Casement fire rescue window

Abstract

The utility model belongs to the technical field of building doors and windows, and relates to a horizontally -opening type fire rescue window, which comprises detachable mullions, a fixed frame, an opening sash and a connecting assembly, the detachable mullions are connected with the fixed frame up and down through the connecting assembly, the connecting assembly comprises a fixing part, bolts, screws, a bolt and a gasket, and one set of the connecting assembly is arranged on the upper frame and the lower frame of the fixed frame, and the connecting assembly is fixed on the upper frame and the lower frame of the fixed frame through the screws. The detachable mullions are clamped in the fixed frame and are limited through the bolts, the bolts are limited through the bolt in the bolt head part, so that the detachable mullions are disassembled without tools. The utility model breaks through the limitation that the conventional horizontally -opening window can only use the fixed sash as the fire rescue window, significantly reduces the requirement on the size of the window hole, is simple to manufacture, install and disassemble, and can be used for the firefighters to quickly enter the indoor to extinguish the fire and rescue.

Description

Technical Field

[0001] This utility model belongs to the field of building door and window technology, and relates to a casement fire rescue window. Background Technology

[0002] Fire rescue windows are building components used by firefighters to enter a building during a fire, allowing them to conduct high-altitude operations from the outside. According to current building codes, the clear dimensions of a fire rescue window must be at least 1000×1000mm. Typically, due to code limitations, the opening sash of a casement window cannot be 1000mm or wider; therefore, fire rescue windows are usually located in the fixed sash section that meets the size requirements. In case of fire, firefighters enter the building by breaking the fixed sash glass. However, this method is often difficult to implement for window openings with a width of 1600mm or less: firstly, the clear width of the fixed sash section, after deducting the window frame, must be 1000mm or more; secondly, if the opening sash width is too small after deducting the fixed sash width, it often fails to meet the required ventilation area, and the resulting window is not transparent or aesthetically pleasing from both inside and outside. Therefore, it is difficult to achieve both goals simultaneously. Furthermore, for casement windows that require both sashes to be opened, in most cases, due to regulations limiting the width of the opening sashes, they are not suitable as fire rescue windows. Of course, in a very small number of high-end projects, casement windows using a mullion-less design are used; in this case, when both casement windows are opened simultaneously, they can be used as fire rescue windows. However, this type of mullion-less casement window also has the following drawbacks: high cost, high manufacturing and installation thresholds, extremely high dependence on hardware, relatively poorer airtightness and watertightness compared to casement windows with mullions, and high and troublesome repair costs in case of malfunction.

[0003] Therefore, while keeping the cost of conventional casement windows basically unchanged, it is of great practical significance to develop a casement fire rescue window that can be widely used in conventional sizes. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned deficiencies in the existing technology and provide a casement fire rescue window with a reasonable structural design. The technical solution described in this utility model can be used to achieve the requirement that the net size of the fire rescue window is at least 1000×1000mm for double casement windows with a window opening size of not less than 1200×1200mm.

[0005] The technical solution adopted by this utility model to solve the above problems is: a casement fire rescue window, characterized in that:

[0006] It includes a detachable mullion, a fixed frame, an opening sash, and connecting components; the detachable mullion is connected to the fixed frame from top to bottom via the connecting components; the connecting components include fasteners, bolts, screws, pins, and washers, and one set of connecting components is provided on the upper and lower frames of the fixed frame.

[0007] The fixing component of this utility model has an opening on the horizontal plane away from the fixing frame, and first bolt holes are provided on both sides of the fixing component. The fixing component is fixed to the upper and lower frames of the fixing frame by screws.

[0008] The detachable mullion of this utility model has obtuse angles of 160°-170° at both the upper and lower ends on the indoor side, and the vertical length of the middle position is greater than the vertical length of the two sides. Preferably, the difference in vertical length is 6-12mm. Analysis shows that when the vertical length difference is <6mm, there is a risk of lateral displacement of >0.5mm in the mullion. When the vertical length difference is >12mm, the stress concentration of the fixed frame leads to a decrease in strength of >10%.

