Building window with prestressed sealing structure

Abstract

The present invention discloses a building window with a prestressed sealing structure, comprising a window frame and a window sash, the window frame being mounted on the window sash in a rotatable manner, the window sash being provided with a drainage hole on the outer side of the bottom end thereof, the window frame being provided with a first sealing strip, and the window sash being provided with a second sealing strip; when the window sash and the window frame abut against each other, the first sealing strip and the second sealing strip separate the window frame and the window sash into a water flow cavity located on the outer side and an airtight cavity located on the inner side; a pressurized locking mechanism being provided at the middle portion of the bottom end of the window sash and being used to position the window sash on the window frame while increasing the air pressure in the airtight cavity; when it rains outside and the window sash is closed, the air pressure in the water flow cavity and the airtight cavity are the same, the present invention increases the air pressure in the airtight cavity while closing the window, thereby ensuring that when the outdoor air pressure gradually increases, the air pressure in the water flow cavity may still be lower than the air pressure in the airtight cavity, rainwater will not flow into the room, and the sealing performance of the window sash is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building doors and windows, in particular to a building window with a prestressed sealing structure. Background Art

[0002] As is well known, in architecture, a window is an opening in a wall or roof that allows light or air to enter a room. Modern windows consist of three parts: a frame, glass, and movable components (hinges, handles, pulleys, etc.). The frame supports the main structure of the window, to which the transparent portion is attached. The movable components are primarily made of metal, and areas accessible to human hands may be covered with insulating materials such as plastic.

[0003] For example, the invention patent with publication number CN1126282A, publication date April 9, 2021, and titled "A System Window" relates to the field of metal door and window technology, specifically disclosing a system window comprising a window frame surrounded by a plurality of frame profiles, the window frame being hingedly provided with screen sashes and glass sashes that open indoors from the outdoors to the indoors, the window frame being a broken bridge door and window profile, the insulation strips of the window frame being filled with sound insulation material; the window frame being provided with an insulation cavity and a drainage cavity on the side close to the outdoors, the insulation cavity being provided with insulation material; the outside of the screen frame of the screen sash is flush with the outside of the window frame. The present invention achieves better sealing and insulation effects through the provision of sound insulation and heat insulation materials, making the window structure more suitable for use in high-end windows in high-rise buildings.

[0004] When the window in the prior art is closed, the first sealing strip and the second sealing strip separate the window frame and the window sash into a water flow cavity located on the outside and an airtight cavity located on the inside. When the window is closed, the air pressure in the airtight cavity is the same as the air pressure in the water flow cavity. However, as the outdoor air pressure gradually increases, the air pressure in the water flow cavity is higher than the air pressure in the airtight cavity, causing rainwater in the water flow cavity to leak into the airtight cavity, causing the window to leak. Summary of the Invention

[0005] The object of the present invention is to provide a building window with a prestressed sealing structure to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A building window with a prestressed sealing structure, comprising a window frame and a window sash, wherein the window sash is mounted on the window frame in a rotationally fitted manner, a drainage hole is provided on the outer side of the bottom end of the window sash, a first sealing strip is provided on the window frame, and a second sealing strip is provided on the window sash; when the window sash and the window frame abut against each other, the first sealing strip and the second sealing strip separate the window frame and the window sash into a water flow cavity located on the outer side and an airtight cavity located on the inner side; and further comprising:

[0008] The pressurized locking mechanism is arranged at the middle of the bottom end of the window sash and is used to position the window sash on the window frame while increasing the air pressure in the airtight cavity.

[0009] As mentioned above, the pressurized locking mechanism includes a positioning shaft and a first elliptical plate, a positioning hole is provided at one end of the inner side (the side facing the room) of the bottom end of the window frame, a hollow groove is provided in the middle of the bottom end of the window sash, and the side walls on both sides of the hollow groove are jointly installed with a positioning shaft in a rotationally fitting manner, the part of the positioning shaft located in the hollow groove is installed with a first elliptical plate, and the side wall of the first elliptical plate close to the inner side (the side facing the room) of the window sash is provided with a first elliptical groove, the bottom end of the hollow groove is installed with an insertion rod in a sliding fitting manner, and the insertion rod passes through the bottom end of the hollow groove and cooperates with the positioning hole, and a sliding round rod is provided on the insertion rod, which is installed in the first elliptical groove in a sliding fitting manner.

[0010] As mentioned above, the pressurized locking mechanism also includes a second elliptical plate, and the positioning shaft is provided with a second elliptical plate at one end in the airtight cavity, and a second elliptical groove is provided on the second elliptical plate. Two syringe tubes are symmetrically provided on the inner wall of one side of the window sash located in the airtight cavity about the second elliptical plate, and a sliding piston is respectively installed in the two syringe tubes in a sliding manner, and a push rod is respectively installed on the outer wall of the two sliding pistons on the side close to each other, and an auxiliary round rod is respectively installed on the two push rods, and the two auxiliary round rods are respectively installed on both sides of the second elliptical groove in a sliding manner, and an air inlet hole is respectively provided on the inner wall of the end close to each other of the two syringe tubes and the window sash.

