A multi-stage sealing system for outward-opening doors and windows

Abstract

The present invention relates to the technical field of outward-opening doors and windows, and proposes a multi-stage sealing system for outward-opening doors and windows, which includes: a first sealing strip; a position fixing component; a sealing matching component; wherein the position fixing component includes a first connecting matching component and a second connecting matching component connected to the first sealing strip; the sealing matching component includes a first sealing matching component and a second sealing matching component; when the outward-opening door and window sash profile structure performs a window closing action, the first sealing strip and the first sealing matching component form a first sealing structure close to the outside, and the first sealing strip and the second sealing matching component form a second sealing structure close to the inside, and the distance from the sealing position of the second sealing structure to the strip supporting body is smaller than the distance from the sealing position of the first sealing structure to the strip supporting body. The present invention forms a stepped sealing shape through the linkage effect between the multi-stage seals, which significantly improves the overall sealing effect and facilitates drainage.

Description

Technical Field

[0001] The invention relates to the technical field of outward-opening doors and windows, in particular to a multi-stage sealing system for outward-opening doors and windows. Background Art

[0002] Outward-opening doors and windows are an important form of door and window opening, and are named because they open toward the outside of the building. Outward-opening doors and windows are widely used because they do not occupy indoor space. With the overall improvement of social quality of life, outward-opening doors and windows have evolved from traditional outward-opening forms to multiple or combined forms that can be tilted in one or more directions to meet more individual specific functional needs such as indoor micro-ventilation.

[0003] Door and window profiles are the main structural frames of doors and windows. For outward-opening doors and windows, they usually include a frame connected to the wall, and the outer and inner frames of the door / window sashes (fans). Among them, the inner and outer frames of the sashes are usually used in pairs. The inner frame is used to install glass, handle hardware, sliding brace / hinge hardware, etc., and the outer frame is used to connect to the frame and install locking points / anchor points, sliding brace / hinge hardware, etc. Among them, the installation positions of locking points / anchor points, sliding braces / hinges, handles, etc. on the profile are generally called the hardware channels of the profile. In the smart door and window system, sensors, power, transmission components, smart system wiring, etc. are usually also chosen to be implemented in the hardware channel.

[0004] Therefore, the existing outward opening door and window system has the following technical problems:

[0005] (1) The multi-stage sealing structure of the existing outward-opening door and window system all uses the same sealing strip protrusion and corresponding groove to achieve sealing and waterproofing. When such a structure encounters kinetic energy water impact penetration, rainwater will remain between the first sealing structure and the second sealing structure and is difficult to discharge. When the impurities and non-neutral properties of rainwater soak the sealing strip for a long time, it will accelerate the aging of the strip and reduce the life of the first sealing strip.

[0006] (2) In the multi-stage sealing of the existing outward-opening door and window system, each stage of the sealing structure independently realizes the sealing and waterproofing function, and there is no linkage between them, so it is impossible to form a multi-stage sealing system with overall sealing performance, and the overall sealing performance is poor. Summary of the invention

[0007] Based on the above technical background, the present invention provides a multi-stage sealing system for outward-opening doors and windows, aiming to solve the technical problem of poor overall sealing and waterproof performance of the existing multi-stage sealing system for outward-opening doors and windows.

[0008] The following is one of the optional invention contents solutions based on the concept of the present invention:

[0009] A multi-stage sealing system for outward-opening doors and windows, comprising:

[0010] First sealing strip;

[0011] Position fixing components;

[0012] Seal fitting components;

[0013] Wherein, the position fixing assembly comprises a first connecting fitting and a second connecting fitting arranged on the profile structure of the outward opening door and window sash body;

[0014] Wherein, the first sealing strip is connected to the first connecting fitting and the second connecting fitting;

[0015] Wherein, the sealing matching assembly comprises a first sealing matching part and a second sealing matching part arranged on the profile structure of the outward opening door and window frame;

[0016] Wherein, when the outward opening door and window sash body profile structure performs a window closing action, the first sealing strip and the first sealing fitting form a first sealing structure, and the first sealing strip and the second sealing fitting form a second sealing structure;

[0017] Wherein, the first sealing structure is a sealing structure close to the outside, and the second sealing structure is a sealing structure close to the inside;

[0018] Wherein, the distance from the sealing position of the second sealing structure to the rubber strip supporting body is smaller than the distance from the sealing position of the first sealing structure to the rubber strip supporting body.

[0019] Optionally, the first sealing strip includes:

[0020] A first rubber strip supporting body having a first connecting surface and a second connecting surface;

[0021] Wherein, the first connecting surface is provided with a first connecting portion, and the first connecting portion is used to connect with a first connecting fitting;

[0022] Wherein, the second connecting surface is provided with a first sealing portion, and the first sealing portion includes a first sealing member and a second sealing member;

[0023] Wherein, the first sealing member is used to form a first sealing structure with a first sealing matching member configured in the frame profile structure of the outward-opening door and window when performing the window closing action;

[0024] Wherein, the second sealing member is used to form a second sealing structure with the second sealing matching member configured in the outward opening door and window frame profile structure when performing the window closing action.

[0025] Optionally, the first sealing member is a first sealing protrusion;

[0026] The first sealing fitting is a first sealing surface;

[0027] The first sealing protrusion and the first sealing surface form a first sealing structure through a first interference fit.

[0028] Optionally, the first sealing member is a first sealing protrusion;

[0029] The first sealing fitting is a first sealing surface;

[0030] Wherein, the protruding direction of the first sealing protrusion points to the first sealing surface, and an isobaric channel is left between the first sealing protrusion and the first sealing surface to form a first sealing structure.

[0031] Optionally, the first sealing surface is provided with a blocking protrusion;

[0032] Wherein, the blocking protrusion is arranged outside the position where the first sealing protrusion points to the first sealing surface, and the isobaric channel is an interlaced channel between the blocking protrusion and the first sealing protrusion.

[0033] Optionally, the first sealing surface is provided with a plurality of flow guiding protrusions;

[0034] Wherein, the guide protrusion is arranged on the inner side of the position where the first sealing protrusion points to the first sealing surface, and the annular guide protrusion around the outward-opening door and window sash body profile structure forms a guide drip line.

[0035] Optionally, a sealing member connector is provided between the first sealing member and the second sealing member;

[0036] Wherein, the first seal, the second seal and the seal connector form a groove facing the outward opening door and window frame profile structure;

[0037] Wherein, the annular groove around the outward opening door and window sash body profile structure constitutes a drainage groove.

