Interlocking concealed lockset

Abstract

The application relates to the technical field of locks, and particularly discloses a linkage hidden lock, which comprises a fixed body, a movable body, a lock body, a lock catch and a pull cable, wherein the fixed body is provided with a turnover auxiliary device, the movable body is connected with the fixed body through the turnover auxiliary device, the movable body can be unfolded or stored by being turned over around the turnover auxiliary device, a pull cable linkage device is arranged in the movable body, the lock catch is arranged in the fixed body or the movable body in a hidden mode, the lock body is arranged in a corresponding mode with the lock catch, and the pull cable is arranged between the lock catch and the pull cable linkage device, so that the lock catch can be linked with the turnover auxiliary device. The linkage hidden lock can realize linkage between the lock catch and the pull cable linkage device, the lock catch can be hidden when not in use, space utilization, safety and aesthetic appearance are improved, the linkage hidden lock has simple structure, fewer related component parts, light weight and high reliability, and is suitable for various scenes.

Description

Technical Field

[0001] This invention relates to the field of lock technology, and in particular to a linked concealed lock. Background Technology

[0002] Due to their simple structure, latches are commonly used in automobiles, homes, and other machinery. Taking automobiles as an example, to facilitate adjustments to the interior space, the third-row seats are typically foldable. When the seats are unfolded, the backrests need to be locked for comfortable seating. However, existing latches consist of a latch and a mounting plate, usually a single integrated structure, directly fixed to the vehicle body via the mounting plate. The latch is locked when the seat backrest lock engages with the latch. For easy connection between the lock body and the latch, both the latch and mounting plate are generally external, protruding when not in use. This protrusion restricts interior space utilization, reducing space efficiency. Furthermore, it affects safety and aesthetics, failing to meet user needs. Summary of the Invention

[0003] The technical problem to be solved by this invention is: how to solve the problem of reduced space utilization, safety and aesthetics of the device caused by the external protruding state of the existing latch.

[0004] To solve the above-mentioned technical problems, the present invention provides a linked concealed lock, comprising:

[0005] A fixed body, wherein a flipping auxiliary device is provided on the fixed body;

[0006] The movable body is connected to the fixed body through the flipping auxiliary device. The movable body can be flipped and unfolded or stored around the flipping auxiliary device. The movable body is equipped with a cable linkage device.

[0007] A latch is concealed within the fixed body or the movable body, and extends out of the fixed body or the movable body when the movable body is unfolded relative to the fixed body.

[0008] Lock body, wherein the lock body is provided correspondingly to the latch; and

[0009] A cable is provided between the buckle and the cable linkage device so that the buckle can be linked with the flipping auxiliary device.

[0010] More preferably, the lock body is disposed on the fixed body, the buckle is disposed on the movable body, and the cable is connected to the cable linkage device through the interior of the fixed body.

[0011] More preferably, the lock body is disposed on the movable body, the latch is disposed on the fixed body, and the cable is connected to the cable linkage device through the interior of the movable body.

[0012] More preferably, the latch includes:

[0013] The housing has an internal cavity;

[0014] A buckle body, movably positioned within the cavity, one end of which is connected to the pull cable; when the buckle body moves along the N-direction, its other end extends outward from the outer side of the housing and connects to the lock body; and

[0015] An elastic element is disposed within the cavity and abuts against the buckle body, the elastic element providing a retaining force for the buckle body to move in the N direction.

[0016] More preferably, the housing has a first through hole and a second through hole at opposite ends, and one end of the cable passes through the second through hole and connects to the buckle body.

[0017] More preferably, the buckle body includes a limiting part and an engaging part. The limiting part is movably disposed in the cavity, and the engaging part corresponds to the first through hole. The engaging part can extend out of the outer side of the housing or retract into the inner side of the housing through the first through hole.

[0018] More preferably, a first step structure is formed at the connection between the limiting part and the engaging part, and a second step structure is formed at the transition between the cavity and the first through hole. The second step structure cooperates with the first step structure to limit the buckle body.

[0019] More preferably, a cable clamp is installed on the housing corresponding to the second through hole, and one end of the cable is led out of the housing through the cable clamp and connected to the cable linkage device.

[0020] More preferably, the buckle body, the elastic element, and the cable snap fastener are arranged on the same straight line.

[0021] More preferably, the outer wall of the housing is provided with a mounting plate, the mounting plate is provided with mounting holes, and the mounting plate is connected to the fixed body or the movable body.

