Full-automatic invisible door lock body structure and invisible door

Abstract

The utility model relates to the technical field of door locks, and particularly discloses a full-automatic invisible door lock body structure and an invisible door. According to the lock body structure, an unlocking rotating block is rotationally connected into a shell, an unlocking swing arm is arranged on the unlocking rotating block, and the unlocking swing arm is matched with a spring bolt to drive the spring bolt to move; the unlocking rotating block is sleeved with the main gear, and a first transmission connection structure with a first idle stroke is formed between the main gear and the unlocking rotating block; the handle rotating block is rotationally connected into the shell, and the handle rotating block is sleeved with a rotating block gear fixed relative to the handle rotating block. The unlocking gear is arranged on the unlocking rotating block in a sleeving mode, the rotating block gear is in transmission connection with the unlocking gear, and a second transmission connection structure with a second idle stroke is formed between the unlocking gear and the unlocking rotating block. According to the lock body structure, the two function modes of handle unlocking and electric unlocking can be met at the same time, the transmission structure is more concentrated, enough space is formed in the shell to integrate the battery and the circuit board, and the requirements of an invisible door for the small size and concealment of the lock body structure are met.

Description

Technical Field

[0001] This utility model relates to the technical field of door locks, and specifically discloses a fully automatic invisible door lock body structure and an invisible door. Background Technology

[0002] A hidden door is a special type of door that blends seamlessly into the wall by concealing its shape, size, and style, achieving an effect that makes it difficult to detect. Its design aims to meet the demands of modern interior design for minimalism and a sense of unity. It is often used to hide entrances to spaces such as walk-in closets, studies, or storage rooms, making the spatial layout more concise and aesthetically pleasing. Hidden doors not only have a practical function but also serve as a decorative element, enhancing the overall visual appeal of a space.

[0003] Most existing smart locks are installed on the front of the door, with the panel and battery mounted externally. This design fails to meet the concealment requirements of hidden doors. Locks for hidden doors need to be embedded from the side to ensure complete concealment from both the front and back, with only the hidden handle visible. Furthermore, smart locks for hidden doors need to offer both electric and manual unlocking modes to handle different usage scenarios and emergencies. However, existing lock structures are bulky, making it difficult to implement these functions within the limited space of a hidden door, and they also lack sufficient flexibility and concealment. Therefore, developing a smart lock suitable for hidden doors that meets their concealment requirements, integrates the battery and circuit panel, offers multiple unlocking modes, and has a compact size is a pressing technical challenge. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a fully automatic hidden door lock body structure and a hidden door.

[0005] On the one hand, this utility model discloses a fully automatic concealed door lock body structure, which adopts the following technical solution:

[0006] A fully automatic concealed door lock body structure includes a housing and a bolt. The housing also includes: an unlocking turn block, a main gear, a handle turn block, a turn block gear, an unlocking gear, a motor assembly, a circuit board, and a battery.

[0007] The unlocking rotating block is rotatably connected in the housing, and the unlocking rotating block is provided with an unlocking swing arm, which cooperates with the lock tongue to drive the lock tongue to move;

[0008] The circuit board draws power from the battery and controls the motor assembly to drive the main gear to rotate.

[0009] The main gear is sleeved on the unlocking rotating block, and a first transmission connection structure with a first free stroke is formed between the main gear and the unlocking rotating block. The first transmission connection structure is configured to drive the unlocking rotating block to rotate after the main gear rotates through the first free stroke when the motor assembly is driven.

[0010] The handle rotating block is rotatably connected in the housing, and the rotating block gear is sleeved on the handle rotating block and fixed relative to it;

[0011] The unlocking gear is sleeved on the unlocking rotating block, and the rotating block gear is connected to the unlocking gear. The unlocking gear and the unlocking rotating block form a second transmission connection structure with a second free stroke. The second transmission connection structure is configured to drive the unlocking rotating block to rotate after the unlocking gear has passed the second free stroke when the handle rotating block is in the driving state.

