Main spring bolt assembly of lock body and lock body

Abstract

The utility model discloses a main spring bolt assembly of a lock body and the lock body, and the main spring bolt assembly comprises a main spring bolt body and a main spring bolt, the main spring bolt shifting block can rotate around a first rotating axis, and the main spring bolt shifting block is matched with the main spring bolt body; the rotating shifting piece is fixed relative to the main spring bolt shifting block and is provided with a first pressed part and a first matching part arranged adjacent to the first rotating axis; the lock cylinder is provided with a lock head cam, and the lock head cam is provided with an initial position and an unlocking position; the lock head shifting piece is provided with a second pressed part and a second matching part, and the second pressed part is located on one side of the lock cylinder and is adjacent to the lock head cam; in the process that the lock head cam rotates to the unlocking position from the initial position, the lock head cam is in contact fit with the second pressed part to drive the lock head shifting piece to move, the second matching part is in contact fit with the first matching part to drive the rotating shifting piece and the main spring bolt shifting block to rotate synchronously, and the main spring bolt body is switched to the retracting state from the stretching state. The rotating angle is small when a key is used for unlocking.

Description

Technical Field

[0001] This utility model relates to the field of lock bodies, specifically to the main bolt assembly of a lock body and the lock body itself. Background Technology

[0002] Automated lock bodies include a main bolt assembly that can be driven by a motor assembly. The main bolt assembly typically includes a key unlocking mechanism. When the motor assembly loses power or malfunctions, the lock cylinder can be rotated by inserting a key to unlock and lock. In existing structures, the key needs to be rotated at a relatively large angle to unlock, making the unlocking process time-consuming. Utility Model Content

[0003] This utility model addresses the above-mentioned problems by proposing a main bolt assembly for the lock body and a lock body.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A main bolt assembly for a lock body, the lock body including a lock shell, the main bolt assembly of the lock body including:

[0006] The main bolt body is slidably mounted on the lock housing. The main bolt body has a main bolt portion and a main bolt plate that are connected to each other. The main bolt plate has a drive groove. The main bolt body has an extended state and a retracted state.

[0007] The main bolt actuating block is rotatably mounted on the lock housing. The main bolt actuating block can rotate around a first rotation axis. The main bolt actuating block has a driving part that extends into the driving groove. When the main bolt actuating block rotates, it can drive the main bolt body to slide through the cooperation of the driving part and the driving groove. The main bolt actuating block has a first position and a second position. When the main bolt actuating block is in the first position, the main bolt body is in an extended state. When the main bolt actuating block is in the second position, the main bolt body is in a retracted state.

[0008] The rotating paddle is rotatably mounted on the lock housing and fixed relative to the main bolt actuating block. It can rotate synchronously with the main bolt actuating block. The rotating paddle has a first pressure-receiving part and a first mating part disposed adjacent to the first rotation axis.

[0009] A lock cylinder, mounted on a lock housing, has a lock head cam having an initial position, an unlocked position, and a locked position;

[0010] A lock cylinder lever, movably mounted on the lock housing, the lock cylinder lever having a second pressure-receiving portion and a second mating portion, the second pressure-receiving portion being located on one side of the lock cylinder and adjacent to the lock cylinder cam; and

[0011] A motor drive component is rotatably mounted on the lock housing. A transmission structure exists between the motor drive component and the main latch actuating block. The transmission structure includes an arc-shaped hole and a protrusion extending into the arc-shaped hole. One of the arc-shaped hole and the protrusion is disposed on the motor drive component, and the other is disposed on the main latch actuating block. The motor drive component is used to cooperate with the motor assembly of the lock body and is driven to rotate by the motor assembly of the lock body, thereby driving the main latch actuating block to rotate.

[0012] During the process of the lock head cam rotating from the initial position to the unlock position, the lock head cam contacts and engages with the second pressure part, driving the lock head lever to move. After the lock head lever moves, the second engagement part contacts and engages with the first engagement part, driving the rotating lever and the main lock tongue lever block to rotate synchronously, ultimately causing the main lock tongue body to switch from the extended state to the retracted state.

[0013] When the lock head cam rotates from the initial position to the unlocked position, the lock head cam contacts and engages with the first pressure part, driving the rotating paddle and the main lock tongue actuating block to rotate synchronously, ultimately causing the main lock tongue body to switch from the retracted state to the extended state.

