1430 results about "Large head" patented technology

The invention provides a reciprocating type three-cylinder plunger pump for an oil and gas field. The reciprocating type three-cylinder plunger pump comprises a gear box assembly, a power end assemblyand a hydraulic end assembly which are transmitted in sequence; and the hydraulic end assembly comprises a disc root and a plunger, the power end assembly comprises a crankshaft, a connecting rod, asliding rail and a crosshead, power is transmitted from the crosshead to the plunger, a pull rod and a fender are arranged between the plunger and the crosshead, the pull rod is fixed on the cross head, the plunger is fixed to the pull rod, the fender is located between the pull rod and the plunger and fixed with the plunger, and the outer diameter of the fender is larger than that of the plungerand the pull rod. The reciprocating type three-cylinder plunger pump can solve the problems that a working medium in a hydraulic end assembly in the prior art is poured into a power end assembly alongthe plunger, a packing is inconvenient to replace, and a connecting rod large-head bearing bush is insufficient in lubrication and the like.

A connector structure with a detachable mounting tube comprises a mounting pipe with an inner sliding pipe detachably secured to an end of a connector. The connector structure not only can be provided for insertion of an ordinary screwdriver head to carry out screwing and unscrewing operation. Further, when the mounting tube is detached from the connector, a special tool head with a big head and a short length can also be inserted in the connector, thus overcoming the conventional technique bottleneck of needing two different connectors. Besides, the mounting tube is detachable from the connector, for the sake of simplification, the sliding pipe and the mounting tube are integral with each other.

An implant assembly for proximal femur fracture comprises of a targeting device and intramedullary nail having plurality of proximal holes directed towards head and neck of femur wherein the axis of the holes makes an ante version angle of about 5° to 20° with the horizontal plane and at the same time axis of plurality of distal holes making 90° angle to longitudinal axis of said nail that holds the femur wherein said nail has reducing cross section area from thigh end to knee end with grooved knee end with anterior curvature even in short length version, plurality of proximal sliding hip pins with smooth shaft for collapsibility, triflanged end with mores taper to hold proximal femur, large head and washer to get impaction and plurality of distal locking screw to hold distal fragment of femur, optional buttress plate and barrels supporting lateral cortex to get controlled limited guided collapse.

A replacement assembly of a handle tool comprises a handle having an axial receiving hole; an adjusting ring; the adjusting ring being formed with a stop block; an driving head having an annular recess; a retaining cylinder installed at one end of the receiving hole for confining the adjusting ring; the retaining cylinder having a positioning hole for receiving the driving head; the retaining cylinder having at least one through hole which is communicated to the positioning hole. The stop block enters into the annular recess of the shaft from the through hole of the retaining cylinder. The retaining cylinder has a large head portion and a small waist; and the adjusting ring is engaged to the waist and is confined by the head portion to be combined with the handle.

In a tunnel magnetoresistance effect element comprising a tunnel multilayered film having a tunnel barrier layer, a ferromagnetic free layer and a ferromagnetic pinned layer such that the tunnel barrier layer is held between the ferromagnetic free layer and the ferromagnetic pinned layer, three indexes representing a surface roughness state of the tunnel barrier layer are set such that Ra<=1 nm, Rmax<=10 nm and Rrms<=1.2 nm, wherein Ra is one of the three indexes and representing the center line average roughness, Rmax is one of the three indexes and representing the maximum height, and Rrms is one of the three indexes and representing the standard deviation roughness. Thus, the tunnel magnetoresistance effect element exhibits improved characteristics, particularly, a large head output.

