Invisible door without spring bolt and door closer
By using magnetic blocks and limiting snap-fit structures, the closing strength of the hidden door is enhanced, solving the problem of low closing strength in existing technologies and achieving the effects of good closure and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-03
AI Technical Summary
Existing concealed doors have low closing strength and are easily broken when subjected to impact while closed, affecting their usability and efficiency.
The door panel is securely closed by using a magnetic block and snap-fit groove structure, combined with limiting and elastic support components. The door is initially closed by magnetic attraction, the spring provides elastic support, and the limiting block and snap-fit block work together to achieve mechanical locking.
It improves the closing strength of the hidden door, preventing it from breaking open when closed, reducing noise, and enhancing its usability and efficiency.
Smart Images

Figure CN224078972U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of concealed door technology, specifically relating to a concealed door without a latch or door closer. Background Technology
[0002] A hidden door is a type of door designed to blend into its surroundings, thus achieving a concealed effect. These doors are typically used to enhance the design of a space, hide storage areas, or protect privacy.
[0003] Hidden doors are often used without latches or door closers. Existing hidden doors have low closing strength and are easily broken when impacted while closed, making them inconvenient for users in daily life and reducing their effectiveness and efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a hidden door without a latch or door closer, which aims to solve the problems of low closing strength of existing hidden doors, easy breakage when impacted in the closed state, inconvenience for users in daily life, and reduced effectiveness and efficiency of hidden doors.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A concealed door without a latch or door closer includes:
[0007] Concealed door frame;
[0008] A door panel, one end of which is movably hinged to the inner wall of a concealed door frame via a hinge shaft;
[0009] Multiple mounting slots are respectively opened on the other inner wall of the concealed door frame and the other end of the door panel, and two snap-fit slots are opened on the other inner wall of the concealed door frame.
[0010] Multiple magnetic blocks are disposed on the inner surface of multiple mounting slots, and two screws are threaded to one side of each magnetic block; and
[0011] A switching mechanism is provided inside the door panel to connect the concealed door frame and the door panel.
[0012] As a preferred embodiment of this utility model, the switching mechanism includes:
[0013] Two sliding grooves are provided, both of which are located at the other end of the door panel. Limiting plates are slidably connected to the inner surfaces of both sliding grooves, and a snap-fit block is fixedly connected to one side of each of the two limiting plates.
[0014] Multiple limiting grooves are provided, and the multiple limiting grooves are respectively opened on the inner walls of the two sliding grooves. The inner surfaces of the multiple limiting grooves are slidably connected to limiting blocks. The adjacent ends of the multiple limiting blocks are fixedly connected to the two ends of the two locking blocks respectively.
[0015] A limiting component is provided in the sliding groove to limit and support the sliding snap block;
[0016] A push-pull assembly is disposed on one side of the door panel to enable the control latch block to slide left and right.
[0017] As a preferred embodiment of this utility model, the limiting component includes:
[0018] Multiple support seats are fixedly connected to one side inner wall of multiple limiting grooves, and springs are sleeved on the outer surface of each of the multiple support seats. A stop block is fixedly connected to one side end of each of the multiple limiting blocks.
[0019] As a preferred embodiment of this utility model, the push-pull assembly includes:
[0020] Two sliding grooves are provided, both of which are formed on the outer surface of the door panel. Connecting blocks are slidably connected to the inner surfaces of both sliding grooves. One end of each connecting block is fixedly connected to the outer surface of the two snap-fit blocks. A sliding handle is fixedly connected to the other end of each connecting block.
[0021] As a preferred embodiment of this utility model, the outer surface of the door panel is provided with a mounting frame, and the inner surface of the mounting frame is provided with transparent glass.
[0022] As a preferred embodiment of this utility model, the outer surface of the concealed door frame is provided with a ventilation groove, and the inner surface of the ventilation groove is provided with a plurality of ventilation holes.
[0023] As a preferred embodiment of this utility model, the upper and lower inner walls of the concealed door frame are provided with fixing grooves, and the inner surfaces of the two fixing grooves are provided with sound-silencing pads.
[0024] Compared with the prior art, the beneficial effects of this utility model are:
[0025] 1. In this solution, multiple magnetic blocks are aligned with the door frame and door panel. The door panel is initially closed by magnetic attraction. Under the elastic force of four springs, the length is extended, which pushes the two locking blocks to slide outward. At the same time, under the action of force, four limiting blocks slide inside the four limiting slots, which limits the sliding of the two locking blocks. The two locking blocks are locked by inserting into the two locking slots respectively, ensuring that the door panel is firmly closed. This strengthens the closing strength of the hidden door and avoids the phenomenon of breaking open when impacted in the closed state. It is convenient for users to use in daily life and improves the use effect and efficiency of the hidden door.
