Suspended sash window capable of automatically releasing limit in fire
By installing a limit mechanism and an automatic alarm system on the suspended windows, the limit lock is automatically released during fire, which solves the problem of insufficient effective area of suspended windows in high-rise buildings during fire, and realizes the natural smoke exhaust effect during fire, satisfying fire protection Standardize and automatically reset after the fire ends.
Patent Information
- Application Number
- CN202323426634.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-14
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-14
AI Technical Summary
It is difficult for the hanging windows of high-rise buildings to achieve sufficient natural smoke exhaust area during fire and cannot meet the requirements of fire protection specifications.
A suspended window that can automatically release the limit during fire is designed. By installing a limit mechanism on the window frame, using permanent magnets, coils, springs and limit lock tongues, combined with the fire automatic alarm system or temperature release device, it will automatically turn on. The window sash is effective ventilation area that increases the opening angle to meet fire protection standards.
Automatically release the limit lock during a fire, increase the opening angle of the suspended window, improve the effective area of natural smoke exhaust, meet the requirements of fire protection specifications, and automatically reset after the fire is over, which is convenient to operate and is suitable for promotion and application.
Smart Images
Figure CN222184528U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fire fighting equipment, and in particular relates to a hanging window which can automatically release the limit in case of fire. Background Art
[0002] In high-rise buildings with a large number of glass curtain walls, the effective area of the suspended windows as natural smoke exhaust windows when fully opened is often difficult to reach 50% of the window area, resulting in the total effective area being less than 2% of the building area of the room, which does not meet the natural smoke exhaust conditions. According to Article B.0.4 of the General Code for Energy Conservation and Renewable Energy Utilization in Buildings GB 55015-2021:
[0003] B.0.4 The effective ventilation area of external windows is the basis for judging whether the natural ventilation design of public buildings complies with regulations. Therefore, this article clarifies the calculation method of the effective ventilation area of external windows.
[0004] The specific analysis of the effective ventilation area of the inner-hung window and the outer-hung window opening sash is as follows: According to the requirements of the industry standard "Glass Curtain Wall Engineering Technical Specifications" JGJ102-2003: "The setting of curtain wall opening windows should meet the requirements of use function and facade effect, and should be easy to open and close, and avoid being set in beams, columns, partitions and other positions. The opening angle of the opening sash should not be greater than 30°, and the opening distance should not be greater than 300mm." This is mainly for safety considerations. According to Article 4.3.5 of the "Technical Standard for Building Smoke Prevention and Exhaust Systems" GB51251-2017:
[0005] 4.3.5 Unless otherwise specified in this standard, the effective opening area of the natural smoke exhaust window (opening) shall also comply with the following provisions:
[0006] 1 When a suspended window with an opening angle greater than 70° is used, its area should be calculated according to the area of the window; when the window angle is less than or equal to 70°, its area should be calculated according to the horizontal projection area when the window is fully opened.
[0007] 2 When using casement windows with an opening angle greater than 70°, its area should be calculated according to the area of the window; when the window angle is less than or equal to 70°, its area should be calculated according to the vertical projection area when the window is fully opened.
[0008] Therefore, it is necessary to design a hanging window that can meet fire protection requirements. Utility Model Content
[0009] The utility model provides a hanging window which can automatically release the limit in case of fire, which can effectively solve the above problems.
[0010] The utility model is achieved in this way:
[0011] A suspended window which can automatically release its limit in case of fire comprises a window frame and a window sash hinged thereto, wherein the window sash is provided with sliding rails on both sides near the hinged end, and a push-pull rod is provided between the window frame and the slider of the sliding rail; the window frame is provided with a guide rail away from the hinged end, and at least one side of the window frame is provided with a guide rail, and a limit rod is provided between the slider of the guide rail and the window sash; and at least one side of the guide rail is provided with a limit mechanism, and the limit mechanism is fixed in the window frame.
