214 results about "Construction worker" patented technology

The invention provides a control method of an intelligent tension system and the intelligent tension system. The method is characterized by including the steps that a loading speed control unit is built and used for detecting pressure of an oil inlet, and the pressure, monitored in real time, of the oil inlet is compared with preset pretightening force of each stage; a prestressing tendon extending amount control unit is built and used for detecting the displacement value of a prestressed steel bar in real time in the tensioning process and the displacement value of the prestressed steel bar in set holdup time after the prestressed steel bar reaches set tension force of each stage; tensioning values of different jacks are compared after first-stage tension; control signals of different stage conditions in the tensioning process are converted into electromagnetic motions and frequency converter rotation speed control requirements; according to signals fed back by a pressure sensor and a displacement sensor in the tensioning process, the related control commands undergo fuzzy conditioning. The control method and the system have the advantages of improving data measuring precision and construction efficiency, reducing labor intensity of construction workers, reducing cost, improving labor efficiency, eliminating safety hidden risks of the construction workers, and enabling the whole tensioning process to be finished at a time.

A method and system for system for rapidly determining the predicted strength of concrete prior to pouring the concrete is disclosed herein. The system and process provides for a database storing concrete family characteristics that may be updated as actual strength of poured concrete is determined. The process also allows construction workers to pour concrete with a keener knowledge of the resulting concrete strength.

A Warning Bump traffic safety device comprised of a base which is inserted over traffic cones or barrels and a strip and extensions, generally trapezoidal in cross section, attached to the base which extends into the roadway which causes both an audible and sensory warning to motorists driving over these strips. This traffic safety device is typically deployed in construction work zones in the buffer and work areas to provide additional warnings to both drivers as they approach a construction work area and additional warnings to both drivers and construction workers if a driver encroaches into lateral buffer area in the work zone. These traffic safety devices also tend to stabilize the cones and barrels.

The invention belongs to the technical field of RTLS real-time monitoring, and provides a method and system for monitoring construction intrusion of a railway station yard. The method comprises the following steps of (1), acquiring location information of each electronic tag through an electronic reader-writer, and sending the location information to a management server; (2), calculating the distance Si between each electronic tag and a dangerous area through the management server; (3), judging whether or not Si is smaller than a preset safe distance S0, and if yes, conducting the step (4); otherwise, conducting the step (5); (4), raising the alarm through an warner, wherein a camera which falls into a preset range of the corresponding electronic tag turns to the corresponding electronic tag, and sends information of the alarm to an intelligent terminal which the corresponding electronic tag is bound to, and then returning to the step (3); (5), judging whether or not the alarm is started through the warner, if yes, canceling the alarm, and returning to the step (1); if not, returning to the step (1). According to the method and system for monitoring construction intrusion of a railway station yard, position monitoring of on-site construction workers, transportation vehicles, machinery and equipment and travelling tracks of a railway line can be achieved, the alarm is raised when intrusion behavior exists, and the safety distance between each entity and the dangerous area is guaranteed, so that the occurrence of collision accidents is reduced.

The present invention relates to scaffold safety apparatuses that allow a construction worker to safely tie-off while erecting a scaffold. The present invention allows the worker to move across one or more scaffold sections without having to disengage the safety line. In one embodiment, the safety apparatus (e.g. safety device or safety mount) includes two offset elongated members disposed in essentially parallel directions, wherein at least one of these two elongated members has a device that engages a safety line. The safety apparatus also has a connector that connects one elongated member to the other elongated member, and an attachment for securing at least one elongated member to the scaffold. The present invention additionally pertains to a scaffold safety system that includes one or more safety apparatuses, and a safety line; safety scaffolds, kits and methods for using same.

