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

The invention discloses a novel inorganic waterproof plugging material and a preparation method thereof. The novel inorganic waterproof plugging material comprises fly coal ash, steel slag, slag, metakaolin, ordinary portland cement, sodium silicate and sodium hydroxide. The preparation method comprises the following steps that the sodium hydroxide is dissolved in water in accordance with a mix proportion, is added to sodium silicate after the sodium hydroxide is completely dissolved, and evenly stirred to obtain an alkali activator which keeps stand for 2h to be ready for use; and powder is added to a blender according to a mix proportion to be evenly mixed, the prepared alkali activator is added in accordance with a ratio to be stirred for 3min to obtain the novel inorganic waterproof plugging material which can be used for waterproofing and plugging of a building roof, a metope, a pipeline and other parts. Compared with the traditional inorganic waterproof plugging material taking cement as a main base material, the novel inorganic waterproof plugging material provided by the invention has the technical advantages of high strength in the early stage, good impermeability, freeze resistance, heat resistance and the like, a large number of industrial waste slag is utilized, the production process is environment-friendly, and the economic benefits and social benefits are good.

The invention discloses a preparation method of a slump retaining agent capable of releasing controllable polycarboxylic acid and relates to the technical field of chemical additives for building materials. The preparation method includes the following steps that 1, 144-180 parts of unsaturated polyoxyethylene ether monomer and 144-180 parts of deionized water are added, by mass, to a three-mouth flask, stirring is performed till dissolution is completed, heating is performed to reach 45-60 DEG C during stirring, and heat preservation is performed; 2, 1.0-2.0 parts of a chain transfer agent and 0.5-1.5 parts of an initiator are dissolved, by mass, in 30-60 parts of deionized water to prepare a solution A; 3, 2-20 parts of unsaturated acid and 20-30 parts of unsaturated ester are dissolved, by mass, in 10-20 parts of deionized water to prepare a solution B; 4, after the step 1 is completed, the solution A and the solution B are simultaneously dropwise added to the three-mouth flask, the adding times are respectively 180-210 minutes and 150-180 minutes, reaction continues for 60-80 minutes, deionized water is added, dilution is performed till the theoretical solid content of 40% is reached, a finished product is obtained. The preparation method can meet the requirement for slump keeping time according to construction, and several slump retaining agents can be flexibly compounded to meet different construction requirements.

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 provides a construction method for underground pipelines spanning foundation pits without modification and relocation, comprising the following steps: a. Excavating the soil on both sides of the pipeline to form underground grooves; The first steel cage and the second steel cage that protect and support the outside of the pipeline; c. lift the first steel cage and the second steel cage at the same time and place them in the underground grooves on both sides of the pipeline; d. Translate the first reinforcement cage and the second reinforcement cage in the same direction to make the first reinforcement cage and the second reinforcement cage contact; space; f. Pour concrete into the first reinforcement cage and the second reinforcement cage respectively to form the first wall width and the second wall width; g. After recycling the sand bags, construct the first wall width and the second wall width External ground connection wall. The invention reasonably solves the problem of design and construction of the ground connecting wall enclosure structure under the working condition that the underground pipeline across the foundation pit is free from modification and relocation.

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 belongs to a lightweight dismantle-free heat insulation template integrated composite heat insulation system and manufacturing technology thereof. The lightweight dismantle-free heat insulation template integrated composite heat insulation system comprises a cast-in-place concrete base wall body, a heat insulation template inner protective layer, an organic heat insulation material layer, seamed reinforced glass wool or a rock wool board inorganic material insulation layer, and a polymer mortar layer are sequentially arranged on the outer side of the cast-in-place concrete base wall body, and are fixedly mounted and connected with the cast-in-place concrete base wall body through pre-embedded anchoring connecting parts, and the outer surface of the seamed reinforced glass wool or the rock wool board inorganic material insulation layer is coated with the polymer mortar layer. The lightweight dismantle-free heat insulation template integrated composite heat insulation system has the advantages that structure design is reasonable, the lightweight, high intensity and low heat conductivity performance are achieved, the comprehensive cost can be lowered, the load of buildings is relieved, the whole thickness of the mortar layer on the outer surface of the wall body is advantageously controlled, and the safety of anti-cracking, anti-falling-off and anti-fire is improved.

