Frame and panel door

Abstract

The application provides a frame-fan flush door, which comprises the following steps: a driving fan is hingedly connected to a door frame at one end and is provided with a first extension part and a first inward retraction part at the other end; a driven fan is hingedly connected to the door frame at one end and is provided with a second extension part and a second inward retraction part at the other end; the first extension part is located on the door opening side of the driving fan; the second extension part is located on the door closing side of the driven fan; a linkage lock is installed on the driven fan and comprises a handle which is rotatably installed on the driven fan; the handle is located at one end of the driven fan close to the driving fan and is connected to the driven fan through a rotating shaft; and a connecting rod is linkage-installed at the upper and lower ends of the handle. The first extension part on the driving fan and the second inward retraction part on the driven fan are mutually butted and engaged, thus replacing the necessary false mullion structure in the traditional double-leaf door; this not only simplifies the overall door and window structure, but also completely eliminates the visual obstruction caused by the false mullion, so that the door fan presents a complete and smooth plane effect when being closed, and the appearance is more simple and modern.

Description

Technical Field

[0001] This application relates to the field of door and window equipment technology, specifically to a door with a flush frame and sash. Background Technology

[0002] A double door, also known as a swing door, consists of two door panels and is typically used in situations where the doorway is wide. Its design places the door panels on opposite sides of the doorway, allowing them to open in both directions. Alternatively, a motor-controlled system can be installed for automatic opening and closing.

[0003] Existing double doors have the following drawbacks: when making double doors, a false mullion needs to be designed at the double opening position. The use of the false mullion increases the appearance of the profile and the sealing effect at the top and bottom of the false mullion is not good; conventional swing doors use two sealing strips, which have relatively poor heat insulation and sound insulation performance; when the passive sash is locked, both ends need to be locked separately, which is inconvenient to operate. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a door with a flush frame and sash.

[0005] This application provides a door with a flush frame and sash, including An active fan, one end of which is hinged to the door frame, and the other end is provided with a first extension and a first retractable part; A passive fan, one end of which is hinged to the door frame, and the other end is provided with a second extension and a second retractable part; The first extension is located on the opening side of the active fan and is used to dock with the second retractable part and restrict the opening of the passive fan; The second extension is located on the closing side of the passive fan and is used to dock with the first retractable part; A linkage lock, which is installed on the passive fan, includes a handle rotatably mounted on the passive fan; The handle is located at the end of the passive sash near the active sash, and is connected to the passive sash via a pivot. Connecting rods are installed at both the upper and lower ends for pin-connecting with the upper and lower ends of the door frame.

[0006] Furthermore, A torsion spring is also fitted on the rotating shaft to drive the handle to automatically reset; The passive fan has a mounting groove corresponding to the handle, which is used to hide the handle.

[0007] Furthermore, The handle is provided with a hinge shaft corresponding to each of the two connecting rods; The two hinge axes are symmetrically arranged about the rotation axis; The connecting rod is provided with a matching strip-shaped through hole corresponding to the hinge shaft.

[0008] Furthermore, Both the active and passive fans are equipped with heat insulation strips inside to form a thermal break structure; The passive and active fans are also equipped with sealing components at their respective ends that are close to each other, for sound insulation and heat preservation.

[0009] Furthermore, The sealing assembly includes a first sealing strip located on the active fan and a second sealing strip located on the passive fan; The second sealing strip is located at the broken bridge structure of the passive fan, near the door opening side, corresponding to the contact surface of the first sealing strip; The first sealing strip is located at the broken bridge structure of the active fan, and a protrusion is provided on the side away from the active fan for abutting and sealing with the first sealing strip.

[0010] Furthermore, The sealing assembly also includes a third sealing strip located on the active fan; The third sealing strip is fixedly installed on the first extension and is used to abut and seal against the second inner part.

[0011] Furthermore, The sealing assembly also includes a fourth sealing strip located on the passive fan; The fourth sealing strip is fixedly installed on the second extension and is used to abut and seal against the first inner part.

[0012] Furthermore, The active fan is also equipped with a touch lock; The latch is located on the side of the active fan's broken bridge structure near the first extension. The passive fan has a corresponding latch box for the latch lock.

[0013] The advantages and positive effects of this application are: This technical solution replaces the false mullion structure required in traditional double doors by interlocking the first extension on the active sash with the second inward retraction on the passive sash. This not only simplifies the overall door and window structure and reduces material costs and manufacturing complexity, but also completely eliminates the visual obstruction caused by the false mullion, allowing the door to present a complete and smooth planar effect when closed, resulting in a simpler and more modern appearance and truly achieving a visual effect of flush frame and sash.

