51results about How to "Increase the degree of stress" patented technology

The invention discloses a fiber-fabric-composite-material structural piece. The shape of the structural piece is tubular, and the tubular structural piece is a fiber-fabric-composite-material honeycomb tube supported by a fiber-fabric composite material. The fiber-fabric composite material is prepared into the honeycomb-shaped-support tubular structural piece, when the structural piece prepared with a method is stressed, bearing force can be distributed all honeycomb-shaped branches and are evenly distributed on the structural piece, and the whole stress degree of the structural piece is enhanced; a common carbon fiber composite material can bear high pressure, but the pressing bearing capacity is low, an in-tube support of the structural piece is achieved through the honeycomb-shaped carbon fiber fabric composite material, the structural piece can bear pressure to a certain degree, and the stress range and the stress direction of the structural piece are widened. According to the fiber-fabric-composite-material structural piece, the structural piece is prepared into a honeycomb shape, compared with a solid structural piece, in the fiber-fabric-composite-material structural piece,materials and the weight are reduced, the cost is saved, and meanwhile compared with a hollow structural piece, the fiber-fabric-composite-material structural piece has the higher stress capacity.

The invention discloses a novel tunnel construction supporting device. The novel tunnel construction supporting device structurally comprises a supporting plate, a telescopic bracket, a passage archeddoor, a bracket fixing plate, a fixed base, a connecting sleeve frame, movable hinges, a folding bracket, an adjusting rod, a screw rod, a positioning pin, a positioning hole and an adjusting nut. The novel tunnel construction supporting device has the beneficial effects that the middle opposite angles of the telescopic bracket are in threaded connection with the screw rod contained in the adjusting rod, and penetrating is achieved; movable hinges are arranged on the corners of the telescopic bracket so that angle adjusting of the corners can be conducted; transverse opposite angle distance control of the telescopic bracket is realized according to rotating of the screw rod, so that the vertical opposite angle distance of the telescopic bracket changes, in this way, telescopic control onthe supporting plate is achieved, adjusting of the supporting angle, the distance and the fit degree by construction staff can be effectively facilitated, supporting hanging points are avoided, and safety of tunnel construction is improved.

The invention discloses a blast furnace warm air pipe with high thermal shock resistance. The blast furnace warm air pipe with the high thermal shock resistance comprises a steel shell, a fire resistance layer, a fixing anchor and a reinforced rib plate, connecting flanges are fixed to the two ends of the steel shell, and mounting holes are formed in the connecting flanges; the reinforced rib plate is arranged on the inner wall of the steel shell, a support is fixed to the inner wall of the steel shell, and the fixing anchor and a liner holder are welded to the support; and a thermal insulation layer is arranged in the steel shell, the thermal insulation layer is fixed to the inner wall of the steel shell through the fixing anchor on the support, the liner holder is fixed to a position, between the inner wall of the steel shell and the outer wall of the thermal insulation layer, of the support, and the fire resistance layer is arranged on the inner wall of the thermal insulation layer. The blast furnace warm air pipe with the high thermal shock resistance is convenient to mount, improves the laying efficiency of the blast furnace warm air pipe, is stable in structure, and has excellent thermal shock resistance at a high temperature.

The invention relates to an ultra-thin bridge deck structure, truss bridge and construction method of truss bridge. The bridge deck structure comprises a bridge deck, a plurality of transverse ribs arranged on the bottom surface of the bridge deck and parallel to the width direction of the bridge deck, and a plurality of longitudinal ribs arranged on the bottom surface of the bridge deck and parallel to the length direction of the bridge deck, wherein the plurality of transverse ribs are uniformly distributed along the length direction of the bridge deck, and the plurality of longitudinal ribsare uniformly distributed along the width direction of the bridge deck; the transverse rib is provided with a first prestressed reinforcement hole channel and at least two transverse reinforcement bars, the first prestressed reinforcement hole channel is gradually away from the bridge deck from the outside to the inside, and the transverse reinforcement bars are positioned below the first prestressed reinforcement hole channel. The bridge deck structure of the invention is in the form of dense grid formed by interweaving longitudinal and transverse ribs, and then forms an integral bridge deckstructure with the bridge deck. Compared with conventional steel-concrete composite bridge deck structure and ordinary concrete bridge deck structure, its overall stiffness is large and its weight islight, and its superior performance is prominent, thus realizing the function of ultra-thin bridge deck and lightening dead weight.

