An automatic opening smoke vent

Abstract

The utility model relates to exhaust fan design technical field, especially a kind of automatic opening type smoke exhaust window. Including window frame, bottom rotation is installed in the window frame to open or close the window sash of window frame, install in the window sash, for when the window sash closes the window frame, with the elastic member of window frame elastic extrusion, install in the window frame of electromagnetic lock body, and install in the window sash, for when the window sash closes the window frame, with the cooperation of the suction plate of electromagnetic lock body. When fire occurs, non-fire power will be automatically or manually shut off by fire control system, electromagnetic lock body loses power, silicon steel sheet loses the adsorption effect on iron plate, window sash and window frame are separated, and the elastic member installed in window sash opens window sash using stored energy, simultaneously cooperates with the self-weight of window sash, realizes the purpose of quickly opening window natural smoke exhaust.

Description

Technical Field

[0001] This utility model relates to the field of smoke exhaust fan design technology, and in particular to an automatically opening smoke exhaust window. Background Technology

[0002] In the field of building fire protection, natural smoke exhaust windows, as key components that meet the requirements of standards such as the "Technical Standard for Building Smoke Control and Exhaust Systems", are widely used in high-rise buildings, industrial plants, shopping malls, underground garages and public entertainment venues where natural smoke exhaust is required. Their core function is to open quickly in the event of a fire, and exhaust the dense smoke, toxic gases (such as carbon monoxide and hydrogen sulfide) and high-temperature hot air generated by combustion through air convection, thus buying time for people to evacuate and reducing the temperature of the fire scene to reduce the risk of fire spread.

[0003] However, existing natural smoke extraction window technology still has many pain points that urgently need to be addressed, as follows:

[0004] Limitations of manually operated smoke exhaust windows: Traditional manually operated natural smoke exhaust windows rely on on-site operation by personnel. In the event of a fire, dense smoke often obscures vision, high temperatures cause people to panic, making it difficult for personnel to approach the window to complete the opening operation. If no one is in the building or people have evacuated, the smoke exhaust window will be completely unable to be activated, missing the best time for smoke exhaust and easily causing "smoke asphyxiation" accidents.

[0005] Potential reliability issues with electrically operated smoke exhaust windows: Most mainstream electrically operated smoke exhaust windows on the market are driven by motors to open the window sash, and their operation relies on backup fire protection power or an independent power supply line. However, in a fire scenario, high temperatures can easily burn out the motor coils or power supply lines, causing the motor to fail. If the backup fire protection power supply capacity is insufficient, switching failures occur, or the motor becomes stuck due to long-term inactivity, the smoke exhaust window will not be able to open normally, creating a fire hazard of being "useless".

[0006] Maintenance and response issues of temperature-triggered smoke exhaust windows: Some smoke exhaust windows use a temperature-sensitive glass bulb (filled with a thermosensitive liquid) for triggering. When the ambient temperature reaches a threshold, the glass bulb breaks, and the window opens through a mechanical structure. However, this type of product has two core drawbacks: First, the response speed is slow (the thermosensitive liquid needs time to expand when heated), making it difficult to meet the needs of rapid smoke exhaust in the early stages of a fire; second, the temperature-sensitive glass bulb is a disposable component, requiring replacement after triggering, resulting in high maintenance costs and susceptibility to false triggering in non-fire scenarios such as high summer temperatures or proximity of heating equipment.

[0007] Therefore, it is necessary to propose a technical means to solve the above-mentioned defects. Utility Model Content

[0008] The present invention adopts the following technical solution:

[0009] An automatic opening smoke exhaust window includes a window frame, a window sash rotatably mounted on the bottom of the window frame for opening or closing the window frame, an elastic element mounted on the window sash for elastically pressing against the window frame when the window sash closes the window frame, an electromagnetic lock body mounted on the window frame, and a suction plate mounted on the window sash for cooperating with the electromagnetic lock body when the window sash closes the window frame.

[0010] Preferably, the elastic element is installed on the side of the window sash; the window frame is provided with a mating block that is opposite to the elastic element when the window sash is closed in the window frame; the mating block is provided with a mating groove for the elastic element to be inserted; in the closed state, the mating block is elastically pressed into the mating groove.

[0011] Preferably, the electromagnet body is installed on the upper part of the window frame; the suction plate is correspondingly installed on the upper part of the window sash.

[0012] Preferably, a limiting band is connected between the window frame and the window sash.

[0013] Preferably, the side of the window frame is provided with a vertical sliding groove; one side of the vertical sliding groove is provided with a communicating groove that communicates with the vertical sliding groove; wherein, it also includes a sliding block and a tightening screw; the sliding block is slidably installed in the vertical sliding groove; one end of the tightening screw is installed in the sliding block, and the other end extends out of the vertical sliding groove through the communicating groove; one end of the limiting band is located in the vertical sliding groove and connected to the sliding block, and the other end extends out of the vertical sliding groove and is connected to the window sash.