[0014] By carefully setting multiple interlocking sealing components at the joint of the double doors, a multi-layered, continuous, elastic sealing barrier is formed. This design greatly improves the airtightness and watertightness of the door joint, thereby significantly improving the overall thermal insulation and sound insulation performance of the door, effectively reducing building energy consumption and enhancing user comfort.

[0015] The synchronous drive of the upper and lower locking points is achieved through the rotating shaft and symmetrically arranged linkage mechanism; the user only needs to operate one handle to simultaneously lock or unlock the upper and lower parts of the passive door to the door frame. The operation is simple and quick, overcoming the cumbersome problem of traditional double doors requiring separate operation of the upper and lower latches for the passive door, thus improving the convenience and efficiency of use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a door with a flush frame and sash provided in an embodiment of this application; Figure 2 This is a schematic diagram of the linkage lock for a door with flush frame and sash provided in an embodiment of this application.

[0017] The text labels in the diagram represent: 100-Active fan; 110-First extension; 120-First retractable part; 130-Lock; 200-Passive fan; 210-Second extension; 220-Second retractable part; 230-Snap-on box; 300-Handle; 301-Hinge shaft; 310-Rotating shaft; 320-Connecting rod; 321-Strip through hole; 400-Insulation strip; 410-First sealing strip; 420-Second sealing strip; 430-Third sealing strip; 440-Fourth sealing strip. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this application, the application will be described in detail below with reference to the accompanying drawings. The description in this section is only exemplary and explanatory, and should not be used to limit the scope of protection of this application.

[0019] Please refer to Figures 1-2This embodiment provides a door with a flush frame and sash, including an active sash 100, one end of which is hinged to the door frame, and the other end of which is provided with a first extension 110 and a first retractable portion 120; and a passive sash 200, one end of which is hinged to the door frame, and the other end of which is provided with a second extension 210 and a second retractable portion 220; the first extension 110 is located on the opening side of the active sash 100, and is used to mate with the second retractable portion 220 and restrict the opening of the passive sash 200. The second extension 210 is located on the closing side of the passive fan 200 and is used to dock with the first retractable part 120; the linkage lock is installed on the passive fan 200 and includes a handle 300 rotatably installed on the passive fan 200; the handle 300 is located at one end of the passive fan 200 near the active fan 100 and is connected to the passive fan 200 through a pivot 310, and connecting rods 320 are respectively installed at the upper and lower ends for pinning to the upper and lower ends of the door frame respectively.

[0020] In this embodiment, both the active door 100 and the passive door 200 are flush-mounted, so that the door leaf is flush with the outer surface of the door frame when closed, which is aesthetically pleasing. One end of the active door 100 is hinged to the left side of the door frame, and the free end is provided with a first extension 110 and a first retractable part 120. The first extension 110 protrudes from the main body of the active door 100 towards the side closer to the passive door 200, and is located on the opening side of the active door 100 (i.e., the side where the door leaf opens outward). The first retractable part 120 is recessed inward to form a stepped structure. The passive door 200 is also hinged to the right side of the door frame, and its free end is provided with a second extension 210 and a second retractable part 220. The second extension 210 is located on the closed side of the passive door 200, and the second retractable part 220 is located on the open side of the passive door 200.

[0021] In this embodiment, when the door is closed, the first extension 110 and the second retractable part 220 are interlocked and connected. Through the cooperation of their protruding and recessed structures, the passive door 200 is effectively restricted from opening outward, which plays a mechanical interlocking role. At the same time, the second extension 210 and the first retractable part 120 are connected to form another overlapping relationship, which further enhances the closing stability between the two doors.

[0022] In this embodiment, the linkage lock is installed on the passive door 200. By rotating the handle 300, the connecting rods 320 located on the upper and lower sides can be driven to move towards the middle or both ends at the same time, thereby forming a pin-lock with the door frame.

[0023] In a preferred embodiment, a torsion spring is also fitted on the rotating shaft 310 for driving the handle 300 to automatically reset; the passive fan 200 is provided with a mounting groove corresponding to the handle 300 for hiding the handle 300.

