shell 1, and is fixed opposite to the main lock tongue pushing block 42 and can rotate synchronously with the main lock tongue pushing block 42. The rotating pushing piece 43 has a first pressure receiving part 431 and a first matching part 432 arranged adjacent to the first rotation axis 5.

[0115] The lock cylinder 44 is installed on the lock shell 1, as shown in Figure 15 , and has a lock head cam 441. The lock head cam 441 has an initial position, an unlocking position and a locking position.

[0116] The lock head pushing piece 45 is movably arranged on the lock shell 1. The lock head pushing piece 45 has a second pressure receiving part 451 and a second matching part 452. The second pressure receiving part 451 is arranged on one side of the lock cylinder 44 and adjacent to the lock head cam 441.

[0117] The motor transmission part 46 is rotatably installed on the lock shell 1. The motor transmission part 46 and the main lock tongue pushing block 42 have a transmission structure therebetween. The transmission structure includes an arc-shaped hole 422 and a protrusion 461 extending into the arc-shaped hole 422. One of the arc-shaped hole 422 and the protrusion 461 is arranged on the motor transmission part 46, and the other is arranged on the main lock tongue pushing block 42. The motor transmission part 46 is used to cooperate with the motor assembly 6 of the lock body, and is driven by the motor assembly 6 of the lock body to rotate, thereby driving the main lock tongue pushing block 42 to rotate.

[0118] During the process that the lock head cam 441 rotates from the initial position to the unlocking position, the lock head cam 441 is in contact with the second pressure receiving part 451, thereby driving the lock head pushing piece 45 to move. After the lock head pushing piece 45 moves, the second matching part 452 is in contact with the first matching part 432, thereby driving the rotating pushing piece 43 and the main lock tongue pushing block 42 to rotate synchronously, and finally making the main lock tongue body 41 switch from the extended state to the retracted state.

[0119] When the lock head cam 441 rotates from the initial position to the unlocking position, the lock head cam 441 is in contact with the first pressure receiving part 431, thereby driving the rotating pushing piece 43 and the main lock tongue pushing block 42 to rotate synchronously, and finally making the main lock tongue body 41 switch from the retracted state to the extended state.

[0120] The second pressure receiving part 451 of the main lock bolt assembly 4 is located on one side of the lock cylinder 44 and adjacent to the lock head cam 441, and the lock head cam 441 can drive the lock head tumbler 45 to move by rotating a small angle. The first matching part 432 of the main lock bolt tumbler 42 is arranged adjacent to the first rotation axis 5, so that the first matching part 432 can realize the rotation of the main lock bolt tumbler 42 by a large angle by moving a small range. The combination of the two (the second pressure receiving part 451 is located on one side of the lock cylinder 44 and adjacent to the lock head cam 441, and the first matching part 432 is arranged adjacent to the first rotation axis 5) can make the angle of rotation of the main lock bolt assembly 4 smaller when unlocking with a key, and the unlocking process takes a shorter time.

[0121] The design of the transmission structure can make the motor driving part 46 rotate by a set angle after driving the main lock bolt body 41 to the extended state or the retracted state, so that the motor driving part 46 will not be driven to rotate when unlocking with a key (the lock head cam 441 of the lock cylinder 44 is turned to the unlocking position), and the motor driving part 46 will not be driven to rotate (the key unlocks, the main lock bolt tumbler 42 is driven to rotate, the protrusion 461 moves in the arc-shaped hole 422, and the motor driving part 46 is different), which makes it easier to unlock with a key. Figure 30 and Figure 31 , the motor driving part 46 will not be driven to rotate (the key unlocks, the main lock bolt tumbler 42 is driven to rotate, the protrusion 461 moves in the arc-shaped hole 422, and the motor driving part 46 is different), which makes it easier to unlock with a key.

[0122] In this embodiment, when the lock head cam 441 rotates from the initial position to the unlocking position, the angle of rotation of the lock head cam 441 is less than or equal to 90°.

[0123] As shown in Figure 29 , in this embodiment, the main lock bolt plate 412 is located between the main lock bolt tumbler 42 and the rotating tumbler 43. In this way, the main lock bolt plate 412 is evenly stressed and moves more stably and reliably.