The invention discloses a connecting rod fine boring fixture, and relates to the technical field of machining process devices. The connecting rod fine boring fixture comprises a fixture body provided with a supporting plate portion, wherein a large head positioning device and a positioning mandrel are arranged on the supporting plate portion, a pressing device is arranged close to the large head positioning device, a conical head supporting device and a V-shaped supporting device are arranged on the upper side of the positioning mandrel and the lower side of the positioning mandrel respectively, the conical head supporting device comprises a butt strap which is arranged at the upper end of the supporting plate portion, and a pin sleeve which is arranged on the butt strap in a penetrating mode and provided with a limiting hole, a pressing screw with the upper portion extending out of the upper end face of the pin sleeve of the conical head supporting pin and a conical head supporting pin which is connected with the pressing screw in a butt joint mode are sequentially connected to the pin sleeve from top to bottom, the conical head supporting pin is clamped in the limiting hole of the pin sleeve through a first spring, and the lower portion of the conical head supporting pin extends out of the lower end face of the pin sleeve of the conical head supporting pin. Compared with the prior art, the connecting rod fine boring fixture has the advantages that the pressing screw drives the conical head supporting pin to move up and down, and therefore the influences of small force generated in the tangential direction of the pressing screw and thread fit clearance on clamping accuracy and positioning accuracy are eliminated.

The invention discloses a badminton recovering and tidying machine which comprises a barrel, wherein an upper opening and a lower opening are formed in the barrel, and the diameter of the upper opening of the barrel is larger than the height of a badminton, the diameter of the lower opening of the barrel is larger than the diameter of the upper end surface of the badminton, and one side of the barrel, which is near the lower opening is obliquely provided with an air inlet device. Because of the technical scheme of the badminton recovering and tidying machine, the condition of badmintons entering the barrel without a direction is changed into the condition of the badmintons entering the barrel with a direction under the action of wind, big heads of the badmintons are upward, and the badmintons can be successively sequentially placed. The badminton recovering and tidying machine has the advantages of simple structure, convenience in use and high stability. The badminton recovering and tidying machine can be used in an automatic badminton recovering and tidying system and can cooperate with a badminton pitching machine, only several badmintons are needed, the badmintons can be automatically tidied and continuously recovered without the need of picking up the badmintons, and therefore working strength is lowered, and the purchasing cost of the badmintons is not reduced. The recovering and tidying efficiency of the badmintons is high, and the badminton recovering and tidying machine can be used for the principle of a badminton picking machine, and used for testing the balance and stability of the badmintons.

A replacement assembly of a handle tool comprises a handle having an axial receiving hole; an adjust unit; the adjust unit being formed with a resisting block; an opener head; the opener head having a buckling groove; a fixing unit installed at one end of the receiving hole for confining the adjust unit; the fixing unit having a positioning hole for receiving an opener head; the fixing unit having at least one through hole which is communicated to the positioning hole; wherein the resisting block enters into the buckling groove of the opener head from the through hole of the fixing unit. The fixing unit has a large head and a small waist; the adjust unit is engaged to the waist and is confined by the head to be combined with the handle.

The invention discloses a Chinese medicinal herb additive for promoting the growth of a piglet and the application thereof; wherein the additive comprises the following components: officinal magnolia bark, bitter orange, Chinese pulsatilla root, medicated leaven, rhizoma discoreae, sepium, dangshen, polygonummultiflorum thunb, hawthorn, rhizoma atractylodis, dried orange peel, milk veteh, malt, the rhizome of large-headed atractylodes, and wild jujube. According to the physiological function of the piglet, all components with the pertinence are compatible with each other, make good for deficiency, are cooperated with each other and mixed in a matching way. Proved by experiments, the additive has the functions of invigorating the stomach, helping digestion, promoting blood circulation, removing blood stasis, calming the nerves, tranquilizing, and increasing immunity, can prevent disease, treat an illness, help the growth, increase the disease resistance of the piglet, does not have any side effect and harmful substance to be remained; only about 20% of dosage of the additive can play greater function; the additive does not harm the digestive system of the piglet and other physiological functions and is beneficial for the growth of the piglet and the strengthen of disease-resistance capability.

Antimicrobial compositions that provide enhanced immediate and residual anti-viral and antibacterial efficacy against rhinovirus, rotavirus, coronovirus, respiratory syncytial virus, Gram-positive bacteria, Gram-negative bacteria and combinations thereof. More specifically, antimicrobial compositions comprising an organic acid or organic acid mixture and a short-chain anionic surfactant having at least one of a large head group; a branched alkyl chain and an unsaturated alkyl chain. Further, products incorporating the antimicrobial compositions of the present invention and methods of using the antimicrobial compositions and products are disclosed herein.