[0038] Optionally, the first sealing surface has:

[0039] Buffer segment;

[0040] Sealing section;

[0041] Wherein, the buffer section is a portion extending outward from the sealing position on the first sealing surface;

[0042] Wherein, the sealing section is a portion extending inward from the sealing position on the first sealing surface;

[0043] Wherein, the buffer section, the first sealing protrusion and the outward-opening door and window sash body profile structure form a rainwater buffer space.

[0044] Optionally, the buffer section is provided with a drainage channel.

[0045] Optionally, the second sealing member is a second sealing protrusion;

[0046] The second sealing fitting is a second sealing surface;

[0047] The second sealing protrusion and the second sealing surface form a second sealing structure through a second interference fit.

[0048] Optionally, the interference amount of the second interference fit is greater than the interference amount of the first interference fit;

[0049] When the window closing action is performed, the first sealing structure and the second sealing structure form a sealed space with an internal air pressure greater than the atmospheric pressure.

[0050] Optionally, the first connecting portion has:

[0051] a first connecting member;

[0052] Wherein, the first connecting member is used to connect with the first connecting fitting so that the first sealing strip follows the outward opening door and window sash body profile structure to perform window opening and window closing actions.

[0053] Optionally, the first connecting member is a connecting protrusion, and the connecting protrusion is provided with a first limiting structure;

[0054] The first connection fitting is a connection groove, and the connection groove is provided with a second limiting structure;

[0055] Wherein, the first limiting structure cooperates with the second limiting structure to fix the connecting protrusion in the connecting groove.

[0056] Optionally, the first connecting portion further includes:

[0057] a second connecting member;

[0058] Wherein, the second connecting member is used to connect with the second connecting fitting configured in the outward-opening door and window sash profile structure, so that the first sealing strip maintains the position of the first sealing strip when it follows the outward-opening door and window sash profile structure to perform window opening and / or window closing actions.

[0059] Optionally, the second connecting member includes a window-opening first abutting surface and / or a window-closing first abutting surface;

[0060] The second connecting fitting comprises an opening window second abutment surface and / or a closing window second abutment surface;

[0061] The first abutting surface of the window opening abuts against the second abutting surface of the window opening, so as to offset the stress generated by the interference fit of the first sealing structure when the profile structure of the outward-opening door and window sash performs the window opening action;

[0062] The first window closing abutment surface abuts against the second window closing abutment surface to offset the stress generated by the interference fit of the first sealing structure and the second sealing structure when the outward opening door and window sash profile structure performs the window closing action.

[0063] Optionally, the first sealing portion further includes:

[0064] A support structure disposed on the second connection surface;

[0065] Wherein, the first sealing member and the second sealing member are connected to the supporting structure.

[0066] Optionally, reinforcing ribs are provided in the supporting structure.

[0067] Optionally, also include:

[0068] Second sealing strip;

[0069] Wherein, the position fixing assembly further comprises a third connecting fitting configured on the profile structure of the outward opening door and window frame;

[0070] Wherein, the second sealing strip is connected to the third connecting fitting;

[0071] Wherein, the sealing matching assembly also includes a third sealing matching piece configured on the profile structure of the outward opening door and window sash body;

[0072] Wherein, when the outward-opening door and window sash body profile structure performs the window closing action, the second sealing strip and the third sealing matching component form a third sealing structure.

[0073] Optionally, the second sealing strip includes:

[0074] A second rubber strip supporting body having a third connecting surface and a fourth connecting surface;

[0075] Wherein, the third connecting surface is provided with a second connecting portion, and the second connecting portion is used to connect with the second connecting fitting;

[0076] Wherein, the third connecting surface is provided with a second sealing portion, and the second sealing portion is used to form a third sealing structure with a third sealing fitting configured in the profile structure of the outward-opening door and window sash when performing the window closing action.

[0077] Optionally, the second connecting portion includes:

[0078] A third connecting member;

[0079] Wherein, the third connecting member is used to connect with the third connecting matching member configured in the profile structure of the outward-opening door and window frame.

[0080] Optionally, the third connecting member is a connecting protrusion, and the connecting protrusion is provided with a first limiting structure;

[0081] The third connection fitting is a connection groove, and the connection groove is provided with a second limiting structure;

[0082] Wherein, the first limiting structure cooperates with the second limiting structure to fix the connecting protrusion in the connecting groove.

[0083] Optionally, the second sealing portion has:

[0084] A third seal;

[0085] The third sealing component is used to form a third sealing structure with the third sealing matching component configured in the profile structure of the outward-opening door and window sash body when performing the window closing action.

[0086] Optionally, the third sealing member is configured as a third sealing protrusion;

[0087] The third sealing fitting is a third sealing surface;

[0088] Wherein, the third sealing protrusion and the third sealing surface form a third sealing structure through a third interference fit.

[0089] The beneficial effects of the present invention are reflected in many aspects, some of which are as follows: through the linkage effect between the multi-stage seals, a stepped sealing shape is formed, which significantly improves the overall sealing effect and facilitates drainage; the first sealing structure is moved inward to prevent exposure to direct sunlight, slow down the natural weathering and aging of the sealing strip, and at the same time form a rainwater buffer space, reduce the impact kinetic energy of rainwater, and reduce the rainwater that breaks through the first sealing structure; the first sealing structure and the second sealing structure are designed as an integrated whole, and the integrated design of the strip forms an airtight space in the first and second sealing cavities, and the enclosed space will form a certain positive pressure due to the squeezing of the sealing strip when the window is closed. When the positive pressure acts on the gap between the first sealing strip and the window body, it can further block water from entering through the gap, significantly improving the overall sealing effect; the first sealing structure and the second sealing structure are designed as an integrated whole, and the integrated strip forms an isobaric space inside and outside the first and second spaces, and the isobaric space inside and outside can discharge the dynamic water entering from the upper part at the lower part, which can further improve the waterproof performance of the door and window system; the distance from the sealing position of the second sealing structure to the strip support body is set to be smaller than the distance from the sealing position of the first sealing structure to the strip support body, further blocking rainwater from entering after breaking through the first sealing structure. The system sealing performance is improved, and the problems of drainage and sanitation are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0090] Figure 1A first structural schematic diagram of the multi-stage sealing system for outward-opening doors and windows provided by the present invention;

[0091] Figure 2 A second structural schematic diagram of the multi-stage sealing system for outward-opening doors and windows provided by the present invention;

[0092] Figure 3 A third structural schematic diagram of the multi-stage sealing system for outward-opening doors and windows provided by the present invention;

[0093] Figure 4 A fourth structural schematic diagram of the multi-stage sealing system for outward-opening doors and windows provided by the present invention;

[0094] Figure 5 This is a schematic diagram of the structure of the first sealing strip provided by the present invention in a door and window system;

[0095] Figure 6 This is a second structural schematic diagram of the first sealing strip provided by the present invention in a door and window system;

[0096] Figure 7 This is a three-dimensional schematic diagram of the multi-stage sealing system for outward-opening doors and windows provided by the present invention.