[0124] As shown in Figure 27 , in this embodiment, the driving part 421 is arranged on the driving groove 4121;

[0125] One end of the driving part 421 is fixed to the main lock bolt tumbler 42, and the other end is inserted into the rotating tumbler 43; or one end of the driving part 421 is fixed to the rotating tumbler 43, and the other end is inserted into the main lock bolt tumbler 42.

[0126] As shown in Figure 22 , 27 and 29, in this embodiment, the rotating tumbler 43 further has a third matching part 433, the third matching part 433 and the first matching part 432 are located on the same side of the first rotation axis 5, and the distance between the third matching part 433 and the first rotation axis 5 is greater than the distance between the first matching part 432 and the first rotation axis 5;

[0127] The lock head tumbler 45 has a fourth matching part 453 matched with the third matching part 433;

[0128] During the process of the lock head cam 441 rotating from the initial position to the unlocked position, the lock head cam 441 contacts and engages with the second pressure part 451, driving the lock head lever 45 to move. At first, the fourth engagement part 453 of the lock head lever 45 contacts and engages with the third engagement part 433, driving the rotating lever 43 to rotate. Then, the fourth engagement part 453 and the third engagement part 433 no longer contact and engage, but the second engagement part 452 contacts and engages with the first engagement part 432, continuing to drive the rotating lever 43 to rotate, ultimately causing the main bolt body 41 to switch from the extended state to the retracted state.

[0129] The first mating part 432 is located adjacent to the first rotation axis 5, which results in a small lever arm. Therefore, a larger force needs to be applied to the key at the beginning of rotation. This application addresses this by providing a third mating part 433 (the distance of the third mating part 433 from the first rotation axis 5 is greater than the distance of the first mating part 432 from the first rotation axis 5) and a fourth mating part 453, so that at the beginning of unlocking, [see...]. Figure 22 and 24 The third mating part 433 and the fourth mating part 453 drive the rotating paddle 43 to rotate. Compared with the initial mating with the first mating part 432, the lever arm is increased, which can better drive the rotating paddle 43 to rotate. Then, the fourth mating part 453 no longer contacts the third mating part 433, but the second mating part 452 contacts the first mating part 432 to continue driving the rotating paddle 43 to rotate, and finally the main locking tongue body 41 switches from the extended state to the retracted state.

[0130] In this embodiment, the first mating part 432 and the third mating part 433 are located on both sides of the lock cylinder lever 45, respectively. This arrangement results in a compact structure.

[0131] In this embodiment, the lock head lever 45 is slidably disposed on the lock housing 1.

[0132] like Figure 22 and 27 As shown, in this embodiment, the motor drive component 46 has teeth 462, which are used to cooperate with the motor assembly 6.

[0133] like Figure 22 and 27 As shown, in this embodiment, the motor assembly 6 includes:

[0134] The drive gear 61 is rotatably mounted on the lock housing 1, and the drive gear 61 meshes with the teeth 462 of the motor transmission component 46;

[0135] The drive motor 62 is used to drive the drive gear 61 to rotate.

[0136] like Figures 22-26As shown, in the embodiment, the latch assembly 3 has an extended state and a retracted state; the lock body further comprises:

[0137] The handle shaft 71 is rotatably installed on the lock housing 1 and is used for installing the handle; and

[0138] The handle push piece 72 is installed on the handle shaft 71 and can rotate relative to the handle shaft 71, the handle push piece 72 has a fifth matching part 721 and a sixth matching part 722, the fifth matching part 721 matches with the latch assembly 3 and is used for switching the latch assembly 3 from the extended state to the retracted state;

[0139] The lock head push piece 45 has an unlocking part 454, in the process of rotating the lock head cam 441 from the initial position to the unlocking position, the lock head cam 441 is in contact with the second pressure receiving part 451, drives the lock head push piece 45 to move, after the lock head push piece 45 moves, the unlocking part 454 abuts against the sixth matching part 722 to rotate the handle push piece 72, and finally switches the latch assembly 3 from the extended state to the retracted state through the fifth matching part 721 of the handle push piece 72.

