Openable emergency escape window suitable for pressurized building

Abstract

The utility model belongs to the technical field of safety evacuation equipment, and particularly relates to an openable emergency escape window suitable for a pressurized building. Comprising a window frame 1 welded and fixed to a pressurizing building structure, a window sash 2 is arranged in the middle of the window frame 1, the outer end face of the window sash 2 is hinged to the outer end face of the window frame 1 through a hinge 4, an opening and closing mechanism 3 is arranged between the inner end face of the window sash 2 and the inner end face of the window frame 1, and laminated glass is arranged in the middle of the window sash 2. And a sealing ring 17 and a continuously arranged sealing rubber strip 18 are arranged between the inner end face of the window sash 2 and the outer end face of the window frame 1.

Description

Technical Field

[0001] The utility model belongs to the technical field of safe evacuation equipment, and in particular relates to an openable emergency escape window suitable for pressurized buildings. Background Art

[0002] Existing escape windows are mainly used in public transportation such as high-speed railways and buses. They are used to allow people to quickly open or break the escape windows to escape when an accident occurs and people cannot evacuate through doors.

[0003] Openable escape windows are gaining increasing public attention due to their large escape area, safety, ease of use, and manageable risks. Design of openable escape windows focuses primarily on different drive methods and window opening configurations. These include manual, electric, and pneumatic drive options. Opening configurations include rotary side opening, horizontal sliding, and fully detachable sashes.

[0004] However, existing escape windows are only suitable for environments with no pressure difference between inside and outside, and are difficult to use in pressurized buildings. Pressurized buildings are often used in plateau areas. They effectively alleviate altitude sickness by increasing the pressure inside the building to the same level as in low-altitude areas. Theoretically, the indoor and outdoor pressure difference in pressurized buildings can reach 50kPa. When used in pressurized buildings, existing escape windows have the following disadvantages:

[0005] 1) There is a high pressure difference between the indoor and outdoor areas of pressurized buildings. The existing drive mechanism for opening escape windows often adopts a sliding locking form, which has a large sliding friction resistance when opening, making manual opening difficult;

[0006] 2) The resistance to opening escape windows in pressurized buildings is high. Existing electric and pneumatic opening methods often require components such as motors and cylinders with multi-stage transmission mechanisms, which take up a lot of space, have complex connection structures, and have low overall reliability.

[0007] 3) Pressurized buildings have high requirements for the airtightness of doors and windows, and the escape windows using existing technology cannot meet the airtightness requirements of pressurized buildings. Utility Model Content

[0008] The technical problem to be solved by the utility model is to provide an openable emergency escape window suitable for pressurized buildings, which has a compact overall structure, good airtightness, simple operation, and is easy to reuse.

[0009] The technical solutions adopted by the present invention to solve the above technical problems are:

[0010] An openable emergency escape window suitable for a pressurized building comprises a window frame 1 welded and fixed to the pressurized building structure, a window sash 2 being provided in the middle of the window frame 1, the outer end face of the window sash 2 being hinged to the outer end face of the window frame 1 via a hinge 4, an opening and closing mechanism 3 being provided between the inner end face of the window sash 2 and the inner end face of the window frame 1, laminated glass being provided in the middle of the window sash 2, and a sealing ring 17 and continuously arranged sealing strips 18 being provided between the inner end face of the window sash 2 and the outer end face of the window frame 1.

[0011] Furthermore, the opening and closing mechanism 3 includes a card plate 5 fixedly connected to the inner end surface of the window sash 2 and a base 7 fixedly connected to the inner end surface of the window frame 1. A handle 11 is fixedly installed on the outer wall of the card plate 5 on the side away from the base 7. A pin shaft 13 is provided on the outer wall of the base 7 on the side away from the card plate 5, and a lever 12 is rotatably connected to the pin shaft 13.

[0012] Furthermore, a longitudinal slot 16 is provided on one side of the base 7 near the lever 12 parallel to the opening direction of the window sash, and a slider 9 is slidably provided in the longitudinal slot 16;

[0013] A transverse groove 15 is provided on one side of the base 7 near the handle 11 in a direction perpendicular to the longitudinal groove 16, and a steel ball 6 is slidably arranged in the transverse groove 15;

[0014] A trapezoidal slot 20 that matches the size of the steel ball 6 is formed on the side of the clamping plate 5 at a position corresponding to the transverse sliding slot 15 .

