Double-folding invisible door

Abstract

The utility model discloses a double-folding invisible door, and belongs to the technical field of door and window machining. The door comprises a door frame, a door plate and a folding assembly, and the door plate is matched with the door frame; the folding assemblies are arranged between the door plate and the door frame, each folding assembly comprises a first hinge piece and a second hinge piece, one end of each first hinge piece is hinged to the door plate, and the two ends of each second hinge piece are hinged to the other end of the corresponding first hinge piece and the door frame correspondingly; the door plate has a closed state and an open state relative to the door frame, in the closed state, the side portion of the second hinge part abuts against the side portion of the first hinge part, and the door plate is embedded in the door frame; in the opening state, the included angle between the first hinge piece and the second hinge piece is 0-180 degrees, and the door plate is opened relative to the door frame. According to the utility model, narrow space can be avoided, the door plate can be opened conveniently, and articles in the cabinet body can be taken out conveniently.

Description

Technical Field

[0001] This utility model relates to the field of door and window processing technology, and in particular to a double-folding hidden door. Background Technology

[0002] In the existing technology, storage cabinets, appliance cabinets or fire cabinets commonly use single doors. One side of the single door is connected to the door frame by a hinge, while the other side is connected to the door frame by a door lock or other means to close the cabinet.

[0003] When a single-door cabinet is opened, the door panel is located on one side of the cabinet's door frame, occupying a significant amount of external space. In particular, some storage cabinets, appliance cabinets, or fire extinguisher cabinets are placed in relatively narrow corners, where the door panel can easily be obstructed, making it difficult to open the door and retrieve items. Utility Model Content

[0004] In view of this, it is necessary to provide a double-folding concealed door to solve the problem that existing door panels are prone to collision with narrow spaces.

[0005] This utility model provides a double-fold concealed door, which is applied to a power distribution cabinet. The opening and closing path of the power distribution cabinet is partially obscured by the external environment. The concealed door includes:

[0006] Door frame;

[0007] The door panel is adapted to the door frame.

[0008] At least two sets of folding components are disposed between the door panel and the door frame. The folding components include a first hinge and a second hinge. One end of the first hinge is hinged to the door panel, and both ends of the second hinge are respectively hinged to the other end of the first hinge and the door frame.

[0009] The door panel has a closed state and an open state relative to the door frame. In the closed state, the side of the second hinge abuts against the side of the first hinge, and the door panel is fitted into the door frame. In the open state, the included angle between the first hinge and the second hinge is 0°-180°, and the door panel is open relative to the door frame.

[0010] Furthermore, one side of the second hinge member is provided with a recessed portion that is adapted to the first hinge member, and the first hinge member abuts against the recessed portion in the closed state.

[0011] Furthermore, the second hinge member has a groove at one end opposite to the first hinge member, and the first hinge member is movably inserted into the groove and hinged to the second hinge member.

[0012] Furthermore, it also includes a first connector, the two ends of which are respectively connected to the two folding components, and the first connector is hinged to the first hinge via the groove.

[0013] Furthermore, it also includes a second connector, the ends of which are respectively connected to different first hinges.

[0014] Furthermore, a first hinge seat is provided between the first hinge member and the door panel, the first hinge seat is fixedly connected to the door panel, and the first hinge member is hinged to the first hinge seat.

[0015] Furthermore, a second hinge seat is provided between the second hinge member and the door frame, the second hinge seat is fixedly connected to the door frame, and the second hinge member is hinged to the second hinge seat.

[0016] Furthermore, a rebound device is provided between the door frame and the door panel, the rebound device is fixedly connected to the door frame, and the rebound head of the rebound device is positioned relative to the door panel.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model discloses a double-folding concealed door, which is equipped with a folding assembly. The folding assembly includes a first hinge and a second hinge. One end of the first hinge is hinged to the door panel, and both ends of the second hinge are respectively hinged to the other end of the first hinge and the door frame. The two hinges form a double-folding structure. The double-folding structure can be gradually unfolded in a folding manner during opening, and can be tightly embedded in the door frame when closed, avoiding the problem of traditional single doors occupying a lot of external space. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection between the door frame and the folding assembly in this utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure of the folding component, the first connector, and the second connector in this utility model;

[0023] Figure 4 This is a schematic diagram of the folding component in this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the second hinge member in this utility model.

