90 results about "Solid joint" patented technology

An acoustic reflector comprises a shell surrounding a solid joint free core, said shell being capable of transmitting acoustic waves incident on the surface of the shell into the core to be focused and reflected from an area of the shell located opposite to the area of incidence so as to provide a reflected acoustic signal output from the reflector. The ratio of the speed of sound wave transmission in the shell to the average speed of the wave transmission in the core is preferably in the range of 2.74 to 3.4, inclusive or a multiple thereof with best result in the range of 2.74 to 2.86 inclusive.

The invention provides a method for ensuring the position of a load box and pile quality and effectively transmitting axial force, shearing force and bending moment in self counter force balance loading test of engineering pile bearing capacity. A built-in jack of the load box is connected with a top cover plate and a bottom cover plate through high strength bolts, without being affected for normal loading, and consequently the load box transmits certain bending moment. The periphery of the load box is provided with twisted steels that are mutually lapped together and protected by a telescopic pipe, and mudjacking and solid joints are conducted after test, so that a reinforcing cage achieves the effect of overall equivalent connection and bears great shearing force and bending moment. The load box and the reinforcing cage are connected by means of inside cutting, and the horizontal resistance of a pile is increased at the load box. The surrounding gap of the pile is mudjacked at the load box after test to keep the continuity and integrity of pile concrete and ensure the axial force transmission of the pile and the vertical bearing capacity. The bottom of the bottom cover plate of the load box is provided with a conical flow guide body in order to avoid mud and sediments remaining on the bottom of the bottom cover plate when the pile concrete passes through the load box in pouring and ensure the pile quality and test accuracy.

The invention relates to a manufacturing method for a high-niobium TiAl system intermetallic compound and a TC4 titanium alloy composite component. Through the process methods such as the powder-solid joint containing and TC4 titanium alloy powder pretreatment technology and the high-niobium TiAl system intermetallic compound and TC4 titanium alloy hot isostatic pressing diffusion bonding technology, efficient and reliable welding under any complex-shape molded surfaces is carried out on a welding position of the connection part of the high-niobium TiAl system intermetallic compound and a TC4 titanium alloy, and the prepared high-niobium TiAl system intermetallic compound and the prepared TC4 titanium alloy composite component are stable and reliable in welding performance, compact in welding area, free of blind cracks and high in connector strength coefficient.

A cage nut assembly includes a nut having a cylindrical portion extending from a plate portion. The nut is encaged in a cage such that the cylindrical portion extends through an aperture in the cage. The cylindrical portion of the nut is collapsible such that the nut collapses and provides a plurality of flanges upon an application of force. The flanges are folded or curved / mushroomed such that the plate portion of the nut is suspended within the cage so that the nut will not, or will minimally, stick to the cage or workpiece when coated with e-coat or ELPO. Upon torqueing a fastener into place, the flanges are bent up to allow the plate portion to interface with the cage or a workpiece to provide a solid joint.

The invention discloses a whole-pneumatic air burst fire extinguishing bomb relating to a fire extinguishing bomb, and provides an air burst fire extinguishing bomb with flexible and light use. The whole-pneumatic air burst fire extinguishing bomb is provided with a gas cylinder, a bottle stopper, a gas cylinder solid joint piece, a control sheet, an axle, a steel ball, a starting piece, a control sleeve, a shearing pin, a spring, a delay electric detonator case, a sheath, a gas cylinder case, an ejector sleeve and a tail hood, wherein the gas cylinder solid joint piece is fixedly connected with the gas cylinder and is provided with an axle hole which is matched with the axle; the control sheet supports and tightly presses the bottle stopper by the axle and the steel ball; high-pressure air is injected into the gas cylinder by the bottle stopper in advance; the starting piece is fixedly connected with the cylinder solid joint piece; the front part of the starting piece contacts with the spring; the delay electric detonator case is connected with the gas cylinder case; the starting piece is connected with a control sleeve by the shearing pin; the shearing pins corresponding to the starting piece and the control sleeve are concentric; a steel ball sliding-out hole arranged on the control sleeve deviates to the gas cylinder relatively to the starting piece steel hole; the ejector sleeve is arranged behind the gas cylinder; and the tail cover is arranged on the tail part of the ejector sleeve.

