3results about How to "Stable pressure output" patented technology

A valve sleeve plug, a spring seat plug, a valve element, a spring seat and a spring are mounted in a valve sleeve through hole of the pressure reducing valve, and a sealing ring is mounted on the valve sleeve plug at the left end of the valve sleeve through hole and used for sealing hydraulic oil at the left end of the valve element; the valve element is provided with an internal acting cavity and a lateral oil flowing channel, and oil ways can be communicated conveniently. A sealing ring is installed at the right end of the outer circle face of the valve element and used for guaranteeing that hydraulic oil cannot be discharged through the right end of the valve element in the valve element moving process, and the zero-leakage function of the pressure reducing valve is achieved. The right end of the valve element is connected with a spring seat, and a spring is arranged between the spring seat and a spring seat plug at the right end of the valve sleeve through hole. The plug-in mounting type zero-leakage constant-value pressure reducing valve has the functions of zero leakage and adjustable pressure reducing range, solves the problem that the outlet pressure of the pressure reducing valve is attenuated or unstable, and is simple in structural design and convenient to debug and mount.

The invention discloses a speed-adjustable liquid injection pump and a using method thereof, and relates to the field of fluid conveying equipment. The pump comprises an outer shell, a double-inner-shell assembly, a transmission assembly and a fluid channel. The double-inner-shell assembly is rotationally connected through a connecting bearing, the transmission assembly comprises a sun wheel assembly, a planet wheel assembly and a conduction belt, and the transmission ratio is changed by adjusting the position of a moving wheel, so that the double-inner-shell assembly rotates at the same speed or differential speed; the fluid channels correspond to the rolling rods on the outer side of the inner shell, and multi-channel pressure independent control is achieved by adjusting the rotating speed of the inner shell. The problems that an existing pump head fluctuates in pressure and is single in function are solved, stepless / multi-stage adjustment of liquid injection and negative pressure suction pressure can be achieved, and the pump head is suitable for fluid conveying scenes in the fields of medical treatment, chemical engineering and the like.

The utility model relates to robot positioning equipment technical field especially relates to inspection robot positioning device. Its technical scheme includes the connecting seat, the inner wall rotation of connecting seat is connected with the rotary joint, the outer wall both sides of rotary joint all are fixedly connected with the connecting frame, two connecting frames are fixedly connected with the bottom plate away from the one end of rotary joint, the top of bottom plate is provided with the extruding structure, the extruding structure includes the support column fixed in the both sides of bottom plate top, two support columns are fixedly connected with the top plate through the top rod in the top, the top of top plate is provided with the hydraulic pump, the output end of hydraulic pump is connected with the hydraulic rod of sliding. The utility model discloses inspection robot positioning device, it can be accurate to mark on equipment fault point, and maintenance personnel need not look around according to abstract coordinate, can directly position the fault through intuitive marking, greatly reduces the troubleshooting time, and ensures that the marking process is stable and reliable.