305results about How to "Increase the cross section" patented technology

A device (1) for retracting tissue with a retaining element (2) with a throughgoing cutout (7) and with a blade (18) mounted on a retractor arm (16), retractor arm (16) being seated movably in cutout (7), wherein cutout (7) of retaining element (2) is formed in a groove shape.

The invention discloses a phase-changing and temperature-regulating blended yarn and a production process thereof. The components of the blended yarn comprise outlast fiber and cotton fiber, wherein the weight ratio of the outlast fiber is 10-50 percent, and the weight ratio of the cotton fiber is 50 percent. The production process of the blended yarn comprises the following steps in sequence: dyeing loose hair, mixing hair, shredding, blowing to form roller, carding, primary drawing, intermediate drawing, final drawing, roving, spinning and winding. Due to the blending of other types of fiber for spinning, the invention can solve the problem that the pure phase-changing and temperature-regulating fiber can not easily form the yarn, improve the service performance of the fabric, simultaneously reduce the cost, and increase the added value of the product.

The invention discloses an air supply device which comprises a shell, a motor, an oblique flow wind wheel, at least one axial flow wind wheel and a volute, wherein the shell is provided with a cylindrical cavity of which two ends are open; the motor is accommodated in the cylindrical cavity of the shell and is fixed through a motor bracket; the oblique flow wind wheel is arranged at one end of a motor shaft of the motor; the at least one axial flow wind wheel is arranged at the other end of the motor shaft; oblique flow fan blades are arranged on the oblique flow wind wheel; axial flow fan blades are arranged on the axial flow wind wheel; the volute is arranged corresponding to the axial flow wind wheel and the oblique flow wind wheel and is fixed on the inner wall of the shell; the motor bracket is fixed on the inner wall of the shell or the inner wall of the volute; and an air duct is formed by the axial flow fan blades, the oblique flow fan blades and the volute. The inner space of the shell can be effectively used; and meanwhile, the noise is easily reduced to a standard range under the condition that the air quantity is guaranteed, and the air supply distance is farther. The invention also discloses an air-conditioning indoor unit.

An upright surface cleaning apparatus is operable in a floor cleaning mode and an above floor cleaning mode. The surface cleaning apparatus includes a first upstream air flow path extending from the dirty air inlet of the floor cleaning head to a downstream air flow path, and an above floor cleaning member removably mounted to the surface cleaning apparatus. The above floor cleaning member includes an alternate dirty air inlet. The surface cleaning apparatus also includes a second upstream air flow path extending from the dirty air inlet of the above floor cleaning member to the downstream air flow path. The surface cleaning apparatus also includes a valve selectively connecting the first upstream air flow path in flow communication with the downstream air flow path when the dirty air inlet of the above floor cleaning member is placed in a storage position on the upright surface cleaning apparatus.

A blood circulation assistance device (1) comprises one or more cuff elements (3) which define a chamber for receiving a blood conduit (6). The chamber is open at both ends of the one or more cuff elements (3) for the blood conduit (6) to extend therethrough. There is an aperture (22) in the side of the one or more cuff elements (3) between each end of the chamber for locating the one or more cuff elements (3) about the blood conduit (6). The one or more cuff elements (3) bear two inwardly expanding inflatable elements (4, 5) for compressing the blood conduit (6). The inflatable elements (4, 5) are disposed diametrically opposite each other across the chamber.

This invention relates to a method for erecting a main boom of a truck crane, which at least consists of a telescopic boom, with a fly jib which is braced via bracing trestles and bracing rods, and with a spatial boom bracing. In accordance with the invention, the main boom is braced by means of the spatial bracing before being completely connected with the fly jib.

The invention provides a dowel bar with a combined structure for cement concrete pavements. The dowel bar consists of a steel dowel bar, a glass steel sleeve tube and polyethylene films, wherein the inner wall of the glass steel sleeve tube is smooth, the outer surface consists of two parts, rib-shaped threads are formed in one side and firmly connected with the edge of a cement concrete plate, and the outer surface of the other side is smooth, so that the dowel bar can freely extend in adjacent grooves of the cement concrete plate. Threads are formed in one end of the steel dowel bar, one end of the steel dowel bar is tightly connected with the edge of the cement concrete plate, the outer surfaces of the other parts are smooth, the surfaces are painted and wrapped with the polyethylene films, and the bar end extends into the grooves in the edge of the cement concrete plate and can freely extend in the grooves of the cement concrete plate. The dowel bar with the combined structure has the advantages of good shearing resisting property and good corrosion resistance; besides, the stress of the contact surface with the cement concrete is uniform, the failure of the dowel bar caused by the breaking because of the cracking of the edge of the cement concrete plate is avoided, and prolonging the service life of the cement concrete pavements is benefited.