[0097] Reference numerals:

[0098] 1-first sealing rubber strip; 11-first rubber strip supporting body; 12-first sealing part; 121-first sealing element; 122-second sealing element; 13-first connecting part; 131-first connecting element; 132-second connecting element; 14-supporting structure; 141-reinforcing rib; 2-outward opening door and window frame profile structure; 21-first sealing fitting; 211-blocking protrusion; 212-flow guiding protrusion; 22-second sealing fitting; 23-sealing element connecting element; 24-third connecting fitting; 3-outward opening door and window sash profile structure; 31-first connecting fitting; 32-second connecting fitting; 33-third sealing fitting; 4-second sealing rubber strip; 41-second rubber strip supporting body; 42-second sealing part; 43-second connecting part. DETAILED DESCRIPTION

[0099] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0100] Reference Figure 1-Figure 7 .

[0101] Embodiment 1:

[0102] The present embodiment provides a multi-stage sealing system for outward-opening doors and windows, comprising: a first sealing strip 1; a position fixing component; a sealing fitting component; wherein the position fixing component comprises a first connecting fitting 31 and a second connecting fitting 32 configured on the outward-opening door and window sash body profile structure 3; wherein the first sealing strip 1 is connected to the first connecting fitting 31 and the second connecting fitting 32; wherein the sealing fitting component comprises a first sealing fitting 21 and a second sealing fitting 22 configured on the outward-opening door and window frame profile structure 2; wherein, when the outward-opening door and window sash body profile structure 3 performs the window closing action, the first sealing strip 1 and the first sealing fitting 21 form a first sealing structure, and the first sealing strip 1 and the second sealing fitting 22 form a second sealing structure; wherein the first sealing structure is a sealing structure close to the outside, and the second sealing structure is a sealing structure close to the inside; wherein the distance from the sealing position of the second sealing structure to the strip supporting body is smaller than the distance from the sealing position of the first sealing structure to the strip supporting body.

[0103] In the profile door and window structure, the sash can be divided into open sash and fixed sash according to whether the sash can be opened. Usually, the same opening will have a combination structure of some open sashes and other fixed sashes. In order to make the profile structure present integrity, it is usually necessary to make the profile base frame of the open sash and the fixed sash share the same structure, which forms the frame structure of the door and window. The frame structure is first installed in the opening and fastened to the wall / building. The open sash structure also includes two parts, one part is the outward-opening door and window frame profile structure 2 connected to the frame, and the other part is the outward-opening door and window sash body profile structure connected to the outward-opening door and window frame profile structure 2 (usually) through hardware (such as sliding braces).

[0104] The multi-stage sealing system for outward-opening doors and windows provided in this embodiment includes a first sealing strip 1 arranged between the outward-opening door and window frame profile structure 2 and the outward-opening door and window sash body profile structure 3, a first connecting fitting 31 and a second connecting fitting 32 connected to the first sealing strip 1, and a first sealing fitting 21 and a second sealing fitting 22 that are sealed and matched with the first sealing strip 1. When opening and closing the window, the first sealing strip 1 moves with the outward-opening door and window sash body profile structure 3, and when closing the window, the first sealing strip 1 forms a first sealing structure and a second sealing structure with the outward-opening door and window frame profile structure 2, realizing the integrated formation of the first sealing structure and the second sealing structure, facilitating the installation and replacement of the sealing strip, and also improving the overall sealing performance.

[0105] In actual applications, the distance from the sealing position of the second sealing structure to the rubber strip supporting body is set to be smaller than the distance from the sealing position of the first sealing structure to the rubber strip supporting body, thereby forming a stepped two-layer sealing system, which can prevent the inflow of rainwater when the power water breaks through the first sealing structure; on the other hand, compared with the design of the traditional raised groove structure, this embodiment forms a descending stepped sealing shape extending outward, which significantly improves the overall sealing effect through the linkage effect between the multi-stage seals, and can help with rainwater discharge and hygienic cleaning.

[0106] Embodiment 2:

[0107] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the first sealing strip 1 comprises: a first strip supporting body 11 having a first connecting surface and a second connecting surface; wherein the first connecting surface is provided with a first connecting portion 13, and the first connecting portion 13 is used to connect with a first connecting fitting 31; wherein the second connecting surface is provided with a first sealing portion 12, and the first sealing portion 12 comprises a first sealing component 121 and a second sealing component 122; wherein the first sealing component 121 is used to form a first sealing structure with a first sealing fitting 21 configured with the outward-opening door and window frame profile structure 2 when performing a window closing action; wherein the second sealing component 122 is used to form a second sealing structure with a second sealing fitting 22 configured with the outward-opening door and window frame profile structure 2 when performing a window closing action.

[0108] In this embodiment, the first connection portion 13 of the first connection surface of the first rubber strip support body 11 is connected to the outward-opening door and window sash body profile structure 3, and the first sealing portion 12 of the second connection surface of the first rubber strip support body 11 is connected to the outward-opening door and window frame profile structure 2 to form a first sealing structure and a second sealing structure. The first sealing portion 12 includes a first sealing member 121 and a second sealing member 122. The first sealing member 121 and the first sealing fitting member 21 configured with the outward-opening door and window frame profile structure 2 form a first sealing structure close to the outside, and the second sealing member 122 and the second sealing fitting member 22 configured with the outward-opening door and window frame profile structure 2 form a second sealing structure close to the inside. Thus, the first sealing structure close to the outside and the second sealing structure close to the inside are formed in an integrated manner, providing two layers of sealing for the outward-opening door and window system, thereby improving the sealing capability.

[0109] Embodiment 3:

[0110] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the first sealing member 121 is a first sealing protrusion; the first sealing fitting member 21 is a first sealing surface; wherein the first sealing protrusion and the first sealing surface form a first sealing structure through a first interference fit.

[0111] In this embodiment, the first sealing member 121 of the first sealing rubber strip 1 adopts a first sealing protrusion, and the corresponding first sealing mating member 21 configured on the outward-opening door and window frame profile structure 2 is a first sealing surface, and the first sealing protrusion is used to abut against the first sealing surface to form a first sealing structure to perform a first layer of sealing and blocking of external rainwater. In a preferred embodiment, the first sealing protrusion is usually a raised sheet-shaped rubber strip.

