Unitary double-inswinging door window structure

Abstract

The utility model provides a kind of unit formula double inner opening door window structure, comprising: door and window outer frame, door and window inner leaf, screen window inner leaf, first door and window connecting component and second door and window connecting component;The outdoor side of the door and window inner leaf is connected with the outdoor side of the door and window outer frame by the screen window inner leaf;The side of the door and window outer frame and the screen window inner leaf closest to outdoor side is located in the same plane;The side of the door and window outer frame and the door and window inner leaf closest to indoor side is located in the same plane;The first door and window connecting component includes: groove auxiliary frame and first auxiliary frame adapter;The second door and window connecting component includes: hook auxiliary frame, auxiliary frame connecting piece and second auxiliary frame adapter.The utility model sets the overall inner and outer side of double inner opening door window structure as a plane, then combines the mounting structure of hook auxiliary frame and groove auxiliary frame, solves the structural key problem that double inner opening door window structure installation strength and precision are unstable and unreliable.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, specifically to a unit-type double inward opening door and window structure, and more particularly to a unit-type ultra-narrow concealed C-groove double inward opening door and window structure. Background Technology

[0002] In traditional door and window construction, the assembly of the outer frame, inner sash, and screen is often rather crude. The outer frame usually protrudes beyond the inner sash and screen, resulting in noticeable unevenness between the outer frame, inner sash, and screen. The sides of the various components of the door and window are not on the same plane, leading to uneven gaps, which affects the sealing performance of the door and window, and also disrupts the overall smooth lines of the door and window, creating a complicated and irregular visual impression and affecting the overall aesthetics. Utility Model Content

[0003] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a unit-type double inward opening door and window structure.

[0004] According to the present invention, a unit-type double-inward-opening door and window structure includes: a door and window outer frame, a door and window inner sash, a screen inner sash, a first door and window connecting component, and a second door and window connecting component.

[0005] The exterior side of the inner sash of the door / window is connected to the exterior side of the outer frame of the door / window via the inner sash of the screen window.

[0006] The outer frame of the door and window and the inner sash of the screen window, with their sides closest to the outside, are located in the same plane;

[0007] The outer frame of the door and window and the inner sash of the door and window, with the sides closest to the interior, are located in the same plane;

[0008] The first door and window connection assembly includes: an inlet subframe and a first subframe adapter; the second door and window connection assembly includes: a hook subframe, a subframe connector, and a second subframe adapter.

[0009] The slotted subframe is embedded in the wall at the lower end of the door and window outer frame for installation. The first subframe adapter is connected to the slotted subframe. The lower end of the door and window outer frame is connected to the first subframe adapter. The lower end of the door and window is connected to the lower end of the door and window outer frame through the inner sash of the door and window.

[0010] The hook subframe is embedded in the wall at the upper end of the door and window outer frame for installation. The subframe connector is connected to the hook subframe. The second subframe adapter is connected to the subframe connector. The upper end of the door and window outer frame is connected to the second subframe adapter. The upper end of the door and window is connected to the upper end of the door and window outer frame through the inner sash of the door and window.

[0011] Preferably, the door and window outer frame includes: an outer profile of the door and window outer frame and an inner profile of the door and window outer frame connected to each other;

[0012] The upper end of the outer profile of the door and window frame is connected to the outer end of the second subframe adapter, and the lower end of the outer profile of the door and window frame is connected to the outer end of the first subframe adapter.

[0013] The upper end of the inner profile of the outer frame of the door and window is connected to the inner end of the second subframe adapter, and the lower end of the inner profile of the outer frame of the door and window is connected to the inner end of the first subframe adapter.

[0014] Preferably, the inner sash of the door / window includes: an outer profile of the inner sash and an inner profile of the inner sash connected together;

[0015] The outer profile of the outer frame of the door and window is connected to the outer profile of the inner sash of the door and window through the inner sash of the screen window, and the inner sash of the screen window is located on the side of the outer profile of the inner sash of the door and window closer to the outside; the inner profile of the outer frame of the door and window is connected to the inner profile of the inner sash of the door and window.

[0016] The outer profile of the inner sash of the door and window is connected to the outer side of the door and window, and the inner profile of the inner sash of the door and window is connected to the inner side of the door and window.

[0017] The outer profile of the door and window frame and the inner sash of the screen window, which are closest to the outside side, are located in the same plane;

[0018] The inner side profiles of the outer frame of the door and window and the inner side profiles of the inner sash of the door and window, which are closest to the indoor side, are located in the same plane.

[0019] Preferably, the lower end of the door and window outer frame is provided with a first door and window groove structure, and the lower end of the door and window outer frame is snapped onto the first subframe adapter through the first door and window groove structure;

[0020] The first subframe adapter is provided with a first subframe slot structure, and the first subframe adapter is snapped onto the slotted subframe through the first subframe slot structure.

[0021] Preferably, the upper end of the door and window outer frame is provided with a second door and window groove structure, and the upper end of the door and window outer frame is snapped onto the second subframe adapter through the second door and window groove structure;

[0022] The subframe connector is provided with a first connecting slot structure and a second connecting slot structure. The subframe connector is snapped onto the second subframe adapter through the first connecting slot structure, and the subframe connector is snapped onto the hook subframe through the second connecting slot structure.

[0023] Preferably, the subframe connector includes: an inner connecting structure, an outer connecting structure, and connecting bolts;

[0024] The inner connecting structure and the outer connecting structure are connected and fixed by the connecting bolts;

[0025] The first connecting slot structure is formed between the lower end of the inner connecting structure and the lower end of the outer connecting structure.

[0026] The second connecting slot structure is formed between the upper end of the inner connecting structure and the upper end of the outer connecting structure.

[0027] Preferably, the lower end and the upper end of the door and window outer frame are the lower side and the upper side of the door and window outer frame, respectively.

