An irregularly shaped inward-opening window system

Abstract

This utility model provides an irregularly shaped inward-opening casement window system, including: a window frame, a window sash, a sealing mechanism, and a connecting mechanism; the window sash is hinged to the window frame, and the connecting mechanism connects the window frame and the window sash; the window frame has a drainage cavity and an installation cavity, the drainage cavity being located on the side of the installation cavity closer to the outside; the sealing mechanism is located on the side of the drainage cavity closer to the window sash, and the connecting mechanism is located in the installation cavity. This utility model, by providing independent drainage and installation cavities on the window frame, and by installing the sealing mechanism and connecting mechanism separately in the drainage and installation cavities, achieves isolation between the two, avoiding interference between the sealing mechanism and the connecting mechanism that could lead to sealing failure. This improves the airtightness and watertightness of the irregularly shaped inward-opening casement window system, ensuring indoor comfort and stability, and can adapt to various irregular shapes, thus improving the system's versatility.

Description

Technical Field

[0001] This utility model relates to the field of building curtain walls, and more specifically to an irregularly shaped inward-opening window system. Background Technology

[0002] In the field of building curtain walls, operable windows, as an important component of the curtain wall system, directly affect the safety, practicality, and aesthetics of a building through their structural design and performance. Traditional building curtain wall facades primarily feature outward-opening windows. However, with the increasing number of super high-rise buildings, the safety hazards exposed during the use of outward-opening windows have become increasingly significant, making it difficult to meet the high safety performance requirements of modern buildings for operable windows.

[0003] Against this backdrop, to adapt to complex architectural shapes, enhance the aesthetics of building exteriors, and expand interior usable space, the application of irregularly shaped inward-opening windows in building curtain walls has been gradually promoted, such as trapezoidal and triangular shapes. However, existing inward-opening window systems, especially those for irregularly shaped windows, often have unreasonable profile construction designs. In most cases, the waterproof sealing strip and window accessories (such as hinges and handles) are placed in the same cavity, causing interference between the waterproof sealing strip and window accessories. This can easily lead to breakage of the waterproof sealing strip or poor sealing, resulting in a significant decrease in the airtightness and watertightness of the inward-opening window. It cannot effectively prevent outdoor airflow and rainwater from entering the room, affecting the comfort and stability of the building's indoor environment. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art and provide an irregularly shaped inward casement window system to solve the technical problem that the waterproof sealing strip and window accessories of the existing irregularly shaped inward casement windows are prone to interference, resulting in a decrease in sealing performance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides an irregularly shaped inward-opening casement window system, which includes: a window frame, a window sash, a sealing mechanism, and a connecting mechanism; the window sash is hinged to the window frame, and the connecting mechanism is connected to the window frame and the window sash; the window frame is provided with a drainage cavity and an installation cavity, the drainage cavity being located on the side of the installation cavity closer to the outside; the sealing mechanism is located on the side of the drainage cavity closer to the window sash, and the connecting mechanism is located in the installation cavity.

[0007] The sealing mechanism includes: a waterproof adhesive strip, a first sealing strip, a second sealing strip, and a third sealing strip; the waterproof adhesive strip, the first sealing strip, the second sealing strip, and the third sealing strip are distributed sequentially from the outdoor side to the indoor side on the window frame; the waterproof adhesive strip, the first sealing strip, the second sealing strip, and the third sealing strip are all continuously arranged along the window frame.

[0008] The window frame includes a first vertical wall, a second vertical wall, a third vertical wall, a first horizontal wall, and a bottom wall. The first, second, and third vertical walls are vertically arranged and sequentially arranged from the side of the window frame closest to the outside towards the inside, and are mounted on the bottom wall. The height of the third vertical wall is less than the height of the first vertical wall but greater than the height of the second vertical wall. The first horizontal wall, second horizontal wall, and bottom wall are horizontally arranged. The first horizontal wall is located at the top of the second vertical wall, with one end connected to the third vertical wall and the other end extending between the second and first vertical walls. A drainage cavity is formed between the first, second, and first horizontal walls and the bottom wall.

[0009] The waterproof adhesive strip is disposed at the top of the first vertical wall, the first sealing strip is disposed on the side of the first vertical wall facing the interior, the second sealing strip is disposed at the top of the first horizontal wall, and the third sealing strip is disposed on the side of the third vertical wall facing the interior; when the window sash presses against the window frame, the window sash abuts against the third sealing strip, the second sealing strip, the first sealing strip, and the waterproof adhesive strip.

