362results about How to "No soldering required" patented technology

The invention relates to a building steel structure beam column assembly type rigid joint which is characterized in that splicing plates are interactively arranged on upper flanges and lower flanges of a cantilever beam and a frame beam, and the splicing plates on the two sides are connected with the beams by welding seams in a steel structure processing factory previously. During field mounting of the joint, the splicing plates firmly welded on the two sides serve as ear plates to allow a mounting beam section to be in place quickly; after being in place, the splicing plates are connected with the upper flange and the lower flange of the beam on the other side and spliced with a web plate by bolts; and the mounting of the beam column rigid joint is accomplished. The beam column joint is wholly spliced by the bolts in a mounting field, and is reasonable in structure, definite in force transmission, high in construction efficiency and good in safety; the field mounting is in place quickly; no welding is adopted; the mounting efficiency can be improved; the risk of a fire caused by the welding is avoided; and the joint is wholly assembled by the bolts in a construction field, so that a great convenience is brought to a construction site where the construction field condition is poor and the welding cannot be carried out conveniently.

The invention relates to a method for preparing a bicycle frame from a long-fiber reinforced thermoplastic composite material through on-line direct molding. The method comprises the following steps of: plasticizing thermoplastic resin and an additive in a cylinder of a double-screw extruder by controlling processing temperature, drawing continuous fiber out from a creel, adjusting tension and leading into the cylinder of the double-screw extruder, uniformly mixing fiber into thermoplastic resin melt through cutting of a screw, and directly feeding thermoplastic resin melt mixed with the continuous fiber into a bicycle frame compacting tool set or pushing into a bicycle frame injection model and molding. Compared with the prior art, the method has the advantages that: mould pressing or injection molding can be directly performed, welding is not required, products prepared from the long-fiber reinforced thermoplastic composite material through on-line direct molding have the characteristics of high intensity, light weight, high impact resistance, low cost and the like.

The invention aims to provide a method for integrally manufacturing a hanging ring and an infusion bag and a bottle blank injection mold used in the method. The manufacturing method comprises the following steps of (a) injection-molding of a bottle blank, namely performing injection-molding on an infusion bottle (bag) blank with a hanging ring by one step by using a hanging ring integral-injection mold; (b) pre-blowing molding, namely performing temperature regulation shaping and primary blow-molding on a bottle body of the injection-molded bottle blank, and bending the hanging ring at a certain angle; (c) blow-molding, performing secondary blow-molding on the bottle blank, and simultaneously bending the hanging ring into a formed sunken groove; (d) de-molding. According to the method and the injection mold, the hanging ring is directly injection-molded on the bottle blank, and the hanging ring and the bottle blank are integrally injection-stretching-blow molded, so that the hanging ring and the infusion bag are integrally molded, a production process is simple, and comprises few procedures, the production pollution is effectively avoided, and the production efficiency is improved; a hanging ring mold is eliminated, so that the mold input is low, the welding is not required, production sites are reduced, and the labor intensity and the manufacturing cost are reduced.

The invention provides an electronic expansion valve which comprises a valve body (1), a sleeve (2) connected to the upper end of the valve body (1), a valve seat (5) arranged in the valve body, a nut (6) connected with the upper end of the valve seat and a magnetic rotor (3) which is arranged outside the nut and matched with the upper part of the nut through a screw rod (4), wherein a cavity is formed between the inner walls of the sleeve (2) and the valve body (1) and the outer walls of the nut (6) and the valve seat (5). The electronic expansion valve is characterized by also comprising a baffle plate (15) and a damping channel (151), wherein the baffle plate is arranged in the cavity to divide the cavity into an upper cavity (101) and a lower cavity (103); and the damping channel (151) is communicated with the upper cavity and the lower cavity. According to the electronic expansion valve, because the cavity used for accommodating fluid is divided into the upper cavity and the lower cavity through the baffle plate, and intense interference to the magnetic rotor of fluid pulse is reduced through the damping channel, resonance is prevented, and noise is reduced or eliminated.

