305 results about "Accessory structure" patented technology

The invention discloses a wax injection mold for investment casting of hollow turbine blades and a method for rapidly and accurately manufacturing the wax injection mold. The mold consists of a cavity mold, a mold core and an accessory structure, wherein the cavity mold comprises an upper mold and a lower mold of a combined structure; each mold block forming the cavity mold consists of an external aluminum mold frame, an internal cast zinc alloy inlay and a conformal cooling copper pipe embedded into the inlay; a mold core positioning piece which can be decomposed at a high temperature is arranged on a longitudinal rib of the mold core; and water-soluble core blocks used for forming exhaust openings in the rear edges of the turbine blades are arranged on rear edge ribs of the mold core. The matching precision of the mold core positioning piece and the cavity mold is guaranteed by adopting a cavity mold interior running-in method, and the matching precision of the water-soluble core blocks and the cavity mold is guaranteed by adopting a cavity mold interior adhesion method. The wax injection mold disclosed by the invention is low in manufacturing cost and short in period, and the high wax pattern precision and core positioning precision can be obtained.

The invention discloses precise assembling and adjusting device and method for a detector chip of an imaging system. The assembling and adjusting device comprises a movement control system, a detection system, an accessory structure and a computer; the movement control system is composed of a translation stage, a revolving stage and a tilting table and used for adjusting the spatial positions of a device to be detected and the detection system; the detection system is composed of an autocollimation and a telecentric digital microimaging system and used for measuring the angle and positional deviation of the device to be detected; and the compute is able to control the movement of the translation stage and record the position coordinates and can also be used for acquiring an image of the device to be detected from the telecentric digital microimaging system and analyzing and calculating. The assembling and adjusting method includes the assembling and adjusting of a reference mirror, the transmission of the angle and position of the detector chip, and the assembling and adjusting of the detector chip; the measurement precision of the angle and position respectively reaches second level and micro dimension during the assembling and adjusting; and the deviation of angle and position of the detector chip can be respectively less than 1 and 0.02mm after the assembling and adjusting.

Accessory structures for connection to straps of user-wearable accessories include a module, a first strap engagement structure disposed on a first side of the module, and a second strap engagement structure disposed on a second side of the module. The module may comprise at least one of an integral accessory device and an attachment feature configured for attachment to a separate accessory device. The strap engagement structures are configured for connection to straps of a user-wearable accessory. User-wearable accessory systems include such an accessory structure and a user-wearable accessory to which the accessory structure may be connected. Methods include the formation of such an accessory structure. Additional methods include the connection of such an accessory structure to a user-wearable accessory.

The invention relates to the technical field of tunnel shield construction, in particular to a method for relieving and cutterhead repairing of a shield machine in a weathering groove. By means of the method, the problems of complex process, long construction period, high cost and the like during shield body relieving and cutterhead repairing in conventional construction are solved. The method comprises the steps of: carrying out grouting reinforcement on collapse body in front of a cutterhead, collapse body above the cutterhead, collapse body above shield tail and collapse body of an anchor cable; building water pressure of cut, eliminating counter-force of tunneling, retreating the shield body and relieving the cutterhead; drilling, exploding and repairing caverns, cleaning the excavated bin and repairing internal structure, body structure and accessory structure of the cutterhead to ensure that the shield body recovers tunneling. The method has the advantages of simple process, short construction period, low construction cost, strong applicability and the like. By means of the method, the relieving and the repairing of the cutterhead of the tunnel are successfully completed; the risk that river water backward pouring into the tunnel is avoided; the shield machine can rapidly recovering the normal tunneling; and the favorable economic benefit and social benefit are obtained.