[0028] Preferably, the unitized ultra-narrow concealed inward-opening door and window structure further includes: a third door and window connecting component and a fourth door and window connecting component;

[0029] The first side end of the door and window frame is connected to the wall through the third door and window connecting component, and the third door and window connecting component has the same structure as the first door and window connecting component or the second door and window connecting component.

[0030] The second side end of the outer frame of the door and window is connected to the wall through the fourth door and window connecting component, and the fourth door and window connecting component has the same structure as the first door and window connecting component or the second door and window connecting component.

[0031] The first and second side ends of the door and window outer frame are two opposite sides of the door and window outer frame, respectively.

[0032] The lower end, upper end, first side end, and second side end of the door and window outer frame are the four sides of the door and window outer frame, respectively.

[0033] Preferably, the third door and window connecting assembly has the same structure as the first door and window connecting assembly, and the fourth door and window connecting assembly has the same structure as the second door and window connecting assembly;

[0034] The slotted subframe for installing the lower end of the door and window outer frame and the slotted subframe for installing the first side end of the door and window outer frame form a first L-shaped structure.

[0035] The hook attachment frame used for mounting the upper end of the door and window outer frame and the hook attachment frame used for mounting the second side end of the door and window outer frame form a second L-shaped structure;

[0036] The first L-shaped structure and the second L-shaped structure are combined to form a rectangular structure surrounding the perimeter of the door and window frame.

[0037] Preferably, the outer profile of the door / window frame and the inner profile of the door / window frame are connected by a thermal insulation strip of the door / window frame;

[0038] The outer profile of the inner sash of the door and window and the inner profile of the inner sash of the door and window are connected by the thermal insulation strip of the inner sash of the door and window.

[0039] The outer profile of the door and window frame is connected to the inner sash of the screen window by a first sealing strip, the inner sash of the screen window is connected to the outer profile of the inner sash of the door and window by a second sealing strip, and the outer profile of the inner sash of the door and window is connected to the outer side of the door and window by a third sealing strip.

[0040] The inner profile of the outer frame of the door and window is connected to the inner profile of the inner sash of the door and window through a fourth sealing strip, and the inner profile of the inner sash of the door and window is connected to the inner side of the door and window through a fifth sealing strip.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] 1. This utility model uses slotted subframes and hook subframes to install doors and windows, and sets the outer frame of the door and window and the inner sash of the screen closest to the outside and the inner sash of the door and window closest to the inside on the same plane. This solves the problem of uneven gaps affecting the sealing performance of doors and windows, and also solves the problem of uneven and uncoordinated appearance of doors and windows, making doors and windows look neater and more beautiful both inside and outside.

[0043] 2. The upper end of the door and window outer frame of this utility model is connected to the hook sub-frame through a hook-type structure, and the lower end of the door and window outer frame is connected to the slot sub-frame through a slot-type structure, which facilitates the installation, disassembly, replacement or repair of the door and window. At the same time, it can meet the fixed connection strength of the door and window, and form a sealed building component that integrates heat preservation, heat insulation, waterproofing, positioning and connection. Attached Figure Description

[0044] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0045] Figure 1 Schematic diagram of the upper connection of the unit-type double inward opening door and window structure Figure 1 ;

[0046] Figure 2 Schematic diagram of the lower part of the unit-type double inward-opening door and window structure Figure 1 ;

[0047] Figure 3 Schematic diagram of the upper connection of the unit-type double inward opening door and window structure Figure 2 ;

[0048] Figure 4 Schematic diagram of the lower part of the unit-type double inward-opening door and window structure Figure 2 .

[0049] The diagram shows:

[0050] Door and window outer frame 1, outer connecting structure 601

[0051] 101 Outer profile of door and window frame and 602 Inner connecting structure

[0052] 102 Inner profile of door and window outer frame, 7 Second subframe adapter

[0053] 103 thermal break strips for door and window frames; 8 connecting bolts

[0054] 2. Lower part of the wall of the inner door / window sash 9.

[0055] 201 Outer profile of inner sash of door and window; 10 visible surface of inner side of outer frame.

[0056] 202 Inner profile of the inner sash of the door and window; 11 Inner visible surface of the inner sash.

[0057] 203 Thermal insulation strip for inner sash of doors and windows; 12 visible surface on outer side of outer frame.

[0058] Inlet frame 3, visible exterior side of inner fan 13

[0059] First subframe adapter 4, concealed runner 14

[0060] Hooks and frames 5; Inner sash of screen window 15

[0061] Subframe connector 6; Outdoor visible surface groove 16 Detailed Implementation

[0062] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0063] Example 1

[0064] like Figures 1 to 4As shown, this embodiment provides a unit-type double-inward-opening door and window structure, including: a door and window outer frame 1, a door and window inner sash 2, a screen inner sash 15, a first door and window connecting assembly, and a second door and window connecting assembly; the outdoor side of the door and window inner sash 2 is connected to the outdoor side of the door and window outer frame 1 via the screen inner sash 15; the sides of the door and window outer frame 1 and the screen inner sash 15 closest to the outdoor side are located in the same plane; the sides of the door and window outer frame 1 and the door and window inner sash 2 closest to the indoor side are located in the same plane; the first door and window connecting assembly includes: an inlet subframe 3 and a first subframe adapter 4; the second door and window connecting assembly includes: a hook subframe 5 and a subframe connector 6. And the second subframe adapter 7; the slotted subframe 3 is embedded in the wall 9 at the lower end of the door and window outer frame 1, the first subframe adapter 4 is connected to the slotted subframe 3, the lower end of the door and window outer frame 1 is connected to the first subframe adapter 4, and the lower end of the door and window is connected to the lower end of the door and window outer frame 1 through the inner sash 2; the hook subframe 5 is embedded in the wall 9 at the upper end of the door and window outer frame 1, the subframe connector 6 is connected to the hook subframe 5, the second subframe adapter 7 is connected to the subframe connector 6, the upper end of the door and window outer frame 1 is connected to the second subframe adapter 7, and the upper end of the door and window is connected to the upper end of the door and window outer frame 1 through the inner sash 2.