The invention discloses a building piling device with the depth convenient to adjust and a using method thereof, and relates to the technical field of building construction piling equipment. The problem that the stress degree of a pile body cannot be adjusted is solved. The building piling device with the depth convenient to adjust comprises a machine body, wherein a fixing seat is fixedly connected to the outer wall of the top of the machine body, a motor is fixedly connected to the outer wall of the top of the fixing seat, a winding roller is arranged on the outer wall of one side of the fixing seat, and the input end of the winding roller is connected with the output end of the motor through a connecting shaft; a pile hammer is connected to the outer wall of the winding roller through a rope, positioning plates are fixedly connected to the outer walls of the two sides of the pile hammer correspondingly, and baffles are arranged on the outer walls of the tops of the positioning plates. The using method of the piling device comprises the following steps that telescopic movable supporting legs are adjusted to fix equipment after the equipment is pushed to a destination. According to the combination of adjusting the height of the pile hammer, installing a top plate and installing an elastic rope, the piling depth can be flexibly adjusted, so that the piling efficiency is improved, and the construction period is shortened.

The invention discloses a carbon-fiber fabric composite material complete vehicle frame. The carbon-fiber fabric composite material complete vehicle frame is prepared from a three-dimensional frame, which is prepared by splicing carbon-fiber fabric composite material honeycomb tubes supported by carbon-fiber fabric composite materials in an annular shape; interior supports of the honeycomb tubes are star-like supports; annular supporting frames are in honeycomb holes of the star-like supports in the honeycomb tubes; and the annular supporting frames consist of winding tubes or weaving tubes. According to the carbon-fiber fabric composite material complete vehicle frame, tubular structural parts of the honeycomb-like supports prepared by using the carbon-fiber fabric composite materials arespliced with joints to form the complete vehicle frame; therefore, when the vehicle frame is stressed, the stress on the vehicle frame can be distributed to each branch of the honeycomb shape and canbe uniformly distributed on the structural part to enhance the integral stress level of the structural part; and as the support of the structural part is honeycomb-shaped, the material and weight ofthe structural part are reduced when being compared with the material and weight of a solid structural part, the cost is saved, and the structural part realizes stronger stress capability when being compared with the solid structural part.

The invention discloses a corner connector which comprises a first connecting piece, a second connecting piece and a guide pillar. A sliding chute is arranged in the first connecting piece, the secondconnecting piece is arranged in the sliding chute, a fixing hole is arranged in the second connecting piece, a guiding groove is arranged in the sliding chute, the guide pillar is arranged in the fixing hole and is fittingly connected with the guiding groove, and the axial direction of the guide pillar is identical to the direction of the sliding chute; the second connecting piece can slide in the sliding chute along the direction of the guide pillar. By the arrangement of the first connecting piece and the second connecting piece, matching with different profiles on two sides can be facilitated, connecting effect is achieved, and convenience in mounting and high universality are achieved; when an external force is applied to the second connecting piece, the second connecting piece can besqueezed to advance to the direction of the guiding groove so that the second connecting piece is always kept close fit with the first connecting piece, overall stress of the corner connector is uniform, and long service life is guaranteed.

