Invisible door lock body

Abstract

The utility model belongs to the technical field of locks, and particularly relates to an invisible door lock body which comprises a shell. The shell is arranged on a door body, a first lock cylinder part and a second lock cylinder part are arranged in the shell, and the first lock cylinder part and the second lock cylinder part are connected through a linkage assembly; a handle is arranged outside the first lock cylinder piece, and a handle is not arranged outside the second lock cylinder piece. The second lock cylinder piece comprises a gear; the gear is in meshed connection with one end of the linkage assembly; the lock head assembly is arranged in the shell; the lock head assembly is connected with the linkage assembly. A handle is arranged on the first lock cylinder part and located on the inner side of a room, people can open the door through the handle, a handle is not arranged on the second lock cylinder part and located on the outer side of the room, the handle cannot be seen from the outside, and the lock cylinder looks like a wall or a certain ornament or a part of furniture and is more attractive in appearance. And meanwhile, the gear is meshed with one end of the linkage assembly, the unlocking stroke is adjustable, and various requirements of customers are met.

Description

Technical Field

[0001] This utility model belongs to the field of lock technology, and in particular relates to a hidden door lock body. Background Technology

[0002] As living standards improve, people's aesthetic demands are also increasing. During home decoration, people often want to conceal doors, leading to the emergence of hidden doors. A hidden door is one where the door is hidden, creating the illusion that it's not a door at all, but rather part of a wall, decoration, or furniture. Designers consider different spatial needs and styles when designing a hidden door, ensuring it is both practical and decorative.

[0003] Some existing hidden doors still have handles, which are not aesthetically pleasing or concealed, and people can still clearly see that it is a door. At the same time, some existing hidden doors use the lever principle to open, which is not very reliable and has a short lifespan. Utility Model Content

[0004] The purpose of this utility model is to provide a hidden door lock body, which aims to solve the technical problems in the prior art mentioned above, such as "some hidden doors still have handles, which are not aesthetically pleasing or concealed, and people can still clearly see that this is a door. At the same time, some existing hidden doors use the lever principle to open the door, which is not reliable and has a short lifespan".

[0005] To achieve the above objectives, this utility model provides a concealed door lock body, including a housing; it is disposed on a door body, and a first lock cylinder and a second lock cylinder are disposed inside the housing, the first lock cylinder and the second lock cylinder being connected by a linkage assembly; the first lock cylinder is provided with a handle on its exterior, while the second lock cylinder is not provided with a handle on its exterior; the second lock cylinder includes a gear; the gear is meshed with one end of the linkage assembly;

[0006] A lock assembly disposed within the housing, the lock assembly being movable along a first direction between a locking position protruding from the housing and a retracted position retracted into the housing;

[0007] The lock head assembly is connected to the linkage assembly. By rotating the first lock cylinder and the second lock cylinder, the linkage assembly can be driven to move, thereby forcing the lock head assembly to move forward or backward in the first direction.

[0008] Optionally, the linkage component includes a first linkage member and a second linkage member; the first linkage member and the second linkage member abut against each other and are linked; one end of the first linkage member is engaged with the gear; by rotating the gear, the first linkage member can move back and forth perpendicular to the first direction.

[0009] Optionally, a rack is provided at one end of the first linkage member, and the rack is meshed with the gear.

[0010] Optionally, the second linkage is rotatably disposed within the housing, and the lock assembly includes a latch and a stop; the latch and the stop are connected by a connector, and the stop is provided with a spring, one end of which is connected to the housing and the other end of which is connected to the stop; the second linkage can rotatably abut against the stop, forcing the spring to compress or extend, and driving the latch to move between a locked position protruding from the housing and a retracted position retracted into the housing.

[0011] Optionally, the second linkage component includes a first abutment and a second abutment; the first abutment abuts against the stop block, and the second abutment abuts against the first linkage component.

[0012] Optionally, the first linkage member is provided with a first locking connector at the end away from the rack, and the first lock cylinder is provided with a second locking connector. The first locking connector and the second locking connector cooperate to engage with each other. Rotating the first lock cylinder can drive the first linkage member to move back and forth in a direction perpendicular to the first direction.

[0013] Optionally, the first lock cylinder is provided with a torsion spring, which is used for automatic reset.

[0014] Optionally, the housing is provided with a plurality of guide grooves communicating with the interior, and the linkage component, the first lock cylinder component and the lock head component are each provided with a plurality of guide protrusions, which are engaged in the guide grooves.

