Hidden type advancing self-opening and self-closing lock

Abstract

A concealed advancing self-opening lock belongs to the technical field of cabinet locks and comprises a lock body arranged on a cabinet, a lock seat arranged on a cabinet door and a hook, the lock body comprises a first shell, a movable sliding block and a lock body base, a first spring assembly is arranged on the side, away from the lock body base, of the first shell, the movable sliding block is connected with the first shell in a sliding mode, and the movable sliding block is connected with the first shell in a sliding mode. The movable sliding block is provided with a protrusion protruding towards the direction of the hook, the lock seat comprises a second shell, and the hook is connected with the second shell in a sliding mode. The lock is hidden between the case frame and the door, locking and unlocking of the lock are completed in the advancing process of the door, the unlocking procedure is simplified, and the safety of the case is improved.

Description

Technical Field

[0001] This invention belongs to the field of cabinet lock technology, and particularly relates to a concealed self-opening and closing lock. Background Technology

[0002] Currently, signal enclosure door locks on the signal market typically use keys to control the latch, or keys to control a crank, which in turn controls the latch. This has two main drawbacks: First, installing the lock requires a keyhole in the cabinet or enclosure door. Although the keyhole is covered by the lock body, most lock bodies are non-metallic, which weakens signal shielding, causing electromagnetic interference and severely impacting the enclosure's shielding performance. Second, the lock is installed on the upper surface of the door, exposed outside the enclosure. This makes it vulnerable to vandalism, significantly affecting the normal operation of the equipment inside. Furthermore, the aging and weathering of the lock body material will, over time, severely affect the cabinet's aesthetics. Third, the lock itself has a certain height, increasing the enclosure width after installation and wasting space. Disadvantage 3: Traditional locks installed on chassis doors rely on keys to drive the lock cylinder or handle. This is not only cumbersome to operate, but also requires the key to be designed to match the lock, increasing design and material costs and wasting resources. In addition, if the key is lost, the chassis door cannot be opened and can only be opened by forcibly removing the door, making it impossible to lock properly. Summary of the Invention

[0003] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a concealed self-opening lock that is hidden between the chassis frame and the door. The locking and unlocking of the lock is completed during the movement of the door, which simplifies the unlocking procedure and improves the security of the chassis.

[0004] To achieve the above objectives, the main technical solutions adopted by the present invention include: A concealed self-opening lock includes a lock body mounted on a cabinet, a lock seat mounted on the cabinet door, and a hook. The lock body includes a first housing, a sliding block, and a lock body base. A first spring assembly is provided on the side of the first housing away from the lock body base. One end of the first spring assembly is fixedly connected to the first housing, and the other end is fixedly connected to a first force plate. A sliding block is provided below the first force plate and is slidably connected to the first housing. The sliding block has a protrusion extending towards the hook. The first spring assembly provides a thrust to the sliding block towards the lock body base. The lock body base has a base ramp extending towards the first spring assembly. The space between the extended base ramp and the first housing at the opposite position is for accommodating the sliding block and the hook body. The lock seat includes a second housing. The end of the hook away from the hook body is disposed in the second housing and connected to the second housing. The lock body is slidably connected. A second spring assembly and a third spring assembly are provided inside the second housing. One end of each spring assembly is fixedly connected to the inner wall of the second housing, and the other end is connected to a hook. The second spring assembly provides a thrust for the hook to move towards the lock body, and the third spring assembly provides a thrust for the hook to move away from the lock body. As the cabinet door moves towards the cabinet body, the hook moves with the door towards the lock body. The hook moves along the outer side of the base slope, and the hook body pushes up the sliding block and enters the inner wall of the base slope. The first spring assembly applies force to the sliding block, causing it to move towards the hook body and press against it to complete the locking. As the cabinet door continues to move towards the cabinet body under force, the hook body abuts against the sliding block and moves upward, causing the hook body to detach from the inner wall of the base slope. Continuing to apply force to the cabinet door, the hook body flips over the protrusion of the sliding block, thus separating the hook from the lock body.

