13results about How to "Increase radial size" patented technology

The cable reel horizontal pay-off tool comprises a support, a supporting beam, a lifting assembly, a rotating assembly, a hoisting assembly and a side supporting assembly, rollers are arranged at the bottom of the support, the supporting beam is arranged on the support through the lifting assembly, the supporting beam is controlled to move up and down through the lifting assembly, the rotating assembly is arranged on the supporting beam, and the hoisting assembly is arranged on the side supporting assembly. The hoisting assembly is arranged on the rotating assembly and is connected with the cable reel through the hoisting assembly; the side supporting assembly is arranged on the support, and the lateral force of the cable reel is borne through the side supporting assembly. A hoisting and rotating structure is adopted, the cable reel is hoisted and is matched with the side support for supporting, and therefore the cable reel can rotate and pay off conveniently. The hoisting assembly is matched with the lining bar through the expander, the lining bar is rotated outwards through the expander, so that the radial size of the hoisting assembly is increased, connection between the hoisting assembly and the cable reel is achieved, when the expander moves downwards, the lining bar resets to the vertical state due to the weight of the lining bar, operation is convenient, and the structure is reliable.

The invention discloses a handheld ultrasonic drill, and relates to the technical field of drilling machining equipment, the handheld ultrasonic drill comprises a shell, a containing cavity with an opening facing the front side is formed in the shell, and a driving unit and an ultrasonic transducer assembly which are sequentially arranged from the rear side to the front side are arranged in the containing cavity; moreover, the shell is provided with a handle, the gravity center of the handheld ultrasonic drill is located in a projection cylinder of the handle, and the projection cylinder is a cylinder formed by extending the horizontal projection of the handle in the vertical direction. According to the handheld ultrasonic drill provided by the invention, the gravity center of the handheld ultrasonic drill is arranged in the projection column body of the handle, so that the torque between the gravity of the handheld ultrasonic drill and the holding position of a user is greatly reduced, the situation that the wrist is twisted when the user holds the ultrasonic drill by a single hand is avoided, and the handheld ultrasonic drill can be held by the single hand; the problem that an existing handheld ultrasonic drill is prone to causing fatigue of single-hand operation is solved.

The embodiment of the invention provides clothes treating equipment. The clothes treating equipment comprises a box body and a barrel body assembly. The barrel assembly is arranged in the box body, and the barrel assembly is provided with a clothes processing cavity; the width of the box body in the left-right direction of the clothes processing equipment is Ymm; y / V is larger than or equal to 4.5 and smaller than or equal to 8.5. According to the clothes treatment equipment provided by the embodiment of the invention, the width of the box body is associated with the volume of the clothes treatment cavity, and / or the washing capacity of the clothes treatment equipment is associated with the width of the box body, and in the design stage, when the volume or the washing capacity needs to be increased, the volume or the washing capacity can be increased by adjusting the width of the box body; therefore, the space of the box body in the width direction can be increased, the radial size of the barrel assembly can be increased, and the volume and / or the washing capacity can be increased.

The utility model relates to a clavicle intramedullary nail, the body is hollow screw, has the hole along its axial penetration, is convenient for active insertion and allocation guide needle, screw tip does not set up cutting edge and does not have self -tapping ability, needs after the fracture proximal end wire attack and implants, the length of second threaded part, first threaded part and non-threaded part is equal, the screw rod of middle part is smooth and does not have thread design, so as to pass through the relatively narrow part of clavicle middle segment and reset narrow part broken bone block, the screw tail sets up internal hexagonal groove, and the screw head threaded pitch is consistent with second threaded part tip, prevents the shortening of clavicle caused by excessive pressure, and the end three layers thread diameter of the threaded part of screw head portion gradually increases, to provide stronger distal holding force.

The embodiment of the invention provides a box body and clothes processing equipment. The height of the box body in the height direction of the clothes processing equipment is a first size; the size of the box body in the left-right direction of the clothes treatment equipment is a second size, and the ratio of the first size to the second size is 1.0-1.6; and / or, the size of the box body in the front-back direction of the clothes treatment equipment is a third size, and the ratio of the first size to the third size is 1.0-1.6. According to the box body, the ratio of the width to the height of the box body is increased, and / or the ratio of the depth to the height of the box body is increased, under the condition that the height size of the box body is kept unchanged, the internal space of the box body can be increased, and due to the fact that the height of the box body is relatively higher, the width of the box body is increased; and the radial size of the barrel assembly can be increased. In other words, the radial size and / or the depth of the cylinder assembly in the front-back direction can be increased at the same time, so that the volume / washing capacity of the clothes processing cavity is increased.

