8results about How to "Avoid construction errors" patented technology

The invention relates to the technical field of basement construction, and particularly discloses a prefabricated modular basement construction device and a construction method.The prefabricated modular basement construction device comprises an enclosure structure, a plurality of supporting column assemblies installed in the enclosure structure and floor assemblies installed on the supporting column assemblies; the enclosure structure comprises a peripheral assembly and a prefabricated inner wall plate which is installed on the peripheral assembly and matched with the peripheral assembly to form a cavity. The supporting column assembly is installed in the cavity. The peripheral assembly comprises a plurality of groups of corner columns which are vertically arranged, a plurality of groups of connecting columns which are arranged between two adjacent groups of corner columns and are vertically arranged, and prefabricated wall protection plates which are arranged between the adjacent connecting columns and / or the corner columns; a pouring cavity used for pouring concrete to form a cast-in-place wall plate is formed in the side, close to the prefabricated inner wall plate, of the prefabricated wall protection plate. The method has excellent effects in the aspects of improving the construction efficiency, enhancing the structural stability, optimizing the waterproof performance, improving the construction quality, improving the resource utilization efficiency and enhancing the design adaptability.

The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic support construction device which comprises a base and a moving assembly, a lifting assembly is arranged above the moving assembly, and an overturning assembly is arranged above the lifting assembly. The overturning assembly comprises a bracket, an overturning plate and two oil cylinders I, and a carrying table is arranged on the overturning plate; an upper row of limiting pieces and a lower row of limiting pieces used for fixing the edges of photovoltaic panels are arranged on the front face of the carrying table, each row of limiting pieces comprises a plurality of first check blocks and two second check blocks located on the outermost sides of the first check blocks, the first check blocks are each in an inverted T shape, the second check blocks are each in an L shape, and the bottom faces of the first check blocks and the second check blocks in the upper row are inclined faces; four rows of upper and lower clamping plates are further arranged on the front side of the carrying table, one end of each clamping plate is bent upwards to form a hook part, and the other end of each clamping plate penetrates through the corresponding sliding groove and then is connected with a driving set. According to the utility model, the photovoltaic panel is assembled on the platform deck, then the purline and the supporting assembly are installed in sequence, and the whole is assembled with the pipe pile, so that construction and installation are easy.

This utility model relates to a roof-spanning, compression-free Z-shaped purlin device, comprising a main purlin, a support assembly, and connecting nodes. The support assembly, with its segmented design, distributes the roof load and is positioned below the main purlin. The main purlin's web has an elongated hole. The support assembly is fixed to the main purlin via connecting nodes, which include a positioning pin and an anti-torsion groove. The positioning pin is inserted into the elongated hole on the main purlin's web and engages with the anti-torsion groove to limit and prevent torsion of the main purlin. This device achieves compression-free, high-precision purlin installation, improving construction efficiency and structural safety.

The utility model discloses a decorative masonry structure wall structure which comprises a plurality of layers of horizontally-arranged cantilever structural plates vertically arranged on a concrete wall at intervals and keel frames located on the outer side of the concrete wall and vertically arranged between the adjacent cantilever structural plates. The decorative masonry structure wall is located on the outer side of the keel frame and built between the cantilever structural plates, and the keel frame comprises a plurality of vertically-distributed main keels horizontally arranged between the adjacent cantilever structural plates at intervals and a plurality of horizontally-arranged auxiliary keels vertically arranged between the main keels at intervals. The tying pieces are arranged on each secondary keel and / or each main keel in a manner of being perpendicular to the concrete wall body, and the tying pieces are partially embedded and built in building gaps of the decorative masonry structure wall body through mortar. According to the utility model, the stability of the decorative masonry structure wall body can be improved, the perpendicularity deviation is reduced, and the advantages of stable and reliable structure and high safety are achieved.