[0140] Embodiment 2

[0141] As shown in FIGS. Figure 12 , 13 and 14, the difference between the embodiment and the embodiment 1 is that the buckle plate 2 has a limiting hole 21 for clamping the latch main body 31, and the buckle plate 2 further has a convex part 22 extending into the limiting hole 21; the tongue part 331 is completely embedded in the sliding groove 3111, and when the latch assembly 3 is in the door closing in place state, the latch main body 31 extends into the limiting hole 21 and the tongue part 331 is in contact with the convex part 22.

[0142] The tongue part 331 is completely embedded in the sliding groove 3111, which means that the tongue part 331 does not protrude from the sliding groove 3111, and this setting can not change the thickness of the lock body, that is, it will not increase the thickness of the lock body because the tongue part 331 protrudes from the sliding groove 3111.

[0143] Embodiment 3

[0144] As shown in FIGS. Figures 16-21 , the difference between the embodiment and the embodiment 1 is that the tongue part 331 has a convex block 3311 protruding from the sliding groove 3111 at the end away from the mounting part 332, and the lock housing 1 has a avoiding groove 111 for embedding the convex block 3311, and when the latch assembly 3 is in the door closing in place state, the convex block 3311 abuts against the buckle plate 2 and at least part of the convex block 3311 is embedded in the avoiding groove 111.

[0145] The tongue part 331 is thus set, which, compared with other structural forms, will not increase the thickness of the lock body and does not need to specially design the buckle plate 2.

[0146] In actual use, the avoiding groove 111 can be a non-penetrating structure or a penetrating structure.

[0147] As shown in Figure 16 and Figure 17 In this embodiment, the convex block 3311 has a first guide surface 33111 which is inclined or arc-shaped near one side of the mounting portion 332, and the thickness of the convex block 3311 decreases as it is farther away from the sliding groove 3111. The avoiding groove 111 has a second guide surface 1111 which is adapted to the first guide surface.

[0148] The cooperation between the first guide surface 33111 and the second guide surface 1111 does not affect the embedding of the convex block 3311 into the avoiding groove 111 when the latch bolt assembly 3 is in the door-closed position, but can reduce the amount of material that needs to be removed from the lock housing 1 due to the setting of the avoiding groove 111, and can ensure the structural strength of the lock body. That is, if the first guide surface 33111 and the second guide surface 1111 are not set, the convex block 3311 is a block with a certain thickness, and in this case, a larger volume of avoiding groove 111 is needed, which will remove more material and affect the structural strength.

[0149] As shown in Figure 20 and 21 In this embodiment, the lock housing 1 includes a relatively fixed vertical plate 11 and a panel 12, the latch bolt body 31 and the latch bolt accessory 33 are arranged on the vertical plate 11, the avoiding groove 111 is located on the vertical plate 11, one end of the panel 12 near the vertical plate 11 has a notch 121, a reinforcing member 13 is fixed to the side of the vertical plate 11 facing the notch 121, the reinforcing member 13 is embedded in the notch 121, and the avoiding groove 111 corresponds to the position of the reinforcing member 13.

[0150] The setting of the reinforcing member 13 can enhance the structural strength of the vertical plate 11, prevent the problem of reduced structural strength of the vertical plate 11 due to the setting of the avoiding groove 111, and is particularly suitable for the case of a lock housing 1 with a relatively small width of the vertical plate 11.

[0151] The above description is only the preferred embodiments of the present application, and does not limit the patent protection scope of the present application. Any equivalent structural transformation, direct or indirect application in other related technical fields, is also included in the protection scope of the present application.