[0112] In actual application, the first sealing surface is configured as the surface of the first position of the outward-opening door and window frame profile structure 2. Since the first sealing strip 1 is connected to the outward-opening door and window sash body profile structure 3 and moves with the outward-opening door and window sash body profile structure 3, when performing the window closing action, the outward-opening door and window sash body profile structure 3 rotates around the rotation axis close to the outward-opening door and window frame profile structure 2. Therefore, the first sealing protrusion of this embodiment is configured to be perpendicular or substantially perpendicular to the first sealing surface when the outward-opening door and window sash body profile structure 3 and the outward-opening door and window frame profile structure 2 are closed. In addition, the first sealing protrusion and the first sealing surface are abutted by an interference fit, thereby, through the position driving of the outward-opening door and window sash body profile structure 3 on the first sealing member 121 and the squeezing of the outward-opening door and window frame profile structure 2 on the first sealing member 121, a relatively firm first sealing structure is achieved to prevent the breakthrough and inflow of rainwater with a certain kinetic energy or less.

[0113] Embodiment 4:

[0114] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the first sealing component is a first sealing protrusion; the first sealing matching component is a first sealing surface; wherein the protruding direction of the first sealing protrusion points to the first sealing surface, and an isobaric channel is left between the first sealing protrusion and the first sealing surface to form a first sealing structure.

[0115] In this embodiment, the first sealing component 121 of the outward-opening door and window sealing strip 1 adopts a first sealing protrusion, and the corresponding first sealing matching component 21 configured on the outward-opening door and window frame profile structure 2 is a first sealing surface. The first sealing protrusion pointing to the first sealing surface and the isobaric channel formed by the first sealing surface are used to achieve an isobaric setting with the external space.

[0116] In practical applications, although the first sealing structure using interference fit proposed in the above-mentioned embodiment can seal and block kinetic water with a certain kinetic energy by "blocking", in some cases, the door and window system may also face kinetic water with greater kinetic energy (for example, when there is strong wind pressure on the outdoor side, the outdoor atmospheric pressure is greater than the air pressure of the sealed space formed by the first sealing structure and the second sealing structure). At this time, the first sealing structure cannot effectively waterproof and seal the kinetic water by "blocking", especially considering the sealing strip of the outward-opening door and window around the profile structure of the outward-opening door and window, the sealed space formed inside is an annular space. If the first sealing structure adopts a tight interference fit, if kinetic water enters the upper part of the annular space, it will flow to the lower part of the annular space and cannot be discharged.

[0117] Therefore, unlike the above-mentioned embodiment, this embodiment forms an isobaric channel between the first sealing protrusion and the first sealing surface by setting the first sealing structure so that the first sealing protrusion is close to but not close to the first sealing surface. On the premise of blocking the entry of kinetic energy water to a certain extent, the isobaric channel forms an equal pressure between the inner and outer spaces, opens the drainage channel, and can discharge the rainwater entering the sealed space, that is, the drainage of the rainwater entering the annular space is achieved by "draining", thereby improving the waterproof effect of the door and window system.

[0118] Embodiment 5:

[0119] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the first sealing surface is provided with a blocking protrusion 211; wherein the blocking protrusion 211 is arranged outside the position where the first sealing protrusion points to the first sealing surface, and the isobaric channel is an interlaced channel between the blocking protrusion and the first sealing protrusion.

[0120] In the present embodiment, since the first sealing protrusion and the first sealing surface are not in close contact but are close to each other to form an isobaric channel, in order to block the isobaric channel to a certain extent, a blocking protrusion 211 is provided on the first sealing surface. The blocking protrusion 211 is located outside the position where the first sealing protrusion points to the first sealing surface, and the isobaric channel is configured as an interlaced channel between the blocking protrusion 211 and the first sealing protrusion.

[0121] Therefore, by cooperating with the first sealing protrusion 211 arranged on the first sealing surface, the staggered channel between the two is utilized to achieve equal pressure in the inner and outer spaces, and rainwater can be further prevented from entering, thereby improving the waterproof effect to a certain extent.

[0122] Embodiment 6:

[0123] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the first sealing surface is provided with a plurality of guide protrusions 212; wherein the guide protrusions 212 are arranged on the inner side of the position where the first sealing protrusion points to the first sealing surface, and the annular guide protrusions around the outward-opening door and window sash profile structure form a guide drip line.

[0124] In the present embodiment, a plurality of guide protrusions 212 are provided on the first sealing surface. Considering the outward-opening door and window sealing strip around the outward-opening door and window sash profile structure, the sealed space formed inside is an annular space. Therefore, an annular guide protrusion is formed by arranging the guide protrusion 212 around the annular space. The annular guide protrusion constitutes a guide drip line. When rainwater enters the annular space from the isobaric channel at the upper part of the annular space, the rainwater will flow along the inner surface of the annular space due to the tension characteristics of water. When passing through the plurality of guide drip lines, the rainwater can be prevented from flowing further into the inner space, and will flow to the lower part of the annular space along the inner surface of the annular space, forming a rainwater flow characteristic similar to a "rain curtain", and then flows out from the isobaric channel at the lower part of the annular space.

[0125] Embodiment 7:

[0126] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, a sealing connector 23 is provided between the first sealing member and the second sealing member; wherein the first sealing member, the second sealing member and the sealing connector 23 form a groove toward the outward-opening door and window frame profile structure; wherein the annular groove around the outward-opening door and window sash body profile structure constitutes a drainage groove.

[0127] In the present embodiment, a sealing connector 23 is provided between the first sealing member and the second sealing member, and the first sealing member, the second sealing member and the sealing connector 23 form a groove facing the outward-opening door and window frame profile structure. Considering the outward-opening door and window sealing strip surrounding the outward-opening door and window sash profile structure, the sealed space formed inside is an annular space. Therefore, the sealing connector 23 also constitutes an annular groove. When the annular groove is at the upper part of the annular space, the groove opening faces upward. When the isobaric channel enters the power water here, the water will gather in the groove and flow to the lower part of the annular space through the annular groove, and flow out through the isobaric channel at the lower part of the annular space, thereby reducing the watertight pressure on the second sealing structure after the power water enters the sealed space, thereby improving the overall waterproof performance.