The invention relates to a combined type refrigerator, comprising a master control box and a plurality of box bodies, wherein the master control box is connected with the plurality of box bodies by a solid joint device, the low temperature gas in the master control box is transferred into each box body through air pipes, thus the number of the box bodies around the master control box can be adjusted according to different temperature, and the practical progressive nature of fast assembly and disassembly, and occupying no space can be achieved..

The invention provides drive shelter positioning and assembling equipment and an assembling method. The drive shelter positioning and assembling equipment comprises a control console and a rectangular assembling table, wherein the middle of the control console perpendicularly sinks to form the rectangular assembling table. A transverse clamping mechanism, a longitudinal clamping mechanism and sliding chutes allowing the transverse clamping mechanism and the longitudinal clamping mechanism to be positioned are arranged on a tabletop of the assembling table. The sliding chutes extend towards the center of the assembling table along the symmetrical axis of the assembling table in the axial direction, a scaleplate paved along the edge of the assembling table and a guide rail parallel to the edge of the assembling table are arranged on the tabletop of the control console, and the guide rail is provided with a mechanical arm capable of sliding freely. Existing hoisting equipment or manual operation is replaced by the mechanical arm, the mechanical arm can position each detached component through the scaleplate according to relative positions of the detached components of a frame of a drive shelter, in addition and can support the detached components in the drilling and solid joint processes, and therefore assembling accuracy can be guaranteed.

The invention discloses a preparation method of an environmentally-friendly degradable anti-haze dust suppressant, the anti-haze dust suppressant is composed of acrylic resin, a defoaming agent, polyvinyl alcohol, absolute ethanol, a leveling agent, an antimycotic antibacterial agent, a light degradation agent and deionized water, a crosslinking monomer is added into the acrylic resin in the formula in the preparation process, the formed acrylic resin has excellent film-forming properties, the acrylic resin as matrix resin is combined with the polyvinyl alcohol and other substances to prepared the anti-haze dust suppressant, the anti-haze dust suppressant has consolidation, wetting and coagulation three functions, overcomes the defects that commonly used adhesion dust suppressants in the prior art cannot meet the solid joint effects; a new soap-free emulsion technology is cooperated in the preparation method, the effect of an emulsifier on the environment is reduced, at the same time, stable dust suppression agent emulsion can be obtained by precise control, the process problem for preparation of super water absorbent resin is solved, and product stability is realized.

The invention relates to a preparation method of an Al-Si-Zn rapidly-cooled solder for aluminum alloy / stainless steel brazing. Zinc powder and solder foil containing aluminum, silicon, iron, copper and magnesium are used as raw materials and are added into a vacuum non-consumable arc furnace, and argon is filled after vacuum pumping; a power supply is turned on, the raw materials are heated to 1400-1500 DEG C at a rate of 28 DEG C per second, the power supply is turned off, and the materials are cooled for 15 minutes; the molten raw materials are taken out, turned and fed into the arc furnace again to be molten once to twice; the cooled alloy block is taken out and ground after melting; and the alloy block is placed into a single-roller melt rapid-quenching device and heated to be molten, the molten alloy is sprayed onto a roller, a solder foil band with the width of 15mm and the thickness of 120Mum can be formed via band spinning, and thus the Al-Si-Zn rapidly-cooled solder is prepared. The prepared solder has good wetting performance, the wetting time for stainless steel can be reduced, and the stainless steel and aluminum can be wetted simultaneously, so that solid joints can be formed between the stainless steel and the aluminum.

The invention belongs to connection devices for joints of mining rails and particularly relates to a quick coupling for fixation of mining rails. The quick coupling comprises a first clamping plate, a second clamping plate and an insertion plate, and the first clamping plate and the second clamping plate are arranged on two sides of rail webs, and the insertion plate is inserted between two rail end faces. At least one of the clamping plates is provided with bolts, and the bolts are inserted into connection holes reserved in the rail webs; the insertion plate extends towards at least one side of the rail webs to form an extending portion which penetrates through the through holes in the first clamping plate and / or the second clamping plate, each extending portion is provided with insertion holes, and wedge blocks are inserted into the insertion holes and abutted against the outer sides of the first clamping plate and / or the second clamping plate to tightly press the first clamping plate and / or the second clamping plate onto the rail webs. The two clamping plates are locked by the wedges, so that adoption of bolts for solid joint is avoided, mounting and demounting efficiency is greatly improved, and equipment cost is saved; in addition, the quick coupling has the advantages of small size, light weight and convenience for constructors to take along.

