436results about How to "Avoid elastic" patented technology

The invention relates to a composite foam flooding method suitable for oil field exploitation, comprising the following steps that: pretreated prepositive polymer plug is injected into the formation, and the injection volume of the polymer plug is 8-15% of the total pore volume of the formation; composite foam flooding auxiliary plug is injected into the formation, and the injection volume of the composite foam flooding auxiliary plug is 5-10% of the total pore volume of the formation; composite foam flooding main plug is injected into the formation, and the injection volume of the composite foam flooding main plug is 30-60% of the total pore volume of the formation; and follow-up protective polymer plug is injected into the formation, and the injection volume of the follow-up protective polymer plug is 10-20% of the total pore volume of the formation. With the adoption of the composite foam flooding method suitable for oil field exploitation, a good flooding effect can be obtained.

The invention provides a six-traction device space debris net capture system which adopts level-1 launch and mass blocks synchronization launch and concentric circles rope net folding and receiving. The system comprises a launch subsystem which is composed of a launcher, a net hold, a cushioning device and a tether tension control device; a fly net subsystem which is composed of a rope net and mass blocks; the launcher is used for pushing the mass blocks at a predetermined distance from a target at a predetermined angle and to drive the rope net be pulled from the center of the net hold while unfolding to a fully unfolded state to capture the target after reaching the target location; the mass blocks are used for dragging the rope net so that the rope net is pulled out and unfolded and the net opening is tightened up to complete capture of the target; the number of the mass blocks is at least three and six mass blocks are adopted through optimized analysis; the tether tension control device is connected with the fly net subsystem and with the target through the rope net to pull the captured target off the track; the rope net is encapsulated in the net hold in a concentric circles package and is used to form sufficient coverage to completely surround the target.

A pleated shade or Venetian blind apparatus capable of height adjustment comprising an upper elongated support; a lower elongated member that is manually adjustable up and down; primary lines extending through shade pleats or blind slats to suspend the bottom elongated member; primary rotors at the top elongated support to wind or engage the primary lines; at least one secondary line having operative connection to the primary lines; and rotary members acting on the secondary line or lines for counterbalancing suspension force exerted on the primary lines at different shade or blind height adjusted levels, including a spring coupled to the rotary members exerting force tending to entrain the secondary line or lines about the rotary members, for storage on at least one of the members.

The invention relates to a triad integration freckle-removing functional nano cream for skin external use and a method for preparing the same. The three types (night use type, daytime use type and auxiliary type) freckle-removing nano creams improve and optimize a novel international passive target transdermal drug delivery system (TDDS) as a carrier, and organically combine and solubilize freckle-removing functional components with different biological efficacies, action ways and physical and chemical properties to form a good mutual aid synergic function system which has remarkable effect of controlling and relieving colored patches (such as chloasma, inflammatory pigmentation, sunburn, and the like) caused by abnormal facial metabolism of pigment. The product has the advantages of tiny particle sizes of spherical particles, obvious passive target function, excellent adaptability, homodromous property, fluidity and dispersion, strong penetrability, even texture, subtleness, lubricity and luster, is simple and convenient to use, and is comfortable without pungency and side effects; besides, the appearance is light yellow with slight opalescence, is glittering and translucent, clear and transparent, sticky but not viscous, thick but not dense, and oily but not greasy, has good stability, excellent curative effect, short industrialization cycle and high production efficiency, saves time, materials and energy sources, dose not need special devices and heat energy, and is easy for popularization and application.

A circumcision stitching instrument includes a cylindrical main base; a circular front end cover is arranged at a front end cover of the main base; an inner side ring is projected on the inner circular wall of the front end cover in radial direction; a plurality of axial through nail bin groove holes are formed in the inner side ring in a circular array manner; the nail bin groove holes are of long kidney hole shaped structures; projections on the inner side ring in the radial direction corresponding to every two adjacent nail bin groove holes are intersected in part; the plurality of nail bin groove holes are successively arranged in an imbrication manner in the circumference direction; a U-shaped stitching nail can be arranged in each nail bin groove hole in a matching manner; a circular push body and a blade are coaxially arranged in the main base; the blade is coaxially arranged in the push body; push columns are projected at one end, corresponding to the front end cover, of the push body, wherein the number of the push columns is identical to the number of the plurality of nail bin groove holes, and the cross sections of the push columns are matched with that of the plurality of nail bin groove holes; and the plurality of push columns are inserted in the plurality of nail bin groove holes in a one-to one corresponding manner and can slide with respect to the axial direction in the nail bin groove holes.