[0065] The lower end of the door / window outer frame 1 is provided with a first door / window groove structure, and the lower end of the door / window outer frame 1 is snapped onto the first sub-frame adapter 4 through the first door / window groove structure; the first sub-frame adapter 4 is provided with a first sub-frame groove structure, and the first sub-frame adapter 4 is snapped onto the slotted sub-frame 3 through the first sub-frame groove structure. The upper end of the door / window outer frame 1 is provided with a second door / window groove structure, and the upper end of the door / window outer frame 1 is snapped onto the second sub-frame adapter 7 through the second door / window groove structure; the sub-frame connector 6 is provided with a first connecting groove structure and a second connecting groove structure, and the sub-frame connector 6 is snapped onto the second sub-frame adapter 7 through the first connecting groove structure, and the sub-frame connector 6 is snapped onto the hook sub-frame 5 through the second connecting groove structure. The subframe connector 6 includes an inner connecting structure 602, an outer connecting structure 601, and connecting bolts 8; the inner connecting structure 602 and the outer connecting structure 601 are connected and fixed by the connecting bolts 8; a first connecting groove structure is formed between the lower end of the inner connecting structure 602 and the lower end of the outer connecting structure 601; a second connecting groove structure is formed between the upper end of the inner connecting structure 602 and the upper end of the outer connecting structure 601. The lower end and upper end of the door and window outer frame 1 are the lower side and upper side of the door and window outer frame 1, respectively.

[0066] The door and window outer frame 1 includes: an outer profile 101 and an inner profile 102 connected to each other; the upper end of the outer profile 101 is connected to the outer end of the second subframe adapter 7, and the lower end of the outer profile 101 is connected to the outer end of the first subframe adapter 4; the upper end of the inner profile 102 is connected to the inner end of the second subframe adapter 7, and the lower end of the inner profile 102 is connected to the inner end of the first subframe adapter 4.

[0067] The inner sash 2 of the door and window includes: an outer profile 201 and an inner profile 202 of the inner sash connected to each other; the outer profile 101 of the outer frame of the door and window is connected to the outer profile 201 of the inner sash of the door and window through an inner screen sash 15, the inner screen sash 15 being located on the side of the outer profile 201 of the inner sash of the door and window closer to the outside; the inner profile 102 of the outer frame of the door and window is connected to the inner profile 202 of the inner sash of the door and window; the outer profile 201 of the inner sash of the door and window is connected to the outer side of the door and window, and the inner profile 202 of the inner sash of the door and window is connected to the inner side of the door and window; the outer profile 101 of the outer frame of the door and window and the inner profile 15 of the screen closest to the outside are located in the same plane; the inner profile 102 of the outer frame of the door and window and the inner profile 202 of the inner sash of the door and window are closest to the inside are located in the same plane.

[0068] The outer profile 101 and the inner profile 102 of the outer frame of the door and window are connected by the thermal insulation strip 103 of the outer frame of the door and window; the outer profile 201 and the inner profile 202 of the inner sash of the door and window are connected by the thermal insulation strip 203 of the inner sash of the door and window; the outer profile 101 of the outer frame of the door and window is connected to the inner sash 15 of the screen window by a first sealing strip, the inner sash 15 of the screen window is connected to the outer profile 201 of the inner sash of the door and window by a second sealing strip, the outer profile 201 of the inner sash of the door and window is connected to the outer side of the door and window by a third sealing strip; the inner profile 102 of the outer frame of the door and window is connected to the inner profile 202 of the inner sash of the door and window by a fourth sealing strip, and the inner profile 202 of the inner sash of the door and window is connected to the inner side of the door and window by a fifth sealing strip.

[0069] The unit-type ultra-narrow concealed inward-opening door and window structure also includes: a third door and window connecting component and a fourth door and window connecting component; the first side end of the door and window outer frame 1 is connected to the wall 9 through the third door and window connecting component, and the third door and window connecting component has the same structure as the first door and window connecting component or the second door and window connecting component; the second side end of the door and window outer frame 1 is connected to the wall 9 through the fourth door and window connecting component, and the fourth door and window connecting component has the same structure as the first door and window connecting component or the second door and window connecting component; the first side end and the second side end of the door and window outer frame 1 are respectively two opposite sides of the door and window outer frame 1; the lower end, upper end, first side end and second side end of the door and window outer frame 1 are respectively four sides of the door and window outer frame 1.

[0070] The third door and window connecting component has the same structure as the first door and window connecting component, and the fourth door and window connecting component has the same structure as the second door and window connecting component. The groove subframe 3 for installing the lower end of the door and window outer frame 1 and the groove subframe 3 for installing the first side end of the door and window outer frame 1 constitute a first L-shaped structure. The hook subframe 5 for installing the upper end of the door and window outer frame 1 and the hook subframe 5 for installing the second side end of the door and window outer frame 1 constitute a second L-shaped structure. The first L-shaped structure and the second L-shaped structure are combined to form a rectangular structure surrounding the perimeter of the door and window outer frame 1.

[0071] The width of the visible surface 10 on the inner side of the outer frame of the door and window frame 1 is less than 10mm, and the width of the visible surface 12 on the outer side of the outer frame of the door and window frame 1 is less than 53mm.

[0072] The width of the inner side visible surface 11 of the inner sash 2 of the door and window is less than 52mm, and the width of the outer side visible surface 13 of the inner sash 2 of the door and window is less than or equal to 10mm. The width of the outer side visible surface groove 16 formed between the outer frame of the door and window and the inner sash of the screen is less than or equal to 5.5mm.

[0073] A concealed groove 14 is provided on the visible surface 12 of the outer side of the door and window frame 1.

