Lock body

Abstract

The invention discloses a lock body which comprises a lock body, a latch bolt assembly and a main spring bolt assembly. The latch bolt assembly comprises a latch bolt main body which is provided with a latch bolt part and a rod part, and a first elastic piece which enables the latch bolt main body to have a movement trend of moving towards the outer side of the lock shell; the latch bolt accessory is arranged on the latch bolt main body in a sliding mode, and the latch bolt main body can drive the latch bolt accessory to move towards the interior of the lock shell together when sliding towards the interior of the lock shell; the second elastic piece is used for enabling the latch bolt accessory to have a movement trend of moving towards the outer side of the lock shell; and the circuit board is provided with a first sensor, the first sensor is matched with the latch bolt accessory, and the first sensor is switched between a first state and a second state according to the position change of the latch bolt accessory. The latch bolt accessory is arranged on the latch bolt body in a sliding mode, compared with the structure that the trigger bolt and the latch bolt assembly are arranged side by side, the structure can be more compact, the latch bolt assembly can judge the state of the latch bolt accessory through the first sensor, and the same function of an existing trigger bolt assembly can be achieved.

Description

Technical Field

[0001] The invention relates to the field of locks, and in particular to a lock body. Background Art

[0002] The main lock tongue assembly of the electric lock body can be automatically locked by the drive of the motor. In order to determine whether the door has been closed, a trigger tongue assembly is required to be arranged side by side with the inclined tongue assembly at an interval above and below for judgment. The arrangement of the trigger tongue assembly side by side with the inclined tongue assembly causes the lock body structure to be not compact enough. Summary of the invention

[0003] In view of the above problems, the present invention provides a lock body.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A lock body, comprising a lock body and an inclined bolt assembly and a main locking bolt assembly installed on the lock body; the inclined bolt assembly comprises:

[0006] The oblique tongue body is slidably arranged in the lock housing, and the oblique tongue body comprises an oblique tongue portion and a rod portion connected to each other.

[0007] A first elastic member is disposed on the lock housing and is used to directly or indirectly cooperate with the oblique tongue body so that the oblique tongue body has a movement tendency to move toward the outside of the lock housing;

[0008] An oblique bolt attachment is slidably arranged on the oblique bolt body, and when the oblique bolt body slides into the lock housing, it can drive the oblique bolt attachment to move into the lock housing together;

[0009] A second elastic member is disposed on the lock housing and is used to directly or indirectly cooperate with the oblique bolt attachment to make the oblique bolt attachment have a movement tendency to move toward the outside of the lock housing; and

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

[0011] In the first state and the second state, one is that the first sensor is in a triggered state, and the other is that the first sensor is in a non-triggered state; in the third state and the fourth state, one 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 a door-opening state, a door-not-fully-closed state, and a door-fully-closed state;

[0013] When the latch bolt assembly is in the door opening state, the latch bolt portion of the latch bolt body extends out of the lock housing, the second sensor is in the third state, the latch bolt attachment extends out of the lock housing, and the first sensor is in the first state;

[0014] When the latch bolt assembly is in the state of not fully closing the door, the latch bolt portion of the latch bolt body is pressed to move into the lock housing and retract, the second sensor is in the fourth state, the latch bolt attachment is also driven by the latch bolt body to move into the lock housing and retract, and the first sensor is in the second state;

[0015] When the latch bolt assembly is in the door closing position, the latch bolt portion of the latch bolt body extends out of the lock housing, the second sensor is in the third position, the latch bolt attachment abuts against the buckle plate, the latch bolt attachment is in a compressed retracted position, and the first sensor is in the second position.

[0016] The inclined bolt accessory of the present application is slidably arranged on the inclined bolt body, which can make the structure more compact compared to the structure in which the trigger tongue and the inclined bolt assembly are arranged side by side. The inclined bolt assembly of the present application can determine the state of the inclined bolt accessory through the first sensor, that is, it can achieve the same function as the existing trigger tongue assembly; in actual use, the circuit board can determine whether the door is fully closed according to the signal changes of the first sensor and the second sensor, and send a signal to automatically extend the main lock bolt assembly of the lock body out of the lock shell after the door is fully closed. 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 fully closed.

[0017] In one embodiment of the present invention, the latch bolt attachment comprises a small tongue portion and a mounting portion connected to each other, the mounting portion is slidably mounted on the rod portion, and when the latch bolt assembly is in the door opening state, the mounting portion abuts against the latch bolt portion;

[0018] The oblique tongue portion has a pressure-bearing retracting surface and a thrust surface, the pressure-bearing retracting surface is an inclined surface or an arc-shaped surface, the thrust surface has a sliding groove, and the small tongue portion is slidably matched with the sliding groove.

[0019] In one embodiment of the present invention, the small tongue has a portion protruding from the slide slot, and when the inclined tongue assembly is in a fully closed state, the end surface of the portion of the small tongue protruding from the slide slot contacts and cooperates with the buckle plate;

[0020] Alternatively, the buckle plate has a limiting hole for the inclined tongue body to be inserted into, and the buckle plate also has a convex portion extending into the limiting hole; the small tongue portion is completely embedded in the sliding groove, and when the inclined tongue assembly is in a closed state, the inclined tongue body extends into the limiting hole and the small tongue portion contacts and cooperates with the convex portion.