[0005] Furthermore, the lock body is installed on the side of the cabinet frame facing the cabinet door, and the lock seat is installed on the side of the cabinet door facing the cabinet.

[0006] Furthermore, after the hook and lock body are fully locked, there is a gap between the cabinet door and the cabinet body. This gap matches the distance the hook travels along the sliding slider from the bottom of the protrusion over the protrusion to the top of the protrusion.

[0007] Furthermore, the first housing has an upper housing and a lower housing. The upper housing has an internal accommodating space, and the first spring assembly is disposed in the accommodating space of the upper housing. The side of the lower housing near the movable slider is a lower housing slope, and a movable slider guide rail is provided on the lower housing slope. The side of the movable slider near the lower housing slope is provided with a movable slider groove that matches the movable slider guide rail, so that the movable slider moves obliquely along the movable slider guide rail.

[0008] Furthermore, the upper housing has a first guide post and a second guide post within its accommodating space, and the first force-applying plate has slots that mate with the first guide post and the second guide post. The first guide post and the second guide post provide guidance for the movement of the first force-applying plate.

[0009] Furthermore, there are two first guide posts and one second guide post. The first and second guide posts are located on opposite sides of the first spring assembly and are arranged in a triangular pattern.

[0010] Furthermore, the movable slider is provided with an operation hole.

[0011] Furthermore, the second housing of the lock seat is a box structure with an open top and front. One end of the second spring assembly is fixedly connected to the back plate of the second housing, and the other end is fixedly connected to the second force plate. The second force plate abuts against or is fixedly connected to the back of the hook body plane of the hook. The bottom of the front end of the second housing is the front edge of the second housing. A third spring assembly is provided on the side of the front edge of the second housing facing the hook. The other end of the third spring assembly is fixedly connected to the hook.

[0012] Furthermore, a hook guide groove is provided on the inner side of the second housing sidewall of the lock seat, and a hook slider is provided at the corresponding position on the hook sidewall. The hook guide groove and the hook slider are inclined, and the inclination angle matches the inclination angle of the base slope of the lock body base.

[0013] Furthermore, the front edge of the second housing is provided with an inclined surface on one side of the hook, and the hook surface on the front edge of the second housing is provided with a hook inclined surface that matches the front edge inclined surface of the second housing. The third spring assembly is disposed between the two inclined surfaces, and the two inclined surfaces enable the third spring assembly to provide an inclined force to the hook, which is in conjunction with the direction of movement of the hook body along the slope of the base.

[0014] The beneficial effects of this invention are: This invention relates to a concealed self-opening lock, installed between the cabinet frame and the cabinet door. It is discreet, with no external lock body when the door is closed, making it difficult to pry open and improving both security and aesthetics. The effective area of ​​the door has no gaps or holes, providing excellent electromagnetic shielding. It simplifies the cumbersome process of traditional key-based unlocking, improving efficiency. The lock's opening and closing process is simplified, saving time and providing convenience. The concealed structure of the lock reduces the increase in size or enclosure required by traditional locks. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of the chassis after the self-opening and locking mechanism of this invention is installed; Figure 2 This is a schematic diagram showing the corresponding positions of the lock body and the lock base of the present invention; Figure 3 This is a schematic cross-sectional view of the top surface of the chassis after the self-opening and locking mechanism of this invention is installed; Figure 4 This is a schematic diagram showing the structure when the hook contacts the moving slider when the door is closed. Figure 5This is a schematic diagram showing the structure when the hook pushes up the sliding block and enters the lock body when the door is closed. Figure 6 This is a schematic diagram showing the structure when the hook and lock body are locked when the door is closed. Figure 7 This is a schematic diagram of the structure when the hook pushes up the movable slider to disengage from the base of the lock body during unlocking. Figure 8 This is a schematic diagram showing the structure when the hook is positioned above the movable slider during unlocking. Figure 9 This is a schematic diagram of the overall structure of the lock base and hook; Figure 10 This is a schematic diagram of the overall structure of the lock base; Figure 11 This is a schematic diagram of the second housing structure of the lock seat; Figure 12 This is a schematic diagram of the hook structure; Figure 13 This is a schematic diagram of the overall structure of the lock body; Figure 14 This is a schematic diagram of the upper shell assembly structure; Figure 15 This is a schematic diagram of the upper shell structure; Figure 16 This is a schematic diagram of the lock body base structure; Figure 17 This is a schematic diagram of the movable slider structure; Figure 18 A schematic diagram of the first spring assembly and the first force-applying plate structure inside the lock body; Figure 19 This is a schematic diagram of the second spring assembly and the second force-applying plate inside the lock seat.