The invention discloses a strong adhesive. According to the invention, a high-molecular synthesized latex with high adhesion, a special hydraulic coagulant powder and a plurality of auxiliary agents are prepared according to a scientific and reasonable formula, such that strong adhesive is obtained. The strong adhesive is advantaged in simple construction technology, high adhesive performance with media such as cement mortar, concrete, stones, and ceramic materials, fast adhesion and solidification, small linear shrinkage, fire retardance, and no sagging when applied vertically. When the strong adhesive is contacted for a long time, the skin of a construction worker is not harmed. The strong adhesive provides substantial effects in reducing the shipped weight of ship materials, improving construction performances, and protecting the health of construction workers. The strong adhesive is suitable to be used in pavements of ceramic decorative materials in damp cabins such as kitchens, catering rooms and toilets in ship superstructures. The strong adhesive is also suitable for civil buildings.

The invention discloses a power cable pay-off device, comprising a frame, a first support rack, a second support rack, a third support rack, a cable drum, a tensioning wheel set, a wire passing shaftand a walking wheel; the first support rack, the second support rack and the third support rack are orderly fixed on the frame; the cable drum is connected onto the first support rack in a rotating manner through a rotating shaft, the tensioning wheel set is connected onto the second support rack in a rotating manner, the wire passing shaft is connected to the third support rack in a rotating manner, and the walking wheel is arranged below the frame; the third support rack includes a supporting plate fixed on the frame, two side plates fixed on the supporting board, a central shaft fixedly connected between the two side plates, sensor probes arranged inside the side plates, and a counter disposed on the frame and connected with the sensor probes. The power cable pay-off device is characterized by simple structure, convenient operation and reliable operation; the power cable pay-off device can be widely applied in power cable laying operation, cable pay-off construction can be greatly facilitated, construction efficiency can be effectively improved, and labor intensity of construction workers can be lowered.

A layout tool is provided for anchoring a layout line, such as a chalk line, in relation to a piece of construction material. The tool (100) generally includes a top plate (102) and a depending plate (106). Angular markings (104) are provided on the top plate (102) to indicate angles, pitches, or the like. The tool (100) further includes an anchor post (110), a spike (108), and a window or opening (112). A construction worker can align the tool (100) with a mark on the construction material by viewing the mark through the opening (112). The worker can strike the plate (106) so that the spike (108) penetrates a side surface of the construction material to secure the tool (100) in the desired position. A chalk line can then be attached to the post (110) and extended a desired length across the construction material in a desired angular orientation by using the markings (104). The chalk line can then be snapped against the construction material to provide a desired layout chalk line.

The present invention pertains generally to marking and / or measuring surfaces adjacent to the curved and / or off angle object's surface, positioned perpendicularly to the working surface or positioned on the same surface plane as the object's surface. Particularly, the present invention should and / or will be useful for the hardwood / laminate / parquet / engineering flooring installers and / or any kind of residential and / or commercial construction workers and / or for amateur performers. As the level of difficulty during the wood flooring installation around curved and / or off angle surfaces arises, and there are limited number of workers who can perform such trade, the TOOL, METHOD AND MARKING SYSTEM, will enable anyone who is familiar with the trade to perform the complicated assignment in a shorter period of time and without waste of material; moreover, it will allow performers to acquire the craftsmanship results.

The invention belongs to the technical field of high-temperature gas-cooled reactor control rod system overhaul, and particularly relates to a high-temperature reactor control rod system overhaul device and technology based on ergonomics. The device comprises an atmosphere isolation main cabin, a transition cabin, an overhaul platform and an aisle, wherein the atmosphere isolation main cabin and the transition cabin are controlled to be communicated or isolated by a door II which can be automatically opened and closed; the upper end of the atmosphere isolation main cabin is fixed on the transition cabin, and the lower end is tightly held and sealed with a shielding seal barrel of a control rod drive mechanism through a seal ring; the transition cabin is supported and fixed on an upper sealhead of a pressure vessel by support legs; the overhaul platform is fixed on the supporting legs, and the aisle provides access for construction workers from the 28m platform to the transition cabin.In the overhaul process, the device and the technology not only ensure that atmosphere in the pressure vessel does not leak out, but also ensure that the construction workers do not directly enter orleave the helium environment.

