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Automatic actuating mechanism for extinguishing and smoke exhausting valve

An actuator, fully automatic technology, applied in fire rescue and other directions, can solve the problems of easy deformation of the tie rod and the inability of the main shaft to rebound, and achieve the effect of overcoming easy deformation, short action time and compact structure

Inactive Publication Date: 2005-02-23
王兆君
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Compared with the prior art, the present invention has the advantages that: because the transmission mechanism all adopts the gear transmission mechanism, intermediate links such as pull rod transmission are canceled, and the main shaft is directly driven by the gear meshing sector gear to rotate, and it solves the problem when the whole gear transmission mechanism is in motion. The problem that the main shaft cannot rebound, so its structure is more compact, with fewer parts and smaller volume. Due to the direct transmission, the torque is large, the reset and action time is short and the performance is stable, and it overcomes the congenital defects of easy deformation and fracture of the tie rod, and eliminates unsafe

Method used

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  • Automatic actuating mechanism for extinguishing and smoke exhausting valve
  • Automatic actuating mechanism for extinguishing and smoke exhausting valve
  • Automatic actuating mechanism for extinguishing and smoke exhausting valve

Examples

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the embodiments of the accompanying drawings.

[0012] Flat square hole is arranged in the middle of cam 25, and the circular plate shape of arc-shaped gap is arranged on the edge.

[0013] The main shaft 24 is in the shape of a stepped pipe, on which the fixed cam 25 and the fixed pressure ring 23 are welded, and the lower end passes through the mounting plate 2 and the bottom plate 4. The sector gear 50 is welded and fixed on the seat cover 34, and fixed on the main shaft 24 with stop screws. On the lower end, a collar is buckled in the ring groove at the end of the main shaft, and the main shaft 24 is connected to the lower surface of the base plate 2 .

[0014] The fixed shaft 20 is fixed on the mounting plate with a nut through the screw thread at the end, the outer end of the coil spring 21 is hooked on the fixed shaft 20, and fixed on the mounting plate 2 through the fixed shaft, and the in...

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Abstract

A full-automatic executing mechanism for opening or closing the fire-proofing smoke exhaust valve is based on geardrive. It features that a drive mechanism is fixed to output axle, the output gear is matched with a output movable wheel in slide mode, the output gear is engaged with the gear train engaged with the gear on the motor shaft, and said output movable wheel is engaged with the sectoriral gear on mainshaft.

Description

technical field [0001] The invention relates to a device installed in the smoke exhaust and fire damper bodies of the ventilation systems of high-rise buildings, large ships, nuclear power plants, etc., and used for opening and closing the smoke exhaust and fire damper bodies. The fire and smoke exhaust valves are fully automatic mechanism. Background technique [0002] Patent No. 00246855.7 "Automatic Smoke Exhaust and Fire Damper Actuating Mechanism" also provides an actuator that can fully automatically operate the opening and closing of the smoke exhaust port, but it uses a pull rod type transmission mechanism, and the gear on the motor shaft passes through the gear set. It meshes with the gear on the controller shaft, and the shaft pull rod on the gear is connected with the rotating shaft on the main shaft, and then drives the main shaft to rotate. There are many parts in the middle link and the volume is large, and there are congenital defects and deficiencies. If the...

Claims

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Application Information

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IPC IPC(8): A62C99/00
Inventor 王兆君
Owner 王兆君
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