[0010] The first vertical wall has several first drainage holes at its bottom, and the second vertical wall has second drainage holes directly opposite the first drainage holes. The first horizontal wall has several third drainage holes located between the second sealing strip and the third vertical wall, with the second drainage holes and the third drainage holes being offset from each other. A first flow channel is formed between the first sealing strip and the second sealing strip, and the first flow channel is connected to the first drainage holes. A second flow channel is formed between the second sealing strip and the third sealing strip, and the second flow channel, the third drainage holes, the second drainage holes, and the first flow channel are sequentially connected.

[0011] The irregular inward-opening window system further includes a water-blocking strip; the water-blocking strip is connected to the first vertical wall, and the water-blocking strip is provided with a fourth drainage hole, which is offset from the first drainage hole, the second drainage hole and the third drainage hole.

[0012] The window frame is further provided with a second horizontal wall and a fourth vertical wall. The second horizontal wall is vertically arranged and located on the side of the third vertical wall away from the second vertical wall. The fourth vertical wall is vertically arranged and located on the side of the second horizontal wall away from the third vertical wall. The mounting cavity is formed between the third vertical wall, the second horizontal wall and the fourth vertical wall.

[0013] The connecting mechanism includes a hinge, a wind brace, and several lock seats; the hinge, the wind brace, and the lock seats are all installed in the mounting cavity; the window sash is connected to the hinge.

[0014] The irregular inward-opening window system further includes: a first transmission mechanism; the first transmission mechanism is located on the side of the window sash away from the hinge; the first transmission mechanism includes: a transmission rod, a first locking point, a first transmission box, and a first handle; the transmission rod is located on the side of the window sash away from the hinge, at least part of the lock seat is located in the mounting cavity on the side of the window frame away from the hinge, the first locking point is connected to the transmission rod; the first transmission box is connected to the transmission rod, and the first handle is detachably connected to the first transmission box.

[0015] The irregular inward-opening window system further includes: a second transmission mechanism; the second transmission mechanism is disposed at the bottom of the window sash; the second transmission mechanism includes: a second locking point, a second transmission box and a second handle; at least part of the lock seat is disposed in the mounting cavity at the bottom of the window frame, the second locking point is connected to the second transmission box; the second handle is detachably connected to the second transmission box.

[0016] The advantages of this utility model compared with the prior art are as follows: This utility model sets independent drainage cavities and installation cavities on the window frame, and installs the sealing mechanism and connecting mechanism separately in the drainage cavity and the installation cavity, thereby isolating the two and avoiding the problem of sealing failure caused by interference between the sealing mechanism and the connecting mechanism. This improves the airtightness and watertightness of the irregular inward casement window system, ensures indoor comfort and stability, and can adapt to various irregular shapes, thus improving the versatility of the system. At the same time, by installing the connecting mechanism in the installation cavity, the connecting mechanism is hidden, reducing the indoor space occupied and improving the overall visual simplicity and aesthetics of the system.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and understandable, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0018] Figure 1 A front view structural diagram of an irregularly shaped inward-opening window system provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the horizontal cross-sectional structure of the window frame;

[0020] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 4 A schematic diagram of the transverse cross-sectional structure of an irregularly shaped inward-opening window system provided by this utility model;

[0022] Figure 5 A schematic diagram of the vertical cross-sectional structure of an irregularly shaped inward-opening window system provided by this utility model on the side away from the hinge;

[0023] Figure 6 A schematic diagram of the lock seat, window sash and window frame of an irregularly shaped inward-opening window system provided by this utility model;

[0024] Figure 7 A schematic diagram of the horizontal cross-sectional structure at the bottom of an irregularly shaped inward-opening window system provided by this utility model;

[0025] Figure 8 A schematic diagram of the wind brace, window sash and window frame of an irregularly shaped inward-opening window system provided by this utility model;

[0026] Figure 9 This is a schematic diagram of the first and second flow channels of an irregularly shaped inward-opening window system provided by this utility model.

[0027] Figure label:

[0028] 1. Window frame; 11. Drainage chamber; 111. First flow channel; 112. Second flow channel; 12. Mounting chamber; 13. First vertical wall; 131. First drainage hole; 14. Second vertical wall; 141. Second drainage hole; 15. Third vertical wall; 16. First horizontal wall; 161. Third drainage hole; 17. Bottom wall; 18. Second horizontal wall; 19. Fourth vertical wall; 2. Window sash; 21. Indoor side window sash panel; 22. Outdoor side window sash panel; 23. Thermal insulation cotton; 3. Sealing mechanism; 31. Adhesive strip 32. First sealing strip; 33. Second sealing strip; 34. Third sealing strip; 4. Connecting mechanism; 41. Hinge; 42. Wind brace; 43. Lock seat; 5. Water-blocking strip; 51. Fourth drain hole; 6. First transmission mechanism; 61. Transmission rod; 62. First locking point; 63. First transmission box; 64. First handle; 7. Second transmission mechanism; 71. Second locking point; 72. Second transmission box; 73. Second handle; 8. Curtain wall keel; 9. Fastening screw; 91. Rubber cap. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0031] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0032] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0033] See Figures 1-9 As shown, this embodiment discloses an irregular inward-opening casement window system, which includes: a window frame 1, a window sash 2, a sealing mechanism 3, and a connecting mechanism 4; the window sash 2 is hinged to the window frame 1, and the connecting mechanism 4 is connected to the window frame 1 and the window sash 2; the window frame 1 is provided with a drainage cavity 11 and an installation cavity 12, the drainage cavity 11 is located on the side of the installation cavity 12 closer to the outside; the sealing mechanism 3 is located on the side of the drainage cavity 11 closer to the window sash 2, and the connecting mechanism 4 is located in the installation cavity 12.

[0034] The irregular-shaped inward-opening window system of this embodiment, by setting independent drainage chambers 11 and mounting chambers 12 on the window frame 1, and by installing sealing mechanism 3 and connecting mechanism 4 in drainage chambers 11 and mounting chambers 12 respectively, achieves isolation between the two, avoids the problem of sealing failure caused by interference between sealing mechanism 3 and connecting mechanism 4, improves the air tightness and water tightness of the irregular-shaped inward-opening window system, ensures indoor comfort and stability, and can adapt to various irregular shapes, improving the versatility of the system; at the same time, by installing connecting mechanism 4 in mounting chamber 12, the connecting mechanism 4 is hidden, reducing the indoor space occupied, and improving the overall visual simplicity and aesthetics of the system.

[0035] It is understood that the applicability of the irregular inward-opening window system in this embodiment is not limited. Provided that the structure and connection relationship of the drainage cavity 11, mounting cavity 12, connecting mechanism 4, and sealing mechanism 3 remain unchanged, it can be used not only for applications such as... Figure 1 The trapezoidal inward-opening casement window shown can also be adapted to various planar irregular-shaped inward-opening casement windows such as triangles, rectangles, and polygons. It is also suitable for irregular-shaped inward-opening casement windows with different spatial forms such as planes and arcs.

[0036] Specifically, the sealing mechanism 3 includes: a waterproof adhesive strip 31, a first sealing strip 32, a second sealing strip 33, and a third sealing strip 34; the waterproof adhesive strip 31, the first sealing strip 32, the second sealing strip 33, and the third sealing strip 34 are distributed sequentially from the outdoor side to the indoor side on the window frame 1; the waterproof adhesive strip 31, the first sealing strip 32, the second sealing strip 33, and the third sealing strip 34 are all continuously arranged along the entire perimeter of the window frame 1 without any breaks or gaps. By setting four uninterrupted rubber strips distributed sequentially from the outside to the inside, multiple barriers to outdoor airflow and rainwater are achieved, effectively preventing moisture from entering the installation cavity 12 or damaging the connection mechanism 4. This significantly improves the airtightness and watertightness of the system, avoids leakage problems caused by the failure of a single rubber strip, and at the same time, the uninterrupted design eliminates sealing breaks, further ensuring the integrity of the seal.

[0037] Preferably, the waterproofing strip 31 is made of a rubber material with good elasticity, which can guide rainwater to flow to the outside and reduce rainwater adhesion; the first sealing strip 32, the second sealing strip 33, and the third sealing strip 34 are full-frame sealing strips, the first sealing strip 32 and the third sealing strip 34 are closed sealing strips, and the second sealing strip 33 is an equal pressure sealing strip, which is adapted to the shape of the window sash 2 and the window frame 1, so that the gap between the window sash 2 and the window frame 1 is significantly reduced, blocking the entry of rainwater and airflow.