The invention discloses dedicated integration tools of casing pipe dislocation horizontal well correction and repair. The structure comprises a bottom expansion work room, an expansion combination sealing device, a propelling hydraulic cylinder device and a top anchoring device from top to down in sequence, and the bottom expansion work room, the expansion combination sealing device, the propelling hydraulic cylinder device and the top anchoring device are connected. A dislocated casing pipe in a horizontal section of a horizontal well can be corrected and repaired, the shortcoming that an existing dislocated casing pipe in a horizontal section of a horizontal well can not be corrected and repaired effectively is overcome, some abandoned wells and dried-up wells are revived, oil well yield is improved, service life of oil wells is prolonged, and input-output ratio of development cost is improved. The casing pipe dislocation horizontal well correction and repair method and dedicated integration tools of the casing pipe dislocation horizontal well correction and repair is characterized in that two processes of correction and casing pipe repair are combined. The casing pipe dislocation horizontal well correction and repair method and dedicated integration tools of the casing pipe dislocation horizontal well correction and repair omits a process of fixing bottom dislocation casing pipes, avoids secondary pollution of an oil layer, has simple construction process, reduces requirements for construction workers, and is beneficial to popularizing.

The invention relates to a steel bar part welding and positioning device for building construction so as to solve the problems that in the welding process of steel bar electroslag pressure welding, a device is frequently disassembled, different-diameter steel bars are not coaxial after being installed and clamped, and the quality problem after steel bar welding is caused by operation of building workers during pressurizing and upsetting. The steel bar part welding and positioning device comprises a fixing rod with the axis vertically arranged, a first arc-shaped frame and a second arc-shaped frame are connected to the fixing rod, a first centering and clamping mechanism, a welding distance adjusting mechanism and a control system are arranged on the first arc-shaped frame, a second centering and clamping mechanism is arranged on the second arc-shaped frame, and a conductive agent box opening and closing mechanism is arranged on the fixing rod. By adjusting the welding distance adjusting mechanism, the problem that the welding distances of steel bars with different diameters are different is solved, a motor rotating speed switch is adjusted, the pressurizing and upsetting time of the steel bars with different diameters is adjusted, and in the pressurizing and upsetting process, the steel bar welding quality problem caused by the operation problem of workers is effectively avoided.

The invention discloses a method for draining accumulated floor water during super high-rise building construction, and an apparatus thereof. The method comprises the following steps: building a water pool at the mouth of a construction water feeding pipe of each of floors, arranging a water draining standpipe connected with a water pool on a lower layer floor at the bottom of the water pool, and draining water leaked by the feeding pipes to a bottom waterway through the water drainage ditch layer by layer; setting a group of floor drain at the edges of floor slabs of each of the floor in an interval manner, connecting the floor drain with a water draining flat pipe below the floor slab, and connecting the water draining flat pipe with the water draining standpipe; and draining accumulated water in the construction process or rainwater to the bottom water drainage ditch through the floor drain layer by layer. Accumulated water generated by the floor during the super high-rise building construction or generated due to rain fall can be timely and orderly discharged from a construction site through the method and the apparatus without overturning the accumulated water out of the floor by directly utilizing a trolley through manpower drainage. The method and the apparatus have no influences on below construction workers, passing pedestrians and passing vehicles, are in favor of the onsite civilized construction, and can reduce the drainage cost.

The present invention discloses a lipped tray, intended for use on scaffold towers and adapted to hold builders' tools in use. The tray incorporates on each of its two opposite side edge regions a means which, when the tray is in use, locates the tray between horizontally successive rails of the tower in a manner which also causes the tray to engage with one at least of those rails and be supported, in use, by each of them.