Claims

1. A lock body, characterized in that The lock body is provided with a latch assembly and a main bolt assembly, the latch assembly comprises: a latch body slidingly arranged in the lock housing, the latch body having a latch portion and a rod portion connected with each other, a first elastic member arranged in the lock housing and directly or indirectly cooperating with the latch body to make the latch body have a movement tendency of moving out of the lock housing; a latch accessory slidingly arranged on the latch body, the latch body sliding into the lock housing can drive the latch accessory to move into the lock housing; a second elastic member arranged in the lock housing and directly or indirectly cooperating with the latch accessory to make the latch accessory have a movement tendency of moving out of the lock housing; and a circuit board arranged in the lock housing, the circuit board having a first sensor and a second sensor, the first sensor having a first state and a second state, the second sensor having a third state and a fourth state, the first sensor cooperating with the latch accessory and switching between the first state and the second state according to the position change of the latch accessory, the second sensor cooperating with the latch body and switching between the third state and the fourth state according to the position change of the latch body; one of the first state and the second state is that the first sensor is in a triggered state, and the other is that the first sensor is in a non-triggered state, one of the third state and the fourth state is that the second sensor is in a triggered state, and the other is that the second sensor is in a non-triggered state; the latch assembly has an open door state, a closed door non-in-place state and a closed door in-place state; when the latch assembly is in the open door state, the latch portion of the latch body extends out of the lock housing, the second sensor is in the third state, the latch accessory extends out of the lock housing, and the first sensor is in the first state; when the latch assembly is in the closed door non-in-place state, the latch portion of the latch body is pressed to move into the lock housing and retract, the second sensor is in the fourth state, the latch accessory also moves into the lock housing and retracts under the driving of the latch body, and the first sensor is in the second state; when the latch assembly is in the closed door in-place state, the latch portion of the latch body extends out of the lock housing, the second sensor is in the third state, the latch accessory abuts against the buckle plate, the latch accessory is in a compressed retraction state, and the first sensor is in the second state.

2. The lock body of claim 1, wherein the latch accessory has a small tongue portion and a mounting portion connected with each other, the mounting portion slidingly mounted on the rod portion, and the mounting portion abuts against the latch portion when the latch assembly is in the open door state; the latch portion has a compressed retraction surface and a thrust surface, the compressed retraction surface is an inclined surface or an arc surface, and the thrust surface has a sliding groove, and the small tongue portion slidingly cooperates with the sliding groove.

3. The lock body of claim 2, wherein the small tongue portion has a part protruding out of the sliding groove, and an end surface of the part protruding out of the sliding groove is in contact with the buckle plate when the latch assembly is in the closed door in-place state; alternatively, the buckle plate has a limiting hole for the latch body to be clamped into, and the buckle plate further has a protruding portion extending into the limiting hole; the small tongue portion is completely embedded in the sliding groove, and the latch body extends into the limiting hole and the small tongue portion is in contact with the protruding portion when the latch assembly is in the closed door in-place state.

4. The lock body of claim 3, wherein The tongue tip has a protruding block with a protruding sliding groove at one end away from the mounting part, the lock shell has an avoiding groove for the protruding block to be embedded, when the latch bolt assembly is in the closed position, the protruding block abuts against the buckle plate, and at least part of the protruding block is embedded in the avoiding groove.

5. The lock body of claim 4, wherein, The protruding block has an inclined or arc-shaped first guide surface on one side close to the mounting part, the thickness of the protruding block decreases as the protruding block is farther away from the sliding groove, and the avoiding groove has a second guide surface matched with the first guide surface.

6. The lock body of claim 4, wherein The lock shell includes a relatively fixed vertical plate and a panel, the latch bolt body and the latch bolt accessory are arranged on the vertical plate, the avoiding groove is arranged on the vertical plate, one end of the panel close to the vertical plate has a notch, a reinforcing member is fixed on the side of the vertical plate facing the notch, the reinforcing member is embedded in the notch, and the avoiding groove corresponds to the position of the reinforcing member.

7. The lock body of claim 1, wherein The first elastic member is a spring, a tension spring or a torsion spring, one end of the first elastic member is matched with the lock shell, and the other end is directly or indirectly matched with the rod part. The second elastic member is a spring, a tension spring or a torsion spring, one end of the first elastic member is matched with the lock shell, and the other end is directly or indirectly matched with the mounting part, or the second elastic member is a spring, the second elastic member is sleeved on the rod part, one end of the second elastic member is matched with the lock shell or the rod part, and the other end is matched with the mounting part.