[0026] 2. In this solution, two fixed slots are used to install two sound-absorbing pads to reduce impact noise when the door panel is closed. The two sound-absorbing pads are made of rubber or silicone to provide cushioning and sound insulation. Attached Figure Description
[0027] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0028] Figure 1 This is the first perspective view of the present utility model;
[0029] Figure 2 This is a second perspective view of the present invention;
[0030] Figure 3 This is a three-dimensional sectional view of the present invention;
[0031] Figure 4 This utility model Figure 3 A magnified view of section A in the image.
[0032] In the diagram: 1. Concealed door frame; 2. Door panel; 3. Mounting frame; 4. Transparent glass; 5. Ventilation groove; 6. Ventilation hole; 7. Sliding groove; 8. Connecting block; 9. Sliding handle; 10. Mounting groove; 11. Magnetic block; 12. Screw; 13. Fixing groove; 14. Sound-absorbing pad; 15. Snap-fit groove; 16. Sliding groove; 17. Limiting plate; 18. Snap-fit block; 19. Limiting groove; 20. Limiting block; 21. Support base; 22. Spring; 23. Stop block. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Example 1
[0035] Please see Figure 1-4 The present invention provides the following technical solution:
[0036] A concealed door without a latch or door closer includes:
[0037] Concealed door frame 1;
[0038] Door panel 2, one end of door panel 2 is movably hinged to the inner wall of one side of concealed door frame 1 via a hinge pin;
[0039] Multiple mounting slots 10 are respectively opened on the inner wall of the other side of the concealed door frame 1 and the other end of the door panel 2. Two snap-fit slots 15 are opened on the inner wall of the other side of the concealed door frame 1.
[0040] Multiple magnetic blocks 11 are respectively disposed on the inner surface of multiple mounting slots 10, and two screws 12 are threadedly connected to one side end of each magnetic block 11; and
[0041] The switching mechanism is located inside the door panel 2 to connect the concealed door frame 1 and the door panel 2.
[0042] In a specific embodiment of this utility model, the concealed door frame 1 serves as the fixed frame of the hidden door, embedded inside the wall to ensure that the door panel 2 is flush with the wall surface after installation, achieving an "invisible" effect. The door panel 2, as the movable part of the door, is connected to the concealed door frame 1 via hinges to achieve the opening and closing function. Multiple mounting slots 10 are provided to fix multiple magnetic blocks 11, aligning them with the concealed door frame 1 and the door panel 2. The multiple magnetic blocks 11 magnetically attract and initially close the door panel 2, reducing the impact force of mechanical locking. Multiple screws 12 are used to adjust the multiple magnetic blocks. The position of block 11 ensures moderate adsorption force. Magnetic block 11 can be made of neodymium magnet. An adjustment hole is provided in the mounting groove 10 for fine-tuning the magnetic position. Two locking slots 15 engage with two locking blocks 18 to provide mechanical locking, preventing accidental opening of the door panel 2 due to wind or accidental contact. Two sliding grooves 16 provide sliding tracks for the two locking blocks 18, allowing them to extend and retract. Two limiting plates 17 restrict the movement range of the two locking blocks 18 to prevent them from falling off. Locking is achieved by inserting the two locking blocks 18 into the two locking slots 15, ensuring the door... The door panel 2 is securely closed, and the four limiting grooves 19 provide sliding space for the four limiting blocks 20, which supports and limits the sliding two locking blocks 18. The four support seats 21 are used to fix the four springs 22, thereby providing elastic support. The four springs 22 cause the two locking blocks 18 to automatically reset and remain in a normally closed state. The four stops 23 and the four limiting blocks 20 are fixed to protect the retracted springs 22 and prevent them from being over-compressed. The two push-pull grooves 7 are opened on the outer surface of the door panel 2, thereby providing sliding space for the two connecting blocks 8. At the same time, the two ends of the two connecting blocks 8 are connected to the push-pull handle 9 and the two locking blocks 18. When the push-pull handle 9 is pushed, the two locking blocks 18 are disengaged from the two locking grooves 15, completing the unlocking state between the door panel 2 and the concealed door frame 1. This strengthens the closing strength of the concealed door and avoids breakage when impacted in the closed state, making it convenient for users to use in daily life and improving the use effect and efficiency of the concealed door.