The invention discloses a wind fin plate for improving the pneumatic performance of a bridge. The wind fin plate is arranged on an accessory structure of a main structure at a certain included angle; the wind fin plate can be designed in an equal section along the extending direction of the main structure or is divided into a plurality of sections to be arranged on the main structure at intervals; the main structure can be a girder of the bridge and the accessory structure can be a web plate of the bridge, wherein the girder of the bridge is a steel box girder or concrete box girder, and the web plate is a straight web plate or an inclined web plate; and the main structure also can be a bridge tower and the accessory structure also can be a tower column wall plate. The wind fin plate can greatly improve the pneumatic performance of the bridge, improve flutter stability and galloping stability, and effectively reduce or inhibit vortex-induced vibration so as to improve the wind resistance of the bridge; and the wind fin plate can be widely applied to members such as girders and bridge towers of bridges.

The invention discloses a box culvert advancing construction method for building a new frame bridge above an existing subway structure. The box culvert advancing construction method for building the new frame bridge above the existing subway structure includes: excavating a thrust pit in one side of a position above the existing subway structure, where the frame bridge is to be built; prefabricating a box culvert in the thrust pit, adding a balancer at the bottom of the interior of the box culvert, and guaranteeing that the sum of the weight of the balancer and the weight of the box culvert is equal to the weight of a soil mass which is excavated out; advancing the box culvert; after advancing the box culvert in place, simultaneously dismantling the balancer and constructing an accessory structure, guaranteeing that the weight of the dismantled balancer is equal to the weight of the constructed accessory structure, and then completing construction of the frame bridge. The box culvert advancing construction method for building the new frame bridge above the existing subway structure controls floating deformation of the existing subway structure through a box culvert advancing method achieved by adding the balancer during the process of constructing the new frame bridge above the existing subway structure, adopts the mode of adding the balancer during the box culvert advancing process, uses the weight of the balancer and the weight of the box culvert to make up the weight of the soil mass which is excavated out, and thereby prevents a soil body below the frame bridge from collapsing, controls deformation amount of the existing subway structure, reduces influences of construction on existing subway line running, and guarantees safe subway running.

The invention relates to a preparation method of tissue engineering skin containing hair follicles. In the invention, tissue engineering hair follicles are evenly inoculated in a tissue engineering dermal layer formed by compounding a bracket material and cells, then the tissue engineering dermal layer is covered by epidermal cells, and the tissue engineering skin containing the hair follicles is formed after culture; the invention overcomes the defects of little number of the hair follicles in the skin, no uniformity and uncontrollable quantity of the hair follicles caused by mixed injection formerly, and the prepared tissue engineering skin contains an epidermis, dermis and hair follicle type tissue structure, wherein the number of the hair follicles approaches to the natural number, the hair follicles are evenly distributed in artificial pores and develop continuously after in-vitro culture and transplantation, a multi-layer concentric circle structure is formed, an inner layer is hair papilla cells wrapt by micro-capsule membranes, and an outer layer is epithelium class cells; and the skin cultured in vitro or transplanted in vivo finally forms functional skin containing a hair follicle accessory structure, and the regeneration of the hair follicles after skin transplantation can be realized.

The invention discloses a method for accessing a spatial grid object of a database, which comprises the following steps: establishing a user primary table having a grid list and a grid block accessory structure supporting an in-line storage mode and an out-of-line storage mode; establishing a new spatial grid object, assigning a storage mode, and inserting the spatial grid object into the grid list of the user primary table; importing pixel data, executing in-line block write-in or out-of-line block write-in through a block write-in driver according to the storage mode; and establishing a grid pyramid. A corresponding reading method comprises the following steps: accessing the grid list of the user primary table, reading the spatial grid object, including the storage mode; and executing in-line block reading or out-of-line block reading through a block read driver according to the storage mode. By designing a block recording sheet and a block file tree with the peer-to-peer structure under a database environment, the method for accessing the spatial grid object of the database realizes in-line and out-of-line based peer-to-peer access framework for the pixel data, and solves the problem that the storage and access efficiency of the spatial grid data are poor by adopting a database mode.