[0022] Compared with existing technologies, the linked concealed lock provided by this invention has the following advantages:

[0023] This invention incorporates a latch within a fixed or movable body. When the movable body is folded or flipped relative to the fixed body, a cable winds around a cable linkage device, retracting the latch into the fixed or movable body for concealment. When the movable body unfolds relative to the fixed body, the cable releases through the cable linkage device, allowing the latch to extend out of the fixed or movable body, enabling the lock body to lock onto the latch and restricting the rotation of the movable body. This invention enables the latch to be linked with the cable linkage device and conceals the latch when not in use, improving space utilization, security, and aesthetics. This linked concealed lock has a simple structure, few components, is lightweight, and highly reliable, making it suitable for various scenarios. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure when Embodiment 1 of the present invention is unfolded.

[0025] Figure 2 This is a schematic diagram of the structure when the device is stored in Embodiment 1 of the present invention.

[0026] Figure 3 This is a schematic diagram of the structure when the second embodiment of the present invention is unfolded.

[0027] Figure 4 This is a schematic diagram of the structure when the device is stored in Embodiment 2 of the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of the latch described in this invention.

[0029] In the picture,

[0030] 1. Fixed body;

[0031] 2. Active body;

[0032] 3. Tilting auxiliary device;

[0033] 4. Lock body;

[0034] 5. Lock; 501. Housing; 502. Cavity; 503. First through hole; 504. Second through hole; 505. Buckle body; 5051. Limiting part; 5052. Engaging part; 506. Cable locking piece; 507. Elastic element; 508. Mounting plate; 509. Mounting hole;

[0035] 6. Cable;

[0036] 7. Cable linkage device. Detailed Implementation

[0037] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0038] In the description of this invention, it should be understood that the terms "inner", "outer", "between", "near", "far away", "extend...outer", "retract...inner", "relative", etc., used in this invention to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0039] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, referring to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection via an intermediate medium; or a connection within two components. Those skilled in the art will understand the specific meaning of these terms in this invention based on the specific circumstances.

[0040] Example 1

[0041] like Figure 1 and Figure 2 As shown, this embodiment provides a linkage concealed lock, which includes a fixed body 1, a movable body 2, a flipping auxiliary device 3, and a cable linkage device 7. The flipping auxiliary device 3 is disposed on the fixed body 1, and the cable linkage device 7 is disposed on the movable body 2 and can flip synchronously with the movable body 2.

[0042] In the above example, the movable body 2 and the fixed body 1 are connected by a flipping auxiliary device 3 to realize the storage and unfolding of the movable body 2. For ease of explanation, a car is used as an example. The fixed body 1 is the car body, and the movable body 2 is a retractable seat. The seat is installed inside the car body by the flipping auxiliary device 3. When the seat needs to be stored, the seat is flipped around the flipping auxiliary device 3 to a horizontal state. During the storage process, the cable linkage device 7 also rotates synchronously with the movable body 2.

[0043] In a specific example of the present invention, the linkage concealed lock also includes a lock body 4, a latch 5, and a cable 6. The latch 5 is concealed inside the fixed body 1, such as inside the vehicle body, while the lock body 4 is located on the movable body 2, such as inside the seat. When the movable body 2 is unfolded relative to the fixed body 1, the latch 5 extends out of the fixed body 1. That is, when the seat is unfolded, the latch 5 can extend and connect and lock with the lock body 4, at which time the seat is in the unfolded use state. The cable 6 is located between the latch 5 and the cable linkage device 7, so that the latch 5 can be linked with the flipping auxiliary device 3. That is, the cable linkage device 7 moves in tandem with the flipping auxiliary device 3. During the seat storage process, the cable 6 can be wound and tightened on the cable linkage device 7, thereby concealing the latch 5 inside the vehicle body. During the seat unfolding process, the cable 6 is released on the cable linkage device 7, at which time the latch 5 will gradually extend. When the seat is unfolded into place, the latch 5 can just connect and lock with the lock body 4.

[0044] In some examples of the present invention, such as Figure 5 As shown, the latch 5 includes a housing 501, a latch body 505, and an elastic element 507. Specifically, the housing 501 has a cavity 502 inside, and the latch body 505 is movably placed in the cavity 502. The housing 501 has a first through hole 503 and a second through hole 504 at opposite ends. One end of the latch body 505 can extend out of the outer side of the housing 501 through the first through hole 503 and connect to the lock body 4. One end of the pull cable 6 passes through the second through hole 504 and connects to the latch body 505. By applying a pulling force to the pull cable 6, the latch body 505 can move in the P direction, that is, the latch body 505 retracts into the housing 501 to achieve a hidden effect. In addition, the elastic element 507 is provided in the cavity 502 and abuts against the latch body 505. The elastic element 507 provides a retaining force for the latch body 505 to move in the N direction.

