84results about How to "Straight lines" patented technology

A portable multiple-component articulating support apparatus for engaging, moving, orientating and manipulating a hand-operated power tool within and throughout a three-dimensional workspace. The apparatus includes a clamping device for demountable engagement with a structural element, an elongate double-link hinge member, a spacer arm having opposite ends adapted for detachable engagement and rotational communication with the clamping device and the double-link hinge member, a vertically disposed pivotably connected counterbalance arm assembly adapted for detachable engagement and rotational communication with the double-link hinge member. The counterbalance arm assembly is equipped with a gas-charged cylinder for balancing the weight of hand-operated power tools. The clamping device, spacer arm, double-link hinge and counterbalance arm assembly are interconnected with removable hinge pins. A tool-mounting bracket is provided for gripping engaging a power tool. The tool-mounting bracket pivotably engages a power tool-bearing member which slidingly and rotatably communicates with the counterbalance arm assembly.

The invention discloses a construction technology for prefabricating a corrugated steel web PC I beam into a combined box girder bridge. Each combined box girder segment in a combined box girder of the combined box girder bridge is formed by connecting two corrugated steel web PC I beams. The construction technology comprises the following steps: Step I, prefabricating the corrugated steel web PC I beams: pedestal prefabricating construction, installation of a soffit formwork, installation of a reinforcement cage in a bottom plate, installation of a corrugated pipe in the bottom plate, installation of a positioning bracket and erection of a side formwork, installation of a corrugated steel web, pouring of concrete on the bottom plate, installation of a top plate molding template, installation of the reinforcement cage in a top plate, pouring of concrete on the top plate, and stretch-drawing of a cable in the bottom plate; Step II, displacement and erection of the corrugated steel web PC I beams; Step III, lengthways wet joint construction; Step IV, stretch-drawing of a cable out of the bottom plate and system conversion. According to the invention, the processing steps are simple, the design is reasonable, the implementation is convenient, the construction period is short, the construction quality is high, pedestal prefabricating and the positioning bracket are combined to complete bridge prefabrication, and the construction quality of the combined box girder bridge can be effectively ensured.

An anchor for embedment into a concrete component, has a head via which load is applied to the anchor in use and an anchoring formation provided by at least one leg extending from the head and profiled along an edge thereof so as to lock into the surrounding concrete. The profile is formed by a series of longitudinally spaced formations each of generally saw-toothed shape with a leading edge of each formation inclining towards the head such that on application of a pulling load to the head the leg will lock tighter into the concrete with increasing load. In one form the anchor is a lifting anchor and having a pair of such legs extending from the head which is adapted for releasable engagement with lifting equipment, and the profile is formed along an inner edge of each of the legs. In an alternative form the anchor is a plate anchor in which the head of the anchor is formed by a plate and a set of such legs extends from each of two opposite sides of the plate transversely to the plane of the plate. Each set of legs comprises at least two parallel legs and the profile is formed along an inner edge of each of said legs.

A portable multiple-component articulating support apparatus for engaging, moving, orientating and manipulating a hand-operated power tool within and throughout a three-dimensional workspace. The apparatus includes a clamping device for demountable engagement with a structural element, one or more elongate double-axis hinge member, one or more spacer elements having opposite ends adapted for detachable engagement and rotational communication with the clamping device and the double-axis hinge member, a vertically disposed pivotably connected counterbalance arm assembly adapted for detachable engagement and rotational communication with the double-axis hinge member. The counterbalance arm assembly is equipped with a gas-charged cylinder for balancing the weight of hand-operated power tools. The clamping device, a counterbalance element, one or more spacer elements and one or more double-axis hinge elements alternating therebetween, are interconnected with removable hinge pins. A tool-mounting bracket is provided for grippingly engaging a power tool. The tool-mounting bracket pivotably engages a power tool-bearing member which slidingly and rotatably communicates with the counterbalance arm assembly.

The invention provides a composite building template compound system. The composite building template compound system comprises a stair template and a closed type internal corner template. The stair template comprises blocking plates, pinking teeth, stair side plates, stair treads and stair risers. The stair treads and the stair risers are arranged sequentially from bottom to top in a staggered mode to form steps. The steps are installed between the stair side plates and the inner side faces of the pinking teeth. The outer side faces of the pinking teeth are arranged on a wall. The blocking plates are arranged at the bottoms of the pinking teeth, the stair side plates and the steps. A closed-opening type pouring space is formed among the blocking plates, the pinking teeth, the stair side plates, the stair treads and the stair risers. The upper end faces of the stair treads are provided with feed inlets. The closed type internal corner template comprises first end plates and first side plates which are connected mutually to form a cuboid. Any two adjacent first side plates are provided with a connection part and an operation part. The operation parts are connected in a butt joint mode in the intersections of the first side plates. The connection parts are provided with first connection holes. The operation parts are provided with operation holes. The composite building template compound system is a complete set of system.