The invention relates to a square tapered aluminum alloy automobile front carling based on an embedded carbon fiber. The square tapered aluminum alloy automobile front carling based on the embedded carbon fiber is characterized in that the section of the front carling is composed of two parts, namely the aluminum alloy outer wall and a carbon fiber reinforced plate. An aluminum alloy outer plate is little in elasticity modulus and good in deformation mode and the carbon fiber reinforced plate has the strong collision energy absorption capability. By means of the two new materials are combined and a square tapered structure, the contradiction among the high energy-absorption performance, the low-collision-acceleration peak value and the good crushing mode can be coordinated in a satisfying manner in the collision safety design process. The square tapered aluminum alloy automobile front carling based on the embedded carbon fiber has great significance in improvement of the collision performance and weight reduction.

A broadband double circularly polarized end-fire array antenna based on a gap waveguide comprises an upper metal cover plate layer, a gap waveguide layer and a lower metal cover plate layer which aresuccessively stacked from top to bottom, wherein the gap waveguide layer is combined with the upper metal cover plate layer to form a upper gap waveguide structure, and is combined with the lower metal cover plate layer to form a lower gap waveguide structure; the upper and lower gap waveguide structure are fed through a first input port and a second input port respectively; the gap waveguide layer includes a metal separating plate, and metal ridges and a plurality of metal pins which are arranged on the front and back sides of the separating plate; each metal ridge includes a ridge gap waveguide T-type power divider and a three-stage stepped transition section transitioning from the ridge gap waveguide to a slot gap waveguide; the terminal of the metal separating plate is set as a separating plate circular polarizer; an antenna radiation structure is composed of a plurality of separating plate circular polarizers arranged in a matrix. The broadband double circularly polarized end-on-fire array antenna satisfies the characteristics of a wide frequency band, easy integration, and different circular polarization directions.

Discloses a Light Emitting Diode (LED) lighting system comprising one or more LED lighting fixture and at least one connector for each LED lighting fixture. The LED lighting fixture has a light Emitting Diode (LED) light strip comprising a substrate, at least one LED light and at least two conductive strips. The LED light is electrically connected to the conductive strips. Each connector comprises at least one conductive contact and/or at least one socket configured to connect at least two LED lighting fixture and/or to connect one LED light fixture and a plug or power cord. At least two LED lighting fixture is connected by inserting each end of the connector to the transverse side of one LED lighting fixture without soldering such that the conductive contact comes in contact with the conductive strip.

The invention provides a bicycle frame. The bicycle frame comprises hollow tubes and metal connecting pieces, wherein the metal connecting pieces comprise a five-way connecting piece, a claw connecting piece, a seat tube connecting piece and two bicycle head connecting pieces; a bicycle head is connected with an upper tube through one bicycle head connecting piece; the bicycle head is connected with a lower tube through one bicycle head connecting piece; the upper tube, a middle tube and an upper fork are connected together through the seat tube connecting piece; the lower tube, the middle tube and a lower fork are connected together through the five-way connecting piece; the upper fork and the lower fork are connected with each other through claws; the hollow tubes and the metal connecting pieces are glued into a frame body. A process for manufacturing the bicycle frame comprises the following steps: customizing the metal connecting pieces and the claws on a large scale, performing sand blasting and cleaning for later use; performing sand blasting on hollow tubes including the bicycle head, the upper tube, the middle tube, the lower tube, the upper fork and the lower fork, and cleaning for later use; gluing spare metal connecting pieces, claws and hollow tubes into a frame body; entering a baking procedure, and baking at the temperature of 140-160 DEG C for an hour for sizing; after baking, cooling to obtain the bicycle frame.

The invention discloses a foundation pit anti-floating anchor rod pull-out test tool. The tool comprises an anchor rod, an anchor rod locking component, a connecting sleeve, a lengthened anchor rod and a center-penetrating jack, wherein the anchor rod consists of a plurality of anchor ribs; the anchor rod consists of a locking rod and a locking buckle component; the upper end of each anchor rib in the anchor rod is symmetrically bent from the center to the outside to form a bent part; a plurality of groove ways for placing the anchor ribs are symmetrically and vertically arranged on the outer wall of the lower part of the locking rod at intervals; the locking buckle component is arranged on the lower part of the locking rod in a buckling way to lock and fix the anchor ribs in the groove ways; a step structure pushing against the bent parts of the anchor ribs is arranged on the middle part of the locking rod; the upper end of the lock rod and the lower end of the lengthened anchor rod are linked together through the connecting sleeve; the lengthened anchor rod is linked with the center-penetrating jack; the lock rod and the lengthened anchor rod can be quickly connected together through the anchor rod locking component. The center-penetrating jack applies a pull-out force to the lengthened anchor rod and transfers the force to the anchor rod, so that a pull-out test is performed; according to the pull-out test tool, the traditional structure form is eliminated, lengthened anchor ribs are not used, welding is not required, and the tool can be repeatedly used, so that the cost is effectively reduced, and the working efficiency is improved.