[0012] The guide rail is provided with a first guide rail and a second guide rail, the first guide rail and the second guide rail are arranged on both sides of the window frame, the length of the first guide rail is smaller than the second guide rail, and the limiting mechanism is arranged at the upper end of the first guide rail.
[0013] A third guide rail is provided on at least one side of the window frame, and the third guide rail is provided on the side of the window frame. A limiting mechanism is provided in the middle of the third guide rail on at least one side, and a limiting hole is provided on the third guide rail corresponding to the position of the limiting mechanism.
[0014] As a further improvement, the limiting mechanism is provided with a shell, a permanent magnet, a telescopic shaft, a coil, a spring and a limiting lock tongue, the permanent magnet is installed in the shell, the coil is sleeved on the telescopic shaft, the coil is arranged between the permanent magnets, the spring is arranged in the shell and the other end is abutted against the telescopic shaft, and the limiting lock tongue is arranged at the front end of the telescopic shaft; the coil is electrically connected to the automatic fire alarm system linkage or the temperature release device.
[0015] As a further improvement, the coil is provided with a remote control module connected to a power source.
[0016] As a further improvement, a slide groove is provided on the inner side of the window frame or in the shell, an unlocking block is provided in the slide groove, the unlocking block is provided with a handle, the front end of the unlocking block is wedge-shaped, and the wedge-shaped inclined surface abuts against the limiting lock tongue.
[0017] As a further improvement, the contact surface between the limit locking tongue and the unlocking block is provided with a release inclined surface parallel to the wedge-shaped inclined surface.
[0018] As a further improvement, the handle is located on the inner side of the hanging window.
[0019] As a further improvement, the maximum window opening angle of the window sash corresponding to the first guide rail is 30°, and the maximum window opening angle of the window sash corresponding to the sliding rail and the second guide rail is greater than or equal to 70°.
[0020] As a further improvement, the maximum window opening angle of the window sash corresponding to the first guide rail and the third guide rail in normal state is 30°, and in case of fire, the corresponding maximum window opening angle of the window sash is greater than or equal to 70°.
[0021] As a further improvement, the coil is connected to a reset button, and the reset button is connected to a power supply.
[0022] The beneficial effect of the utility model is that the suspended window is usually equipped with a limit lock like the traditional top-hung window. When the fire is confirmed, it is linked with the fire automatic alarm system or the temperature release device, or opened by a remote manual control mechanism to release the smoke exhaust window limit lock tongue, increase the opening angle of the top-hung window, and thus increase the effective area when opened to meet the specification requirements. The product is based on the traditional top-hung window, and a limit mechanism is added to the guide rail on one side of the window frame. In the normal state of the product, the coil in the device is not energized, and the limit lock remains in a pop-up state to prevent the limit rod from falling out of the guide rail and limiting the window opening angle; in the event of a fire, it is linked with the fire automatic alarm system or the temperature release device, or opened by a remote manual control mechanism to energize the coil, and the coil group moves toward the spring under the action of electromagnetic force, pulling the limit lock tongue into the device, and the slider of the limit rod can completely slide out of the first guide rail, and the window opening angle is no longer limited; after the fire, the coil returns to the non-energized state, and the limit lock tongue is reset due to elasticity. The slider of the limit rod presses the limit lock tongue to cause the spring to contract and retract into the guide rail. After the limit lock tongue loses pressure, it resets due to elasticity, and the top hung window resets to its normal state. If there is a fault and the power cannot be turned on, the handle can be pushed down to press the limit lock tongue into the device. After the fire is over, the switch needs to be manually reset to the closed state. The structure of the hanging window device is cleverly designed to meet fire protection requirements, and the unlocking and resetting operation is convenient, which is conducive to promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of a hanging window that can automatically release the limit in case of fire in the utility model;
