1221 results about "Structural engineering" patented technology

An electric, inductively-energized, multi-bladed, controllable-pitch propeller hub is configured with an internal battery, electronic control unit and electric internal reversible hubmotor, when energized by a voltage inducted across an air gap into an annulus of receiver coils that is mounted onto said propeller hub and when said propeller hub is attached to and operated with complementary electrical, electronic and mechanical components that enable wireless command signals, together forming a novel and versatile device whose operation can provide near-instantaneous modulation of aircraft thrust, lift and drag by the action of said propeller hub to actuate precise and equal changes to the pitch of each propeller blade through a full range of useful pitch settings, both during rotation of said propeller hub and when said propeller hub is stationary, with an innovation including a coaxial driveshaft that facilitates the removal and installation of said propeller hub from a propmotor.

The present invention relates to a foldable carton blank that, when folded, forms a carton having a partition wall for segregating products within the carton. The partition wall member may be hingedly attached to a front panel of the carton such that the partition wall member may be unattached from the front panel and extended across the bottom panel of the carton to form two compartments within the carton. A slot in the rear panel of the carton may secure an end portion of the partition wall member when the partition wall member extends across the bottom panel of the carton to form the two compartments within the carton.

An improved wall and partition construction method that is more time and cost efficient to construct than conventional methods, and that includes no exterior attachment means, thus providing a finished wall with a substantially seemless first and second surface. The improved wall is constructed by attaching rigid panels to a series of channel members each having a hat-shaped cross section generally placed in vertical orientation, along the centerline of a wall. Each channel member includes a plurality of openings that provide an interior pathway for routing utility and communication cables, and/or for containing supplemental insulation. Compressed straw panels are attached to the channel members in a slightly offset alternating manner such that each panel can be rigidly connected to a channel member by a plurality of lag screws with each penetrating the panel from the inside such that the finished wall has no exterior penetrations.

The invention discloses a detection device applied to bridge cracks. The detection device comprises a flat plate, a first flaw detection device and a second flaw detection device. The first flaw detection device is arranged at the bottom of the flat plate, a walking device is arranged at the bottom of the flat plate, and a control box is arranged on one side above the top of the flat plate. According to the invention, with the second flaw detection device, the inner side and the outer side of the side wall of the guardrail are subjected to crack detection by rotating the lifting device to change different angles; the angle of the second flaw detection device is adjusted through the angle adjusting device; crack detection can be performed on the bottom of the bridge; the inner side and theouter side of the side wall of the guardrail and the bottom of the bridge are detected through the second flaw detection device, the production and use cost is reduced, the application range of the device is widened; the first flaw detection device can move in the length direction and the width direction of the surface of the bridge, dead-corner-free detection on the surface of the bridge is realized, and the working efficiency of the device is improved.

The invention relates to the technical field of cables, in particular to an aerial optical cable. The aerial optical cable comprises a central reinforcing part, at least three loose sleeves, damp-proof layers and outer protective layers, wherein the loose sleeves are distributed around the peripheryof the central reinforcing part, the damp-proof layers wrap the loose sleeves, the outer protective layers wrap the damp-proof layers in an extrusion molding mode, and at least one optical fiber is arranged in each loose sleeve. The aerial optical cable is characterized in that a hanging wire layer is arranged outside each outer protective layer, a hanging reinforcing part is arranged in each hanging wire layer, each hanging wire layer is connected with each outer protective layer through a connection rib, the hanging wire layers on two sides of each hanging wire reinforcing part are provided with identification strips, the identification strips are embedded into the hanging wire layers and have different colors with the hanging wire layers, the hanging wire layers and the outer protective layers are distributed in parallel in space, the hanging wire layers, the outer protective layers and the connection ribs are made of the same material, and the hanging wire layers, the outer protective layers, the connection ribs and the identification strips are formed in an integrated mode. The aerial optical cable has the advantages of being easy to identify, maintain and repair, low in maintaining cost, easy to manufacture, and high in percent of pass of finished products.

The invention relates to a standard Bailey truss assembling type jacking formwork system. The standard Bailey truss assembling type jacking formwork system is characterized in that the standard Bailey truss assembling type jacking formwork system is mainly composed of a truss platform system, a hanging system and a power supporting and jacking system, the power supporting and jacking system is fixedly supported by a core tube wall, the upper portion of the power supporting and jacking system is connected with the truss platform system through lattice supporting steel columns, the hanging system is hung on the truss platform system, the truss platform system is mainly composed of a plurality of standard Bailey trusses, the standard Bailey trusses are mutually connected to form main trusses and secondary trusses, the main trusses are connected longitudinally and transversely through Bailey truss connecting pieces to form a main framework, the Bailey trusses are connected on the periphery of the main framework to form a rectangular peripheral framework, and the Bailey truss connecting pieces are connected with the upper ends of the lattice supporting steel columns. According to the standard Bailey truss assembling type jacking formwork system, the system is composed of the standard Bailey trusses, construction and assembly are fast and convenient, repeated utilization is available, and the adaptability is high.

