37results about How to "Crimp tight" patented technology

An intravascular stent especially suited for implanting in curved arterial portions or ostial regions. The stent can include an end region which is fabricated to have a greater radial strength than the remaining axial length of the stent. Such a stent is particularly suited for use in ostial regions, which require greater support near the end of the stent. The stent alternatively can include sections adjacent the end of the stent with greater bending flexibility than the remaining axial length of the stent. Such a stent is particularly suited for use in curved arteries. The stent can also be constructed with an end that has greater radial strength and sections adjacent the end with greater bending flexibility. Such a stent prevents flaring of the stent end during insertion.

The invention provides a compression joint type power module which comprises a shell, a cover plate and an electric insulation substrate in compression joint with a cooling device. The shell is provided with a first surface and a second surface which are opposite to the cover plate and the electric insulation substrate respectively, the cover plate and the electric insulation substrate are assembled on the first surface and the second surface of the shell respectively, an annular inner groove is formed in the position of the second surface of the shell facing the periphery of the electric insulation substrate, a first elastic buffer part elastically abutted to the electric insulation substrate is embedded into the annular inner groove, and the first elastic buffer part is higher than the second surface of the shell so that the pressure of the electric insulation substrate in soft compression joint with the cooling device can be adjusted by the shell. As the elastic buffer part is embedded into the inner groove formed in the shell, a certain elastic buffer is provided, the electric insulation substrate can be protected from fracture, the pressure of the electric insulation substrate in soft compression joint with the cooling device can be adjusted, close compression joint of the electric insulation substrate and the cooling device is constantly ensured, heat resistance is reduced, and cooling efficiency is improved.

The invention relates to a connecting assembly of a USB 3.0 type optical fiber connector. The connecting assembly comprises a connecting joint, a tensile high-speed optical fiber data transmission optical cable connected with the connecting joint and a connector package housing installed on the connecting joint and is characterized in that the connecting joint comprises a tubular joint body and a pressing taper sleeve, wherein a pressing seat is arranged at the front end of the tubular joint body and matched with the pressing taper sleeve, and a tail protecting sleeve is in sleeved connection with the rear end of the tubular joint body. The tensile high-speed optical fiber data transmission optical cable comprises an outer sheath and optical fibers wrapped by the outer sheath, wherein a metal reinforcing core and a filler reinforcing layer are arranged in the outer sheath in a wrapped mode, the metal reinforcing core is formed by multiple strands of flexible metal wires, and the filler reinforcing layer is formed by filling aramid fiber. The connecting assembly is simple in structure, reasonable in setting, easy to assemble and use, good in tensile property, high in reliability and good in resistance capacity. The USB 3.0 requirement for high transmission rate within a 200-meter range can be met. The connecting assembly can be used in a severe using environment, and the stable long-term using effect of the connecting assembly is ensured.

Inhaler valve (30) comprising a gathering ring (70) comprised of a non-elastomeric polymer-material, wherein at least one annular section (110, 140, 160, 180) of the gathering ring (70) is formed to be deformable in the radial direction in order to absorb over compression of the ring outer periphery when crimping the valve (30) onto a container (20). There is also provided an inhaler container (10) with such an inhaler valve.

The invention relates to the technical field of dies, and particularly relates to a hexagonal terminal forming die, which comprises a die bottom plate. The die bottom plate is provided with a die fixing seat; an inner die seat is movably arranged in the die fixing seat; an outer die seat is fixedly arranged on the die fixing seat; a first groove and a second groove are arranged on the inner die seat; the first groove and the second groove are internally provided with a first elastic piece and a second elastic piece respectively; the first elastic piece is connected with a first crimping sliding block; the second elastic piece is connected with a second crimping sliding block; the outer die seat is provided with a third groove and a fourth groove; the third groove and the fourth groove are internally provided with a third elastic piece and a fourth elastic piece respectively; the third elastic piece is connected with a third crimping sliding block; and the fourth elastic piece is connected with a fourth crimping sliding block. The terminal is placed in the die, the terminal can be automatically crimped into a standard regular hexagon, a wire harness can be compactly crimped and is not likely to get loose, the wire is not broken, sparks are not generated in the power-on case, strong current can be borne, the manufactured wire harness terminal has high precision, the appearance is good, and requirements of a client can be totally met.

The invention discloses an isolator. The isolator comprises a cavity, a PCB is placed in the cavity, transmission microstrip lines are formed on the PCB via corrosion, and the PCB includes a main loop. The isolator transmits forward signals of the main loop and isolates backward signals, the cavity is covered with a shielding cover, the shielding cover includes a protruded cylindrical hole, the cylindrical hole is placed above the transmission microstrip lines, and the transmission microstrip lines include a ferrite, a permanent magnet and a threaded plug which are successively placed via the cylindrical hole. The isolator can avoid welding while the isolator can be small in size.

