5results about How to "Compact and strong structure" patented technology

The utility model relates to a kind of ejection force reinforcing structure based on small elastic block, belongs to injection mould technical field, including injection mould, the injection mould is equipped with injection product, the injection product side lower end is equipped with ejection elastic block subassembly with injection mould interval.The ejection elastic block subassembly includes elastic block, the elastic block is equipped with the isohypse screw extending out the lower end of elastic block, the isohypse screw and the elastic block are equipped with the boss with isohypse screw hole type screw thread sleeve joint, the lower part of the elastic block and isohypse screw are equipped with the spring with isohypse screw sleeve joint.It has the characteristics of simple structure, good effect and high running stability.Through ejection elastic block subassembly, more powerful, more stable ejection force is provided in limited space, the powerful, stable, accurate ejection to difficult demoulding product is realized, while ensuring the accuracy of ejection action and the long life of mould.

The invention relates to a hybrid voltage limiter. According to the invention, the hybrid voltage limiter (1) comprises a first electrode (14), a second electrode (15), flip-flop electronics (10), a thyristor component and a varistor component, the varistor component comprising a varistor (9) and being connected in parallel with the thyristor component, where the thyristor component is electrically connected to the first electrode (14), the thyristor component forming two thyristors (5) connected antiparallel, the gate of an anti-parallel connected thyristor (5) is connected to the flip-flop electronics (10) in such a way as to be able to receive a trigger signal of the flip-flop electronics (10), where the flip-flop electronics (10) are electrically connected to a first electrode (14) and a second electrode (15), where the thyristor component is electrically connected to the second electrode (15) via a first resistivity. The thyristor component is electrically connected to the second electrode (15) by a bypass (6) having a second electrical resistivity, the first electrical resistivity having a higher resistance value than the second electrical resistivity, and the bypass (6) is connected to the second electrode (15) in a spark gap-avoiding manner, and the varistor component is electrically connected to the first electrode (14) and the second electrode (15).

The utility model discloses an air cooling fuel cell system integrated structure belongs to fuel cell technical field. The integrated structure is to set up fuel cell stack and its auxiliary components on the air deflector cover, and the side plate of air deflector cover and the cathode bottom plate, anode bottom plate of electric pile are connected to form the side surrounding casing structure of fuel cell stack, and the opposite side of fuel cell stack and fan is without side plate and opens to the environment, the fan in air management subassembly provides fresh air to the cooling and cathode flow channel on the polar plate in fuel cell stack, in hydrogen circulation subassembly, hydrogen passes control valve and enters hydrogen into the stack mouth on the cathode bottom plate, supplies to the anode manifold entrance of fuel cell stack through hydrogen flow channel in the cathode bottom plate, and the hydrogen that is not consumed is led out again by hydrogen out of the stack mouth on the cathode bottom plate and enters hydrogen circulation pipeline, and it is controlled by circulating pump to return to hydrogen into the stack mouth on the cathode bottom plate again. The utility model optimizes and reduces the overall size of fuel cell, guarantees the heat dissipation performance and improves the space utilization of fuel cell.

This utility model discloses a deck vertical lifting structure for a remote-controlled lawnmower, including a body, a deck suspension plate, an electric push rod, a transmission assembly, and a reset assembly. The body is a frame structure with fixed plates fixedly connected to the upper part of both sides of the rear. The electric push rod is fixedly connected to the front end of the fixed plates. The output end of the electric push rod is fixedly connected to the transmission assembly below via a U-shaped seat. The lower part of the transmission assembly is fixedly connected to the edge of the deck suspension plate. The middle part of the reset assembly is fixedly connected to the inner side of the body of the machine, and the bottom part is fixedly connected to the upper surface of the deck suspension plate. The electric push rod converts the horizontal driving force into a vertical force through the transmission assembly and transmits it to the deck suspension plate, realizing the lowering or raising of the deck suspension plate. The reset assembly enables the deck suspension plate to quickly reset when it needs to be raised after lowering. This application has the following advantages: improved mowing efficiency, improved mowing quality, enhanced terrain adaptability, reduced operating difficulty, and reduced structural space.

The utility model discloses an air cooling type electrolytic water hydrogen production alkali liquor cooler, which comprises a bottom rack and a top fixing frame, an alkali liquor cooling pipe is arranged between the bottom rack and the top fixing frame, the upper end of the alkali liquor cooling pipe is fixedly connected with the top fixing frame, the lower end of the alkali liquor cooling pipe is fixedly connected with the bottom rack, and the top fixing frame is fixedly connected with the bottom rack. A heat dissipation pipe is arranged on the alkali liquor cooling pipe, the heat dissipation pipe is detachably connected with the alkali liquor cooling pipe, the upper end of the heat dissipation pipe is fixedly connected with the top fixing frame, the lower end of the heat dissipation pipe is fixedly connected with the bottom rack, a heat dissipation fan is arranged on the top fixing frame, and the heat dissipation fan is fixedly connected with the top fixing frame. The structure is compact and firm, the sealing performance is excellent, safety and reliability are achieved, and equipment maintenance and repair are facilitated; and the polished stainless steel U-shaped elbow is adopted at the bottom, so that the use of connecting pieces between finned tubes is reduced, the reliability of equipment is further improved, the risk of leakage is reduced, the cost is reduced, and the occupied area is reduced.