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459results about How to "Guaranteed force" patented technology

Prestressed hollow composite slab

The invention relates to a prestressed hollow composite slab and a manufacturing method thereof, and belongs to the field of normal building construction. The composite slab comprises prefabricated pieces (1) and composite layers (2). Thickness of a bottom plate (3) of each prefabricated piece (1) is greater than or equal to 35 mm and less than or equal to 60 mm, prestressed steel wires (4) in the bottom plate are located at the upper parts of transversal steel bars (5), and the length of each prestressed steel wire (4) and each transversal steel bar (5) extending out of the corresponding bottom plate (3) is greater than or equal to 50 mm; the width of each prefabricated piece is greater than or equal to 1500 mm, light-weight material filling pieces (6) are arranged at the upper part of each prefabricated piece (1); the heights of concrete solid ribs (7) between adjacent filling pieces are greater than or equal to 50 mm; the transversal steel bars (5) between adjacent prefabricated pieces (1) are overlaid in a joint area (8), upper part steel bars (10) of the composite slab are bound, composite layer concrete is poured, and the composite slab is formed. According to the prestressed hollow composite slab and the manufacturing method thereof, the self-weight of the composite slab is light, the stiffness in the longitudinal direction and the transversal direction is high, the application range is large, and transportation and installation are convenient. The prestressed hollow composite slab and the manufacturing method thereof have good economic efficiency and applicability, and play a role on promoting the development of building technology.
Owner:徐焱

Rapid culture method for mixed culture denitrification desulphurization granule sludge

The invention relates to a rapid culture method for granule sludge and provides a rapid culture method for mixed culture denitrification desulphurization granule sludge. The rapid culture method provided by the invention overcomes the problems of a long period, high operation cost and poor effects of a mixed culture denitrification granule sludge process due to introduction of harmful microbes in culture of mixed culture denitrification desulphurization granule sludge in the prior art. According to the invention, since activated sludge is used as inoculation sludge and granulation of the sludge is directly realized under the condition of addition of sodium chloride, the tedious steps of culture of sulfate reduced granule sludge at first and domestication of the mixed culture denitrification desulphurization granule sludge next are omitted, culture time for the granule sludge is shortened, and operation cost is saved; moreover, usage of methane-producing sludge as the inoculation sludge and introduction of harmful microbes are prevented, and high-efficiency operation efficacy of the denitrification desulphurization granule sludge is guaranteed; meanwhile, elemental sulfur is recovered, and reclamation of wastes is realized.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Cab side window for rail transit locomotive

The invention provides a cab side window for a rail transit locomotive. The cab side window comprises a bottom cross beam, a side window fixing frame, a glass supporting beam, a glass fixing frame, side window glass, a crank-connecting rod-sliding block mechanism and sliding rails. The length direction of the sliding rails is vertically arranged, the sliding rails are located in the center of the side window fixing frame in the width direction, the bottom ends of the sliding rails are fixedly connected to the bottom cross beam, and the top ends of the sliding rails are directly or indirectly connected to the side wall of a locomotive cab fixedly. A sliding block matched with the sliding rails is connected with the glass supporting beam. One end of a crank-connecting rod assembly is fixedly connected to the side window fixing frame, and the other end of the crank-connecting rod assembly and the sliding block are connected to form the crank-connecting rod-sliding block mechanism so as to support the sliding block to vertically move up and down in the sliding rails along with the side window glass. An existing crank-connecting rod mechanism which is eccentrically stressed is replaced with the crank-connecting rod-sliding block mechanism which is centrally stressed, the improved side window is balanced in stress, abrasion to an aluminum alloy window frame is reduced in the opening and closing processes of the side window, and the normal service life of the side window is prolonged.
Owner:HUNAN LIANCHENG TRACK EQUIP CO LTD