The invention relates to a crimping method applicable to large-section carbon fiber composite core wires. The method is applicable when a wire has four or more layers of aluminum conductor monofilaments. Hierarchical crimping is adopted, namely, two layers are crimped at a time from inside to outside, and crimping is carried out time by time. First, an internal carbon fiber composite core rod and two innermost layers of aluminum conductor monofilaments are crimped, then, two layers of aluminum conductor monofilaments outside the two innermost layers are crimped, and so on, until the outermost layer of aluminum conductor monofilaments is crimped. The method is applicable to large-section carbon fiber composite core wires. When a large-section wire is crimped using the method of the invention, as hierarchical time-by-time crimping is adopted, the problem that there is a gap between the inner diameter of an aluminum tube and the outer diameter of the wire under crimping deformation is solved, the wire can be crimped tightly, and the performance of mechanical connection and electrical connection between the wire and fittings is ensured.

The invention relates to the technical field of explosion-proof motor junction boxes, in particular to an auxiliary temperature measurement junction box for a YBX4 high-efficiency explosion-proof three-phase asynchronous motor. The junction box comprises a junction box base, a wiring board arranged in the junction box base, a wire passing device fixed at the bottom of the junction box base, four junction box buckets arranged on the two sides of the junction box base respectively, and a junction box cover connected with the upper portion of the junction box base, and the junction box base and the junction box cover are of a hexagonal structure. The bottom of the wire passing device is connected with a wiring terminal, and a compression nut, a metal blocking rod, a sealing ring and a metal gasket are sequentially arranged in the junction box bucket from outside to inside. The junction box is excellent in sealing performance, good in wiring effect, simple in structure and convenient in wiring, the stator is easy to replace, the use requirements of temperature measurement of the bearing and the stator of the motor can be met at the same time, and the operation safety and reliability of the temperature measurement junction box of the YBX4 high-efficiency explosion-proof three-phase asynchronous motor are ensured.

The invention relates to a firm and durable shearing machine for a metal plate. The machine is that the bottom surface of an extrusion plate is a plane which is tightly crimped to the upper end of the metal plate positioned on the upper end surface of a base. According to the firm and durable shearing machine for the metal plate, an integral extending part is manufactured through the extrusion plate at the bottom part of material pressing jaw; the bottom parts of the extrusion plate and the extending plate are planes, and contact area of the planes and the upper end surface of the metal plate positioned at the upper end of the base is large, so that the crimping is tight, the metal plate can be stably pressed when a dynamic shearing head works, and as a result, the shearing precision of the dynamic shearing head applying force is ensured; in addition, an elongation part adapted to the extending part is manufactured at the upper end of the base; therefore, a large contact area is achieved between the metal plate and the pressing jaw and the base; furthermore, the stability of the metal plate in clamping is improved, and the stability of the dynamic shearing head in working can be improved.

The invention discloses a round wire multi-branch locking connector and a connection method thereof. The round wire multi-branch locking connector comprises an electrically conductive connecting body,an input locking nut and output locking nuts; the connecting body are provided with an input screw portion and a plurality of output screw portions; an input locking tube and an output locking tube are arranged on ends of the input screw portion and each output screw portion respectively; an input locking cone section and output locking cone sections are arranged in inner holes formed in outer ends of the input locking nut and the output locking nuts; U-shaped openings are formed in the input locking tube and the output locking tubes; the input locking nut and the output locking nuts are connected to the input screw portion and the output screw portions respectively; and the input locking cone section and the output locking cone sections are pressed on the input locking tube and the output locking tubes respectively. The invention can quickly and vertically connect multi-branch round wires, can reduce the contact resistance, can prevent gaps, loosening and oxidation of a joint conductor contact surface after the hot and cold cycle of the connector, and can improve the connection reliability of the joint.

The invention discloses a novel pre-twisted supporting type T-shaped wire clamp capable of preventing wire breakage. The wire clamp comprises a wire clamp main body, a drainage plate and two groups ofsupport twisted wires, wherein the wire clamp body is sleeved on the conductor, two ends of the wire clamp body are tightly pressed on the outer side of the conductor, one end of the drainage plate is fixed in the middle of the wire clamp body, one ends of the two groups of support twisted wires are respectively wound on the conductor at two ends of the wire clamp body, and the other ends of thetwo groups of support twisted wires are wound on the lower end of the drainage plate and the drainage wire. The drainage plate is welded in the middle of the wire clamp main body, and the crimping area of the wire is changed from the original one side to two-side symmetrical crimping, so that the concentrated stress of a single side to the wire is reduced; and meanwhile, the two sides are all tightly crimped, so that the problem of water accumulation in the prior art is solved, and corrosion of the wire clamp and the wire is avoided.

The invention provides a waterproof structure and a charging gun. The waterproof structure comprises a sealing assembly mounted in a cavity and a locking mechanism which is in crimping fit with the sealing assembly to connect the sealing assembly with a shell, the sealing assembly comprises a sealing ring which is arranged in the cavity and is made of an elastic sealing material, the sealing ringis provided with a first through hole allowing a power line to pass therethrough and enter into the cavity, the hole wall of the first through hole is in sealing crimping fit with the power line, theouter side wall of the sealing ring is in abutting fit with the inner wall of the shell, the locking mechanism comprises a pressing plate in crimping fit with the sealing ring in the axis direction ofthe sealing ring, the pressing plate is provided with a second through hole allowing the power line to pass therethrough, and the pressing plate is in locking fit with the shell in the cavity. According to the waterproof structure, rainwater can be prevented from entering the cavity from the joint between the outer wall of the sealing ring and the inner wall of the shell, and therefore, the potential safety hazard caused by the use of the charging gun can be avoided.

