8results about How to "Safe and reliable support" patented technology

The utility model discloses a novel photovoltaic assembly end portion pressing block assembly, comprising an upper portion pressing block and a lower portion pressing block, at least part of the end portion of the upper portion pressing block is contacted with the outer side end face of the top of a purline, and the lower portion pressing block is provided with a first contact portion contacted with the inner side end face of the top of the purline. Connecting holes are formed in the upper pressing block and the lower pressing block, the upper pressing block and the lower pressing block are locked to the top of the purline through connecting bolts, after the upper pressing block and the lower pressing block are locked, the ends, away from the purline, of the upper pressing block and the lower pressing block abut against each other, and a connecting part connected with a photovoltaic module is further arranged on the upper pressing block; different from a traditional photovoltaic module end portion pressing block, the novel photovoltaic module end portion pressing block is additionally provided with the lower pressing block, the photovoltaic module can be clamped on the photovoltaic support purline without forming holes in the photovoltaic support purline again, and the novel photovoltaic module end portion pressing block is particularly suitable for a built module needing to be reinforced.

The utility model relates to the technical field of jacking devices, in particular to a bridge support replacement jacking device which comprises a hydraulic column and a hydraulic jacking cylinder. And two groups of hydraulic jacking cylinders are mounted on the outer side of the hydraulic column. The two sets of hydraulic jacking cylinders are connected with the top plate to assist the hydraulic columns for supporting, so that the bearing capacity of the hydraulic columns can adapt to actual loads of different bridges, sufficient supporting force is provided, it is ensured that the hydraulic columns can safely support the upper structures of the bridges, and the load requirements of different bridges are met; load can be dispersed, overload of a single hydraulic cylinder is avoided, additional lateral support is provided for the hydraulic cylinders, the hydraulic cylinders are prevented from overturning in the jacking process, the risk of equipment damage is reduced, the two sets of hydraulic jacking cylinders are used for assisting in supporting, the load is effectively dispersed, local stress concentration is reduced, and the reliability of equipment is improved. And the risk that the bridge structure cracks or deforms in the jacking process is reduced, and the overall safety is improved.

The utility model provides adjustable support frock of LNG transport ship of height adjustable, including support main part and control component, support main part bottom is connected with support base, the top support panel is installed with top support panel through control component in support main part top, fork truck carries hole frame, the work platform below is provided with fork truck carries hole frame, fork truck carries hole frame is connected in support main part side surface. The utility model discloses strong stability, easy transportation and storage, and the operation safety has obtained higher guarantee, and simultaneously this support frock can be used as construction operation platform to carry out other construction operations in a certain range, has improved the use efficiency of this frock, and simultaneously this support frok structure form is simple, easy to make, can adjust according to the sectional jacking position of different size, different shape, and the flexibility is strong, has the characteristics such as convenient installation, stable support, strong carrying capacity, height adjustable, can ensure that the ship sectional assembly work can be carried out quickly, efficiently, safely.

This utility model relates to the technical field of bracing devices, specifically disclosing an active spiral steel pipe bracing device. It includes a spiral steel pipe with vertical support plates fixedly installed at both ends. A support screw is fixedly installed on one side of the spiral steel pipe, with one end of the support screw passing through the vertical support plate and extending into the interior of the spiral steel pipe. A limit plate is fixedly installed at one end of the support screw, and a pressure sensor is fixedly installed at the other end of the spiral steel pipe. This utility model achieves precise application and dynamic control of prestress by electrically driving the adjustment of the support length and using the pressure sensor to monitor the support force in real time. It offers efficient adjustment, intuitive monitoring, avoids overpressure or underpressure, and improves support safety and construction efficiency.

The application provides a large-span skew bridge integrated bridging equipment and a construction method thereof, which comprises a first front support leg, a second front support leg, a middle support leg and a tail support leg arranged from left to right at the lower part of a main beam, a first main trolley and a second main trolley slidingly connected at the top of the main beam, and an auxiliary trolley arranged at the side close to the tail support leg, wherein the lower parts of the first main trolley and the second main trolley are connected through a rotary hoist, and the rotary hoist is used for completing the hoisting of a bridge component. The application greatly improves the adaptability to the construction of large-span skew bridges, can adapt to variable skew angles, has high structural strength, high stability and high construction efficiency.

This invention discloses a formwork and construction method for a partially ultra-high cast-in-place beam in a large prefabricated factory building, relating to the field of building construction technology. It includes angle irons installed on both sides of a precast beam. Bolt holes are provided on one side surface of the angle irons, and fixing holes are provided on the other side surface. Square steel is installed above the angle irons, and a bottom beam formwork is installed above the square steel. Stirrups are installed above the bottom beam formwork, and the stirrups are filled with cast-in-place reinforcing steel. Side forms are provided on the surfaces of the stirrups, and square timber is installed on the side of the side forms away from the stirrups. The method employs a formwork support system where angle irons are mechanically anchored to the sides of the already installed high-altitude precast beam as load-bearing supports, and square steel is placed on the angle irons as a load-bearing frame. The anchor holes at the fixing points between the angle irons and the precast beams are L-shaped, allowing for variable elevation of the angle irons, ensuring both safe formwork support and smooth demolding.

The utility model discloses a coal mine shed roadway temporary supporting device which comprises a telescopic top frame, the telescopic top frame comprises fixed arms arranged in parallel, telescopic arms driven by hydraulic telescopic oil cylinders are arranged in the fixed arms, a second connecting rod is fixedly connected between the front ends of the telescopic arms on the two sides, and a beam trimmer is arranged on the second connecting rod. The telescopic stand columns are symmetrically arranged below the telescopic top frame and comprise fixing columns, telescopic columns driven by lifting hydraulic oil cylinders are arranged in the fixing columns, the front ends of the telescopic columns on the two sides are hinged to the lower portions of the fixing arms on the two sides respectively, and the lower ends of the fixing columns on the two sides are hinged to grafting combined fasteners. The grafting combination fasteners on the two sides are fixedly connected to the two sides of a large frame of the heading machine respectively, and a connecting column is connected between the fixing columns on the two sides and connected to the upper portion of a cutting arm of the heading machine through a turnover hydraulic cylinder. The device can safely, reliably and quickly support the empty roof area, the safety of tunneling production is greatly improved, the production efficiency is greatly improved, and the device is convenient to use.