Hidden buckle lock suitable for double-door low cabinet

Abstract

The utility model provides a hidden buckle lock suitable for a double-door low cabinet, which is applied to the technical field of furniture lockset accessories and comprises a lock body and a spring bolt which are respectively arranged on a cabinet body and a cabinet door and are used for realizing a locking function, and the lock body is mounted in a first cavity in a top plate or a bottom plate on one side, close to the cabinet door, of the cabinet body; the outer surface of a top plate or a bottom plate of the cabinet body is not protruded; a lock body opening is formed in the edge of one side of the lock body close to the cabinet door; the lock tongue is installed at the position, corresponding to the opening of the lock body, of the cabinet door and used for being matched with the lock body, through hidden installation of the lock body, when the cabinet door is closed, the lock tongue is inserted into the opening of the lock body to complete locking, the lock body is still hidden in the cabinet body, and the appearance of the cabinet door cannot be affected. By means of the design, attractiveness and safety of the cabinet door are improved, certain flexibility and universality are achieved, and different locking requirements can be met by adjusting the positions of the lock body and the lock tongue.

Description

Technical Field

[0001] The present application relates to the technical field of furniture lock accessories, and in particular to a concealed snap lock suitable for a double-door low cabinet. Background Art

[0002] In existing furniture designs, especially some double-door storage cabinets, locks are required to ensure that the cabinet doors are tightly closed to prevent items inside the cabinet from being easily accessed. For example, commonly used tools, medicines, and fragile items that need to be stored away from children are required to be kept away from children. At the same time, the height of such cabinets is relatively short, generally not higher than the height of an adult, otherwise it is inconvenient to store and access items on a daily basis. Therefore, the safety, aesthetics, and ease of use of locks used in such double-door cabinets have always been the focus of attention of designers and users.

[0003] Traditional external locks are usually exposed on the surface of the cabinet and are large in size, which not only affects the overall aesthetics but also takes up storage space inside the cabinet. This is especially true in furniture that pursues a simple, modern design style. Aluminum-framed glass cabinet doors are often used, and the cabinet interior is visible through the cabinet doors, making these external locks appear even more obtrusive. Some traditional locks require additional keys or tools when used, which brings inconvenience to users and keys are easy to lose. At the same time, traditional locks may produce noise during the process of opening and closing the door, affecting the user experience. In addition, these locks have certain requirements for the installation location and the cabinet and door structure, which limits the flexibility of installation. They cannot be applied to various types of cabinets and doors, and are not suitable for large-scale popularization.

[0004] Therefore, the existing technology is in urgent need of improvement. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings, the present application proposes a concealed snap lock suitable for a double-door low cabinet. Through clever design, the lock body is hidden inside the top or bottom plate of the cabinet, achieving the effect of being invisible after the door is closed, while ensuring convenience and safety of use.

[0006] The present application provides a concealed snap lock suitable for a double-door low cabinet, comprising a lock body and a lock tongue, respectively provided on the cabinet body and the cabinet door for achieving a locking function, and further comprising:

[0007] The lock body is installed in a first cavity inside the top plate or bottom plate of the cabinet body near the cabinet door, and does not protrude from the outer surface of the top plate or bottom plate of the cabinet body;

[0008] The edge of the lock body close to the cabinet door is provided with a lock body opening;

[0009] The lock tongue is installed on the cabinet door at a position corresponding to the lock body opening, and is used to cooperate with the lock body.

[0010] This design effectively addresses the aesthetic issues associated with traditional external locks by completely concealing the lock body within the cabinet's top or bottom panel. Furthermore, since the lock body no longer protrudes from the cabinet surface, it increases the practical space within the cabinet. The precise fit between the lock body opening and the lock tongue ensures reliable locking and enhances cabinet security. Furthermore, the lock body is protected within the cabinet, making it less susceptible to external factors such as dust and impact, significantly improving the lock's durability.

[0011] Furthermore, the present application also proposes that a lock buckle is provided at the front of the lock body near the lock body opening, which is used to lock the lock tongue when the cabinet door is closed.

[0012] This design cleverly solves the problem of how to lock the lock tongue when the cabinet door is closed by adding a lock catch structure to the front of the lock body. The lock catch is set close to the lock body opening, ensuring that the lock catch can promptly contact the lock tongue entering the lock body opening, and the lock body opening is larger than the position required for the lock tongue to enter and exit. When the cabinet door is adjusted, the lock tongue can still be locked normally. The cabinet door hinge hardware has a three-dimensional adjustment function, so that when the ground at the cabinet installation location is uneven, the cabinet door can be adjusted to balance the gap and flatness between the door panels, ensuring a beautiful appearance, balanced gaps and normal opening of the door leaf. When the cabinet door is closed, the lock tongue naturally enters the lock body opening, and the lock catch immediately locks the lock tongue, achieving reliable locking of the cabinet door.

[0013] Furthermore, the present application also proposes that the lock body also includes a snap button, which is flush with the top plate or bottom plate of the cabinet, and the lock button is pushed to move by pressing the snap button to unlock the lock tongue.

[0014] This design is not only simple and intuitive to operate, but also requires no additional keys or tools, significantly improving ease of use. Furthermore, the snap lock is flush with the cabinet body, maintaining a consistent and aesthetically pleasing appearance. This concealed design prevents the lock body from protruding from the cabinet surface, avoiding the awkward or incongruous appearance associated with traditional locks. Furthermore, this design enhances security. Because the lock body is concealed within the cabinet and the operating mechanism is flush with the exterior, it is difficult for unauthorized individuals to detect the lock's presence, thereby improving theft resistance.

[0015] Furthermore, the present application also proposes that a groove is provided on the bottom surface of the snap button close to the lock body opening, and the groove is used to sense the pressing position when touched.

[0016] The groove on the underside of the snap solves the problem of users having difficulty accurately locating the pressing position. When the user touches the groove, they immediately know that this is the correct pressing position, allowing accurate operation without visual assistance. This design not only improves convenience and accuracy, but also maintains the concealed nature of the hidden snap lock. The presence of the groove does not affect the appearance of the lock body, but it significantly improves the user experience.