Therapeutic antimicrobial compositions and methods for providing enhanced immediate and residual anti-viral and antibacterial efficacy against rhinovirus, rotavirus, coronovirus, respitory syricytial virus, Gram-positive bacteria, Gram-negative bacteria and combinations thereof. More specifically, therapeutic antimicrobial compositions comprising an organic acid or organic acid mixture and a short-chain anionic surfactant having at least one of a large head group; a branched alkyl chain and an unsaturated alkyl chain, and therapeutic methods of use thereof.

An evaporative type medium condenser without the using of conventional cooling fins comprises: characteristically a plurality of streamline cross sectional bare metal tubes disposed in parallel for medium coils to instead the conventional round sectional tubes thereof; a recycling water supply system having a plurality of water spray nozzles for spraying fine water particles onto the surface of coil tubes formed a water film continuously held thereon; a fan system to provide a wind flow blowing over the streamline tubes in a direction from a large head front portion of the streamline cross section to a gradual reduced rear portion thereof and to provide a low pressure area thereat so as to speedy the evaporation of the water film on the surface of the coils tubes for improving a high cooling efficiency to reach a high E.E.R. therefore.

The invention discloses a technical method for culturing gastrodia elata at one time under forest, which comprises gastrodia elata seed production technology, land selection and preparation technology, seed treatment technology, seeding technology, nutrient regulation and management technology and gastrodia elata harvest method. The method has the advantages of capacity of not struggling for land with crops, short production cycle, manual labor and bacteria conservation, capacity of avoiding variety degeneration and effectively preventing large head and small tail of the gastrodia elata body, and obvious ecological benefit, economic benefit and social benefit.

A mechanical broadhead including rearwardly deploying and / or sliding blades. The broadhead includes a ferrule defining a bore joined with a penetrating tip. A connector body, such as a carriage element or a pin, is slidably and moveably disposed within the bore, distal from the tip. One or more cutting blades is joined with the connector body. The connector body moves together in unison with the cutting blades as they expand from a retracted, in flight mode to a deployed, target penetrating mode. The connector body and blades can be joined with the ferrule so that the broadhead converts from a deployed mode to an unbarbed mode to facilitate broadhead removal. Optionally, the broadhead can include an internal retainer element that is resilient and durable enough to be used for multiple deployments. A related method of operating the broadhead also is provided.

The invention discloses an engine cracking connecting rod and a machining method of the engine cracking connecting rod. The engine cracking connecting rod comprises a connecting rod body and a connecting rod cover, wherein the connecting rod body is connected with the connecting rod cover in a cracking position of a connecting rod big head through a connecting bolt, U-shaped grooves which are symmetrical relative to a cracking surface are formed in the cracking position of the connecting rod big head, V-shaped splitting grooves are formed in the inner edge, corresponding to the cracking position, of a big head hole of the connecting rod big head, and the V-shaped splitting grooves are symmetrical relative to the cracking surface. The machining method comprises the steps that a forged connecting rod blank with the two symmetrical U-shaped grooves is machined in a rough mode; the connecting rod is cracked into the connecting rod body and the connecting cover; the cracked connecting rod is machined in a fine mode, and a cracking connecting rod finished product is formed. The engine cracking connecting rod and the machining method of the engine cracking connecting rod can lower the cracking difficulty, guarantee the cracking effect, reduce production work procedures, improve reset accuracy after cracking, and guarantee the overall performance of the connecting rod.

The metal pile head set inside the sunken tube features the conic shape with large-headed horizontal pin on the inner wall. By means of the metal pile head, the sunken tube and corresponding piling method, the diameter ratio between the enlarged pedestal and the pile column may reach 1.5, and the routine enlarged pedestal has area up to 2.3 sq m and bearing capacity up to 270 T. Owing to the setting sunken tube, dry soil taking and air sucking, the pedestal enlarging process can clean the bottom of pile to reach the effective factor of 1.00. The existence of the sunken tube can ensure the reliability of the enlarged pedestal, and the bottom may be enlarged sufficiently and accurately.

