110results about How to "Fast fastening" patented technology

A screw threaded fastener (103) has an elongate shank (122) with a drilling tip (104) at one end and a head (123) at the other end. A screw thread extends along at least a part of the length of the shank (122). The trailing flank (116) of the thread subtends an angle (B) relative to the axis (117) of the fastener which approaches 90° and is greater than the angle (C) subtended by the leading flank (115). The screw is for use in fixing sheets of material a1 to thin metal battens (5) and the angle between the trailing flank (116) and the adjacent thin metal section (18) of the batten (9), being reduced in comparison to a conventional thread form, lessens the distorting effect of the thread on the batten (9) under relatively high pull-out loads.

A pipe clamp 10 for repairing an underwater pipe. The pipe clamp 10 comprises a plurality of part-cylindrical portions 12,14,16 hinged together along a hinge axis or axes 27 along adjacent longitudinal edges 17,18. Two or the longitudinal edges 20,21 of the part-cylindrical portions are free. The part-cylindrical portions 12,14,16 are movable about the hinge axis or axes 27 towards and away from one another between an open position in which the free longitudinal edges 20,21 are spaced apart and the clamp 10 can be placed around a pipe and a closed position in which, in use, the free longitudinal edges 20,21 of the part-cylindrical portions 12,14,16 are brought together around the pipe. Fastening means are provided for holding the free edges 20,21 of the part-cylindrical portions 12,14,16 together, such that, in use, the clamp 10 is held to the pipe.

A pulley assembly in which either a hub or a bearing is attached in the center of one or more pulleys either by rivets passing transversely through overlapping portions of the pulley and the hub or bearing. When fastening together a hub and a pulley, the pulley has belt groove around the outer periphery and an annual web extending radially inwardly from the belt groove. A hub has a radially outwardly extending flange which overlaps the web of the pulley and in one embodiment a plurality of rivets pass through matching holes in the pulley web and the hub flange to fasten the hub and pulley together instead of using rivets, the pulley web and hub may be fastened together either with an adhesive layer or by friction welding of adjacent surfaces of the pulley web and the hub flange. When attaching bearings to a pulley an annular flange extends radially outwardly from the outer race of the bearing and overlaps a radially inwardly extending web of a pulley. The pulley and bearing can be fastened together either by rivets passing transversely through the pulley web and bearing flange or by applying a layer of adhesive between adjacent surfaces of the pulley web and bearing flange.

An implant to be fastened to a tissue, a tool a kit and a method. The implant has a first end, a second end and an elongated shank made at least partly of a first polymer material. The implant comprises a contact surface for receiving external mechanical energy for deforming the shape of the implant such that the shape of the implant can be deformed and locked in the tissue by the effect of said mechanical energy.

A quick fastening nut includes a first ring member and a second ring member. The first ring member has a bore at a center thereof and fastening portions around the bore. Each of the fastening portions has a threaded section at an inner side thereof. The second ring member has a bore at a center thereof and a plurality of stop portions, each of which has a stop face on a distal end thereof. The fastening portions of the first ring member is inserted into the bore of the second ring member that the second ring member may be moved along the fastening portions of the first ring member, and the second ring member will bend the fastening portions inwards when the second ring member is moved toward distal ends of the fastening portions.

The invention discloses a cable terminal fastening clamp, comprising a male clamp and a female clamp that are mutually independent; the male clamp is provided with a first clamping portion, the female clamp is provided with a second clamping portion corresponding to the first clamping portion, the first clamping portion and the second clamping portion can cooperatively clamp a cable, and the male clamp and the female clamp are also provided with a locking device that may lock the male clamp and the female clamp so as to cooperatively clamp a cable; two sides of a bent cable terminal can be fastened together with the clamp, and the clamp is simple in structure, convenient to operate, is suitable for cables different in diameter, and is highly universal.

The invention comprises novel apparatuses and methods for positioning and/or for determining the locations of one structural member such as a stud, rafter or joist on another structural member such as a beam during construction.

In a belt buckle device including a tongue piece (75, 76; 210; 310) connected to an end of a belt extending in a longitudinal direction and a hook member (68, 70; 220; 320) configured to be selectively connected to the tongue piece by engaging a first lateral bar of the tongue piece in a hook opening (111; 226; 326) defined by a hook portion (71, 72; 225; 324) thereof, a longitudinal dimension (B) between the free end of the tongue piece and a base end side of the first lateral bar is substantially equal to or smaller than a width (A) of the entrance of the hook opening, and the effective thickness (C) of the first lateral bar is greater than the width (A) of the entrance of the hook opening. Thus, the first lateral bar is held inside the hook opening as long as the tongue piece is kept in a flat position in a reliable manner. In particular, the first lateral bar can be freely introduced into the hook opening simply by raising the base end of the tongue piece while the first lateral bar is applied to the entrance of the hook opening so that the belt buckle device can be readily fastened even when the belt buckle device cannot be viewed from a proper viewing angle. Also, the belt buckle device can be readily fastened with a minimum dexterity requirement and very quickly.