[0011] As mentioned above, the pressurized locking mechanism also includes a square rotating rod, and a square groove is provided at one end of the positioning shaft located outside the airtight cavity. A square rotating rod is installed in the square groove by sliding fit, and the square rotating rod and the inner wall of the square groove are connected by a return spring. The end of the square rotating rod located outside the square groove is connected to a crank, and two clamping blocks are symmetrically arranged about the positioning axis on the side wall of the crank close to the window sash, and a clamping ring is provided on the outer wall of the window sash on the outside of the positioning shaft, and a plurality of clamping holes are evenly provided on the side wall of the clamping ring close to the crank side along its circumferential direction, and the two clamping blocks and the clamping holes are plugged into and fitted with each other.

[0012] As mentioned above, the air pressure one-way stabilizing mechanism is arranged in the second sealing strip and is used to balance the air pressure between the water flow cavity and the airtight cavity.

[0013] As mentioned above, the air pressure unidirectional stabilization mechanism includes an adjusting pipe fitting, and an adjusting pipe fitting is provided in the center of the second sealing strip. One end of the adjusting pipe fitting is connected to the water flow cavity through the first air pipe, and the other end of the adjusting pipe fitting is connected to the airtight cavity through the second air pipe.

[0014] As mentioned above, the top of the window sash is connected to the top of the window frame via a hinge.

[0015] In the above, the window frame is provided with a first heat-insulating strip, the first sealing strip is provided on the first heat-insulating strip, the window sash is provided with a second heat-insulating strip, and the second sealing strip is provided on the second heat-insulating strip.

[0016] As mentioned above, a water inlet hole is provided on the window frame at a position corresponding to the drainage hole.

[0017] As mentioned above, a water outlet is provided on the window frame at the bottom end of the water flow cavity, and a baffle is provided outside the water outlet.

[0018] The beneficial effects of the present invention are: when it rains outside, when the window sash is opened, rainwater on the glass is drained through the drainage holes on the window sash, and when the window sash is closed, the first sealing strip and the second sealing strip separate the window frame and the window sash into a water flow cavity and an airtight cavity. When the window sash is closed, the air pressure in the water flow cavity and the airtight cavity is the same. The present invention increases the air pressure in the airtight cavity while closing the window, thereby ensuring that when the outdoor air pressure gradually increases, the air pressure in the water flow cavity may still be lower than the air pressure in the airtight cavity, and outdoor rainwater will not flow into the room, thereby improving the sealing performance of the window sash. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] For the convenience of observation and description, the thickness of the window frame, window sash and glass in each embodiment of the present invention is exaggerated. Compared with the internal space of the window frame, the size of many components is relatively large. For the convenience of observation, the installation position of the window frame is omitted in each embodiment of the present invention.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 For the present invention Figure 1A top view of

[0023] Figure 3 For the present invention Figure 1 Front view of

[0024] Figure 4 For the present invention Figure 2 Schematic diagram of the cross-sectional structure at AA;

[0025] Figure 5 For the present invention Figure 4 The enlarged structural diagram at L;

[0026] Figure 6 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at BB;

[0027] Figure 7 For the present invention Figure 6 A schematic diagram of the structure at position M of FIG.

[0028] Figure 8 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at CC;

[0029] Figure 9 For the present invention Figure 8 A schematic diagram of the enlarged structure at N;

[0030] Figure 10 It is a schematic diagram of the cross-sectional three-dimensional structure of the window frame and window sash of the present invention.

[0031] Description of reference numerals:

[0032] 1. Window frame; 11. First sealing strip; 12. Positioning hole; 13. First insulation strip; 14. Water inlet hole; 15. Water outlet hole; 16. Baffle; 2. Window sash; 21. Drain hole; 22. Second sealing strip; 23. Hollow groove; 24. Second insulation strip; 25. Third sealing strip; 3. Water flow cavity; 4. Airtight cavity; 5. Pressurized locking mechanism; 51. Positioning shaft; 52. First elliptical plate; 53. First elliptical groove; 54. Insert rod; 55. Sliding rod; 56. Second elliptical plate; 57. Second elliptical groove; 58. Syringe fitting; 59. Sliding piston; 510, propulsion rod; 511, auxiliary round rod; 512, air inlet; 513, square rotating rod; 514, square groove; 515, return spring; 516, crank; 517, clamping block; 518, clamping ring; 519, clamping hole; 6, air pressure one-way stabilization mechanism; 61, adjusting pipe; 62, first air pipe; 63, second air pipe; 7, air intake conduction branch chain; 71, first baffle ring; 72, second baffle ring; 73, first sealing ring; 74, auxiliary spring; 75, hemispherical plate; 76, auxiliary rod; 77, second sealing ring; 78, conical groove. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] In each embodiment of the present invention, based on the convenience of description and understanding rather than limitation of rights, the directional words vertical, horizontal, front, back, length, width, outside, inside, etc. in this embodiment are understood according to the common sense of daily life. For example, the window is arranged vertically, its long side is arranged vertically, and the wide side is arranged horizontally. The side of the window facing the inside of the building is inside, and the side facing the outside of the building is outside. When opening the window, pushing from the indoor side to the outdoor side is forward, and vice versa is backward.