[0045] It should be noted that in some examples of the present invention, in order to facilitate the installation of the buckle body 505 and the elastic element 507, the housing 501 is generally configured as a detachable structure, such as riveting, bolting, snap-fitting, magnetic connection, adhesive, etc., which is beneficial to the assembly of the buckle 5.

[0046] In some examples of the present invention, the buckle body 505 includes a limiting part 5051 and an engaging part 5052. The limiting part 5051 is movably disposed in the cavity 502, and the engaging part 5052 corresponds to the first through hole 503. The engaging part 5052 can extend out of the outer side of the housing 501 or retract into the inner side of the housing 501 through the first through hole 503. The limiting part 5051 is movably disposed in the cavity 502, that is, it can move along the P direction or the N direction. In addition, the engaging part 5052 corresponds to the first through hole 503 and can extend out of the outer side of the housing 501 or retract into the inner side of the housing 501 through the first through hole 503. When the engaging part 5052 is retracted into the inner side of the housing 501, it is in a hidden state. When the engaging part 5052 extends out of the outer side of the housing 501, it can be engaged with the lock body to achieve locking.

[0047] In the above example, it should be noted that when the buckle body 505 is connected and locked with the lock body 4, the buckle body 505 is in a tensile state. In order to ensure the overall structural strength of the buckle body 505, the limiting part 5051 and the engaging part 5052 should be integrally formed.

[0048] In some examples of the present invention, the elastic element 507 is disposed in the cavity 502 near the second through hole 504. The elastic element 507 abuts against the buckle body 505. The elastic element 507 can provide a retaining force for the buckle body 505 to move in the N direction. That is, when the tension of the cable 6 decreases or even disappears, the buckle body 505 can move in the N direction under the elastic force of the elastic element 507, so that the engaging part 5052 extends out of the housing 501 through the first through hole 503 for the locking body 4 to connect.

[0049] It should be noted that, in this example, the elastic element 507 is preferably a compression spring.

[0050] In some examples of the present invention, a first step structure is formed at the connection between the limiting part 5051 and the engaging part 5052, and a second step structure is formed at the transition between the cavity 502 and the first through hole 503. The second step structure cooperates with the first step structure to limit the buckle body 505, thereby limiting the limiting part 5051 so that the limiting part 5051 can only move linearly along the P direction or N direction within the cavity 502.

[0051] In some examples of the present invention, in order to avoid friction between the cable 6 and the housing 501 and damage to the latch 5, a cable latch 506 is also provided on the housing 501. The cable latch 506 is provided corresponding to the second through hole 504. One end of the cable 6 is led out of the housing 501 through the cable latch 506, thereby protecting the cable 6 and the housing 501. One end of the cable 6 is led out of the housing 501 through the cable latch 506 and connected to the cable linkage device 7.

[0052] In other examples of the present invention, the buckle body 505, the elastic element 507, and the cable snap fastener 506 are placed on the same straight line, so that the elastic force of the elastic element 507 and the tension of the cable 6 are on the same straight line, thereby ensuring the reliability of the buckle body 505 when it moves along the P direction or the N direction.

[0053] In other examples of the present invention, in order to facilitate the installation of the telescopic concealed buckle, an mounting plate 508 is provided on the outer wall of the housing 501, and a mounting hole 509 is provided on the mounting plate 508. The position and size of the mounting plate 508 and the mounting hole 509 relative to the housing 501 need to be determined according to the size of the equipment installation and docking. Taking a car as an example, the mounting plate 508 is connected to the car body, and the buckle 5 is placed inside the car body.

[0054] Example 2

[0055] The difference between this embodiment 2 and the embodiment is that: Figure 3 and Figure 4 As shown, the linked concealed lock includes a lock body 4, a latch 5, and a cable 6. The latch 5 is concealed inside the movable body 2, such as inside the seat, while the lock body 4 is located on the fixed body 1, such as inside the vehicle body. When the movable body 2 is unfolded relative to the fixed body 1, the latch 5 extends out of the movable body 2. That is, when the seat is unfolded, the latch 5 can extend and connect and lock with the lock body 4. At this time, the cable 6 is connected to the cable linkage device 7 through the interior of the movable body 2. During the seat folding process, the cable 6 can be wound and tightened on the cable linkage device 7, thereby concealing the latch 5 inside the vehicle body. During the seat unfolding process, the cable 6 is released on the cable linkage device 7, at which time the latch 5 will gradually extend. When the seat is fully unfolded, the latch 5 can connect and lock with the lock body 4.

[0056] It should be noted that the housing 501 is fixed inside the movable body 2, such as inside the seat, by the mounting plate 508. That is, the engaging part 5052 only pops out and connects and locks with the lock body 4 when the seat is in the unfolded state.