[0128] Embodiment 8:

[0129] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the first sealing surface comprises: a buffer section; a sealing section; wherein the buffer section is a portion extending outward from the sealing position on the first sealing surface; wherein the sealing section is a portion extending inward from the sealing position on the first sealing surface; wherein the buffer section, the first sealing protrusion and the outward-opening door and window sash profile structure 3 form a rainwater buffer space.

[0130] In this embodiment, the position where the first sealing protrusion abuts against the first sealing surface is set at the middle section position, rather than the traditional outer edge position, and the first sealing surface is divided into a buffer section and a sealing section with the first sealing protrusion as the boundary. In this way, the first sealing structure is moved inward so that it is not exposed to the outdoors, which can improve the problem of natural weathering and aging of the sealing strip.

[0131] After the first sealing structure moves inward, when the window closing action is performed, the outward-opening door and window sash profile structure 3, the first sealing protrusion, and the buffer section together form a rainwater buffer space. When the kinetic energy impacts the outward-opening door and window, the kinetic energy of the kinetic water will usually be dissipated when it contacts the window frame, and the impact on the sealing strip is significantly reduced. The problem of breaking through the sealing strip and soaking the strip is also significantly improved.

[0132] Embodiment 9:

[0133] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the buffer section is provided with a drainage channel.

[0134] It should be noted that the first sealing structure of traditional outward-opening doors and windows is arranged at the outer edge of the first sealing surface. However, rainwater usually enters not only from between the outward-opening door and window sash profile structure 3 and the outward-opening door and window frame profile structure 2, but also flows in or penetrates from the upper edge of the outward-opening door and window sash profile structure 3 (for example, when opening and closing windows). The existing first sealing structure arranged at the outer edge of the first sealing surface not only blocks the entry of external rainwater, but also blocks the rainwater flowing in or penetrating from the upper edge of the outward-opening door and window sash profile structure 3. Not only does it fail to completely block the inflow of external rainwater, it can also fail to promptly remove the rainwater flowing in or penetrating from the upper edge.

[0135] In this embodiment, by moving the first sealing structure inward, on the one hand, the rainwater blocking and sealing performance between the outward-opening door and window sash body profile structure 3 and the outward-opening door and window frame profile structure 2 is improved, and on the other hand, the inward-moved first sealing structure can block the rainwater flowing in or infiltrating from the upper edge, and pass through the rainwater buffer space formed by the first sealing member 121, and flow through the buffer section to discharge the rainwater. That is, by moving the first sealing structure inward, the inward movement amount can ensure that the rainwater flowing in or infiltrating from the upper edge flows through the lower edge, and the position where it flows is outside the sealed space, rather than inside, so that the inflowing rainwater is directly discharged.

[0136] In some embodiments, a drainage channel may be provided in the buffer section to discharge rainwater between the outward-opening door and window sash body profile structure 3 and the outward-opening door and window frame profile structure 2 and rainwater flowing in from the last edge through the drainage channel. Since the first sealing structure is moved inward, the drainage channel provided here will not damage the overall sealing of the door and window.

[0137] Embodiment 10:

[0138] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the second sealing member 122 is a second sealing protrusion; the second sealing fitting 22 is a second sealing surface; wherein the second sealing protrusion and the second sealing surface form a second sealing structure through a second interference fit.

[0139] In this embodiment, the second sealing member 122 of the first sealing rubber strip 1 adopts a second sealing protrusion, and the corresponding second sealing mating member 22 configured on the outward-opening door and window frame profile structure 2 is a second sealing surface. The second sealing protrusion is used to abut against the second sealing surface to form a second sealing structure to provide a second layer of sealing and blocking for rainwater that breaks through the first sealing structure. In a preferred embodiment, the second sealing protrusion can adopt a protruding structure of any shape, for example, it can be a protruding sheet-shaped rubber strip, or it can be a rubber strip of any shape that protrudes toward the second sealing surface.

[0140] In actual application, the second sealing surface is configured as the surface of the second position of the outward-opening door and window frame profile structure 2. Since the first sealing strip 1 is connected to the outward-opening door and window sash profile structure 3 and moves with the outward-opening door and window sash profile structure 3, when the window closing action is performed, the outward-opening door and window sash profile structure 3 rotates around the rotation axis close to the outward-opening door and window frame profile structure 2, and the distance from the sealing position of the second sealing structure to the strip supporting body is smaller than the distance from the sealing position of the first sealing structure to the strip supporting body. Therefore, the second sealing protrusion can be configured to be perpendicular to the first sealing surface or to be in close contact with the first sealing surface at any angle when the outward-opening door and window sash profile structure 3 and the outward-opening door and window frame profile structure 2 are closed. In addition, the second sealing protrusion is abutted against the second sealing surface by interference fit, thereby, a relatively strong second sealing structure is realized through the position driving of the second sealing member 122 by the outward-opening door and window sash body profile structure 3 and the extrusion of the second sealing member 122 by the outward-opening door and window frame profile structure 2. The distance from the sealing position of the second sealing structure to the rubber strip support body is smaller than the distance from the sealing position of the first sealing structure to the rubber strip support body, further blocking rainwater that enters after breaking through the first sealing structure. The sealing performance of the system is improved. At the same time, on the other hand, compared with the multiple protrusion groove sealing structures set in the traditional door and window system, this embodiment also solves the problems of drainage and sanitation.

[0141] Embodiment 11:

[0142] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the interference fit of the second interference fit is greater than the interference fit of the first interference fit; and when the first sealing structure and the second sealing structure perform the window closing action, a sealed space with an internal air pressure greater than the atmospheric pressure is formed.

[0143] In the present embodiment, the interference fit between the second sealing protrusion and the second sealing surface is greater than the interference fit between the first sealing protrusion and the first sealing surface. Thus, the integrated rubber strip forms an airtight space in the first and second sealing cavities. This enclosed space will form a certain positive pressure due to the squeezing of the sealing strip when the window is closed. When the positive pressure acts on the gap between the first sealing strip 1 and the window body, it can further block the entry of water through the gap. Thus, the overall sealing effect is significantly improved through the linkage effect between the multi-stage seals.

[0144] Embodiment 12:

[0145] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the first connecting portion 13 has: a first connecting member 131; wherein the first connecting member 131 is used to connect to a first connecting fitting 31 configured with the outward-opening door and window sash profile structure 3, so that the first sealing strip 1 follows the outward-opening door and window sash profile structure 3 to perform window opening and closing actions.