The invention provides a clamping device capable of conveniently clamping a ball valve body. The clamping device is provided with a first support seat and a second support seat which are mounted on a work bench; the first support seat is provided with a first bottom plate mounted on the work bench, and a first vertical plate perpendicularly arranged on the first bottom plate; the second support seat is provided with a second bottom plate mounted on the work bench, and a second vertical plate perpendicularly arranged on the second bottom plate; the first vertical plate and the second vertical plate are oppositely arranged; a pair of crescent first clamping jaws in parallel are perpendicularly arranged on the first vertical plate; the second vertical plate is provided with a connecting shaft in a penetrating manner, and the connecting shaft is connected with a piston of a hydraulic cylinder and can move in a direction perpendicular to the second vertical plate; one end of the connecting shaft is connected with a crescent second clamping jaw; the ball valve body is clamped by virtue of crescent recesses of the pair of first clamping jaws and the crescent recess of the second clamping jaw from two sides.

The invention relates to the field of highway bridge construction, in particular to an oblique prestress bridge deck pavement structure and a construction method thereof. The oblique prestress bridgedeck pavement structure comprises concrete; multiple prestressed tendons which are horizontally laid and obliquely arranged with the length direction of the bridge deck as the reference to form an oblique prestressed tendon pavement layer, wherein steel strands with the diameter being 15.2 mm are adopted as the prestressed tendons; constructional steel bars which are transversely arranged in the oblique prestressed reinforcement pavement layer in the height direction, and parallel to the long edge of the oblique prestressed reinforcement pavement layer; and stirrups which are used for fixing the constructional steel bars and are perpendicular to the constructional steel bars. By the adoption of the oblique prestress bridge deck pavement structure and the construction method thereof, the problems that in the prior art, a reinforced concrete pavement layer is prone to cracking, and unreliable performance of a reinforced concrete bridge deck structure is prone to being caused are solved.

The invention discloses metal part surface treatment apparatus and method, and belongs to the technical field of metal parts. The metal part surface treatment apparatus comprises a base, a cylindrical block is fixedly connected to the top of the base, first right-angle plates are fixedly connected to the left side and the right side of the cylindrical block, and a second right-angle plate is fixedly connected to the back face of the cylindrical block; and the base comprises a first motor, a circular plate, a connecting block, a first rolling wheel and a circular disc. According to the metal part surface treatment apparatus and method, a rotating assembly is adopted; the rotating assembly rotates under the influence of a rotating rod, a grinding block rotates through a circular block after being influenced by friction force, and a first spring located on a first arc-shaped rod is squeezed during rotation, at the moment, the grinding block is in a stress compression state, then the grinding efficiency can be improved to a certain degree during grinding; a second rolling wheel can rotate in an arc-shaped groove, the grinding block can be limited within a limited range, so that the situation that the grinding block collides with a rotating flange plate after excessively descending is avoided.

The invention relates to a lighting appliance, and discloses an LED lamp which comprises a lampshade and a base connected with the lampshade, a photoelectric module is arranged in a first containing space formed by the lampshade and the base, a light source module comprises a light source module and a power module, the light source module comprises a first chip area and a second chip area, and a part of the power module is located between the first chip area and the second chip area. The LED lamp has the advantages of being thin in thickness, excellent in light-emitting effect and good in heat dissipation performance.

The invention discloses a deep cleaning tool and a preparing method thereof. The deep cleaning tool comprises a handle, a deep cleaning brush head and a length-adjustable connecting rod which is usedfor being connected with the handle and the deep cleaning brush head and used for providing a cleaning liquid for the deep cleaning brush head; the handle is internally provided with a water pump anda power supply, one end of the length-adjustable connecting rod is detachably connected with the handle, the other end of the length-adjustable connecting rod is detachably connected with the deep cleaning brush head, and a cleaning liquid inlet and a cleaning liquid outlet are formed in the handle. The preparing method of the deep cleaning tool comprises the steps of 1, preparing the deep cleaning brush head; 2, adopting the length-adjustable connecting rod for connecting the deep cleaning brush head to the handle, and connecting a cleaning liquid conveying hose extension tube on a cleaning liquid conveying hose penetrating out of the handle. The deep cleaning tool is novel and reasonable in design, convenient to achieve, low in cost, convenient to carry, use and operate, low in water consumption, complete in function, capable of achieving an excellent concave and convex point cleaning effect, high in durability and practicability, and convenient to apply and popularize.