[0024] In this embodiment, a torsion spring is sleeved on the rotating shaft 310. The torsion spring is preferably made of spring steel, and its body is tightly fitted around the outer periphery of the rotating shaft 310. One end of the torsion spring is fixed to the rotating shaft 310, and the other end is fixed to the profile cavity of the passive fan 200 or a specially set fixed seat. When the user rotates the handle 300, the torsion spring is simultaneously twisted, storing elastic potential energy. After the user releases the handle 300, the potential energy stored in the torsion spring is immediately released, generating a reverse torque, driving the rotating shaft 310 and the handle 300 to automatically rotate back to the initial preset position. This automatic reset function ensures that the handle 300 always returns to its regular initial state after use, avoiding the handle from affecting the switching of the active fan 100.

[0025] In this embodiment, since the handle 300 is located on the mating surface between the passive fan 200 and the active fan 100, a hidden mounting groove is provided on the passive fan 200 corresponding to the handle 300, so that the handle 300 can be completely hidden in the mounting groove.

[0026] In a preferred embodiment, the handle 300 is provided with a hinge shaft 301 corresponding to each of the two connecting rods 320; the two hinge shafts 301 are symmetrically arranged about the rotating shaft 310; and the connecting rod 320 is provided with a matching strip-shaped through hole 321 corresponding to the hinge shaft 301.

[0027] In this embodiment, the handle 300 is rotatably mounted on the passive fan 200 via a pivot 310. In order to effectively convert the rotational motion of the handle 300 into the linear motion of the two connecting rods 320, two hinge shafts 301 are respectively provided on the body of the handle 300. These two hinge shafts 301 are not randomly arranged, but are symmetrically arranged about the pivot 310. This symmetrical layout ensures that when the handle 300 is rotated, the driving force applied to the upper and lower connecting rods 320 is equal in magnitude and opposite in direction, thereby ensuring that the two connecting rods can perform synchronous and smooth extension and retraction movements, avoiding jamming or asynchronous problems that may be caused by uneven force.

[0028] In this embodiment, each link 320 has a matching strip-shaped through hole 321 at the end near the handle 300; the length direction of the strip-shaped through hole 321 extends approximately along the potential movement trajectory direction of the link 320; the aforementioned hinge shaft 301 passes through this strip-shaped through hole 321, thereby movably connecting the link 320 and the handle 300 together.

[0029] In a preferred embodiment, both the active fan 100 and the passive fan 200 are provided with heat insulation strips 400 to form a thermal break structure; the passive fan 200 and the active fan 100 are also provided with sealing components at their respective ends for sound insulation and heat preservation.

[0030] In this embodiment, both the active fan 100 and the passive fan 200 are constructed from aluminum alloy profiles with a multi-cavity structure. A thermal break strip 400 is crucially installed within the internal cavities of these profiles. This thermal break strip 400 is typically made of a non-metallic material with low thermal conductivity. It is firmly connected between the aluminum profiles through precise machining, effectively separating the aluminum material on the inner and outer sides of the door leaf. This structure forms an efficient thermal break in the cross-section of the profile, i.e., a discontinuity in heat conduction. Its core function is to significantly block heat transfer between the indoor and outdoor environments through the metal profiles, thereby greatly improving the overall thermal insulation performance of the door and effectively reducing building energy consumption.

[0031] In this embodiment, to enhance the airtightness of the door leaf when closed and achieve better sound insulation and heat preservation, sealing components are respectively provided on the vertical edge end faces of the passive leaf 200 and the active leaf 100 that are close to each other. These sealing components cooperate with each other when the door leaf is fully closed. Specifically, when the active leaf 100 and the passive leaf 200 are closed, the sealing components respectively provided on the mating edges of the two will elastically contact and compress, forming one or more continuous elastic sealing barriers at the mating gap between the two leaves. This barrier can effectively block the propagation of airborne sound waves and improve the sound insulation effect. At the same time, it can also prevent indoor and outdoor air from penetrating, further enhancing the heat preservation performance of the door.

[0032] In a preferred embodiment, the sealing assembly includes a first sealing strip 410 located on the active fan 100 and a second sealing strip 420 located on the passive fan 200; the second sealing strip 420 is located at the broken bridge structure of the passive fan 200, near the door opening side corresponding to the abutting surface of the first sealing strip 410; the first sealing strip 410 is located at the broken bridge structure of the active fan 100, and has a protrusion on the side away from the active fan 100 for abutting and sealing with the first sealing strip 410.

