275 results about "Architectural engineering" patented technology

The invention discloses a large-section tunnel supporting system penetrating through a huge karst cave hall and a construction method thereof. The supporting system comprises a plurality of steps anda tunnel base which are sequentially excavated downwards along the top of a karst cave hall backfill body, primary supports are sequentially constructed on all the steps, and the primary supports of all the steps and the tunnel base are integrally closed to form a ring; a karst cave top reinforcing body is arranged on a rock mass at the top of the first step, multiple grouting pipes are pre-buriedin the rock wall at the top of the first step in the line direction, and expanded arch springing is arranged at the bottom of the primary support of the first step; forepoling, steel floral tubes andprimary supports are arranged in excavation side walls of other steps except the first step, the forepoling and the steel floral tubes are completely located in the backfill body, and the forepolingand the steel floral tubes are not connected with the corresponding primary supports; and the tunnel base is provided with grouting steel pipe piles and reserved grouting holes.

The invention discloses a conference show device. The conference show device comprises two lifting rods, the bottom ends of the lifting rods are fixedly connected with foot pads, the top ends of the two lifting rods are sleeved with a telescopic blackboard, cylindrical grooves are formed in the positions, close to the two sides, in the telescopic blackboard, the lifting rods are sleeved with the cylindrical grooves, a first telescopic rod is fixedly connected between the two lifting rods, two fixing plates are symmetrically fixed to the top of the telescopic blackboard, a second telescopic rodis fixedly connected between the two fixing plates, two limiting cylinders are symmetrically and fixedly arranged on the back of the telescopic blackboard, openings are symmetrically formed in the opposite sides of the two limiting cylinders, torsion springs are fixedly connected to the two upper and lower opposite inner walls of the limiting cylinders, the opposite ends of the two torsion springs are jointly and fixedly connected with rollers, and projection cloth is wound between the two rollers. The device is simple and reasonable in structural design, convenient to operate, capable of adjusting the height of a show plate, and adjusting the size of the telescopic blackboard and the projection cloth, and convenient to move.

The invention discloses an automobile processing part clamping device with the good fixing performance. The part clamping device comprises a mounting base. Fixed lug seats are welded to the two ends of the two sides of the mounting base. Fixing bolts are connected to the outer walls of the tops of the fixed lug seats through threads. Bearing blocks are connected to the outer walls of the two sidesof the top of the mounting base through bolts. A horizontal lead screw is rotatably connected to the inner walls of the two bearing blocks. A second sliding block is connected to the peripheral wallof the lead screw through threads. The outer wall of the top of the second sliding block is connected with a hydraulic cylinder through bolts. The outer wall of the top of the hydraulic cylinder is connected with a mounting block through bolts. The outer wall of one side of the mounting block is connected with a servo motor through bolts. According to the part clamping device, a stepping motor isstarted, two first sliding blocks are driven to move to the middle to clamp a part through a first thread and a second thread with the opposite thread directions on the lead screw; the first sliding blocks are provided with magnets so that the part can be clamped more stably.

The invention discloses a building piling machine. The building piling machine comprises two first support plates. The upper ends of the two first support plates are each provided with two support rods, wherein every two support rods are symmetrical in the front-back direction and are fixedly connected. A same annular frame is fixedly connected among the four support rods through connecting rods.Two symmetrical arc-shaped clamping plates are fixedly connected to the inner side of the annular frame through multiple springs. Multiple limiting rods are fixedly and uniformly connected to the side, close to the annular frame, of each arc-shaped clamping plate. The multiple limiting rods at each side penetrate the surface of the annular frame through through holes formed in the surface of the annular frame and are fixedly connected with the corresponding arc-shaped clamping plate. According to the building piling machine, a pile is hammered into the ground through the impact force generatedby the gravity of a pile hammer; labor force is saved; a pile body does not need to be held by hands, and piling can be achieved; labor efficiency is improved; and in addition, the problem that accidents are caused in the piling process that the pile body is held manually, so that people are injured is avoided.

The invention relates to a pipe mounting construction technology, in particular to a construction method for mounting a large-diameter pipe by applying a cableway in a complex mountain terrain, and solves the problems of long construction period, high construction strength, severe disruption of local vegetation environment and high construction difficulty in a traditional long-distance mounting construction technology of the large-diameter pipe under the condition of complex mountain terrain. The construction method for mounting the large-diameter pipe by applying the cableway in the complex mountain terrain is realized by the steps of: (a) installation of an aerial cableway: two bearing cable ground anchors, a lifting cable ground anchor, a support column, a winch, a turning fixed pulley, a bearing cable, a bearing saddle base, a traction cable, two lifting fixed pulleys, a counterweight, a lifting movable pulley, a lifting cable and a lifting hook are selected; (b) transportation of pipe joints; (c) placement in position of the pipe joints; and (d) assembly of the pipe joints. The construction method is suitable for long-distance mounting construction of the large-diameter pipe under the condition of complex mountain terrain.