The invention discloses a cable terminal tightening device. The cable terminal tightening device comprises a tightening device and a tightening wire clip, wherein the tightening device comprises a wire pressing body, a movable press block and a pressing screw rod; the wire pressing body comprises a connecting part and a support part; the movable press block is arranged between the connecting part and the support part through the pressing screw rod and is only performed with the linear movement between the connecting part and the support part; the tightening wire clip comprises a male clip, a female clip and a locking device; the male clip and the female clip are tightly matched with the movable press block and the support part; in the use process, a bent cable terminal is arranged between the male clip and the female clip, and then the pressing screw rod is rotated to enable the movable press block to move relative to the support part until the cable is pressed under the matching action of the male clip and the female clip; the male clip, the cable and the female clip are locked together through the locking device; finally, the pressing rod is reversely rotated to disengage the tightening wire clip from the tightening device. The cable terminal tightening device has the advantages that the cable terminal can be quickly tightened, the fixing efficiency of the cable terminal is greatly improved, the firmness is good, the structure is simple, and the universality is good.

The invention discloses a box type freight unmanned aerial vehicle, a matching system thereof and application. unmanned aerial vehicle freight, a standard cargo box generally adopted by cities or a national standard tricycle express distribution mode are combined, the box type freight unmanned aerial vehicle covers technologies such as cargo box standard, cargo bin structures, unmanned aerial vehicle navigation and flight control which are suitable for high attendance rate and low altitude flight, low altitude links and navigation monitoring systems and updating and development of a whole industry value chain such as corresponding airworthiness standard and authorized regulations, flight space managing regulations, operator training methods, unmanned aerial vehicle system design and manufacturing technology, flight application and business models. Design of box type freight of an unmanned aerial vehicle adopts carriage national standard of an express tricycle, express cargo automatic sorting engineering matching is facilitated, one-stop automatic sorting and box dividing transportation are achieved, a combined transport mode of air freight and urban express is established, time and cost of airport loading and unloading links are reduced, and development of automatic equipment of express delivery industry is promoted.

A front structure of a motor vehicle has a lower bumper that runs in the vehicle transverse direction, and an upper bumper arranged above the lower bumper. The lower bumper and upper bumper are supported on the vehicle structure via crash boxes. The lower bumper defines a closed hollow profile and is supported on a front-end body, in particular on a luggage compartment depression, of the motor vehicle via the associated crash boxes.

The invention discloses a continuous conveying double-face air drying device for eel roasting. The continuous conveying double-face air drying device comprises a conveying device, an air blowing device, an air drying bin and a filtering device; the conveying device is used for feeding eels needing to be subjected to air drying into the air dying bin, and hot air blown out from the air blowing device conducts air drying treatment on the eels in the air drying bin after being filtered by the filtering device; the air drying bin comprises an air purifying and filtering bin and an air drying mainbin; the filtering device is arranged in the air purifying and filtering bin and comprises a feeding roller, a filter felt and a winding roller; and the air drying main bin is internally provided witha gear ring, a planet gear, a center shaft and a connection rod, the planet gear is provided with a protrusion, and the protrusion can rotate into guide grooves of a four-corner rotation piece and drive the four-corner rotation piece to do angular motion. The invention further discloses an eel air drying method. The continuous conveying double-face air drying device for eel roasting and the eel air drying method have the advantages that feeding is conducted, the air drying continuity is high, automatic turning over can be achieved, and the air drying cleanliness is high.

A support assembly for holding up an expansion card on a motherboard of an electronic device includes a pedestal having a pivotal carrier pivotably coupled to an upper part thereof and comprising a horizontal trough adjacent a top. In response to insertion of the expansion card into an expansion slot of the motherboard by means of a dummy adapter, an edge of the expansion card engages a slanted surface of the carrier to turn the carrier and capture the edge of the expansion card in the trough.