[0038] Specifically, the window frame 1 is provided with a first vertical wall 13, a second vertical wall 14, a third vertical wall 15, a first horizontal wall 16, and a bottom wall 17. The first vertical wall 13, the second vertical wall 14, and the third vertical wall 15 are vertically arranged and sequentially arranged from the side of the window frame 1 closest to the outside to the side closest to the inside, and are set on the bottom wall 17. The height of the third vertical wall 15 is less than the height of the first vertical wall 13 but greater than the height of the second vertical wall 14. The first horizontal wall 16, the second horizontal wall 18, and the bottom wall 17 are horizontally arranged. The first horizontal wall 16 is set on the top of the second vertical wall 14, and one end is connected to the third vertical wall 15, while the other end extends between the second vertical wall 14 and the first vertical wall 13. A drainage cavity 11 is formed between the first vertical wall 13, the second vertical wall 14, the first horizontal wall 16, and the bottom wall 17. More specifically, the first vertical wall 13, the second vertical wall 14, and the third vertical wall 15 are all vertically fixed to the bottom wall 17, and their bottoms are connected to the bottom wall 17 by welding or integral molding. The drainage chamber 11 provides a dedicated space for rainwater collection and discharge, preventing rainwater from entering the installation chamber 12 and affecting the connection mechanism 4. At the same time, the design of vertical walls of different heights guides rainwater to flow naturally into the drainage chamber 11, improving drainage efficiency and ensuring the waterproof performance of the system. The first vertical wall 13 is the tallest, which can effectively block outdoor rainwater from splashing in directly. The second vertical wall 14 is the shortest, which facilitates the flow of rainwater in the drainage chamber 11 to the drainage hole, meeting the drainage design requirements of smooth flow and anti-backflow.

[0039] Specifically, the sealant strip 31 is located at the top of the first vertical wall 13, the first sealing strip 32 is located on the side of the first vertical wall 13 facing the interior, the second sealing strip 33 is located at the top of the first horizontal wall 16, and the third sealing strip 34 is located on the side of the third vertical wall 15 facing the interior. When the window sash 2 presses against the window frame 1, the window sash 2 abuts against the third sealing strip 34, the second sealing strip 33, the first sealing strip 32, and the sealant strip 31. More specifically, the top of the first vertical wall 13, the side wall of the first vertical wall 13 facing the interior, the top of the first horizontal wall 16, and the side wall of the third vertical wall 15 facing the interior are all provided with slots, and the sealant strip 31, the first sealing strip 32, the second sealing strip 33, and the third sealing strip 34 respectively engage with the corresponding slots. When the window sash 2 rotates around the hinge point to close, the edge of the window sash 2 will successively abut against the third sealing strip 34, the second sealing strip 33, and the first sealing strip 32, and finally come into close contact with the waterproofing strip 31, forming a quadruple seal, which greatly reduces the risk of rainwater seepage.

[0040] Specifically, the bottom of the first vertical wall 13 is provided with several first drainage holes 131, and the second vertical wall 14 is provided with second drainage holes 141 directly opposite the first drainage holes 131; the first horizontal wall 16 is provided with several third drainage holes 161, the third drainage holes 161 being located between the second sealing strip 33 and the third vertical wall 15, and the second drainage holes 141 and the third drainage holes 161 being staggered; a first flow channel 111 is formed between the first sealing strip 32 and the second sealing strip 33, and the first flow channel 111 is connected to the first drainage holes 131; a second flow channel 112 is formed between the second sealing strip 33 and the third sealing strip 34, and the second flow channel 112, the third drainage holes 161, the second drainage holes 141 and the first flow channel 111 are connected in sequence. If outdoor rainwater seeps in from between the waterproofing strip 31 and the window sash 2, or if the window is not closed in time, causing rainwater to remain on the window frame 1, water flow will form inside the window frame 1. Water flowing between the first sealing strip 32 and the window sash 2 enters the first flow channel 111, then exits the drainage chamber 11 through the first drain hole 131, and flows out to the outside. Water flowing between the second sealing strip 33 and the window sash 2 enters the second flow channel 112, then sequentially enters the first flow channel 111 through the third drain hole 161 and the second drain hole 141, finally flowing through the end of the first flow channel 111 to the first drain hole 131, and finally being discharged to the outside through the first drain hole 131. By setting staggered drain holes and connected flow channels, a smooth anti-backflow drainage design is achieved, preventing rainwater from accumulating in the drainage chamber 11 or flowing back into the room. The cooperation of multiple flow channels and drain holes improves drainage efficiency, further ensures the watertight performance of the system, and solves the problem of poor drainage in conventional inward-opening casement windows.

[0041] Specifically, the irregular inward-opening window system of this embodiment further includes: a water-blocking strip 5; the water-blocking strip 5 is connected to the first vertical wall 13, and the water-blocking strip 5 is provided with a fourth drainage hole 51, which is offset from the first drainage hole 131, the second drainage hole 141, and the third drainage hole 161. Preferably, there are several of the first drainage hole 131, the second drainage hole 141, the third drainage hole 161, and the fourth drainage hole 51; the water-blocking strip 5 is fixed to the top of the outer side of the first vertical wall 13 by screws, and the water-blocking strip 5 is elongated and extends along the length of the first vertical wall 13; the fourth drainage hole 51 is set lower than the first drainage hole 131, and the fourth drainage hole 51 is evenly distributed on the water-blocking strip 5. By setting the water-blocking strip 5 on the outer side of the first vertical wall 13 and opening the offset fourth drainage hole 51, it is possible to further prevent outdoor ground rainwater from splashing into the first drainage hole 131, and at the same time guide the rainwater discharged from the first drainage hole 131 to avoid rainwater backflow, thereby enhancing the waterproof and drainage effect of the system and improving the overall water tightness performance.