The present invention discloses a food thawing pool. The food thawing pool consist of a box body, a box internal cavity, box walls, a water outlet, a water inlet and a water draining exit. The box body consists of a small metal box covered with a big metal box, namely a sandwich layer is formed between the box walls and the box bottom. The mouth parts of the two box bodies are in a sealed solid joint. A plurality of cushion blocks are fixedly arranged at the four corners and central parts of the sandwich layer of the bottom of the two box bodies to ensure the bottom of the internal box body not to be deformed with stress. A gap is maintained at the bottom of the two box bodies, the box internal cavity is a container part of the small box, and the inner and outer box walls constitute walls of the sandwich layer. The water outlet is fixedly arranged at one bottom corner close to the box body and only connects to the sandwich layer connecting to the box body. The water outlet is fixedly arranged at one top corner close to the box body. The water draining exit is fixedly arranged at one bottom corner close to the box body in a sealed manner and passes the box walls to connect with the box internal cavity. The advantages are the food thawing pool is simple in structure and easy to use, and can use recycled water to save water resource.

The invention provides a low-strain existing foundation pile integrity detection method capable of eliminating upper structure influences. By means of the method, when an upper structure meets certainconditions, the upper structure can be considered as an approximate pile top solid joint, the upper structure influences are approximately a secondary excitation function which has certain time delaycompared with initial excitation and is opposite to the initial excitation in direction, analytical calculation is carried out according to the stress wave principle, and secondary excitation formedby the upper structure is completely eliminated. The method is simple in principle and simple in operation. Compared with other low-strain test methods, the number of installed sensors is one or two,acquisition equipment is simple, the result is accurate and reliable, and strong engineering application and promotion prospects are achieved.

The invention discloses a frame construction for assembling at least one adapter card and at least one expansion card. The frame construction comprises a main frame, a first auxiliary frame and a second auxiliary frame, wherein the main frame is provided with a first frame body, a plurality of tightening parts, a plurality of solid joint parts and a first opening; the tightening parts and the solid joint parts are arranged on the first frame body; the at least one adapter card is fixed on the corresponding solid joint part; one of the tightening part is adjacent to the first opening; the first auxiliary frame is provided with a second frame body and a second opening; the first opening and the second opening are used for accommodating the side plates of the expansion card; the second auxiliary frame is provided with a third frame body and a second solid joint part; the second solid joint part is arranged on the third frame body; and the first auxiliary frame and the second auxiliary frame are assembled on the corresponding tightening parts in a selectable manner.

The invention provides a reflecting on-line measuring device for textile material spherical compression surface morphology. The device comprises a box body and is characterized by also comprising a compression mechanism and a displacement mechanism, wherein a light source and a morphology camera shooting mechanism are arranged in the box body; a first calibration plate is carved on the left side wall of the box body; a third calibration plate is carved on the rear wall of the box body; a second calibration plate is carved on the bottom wall of the box body; a textile material is fixed on the second calibration plate; the compression mechanism comprises a sliding bar, a pressure sensor, a solid joint bar and a hemisphere; one end of the sliding bar is connected with the displacement mechanism and is driven to vertically move by the displacement mechanism; the other end of the sliding bar is fixedly connected with the pressure sensor; one end of the solid joint bar is fixedly connected with the hemisphere; the other end of the solid joint bar is fixedly connected with the pressure sensor. The on-line measurement of the surface morphology in the spherical compression process of the textile material is realized, particularly the on-line measurement of the surface morphology of the contact region between components of the compression mechanism and the textile material is realized, and the relation between the interval fabric structure and the compression performance is favorably distinct.

The invention provides a solid joint column base structure which comprises a steel column web, steel column outer edge plates, four reinforcing plates and a bottom plate. One steel column outer edge plate is connected to each of the lateral sides at two ends of the steel column web. The reinforcing plates includes two first reinforcing plates and two second reinforcing plates. The two first reinforcing plates are disposed on the surface of the steel column web. The two second reinforcing plates are respectively connected with the steel column outer edge plates at two ends. The steel column web, the steel column outer edge plates and the reinforcing plates are respectively connected with the upper end of the bottom plate. Anti-shearing steel is disposed at the lower end of the bottom plate. The solid joint column base structure has the advantages that two pairs of reinforcing plates are provided, the whole column base structure is high in strength, and good fixing effect on building structures is achieved.