[0021] In one embodiment of the present invention, the end of the small tongue portion away from the mounting portion has a protruding block protruding from the slide groove, and the lock shell has an avoidance groove for the protruding block to be embedded in. When the inclined tongue assembly is in a closed state, the protruding block abuts against the buckle plate, and the protruding block is at least partially embedded in the avoidance groove.

[0022] In one embodiment of the present invention, the protruding block has an inclined or arc-shaped first guide surface on one side close to the mounting portion, and the thickness of the protruding block decreases as the protruding block moves away from the slide groove; the avoidance groove has a second guide surface adapted to the guide surface.

[0023] In one embodiment of the present invention, the lock housing includes a relatively fixed vertical plate and a panel, the inclined tongue body and the inclined tongue accessories are inserted through the vertical plate, the avoidance groove is located on the vertical plate, the panel has a notch at one end close to the vertical plate, a reinforcement is fixed to a side of the vertical plate facing the notch, the reinforcement is embedded in the notch, and the avoidance groove corresponds to the position of the reinforcement.

[0024] In one embodiment of the present invention, 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 housing, and the other end is directly or indirectly matched with the rod;

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

[0026] In one embodiment of the present invention, the main locking tongue assembly includes:

[0027] A main lock tongue body is slidably arranged on the lock housing, the main lock tongue body comprises a main lock tongue portion and a main lock tongue plate connected to each other, the main lock tongue plate comprises a driving groove, and the main lock tongue body has an extended state and a retracted state;

[0028] A main lock tongue toggle block is rotatably mounted on the lock housing, the main lock tongue toggle block can rotate around a first rotation axis, the main lock tongue toggle block has a driving portion extending into the driving groove, and when the main lock tongue toggle block rotates, the main lock tongue body can be driven to slide through the cooperation of the driving portion and the driving groove, the main lock tongue toggle block has a first position and a second position, when the main lock tongue toggle block is in the first position, the main lock tongue body is in an extended state, and when the main lock tongue toggle block is in the second position, the main lock tongue body is in a retracted state;

[0029] A rotating paddle is rotatably mounted on the lock housing, relatively fixed to the main lock tongue toggle block, and can rotate synchronously with the main lock tongue toggle block, wherein the rotating paddle has a first pressure-bearing portion and a first matching portion disposed adjacent to the first rotation axis;

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

[0031] A lock paddle, movably arranged on the lock housing, the lock paddle having a second pressure-bearing portion and a second matching portion, wherein the second pressure-bearing portion is located at one side of the lock core and adjacent to the lock cam;

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

[0033] A motor transmission member is rotatably mounted on the lock housing, and a transmission structure is provided between the motor transmission member and the main lock tongue toggle block, wherein the transmission structure comprises an arc-shaped hole and a convex block extending into the arc-shaped hole, wherein one of the arc-shaped hole and the convex block is arranged on the motor transmission member, and the other is arranged on the main lock tongue toggle block, and the motor assembly of the motor transmission member cooperates, and is driven by the motor assembly of the lock body to rotate, thereby driving the main lock tongue toggle block to rotate;

[0034] When the lock cam rotates from the initial position to the unlocking position, the lock cam contacts and cooperates with the second pressure-bearing portion, driving the lock paddle to move. After the lock paddle moves, the second matching portion contacts and cooperates with the first matching portion, driving the rotating paddle and the main lock tongue toggle block to rotate synchronously, and finally switching the main lock tongue body from the extended state to the retracted state.

[0035] When the lock cam rotates from the initial position to the locking position, the lock cam contacts and cooperates with the first pressure-bearing portion, driving the rotating paddle and the main lock tongue paddle block to rotate synchronously, and finally switching the main lock tongue body from the retracted state to the extended state.

[0036] In one embodiment of the present invention, the rotating paddle further comprises a third matching portion, the third matching portion and the first matching portion are both located 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 paddle has a fourth matching portion that matches with the third matching portion;

[0038] During the process of the lock cam rotating from the initial position to the unlocked position, the lock cam contacts and cooperates with the second pressure-bearing part, driving the lock paddle to move. At the beginning, the fourth matching part of the lock paddle contacts and cooperates with the third matching part, driving the rotating paddle to rotate. Then the fourth matching part and the third matching part are no longer in contact and cooperate, but the second matching part contacts and cooperates with the first matching part, continuing to drive the rotating paddle to rotate, and finally switching the main lock tongue body from the extended state to the retracted state.

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

[0040] A handle shaft, rotatably mounted on the lock housing, for mounting the handle; and

[0041] A handle paddle is mounted on the handle shaft and can rotate relative to the handle shaft. The handle paddle has a fifth matching portion and a sixth matching portion. The fifth matching portion matches with the rod portion of the oblique bolt assembly to switch the oblique bolt assembly from an extended state to a retracted state.

[0042] The lock paddle has an unlocking portion. During the process of the lock cam rotating from the initial position to the unlocking position, the lock cam contacts and cooperates with the second pressure-bearing portion to drive the lock paddle to move. After the lock paddle moves, the unlocking portion abuts against the sixth matching portion to rotate the handle paddle, and finally the inclined tongue assembly is switched from the extended state to the retracted state through the fifth matching portion of the handle paddle.

