484results about How to "Easy to buckle" patented technology

Amono-coated optical fiber that has a bending loss characteristic in which an optical loss increase at a bending radius 13 mm is 0.2 dB/10 turn or less, an optical fiber ribbon that includes two-dimensionally disposed resin portions for bonding the adjacent 2-fiber mono-coated optical fibers in plural places, the resin portions being disposed apart from each other in the longitudinal direction of the optical fiber ribbon and an optical fiber cable that includes a cable core portion that stores twisting of plural units where the mono-coated optical fibers constituting the optical fiber ribbon are collected.

An environmental protection type composite plate is composed of a honeycomb board with surface and bottom paper, the inlaid parts as reinforcing part and joint part, and the foamed plastic body for wrapping them. It is prepared through mixing raw materials, fixing inlaid parts, pouring slurry, closing mould, demoulding, cleaning mould and curing the finished plate. Its advantages are light weight, high strength and low cost.

A rigid connecting pipe to be securely fixed in a rubber hose by press-fitting has a pipe body and an annular rib on a leading end portion of the pipe body. The annular rib has a generally saw-edged cross-section and is formed in an acute angled shape. The annular rib serves as a stopper relative to the rubber hose by biting in an inner surface of the rubber hose. The connecting pipe further has a tubular support portion on a leading end thereof beyond the annular rib. The support portion supports the rubber hose from an inner surface side thereof, on a leading end beyond the annular rib while being press-fitted in the rubber hose.

Internal structure for aircraft comprising a skin (1) of composite material, some stringers (2) of composite material integrated into the interior of the aforementioned skin (1) and some frames (3) of composite material, comprising the skin (1) with some zones (4) in which its thickness (20) is greater than the thickness (10) this skin (1) has in the rest of its section, with the stringers (2) integrated into these zones (4) of the skin (1), achieving with this arrangement the isolation of the interface line (5) of the stringer (2) joint with the skin (1) from the skin (1) with thickness (10).

A power-supplying member comprises: a first rod-shaped member connected to power-supplied object; a second rod-shaped member connected to power supply; and a thermal-expansion absorbing member, which is disposed between the first rod-shaped member and the second rod-shaped member, and which shrinks in a longitudinal direction in response to changes in shape of the first rod-shaped member and the second rod-shaped member in the longitudinal direction due to thermal expansion.

Rolled T-beams of the kind used in suspended ceilings, act as vertical stiffeners in a wall liner for a back wall. The vertical stiffeners, reinforced from the back wall, keep the sheets of wallboard that form the wall liner vertically aligned and together. The weight of the wallboard liner is borne directly by the floor under the liner, without support by columns or studs.

The invention discloses turnover and material collection equipment with a flattening function. The turnover and material collection equipment comprises trays, a base, a conveying device and a turnover device. An elastic material supporting device is arranged on the base and comprises an elastic assembly and a supporting block arranged at the end of the elastic assembly. A sliding groove matched with the supporting block is formed in the bottom of each tray. The turnover device comprises a sliding material supporting device and a turnover frame. The turnover frame is used for turning over a paperboard conveyed by the sliding material supporting device and comprises a support b and a V-type turnover board rotationally arranged on the support b through a rotary rod. A spring a is further connected between the V-type turnover board and the support b. The problems that in the prior art, trays in conveying equipment have no lifting function, the multiple trays have no connection, continuous material collection cannot be achieved, and in the paperboard conveying process, the turnover function and the function of flattening the paperboard are not achieved are solved.

The invention belongs to the test loading technology, and relates to a major-diameter airframe test loading clamp. The major-diameter airframe test loading clamp comprises a butt joint end plate, a force averaging ring and skin. The butt joint end plate is of a circular ring structure matched with an airframe transition section, an inner ring and an outer ring of the butt joint end plate are surrounded by the force averaging ring, one side of the force averaging ring is connected with the butt joint end plate, the other side of the force averaging ring is connected with a loading device through the skin, and the loading device is used for exerting concentrated loads. The major-diameter airframe test loading clamp is applied to a certain type airplane wing body combined body force transmission characteristic test, accurate exertion of various loads on a butt joint end frame section is achieved, rationality of stress distribution of a butt joint end frame is guaranteed, good limitation to a tested piece is provided, and convenience is brought to tare of the loading device. In theory, the loading device and the testing technology of the loading device can achieve exertion of any load on any airframe frame section.