[0014] Based on the structural design and working principle of this utility model, it has the following significant advantages compared with the prior art:

[0015] 1. Rapid and highly reliable fire response, avoiding "failure risk": This solution utilizes a triple linkage mechanism of "electromagnetic lock power failure unlocking + elastic element energy storage release + window sash self-weight," eliminating reliance on easily faulty components such as motors and temperature sensors. In case of fire, the fire control system automatically / manually shuts off non-fire-fighting power (compliant with standard fire safety regulations), the electromagnetic lock body immediately loses power, and the adsorption force of the silicon steel sheet on the suction plate disappears; the elastic potential energy stored in the elastic element is released instantaneously, and combined with the self-weight advantage of the rotating bottom of the window sash, the window sash can be opened within 3-5 seconds (far faster than the 10-15 second start-up response time of the electric motor and the 5-8 second trigger time of the temperature-sensing glass bulb), effectively avoiding failure problems of existing technologies such as "motor failure, circuit burnout, and temperature sensor misjudgment."

[0016] 2. Adjustable opening angle to adapt to different building smoke exhaust needs; This solution uses a limit band adjustment structure of "vertical sliding groove + sliding block + tightening screw" to flexibly adjust the window opening angle according to the building type (such as factories requiring a large smoke exhaust area, office buildings requiring both safety and smoke exhaust) and floor height (smoke exhaust volume requirements differ between 3m and 5m floor heights): simply loosen or tighten the screw to slide the slider, change the extension length of the limit band, and thus control the maximum opening angle of the window sash. This avoids insufficient smoke exhaust volume due to an excessively small angle, while also preventing the window sash from shattering due to impact from an excessively large angle, achieving a balance between "smoke exhaust efficiency" and "structural safety". Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of an automatically opening smoke exhaust window according to the present invention;

[0018] Figure 2 for Figure 1 Another overall view;

[0019] Figure 3 This is a cross-sectional structural diagram of an automatically opening smoke exhaust window according to the present invention.

[0020] Figure 4 This is an exploded schematic diagram of the elastic element in an automatically opening smoke exhaust window according to the present invention.

[0021] Figure 5 This is a circuit diagram of an automatically opening smoke exhaust window according to the present invention. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figures 1 to 4 An automatic opening smoke exhaust window includes a window frame 10, a window sash 20 rotatably mounted on the bottom of the window frame 10 for opening or closing the window frame 10, an elastic member 50 mounted on the window sash 20 for elastically pressing against the window frame 10 when the window sash 20 closes the window frame 10, an electromagnetic lock body 30 mounted on the window frame 10, and a suction plate 40 mounted on the window sash 20 for cooperating with the electromagnetic lock body 30 when the window sash 20 closes the window frame 10.

[0026] Specifically, in this embodiment, the electromagnetic lock body 30 is powered by a switching power supply A. Under normal conditions, the switching power supply A converts the 220V non-fire protection power supply B (ordinary lighting power supply, power equipment power supply, etc.) into a 24V DC power supply C for the electromagnetic lock body 30. When the window sash 20 is closed to the window frame 10, the electromagnetic lock body 30 is energized. Through the adsorption effect of the silicon steel sheet and the suction plate 40 of the electromagnetic lock body 30, the window frame 10 adsorbs the window sash 20, keeping the window closed. At this time, the elastic element 50 elastically presses against the window frame 10. In the event of a fire, the non-fire protection power supply will be automatically or manually shut off by the fire control system. The electromagnetic lock body 30 loses power, the silicon steel sheet loses its adsorption effect on the iron plate, and the window sash 20 detaches from the window frame 10. The elastic element 50 installed on the window sash 20 uses its stored energy to pop open the window sash 20. At the same time, in conjunction with the weight of the window sash 20, the purpose of quickly opening the window and naturally venting smoke is achieved. In this embodiment, a 220V AC to 24V DC switching power supply A is used to reduce the risk of electric shock and comply with fire safety standards. The window closes using the attraction effect of the energized electromagnetic lock body 30. After the electromagnetic lock body 30 is de-energized and demagnetized, the window sash 20 opens due to the action of the elastic element 50. The window sash 20 does not require external power equipment to open, avoiding failure due to external circuit malfunctions. Furthermore, in the event of a fire, the fire control system automatically shuts off non-fire-related power, instead of relying on fire signal receiving modules (such as smoke detectors, heat detectors, or fire control commands) to control the de-energization of the electromagnetic lock body 30. This avoids the inability to disconnect the power supply to the electromagnetic lock body 30 due to signal receiving module failures, ensuring high safety. This utility model's switching power supply is a device that converts one voltage of electrical energy into another voltage through rapid switching of a high-frequency switching transistor. Its core is the use of "switching action" to complete the energy conversion. Its significant advantages are small size, light weight, and high efficiency.