[0074] In this embodiment, the opening end of the first door and window groove structure of the outer frame 1 is provided with an L-shaped hook structure, and the first subframe adapter 4 is provided with a protruding structure that engages with the L-shaped hook structure. The opening end of the first subframe groove structure of the first subframe adapter 4 is provided with an L-shaped hook structure, and the groove subframe 3 is provided with a protruding structure that engages with the L-shaped hook structure.

[0075] In this embodiment, the opening end of the second door / window groove structure of the outer frame 1 is provided with an L-shaped hook structure, and the second subframe adapter 7 is provided with a protrusion structure for hooking with the L-shaped hook structure. The opening end of the first connecting groove structure of the subframe connector 6 is provided with an L-shaped hook structure, and the second subframe adapter 7 is provided with a groove structure for hooking with the L-shaped hook structure. The opening end of the second connecting groove structure of the subframe connector 6 is provided with an L-shaped hook structure, and the hook subframe 5 is provided with a groove structure for hooking with the L-shaped hook structure.

[0076] In this embodiment, the first side end and the second side end are the right side and the left side of the door and window outer frame 1, respectively.

[0077] In this embodiment, the third door and window connecting component has the same structure as the first door and window connecting component, and the fourth door and window connecting component has the same structure as the second door and window connecting component. The slotted subframe 3 at the lower end and the slotted subframe 3 at the first side end form a first L-shaped structure; the hook subframe 5 at the upper end and the hook subframe 5 at the second side end form a second L-shaped structure; the first L-shaped structure and the second L-shaped structure are combined to form a rectangular structure surrounding the perimeter of the door and window outer frame 1. In this embodiment, the first side end is the right side of the door and window outer frame 1, and the second side end is the left side of the door and window outer frame 1. In other embodiments, the first side end can be the left side of the door and window outer frame 1, and the second side end can be the right side of the door and window outer frame 1.

[0078] Example 2

[0079] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0080] This embodiment provides a unit-type ultra-narrow concealed C-groove double inward opening door and window structure, as well as the installation connection structure design and installation method between the door / window and the wall.

[0081] This mainly includes: the design and installation method of the connection structure between the unitized door and window subframe structure and the surrounding wall, and the installation connection structure between the door and window outer frame and the door and window subframe of the unitized ultra-narrow concealed C-groove double inward opening door and window structure, hereinafter collectively referred to as the ultra-narrow double inward opening door and window system.

[0082] This embodiment addresses the long-standing industry problems of unclear job boundaries, responsibilities, and economic liabilities between construction and window / door installation companies. The ultra-narrow double-inward-opening window / door system simultaneously satisfies the versatility of both pre-installation and post-installation methods for windows and doors in engineering projects, significantly improving the quality of building window and door products. It effectively achieves an integrated structural design of the existing window / door frame cavity and the cavity materials pre-installed in the building wall, while maintaining the versatility of traditional building windows and doors.

[0083] Compared to traditional installation methods, the ultra-narrow double inward-opening window and door system is primarily characterized by the high-precision structural connection between the window and door subframes embedded in the wall and the outer frame of the ultra-narrow window and door system. Specifically, modern window and door structures require increasingly larger cross-sectional widths due to higher energy-saving requirements, while the visible width of the windows and doors is decreasing. This contradictory structural relationship places higher demands on the design and installation of windows and doors. The ultra-narrow window and door sashes are highly stable due to the glass structure on all four sides. The outer frame of the ultra-narrow double inward-opening window and door, when connected using traditional subframe construction methods, suffers from a smaller visible width. The small overall thickness of the corresponding materials makes it impossible to achieve the structural strength of doors and windows and the high-precision sealing connection between door and window sashes and frames. Therefore, this ultra-narrow double inward opening door and window system not only solves this problem, but also solves the problem of C-groove hardware channels for ultra-narrow screens (traditional ultra-narrow double inward opening doors and windows, glass sashes and screens are C-groove + U-groove, and the U-groove has the defects of inconvenient and unsightly hardware installation), as well as the screen function to prevent mosquitoes and insects and the hidden drainage channel (this drainage method is not only beautiful but also has a good drainage effect, while traditional doors and windows are mostly exposed sealed drainage). It is a multi-functional door and window system.

[0084] This design saves significant amounts of materials and labor, achieving a high-strength connection between the ultra-narrow door / window structure and the surrounding walls, ensuring absolute waterproofing, secure installation, and simple operation. This embodiment integrates aesthetics, safety, waterproofing, insulation, energy saving, environmental protection, comfort, and efficient installation, revolutionizing the traditional installation methods for ultra-narrow doors and windows in recent years. It will promote the practicality and diversity of my country's door and window industry, yielding positive social and economic benefits.

[0085] The ultra-narrow double inward opening window and door system in this embodiment solves the key structural problem of unstable and unreliable installation strength and precision of the ultra-narrow double inward opening window and door frame and the ultra-narrow double inward opening subframe system pre-embedded in the building through a special connection design between the profile outer frame and the ultra-narrow double inward opening subframe system.

[0086] The outer frame 1 of the door and window features a unitized, ultra-narrow concealed C-groove double inward opening design. Specifically, the visible surface 10 of the inner side of the outer frame 1 is less than 10mm, the visible surface 12 of the outer frame 1 is less than 53mm, the visible surface 11 of the inner sash of the door and window is less than 52mm, and the visible surface 13 of the inner sash of the unitized, ultra-narrow screen sash is less than or equal to approximately 10mm. The visible surface groove 15 of the outer side of the door and window sash and the screen sash is less than or equal to approximately 5.5mm, and there is a concealed groove 14 with the unitized, ultra-narrow concealed C-groove double inward opening door and window outer frame.