The invention relates to a composite material element (1), the composite material comprising a microfissured matrix (7) in the form of a three-dimensional interconnected network (4) of microfissures exposed on the surface of the ceramic matrix, an additive material (6) consisting of a flux or glass being dispersed in the matrix, the additive material (6) being a material which, when the composite material is brought to a predetermined temperature, softens and migrates by capillarity in the network (4) of microfissures (4) to said surface of the element. The quantity of additive material dispersed initially in the matrix is in a sufficient proportion compared to the matrix intended to coat a surface (5) of the composite material element left exposed so as to create a gas-tight barrier.

A flat panel display and a front frame structure thereof. The front frame structure comprises a plurality of front frame components, and each front frame component comprises a body and at least one limiting member bonded with the body. When applied to a flat panel display, the front frame structure is bonded at the rear panel. The limiting member comprises a solid joint part and a limiting part which are connected, wherein the solid joint part is bonded with the body, and the limiting part is vertically disposed on the body. The front frame components are respectively connected with each other through the body, and an opening is surrounded by the front frame components. According to the front frame structures with different sizes, the plurality of modularized front frame components are connected, which not only simplifies the manufacturing of the front frame structure, but also realizes manufacturing of front frame structures with different sizes; therefore, the procedure time is reduced, and the production efficiency is improved.

The invention discloses an online indirect measuring method for rotation precision of a machine tool main shaft, and belongs to the technical field of machining. The method comprises the following steps: establishing a transmission mechanical model of vibration between a measuring point on a main shaft solid joint part and a main shaft to obtain a main shaft acceleration signal; deriving a main shaft displacement signal through an integration method, and drawing a radial axis trajectory chart and an axial axis trajectory chart of the main shaft; and performing precision assessment on a trajectory of the radial axis trajectory chart and the axial axis trajectory chart. The method for measuring the rotation precision of the machine tool main shaft under a measuring processing state providedcan obtain axial and radial absolute displacement of the main shaft, has the advantages of being accurate in measurement, wide in range of application, easy in mounting, and the like, and is of greatsignificance in predication on processing precision of the machine tool, assessment on dynamic performance of the machine tool, and online pre-warning of the machine tool.

The invention relates to oil testing of petroleum, especially to a pressure testing system and a pressure testing method. The pressure testing system comprises a pressure testing tool; and the system is characterized in that: the system also comprises a solid choke plug, a hollow end socket and a nylon packing; one end of the solid choke plug is connected with an output end of the pressure tool and the other end of the solid choke plug is a solid joint; one end of the hollow end socket is connected with an input end of the pressure tool and the other end of the hollow end socket is a hollow joint; a liquid passing hole is arranged in the middle of the hollow end socket; one end of the nylon packing is capable of being connected with a hydraulic cylinder and the other end of the nylon packing is a sealed end face that is cooperatively docked with the hollow joint; and an inner bore that is communicated with the liquid passing hole is arranged at the nylon packing. In the prior art, it is difficult to carry out detection on a sealing effect of a pressure testing tool by a pressure testing machine and the detection effect is not good; however, the above-mentioned defects can be overcome with utilization of the pressure testing system and the pressure testing method provided in the invention.

The invention provides a sealing device for a door and window curtain wall. The sealing device comprises a body and a viscidity portion, wherein one side of the body, which faces a profile, is provided with a solid joint portion, the solid joint portion is matched with the profile in fixed connecting mode, one side of the body, which faces a plate, is provided with a butt joint portion, the viscidity portion is connected to the butt joint portion so as to enable the body and the plate to be matched in pasting mode, and at least one end of the solid joint portion and at least one end of the butt joint portion are connected, so that the sealing device is in a structure which guarantees that the butt joint portion can be matched with the solid joint portion when displacement or deformation is generated on the butt joint portion due to the fact that the butt joint portion is driven by the plate. The sealing device for the door and window curtain wall effectively improves tightness of the door and window curtain wall.