The invention provides a rock-anchored beam construction trolley which comprises a framework part, a template part arranged on the framework part through a connection part, and a walking mechanism, wherein the framework part is of a frame steel structure formed by connecting cross beams, vertical columns and longitudinal beams; the template part comprises template components; the template components comprise a plurality of single templates arranged along the length direction of a rock-anchored beam; the connection part comprises connection pieces; the connection pieces comprise a plurality of groups of single connection pieces arranged in sequence; and the single connection pieces comprise transverse moving components and jacking components. The application of the rock-anchored beam construction trolley has the effects that the whole structure is simplified; by the modular design, the rock-anchored beam construction trolley is convenient to mount and disassemble; the construction process is simplified, and the construction period is shortened; the quantity of the template components in the template part and the quantity of the single connection pieces in the connection pieces are both selected according to an actual situation; and construction of the rock-anchored beams on one side or two sides is realized, and the practicability is high. The invention further provides a construction method of the rock-anchored beam construction trolley; and the construction process is simplified, and the construction period is short.

The invention discloses a polyurethane waterproof coating and a preparation method thereof, and a two-component polyurethane waterproof coating and a preparation method thereof. The two-component polyurethane waterproof coating comprises a material A and a material B. The material A is prepared from the following components in parts by weight: 10 to 15 parts of a plasticizer, 5 to 10 parts of filling oil, 45 to 55 parts of polyether polyol A, 10 to 20 parts of polyether polyol B, 15 to 20 parts of diphenylmethane diisocyanate, 0.1 to 1 part of a catalyst and 5 to 8 parts of solvent oil. The material B comprises the following components in parts by weight: 5-10 parts of a plasticizer, 5-10 parts of extending oil, 20-25 parts of polyether polyol A, 5-10 parts of polyether polyol C, 5-10 parts of diphenylmethane diisocyanate, 15-20 parts of 800-mesh coarse whiting, 20-25 parts of 600-mesh talcum powder, 10-15 parts of 400-mesh coarse whiting, a defoaming agent, a dispersing agent, a catalyst, solvent oil and a curing agent. A mass ratio of the material A to the material B is 1: (2-4). According to the invention, various functions can be realized.

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 drilling positioning mechanism and a drilling machine with the mechanism. The drilling positioning mechanism comprises a base and a drilling motor. The side, located on the same side with a drilling rod, of a mounting base is fixedly provided with a first rack, the base is rotatably connected with a gear engaged with the first rack, the side, away from the drill rod, of the gear is provided with a second rack, the first rack and the second rack are in heterotopia perpendicular, the bottom of the second rack is fixedly provided with a laser emitter, the laser emitter is limited by a limiting assembly, when the laser emitter is located on the maximum downward moving stroke, the drilling rod and the laser emitter are coaxial, through the laser emitter, positioning ofdrilling can be assisted, drilling precision can be improved, through cooperative use of the first rack, the second rack and the gear, the laser emitter can be coaxial with the drilling rod during positioning, and positioning effect can be improved. Meanwhile, in the feeding process of the drilling rod, the laser emitter can be staggered from the drilling rod, and normal feeding of the drilling rod can be ensured.

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 construction method of a pile foundation. The construction method comprises the steps of arranging a pile foundation engineering construction plane, dividing a pile foundation engineering construction area, determining a pile foundation construction sequence and a construction direction, constructing cast-in-situ bored piles and constructing lime-soil compaction piles. The construction method has the beneficial effects that the construction area is divided, so that synchronous construction can be performed, the construction progress is improved, the pile foundation construction is completed within one month, and labor force is effectively arranged to advance and retreat from the site according to the work amount and the working face size of different constructionstages, so that labor resources are fully utilized; and two construction methods of cast-in-situ bored pile construction and lime-soil compaction pile construction are selected according to differentconstruction foundations during construction, and the two construction methods are specifically selected, so that different construction requirements are met.

The invention relates to stable-transporting horizontal directional drilling equipment with an adjusting function. The stable-transporting horizontal directional drilling equipment comprises a base, adriving trolley and three drilling rods and further comprises a stabilizing mechanism, a fixing frame, a limiting groove, two fixing rods, three fixing plates, two moving mechanisms and three transmission plates; each moving mechanism comprises a first motor, a cam, a second motor, a gear, a rack and a clamping assembly; and each clamping assembly comprises a limiting rod, a sliding ring, two driving units and two clamping units. According to the stable-transporting horizontal directional drilling equipment with the adjusting function, the spacing between every two fixing plates is adjusted through the corresponding moving mechanism so that the drilling equipment can meet different construction requirements, and the practicability of the drilling equipment is improved accordingly; and through the stabilizing mechanism, a drill rod is supported while rotation of the drill rod is not affected, meanwhile, the drill rod is driven to move stably, and the market competitiveness of the drilling equipment is improved accordingly.

