A kind of broken bridge aluminium alloy door and window section assembly structure

Abstract

The application discloses a kind of broken bridge aluminium alloy door and window section assembly structure, belong to building door and window section assembly technical field, comprising: first broken bridge aluminium alloy section, second broken bridge aluminium alloy section and the assembly component of being clamped between the splicing end portion of two.It includes the outside connecting piece of being inserted between adjacent outdoor side aluminium section, the inside connecting piece of being inserted between adjacent indoor side aluminium section and the low thermal conductivity load bearing seat of being clamped between two;Outdoor side aluminium section splicing end portion is equipped with shunt passage, the upper branch of shunt passage is connected to pressure chamber, and the lower branch is used for drainage.Pressure chamber is equipped with pressure transmission diaphragm, pressure transmission diaphragm abuts wedge-shaped transmission block, and wedge-shaped transmission block is respectively inclined to outside connecting piece and low thermal conductivity load bearing seat.The application can improve splicing stability, water tightness and heat insulation continuity.

Description

Technical Field

[0001] This invention relates to the field of building door and window profile assembly technology, and in particular to an assembly structure for thermally broken aluminum alloy door and window profiles. Background Technology

[0002] Thermally broken aluminum alloy doors and windows typically consist of exterior aluminum profiles, interior aluminum profiles, and a thermal break strip between them. This reduces heat transfer between the interior and exterior aluminum profiles, making them widely used in energy-efficient building doors and windows. At door and window frames, sashes, mullions, and corners, adjacent thermally broken aluminum alloy profiles usually need to be spliced ​​at the ends. These splices must withstand wind pressure, opening and closing vibrations, and their own weight, while maintaining airtightness, watertightness, and thermal insulation continuity.

[0003] Existing profile splicing structures mostly use corner brackets, screws, pins, or metal reinforcements for fixing. While these structures can establish a certain connection strength during assembly, their splicing effect mainly depends on the initial installation pre-tightening force. After long-term service, outdoor wind pressure, rain erosion, temperature changes, and repeated opening and closing can easily cause slight loosening at the splicing ends, changes in end-face gaps, or a decrease in sealing compression. To improve connection strength, some structures add through-type metal connectors; however, this method may create an additional heat transfer path between the outdoor and indoor aluminum profiles, weakening the thermal insulation effect of the thermally broken structure.

[0004] Furthermore, existing drainage structures at the splicing ends typically focus on draining liquid water that enters the cavity, while giving less consideration to the synergistic relationship between air pressure, water droplets, and the stress on the splicing joint on the outdoor side. Ordinary sealing strips or drainage channels are insufficient to convert changes in external pressure into compensating compression at the splicing ends, and simply adding seals may lead to increased assembly resistance and long-term compression fatigue. Therefore, how to achieve stable connection, drainage diversion, pressure compensation, and low thermal conductivity load-bearing capacity at the profile splicing joint without disrupting the thermal break path has become a technical problem that requires further improvement in the assembly structure of thermally broken aluminum alloy doors and windows. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides an assembly structure for thermally broken aluminum alloy door and window profiles.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a thermally broken aluminum alloy door and window profile assembly structure, comprising a first thermally broken aluminum alloy profile, a second thermally broken aluminum alloy profile whose ends are spliced ​​with the first thermally broken aluminum alloy profile, and an assembly assembly sandwiched between the spliced ​​ends of the first thermally broken aluminum alloy profile and the second thermally broken aluminum alloy profile.

[0007] Both the first thermally broken aluminum alloy profile and the second thermally broken aluminum alloy profile include: an outdoor aluminum profile, a thermal insulation strip embedded in the inner side of the outdoor aluminum profile, and an indoor aluminum profile embedded in the inner side of the thermal insulation strip.

[0008] The assembly includes: an outer connector inserted between adjacent outdoor aluminum profiles, an inner connector inserted between adjacent indoor aluminum profiles, and a low thermal conductivity bearing seat sandwiched between the outer connector and the inner connector.

[0009] The splicing end of the outdoor aluminum profile is provided with a diversion channel, which includes: an inlet section communicating with the outdoor splicing seam, an upper branch connected to the upper part of the inlet section, and a lower branch connected to the lower part of the inlet section.

[0010] The upper branch is connected to a pressure tapping chamber, and a pressure transmitting diaphragm is provided in the pressure tapping chamber. A wedge-shaped transmission block is abutted on the side of the pressure transmitting diaphragm near the low thermal conductivity bearing seat. One side of the wedge-shaped transmission block obliquely abuts the outer connecting member, and the other side of the wedge-shaped transmission block obliquely abuts the low thermal conductivity bearing seat.

[0011] In a preferred embodiment of the present invention, the outdoor aluminum profile end of the first thermally broken aluminum alloy profile is provided with a first outer assembly cavity, and the outdoor aluminum profile end of the second thermally broken aluminum alloy profile is provided with a second outer assembly cavity. One end of the outer connector is inserted into the first outer assembly cavity, and the other end of the outer connector is inserted into the second outer assembly cavity.

[0012] In a preferred embodiment of the present invention, the indoor side aluminum profile end of the first thermally broken aluminum alloy profile is provided with a first inner assembly cavity, and the indoor side aluminum profile end of the second thermally broken aluminum alloy profile is provided with a second inner assembly cavity. One end of the inner connector is inserted into the first inner assembly cavity, and the other end of the inner connector is inserted into the second inner assembly cavity.

[0013] In a preferred embodiment of the present invention, the low thermal conductivity bearing seat includes an outer bearing surface that abuts against the wedge-shaped transmission block, an inner bearing surface that abuts against the inner connecting member, and a seat body portion connected between the outer bearing surface and the inner bearing surface, wherein the outer connecting member and the inner connecting member are spaced apart.