The invention discloses connection structures between foundation pit support piles and outer walls of a basement and a construction method. Each structure comprises a top beam (2) and an outer wall (3) of a basement, wherein a concrete bracket (4) protrudes out of the outer surface of the outer wall (3) of the basement; a concrete ring beam (5) is arranged on the top surface of the top beam (2); and a cross beam (5.2) of the concrete ring beam (5) presses the top surface of the concrete bracket (4). The construction method is characterized by pouring the concrete bracket (4) after pouring the outer wall (3) of the basement and then pouring the concrete ring beam (5) on the top beam (2) so that the cross beam (5.2) of the concrete ring beam (5) presses the top surface of the concrete bracket (4). The connection structures and the construction method have the following beneficial effects: wastes of such accessory structures as the foundation pit support piles (1), the top beams, circuit purlins and the like after construction of the basement structure can be avoided and the number of anti-buoyancy piles can be reduced.

The invention provides a bulk acoustic wave resonator which comprises a substrate, an acoustic mirror structure, a lower electrode, a piezoelectric film structure and an upper electrode which are sequentially arranged from bottom to top. The upper surface and/or the lower surface of the upper electrode and/or the lower electrode are/is provided with an accessory structure, and the accessory structure is provided with protrusions or pits in the direction perpendicular to the surface of the upper electrode.

A memory OLAP What-if analytical method based on a difference table includes: A. when a user expresses an inquiry request through a graphical interface and inputs assumed data, converting the graphical expression of the user into MDX statement to be submitted to an OLAP server, and simultaneously storing the assumed data in the difference data; B. analyzing a piece of MDX statement into SQL statement and generating a What-if data view by the combination of a user inquiry view and the difference table; C. connecting the What-if data view with a new dimension table and variously assuming the connected assumed view; and D. after the What-if analysis is finished, deleting the difference table and related accessory structure from a database.

The invention belongs to the field of structural steel construction, and particularly relates to a method for assembling and locating an intersecting round pipe. The method comprises the following steps of (1) intersecting opening round pipe cutting programming, (2) joint component drawing deepening design, (3) round pipe intersecting opening locating cutting, (4) intersecting round pipe assembling and locating and (5) joint component size check and acceptance. The method is suitable for processing and manufacturing in the assembling and locating process of round pipe intersecting openings in various shapes, and comprises the steps of locating intersecting openings of the round pipe and round pipe intersecting joints and locating intersecting openings of the round pipe and flat plate intersecting joints. Meanwhile, the method is further suitable for locating a bending circle of the intersecting opening round pipe and an intersecting opening round pipe auxiliary structural part.

A decking system is made up of a variety of decking boards and other components are disclosed. In some aspects, the decking boards are connectable to each other so that adjacent boards will provide a water barrier and a drainage channel. Some versions of the boards may have a hollow region to accept the provision of heating elements or other accessory structures. A connector piece is disclosed in various embodiments span the gap between the butt ends of the boards to provide a water barrier at the butt ends of the boards. A gutter and downspout system is disclosed, as well as structures for protecting the ends or sides of the deck structure.

The invention discloses a construction method for connecting a subway station and a long-span accessory structure and relates to the technical field of engineering construction. The construction method includes steps of building an accessory structure retaining pile and a top beam, and excavating earth till the bottom of the top beam; according to a position requiring steel support in a foundation pit, marking a steel support erection pile position and a main structure retaining pile which needs to be broken down firstly; cutting reinforcing concrete on a connection portion between the main structure retaining pile and the top beam; erecting the steel support when the earth of the foundation pit is excavated till marked height of the steel support, and then excavating till the bottom of the foundation pit; breaking down the marked main structure retaining pile which needs to be broken down firstly, and building a base plate of the accessory structure and a first base plate post-cast strip; and after the base plate and the first base plate post-cast strip are finished, and strength of the base plate meets detaching requirement of the steel support, detaching the steel support, breaking down the rest main structure retaining piles, then building a second base-plate post-cast strip to be connected with the main structure, and sequentially building the rest structures from the bottom up.