[0042] Specifically, the window frame 1 also includes a second horizontal wall 18 and a fourth vertical wall 19. The second horizontal wall 18 is vertically arranged and located on the side of the third vertical wall 15 away from the second vertical wall 14. The fourth vertical wall 19 is vertically arranged and located on the side of the second horizontal wall 18 away from the third vertical wall 15. A mounting cavity 12 is formed between the third vertical wall 15, the second horizontal wall 18, and the fourth vertical wall 19. More specifically, the second horizontal wall 18 is vertically fixed to the bottom wall 17 and located inside the third vertical wall 15, with its bottom welded to or integrally formed with the bottom wall 17. The fourth vertical wall 19 is also vertically fixed to the bottom wall 17 and located inside the second horizontal wall 18. The inner side of the third vertical wall 15, the two sides of the second horizontal wall 18, and the outer side of the fourth vertical wall 19 together enclose the mounting cavity 12. By setting the second horizontal wall 18 and the fourth vertical wall 19 together with the third vertical wall 15 to form an installation cavity 12, an independent installation space is provided for the connecting mechanism 4, which realizes the isolation of the connecting mechanism 4 from the sealing mechanism 3 and the drainage cavity 11, avoids interference between the connecting mechanism 4 and the sealing mechanism 3, ensures the stable operation of the connecting mechanism 4, and also realizes the hidden design of the connecting mechanism 4, which improves the indoor aesthetics.

[0043] Specifically, the connecting mechanism 4 includes: a hinge 41, a wind brace 42, and several lock seats 43; the hinge 41, wind brace 42, and lock seats 43 are all installed in the mounting cavity 12; the window sash 2 is connected to the hinge 41. More specifically, the fixed end of the hinge 41 is fixed to the inner wall of the mounting cavity 12 by screws, and the movable end is fixedly connected to the edge of the window sash 2; one end of the wind brace 42 is hinged to the inner wall of the mounting cavity 12, and the other end is hinged to the inner side of the window sash 2; the lock seats 43 are fixed to the inner wall of the mounting cavity 12 by screws; when the window sash 2 is opened, the hinge 41 drives the window sash 2 to rotate, and the wind brace 42 extends or retracts accordingly, limiting the opening angle of the window sash 2 and preventing it from opening too wide; when closed, the window sash 2 rotates to fit against the window frame 1 through the hinge 41, and the lock seats 43 cooperate with the locking points on the window sash 2 to achieve locking. By installing the hinge 41, wind brace 42, and lock seat 43 inside the mounting cavity 12, the connecting mechanism 4 is concealed, preventing it from being exposed and occupying indoor space or affecting aesthetics. At the same time, the hinge 41 and wind brace 42 work together to ensure that the window sash 2 opens smoothly and closes stably, solving the problem of unsmooth opening of unconventional inward-opening windows and ensuring the reliability of the system.

[0044] Specifically, the irregular inward-opening window system also includes: a first transmission mechanism 6; the first transmission mechanism 6 is located on the side of the window sash 2 away from the hinge 41; the first transmission mechanism 6 includes: a transmission rod 61, a first locking point 62, a first transmission box 63, and a first handle 64; the transmission rod 61 is located on the side of the window sash 2 away from the hinge 41, at least part of the locking seat 43 is located in the mounting cavity 12 on the side of the window frame 1 away from the hinge 41, the first locking point 62 is connected to the transmission rod 61; the first transmission box 63 is connected to the transmission rod 61, and the first handle 64 is detachably connected to the first transmission box 63. More specifically, the transmission rod 61 is movable on the inner edge of the window sash 2 away from the hinge 41 and extends along the length of the window sash 2; the first locking point 62 is fixed to the middle of the transmission rod 61 by bolts, and its position corresponds to the lock seat 43 of the mounting cavity 12; the first transmission box 63 is connected to one end of the transmission rod 61, and the first handle 64 is connected to the first transmission box 63; when the first handle 64 rotates, it drives the transmission rod 61 to move along the length of the window sash 2 through the first transmission box 63, thereby driving the first locking point 62 to move, and cooperate with the lock seat 43 to lock or unlock the window sash 2. By setting up the first transmission mechanism 6, convenient locking and unlocking of the window sash 2 is achieved, making operation simple. At the same time, the first transmission mechanism 6 works in conjunction with the connecting mechanism 4 and the sealing mechanism 3 to ensure that the window sash 2 can fit tightly against the sealing mechanism 3 when closed, improving sealing performance. In addition, by installing the first transmission box 63 inside the window sash 2, the first handle 64 is detachably connected to the first transmission box 63, realizing the concealment and convenient use of the first handle 64. This avoids the first handle 64 being exposed when not in use, which would affect the interior aesthetics or occupy space, solving the problem of exposed accessories affecting the interior effect. At the same time, the detachable design also improves the safety of use and prevents unauthorized personnel from operating it.