[0012] Preferably, the latch includes a lock part and a hook part connected together. The hook part cooperates with the unlocking swing arm to drive the lock part to extend and retract on the housing. The hook part of the latch is located between the unlocking rotating block and the handle rotating block laterally. The rotating block gear at least partially overlaps longitudinally with the hook part of the latch and extends to mesh with the unlocking gear.

[0013] Preferably, the unlocking gear is located coaxially above the main gear, the unlocking swing arm is located longitudinally between the unlocking gear and the main gear, and the main gear at least partially overlaps longitudinally with the hook portion of the latch.

[0014] Preferably, the hook portion of the latch is provided with a guide groove extending along the movement direction of the latch, and the housing is provided with a limiting member passing through the guide groove; the hook portion of the latch is provided with a movable groove for the movement of the unlocking swing arm, and the two sides of the movable groove are provided with an unlocking positioning groove and an upper locking positioning groove for positioning the unlocking swing arm.

[0015] Preferably, the first transmission connection structure is as follows: the main gear is provided with a mounting hole that cooperates with the unlocking rotating block, the mounting hole is provided with a first arc-shaped groove communicating with it, the unlocking rotating block is provided with a first protrusion extending into the first arc-shaped groove, the first protrusion can rotate relative to it in the first arc-shaped groove; two first arc-shaped grooves are symmetrically provided on the main gear, and two corresponding first protrusions are provided.

[0016] Preferably, the second transmission connection structure is as follows: the unlocking gear has a meshing part, the rotating block gear has a toothed part, the toothed part is connected to the meshing part in a transmission manner, the unlocking gear has a second arc-shaped groove, and the unlocking rotating block has a second protrusion extending into the second arc-shaped groove, the second protrusion being able to rotate relative to the second arc-shaped groove.

[0017] Preferably, the housing is provided with a Hall element, which is electrically connected to the circuit board. The lock body structure is equipped with a latch box, which has a lock hole for engaging with the lock tongue. The latch box is provided with a magnet that cooperates with the Hall element. The Hall element is used to detect the position of the latch box.

[0018] Preferably, the housing is provided with a first micro switch electrically connected to the circuit board, and the unlocking turn block is provided with a trigger plate, which follows the movement of the unlocking turn block and triggers the first micro switch.

[0019] Preferably, the housing is provided with a detection gear and a second micro switch. The second micro switch is electrically connected to the circuit board. The detection gear meshes with the main gear. The detection gear is provided with a trigger protrusion. The trigger protrusion rotates with the detection gear and triggers the second micro switch.

[0020] Preferably, the housing is provided with a third micro switch electrically connected to the circuit board, and the handle rotating block is provided with an actuating block, which rotates with the handle rotating block and triggers the third micro switch.

[0021] Preferably, the housing is provided with a positioning torsion spring, one end of the positioning torsion spring is connected to the housing and the other end is connected to the unlocking turn block, and the positioning torsion spring at least partially overlaps the bolt longitudinally.

[0022] Preferably, a reset torsion spring is provided inside the housing, and the reset torsion spring is sleeved on the handle rotating block. One end of the reset torsion spring is connected to the housing, and the other end is connected to the handle rotating block.

[0023] On the other hand, this utility model discloses a hidden door, which adopts the following technical solution:

[0024] A concealed door includes a door frame and a door leaf installed on the door frame. The door leaf is equipped with the fully automatic concealed door lock body structure, and the door frame is equipped with a latch box that cooperates with the lock tongue of the fully automatic concealed door lock body structure.

