Actuator of fireproof smoke exhaust valve

Abstract

The invention discloses an actuator of a fireproof smoke exhaust valve. The actuator of the fireproof smoke exhaust valve comprises a inhaul cable (4), a traction device for dragging or loosing the inhaul cable (4) and a reset device for enabling cross sections of channels of a valve block (2) of the fireproof smoke exhaust valve and a valve body (1) of the fireproof smoke exhaust valve to be parallel, the traction device is fixed on the wall of the channel of the valve body (1), one end of the inhaul cable (4) is connected with the traction device, the other end of the inhaul cable (4) and the valve block (2) are fixed, and the reset device is installed in the valve body (1). The actuator of the fireproof smoke exhaust valve is strong in generality, wide in application range and simple and convenient to install.

Description

technical field [0001] The invention relates to the field of safety engineering, in particular to an actuator for a fire-proof and smoke-exhaust valve. Background technique [0002] At present, high-rise buildings are all equipped with ventilation ducts, and the ventilation ducts are provided with fire-proof and smoke exhaust valves. The fire and smoke exhaust valve consists of a valve body and an actuator fixed outside the valve body (generally above the valve body). There is a valve plate in the channel of the valve body, and a main shaft is fixed on the valve plate. The main shaft extends out of the valve body and is connected with the actuator . The actuator drives the valve piece to rotate by rotating the main shaft, and then realizes the opening and closing of the entire valve body. When the cross section of the channel in the body is vertical, the opening of the whole valve body is the largest. [0003] Because the actuators of the fire and smoke exhaust valves in ...

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Problems solved by technology

[0003] Because the actuators of the fire and smoke exhaust valves in the prior art are all installed on the body of the fire and smoke exhaust valve, the versatility of the fire and smoke exhaust valve is poor, and the scope of application is narrow, so it is only suitable for installation in the reserved space for accommodating the actuator In the ventilation ducts, and many ventilation ducts without reserved space cannot be installed directly. It is necessary to break the wall of the ventilation duct to dig out the space for the actuator, and then install the actuator and the valve body. Therefore, the installation The process is quite cumbersome, not to mention that after the construction of some ventilation pipes, it is impossible to further dig out the space to accommodate the actuator, and it is impossible to install it at all. Moreover, even if there is space reserved, the actuator will be installed in the reserved space and the valve body will be installed in the pipe. The process is also very troublesome

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