Systems and methods for reducing head media spacing (HMS) from about 100 Angstroms to about 65 Angstroms or less, without substantial reductions in the carbon overcoat or lubricant thickness. A protruding feature extends above the actuated portion of the air bearing surface and generally covers the read-write sensors. The protruding feature can either be static or thermally actuated. The protruding feature is small enough to engage with the lubricant without causing large head media disturbances and lubricant pickup and re-distribution or preventing contact detection. The protruding feature is also extremely small relative to the size of the actuated portion of the air bearing surface, but large enough to provide a wear and corrosion resistance to head media spacing sensitive features.

A twist off tamper-proof fastener having an elongate flexible strap defining a plurality of parallel adjacent transverse teeth in opposing planar surfaces. First end portion of elongate strap is tapered to a rounded tip for insertion through a “T” slot defined in a dimensionally larger head portion carried at opposing end of the elongate strap. A fixed tooth and plural angulated teeth carried by a flexing arm irremovably engage with the teeth defined in the elongate strap. The head portion is elliptic with opposing spaced apart rounded ends and opposing planar sides to facilitate grasping and twisting by a user, and for identifying indicia. A circumferentially extending notch is defined in the elongate strap immediately adjacent the head portion. Twisting the head portion creates shearing forces that are focused at the circumferential notch breaking the fastener and allowing removal without tools.

The invention discloses a fixture for machining holes in large and small ends of an automotive engine connecting rod. The fixture comprises a small end fixture body, a large end fixture body, a support base and a plurality of clamping positioning units. One of the small end fixture body and the large end fixture body is movably arranged relative to the support base. Each clamping positioning unit comprises a small end positioning pin, a large end positioning pin, a small end positioning push-pull device driving the small end positioning pin to pull and push, a large end positioning push-pull device driving the large end positioning pin to pull and push, a positioning device for positioning a workpiece, and a clamping device for clamping the workpiece; the positioning device and the clamping device are correspondingly arranged on the large end fixture body. The fixture for machining holes in large and small ends of the automotive engine connecting rod has the advantages that the workpiece can be automatically clamped in the fixture, clamping effect is good, the center distance of the large and small ends of a positioning connecting rod can be adjusted to adapt to different types of workpieces for machining, multiple workpieces can be machined by single clamping, and production efficiency is greatly improved accordingly.

The invention discloses a Chinese medicinal composition for treating hypertension, hyperlipidemia and hyperglycemia, which is prepared from the following raw material medicaments: kudzuvine root, root of red-rooted salvia, angelica dahurlica, ligusticum sinense oliver, flos chrysanthemi, sea-ear shell, cassia seed, astragalus, szechwon tangshen root, large-headed atractylodes rhizome, poria, liquoric root, platycladi seed, Chinese angelica, Chinese magnoliavine fruit, szechuan lovage rhizome, ginkgo leaf, tea leaf and raw hawthorn fruit. The Chinese medicinal composition has the good effects of reducing blood pressure, blood fat and blood sugar, preventing and treating arteriosclerosis and improving blood circulation, and has excellent prevention and treatment effect on cardiovascular and cerebrovascular diseases.

The invention discloses a medicament for stimulating the appetite of children. The medicament consists of the following components in parts by mass: 28-33 parts of dangshen, 28-32 parts of poria, 25-30 parts of large-head atractylodes rhizome, 12-16 parts of dried orange peel, 28-32 parts of hyacinth bean, 26-30 parts of Chinese yam, 30-33 parts of lotus seed, 18-22 parts of amomum fruit, 26-33 parts of coix seed, 16-20 parts of platycodon root, 10-12 parts of cassia bark, 27-32 parts of chicken gizzard membrane, 27-32 parts of massa medicata fermentata fujianensis, 30-35 parts of fructus crataegi and 26-30 parts of malt. All components are ground into powder, and the powder is taken 2-3 times every day, each time for 5-8 grams. A treatment course lasts for seven days, and the medicament is generally required to be taken for 1-3 treatment courses according to the medicament taking effect. The medicament has quick response. In general, a remarkable effect can be achieved after one treatment course, the appetite of a child is improved remarkably, and an anorectic child can basically take food actively. After the medicament is taken, the phenomena of food picking and food preference of a child can be improved remarkably.