[0045] Specifically, the irregular inward-opening window system also includes: a second transmission mechanism 7; the second transmission mechanism 7 is located at the bottom of the window sash 2; the second transmission mechanism 7 includes: a second locking point 71, a second transmission box 72, and a second handle 73; at least part of the lock seat 43 is located at the bottom of the window sash 2, and the second locking point 71 is connected to the second transmission box 72; the second handle 73 is detachably connected to the second transmission box 72. More specifically, the second locking point 71 is fixed to the second transmission box 72 by bolts, and its position corresponds to the lock seat 43 of the mounting cavity 12 at the bottom of the window frame 1; the second handle 73 is connected to the second transmission box 72; when the second handle 73 rotates, it drives the second locking point 71 to move through the second transmission box 72, so as to cooperate with the lock seat 43 to lock or unlock the window sash 2. By setting a second transmission mechanism 7, which can cooperate with the first transmission mechanism 6, the bottom or movable side of the window sash 2 can be locked and unlocked respectively. The two can operate independently and do not interfere with each other. There is no need to configure a non-90° corner device in the window sash 2 for power transmission, avoiding the problem of non-90° corner devices easily getting stuck and failing at non-standard angles of irregularly shaped windows. The opening and closing of the window sash 2 can be directly controlled by the two handles in coordination, ensuring smooth and stable window opening.

[0046] It is understood that the detachable connection between the first handle 64 and the first transmission box 63, and the detachable connection between the second handle 73 and the second transmission box 72, includes, but is not limited to, snap-fit ​​connections and threaded connections. Specifically, the first transmission box 63 is fixed to the inside of the window sash 2 by screws, and the output end of the first transmission box 63 is fixedly connected to the transmission rod 61; the connecting end of the first handle 64 is detachably connected to the input end of the first transmission box 63 by a snap-fit ​​or threaded structure; when it is necessary to open or close the window sash 2, the first handle 64 is rotated, which drives the gear inside the first transmission box 63 to rotate, thereby driving the transmission rod 61 to move, realizing the engagement or disengagement of the first locking point 62 and the lock seat 43; when no operation is required, the first handle 64 can be removed from the first transmission box 63. The second transmission box 72 is fixed to the inside of the window sash 2 by screws. The output end of the second transmission box 72 is connected to the second locking point 71. The second handle 73 is detachably connected to the input end of the second transmission box 72 by a snap or threaded structure. When it is necessary to open or close the window sash 2, rotate the second handle 73. The second handle 73 drives the gear inside the second transmission box 72 to rotate, thereby driving the second locking point 71 to move so that it can engage or disengage with the lock seat 43. When no operation is required, the second handle 73 can be removed from the second transmission box 72.

[0047] Specifically, the top of the second horizontal wall 18 is also provided with a slot, and the lock seat 43 and the wind brace 42 are respectively engaged with the slot and fixedly connected to the window frame 1. The slot at the top of the second horizontal wall 18 is opened along its length, and the slot cross-section is "U"-shaped; the bottom of the lock seat 43 is provided with a locking block that matches the slot. After the locking block is inserted into the slot, it is screwed through the lock seat 43 and fixed to the second horizontal wall 18; the end of the wind brace 42 near the window frame 1 is also provided with a locking structure that matches the slot. After locking, it is further fixed with screws, realizing the double fixation of the lock seat 43, the wind brace 42 and the window frame 1. By providing a slot at the top of the second horizontal wall 18, the lock seat 43 and the wind brace 42 are first engaged and then fixed, improving the installation positioning accuracy and avoiding installation misalignment from affecting use; at the same time, the double fixation enhances the connection stability, ensuring that the wind brace 42 supports the window sash 2 and the lock seat 43 locks the window sash 2 more reliably, ensuring smooth opening and closing of the irregular window.

