43results about How to "Small operating resistance" patented technology

A valve timing control apparatus includes a driving-side rotating member (1), a driven-side rotating member (2) arranged coaxially with the driving-side rotational member so as to be rotatable relative to the driving-side rotating member (1), a retarded angle chamber (42) and an advanced angle chamber (43), each of which is defined by the driving-side rotating member (1) and the driven-side rotating member (2), a lock mechanism (6) locking a relative rotational phase of the driven-side rotating member (2) at a predetermined phase between a most advanced angle phase and a retarded angle phase,an operation fluid supply-and-discharge mechanism (76, 77, 176) supplying/discharging an operation fluid to/from the retarded angle chamber (42), the advanced angle chamber (43) and the lock mechanism (6), and a first air inlet mechanism (A1) for connecting one of the retarded angle chamber (42) and the advanced angle chamber (43) to an outside of the valve timing control apparatus in order to allow air to flow thereinto.

The invention discloses an injection pen. The injection pen comprises a pen holder, the front end portion of the pen holder is provided with a medicine bin, the rear end portion of the pen holder is provided with a trigger, a dosage cylinder, a differential speed rod and a transmission rod are coaxially arranged in the pen holder from outside to inside in sequence, the transmission rod is connected with a key groove of the differential speed rod, the inner wall of the pen holder is provided a limit bump which is matched with the transmission rod, the front end portion of the dosage cylinder is provided with a transmission clutch, the rear end portion of the transmission clutch is provided with a clamping tooth, the transmission rod is provided with an inner ring teeth which is meshed with the clamping teeth in an adaptive mode, the transmission chute and the dosage cylinder can be linked in an unidirectional transmission mode, the front end portion of the dosage cylinder is further provided with a push rod base, the front portion of the push rod base is provided with a push piece, a push rod which is matched with the push piece is coaxially arranged in the push rod base in a thread matched mode, and the push rod base and the transmission rod are linked in an unidirectional transmission mode. The injection pen is convenient and easy to operate, and the dosage of medicine can be controlled accurately.

The invention discloses a high-strength super-macroporous separating medium for plant polyphenols extraction. The separating medium is wholly molded in a separation column, has amino functional groups, compression strength of 5-10 MPa, porosity of 60-90%, and pore size of 10-500 microns; the holes are continuously formed in the medium. When prepared, a polyvinyl alcohol water solution is mixed with a crosslinking agent; the mixture is added with a catalyst and then gradually cooled and frozen; after crystallization and crosslinking reaction, the crystals are taken out and thawed to form a super-macroporous PVA (polyvinyl acetate) crosslinking support; a chitosan acid solution, the crosslinking agent and an initiator are used to substitute water in the support; after crystallization and chitosan crosslinking reaction, the substance is thawed to form a super-macroporous PVA-CTS (polyvinyl acetate-chitosan) dual-network crosslinking continuous bed; the continuous bed is reacted with the amino to generate the super-macroporous separating medium with the amino functional groups. The separating medium can be widely applied to extraction of the plant polyphenols, and further can be used as an adsorbing separating medium for wastewater treatment field of heavy metals and anionic dye and the like.

The invention relates to the field of dust removers, provides a vibrating and backflushing integrated bag type dust remover, and aims to reduce dust attachment and enable equipment to operate for a long time. The vibrating and backflushing integrated bag type dust remover comprises a shell, a filter bag, a mechanical vibrating device and a gas distribution structure, wherein a dust-containing gas inlet is formed in the lower part of the shell; a purified gas outlet is formed in the upper part of the shell; a pulse backflushing device is also arranged in the shell; a backflushing pipe of the pulse backflushing device corresponds to the purified gas outlet; the pulse backflushing device comprises a pulse controller, an electromagnetic valve, the backflushing pipe and a gas pocket; the pulse controller is connected with the electromagnetic valve; the backflushing pipe is connected with the gas pocket; and the electromagnetic valve is arranged on a connection pipeline between the backflushing pipe and the gas pocket. By the vibrating and backflushing integrated bag type dust remover, mechanical vibrating and pulse backflushing is integrated, so that accumulated dust on the surface of the filter bag can be cleared away, the operation resistance of the equipment is reduced, and the production capacity of the equipment is improved.

The invention provides a three-cavity balloon catheter which is used for solving the problem that a balloon catheter in the prior art does not have the cutting function. The three-cavity balloon catheter comprises a catheter head, the near end of the catheter head is connected with a balloon and a three-cavity tube, the three-cavity tube is connected with a handle outlet, the far end of the balloon is conical, the boundaries of the two sides of the balloon are each provided with a developing material tag block, the near end of the balloon is connected with the outer layer of the three-cavity tube, cavity channels of the three-cavity tube include the first cavity channel through which a guide wire can penetrate, the second cavity channel where medicaments can be injected, and the third cavity channel with a blood vessel knife, a knife storage area is arranged at the far end of the third cavity channel, and the blood vessel knife is arranged in the knife storage area. The three-cavity balloon catheter can break through intima to enter a true lumen in the interventional operation process, endangium of a false lumen can be cut open or broken through according to requirements, a lesion section lumen is cut for passing, and therefore repeated withdrawing and repeated puncturing of the balloon catheter can be avoided.

