4results about How to "Meet ventilation requirements" patented technology

The invention provides a pull rod device for an inward tilt-turn window and the inward tilt-turn window. The pull rod device comprises a window frame connecting assembly, a sash fixing rod, a long rod and a sliding block assembly. The sash fixing rod is provided with a sliding groove, the sliding block assembly is assembled in the sliding groove in a sliding mode, and the two ends of the long rod are hinged to the window frame connecting assembly and the sliding block assembly respectively. A plurality of bayonets are formed in the side wall of the sliding groove, and the sliding block assembly comprises a sliding block, a swing rod and a reed; an assembling groove is formed in the upper surface of the sliding block, a clamping protrusion is arranged on the swing rod, and the swing rod is arranged in the assembling groove in the mode that the clamping protrusion faces outwards. The reed is arranged between the sliding block and the swing rod, in the reverse sliding process of the sliding block assembly in the sliding groove, the reed pushes the swing rod to enable the clamping protrusion to be embedded into the bayonet, and the swing rod prevents the sliding block assembly from sliding in the sliding groove in the forward direction. The inward tilt-turn window can be positioned at a plurality of different inward tilt-turn distances, and different ventilation requirements are met.

The utility model discloses a kind of aluminium alloy sliding folding casement windows, it is related to sliding folding casement window technical field, including frame, the side of the top of frame one end is provided with movable hole, the side of the movable hole inside is movably connected with second movable window, the side of second movable window is provided with first movable window, the side of frame one end and located above and below second movable window is provided with clamping groove, the side of the clamping groove away from first movable window is provided with L type card frame, the side of L type card frame away from clamping groove is rotatably connected with telescopic clamping piece, telescopic clamping piece includes sleeve, pressing rod. The utility model can open first movable window alone when using ordinary ventilation, satisfy ordinary ventilation requirement, when needing to maintain, or clean window, second movable window can be opened, make the exposed space of movable hole position enough big, satisfy the requirement of operation, make it unable to adjust the range of unfolding freely according to actual situation.

The utility model relates to a ventilation side plate for high-protection-grade power distribution equipment, and belongs to the technical field of electrical equipment. The side plate structurally comprises a side plate body fixed on the periphery of the power distribution equipment, ventilation windows are uniformly distributed on the surface of the side plate body, protective cover plates matched with the ventilation windows are fixed on the surfaces, facing the inside of a cabinet, of the ventilation windows, and dustproof net plates and filter sponges are further fixed between the ventilation windows and the protective cover plates. The ventilation device is simple in structure and convenient to use, and has the advantages that the ventilation requirement and the high protection level are met at the same time, and the application scene of electrical equipment is expanded.

The application discloses a kind of roadway ventilation regulating device, it is related to roadway ventilation technical field, mainly include: oxygen production unit, oxygen can be prepared;Fan unit, air inlet is connected with oxygen production unit, fan unit can mix air with the oxygen provided by oxygen production unit, to provide oxygen-containing wind;Heating unit, set in the air outlet of fan unit, for heating oxygen-containing wind;Ventilation pipe, with heating unit is connected, for after heating oxygen-containing wind is delivered to roadway;Adjusting unit, including controller and sensor component, controller is signal connected with sensor component, oxygen production unit, fan unit and heating unit, sensor component is used to monitor the environmental parameter of roadway, controller can control oxygen production unit, fan unit and heating unit work according to the environmental parameter monitored by sensor component.The application can integrate heating, oxygen production, ventilation function, to adapt to plateau mine, and improve the efficiency and safety of mine roadway ventilation.