[0017] Furthermore, the present application also proposes that the lock body also includes mounting screws for mounting the lock body inside the top plate or bottom plate of the cabinet.

[0018] The lock body is installed on the top plate or bottom plate of the cabinet by using fixing screws, which achieves a stable installation of the lock body and ensures the concealment of the lock body.

[0019] Furthermore, the present application also proposes that the lock body further includes a cover plate fixing screw for fixing the cover plate to the top of the lock body;

[0020] A spring is provided at the connection between the cover plate and the lock catch, and the spring is used to automatically rebound the lock catch so that the lock catch locks the lock tongue.

[0021] When the lock catch is unlocked or moved, the spring automatically pushes the lock catch back to its original position, causing it to re-lock the lock tongue or automatically return to its original position after unlocking. This automatic rebound mechanism ensures that the lock catch can lock the lock tongue promptly and reliably, improving the efficiency and safety of locking and further enhancing the concealment of the hidden lock.

[0022] Furthermore, the present application also proposes that the lock body also includes a shell, and the front and bottom of the shell are provided with protruding edges for covering the openings and gaps in the top plate or bottom plate of the cabinet.

[0023] The protruding edge of the lock housing cleverly conceals the gap created by installing the lock body in the cabinet's top or bottom panel. This design not only enhances the aesthetics of the lock body during installation but also enhances its concealment. The protruding edge fits snugly against the cabinet's top or bottom panel, visually eliminating any signs of installation and blending the lock body more seamlessly into the cabinet. This design ensures both functionality and a harmonious overall appearance, effectively enhancing the product's quality and class.

[0024] Furthermore, the present application also proposes that the lock body further comprises a pin, which is arranged in the lock body across the snap button so as to embed the snap button in the bottom of the lock body and enable the snap button to rotate around the pin.

[0025] This design ensures secure installation and flexible operation of the snap. The snap is embedded in the bottom of the lock body via a pin, ensuring a secure connection between the snap and the lock body, preventing it from loosening or falling off, and improving the stability and durability of the entire lock structure. Furthermore, the pin design allows the snap to rotate around its axis within a certain space, ensuring flexibility and allowing the user to easily press and unlock the lock.

[0026] Furthermore, the present application also proposes that the lock body also includes a torsion spring, and the torsion spring is sleeved on the pin.

[0027] Furthermore, the present application also proposes that the torsion spring is used to rebound the snap button so that the snap button automatically returns to its position flush with the bottom of the lock body.

[0028] A torsion spring is mounted on a pin and connected to the snap. When the snap is pressed, the torsion spring is compressed or twisted. When the pressure is released, the torsion spring releases its stored energy, pushing the snap back to its original position, flush with the bottom of the lock body. This design cleverly solves the problem of snap return. By leveraging the elastic properties of the torsion spring, the snap returns automatically, eliminating the need for manual adjustment. This not only improves the user experience but also ensures the consistency and aesthetics of the lock body.

[0029] Beneficial effect: The present application provides a concealed snap lock suitable for a double-door low cabinet, comprising a lock body installed in a first cavity inside the top plate or bottom plate of the cabinet close to the cabinet door, and does not protrude from the outer surface of the top plate or bottom plate of the cabinet; a lock body opening is provided at the edge of the lock body close to the cabinet door; a lock tongue is installed on the cabinet door at a position corresponding to the lock body opening, and is used to cooperate with the lock body. By installing the lock body in the cavity inside the top plate or bottom plate of the cabinet, the lock body does not protrude from the surface of the cabinet, and the snap button is designed to be flush with the top plate or bottom plate of the cabinet, which solves the problem of traditional external locks affecting appearance and occupying space, and has the advantages of good appearance, flexible installation, convenient use and strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of a concealed snap lock suitable for a double-door low cabinet provided in this application.

[0031] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0032] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0033] Figure 4 This is a schematic structural diagram of a concealed snap lock suitable for a double-door low cabinet provided in this application.

[0034] Figure 5 This is a schematic diagram of the disassembled structure of a concealed snap lock suitable for a double-door low cabinet provided in this application.

[0035] Figure 6 This is a bottom perspective diagram of a concealed snap lock suitable for a double-door low cabinet provided in this application.

[0036] Figure 7 A schematic diagram of unlocking a concealed snap lock suitable for a double-door low cabinet provided in this application.

[0037] In the figure: 1. Mounting screws; 2. Cover fixing screws; 3. Cover; 4. Spring; 5. Lock catch; 6. Housing; 7. Pin; 8. Torsion spring; 9. Snap button; 10. Lock tongue; 11. Groove; 12. Lock body opening; 13. Cabinet door. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work fall within the scope of protection of the present application.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0040] Lock selection and installation are currently a crucial consideration in modern furniture design, especially for low double-door cabinets. While traditional external locks provide basic locking functionality, their exposed design often detracts from the overall aesthetic of the furniture, appearing particularly obtrusive in furniture designed for a minimalist, modern style. Furthermore, external locks take up space within the cabinet, reducing available storage space. In practice, traditional locks present several inconveniences. For example, many traditional locks require additional keys or tools to operate, which not only complicates use but also creates the risk of key loss. Furthermore, traditional locks can generate noise when opening and closing the door, impacting the user experience. More importantly, these locks have specific requirements for installation location and cabinet structure, limiting their installation flexibility and making them unsuitable for a wide range of cabinet and door types.