[0014] In this application, the second pressure-bearing part of the main bolt assembly is located on one side of the lock cylinder and adjacent to the lock head cam. The lock head cam can drive the lock head lever to move with a small rotation angle. The first mating part of the main bolt lever block is located adjacent to the first rotation axis. In this way, the first mating part only needs to move a small range to realize the main bolt lever block to rotate a large angle. The combination of the two ("the second pressure-bearing part is located on one side of the lock cylinder and adjacent to the lock head cam" and "the first mating part is located adjacent to the first rotation axis") can make the main bolt assembly rotate a small angle when unlocked with a key, and the unlocking process takes a short time.

[0015] The transmission structure is designed so that after the motor drive component drives the main lock tongue body to the extended or retracted state, the motor drive component can rotate back to a set angle. This way, when unlocking with a key (the lock cylinder cam rotates to the unlock position), the motor drive component will not be driven to rotate (when unlocking with a key, the main lock tongue actuating block rotates, and the protrusion moves in the arc-shaped hole, which is different from the motor drive component), making it easier to unlock with a key.

[0016] In one embodiment of the present invention, when the lock cam rotates from the initial position to the unlocked position, the angle of rotation of the lock cam is less than or equal to 90°.

[0017] In one embodiment of the present invention, the main latch plate is located between the main latch actuating block and the rotating paddle.

[0018] This design ensures even force distribution on the main locking tongue plate, resulting in greater stability and reliability during operation.

[0019] In one embodiment of the present invention, the driving part passes through the driving groove;

[0020] One end of the drive unit is fixed to the main locking tongue actuation block, and the other end is inserted into the rotating paddle; or, one end of the drive unit is fixed to the rotating paddle, and the other end is inserted into the main locking tongue actuation block.

[0021] In one embodiment of the present invention, the rotating paddle also has a third mating part, the third mating part and the first mating part are both located on the same side of the first rotation axis, and the distance of the third mating part from the first rotation axis is greater than the distance of the first mating part from the first rotation axis;

[0022] The lock lever has a fourth mating part that mates with the third mating part;

[0023] During the process of the lock head cam rotating from the initial position to the unlocked position, the lock head cam contacts and engages with the second pressure part, driving the lock head lever to move. At first, the fourth engagement part of the lock head lever contacts and engages with the third engagement part, driving the lever to rotate. Then, the fourth engagement part and the third engagement part no longer contact and engage, but the second engagement part contacts and engages with the first engagement part, continuing to drive the lever to rotate, ultimately causing the main bolt body to switch from the extended state to the retracted state.

[0024] The first mating part is located near the first rotation axis, which results in a small lever arm. At the beginning of the rotation, a large force needs to be applied to the key. This application solves this problem by setting a third mating part (the distance between the third mating part and the first rotation axis is greater than the distance between the first mating part and the first rotation axis) and a fourth mating part. At the beginning of unlocking, the third and fourth mating parts drive the rotating lever to rotate. Compared with the initial engagement with the first mating part, the lever arm is increased, which can drive the rotating lever to rotate better. Then, the fourth mating part no longer engages with the third mating part, but the second mating part engages with the first mating part to continue driving the rotating lever to rotate, and finally the main lock tongue body switches from the extended state to the retracted state.

[0025] In one embodiment of this utility model, the first mating part and the third mating part are respectively located on both sides of the lock head lever. This arrangement results in a compact structure.

[0026] In one embodiment of this utility model, the lock head lever is slidably disposed on the lock housing.

[0027] In one embodiment of the present invention, the motor transmission component has teeth, which are used to cooperate with the motor assembly.

[0028] This application also discloses a lock body, including a lock shell, a motor assembly mounted on the lock shell, and a main bolt assembly of the lock body described above mounted on the lock shell;

[0029] The motor assembly includes:

[0030] A drive gear is rotatably mounted on the lock housing, and the drive gear meshes with the teeth of the motor transmission component;

[0031] A drive motor is used to drive the drive gear to rotate.

[0032] In one embodiment of the present invention, it further includes:

[0033] A tongue assembly, which has an extended state and a retracted state;

[0034] The handle shaft, rotatably mounted on the lock housing, is used to mount the handle; and

[0035] A handle lever is mounted on the handle shaft and can rotate relative to the handle shaft. The handle lever has a fifth mating part and a sixth mating part. The fifth mating part cooperates with the tongue assembly to switch the tongue assembly from the extended state to the retracted state.

[0036] The lock head lever has an unlocking part. During the process of the lock head cam rotating from the initial position to the unlocking position, the lock head cam contacts and engages with the second pressure part, driving the lock head lever to move. After the lock head lever moves, the unlocking part abuts against the sixth engaging part, causing the handle lever to rotate. Finally, the latch assembly is switched from the extended state to the retracted state through the fifth engaging part of the handle lever.