[0043] The beneficial effects of the present invention are as follows: the inclined bolt attachment of the present application is slidably arranged on the inclined bolt body, which can make the structure more compact compared to the structure in which the trigger tongue and the inclined bolt assembly are arranged side by side. The inclined bolt assembly of the present application can determine the state of the inclined bolt attachment through the first sensor, that is, it can achieve the same function as the existing trigger tongue assembly. In actual use, the circuit board can determine whether the door is fully closed according to the signal changes of the first sensor and the second sensor, and send a signal to automatically extend the main lock bolt assembly of the lock body out of the lock shell after the door is fully closed. 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 fully closed. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0045] Figure 2 is a schematic diagram of another angle of the lock body in the door opening state of the latch bolt assembly of Example 1;

[0046] Figure 3 is a schematic diagram of the lock body and the buckle plate of Example 1 when the latch bolt assembly is not fully closed;

[0047] Figure 4 is a schematic diagram of the lock body and the buckle plate at another angle when the latch bolt assembly of Example 1 is not fully closed;

[0048] Figure 5 is a schematic diagram of the lock body and the strike plate of the latch bolt assembly of Example 1 when the door is fully closed;

[0049] Figure 6 is a schematic diagram of the lock body and the buckle plate at another angle when the latch bolt assembly of Example 1 is in the fully closed state;

[0050] Figure 7 is a front view of the lock body after partially hiding the lock housing in Example 1;

[0051] Figure 8 yes Figure 7 Middle AA section view;

[0052] Fig. 9 is a schematic diagram of the latch bolt assembly of Example 1;

[0053] Fig.10 is a schematic diagram of the inclined tongue assembly of Embodiment 1 from another angle;

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

[0055] Fig.12 is an exploded view of the lock body and the buckle plate of the latch bolt assembly in the open state of Example 2;

[0056] Fig.13 is a schematic diagram of the lock body and the buckle plate of the latch bolt assembly of Example 2 when the door is fully closed;

[0057] Fig.14 is an exploded view of the latch bolt assembly of Embodiment 2;

[0058] Fig.15 It is a schematic diagram of the lock cylinder;

[0059] Fig.16 is a partial schematic diagram of the lock body in the door opening state of the latch bolt assembly of Example 3;

[0060] Fig.17 is a schematic diagram of the latch bolt body and the latch bolt attachment after being separated in Example 3;

[0061] Fig.18 is a schematic diagram of the lock body and the buckle plate of the latch bolt assembly of Example 3 when the door is fully closed;

[0062] Fig.19 is a schematic diagram of another angle of the lock body and the buckle plate in the state where the latch bolt assembly of Example 3 is fully closed;

[0063] Fig. 20is a schematic structural diagram of a lock body with a reinforcement member in Example 3;

[0064] Fig.21 is a schematic structural diagram of a lock body with a reinforcement member in another angle of embodiment 3;

[0065] Fig. 22 is a schematic diagram of the lock body in Example 1, in which the main lock tongue body is in an extended state and the lock body cam is in an initial position;

[0066] Fig.23 is a schematic diagram of the motor assembly of Example 1 causing the main bolt body to be in a retracted state and the motor transmission member to rotate;

[0067] Fig.24 is a schematic diagram of the lock body when the lock body cam of Example 1 is in the unlocking position;

[0068] Fig.25 is a schematic diagram of the lock body when the lock body cam of Example 1 is in the locked position;

[0069] Fig.26 is a schematic diagram of the motor assembly of Example 1 making the main lock tongue body in an extended state;

[0070] Fig. 27 is a schematic diagram of the motor assembly and the main lock tongue assembly of Example 1;

[0071] Fig.28 is a schematic diagram of the motor assembly and the main locking tongue assembly of Embodiment 1 from another angle;

[0072] Fig.29 is an exploded view of the motor assembly and the main lock tongue assembly of Example 1;

[0073] Fig.30 It is an exploded view of the lock body with some structures omitted, in which the motor assembly of Embodiment 1 makes the main lock tongue body in an extended state;

[0074] Fig.31 This is an exploded view of the lock body with some structures omitted after the motor assembly of Example 1 makes the main lock tongue body in an extended state and the motor transmission part rotates.

[0075] The reference numerals in the figures are:

[0076] 1. Lock housing; 11. Vertical plate; 111. Avoidance groove; 1111. Second guide surface; 12. Panel; 121. Notch; 13. Reinforcement member; 2. Buckle plate; 21. Limiting hole; 22. Protrusion; 3. Oblique tongue assembly; 31. Oblique tongue body; 311. Oblique tongue portion; 311a. Pressure-bearing retraction surface; 311b. Thrust surface; 3111. Slide groove; 312. Rod portion; 3121. First trigger portion; 32. First elastic member; 33. Oblique tongue attachment; 331. Small tongue portion; 3311. Protruding block; 33111. First guide surface; 332. Mounting portion; 3321. Second trigger portion; 34. Second elastic member; 35. Circuit board; 351. First sensor; 352. Second sensor; 4. Main lock tongue assembly; 41 , main lock tongue body; 411, main lock tongue part; 412, main lock tongue plate; 4121, driving groove; 42, main lock tongue toggle block; 421, driving part; 422, arc hole; 43, rotating paddle; 431, first pressure-bearing part; 432, first matching part; 433, third matching part; 44, lock core; 441, lock head cam; 45, lock head paddle; 451, second pressure-bearing part; 452, second matching part; 453, fourth matching part; 454, unlocking part; 46, motor transmission part; 461, protrusion; 462, tooth part; 5, first rotation axis; 6, motor assembly; 61, driving gear; 62, driving motor; 71, handle shaft; 72, handle paddle; 721, fifth matching part; 722, sixth matching part. DETAILED DESCRIPTION

[0077] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0078] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the 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 clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0080] The present invention is described in detail below in conjunction with the accompanying drawings.