[0014] In a preferred embodiment of the present invention, the inlet section includes an inlet port opened at the outdoor splice seam and a deflecting guide cavity connected to the inner side of the inlet port; the inlet of the upper branch is opened on the upper side wall or the leeward side wall of the deflecting guide cavity, and the inlet of the lower branch is opened at the lower part of the deflecting guide cavity.

[0015] In a preferred embodiment of the present invention, a droplet separation chamber is provided between the deflection guide cavity and the lower branch, the inlet of the upper branch is higher than the bottom wall of the droplet separation chamber, and the inlet of the upper branch is offset from the inlet.

[0016] In a preferred embodiment of the present invention, the pressure tapping chamber includes a first cavity connected to the upper branch and a second cavity connected to the side of the first cavity near the wedge-shaped transmission block, and the periphery of the pressure transmitting diaphragm is sandwiched between the first cavity and the second cavity.

[0017] In a preferred embodiment of the present invention, the pressure-transmitting diaphragm is provided with a pushing protrusion on the side facing the wedge-shaped transmission block, and the wedge-shaped transmission block is provided with a pressure-receiving end face at the end facing the pressure-transmitting diaphragm. The pushing protrusion abuts against the pressure-receiving end face, and no connecting member is provided between the pushing protrusion and the pressure-receiving end face.

[0018] In a preferred embodiment of the present invention, the wedge-shaped transmission block includes an outer inclined surface abutting against the outer connecting member, an inner inclined surface abutting against the low thermal conductivity bearing seat, and a sealing pressing part located between the outer inclined surface and the inner inclined surface. The sealing pressing part abuts against a splicing sealing member, and the splicing sealing member is sandwiched between the splicing end faces of the first thermally broken aluminum alloy profile and the second thermally broken aluminum alloy profile.

[0019] In a preferred embodiment of the present invention, the outer connector includes a backstop limiting surface disposed opposite to the outdoor aluminum profile, and a sliding guide surface extending along the length direction of the outdoor aluminum profile; the low thermal conductivity bearing seat includes a low thermal conductivity seat body, and segmented reinforcing portions disposed at intervals within the low thermal conductivity seat body, with a spacer groove provided between adjacent segmented reinforcing portions.

[0020] This invention addresses the shortcomings of the prior art and has the following beneficial effects:

[0021] (1) By setting up an assembly component between the first thermally broken aluminum alloy profile and the second thermally broken aluminum alloy profile, and making the assembly component form a combination structure of external connection, internal connection, pressure tapping and diversion and wedge force transmission, the present invention can simultaneously establish mechanical assembly support and pressure compensation path at the profile splicing point. Compared with the existing structure that mainly relies on corner brackets or screws for one-time fastening, the present invention can improve the connection stability of the splicing end, and further take into account the sealing maintenance and thermal insulation continuity of the thermally broken profile.

[0022] (2) By setting a diversion channel at the splicing end of the aluminum profile on the outdoor side, and making the diversion channel include an inlet section, an upper branch and a lower branch, the air pressure and liquid water at the splicing joint on the outdoor side enter the pressure tapping chamber and the drainage path respectively. Compared with the existing door and window splicing structure that only sets ordinary drainage channels or sealing strips, the present invention can reduce the possibility of rainwater retention and accidental entry into the pressure tapping part, and further improve the water tightness stability of the splicing joint under wind and rain conditions.

[0023] (3) By setting a pressure-transmitting diaphragm in the pressure tapping chamber and having the pressure-transmitting diaphragm abut against the wedge-shaped transmission block, and the wedge-shaped transmission block obliquely abutting against the outer connecting piece and the low thermal conductivity bearing seat respectively, the pressure change in the pressure tapping chamber can be converted into the force transmission displacement of the wedge-shaped transmission block. Compared with the existing splicing structure that only relies on the installation pre-tightening force to maintain the pressing state, the present invention can form a compensation effect on the outer connecting piece and the splicing sealing part under the action of service pressure, and further reduce the risk of splicing loosening and sealing attenuation.

[0024] (4) The present invention inserts the outer connector between adjacent outdoor aluminum profiles and the inner connector between adjacent indoor aluminum profiles, and sandwiches a low thermal conductivity bearing seat between them, so that the splicing load can be transmitted to the inner connector through the wedge-shaped transmission block and the low thermal conductivity bearing seat. Compared with the existing through-type metal connectors, the present invention can reduce the continuous metal heat transfer path between the inner and outer aluminum profiles, and in combination with the diversion pressure tapping and wedge compensation structure, further improve the load-bearing, sealing and energy-saving effect of the splicing of door and window profiles. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0027] Figure 2 This is a partial view of the diversion channel of the present invention;

[0028] Figure 3 This is a partial view of the wedge-shaped transmission block and the compensating clamping mechanism of the present invention;

[0029] Figure 4 This is an exploded view of the assembled components.

[0030] In the diagram: 1. First thermally broken aluminum alloy profile; 11. First outdoor aluminum profile; 12. First thermal break strip; 13. First indoor aluminum profile; 14. First outer assembly cavity; 15. First inner assembly cavity; 2. Second thermally broken aluminum alloy profile; 21. Second outdoor aluminum profile; 22. Second thermal break strip; 23. Second indoor aluminum profile; 24. Second outer assembly cavity; 25. Second inner assembly cavity; 3. Assembly assembly; 31. Outer connector; 311. Backstop limiting surface; 312. Sliding guide surface; 32. Inner connector; 33. Low thermal conductivity bearing seat; 331. Outer bearing... 332. Pressure surface; 333. Inner pressure bearing surface; 334. Seat body; 335. Low thermal conductivity seat body; 336. Segmented reinforcement part; 337. Spacing groove; 4. Outdoor side splicing seam; 5. Diversion channel; 51. Inlet section; 511. Inlet port; 512. Reversing guide cavity; 52. Upper branch; 53. Lower branch; 54. Droplet separation cavity; 6. Pressure tapping cavity; 61. First cavity; 62. Second cavity; 7. Pressure transmitting diaphragm; 71. Pushing protrusion; 8. Wedge-shaped transmission block; 81. Pressure-bearing end face; 82. Outer inclined surface; 83. Inner inclined surface; 84. Sealing pressing part; 9. Splicing seal. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] In the description of this invention, the outdoor side refers to the side of the door or window facing the outside of the building or exposed to wind and rain after installation, the indoor side refers to the side of the door or window facing the inside of the building after installation, the splicing end refers to the end area where adjacent thermally broken aluminum alloy profiles are joined or overlapped, the length direction refers to the direction in which the thermally broken aluminum alloy profile extends, and the upper and lower positions can be determined according to the actual installation state of the door or window or the drainage direction. The above positions are only used to illustrate the relative relationship between the various structures and do not constitute a limitation on the installation posture of this invention.