[0015] Furthermore, the lever 12 drives the slider 9 to move longitudinally along the longitudinal groove 16 through the gear rack mechanism, and the inclined platform structure on the side of the slider 9 pushes the steel ball 6 to move laterally along the transverse groove 15 until the steel ball 6 is stuck in the trapezoidal groove 20 to achieve locking of the window frame 1 and the window sash 2.

[0016] Furthermore, the shift lever 12 is rotatably connected to the pin shaft 13 through a circular hole 24 in the middle. The upper end of the shift lever 12 is provided with a sector gear 23, and the lower end is provided with a rectangular handle.

[0017] Furthermore, a ramp 22 is provided on the side of the slider 9 close to the steel ball 6, and the oblique edge of the ramp 22 is used to push the steel ball 6 to move laterally along the transverse slide groove 15; a rack 21 meshing with the sector gear 23 is provided on the side of the slider 9 away from the steel ball 6; a top column 25 is provided on the end face of the slider 9 facing the window frame 1.

[0018] Furthermore, a spring 10 is provided between the top column 25 and the inner end surface of the longitudinal slide groove 16, and a cover plate 8 for limiting the longitudinal movement of the slider 9 is provided on the end surface of the longitudinal slide groove 16 away from the window frame 1, and the cover plate 8 is fixedly mounted on the end surface of the base 7 away from the window frame 1.

[0019] Furthermore, a limiting angle 19 for limiting the lateral movement of the steel ball 6 is provided on one end of the inner wall of the transverse sliding groove 15 close to the trapezoidal slot 20 .

[0020] Furthermore, a cavity 14 for the lever 12 to rotate is formed on the inner end surface of the window frame 1 .

[0021] Compared with the prior art, the present invention has the following main advantages:

[0022] 1. The utility model provides an openable emergency escape window suitable for pressurized buildings. By improving the connection between the window sash and the window frame and adopting a steel ball sliding opening method, the escape window can be opened quickly and conveniently. In addition, the outward-opening window structure can be used to quickly open the escape window by taking advantage of the high pressure difference between indoor and outdoor, meeting the rapid escape needs of people inside pressurized buildings in emergency situations.

[0023] 2. The lever of the utility model adopts a rotation design. The upper sector gear cooperates with the rack structure of the slider to convert the rotation of the lever into the sliding of the slider. Then, with the help of the high and low inclined platform structure of the slider, the sliding of the slider is converted into the sliding of the steel ball along the slide groove, finally realizing the opening and closing of the escape window. It has a simple structure, strong stability and easy operation.

[0024] 3. The sliding of the steel ball of the utility model is point contact, with low friction resistance, and the handle of the lever is long, which saves effort with the help of leverage, and the escape window is easy to open. At the same time, the escape window adopts a sealing structure design in many places, which can meet the airtightness requirements of pressurized buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the inner side of the emergency escape window in an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the outer side of the emergency escape window in an embodiment of the present utility model;

[0027] Figure 3 This is a partial view of the opening and closing mechanism in the embodiment of the utility model;

[0028] Figure 4 This is a top cross-sectional view of the opening and closing mechanism when unlocked in the embodiment of the utility model;

[0029] Figure 5 This is a top cross-sectional view of the opening and closing mechanism when locked in the embodiment of the utility model;

[0030] Figure 6 Schematic diagram of a slider in an embodiment of the present utility model;

[0031] Figure 7A schematic diagram of a lever in an embodiment of the present utility model;

[0032] Figure 8 It is a partial view of the transverse slide in the embodiment of the present utility model.

[0033] In the figure: 1. Window frame; 2. Window sash; 3. Opening and closing mechanism; 4. Hinge; 5. Card plate; 6. Steel ball; 7. Base; 8. Cover plate; 9. Slider; 10. Spring; 11. Handle; 12. Lever; 13. Pin; 14. Cavity; 15. Horizontal slide; 16. Vertical slide; 17. Sealing ring; 18. Sealing strip; 19. Limit angle; 20. Trapezoidal card slot; 21. Rack; 22. Inclined platform; 23. Fan gear; 24. Round hole; 25. Top column. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as a limitation on this application.