The present invention relates to a method and a device for manufacturing a blank for a round tool and to a blank for a round tool, and eventually to a method for manufacturing a round tool and to a round tool obtained. The device comprises a die for extrusion and a sleeve arrangement comprising a sleeve, and an end member for closing the sleeve in one end. Extrusion through the die continuously forms an extruded material comprising chip flutes and optionally internal coolant channels, which is received by the sleeve arrangement. The extruded material received by the sleeve arrangement is reworked and shaped to a shank portion after the interior shape of the sleeve arrangement. A projection of the end member protruding into the sleeve forms a bore in the blank. When the shank portion is finished the end member is released and moved forward as extrusion continues to form a fluted portion to complete the blank. The material waste is minimal in this process and since the internal coolant channels are formed simultaneously with the chip flutes in the fluted portion there is no risk of deforming the internal coolant channels. Moreover, a bore in the round tool removes unnecessary material and provides improved design of internal coolant channels.

The invention discloses an improved sand-blasting machine, and belongs to the technical field of machinery. The improved sand-blasting machine comprises a machine frame, a motor, a first rotating shaft, a first guide sleeve, a clamping plate, a driving air cylinder, a rotating rod, and a second guide sleeve. The first rotating shaft is in key connection with a first bevel gear; the first bevel gear meshes with a second bevel gear; the number of teeth of the second bevel gear is twice that of the first bevel gear; a second rotating shaft is in key connection with the upper portion of the secondbevel gear; the second rotating shaft is in connection with a cam; the cam is in contact with a rolling wheel in a matched mode; a plurality of sand-blasting devices are in fixed connection with theother end of the rolling wheel; a spring is in connection with the other end of the sand-blasting devices; the spring is fixedly arranged on the lateral wall of the machine frame; the sand-blasting devices are connected with a feed opening by material sending pipelines; and the feed opening is connected with a sand-storage tank. Automatic sand-blasting is achieved, and omnidirectional sand-blasting is achieved to a workpiece during sand-blasting process, and sand-blasting efficiency is high.

The invention relates to a centrifugal pump (1), in particular to a centrifugal pump for household appliances, such as washing machines or dishwashers, which comprises a pump housing (2) having an axial inlet (11), an outlet (12) and a heating element, wherein the pump housing (2) incorporates a rotatably mounted impeller (4) and a flow channel (15) enveloping the impeller (4) and heating element. The centrifugal pump (1) according to the invention is intended to have improved efficiency. This is achieved by having the flow cross-section of the flow channel (15) increase along the periphery toward the outlet (12).

The invention provides a particle size testing sample cell, which belongs to the field of particle size testing equipment fittings. The structure of the sample cell comprises a sample cell body capable of transmitting light, wherein the sample cell body has a hollow structure; the cross section of the sample cell body is an even polygon which has not less than four sides and has a working surface with at least one group of parallel opposite sides; and a convex lens is attached to the working surface of the cell body at least. When the sample cell is in use, a focal plane of the convex lens is provided with a strip-shaped array photodetector; a laser beam which is expanded and gathered is emitted into the sample cell from a lensless plane; forward scattering information of particles is detected by a common semicircular-ring detector; and the lateral scattering and backscattering information of the particles is detected by a banded array detector, and then the omnidirectional scattering information of the particles can be obtained. Compared with the prior art, the particle size testing sample cell has the maximum scattering angle of tests as 135 degrees, has no dead angle in a test range, and is large in pipeline cross section and large in flow; therefore, the sample cell is beneficial to on-line particle size tests and capable of greatly improving the analysis precision of laser particle size analyzers.