[0043] Please refer to the details. Figure 1 and Figure 4 The switching mechanism includes:
[0044] Two sliding grooves 16 are provided at the other end of the door panel 2. The inner surfaces of the two sliding grooves 16 are slidably connected to limit plates 17. One side of each limit plate 17 is fixedly connected to a snap-fit block 18.
[0045] Multiple limiting grooves 19 are respectively opened on the inner walls of the two sliding grooves 16. Limiting blocks 20 are slidably connected to the inner surfaces of the multiple limiting grooves 19. The adjacent ends of the multiple limiting blocks 20 are fixedly connected to the two ends of the two locking blocks 18.
[0046] A limiting component is provided within the sliding groove 16 to limit and support the sliding snap block 18.
[0047] A push-pull assembly is provided on one side of the door panel 2 to enable the control latch block 18 to slide left and right.
[0048] In this embodiment: two sliding grooves 16 provide sliding tracks for two locking blocks 18, allowing them to extend and retract; two limiting plates 17 restrict the movement range of the two locking blocks 18 to prevent them from falling off; the two locking blocks 18 are locked by inserting into the two locking grooves 15 respectively, ensuring that the door panel 2 is firmly closed; and the four limiting grooves 19 provide sliding space for the four limiting blocks 20, serving to support and limit the sliding of the two locking blocks 18; four support seats 21 are used to fix four springs 22, thereby providing elastic support. Spring 22 automatically resets the two locking blocks 18, keeping them in a normally closed state. They are fixed by four stop blocks 23 and four limit blocks 20, which protect the retracted spring 22 and prevent it from being over-compressed. Two push-pull grooves 7 are opened on the outer surface of the door panel 2, thus providing sliding space for the two connecting blocks 8. At the same time, the two ends of the two connecting blocks 8 are connected to the push-pull handle 9 and the two locking blocks 18. When the push-pull handle 9 is pushed, the two locking blocks 18 are disengaged from the two locking grooves 15, thus unlocking the door panel 2 and the concealed door frame 1.
[0049] Please refer to the details. Figure 4 The limiting components include:
[0050] Multiple support seats 21 are fixedly connected to one side inner wall of multiple limiting grooves 19. Springs 22 are sleeved on the outer surface of multiple support seats 21. A stop block 23 is fixedly connected to one side end of multiple limiting blocks 20.
[0051] In this embodiment: four support seats 21 are used to fix four springs 22, thereby providing elastic support. The two snap-fit blocks 18 are automatically reset according to the four springs 22 and kept in a normally closed state. The four stop blocks 23 and four limit blocks 20 are used to fix the springs 22, thereby protecting the contracted springs 22 and preventing the four springs 22 from being over-compressed.
[0052] Please refer to the details. Figure 1 The push-pull assembly includes:
[0053] Two sliding grooves 7 are formed on the outer surface of the door panel 2. Connecting blocks 8 are slidably connected to the inner surface of the two sliding grooves 7. One end of the two connecting blocks 8 is fixedly connected to the outer surface of the two snap-fit blocks 18 respectively. Push-pull handles 9 are fixedly connected to the other end of the two connecting blocks 8.
[0054] In this embodiment: two push-pull grooves 7 are formed on the outer surface of the door panel 2, thereby providing sliding space for the two connecting blocks 8. At the same time, the two ends of the two connecting blocks 8 are connected to the push-pull handle 9 and the two locking blocks 18. When the push-pull handle 9 is pushed, the two locking blocks 18 are disengaged from the inside of the two locking grooves 15, thus completing the unlocking state between the door panel 2 and the concealed door frame 1.
[0055] Please refer to the details. Figure 1 The outer surface of the door panel 2 is provided with a mounting frame 3, and the inner surface of the mounting frame 3 is provided with transparent glass 4.
[0056] In this embodiment: the transparent glass 4 is installed through the installation frame 3 to enhance the decorative or light-transmitting properties of the door panel 2. The transparent glass 4 provides lighting or decorative effects and is suitable for interior partition doors.
[0057] Please refer to the details. Figure 1 The outer surface of the concealed door frame 1 is provided with a ventilation groove 5, and the inner surface of the ventilation groove 5 is provided with multiple ventilation holes 6.
[0058] In this embodiment, the ventilation groove 5 facilitates the opening of multiple ventilation holes 6, which provide air circulation and are suitable for scenarios requiring ventilation, such as bathrooms and storage rooms.
