3results about How to "Convenient pouring construction" patented technology

The invention discloses terrain-adaptive antiskid anchoring nail implanting equipment which comprises a drilling machine body, a supporting frame, a propelling sliding block, an anchoring motor, a propelling motor, a propelling lead screw, a protective cover and a protective cover driving mechanism. The supporting frame is hinged to the top of the drilling machine body and connected with the drilling machine body through the overturning oil cylinder. The pushing sliding block is connected with the supporting frame in a sliding mode through a longitudinal guide rod. An anchoring motor is fixed on the propelling sliding block; an anchor rod is fixed at the front end of a rotating shaft of the anchoring motor; the propulsion motor is fixedly connected to the rear end of the supporting frame. The propelling lead screw is fixed to the front end of a rotating shaft of the propelling motor and is in threaded connection with the propelling sliding block. The two protective covers are symmetrically arranged on the two sides of the front end of the anchor rod and are in sliding connection with the supporting frame through the transverse guide rails, and the protective cover driving mechanism is connected with the two protective covers. When the side slope is anchored, the two protective covers automatically draw close to the anchor rod, the anchoring position is protected, broken stones can be prevented from collapsing and flying in the drilling process, and the personal safety of workers is guaranteed.

The utility model relates to the field of building construction technology discloses a formwork positioning device for building engineering, including fixed link and the sleeve of sleeve joint in the outside of fixed link, one end fixedly connected with fixed plate of fixed link, the other side fixedly connected with the installation screw rod of fixed link, the outside of installation screw rod is sleeve connected with moving plate, and the inside of fixed plate and moving plate all is provided with positioning assembly, and positioning assembly includes screw thread connection in the inside of fixed plate's lead screw, and the one end close to sleeve of lead screw is rotatably connected with the compression ring, and the outside of compression ring is slidably installed with angle pressing plate, and the outside of sleeve is slidably installed with first formwork and second formboard, through setting up positioning assembly, two devices of horizontal and longitudinal can be close to splicing, make the inside of two first formwork and second formboard enclose square, and keep the joint of first formwork and second formboard from appearing gap, adapt the pouring use of square column, after the construction is completed, the recycling of device is convenient, and the construction cost is reduced.

This invention relates to a cast-in-place concrete cantilever flange steel-concrete composite beam bridge deck and its construction method, comprising the following steps: installing an adjustable movable formwork; installing brackets and cantilever formwork; installing side formwork; adjusting the formwork; integrally casting the bridge deck at the cantilever end on the same side and the bridge deck of the span section; and constructing the intermediate bridge deck section. The beneficial effects of this invention are: the steel formwork serves both as part of the span steel box girder structure and as a continuous, non-removable bottom formwork for casting the bridge deck, facilitating bridge deck casting construction; the cantilever end bridge deck on the same side and the bridge deck of the span section are integrally cast, avoiding quality problems caused by separate casting of the cantilever end in traditional processes, and improving the overall performance of the bridge deck; the intermediate bridge deck section is a pre-cast section, cast last, forming a function similar to a post-cast strip; the intermediate bridge deck section can be appropriately cast with micro-expansion concrete to benefit the overall performance of the bridge deck structure; the adjustable movable formwork is erected on the pre-cast section, resulting in a reasonable structure and saving space.