[0048] Specifically, the irregular inward-opening window system of this embodiment also includes: a curtain wall keel 8; the window frame 1 is fixedly connected to the curtain wall keel 8 by fastening screws 9. More specifically, the nuts of the fastening screws 9 are located in the cavity formed by the second vertical wall 14, the first horizontal wall 16, the third vertical wall 15, and the bottom wall 17, and the nuts of the fastening screws 9 are sealed to the bottom wall 17 with rubber caps 91; the shank of the fastening screws 9 extends from the nuts toward the curtain wall keel 8 and is screwed to the bottom wall 17 and the curtain wall keel 8. The window frame 1 and the curtain wall keel 8 are fixed with fastening screws 9, ensuring a firm connection and guaranteeing the overall stability of the system; the nuts of the fastening screws 9 are hidden and sealed to prevent exposed corrosion or affect aesthetics, while also preventing rainwater from seeping into the curtain wall keel 8 from the nuts, further improving the water tightness of the system.

[0049] The installation process of the irregular inward-opening window system in this embodiment is as follows: First, the window frame 1 is assembled in the factory. Three staggered drainage holes 131, 141, and 161 are milled on the first vertical wall 13, the second vertical wall 14, and the first horizontal wall 16 of the window frame 1. Then, the waterproof adhesive strip 31 is snapped into the top groove of the first vertical wall 13, and the first sealing strip 32, the second sealing strip 33, and the third sealing strip 34 are snapped into the corresponding grooves on the inner side of the first vertical wall 13, the top of the first horizontal wall 16, and the inner side of the third vertical wall 15, respectively. Then, the hinge 41, the wind brace 42, and the lock seat 43 are installed into the mounting cavity 12. The wind brace 42 and the lock seat 43 are first snapped into the top groove of the second horizontal wall 18 and then fixed with screws. Finally, the water-blocking strip 5 is fixed to the outer side of the first vertical wall 13 with screws to complete the prefabrication of the window frame 1. Then, the prefabricated window frame 1 is transported to the installation site, aligned with the curtain wall keel 8, and the shank of the fastening screw 9 is threaded through the bottom wall 17 and screwed onto the curtain wall keel 8 within the cavity enclosed by the second vertical wall 14, the first horizontal wall 16, the third vertical wall 15, and the bottom wall 17 of the window frame 1. After the window frame 1 is fixed, a rubber cap 91 is fitted over the nut of the fastening screw 9, and the gap between the rubber cap 91 and the bottom wall 17 is sealed with sealant, thus completing the fixing of the window frame 1 to the curtain wall keel 8. Subsequently, the window sash 2 is assembled first, and the indoor side window sash panel 21 and the outdoor side window sash panel 22 are installed on the window sash 2, with insulation cotton 23 filled between them. Next, the first transmission box 63 and the second transmission box 72 are fixed to the side of the window sash 2 away from the hinge 41 and the bottom, respectively. The transmission rod 61 is connected to the first transmission box 63, and the first locking point 62 and the second locking point 71 are installed on the transmission rod 61 and the second transmission box 72, respectively. Then, the first handle 64 and the second handle 73 are detachably connected to the corresponding transmission boxes. Finally, the assembled window sash 2 is hinged to the window frame 1 through the hinge 41, so that the other end of the wind brace 42 is connected to the inside of the window sash 2, completing the overall installation. By prefabricating the window frame 1, processing the drainage holes, and installing the sealing mechanism 3 and the connecting mechanism 4 in the factory, the on-site construction procedures are reduced, and the sealing failure or drainage problems caused by on-site operation errors are avoided. At the same time, the assembly accuracy of each component of the window frame 1 is improved, ensuring the compatibility with the curtain wall panel and the window sash 2, and improving the overall waterproof sealing performance.

[0050] This embodiment provides an irregularly shaped inward-opening casement window system. By setting independent drainage cavities and installation cavities on the window frame, and by installing the sealing mechanism and connecting mechanism in the drainage cavity and installation cavity respectively, the two are isolated, avoiding the problem of sealing failure caused by interference between the sealing mechanism and the connecting mechanism. This improves the airtightness and watertightness of the irregularly shaped inward-opening casement window system, ensuring indoor comfort and stability, and can adapt to various irregular shapes, improving the versatility of the system. At the same time, by installing the connecting mechanism in the installation cavity, the connecting mechanism is hidden, reducing the indoor space occupied and improving the overall visual simplicity and aesthetics of the system.