[0009] The detachable mullion of this utility model has an upper middle part on the indoor side that is 1-3mm lower than the lower edge of the upper fixing member. When it is less than 1mm, it is easy to get stuck. When it is greater than 3mm, the bolt removal becomes more difficult after installation. The lower middle part on the indoor side is 1-3mm higher than the upper edge of the lower fixing member. When it is less than 1mm, it is easy to get stuck. When it is greater than 3mm, the bolt removal becomes more difficult after installation.

[0010] The vertical length of the two sides of the detachable mullion of this utility model is less than the vertical length of the side facing outwards. Preferably, the difference in vertical length is 2-4mm. When the difference in vertical length is less than 2mm, it is more difficult to install and push out the detachable mullion. When the difference in vertical length is greater than 4mm, it is more difficult to remove the bolts after installation.

[0011] The detachable mullion of this utility model has second bolt holes for limiting positioning on both sides at the upper and lower ends.

[0012] The detachable mullion of this utility model is snapped into the fixed frame and limited by bolts (the bolts pass through the second bolt hole of the detachable mullion and the first bolt hole of the fixing component).

[0013] The bolt of this utility model has a pin hole at its head for inserting a pin. The pin is inserted into the pin hole of the bolt to limit the bolt position. A washer is provided between the pin and the side of the detachable mullion.

[0014] Compared with the prior art, this utility model has the following advantages and effects:

[0015] This invention breaks through the limitation that conventional casement windows can only use fixed sashes as fire rescue windows, making the installation of fire rescue windows more flexible.

[0016] This invention significantly reduces the requirements for window opening size. It can meet the size requirements of fire rescue windows for double-leaf casement windows with a window opening size of not less than 1200×1200mm after opening and pushing out the detachable mullion.

[0017] Except for the detachable mullion and connecting components, which differ from conventional casement windows, the other components of this utility model are basically the same. It is easy to manufacture and install, and the cost is basically the same as that of conventional casement windows, making it easy to implement and promote.

[0018] This utility model is easy to operate when used for fire rescue after a fire occurs. Firefighters only need to pull out the bolts and pins in the upper and lower connecting components, and then pull the bolts out of the connecting components. The detachable mullion can then be pushed from the indoor side to the outdoor side. Then, the opening sashes of the double-leaf casement window can be opened to the maximum, which meets the requirement that the net size of the fire rescue window is at least 1000×1000mm, thereby enabling firefighters to quickly enter the room for fire fighting and rescue. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the elevation structure of the interior side of Embodiment 1 of this utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of section I-I;

[0021] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of section II-II;

[0022] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of section III-III;

[0023] Figure 5 for Figure 2 A magnified structural diagram of part B in the middle section;

[0024] Figure 6 This is a schematic diagram of the exterior facade of the detachable mullion in its semi-open state after disassembly, according to Embodiment 1 of this utility model.

[0025] Figure 7 for Figure 1 Axonometric structural schematic diagram of section A;

[0026] Figure 8 for Figure 1 Exploded view of section A;

[0027] In the diagram: 1-Removable mullion, 2-Fixed frame, 2-1-Lower frame, 2-2-Upper frame, 3-Opening sash, 4-Fixing component, 5-Bolt, 6-Screw, 7-Pin, 7-1-Pin hole, 8-Washer, 9-First bolt hole, 10-Second bolt hole, 11-Fire rescue window sign. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0029] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1

[0030] See Figures 1-8 The embodiments of this utility model include a detachable mullion 1, a fixed frame 2, an opening fan 3, and a connecting component; the detachable mullion 1 is connected to the fixed frame 2 vertically via the connecting component; the connecting component includes a fastener 4, a bolt 5, a screw 6, a pin 7, and a washer 8, and a set of the connecting component is provided on the upper frame 2-2 and the lower frame 2-1 of the fixed frame 2.

[0031] The fastener 4 has an opening on the horizontal plane away from the fixed frame 2, which makes it easy to fix it to the upper frame 2-2 and the lower frame 2-1 of the fixed frame 2 by screws 6; the fastener 4 has first bolt holes 9 on both sides, and the fastener 4 is fixed to the upper frame 2-2 and the lower frame 2-1 of the fixed frame 2 by screws 6.