The invention discloses a method for hoisting and transporting steel plates by adopting an electromagnet in steel plants. An electromagnet for hoisting and transporting the steel plates is provided with an electromagnet buffer device; the device is vertically provided with a buffer body; the lower end of the buffer body is provided with a buffer element capable of sliding vertically; the upper end of the buffer element is provided with a spring for buffering; the buffer body is detachably provided with a buffer head; the buffer head is prepared from three different kinds of materials and are selected for use according to different hoisting and transporting fields; in use, the electromagnet is hoisted up to stably fall on steel plates required to be hoisted and transported, is supported by the buffer device so as to enable a gap of 2-3cm to be formed between the bottom surface of the electromagnet and the steel plates, then is started up again when being stable, and generates suction force so as to enable the bottom surface of the electromagnet to be in contact with the surfaces of the steel plates to achieve connection, so that the electromagnet can hoist and transport normally. The method for hoisting and transporting the steel plates by adopting the electromagnet in steel plants provided by a invention can effectively prevent scratching or collision damage to the surface quality of finished product steel plates by the electromagnet in hoisting and transporting the finished product steel plates at different temperatures, can lower auxiliary material consumption of running vehicle magnetic force hoisting and transporting and labor intensity of field workers, and can improve the working efficiency.

Disclosed herewith a modular integrated building and a construction method thereof. The building includes multiple prefabricated room units, each provided with reserved, exposed reinforcing bars at its top. A bottom of a load-bearing structure of the prefabricated room unit is embedded with grouting couple shafts. Reinforcing bars of the load-bearing structure and of the prefabricated room unit of a next floor are inserted in inner grouting chambers of the grouting couple shafts to connect two prefabricated room units of adjacent floors together. A cast-in-situ concrete interlayer is arranged for connecting adjacent prefabricated room units of a same floor together. The on-site workload is reduced significantly, the construction period is shortened greatly, and the construction is convenient and rapid.

The invention discloses a metal floor buckle comprising the upper top surface of a gusset stay and the lower channel of the gusset stay, wherein the upper top surface of a gusset stay extends to two ends, and the lower channel of the gusset stay is arranged on the inner side of the upper top surface and has the same length with the buckle; the shape of the cross section of the groove of the lower channel of the gusset stay is circular arc, the shape of the groove is matched with the shape of the head of a dedicated injection bolts, and the circular arc of the groove is bigger than a semicircle. The invention has simple structure, convenient use and favorable generality. The metal floor gusset stay not only can be used for flush joint of floor of the same thickness but also can be used for fixedly connecting floor of any thickness difference between 0 and 18 mm. The invention can serve as the single floor parts for paving construction of floor so as to reduce the types of floor parts and lower floor paving construction cost.

The invention provides a distributed line protection sleeve structure, an installation method and an electric device. The distributed line protection sleeve structure comprises a distributed line groove and a distributed line protection sleeve assembled on the distributed line groove, the distributed line groove is provided with two positioning protrusions that extend inward and are used for fixing the distributed line protection sleeve, and the two positioning protrusions which are used for a stopping function are respectively arranged at two end parts of the distributed line protection sleeve. The two end parts of the distributed line protection sleeve are stopped or clamped via the positioning protrusions, the distributed line protection sleeve is firmly fixed on the distributed line groove after being installed, the distributed line protection sleeve can be prevented from falling off, and the positioning protrusions also fulfill a positioning function; after the distributed line protection sleeve is enabled to pass through the positioning protrusions with pressure applied on the distributed line protection sleeve when being installed, a correct assembly state can be ensured when end parts of the distributed line protection sleeve are connected with the positioning protrusions in a clamped manner; if the end parts of the distributed line protection sleeve are not connected with the positioning protrusions in a clamped manner, the distributed line protection sleeve is not installed rightly; whether the distributed line protection sleeve is installed rightly can be easily determined; falling off, caused by incorrect installation, of the distributed line protection sleeve can be prevented.