[0038] The features and performance of the present application are further described in detail below with reference to the embodiments.

[0039] Example 1: This example provides an openable emergency escape window suitable for pressurized buildings. Figures 1 to 8As shown, it specifically includes a window frame 1 welded and fixed to the pressurized building structure, a window sash 2 is provided in the middle of the window frame 1, the outer end surface of the window sash 2 is hinged to the outer end surface of the window frame 1 through a hinge 4, an opening and closing mechanism 3 is provided between the inner end surface of the window sash 2 and the inner end surface of the window frame 1, a laminated glass is provided in the middle of the window sash 2, and a sealing ring 17 and a continuously arranged sealing strip 18 are provided between the inner end surface of the window sash 2 and the outer end surface of the window frame 1.

[0040] like Figure 3 As shown, the opening and closing mechanism 3 includes a card plate 5 fixedly connected to the inner end surface of the window sash 2 and a base 7 fixedly connected to the inner end surface of the window frame 1, a handle 11 is fixedly installed on the outer wall of the card plate 5 away from the base 7, and a pin shaft 13 is provided on the outer wall of the base 7 away from the card plate 5, and a driving rod 12 is rotatably connected to the pin shaft 13.

[0041] Furthermore, a cavity 14 for the lever 12 to rotate is formed on the inner end surface of the window frame 1 .

[0042] like Figures 4-5 As shown, a longitudinal slot 16 is provided on one side of the base 7 near the lever 12 parallel to the opening direction of the window sash, and a slider 9 is slidably provided in the longitudinal slot 16;

[0043] A transverse groove 15 is provided on one side of the base 7 near the handle 11 in a direction perpendicular to the longitudinal groove 16, and a steel ball 6 is slidably arranged in the transverse groove 15;

[0044] A trapezoidal slot 20 that matches the size of the steel ball 6 is formed on the side of the clamping plate 5 at a position corresponding to the transverse sliding slot 15 .

[0045] Furthermore, the lever 12 drives the slider 9 to move longitudinally along the longitudinal groove 16 through the gear rack mechanism, and the inclined platform structure on the side of the slider 9 pushes the steel ball 6 to move laterally along the transverse groove 15 until the steel ball 6 is stuck in the trapezoidal groove 20 to achieve locking of the window frame 1 and the window sash 2.

[0046] like Figure 6 As shown, the side of the slider 9 close to the steel ball 6 is provided with an inclined platform 22, and the inclined edge of the inclined platform 22 is used to push the steel ball 6 to move laterally along the horizontal slide groove 15; the side of the slider 9 away from the steel ball 6 is provided with a rack 21 meshing with the fan gear 23; and a top column 25 is provided on the end face of the slider 9 facing the window frame 1.

[0047] Furthermore, a spring 10 is provided between the top column 25 and the inner end surface of the longitudinal slide groove 16, and a cover plate 8 for limiting the longitudinal movement of the slider 9 is provided on the end surface of the longitudinal slide groove 16 away from the window frame 1, and the cover plate 8 is fixedly mounted on the end surface of the base 7 away from the window frame 1.

[0048] like Figure 7 As shown, the shift lever 12 is rotatably connected to the pin 13 through a circular hole 24 in the middle. A sector gear 23 is provided at the upper end of the shift lever 12 and a rectangular handle is provided at the lower end.

[0049] like Figure 8 As shown, a limit angle 19 for limiting the lateral movement of the steel ball 6 is provided on one end of the inner wall of the transverse sliding groove 15 close to the trapezoidal slot 20 .