[0035] like Figures 1 to 10 As shown, an embodiment of the present invention provides a building window with a prestressed sealing structure, including a window frame 1 and a window sash 2, the window frame 1 is mounted with the window sash 2 in a rotationally fitted manner, a drainage hole 21 is provided on the outer side of the bottom end of the window sash 2, the window frame 1 is provided with a first sealing strip 11, and the window sash 2 is provided with a second sealing strip 22; when the window sash 2 and the window frame 1 abut against each other, the first sealing strip 11 and the second sealing strip 22 separate the window frame 1 and the window sash 2 into a water flow cavity 3 located on the outside and an airtight cavity 4 located on the inside; and also includes a pressurized locking mechanism 5, which is arranged in the middle of the bottom end of the window sash 2 and is used to position the window sash 2 on the window frame 1 while increasing the air pressure in the airtight cavity 4.

[0036] Specifically, the staff uses tools to install the window frame 1 on the wall according to the existing technical method. The window sash 2 is provided with a third sealing strip 25, and the third sealing strip 25 is used to seal the connection area between the window sash 2 and the glass. When the window sash 2 is docked with the window frame 1 (that is, the window sash 2 is closed), the window sash 2 and the window frame 1 at least partially overlap and dock, and the first sealing strip 11 and the second sealing strip 22 form a water flow cavity 3 outdoors between the window frame 1 and the window sash 2. The first sealing strip 11 and the second sealing strip 22 are connected to the window frame 1 and the window sash 2. The strip 22 forms an airtight cavity 4 outside the window frame 1 and the window sash 2, that is, the window frame 1 and the window sash 2 are separated into two cavities by the abutment of the first sealing strip 11 and the second sealing strip 22. When the window sash 2 is closed, the air pressure in the airtight cavity 4 and the water flow cavity 3 are the same (because the first sealing strip 11 and the second sealing strip 22 start to abut when the window sash 2 is closed, and before the window sash 2 is closed, the air pressure in the airtight cavity 4 and the water flow cavity 3 are the same as the external air pressure, so when the window sash 2 is opened, the airtight cavity 4 and the water flow cavity 3 are the same as the external air pressure. When the sash 2 is initially closed, the air pressure in the airtight cavity 4 and the water flow cavity 3 is the same). After the sash 2 is closed, the air pressure in the water flow cavity 3 is the same as the outdoor air pressure due to the connection (the water inlet hole 14 and the water outlet hole 15 are connected to the water flow cavity 3 and the outdoor). As the outdoor air pressure gradually increases, the air pressure in the water flow cavity 3 gradually increases. If the air pressure in the airtight cavity 4 remains unchanged, an air pressure difference is formed between the water flow cavity 3 and the airtight cavity 4, so that rainwater in the water flow cavity 3 may penetrate into the airtight cavity 4. The airtight cavity 4 is in the airtight cavity 4, so it is necessary to pressurize the airtight cavity 4 when the window sash 2 is closed. The core of the present invention is that when the window sash 2 is closed, the window sash 2 is locked on the window frame 1 and the airtight cavity 4 is pressurized to ensure that the air pressure in the airtight cavity 4 is higher than the air pressure in the water flow cavity 3, so that rainwater in the water flow cavity 3 will not penetrate into the airtight cavity 4 from the abutment position of the first sealing strip 11 and the second sealing strip 22, thereby improving the sealing effect between the window frame 1 and the window sash 2. In this embodiment, in order to increase the air pressure in the airtight cavity 4, the pressurized locking mechanism 5 applies pressure to the airtight cavity 4 and its auxiliary components, especially the sealing gasket, thereby improving the sealing effect.