[0059] Please refer to the details. Figure 3 The upper and lower inner walls of the concealed door frame 1 are provided with fixing grooves 13, and the inner surfaces of the two fixing grooves 13 are provided with sound-absorbing pads 14.
[0060] In this embodiment, two fixing slots 13 are used to install two sound-absorbing pads 14 to reduce the impact noise when the door panel 2 is closed. At the same time, the two sound-absorbing pads 14 are made of rubber or silicone to provide cushioning and sound insulation.
[0061] The working principle and usage process of this utility model are as follows: First, the concealed door frame 1 is embedded inside the wall. Then, the door panel 2 is connected to the concealed door frame 1 through hinges to realize the opening and closing function. According to the multiple magnetic blocks 11, they are aligned with each other in pairs, so that they are aligned with the concealed door frame 1 and the door panel 2. The door panel 2 is initially closed by magnetic adsorption. Under the action of the elastic force of the four springs 22, the length is extended, thereby pushing the two locking blocks 18 to slide outward. At the same time, under the action of force, the four limiting blocks 20 slide inside the four limiting grooves 19 respectively, which plays a role in limiting the sliding two locking blocks 18. The four stop blocks 23 protect the four retracted springs 22 to prevent the four springs 22 from being over-compressed. The two locking blocks 18 are inserted into the two locking grooves 15 respectively to lock, ensuring that the door panel 2 is firmly closed. When the door panel 2 is opened, pushing the push-pull handle 9 will cause the two locking blocks 18 to disengage from the two locking grooves 15, completing the unlocking state between the door panel 2 and the concealed door frame 1.
[0062] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A lock-tongueless door closer-free invisible door, characterized by, Include: The concealed door frame (1); The door plate (2) is movably hinged to the inner wall of one side of the concealed door frame (1) at one end; A plurality of mounting grooves (10) are respectively provided on the other side inner wall of the concealed door frame (1) and the other end of the door plate (2), and the other side inner wall of the concealed door frame (1) is provided with two clamping grooves (15); A plurality of magnetic blocks (11) are respectively arranged on the inner surfaces of the plurality of mounting grooves (10), and one side end of each of the plurality of magnetic blocks (11) is threadedly connected with two screws (12); And The switch mechanism is arranged in the door plate (2) to realize the connection between the concealed door frame (1) and the door plate (2).
2. A concealed door according to claim 1, characterized in that: The switch mechanism includes: Two sliding grooves (16) are respectively provided on the other end of the door plate (2), and the inner surfaces of the two sliding grooves (16) are slidably connected with two limit plates (17), and one side end of each of the two limit plates (17) is fixedly connected with a clamping block (18); A plurality of limit grooves (19) are respectively provided on the two side inner walls of the two sliding grooves (16), and the inner surfaces of the plurality of limit grooves (19) are slidably connected with a plurality of limit blocks (20), and the proximal ends of the plurality of limit blocks (20) and the two side ends of the two clamping blocks (18) are respectively fixedly connected; The limiting assembly is arranged in the sliding groove (16) to realize the limiting support of the sliding clamping block (18); The push-pull assembly is arranged on one side of the door plate (2) to realize the left and right sliding of the clamping block (18).
3. A concealed door according to claim 2, wherein: The limiting assembly includes: A plurality of support seats (21) are respectively fixedly connected to one side inner wall of the plurality of limit grooves (19), the outer surfaces of the plurality of support seats (21) are sleeved with springs (22), and one side end of each of the plurality of limit blocks (20) is fixedly connected with a stop block (23).
4. A concealed door according to claim 3, wherein: The push-pull assembly includes: Two push-pull grooves (7) are respectively provided on the outer surface of the door plate (2), and the inner surfaces of the two push-pull grooves (7) are slidably connected with two connecting blocks (8), one end of each of the two connecting blocks (8) and the outer surfaces of the two clamping blocks (18) are respectively fixedly connected, and the other end of each of the two connecting blocks (8) is fixedly connected with a push-pull handle (9).
5. A concealed door according to claim 4, wherein: The outer surface of the door plate (2) is provided with a mounting frame (3), and the inner surface of the mounting frame (3) is provided with a transparent glass (4).
6. A concealed door according to claim 5, wherein: The outer surface of the concealed door frame (1) is provided with a ventilation groove (5), and the inner surface of the ventilation groove (5) is provided with a plurality of ventilation holes (6).
7. A concealed door according to claim 6, wherein: The upper and lower inner walls of the concealed door frame (1) are provided with fixing grooves (13), and the inner surfaces of the two fixing grooves (13) are provided with silent soft pads (14).