[0025] Figure 2 It is a front schematic diagram of a hanging window embodiment of the utility model that can automatically release the limit in case of fire;
[0026] Figure 3 This is a schematic diagram of a closed state provided by an embodiment of a hanging window that can automatically release the limit in case of fire according to the utility model;
[0027] Figure 4 yes Figure 3 A partial schematic diagram of
[0028] Figure 5 It is a partial schematic diagram of a closed state provided by another embodiment of the utility model of a hanging window that can automatically release the limit in case of fire;
[0029] Figure 6 yes Figure 3 Schematic diagram of the structure of the middle limit mechanism;
[0030] Figure 7 This is a schematic diagram of a normal opening state provided by an embodiment of a hanging window that can automatically release the limit in case of fire in the utility model;
[0031] Figure 8 yes Figure 7 A partial schematic diagram of
[0032] Fig. 9 It is a schematic diagram of the opening of the limit mechanism in the activated state provided in an embodiment of the utility model of a hanging window that can automatically release the limit in case of fire;
[0033] Fig.10 yes Fig. 9 A partial schematic diagram of
[0034] Fig.11 It is a schematic diagram of the opening state of a fire house provided by an embodiment of a hanging window that can automatically release the limit in case of fire in the utility model;
[0035] Fig.12 yes Fig.11 A partial schematic diagram of
[0036] Fig.13 This is a schematic diagram of the reset state of the unlocking block provided in an embodiment of the utility model of a suspended window that can automatically release the limit in case of fire;
[0037] Fig.14 The utility model is a schematic diagram of an unlocking state of an unlocking block provided in an embodiment of a hanging window capable of automatically releasing a limit in case of fire.
[0038] Reference numerals:
[0039] Window frame 1; window sash 2; slide rail 21; push-pull rod 22; guide rail 11; limit rod 12; limit mechanism 3; first guide rail 111; second guide rail 112; third guide rail 113; limit hole 1131; housing 31; permanent magnet 32; telescopic shaft 33; coil 34; spring 35; limit lock tongue 36; slide slot 37; unlocking block 38; handle 39; remote control module 4. DETAILED DESCRIPTION
[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.
[0041] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0042] In the description of the present invention, the terms "upper", "middle", "side", "side", "upper side", "end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention.
[0043] Reference Figure 1-14 As shown, a hanging window that can automatically release the limit in case of fire includes a window frame 1 and a window sash 2 hinged thereto, wherein the window sash 2 is provided with slide rails 21 on both sides near the hinged end, and a push-pull rod 22 is provided between the window frame 1 and the slider of the slide rail 21; the window frame 1 is provided with a guide rail 11 away from the hinged end, at least one side of the window frame 1 is provided with a guide rail 11, and a limit rod 12 is provided between the slider of the guide rail 11 and the window sash 2; at least one side of the guide rail 11 is provided with a limit mechanism 3, and the limit mechanism 3 is fixed in the window frame 1.
[0044] The guide rail 11, the limit rod 12 and the limit mechanism 3 are arranged in the following forms: one is the first guide rail 111 and the second guide rail 112, after release, the sliders on both sides are separated from the guide rail 11, which is convenient for opening; the second guide rail 112 is slightly longer than the first guide rail 111, which only prevents the sliders of the second guide rail 112 from falling out during normal use; the other is the third guide rail 113 on both sides, after release, the sliders on both sides are still on the guide rail 11, which plays a better supporting role and is also convenient for resetting, and relatively greater force is required for window opening. Thus, different forms of window opening restrictions and window opening range adjustments are achieved.
[0045] Furthermore, the guide rail 11 includes a first guide rail 111 and a second guide rail 112, which are arranged on both sides of the window frame 1, the first guide rail 111 is shorter than the second guide rail 112, and the limiting mechanism 3 is arranged at the upper end of the first guide rail 111. The length of the first guide rail 111 may be slightly shorter than that of the second guide rail 112.
[0046] When released, the sliders on both sides are separated from the guide rails 11 and supported only by the slide rails and the push-pull rods, so that the window sash 2 can be opened at a large angle more easily and labor-savingly.