[0036] like Figures 1-4 As shown, this embodiment provides an assembly structure for thermally broken aluminum alloy door and window profiles, which includes a first thermally broken aluminum alloy profile 1, a second thermally broken aluminum alloy profile 2, and an assembly component 3. The end of the second thermally broken aluminum alloy profile 2 is spliced ​​with the end of the first thermally broken aluminum alloy profile 1. The assembly component 3 is sandwiched between the spliced ​​ends of the first thermally broken aluminum alloy profile 1 and the second thermally broken aluminum alloy profile 2, so that the two adjacent thermally broken aluminum alloy profiles form an outdoor side insertion limit, an indoor side insertion limit, and a low thermal conductivity load-bearing support relationship between them at the splicing position, thereby avoiding the splicing point from being fastened by screws or corner brackets alone.

[0037] The first thermally broken aluminum alloy profile 1 includes a first outdoor aluminum profile 11, a first thermal break strip 12, and a first indoor aluminum profile 13. The first thermal break strip 12 is embedded between the first outdoor aluminum profile 11 and the first indoor aluminum profile 13. The second thermally broken aluminum alloy profile 2 includes a second outdoor aluminum profile 21, a second thermal break strip 22, and a second indoor aluminum profile 23. The second thermal break strip 22 is embedded between the second outdoor aluminum profile 21 and the second indoor aluminum profile 23. The first outdoor aluminum profile 11 and the second outdoor aluminum profile 21 are located on the outdoor side after the door and window are installed. The first indoor aluminum profile 13 and the second indoor aluminum profile 23 are located on the indoor side after the door and window are installed. The first thermal break strip 12 and the second thermal break strip 22 are used to block the direct metal heat conduction path between the outdoor aluminum profile and the indoor aluminum profile.

[0038] Specifically, an outdoor splicing seam 4 is formed between the splicing end of the first thermally broken aluminum alloy profile 1 and the splicing end of the second thermally broken aluminum alloy profile 2. The outdoor splicing seam 4 is located between the adjacent end faces of the first outdoor aluminum profile 11 and the second outdoor aluminum profile 21. The outdoor splicing seam 4 is not simply set as a sealing gap, but is connected to the inlet section 51 of the diversion channel 5, so that the outdoor wind pressure, rainwater scouring and the sealing state of the splicing end can be associated through the diversion channel 5, the pressure tapping chamber 6, the pressure transmitting diaphragm 7 and the wedge-shaped transmission block 8.

[0039] Furthermore, the assembly component 3 includes an outer connector 31, an inner connector 32, and a low thermal conductivity bearing seat 33. The outer connector 31 is disposed between adjacent outdoor aluminum profiles, the inner connector 32 is disposed between adjacent indoor aluminum profiles, and the low thermal conductivity bearing seat 33 is sandwiched between the outer connector 31 and the inner connector 32, and is located near the broken bridge area corresponding to the first thermal insulation strip 12 and the second thermal insulation strip 22, so that the outer connector 31 and the inner connector 32 can transfer force through the low thermal conductivity bearing seat 33 without directly forming a continuous metal contact.

[0040] The first outdoor aluminum profile 11 has a first outer assembly cavity 14 at its end, and the second outdoor aluminum profile 21 has a second outer assembly cavity 24 at its end. The first outer assembly cavity 14 and the second outer assembly cavity 24 extend along the length of the profile and form opposite insertion interfaces at the splicing ends. One end of the outer connector 31 is inserted into the first outer assembly cavity 14, and the other end of the outer connector 31 is inserted into the second outer assembly cavity 24, so that the outer connector 31 spans between the first outdoor aluminum profile 11 and the second outdoor aluminum profile 21, thereby restricting the adjacent outdoor aluminum profiles from misaligning, opening, or separating from each other at the splicing ends.

[0041] The first indoor aluminum profile 13 has a first inner assembly cavity 15 at its end, and the second indoor aluminum profile 23 has a second inner assembly cavity 25 at its end. The first inner assembly cavity 15 and the second inner assembly cavity 25 extend along the length of the profile and form opposite insertion interfaces at their splicing ends. One end of the inner connector 32 is inserted into the first inner assembly cavity 15, and the other end of the inner connector 32 is inserted into the second inner assembly cavity 25, so that the inner connector 32 spans between the first indoor aluminum profile 13 and the second indoor aluminum profile 23, thereby forming an assembly support structure on the indoor side that cooperates with the outer connector 31.

[0042] Specifically, both the outer connector 31 and the inner connector 32 can be hollow tubular parts, channel-shaped parts, frame-shaped parts, or profile parts with plug-in arms. The outer connector 31 can be connected to the first outer assembly cavity 14 and the second outer assembly cavity 24 by interference fit, limit fit, glue-assisted fit or screw-assisted fixing. The inner connector 32 can also be connected to the first inner assembly cavity 15 and the second inner assembly cavity 25 by the same or similar plug-in fixing method. The outer connector 31 and the inner connector 32 are spaced apart in the direction from the outdoor side to the indoor side to avoid the outer connector 31 and the inner connector 32 abutting against each other to form a through metal connection.

