5results about How to "Easy to handle manually" patented technology

The application discloses a kind of shallow silo local heating treatment method, adopt outer tube, intermediate tube and inner tube to the grain of local heating are extracted cooling;Outer tube is by the first outer tube of several sections sequentially connected composition;Intermediate tube is by the second intermediate tube of several sections sequentially connected composition;Inner tube is by the third inner tube of several sections sequentially connected composition;The length of intermediate tube is greater than the length of outer tube;The length of inner tube is greater than the length of intermediate tube;The method includes the following steps: from the top grain surface of shallow silo downwards sequentially placed into several first outer tubes, and forms outer tube, using negative pressure extraction outer tube in the grain and the air of the region grain gap;From outer tube sequentially placed into several second intermediate tubes, and forms intermediate tube, using negative pressure extraction intermediate tube in the grain and the air of the region grain gap;From intermediate tube sequentially placed into several third inner tubes, and forms inner tube;Until the bottom of inner tube reaches local heating, extract local heating grain and the air of the region grain gap.

The utility model provides a kind of drilling positioning device for rotary digging bored pile, it is related to bored pile technical field, including pedestal, the surface center position of the pedestal is provided with convenient dismounting component, the convenient dismounting component includes auxiliary pipe, the inner wall annular distribution of the auxiliary pipe has rolling column.The utility model in need when replacing auxiliary pipe, two groups of handles can be pulled to two sides simultaneously, so that insert block can be removed from the surface of sliding block, then old auxiliary pipe is removed, and new auxiliary pipe is pushed into the surface of pedestal, and it can be automatically fixed by the pushing of spring, the convenience when auxiliary pipe is disassembled is improved, annular rolling column can roll along with the movement of drill rod, sliding friction between drill rod and auxiliary pipe inner wall is changed into rolling friction, greatly reduce friction.This not only reduces the wear degree of drill rod and auxiliary pipe, but also prolongs the service life of auxiliary pipe.

This utility model discloses a grid structure for dredging and maintenance of an inverted siphon culvert. It includes a vertical shaft with a horizontal grid at the shaft opening. A debris-blocking opening is formed on the side wall of the shaft, and a debris-blocking grid is vertically installed inside the debris-blocking opening. The horizontal grid is composed of multiple sub-grid components to cover the shaft opening. A support beam is provided inside the shaft opening to support the sub-grid components. The length direction of the support beam is parallel to the length direction of the debris-blocking opening. The multiple sub-grid components are divided into a first sub-grid and a second sub-grid. The opposite ends of the first sub-grid are respectively installed on support steps opposite each other at the shaft opening. One end of the second sub-grid is installed on a support step on one side of the shaft opening, and its opposite end extends above the debris-blocking opening and is supported by the debris-blocking grid. This utility model can disassemble the horizontal grid into multiple sub-grids to reduce the weight of a single piece, and can also provide a central support beam to reduce the rigidity requirements of the sub-grids, thereby reducing thickness and weight, and facilitating manual handling.

This utility model discloses a skid-mounted handheld inspection fixture device, comprising: a structural frame, a positioning mechanism, and a detection mechanism; the structural frame is used to mount the positioning mechanism and the detection mechanism; the positioning mechanism is disposed on the structural frame and used for positioning between the structural frame and the skid; the detection mechanism is disposed on the structural frame and used for calibrating the fulcrum on the skid. When not in use, the structural frame can be disassembled, significantly reducing the workshop footprint and maintenance costs of the inspection fixture. The structural frame, positioning mechanism, and detection mechanism can all be assembled on-site, allowing for assembly according to different skids or vehicle models, thus enabling the inspection fixture to adapt to different vehicle designs and the layout adjustments of flexible production lines. In use, the inspection fixture is directly moved to the skid to be inspected. The aluminum alloy structural frame contributes to overall lightweight design, reducing the weight of manual handling and facilitating manual transport.

The present application relates to the field of engineering, disclose a kind of assembled round steel core mould, including at least one straight section formwork unit and / or at least one curved section formwork unit, the straight section formwork unit is enclosed by multiple straight section formwork pieces along the wedge-shaped arc surface into cylindrical, the curved section formwork unit is enclosed by multiple curved section formwork pieces into arc pipe, adjacent formwork piece and adjacent formwork unit are detachably connected by detachable connecting piece.The beneficial effects of the present application are that under the premise of guaranteeing structural strength and anti-floating safety, the steel mould is quickly disassembled and efficiently circulates in narrow space.