[0037] Furthermore, the pressurized locking mechanism 5 includes a positioning shaft 51 and a first elliptical plate 52. The bottom end of the window frame 1 is located on the inner side (the side facing the room) thereof and is provided with a positioning hole 12. The middle part of the bottom end of the window sash 2 is provided with a hollow groove 23. The two side walls of the hollow groove 23 are jointly mounted with the positioning shaft 51 in a rotationally matched manner. The portion of the positioning shaft 51 located in the hollow groove 23 is mounted with the first elliptical plate 52. The first elliptical plate 52 is provided with a first elliptical groove 53 on the side wall close to the inner side (the side facing the room) of the window sash 2. The bottom end of the hollow groove 23 is mounted with a plug rod 5 in a sliding manner. 4, and the insertion rod 54 passes through the bottom end of the hollow groove 23 and cooperates with the positioning hole 12. A sliding round rod 55 is provided on the insertion rod 54. The sliding round rod 55 is installed in the first elliptical groove 53 in a sliding cooperation manner. Specifically, (1) when the inner fan needs to be closed, it needs to be stably positioned on the outer frame to ensure the sealing between the inner fan and the outer frame. When the inner fan is closed, the positioning shaft 51 is driven to rotate 90 degrees clockwise. The positioning shaft 51 drives the first elliptical plate 52 to rotate 90 degrees. During the process of the first elliptical plate 52 rotating 90 degrees, the sliding round rod 55 moves along the first elliptical groove 53. The track slides (that is, the sliding rod 55 slides from the short axis focus position of the first elliptical groove 53 to the long axis focus position of the first elliptical groove 53), and the first elliptical plate 52 and the first elliptical groove 53 drive the insertion rod 54 to slide toward the bottom end of the inner fan through the sliding rod 55, so that the insertion rod 54 is inserted into the positioning hole 12, and the inner fan is stably fixed on the outer frame; (2) When the inner fan needs to be opened and the positioning of the inner fan on the outer frame needs to be released, there are two options at this time. You can continue to rotate the positioning shaft 51 clockwise to rotate it 90 degrees (continue to rotate the positioning shaft 51 clockwise 90 degrees when it was previously closed). degrees) or rotate the positioning shaft 51 counterclockwise to rotate it 90 degrees, the positioning shaft 51 drives the first elliptical plate 52 to rotate 90 degrees. During the process of the first elliptical plate 52 rotating 90 degrees, the sliding rod 55 slides along the trajectory of the first elliptical groove 53 (that is, the sliding rod 55 slides from the long axis focus position of the first elliptical groove 53 to the short axis focus position of the first elliptical groove 53). The first elliptical plate 52 and the first elliptical groove 53 drive the insertion rod 54 to slide toward the top side of the inner fan through the sliding rod 55, so that the insertion rod 54 slides out of the positioning hole 12, so that the outer frame no longer positions the inner fan, and the inner fan is opened at this time.

[0038] Furthermore, the pressurized locking mechanism 5 also includes a second elliptical plate 56, and the second elliptical plate 56 is installed at one end of the positioning shaft 51 located in the airtight cavity 4. The second elliptical plate 56 is provided with a second elliptical groove 57. Two syringe tubes 58 are symmetrically provided on the inner wall of one side of the window sash 2 located in the airtight cavity 4 with respect to the second elliptical plate 56. A sliding piston 59 is respectively installed in the two syringe tubes 58 in a sliding fit manner. A propulsion rod 510 is respectively installed on the outer wall of the two sliding pistons 59 on the side close to each other. An auxiliary round rod 511 is respectively installed on the two propulsion rods 510. The two auxiliary round rods 511 are respectively installed on the two auxiliary round rods 511. The rod 511 is respectively installed on both sides of the second elliptical groove 57 in a sliding fit manner. An air inlet hole 512 is provided on the inner wall of the two syringe tubes 58 close to one end and the window sash 2. Specifically, (1) when the positioning shaft 51 rotates 90 degrees clockwise, the positioning shaft 51 drives the second elliptical plate 56 to rotate 90 degrees. During the process of the second elliptical plate 56 rotating 90 degrees, the auxiliary round rod 511 slides along the trajectory of the second elliptical groove 57 (that is, the auxiliary round rod 511 slides from the short axis focus position of the first elliptical groove 53 to the long axis focus position of the first elliptical groove 53), so that the auxiliary round rod 511 drives the propulsion rod 510 to The push rod 510 slides away from one end of the syringe tube 58 (that is, the push rod 510 slides toward the end of the syringe tube 58), and the push rod 510 drives the sliding piston 59 to slide toward the end of the syringe tube 58 (that is, the sliding piston 59 slides toward the end of the syringe tube 58), so that the sliding piston 59 transports the gas inside the syringe tube 58 to the airtight cavity 4. Due to the existence of the air inlet hole 512, the air pressure inside the syringe tube 58 is always the same as the air pressure in the room. After the sliding piston 59 slides toward the end of the syringe tube 58 (that is, the sliding piston 59 slides toward the end of the syringe tube 58), the syringe tube 58 will not be in a vacuum state, and the sliding piston 59 will not rebound. The air pressure in the airtight cavity 4 is increased (because when the inner fan is closed, the air pressure in the airtight cavity 4 is the same as the outdoor air pressure, and when the volume of the airtight cavity 4 does not change, the gas inside the syringe tube 58 is transported into the airtight cavity 4, increasing the gas storage in the airtight cavity 4, so that the air pressure in the airtight cavity 4 is increased relative to the previous air pressure). That is to say, when the positioning shaft 51 is rotated 90 degrees clockwise, not only can the inner fan be stably positioned on the outer frame, but the air pressure in the airtight cavity 4 can also be increased, so that the air pressure in the airtight cavity 4 is higher than the air pressure in the water flow cavity 3, so that rainwater will not leak into the airtight cavity 4;(2) When the positioning shaft 51 is continued to be rotated clockwise to rotate it 90 degrees (the positioning shaft 51 is continued to be rotated clockwise 90 degrees when it was previously closed) or when the positioning shaft 51 is rotated counterclockwise to rotate it 90 degrees, the positioning shaft 51 drives the first elliptical plate 52 to rotate 90 degrees, and the positioning shaft 51 drives the second elliptical plate 56 to rotate 90 degrees. During the process of the second elliptical plate 56 rotating 90 degrees, the auxiliary round rod 511 slides along the trajectory of the second elliptical groove 57 (that is, the auxiliary round rod 511 slides from the long axis focus position of the first elliptical groove 53 to the short axis focus position of the first elliptical groove 53), so that the auxiliary round rod 511 drives the propulsion rod 510 to slide toward one end closer to each other (that is, the propulsion rod 510 toward the outer end of the syringe tube 58), and the propulsion rod 510 drives the sliding piston 59 to slide toward one end closer to each other (that is, the sliding piston 59 toward the outer end of the syringe tube 58). At this time, the sliding piston 59 sucks the gas in the airtight cavity 4 into the syringe tube 58 Since the inner fan is opened for a short time, the air pressure one-way stabilizing mechanism 6 has not yet started to balance the air pressure in the airtight cavity 4 and the water flow cavity 3. The inner fan has been opened, and the first sealing strip 11 and the second sealing strip 22 are separated from each other, so that the airtight cavity 4 no longer exists. When the inner fan is opened, the air pressure difference between the airtight cavity 4 and the water flow cavity 3 is in a balanced state under the action of the air pressure one-way stabilizing mechanism 6; when the inner fan is closed, when it is necessary to adjust the air pressure in the airtight cavity 4, it is also The positioning shaft 51 can be driven (the rotation angle of the positioning shaft 51 is within 90 degrees, that is, the positioning shaft 51 will not rotate to the separation or positioning position of the inner fan and outer frame), so that the gas in the syringe tube 58 is transported into the airtight cavity 4 to increase the air pressure in the airtight cavity 4, or the gas in the airtight cavity 4 is sucked into the syringe tube 58 to reduce the air pressure in the airtight cavity 4. In this way, the air pressure in the airtight cavity 4 can be adjusted to adapt to the air pressure changes in the water flow cavity 3.