The invention discloses a connecting piece used for fixing a steel structure panel house frame and used in a multi-angle orientation mode. A connecting piece body is included, the left end of the connecting piece body is fixedly connected with the right end of a fixing plate through a first universal ball. An adjustment mechanism is arranged between the center position on the left side of the lower end of the connecting piece body and the fixing plate, the left end of the fixing plate is connected with a mounting frame through a connecting mechanism, and a mounting mechanism is arranged at theleft end of the mounting frame. The vertical, horizontal and oblique rotation are achieved through manual adjustment by arranging two sets of adjusting mechanisms, and cooperated with the mounting mechanism, the fixing plate is installed at different angles, so that the connecting piece body performs hemisphere movement within a certain range of the installation location. The hemisphere movementfar exceeds the rotation angle which a current connecting piece can provide, and the orientation is automatically locked after the adjustment is completed. In addition, the connecting mechanism solvesthe problem of requiring prior measurement to install the connecting piece, so that the possibility of mounting error and deviation is avoided.

The invention relates to a method for measuring the heat conductivity coefficient of conduction oil. The method adopts a transient hot wire method, which is characterized in that the measuring method adopts a novel integral hot wire structure prepared by technologies such as etching, chemical plating, etc. The integral hot wire structure does not need welding and is good in stability and shock resistant property, so the method can measure a wide temperature range, moreover, due to the integral structure, there is no welding point, and the test accuracy is high.

The invention aims at providing a stator core which is formed by serrated units buckled mutually and needs no pressure holding or welding. The stator core provided by the invention comprises a plurality of serrated units assembled together in a circumferential direction, each serrated unit is provided with a teeth part used for twisting wire and a yoke part positioned at one end of the teeth part, a circular arc bulge is arranged at one end of the yoke part, a groove matched with the bulge in shape is arranged on the other end of the yoke part, and one serrated unit is matched with the groove of an adjacent serrated unit by the bulge, so as to form a planar hinge capable of rotating relatively between two adjacent serrated units.

The invention provides a secondary electrochemical battery sealing body with an encapsulated type chip shield structure. The sealing body comprises a cathode cap, a circuit board module and an insulating washer, wherein a sunk wire turn structure is formed at one end, near the cathode cap, of a battery shell; the circuit board module is positioned between the wire turn and the cathode cap; the length of the diameter of the circuit board module is set between the sunk inner diameter formed by the wire turn and the inner diameter of the battery shell, so that the circuit board module is clamped on one side of the wire turn; the circuit board module and the cathode cap are connected through a conducting material, and form a first enclosed electromagnetic shielding space; the battery shell and the circuit board module form a second enclosed electromagnetic shielding space; electronic components are arranged in the first enclosed electromagnetic shielding space and the second enclosed electromagnetic shielding space; the section of the insulating washer adopts a shape referring to the description; the insulating washer is arranged in the interspace among the battery shell, the circuit board module and the cathode cap, presses and fixes the circuit board module between the wire turn and the battery shell, and insulates the battery shell and the cathode cap.

The invention discloses an anchor pile method static load test detecting device. A static load test pile and a jack arranged above the static load test pile are included. A main beam is horizontally arranged above the jack. At least two secondary beams perpendicular to the main beam are horizontally arranged above the main beam. Two anchor piles are arranged under each secondary beam, and the anchor piles are symmetrically arranged on the two sides of the main beam. A plurality of anchor ribs are arranged at the middle positions of the anchor piles, and each of the two sides is provided with arow of parallel connecting rods. The connecting rods are located on the two sides of the secondary beams. Anchor discs are further arranged between the anchor piles and the main beam, supporting pieces are arranged between the anchor discs and the anchor piles, and the upper ends of the anchor ribs are fixedly connected with the anchor discs. The upper ends of the connecting rods penetrate through the anchor boxes and are fixed to the positions above the secondary beams through steel bar fixing pieces. According to the anchor pile method static load test detecting device, design is reasonable, construction is convenient, the anchor ribs can be better positioned and fixed, and the construction period is effectively shortened.