8. The lock body of claim 1, wherein The main latch bolt assembly comprises: The main latch bolt body is slidably arranged on the lock shell, and the main latch bolt body has a main latch bolt part and a main latch bolt plate connected with each other, the main latch bolt plate has a driving groove, and the main latch bolt body has an extended state and a retracted state; The main latch bolt knob is rotatably arranged on the lock shell, and the main latch bolt knob can rotate around a first rotation axis, the main latch bolt knob has a driving part extending into the driving groove, and the main latch bolt knob can drive the main latch bolt body to slide through cooperation between the driving part and the driving groove, the main latch bolt knob has a first position and a second position, the main latch bolt body is in the extended state when the main latch bolt knob is in the first position, and the main latch bolt body is in the retracted state when the main latch bolt knob is in the second position; The rotating knob is rotatably arranged on the lock shell, and the rotating knob is fixed opposite to the main latch bolt knob and can rotate synchronously with the main latch bolt knob, the rotating knob has a first pressure receiving part and a first matching part arranged adjacent to the first rotation axis; The lock cylinder is arranged on the lock shell, and the lock cylinder has a lock head cam, the lock head cam has an initial position, an unlocking position and a locking position; The lock head knob is movably arranged on the lock shell, and the lock head knob has a second pressure receiving part and a second matching part, the second pressure receiving part is arranged on one side of the lock cylinder and adjacent to the lock head cam; The motor assembly is arranged on the lock shell, and the motor assembly is electrically connected with the circuit board; and The motor drive is rotatably installed on the lock case, and the motor drive and the main lock tongue push block have a transmission structure therebetween, the transmission structure comprising an arc-shaped hole and a protrusion extending into the arc-shaped hole, one of which is arranged on the motor drive and the other of which is arranged on the main lock tongue push block, the motor drive being driven by the motor assembly of the lock body to rotate, thereby driving the main lock tongue push block to rotate; In the process of rotating the lock head cam from the initial position to the unlocking position, the lock head cam is in contact with the second pressure receiving part, driving the lock head push piece to move, after the lock head push piece moves, the second matching part is in contact with the first matching part, driving the rotating push piece and the main lock tongue push block to rotate synchronously, and finally making the main lock tongue body switch from the extended state to the retracted state; When the lock head cam rotates from the initial position to the locking position, the lock head cam is in contact with the first pressure receiving part, driving the rotating push piece and the main lock tongue push block to rotate synchronously, and finally making the main lock tongue body switch from the retracted state to the extended state.

9. The lock body of claim 8, wherein, The rotating push piece further has a third matching part, the first matching part and the third matching part are located on the same side of the first rotation axis, and the distance between the third matching part and the first rotation axis is greater than the distance between the first matching part and the first rotation axis; The lock head push piece has a fourth matching part matched with the third matching part; In the process of rotating the lock head cam from the initial position to the unlocking position, the lock head cam is in contact with the second pressure receiving part, driving the lock head push piece to move, at the beginning, the fourth matching part of the lock head push piece is in contact with the third matching part, driving the rotating push piece to rotate, then the fourth matching part is no longer in contact with the third matching part, but the second matching part is in contact with the first matching part, continuing to drive the rotating push piece to rotate, and finally making the main lock tongue body switch from the extended state to the retracted state.

10. The lock body of claim 9, wherein, The latch bolt assembly has an extended state and a retracted state; the lock body further comprises: A handle shaft rotatably installed on the lock case and used for installing a handle; and A handle push piece rotatably installed on the handle shaft, the handle push piece having a fifth matching part and a sixth matching part, the fifth matching part being matched with the rod part of the latch bolt assembly and used for making the latch bolt assembly switch from the extended state to the retracted state; The lock head push piece has an unlocking part, in the process of rotating the lock head cam from the initial position to the unlocking position, the lock head cam is in contact with the second pressure receiving part, driving the lock head push piece to move, after the lock head push piece moves, the unlocking part abuts against the sixth matching part, driving the handle push piece to rotate, and finally making the latch bolt assembly switch from the extended state to the retracted state through the fifth matching part of the handle push piece.

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