The present invention is concerned with a vehicle-mounted load carrier (1) of the type which is fastened across a door, hatch (2) or the like, preferably at the rear of the vehicle (3). The load carrier comprises a load-bearing frame (4-6) and at least two gripping means (18, 19, 21, 22) disposed on the frame and intended to grip two substantially mutually opposite edges, preferably the top and the bottom edge of the door, and means (25, 26) for tensioning the gripping means across the door by the positive relative displacement thereof towards each other. The novel characteristics of the invention are that the frame is divided into a main section (4), bearing the gripping means (18, 19) for one edge, and at least one tensioning section (5, 6) disposed moveably in relation to the main section and bearing the gripping means (21, 22) for the other edge, and that the main section and the tensioning section are connected to each other in a linearly displaceable fashion, tensioning being achieved by the mutual displacement of the frame sections.

Disclosed is an adhesive mat (1) for attaching objects, comprising a smooth-surface adhesive layer (2) designed to releasably adhere to smooth surfaces. In order to be able to quickly, conveniently, and inexpensively attach objects having a smooth or metal surface, the adhesive mat (1) has an additional adhesive layer (3) which is connected in a planar manner to the smooth-surface adhesive layer (2) and which develops a releasable attachment effect on textile fabrics or on a magnetizable surface.

The invention discloses a triaxial rotating work platform for optical element detection and relates to an optical element detection tool. The invention provides the triaxial rotating work platform for the optical element detection, which can rotate triaxially and cooperate with a three coordinate measuring machine to realize the accurate measurement of an optical element form surface. The triaxial rotating work platform is provided with a worktable, a base, a worktable inclination angle regulation mechanism and a worktable fastening mechanism, wherein the lower surface of the worktable is arranged on a groove on the base; an oil groove is formed in the groove on the base; the worktable inclination angle regulation mechanism is provided with six positioning bolts; the worktable fastening mechanism is provided with a connecting rod, a connecting rod spring, transverse fastening screws, longitudinal fastening screws, a fastening wedge block and a baffle plate; the connecting rod passes through a center hole of the worktable; the lower end of the connecting rod is connected to the base by a spring, and the upper end of the connecting rod is provided with the fastening wedge block; two transverse fastening screws are arranged at side ends of the fastening wedge block; the longitudinal fastening screws are screwed into screw holes of the top part of the fastening wedge block by passing through the baffle plate; and the worktable can be locked by rotating the longitudinal fastening screws.

The invention relates to the field of fasteners, in particular to a fastening device for a temporary fastener. The fastening device comprises an actuator configured for mounting a screw; a clamping mechanism configured to be used for clamping the actuator; a tightening mechanism used for tightening or loosening the screw; and a moving mechanism connected with the tightening mechanism and used for driving the tightening mechanism to complete the tightening action. According to the fastening device for the temporary fastener, the temporary fastener, especially a large mechanism fastener, can be rapidly and accurately fixedly mounted or dismounted, and compared with conventional manual fastening or simple pneumatic fastening, the fastening device can be adjusted in a multi-stage mode in the length direction and the height direction, so that the fastening process is rapid, efficient and accurate; and under different working condition requirements, fastening and adjustment of various fasteners can be realized only by replacing a fastening tool so that the fastening device can be suitable for fasteners with different shapes.

A truss assembly for use in building construction, comprising a first truss and one or more second trusses attached to the first truss to extend transversely to a face of the first truss upon erection of the truss assembly, wherein the or each second truss is hingedly connected to the first truss for swinging movement about a substantially vertical axis between a folded configuration in which the second truss lies adjacent the face of the first truss and an erected configuration in which the second truss extends transversely to said face.

The invention discloses a multifunctional self-locking wrench. The multifunctional self-locking wrench comprises handles, wherein the handles comprise a first handle and a second handle, a first clamping part and a second clamping part are arranged at the top of the first handle and the top of the second handle respectively, a sliding block I is arranged at the first clamping part and is matched with a sliding groove I, a through hole is formed in the position, close to the bottom, of the first clamping part, a stop bolt is mounted in the through hole, and obliquely downward sawteeth I are arranged at the upper half of the sliding block I; the second clamping part comprises a movable claw and a sliding groove II which are glidingly connected with each other; when a nut or a tubular object is tightened, the obliquely downward sawteeth are arranged at the upper half of the sliding block I of the first clamping part, the stop bolt is matched with a stop block, the sliding block I is limited, the sawteeth are matched with the movable claw of the second clamping part, the nut or the tubular object is locked, and skidding is prevented, so that the nut or the tubular object can be tightened quickly and easily by the aid of the multifunctional self-locking wrench. Besides, the multifunctional self-locking wrench can also be used as a monkey wrench, an object is placed between the lower half of the sliding block I and the movable claw to be clamped, and the object is prevented from being damaged.