[0016] In the diagram: 1 is the cabinet body, 2 is the cabinet door, 3 is the lock body, 3-1 is the first shell, 3-1-1 is the upper shell, 3-1-2 is the lower shell, 3-1-3 is the inclined surface of the lower shell, 3-1-4 is the first platform, 3-2 is the first spring assembly, 3-3 is the first force plate, 3-4 is the first guide post, 3-5 is the second guide post, 3-6 is the sliding slider guide rail, 3-7 is the sliding slider, 3-7-1 is the sliding slider groove, 3-7-2 is the operating hole, 3-7-3 is the slider protrusion, 3-7-3-1 is the lower arc edge of the slider protrusion, 3-7-3-2 ... 3-7-3-3 is the upper arc edge of the slider protrusion, 3-8 is the slider protrusion to the protrusion point, 3-8 is the lock body base, 3-8-1 is the base slope, 4 is the lock seat, 4-1 is the second shell, 4-2 is the back plate of the second shell, 4-3 is the front edge of the second shell, 4-4 is the side plate of the second shell, 4-5 is the hook guide groove, 4-6 is the second spring assembly, 4-7 is the second force plate, 4-8 is the third spring assembly, 4-9 is the bottom plate of the second shell, 5 is the hook, 5-1 is the hook body plane, 5-2 is the hook hook body, 5-3 is the hook inclined surface, and 5-4 is the hook slider. Detailed Implementation

[0017] To better explain and facilitate understanding of the present invention, a detailed description of the invention is provided below with reference to the accompanying drawings and specific embodiments. In this document, directional terms such as "upper" and "lower" are used interchangeably with other directional terms. Figure 4-8 The orientation is used as a reference.

[0018] This invention provides a covert self-opening interlocking mechanism for movement, such as... Figure 1-3 As shown, the lock includes a lock body 3 mounted on the cabinet 1, a lock seat 4 mounted on the cabinet door 2, and a hook 5. Specifically, the lock body 3 is installed on the side of the cabinet 1 frame facing the cabinet door 2, and the lock seat 4 is installed on the side of the cabinet door 2 facing the cabinet 1. This concealed self-opening lock is installed between the door frame of the cabinet 1 and the cabinet door 2, providing concealment. After the cabinet door 2 is closed, there is no external lock body, making it difficult to pry open, thus improving security and aesthetics. The effective area of ​​the door has no gaps or holes, providing extremely strong electromagnetic shielding performance. It simplifies the cumbersome process of unlocking with a key, improving efficiency. It simplifies the opening and closing process of the lock, saving time and providing convenience. The concealed structure of the lock reduces the increase in size or chassis required by traditional locks.

[0019] like Figure 13-18As shown, the lock body 3 includes a first housing 3-1, a movable slider 3-7, and a lock body base 3-8. A first spring assembly 3-2 is provided on the side of the first housing 3-1 away from the lock body base 3-8. One end of the first spring assembly 3-2 is fixedly connected to the first housing 3-1, and the other end is fixedly connected to the first force plate 3-3. A movable slider 3-7 is provided below the first force plate 3-3. The movable slider 3-7 is slidably connected to the first housing 3-1. The movable slider 3-7 has a protrusion protruding towards the hook 5. The first spring assembly 3-2 provides a pushing force to the movable slider 3-7 towards the lock body base 3-8. The lock body base 3-8 has a base ramp 3-8-1 extending towards the first spring assembly 3-2. The space between the extended base ramp 3-8-1 and the first housing 3-1 at the opposite position is a space for accommodating the movable slider 3-7 and the hook body 5-2 of the hook 5.