The invention relates to welding equipment, in particular to concrete reinforcement frame welding equipment. The concrete reinforcement frame welding equipment can relieve the labor intensity of building workers. The concrete reinforcement frame welding equipment comprises a bottom plate, and the two sides of the top of the bottom plate are in bolt connection with guide rods, first supporting plates and second supporting plates correspondingly; the guide rods are located between the first supporting plates on the two sides and the second supporting plates on the two sides; and the first supporting plates and the second supporting plates are fixedly connected. According to the concrete reinforcement frame welding equipment, rebars can be automatically moved through a moving assembly and welded through a spot welding assembly, manual operation is reduced, and accordingly, the labor intensity of the building workers can be relieved; and a wedge-shaped rod can be pushed to move downwards through a special-shaped rod, ratchets are not stuck by the wedge-shaped rod any more, thus, the building workers do not need to manually pull the wedge-shaped rod downwards, and the operation difficulty is lowered.

A pencil cap is described, as a lightweight baseball style cap having a crown and a bill and a 2-inch by 4-inch strip of reclosable fastener hook material attached to the side of the crown and a separate 1-inch by 0.75 elastic style reclosable fastener loop material sleeve. The positioning of the reclosable fastener hook material strip is 1.5 inches above the bottom ridgeline and located on either the left or right side of the crown to accommodate left hand or right hand use. The reclosable fastener hook material strip is used as a contact point to attach the reclosable fastener elastic style loop material sleeve. The sleeve is affixed around a standard carpenter pencil. The pencil cap with the reclosable fastener strip and reclosable fastener sleeve is used for convenient external storage and location of the carpenter pencil for use by carpenters, painters, plumbers, construction workers, draftsmen and the like.

The invention relates to a reinforcement cutting machine, in particular to a fixed building reinforcement cutting machine. The technical problem to be solved is how to provide the fixed building reinforcement cutting machine with more power saving and high safety. The fixed building reinforcement cutting machine comprises a mounting frame, an arc beam, a first handle, a second handle and the like;the left side of the mounting frame is connected with the arc beam; the left part of the arc beam is fixedly connected with the first handle; and the back side of the mounting frame is connected withthe second handle. Reinforcements can be clamped through a fixing device, so that building workers can save more power, and the safety is high; through an anti-falling device, the reinforcements canbe prevented from falling after cutting, so that the reinforcements can be prevented from smashing other persons or objects; through a reinforcement deviation device, the friction between the reinforcements and a grinding wheel can be prevented, so that the service life of the grinding wheel can be prolonged; and through a protecting device, the building workers can be prevented from touching thegrinding wheel.

A three-component, protective headgear or helmet is provided with a battery-powered LED head lamp, which may be used by construction workers, search and rescue persons, cyclists, police, fireman, and the like. The battery may be replaceable or rechargeable and has long-term, uniform output characteristics driven by unique circuitry.

The invention aims to provide a steel strip reinforced polyethylene helically-corrugated drain pipe foundation structure and a construction method thereof. According to the technical scheme, the foundation structure is composed of a groove, a water-proof geomembrane, laying layers, poured water, a vibrating needle and a drain pipe, wherein two drain ditches are formed in the bottom of the groove; the laying layers include the foundation laying layer and the stable laying layer; and the drain pipe is composed of filling strips, an outer adhesive layer, outer steel strips, an inner adhesive layer, inner steel strips and hot melting strips. Steel strip reinforced polyethylene helically-corrugated pipes are combined and welded in a hot extrusion mode through the hot melting strips at pipeline connecting ends, so that joints of the two pipes are tightly bonded, jointing seams of pipe openings have certain strength, and then the sealing performance of pipeline connection is reinforced; and during pipeline laying, water pouring and vibration are performed on a sand foundation layer in the groove for pipeline laying, gaps in the sand foundation layer are reduced, and then the sand foundation layer is more compact, so that the number of construction workers, machines and tools is reduced, the operation cost is reduced, and the efficiency is improved.

