5results about How to "Avoid a collapsed situation" patented technology

The invention belongs to the technical field of cast-in-place pile hole collapse prevention, and particularly relates to a silt layer self-balancing hole collapse prevention cast-in-place pile structure which comprises a reinforcement cage and a pile casing, the pile casing is detachably installed at an opening of a cast-in-place pile hole, and the reinforcement cage penetrates through an inner cavity of the pile casing and makes contact with the bottom of the inner cavity of the cast-in-place pile hole. The fixing part is detachably mounted at the top of the reinforcement cage, and the top of the reinforcement cage mounted closest to an opening of a cast-in-place pile hole can be continuously pressed through the fixing part; the adjusting part is arranged outside the fixing part, and the position of the reinforcement cage can be adjusted in time through the adjusting part, so that the central axis of the reinforcement cage coincides with the central axis of the cast-in-place pile hole all the time. According to the concrete foundation pile, through mutual cooperation of the parts, stirrup deformation and main reinforcement bending of the reinforcement cage caused by collapse of a silt layer during concrete pouring can be avoided, the bearing capacity of the built concrete foundation pile is guaranteed, and meanwhile the influence on lifting of the guide pipe and normal construction of a cast-in-place pile hole is avoided.

This utility model relates to the field of power equipment mounting bracket technology, and provides a power equipment mounting bracket that facilitates the maintenance of power equipment. It includes: a utility pole; a main positioning plate, which is fixedly mounted on the surface of the utility pole; a first movable groove, which is formed on the front side of the main positioning plate; and a driven gear, which is movably mounted on the outer end of the first movable groove and has a first ladder fixedly connected to its right side. Compared with the prior art, the beneficial effects of this utility model are: during use, by setting an elastic buffer structure, the impact generated when the second and first ladders are closed is reduced, and the pulling force generated when the second and first ladders are opened is also weakened, thus allowing the second and first ladders to open and close slowly, thereby avoiding the impact generated between the second and first ladders during operation.

The utility model relates to a clamping type paper tray. It includes the support plate and a plurality of bearing legs, the support plate is constituted by the board core and the board core surface paper, the bottom surface of support plate is equipped with the positioning clamping slot, the leg core is the cuboid structure, the upper surface is pasted with the support plate bottom surface, still be connected with the rib plate between arbitrary two adjacent bearing legs, the rib plate is constituted by the rib plate core and the rib plate surface paper, the upside of rib plate core both ends still is provided with the positioning block, the positioning block is inserted with the positioning clamping slot and is fixed, the upper surface of leg core still is provided with the insertion slot with the end of rib plate and forms the insertion cooperation, the rib plate with the support plate bottom surface also is pasted with setting. The utility model connects the rib plate between the adjacent bearing legs, strengthens the compression strength of support plate through the rib plate, reduces the probability of local deformation of support plate, simplifies the assembly difficulty of component, improves the firmness after assembly.

The present application relates to the technical field of mine area treatment, in particular to a method for treating room-and-pillar type goaf, which comprises: arranging a water pumping drill site and a grouting drill site on the room-and-pillar type goaf, the grouting drill site and the water pumping drill site corresponding to the goaf space; respectively performing drilling at the water pumping drill site and the grouting drill site to obtain a water pumping hole and a grouting hole communicating with the goaf space; injecting hardenable slurry into the goaf space through the grouting hole, while pumping out underground water in the goaf space through the water pumping hole; after the slurry hardens, arranging a monitoring drill site on the room-and-pillar type goaf and performing drilling at the monitoring drill site to obtain a monitoring hole for observing the filling rate of the slurry, the monitoring hole communicating with the goaf space. The method for treating room-and-pillar type goaf can improve the stability of the room-and-pillar type goaf and avoid the collapse of the room-and-pillar type goaf.

This utility model belongs to the field of tent technology, and particularly relates to an inflatable tent, including a frame and a tent fabric. The frame is composed of multiple inflatable columns, each forming a connected inflatable chamber. It stands upright after inflation and collapses after deflation. It also has a preset curvature for forming the top wall frame, meaning the side near the top wall is not horizontal, allowing the center of the top wall to arch and preventing water accumulation. Each inflatable column is equipped with ground pegs and a first guy line, improving installation stability. The tent fabric connects adjacent inflatable columns to form the top wall, bottom wall, and multiple side walls of the tent, each with an entrance and multiple windows. The connected inflatable chambers ensure that the air pressure of each inflatable column is the same, preventing tilting and collapse due to pressure differences or wind, resulting in good stability.