Two-hand mould PVC (polyvinyl chloride) glove production equipment

The invention discloses two-hand mould PVC (polyvinyl chloride) glove production equipment. The two-hand mould PVC glove production equipment comprises a hand mould railway line and a glove production line, wherein the hand mould railway line is arranged above the glove production line, and the hand mould railway line is a two-hand mould railway line and is composed of a two-hand mould main railway and a two-hand mould subsidiary railway; the two-hand mould main railway is an open type U-shaped railway, the two-hand mould subsidiary railway is a single-side double-layer rail, the glove production line is successively provided with a pre-dropping device, demoulding devices of No.1 and No.2 lines, counting machines of No.1 and No.2 lines, a mould-cleaning device, a PVC material groove, a PVC recovering groove, a PVC drip-drooping section, a PVC main oven, a smoke collecting section, a PU material groove, a PU drip-drooping recovering groove, a PU oven, a hemming of No.2 line, an edge-shaping machine, a hemming of No.1 line and an edge-shaping machine, wherein the smoke collecting section is respectively communicated with the PVC main oven and the PU oven, and a production line balance-weight system is arranged between the smoke collecting section and the PU material groove. Compared with the traditional single-hand mould PVC production line, the two-hand mould PVC glove production equipment provided by the invention has the advantages that the production efficiency is improved, and the energy consumption is effectively reduced.
Owner:安徽英科医疗用品有限公司

Visual positioning method of large-size material and carrying robot

The invention discloses a visual positioning method of a large-size material and a carrying robot, and relates to the technical field of machine vision. The visual positioning method comprises the following steps of acquiring a depth image of a material through a depth camera; carrying out analyzing to obtain coordinates of each point on the depth image in a three-dimensional coordinate system; and identifying a material plane according to the coordinates of all points, and calculating the center coordinates of the plane of the material. The depth image of the material is acquired at the viewing angle of the carrying robot through the depth camera, the plane of the material can be identified through image processing and analysis, and the coordinates of the geometric center of the materialin the three-dimensional coordinate system can be calculated, so that visual guidance is provided for the carrying robot, the carrying robot can grab the material according to the center point of thematerial, and the material is guaranteed to be uniformly stressed, balanced and the like in the carrying process. In this way, the carrying robot can be free of the auxiliary of constructors, materialconveying is independently completed, and potential safety hazards are eliminated.
Owner:GUANGDONG BOZHILIN ROBOT CO LTD

Cable simulation device and cable simulation method in ship mooring physical model test

ActiveCN104155131ALower test experience requirementsHighly theoreticalStructural/machines measurementEducational modelsPull forcePhysical model
The invention discloses a cable simulation device and a cable simulation method in a ship mooring physical model test. The cable simulation device comprises a box body, wherein tracks, spring systems, as well as a fixed plate and a tension plate which are horizontally arranged in parallel up and down, are arranged inside the box body; the tension plate can slide up and down along the tracks; the spring systems comprise a plurality of springs and connection pull rods which are different in lengths; the cable simulation method comprises the following steps: according to stress deformation characteristics of a cable to be simulated, the length of each spring and the length of each pull rod are calculated and determined, so as to constitute the spring systems and to keep connection with the tension plate; graded pulling forces are exerted; corresponding elongation of the tension plate is measured; through the spring systems with various lengths, nonlinear tension-elongation relation of the cable is simulated and the tension-elongation relation curves are drawn; the tension-elongation relation curves are compared with the stress deformation theoretical curves of the simulated cable; errors of the test results are checked. The cable simulation device provided by the invention solves technical problem of nonlinear load and deformation relation simulation of the cable in a ship mooring physical model test; the operability is good; the accuracy and the efficiency are high; the experimental effects are favorable.
Owner:嘉兴快闪新材料有限公司

Energy dissipating and shock absorbing system having dense reinforcement structure

The invention discloses an energy dissipating and shock absorbing system having a dense reinforcement structure, which comprises a concealed frame consisting of ending columns, connecting columns and a concealed beam. A floor slab is connected to the concealed beam horizontally, a part of the concealed frame is provided with dense reinforcement composite wall boards with low yield point, and the other part of the concealed frame is provided with light dense reinforcement composite wall boards filled with bricks. The invention provides another energy dissipating and shock absorbing system having a dense reinforcement structure, which comprises a concealed frame consisting of ending columns, connecting columns and a concealed beam, floor slabs are horizontally connected to the concealed beam, and dense reinforcement composite wall boards with low yield points are arranged in the concealed frame fully. Besides, the dense reinforcement composite wall boards with low yield points comprises multiple reinforced beams and reinforced columns which form rectangular grid structures, and steel plates with low yield point are embedded into the grids. The energy dissipating and shock absorbing system having the dense reinforcement structure is simple in structure, high in energy dissipation, stable in in energy dissipation performance and fine in shock absorption.
Owner:XIAN UNIV OF TECH

Steel structure beam column mortise-and-tenon-joint-type fast installing joint and installing method thereof

