Hidden door-in-door structure

Abstract

The utility model discloses a concealed door-in-door structure which comprises an outer door leaf, an inner door leaf, concealed hinges, a protective fence and door patterns. A ventilation window is formed in the middle of the outer door leaf, the ventilation window is sequentially provided with a door flower, a protective fence and an inner door leaf from outside to inside, the door flower and the protective fence are fixedly connected with the outer door leaf, one side of the inner door leaf is rotationally connected with one side wall of the ventilation window through a concealed hinge, and the other side of the inner door leaf is rotationally connected with the other side wall of the ventilation window through a concealed hinge. The other side of the ventilation window is matched with the other side wall of the ventilation window through a door lock structure; the hidden type hinge is used, so that the problem that a traditional hinge protrudes out of the surface of the door plate is solved, connection between the inner door leaf and the outer door leaf is more hidden, the surface of the door is smoother and smoother from the appearance, the overall attractiveness and simplicity of the door are improved, and the door can be better fused with various decoration styles.

Description

TECHNICAL FIELD

[0001] The utility model belongs to door leaf structure technical field, especially relate to a concealed door-in-door structure. BACKGROUND

[0002] The conventional single door will expose the indoor space to the outside world completely when being opened, which is not conducive to privacy protection and safety protection. The door-in-door structure can realize ventilation and air exchange by opening the small door. The small door is generally designed with more air holes or adopts a fence type structure, so that the circulation of indoor and outdoor air can be promoted under the premise of not affecting safety.

[0003] However, in the existing door-in-door structure, the hinge structure for rotating connection and cooperation between the small door and the large door usually protrudes from the surface of the door panel, the protruding hinge destroys the overall flatness and aesthetics of the surface of the door panel, and makes it look more conspicuous and difficult to integrate with the overall design style of the door.

[0004] Therefore, the present application provides a concealed door-in-door structure, aiming to improve the overall flatness and aesthetics of the door-in-door structure. SUMMARY

[0005] The utility model provides a concealed door-in-door structure, aiming to solve the problems pointed out in the above background technology.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A concealed door-in-door structure, comprising: an outer door leaf, an inner door leaf, a concealed hinge, a protective fence, and a door flower;

[0008] A ventilation window is formed in the middle part of the outer door leaf, the door flower, the protective fence, and the inner door leaf are sequentially arranged from outside to inside of the ventilation window, the door flower and the protective fence are fixedly connected with the outer door leaf, one side of the inner door leaf is rotatably connected with one side wall of the ventilation window through the concealed hinge, and the other side is cooperatively connected with the other side wall of the ventilation window through a door lock structure.

[0009] Further, the edge of the ventilation window is provided with a first cooperation surface, a second cooperation surface, and a mounting groove;

[0010] The first cooperation surface is perpendicular to the front and rear side walls of the outer door leaf, and is used for mounting the concealed hinge and cooperating with the circumferential side wall of the inner door leaf;

[0011] The second cooperation surface is perpendicular to the first cooperation surface and forms an internal right angle structure, and the second cooperation surface cooperates with the outer side panel of the inner door leaf;

[0012] The mounting groove is parallel to the front and rear panels of the outer door leaf, and is used for mounting the protective fence and the door flower.

[0013] Further, the edge of the protective fence is provided with a first mounting frame, a plurality of first mounting holes are formed in the first mounting frame, the edge of the door flower is provided with a second mounting frame, and a plurality of second mounting holes are formed in the second mounting frame;

[0014] The first mounting frame and the second mounting frame are matched with the mounting groove, the first mounting holes correspond to the positions at which the second mounting holes are formed, and threaded holes corresponding to the first mounting holes and the second mounting holes are formed in the bottom of the mounting groove.

[0015] Further, the concealed hinge comprises two hinge boxes, the two hinge boxes are fixedly connected with the outer door leaf and the inner door leaf respectively, mounting openings are formed in the middle portions of the hinge boxes, a first leaf plate and a second leaf plate are arranged between the two mounting openings, and sliding grooves are arranged on the upper and lower side walls of the mounting openings;

[0016] One end of the first leaf plate is rotationally connected with the upper and lower side walls of the mounting opening of the hinge box, the other end is slidably connected with the sliding groove in the mounting opening of the other hinge box through a sliding rod, the second leaf plate is symmetrically arranged with the first leaf plate, and the middle portions of the first leaf plate and the second leaf plate are rotationally connected.

[0017] Further, a clamping groove is formed in the side of the first mounting frame adjacent to the inner door leaf, and a first sealing strip is clamped in the clamping groove.

[0018] Further, a second sealing strip is arranged on the second matching surface.