[0025] Compared with the prior art, the present invention has at least the following beneficial effects:

[0026] This invention features a locking mechanism consisting of an unlocking block, a main gear, an unlocking gear, a handle block, a rotating block gear, a motor assembly, and a locking tongue. It also includes a first free-spinning stroke between the main gear and the unlocking block, and a second free-spinning stroke between the unlocking gear and the unlocking block. This allows the lock body structure to simultaneously support both handle-based and electric unlocking modes. Furthermore, this invention has fewer components, more reliable transmission links, and most components are axially assembled, resulting in a smaller space occupied by the transmission structure. This allows for sufficient space within the housing to integrate the battery and circuit board, thus meeting the compact and concealed requirements of hidden doors. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the fully automatic concealed door lock body structure and its matching latch box structure in this embodiment;

[0028] Figure 2 This is a schematic diagram showing the fully automatic concealed door lock body structure with part of the housing removed in this embodiment;

[0029] Figure 3 This is a breakdown diagram of the fully automatic concealed door lock body structure in this embodiment;

[0030] Figure 4 This is a schematic diagram of the unlocking rotary block and the positioning torsion spring in this embodiment;

[0031] Figure 5 This is a schematic diagram of the handle rotating block, the rotating block gear, and the return torsion spring in this embodiment.

[0032] Figure 6 This is a schematic diagram of the first transmission connection structure having a first idle stroke in this embodiment;

[0033] Figure 7 This is a schematic diagram of the second transmission connection structure with a second idling stroke in this embodiment;

[0034] Figure 8 This is a state diagram of the electric unlocking process of the fully automatic concealed door lock body structure in this embodiment;

[0035] Figure 9 This is a state diagram of the manual mode unlocking process of the fully automatic concealed door lock structure in this embodiment.

[0036] Explanation of icon numbers:

[0037] A. Lock body structure; B. Snap-on box;

[0038] 1. Housing; 101. First mounting post; 102. Third mounting post;

[0039] 2. Locking tongue; 21. Locking part; 22. Hook part;

[0040] 3. Unlocking turn block; 31. Unlocking swing arm; 32. First protrusion; 33. Second protrusion; 34. Second mounting post;

[0041] 4. Positioning torsion spring;

[0042] 5. Main gear; 51. First arc-shaped groove;

[0043] 6. Actuating piece; 61. Actuating groove

[0044] 7. Unlocking gear; 71. Meshing part; 72. Second arc-shaped groove;

[0045] 8. Inspect the gears; 81. Touch the protrusion

[0046] 9. Handle rotating block; 91. Actuating block; 92. Limiting block;

[0047] 10. Return torsion spring;

[0048] 11. Rotating gear; 111. Tooth section;

[0049] 12. Motor assembly; 13. Circuit board; 14. Battery;

[0050] 15. Hall effect element;

[0051] 16. First micro switch;

[0052] 17. Second micro switch;

[0053] 18. Third micro switch. Detailed Implementation

[0054] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] This embodiment discloses a fully automatic concealed door lock body structure and a concealed door. The concealed door includes a door frame and a door leaf installed on the door frame. The door leaf is equipped with a fully automatic concealed door lock body structure A, and the door frame is equipped with a latch box B.

[0056] Reference Figure 1-9The lock body structure A includes a housing 1, within which are a bolt 2, an unlocking lever 3, a main gear 5, an unlocking gear 7, a handle lever 9, a lever gear 11, a motor assembly 12, a circuit board 13, and a battery 14. The bolt 2 is located within the housing 1 and can be extended and retracted by a drive, thereby cooperating with the latch box B to achieve the locking function. The unlocking lever 3 is rotatably connected to the housing 1, and the unlocking lever 3 is equipped with an unlocking swing arm 31, which rotates with the unlocking lever 3 to drive the bolt 2 to move. Specifically, the latch 2 includes a lock part 21 and a hook part 22 connected together. The hook part 22 cooperates with the unlocking swing arm 31 to drive the lock part 21 to extend and retract on the housing 1. The hook part 22 of the latch 2 is provided with a guide groove extending along the movement direction of the latch 2. The housing 1 is provided with a limiting member passing through the guide groove. The hook part 22 of the latch 2 is provided with an active groove for the unlocking swing arm to move and push the latch to extend and retract. By adopting the above-mentioned latch 2 structural design, the space occupied by the latch 2 can be minimized while satisfying the extension and retraction function of the latch 2.