A method for preparing cement clinker by using waste concrete is disclosed, which comprises the following steps: collecting, drying and breaking waste concrete, selecting concrete particles with a particle size of 5mm-20mm, adding iron powder or sulfuric acid dregs into the concrete particles, mixing and grinding the mixture, and screening cement raw material powders by use of a square hole screen (80mum) with screen residue being 8%-16%, wherein if the iron powder is added, the mass percent of the concrete is 98.5%-99.5% and the mass percent of the iron powder is 0.5%-1.5%; and if the sulfuric acid dregs are added, the mass percent of the concrete is 95.0%-96.0% and the mass percent of the sulfuric acid dregs is 4.0%-5.0%; and finally balling, calcining and quenching the concrete so as to obtain the cement clinker. According to the method, the mass percent of the waste concrete in the cement clinker is more than 95%, the quality of the cement clinker is equivalent to that of the common cement clinker, and the cement clinker can be taken as raw material to be applied to the concrete preparation, so that a good utilization approach is found for reutilization of the waste concrete.

The invention discloses a self-bonded coil forming machine and a self-bonded coil forming process. A winding mechanism is arranged on the forming machine and comprises a winding shaft and a winding chuck which can rotate along with the winding shaft; the self-bonded coil forming machine also comprises a coil heating system; and the heat spray opening of the coil heating system is opposite to a semi-finished self-bonded coil wound on the winding chuck. The coil heating system is arranged on the self-bonded coil forming machine, so that the semi-finished self-bonded coil can be heated and baked after being wound; a self-bonded layer on the outer layer of an enamelled wire is softened and formed through bonding, namely one set of equipment can be used for winding and baking; the production process is simple; a small amount of equipment is involved; the time consumption is low; the production efficiency is high; resources are saved; furthermore, the self-bonded coil is wound and baked on the same equipment, so that the self-bonded coil is not required to be transferred to an oven and heated after being wound; phenomena of rebounding and loosening of the coil during transferring are avoided; and the qualified rate of a product is increased.

The invention discloses a multi-preventing well cover, which comprises a ring support (1) and a cover plate (2) which are rotatably connected together; the internal edge of a cover plate supporting platform (3) is provided with a buckle (6), and a bolt (8) is arranged below the cover plate (2). The bolt (8) slides into the lower part of the buckle (6) when the cover plate (2) is furiously closed and the ring support (1) and the cover plate (2) are caused to be locked together, thus not only effectively preventing the well cover from stealing, but also being capable of preventing the cover plate from bouncing. The cover plate supporting platform (3) is provided with an elastic pad piece which can prevent sound and rupture caused by the collision between the cover plate (2) and the ring support (1) due to applied external forces. Convex patterns on the surface of the cover plate (2) have skid resistance function. The well cover has multiple effects such as theft preventing, sound preventing, bouncing preventing, moving preventing, dislocation preventing, drop preventing, skid preventing and the like.

The invention provides an ear muff allotting device, mainly comprising a base having an ear muff notch, an ear muff accommodating groove for accommodating the ear muff, a gravity piece for applying proper gravity to the ear muff in the ear muff accommodating groove and an impelling piece between the base and ear muff accommodating groove for pushing the ear muff fallen by the gravity in the ear muff accommodating groove to the ear muff notch to insert the probe of an ear thermometer in the ear muff, therefore the user does not need to touch the ear muff by hands to install the ear thermometer in the ear muff to effectively reduce the contamination and bacterial infection of the ear muff.

The invention discloses a rubber expansion joint resisting axial deformation. The rubber expansion joint comprises first flanges, second flanges, a rubber bellows and a limiting mechanism. The two ends of the rubber bellows extend in the radial direction to form extending parts, the extending parts are provided with through holes, the rubber bellows penetrates the second flanges, the extending parts of the rubber bellows are clamped through the first flanges and the second flanges and are locked through screws penetrating the first flanges, the through holes in the extending parts and the second flanges to be matched with nuts, and the limiting mechanism is arranged between the second flanges positioned at the two ends of the rubber bellows. According to the rubber expansion joint resisting axial deformation, the problem that the bellows will lose elasticity to become loose and soft when due to pipe warming the expansion joint causes the bellows to axially deform to exceed its elastic deformation range is solved.