[0041] Please refer to Figure 1 In order to solve this problem, the present application proposes a concealed snap lock suitable for a double-door low cabinet, comprising a lock body and a lock tongue 10 respectively provided on the cabinet body and the cabinet door 13 for realizing the locking function, and further comprising:

[0042] The lock body is installed in a first cavity inside the top plate or bottom plate of the cabinet near the cabinet door 13, and does not protrude from the outer surface of the top plate or bottom plate of the cabinet. This design installs the lock body by setting a first cavity inside the top plate or bottom plate of the cabinet, so that the lock body does not protrude from the outer surface of the cabinet, thereby achieving the concealment of the lock and improving the aesthetics of the cabinet. In actual application, the design of the first cavity can have various forms, which can be a completely enclosed space or a semi-open groove structure. The size and shape of the cavity need to be determined according to the specific size and structure of the lock body to ensure that the lock body can be completely hidden inside while being easy to install and maintain.

[0043] A lock body opening 12 is provided on the edge of the lock body near the cabinet door 13, and a lock tongue 10 is installed on the cabinet door 13 at a position corresponding to the lock body opening 12 for cooperating with the lock body. The lock body opening 12 provided on the lock body near the cabinet door 13 corresponds to the lock tongue 10 installed on the cabinet door 13, forming a concealed locking mechanism. This design effectively solves the problem of traditional external locks affecting the aesthetics by completely hiding the lock body inside the top plate or bottom plate of the cabinet. At the same time, since the lock body no longer protrudes from the surface of the cabinet, the practical space inside the cabinet is also increased. Moreover, the lock body opening 12 is larger than the position required for the lock tongue 10 to enter and exit. When the cabinet door 13 is adjusted, the lock tongue 10 can still be locked normally. In addition, the lock body is protected inside the cabinet and is not easily affected by external factors such as dust and collisions, which greatly improves the durability of the lock. The cabinet door 13 hinge hardware has a three-dimensional adjustment function, so that when the ground where the cabinet is installed is not level, the cabinet door 13 can be adjusted to balance the gap and flatness between each door panel to ensure beautiful appearance, balanced gap and normal opening of the door leaf.

[0044] Traditional external locks usually form obvious protrusions on the surface of the cabinet, which not only affects the appearance but is also easily damaged by collisions. However, the present application completely avoids these problems through the ingenious design of hiding the hidden buckle lock inside the cabinet. At the same time, traditional locks often require keys or specific tools to operate, which are inconvenient to use and easy to lose. The present application can be unlocked through a simple press operation, greatly improving the convenience of use. In addition, the present application avoids damage to the cabinet structure by reserving a cavity inside the cabinet, and also simplifies the installation process. This design also has strong versatility and can be applied to double-door low cabinets of various types and sizes, which increases the scope of application of the product. The concealed hidden buckle lock design of the present application not only solves the problems of aesthetics and space utilization, but also has significant improvements in safety, durability and ease of use, providing an innovative solution for the lock design of double-door low cabinets.

[0045] Please refer to Figures 2 to 3 The lock body and the lock tongue 10 are respectively installed in the top plate or bottom plate of the cabinet and on the cabinet door 13 for use together. Specifically, Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle shows that, as one embodiment, the lock body of the concealed lock can be installed inside the top plate of the cabinet. Figure 3 for Figure 1 In the enlarged schematic diagram at B in the middle, the lock tongue 10 of the hidden lock can be installed at the upper corner of the cabinet door 13 handle, with the lock tongue 10 facing the interior of the cabinet. In some specific embodiments, the hidden lock is only installed on one side of the door for use. For example, the hidden lock is installed on the left door of a low cabinet. The left door is locked by the hidden lock. After the right door is closed, the locked left door is locked by the cam lock installed on the right door. At this time, both doors are locked. The hidden lock must be unlocked through the space opened by the right door to press the button of the hidden lock. The hidden lock is at the upper end of the left door handle. Of course, the right door can also be left unlocked, and only the left door can be locked with the hidden lock. However, if both cabinet doors need to be locked, a cam lock or other lock device needs to be installed on the right door. The locking positions of the left and right doors are not fixed, and the hidden lock can also be installed on the right door.

[0046] In actual use, the height of the cabinet door 13 should not be higher than the height of the human body. If the door is too high, the installation position of the hidden lock body will also be raised, making it inconvenient to open the door and unlock it. Therefore, it is recommended that the door leaf of the hidden lock should not be too high to avoid affecting the use effect. In addition, the lock body of the hidden lock can be installed on the top or bottom plate of the cabinet. Preferably, it can be installed inside the top plate of the cabinet. In this way, it is not conspicuous from the viewing angle and is unobstructed during use. If the hidden lock is also installed on the bottom plate of the cabinet, there will be two locking points, which will cause trouble in unlocking. The two points need to be unlocked separately. In addition, the top surface of the bottom plate is the daily use surface of the cabinet. If the hidden lock is installed in this position, it will cause the need to deliberately leave a position for pressing the button 9 when placing items, occupying the storage space inside the cabinet. Moreover, if the cabinet door is made of glass, the hidden lock will be directly visible through the glass door. Since people's viewing angle is generally downward, installing the hidden lock on the bottom plate will not meet the design requirements for practicality and aesthetics. Users can install the lock body of the hidden lock on the top or bottom plate of the cabinet according to actual needs. Because the lock body of the hidden lock needs to be installed inside the top plate or bottom plate, and the position required for the lock buckle 5 to rise when unlocking and the position for fixing the hidden lock need to be reserved, the thickness of the top plate or bottom plate that cooperates with the hidden lock needs to be 25 mm or more.

[0047] Furthermore, the concealed snap lock suitable for a double-door low cabinet further includes a lock buckle 5 provided at the front of the lock body near the lock body opening 12, which is used to lock the lock tongue 10 when the cabinet door 13 is closed.

[0048] When the cabinet door 13 is closed, the lock tongue 10 enters the lock body opening 12, and the lock catch 5 contacts and locks the lock tongue 10, completing the locking function of the cabinet door 13. The lock catch 5 is positioned close to the lock body opening 12, ensuring that the lock catch 5 can promptly contact the lock tongue 10 once it enters the lock body opening 12. This simple and effective structure completes the locking process without requiring additional steps, improving user convenience. Furthermore, since the lock catch 5 is concealed within the lock body, the overall appearance is aesthetically pleasing and safe.

