4results about How to "Guarantee construction efficiency" patented technology

The utility model relates to transportation equipment technical field, concretely is a kind of large -scale metal roof exempts from car to hoist hoisting material transportation equipment, it includes: transport frame, the top of transport frame both sides is provided with several transverse movement's pressing plate, and the pressing plate side is connected with the adjusting assembly for adjusting the transverse movement of pressing plate, and the both sides end surface of transport frame is fixedly connected with traction ring, and the both sides of transport frame lower surface are fixedly connected with the top of wheel frame, and the bottom of wheel frame is rotatably installed with the roller of hinge pin, and the lower side of roller is slidably installed on guide rail, and the bottom of guide rail is fixedly connected with support plate, and the lower surface of support plate is fixedly connected with roof net rack, and one end of guide rail is fixedly connected with stopper, and the side of stopper is provided with buffer assembly;The transportation equipment replaces artificial turnover by guide rail mechanical conveying system, significantly eliminates the security risk of high-altitude handling operation, simultaneously realizes the automation of material from centralized stacking point to operation surface to and fro transfer using traction device, effectively improves construction continuity and guarantees engineering progress.

The utility model relates to a kind of guiding structure of engineering construction pile driver, including guide frame and guide sleeve, the connecting support connected with guide sleeve is provided on the guide frame, the installation component for installing connecting support is provided on the guide frame.This guiding structure of engineering construction pile driver, using the inclined surface wedge of bolt plate and locking plate, and the compression force formed by the hinging of two L-shaped plates under installation frame, realize the double locking and fixing of connecting support, and the whole assembly process only needs to insert connecting support, embed positioning frame and rotate cross connecting cylinder to complete the locking of connecting support, disassembly only needs to operate reverse step to make, so that when facing multiple diameter pile construction, corresponding size guide sleeve can be quickly replaced, shorten replacement length and guarantee construction efficiency, and using inclined surface wedge and interlocking locking two ways of fixing, avoid the problem that bolt pretightening force attenuates due to long-term vibration caused by bolt fixing.

The utility model relates to crack repair technical field, concretely is a kind of concrete dam crack repair epoxy mortar construction device: including dam body, the surface of dam body is provided with operation frame, the surface of operation frame is provided with fixed mechanism, the fixed mechanism includes support pipe, the support pipe fixedly connected on the surface of operation frame, the bottom of support pipe is fixedly connected with vacuum chuck. The utility model is attached to the surface of dam body by the vacuum chuck of fixed mechanism adsorption, and operation frame is supported, and the extrusion plate of injection mechanism exports epoxy glue in raw material box inside on the cement mortar on dam crack through material outlet, and raw material box is slid in operation frame, so that material outlet can evenly export epoxy mortar along crack, and the trowelling plate of raw material box side is flattened by epoxy mortar on the surface of dam, guarantee the construction efficiency of epoxy mortar, guarantee the construction quality of epoxy mortar.

This invention discloses a connection device and construction method for a prestressed concrete hollow square pile and its foundation. Several prestressed steel bars are pre-embedded in the sidewall of the hollow square column. A connecting sleeve is connected to the upper part of each prestressed steel bar, and the lower part of the connecting steel bar is connected to the connecting sleeve. A pile head end plate is installed at the upper end of the hollow square column. The hollow square column has several end plate holes for the connecting steel bars to pass through. A steel cage is constructed using the connecting steel bars, and then concrete is poured to form the foundation. The beneficial effects of this invention are: by integrating the standardized pile head end plate and sleeve connector with the pile body during the prefabrication stage, this invention eliminates complex on-site procedures such as sleeve installation and steel bar upsetting, significantly improving construction efficiency and reducing labor and time costs; the use of prefabricated anchoring connection and pre-filling core technology effectively controls the core filling cost while ensuring construction quality; and the pre-embedded components are integrally formed with the pile body, improving connection performance, construction efficiency, and economy.