[0037] The beneficial effects of this utility model are as follows: In the main bolt assembly of this application, the second pressure-bearing part is located on one side of the lock cylinder and adjacent to the lock head cam. The lock head cam can drive the lock head lever to move with a small rotation angle. The first mating part of the main bolt lever block is arranged adjacent to the first rotation axis. In this way, the first mating part only needs to move a small range to realize the main bolt lever block to rotate a large angle. The combination of the two ("the second pressure-bearing part is located on one side of the lock cylinder and adjacent to the lock head cam" and "the first mating part is arranged adjacent to the first rotation axis") can make the main bolt assembly rotate a small angle when unlocking with a key, and the unlocking process takes a short time. Attached Figure Description

[0038] Figure 1 This is a partial schematic diagram of the lock body in the open state of the latch assembly in Embodiment 1;

[0039] Figure 2 This is a schematic diagram of the lock body from another angle when the latch assembly is in the open state, as shown in Embodiment 1.

[0040] Figure 3 This is a schematic diagram of the lock body and the latch plate in the case where the latch assembly is not fully closed, as shown in Example 1.

[0041] Figure 4This is a schematic diagram of the lock body and the latch plate at another angle when the latch assembly of Embodiment 1 is not fully closed;

[0042] Figure 5 This is a schematic diagram of the lock body and the latch plate in the closed position of the latch assembly in Embodiment 1;

[0043] Figure 6 This is a schematic diagram of the lock body and the latch plate from another angle when the latch assembly of Embodiment 1 is in the closed position.

[0044] Figure 7 This is a front view of the lock body after the hidden portion of the lock case in Embodiment 1;

[0045] Figure 8 yes Figure 7 Sectional view of AA;

[0046] Figure 9 This is a schematic diagram of the oblique tongue assembly in Embodiment 1;

[0047] Figure 10 This is a schematic diagram of the tongue assembly in Embodiment 1 from another angle;

[0048] Figure 11 This is an exploded view of the oblique tongue assembly in Embodiment 1;

[0049] Figure 12 This is an exploded view of the lock body and strike plate of the latch assembly in the open state in Embodiment 2;

[0050] Figure 13 This is a schematic diagram of the lock body and the latch plate in the closed position of the latch assembly in Embodiment 2;

[0051] Figure 14 This is an exploded view of the oblique tongue assembly in Embodiment 2;

[0052] Figure 15 This is a schematic diagram of the lock cylinder;

[0053] Figure 16 This is a partial schematic diagram of the lock body in the open state of the latch assembly in Embodiment 3;

[0054] Figure 17 This is a schematic diagram of the tongue body and tongue attachment after separation in Example 3;

[0055] Figure 18 This is a schematic diagram of the lock body and the latch plate in the closed position of the latch assembly in Embodiment 3;

[0056] Figure 19 This is a schematic diagram of the lock body and the strike plate from another angle when the latch assembly is in the closed position as described in Embodiment 3.

[0057] Figure 20 This is a schematic diagram of the lock body with reinforcement in Embodiment 3;

[0058] Figure 21 This is a structural schematic diagram of the lock body with reinforcement in Embodiment 3 from another angle;

[0059] Figure 22 This is a schematic diagram of the lock body when the main bolt body is in the extended state and the lock body cam is in the initial position, as described in Embodiment 1.

[0060] Figure 23 This is a schematic diagram of the motor assembly in Embodiment 1 after the main locking tongue body is in the retracted state and the motor transmission component has rotated.

[0061] Figure 24 This is a schematic diagram of the lock body when the lock body cam is in the unlocked position in Embodiment 1;

[0062] Figure 25 This is a schematic diagram of the lock body when the lock body cam is in the locked position in Embodiment 1;

[0063] Figure 26 This is a schematic diagram of the motor assembly in Embodiment 1 causing the main locking tongue body to be in the extended state;

[0064] Figure 27 This is a schematic diagram of the motor assembly and main locking bolt assembly in Embodiment 1;

[0065] Figure 28 This is a schematic diagram of the motor assembly and main latch assembly from another angle in Embodiment 1;

[0066] Figure 29 This is an exploded view of the motor assembly and main latch assembly of Embodiment 1;

[0067] Figure 30 This is an exploded view of the lock body in Embodiment 1 with the main bolt body in an extended state, omitting some structural elements.

[0068] Figure 31 This is an exploded view of the lock body after the main bolt body is extended and the motor drive component is rotated, omitting some structural elements, in Embodiment 1.