[0025] In the diagram, 100 represents the door frame.

[0026] 200. Door panel;

[0027] 300, Folding assembly; 310, First hinge; 311, Groove; 320, Second hinge; 321, Recess; 330, First hinge seat; 340, Second hinge seat;

[0028] 400. First connector;

[0029] 500. Second connector. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0031] This embodiment of a double-folding concealed door relates to the field of door and window processing technology. By setting a folding assembly 300 between the door frame 100 and the door panel 200, and the folding assembly 300 having at least two hinges, the degree of freedom of the door panel 200 is increased, allowing the door panel 200 to avoid narrow spaces, making it convenient to open the door panel 200 and retrieve items from the cabinet.

[0032] Please see Figures 1 to 5 This embodiment describes a double-folding concealed door applied to an electrical distribution cabinet. The opening and closing path of the cabinet is partially obscured by the external environment. The concealed door includes a door frame 100, a door panel 200, and folding components 300. The door panel 200 can be adapted to the door frame 100 to achieve sealing and opening of the cabinet. At least two sets of folding components 300 are disposed between the door panel 200 and the door frame 100, allowing the door panel 200 to rotate at multiple angles and avoid narrow spaces.

[0033] The folding assembly 300 includes a first hinge 310 and a second hinge 320. One end of the first hinge 310 is hinged to the door panel 200, and both ends of the second hinge 320 are respectively hinged to the other end of the first hinge 310 and the door frame 100. The two hinges form a double-folding structure. The double-folding structure can be gradually unfolded in a folding manner during opening, and can be tightly embedded in the door frame 100 when closed, avoiding the problem that traditional single doors occupy a lot of external space.

[0034] The door panel 200 has a closed state and an open state relative to the door frame 100. In the closed state, the door panel 200 is completely fitted inside the door frame 100, and the connection between the door panel 200 and the door frame 100 is completed by the folding assembly 300. When the door is closed, the two hinges (the first hinge 310 and the second hinge 320) of the folding assembly 300 cooperate with each other, allowing the door panel 200 to be completely aligned with the door frame 100. The door panel 200 is almost integrated with the door frame 100, occupying very little external space.

[0035] In the open state, when the door panel 200 is opened, the included angle between the hinges (first hinge 310 and second hinge 320) of the folding assembly 300 gradually increases. The included angle varies between 0° and 180°, causing the door panel 200 to fold gradually and rotate relative to the door frame 100 during the opening process. When the door is fully open, the door panel 200 does not occupy the space outside the original door frame 100, but can be fully unfolded along the path of the hinges, reducing the external area occupied by the door panel 200.

[0036] In some embodiments, please refer to Figures 3 to 5 The second hinge 320 has a recess 321 on one side that is adapted to the first hinge 310. In the closed state, the first hinge 310 and the recess 321 of the second hinge 320 abut against each other to form a "clamping" or "tight connection" connection, which can effectively maintain the stability of the door panel 200 when closed and avoid the problem of gaps between the door panel 200 and the door frame 100 or loosening of the door panel 200 due to door vibration or external force interference.

[0037] By abutting against the first hinge 310 and the recess 321, the door panel 200 can be more tightly embedded into the door frame 100, reducing the gap between the door frame 100 and the door panel 200, thereby improving the airtightness of the cabinet. The fire cabinet and electrical cabinet can maintain a sealed environment with the help of the recess 321, which helps prevent dust, liquids or external contaminants from entering the cabinet.