InactiveCN107476436ASmall section widthRealize self-locking connectionBuilding constructionsMortise and tenonJoints types
The invention discloses a beam-column mortise-and-mortise quick-installation joint of a steel structure and an installation method thereof. The joint comprises a steel pipe column and a steel beam. The steel pipe column is provided with a reinforcing plate, the reinforcing plate is provided with an embedded groove, and the steel beam is provided with an end plate. , the end plate is provided with an embedded tenon, which matches the embedded groove, and a self-locking bolt is provided between the second bolt hole and the first bolt hole. The self-locking bolt includes an outer bolt and an inner core bolt, and the outer bolt is provided with a The hexagonal nut is provided with an inner expansion blade at the end of the outer bolt. The installation method includes: (a) fabrication and installation of reinforcement boards; (b) fabrication and installation of end plates; (c) fabrication of outer bolts and inner core bolts; (d) self-locking connection of steel pipe columns and steel beams; (e) Manufacture of self-locking bolts; (f) tight connection of steel pipe columns and steel beams; (g) installation inspection. The present invention has the characteristics of quick positioning of node construction and high installation accuracy, clear force transmission of node connection structure, quick construction, and solves the problem that bolts in the node area are not easy to construct.
Owner:浙江中南绿建科技集团有限公司

Overline operation crane for high-speed railways

The invention relates to an overline operation crane for high-speed railways, belongs to the field of cranes and particularly relates to high-speed railway and rail transit cranes. Two transversing mechanisms including a front transversing mechanism and a back transversing mechanism are respectively erected on four supporting trolleys of a double-line rail, and are in butt joint with the crane through auxiliary supporting legs, and the crane is separated from the original rail line under action of auxiliary supporting leg jacking cylinders, and transverses to the middle of the double-line rail. The front transversing mechanism and the back transversing mechanism moves to be close to the center of the crane together with the front and back corresponding supporting trolleys by retracting effect of the auxiliary supporting legs. Until the auxiliary supporting legs are retracted completely, four crane supporting legs of the crane are unfolded, ball hinges at the tail ends of cylinders of the four crane supporting legs are disposed in ball hinge seats of longitudinal beams of the four supporting trolleys on the double-line rail, and then acting force of the crane to a single-line rail is distributed to the double-line rail successfully, so that operations including overline craning and the like can be carried out for the high-speed railways, and requirements for large-tonnage cranes during rescue and construction on bridge sections of the high-speed railways are met.
Owner:WUHAN BRIDGE INDUSTRIAL EQUIPMENT COMPANY LTD

Offshore wind power single pile-friction cone composite foundation and construction method thereof

The invention discloses an offshore wind power single pile-friction cone composite foundation and a construction method thereof. The offshore wind power single pile-friction cone composite foundationcomprises a single pile and a friction cone, wherein a rock-fill body is arranged inside the friction cone, a cemented rock-fill body shell is arranged outside the friction cone, and the cemented rock-fill body shell is obtained by grouting and cementing the rock-fill body outside the friction cone. The construction method of the offshore wind power single pile-friction cone composite foundation comprises the following steps of 1, carrying out single pile construction by using pile sinking equipment; 2, stacking graded crushed stone materials on seabed around the single pile to form the friction cone; 3, placing a grouting device on the surface of the rock-fill body outside the friction cone; and 4, conveying underwater self-protection cementing materials through the grouting device, wherein the cementing materials fill gaps of the rock-fill body outside the friction cone to form a cemented rock-fill body. The offshore wind power single pile-friction cone composite foundation has the advantages of high horizontal bearing capacity, small pile body horizontal displacement, deformation and bending moment and the like, and has the characteristics of simple construction, high adaptability to geological conditions and the like.
Owner:CHINA THREE GORGES CORPORATION

Connection construction and construction method of assembled shear wall panels and wall panels