[0050] Specific working principle:

[0051] Under normal circumstances, the slider 9 moves along the longitudinal slot 16 under the push of the spring 10 to press against the limit cover 8, and the steel ball 6 is pushed by the inclined platform 22 on the side of the slider 9 to move along the transverse slot 15 to the trapezoidal slot 20 embedded in the card plate 5, as shown in FIG. Figure 5 As shown, at this time, the window frame 1 and the window sash 2 are in a locked state, and the large pressure between the window frame and the window sash causes the sealing ring 17 and the sealing strip 18 to be compressed, forming a good sealing effect, ensuring that the pressurized building has good airtightness;

[0052] When an emergency such as a fire occurs, the escape personnel quickly manually pull up the handle at the lower part of the lever 12, and the lever 12 rotates around the pin 13. Under the force transmission of the sector gear and the rack, the slider 9 moves inward along the longitudinal slide groove 16 to compress the spring 10, and the side of the steel ball 6 close to the slider 9 changes from a high platform to a low platform, thereby releasing the position constraint; at the same time, due to the existence of the pressure difference between indoor and outdoor, the inner side of the window sash 2 is subjected to a large pressure, and the corresponding card plate 5 also applies a large oblique pressure to the steel ball 6 through the trapezoidal oblique side of the trapezoidal groove 20, thereby forming a thrust to push the steel ball 6 to slide out of the groove. Under the combined action of the above two factors, the steel ball 6 will quickly slide along the transverse slide groove 15 in the direction of the slider 9, disengaging the trapezoidal groove of the card plate 5 to release the lock of the window sash. Under the action of the high pressure difference between indoor and outdoor, the escape window is quickly opened, forming an escape passage, allowing the escape personnel to quickly escape to a safe area.

[0053] Example 2: This example provides an openable emergency escape window suitable for pressurized buildings. The window frame 1 is welded to the building steel structure, and the window sash 2 is connected to the window frame 1 by a high-strength hinge 4, which is opened by rotating outward. The middle of the window sash is laminated glass, which is fixed to the window sash frame by a pressure plate, sealing strips, and screws to ensure air tightness.

[0054] Furthermore, the opening and closing mechanism 3 adopts a structural design in which the lever is pushed and pulled and the steel ball is slid to lock / unlock, so as to realize the sealing function of the window under normal circumstances and the rapid opening function in emergency situations.

[0055] Specifically, the opening and closing mechanism 3 consists of a clamping plate 5, a steel ball 6, a base 7, a cover plate 8, a slider 9, a spring 10, a handle 11, a lever 12, and a pin 13. The clamping plate 5 is welded to the inside of the window sash 2 and has a trapezoidal slot 20 on its side, which is positioned and sized to accommodate the steel ball 6. The handle 11 is welded to a suitable position on the side of the clamping plate 5 to facilitate manual operation when opening and closing the escape window.

[0056] Furthermore, the longitudinal chute 16 opened inside the base 7 is a space for the slider 9 and the spring 10 to move, and the transverse chute 15 is a channel for the steel ball 6 to slide. The edge position of the chute is designed with a limited angle 19 to prevent the steel ball from rolling down after the window is opened.

[0057] The side of the slider 9 close to the steel ball 6 is a ramp structure, the longitudinal movement of the ramp oblique side of the structure can push the steel ball 6 horizontally in the horizontal chute 15, and the height difference of the ramp structure is consistent with the sliding stroke of the steel ball 6;

[0058] The side of the slider 9 away from the steel ball 6 is a rack structure, which can transmit driving force to drive the slider 9 to move longitudinally along the longitudinal slide groove 16.

[0059] Furthermore, the elastic force of the compressed spring 10 can be used to push the slider 9 to reset; the cover 8 and the base 7 are connected by screws, which serve as a limiting device for the slider 9 to prevent the slider 9 from falling off under the action of the spring force.

[0060] Furthermore, the shift lever 12 is installed on the side of the base 7 away from the clamping plate 5, the upper part of the shift lever 12 is a sector gear structure that meshes with the rack of the slider 9, and the lower part is a rectangular handle.

[0061] Furthermore, the lever 12 is connected to the pin 13 on the base 7 through the circular hole in the middle and can rotate around the pin 13. The pin 13 is welded to the base 7, and its outer side is a pressure plate and a screw to prevent the lever 12 from falling off;

[0062] Furthermore, a sealing ring 17 and a sealing strip 18 are provided between the window frame 1 and the window sash 2 and are continuously arranged around the periphery to ensure overall airtightness.

[0063] Furthermore, all parts of this application that are not described in detail are the same as the existing technology or are implemented using the existing technology.