[0057] In this embodiment, the motor assembly 12 includes a drive motor and a matching reduction gear set. The circuit board 13 draws power from the battery 14 and controls the motor assembly 12 to drive the main gear 5 to rotate. This motor assembly 12, which includes a reduction gear set, has the advantages of small size and high power. However, when the drive motor is not rotating and the reduction gear set is subjected to external drive, it will generate a large resistance. To make it easier for users to unlock using the handle, in this embodiment, the main gear 5 is sleeved on the unlocking rotating block 3. A first transmission connection structure with a first free stroke is formed between the main gear 5 and the unlocking rotating block 3. This first transmission connection structure is configured such that when the motor assembly 12 is in the driving state, the main gear 5 rotates through the free stroke and then drives the unlocking rotating block 3 to rotate. Specifically, refer to... Figure 6 The main gear 5 is provided with a mounting hole that cooperates with the unlocking rotating block 3. The mounting hole is provided with a first arc-shaped groove 51 that communicates with it. The unlocking rotating block 3 is provided with a first protrusion 32 that extends into the first arc-shaped groove 51. The first protrusion 32 can rotate relative to the first arc-shaped groove 51, thereby forming a first free-spinning stroke between the main gear 5 and the unlocking rotating block 3.

[0058] Furthermore, the handle rotating block 9 is rotatably connected to the housing 1. The handle rotating block 9 is used to connect with an external handle and rotates following the external handle knob. Of course, it can also serve as a keyhole instead of a handle connection. The rotating block gear 11 is sleeved on the handle rotating block 9 and fixed relative to it. The unlocking gear 7 is sleeved on the unlocking rotating block 3. The rotating block gear 11 and the unlocking gear 7 are connected in a transmission manner. The unlocking gear 7 and the unlocking rotating block 3 form a second transmission connection structure with a second free stroke. This second transmission connection structure is configured such that when the handle rotating block is driven, the unlocking gear 7 drives the unlocking rotating block 3 to rotate after the free stroke. Specifically, refer to Figure 7The unlocking gear 7 is provided with a meshing part 71, and the rotating block gear 11 is provided with a toothed part 111. The toothed part 111 of the rotating block gear 11 is connected to the meshing part 71 of the unlocking gear 7. The unlocking gear 7 is provided with a second arc-shaped groove 72, and the unlocking rotating block 3 is provided with a second protrusion 33 extending into the second arc-shaped groove 72. The second protrusion 33 can rotate relative to each other in the second arc-shaped groove 72, thereby forming a second idle stroke between the unlocking gear 7 and the unlocking rotating block 3.

[0059] Reference Figure 8 When the electric lock is engaged, the motor assembly 12 starts and drives the main gear 5 to rotate. After the idle stroke, the groove wall of the first arc-shaped groove 51 of the main gear 5 touches and pushes the first protrusion 32, thereby driving the unlocking rotating block 3 to rotate. This causes the unlocking swing arm 31 of the unlocking rotating block 3 to swing, pushing the lock tongue 2 outward to achieve locking. At the same time, since there is a second idle stroke between the unlocking rotating block 3 and the unlocking gear 7, during the rotation of the unlocking rotating block 3, its second protrusion 33 moves from one end of the second arc-shaped groove 72 of the unlocking gear 7 to the other end, crossing the second idle stroke. When it reaches the end, the second protrusion 33 just does not push the groove wall of the second arc-shaped groove 72, so that the unlocking rotating block 3 does not drive the unlocking gear 7 to rotate when it rotates. This reduces the load on the motor assembly 12 driving the unlocking gear 7 and the rotating block gear 11. In this way, a lower power and smaller size motor assembly 12 can be selected, reducing the space occupied by the motor assembly 12 in the housing 1, and making the lock body structure more compact.