[0038] In some embodiments, please refer to Figure 4 and Figure 5 The second hinge 320 has a groove 311 at one end relative to the first hinge 310. The first hinge 310 is movably inserted into the groove 311. The first hinge 310 is hinged to the second hinge 320. The first hinge 310 is inserted into the groove 311 of the second hinge 320, allowing a certain amount of relative movement between the two. This reduces the friction caused by the direct connection of traditional hinges, making the door panel 200 smoother during opening or closing, and reducing the difficulty or jamming caused by excessive friction.

[0039] The groove 311 provides a "track" or "guide" for the first hinge 310, ensuring that it does not detach or move irregularly during operation. In this way, the connection between the hinges remains stable even during repeated opening and closing, ensuring that the door will not become loose or unstable during use.

[0040] In some embodiments, a double-folding concealed door further includes a first connector 400, with both ends of the first connector 400 connected to two folding assemblies 300 respectively. The first connector 400 passes through a groove 311 and is hinged to a first hinge member 310. The first connector 400 can serve as the hinge axis between the first hinge member 310 and the second hinge member 320, providing a rotation and support center for their relative rotation. The first connector 400 can also serve as a connection medium between the two sets of folding assemblies 300, which helps to enhance the stability of the entire folding door system, enabling the folding assemblies 300 to maintain good coordination during opening and closing, and preventing malfunctions or inconvenience caused by structural loosening.

[0041] The first connector 400 connects the two sets of folding components 300, which can share more of the load and ensure that the weight of the door panel 200 can be evenly distributed throughout the structure when the door panel 200 is opened in a large area, reducing damage or deformation caused by excessive local load.

[0042] In the specific implementation process, the first connecting member 400 is a rigid connecting column. The first connecting column is a cylinder, which can serve as a hinge axis and maintain the corresponding structural strength.

[0043] In some embodiments, please refer to Figure 4 The ends of the second connector 500 are connected to different first hinges 310, and the ends of the second connector 500 are connected to multiple first hinges 310, which can effectively distribute the stress points of the door panel 200. Through this distributed connection, the stress of the entire folding door system is more even, avoiding deformation or damage caused by excessive load on a single connection point.

[0044] By connecting the ends of the second connector 500 to different first hinges 310, the movement of each folding part can be more coordinated when the folding door is opened and closed. The opening and closing process of the door panel 200 will be smoother, avoiding the overall opening and closing effect from being affected by excessive load or jamming of a certain part of the door panel 200.

[0045] In some embodiments, please continue reading Figure 4A first hinge seat 330 is provided between the first hinge member 310 and the door panel 200. The first hinge seat 330 is fixedly connected to the door panel 200, ensuring a stable relationship between the hinge member and the door panel 200. The hinge function between the first hinge member 310 and the first hinge seat 330 not only ensures the correct position and movement trajectory of the door panel 200, but also prevents problems caused by loosening or detachment between the door panel 200 and the hinge member during use, thereby enhancing the overall structural stability.

[0046] Since the first hinge seat 330 is fixed on the door panel 200, the relative displacement or offset between the hinge and the door panel 200 is avoided, making the door panel 200 more stable during opening and closing, and reducing the problem of jamming or door tilting caused by vibration or unstable connection.

[0047] The first hinge seat 330 can distribute the force on the hinge components, avoiding excessive local wear or deformation, thereby improving the durability of the hinge assembly and extending the service life of the door.

[0048] In some embodiments, please refer to Figure 5 A second hinge seat 340 is provided between the second hinge member 320 and the door frame 100. The second hinge seat 340 is fixedly connected to the door frame 100, and the second hinge member 320 is hinged to the second hinge seat 340. By fixing the second hinge seat 340 to the door frame 100, the stability of the hinge structure is ensured. During the opening and closing of the door, the fixed connection between the second hinge seat 340 and the door frame 100 provides stable support for the second hinge member 320, preventing the hinge components from loosening or falling off due to long-term use or external forces.

[0049] Because the second hinge seat 340 distributes the force to the door frame 100, the hinged connection between the second hinge member 320 and the second hinge seat 340 can effectively bear the weight and other external forces of the door panel 200 during opening and closing, making the force transmission more uniform. The second hinge seat 340 can avoid excessive force at a single point, thereby improving the overall compressive strength of the door.