[0081] Example 1

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

[0083] like Figures 1 to 11 As shown, the latch bolt assembly 3 of this embodiment includes:

[0084] The inclined tongue body 31 is slidably disposed on the lock housing 1. The inclined tongue body 31 comprises an inclined tongue portion 311 and a rod portion 312 connected to each other.

[0085] The first elastic member 32 is disposed on the lock housing 1 and is used to cooperate with the inclined bolt body 31 directly or indirectly so that the inclined bolt body 31 has a movement tendency to move toward the outside of the lock housing 1;

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

[0087] A second elastic member 34 is disposed on the lock housing 1 and is used to directly or indirectly cooperate with the latch bolt attachment 33 to make the latch bolt attachment 33 have a movement tendency to move toward the outside of the lock housing 1; and

[0088] The circuit board 35 is arranged on 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 bolt attachment 33. The first sensor 351 switches between the first state and the second state according to the position change of the latch bolt attachment 33.

[0089] In the first state and the second state, one 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 closing the door, the inclined tongue assembly 3 of the lock body cooperates with the buckle plate 2, and the inclined tongue attachment 33 moves into the lock shell 1, and the first sensor 351 switches from the previous first state to the second state.

[0090] The inclined tongue attachment 33 of the present application is slidably arranged on the inclined tongue body 31, which can make the structure more compact compared to the structure in which the trigger tongue and the inclined tongue assembly 3 are arranged side by side. The inclined tongue assembly 3 of the present application can determine the state of the inclined tongue attachment 33 through the first sensor 351, that is, it can achieve the same function as the existing trigger tongue assembly.

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

[0092] like Figure 1 to Figure 6 As shown, in this embodiment, the circuit board 35 further has a second sensor 352, and the second sensor 352 has a third state and a fourth state. The second sensor 352 cooperates with the inclined tongue body 31, and the second sensor 352 switches between the third state and the fourth state according to the position change of the inclined tongue body 31;

[0093] In the third state and the fourth state, one 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 bolt assembly 3 has a door-opening state, a door-not-fully-closed state, and a door-fully-closed state;

[0095] When the latch bolt assembly 3 is in the door opening state, Figure 1 and Figure 2 , the oblique tongue portion 311 of the oblique tongue body 31 extends out of the lock housing 1, the second sensor 352 is in the third state, the oblique tongue attachment 33 extends out of the lock housing 1, and the first sensor 351 is in the first state;

[0096] When the latch assembly 3 is in the state of not closing the door, Figure 3 and Figure 4 , the oblique tongue portion 311 of the oblique tongue body 31 is pressed and moves back into the lock housing 1, the second sensor 352 is in the fourth state, the oblique tongue attachment 33 is also moved back into the lock housing 1 under the drive of the oblique tongue body 31, and the first sensor 351 is in the second state;

[0097] When the latch assembly 3 is in the door closing position, Figure 5 and Figure 6The oblique tongue portion 311 of the oblique tongue body 31 extends out of the lock housing 1, the second sensor 352 is in the third state, the oblique tongue attachment 33 abuts against the buckle plate 2, the oblique tongue attachment 33 is in a compressed retracted 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 fully closed based on the signal changes of the first sensor 351 and the second sensor 352, and send a signal to automatically extend the main lock tongue assembly 4 of the lock body out of the lock shell 1 after the door is fully closed. 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 fully closed.

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

[0100] like Figure 8 to Figure 11 As shown, in this embodiment, the oblique tongue attachment 33 has a small tongue portion 331 and a mounting portion 332 connected to each other, and the mounting portion 332 is slidably mounted on the rod portion 312. There are many ways of sliding installation, such as sleeve installation, such as through the track form, etc.

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

[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 housing 1 , and the other end cooperates with the rod 312 directly or indirectly.

[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 housing 1, and the other end cooperates directly or indirectly with the mounting portion 332; or, the second elastic member 34 is a spring, the second elastic member 34 is sleeved on the rod 312, one end of the second elastic member 34 cooperates with the lock housing 1 or the rod 312, and the other end cooperates with the mounting portion 332.

[0104] The mounting portion 332 is sleeved on the rod portion 312, and this structure is easy to install; when the inclined tongue assembly 3 is in the door opening state, the mounting portion 332 is abutted against the inclined tongue portion 311. At this time, when the door is closed, the inclined tongue portion 311 is retracted into the lock housing 1 by the force of the buckle plate 2, which will drive the mounting portion 332 to retract into the lock housing 1 synchronously.

[0105] like Figure 8 to Figure 11As shown, in this embodiment, the oblique tongue portion 311 has a compressed retracting surface 311a and a thrust surface 311b, the compressed retracting surface 311a is an inclined surface or an arc surface, and the thrust surface 311b has a slide groove 3111, and the small tongue portion 331 slides in cooperation with the slide groove 3111.

[0106] The design of the slide groove 3111 can limit the small tongue portion 331, so that the movement of the entire oblique tongue attachment 33 is more stable and reliable.

[0107] like Figure 5 , 6 As shown in FIGS. 8 and 9 , in this embodiment, the small tongue portion 331 has a portion protruding from the slide groove 3111 , and when the inclined tongue assembly 3 is in the door closing state, the end surface of the portion of the small tongue portion 331 protruding from the slide groove 3111 contacts and cooperates with the buckle plate 2 .