[0087] The unit-type ultra-narrow concealed C-groove double inward opening door and window is based on its outermost groove and extends towards the wall connection direction. By making special designs layer by layer for the installation requirements of the door and window outer frame in the door and window installation specifications and the installation system attached to the wall, and guiding the related construction procedures, it can completely solve the various structural problems of the connection between the outer frame of the ultra-narrow double inward opening door and window and the wall.

[0088] Ultra-narrow double inward opening window and door system: A new design and installation method for the matching of the groove of the ultra-narrow double inward opening window and door frame profile (i.e., window and door frame 1) and the groove of the unit-type groove-entry sub-frame profile (hereinafter referred to as groove-entry sub-frame 3) and unit-type hook sub-frame profile (hereinafter referred to as hook sub-frame 5). The groove-entry sub-frame 3 and hook sub-frame 5 are fixed in the wall 9 of the building construction according to the building construction requirements before the window and door are installed. The design and construction principle of the hook sub-frame profile of the ultra-narrow double inward opening window and door system is basically the same as that of the ultra-narrow double inward opening window and door frame profile and one side of the adjacent two side frames. The design and construction principle of the groove-entry sub-frame profile at the bottom of the ultra-narrow double inward opening window and door system is basically the same as that of one side of the adjacent two side frames. The upper, lower, left and right four sides of the window and door frame of the ultra-narrow double inward opening window and door system are designed with the contact installation part cross-section structure of the hook sub-frame, groove sub-frame and the outer frame profile, so that it has the function of a multi-functional integrated ultra-narrow double inward opening window and door system.

[0089] The upper hook subframe and the slot subframe of the ultra-narrow double inward opening door and window system are structurally constructed in an L-shape on both sides; the lower slot subframe and the hook subframe are structurally constructed in another L-shape. The two L-shapes combined form the rectangle of the door and window outer frame. In actual operation, the structural positions of the hook subframe and the slot subframe on the left and right sides of the door and window outer frame can be interchanged as long as the design is matched. The design and positioning of the upper hook subframe and the lower slot subframe cannot be changed.

[0090] The upper hook subframe and the slot subframe of the ultra-narrow double inward opening door and window system are L-shaped on both sides; the lower slot subframe and the hook subframe are L-shaped on the other side. The combination of the two L-shapes forms the rectangle of the outer frame of the door and window.

[0091] The design and working principle relationship between the upper, lower, left, right sides, and splicing pipes of the ultra-narrow double inward opening window system:

[0092] a. Upper part of the ultra-narrow double inward opening door and window system:

[0093] A door and window frame outer groove and an upper door and window frame and sub-frame inner and outer structural connector (i.e., sub-frame connector 6) are designed using the outermost groove of the existing door and window frame profile 1; a door and window frame and sub-frame structural transition piece (i.e., second sub-frame transition piece 7) is also designed; and the existing door and window frame profile, sub-frame inner and outer structural connector, door and window frame and sub-frame structural transition piece, and door and window frame and sub-frame inner and outer structural connector connecting bolts 8 are used to lock the relationship between the various components into a unified whole structure. Because the sub-frame profile has already been fixed in the building construction wall according to the basic requirements of building construction in the previous process before the door and window installation, the subsequent process does not require layout and positioning. Therefore, only foaming agent gap filling and caulking sealing are required to complete the upper door and window installation.

[0094] b. Lower part of the ultra-narrow double inward opening window and door system:

[0095] The subframe structural adapter (i.e., the first subframe adapter 4) is inserted into the groove of the lower door and window outer frame 1; the groove of the subframe structural adapter is then inserted into the unit-type slotted subframe, connecting the existing door and window outer frame, subframe structural adapter, and unit-type slotted subframe into a unified whole structure. Because the subframe profile has already been fixed in the building construction wall according to the basic requirements of building construction in the previous process, the subsequent process does not require layout and positioning. Therefore, only sealing with caulking is needed to complete the installation of the lower door and window.

[0096] d. Left and right sides of the ultra-narrow double inward opening door and window system:

[0097] The left and right sides of the ultra-narrow double inward opening window and door system can be designed with the lower part of the ultra-narrow double inward opening window and door system or the upper part of the ultra-narrow double inward opening window and door system. Each side of the ultra-narrow double inward opening window and door system has an L-shaped set, and the two L-shaped sets are combined to form the outer frame of the window and door.

[0098] In my country, the construction industry accounts for approximately half of the total energy consumption during construction and use. With the growing awareness of sustainable development, people are increasingly emphasizing the aesthetics and energy efficiency of buildings. The aim is to increase the thermal resistance of indoor and outdoor energy exchange while ensuring indoor thermal environment quality, thereby reducing the massive energy consumption of heating and air conditioning systems and achieving rational resource utilization and sustainable development. Aesthetics, energy efficiency, and windows are key aspects of building energy conservation, with improved practical and multifunctional features such as mosquito and fly protection. Windows are sensitive areas for energy gain and loss and are closely related to lighting, ventilation, sound insulation, and facade design. This places higher demands on improving the aesthetics and energy efficiency of windows. The structural treatment around window frames mainly focuses on improving the thermal insulation performance of materials and enhancing the water tightness, air tightness, and wind pressure resistance of the windows—important overall performance characteristics of the building's exterior walls. Improving building performance through energy-efficient and safe windows, thereby establishing a sound green, low-carbon, and circular economic system, and ensuring sustainable development towards carbon peaking and carbon neutrality is the current trend in building energy conservation.

[0099] With the implementation of the concept of sustainable development and the rapid development of my country's construction industry, the living standards of the Chinese people and the increasing standards for building energy conservation and safety have led to greater emphasis on the overall quality of exterior doors and windows, especially during the installation process, in order to improve construction quality. Traditional door and window installation methods urgently need to be changed. The innovative installation technology of this system has a significant impact on greatly improving the construction quality of the door and window industry, as well as on the aesthetics, safety, performance, energy conservation, environmental protection, and maintenance of the overall building.