[0060] Reference Figure 8 When the electric unlocking is performed, the motor assembly 12 starts and drives the main gear 5 to rotate in the opposite direction. After the first idle stroke, the groove wall of the first arc-shaped groove 51 of the main gear 5 touches and pushes the first protrusion 32, thereby driving the unlocking rotating block 3 to rotate. This causes the unlocking swing arm 31 of the unlocking rotating block 3 to swing in the opposite direction, pushing the lock tongue 2 inward to achieve unlocking. As a preferred embodiment, two first arc-shaped grooves 51 are symmetrically provided on the main gear 5, and two corresponding first protrusions 32 are provided. By setting a symmetrical first arc-shaped groove 51 structure, the force is more evenly distributed when the main gear 5 drives the unlocking rotating block 3 to rotate, improving the structural stability. Meanwhile, since there is a second free-spinning stroke between the unlocking block 3 and the unlocking gear 7, during the reverse rotation of the unlocking block 3, its second protrusion 33 moves from one end of the second arc groove 72 of the unlocking gear 7 to the other end, crossing the second free-spinning stroke in the opposite direction. When it reaches the end, the second protrusion 33 just does not push the groove wall of the second arc groove 72, so that the unlocking block 3 will not drive the unlocking gear 7 to rotate when it rotates, thus reducing the load on the motor assembly 12.

[0061] Reference Figure 9When the handle unlocks, the handle drives the handle rotating block 9 to rotate, and the rotating block gear 11 follows the handle rotating block 9 to rotate. At this time, the second protrusion 33 of the unlocking rotating block 3 is located on the forward direction side of the second arc groove 72. The unlocking gear 7 uses its second arc groove 72 to push the second protrusion 33, thereby driving the unlocking rotating block 3 to rotate. This causes the unlocking swing arm 31 of the unlocking rotating block 3 to swing in the opposite direction, pushing the lock tongue 2 inward to achieve unlocking. Since there is also a first free stroke between the main gear 5 and the unlocking rotating block 3, during the process, the first protrusion 32 moves from one end of the first arc groove 51 to the other end. When the movement is in place, the first protrusion 32 just does not push the groove wall of the first arc groove 51, so that when the unlocking rotating block 3 rotates in the opposite direction, it will not transmit power to the main gear 5. This avoids the need for the handle rotation to drive the reduction gear set of the motor assembly 12, thus making the handle unlocking easier and less strenuous.

[0062] In this embodiment, the hook portion 22 of the latch 2 is located transversely between the unlocking rotating block 3 and the handle rotating block 9. The rotating block gear 11 at least partially overlaps longitudinally with the hook portion 22 of the latch 2 and extends to mesh with the unlocking gear 7. Furthermore, the unlocking gear 7 is located coaxially above the main gear 5, and the unlocking swing arm 31 is located longitudinally between the unlocking gear 7 and the main gear 5. The main gear 5 at least partially overlaps longitudinally with the hook portion 22 of the latch 2. With this design, the latch transmission structure, composed of the unlocking rotating block 3, the main gear 5, the unlocking gear 7, the handle rotating block 9, and the rotating block gear 11, can be fully utilized in three layers in the longitudinal space: the main gear 5 is located at the bottom layer; the unlocking swing arm 31 of the unlocking rotating block 3 and the hook portion 22 of the latch 2 are located in the middle layer; and the unlocking gear 7 and the rotating block gear 11 are located at the top layer. By designing the transmission components to be stacked in the longitudinal space, and cleverly setting the unlocking turn block 3 and the handle turn block 9 on both sides of the hook part 22 of the lock tongue 2 in the transverse direction, the space occupied by the components can be compressed to the maximum extent. This allows the transmission structure of the lock body structure to be concentrated on the right side of the housing 1, while the left side of the housing 1 can be used for the installation of the battery 14 and the circuit board 13. This makes full use of the internal space of the lock body structure. With the same function, the lock body structure of this solution is more compact and can be perfectly applied to hidden doors.