[0049] In actual use, the lock catch 5 can be designed in various forms to achieve the function of locking the lock tongue 10. For example, the lock catch 5 can be designed as an elastic snap-on structure. When the lock tongue 10 enters the lock body opening 12, the lock catch 5 automatically pops up and clamps the lock tongue 10. Another possible implementation method is to use a magnetic lock catch 5 to lock the lock tongue 10 through magnetic attraction. The positional relationship between the lock catch 5 and the lock body opening 12 is crucial. Usually, the lock catch 5 is set on the inner edge of the lock body opening 12 to ensure that the lock tongue 10 is locked as soon as it enters. The size and shape of the lock catch 5 need to match the lock tongue 10 to achieve a precise lock. For example, for a common rectangular lock tongue, the lock catch 5 can be designed as a U-shaped structure that can clamp the lock tongue from both sides. The material of the lock catch 5 is usually high-strength plastic to ensure the required strength of the lock catch 5, ensure long-term reliability, and avoid noise and surface wear when in contact with the lock tongue 10. In a specific embodiment, the color of the lock catch 5 is black to ensure its overall aesthetics. Furthermore, in order to further improve the reliability of the lock, anti-slip lines can be added to the contact surface of the lock buckle 5 and the lock tongue 10. These lines can be designed in a cross-line shape, which can increase friction and prevent the lock tongue 10 from sliding out when subjected to force.

[0050] The lock catch 5 of the present application is designed in coordination with the first cavity, the lock body and the lock tongue 10 to form a complete locking system. Traditional external locks usually require keys or other tools to operate, while the design of the present application achieves automatic locking, which greatly simplifies the use process. The user does not need additional keys or tools to lock and open the cabinet door 13. At the same time, since the lock catch 5 is hidden inside the lock body, it not only improves security but also maintains the beautiful appearance of the cabinet. This built-in design increases security and makes the lock less likely to be damaged by external forces. In addition, the design of the present application has a wider applicability and can be easily applied to various types of double-door low cabinets without being restricted by the cabinet structure. These advantages make the design of the present application surpass the existing technology in terms of practicality, safety and aesthetics.

[0051] Among them, in actual application, this is a concealed hidden lock suitable for a double-door low cabinet. The lock body also includes a snap button 9, which is flush with the top plate or bottom plate of the cabinet. By pressing the snap button 9, the lock button 5 is pushed to move to unlock the lock tongue 10.

[0052] By providing a snap button 9 on the lock body and making the snap button 9 flush with the top or bottom plate of the cabinet, a convenient unlocking operation of the concealed hidden lock is achieved. The design of the snap button 9 cleverly solves the problem of unlocking operation. When the cabinet door 13 needs to be opened, the user only needs to press the snap button 9 to push the lock button 5 to move, thereby unlocking the lock tongue 10. This design is not only simple and intuitive to operate, but also does not require additional keys or tools, greatly improving the convenience of use. At the same time, the design of the snap button 9 being flush with the top or bottom plate of the cabinet maintains the consistency and aesthetics of the cabinet appearance. This concealed design avoids the problems of abrupt or inconsistent appearance that may be caused by traditional locks. In addition, this design also enhances security. Because the lock body is hidden inside the cabinet and the operating mechanism is flush with the outer surface, it is difficult for unauthorized persons to detect the existence of the lock, thereby improving the anti-theft performance.

[0053] In actual applications, the connection mechanism between the snap button 9 and the lock 5 can take a variety of forms. One common way is to use the lever principle. When the snap button is pressed, one end of the lever moves downward, driving the other end to lift upward, thereby pushing the lock to move. Another way is to use a cam mechanism to convert the rotational motion of the snap button 9 into the linear motion of the lock 5. The design of these mechanisms needs to consider factors such as operating force and travel distance to ensure that the user can easily operate while effectively pushing the lock 5 to move. In specific implementation, the material of the snap button 9 can be selected from wear-resistant and corrosion-resistant materials, such as stainless steel or high-strength engineering plastics, to ensure stability and durability for long-term use.

[0054] The snap button 9 of the present application not only realizes a convenient unlocking operation, but also echoes the concealed design of the lock body, thereby improving the overall safety and aesthetics. Traditional external locks usually require keys or special tools to operate, while the design of the snap button 9 in the present application makes the unlocking process simple and intuitive. Users only need to press lightly with their fingers to complete the unlocking, without the need to carry additional keys, which greatly improves the convenience of use. In addition, traditional locks often protrude from the surface of the cabinet, affecting the overall aesthetics, while the snap button 9 of the present application is flush with the top or bottom plate of the cabinet, maintaining the consistency and simplicity of the appearance. This design not only improves the aesthetics of the product, but also enhances safety, because the concealed lock is not easy to be detected, thereby improving the anti-theft performance. Compared with some locks that require a complicated installation process, the design of the present application is easier to integrate into various types of cabinets, improving the versatility and production efficiency of the product.

[0055] Furthermore, a groove 11 is provided on the bottom surface of the snap button 9 near the lock body opening 12, and the groove 11 is used to sense the pressing position when touched. Figure 6 In some specific embodiments, the hidden lock is installed inside the top plate of the cabinet. When the cabinet door 13 is opened, only the bottom of the hidden lock, that is, the button 9 and the groove 11 on the button 9, can be seen. Figure 7 By pressing the groove 11 on the button 9 upward, the lock buckle 5 is pushed upward, the locked lock tongue 10 is unlocked, and the cabinet door 13 can be opened by changing the hidden lock from the locked state to the unlocked state.

[0056] The function of groove 11 is to provide tactile feedback, allowing the user to sense the correct pressing position when touching it. The presence of groove 11 on the underside of snap 9 solves the problem of users having difficulty accurately locating the pressing position. When the user touches groove 11, they can immediately sense that this is the correct pressing position, allowing accurate operation without visual assistance. This design not only improves the convenience and accuracy of operation, but also maintains the concealed nature of the concealed lock. The presence of groove 11 does not affect the appearance of the lock body, but it significantly improves the user experience.