[0019] Further, the second sealing strip comprises a matching portion and an arc-shaped portion, one end of the arc-shaped portion is fixedly connected with the matching portion, the other end is arranged in a spaced manner with the matching portion, thereby forming an avoiding opening, and the avoiding opening is located at the end of the second sealing strip away from the first matching surface.

[0020] Further, an obscuring flange is arranged at the edge of the inner side panel of the inner door leaf, the obscuring flange is used for obscuring the door gap and avoiding the outer door leaf during rotation of the inner door leaf.

[0021] Compared with the prior art, the utility model has the following technical effects:

[0022] 1. The concealed door-in-door structure avoids the problem that the traditional hinge protrudes from the surface of the door plate by using the concealed hinge, the connection between the inner door leaf and the outer door leaf is more concealed, the surface of the door is more flat and smooth from the appearance, the overall appearance and simplicity of the door are improved, and the door can be better integrated with various decoration styles.

[0023] 2. The utility model discloses a hidden door structure's outer door leaf middle part is provided with ventilation window, and is provided with door flower, protective fence and inner door leaf in proper order. When needing ventilation, can open the inner door leaf, and air passes through ventilation window, protective fence and enters the indoor, realizes good ventilation effect. Meanwhile, protective fence can play the blocking effect, prevents the foreign matter of outside from entering the indoor, guarantees the safety in the room, even if the inner door leaf is opened, can prevent children or pet accidental falling or running out of the outdoor. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the indoor side schematic view of a kind of hidden door structure of the utility model described;

[0025] Figure 2 It is the outdoor side schematic view of a kind of hidden door structure of the utility model described;

[0026] Figure 3 It is the schematic view of hidden hinge structure of a kind of hidden door structure of the utility model described;

[0027] Figure 4 It is the schematic view of protective fence structure of a kind of hidden door structure of the utility model described;

[0028] Figure 5 It is the schematic view of door flower structure of a kind of hidden door structure of the utility model described;

[0029] Figure 6 It is the schematic view of the overall cooperation structure of a kind of hidden door structure of the utility model described;

[0030] Figure 7 It is the schematic view of ventilation window structure of a kind of hidden door structure of the utility model described;

[0031] Figure 8 It is the schematic view of the second sealing strip structure of a kind of hidden door structure of the utility model described.

[0032] In the drawing:

[0033] 1, outer door leaf;101, first cooperation face;102, second cooperation face;103, installation slot;

[0034] 2, inner door leaf;201, shielding flange;

[0035] 3, hidden hinge;301, page box;302, first page plate;303, second page plate;304, sliding slot;

[0036] 4, protective fence;401, first installation frame;402, first installation hole;

[0037] 5, door flower; 501, second mounting frame; 502, second mounting hole;

[0038] 6, first sealing strip;

[0039] 7, second sealing strip; 701, fitting part; 702, arc part; 703, avoiding opening. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the utility model more clear, the following will combine the specific embodiment of the application, and refer to the drawings, the technical scheme of the utility model is clearly and completely described.

[0041] As shown in Figures 1-2 A concealed door-in-door structure, comprising: an outer door leaf 1, an inner door leaf 2, a concealed hinge 3, a protective fence 4 and a door flower 5.

[0042] The outer door leaf 1 is provided with a ventilation window in the middle, the door flower 5, the protective fence 4 and the inner door leaf 2 are sequentially arranged from outside to inside of the ventilation window, the door flower 5 and the protective fence 4 are fixedly connected with the outer door leaf 1, one side of the inner door leaf 2 is rotatably connected with one side wall of the ventilation window through the concealed hinge 3, and the other side is matched with the other side wall of the ventilation window through a door lock structure.

[0043] The use of the concealed hinge 3 avoids the problem that the traditional hinge protrudes from the surface of the door panel, so that the connection between the inner door leaf 2 and the outer door leaf 1 is more concealed, the surface of the door is more flat and smooth from the appearance, the overall appearance and simplicity of the door are improved, and the door can be better integrated with various decoration styles.

[0044] The outer door leaf 1 is provided with a ventilation window in the middle, the door flower 5, the protective fence 4 and the inner door leaf 2 are sequentially arranged from outside to inside of the ventilation window, the door flower 5 and the protective fence 4 are fixedly connected with the outer door leaf 1, one side of the inner door leaf 2 is rotatably connected with one side wall of the ventilation window through the concealed hinge 3, and the other side is matched with the other side wall of the ventilation window through a door lock structure.