The invention discloses a crack-self-healed dismounting-free insulation system and a preparation method thereof. The insulation system comprises an inner bonding fireproof layer, a heat insulation layer, an outer bonding fireproof layer, a reinforcement layer, an anti-cracking layer and a fixing member which is connected with an exterior wall, wherein rib reinforcements which are of dot-matrix arrangement are arranged between the bonding fireproof layers and the heat insulation layer. Through embedding self-healed capsules, which contain healing matrix materials, into one or more of the outer bonding fireproof layer, the inner bonding fireproof layer, the reinforcement layer and the anti-cracking layer, by virtue of the performance that the self-healed capsules automatically rupture under tension deformation and/or stress deformation and/or certain humidity and temperature change range, the healing matrix materials inside the self-healed capsules can overflow and automatically permeate to cracks or tensile damage points of the insulation system, so as to carry out healing repair. The insulation system can be applied to construction engineering construction, can be used for solving the problem of difficulty in heat insulation of the exterior wall, can replace a formwork and can automatically carry out healing repair when the insulation system encounters early-stage common problems, such as crack falling.

The invention relates to whitewashing equipment and in particular relates to tree whitewashing equipment for gardens. Aiming at solving the technical problems, the invention provides the tree whitewashing equipment for the gardens, which can be used for brushing lime slurry on trees and also can be used for stirring the lime slurry, reducing the working amount and preventing the lime slurry from being sputtered on bodies. The tree whitewashing equipment for the gardens is characterized by being comprising a trolley and the like, wherein a left-right movement device is mounted at the top of thetrolley; the left-right movement device is provided with an up-down movement device. According to the tree whitewashing equipment for the gardens, an arc-shaped hairbrush can be driven under the action of the up-down movement device to carry out whitewashing on the trees, and the trees do not need to be whitewashed manually; meanwhile, the lime slurry also can be prevented from being sputtered onthe bodies; the left-right movement device drives a stirring device to move, the lime slurry can be stirred and manual stirring is not needed, so that the working amount is reduced.

The invention discloses a construction method for integral hoisting of a large-span steel trussed beam. The construction method includes the following steps: (1), selecting a suspension center for integral hoisting of the large-span steel trussed beam, (2), designing and constructing a hoisting tool, and (3), constructing for integral hoisting. The construction method has the advantages that the steel trussed beam is erected through integral hoisting under a navigation condition, and the construction method is simpler in operation and easier in accuracy control as compared with a method in which the steel trussed beam is constructed through less-support segmentation assembly and floating support; safety risk of operations at sea is reduced, construction period is shortened, and construction cost is reduced.

The invention discloses a textile frame, which comprises a bottom plate, rollers are installed at the four corners of the bottom surface of the bottom plate, pillars are welded at the four corners of the upper surface of the bottom plate, and a top plate is welded between the top ends of the four pillars, and the top plate Both sides of the upper surface are welded with risers, each riser is equipped with a first positioning bolt, each riser is equipped with a vertical rod, and the top of the vertical rod is welded with a horizontally arranged support rod. A hanging ring is sheathed on the support rod, and a dust collecting bucket is welded at the bottom of the hanging ring. In this textile frame, sleeves are welded on both sides of the top plate, and the cooperation between the sleeve and the pole can be used to move the frame with the rollers, and then the pole can be pulled out, and then the second positioning bolt can be connected to the through hole on the pole. Fixing is carried out, so that the frame can be supported by the pole and the sleeve pipe, so that the frame is relatively stable when in use, and the setting of the support block can support the bottom of the pole.

The invention provides a low-material-consumption and simple-structure erecting structure and erecting method for a top ring beam construction platform of a concrete silo and relates to the technicalfield of concrete silo construction. The erecting method for the top ring beam construction platform of the concrete silo comprises the following steps: pre-burying two layers of steel pipe layers separately consisting of a plurality of horizontally arranged steel pipes at the upper end of a silo wall, putting cantilever scaffold pipes into the steel pipes of the steel pipe layers, and separatelyerecting vertical rod scaffold pipes, cross rod scaffold pipes and diagonal scaffold pipes for support stress components at the cantilever sections, located at the two sides of the silo wall, of the cantilever scaffold pipes. The construction cost can be saved, and the construction cycle can be shortened.

The invention discloses a building embedded part device for shaping, positioning and adjusting in the technical field of building construction. The building embedded part device for shaping, positioning and adjusting comprises an annular supporting part serving as a main body support and a positioning part used for limiting the position of a steel bar main reinforcement, wherein the annular supporting part can be rotationally driven through a screw rod piece, and the annular supporting part is translated; the positioning part comprises a sliding end, a telescopic end and a positioning end, and a clamping structure is installed on the positioning part. The building embedded part device can shape and position the steel bar main reinforcement of a building embedded part, the sliding end adjusts the position of the positioning part according to the arrangement modes of different steel bar main reinforcements, and the positioning part can adjust the angle position on the supporting part; before the steel bar main reinforcement is inserted into a wear-resistant sleeve, the steel bar main reinforcement can be rotated, finely adjusted and locked through a rotating sleeve, so that the steel bar main reinforcement can be quickly aligned and inserted, and a steel bar disc reinforcement can be quickly fixed to the strong-structure side of the steel bar main reinforcement through the clamping structure.

