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311 results about "Splice joint" patented technology

A splice joint is a method of joining two members end to end in woodworking. The splice joint is used when the material being joined is not available in the length required. It is an alternative to other joints such as the butt joint and the scarf joint. Splice joints are stronger than unenforced butt joints and have the potential to be stronger than a scarf joint.

Mobile terminal, combined terminal equipment and splicing joint control method

The invention relates to a mobile terminal, in particular to a mobile terminal, combined terminal equipment and a splicing joint control method of the mobile terminal. The mobile terminal capable of realizing splicing joint is characterized in that according to a state determination instruction, the mobile terminal selectively enters a host work state or a slave work state; a display division unit divides the display contents of a host according to display screen resources of each mobile terminal in the combined terminal equipment when the mobile terminal is used as the host to work, so that a plurality of division display data corresponding to a plurality of mobile terminals in the combined terminal equipment is obtained, and the corresponding division display data is sent to slaves; a display switching unit displays the received division display data when receiving the division display data from the host under the condition that the mobile terminals are used as the slaves. The contents displayed by the host can be displayed by the slaves, when the number of the slaves is great, the contents can be displayed to a user by a larger screen consisting of a plurality of slaves, and the requirement of people on the large display area can be met.
Owner:ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1

Prefabricated reinforced concrete column and column splice joint with sleeves

The invention discloses a prefabricated reinforced concrete column and column splice joint adopting connection of embedded corrugated sleeves and high-strength reinforcement. The splice joint mainly comprises a prefabricated reinforced concrete upper column, a prefabricated reinforced concrete lower column, steel sleeves, the embedded corrugated sleeves and the high-strength reinforcement. An installation method of the splice joint comprises the following steps: in a factory, realizing the embedded high-strength reinforcement by a method of firstly pouring non-shrinkage self-compacting high-strength concrete into the embedded corrugated sleeves of the prefabricated reinforced concrete upper column and then inserting the high-strength reinforcement; and at the construction site, grouting the corrugated sleeves of the reinforced concrete lower column, inserting the embedded high-strength reinforcement of the upper column in the corrugated sleeves of the lower column and simultaneously welding the steel sleeve joint parts on the outer surfaces of the columns, thus realizing prefabricated reinforced concrete column and column splicing. The splice joint has the beneficial effects that all the used components are assembled and connected on the site, thus reducing reinforcement assembling and formwork supporting on the site, improving the building industrial assembly efficiency and reflecting the novel building concepts of environment friendliness and energy saving of building components.
Owner:HUNAN UNIV

Square steel core filling inner sleeve and opposing screw bolt splicing joint and construction method of splicing joint

InactiveCN102733490AHigh node stiffnessSimple and fast operationBuilding material handlingProject sizeScrew cap
The invention relates to a square steel core filling inner sleeve and opposing screw bolt splicing joint and a construction method of the splicing joint. The joint comprises an upper section square steel pipe, a lower section square steel pipe, a core filling inner sleeve and opposing screw bolts, wherein the core filling inner sleeve and the opposing screw bolts are connected between the upper section square steel pipe and the lower section square steel pipe, the core filling inner sleeve is in a rectangular cylinder shape, concrete is filled inside a tube body, the upper half part of the core filling inner sleeve penetrates through a longitudinal supper section screw bolt and a transverse upper section screw bolt in mutual staggered arranged at top and bottom, and the number of the opposing screw bolts is identical to the number of screw bolt holes arranged on the core filling inner sleeve. The joint rigidity is high, the operation is simple and convenient, the construction speed is high, and compared with the traditional lug plate and flange connection, the joint and the construction method have the advantages that the projected size is greatly reduced, and the design and the installation of adjacent components are convenient. The concrete is also filled in the inner sleeve, the huge pressure transferred by the steel pipe wall can be born, and the inner wall deformation caused by screw cap and screw bolt extrusion is prevented.
Owner:CHINA STATE CONSTRUCTION ENGINEERING CORPORATION

Fixture and method for measuring maximum tensile and shearing force of lap joint of friction stir welding

ActiveCN103592181AGuaranteed pure tensile shear failureEliminate additional bending momentsMaterial strength using tensile/compressive forcesMaterial strength using steady shearing forcesFriction weldingLap joint
The invention provides a fixture and a method for measuring the maximum tensile and shearing force of a lap joint of friction stir welding to overcome the problem that additional bending moment influences measurement results of the maximum tensile and shearing force of a lap joint of friction stir welding in a traditional tensile and shearing test. According to the fixture, four bearing installing holes are arranged along a same horizontal line; eight rollers are arranged in two layers, each layer consisting of four parallely arranged rollers; the end parts of each roller is mounted in a corresponding bearing installing hole through a positioning bearing. The method comprises the following steps: 1, allowing the distance between axle centers of two rollers located at two outermost sides of each layer of rollers to be 10 to 20 times thickness of the lap part of a test piece for tensile and shearing testing; 2, placing the test piece for tensile and shearing testing between the upper layer of rollers and the lower layer of rollers; and 3, clamping the assembled test piece for tensile and shearing testing, the fixture and cushion blocks on a tensile and shearing testing machine, carrying out tensile and shearing testing on the test piece for tensile and shearing testing at a loading speed of 0.5 to 1.5 mm / min and recording a maximum tensile and shearing test load F. The fixture and the method provided by the invention are used for measuring the maximum tensile and shearing force of the lap joint of friction stir welding.
Owner:HARBIN INST OF TECH