The invention relates to a counter-pressure filling device (G) for filling bottles (F) with gasified drinks (B) from a filling nozzle (8), cooperating with a closing element (V) and a seal arrangement (11) for the bottle opening (2). The closing element (V) has a full-jet nozzle (12) to generate a full jet (ST) of the gasified drink directed without contact through the bottle neck (1) to the bottle base (3), the cross-section of which corresponds to a given proportion of the inner cross-section of the bottle neck and, together with the bottle neck, defines a gas return path (W) and a fluid channel (17), at least for return gas (E), opens outside the filling nozzle and within the sealing arrangement. On filling, a free full jet (ST) is formed from the gasified drink directed without contact through the bottle neck (1) to the bottle base (3), whilst the return gas (E) is led off externally between the full jet and the bottle neck and outside the filling nozzle (8).

The invention discloses a proton transfer reaction device with a multipole rod. The device comprises a drift tube for the proton transfer reaction of a proton supplier and analyte. The front end of the drift tube is provided with a proton supplier inlet and a carrier gas introduction channel for introducing sample molecules and a carrier gas, and the rear end of the drift tube is provided with a carrier gas outlet channel and an analyte ion outlet. The sectionalized multipole rod is arranged in the drift tube and connected with a controllable boosted radio frequency power supply. By the device, the cross section of an ion beam is controlled by controlling the amplitude of a boosted radio frequency voltage loaded on the sectionalized multipole rod, so the cross section for the proton transfer reaction at the front end is enlarged and then maximal proton transfer reaction is realized; the cross section of the ion beam at the rear end is reduced, so an ion transport rate is improved, pollution of neutral molecules to a spectrum analyzer is avoided and the flexibility of the analyzer is improved.

The invention relates to a prestressed reinforced concrete special-shaped precast pile, wherein the concrete precast pile is special in shape, the center of the concrete precast pile is provided with a center hole, two ends of the concrete precast pile are respectively provided with a pile cap made from a steel plate, the shape of each pile cap is the same as the cross section shape of the concrete precast pile, one end of each pile cap is provided with a 45-degree groove, the pile caps and the precast pile are fixed by bolts, and every two concrete precast piles are connected with one another into a whole in a welding way by virtue of the pile caps; and the cross section of the special-shaped precast pile is a hexagon with three long edges and three short edges formed by cutting off three top angles of equilateral triangle or three external angles formed by outwards extending three tangent lines with arc or circular pile-shaped short edges, and the external angles are acute angles, 90-degree angles or obtuse angles. The prestressed reinforced concrete special-shaped precast pile has the advantages that the external surface area of the special-shaped precast pile is increased, so that the vertical frictional force and the vertical bearing capacity can be greatly improved; and simultaneously, the cross section is increased, so that the bending resistance of a pile body can be correspondingly increased as well, i.e., the bearing capacity of the whole pile body can be effectively improved.

The invention discloses a method and system for preparing a winding-free high-efficiency amorphous ribbon. The method comprises the steps that a plurality of small-bore small melt spraying holes are formed in a melt nozzle at certain intervals, and after a mother alloy molten mass injected out of the small-bore small spraying holes is sprayed to a rapid quenching cooling roll face, the amorphous ribbon is formed independently; the system for preparing the winding-free high-efficiency amorphous ribbon comprises a blending device, a throw-preparing device and an amorphous ribbon automatic collector. The mother alloy is heated to be molten through the high-frequency induction technology, and the alloy melt is sprayed to the cooling roll face which is provided with a transverse groove and rotates fast through the spraying holes with the diameter smaller than 1 mm, wherein the surface of the cooling roll face is polished. The alloy melt sprayed to the cooled roll face is fast cooled on the smooth roll face to form the amorphous ribbon with even thickness and width.

The element (10) has an inner annular surface (56) for torque-proof connection with a drive shaft (2) of a hydraulic machine (1), and an outer annular surface designed as a radial sliding surface. The sliding surface is formed in a bearing retainer in a sliding manner. The annular surfaces are connected with one another over an elastically deformable supporting rod. The supporting rod is elastically deformable such that bending of the drive shaft and / or misalignment in the supporting rod is compensated. The supporting rod has an annular recess formed between the annular surfaces. An independent claim is also included for a hydraulic machine i.e. axial piston pump in swash plate construction type.