[0063] In this embodiment, refer to Figure 3The door lock body structure A has a Hall element 15 inside its housing 1, which is electrically connected to the circuit board 13. The door frame's latch box B contains a magnet that works in conjunction with the Hall element 15. The Hall element 15 detects whether the door is fully closed. When the door is closed, the magnetic field changes, and the Hall element 15 senses this magnetic field, confirming that the door is closed. This prevents the latch from moving when the door is not fully closed, thus avoiding damage to the motor or the latch being in an unsafe state. By utilizing the magnetic field principle of the Hall element for door position detection, compared to traditional physical transmission detection (such as additional transmission components linked to the latch and microswitches), this solution results in a smaller and more reliable lock body structure. Furthermore, as a preferred solution, the magnet is threadedly connected to the latch box B via screws. On one hand, the screws serve to fix the magnet; on the other hand, they also allow the magnet to extend and retract within the latch box B. When the gap between the door leaf and the door frame increases after the door is closed, causing the Hall element to malfunction, the distance between the magnet and the Hall element 15 can be adjusted by unscrewing the screws on the latch box B. As the distance between the Hall element 15 and the magnet decreases, the magnetic field strength increases, and the voltage or signal strength output by the Hall element 15 also increases, thus reaching the conditions for activation. This enables the function of detecting and judging the door's opening and closing status, avoiding the tedious work of remanufacturing or reinstalling the door due to actual door leaf production or installation errors to resolve malfunctions. Compared with existing technologies, the concealed door with this lock body structure A and latch box B is more flexible and intelligent.

[0064] In this embodiment, the housing 1 is provided with a first micro switch 16 electrically connected to the circuit board 13, and the unlocking rotating block 3 is provided with a trigger plate 6. The trigger plate 6 follows the movement of the unlocking rotating block 3 and triggers the first micro switch 16. Specifically, the trigger plate 6 is provided with a trigger groove 61 for the first micro switch 16 to move relative to it. When the first micro switch 16 touches the groove wall of the trigger groove 61 of the trigger plate 6, it can transmit an electrical signal to the circuit board 13 to provide feedback on the rotation position of the unlocking rotating block 3 to the circuit board 13. The housing 1 contains a detection gear 8 and a second micro switch 17. The second micro switch 17 is electrically connected to the circuit board 13. The detection gear 8 meshes with the main gear 5. The detection gear 8 has a trigger protrusion. The trigger protrusion rotates with the detection gear 8 and triggers the second micro switch 17. The second micro switch 17 is used to detect the rotation angle of the main gear 5. When the main gear 5 rotates to a preset angle, that is, after the second micro switch 17 is triggered by the detection gear 8 a preset number of times, it feeds back an electrical signal to the circuit board 13 at a set interval to control the back electromotive force braking of the motor assembly 12, thereby achieving the effect of precisely controlling the rotation of the unlocking turntable 3. The housing 1 contains a third micro switch 18 electrically connected to the circuit board 13. The handle rotating block 9 has an actuating block 91. When the handle is turned, the actuating block 91 rotates with the handle rotating block 9 and triggers the third micro switch 18. The third micro switch 18 is used to provide feedback to the circuit board 13 to activate the handle unlocking state. In addition, the third micro switch 18, in conjunction with the actuating block 91, can also be used as a system parameter setting button for the circuit board 13. The three micro switches, together with the circuit board 13 and the motor assembly 12, realize the intelligent system integration of the lock body structure, making the lock body structure more intelligent and reliable.

