Comprehensive smoke exhaust port with fire damper opening and closing function

Abstract

The utility model relates to a comprehensive smoke outlet with a fireproof valve opening and closing function, which comprises a fireproof valve box body, a cover plate is rotatably connected in the fireproof valve box body, a control assembly is arranged on the upper side of the fireproof valve box body, a limiting plate is connected to the left side of the fireproof valve box body, and a sliding frame is slidably connected between the limiting plate and the upper side of the fireproof valve box body. The left portion of the sliding frame is connected with a rotating rod, the upper portion of the rotating rod is connected with a universal joint assembly, the control assembly is connected with a one-way rotating seat, an adjusting assembly is connected between the one-way rotating seat and the universal joint assembly and comprises a worm and a worm gear, the right portion of the universal joint assembly is connected with the worm, and the upper portion of the one-way rotating seat is connected with the worm gear. And the worm gear is meshed with the worm. Manual rotating torque is amplified through the adjusting assembly, more labor is saved when an operator opens the cover plate in cooperation with the multi-direction adjusting capacity of the universal joint assembly, the cover plate can be prevented from being accidentally closed through the worm gear and the worm, it is guaranteed that the smoke outlet is in an open state, and the ventilation efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fire safety equipment technology, and in particular to a comprehensive smoke exhaust outlet with fire damper opening and closing function. Background Technology

[0002] A fire damper is a fire-fighting device used in ventilation, air conditioning systems, or building ducts. It can automatically block the spread of flames and smoke during a fire, ensuring the evacuation of personnel and delaying the spread of fire. Under normal conditions, the fire damper is in the open position, maintaining ventilation of the integrated smoke exhaust outlet. When the temperature of the smoke exceeds 280°C during a fire, the fusible alloy plate or heat-sensitive glass ball inside the fire damper will break, triggering the valve to close. After the fire ends, the fire damper needs to be manually opened to restore ventilation to the fire damper box. Traditional fire dampers use a manual wrench to return the valve plate to the open position. The manual operation requires a large torque, is difficult for personnel to apply force, is time-consuming and labor-intensive, and affects the opening and closing speed of the fire damper.

[0003] To address the above issues, a comprehensive smoke exhaust outlet with fire damper opening and closing function has been developed. Utility Model Content

[0004] To overcome the shortcomings of traditional fire dampers that require a manual wrench to return the valve plate to the open state, which involves large manual operating torque, difficulty in applying force, time and effort, and affects the opening and closing speed of the fire damper, this utility model provides an integrated smoke exhaust outlet with fire damper opening and closing function.

[0005] The technical solution of this utility model is as follows: a comprehensive smoke exhaust outlet with fire damper opening and closing function, including a fire damper housing, a cover plate rotatably connected inside the fire damper housing, a control component provided on the upper side of the fire damper housing, the control component being able to control the opening and closing of the cover plate, a limit plate connected to the left side of the fire damper housing, a sliding frame slidably connected between the limit plate and the upper side of the fire damper housing, a rotating rod connected to the left side of the sliding frame, a universal joint assembly connected to the upper part of the rotating rod, a one-way rotating seat connected to the control component, an adjusting component connected between the one-way rotating seat and the universal joint assembly, the adjusting component including a worm and a worm wheel, the worm connected to the right side of the universal joint assembly, the worm wheel connected to the upper part of the one-way rotating seat, and the worm wheel and the worm meshing.

[0006] As a further preferred embodiment, a pin is also included, which is slidably connected to the limiting plate and acts as a locking device for the sliding frame.

[0007] As a further preferred embodiment, the fire damper housing also includes a cover frame, which is connected to the upper rear side of the fire damper housing to protect the adjusting assembly.

[0008] As a further preferred embodiment, the sliding frame is provided with a handle.

[0009] As a further preferred embodiment, the sliding frame serves to fix the rotating rod, making it more stable for the operator to control the rotating rod.

[0010] As a further preferred embodiment, the lower part of the rotating rod can be externally connected to an auxiliary rotating component.

[0011] By adopting the above technical solutions, this utility model has the following advantages:

[0012] This invention amplifies the manual rotation torque through the adjustment component, and with the multi-directional adjustment capability of the universal joint component, it makes it easier for operators to open the cover. The self-locking property of the worm gear and worm prevents the cover from closing accidentally, ensuring that the smoke exhaust port is in the open state under normal conditions, thus guaranteeing ventilation efficiency. The sliding bracket and the pin work together to enable the adjustment component to disengage quickly, disengaging the worm and worm gear, and allowing the cover to be opened manually directly through the control component, solving the problem of being unable to operate in an emergency after the fire damper transmission fails. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0015] Figure 3 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0016] Figure 4 This is a three-dimensional structural diagram of the rotating rod of this utility model.

[0017] The components are: 1-fire damper housing, 2-cover plate, 3-control assembly, 4-sliding frame, 5-limiting plate, 6-rotating rod, 7-universal joint assembly, 8-adjusting assembly, 9-one-way rotating seat, 10-pin, 11-cover frame. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installing," "connecting," and "linking" 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 the present invention based on the specific circumstances.