[0039] Furthermore, the pressurized locking mechanism 5 also includes a square rotating rod 513, and a square groove 514 is provided at one end of the positioning shaft 51 located outside the airtight cavity 4. The square rotating rod 513 is installed in the square groove 514 by sliding fit. The square rotating rod 513 and the inner wall of the square groove 514 are connected by a return spring 515. The end of the square rotating rod 513 located outside the square groove 514 is connected to a crank 516. Two blocks 517 are symmetrically provided on the side wall of the crank 516 on the side close to the window sash 2 about the positioning shaft 51. A snap ring 518 is provided on the outer wall of the window sash 2 on the outside of the positioning shaft 51. The snap ring 518 is provided on the side wall close to the crank 516. A plurality of clamping holes 519 are uniformly provided along its circumferential direction, and the two clamping blocks 517 are plugged into and matched with the clamping holes 519. Specifically, (1) when the positioning shaft 51 needs to be driven to rotate 90 degrees clockwise or 90 degrees counterclockwise, the staff needs to hold the crank 516 and pull the clamping block 517 out of the clamping hole 519 through the crank 516 (because the clamping block 517 is inserted into the clamping hole 519 through the square rotating rod 513 and the crank 516 under the tension of the return spring 515, and the crank 516 is positioned, so when the positioning shaft 51 needs to be rotated, the clamping block 517 needs to be pulled out of the clamping hole 519 and contact the clamping hole 519). 19 pairs of positioning blocks 517 and crank handle 516), at this time the return spring 515 is in a stretched state, and the staff rotates the crank handle 516 to rotate it 90 degrees (the initial positions of the positioning shaft 51 and the crank handle 516 are recorded as 0 degrees or 360 degrees, the initial position of the crank handle 516 is that the end of the crank handle 516 is at the bottom, the direction of the long axis of the first elliptical plate 52 is parallel to the bottom end of the outer frame, the direction of the long axis of the second elliptical plate 56 is perpendicular to the bottom end of the outer frame, and the insertion rod 54 is located outside the positioning hole 12), the crank handle 516 drives the square rotating rod 513 to rotate 90 degrees, and the square rotating rod 513 drives the positioning shaft 51 to rotate 90 degrees, so that the positioning shaft 51 can The locating shaft 511 is capable of rotating 90 degrees. When the positioning shaft 51 needs to be driven to rotate a certain angle (that is, the angle at which the clamping block 517 and the clamping hole 519 can be plugged in, the rotation angle of the positioning shaft 51 is within 90 degrees, that is, the positioning shaft 51 will not rotate to the separation or positioning position of the inner fan and the outer frame), the crank 516 can drive the positioning shaft 51 to rotate to the required angle through the square rotating rod 513 (because the clamping holes 519 evenly arranged on the clamping ring 518 correspond one-to-one with the clamping blocks 517, so that when the crank 516 is rotated to the required angle, the clamping holes 519 can position the clamping blocks 517), which is adapted to the above-mentioned required rotation angle of the positioning shaft 51;(2) When the positioning shaft 51 is rotated to the required angle, the staff releases the tension on the crank handle 516. Under the pulling action of the return spring 515, the square rotating rod 513 slides in the square groove 514 toward the end of the return spring 515. The square rotating rod 513 drives the clamping block 517 to slide toward the end of the return spring 515 through the crank handle 516, so that the clamping block 517 on the crank handle 516 is inserted into the clamping hole 519. The crank handle 516 is positioned by the plug-in cooperation between the clamping hole 519 and the clamping block 517, so that the crank handle 516 will not rotate without external power.