[0027] In one specific embodiment, the elastic element 50 is installed on the side of the window sash 20; the window frame 10 is provided with a mating block 60 that is opposite to the elastic element 50 when the window sash 20 is closed to the window frame 10; the mating block 60 is provided with a mating groove 601 for the elastic element 50 to be inserted; in the closed state, the mating block 60 is elastically pressed into the mating groove 601. Specifically, in this embodiment, the elastic element 50 includes a mounting base 501 connected to the window frame 10, a spring 502 installed on the mounting base 501, and a connecting cover 503 installed on the end of the spring 502 away from the mounting base 501.

[0028] In one specific embodiment, the electromagnet body is installed on the upper part of the window frame 10; the suction plate 40 is correspondingly installed on the upper part of the window sash 20.

[0029] In one specific embodiment, a limiting band 70 connects the window frame 10 and the window sash 20. In this embodiment, one end of the limiting band 70 is installed on the upper side of the window frame 10, and the other end is connected to the window sash 20. It is used to control the opening angle of the window sash 20 and to prevent the window sash 20 from being opened by excessive elastic force, which could shatter the glass, thus greatly satisfying the requirements for smoke exhaust area and glass safety. Furthermore, in the closed state, the excess limiting band 70 is located on the outer side of the window frame 10.

[0030] In one specific embodiment, the side of the window frame 10 is provided with a vertical sliding groove 101; one side of the vertical sliding groove 101 is provided with a connecting groove 102 that communicates with the vertical sliding groove 101; it also includes a sliding block 80 and a tightening screw 90; the sliding block 80 is slidably installed in the vertical sliding groove 101; one end of the tightening screw 90 is installed in the sliding block 80, and the other end extends out of the vertical sliding groove 101 through the connecting groove 102; one end of the limiting band 70 is located in the vertical sliding groove 101 and connected to the sliding block 80, and the other end extends out of the vertical sliding groove 101 and is connected to the window sash 20. Specifically, in this embodiment, under normal conditions, the tightening screw 90 is tightened onto the sliding block 80, and the end of the tightening screw 90 presses against the outside of the window frame 10, thereby restricting the position of the sliding block 80 within the vertical sliding groove 101. When it is necessary to adjust the position of the sliding block 80, the tightening screw 90 is unscrewed outward to release the position of the sliding block 80 within the vertical sliding groove 101, and then the position of the sliding block 80 is adjusted. Once the position is adjusted, it is tightened again. Through the above operations, the position of the sliding block 80 within the vertical sliding groove 101 can be effectively adjusted, thereby adjusting the length of the limiting band 70 that can extend out of the vertical sliding groove 101, thereby adjusting the opening angle of the window sash 20, and thus realizing the continuous adjustability of the opening angle of the window sash 20 to adapt to different building smoke exhaust needs.

[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatically opening smoke exhaust window, characterized in that: The device includes a window frame, a window sash rotatably mounted on the bottom of the window frame for opening or closing the window frame, an elastic element mounted on the window sash for elastically pressing against the window frame when the window sash is closed, an electromagnetic lock body mounted on the window frame, and a suction plate mounted on the window sash for cooperating with the electromagnetic lock body when the window sash is closed.

2. The automatic opening smoke exhaust window according to claim 1, characterized in that: The elastic element is installed on the side of the window sash; the window frame is provided with a mating block that is opposite to the elastic element when the window sash is closed to the window frame; the mating block is provided with a mating groove for the elastic element to be inserted; in the closed state, the mating block is elastically pressed into the mating groove.

3. The automatic opening smoke exhaust window according to claim 1, characterized in that: The electromagnetic lock body is installed on the upper part of the window frame; the suction plate is correspondingly installed on the upper part of the window sash.

4. The automatic opening smoke exhaust window according to claim 1, characterized in that: A limiting band connects the window frame and the window sash.

5. The automatically opening smoke exhaust window according to claim 4, characterized in that: The window frame has a vertical sliding groove on its side; a connecting groove is provided on one side of the vertical sliding groove; the frame also includes a sliding block and a tightening screw; the sliding block is slidably installed in the vertical sliding groove; one end of the tightening screw is installed in the sliding block, and the other end extends out of the vertical sliding groove through the connecting groove; one end of the limiting band is located in the vertical sliding groove and connected to the sliding block, and the other end extends out of the vertical sliding groove and is connected to the window sash.

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