The invention discloses a multifunctional reflow jig for an FPC lamp bar, and solves the technical problems that the influence of an existing jig for an FPC lamp bar on the temperature of a reflow welding furnace is excessive, and a steel cover piece and a magnetic structure of the jig both need welding, and have poor reusability. The following technical scheme is adopted: the multifunctional reflow jig for the FPC lamp bar comprises a carrying disc formed from a synthetic stone material in a die-casting manner, a location base matched and clamped with the carrying disc to form one piece and formed from an aluminium alloy material in a die-casting manner, a magnet embedded on the location base, and a steel cover piece closely attracted through the magnet, used for sealing the carrying disc on the location base and formed from a steel material in a die-casting manner. The multifunctional reflow jig has the following advantages: heat absorption influence is reduced through using the carrying disc formed from the synthetic stone material and a reflow fixing fixture, clip connection is used in the structure for many times, and a lighting fixture is designed, thus an assembly process is greatly simplified, and the production efficiency is increased.

The invention provides a boundary scanning fault injection method based on data reconstruction. The boundary scanning fault injection method comprises the steps that boundary scanning chains are identified and connection with a fault injection object is established; a fault injection instruction is received and fault instruction data is parsed to identify a fault mode, and the fault instruction data and data on TAP scanning chains of the current fault injection object are cached and processed; fault injection object information is read from a BSDL file to select a fault injection point; faultinjection sequence data is generated and is sent to the fault injection object, injection of different types of faults is achieved, pin states are fed back to a fault injection PC control terminal. Byadopting the method, user-defined establishment of fault injection testing data is achieved, and the problem is solved that a fault injection method based on a hardware circuit affects the quality ofsignal transmission of a chip.

The invention provides a V-shaped foldable handle, which comprises a handle base, a left component, a right component, a left handle, a right handle, a left quick dismounting part, a right quick dismounting part, a leaning sheet, a pressing box, a bolt with a handle and an internal stretching tube, wherein the handle base is in the shape of a cat head; the left component and the right component pass through the eyes of the cat of the handle base; the left handle and the right handle are connected at the upper ends of the left component and the right component; the pressing box is rotatably connected to the right component; the bolt with the handle is connected to the right component; the bolt with the handle is spirally pinched, therefore, the pressing box is downwards pressed to interlock the left component and the right component; the left quick dismounting part and the right quick dismounting part are arranged on the eyes of the cat of the handle base and can lock the left component and the right component which pass through the eyes of the handle base; the leaning sheet is connected to the upper end of the handle base to be served as the leaning part of the interlocked left component and the right component.

The invention discloses a hinge. The hinge comprises a hinge base, a square steel rotating shaft and hinge pins. The hinge base comprises a bent plate. The bent plate is provided with a first verticalplate and a second vertical plate, and the first vertical plate and the second vertical plate form a bending corner. The first vertical plate is provided with a containing opening used for containingthe square steel rotating shaft, and the upper end and the lower end of the first vertical plate are provided with lugs. Any lug forms an installation hole used for installing the corresponding hingepin in the vertical direction. The square steel rotating shaft comprises a rotating shaft body, and the upper end and the lower end of the rotating shaft body are provided with hinge shaft holes. After the hinge shaft hole located in the upper end aligns to the installation hole located in the upper end and the hinge shaft hole located in the lower end aligns to the installation hole located in the lower end, the square steel rotating shaft can be installed to the lugs through the hinge pins, so that the square steel rotating shaft can rotate relative to the lugs. The invention further discloses a power distribution box body comprising the hinge. According to the hinge, welding is not needed, the bearing load of the square steel rotating shaft is high, machining is easy, installation is convenient, the hinge is not affected by the material thickness, spraying or other factors, and the cost is low.