[0108] The small tongue portion 331 has a portion protruding from the slide groove 3111. This arrangement can remain unchanged without changing the buckle plate 2 (the buckle plate 2 has various styles, and not changing the buckle plate 2 can effectively reduce the installation efficiency and cost of the lock body). When the inclined tongue assembly 3 is in the door opening state, the inclined tongue body 31 extends into the limiting hole 21 of the buckle plate 2, and because the small tongue portion 331 has a portion protruding from the slide groove 3111, the protruding portion can continue to contact the buckle plate 2, so that the inclined tongue attachment 33 is in a retracted state.

[0109] like Fig. 9 As shown, in this embodiment, the small tongue portion 331 protrudes out of the avoidance groove 111 along its length direction.

[0110] like Figure 1 to Figure 6 As shown, in this embodiment, the rod portion 312 has a first trigger portion 3121 that cooperates with the first sensor 351, and the latch bolt attachment 33 has a second trigger portion 3321 that cooperates with the second sensor 352. Specifically, the mounting portion 332 of the latch bolt attachment 33 has a second trigger portion 3321.

[0111] like Figure 22 to Figure 31 As shown, the main bolt assembly 4 of the lock body includes:

[0112] The main lock tongue body 41 is slidably disposed on the lock housing 1. The main lock tongue body 41 has a main lock tongue portion 411 and a main lock tongue plate 412 connected to each other. The main lock tongue plate 412 has a driving groove 4121. The main lock tongue body 41 has an extended state and a retracted state.

[0113] The main lock tongue toggle block 42 is rotatably mounted on the lock housing 1. The main lock tongue toggle block 42 can rotate around the first rotation axis 5. The main lock tongue toggle block 42 has a driving portion 421 extending into the driving groove 4121. When the main lock tongue toggle block 42 rotates, the main lock tongue body 41 can be driven to slide through the cooperation of the driving portion 421 and the driving groove 4121. The main lock tongue toggle block 42 has a first position and a second position. When the main lock tongue toggle block 42 is in the first position, the main lock tongue body 41 is in an extended state. When the main lock tongue toggle block 42 is in the second position, the main lock tongue body 41 is in a retracted state.

[0114] The rotating paddle 43 is rotatably mounted on the lock housing 1 and relatively fixed to the main lock tongue toggle block 42, and can rotate synchronously with the main lock tongue toggle block 42. The rotating paddle 43 has a first pressure-bearing portion 431 and a first matching portion 432 disposed adjacent to the first rotation axis 5;

[0115] Lock cylinder 44, see Fig.15 , mounted on the lock housing 1, the lock core 44 has a lock cam 441, and the lock cam 441 has an initial position, an unlocking position and a locking position;

[0116] A lock paddle 45 is movably disposed on the lock housing 1 . The lock paddle 45 has a second pressure-bearing portion 451 and a second matching portion 452 . The second pressure-bearing portion 451 is located at one side of the lock core 44 and adjacent to the lock cam 441 .

[0117] The motor transmission member 46 is rotatably mounted on the lock housing 1. A transmission structure is provided between the motor transmission member 46 and the main lock tongue toggle block 42. The transmission structure includes an arc-shaped hole 422 and a convex block 461 extending into the arc-shaped hole 422. One of the arc-shaped hole 422 and the convex block 461 is provided on the motor transmission member 46, and the other is provided on the main lock tongue toggle block 42. The motor transmission member 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 toggle block 42 to rotate;

[0118] When the lock cam 441 rotates from the initial position to the unlocking position, the lock cam 441 contacts and cooperates with the second pressure-bearing portion 451, driving the lock paddle 45 to move. After the lock paddle 45 moves, the second matching portion 452 contacts and cooperates with the first matching portion 432, driving the rotating paddle 43 and the main lock tongue toggle block 42 to rotate synchronously, and finally switching the main lock tongue body 41 from the extended state to the retracted state.

[0119] When the lock cam 441 rotates from the initial position to the unlocking position, the lock cam 441 contacts and cooperates with the first pressure-bearing portion 431, driving the rotating paddle 43 and the main lock tongue paddle block 42 to rotate synchronously, and finally switching the main lock tongue body 41 from the retracted state to the extended state.

[0120] The main lock tongue assembly 4 of the present application, the second pressure-bearing portion 451 is located on one side of the lock core 44 and adjacent to the lock cam 441. The lock cam 441 can drive the lock paddle 45 to move by rotating a small angle. The first matching portion 432 of the main lock tongue toggle block 42 is arranged adjacent to the first rotation axis 5. In this way, the first matching portion 432 only needs to move within a small range to achieve a larger rotation angle of the main lock tongue toggle block 42. The combination of the two ("the second pressure-bearing portion 451 is located on one side of the lock core 44 and adjacent to the lock cam 441" and "the first matching portion 432 is arranged adjacent to the first rotation axis 5") can make the main lock tongue assembly 4 rotate at a smaller angle when unlocking with a key, and the unlocking process takes a shorter time.

[0121] The transmission structure is designed to enable the motor transmission member 46 to rotate the set angle after the motor transmission member 46 drives the main lock tongue body 41 to the extended state or the retracted state, so that when the key is unlocked (the lock head cam 441 of the lock cylinder 44 is turned to unlock), the lock body 41 is unlocked. Fig.30 and Fig.31 , the motor transmission member 46 will not be driven to rotate (when the key is unlocked, the main lock tongue toggle block 42 is driven to rotate, the protrusion 461 moves in the arc hole 422, and the motor transmission member 46 is different), making it easier to unlock with the key.