A ladle down nozzle with a bowl-shaped seal ring comprises a ladle down nozzle and the bowl-shaped seal ring, wherein the bowl-shaped seal ring is fixedly adhered to a conical cylinder at the lower end of the ladle down nozzle. The ladle down nozzle is composed of a ladle down nozzle body and a steel casing. The ladle down nozzle body is a cylinder, and a conical cylinder is arranged on the lower portion of the ladle down nozzle body. The upper end surface and the lower end surface of the ladle down nozzle body are planes, a circular table is arranged on an outer circle at the upper end of the ladle down nozzle body, and the outer circle at the upper end of the ladle down nozzle body and the upper end surface of the circular table are in arc chamfering reducing transition. A central pouring hole is formed on the ladle down nozzle body, the steel casing wraps on the ladle down nozzle body, the upper end surface of the steel casing is level to the upper end surface of the circular table, and the bottom end of the conical cylinder on the lower portion of the ladle down nozzle body exposes out of the bottom end of the steel casing. A pouring hole and a step hole matched with the bottom end of the conical cylinder on the lower portion of the ladle down nozzle body are formed at the bottom of the bowl-shaped seal ring.

The invention discloses an assembled prefabricated floor connecting system and a construction method of the assembled prefabricated floor connecting system. The construction method comprises the following steps of 1) binding floor reinforcing mesh sheets in a workshop, embedding a plurality of longitudinal stressed reinforcing bars on the reinforcing mesh sheets, and connecting longitudinal stressed reinforcing bars on the two reinforcing mesh sheets through a plurality of connecting reinforcing bars and sleeves; 2) pouring concrete of the reinforcing mesh sheets to form floors; 3) screwing out the sleeves to separate the interconnected floors, and transporting the floors to a construction site; 4) welding an anti-shear steel plate to a steel beam at a construction site; 5) enabling the connecting reinforcing bars to penetrate through the anti-shear steel plate, and connecting the two ends of the connecting reinforcing bars with the longitudinal stressed reinforcing bars on the two floors through the sleeves; 6) and pouring concrete at the joints of the floors and the steel beam. The floors are effectively connected at the joints, the stress performance of the connection positionsof the joints is guaranteed, meanwhile, the prefabricated floors are manufactured in batch in the workshop, the on-site hoisting and mechanical connection operations are convenient, the construction speed is high, and the production efficiency is improved.

The invention relates to the technical field of mechanical fixing support accessory equipment, in particular to portable fixed support equipment for a gas protection welding furnace. According to the portable fixed support equipment, the height of a support device can be adjusted according to needs of workers to improve the adaptive capacity of the support device; the support device can incline to reduce use limitation of the support device; the support device can rotate so that the practicability of the support device can be improved; the portable fixed support equipment comprises the support device, a support and a base plate, and the support comprises an inserting column, an inserting pipe, a limiting column, two limiting springs and two limiting blocks; left through holes and right through holes are formed in the left side wall and the right side wall of the inserting column correspondingly, and a plurality of left limiting holes and a plurality of right limiting holes are longitudinally formed in the left side wall and the right side wall of the inserting pipe correspondingly; the support device comprises a supporting plate, a supporting frame, a first rotary shaft, a second rotary shaft and a limiting rod, and a first groove is formed in the top end of the supporting plate; the portable fixed support equipment further comprises a supporting disc and a rotary column, and a storing groove is formed in the top end of the supporting disc and internally provided with a ball bearing; and the portable fixed support equipment further comprises two supporting columns and two pulleys.

The invention relates to a marking device and particularly relates to a marking device for construction of a construction site. A technical problem to be solved by the invention is to provide the marking device for construction of the construction site, which can automatically mark, and is good in marking effect and simple to operate. The line marking device for construction of the construction site comprises a supporting plate, wheels which are rotationally arranged on the periphery of the bottom of the supporting plate; a push handle which is arranged on one side of the top of the supporting plate; a material carrying frame which is arranged in the middle of the supporting plate; a discharging assembly which is arranged on the lower side of the material carrying frame; and a driving assembly which is arranged on one side of the bottom of the supporting plate. The marking device is advantaged in that lime powder is placed in the material carrying frame by people, then a push handle is pushed forwards, under transmission, a first clamping block and a material blocking plate can be driven to move backwards, and under the action of gravity, the lime powder can fall down to the ground, so people carry out ground marking work.