[0045] As shown in Figures 6-7 The edge of the ventilation window is provided with a first matching surface 101, a second matching surface 102 and a mounting groove 103;

[0046] The first matching surface 101 is perpendicular to the front and rear side walls of the outer door leaf 1, and is used for mounting the concealed hinge 3 and matching with the circumferential side wall of the inner door leaf 2;

[0047] The second matching surface 102 is perpendicular to the first matching surface 101 and forms an internal right angle structure, and the second matching surface 102 matches with the outer side panel of the inner door leaf 2.

[0048] The installation groove 103 is parallel to the front and rear panels of the outer door leaf 1, and is used to install the protective fence 4 and the door flower 5.

[0049] By reasonably arranging the first fitting surface 101, the second fitting surface 102 and the installation groove 103, the reasonable layout between the components of the ventilation window can be ensured. The protective fence 4 and the door flower 5 are installed in the installation groove 103, so that the installation of the protective fence 4 and the door flower 5 is more convenient and accurate, and the construction personnel can directly embed them into the installation groove 103 for positioning.

[0050] As shown in Figures 4-7 The edge of the protective fence 4 is provided with a first installation frame 401, and a plurality of first installation holes 402 are formed in the first installation frame 401. The edge of the door flower 5 is provided with a second installation frame 501, and a plurality of second installation holes 502 are formed in the second installation frame 501.

[0051] The first installation frame 401 and the second installation frame 501 are matched with the installation groove 103, the first installation hole 402 corresponds to the position where the second installation hole 502 is formed, and a threaded hole corresponding to the first installation hole 402 and the second installation hole 502 is formed in the bottom of the installation groove 103.

[0052] The first installation frame 401 at the edge of the protective fence 4 and the second installation frame 501 at the edge of the door flower 5 are matched with the installation groove 103, which provides a clear positioning reference for the installation of the protective fence 4 and the door flower 5. The installation personnel only needs to align the first installation frame 401 and the second installation frame 501 with the installation groove 103, so as to quickly determine the installation position of the protective fence 4 and the door flower 5, without the need for repeated adjustment, thereby greatly improving the installation efficiency.

[0053] The standardized design of the first installation hole 402 and the second installation hole 502 makes the protective fence 4 and the door flower 5 have certain universality and compatibility. If it is necessary to replace the protective fence 4 or the door flower 5 of different styles or specifications, as long as the size of the first installation frame 401 and the second installation frame 501 and the position of the installation hole match the existing installation groove 103, the replacement can be directly performed, thereby providing more choices and convenience for the user.

[0054] As shown in Figure 3 The concealed hinge 3 comprises two hinge boxes 301, the two hinge boxes 301 are respectively fixedly connected with the outer door leaf 1 and the inner door leaf 2, a mounting opening is formed in the middle of the hinge box 301, a first hinge plate 302 and a second hinge plate 303 are arranged between the two mounting openings, and a sliding groove 304 is arranged on the upper and lower sidewalls of the mounting opening.

[0055] One end of the first page plate 302 is rotationally connected with the upper and lower side walls of the mounting port of the page box 301, and the other end is slidingly connected with the sliding groove 304 in the mounting port of another page box 301 through a slide rod, and the second page plate 303 is symmetrically arranged with the first page plate 302, and the middle parts of the first page plate 302 and the second page plate 303 are rotationally connected.

[0056] As shown in Figure 6 The first mounting frame 401 is provided with a clamping groove on the side adjacent to the inner door leaf 2, and the first sealing strip 6 is clamped in the clamping groove.

[0057] When the inner door leaf is closed, the first sealing strip 6 fills the gap between the first mounting frame 401 and the inner door leaf 2, effectively preventing dust, rain, mosquitoes and the like from entering the room from the gap, and when the inner door leaf 2 is closed, the first sealing strip 6 can play a buffering role, reducing the direct collision and friction between the inner door leaf 2 and the first mounting frame 401. This not only reduces the noise generated when closing the door, but also avoids damage to the inner door leaf 2 and the first mounting frame 401 due to collision, prolonging the service life of the door.

[0058] As shown in Figure 7 The second sealing strip 7 is arranged on the second matching surface 102.

[0059] As shown in Figure 8 The second sealing strip 7 comprises a matching part 701 and an arc-shaped part 702, one end of the arc-shaped part 702 is fixedly connected with the matching part 701, and the other end is arranged in a spaced manner with the matching part 701 to form an avoiding port 703, and the avoiding port 703 is located at the end of the second sealing strip 7 away from the first matching surface 101.

[0060] The existence of the arc-shaped part 702 makes the second sealing strip 7 have a certain elasticity. During the closing process, the arc-shaped part 702 will be deformed due to the extrusion of the inner door leaf 2, thereby better adapting to possible unevenness or size error between the inner door leaf 2 and the second matching surface 102, and further enhancing the sealing effect.