The invention discloses a method for using a foam light material for casting an annular proving road in situ.The method comprises the following steps that a basal surface and an arc-shaped gradient face of the annular proving road are segmented according to the construction cross section; a forming die of an arc-shaped gradient face area on each layer is manufactured according to the segmented arc-shaped gradient face areas; a base body where the basal face area is located is cast in a layered mode; the forming die of the segmented arc-shaped gradient area on the bottommost layer is installed, and casting is carried out according to the forming die; when initial setting intensity of foam light soil on the former layer is larger than 0.3 Mpa, the segmented arc-shaped gradient face area on each layer is cast for the next time until casting is completed.The constructed foam light soil is adopted for casting the annular proving road, construction is convenient, construction speed is high, and the construction period is shortened.By segmenting the whole arc-shaped gradient face into different areas, the forming dies are prefabricated better, construction is convenient, and the different construction requirements are met.

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 provides a concrete spreading trolley. The concrete spreading trolley comprises a vehicle body, a rotary telescopic connecting pipe and a discharging pipe, wherein the rotary telescopicconnecting pipe and the discharging pipe are arranged on the vehicle body, and the rotary telescopic connecting pipe comprises a rotary mechanism, a bent pipe and a telescopic sleeve pipe; the discharging pipe is a herringbone pipe or a Y-shaped pipe formed by one first section pipe and two second section pipes. The concrete spreading trolley has the following effects that firstly, the structure is simplified, namely through arranging the rotary telescopic connecting pipe, the rotary mechanism in the rotary telescopic connecting pipe can drive the bent pipe and the telescopic sleeve pipe to rotate, so that the requirements of side pouring and top pouring are met; secondly, the telescopic sleeve pipe can stretch and retract to meet the requirements of different pouring distances; and thirdly, the discharging pipe adopts the herringbone pipe or the Y-shaped pipe, so that lateral multi-window simultaneous pouring is achieved, the pouring efficiency is improved, and the pouring quality canbe ensured. The invention further discloses a concrete spreader which comprises the concrete spreading trolley. The invention further discloses a trolley which comprises the concrete spreader.

The invention relates to the technical field of building decoration, in particular to an intelligent slotting device for ground decoration construction. The intelligent slotting device for ground decoration construction comprises a fixing frame composed of two correspondingly-arranged L-shaped plates and a sealing plate, wherein sliding rails and sliding blocks are arranged on the two L-shaped plates, a fixing cavity is arranged between the two sliding blocks, connecting plates are arranged on two sides of an accommodating cavity, a first servo motor and a rod body connected with the first servo motor are arranged in the accommodating cavity, a second servo motor is and a grooving blade connected with the second servo motor are arranged on the rod body, driving mechanisms are arranged on two sides of the fixing cavity, the driving mechanisms comprise third servo motors arranged on the connecting plate and gears arranged on the third servo motors, racks are arranged below the sliding rails, and the device further comprises a controller. The intelligent slotting device is high in automation degree, high in accuracy of a straight slot, accurate in position and high in radian of an arcslot, effectively prevents damage of a pipeline laid in the turning position, and effectively improves the slotting efficiency due to automatic switching of the straight slot and the arc slot.

The invention discloses a load-bearing gantry crane boom for road and bridge construction. The load-bearing gantry crane boom comprises two bases. The two bases are arranged in bilateral symmetry. A control cabinet is fixed to the side face of one base. The control cabinet is internally provided with an open source single-chip microcomputer and a wireless transceiver. A signal amplifier is mountedon the side face of the wireless transceiver. Movable rods are fixed to the tops of the bases. The movable rods are movably connected with mounting seats. The movable rods are sleeved with damping springs. The positions, corresponding to the damping springs, of the bases are provided with countersunk grooves. Information processed through the open source single-chip microcomputer is amplified through the signal amplifier. Amplified signals are transmitted to a remote control terminal through the wireless transceiver. The remote control terminal conducts analysis and processing on the information and conducts remote control on the crane boom. The load-bearing gantry crane boom for road and bridge construction is high in intelligence level, convenient to control and good in safety, and therisk of field operation is avoided.