[0043] Furthermore, the low thermal conductivity bearing seat 33 includes an outer bearing surface 331, an inner bearing surface 332, and a seat body portion 333 connected between the outer bearing surface 331 and the inner bearing surface 332. The outer bearing surface 331 is disposed facing the wedge-shaped transmission block 8 and is used to receive the clamping force transmitted by the wedge-shaped transmission block 8. The inner bearing surface 332 is disposed facing the inner connecting member 32 and is used to transmit the supporting force to the inner connecting member 32. The seat body portion 333 is disposed between the outer bearing surface 331 and the inner bearing surface 332 and forms the main force-bearing part of the low thermal conductivity bearing seat 33.

[0044] Preferably, the low thermal conductivity bearing seat 33 includes a low thermal conductivity seat body 334 and segmented reinforcing parts 335 spaced apart within the low thermal conductivity seat body 334. A spacer groove 336 is provided between adjacent segmented reinforcing parts 335. The low thermal conductivity seat body 334 can be made of glass fiber reinforced polyamide, rigid polyurethane, polyetheretherketone, polyoxymethylene, or other engineering plastic materials with certain compressive strength and low thermal conductivity. The segmented reinforcing parts 335 can be integrally formed with the low thermal conductivity seat body 334, or they can be used as short reinforcing structures embedded in the low thermal conductivity seat body 334. The spacer groove 336 is used to block continuous heat conduction between reinforcing structures and provide buffer space for local deformation.

[0045] Specifically, the segmented reinforcement 335 can be spaced out along the height, width, or length of the low thermal conductivity bearing seat 33. The segmented reinforcement 335 should not be a continuous metal piece that connects the outer connector 31 and the inner connector 32 to avoid forming an additional thermal bridge between the outdoor and indoor sides. When the segmented reinforcement 335 uses a metal insert, the metal insert should be covered or separated by the low thermal conductivity bearing body 334 so that it is only used to improve the local compressive, shear, or deformation resistance, and does not form a continuous thermal conduction path across the broken bridge area.

[0046] Furthermore, the outer connector 31 includes a backstop limiting surface 311 and a sliding guide surface 312. The backstop limiting surface 311 is disposed opposite to the corresponding limiting wall in the first outer assembly cavity 14 or the second outer assembly cavity 24, and is used to restrict the outer connector 31 from exiting in the direction of disengaging from the assembly cavity. The sliding guide surface 312 extends along the length direction of the outdoor aluminum profile, and is used to guide the outer connector 31 into the first outer assembly cavity 14 and the second outer assembly cavity 24 during the assembly process, and allow the outer connector 31 to make minor force adjustments within a limited range when the wedge-shaped transmission block 8 generates compensating pressure.

[0047] Specifically, the anti-reverse limiting surface 311 can be configured as a stepped surface, an undercut surface, a toothed surface, a beveled shoulder surface, or a limiting plane that abuts against the inner wall of the assembly cavity. The sliding guide surface 312 can be configured as a straight guide surface, a rounded transition guide surface, or a guide surface with a chamfer. After the anti-reverse limiting surface 311 and the sliding guide surface 312 are engaged, the outer connecting piece 31 can be smoothly inserted into the assembly cavity during the assembly stage, and can withstand the oblique clamping force from the wedge-shaped transmission block 8 during the service stage without easily coming loose from the assembly cavity.

[0048] Furthermore, a diversion channel 5 is provided at the splicing end of the outdoor aluminum profile. The diversion channel 5 includes an inlet section 51 connected to the outdoor splicing seam 4, an upper branch 52 connected to the upper part of the inlet section 51, and a lower branch 53 connected to the lower part of the inlet section 51. The inlet section 51 is used to receive the wind pressure airflow and a small amount of rainwater entering from the outdoor splicing seam 4. The upper branch 52 is used to transmit the pressure to the pressure tapping chamber 6. The lower branch 53 is used to discharge the liquid water downwards, so that the gas phase pressure and liquid water entering the outdoor splicing seam 4 are diverted and treated at the splicing end.

[0049] The inlet section 51 includes an inlet 511 located at the outdoor splice seam 4 and a deflecting guide cavity 512 connected to the inside of the inlet 511. The inlet 511 can be located between the adjacent end faces of the first outdoor aluminum profile 11 and the second outdoor aluminum profile 21, or it can be located at the outer gap formed after the two overlap, snap-fit ​​or butt joint. The deflecting guide cavity 512 is connected to the inside of the inlet 511, so that the airflow and water droplets entering from the outdoor splice seam 4 do not directly impact the pressure tapping cavity 6, but undergo a change in direction, velocity attenuation and droplet separation in the deflecting guide cavity 512.

[0050] Specifically, the inlet of the upper branch 52 is located on the upper side wall or the leeward side wall of the deflection guide cavity 512, and the inlet of the lower branch 53 is located at the lower part of the deflection guide cavity 512. The inlet position of the upper branch 52 is higher than the inlet position of the lower branch 53, so that air pressure can enter the pressure tapping cavity 6 through the upper branch 52. Under the action of gravity, deflection obstruction and wall adhesion, water droplets tend to gather at the lower part of the deflection guide cavity 512 and be discharged through the lower branch 53, thereby reducing the possibility of liquid water accidentally entering the pressure tapping cavity 6.