The invention discloses a window hinge joint method for erection of a suspension bridge steel truss stiffening girder. At the erection stage of the steel truss stiffening girder, according to construction conditions and the stress requirement of the stiffening girder, temporary hinge joint is adopted between some stiffening girder sections. Linear changes of the stiffening girder at the erection stage of the stiffening girder or at the installation stage of a bridge deck slab are utilized to achieve gradual unstressed solid joint transformed from temporary hinge joint, and transformation from all temporary hinge joint to solid joint at the erection stage of the stiffening girder or at the installation stage of the bridge deck slab is realized.

The invention relates to a battery pack with an anti-collision safety protection structure, in particular a battery pack to prevent fire in case of collision or crash of an electric vehicle and avoid explosion of the battery. The battery pack with multilayered structure provided by the invention consists of two or more single-layer battery packs, and is characterized in that: the two or more single-layer battery packs realize physical solid joint and electric connection through at least two or more groups of up and down matched metal hooks and pins matching with the metal hooks. When the electric vehicle is collided, huge impact force triggers and promotes a cutting system matching the battery pack with multilayered structure to break a breakable insurance inserted rod and drive the pin to take off from a gap preset at the side of the metal hooks; and the damage process can always be ahead of the collision damage process, so as to realize early fire proof and explosion proof, minimize probability of secondary disasters of the collided electric vehicle, and lower the degree of secondary disasters to the minimum.

The invention relates to a novel bunk bed comprising a lower bed body, a support frame, an upper bed body, a guard bar and a bed ladder. Bedside support columns of the lower bed body are connected with the support frame in a socket joint manner, small holes are uniformly distributed in each bedside support column of the lower bed body, the support frame in socket joint with the bedside support columns is provided with spring cotters, the lower end of the bedside of the upper bed body is connected with the support frame in a solid joint manner, the guard bar is connected with one side of the upper bed body detachably in a mortise joint manner, the bed ladder is detachably connected with the upper bed body, a socket is arranged at the joint of the upper bed body with the bed ladder, a spring cotter is arranged at the joint of the bed ladder, a protruding button is arranged at the joint of the bed ladder, the spring cotter at the joint of the bed ladder retracts by pressing the protruding button, the protruding button is released after the spring cotter is inserted into the socket of the upper bed body, and the spring cotter is clamped to the joint of the upper bed body in an extending manner. The novel bunk bed is convenient and light to move and applicable to different room heights, and can be extended to adapt to people of different heights.

A welding assembled structure of a diode in a rectifier is disclosed. Therein, a solid joint lead which is a lengthwise member with one end contacting a leader frame of the rectifier, and an opposite extended end bent and extended outward the leader frame, while having a soldering tag located at one side of the extended end. The diode has a pin with an extended end located in a restricting area defined by the solid joint lead and the soldering tag. The soldering tag is welded by a spot welding process and bent toward the solid joint lead under stress when melted at a high temperature and, so as to deform and clamp the pin of the diode together with the solid joint lead, thereby fix-clamping the pin of the diode. The diode is secured by spot welding from loosening during operation, thereby ensuring the performance of the rectifier.

The invention relates to the technical field of pipelines, and discloses a pipeline with stable joints. The pipeline comprises a top tube. A box body communicates with the bottom of the top tube in afixed manner. A sealing top ring is fixedly installed on the top wall of an inner chamber of the box body. Clamping connection devices are fixedly installed at the two ends of the inner chamber of thebox body respectively. A connecting pipe in thread connection with the clamping connection devices is arranged at the bottom of the box body in an insertion connection manner. The bottom of the outersurface of the connecting pipe is sleeved with a transverse plate in a connection manner. A round hole matched with the connecting pipe is formed in the upper surface of the transverse plate. A sliding device is fixedly installed at each of the two ends of the inner hole wall of the round hole. The sliding devices are connected with the connecting pipe. A fixed plate is fixedly installed at the bottom of an inclined rod and is connected to the outer surface of the top tube in a sleeving manner. According to the pipeline with stable joints, because the box body is installed at the bottom of the top tube, the pipeline can be connected with pipelines of different sizes, usage is very convenient, and the pipeline has more solid joints because a movable plate, a first spring and a cushion areinstalled.