The invention discloses a connecting rod mutual sealing water distribution structure which comprises a body, a first cover body and a second cover body. The first cover body and the second cover body are arranged at the two ends of the body respectively. The body is provided with a water inlet cavity and at least two water outlets. The connecting rod mutual sealing water distribution structure further comprises at least two sealing deformation units and a connecting rod mutual sealing mechanism. The sealing deformation units are arranged between the body and the two cover bodies respectively and seal and plug the two sides of the water inlet cavity respectively. The connecting rod mutual sealing mechanism comprises a linkage rod penetrating through the two cover bodies and the body, the linkage rod is provided with a first sealing and plugging unit and a second sealing and plugging unit which are used for sealing and plugging the two cover bodies, and the first sealing and plugging unit is arranged at the end of the linkage rod. The connecting rod mutual sealing water distribution structure is simple in structure and easy to achieve, the operation force is effectively reduced through the connecting rod mutual sealing structure, one-axis movement and bidirectional control are achieved, and the effect of saving labor and operation space is achieved; by means of the magnetic force brake principle, friction does not exist between the operation part and the linkage rod, resistance is reduced, and the demand for labor saving in the operation process can be easily met.

The invention discloses a latch mechanism, a lock body and application to kitchen equipment, and belongs to the field of locks. A lock body buckle of the latch mechanism consists of a base and a latch; the base is used for installation and fixation; the top of a substrate of the latch is connected with a contactor; the top surface and at least one side surface of the contactor are aslant arranged;a clamping port is formed in the bottom surface of the contactor; a lock body rod comprises a lock rod fixed base, and a lock rod shaft mounted between two support legs of the lock rod fixed base; during clamping, the lock rod shaft extrudes the top surface of the contactor, and the lock body buckle or the lock body rod can be deflected to return, so that the lock rod shaft is clamped into the clamping port; the lock body buckle or the lock body rod is rotated to enable the lock rod shaft to deviate from the clamping port along the side inclined surface of the contactor; and the structure canbe combined with a handle to apply to the kitchen equipment. The lock body is more convenient to lock and unlock, can meet safety demands, and can guarantee better tightness when being applied to a steaming cabinet.

The invention provides a transcatheter valve conveying system and a handle thereof. The transcatheter valve conveying system handle comprises a main part and a control part disposed on the main part. The control part comprises a push-and-pull control portion comprising a screw and a push-and-pull member for pushing and pulling the screw; a rotation control portion comprising a fitting piece matched with the screw and a rotating member for rotating the fitting piece, wherein the rotating member can drive the screw through the fitting piece when the fitting piece is cooperated with the screw; and a transformation portion for enabling the fitting piece to be cooperated with or separated from the screw According to the transcatheter valve conveying system handle, accurate operation and rapid operation of the transcatheter valve conveying system can be simultaneously achieved.

A valve used at bottom of underflow pool is featured as passing valve stem top end through valve base and using hand wheel to regulate it up and down through screw thread, setting valve stem to be hollow tubular structure and making its head of top end be pipe nozzle as well as connecting its bottom end to hollow and hammer-shaped valve head, opening a numbers of injection holes all round on side surface from valve head to bottom point and setting valve head right above valve base.

The invention discloses an extraction and suction integrated percutaneous endoscope puncture biopsy instrument which structurally comprises an extraction and suction device, a limit component, an outer tube, an outer tube handle, a syringe, a syringe handle and an inner core wire, the syringe is arranged into an inner cavity of the outer tube, the syringe comprises a needle tip section and a needle body section, the needle tip section penetrates the far end of the outer pipe, the needle body section penetrates the near end of the outer pipe and is connected with the syringe handle, the near end of the syringe handle is connected with the extraction and suction device, a limit component is rotatably connected with the near end of the outer tube handle, and a slider is arranged on the syringe handle and slidably connected with the limit component. The biopsy instrument can meet requirements of any ultrasound endoscope mediation of digestive tracts and tracheae and further can be used fora non-ultrasonic through the scope, deep puncture biopsy, liquid extraction and the like under direct vision are achieved, puncture operation is simplified to a great extent, and operation safety isimproved.

A two-phase motor closed-type knife switching reversing switch, characterized in that two middle contacts (2) are arranged horizontally in the middle of a closed arc-shaped casing (1), and reverse contacts are arranged horizontally on the left end Point A (3), inverted contact B (4), on its right end horizontally follow contact C (5), follow contact D (6), and all contacts are arranged horizontally in two rows and three columns respectively. On the point (2) there is a double movable switch knife (7) that can be moved left and right by 180 degrees, and a horizontal switch is installed on the movable connection shaft between the two middle contacts (2) and the double movable switch knife (7). Compress the spring (8), and electrically connect the inverted contact A (3) with the forward contact D (6), and electrically connect the inverted contact B (4) with the forward contact C (5). When in use, the two ends of the main coil are respectively connected to two reverse contacts or forward contacts, and the switch knife is switched left and right to realize reverse and forward switching of the two-phase double-capacitance motor.