[0069] The labels for the attached figures are as follows:

[0070] 1. Lock housing; 11. Vertical plate; 111. Clearance groove; 1111. Second guide surface; 12. Panel; 121. Notch; 13. Reinforcing member; 2. Buckle plate; 21. Limiting hole; 22. Protrusion; 3. Lug assembly; 31. Lug body; 311. Lug part; 311a. Pressure-retracted surface; 311b. Thrust surface; 3111. Slide groove; 312. Rod part; 3121. First trigger part; 32. First elastic element; 33. Lug accessory; 331. Small tongue part; 3311. Protrusion; 33111. First guide surface; 332. Mounting part; 3321. Second trigger part; 34. Second elastic element; 35. Circuit board; 351. First sensor; 352. Second sensor; 4. Main bolt assembly; 41 411. Main bolt body; 412. Main bolt portion; 413. Main bolt plate; 414. Drive groove; 42. Main bolt actuating block; 425. Drive unit; 426. Arc-shaped hole; 43. Rotating lever; 437. First pressure-bearing part; 438. First mating part; 439. Third mating part; 40. Lock cylinder; 440. Lock head cam; 45. Lock head lever; 46. Second pressure-bearing part; 452. Second mating part; 453. Fourth mating part; 454. Unlocking part; 46. Motor transmission component; 461. Protrusion; 462. Tooth; 5. First rotation axis; 6. Motor assembly; 61. Drive gear; 62. Drive motor; 71. Handle shaft; 72. Handle lever; 721. Fifth mating part; 722. Sixth mating part. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0072] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0073] 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.

[0074] The present invention will now be described in detail with reference to the accompanying drawings.

[0075] Example 1

[0076] like Figures 1 to 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.

[0077] like Figures 1 to 11 As shown, the oblique tongue assembly 3 in this embodiment includes:

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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

[0082] 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.

[0083] In the first state and the second state, one of them is that the first sensor 351 is in the triggered state, and the other is that the first sensor 351 is in the non-triggered state. When the door is closed, the latch assembly 3 of the lock body cooperates with the strike plate 2, the latch attachment 33 moves into the lock shell 1, and the first sensor 351 switches from the previous first state to the second state.

[0084] The oblique tongue attachment 33 of this application is slidably disposed on the oblique tongue body 31. Compared with the structure in which the trigger tongue and oblique tongue assembly 3 are arranged side by side, the structure can be more compact. The oblique tongue assembly 3 of this application can determine the state of the oblique tongue attachment 33 through the first sensor 351, that is, it can achieve the same function as the existing trigger tongue assembly.

[0085] In practical applications, the cross-section of the rod 312 can be circular or other shapes, or it can be a structure with a varying cross-section along the axial direction.

[0086] like Figures 1-6 As shown, in this embodiment, the circuit board 35 also has a second sensor 352, which has a third state and a fourth state. The second sensor 352 cooperates with the tongue body 31, and switches between the third state and the fourth state according to the position change of the tongue body 31.

[0087] In the third and fourth states, one is that the second sensor 352 is in the triggered state, and the other is that the second sensor 352 is in the non-triggered state;

[0088] The tongue assembly 3 has an open state, a closed but not fully closed state, and a fully closed state;

[0089] When the latch assembly 3 is in the open position, see Figure 1 and Figure 2 The oblique tongue part 311 of the oblique tongue body 31 extends out of the lock shell 1, the second sensor 352 is in the third state, the oblique tongue accessory 33 extends out of the lock shell 1, and the first sensor 351 is in the first state;

[0090] When the latch assembly 3 is in the closed-not-fully-positioned state, see Figure 3 and Figure 4 The tongue portion 311 of the tongue body 31 is pressed and moves into the lock housing 1 and retracts. The second sensor 352 is in the fourth state. The tongue attachment 33 is also moved into the lock housing 1 and retracted under the action of the tongue body 31. The first sensor 351 is in the second state.

[0091] When the latch assembly 3 is in the closed position, see Figure 5 and Figure 6The oblique tongue part 311 of the oblique tongue body 31 extends out of the lock shell 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 the compressed return state, and the first sensor 351 is in the second state.

[0092] In practical application, the circuit board 35 can determine whether the door is closed properly based on the signal changes of the first sensor 351 and the second sensor 352. After the door is closed properly, a signal is sent to cause the main bolt assembly 4 of the lock body to automatically extend out of the lock shell 1. Specifically, when the second sensor 352 changes from the first state to the second state and then back 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 has been completed and the door is closed properly.

[0093] In practical applications, the sensors can be the same sensors used in existing lock bodies, such as mechanical switch sensors. Other types of sensors, such as Hall effect sensors, can also be used.