The utility model discloses a vehicle steering gear structure, and relates to the technical field of steering gears. A vehicle steering gear structure comprises a positioning support, a circular shaft and at least one positioning structure. The positioning bracket is arranged on the outer side of the rotating shaft and is connected with the screw rod; a mounting cavity for mounting the circular shaft and the positioning structure is formed between the positioning bracket and the rotating shaft; a positioning groove for connecting a circular shaft is formed in the middle of the inner wall of the mounting cavity; the connecting end of the positioning structure is connected with the rotating shaft, and the abutting end of the positioning structure can make the circular shaft abut against the interior of the positioning groove. The steering gear structure can be switched between the steering position where the rotating shaft drives the circular shaft to break away from the positioning groove through the positioning structure and the middle position where the rotating shaft drives the circular shaft to enter the positioning groove through the positioning structure. By means of the method, a driver can have a strong neutral position feeling during steering and straight running switching, the driving experience feeling of the driver is improved, the straight running position and the steering position of the whole vehicle can be accurately and rapidly distinguished, and the operation stability of the driver is improved.

The air-cooled pressure cooker comprises an inner container and a heat preservation cover located on the outer side of the inner container, a cooling cavity is formed between the side wall of the inner container and the side wall of the heat preservation cover, an annular air channel which extends in the circumferential direction of the inner container and is enlarged in the radial size is formed in the cooling cavity, and the heat preservation cover is provided with an air passing opening opposite to the annular air channel in position. The pressure cooker further comprises an air cooling unit for exhausting and / or supplying air to the cooling cavity through the air passing opening so as to cool the inner container. According to the air-cooled pressure cooker, the probability that airflow collides with the inner container and escapes into multiple strands of airflow, the multiple strands of airflow collide with one another to bear the kinetic energy loss phenomenon is reduced, the kinetic energy loss of the airflow in the movement process is reduced, the airflow can smoothly move in the annular air channel, the heat dissipation efficiency of the air-cooled unit can be improved, and the service life of the air-cooled pressure cooker is prolonged. The probability of whistling caused by rapid collision between the airflow and the inner pot or the heat preservation cover in the high-pressure state is reduced, and the use experience of a user is improved.

This application provides a distal component and a ventricular assist device. The distal component includes an extension tube and an elastic structure. The extension tube includes a first end for connection to a cannula assembly and a second end away from the first end. The elastic structure includes a connecting portion, a supporting portion, and an elastic portion. The connecting portion is connected to the second end. The supporting portion and the connecting portion are spaced apart along the extension axis of the extension tube. The elastic portion connects the supporting portion and the connecting portion, and the elastic portion can expand and contract radially relative to the extension axis, giving the elastic structure a natural shape and a contracted shape. This distal component can replace traditional distal components, improving the positioning effect of the ventricular assist device and simplifying the manufacturing process.

The invention relates to the technical field of microelectronic devices, and in particular to a silicon carbide power device and a processing and manufacturing method thereof; the invention firstly adopts a high-temperature vapor deposition method to prepare a silicon carbide ingot, then shapes the silicon carbide ingot to obtain a silicon carbide crystal rod, then slices the silicon carbide ingot to obtain a silicon carbide wafer, then grinds, polishes, detects and cleans the silicon carbide wafer in sequence to obtain a silicon carbide substrate, then prepares a silicon carbide epitaxial layer on the upper surface of the silicon carbide substrate by a chemical vapor deposition method to obtain a silicon carbide wafer, then injects aluminum ions into the silicon carbide wafer by an ion implanter to form a P-type doping region and nitrogen ions to form an N-type conductive region of a drain and a source, and then prepares a junction barrier Schottky diode in a JFET region, etc.; the invention can effectively solve the problems of poor high temperature and high voltage tolerance, low switching speed and high production cost in the prior art.