The invention relates to a soft flexible board with high reliability and an assembly fixture thereof, comprising a soft flexible board body, a main via region and a standard pad region are arrange onthat soft flexible board body, a group of electrical networks correspond to the electrical networks of optical device pins to be fabricated or tested is arranged in the main via region, and a group ofstandard pads correspond to the electrical networks of the main via are arranged in the standard pad region. The soft flexible board body further comprises a test pad region, wherein the test pad region is arranged between the main via region and the standard pad region; A set of test pads corresponding to the standard pad electrical network is provided in the test pad area. The invention has thebeneficial effects that: by increasing the butt joint tolerance between the circuit board pad and the test pad, the poor butt joint or even misalignment of the soft flexible board body and the circuit board pad is not easy to occur when the test is carried out, so that the reliability and the yield of the optical device in the test process are improved.

The invention relates to a hydraulic double-state electromagnetic valve for an automobile braking system, and belongs to the field of automobile braking systems. The electromagnetic valve comprises a static iron core, a metal guide sleeve, a movable iron core, a reset spring, a valve body, a valve element, an upper O-shaped sealing ring, a valve element seat, a filter screen and a lower O-shaped sealing ring and has two states, one state is a normally-open state, the other state is a normally-closed state, and the normally-open state and the normally-closed state are switched at the same time. And after a coil is electrified, the switch state can be realized, the hydraulic oil runner of the braking system can be switched, and the coil is a key component of the hydraulic braking system. The electromagnetic valve has the advantages that the functions of two electromagnetic valves are achieved, system hydraulic pressure is accurately isolated, blocked and rapidly switched, a new structure can replace an original structure, function implementation is accurate and reliable, meanwhile, cost is reduced, the overall layout of the hydraulic system is improved, a normally-open valve and a normally-closed valve can be replaced, and the functions of opening the normally-closed valve and closing the normally-open valve can be simultaneously realized.

The invention relates to a flexible board for easily assembling a circuit board and an assembling fixture thereof, The flexible board comprises a flexible board body, A main via region and a standardpad region are arrange on the flexible board body, a group of electrical networks correspond to the electrical networks of optical device pins to be fabricated or tested is arranged in the main via region, and a group of standard pads correspond to the electrical networks of the main via are arranged in the standard pad region. The flexible board body further comprises a test pad region, wherein the test pad region is arranged between the main via region and the standard pad region; A set of test pads corresponding to the standard pad electrical network is provided in the test pad area. The invention has the beneficial effects that by increasing the docking tolerance between the pad of the circuit board and the test pad, the poor docking or even misalignment of the pad of the flexible softboard and the circuit board is not easy to occur when the test is carried out, so that the reliability and the yield of the optical device in the test process are improved.

The invention relates to a steel bar clamping device, and belongs to the technical field of building mechanical equipment. The device comprises a base, jaw bodies and a top plate, and a vertically-through mounting hole is formed in the center of the base; and two inclined blocks are symmetrically arranged at the two ends of the upper end face of the top plate and inserted into the mounting hole, and sliding strips are symmetrically arranged at the edges, close to each other, of the two sides of each inclined block correspondingly to form a V-shaped structure. The two jaw bodies are symmetrically arranged between the two inclined blocks, inclined grooves are formed at the ends, away from each other, of the jaw bodies, the inclined blocks are sleeved with the jaw bodies through the inclined grooves, sliding grooves are formed at the two sides of each inclined groove, sliding strips are connected into the sliding grooves in a sliding manner, jaws are arranged on the end faces, close to each other, of the jaw bodies, and a horizontal polished rod is arranged at the upper end of the base. The two jaw bodies sleeve the polished rod; and the lower end of the top plate is connected with a piston rod of a gas-liquid pressure cylinder which is connected with the base through a fixing support. The problem that an existing steel bar clamping device adopting a lead screw structure is insufficient in clamping force is solved.

The invention relates to a flexible board and an assembly fixture thereof. The flexible board comprises a flexible board body, A main via region and a standard pad region are arranged on the flexibleboard body, a group of electrical networks correspond to the electrical networks of optical device pins to be fabricated or tested is arranged in the main via region, and a group of standard pads correspond to the electrical networks of the main via are arranged in the standard pad region. The flexible board body further comprises a test pad region, wherein the test pad region is arranged betweenthe main via region and the standard pad region; A set of test pads corresponding to the standard pad electrical network is provided in the test pad area. The invention has the beneficial effects that: by increasing the butt joint tolerance between the circuit board pad and the test pad, when the flexible soft board is tested, the bad butt joint between the flexible soft board body and the circuitboard pad is not easy to occur or even misaligned press fit, thereby improving the reliability and the yield of the optical device in the test process.