62results about How to "Meet different construction needs" patented technology

The invention relates to early-strength fast-track concrete for repairing a cement-concrete road surface. The early-strength fast-track concrete comprises cement, sand, stone and water, and is characterized by also comprising additives and a mineral admixture, and concretely comprising 10 to 20 percent of cement, 5 to 10 percent of water, 28 to 32 percent of sand, 44 to 48 percent of stone and 0 to 1.0 percent of mineral admixture. The invention overcomes defects of not high early strength, long curing period and traffic impact of the conventional common curing repair material for the cement-concrete road surface and defects of low durability and high construction cost of partial quick curing repair materials, and provides economical and practical early-strength fast-track concrete which meets the requirement of durability of the cement-concrete road surface and quickly cures and repairs the cement-concrete road surface.

The invention discloses a pay-off rack, and belongs to the technical field of cable laying tools. The pay-off rack comprises a turntable, a lifting rod and a vertical barrel with a base. The turntable is a cross made of pipes with rectangular sections, drawing pipes with rectangular sections are respectively nested in the four pipes of the cross, vertical shaft pipes are arranged on the top of the cross, electric wires can be wound on the vertical shaft pipes, the upper end of the lifting rod is connected with the center of the bottom of the turntable by a bearing, the lower end of the lifting rod is inserted into the vertical barrel, and a screw capable of fastening the lifting rod is arranged on the wall of the vertical barrel. Slide groove holes are respectively formed in the bottoms of the four pipes of the cross, and fastening screws capable of moving along the slide groove holes are arranged on the lower portions of the drawing pipes. The pay-off rack has the advantages that the diameter of the turntable can be adjusted via the drawing pipes, the height of the turntable can be adjusted via the screw on the wall of the vertical barrel, and accordingly the problem of material loss due to the fact that the diameter of an existing turntable is small and electric cables need to be cut can be solved by the aid of the pay-off rack; the base is a star-shaped frame or a ring frame, so that the stability of the turntable can be improved.

The invention discloses a multifunctional working trolley for construction of waterproof materials. The trolley includes a door structure system, an arm assembly for the construction of the waterproofmaterials and a walking mechanism; the door structure system comprises a door structure framework; the arm assembly for the construction of the waterproof materials comprises an arm body and a powersource for driving the arm body to conduct the construction of the waterproof materials, and the arm body at least comprises an arm component and a detachable fixing part for fixing the waterproof materials; the detachable fixing part comprises a waterproof material fixing frame and a detachable clamping part, and at least one end of the waterproof material fixing frame is connected with the arm component; the detachable clamping part is used for fixing the waterproof materials in a detachable mode; the walking mechanism is used for driving the whole trolley to move and connected with the doorstructure framework. The multifunctional working trolley for the construction of the waterproof materials has the advantages that the structure is simplified, modular design is adopted and the trolley can be adjusted to meet different construction demands of section tunnels, and is applicable to construction including rebar tying, arrangement of waterproof cloth or waterproof plates and the likeand high in practicability.

The invention discloses a full-automatic road traffic stone laying machine for park and garden constructions of municipal roads. The full-automatic road traffic stone laying machine for the park and garden constructions of the municipal roads comprises a guide rail device (1), a slot planing device (2), a tamping device (3), a cement paste spraying mechanism (4), a road traffic stone laying device (5), a side grouting device (6), a connecting device (7) and a guide rail sliding device (8); the guide rail device (1) is fixedly arranged on the ground; the slot planing device (2), the tamping device (3), the cement paste spraying mechanism (4), the road traffic stone laying device (5) and the side grouting device (6) are arranged in sequence; and the slot planing device (2) is fixedly connected with the tamping device (3) through the connecting device (7). The full-automatic road traffic stone laying machine for the park and garden constructions of the municipal roads belongs to multi-functional equipment, which can realize functions such as slot planing, tamping, bed course laying, road traffic stone laying and road traffic stone side grouting and can also lay road traffic stones on circular arc road surfaces; therefore, the full-automatic road traffic stone laying machine for the park and garden constructions of the municipal roads is advantaged in that the functions of the full-automatic road traffic stone laying machine are complete, the automatic level of the full-automatic road traffic stone laying machine is high, the labor force is saved and convenience is brought to construction personnel.