[0051] Furthermore, a droplet separation chamber 54 is provided between the reversing flow guide cavity 512 and the lower branch 53. The droplet separation chamber 54 can be configured as a vertical extension chamber, an expansion chamber, a settling chamber, or a water collection chamber with a stepped bottom wall. The upper part of the droplet separation chamber 54 is connected to the reversing flow guide cavity 512, and the lower part of the droplet separation chamber 54 is connected to the lower branch 53, so that the water droplets entering the reversing flow guide cavity 512 can enter the droplet separation chamber 54, collect downwards, and be discharged.

[0052] The inlet of the upper branch 52 is higher than the bottom wall of the droplet separation chamber 54, and the inlet of the upper branch 52 is offset from the inlet 511. The offset setting means that the inlet of the upper branch 52 does not form a straight through channel with the inlet 511 in the direction of airflow and water droplet entry. The two form a deflection or offset path through the deflection guide cavity 512, so that external rainwater is difficult to directly rush into the upper branch 52 along the inlet 511, while pressure changes can still be transmitted to the pressure tapping chamber 6 through the deflection guide cavity 512 and the upper branch 52.

[0053] Specifically, the lower branch 53 can be connected to the drainage cavity, drainage hole or outdoor drainage gap of the profile itself. The outlet of the lower branch 53 is set towards the outdoor side or towards the drainage direction of the lower part of the profile. When rainwater enters the return flow guiding cavity 512 through the inlet 511, the water droplets are collected through the droplet separation cavity 54 and discharged from the lower branch 53 to the outdoor side or the door and window drainage system, thereby avoiding rainwater from staying at the splicing end for a long time, causing the seal to be soaked, the splicing cavity to be corroded or frozen.

[0054] Furthermore, the upper branch 52 is connected to a pressure tapping chamber 6. The pressure tapping chamber 6 includes a first cavity 61 connected to the upper branch 52 and a second cavity 62 connected to the first cavity 61 near the wedge-shaped transmission block 8. The first cavity 61 is used to receive pressure from the upper branch 52, and the second cavity 62 is used to accommodate the elastic deformation of the pressure transmitting diaphragm 7 toward the wedge-shaped transmission block 8 and to provide force space for the pressure-bearing end face 81 of the wedge-shaped transmission block 8.

[0055] The pressure-transmitting diaphragm 7 is disposed in the pressure tapping chamber 6. The periphery of the pressure-transmitting diaphragm 7 is clamped between the first chamber 61 and the second chamber 62. The periphery of the pressure-transmitting diaphragm 7 can be fixed by a clamping structure between the pressure frame, the slot, the edge, the groove, or the profile cavity wall, so that the central area of ​​the pressure-transmitting diaphragm 7 can be bent and deformed toward the second chamber 62 when the pressure in the first chamber 61 increases, while the periphery of the pressure-transmitting diaphragm 7 remains sealed and fixed to prevent the pressure in the pressure tapping chamber 6 from leaking from the periphery of the diaphragm.

[0056] Preferably, the pressure-transmitting diaphragm 7 can be made of EPDM rubber, silicone rubber, thermoplastic elastomer or weather-resistant rubber material. The thickness, hardness and effective pressure-bearing area of ​​the pressure-transmitting diaphragm 7 can be selected according to the specifications of the door and window profiles, the width of the outdoor splice seam 4 and the design wind pressure, so that it can undergo elastic deformation sufficient to push the wedge-shaped transmission block 8 under the action of normal wind and rain pressure, and can return to the initial state by the elasticity of the material itself after the pressure is removed.

[0057] Furthermore, the pressure-transmitting diaphragm 7 is provided with a pushing protrusion 71 on the side facing the wedge-shaped transmission block 8, and the wedge-shaped transmission block 8 is provided with a pressure-receiving end face 81 on the end facing the pressure-transmitting diaphragm 7. The pushing protrusion 71 abuts against the pressure-receiving end face 81, and no connecting member is provided between the pushing protrusion 71 and the pressure-receiving end face 81. The absence of a connecting member means that the pushing protrusion 71 and the pressure-receiving end face 81 do not form a fixed pulling relationship through screws, rivets, buckles, pull ropes, hinges or adhesives, but achieve unidirectional pushing force transmission by the end face abutting.

[0058] Specifically, when the pressure inside the first cavity 61 increases, the middle part of the pressure-transmitting diaphragm 7 deforms towards the second cavity 62, and the pushing protrusion 71 moves synchronously with the pressure-transmitting diaphragm 7 and pushes against the pressure-receiving end face 81, causing the wedge-shaped transmission block 8 to produce a small displacement along its pressure direction. When the pressure inside the first cavity 61 decreases, the pressure-transmitting diaphragm 7 recovers by its own elasticity, and the pushing protrusion 71 releases or reduces the pushing force on the pressure-receiving end face 81. Since there is no connecting piece between the two, the wedge-shaped transmission block 8 will not pull the pressure-transmitting diaphragm 7 in the opposite direction, thereby reducing the risk of fatigue tearing and peripheral seal failure of the pressure-transmitting diaphragm 7.

[0059] Furthermore, the wedge-shaped transmission block 8 includes an outer inclined surface 82 that abuts against the outer connecting member 31, an inner inclined surface 83 that abuts against the low thermal conductivity bearing seat 33, and a sealing pressing part 84 located between the outer inclined surface 82 and the inner inclined surface 83. The outer inclined surface 82 and the outer connecting member 31 form inclined surface contact or near-inclined surface contact, and the inner inclined surface 83 and the outer bearing surface 331 of the low thermal conductivity bearing seat 33 form inclined surface contact or near-inclined surface contact, so that after the wedge-shaped transmission block 8 is pushed by the pressure transmitting diaphragm 7, the pushing force can be decomposed into lateral pressing force on the outer connecting member 31 and the low thermal conductivity bearing seat 33.