[0032] The upper and lower ends of the detachable mullion 1 on the indoor side are both obtuse angles of 165°, and the vertical length of the middle position is greater than the vertical length of the two sides, with a vertical length difference of 9mm; at this time, the maximum lateral displacement of the detachable mullion 1 after applying external force is ≤0.3mm, and the stress concentration of the fixed frame leads to a strength decrease of ≤5%.

[0033] The upper middle part of the detachable mullion 1 on the indoor side is 2mm lower than the lower edge of the upper fixing part 4, and the lower middle part on the indoor side is 2mm higher than the upper edge of the lower fixing part 4; at this time, the detachable mullion 1 can be installed and removed with appropriate tightness.

[0034] The vertical length of the indoor side of the two sides of the detachable mullion 1 is less than the vertical length of the outdoor side, with a difference of 3mm; at this time, the detachable mullion 1 can be installed and removed with appropriate tightness.

[0035] The technical parameters of the detachable mullion 1 in this embodiment 1 are the optimal combination of performance parameters.

[0036] The head of bolt 5 is provided with a pin hole 7-1 for mounting pin 7.

[0037] During installation, first install the fixed frame 2 into the window opening. Then, fix the fastener 4 to the upper frame 2-2 and lower frame 2-1 of the fixed frame 2 with screws 6. Next, push the detachable mullion 1 into the fixed frame 2 from the outside side. After fine-tuning the position, insert the bolt 5 through the second bolt hole 10 of the detachable mullion 1 into the fastener 4. Then, put the washer 8 on the head of the bolt 5 and fit it tightly against the side of the detachable mullion 1. Then, insert the pin 7 into the pin hole 7-1 of the bolt 5. Note that the head of the pin 7 in the bolt 5 should be lower than the tail to ensure that the pin does not fall off after installation. At this point, the entire casement fire rescue window is installed. Due to the limiting effect of the bolt 5, the detachable mullion 1 cannot move forward or backward after installation; and due to the aforementioned design features of the detachable mullion 1, it cannot move to the left or right after installation. In short, the detachable mullion 1 is firmly fixed to the fixed frame 2 after installation.

[0038] To facilitate firefighters' quick disassembly of the detachable mullion 1 upon arrival at the scene, a brief instruction manual can be marked on the side of the detachable mullion 1 near the latch 7 to help firefighters quickly master the disassembly process.

[0039] After a fire breaks out, if firefighters reach the fire rescue window via a ladder and the operable sash 3 is open, they only need to pull out the pin 7 from the bolt 5 in the upper and lower connecting components, and then pull the bolt 5 out of the connecting components. This allows the detachable mullion 1 to be pushed from the inside to the outside. Then, both operable sashes 3 of the double-leaf casement window can be opened to their maximum extent, meeting the requirement that the net size of the fire rescue window be at least 1000×1000mm, thus enabling firefighters to quickly enter the room for fire fighting and rescue. If the operable sash 3 is closed but someone inside helps open the window, the same steps can be followed after opening the window to enter the room for fire fighting and rescue. If the operable sash 3 is closed and no one inside helps open the window, the glass of one operable sash 3 can be broken to open both operable sashes 3, and then the same steps can be followed to enter the room for fire fighting and rescue. The entire operation is convenient and quick, requires no special tools, and significantly reduces the probability of breaking the window to enter the room compared to using a fixed window as the fire rescue window.

[0040] After the firefighting and rescue operation is completed, the detachable mullion 1 can be reinstalled and restored as described above, and the window glass can be reinstalled as needed according to the actual situation before the original window can be used normally. Example 2

[0041] This embodiment makes certain adjustments to the technical parameters of the detachable mullion 1 based on Embodiment 1:

[0042] The upper and lower ends of the detachable mullion 1 on the indoor side are both obtuse angles of 160°, and the vertical length of the middle position is greater than the vertical length of the two sides, with a vertical length difference of 12mm. At this time, the maximum lateral displacement of the detachable mullion 1 after applying external force is ≤0.1mm, and the stress concentration of the fixed frame leads to a strength decrease of ≤10%.