[0061] As shown in Figure 6 The edge of the inner side panel of the inner door leaf 2 is provided with a shielding flange 201, and the shielding flange 201 is used for shielding the door gap and avoiding the outer door leaf 1 during the rotation of the inner door leaf 2.

[0062] The shielding flange 201 can shield the door gap between the inner door leaf 2 and the outer door leaf 1, avoid direct exposure of the door gap, make the overall appearance of the door more simple and unified, and improve the overall aesthetic degree of the door. No matter from which angle in the room, the visual effect of the door is more smooth and generous.

[0063] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the inventive concept, a number of modifications and improvements can be made, and these all belong to the protection scope of the present application.

Claims

1. A concealed door-in-door structure, characterized by, Include: The outer door leaf (1), inner door leaf (2), hidden hinge (3), protective fence (4) and door flower (5); The middle part of the outer door leaf (1) is provided with a ventilation window, the ventilation window is provided with a door flower (5), a protective fence (4) and an inner door leaf (2) from outside to inside, the door flower (5) and the protective fence (4) are fixedly connected with the outer door leaf (1), one side of the inner door leaf (2) is rotatably connected with one side wall of the ventilation window through a hidden hinge (3), and the other side is matched with the other side wall of the ventilation window through a door lock structure.

2. A concealed door-in-door structure according to claim 1, characterized in that, The edge of the ventilation window is provided with a first matching surface (101), a second matching surface (102) and a mounting groove (103); The first matching surface (101) is perpendicular to the front and rear side walls of the outer door leaf (1), used for mounting the hidden hinge (3) and matching with the circumferential side wall of the inner door leaf (2); The second matching surface (102) is perpendicular to the first matching surface (101) and forms an internal right angle structure, and the second matching surface (102) is matched with the outer side panel of the inner door leaf (2); The mounting groove (103) is parallel to the front and rear panels of the outer door leaf (1), used for mounting the protective fence (4) and the door flower (5).

3. A concealed door-in-door structure according to claim 2, characterized in that, The edge of the protective fence (4) is provided with a first mounting frame (401), a plurality of first mounting holes (402) are formed in the first mounting frame (401), the edge of the door flower (5) is provided with a second mounting frame (501), and a plurality of second mounting holes (502) are formed in the second mounting frame (501); The first mounting frame (401) and the second mounting frame (501) are matched with the mounting groove (103), the first mounting hole (402) corresponds to the opening position of the second mounting hole (502), and a threaded hole corresponding to the first mounting hole (402) and the second mounting hole (502) is formed in the bottom of the mounting groove (103).

4. The concealed door-in-door structure according to claim 1, characterized in that, The hidden hinge (3) comprises: two hinge boxes (301), the hinge boxes (301) are fixedly connected with the outer door leaf (1) and the inner door leaf (2) respectively, the middle part of the hinge box (301) is provided with a mounting port, a first leaf plate (302) and a second leaf plate (303) are arranged between the two mounting ports, and slide grooves (304) are arranged on the upper and lower side walls of the mounting port; One end of the first leaf plate (302) is rotatably connected with the upper and lower side walls of the mounting port of the hinge box (301), the other end is slidably connected with the slide groove (304) in the mounting port of the other hinge box (301) through a slide rod, the second leaf plate (303) is symmetrically arranged with the first leaf plate (302), and the middle parts of the first leaf plate (302) and the second leaf plate (303) are rotatably connected.

5. The concealed door-in-door structure according to claim 3, characterized in that, The side adjacent to the inner door leaf (2) of the first mounting frame (401) is provided with a clamping groove, and the first sealing strip (6) is clamped on the clamping groove.

6. The concealed door-in-door structure according to claim 2, characterized in that, The second sealing strip (7) is arranged on the second matching surface (102).

7. A concealed door-in-door structure according to claim 6, characterized in that, The second sealing strip (7) comprises a fitting part (701) and an arc-shaped part (702), one end of the arc-shaped part (702) is fixedly connected with the fitting part (701), the other end is arranged in a spaced manner with the fitting part (701), forming an avoiding opening (703), the avoiding opening (703) is located at one end of the second sealing strip (7) away from the first fitting surface (101).

8. The concealed door-in-door structure according to claim 1, characterized in that, The edge of the inner side panel of the inner door leaf (2) is provided with a shielding flange (201), the shielding flange (201) is used for shielding the door gap, and avoiding the outer door leaf (1) during rotation of the inner door leaf (2).

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