[0094] like Figures 8-11 As shown, in this embodiment, the oblique tongue attachment 33 has a small tongue 331 and a mounting part 332 connected to each other, and the mounting part 332 is slidably mounted on the rod part 312. There are various ways to slide the mounting, such as a sleeve-type mounting or a track-type mounting.

[0095] like Figure 2 and 9 As shown, in this embodiment, the mounting part 332 is sleeved on the rod part 312, and when the tongue assembly 3 is in the open state, the mounting part 332 abuts against the tongue part 311.

[0096] In practical applications, the first elastic element 32 is a spring, tension spring or torsion spring. One end of the first elastic element 32 is engaged with the lock housing 1, and the other end is engaged directly or indirectly with the rod 312.

[0097] In practical applications, the second elastic element 34 is a spring, tension spring, or torsion spring, and one end of the first elastic element 32 is engaged with the lock housing 1, while the other end is engaged directly or indirectly with the mounting part 332; or, the second elastic element 34 is a spring, which is sleeved on the rod part 312, with one end of the second elastic element 34 engaged with the lock housing 1 or the rod part 312, and the other end engaged with the mounting part 332.

[0098] The mounting part 332 is sleeved on the rod part 312, which makes installation convenient. When the latch assembly 3 is in the open state, the mounting part 332 abuts against the latch part 311. When the door is closed, the latch part 311 retracts into the lock shell 1 under the force of the buckle plate 2, which will drive the mounting part 332 to retract into the lock shell 1 synchronously.

[0099] like Figures 8-11As shown, in this embodiment, the oblique tongue 311 has a pressure-retracting surface 311a and a thrust surface 311b. The pressure-retracting surface 311a is an inclined surface or an arc-shaped surface, and the thrust surface 311b has a groove 3111. The small tongue 331 slides in conjunction with the groove 3111.

[0100] The design of the groove 3111 can limit the small tongue 331, making the movement of the entire oblique tongue attachment 33 more stable and reliable.

[0101] like Figure 5 , 6 As shown in Figures 8 and 9, in this embodiment, the small tongue 331 has a portion protruding from the slide groove 3111. When the oblique tongue assembly 3 is in the closed position, the end face of the portion of the small tongue 331 protruding from the slide groove 3111 contacts and engages with the buckle plate 2.

[0102] The small tongue 331 has a portion that protrudes from the slide groove 3111. This design does not change the buckle plate 2 (the buckle plate 2 comes in various styles, and not changing the buckle plate 2 can effectively reduce the installation efficiency and cost of the lock body). When the latch assembly 3 is in the open state, the latch body 31 extends into the limiting hole 21 of the buckle plate 2, and because the small tongue 331 has a portion that protrudes from the slide groove 3111, this protruding portion can continue to contact the buckle plate 2, so that the latch attachment 33 is in the retracted state.

[0103] like Figure 9 As shown, in this embodiment, the small tongue 331 protrudes into the avoidance groove 111 along its own length direction.

[0104] like Figures 1-6 As shown, in this embodiment, the rod portion 312 has a first trigger portion 3121 that cooperates with the first sensor 351, and the oblique tongue attachment 33 has a second trigger portion 3321 that cooperates with the second sensor 352. Specifically, the mounting portion 332 of the oblique tongue attachment 33 has the second trigger portion 3321.

[0105] like Figures 22-31 As shown, the main bolt assembly 4 of the lock body includes:

[0106] The main bolt body 41 is slidably disposed on the lock housing 1. The main bolt body 41 has a main bolt portion 411 and a main bolt plate 412 connected to each other. The main bolt plate 412 has a drive groove 4121. The main bolt body 41 has an extended state and a retracted state.

[0107] The main latch actuating block 42 is rotatably mounted on the lock housing 1. The main latch actuating block 42 can rotate around the first rotation axis 5. The main latch actuating block 42 has a driving part 421 that extends into the driving groove 4121. When the main latch actuating block 42 rotates, it can drive the main latch body 41 to slide through the cooperation of the driving part 421 and the driving groove 4121. The main latch actuating block 42 has a first position and a second position. When the main latch actuating block 42 is in the first position, the main latch body 41 is in the extended state. When the main latch actuating block 42 is in the second position, the main latch body 41 is in the retracted state.

[0108] Rotating paddle 43 is rotatably mounted on the lock housing 1 and fixed relative to the main lock tongue actuating block 42. It can rotate synchronously with the main lock tongue actuating block 42. Rotating paddle 43 has a first pressure-bearing part 431 and a first mating part 432 disposed adjacent to the first rotation axis 5.