The invention discloses a low-caffeine black tea with flower fragrance and a production method of the low-caffeine black tea, belongs to the technical field of tea processing and aims to provide a production method of the low-caffeine black tea. The production method of the low-caffeine black tea, provided by the invention, comprises the steps of fresh tea leaf rocking, rolling, fermenting, arranging-drying and fragrance extracting, wherein the rocked fresh tea leaves are rolled, fermented, arranged and dried and subjected to fragrance extraction after being subjected to high temperature desiccation.

The invention discloses a prefabricating construction process for a corrugated steel web prestressed concrete I-shaped beam. The process comprises the following steps: 101, constructing a prefabricated pedestal; 102, mounting a bottom die plate; 103, mounting a reinforcement framework in a bottom plate; 104, mounting a corrugated pipe in the bottom plate; 105, mounting a positioning bracket and supporting a side die plate, wherein the positioning bracket comprises a supporting frame, and a plurality of positioning rods for positioning a corrugated steel web; 106, mounting the corrugated steel web, namely, mounting the corrugated steel web is mounted above the reinforcement framework in the bottom plate, and positioning through the positioning bracket; 107, pouring the concrete of the bottom plate; 108, mounting a top plate molding die plate; 109, mounting the reinforcement framework in a top plate; 110, pouring the concrete of the top plate; 111, stretching an inner cable in a bottom plate body. The prefabricating construction process is simple in steps, reasonable in design, convenient to implement, short in construction period, and high in construction quality; the prefabricated pedestal is matched with the positioning bracket to finish the prefabricating of a beam body, and the quality of a prefabricated beam body can be effectively ensured.

The invention discloses a kerbstone mechanical-hoisting and seam-spacing method-based construction method, a hoisting tool and a seam-spacing tool. The kerbstone mechanical-hoisting and seam-spacing method-based construction method comprises the following steps of 1, preparing construction, 2, carrying out measurement and line laying, 3, bracing 10-20m of a line and determining a kerbstone directional line and elevation line, 4, arranging a 1: 2.5-3 cement mortar cushion layer having thickness of 3cm, 5, installing first kerbstone, 6, arranging the seam-spacing tool, 7, hoisting kerbstone to a designated position by the hoisting tool, 8, carrying out complex line stabilizing, 9, carrying out self-inspection checking, 10, pouring back concrete of the kerbstone, 11,maintening the back concrete and 12, carrying out inspection and acceptance by a supervisor. The method provided by the invention has strong operationality and simple installation method with low technical difficulty, reduces kerbstone manual-carrying labor intensity, improves efficiency, saves a labor cost and has economic benefits better than those of the traditional construction method.

The invention relates to a precast fence plate dam reinforcing method. The method comprises the following steps of: firstly precasting a fence plate, and conserving the precast fence plate until 75% of the design strength standard value is achieved; paving a layer stone blocks on a dam surface to be constructed, manuacturing a screed strip underlayer on the stone blocks, conveying the precast fence plate to a to-be-reinforced dam, manually regulating the position so that the fence plate is placed on the screed strip underlayer, and performing edge beam form erecting after placement is finished; then binding edge beam steel bars, pouring concretes, vibrating, trowelling, conserving until the dam is qualified, and then dismounting a template, thus finishing dam reinforcing construction. The fence plate dam reinforcing construction method is high in efficiency, low in cost, easy for formation of multiple parallel working surfaces and less in influence of tide water on construction; and furthermore, fence plates are connected by virtue of the steel bars and are poured by the concretes, a molded dam reinforcing structure has two advantages of reliable protective property and good wave eliminating effect, and is less in wave overtopping amount and long in service life.

The invention discloses a cloth fixing and line-drawing mechanism, which comprises a rack. An upper support frame and a placement block are fixed on the top surface of the roof of the rack. There is alower inner cavity in the middle of the bottom surface of the placement block. The side wall of the lower inner cavity is connected with a suction pipe, and the suction pipe is communicated with thelower inner cavity. An installation groove is formed in the top surface of the placement block, and a porous plate is inserted into the installation groove in a sleeved manner. Multiple suction through holes are formed in the bottom surface of the installation groove, and the suction through holes are communicated with the lower inner cavity. The porous plate covers all the suction through holes.Cloth to be processed is placed on the top surface of the porous plate. Connecting plates are respectively fixed on the left and right sides of the bottom surface of the roof of the upper support frame (11). The two ends of a transverse screw are hinged to the two connecting plates through bearings. A main mobile motor is fixed on the outer wall of one connecting plate, and the output shaft of themain mobile motor is a spline shaft. The cloth fixing and line-drawing mechanism can absorb and fix the cloth to be processed and then draw a line automatically. The drawn line is straight, the effect is good, and the efficiency is high.