[0019] A combined smoke exhaust outlet with fire damper opening and closing function, such as Figures 1-4 As shown, the device includes a fire damper housing 1, with a cover plate 2 rotatably connected inside the fire damper housing 1. A control component 3 is installed on the upper side of the fire damper housing 1, which controls the opening and closing of the cover plate 2. A limit plate 5 is connected to the left side of the fire damper housing 1, and a sliding frame 4 is slidably connected between the limit plate 5 and the upper side of the fire damper housing 1. The sliding frame 4 has a handle, and a rotating rod 6 is connected to the left side of the sliding frame 4. The sliding frame 4 fixes the rotating rod 6, making it more stable for the operator to control the rotating rod 6. An auxiliary device can be externally connected to the lower part of the rotating rod 6. The rotating component 6 has a universal joint assembly 7 connected to its upper part, and a one-way rotating seat 9 connected to the control component 3. An adjustment component 8 is connected between the one-way rotating seat 9 and the universal joint assembly 7. The adjustment component 8 includes a worm and a worm wheel. The worm is connected to the right side of the universal joint assembly 7, and the worm wheel is connected to the upper part of the one-way rotating seat 9. The worm wheel and the worm mesh with each other. A pin 10 is slidably connected to the limit plate 5. The pin 10 locks the sliding frame 4. A cover frame 11 is connected to the upper rear part of the fire damper box 1 to protect the adjustment component 8.

[0020] It should be noted that a fire damper is a fire-fighting device used in ventilation, air conditioning systems, or building ducts. It automatically blocks the spread of flames and smoke during a fire, ensuring evacuation and delaying the spread of fire. Under normal conditions, the fire damper is open, maintaining ventilation at the integrated smoke exhaust vent. When the smoke temperature exceeds 280℃ during a fire, the fusible alloy sheet or heat-sensitive glass bulb inside the fire damper ruptures, triggering the valve to close. After the fire ends, the fire damper needs to be manually reopened to restore ventilation to the fire damper housing 1. An auxiliary rotating component can be connected to the lower part of the rotating rod 6. Rotating this auxiliary rotating component drives the universal joint assembly 7, which in turn drives the worm gear. This causes the worm gear to drive the one-way rotating seat 9 to rotate counterclockwise, thereby driving the cover plate 2 to rotate and opening the fire damper. This transmission method makes it easier to manually open the fire damper and saves operation time. When the rotating rod 6, universal joint assembly 7 and adjusting assembly 8 malfunction and need maintenance, the pin 10 can be pulled out to disengage the sliding frame 4 and the limit plate 5. Then, the sliding frame 4 can be slid backward using the handle, which will drive the rotating rod 6, universal joint assembly 7 and worm gear to move backward. The worm gear and worm wheel will disengage. At this time, the operator can adjust the cover plate 2 to the open state by rotating the control assembly 3, providing an alternative solution for opening the fire damper.

[0021] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of this invention. Therefore, the scope of this invention should be limited only by the appended claims.

Claims

1. A comprehensive smoke exhaust outlet with fire damper opening and closing function, characterized in that: The device includes a fire damper housing (1), inside which a cover plate (2) is rotatably connected. A control component (3) is provided on the upper side of the fire damper housing (1), which can control the opening and closing of the cover plate (2). A limit plate (5) is connected to the left side of the fire damper housing (1), and a sliding frame (4) is slidably connected between the limit plate (5) and the upper side of the fire damper housing (1). A rotating part is connected to the left side of the sliding frame (4). A rotating rod (6) is connected to a universal joint assembly (7) at its upper part. A one-way rotating seat (9) is connected to the control assembly (3). An adjustment assembly (8) is connected between the one-way rotating seat (9) and the universal joint assembly (7). The adjustment assembly (8) includes a worm and a worm wheel. The worm is connected to the right side of the universal joint assembly (7). The worm wheel is connected to the upper part of the one-way rotating seat (9). The worm wheel and the worm mesh with each other.

2. The integrated smoke vent with fire damper opening and closing function according to claim 1, characterized in that: It also includes a pin (10), which is slidably connected to the limiting plate (5), and the pin (10) locks the sliding frame (4).

3. The integrated smoke vent with fire damper opening and closing function according to claim 1, characterized in that: It also includes a cover frame (11), which is connected to the upper rear side of the fire damper box (1) to protect the adjustment assembly (8).

4. The integrated smoke vent with fire damper opening and closing function according to claim 1, characterized in that: The sliding frame (4) is equipped with a handle.

5. The integrated smoke vent with fire damper opening and closing function according to claim 1, characterized in that: The sliding frame (4) serves to fix the rotating rod (6), making it easier for the operator to control the rotating rod (6) more stably.

6. The integrated smoke vent with fire damper opening and closing function according to claim 1, characterized in that: The lower part of the rotating rod (6) can be connected to an auxiliary rotating component.

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