[0040] Furthermore, the air pressure one-way stabilizing mechanism 6 is arranged in the second sealing strip 22 and is used to balance the air pressure between the water flow cavity 3 and the airtight cavity 4. Specifically, when the air pressure in the water flow cavity 3 gradually balances the air pressure in the airtight cavity 4, the air pressure in the water flow cavity 3 and the airtight cavity 4 can be balanced by the air pressure one-way stabilizing mechanism 6, and the air pressure in the airtight cavity 4 will not be lower than the air pressure in the water flow cavity 3, and rainwater will not penetrate from the water flow cavity 3 into the airtight cavity 4.

[0041] Furthermore, the air pressure one-way stabilization mechanism 6 includes an adjusting pipe 61, and an adjusting pipe 61 is provided at the center of the second sealing strip 22. One end of the adjusting pipe 61 is connected to the water flow cavity 3 through the first air pipe 62, and the other end of the adjusting pipe 61 is connected to the airtight cavity 4 through the second air pipe 63. Specifically, the water flow cavity 3 and the airtight cavity 4 are connected through the first air pipe 62, the adjusting pipe 61 and the second air pipe 63, so that the air pressure in the water flow cavity 3 and the airtight cavity 4 can maintain a relative balance, so that rainwater in the water flow cavity 3 will not penetrate into the airtight cavity 4.

[0042] Furthermore, the top of the window sash 2 is connected to the top of the window frame 1 via a hinge. Specifically, the window sash 2 can be opened and closed with the hinge (not shown in the figure) as the center.

[0043] Furthermore, a first thermal insulation strip 13 is provided on the window frame 1, the first sealing strip 11 is provided on the first thermal insulation strip 13, a second thermal insulation strip 24 is provided on the window sash 2, and the second sealing strip 22 is provided on the second thermal insulation strip 24. Specifically, the first thermal insulation strip 13 and the second thermal insulation strip 24 are both made of rubber, and the thermal expansion and contraction coefficients of the two are the same (the thermal expansion and contraction coefficient refers to the amount by which the length of a one-meter-long solid substance changes when the temperature rises by one degree Celsius). The first thermal insulation strip 13 and the second thermal insulation strip 24 can further seal and insulate the window sash 2 and the window frame 1. When the outdoor temperature is high and the temperature of the glass is relatively increased, it will not affect the first sealing strip 11 and the second sealing strip 22, thereby improving the service life of the first sealing strip 11 and the second sealing strip 22. This is a prior art and will not be elaborated on.

[0044] Furthermore, a water inlet hole 14 is provided on the window frame 1 at a position corresponding to the drainage hole 21. Specifically, due to the presence of the water inlet hole 14, the water flow cavity 3 is connected to the outdoors, so that the air pressure in the water flow cavity 3 is always consistent with the outdoor air pressure (or relatively consistent). When the outdoor air pressure changes, there is an air pressure difference between the water flow cavity 3 and the airtight cavity 4. Due to the presence of the air pressure one-way stabilization mechanism 6, the air pressure between the water flow cavity 3 and the airtight cavity 4 is in a relative equilibrium state, so that the air pressure in the water flow cavity 3 and the airtight cavity 4 tends to be stable. When the window sash 2 is in a closed state, a small amount of rainwater in the drainage hole 21 may flow into the water flow cavity 3 through the water inlet hole 14, and the rainwater is discharged from the window frame 1 into the water flow cavity 3 through the water inlet hole 14, which has a certain diversion effect on the rainwater.