[0015] Optionally, the gear has a lock core hole in the middle, and the lock core hole does not have an external handle.

[0016] Compared with the prior art, the above-mentioned one or more technical solutions in the concealed door lock body provided by the present utility model embodiment have at least one of the following technical effects:

[0017] The first lock cylinder has a handle located on the inside of the room, allowing people to open the door. The second lock cylinder does not have a handle and is located on the outside of the room. From the outside, the handle is not visible, and it looks like a wall, a decoration, or part of the furniture, making it more aesthetically pleasing. At the same time, by setting a gear and engaging with one end of the linkage component, the unlocking stroke is adjustable to meet the diverse needs of customers. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a partial structural schematic diagram of the present invention.

[0021] Figure 3 This is an exploded view of part of the structure of this utility model.

[0022] The following are the labeling elements in the figure:

[0023] 100. Housing; 110. First lock cylinder component; 111. Second locking connector; 112. Torsion spring; 120. Second lock cylinder component; 121. Gear; 1211. Lock cylinder hole; 130. Guide groove; 140. Guide protrusion;

[0024] 200, First linkage component; 210, rack and pinion; 220, First locking connector;

[0025] 300. Second linkage component; 310. First abutment joint; 320. Second abutment joint;

[0026] 410. Locking tongue; 420. Stop block; 430. Connecting part; 440. Spring. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and 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 utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0031] In one embodiment of this utility model, according to Figure 1-3 As shown, a concealed door lock body includes a housing 100, which is disposed on a door body. The housing 100 contains a first lock cylinder 110 and a second lock cylinder 120, which are connected by a linkage assembly. The first lock cylinder 110 has a handle on its exterior, while the second lock cylinder 120 does not. The second lock cylinder 120 includes a gear 121, which meshes with one end of the linkage assembly.

[0032] A lock assembly is disposed within the housing 100, and the lock assembly is movable along a first direction between a locking position protruding from the housing 100 and a retracted position retracted into the housing 100;

[0033] The lock cylinder assembly is connected to the linkage assembly. By rotating the first lock cylinder 110 and the second lock cylinder 120, the linkage assembly can be driven to move, thereby forcing the lock cylinder assembly to move forward or backward in a first direction. The gear 121 has a lock cylinder hole 1211 in the middle, and there is no handle on the lock cylinder hole 1211.

[0034] Specifically, the first lock cylinder 110 has a handle located on the inside of the room, which allows people to open the door. The second lock cylinder 120 does not have a handle and is located on the outside of the room. From the outside, the handle is not visible, and it looks like a wall, a decoration, or part of the furniture, making it more aesthetically pleasing. At the same time, by setting a gear 121 to mesh with one end of the linkage component, the unlocking stroke is adjustable to meet the diverse needs of customers.

[0035] In another embodiment of this utility model, according to Figure 2 and 3As shown, the linkage assembly includes a first linkage member 200 and a second linkage member 300; the first linkage member 200 and the second linkage member 300 abut against each other and are linked; one end of the first linkage member 200 is meshed with a gear 121; by rotating the gear 121, the first linkage member 200 can move back and forth perpendicular to a first direction. One end of the first linkage member 200 is provided with a rack 210, which is meshed with the gear 121.

[0036] Specifically, the rack 210 allows for adjustable unlocking range. To unlock with one full rotation, the gear 121 is placed in the middle of the rack 210; to unlock with multiple rotations, the gear 121 is placed at the end of the rack 210, thus meeting diverse customer needs.

[0037] In another embodiment of this utility model, according to Figure 2 and 3 As shown, the second linkage 300 is rotatably disposed within the housing 100. The lock assembly includes a latch 410 and a stop 420. The latch 410 and the stop 420 are connected by a connector 430. A spring 440 is provided on the stop 420. One end of the spring 440 is connected to the housing 100, and the other end is connected to the stop 420. The second linkage 300 can rotatably abut against the stop 420, forcing the spring 440 to compress or extend, driving the latch 410 to move between a locked position protruding from the housing 100 and a retracted position retracted into the housing 100. The second linkage 300 includes a first abutment 310 and a second abutment 320. The first abutment 310 abuts against the stop 420, and the second abutment 320 abuts against the first linkage 200.