[0146] In this embodiment, the first connection portion 13 of the first sealing strip 1 is provided with a first connection member 131, which is used to connect with the outward-opening door and window sash body profile structure 3, so as to drive the first sealing strip 1 to follow the outward-opening door and window sash body profile structure 3 to perform window opening and window closing actions, and then when performing the window closing action, the first sealing strip 1 is moved to between the outward-opening door and window sash body profile structure 3 and the outward-opening door and window frame profile structure 2, and the first sealing structure and the second sealing structure are formed by squeezing the first sealing strip 1 and the outward-opening door and window frame profile structure 2; when performing the window opening action, the first sealing strip 1 is moved out from between the outward-opening door and window sash body profile structure 3 and the outward-opening door and window frame profile structure 2. That is, the first connection member 131 is used to drive the first sealing strip 1 and plays a certain role in maintaining the position of the first sealing strip 1.

[0147] Embodiment 13:

[0148] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the first connecting member 131 is a connecting protrusion, and the connecting protrusion is configured with a first limiting structure; the first connecting fitting member 31 is a connecting groove, and the connecting groove is configured with a second limiting structure; wherein the first limiting structure cooperates with the second limiting structure to fix the connecting protrusion in the connecting groove.

[0149] In practical applications, the first connector 131 is configured as a connecting protrusion, and the first matching connector is configured as a connecting groove. In order to stabilize the connection between the first sealing strip 1 and the outward opening door and window sash body profile structure 3, a limiting structure can be provided on the first connector 131 and the first matching connector, and the connecting protrusion can be more firmly fixed in the connecting groove through the limiting structure.

[0150] Embodiment 14:

[0151] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the first connecting portion 13 also includes: a second connecting member 132; wherein the second connecting member 132 is used to connect to a second connecting fitting 32 configured with the outward-opening door and window sash profile structure 3, so that the first sealing strip 1 maintains the position of the first sealing strip 1 when following the outward-opening door and window sash profile structure 3 to perform window opening and / or window closing actions.

[0152] In this embodiment, the first connecting portion 13 of the first sealing strip 1 is configured with a second connecting member 132, and the second connecting member 132 is used to connect to the second connecting fitting 32 configured with the outward-opening door and window sash profile structure 3. When the first sealing strip 1 follows the outward-opening door and window sash profile structure 3 to perform window opening and / or window closing actions, the first sealing strip 1 will be extruded due to the interference fit, causing it to shift to a non-original position and affect the sealing performance. Therefore, the position of the first sealing strip 1 is maintained by the setting of the second connecting member 132 and the second connecting fitting 32.

[0153] Embodiment 15:

[0154] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the second connecting member 132 includes a first abutting surface for opening the window and / or a first abutting surface for closing the window; the second connecting fitting member 32 includes a second abutting surface for opening the window and / or a second abutting surface for closing the window; wherein the first abutting surface for opening the window abuts against the second abutting surface for opening the window, so as to offset the stress generated by the interference fit of the first sealing structure when the outward-opening door and window sash profile structure 3 performs the window opening action; wherein the first abutting surface for closing the window abuts against the second abutting surface for closing the window, so as to offset the stress generated by the interference fit of the first sealing structure and the second sealing structure when the outward-opening door and window sash profile structure 3 performs the window closing action.

[0155] In this embodiment, when the first sealing strip 1 follows the outward-opening door and window sash body profile structure 3 to perform window opening and / or window closing actions, the first sealing strip 1 will be offset to a non-original position due to the extrusion caused by the interference fit, affecting the sealing performance. In practical applications, the extrusion caused by the interference fit will generate stress corresponding to the first sealing structure and stress corresponding to the second sealing structure. In order to offset or absorb the stress, it is necessary to set a component for offsetting or absorbing in the opposite direction of the stress generated by the first sealing structure and the second sealing structure.

[0156] In actual application, the first abutment surface for window opening and the second abutment surface for window opening are set to offset the stress generated by the movement of the first sealing structure on the first sealing surface when the outward-opening door and window sash profile structure 3 performs the window opening action; wherein, the first abutment surface for window opening is set as a surface on the first sealing strip 1 that is perpendicular to the direction of the stress generated by the movement of the first sealing component 121 on the first sealing surface, and the second abutment surface for window opening is set as a surface on the outward-opening door and window sash profile structure 3 that corresponds to the first abutment surface for window opening, thereby, through the cooperation of the first abutment surface for window opening and the second abutment surface for window opening, the stress generated by the first sealing structure when the window is opened is offset or absorbed.

[0157] The first window closing abutment surface and the second window closing abutment surface are set to offset the stress generated by the movement of the first sealing structure on the first sealing surface and the stress generated by the extrusion of the second sealing structure on the second sealing surface when the outward-opening door and window sash profile structure 3 performs the window closing action; wherein, the first window closing abutment surface is set on the first sealing strip 1 to be perpendicular or substantially perpendicular to the direction of the stress generated by the movement of the first seal 121 on the first sealing surface and the direction of the stress generated by the extrusion of the second seal 122 on the second sealing surface, and the second window closing abutment surface is set on the outward-opening door and window sash profile structure 3 to be the surface corresponding to the first window closing abutment surface, thereby, through the cooperation of the first window closing abutment surface and the second window closing abutment surface, the stress generated by the first sealing structure and the second sealing structure when the window is opened is offset or absorbed.

[0158] Embodiment 16:

[0159] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the first sealing portion 12 further includes: a supporting structure 14 arranged on the second connecting surface; wherein the first sealing member 121 and the second sealing member 122 are connected to the supporting structure 14.

[0160] In actual applications, in order to adapt to the size and shape of the outward-opening door and window sash profile structure 3 and the outward-opening door and window frame profile structure 2 in different door and window systems, the first sealing strip 1 can also be provided with a support structure 14 in the first sealing portion 12, and the support structure 14 is used to set the first seal 121 and the second seal 122 to adjust the positions of the first seal 121 and the second seal 122 to correspond to the first sealing fitting 21 and the second sealing fitting 22 to form the first sealing structure and the second sealing structure, thereby completing the integrated multi-stage sealing structure design.

[0161] Embodiment 17:

[0162] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, reinforcing ribs 141 are provided in the support structure 14 .

[0163] In practical applications, in order to enhance the strength of the support structure 14 so that it does not deform when subjected to the stress generated by the interference fit of the first sealing structure and the second sealing structure, a number of reinforcing ribs 141 may be added to the support structure 14 to enhance the overall strength.