[0020] Specifically, such as Figure 13-15 As shown, the first housing 3-1 has an upper housing 3-1-1 and a lower housing 3-1-2 that are fixedly connected or integrally formed. The upper housing 3-1 can be inverted U-shaped and has an internal receiving space. The first spring assembly 3-2 is disposed within the receiving space of the upper housing 3-1-1. One end of the first spring assembly 3-2 is fixedly connected to the inside of the receiving space of the upper housing 3-1-1, and the other end is fixedly connected to the first force-applying plate 3-3. Specifically, the first spring assembly 3-2 can be configured as three springs, which apply force evenly to the first force-applying plate 3-3, making the movement of the first force-applying plate 3-3 more uniform and stable. To ensure stable movement of the first force-applying plate 3-3, specifically, as follows... Figure 15 As shown, the upper housing 3-1-1 contains a first guide post 3-4 and a second guide post 3-5. More specifically, there are two first guide posts 3-4 and one second guide post 3-5. The two first guide posts 3-4 and one second guide post 3-5 are located on opposite sides of the first spring assembly 3-2, and the first guide posts 3-4 and the second guide post 3-5 are arranged in a triangular pattern. Figure 18 As shown, the first force-applying plate 3-3 is provided with slots that mate with the first guide post 3-4 and the second guide post 3-5. The first guide post 3-4 and the second guide post 3-5 provide guidance for the movement of the first force-applying plate 3-3, enabling the first force-applying plate 3-3 to move stably up and down under the limitation of the first guide post 3-4 and the second guide post 3-5. Preferably, the second guide post 3-5 can be a cylinder with an elliptical cross-section to accommodate more displacement of the first force-applying plate 3-3; the second guide post 3-5 can also be a cylinder with a circular cross-section.

[0021] More specifically, the upper top surface of the lower housing 3-1-2 has a first platform 3-1-4. One end of the second guide post 3-5 is fixedly connected to the inner upper top surface of the upper housing 3-1-1, and the other end is fixedly connected to the upper top surface of the first platform 3-1-4. One end of the first guide post 3-4 is fixedly connected to the inner upper top surface of the upper housing 3-1-1, and the other end is suspended. The bottom height of the first guide post 3-4 does not exceed the plane of the first platform 3-1-4. The first force plate 3-3 has a boss protruding towards the first guide post 3-4 at the slot corresponding to the first guide post 3-4. The function of this boss is to connect upward to the lower part of the first guide post 3-4 to prevent the first guide post 3-4 from being too long and blocking the upward travel path of the hook.

[0022] The side of the lower housing 3-1-2 closest to the movable slider 3-7 is a lower housing slope 3-1-3, which is inclined upwards from bottom to top towards the hook 5. The bottom of the first housing 3-1 is fixedly connected to the lock body base 3-8. A movable slider guide rail 3-6 is provided on the lower housing slope 3-1-3. Specifically, the movable slider guide rail 3-6 can be two parallel inclined cylindrical guide rails, the cross-section of which can be circular or elliptical. The top surface of the inclined cylindrical guide rail is flush with the first platform 3-1-4, and the bottom surface is flush with the lower housing 3-1-2. The top surface of the inclined cylindrical guide rail and the top surface of the first platform 3-1-4 provide a bearing platform for the first force-applying plate 3-3.

[0023] The bottom of the lower housing 3-1-2 is fixedly connected to the lock body base 3-8, such as Figure 16 As shown, the lock body base 3-8 has a base ramp 3-8-1 extending toward the first spring assembly 3-2, and there is a space between the extended base ramp 3-8-1 and the first housing 3-1 in the opposite position to accommodate the movable slider 3-7 and the hook body 5-2 of the hook 5.