The invention discloses a cable peeling device, which relates to the technical field of cable recovery. The cable peeling device comprises a bottom plate, wherein first fixed plates, a cutting block, a second fixed plate and a motor box are installed on the bottom plate from left to right in sequence; a first rotation roller is rotatably connected between the first fixed plates; the center of the cutting block is provided with a round cutting groove; the cutting block is also provided with a plurality of first cutting knives; the first cutting knives are installed along the radius direction of the cutting groove and can move along the radius direction of the cutting groove; a cutting cylinder is rotatably connected in the second fixed plate; one end of the cutting cylinder is provided with a second cutting knife; one end of the cutting cylinder penetrates through the motor box; the motor box provides rotation power for the cutting cylinder. According to the design, the cable can be continuously peeled, working efficiency is improved, in addition, the device automatically operates, manpower is reduced, and cost is reduced.

There is disclosed an underpinning pile to provide an efficient, simple and sure method in driving and lifting the foundation and at the same time securing the direct transference of preload without further loss of preload from the building into the newly completed driven pile. A pile anchor head (11) is provided that receives a pile (12) and is provided with a lifting means (13). The pile anchor head (11) and lifting means (13) receive the building load and transfers it to the pile (12), which allows practically any kind of material and shape of pile (12) to be used.

The invention relates to a mold, and more particularly relates to a metal plate forming mold and a forming method thereof. The method comprises the following steps that step 1: a metal plate is placedon the upper side of a convex circle seat, so that the left and right ends of the metal plate are inserted into two bottom grooves and then penetrate out of the two bottom grooves, during upward moving of two edge folding strips, the parts, penetrating out of the two bottom grooves, of the metal plate are bent upwards to complete folding of the left and right edges of the metal plate; step 2: twopressing blocks are pressed on the upper side of the metal plate to make a first electric pushing rod extend to drive a sliding block to slide downwards on a middle column, two upper seats slide towards the lower inclined part by being far away from each other to drive the two pressing blocks to slide towards the lower inclined part by being far away from each other, meanwhile, the metal plate can be stretched from the middle to both sides, and the left and right length of the metal plate is made to be longer accordingly; and step 3: an inverted-V-shaped rod moves downwards to drive the two pressing blocks to press the metal plate placed on the upper side of the convex circle seat, so that the metal plate is pressed into an arc shape.

The invention discloses a girdling and stripping device for an outer insulating sheath of a cable. The device comprises a main machine body. A left-right through cutting cavity is formed in the main machine body. A clamping delivery mechanism is arranged on the left side of the cutting cavity. A rotary delivery cavity which is through left and right and communicates with the cutting cavity is formed in the clamping delivery mechanism. Three L-shaped delivery machine arms are uniformly arranged on the inner wall of the rotary delivery cavity. According to the invention, through rotation and delivery of the delivery arm, a cable is fed into the cutting cavity, annular and linear cutting is conducted on the surface of the cable through the cutting knife, the insulation sheath of the cable iscut off, and accurate and reliable cutting is guaranteed through supporting of the supporting mechanism. Meanwhile, the cut insulation sheath is automatically separated through the peeling mechanism,and the cable and cutting waste are conveyed out respectively.

The invention relates to a bituminous pavement track field evaluation method which comprises the following steps: A, performing field track survey, namely (1) selecting a road section to be evaluated; (2) testing the track depth; and B, calculating and settling the measurement result: (1) drawing a cross-section profile and a top datum line of each lane on the section line according to a ratio of 1:1; (2) determining the track depths D1 and D2 on the drawings, and reading to 1mm, wherein the maximum value serves as the maximum track depth of the section; (3) working out the mean value of the maximum track depth of each measured section to serve as the mean track depth of the evaluated road section; (4) determining the track deformation area of each section by employing a grid method, and determining the track deformation area of the evaluated road section through a formula; and (5) calculating the track repair engineering quantity between certain adjacent sections through the formula Vi+1=(Ai+Ai+1)*Di+1/2, and calculating the repair engineering quantity of the whole road section. The field track diseases can be objectively evaluated and reliable basis is provided for determining the track maintenance and repair engineering quantity.

A curved wall structure is disclosed herein that comprises a curved footer track; a curved header track confronting and vertically spaced apart from the curved footer track; a plurality of studs having upper and lower end portions (wherein the studs are vertically positioned between the spaced apart and confronting header and footer tracks such that the lower end portions are received into the footer track and the upper end portions are received into the curved header track); and a corrugated curved wall panel having a plurality of vertically spaced apart grooves. Mineral wool (or other suitable insulation material) may be positioned between the plurality of studs and adjacent to the corrugated curved wall panel. In addition, a heat-expandable intumescent material strip may be positioned along a top portion of at least one of the downwardly extending sidewalls of the curved header track and adjacent to the first curved wallboard.