The invention discloses an automatic turnover device and turnover method for a unit curtain wall, and belongs to the technical field of unit curtain walls. The automatic turnover device comprises a placing table, the bottom of the placing table is connected with four rollers through supporting columns, and the left side of the placing table extends to the exteriors of the rollers. According to the device and the method, by means of a push plate, a lifting plate and a telescopic sliding rail, the end of the curtain wall is lifted, and meanwhile, the curtain wall is pushed to the left side till the curtain wall is pushed to the vertical state, and manual operation is reduced in the whole process; by means of the left side of the containing table, the curtain wall can be moved to the outer side of a building, and workers do not need to be located on the edge of the building so that workers can be in a safe working environment, and the safety of building workers is guaranteed; and after the curtain wall is hoisted by hoisting equipment, a second sliding rail and a first sliding rail can be shrunk into a storage barrel again under the action of an air spring, and manual return operation is not needed, so that on one hand, manual operation is reduced, and on the other hand, follow-up turnover operation for the curtain wall is facilitated.

The invention belongs to the technical field of building tools, and particularly relates to a scaffold. The scaffold comprises two supporting frames which correspond to each other, wherein supportingrods are fixedly connected to the two supporting frames; frame plates are fixedly connected to the supporting rods of the supporting frames on the opposite sides of the two supporting frames through bolts; each supporting frame comprises two supporting columns; each supporting column comprises an upper column and a lower column; a first sliding groove is formed in the inner wall of each upper column; and a first sliding rod is fixedly connected to the upper surface of each lower column. The scaffold is mainly used for solving the problems that when a wall is built at present, the used scaffoldshakes when being installed on the uneven ground, although building workers can use bricks for bedding, potential safety hazards generated by the shaking scaffold cannot be avoided, meanwhile, when the scaffold shakes, the building workers climb the scaffold, the scaffold is prone to rolling over, and therefore the potential safety hazards are increased.

The invention discloses a concrete mixing process which comprises the following steps: preparing equipment of selecting a parking position of a transportation bottom frame according to a concrete pouring position, mounting an uniform-speed loading mechanism to a charge end of a mixing stirring barrel, carrying a water storage tank beside the transportation bottom frame, connecting each pipeline tothe outer side of the water storage tank, and erecting a concrete transportation pipeline at the tail end of a water discharge box. Dust generated while a cement bag hits against a conveying frame iscollected by a collecting inclined box, dust generated in a cement bag opening and pouring process is collected by a collecting flat box, and dust-containing gas flow is introduced to a position below a liquid surface in the water storage tank through a gas exhausting tube and a gas guide tube; a water body in the water storage tank blocks dust inside the water storage tank, so that dust generated in a cement adding process is prevented from diffusing into surrounding air or being breathed in by a building worker, and therefore, environment friendliness of a concrete mixing device is improved.

The invention discloses a fabricated building management method and system based on BIM and cloud service. The invention relates to the technical field of fabricated buildings. The key points of the technical scheme are as follows: the method comprises the following steps: establishing database, and inputting a construction scheme of a previous fabricated building into a database; decomposing anassembly type building scheme into sub-schemes, generating a three-dimensional building model according to design requirements of a target building through BIM, decomposing the three-dimensional building model into sub-schemes, matching the sub-schemes of the three-dimensional building model with the sub-schemes in a database to obtain the matched assembly type building scheme, and reading the matched assembly type building scheme to construction workers step by step. The technical problem that workers need to be familiar with drawings and are difficult to know is solved, and the constructiondifficulty is reduced through an automatic generation scheme.

The present invention relates to a bundle of nails or screws whose pointed tips are secured in close proximity to each other by an adhesive or adhesive tape whereby each outer nail or screw from one end of the bundle can be manually separated from the bundle and subsequently readily driven or screwed into a work piece. Furthermore, any injurious effect to the carpenter or construction worker's hand is considerably reduced when obtaining the bundle of nails or screws from the hardware store or when handling and using the nails or screws at the work site.

