51results about How to "Achieve windproof effect" patented technology

The invention provides a windproof sound insulating plate. The windproof sound insulating plate comprises a front plate body and a rear plate body, wherein the front plate body and the rear plate bodyare arranged side by side. Multiple front sound holes are formed in the front plate body, the front sound holes penetrate through the front face of the front plate body, each front sound hole communicates with a front containing cavity, and the front containing cavity penetrates through the back face of the front plate body. Multiple rear sound holes corresponding to the front sound holes one toone are formed in the rear plate body, the rear sound holes penetrate through the back face of the rear plate body, each rear sound hole communicates with a rear containing cavity, and the rear containing cavity penetrates through the front face of the rear plate body. The front containing cavity and the rear containing cavity correspondingly communicate to form a cavity, sound absorption cotton particles are arranged in the cavity, and the volume of the sound absorption cotton particles is smaller than the capacity of the cavity. The windproof sound insulating plate achieves sound insulatingand micro-ventilating effects at ordinary times and achieves the windproof effect when wind springs up.

The invention relates to the technical field gantry cranes, in particular to a method and special device for wind resistance of a gantry crane. The special device comprises a portal frame, a bottom plate, a rolling wheel, a limited track, a support plate, a position regulation mechanism and a locating mechanism, wherein the bottom of the portal frame is connected with the rolling wheel through thebottom plate, the bottom of the rolling wheel is movably connected to the top of the limited track, and the bottom of the limited track is welded to the top of the support plate; the position regulation mechanism is arranged on the support plate, and the locating mechanism is arranged on the position regulation mechanism; the position regulation mechanism comprises a double-shaft motor, a first threaded rod, a second threaded rod, a threaded sleeve, a slide block, a sliding chute, a connecting plate and a fixed plate; and the locating mechanism comprises a hydraulic cylinder, an extruding plate and an extruding block. According to the special device disclosed by the invention, the locating mechanism is moved to the upper side of the bottom plate by adopting the position regulation mechanism, and the bottom plate is extruded and located through the locating mechanism, so that the stability of the portal frame is improved, the wind-resistant effect is achieved, safety accidents are prevented from occurring, and the economic loss is prevented from being caused.

The invention relates to a wind-proof device capable of preventing flame from being blown out by wind in the use of an ignition needle. The wind-proof device is arranged at an ignition head of the ignition needle. The arranged wind-proof device considers an actual practical effect. The wind-proof device structurally adopts a flat plate structure and is formed by overturning at the upper part and on two sides of the wind-proof device. When the wind-proof device is in use, an opening surface of the wind-proof device is opposite to the wind direction, so that a flat plate can block the wind blown from the front surface, flanges on the two sides can block the wind blown from the two sides, and a flange at the upper part can block the wind blown from the upper surface; and as the bottom part of the wind-proof device is in contact with other parts of a baking oven, the influence of the wind on the bottom part of the wind-proof device can be basically ignored. Therefore, the wind-proof device can better realize the wind-proof effect.

The invention discloses an access door. The access door comprises a passageway. A rotating shaft, a first door leaf and a second door leaf are arranged on the passageway, and the first door leaf or the second door leaf rotates along with the rotating shaft and can horizontally move on the rotating shaft. When the first door leaf blocks the passageway, the first door leaf rotates along with the rotating shaft but does not horizontally move, and the second door leaf rotates along with the rotating shaft and can horizontally move. When the second door leaf blocks the passageway, the second door leaf rotates along with the rotating shaft but does not move horizontally, and the first door leaf rotates along with the rotating shaft and can move horizontally. The passageway is always blocked by the first door leaf or the second door leaf. The access door can always keep the passageway blocked during one-way or two-way passing, the number of door leaves is small, the needed passageway width issmall, the effective passageway proportion is high, the structure is simple and practical, and the windproof effect can be easily achieved.