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

[0123] like Fig.29 As shown, in this embodiment, the main bolt plate 412 is located between the main bolt toggle block 42 and the rotating paddle 43. In this way, the main bolt plate 412 is evenly stressed and more stable and reliable during movement.

[0124] like Fig. 27 As shown, in this embodiment, the driving portion 421 is disposed on the driving slot 4121;

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

[0126] like Fig. 22 , 27 As shown in FIG. 29 , in this embodiment, the rotating paddle 43 further has a third matching portion 433 , and the third matching portion 433 and the first matching portion 432 are both located on the same side of the first rotation axis 5 , and the distance between the third matching portion 433 and the first rotation axis 5 is greater than the distance between the first matching portion 432 and the first rotation axis 5 ;

[0127] The lock paddle 45 has a fourth matching portion 453 matching with the third matching portion 433;

[0128] During the process of the lock cam 441 rotating from the initial position to the unlocked position, the lock cam 441 contacts and cooperates with the second pressure-bearing portion 451, driving the lock paddle 45 to move. At the beginning, the fourth matching portion 453 of the lock paddle 45 contacts and cooperates with the third matching portion 433, driving the rotating paddle 43 to rotate, and then the fourth matching portion 453 and the third matching portion 433 are no longer in contact and cooperate, but the second matching portion 452 contacts and cooperates with the first matching portion 432, continuing to drive the rotating paddle 43 to rotate, and finally the main lock tongue body 41 is switched from the extended state to the retracted state.

[0129] The first matching portion 432 is arranged adjacent to the first rotation axis 5, which results in a smaller force arm. When the key is first turned, a larger force needs to be applied to the key. In the present application, the third matching portion 433 (the distance between the third matching portion 433 and the first rotation axis 5 is greater than the distance between the first matching portion 432 and the first rotation axis 5) and the fourth matching portion 453 are arranged so that when the key is first unlocked, Fig. 22 and 24 , it is the third matching portion 433 and the fourth matching portion 453 that drive the rotating paddle 43 to rotate. Compared with the initial cooperation with the first matching portion 432, the force arm is increased, which can better drive the rotating paddle 43 to rotate. Then the fourth matching portion 453 and the third matching portion 433 are no longer in contact and cooperate, but the second matching portion 452 and the first matching portion 432 are in contact and cooperate, continuing to drive the rotating paddle 43 to rotate, and finally the main lock tongue body 41 is switched from the extended state to the retracted state.

[0130] In this embodiment, the first matching portion 432 and the third matching portion 433 are respectively located on two sides of the lock paddle 45. This arrangement is compact.

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

[0132] like Fig. 22 and 27 As shown, in this embodiment, the motor transmission member 46 has a tooth portion 462 , and the tooth portion 462 is used to cooperate with the motor assembly 6 .

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

[0134] A driving gear 61 is rotatably mounted on the lock housing 1, and the driving gear 61 is meshed with the tooth portion 462 of the motor transmission member 46;

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

[0136] like Figure 22 to Figure 26As shown, in this embodiment, the latch bolt assembly 3 has an extended state and a retracted state; the lock body also includes:

[0137] A handle shaft 71 is rotatably mounted on the lock housing 1 and is used for mounting a handle; and

[0138] The handle paddle 72 is mounted on the handle shaft 71 and can rotate relative to the handle shaft 71. The handle paddle 72 has a fifth matching portion 721 and a sixth matching portion 722. The fifth matching portion 721 matches with the oblique tongue assembly 3 to switch the oblique tongue assembly 3 from an extended state to a retracted state.

[0139] The lock paddle 45 has an unlocking portion 454. During the process of the lock cam 441 rotating from the initial position to the unlocking position, the lock cam 441 contacts and cooperates with the second pressure-bearing portion 451, driving the lock paddle 45 to move. After the lock paddle 45 moves, the unlocking portion 454 abuts against the sixth matching portion 722 to rotate the handle paddle 72, and finally the inclined tongue assembly 3 is switched from the extended state to the retracted state through the fifth matching portion 721 of the handle paddle 72.

[0140] Example 2

[0141] like Fig.12 , 13 As shown in Figures 14 and 14, the difference between this embodiment and embodiment 1 is that the buckle plate 2 has a limiting hole 21 for the inclined tongue body 31 to be inserted into, and the buckle plate 2 also has a protrusion 22 extending into the limiting hole 21; the small tongue portion 331 is completely embedded in the slide groove 3111, and when the inclined tongue assembly 3 is in the closed state, the inclined tongue body 31 extends into the limiting hole 21 and the small tongue portion 331 contacts and cooperates with the protrusion 22.

[0142] The small tongue portion 331 is completely embedded in the slide groove 3111, which means that the small tongue portion 331 has no part protruding from the slide groove 3111. This arrangement can maintain the thickness of the lock body, that is, the thickness of the lock body does not need to be increased due to the small tongue portion 331 protruding from the slide groove 3111.

[0143] Example 3

[0144] like Figure 16 to Figure 21 As shown, the difference between this embodiment and embodiment 1 is that: the end of the small tongue portion 331 away from the mounting portion 332 has a protruding block 3311 protruding from the slide groove 3111, the lock housing 1 has an avoidance groove 111 for the protruding block 3311 to be embedded in, and when the inclined tongue assembly 3 is in the closed position, the protruding block 3311 abuts against the buckle plate 2, and the protruding block 3311 is at least partially embedded in the avoidance groove 111.