[0060] The sealing and pressing part 84 abuts against the splicing sealing element 9, which is sandwiched between the splicing end faces of the first thermally broken aluminum alloy profile 1 and the second thermally broken aluminum alloy profile 2. The splicing sealing element 9 can be a U-shaped sealing strip, a strip-shaped sealing gasket, a compression sealing strip, or an elastic embedded sealing element. The opening, rib, or compression surface of the splicing sealing element 9 can be set towards the splicing end face, so that the first thermally broken aluminum alloy profile 1 and the second thermally broken aluminum alloy profile 2 form an end face seal through the splicing sealing element 9 after the assembly is completed.

[0061] Specifically, when the wedge-shaped transmission block 8 is pushed by the pushing protrusion 71 and causes displacement, the outer inclined surface 82 generates a pressing force on the outer connecting member 31, and the inner inclined surface 83 generates a pressing force on the low thermal conductivity bearing seat 33. The low thermal conductivity bearing seat 33 then transfers part of the load to the inner connecting member 32 through the inner bearing surface 332. At the same time, the sealing pressing part 84 generates an additional compression effect on the splicing seal 9, so that the splicing seal 9 is compensated and pressed when the wind pressure or rainwater is strong, thereby reducing the risk of seal loosening due to long-term use, temperature difference deformation or installation preload decay at the splicing end face.

[0062] Furthermore, the wedge-shaped transmission block 8 can be made of aluminum alloy, zinc alloy, stainless steel, reinforced nylon or other materials with sufficient compressive strength. When the wedge-shaped transmission block 8 is made of metal, it does not directly and continuously contact the inner connecting member 32, but transmits the load to the inner connecting member 32 through the low thermal conductivity bearing seat 33. When the wedge-shaped transmission block 8 is made of low thermal conductivity reinforcing material, the local heat transfer at the splicing end can be further reduced, but the outer inclined surface 82, the inner inclined surface 83 and the pressure end face 81 should be ensured to have sufficient wear resistance and pressure bearing stability.

[0063] Specifically, the outer inclined surface 82 and the inner inclined surface 83 of the wedge-shaped transmission block 8 can be set as mutually inclined planes, arc surfaces or folded surfaces. A small amount of lubricating coating, wear-resistant pads or low-friction contact surfaces can be provided between the outer inclined surface 82 and the outer connecting piece 31. Anti-slip textures, limiting steps or mating grooves can be provided between the inner inclined surface 83 and the low thermal conductivity bearing seat 33, so as to control the movement sensitivity and compensate for the clamping stability of the wedge-shaped transmission block 8 according to actual needs.

[0064] Furthermore, the splicing seal 9 can be set in the end face area near the outdoor splicing seam 4, or it can be set in the splicing end face area below or inside the wedge-shaped transmission block 8. The compression direction of the splicing seal 9 matches the force direction of the sealing pressing part 84, so that when the wedge-shaped transmission block 8 produces a micro displacement, it can directly or indirectly increase the compression amount of the splicing seal 9, thereby enhancing the water tightness and air tightness of the first thermally broken aluminum alloy profile 1 and the second thermally broken aluminum alloy profile 2 at the splicing point.

[0065] During assembly, the first thermally broken aluminum alloy profile 1 and the second thermally broken aluminum alloy profile 2 can be processed to form the corresponding first outer assembly cavity 14, second outer assembly cavity 24, first inner assembly cavity 15 and second inner assembly cavity 25. The diversion channel 5, pressure tapping cavity 6 and clamping part for installing pressure transmitting diaphragm 7 can be prefabricated or assembled at the splicing end of the outdoor aluminum profile. Then, one end of the outer connector 31 is inserted into the first outer assembly cavity 14 and the other end of the outer connector 31 is inserted into the second outer assembly cavity 24, so that the outer connector 31 spans between the two outdoor aluminum profiles.

[0066] Subsequently, one end of the inner connector 32 is inserted into the first inner assembly cavity 15, and the other end of the inner connector 32 is inserted into the second inner assembly cavity 25, so that the inner connector 32 spans between the two inner aluminum profiles. Then, the low thermal conductivity bearing seat 33 is arranged between the outer connector 31 and the inner connector 32, so that the outer bearing surface 331 of the low thermal conductivity bearing seat 33 faces the inner inclined surface 83 of the wedge-shaped transmission block 8, and the inner bearing surface 332 of the low thermal conductivity bearing seat 33 faces the inner connector 32, and the outer connector 31 and the inner connector 32 are kept at a distance.

[0067] Furthermore, the periphery of the pressure-transmitting diaphragm 7 is sandwiched between the first cavity 61 and the second cavity 62, and the pushing protrusion 71 of the pressure-transmitting diaphragm 7 faces the pressure-receiving end face 81 of the wedge-shaped transmission block 8. The wedge-shaped transmission block 8 is placed in the force transmission space between the outer connector 31, the low thermal conductivity bearing seat 33 and the splicing seal 9, so that the outer inclined surface 82 of the wedge-shaped transmission block 8 obliquely abuts against the outer connector 31, the inner inclined surface 83 of the wedge-shaped transmission block 8 obliquely abuts against the low thermal conductivity bearing seat 33, and the sealing pressing part 84 of the wedge-shaped transmission block 8 abuts against the splicing seal 9.

[0068] Specifically, after the above installation is completed, the first thermally broken aluminum alloy profile 1 and the second thermally broken aluminum alloy profile 2 can be kept in a spliced ​​state by pressing, screw-assisted fixing, corner frame pressing, end face gluing, or profile cavity snap-fitting. The outer connector 31 is responsible for the outdoor splicing limit, the inner connector 32 is responsible for the indoor splicing limit, the low thermal conductivity bearing seat 33 is responsible for the thermal insulation bearing transition between the outer force transmission and the inner support, and the pressure transmission diaphragm 7 and the wedge-shaped transmission block 8 are responsible for the compensating compression under the action of wind and rain pressure.