A pipeline closing apparatus comprises a lid member attachable to a downstream end portion of a sluice valve, a first control shaft 8 extending through the lid member, a second control shaft 9 extending through the first control shaft 8, an elastic annular member 12 disposed between pressing plates 10 and 11 provided on inward end regions of the control shafts 8 and 9 and elastically deformable to a diameter-increased position by being clamped and pressed, thereby to block between an inner peripheral surface of a branch pipe and the pressing plates, and a retaining device D provided between the inward end region of the second control shaft 9 and the upstream pressing plate 11 and including engaging link pairs 13 and 14 flexing and bulging to a diameter-increased position in response to outward sliding movement of the second control shaft 9 relative to the first control shaft 8. The apparatus further comprises a reversal preventing device F which, when the engaging link pairs 13 and 14 of the retaining device are stretched to a diameter-reduced position, contacts and limits the engaging link pairs 13 and 14 to an outwardly bent position where flexing pivotal portions of the engaging link pairs 13 and 14 project radially outward.

The invention discloses a male plug, a female plug and a connecting mechanism, belonging to the technical field of plugs. The connecting mechanism comprises the male plug and the female plug which are plugged with each other, wherein the male plug comprises a first base body and a plurality of first terminals, and the first terminals are at least arranged on a first side wall in the circumferential direction of the first base body; and the female plug comprises a second base body and a plurality of second terminals, an insertion groove is formed in the second base body, and the second terminals are at least arranged on the second side wall in the circumferential direction of the insertion groove. According to the male plug, the female plug and the connecting mechanism, an occupied area can be saved, and a space utilization rate is improved.

The invention discloses a mobile phone display screen airing device. The device comprises a rotating shaft, a tray, a supporting barrel, a telescopic rod, a pressure spring and a clamping frame, a clamping arm and a locking nut. The tray center is fastened connected with the upper end of the rotating shaft, the outer wall of the supporting barrel is provided with external threads, a cylindrical hole is formed in the supporting barrel, a rectangular hole is formed in the upper end of the cylindrical hole, the supporting barrel is connected with the tray through external threads and is fastenedby the locking nut, a boss is arranged at the lower end of the telescopic rod, the upper end of the telescopic rod penetrates through the supporting barrel, the pressure spring is arranged on the telescopic rod in a sleeved mode, one end of the pressure spring is in contact with the bottom of the cylindrical hole, the other end of the pressure spring is in contact with the boss, the lower end of the clamping frame is hinged to the top end of the telescopic rod, the clamping arm is hinged to the upper end of the clamping frame through a torsion spring and a pin shaft, the two clamping arms aremutually clamped under the action of the elastic force of the torsion spring, so that the mobile phone screen can be cleaned after being inverted, the mobile phone display screen airing device is vertical and then is drained off, workers do not need to wait for draining off beside the equipment, and the cleaning efficiency is improved.

The invention relates to a preparation method of an absorbable medical suture coated with collagen. The preparation method comprises the following steps: (1) collagen fibers separating; (2) purification; (3) rinsing; (4) cutting; (5) virus inactivation twice; (6) chrome tanning; (7) washing; (8) crosslinking; (9) dehydrating; (10) coating; and (11) polishing. The suture body is soft, easy to operate, good in positioning performance and high in tensile strength and knotting strength; medical and edible additives and vitamins are added, so that the harm of chemical residues to a human body is avoided, the biocompatibility is good, and the inflammatory response in wound healing is reduced; moreover, the needle and thread connection is smooth, the operation resistance is small, the dragging is slight, and the damage is extremely small.

The invention discloses a livestock underpinning and a using method. The underpinning comprises a stand column, a threaded rod, a threaded sleeve, an intermediate connecting rod and a supporting rod,wherein a spike end is arranged at the lower end of the stand column; the threaded rod and the threaded sleeve are coaxially arranged with the stand column; the threaded rod is used for driving the threaded sleeve to slide along the stand column through threads; one end of the intermediate connecting rod is hinged with the threaded sleeve, and the other end of the intermediate connecting rod is hinged with the supporting rod; the lower end of the supporting rod is hinged with the stand column; a four-bar link and a slide plate are arranged outside the supporting rod; one end of the four-bar link is hinged with the supporting rod, and the other end of the four-bar link is hinged with the supporting rod; the slide plate is in sliding connection with the supporting rod; and a four-link bar driving device used for driving the four-link bar to open or close is further arranged at the lower end of the slide plate. The livestock underpinning can be reliably fixed on the ground, the supportingrod and the four-bar link can form a barbed structure with a relatively large area at the side part of the stand column, and the barbed structure enables the side part of the stand column to firmly hold soil and prevents the stand column from being pulled up.