[0100] Technical problems with existing door and window installation methods in traditional buildings:

[0101] 1. Disadvantages of using waterproof mortar as a filler for the gaps between the exterior wall and the aluminum door and window frames: Waterproof mortar, being a non-elastic structure, makes direct hard contact with the door and window frames, causing cracks in the gaps after filling. Even when sealant is used, the gaps are prone to deformation and cracking due to the incompatibility between the sealant and the waterproof mortar, resulting in water seepage.

[0102] 2. Disadvantages of using waterproof cloth as a filler for the gaps between the exterior wall and the aluminum door and window frames: complicated operation, high cost, uneconomical, and poor waterproof effect.

[0103] 3. Advantages and disadvantages of steel subframes: Steel subframes provide a plastering reference, reducing overlap time between the main frame and other trades; they are a post-installation method for doors and windows, beneficial for protecting the finished product. However, the construction method of steel subframes is prone to displacement due to the gap between the steel frame and the outer frame filled with foaming agent and sand. This can lead to water seepage in the subframe, peeling and rusting of the galvanized layer of the steel frame, cracking of the sealant between the subframe and the window frame, water seepage around the window frame, and window frame tilting, causing a series of safety problems. Furthermore, the use of screws for fixing also damages the integrity of the outer frame cavity.

[0104] 4. Advantages and disadvantages of wood-plastic energy-saving ultra-narrow double inward opening door and window system: Compared with steel ultra-narrow double inward opening door and window system, it will not rust or corrode, but it is not economical and is not waterproof.

[0105] 5. Advantages and disadvantages of post-installed male and female clip iron plate installation: This method of post-installation of doors and windows is beneficial for the protection of finished doors and windows. However, it requires high precision in the plastering of exterior wall door and window openings, the installation strength may not meet standards, and it is not waterproof.

[0106] 6. Due to the rapid development of the construction industry in recent years and its large scale, the state has mandated the increase of prefabricated buildings (hereinafter referred to as PC) to improve energy conservation. However, the installation methods for doors and windows in PC designs are still based on traditional methods due to their high level of specialization, which violates the original design intention of PC buildings. The design scheme of this system effectively solves this problem.

[0107] 7. With the continuous improvement of national technical and performance requirements for doors and windows, and the increasing demand for home renovations, replacing doors and windows has become a challenge, especially in older high-rise buildings with poor construction quality. Poor construction control during the secondary demolition and reconstruction of doors and windows can lead to the collapse of original wall cement materials from heights, causing serious economic, social, and even life-threatening problems for residents. Because the subframe profiles in this embodiment are fixed to the building walls according to basic construction requirements before door and window installation, they are integrated into the building structure. Furthermore, the subframe profiles adhere to the universality and standardization of the design grooves for both existing and future door and window frames. Therefore, repairing and replacing doors and windows is a subsequent process, eliminating the need for wall demolition and layout. Using the ultra-narrow double-inward-opening door and window system installation method can completely solve the problems of home renovation and secondary door and window repair and replacement for the general public.

[0108] This embodiment provides a unitized, ultra-narrow concealed C-groove double inward-opening door and window structure:

[0109] 1. The main feature of this embodiment is the high-precision structural connection between the door and window subframes embedded in the wall and the outer frame of the ultra-narrow concealed C-groove double inward opening door and window system. Specifically, due to increasingly higher energy-saving requirements, modern door and window structures require increasingly larger cross-sectional widths, but the width of the visible surface of the doors and windows is becoming increasingly smaller. This contradictory structural relationship places higher demands on the design and installation of doors and windows. The ultra-narrow door and window sashes are very stable because of the glass structure on all four sides. The ultra-narrow double inward opening door and window outer frame is connected using the traditional door and window subframe process. Because the visible surface is small, the total thickness of the material is also small, which cannot achieve the structural strength of the door and window and the high-precision sealing structural connection between the door and window sashes and frames.

[0110] It also solves the problem of C-groove hardware channels for ultra-narrow screen windows (traditional ultra-narrow double inward opening doors and windows, glass sash and screen sash are C-groove + U-groove, U-groove has the defects of inconvenient and unsightly hardware installation) as well as the screen window function to prevent mosquitoes and insects and the hidden drainage channel (this drainage method is not only beautiful but also has a good drainage effect, while traditional doors and windows are mostly exposed sealed drainage). It is a multi-functional door and window system.

[0111] 2. Using this embodiment, the waterproofing problem between the outer frame of doors and windows and the wall, the problem of inaccurate installation positioning measurement, the problem of protecting finished products in the building with the pre-installation construction method, the problem of unreliable installation connection strength between the outer frame of doors and windows and the wall, and the problem of a large amount of waste of labor, sealant, foaming agent, screws and other materials between the outer frame of doors and windows and the wall.

[0112] 3. The quality of the installation and connection points around doors and windows directly affects the overall installation quality, and these areas are also the most prone to leakage. The ultra-narrow double inward-opening door and window system effectively solves this problem. Its unique structure ensures a clear interface between the door / window contractor and the civil engineering contractor, and clearly identifies the points for the civil engineering to determine the floor plan.

[0113] 4. By utilizing the outer side of the door and window frames and the aluminum wall surface of the subframe (the sealant on both sides of the inner and outer walls of the doors and windows), the sealant is directly applied to the aluminum alloy profile. This solves the unscientific and difficult-to-solve construction problems caused by the incompatibility of materials due to the direct connection between the sealant and the exterior wall mortar in the original construction method, such as cracking, curling, and water seepage.

[0114] 5. The seamless design of the ultra-narrow double inward-opening window and door system extends the original sealed cavity of the window and door frame into the wall, effectively adding a sealed cavity and increasing the thickness of the original frame material. This integrates two previously separate components into a unified whole. The advantages of this design principle for the ultra-narrow double inward-opening window and door system are mainly reflected in:

[0115] 1) The connection between the outer frame of the doors and windows and the wall of the ultra-narrow double inward opening door and window system increases the thickness of the material and forms an integral part of the building, making the raw materials stronger and achieving a more beautiful appearance.