[0057] In actual applications, the design of the groove 11 can be implemented in a variety of ways. For example, the groove 11 can be circular, oval, square or irregular in shape. The depth of the groove 11 can be adjusted as needed, usually between 0.5mm and 2mm, to ensure that the user can clearly feel the existence of the groove while not affecting the overall structural strength of the snap 9. The design of the groove 11 is closely related to the positional relationship between the snap 9 and the lock body opening 12. Usually, the groove 11 is set on the side close to the lock body opening 12, so that the user can more easily find the correct pressing position when touching. The edge of the groove 11 can be made into a smooth transition to avoid sharp edges and improve the comfort of use. In addition, the surface of the groove 11 can be treated with special textures, such as tiny bumps or depressions, to further enhance the tactile feedback effect. This texture treatment not only improves the touch, but also prevents fingers from slipping in humid environments, thereby improving the stability and safety of operation.

[0058] The design of the groove 11 forms a coordinated whole with the overall structure of the snap 9. By providing the groove 11 on the bottom surface of the snap 9, the present application effectively solves the problem that it is difficult for users to accurately locate the pressing position. When the user needs to operate the concealed snap lock, he will first touch the surface of the snap 9 with his fingers. Since the snap 9 is flush with the top plate or bottom plate of the cabinet, it may be difficult for the user to directly find the exact pressing position. At this time, the presence of the groove 11 plays a key role. When the user touches the groove 11, it can naturally guide the finger to move to the correct pressing position. This design not only solves the positioning problem, but also prompts the user in the direction and strength of the force, making the unlocking operation smoother and more intuitive. Without relying on vision, the user can accurately locate and apply force, which greatly improves the convenience and accuracy of the operation. Especially in low light or when quick operation is required, the advantages of this tactile feedback are more obvious, which increases the success rate of unlocking.

[0059] At the same time, the presence of groove 11 does not affect the appearance or concealment of the lock body. When the snap is not pressed, groove 11 is located on the bottom surface of snap 9, making no abnormality visible from the front, maintaining the overall smooth and beautiful appearance. This design ensures functionality without sacrificing aesthetics, perfectly balancing practicality and design. Furthermore, the design of groove 11 indirectly improves the durability of the entire lock. Because the user can more accurately locate the pressing position, the number of blind groping and repeated pressing is reduced, thereby reducing unnecessary wear on the lock mechanism and extending the lock's service life.

[0060] In some embodiments, the edges of the groove 11 are chamfered to a depth of 0.2 mm to ensure a smooth transition. The inner surface of the groove 11 can have a fine, wavy texture with a depth of approximately 0.1 mm to further enhance the tactile feel. The surface of the snap button 9 can be sprayed with a coating that matches the cabinet's color to ensure aesthetics.

[0061] Traditional concealed locks usually lack a clear tactile feedback mechanism, and users often need to rely on vision or repeated attempts to find the correct operating position. This not only reduces the efficiency of use, but may also increase the wear and tear of the lock due to repeated operations. The present application effectively solves this problem through a simple and ingenious groove 11. Compared with some high-end locks that use electronic touch or complex mechanical structures, the design of the present application is simpler, more reliable and less expensive. It does not require an additional power supply or a complex mechanical structure. Simply by adding a carefully designed groove 11 to the existing snap button 9, the user experience can be significantly improved. This design is not only suitable for new products, but can also be easily applied to the upgrade and transformation of existing products. It has wide applicability and practical value.

[0062] Please refer to Figures 4 and 5 , wherein it is further proposed that the lock body also includes an installation fixing screw 1 for installing the lock body inside the top plate or bottom plate of the cabinet.

[0063] The mounting screw 1 securely mounts the lock body to the top or bottom panel of the cabinet, offering advantages such as strong stability, easy installation, good concealment, and strong adaptability. This ensures secure installation of the lock body while maintaining its concealment. This installation method meets functional requirements without affecting the cabinet's aesthetics. The mounting screw 1 and other components of the lock body, such as the lock catch 5 and snap button 9, form a complete locking system. The screw's securing action provides stable support for the lock catch 5, enabling it to accurately mate with the lock tongue 10, achieving a reliable locking function. Furthermore, the screw's fixing provides a solid foundation for the operation of the snap button 9, ensuring that the entire lock body structure remains stable and does not loosen or shift when the user presses to unlock it. In practical applications, the mounting screw 1 in this application can be made of a variety of specifications and materials. For example, screws made of materials such as stainless steel, carbon steel, or alloy steel can be used to adapt to different cabinet materials and usage environments. Countersunk hexagon socket head screws can also be used as mounting screws 1.

[0064] The present application solves the problem of unstable installation and unsightly appearance of traditional external locks. Traditional locks are often surface-mounted, which is not only easy to loosen, but also leaves obvious marks on the surface of the cabinet. The solution of the present application completely hides the lock body inside the top or bottom plate of the cabinet, which not only ensures the installation strength but also achieves an aesthetically pleasing concealed effect. At the same time, compared with some complicated embedded lock installation methods, the screw fixing method of the present application is simpler and more direct, which reduces the installation difficulty and cost, and improves the popularity and practicality of the product. The use of screw fixing provides stronger tensile and shear resistance, and can maintain the stability of the lock body even in frequent use or under external impact. It is also convenient for later maintenance and replacement. The lock body can be disassembled by simply loosening the screws without destroying the cabinet structure. In addition, screw fixing also allows fine-tuning of the position of the lock body to ensure precise alignment with the lock tongue 10, thereby improving the reliability of the lock.