[0109] Lock cylinder 44, see Figure 15 Installed on the lock housing 1, the lock cylinder 44 has a lock head cam 441, which has an initial position, an unlocked position and a locked position;

[0110] A lock cylinder lever 45 is movably mounted on the lock housing 1. The lock cylinder lever 45 has a second pressure-receiving portion 451 and a second mating portion 452. The second pressure-receiving portion 451 is located on one side of the lock cylinder 44 and adjacent to the lock cylinder cam 441.

[0111] The motor drive component 46 is rotatably mounted on the lock housing 1. There is a transmission structure between the motor drive component 46 and the main lock tongue actuating block 42. 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 disposed on the motor drive component 46 and the other is disposed on the main lock tongue actuating block 42. The motor drive component 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 actuating block 42 to rotate.

[0112] 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, which drives the lock head lever 45 to move. After the lock head lever 45 moves, the second engagement part 452 contacts and engages with the first engagement part 432, which drives the rotating lever 43 and the main lock tongue lever block 42 to rotate synchronously, ultimately causing the main lock tongue body 41 to switch from the extended state to the retracted state.

[0113] When the lock head cam 441 rotates from the initial position to the unlocked position, the lock head cam 441 contacts and engages with the first pressure part 431, driving the rotating paddle 43 and the main lock tongue actuating block 42 to rotate synchronously, ultimately causing the main lock tongue body 41 to switch from the retracted state to the extended state.

[0114] In this application, the main bolt assembly 4 has a second pressure-bearing part 451 located on one side of the lock cylinder 44 and adjacent to the lock head cam 441. The lock head cam 441 can drive the lock head lever 45 to move by rotating a small angle. The first mating part 432 of the main bolt actuating block 42 is located near the first rotation axis 5. In this way, the first mating part 432 only needs to move a small range to achieve a large rotation angle of the main bolt actuating block 42. The combination of the two ("the second pressure-bearing part 451 is located on one side of the lock cylinder 44 and adjacent to the lock head cam 441" and "the first mating part 432 is located near the first rotation axis 5") enables the main bolt assembly 4 to rotate a small angle when unlocked with a key, and the unlocking process takes a short time.

[0115] The transmission structure is designed so that after the motor drive component 46 drives the main bolt body 41 to the extended or retracted state, the motor drive component 46 rotates back by a set angle. This allows for unlocking with a key (the lock cylinder cam 441 rotates to the unlock position). See [link to relevant documentation]. Figure 30 and Figure 31 The motor drive component 46 will not be driven to rotate (when the key is unlocked, it drives the main lock tongue toggle block 42 to rotate, and the protrusion 461 moves in the arc hole 422, which is different from the motor drive component 46), making it easier to unlock the key.

[0116] In this embodiment, when the lock cam 441 rotates from the initial position to the unlocked position, the rotation angle of the lock cam 441 is less than or equal to 90°.

[0117] like Figure 29 As shown, in this embodiment, the main latch plate 412 is located between the main latch actuating block 42 and the rotating paddle 43. This arrangement ensures that the main latch plate 412 is subjected to uniform force, making its movement more stable and reliable.

[0118] like Figure 27 As shown, in this embodiment, the drive unit 421 passes through the drive groove 4121;

[0119] One end of the drive unit 421 is fixed to the main lock tongue actuating block 42, and the other end is inserted into the rotating paddle 43; or, one end of the drive unit 421 is fixed to the rotating paddle 43, and the other end is inserted into the main lock tongue actuating block 42.

[0120] like Figure 22 , 27 As shown in Figure 29, in this embodiment, the rotating paddle 43 also has a third mating part 433. The third mating part 433 and the first mating part 432 are both located on the same side of the first rotation axis 5, and 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.

[0121] The lock lever 45 has a fourth mating part 453 that mates with the third mating part 433;

[0122] 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.

[0123] 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.

[0124] 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.

[0125] In this embodiment, the lock head lever 45 is slidably disposed on the lock housing 1.

[0126] 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.

[0127] like Figure 22 and 27 As shown, in this embodiment, the motor assembly 6 includes:

[0128] 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;

[0129] The drive motor 62 is used to drive the drive gear 61 to rotate.

[0130] like Figures 22-26As shown, in this embodiment, the latch assembly 3 has an extended state and a retracted state; the lock body also includes:

[0131] Handle shaft 71, rotatably mounted on lock housing 1, is used to mount the handle; and

[0132] The handle lever 72 is mounted on the handle shaft 71 and can rotate relative to the handle shaft 71. The handle lever 72 has a fifth mating part 721 and a sixth mating part 722. The fifth mating part 721 cooperates with the tongue assembly 3 to switch the tongue assembly 3 from the extended state to the retracted state.