A connection construction and a construction method of assembled shear wall panels and wall panels are provided. The wall panel comprises a concrete body and a steel framework cast in the concrete body; the steel framework comprises a set of splice assemblies arranged at evenly spaced intervals along the top of the wall panel in the length direction, bearing assemblies which are installed correspondingly to the splice assemblies at a lower end of the wall panel and a vertical through-length steel bar group which is vertically connected between the corresponding bearing assemblies and the splice assemblies. The invention designs a composite steel member for optimizing the connection nodes between the wall panels; the construction comprises splice assemblies arranged at an upper end of the wall panel and bearing assemblies correspondingly connected to a lower end of the wall panel; connecting base plates in the bearing assemblies of the upper layer wall panel are correspondingly insertedto the connecting bolts in the lower layer wall panel and the two are fastened through connecting nuts; finally, procedures such as cement mortar or gypsum blocking in seams and cavities are carriedout. The high efficiency connection of assembled shear wall is realized; the whole process is simple and quick; the connection strength is high, and it is convenient to dismantle and assemble, which is beneficial to the recycling of prefabricated components.
Owner:HEBEI INSTITUTE OF ARCHITECTURE AND CIVIL ENGINEERING

Trip structure of circuit breaker

A trip structure of a circuit breaker comprises an operating mechanism and an electromagnetic tripper, wherein the operating mechanism is in linkage with an operating handle of the circuit breaker to drive a movable contact assembly to swing and match with a static contact, the operating mechanism comprises a jump pin and a lock which are buckled and connected, an extension end is arranged on the lock and is matched with a top rod of the electromagnetic tripper, and a trigger bulge is also arranged between the lock and the movable contact assembly; and when the circuit breaker is circuit-shorted, the top rod of the electromagnetic tripper collides with the extension end of the lock, the movable contact assembly swings to push the lock via the trigger bulge by means of an electric repulsive force between a movable contact of the movable contact assembly and the static contact, and the lock and the jump pin are pushed to be unlocked jointly by the top rod of the electromagnetic tripper and the movable contact assembly. In the trip structure of the circuit breaker, provided by the invention, the circuit breaker is rapidly tripped by additionally arranging the trigger bulge between the lock and the movable contact assembly, the trip structure is simple and reliable, a fusion welding phenomenon occurred between the movable contact and the static contact caused by long trip time can be effectively prevented, and the disconnection capability of the circuit breaker is improved.
Owner:ZHEJIANG CHINT ELECTRIC CO LTD

Transverse segmental prefabricated prestressed concrete bent cap structure and assembling method thereof

The invention discloses a transverse segmental prefabricated prestressed concrete bent cap structure and an assembling method thereof. The transverse segmental prefabricated prestressed concrete bentcap structure comprises a bent cap body and prefabricated stand columns. The bent cap body comprises a plurality of prefabricated sections spliced in the transverse direction; a hole through which a steel strand penetrates is reserved in each prefabricated section; every two adjacent prefabricated sections are connected through a wet joint section; an upper profile steel lap joint structure and alower profile steel lap joint structure which are matched with each other are pre-buried in the joint surfaces, close to the two sides of the wet joint section, of every two adjacent prefabricated sections respectively; the transverse steel bars on the top face, the bottom face and the vertical face of each prefabricated section extend into the range of the corresponding wet joint section, and thetransverse steel bars of each prefabricated section and the transverse steel bars of another adjacent prefabricated section are arranged in a staggered lap joint mode. The small-tonnage segmented prefabricated assembly of the large-volume prestressed concrete bent cap is achieved, stress of the bent cap structure can be better ensured, the structure quality is improved, and the construction speedis increased.
Owner:SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD

Double-layer vierendeel truss structure system of large cantilever structure

The invention discloses a double-layer vierendeel truss structure system of a large cantilever structure, comprising a floor frame. The floor frame comprises frame columns (1), frame beams (2) and cantilever beams (3). The double-layer vierendeel truss structure system of the large cantilever structure is characterized in that a plurality of main truss columns (4) are arranged between the upper and lower frame beams (2) of the floor, the upper and lower frame beams (2) of the floor are connected with the main truss columns (4) to form a first-layer vierendeel truss structure, a plurality of auxiliary truss columns (5) are arranged between the upper and lower cantilever beams (3) of the floor, the upper and lower cantilever beams (3) of the floor are connected with the auxiliary truss columns (5) to form a second-layer vierendeel truss structure, and the first-layer vierendeel truss structure and the second-layer vierendeel truss structure are connected to form the double-layer vierendeel truss structure system of the large cantilever structure. The double-layer vierendeel truss structure system of the large cantilever structure has a simple structure and is convenient to construct. A space frame structure system is formed by two layers of vierendeel trusses. The double-layer vierendeel truss structure system of the large cantilever structure can meet the structure stress and deformation requirement under the condition of adopting the small beams.
Owner:广州市设计院集团有限公司
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