[0024] Specifically, such as Figure 17As shown, the movable slider 3-7 has a movable slider groove 3-7-1 matching the movable slider guide rail 3-6 on the side near the inclined surface 3-1-3 of the lower housing, allowing the movable slider 3-7 to move obliquely along the movable slider guide rail 3-6. The movable slider 3-7 has a slider protrusion 3-7-3 protruding towards the hook 5 on the side facing the hook 5. The width of the slider protrusion 3-7-3 is the same as the width of the movable slider 3-7. The upper and lower edges of the movable slider 3-7 are the upper arc edge 3-7-3-2 and the lower arc edge 3-7-3-1 of the slider protrusion, respectively. The area between the upper arc edge 3-7-3-2 and the lower arc edge 3-7-3-1 of the slider protrusion is the point from the slider protrusion to the protrusion 3-7-3-3. The base ramp 3-8-1 is set parallel to the lower shell ramp 3-1-3. The height of its top end matches the height of the plane where the middle part of the lower arc edge 3-7-3-1 of the slider protrusion is located when the slider 3-7 moves along the slider guide rail 3-6 to the lowest point. The slider protrusion 3-7-3 extends towards the hook 5 from the longitudinal position of the protrusion 3-7-3-3. There is a space for the hook 5 hook body 5-2 between the base ramp 3-8-1 and the lower part of the slider protrusion 3-7-3.

[0025] Specifically, after the hook 5 is fully locked to the lock body 3, a gap remains between the cabinet door 2 and the cabinet body 1. This gap matches the distance the hook 5 travels along the sliding slider 3-7 from the bottom of the protrusion, over the protrusion to the top, and then to the bottom of the protrusion. To unlock, the door 2 is pushed towards the cabinet body 1 from its closed position. The hook 5 travels along the sliding slider 3-7 from the bottom of the protrusion, over the protrusion to the top, and then to the top of the protrusion. The hook 5 then disengages from the lock body 3, completing the unlocking process.

[0026] More specifically, such as Figure 17 As shown, the movable slider 3-7 has an operation hole 3-7-2, which facilitates adjustment when the movable slider 3-7 stops moving along the movable slider guide rail 3-6.

[0027] like Figure 9-12As shown, the lock base 4 includes a second housing 4-1. The end of the hook 5 away from the hook body 5-2 is disposed inside the second housing 4-1 and is slidably connected to the second housing 4-1. The second housing 4-1 is provided with a second spring group 4-6 and a third spring group 4-8. One end of the second spring group 4-6 and the third spring group 4-8 is fixedly connected to the inner wall of the second housing 4-1, and the other end is connected to the hook 5. The second spring group 4-6 provides a thrust for the hook 5 to move in the direction of the lock body 3, and the third spring group 4-8 provides a thrust for the hook 5 to move away from the lock body 3. As the cabinet door 2 moves toward the cabinet body 1, the hook 5 moves toward the lock body 3 along with the cabinet door. The hook 5 moves along the outer side of the base slope 3-8-1. The hook body 5-2 pushes up the movable slider 3-7 and enters the inner wall of the base slope 3-8-1 under the force of the second spring group 4-6 and the third spring group 4-8. The first spring group 3-2 applies force to the movable slider 3-7, causing the movable slider 3-7 to move toward the hook body 5-2 and press the hook body 5-2 to complete the locking. The cabinet door 2 continues to move toward the cabinet body 1 under force. The hook body 5-2 abuts against the movable slider 3-7 and moves upward, causing the hook body 5-2 to separate from the inner wall of the base slope 3-8-1. It continues to apply force to the cabinet door 2, causing the hook body 5-2 to flip over the protrusion of the movable slider 3-7, thus separating the hook 5 from the lock body 3.