[0065] In some preferred embodiments, the concealed snap lock can be installed inside a panel such as a top plate or bottom plate, a vertical partition, etc. in a cabinet, with its edge in contact with the handle of the cabinet door 13, so that the installation position can be flexibly selected according to the actual needs of the user, and it can be used with different door types at will, and only the lock body and the lock tongue 10 need to be installed at the corresponding positions of the cabinet panel and the cabinet door 13. The lock body of the concealed snap lock is relatively small and hidden inside the cabinet, so that the lock body and the lock tongue 10 are not visible after the cabinet door 13 is closed. When the lock tongue 10 is unlocked and the cabinet door 13 is opened, the only visible surface of the concealed snap lock is the lock body opening 12 on the front and the snap button 9 at the bottom. In a specific embodiment, the snap button 9 at the bottom is flush with the bottom of the shell 6 through a small gap. The visible surface can also be subjected to surface treatment such as electroplating and painting, so that the concealed snap lock installed inside the cabinet of a double-door low cabinet has a better overall appearance, better concealment and is more beautiful.

[0066] Furthermore, in some preferred embodiments, the lock body also includes a cover fixing screw 2 for fixing the cover 3 to the top of the lock body; a spring 4 is provided at the connection between the cover 3 and the lock buckle 5, and the spring 4 is used to automatically rebound the lock buckle 5 so that the lock buckle 5 locks the lock tongue 10.

[0067] The function of the cover plate fixing screw 2 is to firmly secure the cover plate 3 to the top of the lock body, ensuring the structural integrity and stability of the lock body. This design makes the lock body more durable and less susceptible to damage. The spring 4 is located at the connection between the cover plate 3 and the lock catch 5, and its main function is to provide automatic rebound force. When the lock catch 5 is unlocked or moved, the spring 4 automatically pushes the lock catch 5 back into place, causing it to relock the lock tongue 10 or automatically return to its original position after being unlocked. This automatic rebound mechanism ensures that the lock catch 5 can lock the lock tongue 10 promptly and reliably, improving the efficiency and safety of the lock and further enhancing the concealment of the hidden lock.

[0068] In practice, the cover plate fixing screws 2 can be made of a variety of specifications and materials, such as M3, M4, or M5 stainless steel screws. The specific choice depends on the size and load-bearing requirements of the lock body. In one embodiment, the cover plate fixing screws 2 are small cross-head countersunk screws to ensure sufficient fixing strength without penetrating the lock body. To enhance corrosion resistance, zinc- or nickel-plated screws can be used. The spring 4 is typically made of stainless steel or galvanized carbon steel to prevent rust during long-term use. The specifications of the spring 4 can be determined based on the size of the lock catch 5 and the required rebound force. For example, a compression spring with a wire diameter of 0.5-1mm, an outer diameter of 5-10mm, and a free length of 15-25mm can be used. The spring constant of the spring 4 is typically between 0.1-0.5N / mm to ensure that the lock catch 5 rebounds smoothly but not excessively tight. The connection between the cover plate 3 and the lock catch 5 can be designed with a dovetail groove or groove structure to facilitate the installation and replacement of the spring 4. This design not only improves assembly efficiency but also facilitates subsequent maintenance. The cover plate 3 can be made of the same material as the lock body, such as aluminum alloy or stainless steel, and its thickness is usually between 2-4 mm to ensure sufficient strength and lightness.

[0069] The combined use of the cover plate fixing screw 2 and the spring 4 not only solves the problem of securing the cover plate 3 but also enables the automatic rebound function of the lock catch 5. These two features are closely related: the cover plate fixing screw 2 ensures the stability of the entire lock body structure and provides a reliable fixing base for the spring 4; while the spring 4 automatically rebounds within this stable structure, allowing the lock catch 5 to reliably lock the lock tongue 10. This design not only improves the safety and service life of the lock but also simplifies the user's operation process. In actual use, when the user closes the cabinet door 13, the lock tongue 10 is inserted into the lock body opening 12. At this time, the spring 4 pushes the lock catch 5 to move and lock the lock tongue 10. When the user needs to open the cabinet door 13, they simply press the button 9. The lock catch 5 overcomes the force of the spring 4 and moves, releasing the lock tongue 10. Once the user releases the button 9, the spring 4 immediately pushes the lock catch 5 back into place, ready for the next locking operation. Throughout this process, the cover plate fixing screw 2 maintains the stability of the lock body structure, ensuring the reliable operation of the locking mechanism.

[0070] The use of the cover fixing screw 2 makes the lock body structure more compact and stable, reducing the risk of the lock being damaged by external forces. The automatic rebound lock design driven by the spring 4 not only improves the reliability of the lock, but also simplifies the user's operation, eliminating the need to manually reset the lock 5. In addition, this design also improves the concealment of the lock, because the lock 5 always remains in the locked position and does not expose the internal structure of the lock body. The present application simplifies the operation process and improves the user experience through the snap button 9 and the automatic rebound mechanism. At the same time, the present application is also more suitable for modern minimalist style furniture design, and can meet the user's dual needs for aesthetics and functionality.

[0071] Furthermore, in some preferred embodiments, the lock body further comprises a shell 6 , and the front and bottom of the shell 6 are provided with protruding edges for covering the openings and gaps of the top plate or bottom plate of the cabinet.

[0072] The front and bottom of the outer shell 6 are provided with protruding edges that effectively conceal the openings and gaps in the cabinet's top or bottom panels for mounting the lock body. Designing the protruding edges on the lock body's outer shell 6 not only enhances the aesthetics of the lock body during installation but also enhances its concealment. These protruding edges fit snugly against the cabinet's top or bottom panels, visually eliminating any signs of installation and further integrating the lock body into the cabinet. This design ensures both the functionality of the lock body and the overall appearance of the lock, effectively enhancing the product's quality and quality.