The invention provides a cable construction climbing device for a high ladder. The cable construction climbing device for the high ladder is composed of a main body frame, a construction mechanism, aclimbing drive motor, a drive shaft, a drive climbing wheel, a guide rod, a driven climbing wheel, a connection shaft for a slide limit gear, the slide limit gear, a rotary limit device, a driven shaft, a slide block, a drive climbing wheel main shaft and a power transmission device. The cable construction climbing device for the high ladder is simple and compact in structure, stable and reliablein working, and still capable of ensuring normal construction working in the case of thickness change of a cable; the cable construction climbing device for the high ladder is high in adaption capacity to different construction tasks, capable of replacing a construction mechanism according to the different construction tasks to meet different construction needs, and wide in application prospect; and the cable construction climbing device for the high ladder is further capable of installing other mechanisms for the other tasks of maintenance and the like for the high ladder except completing the construction tasks, and wide in application range.

The invention provides a fiber reinforced concrete frame structure, and belongs to the field of concrete members. The fiber reinforced concrete frame structure comprises a plurality of frame units formed by connecting a plurality of reinforcement cages, each frame unit comprises a plurality of concrete beams and concrete columns which are crossed and vertically arranged, and the concrete beams andthe concrete columns are composed of the reinforcement cages and concrete poured in the reinforcement cages; prestressed fiber reinforced composite sheets are fixedly clamped on the surfaces of the concrete beams and the surfaces of the concrete columns through anchorage devices, the clamping anchorage devices are connected with the reinforcement cages, and reinforced fiber reinforced concrete joints are formed at the joints of the concrete beams and the concrete columns; and each reinforcement cage comprises in-column profile steel and in-beam profile steel, the periphery of the in-column profile steel is connected with one piece of in-beam profile steel, the in-column profile steel and the in-beam profile steel form a reinforcement cage structure, and fiber reinforced concrete is pouredinto the reinforcement cage structure. The structure adopts a limiting material to effectively improve the tensile strength and the crack resistance of the concrete in a plastic area, and the deformability and the bearing capacity of the plastic area can be enhanced.

The invention discloses a fully automatic road surfacing machine for municipal road garden construction. The machine comprises a guide rail device, a dadoing device, a ramming device, a cement paste sprinkling mechanism, a connecting device and a guide rail sliding device, the guide rail device is fixedly arranged on the ground, the dadoing device, the ramming device and the cement paste sprinkling mechanism are sequentially arranged, the dadoing device is connected with the ramming device through the connecting device, the ramming device is connected with the cement paste sprinkling mechanism through connecting device, the guide rail sliding device is fixedly arranged at the same side of the dadoing device, the ramming device and the cement paste sprinkling mechanism, and the guide rail sliding device is arranged in the guide rail device in a clamping manner and can slide relative to the guide rail device. The road stone surfacing machine belongs to a multifunctional device, has dadoing, ramming and cushion laying functions, also can be used for constructing arc-shaped road surfaces, and has the advantages of complete functions, high automation degree, labor saving, and bringing of convenience for construction staff.

The invention discloses a special-shaped prefabricated prestressed wall connecting structure and an assembly method. The connecting structure comprises shear wall plates and prestressed walls, whereineach prestressed wall comprises a matrix and connectors distributed around the matrix; each connector is provided with a longitudinal groove; each longitudinal groove penetrates through the top surface and the bottom surface of each connector as well as the side surface away from each matrix; one side surface of each shear wall plate is connected with each longitudinal groove to enable each longitudinal groove to form a longitudinal groove well; prestressed reinforcements penetrating through the top surface and the bottom surface of each matrix are distributed in each matrix; transverse shearreinforcements transversely penetrating through each longitudinal groove are pre-embedded in each longitudinal groove; embedded reinforcements are arranged between each shear wall plate and each prestressed wall; and one end of each embedded reinforcement is positioned in each matrix, and the other end of each embedded reinforcement passes through each longitudinal groove and extends into each shear wall plate. The connecting structure disclosed by the invention has the advantages that on the premise of guaranteeing the quality, the construction process is simplified, and the construction cost is reduced.