[0028] Specifically, such as Figure 9-11 As shown, the second housing 4-1 of the lock base 4 is a box structure with an open top and front. Its bottom is the second housing bottom plate 4-9, its back is the second housing back plate 4-2, and its sides are the second housing side plates 4-4. One end of the second spring assembly 4-6 is fixedly connected to the second housing back plate 4-2, and the other end is fixedly connected to the second force-applying plate 4-7. The second force-applying plate 4-7 abuts against or is fixedly connected to the back of the hook body plane 5-1 of the hook 5. The bottom front end of the second housing 4-1 is the second housing front edge 4-3. A third spring assembly 4-8 is provided on the side of the second housing front edge 4-3 facing the hook 5, and the other end of the third spring assembly 4-8 is fixedly connected to the hook 5. Preferably, as shown... Figure 19As shown, both the second spring group 4-6 and the third spring group 4-8 have three springs in each group to ensure even force application to the hook 5. The second spring group 4-6 provides a lateral thrust to the hook 5 in the direction of the lock body 3, while the third spring group 4-8 provides a lateral thrust away from the lock body 3 and an upward thrust. More specifically, the side of the second housing front edge 4-3 facing the hook 5 has an inclined surface, and the side of the hook 5 facing the second housing front edge 4-3 has a hook inclined surface 5-3 that matches the inclined surface of the second housing front edge 4-3. The third spring group 4-8 is positioned between the two inclined surfaces, which allow the third spring group 4-8 to provide an oblique force to the hook 5. This force is coordinated with the hook body 5-2 of the hook 5 moving along the base slope 3-8-1, allowing the hook 5 to move more effectively in coordination with the base slope 3-8-1.

[0029] Specifically, a hook guide groove 4-5 is provided on the inner side of the second housing 4-1 side wall, i.e., the second housing side plate 4-4, of the lock base 4. A hook slider 5-4 is provided at a corresponding position on the side wall of the hook 5. The hook 5 moves within the hook guide groove 4-5 via the hook slider 5-4. The hook guide groove 4-5 and the hook slider 5-4 are inclined, and this inclination angle matches the inclination angle of the base slope 3-8-1 of the lock body base 3-8. Preferably, the hook slider 5-4 can be a protruding column with an elliptical cross-section.

[0030] The working process of the concealed self-opening and locking mechanism of the present invention is as follows: During the process of closing the cabinet door 2 of the cabinet 1, the cabinet door 2 rotates around the door hinge and moves closer to the cabinet 1. The lock seat 4 follows the cabinet door 2 and moves closer to the door frame of the cabinet 1. When the lock seat 4 contacts the lock body 3, the hook body 5-2 of the hook 5 first moves along the base slope 3-8-1 towards the moving slider 3-7. Then, the hook body 5-2 of the hook 5 lifts the moving slider 3-7, causing the moving slider 3-7 to move diagonally upward along the moving slide rail 3-6. The top of the moving slider 3-7 lifts the first force plate 3-3. Under the action of the second spring group 4-6, the third spring group 4-8, and the first spring assembly 3-2, the hook body 5-2 enters the space between the inner side of the base slope 3-8-1 and the bottom of the moving slider 3-7. As the cabinet door 2 continues to move closer to the cabinet 1, the front end of the hook body 5-2 of the hook 5 is completely inside the space between the inner side of the base slope 3-8-1 and the bottom of the moving slider 3-7, i.e., the locked state. During this process, the second spring assembly 4-6, the third spring assembly 4-8, and the force of the person pushing the door all exert force on the hook body 5-2 of the hook 5 to enter the space between the inner side of the base slope 3-8-1 and the bottom of the movable slider 3-7. At the same time, the first spring assembly 3-2 presses the movable slider 3-7 downward through the first force plate 3-3, thereby causing the movable slider 3-7 to exert force on the hook body 5-2 of the hook 5 in a downward direction. Combining the forces from the above four directions, the hook body 5-2 of the hook 5 smoothly enters the space between the inner side of the base slope 3-8-1 and the bottom of the movable slider 3-7, thus achieving locking.