[0069] During use, when the outdoor splice seam 4 is affected by wind and rain, the outdoor air pressure and a small amount of rainwater can enter the deflection guide cavity 512 through the inlet 511. The water droplets are blocked by the deflection in the deflection guide cavity 512 and flow downward into the droplet separation cavity 54. They are discharged outward through the lower branch 53 or guided into the door and window drainage path. The air pressure enters the first cavity 61 of the pressure tapping cavity 6 through the upper branch 52 located on the upper side wall or the leeward side wall, so that the pressure tapping cavity 6 can sense the pressure change at the outdoor splice seam 4.

[0070] When the pressure inside the first cavity 61 increases, the pressure-transmitting diaphragm 7 deforms toward the second cavity 62 and pushes against the pressure-bearing end face 81 of the wedge-shaped transmission block 8 through the pushing protrusion 71. After the wedge-shaped transmission block 8 produces a slight displacement, it presses the outer connecting piece 31 obliquely through the outer inclined surface 82 and the low thermal conductivity bearing seat 33 obliquely through the inner inclined surface 83. At the same time, it presses the splicing sealing piece 9 through the sealing pressing part 84, thereby automatically increasing the local pressing effect of the splicing end when the external wind and rain pressure increases.

[0071] When the external wind and rain pressure decreases or disappears, the pressure-transmitting diaphragm 7 recovers on its own elasticity, the thrust of the pushing protrusion 71 on the pressure-bearing end face 81 decreases, and the wedge-shaped transmission block 8 remains in its restricted position or undergoes a slight return under the elastic action of the splicing seal 9 and the contact surface. Since no connecting piece is provided between the pushing protrusion 71 and the pressure-bearing end face 81, the pressure-transmitting diaphragm 7 will not be pulled in the opposite direction by the wedge-shaped transmission block 8, so that the pressure tapping chamber 6 and the pressure-transmitting diaphragm 7 can maintain a relatively stable service life under repeated wind pressure changes.

[0072] Furthermore, since the outer connector 31 and the inner connector 32 are spaced apart and the load-bearing transition between them is achieved through the low thermal conductivity bearing seat 33, even if the outer connector 31 and the inner connector 32 are made of metal materials, a continuous metal heat transfer path will not be formed between the first outdoor aluminum profile 11 and the first indoor aluminum profile 13 or between the second outdoor aluminum profile 21 and the second indoor aluminum profile 23. This allows the assembled component 3 to maintain the original thermal insulation continuity of the thermally broken aluminum alloy profile while improving the splicing stability.

[0073] Preferably, the first outdoor aluminum profile 11, the first indoor aluminum profile 13, the second outdoor aluminum profile 21, and the second indoor aluminum profile 23 can be made of 6063-T5 aluminum alloy profiles or aluminum alloy profiles commonly used in building doors and windows. The first thermal break strip 12 and the second thermal break strip 22 can be made of polyamide thermal break strips, glass fiber reinforced polyamide thermal break strips, or other thermal break strips used in building doors and windows. The outer connecting piece 31 and the inner connecting piece 32 can be made of aluminum alloy profiles, zinc-aluminum alloys, or stainless steel according to the size of the doors and windows and the load-bearing requirements. The splicing sealing piece 9 can be made of EPDM rubber sealing strips or silicone rubber sealing strips.

[0074] Furthermore, in different embodiments, the diversion channel 5 can be integrally formed on the splicing end of the first outdoor aluminum profile 11 or the second outdoor aluminum profile 21, or it can be formed by an additional guide member and the outdoor aluminum profile together. The pressure tapping cavity 6 can be integrally formed in the inner cavity of the outdoor aluminum profile, or it can be assembled on the outdoor splicing end by an independent cavity component. The pressure transmitting diaphragm 7 can be installed by clamping with a pressure cap, clamping with a groove, or pressing with a sealing ring, as long as the upper branch 52 can be connected to the first cavity 61 and the pressure transmitting diaphragm 7 can abut against the wedge-shaped transmission block 8.

[0075] Furthermore, in different door and window application scenarios, the first thermally broken aluminum alloy profile 1 and the second thermally broken aluminum alloy profile 2 can be door and window frame profiles, door and window sash profiles, mullion profiles, corner splicing profiles, or reinforced splicing profiles. The splicing angle between the two can be straight butt joint, right angle splicing, oblique angle splicing, or T-shaped splicing. This embodiment takes the end-to-end splicing as an example for explanation, and does not exclude the application of the above-mentioned assembly components 3, diversion channel 5, pressure tapping chamber 6, pressure transmitting diaphragm 7, wedge-shaped transmission block 8, and splicing seal 9 to the end splicing structure of other adjacent thermally broken aluminum alloy profiles.

[0076] Therefore, in this embodiment, an inner and outer partitioned load-bearing structure is formed by the outer connecting piece 31, the inner connecting piece 32 and the low thermal conductivity load-bearing seat 33. A diversion structure for air pressure intake and rainwater discharge is formed by the diversion channel 5, the upper branch 52, the lower branch 53 and the droplet separation chamber 54. A pressure-driven compensation and clamping structure is formed by the pressure taking chamber 6, the pressure transmitting diaphragm 7 and the wedge-shaped transmission block 8. An elastic sealing structure for the splicing end face is formed by the splicing sealing piece 9, so that the splicing of the thermally broken aluminum alloy door and window profile can take into account the splicing stability, water tightness and thermal insulation continuity.

[0077] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the present invention. Although the present invention has been described in conjunction with preferred embodiments, those skilled in the art should understand that the shape, size, material, assembly method and local connection relationship of the above structure can be adjusted or replaced without departing from the technical concept of the present invention, and such adjustments or replacements should be included within the protection scope defined by the claims of the present invention.