The invention discloses a multifunctional road grouting equipment assembly and a control method thereof; the multifunctional road grouting equipment assembly comprises a vehicle body and a grouting apparatus arranged on a chassis of the vehicle body; the grouting apparatus comprises a support arranged on the chassis, two powder chambers are arranged on the support, the grouting apparatus also comprises two water storage boxes arranged on the chassis and two stirring tanks arranged on the chassis, a screw feeder is disposed between each powder chamber and the corresponding stirring tank, and water in each water storage box is conveyed to the corresponding stirring tank through a clear water pump. The multifunctional road grouting equipment assembly and the control method thereof provided herein have the advantages that with two stirring tanks, it is possible to prepare grouting slurries under different requirements; the assembly is simple in structure and convenient to use; slurry performance and the control requirement are greatly increased.

The invention discloses a high-plasticity dissolvable magnesium alloy as well as a preparation method and application thereof. The high-plasticity dissolvable magnesium alloy is composed of the following components of, in percentage by mass, 1%-3% of Zn, 0.1%-0.3% of Al, 0.1%-0.3% of Cu, 0.1%-1% of rare earth metal and the balance Mg, and the rare earth metal is at least one of Gd and Y. The preparation method comprises the following steps of casting to obtain a cast ingot, heating to 380-420 DEG C, processing the cast ingot into a bar under the conditions that the extrusion speed is 2-5mm / s and the extrusion ratio is not less than 16, and heating at 150-200 DEG C for 18-24 hours to perform heat treatment, thus obtaining the high-plasticity dissolvable magnesium alloy. The elongation of the dissolvable magnesium alloy at room temperature is greater than 25%, the dissolvable magnesium alloy has good plasticity and high strength in both the radial direction and the axial direction, the dissolution rate of the dissolvable magnesium alloy is adjustable, and the dissolvable magnesium alloy can be applied to packer tools or parts requiring large plasticity in oil and gas field fracturingtransformation construction.

The invention discloses a concrete mixing method based on full-automatic concrete mixing equipment. The problems existing in the prior art that the manual mixing operation is labor-consuming, the quality is non-uniform, the production efficiency is low and the requirement on a construction site is high are mainly solved. With the adoption of the technical scheme, the full-automatic concrete mixingequipment comprises a base, a feeding mechanism, a transmission mechanism, a mixing mechanism, an operation panel and an electric appliance cabinet, wherein the mixing mechanism is positioned in front of the center of the base; the feeding mechanism is positioned in the rear of the mixing mechanism; the transmission mechanism is positioned on the right side of the mixing mechanism; the electric appliance cabinet is positioned on the left rear of the mixing mechanism; the operation panel is mounted on the left upper part of the electric appliance cabinet. The problems are well solved, and theconcrete mixing method can be applied to concrete mixing in constructional engineering.

The invention relates to the technical field of construction machinery, in particular to a fully-automatic intelligent sand screening machine used for a construction site. The fully-automatic intelligent sand screening machine used for the construction site comprises a fixed frame, a sand screening mechanism, a sand conveying mechanism, a pulverizing mechanism, a regulating assembly and a conveying mechanism, and further comprises a sand storage box, a drive assembly, a second detecting element and a controller, wherein the sand screening mechanism comprises a sand screening frame which consists of two longitudinal boards and a transverse board; a steel wire rope is arranged between the sand screening frame and the fixed frame; an inclined sand screening net is arranged on the sand screening frame; one side of the sand screening frame is provided with a drive device; a regulating mechanism is arranged on the drive device; a first detecting element is arranged in the sand storage box; and the drive assembly is used for driving a sealing plate to operate while the first detecting element detects that sand particles are stored to predetermined height. The fully-automatic intelligent sand screening machine realizes automatic screening of sand, reduces labor intensity of a worker, effectively improves sand screening efficiency, can realize screening sands of different specifications, meets different construction needs, and has relatively high practicability.