The invention discloses a preparation method of a bulletproof helmet. The preparation method mainly comprises steps as follows: cutting, pasting forming, prepressing, edge cutting, forming, edge trimming, drilling, bonding of edge sealing rubber strips, surface treatment, paint spraying of the inner surface, bonding of a cap lining, paint spraying of the outer surface, inspecting and packaging. The method has the advantages that a shell of the bulletproof helmet is made of aramid II/III, so that bulletproof performance of the helmet is improved, and mass of the helmet is reduced.

A dummy object is described which is particularly suitable for a functional testing of driver assistance systems for vehicles. The dummy object comprises a torso, at least one extremity representing an arm or a leg, wherein the extremity includes a proximal extremity portion mounted in an articulated manner at the torso and a distal extremity portion mounted in an articulated manner at the proximal extremity portion, and at least one drive which is arranged in the torso and is designed to move the proximal extremity portion relative to the torso. The proximal extremity portion can be moved in such a manner that a movement of the distal extremity portion, which is correlated with the movement of the proximal extremity portion, can be created by utilizing the mass inertia of the associated distal extremity portion.

The invention provides a keycap cleaning device for a computer keyboard. The keycap cleaning device comprises four hooking jaws, a rotating shaft and a cleaning strip, the four hooking jaws are fixedly connected to the four corners of the bottom of a shell, and inclined blocks are fixedly connected to the inner sides of the upper ends of the four hooking jaws; a cleaning solution cavity is formedin the interior of the shell, a solution feeding port is formed in the upper part of the cleaning solution cavity, a through hole is formed in the inner side surface of the cleaning solution cavity, and the rotating shaft is rotatably connected to the middle of the shell; and a flow guiding cavity is formed in the rotating shaft, a valve is formed in the upper end of the flow guiding cavity, two sealing blocks are slidably connected into the valve, the cleaning strip is fixedly connected to the tail end of the flow guiding cavity, and a nut is connected to the periphery of a screw rod in a threaded mode. According to the keycap cleaning device for the computer keyboard, the rotating shaft and the cleaning strip are arranged in a matched mode, the cleaning solution can be guided by the flowguiding cavity in the rotating shaft to the cleaning strip and absorbed by the cleaning strip, then the rotated cleaning strip can directly perform rapid cleaning on the upper surfaces of keycaps onthe keyboard and the positions around the keyboard, the trouble of repeatedly disassembling the keycaps is omitted, and the cleaning efficiency of the keycaps is improved.

The invention provides an assembly tool for a low-pressure turbine of an engine. The assembly tool comprises a positioning guide tool and a traction tool, and the positioning guide tool is coaxially connected with a low-pressure turbine shaft. According to the assembly tool, in the assembly process, the traction shaft sequentially penetrates through a core machine, a traction shaft sleeve and a connecting shaft sleeve and extends to the outside of a fan rotor; in the assembly process of the low-pressure turbine, the torsion is applied to the traction shaft from the outside, the traction shaftand the connecting shaft sleeve synchronously rotate, the fan rotor drives the traction shaft to axially move through threads in the rotating process, and then the low-pressure turbine shaft has dualacting force of rotation and axial movement, and a bearing cylindrical roller on the low-pressure turbine shaft is gradually assembled into a bearing outer ring in the rotating process, so that the problem that a cylindrical roller mechanically collides with a bearing outer ring in the existing assembly process is solved.

The invention relates to an integrated high-voltage electric box for a battery system. The integrated high-voltage electric box is used for installing a high-voltage electric component of the battery system therein, wherein the high-voltage electric component comprises a positive electric component, a negative electric component and a functional electric component; the electric box comprises an upper cover and an installation base; the upper cover is detachably connected to the installation base; the high-voltage electric component is arranged between the upper cover and the installation base; and one side surface, connected with the upper cover, of the installation base is provided with an installation part for installing the positive electric component, the negative electric component and the functional electric component and separating the positive electric component, the negative electric component and the functional electric component in an insulating manner. According to the electric box provided by the invention, the positive electric component, the negative electric component and the functional electric component in the high-voltage electric component of the battery system are integrated into an integral structure through the arranged installation part, so that the battery system is high in integration degree, high in space utilization ratio, small in installation space and flexible and convenient to maintain.