[0065] Reference Figure 3 , Figure 4The housing 1 contains a positioning torsion spring 4, which is a three-section torsion spring. One end of the positioning torsion spring 4 is connected to the housing 1, and the other end is connected to the unlocking rotating block 3. The three-section torsion spring has a snap-action effect. When the lock tongue 2 is pushed between the unlocking and locking positions by the unlocking rotating block 3, the positioning torsion spring 4 is charged. When the lock tongue 2 is pushed to the unlocking or locking position by the unlocking rotating block, the positioning torsion spring 4 releases its elasticity, which serves to position and stop the lock tongue in the unlocking or locking state, avoiding incomplete action due to swinging or gravity, thus affecting stability and reliability. As a preferred solution, the movable groove of the hook part 22 of the lock tongue 2 is provided with an unlocking positioning groove and an upper locking positioning groove on both sides for positioning the unlocking swing arm 31. By designing the unlocking positioning groove and the upper locking positioning groove, in conjunction with the positioning torsion spring 4, a better positioning effect of the lock tongue can be achieved. As a preferred embodiment, the housing 1 is provided with a first mounting post 101 located longitudinally below the locking tongue 2, and the unlocking rotating block 3 is provided with a second mounting post 34 located longitudinally between the unlocking swing arm 31 and the main gear 5. The two torsion arms of the positioning torsion spring 4 are respectively sleeved and fixed to the first mounting post 101 and the second mounting post 34. In this way, the positioning torsion spring 4 at least partially overlaps longitudinally with the hook 22 of the locking tongue 2, thereby saving space occupied by the housing 1.

[0066] Reference Figure 3 , Figure 5 The housing 1 contains a return torsion spring 10, which is sleeved on the handle rotating block 9. The housing 1 has a third mounting post 102, and the handle rotating block 9 has a limiting block 92. One torsion arm of the return torsion spring 10 is sleeved and fixed to the third mounting post 102, and the other torsion arm abuts against the limiting block 92. Figure 9 When the handle is rotated to unlock, the reset torsion spring 10 stores power and drives the handle rotating block 9 to rotate and reset. The rotating block gear 11 rotates synchronously and drives the unlocking gear 7 to rotate and reset. At this time, since there is a second idle stroke between the unlocking gear 7 and the unlocking rotating block 3, the rotation process of the unlocking gear 7 will not transmit power to the unlocking rotating block 3. Therefore, the reset of the handle will not be hindered by the motor assembly or cause wear to the motor assembly.

[0067] This utility model's fully automatic concealed door lock body structure can simultaneously satisfy both manual and electric unlocking functions. The two unlocking modes do not affect each other. Not only is unlocking with the handle more effortless, but electric unlocking will also not be subject to excessive load, thus affecting its service life. In addition, this utility model has fewer transmission structure components, most of which are assembled in a nested manner, making full use of horizontal and vertical space, thereby being more concentrated and saving space. The transmission structure and lock tongue can be arranged on one side of the lock body structure, while the other side of the housing has a large space left to install the circuit and battery. The lock body structure has the advantage of integrating the control panel and power supply into one unit.

[0068] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A fully automatic concealed door lock body structure, comprising a housing and a bolt, characterized in that, The housing also includes: an unlocking turntable, a main gear, a handle turntable, a turntable gear, an unlocking gear, a motor assembly, a circuit board, and a battery; The unlocking rotating block is rotatably connected in the housing, and the unlocking rotating block is provided with an unlocking swing arm, which cooperates with the lock tongue to drive the lock tongue to move; The circuit board draws power from the battery and controls the motor assembly to drive the main gear to rotate. The main gear is sleeved on the unlocking rotating block, and a first transmission connection structure with a first free stroke is formed between the main gear and the unlocking rotating block. The first transmission connection structure is configured to drive the unlocking rotating block to rotate after the main gear rotates through the first free stroke when the motor assembly is driven. The handle rotating block is rotatably connected in the housing, and the rotating block gear is sleeved on the handle rotating block and fixed relative to it; The unlocking gear is sleeved on the unlocking rotating block, and the rotating block gear is connected to the unlocking gear. The unlocking gear and the unlocking rotating block form a second transmission connection structure with a second free stroke. The second transmission connection structure is configured to drive the unlocking rotating block to rotate after the unlocking gear has passed the second free stroke when the handle rotating block is in the driving state.