[0043] The upper middle part of the detachable mullion 1 on the indoor side is 1mm lower than the lower edge of the upper fixing part 4, and the lower middle part on the indoor side is 1mm higher than the upper edge of the lower fixing part 4. At this time, the detachable mullion 1 is relatively tight to install and remove, but it can meet the requirements of single person disassembly by hand.

[0044] The vertical length of the indoor side of the two sides of the detachable mullion 1 is less than that of the outdoor side, with a difference of 2mm. At this time, the detachable mullion 1 is relatively tight to install and remove, but it can meet the requirements of single-person manual disassembly. Example 3

[0045] This embodiment makes certain adjustments to the technical parameters of the detachable mullion 1 based on Embodiment 1:

[0046] The upper and lower ends of the detachable mullion 1 on the indoor side are both obtuse angles of 170°, and the vertical length of the middle position is greater than the vertical length of the two sides, with a vertical length difference of 6mm; at this time, the maximum lateral displacement of the detachable mullion 1 after applying external force is ≤0.5mm, and the stress concentration of the fixed frame leads to a strength decrease of ≤2%.

[0047] The upper middle part of the detachable mullion 1 on the indoor side is 3mm lower than the lower edge of the upper fixing part 4, and the lower middle part on the indoor side is 3mm higher than the upper edge of the lower fixing part 4; at this time, the bolts of the detachable mullion 1 are slightly more difficult to remove after installation.

[0048] The vertical length of the indoor side of the two sides of the detachable mullion 1 is less than that of the outdoor side, with a difference of 4mm. In this case, the bolts of the detachable mullion 1 are slightly more difficult to remove after installation.

[0049] The above description is only one embodiment of this utility model and is not intended to limit this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model, including any parameter combination that enables detachable horizontal locking of the mullion and guided extension, should be included within the protection scope of this utility model.

Claims

1. A casement fire rescue window, characterized in that: It includes a detachable mullion (1), a fixed frame (2), an opening fan (3), and a connecting component; the detachable mullion (1) is connected to the fixed frame (2) vertically via the connecting component; the connecting component includes a fastener (4), a bolt (5), a screw (6), a pin (7), and a washer (8), and a set of connecting components is provided on the upper frame (2-2) and the lower frame (2-1) of the fixed frame (2).

2. A casement fire rescue window according to claim 1, characterized in that: The fixing member (4) is open on the horizontal plane away from the fixing frame (2), and the fixing member (4) is provided with first bolt holes (9) on both sides. The fixing member (4) is fixed to the upper frame (2-2) and lower frame (2-1) of the fixing frame (2) by screws (6).

3. A casement fire rescue window according to claim 1, characterized in that: The detachable mullion (1) has obtuse angles of 160°-170° at both the top and bottom ends on the indoor side, and the vertical length of the middle position is greater than the vertical length of the two sides.

4. A casement fire rescue window according to claim 1, characterized in that: The detachable mullion (1) has its upper middle part on the indoor side lower than the lower edge of the upper fixing member (4), and its lower middle part on the indoor side higher than the upper edge of the lower fixing member (4).

5. A casement fire rescue window according to claim 1, characterized in that: The vertical length of the indoor side of the detachable mullion (1) is less than the vertical length of the outdoor side.

6. A casement fire rescue window according to claim 1, characterized in that: The detachable mullion (1) has two side holes (10) for limiting positioning on both sides at the top and bottom ends.

7. A casement fire rescue window according to claim 1, characterized in that: The detachable mullion (1) is snapped into the fixed frame (2) and limited by bolts (5).

8. A casement fire rescue window according to claim 1, characterized in that: The head of the bolt (5) is provided with a pin hole (7-1) for installing a pin (7). The pin (7) is inserted into the pin hole (7-1) of the bolt (5) to limit the bolt (5). A washer (8) is provided between the pin (7) and the side of the detachable mullion (1).

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