The invention discloses an assembly type steel bar framework rapid forming lap joint structure. The structure comprises a lap joint structure body, external lap joint plates, middle lap joint frames,steel bars, a rotary shaft and locking knobs. The external lap joint plates are arranged at the upper and lower ends of the lap joint structure body, the middle lap joint frames are distributed between the two external lap joint plates at equal intervals, and the steel bars are inserted in the external lap joint plates and the middle lap joint frames. First adjusting frames are inserted in first adjusting grooves, abutting grooves are formed in the upper end faces of the first adjusting frames, the locking knobs are in threaded connection with the upper end of a first supporting frame and theupper end of a second supporting frame, and the inner ends of the locking knobs are connected with the abutting grooves. The assembly type steel bar framework rapid forming lap joint structure can quickly fix the steel bars by designing a steel bar fixing structure according to the lap joint characteristic of a reinforcement cage framework, the binding size of the reinforcement cage framework canbe adjusted, and great convenience is brought to rapid binding of a reinforcement cage for building workers.

The invention discloses an electric heating control method and system based on power line carrier communication. The method comprises the following steps that a temperature measuring device is paired with a controller, and after successful pairing, the temperature measuring device is installed in a heating space controlled by the corresponding controller for temperature measurement; the temperature measuring device collects heating space data in real time and transmits the collected real-time data to a tuner through a power line carrier module; the real-time data collected by the tuner are subjected to real-time data analysis, a control module is started / stopped according to the analysis result, and starting / stopping of the control module decides power supply to / cut off from the load. According to the method and the system, the load and temperature measurement are separated, the influence on temperature measurement caused by the heating reason of the temperature measuring device is reduced, the temperature measurement precision is improved, the installation difficulty is reduced, fool-type installation is realized, the technical requirements on construction workers are reduced, and the temperature measurement position is more flexible; in addition, due to strong current control, noise pollution caused by a common temperature controller relay is reduced at the electric box end, and meanwhile, the service life is prolonged.

The invention discloses a material transportation cart used for building construction. The material transportation cart comprises a supporting mechanism, a regulation mechanism, a storage mechanism and a drive mechanism. The regulation mechanism is installed on the supporting mechanism. The storage mechanism is installed on the regulation mechanism. The drive mechanism is installed on the storagemechanism. The supporting mechanism comprises a bottom plate. Rolling wheels are installed at the positions of the four corners of the bottom of the bottom plate correspondingly. A push plate is installed on the right side of the bottom plate. The regulation mechanism comprises a fixed plate and an electric push rod. According to the material transportation cart, through cooperation of the fixed plate, the electric push rod, a fixed shaft, a top plate, a concave shell, a connection plate, a cylinder, a scraper, a movable plate and a baffle, the material transportation cart used for building construction is obtained; when materials are transported to the destination, it is avoided that unloading needs to be manually conducted; during unloading, the situation that due to the fact that dead corners appear in a hopper, cleaning needs to be manually conducted is avoided; and the work efficiency of building workers is greatly improved, labor burdens on the workers are relieved, and great convenience is brought to users.

The invention relates to the technical field of building machinery, in particular to a grinding cutter head and a grinding machine. The grinding cutter head comprises a cutter head body, a polishing blade, first grinding slices and second grinding slices; a plurality of sawtooth-shaped bulges are arranged on the edge of the cutter head body along the circumferential direction of the cutter head body at intervals; the polishing blade is arranged at one ends, away from the cutter head body, of the sawtooth-shaped bulges and extends out relative to the sawtooth-shaped bulges; the plurality of first grinding slices are arranged on the first surface of the cutter head body along the circumferential direction of the cutter head body; the plurality of second grinding slices are arranged on the second surface of the cutter head body along the circumferential direction of the cutter head body; and the height of the second grinding slices is larger than the height of the grinding blade. According to the grinding cutter head and the grinding machine, large faulting of slab ends and explosion points can be rapidly and effectively removed, the labor intensity of building workers is reduced, andthe grinding efficiency is improved.