[0164] Embodiment 18:

[0165] One of the optional implementation schemes of the multi-stage sealing system for outward-opening doors and windows, the multi-stage sealing system for outward-opening doors and windows, further includes: a second sealing strip 4; wherein the position fixing component also includes a third connecting fitting 24 configured on the outward-opening door and window frame profile structure 2; wherein the second sealing strip 4 is connected to the third connecting fitting 24; wherein the sealing fitting assembly also includes a third sealing fitting 33 configured on the outward-opening door and window sash profile structure 3; wherein when the outward-opening door and window sash profile structure 3 performs the window closing action, the second sealing strip 4 and the third sealing fitting 33 form a third sealing structure.

[0166] In this embodiment, the outward opening door and window multi-stage sealing system provided in this embodiment also includes a second sealing strip 4 arranged between the outward opening door and window frame profile structure 2 and the outward opening door and window sash body profile structure 3. The second sealing strip 4 is connected to the third connecting fitting 24 of the outward opening door and window frame profile structure 2, so that when the window is closed, the second sealing strip 4 and the third sealing fitting 33 of the outward opening door and window sash body profile structure 3 form a third sealing structure, realizing the third-level sealing in the outward opening door and window multi-stage sealing system, and further improving the overall sealing performance.

[0167] Embodiment 19:

[0168] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the second sealing strip 4 comprises: a second strip supporting body 41 having a third connecting surface and a fourth connecting surface; wherein the third connecting surface is provided with a second connecting portion 43, and the second connecting portion 43 is used to connect with a second connecting fitting 32; wherein the third connecting surface is provided with a second sealing portion 42, and the second sealing portion 42 is used to form a third sealing structure with a third sealing fitting 33 configured with the sash profile structure 3 of the outward-opening door and window when performing a window closing action.

[0169] In this embodiment, the second connection portion 43 of the third connection surface of the second rubber strip support body 41 is connected to the outward-opening door and window frame profile structure 2, and the second sealing portion 42 of the fourth connection surface of the second rubber strip support body 41 forms a third sealing structure with the outward-opening door and window sash body profile structure 3. Different from the first sealing rubber strip 1, the second connection portion 43 of the second sealing rubber strip 4 is connected to the outward-opening door and window frame profile structure 2, and the second sealing portion 42 forms a third sealing structure with the outward-opening door and window sash body profile structure 3, that is, the second sealing rubber strip 4 is a fixing member provided on the outward-opening door and window frame profile structure 2, and when the outward-opening door and window sash body profile structure 3 performs the window closing action, it approaches and abuts against the outward-opening door and window frame profile structure 2 to form the third sealing structure.

[0170] Embodiment 20:

[0171] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the second connecting portion 43 comprises: a third connecting member; wherein the third connecting member is used to connect to a third connecting fitting 24 configured with the outward-opening door and window frame profile structure 2; the third connecting member is a connecting protrusion, and the connecting protrusion is configured with a first limiting structure; the third connecting fitting 24 is a connecting groove, and the connecting groove is configured with a second limiting structure; wherein the first limiting structure cooperates with the second limiting structure to fix the connecting protrusion in the connecting groove.

[0172] In this embodiment, the third connecting member of the second connecting portion 43 is connected to the third connecting fitting 24 configured on the outward-opening door and window frame profile structure 2 to achieve the connection between the second sealing strip 4 and the outward-opening door and window frame profile structure 2, and the connecting protrusion is more firmly fixed in the connecting groove through the limiting structure, thereby improving the connection stability between the second sealing strip 4 and the outward-opening door and window frame profile structure 2.

[0173] Embodiment 21:

[0174] In one optional implementation scheme of the multi-stage sealing system for outward-opening doors and windows, the second sealing portion 42 comprises: a third sealing component; wherein the third sealing component is used to form a third sealing structure with a third sealing fitting component 33 configured with the outward-opening door and window sash profile structure 3 when performing a window closing action; the third sealing component is configured as a third sealing protrusion; the third sealing fitting component 33 is a third sealing surface; wherein the third sealing protrusion and the third sealing surface form a third sealing structure through a third interference fit.

[0175] In the present embodiment, a third sealing structure is formed by the cooperation between the third sealing component of the second sealing portion 42 and the third sealing fitting 33 of the outward-opening door and window sash profile structure 3. The third sealing structure achieves a third interference fit by squeezing the second sealing strip 4 by the outward-opening door and window sash profile structure 3 when performing the window closing action, thereby further improving the sealing and waterproof performance of the third sealing structure. Thus, a multi-stage sealing system for outward-opening doors and windows including a first sealing structure, a second sealing mechanism and a third sealing structure is formed.

[0176] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top", "bottom", "inside", "outside", "inner side", "outer side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Among them, "inside" refers to an internal or enclosed area or space. "Periphery" refers to the area surrounding a specific component or a specific area.

[0177] In the description of the embodiments of the present invention, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0178] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "assemble" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0179] In the description of the embodiments of the present invention, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0180] In the description of the embodiments of the present invention, it is to be understood that "-" and "~" represent the range between two values, and the range includes the endpoints. For example: "AB" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0181] In the description of the embodiments of the present invention, the term "and / or" herein is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " herein generally indicates that the associated objects before and after are in an "or" relationship.

[0182] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage sealing system for outward-opening doors and windows, characterized in that: include: First sealing strip; Position fixing components; Seal fitting components; Wherein, the position fixing assembly comprises a first connecting fitting and a second connecting fitting arranged on the profile structure of the outward opening door and window sash body; Wherein, the first sealing strip is connected to the first connecting fitting and the second connecting fitting; Wherein, the sealing matching assembly comprises a first sealing matching part and a second sealing matching part arranged on the profile structure of the outward opening door and window frame; Wherein, when the outward opening door and window sash body profile structure performs a window closing action, the first sealing strip and the first sealing fitting form a first sealing structure, and the first sealing strip and the second sealing fitting form a second sealing structure; Wherein, the first sealing structure is a sealing structure close to the outside, and the second sealing structure is a sealing structure close to the inside; Wherein, the distance from the sealing position of the second sealing structure to the rubber strip supporting body is smaller than the distance from the sealing position of the first sealing structure to the rubber strip supporting body; The first sealing rubber strip comprises a first rubber strip supporting body having a first connecting surface and a second connecting surface; the first connecting surface is provided with a first connecting portion, the second connecting surface is provided with a first sealing portion, and the first sealing portion comprises a first sealing member and a second sealing member; The first sealing member is used to form a first sealing structure with a first sealing member configured with the frame profile structure of the outward-opening door and window when performing the window closing action; the second sealing member is used to form a second sealing structure with a second sealing member configured with the frame profile structure of the outward-opening door and window when performing the window closing action; Wherein, the first sealing member is a first sealing protrusion; the first sealing fitting member is a first sealing surface; the first sealing protrusion and the first sealing surface form a first sealing structure through a first interference fit, or form a first sealing structure by leaving an isobaric channel between the first sealing protrusion and the first sealing surface; Wherein, the second sealing member is a second sealing protrusion; the second sealing fitting member is a second sealing surface; the second sealing protrusion and the second sealing surface form a second sealing structure through a second interference fit; When an isobaric channel is left between the first sealing protrusion and the first sealing surface, the first sealing surface is provided with a blocking protrusion, the blocking protrusion is provided outside the position where the first sealing protrusion points to the first sealing surface, and the isobaric channel is an interlaced channel between the blocking protrusion and the first sealing protrusion, when a first sealing structure is formed, the first sealing surface is provided with a plurality of guide protrusions; wherein the guide protrusion is provided inside the position where the first sealing protrusion points to the first sealing surface, and the annular guide protrusion around the outward-opening door and window sash body profile structure forms a guide drip line; When the first sealing fitting is a first sealing surface, the first sealing protrusion and the first sealing surface form a first sealing structure through a first interference fit, and the interference amount of the second interference fit is greater than the interference amount of the first interference fit; when the first sealing structure and the second sealing structure perform the window closing action, a sealed space with an internal air pressure greater than the atmospheric pressure is formed.