The invention provides a construction method of a concrete supporting structure, comprising the following steps: step (101) of excavating working surface, step (102) of injecting a first layer of concrete retaining wall, step (103) of arranging hole sites, step (104) of pore-forming, step (105) of borehole cleaning, step (106) of installing a supporting structure, step (107) of pressure slip casting, step (108) of hanging and paving steel mesh sheets, step (109) of injecting a second layer of concrete pavement, step (110) of concrete pavement backside back fill grouting, step (111) of concrete pavement curing, the step of using drilling equipment to drill at preset design positions in the step (104) of pore-forming and the step of using a hole extruding and chambering device to expand bore diameter of boreholes when drilling is to reach preset depth to form a supporting structure with a big-head tail end and with diameter being larger than bore diameter. With the design adopted, reinforcing capacity of the concrete supporting structure can be fully enhanced.

The anchor rod construction process includes the steps of: assembling the detachable anchor rod assembly with anchor ribs to the front end of drilling rod; rotating the drilling rod to set the said anchor rod assembly into soil and to required position while drilling hole; depositing solidifying liquid via the hollow passage in the drilling rod to the bottom of the hole to form large head for anchoring; and separating the anchor rod assembly from the front end of the drilling rod so as to withdrawing the drilling rod while retaining the anchor rod assembly inside the hole.

A twist off tamper-proof fastener having an elongate flexible strap defining a plurality of parallel adjacent transverse teeth in opposing planar surfaces. First end portion of elongate strap is tapered to a rounded tip for insertion through a “T” slot defined in a dimensionally larger head portion carried at opposing end of the elongate strap. A fixed tooth and plural angulated teeth carried by a flexing arm irremovably engage with the teeth defined in the elongate strap. The head portion is elliptic with opposing spaced apart rounded ends and opposing planar sides to facilitate grasping and twisting by a user, and for identifying indicia. A circumferentially extending notch is defined in the elongate strap immediately adjacent the head portion. Twisting the head portion creates shearing forces that are focused at the circumferential notch breaking the fastener and allowing removal without tools.

The invention discloses a Chinese medicinal compound extract for whitening and removing freckles and a preparation method thereof, relates to a medicament for whitening and removing the freckles, and solves the problems of slow curative effect, low cure rate and inconvenient administration of Chinese medicaments for a long term in the treatment for chloasma at present. The Chinese medicinal compound extract for whitening and removing the freckles is prepared from bupleurum, Chinese angelica, white paeony root, dogwood, large-head atractylodes rhizome, Indian buead, szechuan lovage rhizome, peach seed, white muscardine silkworm, roasted ginger, mint and radix glycyrrhizae preparata; and the product is prepared by adopting carbon dioxide supercritical extraction technology. The method has the advantages of simpleness and convenient operation, and can highly enrich active ingredients. Therefore, the bioavailability is improved; the pharmacological activity is obviously enhanced; and the obtained product has small volume and does not contain solid impurities which cannot be emulsified. The Chinese medicinal compound extract effectively suppresses the activity of tyrosinase and melanogensis, removes or improves the chloasma, and responds within about one month, and the cure rate reaches 99.98 percent. The Chinese medicinal compound extract can be used as an active ingredient for directly preparing an external medicinal preparation and cosmetics for whitening and removing the freckles, is easy to carry, and is convenient to use.