[0047] Furthermore, at least one side of the window frame 1 is provided with a third guide rail 113, and the third guide rail 113 is arranged on the side of the window frame 1. A limiting mechanism 3 is provided in the middle of at least one side of the third guide rail 113, and a limiting hole 1131 is provided on the third guide rail 113 corresponding to the position of the limiting mechanism 3.
[0048] The limiting mechanism 3 limits the sliding of the slider. After the limit is released, the slider can still slide on the third guide rail 113. This design requires the guide rail 11 to be modified, but the overall stability of the window sash 2 is better.
[0049] Furthermore, the limiting mechanism 3 is provided with a shell 31, a permanent magnet 32, a telescopic shaft 33, a coil 34, a spring 35 and a limiting lock tongue 36, the permanent magnet 32 is installed in the shell 31, the coil 34 is sleeved on the telescopic shaft 33, the coil 34 is arranged between the permanent magnets 32, the spring 35 is arranged in the shell 31 and the other end is abutted against the telescopic shaft 33, and the limiting lock tongue 36 is arranged at the front end of the telescopic shaft 33; the coil 34 is electrically connected to the automatic fire alarm system linkage or the temperature release device.
[0050] The electromagnetic force generated by the coil 34 of the limiting mechanism 3 after being powered on forms an interaction force with the permanent magnet 32 and compresses the spring 35 , so that the limiting lock tongue 36 moves toward the spring 35 side, releasing the limitation on the slider on the guide rail 11 .
[0051] Furthermore, the coil 34 is provided with a remote control module 4 connected to a power source.
[0052] Through wireless connection, send instructions to unlock. The remote control module 4 uses existing technology for wireless connection.
[0053] Furthermore, a slide groove 37 is provided inside the window frame 1 or the shell 31 , and an unlocking block 38 is provided inside the slide groove 37 . The unlocking block 38 is provided with a handle 39 . The front end of the unlocking block 38 is wedge-shaped, and the wedge-shaped inclined surface abuts against the limiting lock tongue 36 .
[0054] Furthermore, the abutting surfaces of the position-limiting locking tongue 36 and the unlocking block 38 are provided with a release inclined surface parallel to the wedge-shaped inclined surface.
[0055] Furthermore, the handle 39 is located on the inner side of the hanging window.
[0056] Furthermore, the maximum window opening angle of the window sash corresponding to the first guide rail 111 is 30°, and the maximum window opening angle of the window sash corresponding to the slide rail 21 and the second guide rail 112 is greater than or equal to 70°, and can be 71°.
[0057] Furthermore, the maximum opening angle of the window sash 2 corresponding to the first guide rail 111 and the third guide rail 113 in normal state is 30°, and in case of fire, the maximum opening angle of the corresponding window sash 2 is greater than or equal to 70°, and can be 71°.
[0058] Furthermore, the coil 34 is connected to a reset button, and the reset button is connected to a power source.
[0059] The reverse current is generated by the reset button, so that the coil 34 regains the current, forms an electromagnetic force, and retracts the limit lock tongue 36 toward the spring 35 side, making it convenient to reinstall the slider of the guide rail 11 into place.
[0060] For the third guide rail 113, the contact surface between the limit lock tongue 36 and the unlocking block 38 is provided with a release inclined surface parallel to the wedge-shaped inclined surface. When the window sash 2 is closed, the slider can directly push the limit lock tongue 36 into the housing 31 to achieve reset.