[0045] Furthermore, a water outlet 15 is provided on the window frame 1 at the bottom end of the water flow cavity 3, and a baffle 16 is provided on the outside of the water outlet hole 15. Specifically, due to the existence of the water outlet hole 15, the water flow cavity 3 is connected to the outdoors, so that the air pressure in the water flow cavity 3 is always consistent with the outdoor air pressure (or relatively consistent). When the outdoor air pressure changes, there is an air pressure difference between the water flow cavity 3 and the airtight cavity 4. Due to the existence of the air pressure one-way stabilizing mechanism 6, the air pressure between the water flow cavity 3 and the airtight cavity 4 is in a relatively balanced state. When rainwater flows into the water flow cavity 3, the rainwater is discharged from the water flow cavity 3 in time through the water outlet hole 15. The baffle 16 can enable the water outlet hole 15 to play a certain diversion role in the discharge of rainwater, so that rainwater will not leak into the airtight cavity 4. Under the joint action of the water outlet hole 15 and the air pressure one-way stabilizing mechanism 6, the sealing between the window sash 2 and the window frame 1 is greatly improved.

[0046] Furthermore, a third sealing strip 25 is provided on the window sash 2, and the third sealing strip 25 is used to fix the glass on the window sash 2. Specifically, the third sealing strip 25 is made of rubber material, which is used to fix the glass on the window sash 2 to improve the stability and sealing of the glass installation.

[0047] Furthermore, the open end of the window sash 2 and the window frame 1 are connected by a sliding support, and the sliding support is used to support the opening of the window sash 2. Specifically, when the window sash 2 needs to be opened, the window sash 2 pulls the sliding support (not shown in the figure) to extend and retract. When the window sash 2 is opened to a suitable angle, the sliding support slides and stretches to a suitable position to support the window sash 2, so that the window sash 2 can be opened stably. When the window sash 2 needs to be closed, the window sash 2 continues to be pushed outward to a certain angle, and then pulled back, so that the sliding support slides to the longest distance and then retracts, so that the window sash 2 can be closed. The sliding support is common knowledge in this field and will not be repeated.

[0048] In another embodiment provided by the present invention, an intake conduction branch chain 7 is provided on each of the first air pipe 62 and the second air pipe 63, and the intake conduction branch chain 7 is used for gas conduction in the first air pipe 62 and the second air pipe 63. The intake conduction branch chain 7 includes a first baffle ring 71 and a second baffle ring 72. The intake end of the first air pipe 62 and the connecting end of the second air pipe 63 and the regulating pipe 61 are each installed with a first baffle ring 71, and the connecting end of the first air pipe 62 and the regulating pipe 61 and the intake end of the second air pipe 63 are each installed with a second baffle ring 72. A first sealing ring 73 is respectively installed on the side wall of the two second baffle rings 72 close to the first baffle ring 71, and an auxiliary spring 74 is abutted on the two first baffle rings 71. The auxiliary spring 74 is respectively abutted with a hemispherical plate 75, and the hemispherical plate 75 is installed in the first air pipe 62 (or the second air pipe 63) in a sliding fit manner. An auxiliary rod 76 is provided on each of the two hemispherical plates 75, and the two auxiliary rods 76 are installed on the second retaining ring 72 in a sliding fit manner. A second sealing ring 77 is provided on the outer wall of the auxiliary rod 76 on the hemispherical plate 75, and the first sealing ring 73 is tightly abutted against the second sealing ring 77. Specifically, since the first air pipe 62, the regulating pipe 61 and the second air pipe 63 connect the water flow cavity 3 and the airtight cavity 4, when the window sash 2 is closed: (1) when the air pressure in the water flow cavity 3 is higher than the air pressure in the airtight cavity 4, due to the hemispherical plate 75 and the second sealing ring The ring 77 is pressed against the first sealing ring 73 on the second retaining ring 72, so that the first air pipe 62 and the second air pipe 63 are in a sealed state. Even if the air pressure in the water flow cavity 3 is higher than the air pressure in the airtight cavity 4, due to the sealing effect of the first sealing ring 73, the second sealing ring 77, the second retaining ring 72 and the hemispherical plate 75 on the first air pipe 62 and the second air pipe 63, rainwater in the water flow cavity 3 will not leak into the airtight cavity 4, thereby improving the sealing between the window sash 2 and the window frame 1; (2) when the air pressure in the airtight cavity 4 is higher than the air pressure in the water flow cavity 3, due to the existence of air pressure, the auxiliary rod 76 and the hemispherical plate 75 slide to the side close to the first retaining ring 71, and under the expansion and contraction action of the auxiliary spring 74, the hemispherical plate 75 slides to the side close to the first retaining ring 71. After sliding to a certain position in the air pipe 62 (or the second air pipe 63), it stops sliding. At this time, the auxiliary spring 74 is in a compressed state, so that the air pressure in the airtight cavity 4 is balanced with the air pressure in the water flow cavity 3 through the regulating pipe 61, the first air pipe 62 and the second air pipe 63, so that the air pressure in the water flow cavity 3 and the airtight cavity 4 are in a relatively balanced state. Under the expansion and contraction action of the auxiliary spring 74, it can also have a certain buffering effect on the air pressure in the airtight cavity 4, so that the air pressure in the airtight cavity 4 and the water flow cavity 3 remain in a relatively balanced state, thereby improving the sealing between the window sash 2 and the window frame 1; when the window sash 2 is opened, under the rebound action of the auxiliary spring 74, the auxiliary rod 76 and the hemispherical plate 75 slide to the initial position, which is convenient for subsequent use.