[0116] 2) The extension design of the waterproof positioning bars on both sides of the subframe and the waterproof reinforcing bars in the middle subframe is led to the building wall through the two long sides of the insert-type ultra-narrow double inward opening door and window system, so that the two originally independent and separate individual building heights of the door and window frame and the wall are integrated into one, forming a sealed building component that integrates heat preservation, heat insulation, waterproofing, positioning and connection.

[0117] 3) Through the design of the profile cross-section channels and various surfaces, the project allows for both pre-installation (a professional term referring to the method of installing the door and window frame before the building construction and wall painting) and post-installation (a professional term referring to the method of installing the door and window frame after the building construction and wall painting) during construction. This plays a positive role in protecting the finished door and window products, solves a series of problems such as dirt and mess after on-site installation of door and window frames, as well as serious material deformation and paint peeling, and saves a lot of packaging materials.

[0118] 4) The multi-clamp connection installation method of the ultra-narrow double inward opening door and window system embedded in the building wall greatly enhances the strength of the ultra-narrow double inward opening door and window system.

[0119] 5) The surface design of the ultra-narrow double inward-opening window and door system solves the contact difficulties between the window and door frame and the building surface in traditional construction. This is because the ultra-narrow double inward-opening window and door system uses materials that are compatible with the window and door frame profiles, resulting in a high degree of integration between the frame and the building. This plays a crucial role in the connection strength, insulation, and sealing performance between the two.

[0120] 6) The ultra-narrow double inward opening door and window system utilizes the straight contact surface and 90-degree angle principle of the outer frame profile and the sub-frame profile to completely solve the industry problem of uneven, non-straight, and unsightly surface of the sealant between the original exterior wall doors and windows, thus improving the construction effect of the exterior wall doors and windows.

[0121] 7) The ultra-narrow double inward opening door and window system has a significant height difference at the top, bottom, left and right sides because the design itself is higher than the finished surface of the exterior wall structure. Therefore, even if the original product delaminates, this structure will still have superior waterproof performance by utilizing the height difference.

[0122] 8) The slot design of the ultra-narrow double inward opening door and window system allows for quick and reasonable entry into the slot for automatic positioning, fast fixing, and connection during installation.

[0123] 9) The four corner joints of the subframe of the ultra-narrow double inward opening window system are all tightly sealed, which improves the overall airtightness of the ultra-narrow double inward opening window system.

[0124] 10) The ultra-narrow double inward opening door and window system can meet the design and construction process requirements of various exterior and interior walls.

[0125] 11) The ultra-narrow double inward opening window system can save a lot of labor and materials due to its compact structure and simple installation, and has great economic, environmental and comfort benefits.

[0126] 12) For the ultra-narrow double inward opening door and window system, the entire frame of the door and window is installed. Apart from the four corner connectors of the subframe and the connection between the subframe iron feet and the civil wall, no screws are needed to fasten it anywhere else.

[0127] 13) The ultra-narrow double inward opening window system completely disconnects the connection between the window and the subframe with thermal insulation material, blocking heat exchange and meeting energy-saving design requirements.

[0128] 14) When using the ultra-narrow double inward opening door and window system, when installing the outer frame of the door and window, there is no need to redo the installation process such as laying out, positioning, and measuring after the completion of the civil engineering. This is because the subframe has already been positioned and installed according to the building construction requirements in the previous process. The subsequent process can simply be the slotting and fastening. Compared with the traditional installation method, this saves a lot of workers' installation time.

[0129] 15) The subframe channel is made of the same aluminum material as the doors and windows. The overall design has advantages that cannot be replaced by other traditional subframes.

[0130] 16) The aluminum material rib buckle design and rib height difference design of the ultra-narrow double inward opening door and window system channel not only increase the strength of the frame, but also strengthen the integrity with the civil engineering wall, making the frame more solid and stable.

[0131] Except for the four corner connectors of the subframe, the iron feet of the subframe, and the connection to the civil engineering wall, no other installation parts of the ultra-narrow double inward opening door and window system channel require drilling.

[0132] This utility model sets the entire inner and outer sides of the double inward opening door and window structure as a single plane, and combines it with the installation structure of hook subframe and groove subframe, thus solving the key structural problems of unstable and unreliable installation strength and precision of the double inward opening door and window structure.

[0133] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0134] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A unit-type double inward-opening door and window structure, characterized in that, include: Door and window outer frame (1), door and window inner sash (2), screen inner sash (15), first door and window connecting component and second door and window connecting component; The outdoor side of the inner sash (2) of the door and window is connected to the outdoor side of the outer frame (1) of the door and window through the inner sash (15) of the screen window; The outer frame of the door and window (1) and the inner sash of the screen window (15) are located on the same plane with their sides closest to the outside. The outer frame (1) of the door and window and the inner sash (2) of the door and window are located on the same plane with their sides closest to the interior side. The first door and window connection assembly includes: a slotted subframe (3) and a first subframe adapter (4); the second door and window connection assembly includes: a hook subframe (5), a subframe connector (6) and a second subframe adapter (7); The slotted subframe (3) is embedded in the wall (9) for installing the lower end of the door and window outer frame (1). The first subframe adapter (4) is connected to the slotted subframe (3). The lower end of the door and window outer frame (1) is connected to the first subframe adapter (4). The lower end of the door and window is connected to the lower end of the door and window outer frame (1) through the inner sash (2). The hook subframe (5) is embedded in the wall (9) at the upper end of the door and window outer frame (1) for installation. The subframe connector (6) is connected to the hook subframe (5). The second subframe adapter (7) is connected to the subframe connector (6). The upper end of the door and window outer frame (1) is connected to the second subframe adapter (7). The upper end of the door and window is connected to the upper end of the door and window outer frame (1) through the inner door and window sash (2).