The invention discloses an astragalus membranaceus slicing machine. The astragalus membranaceus slicing machine is characterized by comprising a shell, a top cover and moving wheels, wherein the bottom of the shell is supported by the moving wheels, the top of the shell is covered by the top cover, the output end of the motor is sequentially provided with a first drive wheel and a second drive wheel in sequence from top to bottom, the first drive wheel is meshed with a toothed ring, the toothed ring is arranged on a rotating disk coaxial with a drive shaft, the rotating disk can rotate aroundthe drive shaft, the end of the rotating disk is provided with blades, the second drive gear is meshed with a driven gear, the driven gear is meshed with a driving gear, the driving shaft rotates andcan drive a conical seat to rotate, the top of the conical seat is correspondingly provided with guide bodies, each guide body is evenly provided with feeding holes, locating heads can be arranged inthe locating holes, and then in the rotation process of the conical seat, the guide bodies can be driven to synchronously rotate. The astragalus membranaceus slicing machine has the advantages of being simple in structure, the thickness of sliding can be conveniently adjusted, the cross section is large, and the work efficiency is high.

An external joint part of a wheel hub synchronous fixed joint unit, wherein a wheel hub (60,90) provided with a through-opening (59,89), which includes inner corrugated toothing (54,84), is tensed with the external joint part (46,76) of a synchronous rotating joint (42,72), upon which a journal (53, 83) having outer corrugated toothing (54, 84) is formed, wherein the inner corrugated toothing (44, 74) of the through-opening (59, 89) and the outer corrugated toothing (54, 84) of the journal (53, 83) engage with each other, and a two-row wheel bearing (43, 73) is placed onto the wheel hub (60, 90), comprising an inner bearing ring (64, 94) upon which a front surface (52, 82) of the external joint part (46, 76) rests directly, wherein the ratio of the journal diameter on the base of the journal DZ and the length of the journal Lz is greater than 0.95, i.e. Dz / Lz > 0.95.

The invention relates to a motor vehicle headlamp (10) with at least one semiconductor light source (14) and a primary optical system (16) which collects light emitted from the semiconductor light source (16) and is directed to a secondary optical system (18), wherein the primary optical system (16) receives the light from the light source (14) via a light entry surface (26) and the light is emitted out via a light exit surface (28), wherein the primary optical system (16) has a connecting flange (42) with which the primary optical system is kept in a holder (34) in at least two fixed bearings (52), the fixed bearings are arranged in a first plane, which is parallel to a second plane, a distance (a) is arranged between the first plane and the second plane, and the light entry surface is arranged in the second plane. The motor vehicle headlamp is characterized in that a first section (44) of the connecting flange (42) is curved like a dome.

The invention discloses a heat absorber utilizing residual heat of boiler fume. The invention aims at providing a heat absorber which has firm structure, is conveniently connected and can more conveniently clean a pipe wall. The heat absorber comprises a housing and heat exchange pipes arranged in the housing; the heat exchange pipes are square pipes, and cross sections of all heat exchange pipes are arrayed in lines; the housing consists of lateral plates, a water tank and a gate; the upper and the lower ends of each heat exchange pipe in each line are respectively communicated with a transverse pipe, and the other end of the transverse pipe is communicated with the water tank which also serves as part of the housing; and the water tank is provided with a water inlet pipe and a water outlet pipe.

The invention relates to a device for sealing a bearing, which is lubricated with a liquid lubricant, of a rotating component. Said device has at least one inner sealing chamber (6) which runs around in the circumferential direction and one outer sealing chamber (7) which likewise runs around in the circumferential direction. The sealing chambers (6, 7) correspond via sealing gaps (9). The outer sealing chamber (7) is sealed off with respect to the environment by means of a labyrinth seal (8). The sealing chambers (6,7) have in each case at least one outlet (61,71) into the housing of the rotating component (1). During intended use, the outlet in the outer sealing chamber (7) is arranged at the lowest point of the sealing chamber (7). According to the invention, at least one second outlet(72) is provided in the outer sealing chamber (7), which second outlet is arranged above the lowest point of the sealing chamber (7) in the circumferential direction.