2. The fully automatic concealed door lock body structure according to claim 1, characterized in that, The latch includes a lock part and a hook part connected together. The hook part cooperates with the unlocking swing arm to drive the lock part to extend and retract on the housing. The hook part of the latch is located between the unlocking rotating block and the handle rotating block laterally. The rotating block gear at least partially overlaps longitudinally with the hook part of the latch and extends to mesh with the unlocking gear.

3. The fully automatic concealed door lock body structure according to claim 2, characterized in that, The unlocking gear is located coaxially above the main gear, the unlocking swing arm is located longitudinally between the unlocking gear and the main gear, and the main gear at least partially overlaps longitudinally with the hook of the lock tongue.

4. The fully automatic concealed door lock body structure according to claim 3, characterized in that, The hook portion of the latch is provided with a guide groove extending along the movement direction of the latch, and the housing is provided with a limiting member passing through the guide groove; the hook portion of the latch is provided with a movable groove for the movement of the unlocking swing arm, and the two sides of the movable groove are provided with an unlocking positioning groove and an upper locking positioning groove for positioning the unlocking swing arm.

5. The fully automatic concealed door lock body structure according to claim 1, characterized in that, The first transmission connection structure is as follows: the main gear is provided with a mounting hole that cooperates with the unlocking rotating block, the mounting hole is provided with a first arc-shaped groove communicating with it, the unlocking rotating block is provided with a first protrusion that extends into the first arc-shaped groove, and the first protrusion can rotate relative to it in the first arc-shaped groove; two first arc-shaped grooves are symmetrically provided on the main gear, and two corresponding first protrusions are provided.

6. The fully automatic concealed door lock body structure according to claim 1, characterized in that, The second transmission connection structure is as follows: the unlocking gear has a meshing part, the rotating block gear has a toothed part, the toothed part is connected to the meshing part in a transmission connection, the unlocking gear has a second arc-shaped groove, and the unlocking rotating block has a second protrusion extending into the second arc-shaped groove, the second protrusion being able to rotate relative to the second arc-shaped groove.

7. The fully automatic concealed door lock body structure according to claim 1, characterized in that, The housing contains a Hall element for detecting the position of the buckle box, and the Hall element is electrically connected to the circuit board.

8. The fully automatic concealed door lock body structure according to claim 1, characterized in that, The housing is provided with a first micro switch electrically connected to the circuit board, and the unlocking rotary block is fitted with a trigger piece, which follows the movement of the unlocking rotary block and triggers the first micro switch; The housing contains a detection gear and a second micro switch. The second micro switch is electrically connected to the circuit board. The detection gear meshes with the main gear. The detection gear has a trigger protrusion that rotates with the detection gear and triggers the second micro switch. The housing is equipped with a third micro switch electrically connected to the circuit board, and the handle rotating block is equipped with an actuating block, which rotates with the handle rotating block and triggers the third micro switch.

9. The fully automatic concealed door lock body structure according to claim 1, characterized in that, The housing is provided with a positioning torsion spring, one end of which is connected to the housing and the other end of which is connected to the unlocking block. The positioning torsion spring at least partially overlaps the bolt longitudinally. The housing is also provided with a reset torsion spring, which is sleeved on the handle block. One end of which is connected to the housing and the other end of which is connected to the handle block.

10. A concealed door, comprising a door frame and a door leaf mounted on the door frame, characterized in that, The door leaf is equipped with the fully automatic concealed door lock body structure as described in any one of claims 1-9, and the door frame is equipped with a latch box that cooperates with the lock tongue of the fully automatic concealed door lock body structure.

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