[0073] In practice, the protruding edges of the housing 6 can be designed in a variety of ways to achieve a concealing effect. In some specific embodiments, the front protruding edge of the housing 6 can be designed as a thin sheet with a width of 3 mm and a thickness of 0.5 mm, while the bottom protruding edge can be designed as a strip with a width of 2 mm and a thickness of 1 mm. These dimensions effectively cover the opening gap while not interfering with the proper closing of the cabinet door 13. For example, the housing 6 can be designed as an L-shaped structure, with the front protruding edge extending toward the cabinet door 13 and the bottom protruding edge extending downward, forming a complete shield. Alternatively, the protruding edge can be rounded to create a smoother and more natural transition between the housing 6 and the top or bottom panel of the cabinet. The width of the protruding edge can be adjusted according to actual needs, typically within the range of 1-5 mm to ensure adequate concealment without interfering with the proper opening and closing of the cabinet door 13. The material of the housing 6 is also important. Materials similar or similar to those of the cabinet body, such as wood, metal, or high-grade plastic, can be used to ensure a consistent appearance. Surface treatments such as painting, electroplating, or brushing can be used to further enhance the aesthetics.

[0074] In addition, the shell 6 also produces a positive cooperative effect with other parts of the lock body. For example, the shell 6 can be combined with the snap button 9 to further enhance the concealment while ensuring the function of the snap button 9. The protruding edge at the bottom of the shell 6 can be coordinated with the snap button 9, which can not only cover the opening gap but also not affect the user's touch-sensitive pressing position. In practical applications, the shell 6 not only solves the problems of aesthetics and concealment, but also provides additional protection. The protruding edge can prevent dust or liquid from entering the interior of the lock body, extending the service life of the lock body. At the same time, it is also convenient for cleaning and maintenance, improving the practicality of the product. When the lock body needs to be repaired or replaced, the shell 6 is also easy to disassemble and reinstall, without the need for additional processing of the cabinet body.

[0075] Traditional locks are often exposed on the cabinet surface, which not only affects the overall aesthetics but also easily accumulates dust, making cleaning and maintenance difficult. The present invention cleverly addresses these issues through the design of the outer shell 6, integrating the lock body with the cabinet, significantly enhancing the overall aesthetics and practicality of the product. Furthermore, compared to solutions that simply embed the lock body within the cabinet, the outer shell 6's protruding edges completely eliminate installation traces, achieving a truly concealed effect. This design is not only suitable for high-end custom furniture, but can also be applied to mass-produced standardized furniture, enhancing product competitiveness.

[0076] Furthermore, in some preferred embodiments, the lock body further includes a pin 7 , which is arranged in the lock body across the snap button 9 so as to embed the snap button 9 in the bottom of the lock body and allow the snap button 9 to rotate around the pin 7 .

[0077] Pin 7, which passes through snap button 9 and is located within the lock body, secures snap button 9 to the bottom of the lock body through pin 7, ensuring a secure connection between the snap button 9 and the lock body, preventing it from loosening or falling off, and improving the stability and durability of the entire lock structure. Furthermore, the design of pin 7 allows snap button 9 to rotate around its axis within a certain space, ensuring its flexibility and enabling the user to easily press it to unlock the lock.

[0078] In some specific embodiments, the pin 7 can be made of a variety of materials and shapes. For example, the pin 7 can be made of stainless steel, brass or high-strength plastic to meet different strength and durability requirements. The diameter of the pin 7 can be determined according to the size of the snap 9 and the expected force it is subjected to, usually between 2 mm and 5 mm, to ensure a stable connection without affecting the rotation of the snap 9. There are also multiple options for connecting the pin 7 to the snap 9 and the lock body. The most common method is to press the pin 7 directly into the hole reserved in the lock body and fix it by interference fit. Another method is to set threads at both ends of the pin 7 and fix it to the lock body with a nut. This method is convenient for later maintenance and replacement. A snap-on design can also be used to enable the pin 7 to be quickly installed and disassembled, facilitating production and maintenance.

[0079] The design of this application not only solves the problem of the secure installation of the snap button 9, but also cleverly maintains the operational flexibility of the snap button 9. When the user presses the snap button 9, the snap button 9 rotates within a certain space around the axis of the pin 7, pushing the lock buckle 5 to move, thereby releasing the lock tongue 10 and unlocking it. Because the pin 7 provides a stable support point, the pressing operation of the snap button 9 becomes smoother and more controllable. At the same time, the presence of the pin 7 also limits the excessive rotation of the snap button 9, preventing the snap button 9 from being damaged or falling off during use. In some specific embodiments, in order to further optimize the user experience of the snap button 9, a lubricating material or a bearing can be added between the contact surface of the pin 7 and the snap button 9. For example, a polytetrafluoroethylene (PTFE) coating or a micro ball bearing can be used to reduce friction, making the rotation of the snap button 9 smoother, while extending the service life of the pin 7 and the snap button 9.

[0080] Traditional locks often leave buttons or switches exposed, making them vulnerable to damage from external forces or malicious manipulation. The design of this application, however, embeds the snap button 9 within the lock body, significantly improving safety and durability. Furthermore, because the snap button 9 is flush with the surface of the lock body, it does not affect the overall aesthetics of the cabinet, meeting the requirements of modern minimalist design. Furthermore, traditional lock buttons or switches often require complex spring mechanisms to achieve a rebound function, while this application achieves flexible operation of the snap button 9 through the simple structure of the pin 7, significantly simplifying the lock's internal structure, improving reliability, and reducing production costs.

[0081] Furthermore, in some preferred embodiments, the lock body further includes a torsion spring 8, which is sleeved onto the pin 7. The torsion spring 8 is used to rebound the snap button 9, automatically returning it to its original position flush with the bottom of the lock body. This design cleverly solves the problem of the snap button 9 automatically returning to its original position. The torsion spring 8 has the characteristic of storing and releasing torsional energy. When the snap button 9 is pressed, the torsion spring 8 is compressed and stores energy. Once the pressure is released, the torsion spring 8 releases the stored energy, pushing the snap button 9 back to its original position. This ensures that the snap button 9 automatically returns to its original position after use, always remaining flush with the bottom of the lock body.