The invention discloses a method for preparing a liquid octylated diphenylamine antioxidant, which belongs to the field of chemical synthesis, and particularly relates to a method for synthesizing high-content mono-octyl diphenylamine. The method comprises the following steps of: under the action of a catalyst, making diphenylamine react with diisobutylene to generate an octylated diphenylamine mixture; introducing isobutene for reacting; and distilling to obtain the liquid octylated diphenylamine antioxidant, wherein the catalyst is dehydrated active white clay. The prepared liquid octylated diphenylamine antioxidant is a light-yellow viscous liquid at normal temperature, and the moving viscosity is 50-300 mm<2>/s at the temperature 40 DEG C. The liquid octylated diphenylamine antioxidant can be effectively applied to turbines, aircrafts and various oil products and lubricating agents which are applied at high operation temperatures, and can be applied to high-polymer rubber products to prevent rubber from being thermally oxidized and aged by elastic deflection.

The invention provides a vibration motor, which comprises a base provided with a bottom wall and a side wall, an upper cover combined with the base so as to form an accommodation space, a spring piece accommodated in the accommodation space, and a vibrator supported by the spring piece in the accommodation space, wherein the spring piece is provided with a fixed part connected with the side wall, an elastic arm which is bent and extended out of the fixed part, and a connection part which is extended out of the elastic arm and connected with the vibrator; the upper cover is provided with a main body part covered on the base and a first flange part extended out of the main body part to the bottom wall; the first flange part is positioned in a vibration direction of the vibrator and arranged between the fixed part and the connection part of the spring piece; and the flange part is opposite to the fixed part and spaced from the fixed part at a certain distance. The vibration motor can effectively prevent overlarge amplitude and overlarge displacement of the vibrator during falling so as to avoid a phenomenon, caused by impact of the vibrator on the fixed part of the spring piece and the side wall of the base, of deformation of a shell of the vibration motor or damage to the spring piece; therefore, the performance of the vibration motor can be improved.

An electrical connector plug having resilient contact terminals electrically connects to an electrical connector socket with a casing and two groups of engaging terminals mounted on or in the casing. The electrical connector plug has an electrically conductive housing. A coupling device extends in a longitudinal direction and has a base portion. The resilient contact terminals are mounted on the coupling device axially symmetrically arranged with each other in the longitudinal direction, each of which has a flat section and an upwardly protruding contact section. A metallic shield frame is electrically connected to and secured to the electrically conductive housing, having a frame section, a front section, and two lateral protective sections. The respective lateral protective sections have a height no less than that of the upwardly protruding contact sections of the resilient contact terminals.

A self-retracting lanyard having a housing; a rotatable drum in that housing; a line for winding about that drum; and an improved braking mechanism for preventing the -drum in that housing from ratcheting due to line rebounding after a fall arrest event. The braking mechanism has a plurality of pawl lockout elements for flexibly engaging with a stationary component of the lanyard to keep at least one pawl in a locked position during reverse rotation of the drum thereby preventing ratcheting from occurring.

The invention discloses a plate multipoint divisional forming method and a divisional pressing type multipoint forming device, and belongs to the technical field of mechanical engineering. The plate multipoint divisional forming method and the divisional pressing type multipoint forming device aim to change the current situation that a blank pressing mechanism and a trimming process are needed when a plate is formed by utilizing an integer mould, overcome the detect that a workpiece is prone to wrinkling or the material utilization rate is low when the plate is formed by utilizing a multipointtype digitized mould, and has an anti-wrinkling function. The upper portion and the lower portion of the multipoint forming device are each composed of a plurality of basic body units, the upper portion or the lower portion of the multipoint forming device is divided into a plurality of forming areas, and the multiple basic body units are arranged on the multiple forming areas correspondingly; and when the plate is formed, the multiple forming areas are divided into two sets or a plurality of sets, each set comprises one or more forming areas, and the formed plate is pressed step by step in sets. According to the plate multipoint divisional forming method and the divisional pressing type multipoint forming device, compared with integer mould forming, mould-free forming without blank pressing of the plate three-dimensional curved surface can be achieved, and the processes of designing, manufacturing, debugging and workpiece outline cutting after plate forming of the mould are saved.

The invention provides a buffer mechanism of a docking device. A copper sleeve is arranged on the back side of a space between a shaft and a shaft sleeve; a linear bearing is arranged on the front side of the space between the shaft and the shaft sleeve; an axial spring is arranged between a shaft sleeve end cover flange and a shaft back end cover; a radial spring is arranged between a damper sleeve and a damper pull rod; a gravity compensation block sleeves the shaft sleeve in a front outer shell; an end cover is connected between a bearing outer cover and a bearing outer shell; a disc spring set is arranged on the end cover between the bearing outer cover and the bearing outer shell; two bearing shafts are mounted on the bearing outer cover; inner covers of ball bearings are arranged on the bearing shafts; outer covers of the ball bearings are arranged on universal joints; two symmetric bearing mounting shafts are arranged on the shaft sleeve; the inner covers of the ball bearings are arranged on the bearing mounting shafts; and the outer covers of the ball bearings are mounted on the universal joints by a bearing inner cover. One set of buffer mechanism is designed to reduce the peak value of collision contact force, to prolong the docking collision contact time and to assist realization of smooth docking of non-cooperative satellites.