2. The multi-stage sealing system for outward-opening doors and windows according to claim 1, characterized in that: A sealing member connecting member is provided between the first sealing member and the second sealing member; Wherein, the first seal, the second seal and the seal connector form a groove facing the outward opening door and window frame profile structure; Wherein, the annular groove around the outward opening door and window sash body profile structure constitutes a drainage groove.

3. The multi-stage sealing system for outward-opening doors and windows according to any one of claims 1 to 2, characterized in that: The first sealing surface has: Buffer segment; Sealing section; Wherein, the buffer section is a portion extending outward from the sealing position on the first sealing surface; Wherein, the sealing section is a portion extending inward from the sealing position on the first sealing surface; Wherein, the buffer section, the first sealing protrusion and the outward-opening door and window sash body profile structure form a rainwater buffer space.

4. The multi-stage sealing system for outward-opening doors and windows according to claim 3, characterized in that: The buffer section is provided with a drainage channel.

5. The multi-stage sealing system for outward-opening doors and windows according to claim 1, characterized in that: The first connecting portion comprises: a first connecting member; Wherein, the first connecting member is used to connect with the first connecting fitting so that the first sealing strip follows the outward opening door and window sash body profile structure to perform window opening and window closing actions.

6. The multi-stage sealing system for outward-opening doors and windows according to claim 5, characterized in that: The first connecting member is a connecting protrusion, and the connecting protrusion is provided with a first limiting structure; The first connection fitting is a connection groove, and the connection groove is provided with a second limiting structure; Wherein, the first limiting structure cooperates with the second limiting structure to fix the connecting protrusion in the connecting groove.

7. The multi-stage sealing system for outward-opening doors and windows according to claim 1, characterized in that: The first connecting portion further includes: a second connecting member; Wherein, the second connecting member is used to connect with the second connecting fitting configured in the outward-opening door and window sash profile structure, so that the first sealing strip maintains the position of the first sealing strip when it follows the outward-opening door and window sash profile structure to perform window opening and / or window closing actions.

8. The multi-stage sealing system for outward-opening doors and windows according to claim 7, characterized in that: The second connecting member includes a first abutting surface for opening a window and / or a first abutting surface for closing a window; The second connecting fitting comprises an opening window second abutment surface and / or a closing window second abutment surface; The first abutting surface of the window opening abuts against the second abutting surface of the window opening, so as to offset the stress generated by the interference fit of the first sealing structure when the profile structure of the outward-opening door and window sash performs the window opening action; The first window closing abutment surface abuts against the second window closing abutment surface to offset the stress generated by the interference fit of the first sealing structure and the second sealing structure when the outward opening door and window sash profile structure performs the window closing action.

9. The multi-stage sealing system for outward-opening doors and windows according to claim 1, characterized in that: The first sealing portion further includes: A support structure disposed on the second connection surface; Wherein, the first sealing member and the second sealing member are connected to the supporting structure.

10. The multi-stage sealing system for outward-opening doors and windows according to claim 9, characterized in that: Reinforcing ribs are arranged in the supporting structure.

11. The multi-stage sealing system for outward-opening doors and windows according to claim 1, characterized in that: Also includes: Second sealing strip; Wherein, the position fixing assembly further comprises a third connecting fitting configured on the profile structure of the outward opening door and window frame; Wherein, the second sealing strip is connected to the third connecting fitting; Wherein, the sealing matching assembly also includes a third sealing matching piece configured on the profile structure of the outward opening door and window sash body; Wherein, when the outward-opening door and window sash body profile structure performs the window closing action, the second sealing strip and the third sealing matching component form a third sealing structure.

12. The multi-stage sealing system for outward-opening doors and windows according to claim 11, characterized in that: The second sealing strip comprises: A second rubber strip supporting body having a third connecting surface and a fourth connecting surface; Wherein, the third connecting surface is provided with a second connecting portion, and the second connecting portion is used to connect with the second connecting fitting; Wherein, the third connecting surface is provided with a second sealing portion, and the second sealing portion is used to form a third sealing structure with a third sealing fitting configured in the profile structure of the outward-opening door and window sash when performing the window closing action.

13. The multi-stage sealing system for outward-opening doors and windows according to claim 12, characterized in that: The second connecting portion comprises: A third connecting member; Wherein, the third connecting member is used to connect with the third connecting matching member configured in the profile structure of the outward-opening door and window frame.

14. The outward opening door and window multi-stage sealing system according to claim 13, characterized in that: The third connecting member is a connecting protrusion, and the connecting protrusion is provided with a first limiting structure; The third connection fitting is a connection groove, and the connection groove is provided with a second limiting structure; Wherein, the first limiting structure cooperates with the second limiting structure to fix the connecting protrusion in the connecting groove.

15. The multi-stage sealing system for outward-opening doors and windows according to claim 12, characterized in that: The second sealing portion comprises: A third seal; The third sealing component is used to form a third sealing structure with the third sealing matching component configured in the profile structure of the outward-opening door and window sash body when performing the window closing action.

16. The multi-stage sealing system for outward-opening doors and windows according to claim 15, characterized in that: The third sealing member is configured as a third sealing protrusion; The third sealing fitting is a third sealing surface; Wherein, the third sealing protrusion and the third sealing surface form a third sealing structure through a third interference fit.

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