The invention discloses a processing method for a masonry wall crack. The processing method comprises the steps that plaster layers on the two sides of the masonry wall crack are shoveled away along the masonry wall crack until a masonry wall is exposed; a plurality of V-shaped grooves are cut along the masonry wall crack, the V-shaped grooves are perpendicular to the crack, and positioning holesare drilled at the two ends of each V-shaped groove, so that U-shaped tie bars are inserted into the positioning holes; cement paste is poured into the positioning holes at the two ends of each V-shaped groove, the bending parts on the two sides of each U-shaped tie bar are inserted into the corresponding positioning holes on the two sides of the crack, so that anchoring is formed between the parts, inserted into the holes, of the U-shaped tie bars and the cement paste, the U-shaped tie bar bodies are buried into the V-shaped grooves, the crack is mended with mortar in a embedded mode, the V-shaped grooves are covered with the mortar, and primary trowelling is conducted; hardware cloth is laid along the crack range, so that the whole masonry wall crack is covered, and after leveling is conducted with cement plaster, mending parts are trowelled with latex putty till to be as level as an original wall surface. According to the processing method for the masonry wall crack, it is achievedthat the crack is mended, and the development of the crack is suppressed to some extent.

The invention discloses tea leaf drying equipment which comprises a bottom plate and a drying barrel. Shock absorbing supporting columns are arranged at four corners of the bottom of the bottom plate, a suction disc is mounted on the bottom end of each of the shock absorbing supporting columns, a switch panel is arranged on one side of the bottom plate, a motor is arranged in the middle of the top end of the bottom plate, an L-shaped supporting rod is arranged on the top of the bottom plate of the side of the motor, a slide bar is arranged on one end of the top of the corner of the L-shaped supporting rod, bases are arranged on two sides of the top of the bottom plate, a first connecting column and a second connecting column are separately arranged on the top ends of the two bases, and a dustproof cover is arranged on the top of one side of the first connecting column. According to the tea leaf drying equipment disclosed by the invention, as the shock absorbing devices are arranged in the bottom of the bottom plate, when the drying equipment is in work, a connecting rod in a chute pushes a first slide block to move downward and absorbs and converts vibrational energy generated by work of the drying equipment into elastic potential energy, so that influence of vibration on tea leaf drying by a drying barrel is reduced.

A pile article having a support strand for attachment to multifilament yarn to form a velour-like pile having loosely entangled filaments in spaced apart monolithic pile rows, a helically wound package of oriented pile articles for shipping and storage, and a pile surface structure comprising pile articles arranged in spaced apart rows on a substrate to form a pile surface that may be flat or moldable, and a method for making a pile surface structure by embedding the pile articles into the backing substrate. The pile surface structures may be usefully employed in automobile mats, carpets and panels.

Disclosed is a machine tool cutting force simulation loading device so as to mainly solve the problems that prior machine tool cutting force simulation loading devices are complicated in structure, small in load and not suitable for experimenting on large high-speed numerically-controlled machine tools. The device is characterized in that the outside of a loading mandrel (4) is connected with a radial bearing sleeve (15) through rolling bearings B (18), a rotary element (16) is arranged on the outside of the radial bearing sleeve (15), a radial hydraulic cylinder (11) is arranged in a groove of the rotary element (16), a piston rod of the radial hydraulic cylinder (11) abuts against the outer surface of the radial bearing sleeve (15), and the rotary element (16) is connected with a servo motor (6) through a belt (8). An axial bearing sleeve (12) is arranged at the right end of the loading mandrel (4), and an axial hydraulic cylinder (13) is arranged in the axial bearing sleeve (12). The device has the advantages of being simple in structure, large in load range and applicable to machine tools of various types.

The invention relates to the technical field of highway construction, and discloses a soil sampling device for a highway engineering road and a using method thereof. The soil sampling device for the highway engineering road comprises a base and a sampling barrel; a supporting plate is fixedly installed on one side of the top of the base; the bottom of the sampling barrel is open; a sleeve plate is fixedly installed on one side of the sampling barrel; the sleeve plate sleeves the outer side of the supporting plate in a sliding mode; a motor is fixedly mounted at the top of the sampling barrel; a circular hole is formed in the top of the sampling barrel; a cylinder is rotatably mounted in the circular hole; a square hole is formed in the top end of the cylinder; a square rod is slidably mounted in the square hole; and a drill bit is arranged at the bottom end of the square rod. The device is reasonable in design, the drill bit is driven to rotate at a high speed and vibrate up and down while moving downwards at a low speed to drill holes in the ground, a hard soil layer can be conveniently drilled, manpower consumption is reduced, and drilled soil is conveyed into a collecting frame to be collected and stored, so automatic sampling of the soil is achieved, and the sampling work efficiency is improved.

The invention discloses a shell stripping device and a method for crushing shells of bamboo shoots. The device comprises a large bracket, a driving device and a cutter contact device, wherein the driving device is used for driving the bamboo shoots to rotate and perform reciprocating movement. The device has the advantages that the structure is compact, the size is small, the manufacturing cost is low, the shell striping efficiency is high, the flesh of the bamboo shoot is complete and clean, and the carrying is convenient; the device is suitable for being configured and used by the field operation and afamily type workshop.