The invention discloses a traditional Chinese medicine composite for treating uterine bleeding and a preparation method thereof, belonging to the technical field of the traditional Chinese medicine. The traditional Chinese medicine composite mainly comprises the following ingredients according to the parts by weight: 6 parts of ginseng, 30 parts of raidx astragali, 10 parts of amur corktree bark, 10 parts of tortoise plastron, 10 parts of baical skullcap root, 15 parts of cherokee rose fruit, 15 parts of white paeony root, 15 parts of radix polygoni multiflori preparata, 6 parts of radix glycyrrhizae preparata, 15 parts of angelica, 10 parts of nutgrass galingale rhizome, 8 parts of dried ginger, 10 parts of radix rehmanniae preparata, 15 parts of folium artemisiae argyi preparata, 15 parts of large head atractylodes rhizome and 15 parts of cyrtomium rhizome. The traditional Chinese medicine composite can also add and reduce dosages on the basis of the above prescription. The traditional Chinese medicine composite can be decocted with water and then is taken, and also can be made into mixture for taking. The traditional Chinese medicine composite has low price, simple operation, convenient to use and no toxic side effect. The patient can make by themselves and the invention has curative rate of 94.1 percent on uterine bleeding caused by various reasons and total effective rate of 100 percent, and has no relapse. Compared with other medicines, the traditional Chinese medicine composite has extremely obvious effect.

The invention discloses skin-protecting and acne-removing Chinese medicinal facial mask powder, which relates to an acne-removing and skin-protecting Chinese medicine. The skin-protecting and acne-removing Chinese medicinal facial mask powder comprises large-head atractylodes rhizome, common bletilla tuber, Japanese ampelopsis root, white poria, white paeony root and natural pearl powder. The skin-protecting and acne-removing Chinese medicinal facial mask powder is characterized in that: the facial mask powder comprises the following components in parts by weight after components are added: 2-6 parts of large-head atractylodes rhizome, 2-6 parts of common bletilla tuber, 5-15 parts of Japanese ampelopsis root, 5-15 parts of white poria, 5-15 parts of white paeony root, 5-15 parts of natural pearl powder, 2-6 parts of bitter almond kernel, 2-6 parts of giant typhonium rhizome, 10-30 parts of pearl barley, 10-30 parts of mung bean, 10-30 parts of soybean, 5-15 parts of edible talc powder, 5-15 parts of hungaian morningglory root, 5-15 parts of larva of silkworm with batrytis, 5-10 parts of ginkgo, 5-15 parts of tribulusterrestris and 5-15 parts of common perilla. The facial mask powder is prepared by the following steps of: smashing each component into coarse powder of 100 meshes respectively; proportioning coarse powder, and stirring; smashing into fine powder of 200-500 meshes; cooling to the normal temperature; and packing the fine powder. The skin-protecting and acne-removing Chinese medicinal facial mask powder has the effects of effectively repairing skin corium broken collagen fibers, promoting blood circulation by removing blood stasis, diminishing inflammation, resisting bacteria, and softening and relieving the formation of acne marks, acne scars and pigmentation.

A method for using laser to premachine the cracking slots before dividing connecting rods from each other includes such steps as fixing the laser cutting head above the position to be machined, which is near the hole on big end of connecting rod, regulating the incident angle of laser beam to 0-70 deg.C, turning on laser device, vertically moving the laser cutting head to machine the cracking slot to predefined depth, and repeating said steps to machine another cracking slot at another end of aconnecting rod.

The invention relates to a process for manufacturing an internal-combustion engine connecting rod. The steps of the process are: forging, by a forging die, an integral blank of a connecting rod having a big end ad a small end, with the small end of the blank provided with opposite circular pits, the big end of the blank provided with opposite pits or a through hole, the edges of the pits or the hole on the big end being elliptical, the difference between a major axis and a minor axis being from 5 to 8mm, and the major axis superposing on the axis of the connecting rod or forming an included angle of 45 degrees with the axis of the connecting rod; subjecting the integral blank to blasting shot, flaw detection and phosphorization, then roughly milling two planes of the integral blank of the connecting rod, and machining an mounting hole for a piston pin on the small end; incising along the minor axis of the ellipse of the big end of the integral blank to form a blank of a connecting rod body and a blank of a connecting rod cover board, milling the incising junction surfaces; merging the junction surfaces, synchronously drilling the mounting jump-holes on the connecting rod body and the connecting rod cover board, and machining a crank mounting hole corresponding to the piston pin mounting hole on the big end; threading through the mount jump-holes on the connecting rod body, and machining a gap block position-limiting grooves in the connecting rod body and the connecting rod cover board; and removing burrs, and setting a positioning fixed bolt.