The invention provides a wall plastering device and a construction method thereof, and relates to the technical field of house construction.The device comprises at least two bases and a stay wire assembly, sliding ways are arranged in the bases, the bases are embedded in a wall structure, and the bases are arranged at intervals; the wire pulling assembly comprises a main body and a wire pulling hook, and the main body is connected to the base and can move in the slide way in the length direction of the base; the stay wire hook is connected to the surface of the main body and used for installing a stay wire, and the method comprises the steps that a base is prefabricated, and the base is pre-buried in a wall structure; mounting a stay wire assembly, wherein the surface height of the main body is consistent with the plastering thickness of the wall body; moving the stay wire assembly according to the plastering construction progress of the wall body, so that the stay wire assembly is leveled at the plastering construction position of the wall body all the time; and after construction is completed, the stay wire assembly is detached from the base. The wall plastering device has the beneficial effects that the structure is simple, the design is reasonable, the operation is convenient, the cost is saved, and the effects of improving the flatness and the appearance quality of the wall plastering surface can be achieved.

The utility model relates to the technical field of foundation construction equipment discloses a stable piling frame for foundation construction, including fixed frame and base, fixed frame outer wall fixed connection is in the support plate left side upper end, the fixed frame upside inside fixedly connected with pulley, fixed frame left side outer wall fixedly connected with slide rail, the slide rail left side outer wall slidingly connected with sliding plate, the sliding plate left side outer wall slidingly connected with the impact block, the sliding plate bottom fixedly connected with the stake head, the fixed frame downside outer wall fixedly connected with the fixed ring, the fixed ring inside is provided with the direction subassembly, the base right side outer wall fixedly connected with the winding roller, the winding roller right side outer wall is provided with first motor. In the utility model, the motor drives the two -way screw rod to adjust the base height, ensures the equipment level, simultaneously utilizes hand wheel, gear, gear ring linkage to drive the roller clamping stake head, guarantees vertical piling, has improved the piling efficiency and security.

The invention provides a long-aging strippable coating resistant to medium-high temperature concentrated nitric acid protection. According to the present invention, the styrene-ethylene-ethylene-propylene-styrene block copolymer (SEEPS) is adopted as the matrix, the fluorine-containing chain segment and the siloxane chain segment are introduced on the molecular chain through the graft copolymerization technology, and the hydrogenated SEEPS provides the saturated hydrocarbon main chain so as to provide the excellent basic flexibility and the excellent thermoplastic peelable property; the introduction of fluorine atoms endows the chain segment with excellent chemical inertness and low surface energy, and can effectively resist oxidation and permeation of concentrated nitric acid; and the siloxane chain segment provides extremely high bond energy, so that the long-term thermal stability of the coating at the temperature of 100 DEG C is guaranteed. The three components are chemically bonded to form rigid-flexible resin, so that acid resistance, heat resistance and peelability are unified from the source.

The invention discloses a gypsum hollow floor slab positioning auxiliary device and a using method thereof, and relates to the technical field of floor slab installation. The device comprises a mounting frame, a lifting assembly, a calibration assembly, a base and an angle adjusting assembly. The lifting assembly drives a lifting plate to slide vertically through a lifting lead screw, a horizontal sliding block is connected to the lifting plate in a sliding mode, and a calibration assembly is installed above the horizontal sliding block. The calibration assembly comprises a laser line marker rotationally installed on a calibration support, and the angle can be adjusted to adapt to the inclined building seam. The mounting frame is rotationally mounted on the base, and the mounting frame can be adjusted to be horizontal on the uneven ground through cooperation of the angle adjusting assembly and the gradienter. The laser line marker is connected with the positioning installation groove in the rotating block in an inserted mode through the positioning installation block. According to the device, bilateral laser synchronous calibration, laser angle adjustment and device horizontal adjustment are achieved, and the problems that an existing device cannot synchronously calibrate bilateral building seams, the laser angle is fixed, and the laser reference accuracy is difficult to guarantee when the ground is uneven are solved.