The invention discloses a micro-disturbance foundation reinforcement device and an underground tunnel envelope structure construction method, and aims to provide the micro-disturbance foundation reinforcement device and the underground tunnel enclosure structure construction method which can adjust the outer diameter of the same cement soil mixing pile according to the needs, and form a step-shaped cement soil mixing pile through construction, so as to meet different construction needs. The micro-disturbance foundation reinforcement device comprises a mixing pile machine, a high-pressure grouting system and a low-pressure grouting system; the mixing pile machine comprises a drill pipe, the lower end of the drill pipe is provided with a drill bit, and the bottom of the drill pipe is furtherprovided with at least two mixing paddles; the high-pressure grouting system comprises a high-pressure grouting channel which is arranged in the drill pipe and a high-pressure jet channel which is arranged in one of the mixing paddles; and the low-pressure grouting system comprises a low-pressure grouting system which is arranged in the drill pipe and a low-pressure grouting channel which is arranged at the bottom of the drill pipe.

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 belongs to the technical fields of cast explosive and solid propellants. In order to overcome problems like high curing molding temperature, long room-temperature curing time and easy sedimentation of solid components of a conventional HTPB type cast PBX explosive, the invention provides a compound catalyst binder system used for room-temperature curing of a PBX cast explosive. The compound catalyst binder system is prepared from hydroxy-terminated polybutadiene, polyisocyanate, a curing catalyst and a catalyst namely nanometer zinc oxide according to a certain proportion, wherein the polyisocyanate is any one selected from the group consisting of IPDI, HMDI and an HDI trimer; and the curing catalyst is any one selected from the group consisting of TNB2, TPB and TEPB. According to the invention, the curing temperature of a propellant grain is reduced; the safety of the cast PBX explosive in the process of curing is improved; shrinkage stress is reduced and eliminated; the mechanical performance of propellant filling is improved; energy consumption and process cost are reduced; the pot life of a binder system is regulated through regulation of the usage amount of a catalyst, so different demands of construction are met, and the processibility of a propellant slurry is improved; the time of curing is effectively shortened; solids are prevented from sedimentation; meanwhile, cured products are improved in hardness, tensile strength, elongation at break, etc.

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 discloses an implementation method for dynamically constructing a project architecture in a multi-warehouse environment. The method comprises the steps: obtaining a pre-configured customlist file for analysis in response to a received execution instruction, and generating an analysis result; and obtaining the engineering code according to the analysis result, and constructing a project architecture. The invention further provides a device and an operation method for dynamically constructing the project architecture in the multi-warehouse environment, according to the device andthe method, construction of the project architecture can be achieved by analyzing the custom list file, different construction requirements of users can be met, and convenience and flexibility are achieved. In addition, the invention further provides a solution for solving the problem of multi-warehouse management.

The invention discloses a wall slotting device for power wiring, and belongs to the field of building engineering equipment. Two handheld supports are arranged and are fixed to the upper ends of two second supports, a water tank is arranged on a third support, the position of the water tank is located below the handheld support on the right side, a controller is arranged on a third support, the position of the controller is located below the handheld support on the left side, an electric motor is arranged on the third support, cutters are in a disc shape, two cutters are arranged, a first electromagnet is arranged below the inclined part of the third support, the lower end of the first electromagnet is provided with a triangular hammer head, a second electromagnet is arranged behind the first electromagnet, and a fifth support is fixed to the third support. The electric motor drives the cutters to rotate to line out cutting lines on the wall, the controller controls the first electromagnet and the second electromagnet to move up and down for slotting the wall, labor force is saved, and work efficiency is improved.

The invention provides a feeding mechanism for a core sampling drill. The feeding mechanism includes a storage mechanism, a supporting mechanism and a conveying mechanism, the storage mechanism comprises accommodating cavities and jacking singletons, each accommodating cavity includes a material outlet, and each jacking singleton is arranged below the corresponding accommodating cavity and used for jacking materials in the corresponding jacking cavity; the supporting mechanism includes supporting singletons, each supporting singleton is arranged at the material outlet position and used for controlling the closing and opening of the material outlet, and the conveying mechanism comprises a conveying power source, a material supporting frame and a supporting guide rail; the material supporting frame is provided with clamping groove groups and a sliding part, the clamping groove groups are located below the accommodating cavities, so that the materials in the accommodating cavities can fall into clamping grooves in the clamping groove groups; the conveying power source is used for driving the material supporting frame to move back and forth on the supporting guide rail to realize material conveying. The feeding mechanism for the core sampling drill has the effects that the device structure is simplified, the automation feeding is realized (especially automation alternate conveyingof two or more materials), the labor intensity is reduced, and the construction efficiency and construction safety are improved.

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.