[0031] When cabinet door 2 needs to be opened, simply push cabinet door 2 towards cabinet body 1 around the door hinge. This causes the hook body 5-2 of hook 5 to push upwards, moving slider 3-7. The top of hook body 5-2 moves along the lower arc edge 3-7-3-1 of the slider protrusion towards the slider protrusion point 3-7-3-3. With the force of the push, hook body 5-2 flips over the slider protrusion point 3-7-3-1 along the lower arc edge 3-7-3-1. Then, hook 5 is reset by the restoring force of the second spring group 4-6 and the third spring group 4-8. After flipping over the slider protrusion point 3-7-3-3, hook body 5-2 moves towards the upper arc edge 3-7-3-2 of the slider protrusion. The first spring assembly 3-2 pushes slider 3-7 downwards via the first force plate 3-3. 7. Driven by the first spring assembly 3-2, its own weight, and the restoring force of the spring assembly inside the lock seat 4, the hook 5 moves obliquely downward along the sliding slider guide rail 3-6. The lower arc edge 3-7-3-1 of the slider protrusion covers the base slope 3-8-1, preventing the hook from entering the space between the inner side of the base slope 3-8-1 and the bottom of the sliding slider 3-7 during this door opening process. That is, the lock cannot lock a second time. Then, the cabinet door 2 is pulled outward to disengage the hook 5 from the lock body 3, completing the unlocking and opening process.

[0032] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any modifications, alterations, substitutions, and variations made by those skilled in the art to the above embodiments are within the scope of the present invention.

Claims

1. A concealed self-opening lock, comprising a lock body (3) mounted on a cabinet (1), a lock seat (4) mounted on a cabinet door (2), and a hook (5), characterized in that: The lock body (3) includes a first housing (3-1), a movable slider (3-7), and a lock body base (3-8). A first spring assembly (3-2) is provided on the side of the first housing (3-1) away from the lock body base (3-8). One end of the first spring assembly (3-2) is fixedly connected to the first housing (3-1), and the other end is fixedly connected to a first force plate (3-3). A movable slider (3-7) is provided below the first force plate (3-3). The movable slider (3-7) is slidably connected to the first housing (3-1). The movable slider (3-7) has a protrusion protruding towards the hook (5). The first spring assembly (3-2) is... The movable slider (3-7) provides a thrust toward the lock body base (3-8), which has a base ramp (3-8-1) extending toward the first spring assembly (3-2). Between the extended base ramp (3-8-1) and the opposing first housing (3-1) is a space for accommodating the movable slider (3-7) and the hook body (5-2) of the hook (5). The lock seat (4) includes a second housing (4-1), with one end of the hook (5) away from the hook body (5-2) disposed within the second housing (4-1) and slidably connected to it. A second spring is provided within the second housing (4-1). The first spring group (4-6) and the second spring group (4-8) are fixedly connected at one end to the inner wall of the second housing (4-1), and at the other end to the hook (5). The second spring group (4-6) provides the hook (5) with a thrust to move towards the lock body (3), and the third spring group (4-8) provides the hook (5) with a thrust to move away from the lock body (3). When the cabinet door (2) moves towards the cabinet body (1), the hook (5) moves towards the lock body (3) along with the cabinet door. The hook (5) moves along the outer side of the base slope (3-8-1), and the hook body (5-2) lifts up and moves away. After the movable slider (3-7) enters the inner wall of the base slope (3-8-1), the first spring assembly (3-2) applies force to the movable slider (3-7), causing the movable slider (3-7) to move towards the hook body (5-2) and press against the hook body (5-2) to complete the locking; the cabinet door (2) continues to move towards the cabinet body (1) under force, and the hook body (5-2) abuts against the movable slider (3-7) and moves upward, causing the hook body (5-2) to separate from the inner wall of the base slope (3-8-1), and continues to apply force to the cabinet door (2), causing the hook body (5-2) to flip over the protrusion of the movable slider (3-7), realizing the separation of the hook (5) from the lock body (3).