[0049] Preferably, a conical groove 78 is provided on the auxiliary rod 76 in the first air pipe 62 at one end close to the adjusting pipe 61 and the auxiliary rod 76 in the second air pipe 63 at one end close to the airtight cavity. Specifically, when the air pressure in the airtight cavity 4 is higher than the air pressure in the water flow cavity 3, the conical groove 78 provided on the auxiliary rod 76 increases its force-bearing area, so that the auxiliary rod 76 can better drive the hemispherical plate 75 to squeeze the auxiliary spring 74, thereby improving the working stability of the auxiliary rod 76.

[0050] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A building window with a prestressed sealing structure, comprising a window frame and a window sash, wherein the window sash is rotatably mounted on the window frame, a drainage hole is provided on the outer side of the bottom end of the window sash, a first sealing strip is provided on the window frame, and a second sealing strip is provided on the window sash; when the window sash and the window frame abut each other, the first sealing strip and the second sealing strip separate the window frame and the window sash into a water flow cavity on the outside and an airtight cavity on the inside; characterized in that: Also includes: A pressurized locking mechanism is provided at the middle of the bottom end of the window sash and is used to position the window sash on the window frame while increasing the air pressure in the airtight cavity; The pressurized locking mechanism includes a positioning shaft and a first elliptical plate, the bottom end of the window frame is provided with a positioning hole at one end inside the window frame, the middle portion of the bottom end of the window sash is provided with a hollow groove, and the side walls on both sides of the hollow groove are jointly mounted with the positioning shaft in a rotationally matched manner, the portion of the positioning shaft located in the hollow groove is mounted with the first elliptical plate, the side wall of the first elliptical plate close to the inner side of the window sash is provided with a first elliptical groove, the bottom end of the hollow groove is mounted with an insertion rod in a sliding manner, and the insertion rod passes through the bottom end of the hollow groove and cooperates with the positioning hole, a sliding round rod is provided on the insertion rod, and the sliding round rod is mounted in the first elliptical groove in a sliding manner; The pressurized locking mechanism also includes a second elliptical plate, a second elliptical plate is installed at one end of the positioning shaft located in the airtight cavity, a second elliptical groove is provided on the second elliptical plate, and two syringe tubes are symmetrically provided with respect to the second elliptical plate on the inner wall of one side of the window sash located in the airtight cavity, a sliding piston is respectively installed in the two syringe tubes in a sliding fit manner, a push rod is respectively installed on the outer wall of the two sliding pistons on the side close to each other, an auxiliary round rod is respectively installed on the two push rods, and the two auxiliary round rods are respectively installed on both sides of the second elliptical groove in a sliding fit manner, and an air inlet hole is respectively provided on the inner wall of the end close to each other of the two syringe tubes and the window sash; The pressurized locking mechanism also includes a square rotating rod, and a square groove is provided at one end of the positioning shaft located outside the airtight cavity. A square rotating rod is installed in the square groove by sliding fit, and the square rotating rod and the inner wall of the square groove are connected by a return spring. The end of the square rotating rod located outside the square groove is connected to a crank, and two clamping blocks are symmetrically provided with respect to the positioning axis on the side wall of the crank close to the window sash, and a clamping ring is provided on the outer wall of the window sash on the outside of the positioning shaft, and a plurality of clamping holes are evenly provided on the side wall of the clamping ring close to the crank handle along its circumferential direction, and the two clamping blocks and the clamping holes are plugged into and fit with each other.

2. The building window with a prestressed sealing structure according to claim 1, characterized in that: It also includes an air pressure one-way stabilizing mechanism, which is arranged in the second sealing strip and is used to balance the air pressure between the water flow cavity and the airtight cavity.

3. The building window with a prestressed sealing structure according to claim 2, characterized in that: The air pressure unidirectional stabilization mechanism includes an adjusting pipe fitting, and an adjusting pipe fitting is provided in the center of the second sealing strip. One end of the adjusting pipe fitting is connected to the water flow cavity through the first air pipe, and the other end of the adjusting pipe fitting is connected to the airtight cavity through the second air pipe.

4. The building window with a prestressed sealing structure according to claim 1, characterized in that: The top of the window sash is connected to the top of the window frame via a hinge.

5. The building window with a prestressed sealing structure according to claim 1, characterized in that: The window frame is provided with a first heat-insulating strip, the first sealing strip is provided on the first heat-insulating strip, the window sash is provided with a second heat-insulating strip, and the second sealing strip is provided on the second heat-insulating strip.

6. The building window with a prestressed sealing structure according to claim 1, characterized in that: A water inlet hole is provided on the window frame at a position corresponding to the drainage hole.

7. The building window with a prestressed sealing structure according to claim 1, characterized in that: The window frame is provided with a water outlet at the bottom end of the water flow cavity, and a baffle is provided outside the water outlet.

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