[0064] The above embodiments are intended only to illustrate the design concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. The scope of protection of the present invention is not limited to the above embodiments. Therefore, any equivalent changes or modifications based on the principles and design concepts disclosed in the present invention are within the scope of protection of the present invention.

Claims

1. An openable emergency escape window suitable for pressurized buildings, characterized by: The invention comprises a window frame (1) welded and fixed to a pressurized building structure, a window sash (2) being provided in the middle of the window frame (1), an outer end face of the window sash (2) being hinged to the outer end face of the window frame (1) via a hinge (4), an opening and closing mechanism (3) being provided between the inner end face of the window sash (2) and the inner end face of the window frame (1), a laminated glass being provided in the middle of the window sash (2), and a sealing ring (17) and a continuously arranged sealing strip (18) being provided between the inner end face of the window sash (2) and the outer end face of the window frame (1).

2. The openable emergency escape window suitable for pressurized buildings according to claim 1, characterized in that: The opening and closing mechanism (3) comprises a clamping plate (5) fixedly connected to the inner end surface of the window sash (2) and a base (7) fixedly connected to the inner end surface of the window frame (1); a handle (11) is fixedly mounted on the outer wall of the clamping plate (5) away from the base (7); a pin shaft (13) is provided on the outer wall of the base (7) away from the clamping plate (5); and a shifting rod (12) is rotatably connected to the pin shaft (13).

3. The openable emergency escape window suitable for pressurized buildings according to claim 2, characterized in that: A longitudinal sliding groove (16) is provided on one side of the base (7) close to the driving rod (12) in a direction parallel to the opening direction of the window sash, and a slider (9) is slidably provided in the longitudinal sliding groove (16); A transverse sliding groove (15) is provided on one side of the base (7) near the handle (11) in a direction perpendicular to the longitudinal sliding groove (16), and a steel ball (6) is slidably provided in the transverse sliding groove (15); A trapezoidal clamping groove (20) adapted to the size of the steel ball (6) is provided on the side of the clamping plate (5) at a position corresponding to the transverse sliding groove (15).

4. The openable emergency escape window suitable for pressurized buildings according to claim 3, characterized in that: The shifting rod (12) drives the slider (9) to move longitudinally along the longitudinal sliding groove (16) through a gear rack mechanism, and the inclined platform structure on the side of the slider (9) pushes the steel ball (6) to move transversely along the transverse sliding groove (15) until the steel ball (6) is stuck in the trapezoidal slot (20), thereby achieving locking of the window frame (1) and the window sash (2).

5. The openable emergency escape window suitable for pressurized buildings according to claim 4, characterized in that: The shift lever (12) is rotatably connected to the pin shaft (13) through a circular hole (24) in the middle. The upper end of the shift lever (12) is provided with a sector gear (23), and the lower end is provided with a rectangular handle.

6. The openable emergency escape window suitable for pressurized buildings according to claim 5, characterized in that: The slider (9) is provided with an inclined platform (22) on the side close to the steel ball (6), and the inclined edge of the inclined platform (22) is used to push the steel ball (6) to move laterally along the transverse sliding groove (15); the slider (9) is provided with a rack (21) meshing with the sector gear (23) on the side away from the steel ball (6); and the slider (9) is provided with a top column (25) on the end surface facing the window frame (1).

7. The openable emergency escape window suitable for pressurized buildings according to claim 6, characterized in that: A spring (10) is provided between the top column (25) and the inner end surface of the longitudinal slide groove (16); a cover plate (8) for limiting the longitudinal movement of the slider (9) is provided on the end surface of the longitudinal slide groove (16) away from the window frame (1); and the cover plate (8) is fixedly mounted on the end surface of the base (7) away from the window frame (1).

8. The openable emergency escape window suitable for pressurized buildings according to claim 3, characterized in that: An inner wall of the transverse sliding groove (15) is provided at one end close to the trapezoidal clamping groove (20) with a limiting angle (19) for limiting the transverse movement of the steel ball (6).

9. The openable emergency escape window suitable for pressurized buildings according to claim 2, characterized in that: The inner end surface of the window frame (1) is provided with a cavity (14) for the shifting rod (12) to rotate.

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