10results about How to "Increase the outer diameter" patented technology

The application provides a ginseng fungus solid culture medium automatic bagging equipment, which comprises a blocking ring fixed to the end port of a discharge pipe, a pressing ring is sleeved on the discharge pipe, the pressing ring and the blocking ring have a pressing surface with equal slope, and an adjusting ring is screwed on the discharge pipe, the adjusting ring can drive the pressing ring to move towards the blocking ring to compress the bag opening of the growth bag. The application drives the pressing ring to move close to the blocking ring by rotating the adjusting ring, so as to fix the growth bag at the end port of the discharge pipe, and the convenience of fixing the growth bag is improved.

The utility model relates to the technical field of arc contact machining, in particular to a movable arc contact chamfering machining tool, and aims to solve the problems that contact claw chamfering machining of a movable arc contact is inconvenient, time-consuming, labor-consuming, low in efficiency and easy to damage. The device comprises a limiting sleeve, an expansion sleeve and an expansion shaft, the moving arc contact is inserted into the limiting sleeve, the expansion sleeve is inserted into the moving arc contact, and the expansion shaft is inserted into the expansion sleeve; a conical section is arranged on the expansion shaft and inserted into the expansion sleeve so that the outer diameter of the expansion sleeve can be increased. According to the utility model, the conical section of the expansion shaft is inserted into the expansion sleeve to increase the outer diameter of the expansion sleeve, so that the expansion sleeve pushes the contact claw of the moving arc contact and pushes the contact claw to swing in the direction far away from the axis; the limiting sleeve can limit the swing of the contact claw, and the swing angle is prevented from being too large. All the contact claws can be pushed through one-time operation, so that the working efficiency is improved, the contact claws are prevented from being damaged, and the labor intensity and the difficulty are reduced.

The invention provides a catheter, which at least comprises a polymer layer, the polymer layer at least comprises a transition structure, the transition structure is a tubular structure, the transition structure comprises a single material area and a mixed material area, any one continuous closed area in the single material area is called as a first sub-area, and any one continuous closed area in the mixed material area is called as a second sub-area. Any one continuous closed area in the mixed material area is called as a second sub-area, any section of the transition structure in the axial direction comprises at least one second sub-area, and the starting section or the ending section of the transition structure comprises at least one first sub-area and at least one second sub-area; the edge of one end of the mixed material area is an inclined surface which forms an inclination angle with the axial direction of the conduit, and the edge of the other end is a right-angle surface perpendicular to the axial direction of the conduit.

The utility model relates to a combined ring rolling mill mould, the combined ring rolling mill mould includes main roller axle, the main roller axle outside fixed cover sets up with the cover and main roller mould, the cover has two, is located the upper end and lower extreme of main roller mould respectively, through the ring plate cover setting in the cover outside, the cover restricts the axial movement of ring plate, again passes through the ring plate respectively two pin rods, the part of pin rod is exposed in the cover inside and is connected with the cover outside, the cover restricts the up and down movement of pin rod, and the pin rod also restricts the up and down movement of ring plate, fixes together with the cover and ring plate, thereby increases the outer diameter of cover, guarantees the stability of material height and material moving direction in the ring rolling process of different thickness ring class forgings, guarantees that the shape of forging conforms to the design requirement.

This application relates to the field of tunnel engineering blasting technology, and provides a shaped charge hydraulic smooth blasting device for ultra-large cross-section mountain tunnels. It includes reinforced explosive, a first shaped charge tube, a second shaped charge tube, a third shaped charge tube, half-rolls of explosive, an electronic detonator, a detonating cord, a water bag, and a sandbag. The first, second, and third shaped charge tubes are arranged coaxially in sequence, with half-rolls of explosive at both ends of each tube. The detonating cord connects the half-rolls of explosive at both ends of the shaped charge tube. The reinforced explosive is located at the end of the first shaped charge tube furthest from the second shaped charge tube, and the electronic detonator is located at the reinforced explosive. The water bag is located at the end of the third shaped charge tube furthest from the second shaped charge tube, and the sandbag is located close to the water bag. The sandbag is used to block the blast hole, and the lead wire of the electronic detonator passes through the blast hole. This application improves the blasting effect of shaped charge blasting.