Claims

1. A thermally broken aluminum alloy door and window profile assembly structure, characterized in that, It includes a first thermally broken aluminum alloy profile (1), a second thermally broken aluminum alloy profile (2) whose end is spliced ​​with the first thermally broken aluminum alloy profile (1), and an assembly assembly (3) sandwiched between the spliced ​​ends of the first thermally broken aluminum alloy profile (1) and the second thermally broken aluminum alloy profile (2). Both the first thermally broken aluminum alloy profile (1) and the second thermally broken aluminum alloy profile (2) include: an outdoor aluminum profile, a thermal insulation strip embedded in the inner side of the outdoor aluminum profile, and an indoor aluminum profile embedded in the inner side of the thermal insulation strip. The assembly component (3) includes: an outer connector (31) inserted between adjacent outdoor aluminum profiles, an inner connector (32) inserted between adjacent indoor aluminum profiles, and a low thermal conductivity bearing seat (33) sandwiched between the outer connector (31) and the inner connector (32). The splicing end of the outdoor aluminum profile is provided with a diversion channel (5), which includes: an inlet section (51) connected to the outdoor splicing seam (4), an upper branch (52) connected to the upper part of the inlet section (51), and a lower branch (53) connected to the lower part of the inlet section (51). The upper branch (52) is connected to a pressure tapping chamber (6), and a pressure transmitting diaphragm (7) is provided in the pressure tapping chamber (6). The pressure transmitting diaphragm (7) abuts against a wedge-shaped transmission block (8) on the side near the low thermal conductivity bearing seat (33). One side of the wedge-shaped transmission block (8) obliquely abuts against the outer connecting piece (31), and the other side of the wedge-shaped transmission block (8) obliquely abuts against the low thermal conductivity bearing seat (33).

2. The thermal break aluminum alloy door and window profile assembly structure according to claim 1, characterized in that, The first thermally broken aluminum alloy profile (1) has a first outer assembly cavity (14) at the outdoor side aluminum profile end, and the second thermally broken aluminum alloy profile (2) has a second outer assembly cavity (24) at the outdoor side aluminum profile end. One end of the outer connector (31) is inserted into the first outer assembly cavity (14), and the other end of the outer connector (31) is inserted into the second outer assembly cavity (24).

3. The thermal break aluminum alloy door and window profile assembly structure according to claim 1, characterized in that, The first thermally broken aluminum alloy profile (1) has a first inner assembly cavity (15) at the indoor side aluminum profile end, and the second thermally broken aluminum alloy profile (2) has a second inner assembly cavity (25) at the indoor side aluminum profile end. One end of the inner connector (32) is inserted into the first inner assembly cavity (15), and the other end of the inner connector (32) is inserted into the second inner assembly cavity (25).

4. The thermal break aluminum alloy door and window profile assembly structure according to claim 1, characterized in that, The low thermal conductivity bearing seat (33) includes an outer bearing surface (331) that abuts against the wedge-shaped transmission block (8), an inner bearing surface (332) that abuts against the inner connecting member (32), and a seat body portion (333) connecting the outer bearing surface (331) and the inner bearing surface (332). The outer connecting member (31) and the inner connecting member (32) are spaced apart.

5. The thermal break aluminum alloy door and window profile assembly structure according to claim 1, characterized in that, The inlet section (51) includes an inlet (511) opened at the outdoor splice joint (4) and a deflection guide cavity (512) connected to the inside of the inlet (511); the inlet of the upper branch (52) is opened on the upper side wall or the leeward side wall of the deflection guide cavity (512), and the inlet of the lower branch (53) is opened at the lower part of the deflection guide cavity (512).

6. The thermally broken aluminum alloy door and window profile assembly structure according to claim 5, characterized in that, A droplet separation chamber (54) is provided between the deflection guide cavity (512) and the lower branch (53). The inlet of the upper branch (52) is higher than the bottom wall of the droplet separation chamber (54), and the inlet of the upper branch (52) is offset from the inlet (511).

7. The thermally broken aluminum alloy door and window profile assembly structure according to claim 1, characterized in that, The pressure tapping chamber (6) includes a first chamber (61) connected to the upper branch (52) and a second chamber (62) connected to the side of the first chamber (61) near the wedge-shaped transmission block (8). The periphery of the pressure transmitting diaphragm (7) is sandwiched between the first chamber (61) and the second chamber (62).

8. The thermal break aluminum alloy door and window profile assembly structure according to claim 7, characterized in that, The pressure-transmitting diaphragm (7) has a pushing protrusion (71) on one side facing the wedge-shaped transmission block (8), and the wedge-shaped transmission block (8) has a pressure-receiving end face (81) on one end facing the pressure-transmitting diaphragm (7). The pushing protrusion (71) abuts against the pressure-receiving end face (81), and no connecting member is provided between the pushing protrusion (71) and the pressure-receiving end face (81).

9. The thermally broken aluminum alloy door and window profile assembly structure according to claim 1, characterized in that, The wedge-shaped transmission block (8) includes an outer inclined surface (82) that abuts against the outer connecting member (31), an inner inclined surface (83) that abuts against the low thermal conductivity bearing seat (33), and a sealing pressing part (84) located between the outer inclined surface (82) and the inner inclined surface (83). The sealing pressing part (84) abuts against a splicing sealing member (9), which is sandwiched between the splicing end face of the first thermally broken aluminum alloy profile (1) and the second thermally broken aluminum alloy profile (2).

10. The thermal break aluminum alloy door and window profile assembly structure according to claim 1, characterized in that, The outer connector (31) includes a backstop limiting surface (311) disposed opposite to the outdoor aluminum profile, and a sliding guide surface (312) extending along the length of the outdoor aluminum profile; the low thermal conductivity bearing seat (33) includes a low thermal conductivity seat body (334), and segmented reinforcement portions (335) spaced apart within the low thermal conductivity seat body (334), with a spacer groove (336) provided between adjacent segmented reinforcement portions (335).

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