[0133] The lock cylinder lever 45 has an unlocking part 454. During the process of the lock cylinder cam 441 rotating from the initial position to the unlocking position, the lock cylinder cam 441 contacts and engages with the second pressure part 451, driving the lock cylinder lever 45 to move. After the lock cylinder lever 45 moves, the unlocking part 454 abuts against the sixth engagement part 722, causing the handle lever 72 to rotate. Finally, the fifth engagement part 721 of the handle lever 72 causes the latch assembly 3 to switch from the extended state to the retracted state.

[0134] Example 2

[0135] like Figure 12 , 13 As shown in Figure 14, the difference between this embodiment and embodiment 1 is that the buckle plate 2 has a limiting hole 21 for the oblique 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 331 is fully embedded in the sliding groove 3111, and when the oblique tongue assembly 3 is in the closed position, the oblique tongue body 31 extends into the limiting hole 21 and the small tongue 331 contacts and cooperates with the protrusion 22.

[0136] The small tongue 331 is fully embedded in the slide groove 3111, meaning that the small tongue 331 does not protrude from the slide groove 3111. This setting does not change the thickness of the lock body, that is, the thickness of the lock body will not need to be increased because the small tongue 331 protrudes from the slide groove 3111.

[0137] Example 3

[0138] like Figures 16-21 As shown, the difference between this embodiment and embodiment 1 is that: the end of the small tongue 331 away from the mounting part 332 has a protruding block 3311 with a protruding groove 3111, the lock shell 1 has a relief groove 111 for the protruding block 3311 to be inserted, when the tongue assembly 3 is in the closed position, the protruding block 3311 abuts against the buckle plate 2, and at least part of the protruding block 3311 is inserted into the relief groove 111.

[0139] The small tongue 331 is designed in this way, which, compared to other structural forms, does not increase the thickness of the lock body, and does not require special design for the strike plate 2.

[0140] In practical applications, the clearance groove 111 can be either a non-through structure or a through structure.

[0141] like Figure 16 and Figure 17 As shown, in this embodiment, the protrusion 3311 has an inclined or arc-shaped first guide surface 33111 on the side near the mounting part 332. The further away the protrusion 3311 is from the slide groove 3111, the smaller the thickness of the protrusion 3311. The clearance groove 111 has a second guide surface 1111 that is adapted to the guide surface.

[0142] 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 clearance groove 111 when the latch assembly 3 is in the closed position. However, it can reduce the amount of material that needs to be removed from the lock shell 1 due to the clearance groove 111, thus ensuring 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 will be a block of a certain thickness. In this case, a larger clearance groove 111 would be required, which would remove more material and affect the structural strength.

[0143] like Figure 20 and 21 As shown, in this embodiment, the lock case 1 includes a relatively fixed vertical plate 11 and a panel 12. The latch body 31 and the latch attachment 33 are inserted through the vertical plate 11. The clearance groove 111 is located on the vertical plate 11. The panel 12 has a notch 121 at one end near the vertical plate 11. A reinforcing member 13 is fixed on the side of the vertical plate 11 facing the notch 121. The reinforcing member 13 is embedded in the notch 121. The clearance groove 111 corresponds to the position of the reinforcing member 13.

[0144] The reinforcement 13 can enhance the structural strength of the vertical plate 11 and prevent the structural strength of the vertical plate 11 from being reduced due to the setting of the clearance groove 111. It is especially suitable for lock cases where the width of the vertical plate 11 is small.

[0145] The above description is only a preferred embodiment of the present utility model and does not limit the scope of patent protection of the present utility model. Any equivalent structural transformations made based on the content of the present utility model specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present utility model.