The invention discloses a large-span girder bridge box girder full-section one-time suspension pouring construction method, and belongs to the technical field of bridge construction. The large-span girder bridge box girder full-section one-time suspension pouring construction method comprises the steps of mounting of a hanging basket in place; hanging basket formwork erecting; steel bar binding, prestressed reinforcement and pipeline mounting; inner formwork mounting and reinforcing; concrete warehousing and distributing system mounting; symmetrical pouring of girder-segment concrete cantilevers; curing and reinforcing waiting; prestressing strand penetrating and tension, and pipeline grouting; and hanging basket disengaging, forward moving and taking place. According to the large-span girder bridge box girder full-section one-time suspension pouring construction method, the disadvantages that as for a previous fractional and layered pouring technology, interlayer construction joints need to be formed, and the construction period is excessive long are overcome, and the construction quality of a box girder is ensured.

The invention relates to a universal sweeping robot sweeping path planning method comprising the following steps: (1) starting, pose control based on a closed loop of a robot; (2) finding objects witha laser reflection property; (3) extracting an area between the laser reflection substances and partitioning the area; (4) carrying out cleaning on each partition in sequence; (5) checking whether all the partitions are cleaned or not, entering the next step if yes, otherwise returning to the step (2); and (6) returning a charging point. The method in the invention has the beneficial effects thatin the solution of the invention, a mode of executing a cleaning task while collecting environment information is adopted in comparison with the mode of some sweeping robot products on the market that a target environment is traversed in advance so as to collect the environment information and then the cleaning task is executed.

The invention provides a curb prefabricating assembling side mold. The curb prefabricating assembling side mold is in a strip shape overall, and the cross section of the side mold is in an L shape. The curb prefabricating assembling side mold comprises a left portion, a lower portion and a right portion, wherein the left portion, the lower portion and the right portion are interconnected. A groovein the length direction is formed among the left portion, the lower portion and the right portion. The groove is in the middle and used for accommodating a curb. The left portion of the side mold ishigher than the right portion of the side mold. The inner side face of the left portion of the side mold is adopted as the rear backrest of the curb. The upper surface of the right portion of the sidemold is used for placing a square batten stone. The right portion of the side mold, the square batten stone and the curb are adopted as a road asphalt side mold simultaneously. The invention furtherrelates to a construction technology for the prefabricating assembling side mold. According to the curb prefabricating assembling side mold, time for pouring the rear backrest of the curb is saved; the curb is integrally prefabricated and molded in a factory; the problem of increasing of the cost and working procedures caused by secondary construction of the rear backrest of the curb in the laterperiod is solved; and the integral stability of the curb is improved.

The invention provides a three-way adjustable anti-seismic system of a bridge crossing a fracture zone. The three-way adjustable anti-seismic system of the bridge crossing the fracture zone is formedby adopting a dredging type anti-seismic measure and a blocking type anti-seismic measure, and arranging anti-seismic structures in the vertical direction, the longitudinal direction and the transverse direction of the bridge on the basis of each anti-seismic measure. According to the three-way adjustable anti-seismic system of the bridge crossing the fracture zone, the three-dimensional anti-seismic structures are adopted, so that the acceleration and the inter layer displacement of an upper structure during an earthquake can be reduced to a great extent, the earthquake response of the upperstructure is greatly reduced, the effect caused by earthquake force is dispersed and reduced, and the functions of reducing casualties and rapidly recovering the passage of vehicles are achieved.

The invention discloses a cashmere filling device for a highquality hand-knitted down jacket. The device comprises a working platform, fixed support rods are fixedly connected with a bottom surface ofthe working platform and thepositionwith a 90-degree included angle, a sliding clamping slot is formedin the top surface of the working platform, a fixed bottom plate is slidably connected to one side of the surface of the clamping slot, the top surface of the fixed bottom plate is provided with a cashmere filling device body, a knit fabric is lainonthe position below the cashmere filling devicebody and the top surface of the fixed bottom plate, and fixing holes penetrate throughthe surfaces with the 90-degree included angles of the top and bottom of the fixed bottom plate. The device relates to the technical field of knitting down jacket production. The device achieves the purpose of making down filling uniform, on the basis of being beneficial to improving the overall production efficiency, the shapes and specifications of obtained down filling lattices can be kept consistent, which is beneficial to ensuring the uniform down filling, and the overall quality of products is improved.

A continuous beam curtain board construction technology comprises the following steps: arranging and fixing a template bottom template; binding steel bars, and arranging an embedded part; arranging a side die; arranging a foam plate according to a foam plate installation instruction; flattening and straightening the foam plate, and reinforcing and firming the foam plate; pouring concrete; carrying out demolding curing on concrete; and storing: transporting a curtain board to a field according to installation schedule requirements before installing construction, and temporarily storing the transported curtain board for installation. The construction technology has the advantages of simple operation, cheap material and cost reduction. A continuous beam can be effectively smoothly connected with curtain boards at two sides of the continuous beam, so integral linear straightness is guaranteed. The height of a curtain board bearing platform of the continuous beam curtain board is increased in advance, so linear straightness of the continuous beam curtain board and the simply supported beam curtain boards at two sides in the installation process is guaranteed, thereby resource waste and construction period prolongation caused by unable normal use of curtain boards produced as designed on the continuous beam are avoided.