4results about How to "Reduce stagnation" patented technology

The utility model aims at providing a nerve block needle which reduces puncture needle block and facilitates control of drug entry. The utility model discloses a needle handle, a puncture needle fixedly connected with one end of the needle handle for puncture, a flow control assembly detachably connected with the other end of the needle handle for controlling drug flow, a protective sleeve detachably connected with the lower end of the needle handle, and a flow tube arranged at one end of the flow control assembly for flowing in drug. The flow control assembly comprises a connecting block detachably connected with the needle handle, a control piece slidably connected with the connecting block for controlling drug flow, and a plurality of elastic members arranged at one end of the connecting block and in top pushing cooperation with the control piece. The connecting block is formed with the flow tube for drug flow. One side of the connecting block is formed with a slot for slidable connection of the control piece. The plurality of elastic members are arranged at the bottom of the slot. The control piece is provided with a flow hole for drug to pass through. The utility model is applied to the technical field of nerve block needles.

The utility model relates to galvanization composite material technical field, and disclose a kind of galvanization composite material spiral pultrusion forming device, including base, the base top left and right symmetrical fixedly connected with support seat, two the support seat top is provided with spiral pultrusion mechanism, the spiral pultrusion mechanism includes fixed base, the fixed base is fixedly connected in two support seat top, and the fixed base is in and is provided with feed channel. In spiral pultrusion mechanism, first screw rod and second screw rod are symmetrically distributed in front and back, and are driven by first motor, first gear and second gear are mutually engaged to realize synchronous reverse rotation. This design makes that material can be efficiently pushed, extruded in feed channel, not only guarantee the continuity of material conveying, but also can be preliminary compacted and formed in the pushing process to galvanization composite material, compared with traditional conveying mode, greatly improve processing efficiency, reduce the stagnation and accumulation problem of material in conveying process.

The present disclosure provides a suspension type rescue device, a crown block running system and a crown block rescue method, and relates to the technical field of crown block design. The rescue device comprises a suspension type rescue vehicle and a control unit. The suspension type rescue vehicle comprises a running part and a joint part. The running part can move along the crown block track. The first end of the joint part is connected with the running part, and the second end of the joint part can be detachably connected with the crown block. The running part and the joint part are both connected with the control unit. The control unit can control the running part to move along the crown block track, and the control unit can control the joint part to be connected with the crown block. The suspension type rescue vehicle of the present disclosure can quickly and effectively tow away the crown block that appears to be malfunctioning on the crown block track, thereby reducing the risk of congestion of the conveying system.

The application discloses a juicing screw, which comprises a pressing part, a plurality of spiral ribs are arranged on the outer circumferential surface of the pressing part, a spindle-shaped boost rib is arranged between two adjacent spiral ribs, the two ends of the boost rib are arc-shaped and the width of the boost rib is smaller than the width of the middle part, and the boost rib is symmetrically arranged between the two adjacent spiral ribs in the direction of the interval width of the spiral ribs. According to the application, the outer circumferential surface of the juicing screw is provided with a plurality of spiral ribs, a spindle-shaped boost rib is arranged between two adjacent spiral ribs, the boost rib applies an additional radial force to the material through the gradually changed curved surface profile, the material is forced to move forward, the backflow or stagnation is reduced, the juicing efficiency is improved, the large material is divided through the shunting effect, the large material is guided to enter the extrusion area uniformly, and the risk of material blockage is reduced.