[0033] In this embodiment, the specific positional relationship between the first sealing strip 410 and the second sealing strip 420, along with the raised structural design, forms a highly efficient and reliable sealing line on the critical path of the double-leaf docking, significantly improving the overall thermal insulation and sound insulation performance of the frame-leaf flush door.

[0034] In a preferred embodiment, the sealing assembly further includes a third sealing strip 430 located on the active fan 100; the third sealing strip 430 is fixedly mounted on the first extension 110 and is used to abut and seal against the second retractable portion 220.

[0035] In a preferred embodiment, the sealing assembly further includes a fourth sealing strip 440 located on the passive fan 200; the fourth sealing strip 440 is fixedly mounted on the second extension 210 and is used to abut and seal against the first retractable portion 120.

[0036] In a preferred embodiment, the active fan 100 is further provided with a latch 130; the latch 130 is located on the side of the broken bridge structure of the active fan 100 near the first extension 110; the passive fan 200 is provided with a corresponding latch box 230 corresponding to the latch 130.

[0037] In this embodiment, the latch 130 is preferably a common pin-type or hook-type latch structure, and its lock body is fixedly installed in the profile cavity of the active door 100. Its installation position is specially designed, located at the thermal break structure of the active door 100, and biased towards the side closer to the first extension 110; by setting the latch 130 in the profile area where the thermal break structure is located, the structural strength and stability of this area can be cleverly utilized, while avoiding the need to open holes in other parts of the door leaf, which may damage the overall rigidity or sealing potential.

[0038] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A door with flush frame and sash, characterized in that, include An active fan (100) is hinged to the door frame at one end and has a first extension (110) and a first retractable part (120) at the other end. A passive fan (200) is hinged to the door frame at one end and has a second extension (210) and a second retractable part (220) at the other end. The first extension (110) is located on the opening side of the active fan (100) and is used to dock with the second retractable part (220) and restrict the opening of the passive fan (200); The second extension (210) is located on the closing side of the passive fan (200) and is used to dock with the first retractable part (120); A linkage lock is installed on the passive fan (200) and includes a handle (300) rotatably installed on the passive fan (200). The handle (300) is located at one end of the passive fan (200) near the active fan (100), and is connected to the passive fan (200) via a pivot (310). The upper and lower ends are respectively connected by connecting rods (320) for pinning to the upper and lower ends of the door frame.

2. The frame-and-sash flush door according to claim 1, characterized in that, A torsion spring is also fitted on the rotating shaft (310) for driving the handle (300) to automatically reset; The passive fan (200) has a mounting groove corresponding to the handle (300) for hiding the handle (300).

3. The frame-and-sash flush door according to claim 1, characterized in that, The handle (300) is provided with a hinge shaft (301) corresponding to the two connecting rods (320); The two hinge axes (301) are symmetrically arranged about the rotating axis (310); The connecting rod (320) is provided with a matching strip-shaped through hole (321) corresponding to the hinge shaft (301).

4. The frame-and-sash flush door according to claim 1, characterized in that, Both the active fan (100) and the passive fan (200) are equipped with heat insulation strips (400) to form a thermal break structure; The passive fan (200) and the active fan (100) are respectively provided with sealing components at their respective ends that are close to each other, for sound insulation and heat preservation.

5. The frame-and-sash flush door according to claim 4, characterized in that, The sealing assembly includes a first sealing strip (410) located on the active fan (100) and a second sealing strip (420) located on the passive fan (200). The second sealing strip (420) is located at the broken bridge structure of the passive fan (200), near the door opening side corresponding to the contact surface of the first sealing strip (410); The first sealing strip (410) is located at the broken bridge structure of the active fan (100), and a protrusion is provided on the side away from the active fan (100) for sealing against the first sealing strip (410).

6. The frame-and-sash flush door according to claim 4, characterized in that, The sealing assembly also includes a third sealing strip (430) located on the active fan (100); The third sealing strip (430) is fixedly installed on the first extension (110) for sealing against the second inner part (220).

7. The frame-and-sash flush door according to claim 4, characterized in that, The sealing assembly also includes a fourth sealing strip (440) located on the passive fan (200); The fourth sealing strip (440) is fixedly installed on the second extension (210) for sealing against the first retractable part (120).

8. The frame-and-sash flush door according to claim 4, characterized in that, The active fan (100) is also equipped with a bumper lock (130); The latch (130) is located on the side of the broken bridge structure of the active fan (100) near the first extension (110); The passive fan (200) is provided with a corresponding latch box (230) corresponding to the latch (130).

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