Cable butt joint device

Provided is a cable butt joint device. The cable butt joint device is simple in structure and convenient and fast to operate, and can control the rotation stress of cables effectively and improve the work efficiency. The cable butt joint device comprises a first cable connector, a second cable connector and a machine frame. The first cable connector comprises a base, a support, a cable rotation mechanism and a cable fixing mechanism. The cable rotation mechanism comprises a base frame, a worm gear, a worm and a plurality of idler wheels, and the worm gear is composed of a first gear and a second gear, wherein the first gear and the second gear are paired. The cable fixing mechanism comprises a first hoop and a second hoop, wherein the first hoop and the second hoop are paired. The second cable connector comprises a cable fixing base. According to the cable butt joint device, manpower consumption is greatly reduced, when cable cores are inserted into a connection pipe, the cable cores at the two ends can fully make contact in the connection pipe, and therefore the connection quality of the cable cores is improved. The cable butt joint device can guarantee that the phase sequence after cable butt joint is identical with an original phase sequence, achieve identification of the phase of the cable cores and the phase of a line, standardize the construction process of the cable line, reduce material consumption and guarantee the quality of a middle connector of the cable.
Owner:YANGZHOU JIANGDU POWER SUPPLY COMPANY OF JIANGSU ELECTRIC POWER +3

Welded joint force-corrosion coupling testing experimental method and welded joint force-corrosion coupling testing experimental device

The invention discloses a welded joint force-corrosion coupling testing experimental method and a welded joint force-corrosion coupling testing experimental device. The welded joint force-corrosion coupling testing experimental device is characterized in that a heating device is arranged on the outer side of an autoclave body, a heat insulation layer is arranged on the outer side of the heating device, an autoclave cover is arranged on the upper surface of the autoclave body, a first gas inlet pipe, a second gas inlet pipe, a gas outlet pipe, an auxiliary feeding device, a pressure sensor and a pressure gauge are arranged on the round surface of the autoclave cover sequentially along the diameter direction, a testing device is arranged at the inner bottom of the autoclave body, a tensile test specimen is arranged between a left chuck and a right chuck, an extensometer is arranged above the tensile test specimen, and a strain gauge is arranged below the tensile test specimen. The welded joint force-corrosion coupling testing experimental method and the welded joint force-corrosion coupling testing experimental device have the advantages that required strain is applied to a welded joint successfully and strain in the welded joint and parent metal positions are obtained to study effect of deformation on corrosion of different portions of the welded joint so as to evaluate the service environment of the welded joint.
Owner:TIANJIN UNIV

Outer-square and inner-circular steel pipe double-sleeve splicing joint and construction method thereof

InactiveCN107514061ATroubleshoot technical issues with structural collapseImprove vertical load carrying capacityBuilding constructionsStructure CollapseVertical load
The invention relates to the technical field of building steel structure construction, in particular to an outer-square and inner-circular steel pipe double-sleeve splicing joint and a construction method thereof. The outer-square and inner-circular steel pipe double-sleeve splicing joint comprises an upper-section square steel pipe column, a lower-section square steel pipe column, an upper-section circular steel pipe column and a lower-section circular steel pipe column. The square steel pipe columns comprise the upper-section square steel pipe column and the lower-section square steel pipe column, and the circular steel pipe columns comprise the upper-section circular steel pipe column and the lower-section circular steel pipe column. The joint further comprises a square outer sleeve connected between the upper-section square steel pipe column and the lower-section square steel pipe column, a circular inner sleeve connected between the upper-section circular steel pipe column and the lower-section circular steel pipe column and a long bolt. According to the outer-square and inner-circular steel pipe double-sleeve splicing joint and the construction method thereof, the problems that as for an existing outer-square and inner-circular steel pipe core cylinder joint connecting mode, on-site construction operation is inconvenient, connecting components are complex in design and construction, the rigidity of a joint is insufficient, and how a current core cylinder joint is spliced through sleeves is not determined are solved; and the technical problem that when the vertical load of a column is over large, a bolt fractures, and thus a structure collapses is solved.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

Car steel-aluminum splicing joint welding method and system

The invention relates to a car steel-aluminum splicing joint welding method. The car steel-aluminum splicing joint welding method is characterized by comprising the following steps that a first workpiece and a second workpiece required to be subject to splicing welding are provided; secondly, the first workpiece and the second workpiece are vertically spliced and clamped; thirdly, a laser cuttingsystem is provided; fourthly, a laser molten brazing welding system is provided, and a laser welding head, a wire feeding head and a laser cutting head in the laser molten brazing welding system are arranged in series and column in the welding direction; fifthly, the laser cutting system is started, and high-energy laser beams formed through focusing of the laser cutting head irradiate the surfaceof the first workpiece vertically; sixthly, the laser molten brazing welding system is started, the laser welding head and the wire feeding head are subject to molten brazing welding along the trackof the laser cutting head, and welding process is finished. The invention further discloses a car steel-aluminum splicing joint welding system. Compared with the prior art, the method and system havethe beneficial effects of being good in welding effect and simple in process.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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