The invention belongs to the technical field of cable manufacturing, and particularly relates to an airport extrusion-resistant super-flexible electric reel phase-change connection cable and a manufacturing method thereof, and the cable comprises a power wire core and a control wire core; a metal conductor of the power wire core is formed by re-stranding divided unit conductors by adopting a 0 + 5 structure, the center of the metal conductor is filled with an aramid rope, the edge gap is filled with aramid yarn, and an insulating material is extruded outside the metal conductor; each segmentation unit conductor is formed by stranding strands in a 1 + 6 structure and wrapping the strands with a polytetrafluoroethylene tape. The control wire core comprises a cable core, the cable core is formed by twisting control wire groups by adopting a 0 + 6 structure, the center of the cable core is filled with an aramid rope, an edge gap is filled with aramid yarn, and a sheath is extruded outside the cable core; the control wire group is formed by twisting insulating wire core pre-cabling, and polyester ropes are filled in side gaps; each insulating wire core comprises a conductor, and an insulating material is extruded outside the conductor. According to the cable, a conductor grouping and twisting mode is adopted, and meanwhile the tensile force and the torsion resistance of the conductors are improved by adopting a torsion-resistant structure and a material assembly.

The utility model discloses a sealing bottle cap and a packaging bottle, the sealing bottle cap comprises a cap body, the bottom side of the cap body is provided with a lower opening, and the inner side of the cap body is provided with an inner connecting structure; the sealing plug comprises a connecting section, a deformation section, an outer supporting section and a plugging section which are coaxially connected in sequence from inside to outside, the connecting section is connected to the inner top side of the cover body, and the plugging section is located at the top of the outer supporting section; the deformation section can drive the plugging section to leave the inner top side of the cover body in a natural state and enable the outer diameter of the outer supporting section to be reduced, and when the plugging section moves upwards, the deformation section can be driven to elastically deform and enable the outer diameter of the outer supporting section to be increased. The outer diameter of the outer supporting section can be increased to ensure the sealing performance with the bottle opening, and the outer diameter of the outer supporting section can be reduced to reduce the friction force when the outer supporting section is separated from the bottle opening, so that the operation is more labor-saving, and the sealing performance and the operation convenience when the sealing bottle cap is used are better considered.

This utility model belongs to the field of cable lock technology, and particularly relates to a cable telescopic lock. It includes a housing; a winding device disposed within the housing's cavity, comprising a support shaft fixedly installed within the housing, a winding wheel sleeved on the support shaft, an energy storage component disposed between the support shaft and the winding wheel, and a cable wound on the winding wheel; one end of the energy storage component is fixedly connected to the support shaft, and the other end is fixedly connected to the winding wheel; one end of the cable is fixedly connected to the winding wheel, and the other end is provided with a locking tongue; a locking device disposed within the housing, comprising a latch assembly that cooperates with the latch, and a combination lock that drives the latch assembly to open and close. Through the cooperation of the latch, the combination lock, and the latch assembly, the cable length can be quickly fixed and released, meeting the user's flexible needs for different lengths; and the combination lock design improves the device's anti-theft performance, as it can only be unlocked through correct operation, effectively preventing the cable from being accidentally operated or maliciously pulled.

This invention discloses a cantilevered aero-engine rotor structure and an aero-engine. The cantilevered aero-engine rotor structure includes a main shaft, an intermediate casing, a first bearing housing, a second bearing housing, and a power assembly. The main shaft has a support section and a load section at its two ends along its length, with the power assembly located in the load section. The first bearing housing is installed at the end of the support section furthest from the load section, and the second bearing housing is installed at the end of the support section closest to the load section. The intermediate casing is connected to both the first and second bearing housings, and the first and second bearing housings are joined around the support section to form a bearing cavity. The bearing cavity contains the first and second bearings. The first bearing is installed between the first bearing housing and the main shaft, and the second bearing is installed between the second bearing housing and the main shaft. The cantilevered aero-engine rotor structure provided by this invention adopts a 2-0-0 support scheme, which is simple in structure and has a reasonable and compact layout, simplifying the engine structure and reducing costs.

This utility model discloses a handheld observation device eyepiece structure, including an eyepiece assembly, a fixing assembly, and an eyecup. The fixing assembly consists of first, second, and third fixing brackets connected sequentially by internal screws, all of which are hidden internally with no exposed threads. The eyepiece assembly integrates the OLED assembly, eyepiece tube assembly, large-diameter diopter adjustment handwheel, and connecting sleeve into one unit, achieving low-torque diopter adjustment through a threaded pair. The tail end of the integrated flexible eyecup is directly fixed to the fixing assembly, and the front end of the eyecup is designed with a curved surface to fit a universal human face model, which not only improves the ergonomics of the product but also provides strong light leakage prevention and enhances wearing comfort. This utility model features a compact structure, strong integration, and convenient adjustment, making it suitable for portable observation devices such as night vision devices and thermal imagers.