The invention discloses a piezoelectric electromagnetic vibration power generation device, and the device comprises a bistable piezoelectric cantilever beam, an electro-magnetic structure and an accessory structure. One end of the bistable piezoelectric cantilever beam is fixed, and a piezoelectric layer is pasted at the root of a basic layer. Lead wires are respectively led out of the upper surface of the piezoelectric layer and the surface of the basic layer. The piezoelectric cantilever beam vibrates under the action of environment vibration excitation to generate a voltage. A magnet II makes vertical reciprocating motion in a coil, and generates a variable magnetic field around the coil, thereby generating an induction voltage in the coil. The magnet II makes vertical reciprocating motion to drive a magnet I to move, enables the piezoelectric cantilever beam to make complex movement under the joint action of the environment vibration excitation and a magnetic force, and generates bigger electric energy. The movement of the magnet I drives the magnet II to move, thereby greatly improving the electromagnetic power generation efficiency. The device effectively combines the bistable piezoelectric power generation and electromagnetic power generation for complementation, thereby greatly improving the overall electro-mechanical conversion efficiency of a system, and greatly improving the power generation capability of the system.

The invention provides a method for shield expanding construction of a subway station. Working pipes are constructed at the two sides of a shield tunnel by means of the pipe jacking technology, and soil deformation is reduced in the construction process; shield segments are connected with the working pipes to serve as a top supporting pipeline by means of the curved pipe jacking method in a tunnel, a subway station top supporting structure can be formed through one-time excavation, and the construction process is simpler; finally, concrete is injected into the top supporting pipeline, the working pipes and vertical supporting pipes to form a supporting structure for the whole station, and then the shield segments are detached and a second lining of the station and an accessory structure are constructed. The method has the advantages that construction efficiency is high, the process is simple, the influence of station excavation on city environment is reduced greatly, shield subway construction efficiency is improved, construction cost is reduced, the method is adaptable to the shallowly-buried and complicated geological condition of a city, the subway station constructed with the method is high in structural strength, and supporting is safe and reliable.

The invention discloses a construction method for replacement of a blast furnace shell in a blast furnace overhaul project. The construction method comprises the following steps: a new blast furnace shell is divided into sectional combining structures, and a lifting support frame and a pushing trolley are erected on the pushing side of a new blast furnace outside a cast house; a lifting device iserected on a blast furnace top rigid frame, a plurality of furnace body frame platforms on the upper surface of the pushing side of an old furnace shell and the wall surface and roof of the cast houseon the pushing side are dismounted, a pushing channel for the new furnace shell is erected, and the old blast furnace shell and accessory structures to be replaced are dismounted; the lower half of the new blast furnace shell is hoisted with a sequential method; the upper half of the new blast furnace shell is hoisted with a reverse loading method, and the upper half and the lower half of the newblast furnace shell are connected. According to the construction method for replacement of the blast furnace shell in the blast furnace overhaul project, influence on overall stability and bearing capacity of the furnace body frame can be reduced, and the problem of incapability of large crawler cranes to enter for operation is solved.

The invention relates to an accessory structure of power transmission equipment, in particular to a switch cabinet door support structure used for locating the opening state of the switch cabinet door. The structure is characterized in that a locating plate is fixed on a horizontal beam of a switch cabinet door frame; a straight groove is arranged on the locating plate; a locating hole is arranged at the rear end of the straight groove; a connecting rod is arranged at the inner side of the cabinet door; the rear end of the connecting rod is hinged with the cabinet door and the front end thereof is connected with a pin; the pin is divided into an upper limiting segment, a locating segment, a guiding segment and a lower limiting segment from top to bottom; the diameter of the upper limiting segment is more than that of the locating hole at the end; the diameter of the locating segment is less than that of the locating hole at the end and more than the width of the straight groove; the diameter of the guiding segment is less than the width of the straight groove; the diameter of the lower limiting segment is more than that of the locating hole at the end; and the pin passes through the locating plate and the guiding segment of the pin can slide along the straight groove. The structure has simple structure, is convenient to manufacture and install, not only facilitates installation and maintenance of the switch cabinets but also eliminates the potential safety hazards of field installation and maintenance.