[0145] Compared with other structural forms, the configuration of the small tongue portion 331 does not increase the thickness of the lock body and does not require special design of the buckle plate 2.

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

[0147] like Fig.16 and Fig.17 As shown, in this embodiment, the side of the protruding block 3311 close to the mounting portion 332 has an inclined or arc-shaped first guide surface 33111, and the farther the protruding block 3311 is from the slide groove 3111, the smaller the thickness of the protruding block 3311; the avoidance groove 111 has a second guide surface 1111 adapted to the guide surface.

[0148] The cooperation between the first guide surface 33111 and the second guide surface 1111 will not affect the insertion of the protruding block 3311 into the avoidance groove 111 when the latch bolt assembly 3 is in the closed state, but can reduce the amount of corresponding material that needs to be removed from the lock shell 1 due to the arrangement of the avoidance 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 provided, the protruding block 3311 is a block with a certain thickness, and a larger avoidance groove 111 is required at this time, which will remove more material and affect the structural strength.

[0149] like Fig. 20 and 21 As shown, in this embodiment, the lock housing 1 includes a relatively fixed vertical plate 11 and a panel 12, the inclined tongue body 31 and the inclined tongue attachment 33 are penetrated on the vertical plate 11, the avoidance groove 111 is located on the vertical plate 11, and the panel 12 has a notch 121 at one end close to the vertical plate 11. A reinforcement member 13 is fixed to a side of the vertical plate 11 facing the notch 121, and the reinforcement member 13 is embedded in the notch 121. The avoidance groove 111 corresponds to the position of the reinforcement member 13.

[0150] The reinforcement member 13 can enhance the structural strength of the vertical plate 11 and prevent the problem of the structural strength of the vertical plate 11 being reduced due to the avoidance groove 111 . The reinforcement member 13 is particularly suitable for the lock housing 1 with a smaller vertical plate 11 width.

[0151] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. A lock body, characterized in that: It includes a lock body, an inclined bolt assembly and a main bolt assembly installed on the lock body; the inclined bolt assembly includes: The oblique tongue body is slidably arranged in the lock housing, and the oblique tongue body comprises an oblique tongue portion and a rod portion connected to each other. A first elastic member is disposed on the lock housing and is used to directly or indirectly cooperate with the oblique tongue body so that the oblique tongue body has a movement tendency to move toward the outside of the lock housing; An oblique bolt attachment is slidably arranged on the oblique bolt body, and when the oblique bolt body slides into the lock housing, it can drive the oblique bolt attachment to move into the lock housing together; A second elastic member is disposed on the lock housing and is used to directly or indirectly cooperate with the oblique bolt attachment to make the oblique bolt attachment have a movement tendency to move toward the outside of the lock housing; and A circuit board is arranged in the lock housing, 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 bolt attachment, and the first sensor switches between the first state and the second state according to the position change of the latch bolt attachment, the second sensor cooperates with the latch bolt body, and the second sensor switches between the third state and the fourth state according to the position change of the latch bolt body; In the first state and the second state, one is that the first sensor is in a triggered state, and the other is that the first sensor is in a non-triggered state; in the third state and the fourth state, one 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 bolt assembly has a door-opening state, a door-not-fully-closed state, and a door-fully-closed state; When the latch bolt assembly is in the door opening state, the latch bolt portion of the latch bolt body extends out of the lock housing, the second sensor is in the third state, the latch bolt attachment extends out of the lock housing, and the first sensor is in the first state; When the latch bolt assembly is in the state of not fully closing the door, the latch bolt portion of the latch bolt body is pressed to move into the lock housing and retract, the second sensor is in the fourth state, the latch bolt attachment is also driven by the latch bolt body to move into the lock housing and retract, and the first sensor is in the second state; When the latch bolt assembly is in the door closing position, the latch bolt portion of the latch bolt body extends out of the lock housing, the second sensor is in the third position, the latch bolt attachment abuts against the buckle plate, the latch bolt attachment is in a compressed retracted position, and the first sensor is in the second position.

2. The lock body according to claim 1, characterized in that: The oblique tongue accessory comprises a small tongue portion and a mounting portion connected to each other, the mounting portion is slidably mounted on the rod portion, and when the oblique tongue assembly is in a door opening state, the mounting portion abuts against the oblique tongue portion; The oblique tongue portion has a pressure-bearing retracting surface and a thrust surface, the pressure-bearing retracting surface is an inclined surface or an arc-shaped surface, the thrust surface has a sliding groove, and the small tongue portion is slidably matched with the sliding groove.

3. The lock body according to claim 2, characterized in that: The small tongue has a portion protruding from the slide slot, and when the inclined tongue assembly is in a closed state, the end surface of the portion of the small tongue protruding from the slide slot contacts and cooperates with the buckle plate; Alternatively, the buckle plate has a limiting hole for the inclined tongue body to be inserted into, and the buckle plate also has a convex portion extending into the limiting hole; the small tongue portion is completely embedded in the sliding groove, and when the inclined tongue assembly is in a closed state, the inclined tongue body extends into the limiting hole and the small tongue portion contacts and cooperates with the convex portion.

4. The lock body according to claim 3, characterized in that: The end of the small tongue portion away from the mounting portion has a protruding block protruding from the slide groove, and the lock shell has an avoidance groove for the protruding block to be embedded in. When the inclined tongue assembly is in the closed state, the protruding block abuts against the buckle plate, and the protruding block is at least partially embedded in the avoidance groove.