The invention relates to a device (1) for transporting tabular goods (2), such as sheet metal panels (3) or the like, having a transport means (4) and a retaining device (11) retaining the product (3) on the transport means (4), said retaining device being designed as a vacuum retaining device (12), the vacuum thereof acting through the transport means (4).; According to the invention, the vacuum retaining device (12) comprises at least one suction channel (19) extending in the transport direction or substantially in the transport direction and open toward the transport means (4) at least in a longitudinal segment thereof, said channel being connected at the product insertion end (21) thereof - as seen in the direction of transport - to at least one vacuum source (23), wherein an air penetration cross section (33) is present at the transport means (4) in the uncovered area of the open suction channel (19), dependent on the position of the product, and wherein a suction channel cross section (34) extending transversely, particularly at right angles, to the transport direction, if applicable dependent on the position of the product, is at most equally as large as or smaller than the corresponding air penetration cross section (33); at the product leading edge (29) of a product (2) retained and transported on the retaining device (11), at least over a partial length of the suction channel (19).

The invention discloses a push-pull water diversion valve for an engineering geologic drilling water pressing test. The push-pull water diversion valve comprises a push-pull core rod, an upper valve body, a lower valve body, a supporting seat, a ball valve seat, a moving steel ball and a steel ball ejector rod, the upper valve body, the lower valve body and the supporting seat are connected through threads to form a valve chamber, an outer pipe is connected with an end cap and the valve chamber through threads, the supporting seat and the lower valve body as well as the steel ball ejector rodform a whole inside the outer pipe through threads, the core rod and the ball valve seat are connected in the valve chamber composed of the upper and lower valve bodies through threads, and the movingsteel ball is arranged on the upper portion of the ball valve seat. A ventilation hole is drilled in the outer side of the upper valve body, two water feeding ring grooves 2 and two water feeding holes are formed in the inner wall of the lower valve, and water feeding holes in the core rod and water feeding holes of the end cap can be communicated with the water feeding holes of the lower valve body, water feeding holes of the supporting seat and an inner cavity passage of the lower valve body. The push-pull water diversion valve is simple in structure, switching and closing of water passagescan be realized by moving the core rod in the valve chamber to different positions, and working requirements on expanding plug water pressing, water pressing test, drill rod water pressure release and capsule pressure release of the drilling water pressing test can be met.

The invention relates to a vertical mill for grinding a product to be milled and a method therefor, wherein the vertical mill has a grinding plate and one or more grinding rolls. A blade ring annular channel is provided for a transport gas flow rising around the grinding plate. An annular gap is provided between a downwards projecting middlings cone and the upper range of the grinding rollers through which gap even a fines content is recirculated back to the grinding plate. To overcome this disadvantage, a barrier gas flow is provided flowing from the inside towards the outside, by means of which the recirculation of ground particles of a defined size can be prevented.

The invention relates to a double-frequency radial continuous wave Terahertz inclined injection pipe which comprise an axially symmetrical metal top plate, an axially symmetrical metal base plate, two sector-shaped electron beams, two sector-shaped metal flat slow wave structures, a coaxial output waveguide outer cylinder, a coaxial output waveguide inner cylinder, an axially symmetrical collector electrode and an external magnetic field generator; the external magnetic field generator generates a static magnetic field along radial and axial direction in a high-frequency interaction region, under guidance of the static magnetic field, the two sector-shaped electron beams are transmitted along the reverse of the radial direction, and interact with the two sector-shaped metal flat slow wave structures of different structural parameters respectively to convert kinetic energies of the two sector-shaped electron beams into electromagnetic wave energies in two different frequencies, electromagnetic waves in the two frequencies are radiated by the coaxial output waveguide, electromagnetic wave output in two different frequencies can be generated simultaneously, and the whole working frequency and tuning range of the pipe are broadened.

The invention is a method for producing a three-dimensional object in layers through stereolithography, comprising the following operations: moving a supporting surface (6a, 7a) near the bottom (2a) of a container (2) containing a liquid substance (3), so as to arrange it in a predefined operating position (17); selectively irradiating a layer (6) of liquid substance (3) with predefined radiation (4), in such a way as to solidify it against the supporting surface (6a, 7a). The approaching movement (11) comprises a plurality of approaching moves (12, 12a, 12b, 12c) having corresponding predefined lengths (13, 13a, 13b, 13c), spaced by corresponding intermediate stops (14, 14a, 14b) for corresponding predefined time intervals (15, 15a, 15b), the intermediate stops (14, 14a, 14b) being carried out when the supporting surface (6a, 7a) is at least partially immersed in the liquid substance (3).