2. The unit-type double inward-opening door and window structure according to claim 1, characterized in that, The outer frame of the door and window (1) includes: an outer profile (101) and an inner profile (102) of the outer frame of the door and window connected to each other; The upper end of the outer profile (101) of the outer frame of the door and window is connected to the outer end of the second subframe adapter (7), and the lower end of the outer profile (101) of the outer frame of the door and window is connected to the outer end of the first subframe adapter (4). The upper end of the inner profile (102) of the outer frame of the door and window is connected to the inner end of the second subframe adapter (7), and the lower end of the inner profile (102) of the outer frame of the door and window is connected to the inner end of the first subframe adapter (4).

3. The unit-type double-inward-opening door and window structure according to claim 2, characterized in that, The inner sash of the door and window (2) includes: an outer profile (201) and an inner profile (202) of the inner sash of the door and window connected to each other; The outer profile (101) of the outer frame of the door and window is connected to the outer profile (201) of the inner sash of the door and window through the inner sash (15), and the inner sash (15) of the screen is located on the side of the outer profile (201) of the inner sash of the door and window closer to the outside; the inner profile (102) of the outer frame of the door and window is connected to the inner profile (202) of the inner sash of the door and window. The outer profile (201) of the inner sash of the door and window is connected to the outer side of the door and window, and the inner profile (202) of the inner sash of the door and window is connected to the inner side of the door and window. The outer profile (101) of the outer frame of the door and window and the inner sash (15) of the screen window are located on the same plane with the outer side closest to the outside. The inner side profile (102) of the outer frame of the door and window and the inner side profile (202) of the inner sash of the door and window, which are closest to the indoor side, are located in the same plane.

4. The unit-type double-inward-opening door and window structure according to claim 1, characterized in that, The lower end of the door and window outer frame (1) is provided with a first door and window groove structure, and the lower end of the door and window outer frame (1) is snapped onto the first subframe adapter (4) through the first door and window groove structure. The first subframe adapter (4) is provided with a first subframe slot structure, and the first subframe adapter (4) is snapped onto the slotted subframe (3) through the first subframe slot structure.

5. The unit-type double inward-opening door and window structure according to claim 1, characterized in that, The upper end of the door and window outer frame (1) is provided with a second door and window groove structure, and the upper end of the door and window outer frame (1) is snapped onto the second sub-frame adapter (7) through the second door and window groove structure; The subframe connector (6) is provided with a first connecting slot structure and a second connecting slot structure. The subframe connector (6) is snapped onto the second subframe adapter (7) through the first connecting slot structure, and the subframe connector (6) is snapped onto the hook subframe (5) through the second connecting slot structure.

6. The unit-type double-inward-opening door and window structure according to claim 5, characterized in that, The subframe connector (6) includes: an inner connecting structure (602), an outer connecting structure (601), and connecting bolts (8); The inner connecting structure (602) and the outer connecting structure (602) are connected and fixed by the connecting bolts (8); The first connecting slot structure is formed between the lower end of the inner connecting structure (602) and the lower end of the outer connecting structure (601); The second connecting slot structure is formed between the upper end of the inner connecting structure (602) and the upper end of the outer connecting structure (601).

7. The unit-type double inward-opening door and window structure according to claim 1, characterized in that, The lower end and the upper end of the door and window frame (1) are the lower side and the upper side of the door and window frame (1), respectively.

8. The unit-type double inward-opening door and window structure according to claim 7, characterized in that, The unitized ultra-narrow concealed inward-opening door and window structure also includes: a third door and window connection component and a fourth door and window connection component; The first side end of the outer frame (1) of the door and window is connected to the wall (9) through the third door and window connecting component. The third door and window connecting component has the same structure as the first door and window connecting component or the second door and window connecting component. The second side end of the outer frame (1) of the door and window is connected to the wall (9) through the fourth door and window connecting component. The fourth door and window connecting component has the same structure as the first door and window connecting component or the second door and window connecting component. The first and second side ends of the door and window outer frame (1) are respectively two opposite sides of the door and window outer frame (1); The lower end, upper end, first side end, and second side end of the door and window outer frame (1) are the four sides of the door and window outer frame (1).

9. The unit-type double-inward-opening door and window structure according to claim 8, characterized in that, The third door and window connecting component has the same structure as the first door and window connecting component, and the fourth door and window connecting component has the same structure as the second door and window connecting component; The slotted subframe (3) for installing the lower end of the door and window outer frame (1) and the slotted subframe (3) for installing the first side end of the door and window outer frame (1) form a first L-shaped structure. The hook attachment (5) used for installing the upper end of the door and window outer frame (1) and the hook attachment (5) used for installing the second side end of the door and window outer frame (1) form a second L-shaped structure; The first L-shaped structure and the second L-shaped structure are combined to form a rectangular structure surrounding the perimeter of the outer frame (1) of the door and window.

10. The unit-type double inward-opening door and window structure according to claim 3, characterized in that, The outer profile (101) of the door and window frame and the inner profile (102) of the door and window frame are connected by the door and window frame thermal insulation strip (103); The outer profile (201) of the inner sash of the door and window and the inner profile (202) of the inner sash of the door and window are connected by the thermal insulation strip (203) of the inner sash of the door and window; The outer profile (101) of the outer frame of the door and window is connected to the inner sash (15) of the screen window through a first sealing strip, the inner sash (15) of the screen window is connected to the outer profile (201) of the inner sash of the door and window through a second sealing strip, and the outer profile (201) of the inner sash of the door and window is connected to the outer side of the door and window through a third sealing strip. The inner profile (102) of the outer frame of the door and window is connected to the inner profile (202) of the inner sash of the door and window through a fourth sealing strip, and the inner profile (202) of the inner sash of the door and window is connected to the inner side of the door and window through a fifth sealing strip.

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