6results about How to "Inaccessible" patented technology

This invention discloses a biomass pellet burner, comprising: a hopper including an inlet and an outlet; a screw feeder including a screw feed pipe, a screw feed rotating component disposed within the screw feed pipe, and a screw feed drive component connected to the screw feed rotating component, the outlet being disposed at a first end of the screw feed pipe; a combustion chamber disposed at a second end of the screw feed pipe; an air supply device including an air supply chamber and an air supply drive component connected to the air supply chamber, the air supply chamber including an air distribution chamber and a combustion chamber air chamber, the air distribution chamber communicating with the screw feed pipe, and the combustion chamber air chamber communicating with the combustion chamber; and an ignition device, a sealing plate disposed between the air distribution chamber and the combustion chamber, the inlet end of the ignition device being located within the air distribution chamber, and the outlet end of the ignition device being located within the combustion chamber. This invention avoids backflow and backfire by balancing the pressure of the screw feed pipe and the combustion chamber.

An annular plate is coaxially arranged on one side of the bottom plate, a plurality of internal thread seats are evenly arranged at the end, away from the bottom plate, of the annular plate, the L-shaped ring is attached to the side, provided with the internal thread seats, of the bottom plate, and an annular pressing plate is connected with the internal thread seats in a fastened mode through bolts. An annular heat insulation plate is arranged at the outer end of an annular pressing plate through a first annular groove, meanwhile, an annular sealing limiting plate is limited and pressed through the first annular groove, the annular sealing limiting plate achieves installation of an annular rubber sealing plate through a second annular groove, and an L-shaped ring is pressed through the annular rubber sealing plate; meanwhile, a second inner side limiting ring of the annular sealing limiting plate is directly pressed on the surface of the bottom plate, it is guaranteed that internal air cannot enter the position between the L-shaped ring and the bottom plate, the sealing performance of the L-shaped ring and the bottom plate is further improved, the situation of air leakage cannot occur after long-term use, the L-shaped ring does not need to be perforated, and therefore the sealing performance of the L-shaped ring is improved. The processing difficulty is reduced.

The utility model relates to acoustics technical field discloses a kind of loudspeaker combination structure of ball-shaped sound box, including shell, the inside fixed connection of shell has mid-high pitch loudspeaker, the inside fixed connection of shell has pure bass loudspeaker, the inner wall fixed connection of shell at pure bass loudspeaker downside has sound guide cone, the inner wall of shell at sound guide cone outside is equipped with sound hole, the outer surface of shell is fixedly installed with passive radiator, the inner wall sound outlet groove of shell, the inner wall of sound outlet groove is penetrated by the outer wall of mid-high pitch loudspeaker, the outside of shell is provided with dustproof mechanism.In the utility model, through the position setting of mid-high pitch loudspeaker, and the position of pure bass loudspeaker, the setting of sound guide cone, ensure that middle, high, low sound can be respectively transmitted from different loudspeaker, and through its position and shape setting, can ensure that sound quality is better, and can 360 degree diverge, reach the effect of keeping sound quality under the premise of keeping beautiful.

The present application belongs to elevator technical field, more specifically, it is related to a kind of elevator and its door knife device. Wherein, door knife device includes anti-pinch component, and anti-pinch component includes detection sensor and trigger piece, at least one of detection sensor and trigger piece is linked with door knife mechanism, when the resistance that door knife mechanism holds layer door ball moves exceeds preset value, trigger piece triggers detection sensor. When the gap between car door and layer door, the gap between layer door and door sleeve is stuck into foreign matter, detection sensor is triggered, and elevator opening action stops, so, to the anti-pinch component of door knife device integrated setting, it can avoid the influence of elevator normal opening due to foreign matter being stuck into gap, avoid to cause damage to the object being stuck, provide reliable guarantee for the safe operation of elevator;And, the triggering of detection sensor is realized by linkage with door knife mechanism, without adding other driving structure, and the overall structure of door knife device is simple, maintenance is convenient, with higher use value.

This invention discloses a printed circuit structure comprising a printed circuit layer and a printed conductive adhesive layer. The printed circuit layer includes a first printed circuit layer and a second printed circuit layer. One of the first basic circuit wiring segments of the first printed circuit layer and the first basic circuit wiring segment of the first printed conductive adhesive layer extends along a first direction, and the other extends along a second direction perpendicular to the first direction. The difference in length between the two in the first direction allows the first printed circuit layer and the first printed conductive adhesive layer to maintain electrical connection even when there is an error in the first direction. Similarly, the second basic circuit wiring segments of the second printed circuit layer and the second basic circuit wiring segment of the second printed conductive adhesive layer also maintain electrical connection even when there is an error in the first direction. This invention, through structural improvements, prevents the conductive adhesive layer from failing to adhere to the printed circuit layer due to errors.

This invention discloses a manhole cover with an odor-proof structure, relating to the field of odor control. It includes a manhole cover body and a hanger. The hanger has a cleaning component at its bottom, and an installation hole is formed on the inner wall of its bottom. An installation frame is fixedly connected inside the installation hole. This invention discloses a manhole cover with an odor-proof structure that, when a biological filter is purifying waste gas from the sewer, periodically activates a water pump. The pump directs rainwater collected in a collection tank into a hollow spray plate, which then flushes the air inlet of the biological filter through the spray holes. During flushing, a drive motor is activated, which drives the bristles on a rotating rod to brush the area below the air inlet, thereby cleaning the air inlet of the biological filter and preventing impurities from clogging it, thus ensuring the odor-proof effect of the manhole cover body.