[0061] Under normal conditions, the coil 34 in the device is not energized, and the limit lock remains in the pop-up state, preventing the limit rod 12 from slipping out of the guide rail 11 and limiting the window opening angle; in case of fire, the device is linked with the automatic fire alarm system or the temperature release device, or is opened by a remote manual control mechanism to energize the coil 34. The coil 34 group moves toward the spring 35 under the action of the electromagnetic force, pulling the limit lock tongue 36 into the device, and the slider of the limit rod 12 can completely slide out of the first guide rail 111, and the window opening angle is no longer restricted; after the fire, the coil 34 returns to the non-energized state. The slider of the limit rod 12 causes the spring 35 to contract by pressing the limit lock tongue 36 and retracts into the guide rail 11. After the limit lock tongue 36 loses pressure, it resets due to elasticity, and the top-hung window resets to the normal state. If a fault occurs and the power cannot be turned on, the handle 39 can be pushed downward to press the limit lock tongue 36 into the device. After the fire is over, the switch needs to be manually reset to the closed state. The hanging window device has an ingenious structural design, can meet fire protection requirements, and is easy to unlock and reset, which is conducive to promotion and application.
[0062] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A suspended window that can automatically release the limit in case of fire, comprising a window frame and a window sash hinged thereon, wherein the window sash is provided with slide rails on both sides near the hinged end, and a push-pull rod is provided between the window frame and the slider of the slide rail; characterized in that: The window frame is provided with a guide rail away from the hinged end, at least one side of the window frame is provided with a guide rail, a limiting rod is provided between the slider of the guide rail and the window sash; at least one side of the guide rail is provided with a limiting mechanism, and the limiting mechanism is fixed in the window frame.
2. A suspended window that can automatically release the limit in case of fire according to claim 1, characterized in that: The guide rail is provided with a first guide rail and a second guide rail, the first guide rail and the second guide rail are arranged on both sides of the window frame, the length of the first guide rail is smaller than the second guide rail, and the limiting mechanism is arranged at the upper end of the first guide rail.
3. A suspended window that can automatically release the limit in case of fire according to claim 1, characterized in that: A third guide rail is provided on at least one side of the window frame, and the third guide rail is provided on the side of the window frame. A limiting mechanism is provided in the middle of the third guide rail on at least one side, and a limiting hole is provided on the third guide rail corresponding to the position of the limiting mechanism.
4. A suspended window that can automatically release the limit in case of fire according to claim 1, 2 or 3, characterized in that: The limiting mechanism is provided with a shell, a permanent magnet, a telescopic shaft, a coil, a spring and a limiting lock tongue. The permanent magnet is installed in the shell, the coil is sleeved on the telescopic shaft, the coil is arranged between the permanent magnets, the spring is arranged in the shell and the other end is abutted against the telescopic shaft, and the limiting lock tongue is arranged at the front end of the telescopic shaft; the coil is electrically connected to the automatic fire alarm system linkage or the temperature release device.
5. A suspended window that can automatically release the limit in case of fire according to claim 4, characterized in that: The coil is provided with a remote control module connected with a power source.
6. A suspended window that can automatically release its limit in case of fire according to claim 1, characterized in that: A slide groove is arranged inside the window frame or the shell, an unlocking block is arranged in the slide groove, and the unlocking block is provided with a handle. The front end of the unlocking block is wedge-shaped, and the wedge-shaped inclined surface abuts against the limit lock tongue.
7. A suspended window that can automatically release the limit in case of fire according to claim 6, characterized in that: The contact surface between the limit lock tongue and the unlocking block is provided with a release inclined surface parallel to the wedge-shaped inclined surface.
8. A suspended window that can automatically release its limit in case of fire according to claim 6, characterized in that: The handle is located inside the hanging window; the coil is connected with a reset button, and the reset button is connected with a power source.
9. A suspended window that can automatically release its limit position in case of fire according to claim 2, characterized in that: The maximum opening angle of the window sash corresponding to the first guide rail is 30°, and the maximum opening angle of the window sash corresponding to the sliding rail and the second guide rail is greater than or equal to 70°.
10. A suspended window that can automatically release its limit in case of fire according to claim 2, characterized in that: The maximum window opening angle of the window sash corresponding to the first guide rail and the third guide rail in normal state is 30°. In case of fire, the maximum window opening angle of the corresponding window sash is greater than or equal to 70°.