4results about How to "From shock" patented technology

The utility model belongs to the field of energy and power engineering, and particularly relates to a circulating water energy efficiency conversion device which comprises an energy efficiency conversion pipeline body, a waterproof shell is fixedly installed on one side of the energy efficiency conversion pipeline body, a transmission hole is formed in one side of the energy efficiency conversion pipeline body, and a sealing rubber ring is fixedly installed on the inner side of the transmission hole. A transmission shaft is rotationally mounted on the inner side of the sealing rubber ring; the transmission shaft is fixedly sleeved with a hollow rotating disc, and six guide grooves are formed in one side of the hollow rotating disc. The positions of the blades can be adjusted by observing the flow of circulating water in a pipeline, when the flow of the circulating water fluctuates, the radial positions of the blades are adjusted to change the flow receiving area, it is ensured that the blades efficiently capture water flow energy, overload when the flow is too large or sudden reduction of efficiency when the flow is too small is avoided, and the output power of the device can be rapidly changed. Stable transition is achieved, and equipment is protected against impact.

The invention discloses a pressure online monitoring system and method for a reinforced concrete filling retaining wall of an underground stope, and belongs to the field of mine filling and geotechnical engineering safety monitoring. The invention provides an integrated pre-embedded monitoring system for solving the problems that in the prior art, the stress state of a retaining wall cannot be obtained in real time, a sensor is prone to being damaged and falling off, and monitoring data is unstable. The system comprises a pre-embedded assembly which comprises a pre-embedded fixing plate, a pre-embedded mounting base and a pre-embedded cable conduit and is pre-embedded in a reinforcing mesh before a retaining wall is poured; the pressure sensing unit is detachably fixed in the embedded mounting base and used for sensing the pressure borne by the retaining wall; the data acquisition and transmission module is connected with the pressure sensing unit through a pre-embedded cable conduit; and the data processing and stability judging module is used for calculating a safety coefficient on the basis of the received pressure data in combination with the retaining wall structure parameters. According to the invention, rigid coupling of the sensor and the reinforced concrete structure is realized, and stability of long-term monitoring and authenticity of data are ensured.

This disclosure relates to the technical field of concrete production equipment. One embodiment of this disclosure provides a stone feeding buffer device for concrete production, comprising: a shell, a feed inlet, and a separation outlet. The feed inlet is located at the top of the shell, the separation outlet is located on the inner surface of the shell, a drive motor is located on the side surface of the shell, a preliminary buffer assembly is located inside the shell, a discharge hood is located on one side of the bottom of the shell, and a secondary buffer assembly is located at the bottom of the shell. The preliminary buffer assembly includes a rotating roller rotatably connected inside the shell and connected to the output end of the drive motor. Several receiving racks are provided on the surface of the rotating roller. This technical solution solves the problem in the prior art where existing mixing plants add a buffer plate at the feed cylinder to reduce buffering force, but this arrangement easily leaves mixture residue on the buffer plate, affecting its use.

The invention relates to the technical field of new energy automobile air conditioners, in particular to a PTC heater driving module for a high-voltage-resistant new energy automobile air conditioner, which comprises a PTC heater driving module and a PTC heater, the PTC heater driving module comprises a CPU module, a driving signal module and a sampling circuit module, the driving signal module and the sampling circuit module are connected with the CPU module, and the PTC heater driving module is connected with the CPU module. The CPU module is electrically connected with the PTC heater, and the PTC heater driving module is composed of a high-voltage power supply module and a low-voltage power supply module. According to the PTC heater driving module for the high-voltage-resistant new energy automobile air conditioner, an upper arm chopping power tube and a lower arm fly-wheel diode are arranged, an L-shaped filter circuit is formed by combining an inductor assembly and a capacitor assembly, a PTC heater is isolated from high-voltage power supply, and the high-voltage power supply is processed into continuous adjustable direct current through controllable chopping and LC filtering to drive the PTC heater; and circuit safety is ensured.