[0050] The hinged connection between the second hinge seat 340 and the second hinge member 320 allows the door panel 200 to move along a predetermined trajectory during opening and closing. This results in smoother door operation, reducing the likelihood of jamming, tilting, or irregular movement, thus improving the user experience.

[0051] In some embodiments, a rebound device is provided between the door frame 100 and the door panel 200. The rebound device is fixedly connected to the door frame 100, and the rebound head of the rebound device is positioned opposite to the door panel 200. When the door panel 200 is opened or closed quickly, the rebound device can effectively absorb or mitigate the impact force of the door panel 200, reducing direct collisions between the door panel 200 and the door frame 100. Through the buffering effect, the door panel 200 will not suddenly impact the door frame 100 when closing, thereby avoiding violent vibration of the door.

[0052] The rebound mechanism can extend the service life of the door and hinge components. By mitigating the impact force when the door panel 200 closes, the rebound mechanism reduces repeated collisions between the door panel 200 and the door frame 100. The rebound mechanism can effectively reduce the wear and tear on the door, hinges, and related components, reducing damage caused by prolonged friction, thereby extending the overall service life of the door.

[0053] Workflow: First, at least two sets of folding components 300 are installed between the door frame 100 and the door panel 200. In the closed state, the door panel 200 is completely fitted inside the door frame 100, and the recesses 321 of the first hinge 310 and the second hinge 320 abut against each other, forming a "click-fit" or "tight connection". In the open state, the included angle between the hinges (first hinge 310 and second hinge 320) of the folding components 300 gradually increases. The included angle varies between 0° and 180°, causing the door panel 200 to fold gradually and rotate relative to the door frame 100 during the opening process.

[0054] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.

Claims

1. A double-folding concealed door, characterized in that, A concealed door is used in electrical distribution cabinets, where the opening and closing path of the cabinet door is partially obscured by the external environment. The concealed door includes: Door frame; The door panel is adapted to the door frame. At least two sets of folding components are disposed between the door panel and the door frame. The folding components include a first hinge and a second hinge. One end of the first hinge is hinged to the door panel, and both ends of the second hinge are respectively hinged to the other end of the first hinge and the door frame. The door panel has a closed state and an open state relative to the door frame. In the closed state, the side of the second hinge abuts against the side of the first hinge, and the door panel is fitted into the door frame. In the open state, the included angle between the first hinge and the second hinge is 0°-180°, and the door panel is open relative to the door frame.

2. A double-folding concealed door according to claim 1, characterized in that, The second hinge has a recessed portion on one side that is adapted to the first hinge, and the first hinge abuts against the recessed portion in the closed state.

3. A double-folding concealed door according to claim 2, characterized in that, The second hinge member has a groove at one end relative to the first hinge member, and the first hinge member is movably inserted into the groove and hinged to the second hinge member.

4. A double-folding concealed door according to claim 3, characterized in that, It also includes a first connector, the two ends of which are respectively connected to the two folding components, and the first connector is hinged to the first hinge via the groove.

5. A double-folding concealed door according to claim 4, characterized in that, It also includes a second connector, the ends of which are respectively connected to different first hinges.

6. A double-folding concealed door according to claim 1, characterized in that, A first hinge seat is provided between the first hinge member and the door panel. The first hinge seat is fixedly connected to the door panel, and the first hinge member is hinged to the first hinge seat.

7. A double-folding concealed door according to claim 1, characterized in that, A second hinge seat is provided between the second hinge member and the door frame. The second hinge seat is fixedly connected to the door frame, and the second hinge member is hinged to the second hinge seat.

8. A double-folding concealed door according to claim 1, characterized in that, A rebound device is provided between the door frame and the door panel. The rebound device is fixedly connected to the door frame, and the rebound head of the rebound device is positioned relative to the door panel.

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