4results about How to "Stop shock" patented technology

The invention provides an underwater fixed-point blasting protection device which comprises a plurality of main buoys and a hard lower mounting ring, and each main buoy is connected with the lower mounting ring through a main pull rope; the device further comprises a plurality of baffles, the baffles are circumferentially arranged and installed on the lower installation ring, counter weights are arranged at the bottoms of the baffles, each baffle can be hung at the bottom of the lower installation ring in a rotating mode, holes are formed in the baffles, a bag net is arranged at the rear ends of the holes, and the bag nets are unfolded towards the outer side of the lower installation ring. When blasting is carried out, impact force enables the baffles to be opened outwards, certain blasting impact can be prevented due to the fact that the baffles are opened outwards and still have certain resistance, a previous blasting object can be blocked through the bag net, some impact can be released after the bag net is opened, and damage to the protection device is avoided. After the baffle is retracted, pollutants in water after blasting can be blocked and prevented from diffusing outwards to pollute the water environment.

The utility model discloses a high-voltage high-frequency hollow inductor in the technical field of hollow inductor design, which comprises an epoxy framework, winding grooves are arranged on the outer wall of the epoxy framework at equal intervals, the top of the epoxy framework is connected with a first copper bar, and the bottom of the epoxy framework is connected with a second copper bar. Screws are in threaded connection between the first copper bar and the epoxy framework and between the second copper bar and the epoxy framework, first connecting blocks are connected to the two sides of the first copper bar, second connecting blocks are connected to the two sides of the second copper bar, and an electric connector is in threaded connection with an inner cavity of the first connecting block at the right end. Through cooperative arrangement of the first connecting block, the second connecting block, the first screw hole, the electrical interface, the insulating rotating head and the electrical connector, two air core inductors can be conveniently connected in series, the air core inductors are connected into an electric field in series, installation is easy, operation is convenient, huge energy generated during flashover in the electric field can be effectively absorbed, and the service life of the air core inductors is prolonged. Impact on a high-frequency power supply is prevented, and stable operation of equipment is ensured.

The utility model discloses a kind of parallel recovery devices of proton exchange membrane fuel cell engine hydrogen system, comprising: outer shell, the outer shell top is equipped with opening and detachable protective cover, the inside of the outer shell is equipped with first installation box and second installation box arranged side by side, the utility model uses parallel dryer group to process electric pile tail gas, significantly improves drying efficiency and system stability. Two dryers work synchronously, double the water absorption capacity, cope with high-humidity large-flow condition;More provide operation redundancy, when single dryer saturation, another can still maintain operation, guarantee reliability. The middle section of the curved pipe connecting two dryers is embedded with a ball tube buffer cavity, when system pressure fluctuation may cause siphon, gas in the cavity forms a physical barrier, effectively prevents gas reflux impact on the stack, protects the safety of core components.

This utility model relates to the field of mechanical seal technology, specifically a mechanical seal device with anti-shaft movement, interference resistance, and self-regulating temperature control. It includes a heat exchange inner sleeve, a shaft sleeve, rotating ring A, rotating ring B, two stationary rings, a sealing gland, a spring, a spring seat, a push ring, a transmission key, a standard transmission pin A, a clamping mechanism, and an O-ring assembly. The clamping mechanism consists of clamping disc A, a clamping ring, and clamping disc B. The distance between the two sealing rings remains constant, and the thrust on the end face of the sealing friction ring remains constant. Unaffected by pump shaft movement, the front moving and stationary rings do not require sealing, serving to block liquid flow impact and fluctuations. This ensures the safe and stable operation of the sealing rings, guaranteeing satisfactory performance and ideal service life of the mechanical seal during deep peak-shaving operation of the unit.