2. The concealed self-opening interlocking system according to claim 1, characterized in that: The lock body (3) is installed on the side of the cabinet frame (1) facing the cabinet door (2), and the lock seat (4) is installed on the side of the cabinet door (2) facing the cabinet body (1).

3. The concealed self-opening interlocking system according to claim 1, characterized in that: After the hook (5) and the lock body (3) are fully locked, there is a gap between the cabinet door (2) and the cabinet body (1). This gap matches the distance that the hook (5) moves from the bottom of the protrusion to the top of the protrusion along the sliding slider (3-7) from the bottom of the protrusion to the top of the protrusion.

4. The concealed self-opening interlocking system according to claim 1, characterized in that: The first housing (3-1) has an upper housing (3-1-1) and a lower housing (3-1-2). The upper housing (3-1-1) has an internal accommodating space. The first spring assembly (3-2) is located in the accommodating space of the upper housing (3-1-1). The side of the lower housing (3-1-2) near the movable slider (3-7) is a lower housing inclined surface (3-1-3). A movable slider guide rail (3-6) is provided on the lower housing inclined surface (3-1-3). A movable slider groove (3-7-1) matching the movable slider guide rail (3-6) is provided on the side of the movable slider (3-7) near the lower housing inclined surface (3-1-3), so that the movable slider (3-7) moves obliquely along the movable slider guide rail (3-6).

5. A concealed self-opening interlocking system according to claim 4, characterized in that: The upper housing (3-1-1) has a first guide post (3-4) and a second guide post (3-5) in its accommodating space. The first force plate (3-3) has a slot that fits with the first guide post (3-4) and the second guide post (3-5). The first guide post (3-4) and the second guide post (3-5) provide guidance for the movement of the first force plate (3-3).

6. A concealed self-opening interlocking system according to claim 5, characterized in that: There are two first guide posts (3-4) and one second guide post (3-5). The first guide posts (3-4) and the second guide posts (3-5) are located on opposite sides of the first spring assembly (3-2) and are arranged in a triangular pattern.

7. A concealed self-opening interlocking system according to claim 1 or 4, characterized in that: An operating hole (3-7-2) is provided on the movable slider (3-7).

8. A concealed self-opening interlocking system according to claim 1, characterized in that: The second housing (4-1) of the lock base (4) is a box structure with an open top and front. One end of the second spring assembly (4-6) is fixedly connected to the back plate of the second housing (4-1), and the other end is fixedly connected to the second force plate (4-7). The second force plate (4-7) abuts or is fixedly connected to the back of the hook body plane (5-1) of the hook (5). The bottom of the front end of the second housing (4-1) is the front edge (4-3) of the second housing. The front edge (4-3) of the second housing is provided with a third spring assembly (4-8) on the side of the hook (5) facing the front edge (4-3). The other end of the third spring assembly (4-8) is fixedly connected to the hook (5).

9. A concealed self-opening interlocking system according to claim 8, characterized in that: The second housing (4-1) of the lock base (4) has a hook guide groove (4-5) on the inner side of its side wall, and a hook slider (5-4) is provided at the corresponding position on the side wall of the hook (5). The hook guide groove (4-5) and the hook slider (5-4) are inclined, and the inclination angle matches the inclination angle of the base slope (3-8-1) of the lock body base (3-8).

10. A concealed self-opening interlocking system according to claim 8 or 9, characterized in that: The front edge (4-3) of the second housing has an inclined surface on one side facing the hook (5). The hook (5) has a hook inclined surface (5-3) on one side facing the front edge (4-3) of the second housing that matches the inclined surface of the front edge (4-3). The third spring assembly (4-8) is arranged between the two inclined surfaces. The two inclined surfaces enable the third spring assembly (4-8) to provide an oblique force to the hook (5). This force is coordinated with the hook body (5-2) of the hook (5) moving along the slope (3-8-1) of the base.

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