[0038] Specifically, when the second lock cylinder 120 is rotated, the first linkage 200 moves perpendicular to the first direction. When it moves away from the second linkage 300, the first abutment 310 moves away from the release stop 420. Under the action of the spring 440, the stop 420 moves forward in the first direction, driving the latch 410 to the locking position protruding from the housing 100. When the first linkage 200 abuts against and approaches the second linkage 300, it drives the second linkage 300 to rotate, causing the first abutment 310 to press against the stop 420. The stop 420 then compresses the spring 440 and moves backward in the first direction, driving the latch 410 to the retracted position within the housing 100.

[0039] In another embodiment of this utility model, according to Figure 2 and 3 As shown, the first lock cylinder 110 is provided with a torsion spring 112, which is used for automatic reset. Specifically, the torsion spring 112 on the first lock cylinder 110 facilitates the user to reset the lock cylinder by rotating the handle.

[0040] In another embodiment of this utility model, according to Figure 2 and 3 As shown, the first linkage member 200 is provided with a first locking connector 220 at the end away from the rack 210, and the first lock cylinder member 110 is provided with a second locking connector 111. The first locking connector 220 and the second locking connector 111 engage with each other. Rotating the first lock cylinder member 110 can drive the first linkage member 200 to move back and forth in a direction perpendicular to the first direction.

[0041] In another embodiment of this utility model, according to Figure 2 and 3 As shown, the housing 100 is provided with multiple guide grooves 130 communicating with the interior, and the linkage assembly, the first lock cylinder 110, and the lock head assembly are all provided with multiple guide protrusions 140, which are engaged within the guide grooves 130. Specifically, the guide grooves 130 and guide protrusions 140 are provided to facilitate the movement of each component according to the prescribed running trajectory, reducing errors, jamming, or malfunctions.

[0042] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of this utility model. It should not be construed that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art, the architectural form of this utility model can be flexibly varied without departing from its concept, and a series of products can be derived. Any simple deductions or substitutions should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. A concealed door lock body, characterized in that, The device includes a housing disposed on a door body. The housing contains a first lock cylinder and a second lock cylinder, which are connected by a linkage assembly. The first lock cylinder has an external handle, while the second lock cylinder does not have an external handle. The second lock cylinder includes a gear, which meshes with one end of the linkage assembly. A lock assembly disposed within the housing, the lock assembly being movable along a first direction between a locking position protruding from the housing and a retracted position retracted into the housing; The lock head assembly is connected to the linkage assembly. By rotating the first lock cylinder and the second lock cylinder, the linkage assembly can be driven to move, thereby forcing the lock head assembly to move forward or backward in the first direction.

2. The concealed door lock body according to claim 1, characterized in that, The linkage component includes a first linkage member and a second linkage member; the first linkage member and the second linkage member abut against each other and are linked; one end of the first linkage member is engaged with the gear; by rotating the gear, the first linkage member can move back and forth perpendicular to the first direction.

3. The concealed door lock body according to claim 2, characterized in that, The first linkage component has a rack at one end, and the rack meshes with the gear.

4. The concealed door lock body according to claim 3, characterized in that, The second linkage is rotatably disposed within the housing. The lock assembly includes a latch and a stop. The latch and the stop are connected by a connector. A spring is provided on the stop. One end of the spring is connected to the housing, and the other end is connected to the stop. The second linkage can rotate to abut against the stop, forcing the spring to compress or extend, and driving the latch to move between a locking position protruding from the housing and a retracted position retracted into the housing.

5. The concealed door lock body according to claim 4, characterized in that, The second linkage component includes a first abutment and a second abutment; the first abutment abuts against the stop block, and the second abutment abuts against the first linkage component.

6. The concealed door lock body according to claim 3, characterized in that, The first linkage member has a first locking connector at the end away from the rack, and the first lock cylinder has a second locking connector. The first locking connector and the second locking connector engage with each other. Rotating the first lock cylinder can drive the first linkage member to move back and forth in a direction perpendicular to the first direction.

7. The concealed door lock body according to claim 6, characterized in that, The first lock cylinder is provided with a torsion spring, which is used for automatic reset.

8. The concealed door lock body according to claim 1, characterized in that, The housing is provided with multiple guide grooves that communicate with the interior. The linkage component, the first lock cylinder component, and the lock head component are all provided with multiple guide protrusions, which are engaged in the guide grooves.

9. The concealed door lock body according to claim 1, characterized in that, The gear has a lock core hole in the middle, and there is no handle on the lock core hole.

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