Claims

1. A main bolt assembly for a lock body, the lock body comprising a lock shell, characterized in that, The main bolt assembly of the lock body includes: The main bolt body is slidably mounted on the lock housing. The main bolt body has a main bolt portion and a main bolt plate that are connected to each other. The main bolt plate has a drive groove. The main bolt body has an extended state and a retracted state. The main bolt actuating block is rotatably mounted on the lock housing. The main bolt actuating block can rotate around a first rotation axis. The main bolt actuating block has a driving part that extends into the driving groove. When the main bolt actuating block rotates, it can drive the main bolt body to slide through the cooperation of the driving part and the driving groove. The main bolt actuating block has a first position and a second position. When the main bolt actuating block is in the first position, the main bolt body is in an extended state. When the main bolt actuating block is in the second position, the main bolt body is in a retracted state. The rotating paddle is rotatably mounted on the lock housing and fixed relative to the main bolt actuating block. It can rotate synchronously with the main bolt actuating block. The rotating paddle has a first pressure-receiving part and a first mating part disposed adjacent to the first rotation axis. A lock cylinder, mounted on a lock housing, has a lock head cam having an initial position, an unlocked position, and a locked position; A lock cylinder lever, movably mounted on the lock housing, the lock cylinder lever having a second pressure-receiving portion and a second mating portion, the second pressure-receiving portion being located on one side of the lock cylinder and adjacent to the lock cylinder cam; and A motor drive component is rotatably mounted on the lock housing. A transmission structure exists between the motor drive component and the main latch actuating block. The transmission structure includes an arc-shaped hole and a protrusion extending into the arc-shaped hole. One of the arc-shaped hole and the protrusion is disposed on the motor drive component, and the other is disposed on the main latch actuating block. The motor drive component is used to cooperate with the motor assembly of the lock body and is driven to rotate by the motor assembly of the lock body, thereby driving the main latch actuating block to rotate. During the process of the lock head cam rotating from the initial position to the unlock position, the lock head cam contacts and engages with the second pressure part, driving the lock head lever to move. After the lock head lever moves, the second engagement part contacts and engages with the first engagement part, driving the rotating lever and the main lock tongue lever block to rotate synchronously, ultimately causing the main lock tongue body to switch from the extended state to the retracted state. When the lock head cam rotates from the initial position to the locked position, the lock head cam contacts and engages with the first pressure part, driving the rotating paddle and the main lock tongue actuating block to rotate synchronously, ultimately causing the main lock tongue body to switch from the retracted state to the extended state.

2. The main bolt assembly of the lock body as described in claim 1, characterized in that, When the lock cam rotates from the initial position to the unlocked position, the angle of rotation of the lock cam is less than or equal to 90°.

3. The main bolt assembly of the lock body as described in claim 1, characterized in that, The main latch plate is located between the main latch actuating block and the rotating paddle.

4. The main bolt assembly of the lock body as described in claim 3, characterized in that, The drive unit passes through the drive groove; One end of the drive unit is fixed to the main locking tongue actuation block, and the other end is inserted into the rotating paddle; or, one end of the drive unit is fixed to the rotating paddle, and the other end is inserted into the main locking tongue actuation block.

5. The main bolt assembly of the lock body as described in claim 1, characterized in that, The rotating paddle also has a third mating part, which is located on the same side of the first rotating axis as the first mating part, and the distance of the third mating part from the first rotating axis is greater than the distance of the first mating part from the first rotating axis. The lock lever has a fourth mating part that mates with the third mating part; During the process of the lock head cam rotating from the initial position to the unlocked position, the lock head cam contacts and engages with the second pressure part, driving the lock head lever to move. At first, the fourth engagement part of the lock head lever contacts and engages with the third engagement part, driving the lever to rotate. Then, the fourth engagement part and the third engagement part no longer contact and engage, but the second engagement part contacts and engages with the first engagement part, continuing to drive the lever to rotate, ultimately causing the main bolt body to switch from the extended state to the retracted state.

6. The main bolt assembly of the lock body as described in claim 5, characterized in that, The first mating part and the third mating part are located on both sides of the lock head lever, respectively.

7. The main bolt assembly of the lock body as described in claim 1, characterized in that, The lock cylinder lever is slidably mounted on the lock housing.

8. The main bolt assembly of the lock body as described in any one of claims 1 to 7, characterized in that, The motor drive component has teeth that are used to engage with the motor assembly.

9. A lock body, characterized in that, Includes a lock housing, a motor assembly mounted on the lock housing, and a main bolt assembly of the lock body as described in claim 8, mounted on the lock housing; The motor assembly includes: A drive gear is rotatably mounted on the lock housing, and the drive gear meshes with the teeth of the motor transmission component; A drive motor is used to drive the drive gear to rotate.

10. The lock body as described in claim 9, characterized in that, Also includes: A tongue assembly, which has an extended state and a retracted state; The handle shaft is rotatably mounted on the lock housing and is used to install the handle; as well as A handle lever is mounted on the handle shaft and can rotate relative to the handle shaft. The handle lever has a fifth mating part and a sixth mating part. The fifth mating part cooperates with the tongue assembly to switch the tongue assembly from the extended state to the retracted state. The lock head lever has an unlocking part. During the process of the lock head cam rotating from the initial position to the unlocking position, the lock head cam contacts and engages with the second pressure part, driving the lock head lever to move. After the lock head lever moves, the unlocking part abuts against the sixth engaging part, causing the handle lever to rotate. Finally, the latch assembly is switched from the extended state to the retracted state through the fifth engaging part of the handle lever.

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