[0057] Since Embodiment 1 and Embodiment 2 have the same structure, differing only in orientation, the working process of this invention is based on the scheme of Embodiment 1 as follows:

[0058] In Example 1, please refer to Figure 1 , Figure 2 as well as Figure 5When the movable body 2 is folded and stored relative to the fixed body 1, the cable linkage device 7 rotates with the movable body 2. At this time, when the cable 6 is wound around the cable linkage device 7 and tightened, when the tension of the cable 6 overcomes the elastic force of the elastic element 507, the buckle body 505 is pulled to move along the P direction. At this time, the engaging part 5052 retracts into the housing 501 and is hidden. When the movable body 2 is unfolded relative to the fixed body 1, the cable 6 gradually loosens on the cable linkage device 7. At this time, when the elastic force of the elastic element 507 is greater than the tension of the cable 6, the buckle body 505 moves along the N direction under the action of the elastic force until the engaging part 5052 extends out of the housing 501 and is locked with the lock body 4. In addition, the working process of embodiment 2 is similar to that of embodiment 1, and will not be repeated.

[0059] In summary, this invention provides a linked concealed lock. The lock buckle 5 is located within a fixed body 1 or a movable body 2. When the movable body 2 is flipped and folded relative to the fixed body 1, the pull cable 6 winds around the pull cable linkage device 7, thereby retracting the lock buckle 5 into the fixed body 1 or the movable body 2, achieving a concealed effect. When the movable body 2 is unfolded relative to the fixed body 1, the pull cable 6 is released from the pull cable linkage device 7, at which point the lock buckle 5 extends out of the fixed body 1 or the movable body 2, allowing the lock body 4 to lock with the lock buckle 5, thus restricting the rotation of the movable body 2. This invention enables the linkage between the lock buckle 5 and the pull cable linkage device 7, and hides the lock buckle when not in use, improving space utilization, security, and aesthetics. This linked concealed lock has a simple structure, few related parts, is lightweight, and has high reliability, making it suitable for various scenarios.

[0060] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention. The basic principles, main features, and advantages of the present invention have been shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above preferred embodiments. The embodiments should be considered exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalents of the claims be included within the present invention.

[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A linked concealed lock, characterized in that, include: A fixed body, wherein a flipping auxiliary device is provided on the fixed body; The movable body is connected to the fixed body through the flipping auxiliary device. The movable body can be flipped and unfolded or stored around the flipping auxiliary device. The movable body is equipped with a cable linkage device. A latch is concealed within the fixed body or the movable body, and extends out of the fixed body or the movable body when the movable body is unfolded relative to the fixed body. A lock body, wherein the lock body is provided correspondingly to the latch; as well as A cable is provided between the buckle and the cable linkage device so that the buckle can be linked with the flipping auxiliary device; The latch includes: The housing has an internal cavity; A buckle body, movably positioned within the cavity, one end of which is connected to the cable; when the buckle body moves along the N-axis, its other end extends outward from the outer side of the housing and connects to the lock body; and An elastic element is disposed within the cavity and abuts against the buckle body, the elastic element providing a retaining force for the buckle body to move in the N direction; The shell has a first through hole and a second through hole at opposite ends, and one end of the cable passes through the second through hole and connects to the buckle body. The buckle body includes a limiting part and an engaging part. The limiting part is movably disposed in the cavity, and the engaging part corresponds to the first through hole. The engaging part can extend out of the outer side of the housing or retract into the inner side of the housing through the first through hole. The connection between the limiting part and the engaging part forms a first step structure, and the transition between the cavity and the first through hole forms a second step structure. The second step structure cooperates with the first step structure to limit the buckle body.

2. The linked concealed lock according to claim 1, characterized in that, The lock body is mounted on the fixed body, the buckle is mounted on the movable body, and the cable is connected to the cable linkage device through the interior of the fixed body.

3. The linked concealed lock according to claim 1, characterized in that, The lock body is located on the movable body, the buckle is located on the fixed body, and the cable is connected to the cable linkage device through the interior of the movable body.

4. The linked concealed lock according to claim 1, characterized in that, A cable clamp is installed on the housing corresponding to the second through hole. One end of the cable is led out of the housing through the cable clamp and connected to the cable linkage device.

5. A linked concealed lock according to claim 4, characterized in that, The buckle body, elastic element, and cable snap fastener are arranged on the same straight line.

6. A linked concealed lock according to claim 1, characterized in that, The outer wall of the housing is provided with a mounting plate, and the mounting plate has mounting holes. The mounting plate is connected to the fixed body or the movable body.

Images