[0082] In actual applications, the design of the torsion spring 8 can be implemented in a variety of ways. For example, torsion springs 8 made of different materials, such as stainless steel, carbon steel, or alloy steel, can be selected to adapt to different usage environments and requirements. The wire diameter, number of turns, and free length of the torsion spring 8 can also be adjusted according to actual needs to obtain the best rebound effect. There are also multiple options for connecting the torsion spring 8 to the pin 7. It can be directly mounted, or special grooves or protrusions can be designed on the pin 7 to better fix the torsion spring 8. In addition, the two ends of the torsion spring 8 can be fixed to appropriate positions inside the snap button 9 and the lock body, respectively, to ensure that the torsional force can be effectively transmitted.

[0083] This application not only solves the problem of automatic return of the snap button 9, but also creates a positive interaction with previous technical solutions. Combined with the groove 11 design on the bottom surface of the snap button 9, the user can sense the pressed position when touching it, while the rebound effect of the torsion spring 8 ensures that the snap button 9 quickly returns to its original position after use, remaining flush with the bottom of the lock body. This combination not only improves the user experience, but also further enhances the concealment of the lock body. Through the use of the torsion spring 8, this application ensures that the snap button 9 automatically returns to its original position after use, remaining flush with the bottom of the lock body. This not only improves the concealment of the lock but also maintains the overall aesthetics of the cabinet. At the same time, since no additional keys or tools are required, the convenience of use is greatly improved. In addition, the use of the torsion spring 8 also reduces the possibility of the lock making noise during the door opening and closing process, further improving the user experience. This design not only improves the functionality and user experience of the lock, but also provides a new approach to modern furniture design and demonstrates the application value of technological innovation in daily life.

[0084] The present invention is a concealed, concealed lock for a low double-door cabinet. By installing the lock body inside the top or bottom plate of the cabinet, the concealed design solves the problem of traditional locks being exposed and affecting the appearance of the furniture. This design prevents the lock from being exposed when the cabinet door 13 is closed, preserving the overall aesthetics of the furniture. Unlocking by pressing the snap button 9 simplifies the unlocking operation, solving the problems of traditional locks being complex to operate and requiring a key, thereby improving user convenience. The provision of components such as the lock catch 5, the deadbolt 10, and the spring 4 ensures that the lock can be securely locked when closed, preventing unauthorized opening and enhancing the lock's security. The installation of the fixing screw 1 and the cover plate fixing screw 2 ensures the lock's secure installation within the cabinet, solving the potential loosening problem of traditional locks and improving the structural stability for long-term use. The automatic rebound design is further optimized by adding a dual spring system: the spring 4 is responsible for the rebound of the lock catch 5, and the torsion spring 8 is responsible for the rebound of the snap button 9, ensuring a smoother and more reliable rebound process and ensuring that the lock automatically returns to the locked state after each use. The precisely designed locking tongue 10 and lock catch 5 ensure that the cabinet door 13 locks securely every time it is closed. Because the lock is installed inside the cabinet, it is less likely to be discovered or vandalized from the outside, enhancing its vandalism resistance. A groove 11 on the underside of the snap 9 provides a touch-sensitive location, improving the user experience.

[0085] The foregoing is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. Persons skilled in the art will readily appreciate that the present application may be modified and altered in various ways. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A concealed snap lock suitable for a double-door low cabinet, comprising a lock body and a lock tongue (10) respectively arranged on the cabinet body and the cabinet door (13) for realizing a locking function, characterized in that: Also includes: The lock body is installed in a first cavity inside the top plate or bottom plate of the cabinet body close to the cabinet door (13), and does not protrude from the outer surface of the top plate or bottom plate of the cabinet body; A lock body opening (12) is provided on an edge of the lock body close to the cabinet door (13); The lock tongue (10) is mounted on the cabinet door (13) at a position corresponding to the lock body opening (12) and is used to cooperate with the lock body.

2. A concealed snap lock suitable for a double-door low cabinet according to claim 1, characterized in that: A lock catch (5) is provided at the front of the lock body near the lock body opening (12), which is used to lock the lock tongue (10) when the cabinet door (13) is closed.

3. The concealed snap lock for a double-door low cabinet according to claim 2, characterized in that: The lock body further comprises a snap button (9), wherein the snap button (9) is flush with the top plate or the bottom plate of the cabinet body, and the lock button (5) is pushed to move by pressing the snap button (9) to unlock the lock tongue (10).

4. The concealed snap lock for a double-door low cabinet according to claim 3, characterized in that: A groove (11) is provided on the bottom surface of the snap button (9) close to the lock body opening (12), and the groove (11) is used to sense the pressed position when touched.

5. The concealed snap lock for a double-door low cabinet according to claim 1, characterized in that: The lock body further comprises mounting screws (1) for mounting the lock body inside the top plate or bottom plate of the cabinet.

6. The concealed snap lock for a double-door low cabinet according to claim 2, characterized in that: The lock body further comprises a cover plate fixing screw (2) for fixing the cover plate (3) to the top of the lock body; A spring (4) is provided at the connection between the cover plate (3) and the lock buckle (5), and the spring (4) is used to automatically rebound the lock buckle (5) so that the lock buckle (5) locks the lock tongue (10).

7. The concealed snap lock for a double-door low cabinet according to claim 1, characterized in that: The lock body further comprises a shell (6), and the front and bottom of the shell (6) are provided with protruding edges for covering the openings and gaps of the top plate or bottom plate of the cabinet.

8. The concealed snap lock for a double-door low cabinet according to claim 3, characterized in that: The lock body further comprises a pin (7), which is arranged in the lock body so as to pass through the snap button (9) and embed the snap button (9) in the bottom of the lock body and enable the snap button (9) to rotate around the pin (7).

9. The concealed snap lock for a double-door low cabinet according to claim 8, characterized in that: The lock body further comprises a torsion spring (8), and the torsion spring (8) is sleeved on the pin (7).

10. The concealed snap lock for a double-door low cabinet according to claim 9, characterized in that: The torsion spring (8) is used to rebound the snap button (9) so that the snap button (9) automatically returns to a position flush with the bottom of the lock body.

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