The invention discloses a large-sized steel structure integral translation and hoisting combination construction process, which is characterized in that a large-sized steel structure is divided into a plurality of roof truss internodes, and comprises the following steps that: A. internodes assembling the plurality of roof truss internodes on a translation device, and adopting the plurality of roof truss internodes which are assembled on the translation device as a section; B. utilizing the translation device to move the plurality of roof truss internodes which are used as the same section to a hoisting position; C. and utilizing a hoisting device to integrally hoist the plurality of roof truss internodes of the same section to a designed position so as to assemble and join the connection of the roof truss. The process solves the problems that when constructing the large-sized steel structure that the size of the integral structure is large, the span of a specially-shaped structure is large, the control difficulty of the structure stability and deformation is large, the restriction on the peripheral environment and the additional structure is multiple, the cross of the previous and the next procedures is multiple, the node structure is unique, and the like, and has the advantages of high installation precision and short construction period.

The invention relates to the technical field of design of accessory structures of missile seekers, in particular to a rapid docking mechanism for a target stimulator bow cap and a seeker. The rapid docking mechanism for the target stimulator bow cap and the seeker comprises a lifting trolley, wherein lifting and descending of a lifting platform of the lifting trolley are controlled by a hydraulic lifting mechanism, the target stimulator bow cap is arranged on a lifting platform of the hydraulic lifting mechanism, and a push rod is arranged on the lifting trolley. According to the rapid docking mechanism for the target stimulator bow cap and the seeker, docking between the target stimulator bow cap and the seeker is convenient and rapid, and can be achieved in a quite short time, operation carried out by a plurality of persons is not needed, accurate docking is achieved through the lifting trolley with the hydraulic lifting mechanism and a two-dimensional micro-adjustment device, and the security coefficient is high.

The invention discloses a locking accessory, a backlight module and a liquid crystal display device. The locking accessory for fixing a printed circuit board (PCB) on a back board is characterized in that a clamping structure is arranged at the top of the locking accessory which is fixed with the PCB; and a fixing structure used for fixing the locking accessory on the back board is arranged at the root of the locking accessory. Since the independent locking accessory structure is adopted, the locking accessory can be used for selectively and fixedly installing the PCB on the back board at positions at which the PCB is required to be fixed, the standardized and universal design of the backboard can be realized and the cost is reduced; and moreover, since the clamping structure is adopted between the locking accessory and the PCB, compared with a screw fixation method, riveting method and the like, the installation efficiency is higher, the production efficiency is improved and the cost is further reduced.

The present invention relates to a long-span arch tunnel partly bright and partly dark construction method. The method comprises the steps of: according to construction, performing field layout survey; performing pilot tunnel in the process of construction, pouring a middle wall after the pilot tunnel is cut through; arranging a dark hole section lead pipe shed; arranging mini pile grouting reinforcement soil bodies at two sides of the tunnel; constructing a partly bright and partly dark section vault and cover arch cover plate; employing a benching tunneling construction method to construct left and right holes of the tunnel, and constructing temporary inverted arches of the left and right holes; dismounting the temporary inverted arches of the left and right holes, and constructing archwall secondary lining for the left and right holes; constructing a tunnel accessory structure, and completing the construction. The long-span arch tunnel partly bright and partly dark construction method is a construction method suitable for an extreme condition with a relatively high road grades, without a road change condition and that an undermining method cannot be employed for construction. The long-span arch tunnel partly bright and partly dark construction method overcomes the limitation of the traditional construction method, avoid large engineering risk and ensure the normal pass of the roads during the tunnel construction.