The invention discloses a button attaching machine. According to the technical scheme, the button attaching machine is characterized by comprising a mounting frame, button attaching devices, a feedingdevice and perforating devices; each button attaching device comprises a button attaching head and a button attaching driver; each perforating device comprises a perforating cutter and a perforatingdriver; the mounting frame is provided with a button attaching table, the button attaching table comprises two button attaching planes, and the two button attaching planes are correspondingly locatedon two opposite sides of the button attaching table; the button attaching devices and the perforating devices are both provided with two groups; the mounting frame is provided with a bag shifting mechanical arm and a bag shifting driver, wherein the sliding direction of the bag shifting mechanical arm driven by the bag shifting driver is the arrangement direction of the perforating cutters and thebutton attaching heads; the feeding device comprises a feeding hopper and two conveying rails, the feeding hopper is provided with two discharging ports, and the two discharging ports are correspondingly in communication with feeding ports of the two conveying rails; and the perforating cutters and the button attaching heads are arranged in the length direction of the conveying rails, a first avoiding component is arranged on the each of the two button attaching heads, and a second avoiding component is arranged on the each of the two perforating cutters. The button attaching machine has theadvantage that the automatic degree is high.

The invention relates to the field of pipe manufacturing, in particular to a pipe manufacturing machine for metal bellows. The pipe manufacturing machine is mainly combined by squeezing devices, an edge buckle wheel and an edge buckle wheel supporting frame, wherein the edge buckle wheel is arranged at the top end of the edge buckle wheel supporting frame, the squeezing devices are connected with a shell of the pipe manufacturing machine, squeezing heads are arranged nearby the edge buckle wheel, and the gaps are not smaller than the thickness of a steel belt. According to the pipe manufacturing machine for the metal bellows, the double edge buckle wheel of an original pipe manufacturing machine is changed to a single edge buckle wheel structure and replaced by an edge forming needle with a sharpened end, the point end of the edge forming needle forms edges through squeezing the steel belt, so that the edge buckle of the metal bellows is easier, the difficulty in manufacturing and adjusting the metal bellows is greatly reduced, meanwhile, the pipe manufacturing efficiency is improved, and the quality of the metal bellows is further improved.

The invention discloses a shaver head which comprises a frame body, a guiding roller which is arranged at the lower part of the frame body and at least one blade. The end surface of the lower part of the frame body concaves to form a guiding roller accommodating space for accommodating the guiding roller. Inner walls of two ends of the guiding roller accommodating space are respectively provided with a roller slot which is provided with an opening facing downwards. The two ends of the guiding roller are arranged into the roller slot from the opening of the roller slot. The shaver head also comprises a guiding roller outer cover which is arranged at the frame body and located under the guiding roller, and the guiding roller is pivoted in the roller slot. By the design, the coupling of the guiding roller and the head frame body is more convenient and stable. The shaver head has the characteristics of simple structure and using convenience and comfort.

The invention provides an improved structure water bath kettle, and belongs to the technical field of a water bath kettle. The improved structure water bath kettle comprises a water bath kettle body with an internal cavity, wherein a positioning hole which is communicated with the cavity of the water bath kettle body is formed in the upper end of the water bath kettle body, a heating element is arranged in the water bath kettle body, a control panel for controlling the heating element is also arranged at the outer side of the water bath kettle body, a positioning mechanism is arranged at an outer opening of the positioning hole, the positioning mechanism comprises an annular fixed ring I and an annular fixed ring II, a hinge part is arranged on the position, adjacent to the positioning hole, on the water bath kettle body, the edge of the fixed ring I is hinged to the hinge part, the fixed ring I is lapped onto the outer opening of the positioning hole, the edge of the fixed ring II is hinged to the hinge part, the fixed ring II is lapped onto the side part of the fixed ring I, the outer diameter of the fixed ring I is greater than the inner diameter of the positioning hole, the inner diameter of the fixed ring I is smaller than the inner diameter of the positioning hole, the outer diameter of the fixed ring II is greater than the inner diameter of the fixed ring II, and the inner diameter of the fixed ring II is smaller than the inner diameter of the fixed ring I. The edges of the fixed ring I and the fixed ring II are hinged to the hinge part, so that the stability of a vessel is improved by limiting the fixed ring I and the fixed ring II.