5. The lock body according to claim 4, characterized in that: The protruding block has an inclined or arc-shaped first guide surface on one side close to the mounting portion, and the thickness of the protruding block decreases as the protruding block moves away from the slide groove; the avoidance groove has a second guide surface adapted to the guide surface.

6. The lock body according to claim 4, characterized in that: The lock housing comprises a relatively fixed vertical plate and a panel, the inclined tongue main body and the inclined tongue accessories are arranged on the vertical plate, the avoidance groove is located on the vertical plate, the panel has a notch at one end close to the vertical plate, a reinforcement is fixed on a side of the vertical plate facing the notch, the reinforcement is embedded in the notch, and the avoidance groove corresponds to the position of the reinforcement.

7. The lock body according to claim 1, characterized in that: 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 housing, and the other end is directly or indirectly matched with the rod; The second elastic member is a spring, a tension spring or a torsion spring, one end of the first elastic member cooperates with the lock housing, and the other end cooperates directly or indirectly with the mounting part; or, the second elastic member is a spring, the second elastic member is sleeved on the rod, one end of the second elastic member cooperates with the lock housing or the rod, and the other end cooperates with the mounting part.

8. The lock body according to claim 1, characterized in that: The main deadbolt assembly includes: A main lock tongue body is slidably arranged on the lock housing, the main lock tongue body comprises a main lock tongue portion and a main lock tongue plate connected to each other, the main lock tongue plate comprises a driving groove, and the main lock tongue body has an extended state and a retracted state; A main lock tongue toggle block is rotatably mounted on the lock housing, the main lock tongue toggle block can rotate around a first rotation axis, the main lock tongue toggle block has a driving portion extending into the driving groove, and when the main lock tongue toggle block rotates, the main lock tongue body can be driven to slide through the cooperation of the driving portion and the driving groove, the main lock tongue toggle block has a first position and a second position, when the main lock tongue toggle block is in the first position, the main lock tongue body is in an extended state, and when the main lock tongue toggle block is in the second position, the main lock tongue body is in a retracted state; A rotating paddle is rotatably mounted on the lock housing, relatively fixed to the main lock tongue toggle block, and can rotate synchronously with the main lock tongue toggle block, wherein the rotating paddle has a first pressure-bearing portion and a first matching portion disposed adjacent to the first rotation axis; A lock core is mounted on the lock housing, wherein the lock core has a lock cam, and the lock cam has an initial position, an unlocking position, and a locking position; A lock paddle, movably arranged on the lock housing, the lock paddle having a second pressure-bearing portion and a second matching portion, wherein the second pressure-bearing portion is located at one side of the lock core and adjacent to the lock cam; A motor assembly is mounted on the lock housing, and the motor assembly is electrically connected to the circuit board; and A motor transmission member is rotatably mounted on the lock housing, and a transmission structure is provided between the motor transmission member and the main lock tongue toggle block, wherein the transmission structure comprises an arc-shaped hole and a convex block extending into the arc-shaped hole, wherein one of the arc-shaped hole and the convex block is arranged on the motor transmission member, and the other is arranged on the main lock tongue toggle block, and the motor assembly of the motor transmission member cooperates, and is driven by the motor assembly of the lock body to rotate, thereby driving the main lock tongue toggle block to rotate; When the lock cam rotates from the initial position to the unlocking position, the lock cam contacts and cooperates with the second pressure-bearing portion, driving the lock paddle to move. After the lock paddle moves, the second matching portion contacts and cooperates with the first matching portion, driving the rotating paddle and the main lock tongue toggle block to rotate synchronously, and finally switching the main lock tongue body from the extended state to the retracted state. When the lock cam rotates from the initial position to the locking position, the lock cam contacts and cooperates with the first pressure-bearing portion, driving the rotating paddle and the main lock tongue paddle block to rotate synchronously, and finally switching the main lock tongue body from the retracted state to the extended state.

9. The lock body according to claim 8, characterized in that: The rotating paddle also has a third matching portion, the third matching portion and the first matching portion are both located 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; The lock paddle has a fourth matching portion that matches with the third matching portion; During the process of the lock cam rotating from the initial position to the unlocked position, the lock cam contacts and cooperates with the second pressure-bearing part, driving the lock paddle to move. At the beginning, the fourth matching part of the lock paddle contacts and cooperates with the third matching part, driving the rotating paddle to rotate. Then the fourth matching part and the third matching part are no longer in contact and cooperate, but the second matching part contacts and cooperates with the first matching part, continuing to drive the rotating paddle to rotate, and finally switching the main lock tongue body from the extended state to the retracted state.

10. The lock body according to claim 9, characterized in that: The latch bolt assembly has an extended state and a retracted state; the lock body also includes: A handle shaft, rotatably mounted on the lock housing, for mounting the handle; and A handle paddle is mounted on the handle shaft and can rotate relative to the handle shaft. The handle paddle has a fifth matching portion and a sixth matching portion. The fifth matching portion matches with the rod portion of the oblique bolt assembly to switch the oblique bolt assembly from an extended state to a retracted state. The lock paddle has an unlocking portion. During the process of the lock cam rotating from the initial position to the unlocking position, the lock cam contacts and cooperates with the second pressure-bearing portion to drive the lock paddle to move. After the lock paddle moves, the unlocking portion abuts against the sixth matching portion to rotate the handle paddle, and finally the inclined tongue assembly is switched from the extended state to the retracted state through the fifth matching portion of the handle paddle.

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