[0051] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. An irregularly shaped inward-opening window system, characterized in that, include: A window frame, a window sash, a sealing mechanism, and a connecting mechanism; the window sash is hinged to the window frame, and the connecting mechanism is connected to the window frame and the window sash; the window frame is provided with a drainage cavity and an installation cavity, the drainage cavity being located on the side of the installation cavity closer to the outside; the sealing mechanism is located on the side of the drainage cavity closer to the window sash, and the connecting mechanism is located in the installation cavity.

2. The irregular inward-opening window system according to claim 1, characterized in that, The sealing mechanism includes: a waterproof adhesive strip, a first sealing strip, a second sealing strip, and a third sealing strip; the waterproof adhesive strip, the first sealing strip, the second sealing strip, and the third sealing strip are distributed sequentially from the outdoor side to the indoor side on the window frame; the waterproof adhesive strip, the first sealing strip, the second sealing strip, and the third sealing strip are all continuously arranged along the window frame.

3. The irregular inward-opening window system according to claim 2, characterized in that, The window frame is provided with a first vertical wall, a second vertical wall, a third vertical wall, a first horizontal wall, and a bottom wall; the first vertical wall, the second vertical wall, and the third vertical wall are vertically arranged and sequentially arranged from the side of the window frame closer to the outside to the side closer to the inside, and are set on the bottom wall; the height of the third vertical wall is less than the height of the first vertical wall but greater than the height of the second vertical wall; the first horizontal wall and the bottom wall are horizontally arranged; the first horizontal wall is set on top of the second vertical wall, and one end is connected to the third vertical wall, and the other end extends between the second vertical wall and the first vertical wall; a drainage cavity is formed between the first vertical wall, the second vertical wall, the first horizontal wall, and the bottom wall.

4. The irregular inward-opening window system according to claim 3, characterized in that, The sealant strip is disposed at the top of the first vertical wall, the first sealing strip is disposed on the side of the first vertical wall facing the interior, the second sealing strip is disposed at the top of the first horizontal wall, and the third sealing strip is disposed on the side of the third vertical wall facing the interior; when the window sash presses against the window frame, the window sash abuts against the third sealing strip, the second sealing strip, the first sealing strip, and the sealant strip.

5. The irregular inward-opening window system according to claim 4, characterized in that, The first vertical wall has a plurality of first drainage holes at its bottom, and the second vertical wall has a second drainage hole directly opposite the first drainage hole; the first horizontal wall has a plurality of third drainage holes, the third drainage holes being located between the second sealing strip and the third vertical wall, and the second drainage holes and the third drainage holes being offset from each other; a first flow channel is formed between the first sealing strip and the second sealing strip, and the first flow channel is connected to the first drainage hole; a second flow channel is formed between the second sealing strip and the third sealing strip, and the second flow channel, the third drainage hole, the second drainage hole and the first flow channel are connected in sequence.

6. The irregularly shaped inward-opening window system according to claim 5, characterized in that, Also includes: Water-retaining strip; The water-blocking strip is connected to the first vertical wall, and the water-blocking strip is provided with a fourth drainage hole, which is offset from the first drainage hole, the second drainage hole and the third drainage hole.

7. The irregular inward-opening window system according to claim 3, characterized in that, The window frame is further provided with a second horizontal wall and a fourth vertical wall. The second horizontal wall is vertically arranged and located on the side of the third vertical wall away from the second vertical wall. The fourth vertical wall is vertically arranged and located on the side of the second horizontal wall away from the third vertical wall. The mounting cavity is formed between the third vertical wall, the second horizontal wall and the fourth vertical wall.

8. The irregular inward-opening window system according to claim 7, characterized in that, The connecting mechanism includes: a hinge, a wind brace, and several lock seats; the hinge, the wind brace, and the lock seats are all installed in the mounting cavity; the window sash is connected to the hinge.

9. The irregular inward-opening window system according to claim 8, characterized in that, Also includes: A first transmission mechanism; the first transmission mechanism is located on the side of the window sash away from the hinge; the first transmission mechanism includes: a transmission rod, a first locking point, a first transmission box, and a first handle; The transmission rod is located on the side of the window sash away from the hinge, and at least part of the lock seat is located in the mounting cavity of the window frame away from the hinge. The first sleeve locking point is connected to the transmission rod; the first transmission box is connected to the transmission rod, and the first handle is detachably connected to the first transmission box.

10. The irregularly shaped inward-opening window system according to claim 9, characterized in that, Also includes: A second transmission mechanism; the second transmission mechanism is located at the bottom of the window sash; the second transmission mechanism includes: a second locking point, a second transmission box, and a second handle; At least part of the lock seat is located in the mounting cavity at the bottom of the window frame, and the second sleeve lock point is connected to the second transmission box; the second handle is detachably connected to the second transmission box.

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