The invention discloses a stamping process profile compensation method for a vehicle roof cover with a sunroof. A stamping process for the vehicle roof cover with the sunroof comprises the following four procedures: 1. drawing; 2. trimming, punching and side shaping; 3. trimming, flanging and shaping; 4. trimming, punching, side punching, side shaping and upward flanging. As for the stamping process profile compensation method, die profiles from the first procedure to the third procedure are compensated. Through the method of the invention, the stamping process profiles are compensated by thepreliminary CAE analysis, and the process compensation scheme is formulated at the process design stage, thereby greatly reducing the die debugging workload, shortening the die forming cycle of complicated panel dies such as the roof cover, reducing die development costs, and improving the quality of the large panel dies.

One or more embodiments of the present specification provide a display panel and a display device. The display panel comprises a first cover plate, and the first cover plate comprises: a first plane cover plate area, which is configured to be arranged on the light emitting side of a plane display area of the display panel; a first curved surface cover plate area, which has one side connected withthe first plane cover plate area, and is configured to be arranged on the light emitting side of a curved surface display area of the display panel; and a turnover cover plate area, which is connectedwith the other side of the first curved surface cover plate area and is configured to be arranged on the non-light-emitting side of the display panel. According to the embodiment of the invention, the original cover plate is extended, folded and attached to the non-light-emitting side of the display panel, so that a display film layer in the display panel can be bound to the curved surface display area, and the display film layer is prevented from rebounding and upwarping.

The invention discloses a three-component valve. A valve body comprises an upper valve body and a lower valve body, wherein the upper valve body comprises an upper valve body shell and a drive mechanism arranged in the upper valve body shell; a cavity is reserved in the upper part of the lower valve body; at least three piston channels are arranged in parallel at the bottom in the cavity; a glue outlet hole is reserved on the tail parts of each piston channel; a piston is arranged on the middle parts of each piston; the sealed ends of each piston are at least partially arranged in the corresponding glue outlet holes; at least one sealing device is arranged between each piston and the corresponding piston channels; the top ends of the pistons arranged in parallel are fixed on the same connecting plate which is at least provided with a connector; the connector is connected with the drive mechanism at least by one drive shaft; and the at least one drive shaft is arranged in a drive shaftchannel arranged between the upper and lower valve bodies. The invention provides the dispensing three-component valve, which has the characteristics of quick, convenient and accurate dispensing, clean dispensing stoppage and sealing structure difficult to damage.

The invention provides an assembling clamp for a carbon fiber composite aircraft cabin door. The assemble assembling clamp has the function of assembling five metal joints on the composite cabin doorthrough a riveting bonding mode, and the outline precision of the tooth-shaped edge relative to five joint holes, and the relative position degree and the coaxial degree among the joint holes are ensured. Through the assembling clamp, high precision assembling of the carbon fiber composite cabin door and the metal joints can be achieved, relative position deviation caused by the unreasonable positioning and clamping mode or the rebound and super poor precision of a manufactured piece caused by large state deviation between the state of the manufactured workpiece and the state after the manufactured workpiece is removed from a frame during assembling is avoided, meanwhile, the mode of a frame-type structure combined positioning assembly has the enough openness, the operation space can be ensured, the structure can be simplified as far as possible, and the manufacturing cost is reduced.

The embodiment of the invention discloses a dry electrode and a manufacturing method thereof. The dry electrode comprises conduits (2), elastic parts (3) and electrode masts (4), wherein the conduits (2) are fixedly arranged on one side of a substrate (1); the elastic parts (3) are located in the conduits (2) and the elastic coefficient of the elastic parts (3) is correlated with the positions of the elastic parts (3) on the substrate (1); the electrode masts (4) are located in the conduit (2) and move in the conduits (2) under the effect of the elastic parts (3). When the dry electrode touches a scalp, the electrode masts (4) of the dry electrode disclosed by the embodiment of the invention can correspondingly stretch out or retract back under the effect of the elastic parts (3) according to the curvature of each point on a head, the elastic force of the electrode posts () can be comparatively uniform according to the correlation between the positions thereof and the elastic coefficient of the elastic parts (3), thus the dry electrode is guaranteed to be in good contact with the scalp and the electrode masts (4) on the periphery of the substrate are prevented from having the defect of poor contact due to smaller elastic force.