The invention relates to a high-rigidity small-diameter electric roller easy to assemble and disassemble, which comprises a roller assembly and a motor, and the roller assembly comprises a roller body used for rotating output and a planet gear speed reducer arranged in the roller body; the planet gear speed reducer is a secondary planet gear speed reducer or a coupling gear ring secondary planet gear speed reducer; one end of the cylinder is provided with or not provided with an overrun clutch for preventing reversion; the barrel body structurally comprises a gear ring barrel body or a gear ring barrel body assembly, wherein the final-stage gear ring, used for rotation output, of the planetary gear speed reducer and the barrel body are arranged into a whole; a planet wheel disc, used as first-stage output, of the planet wheel speed reducer and a sun gear shaft used as second-stage input form an integrated disc shaft assembly, and the disc shaft assembly is supported by two bearings. The roller assembly is assembled in an inner tensioning mode or an outer pressing mode. The radial compactness and bending rigidity of the roller are improved, and meanwhile, the disassembly and assembly convenience and operation safety of the roller are improved.

The utility model provides a kind of furnace body auxiliary heating device and reaction furnace, wherein furnace body auxiliary heating device includes heat conduction sleeve, is installed on furnace body and extends into furnace body inside;Heating pipe, along the axial direction of heat conduction sleeve is set in heat conduction sleeve;Several heating furnace filaments, are around set in heating pipe outside;Lead-out wire, is connected to heating furnace filament, and along the axial direction of heat conduction sleeve leads out heat conduction sleeve;Furnace body auxiliary heating device controls heating furnace filament heating furnace body inside by lead-out wire.The utility model provides the heat conduction sleeve and heating pipe of furnace body auxiliary heating device are installed on furnace body and extend into furnace body, and the furnace body center area of reaction furnace can be assisted heating by furnace body auxiliary heating device, under the premise of guaranteeing that furnace body radial dimension increases to promote capacity, the temperature of furnace body center area is guaranteed simultaneously, promote the uniformity of temperature in reaction cavity, avoid that silicon wafer film-forming uniformity and battery piece quality decline.

The invention discloses a preparation method of an MXene-CMC composite membrane for salinity difference energy collection. The preparation method specifically comprises the following steps: step 1, preparing an MXene solution; step 2, preparing a CMC solution; step 3, putting the MXene solution prepared in the step 1 into the CMC solution prepared in the step 2, and dissolving the MXene solution through electromagnetic stirring to obtain a mixed dispersion liquid; step 4, taking a polycarbonate film, putting the polycarbonate film into a suction flask by taking the polycarbonate film as a substrate, and carrying out vacuum-assisted suction filtration on the mixed dispersion liquid in the suction flask to obtain a polycarbonate film covered with an MXene-CMC composite film; and step 5, stripping the polycarbonate film covered with the MXene-CMC composite film, and filtering water to obtain the MXene-CMC composite film for salinity gradient energy collection. The invention also discloses an MXene-CMC composite membrane for collecting salinity difference energy. The composite membrane prepared by the invention has the characteristics of high power density, good stability and high economic value.

The invention discloses a pipe clamp for a hub and a sleeve of a bicycle, which comprises arc-shaped clamping rings including a first arc-shaped clamping ring and a second arc-shaped clamping ring, the buffering ring is provided with a double-layer attaching part, and the inner ring of the arc-shaped clamping ring is in contact with the buffering ring; and in the radial outward direction of the buffer ring, the attaching part sequentially comprises a covering section and a convex tongue section, the covering section is clamped by the clamping position, and a kidney-shaped hole allowing a bolt to penetrate through is formed in the covering section. The kidney-shaped holes comprise the first kidney-shaped hole and the second kidney-shaped hole which are perpendicular to each other and attached in a crossed mode, a square through hole is formed in the overlapping position of the first kidney-shaped hole and the second kidney-shaped hole, the outline of the square through hole is square, the side length of the square through hole is smaller than the diameter of the bolt, and the diagonal length of the square through hole is larger than the diameter of the bolt. By the adoption of the buffer ring, a bicycle sleeve or a hub can be buffered and protected, the locating and tightening effect of the buffer ring is good, and the buffer ring also has the effect of improving assembly similar to that of a gasket for a bolt.