131results about How to "Lock tightly" patented technology

A display suspending frame comprises a seat having a back surface and two front surfaces which are supported at two opposite edges of the back surface by using respective vertical surfaces; the two front surfaces being parallel to the back surface; an upper side of the back surface having a positioning hole; in assembly, the seat being locked to a wall by screwing through the positioning hole; and each front surface having two long holes which are arranged at a lower side of the front surface; each long hole being formed with an enlarged receiving hole; an upper edge of each front surface having two recesses. A lower side of the back surface has at least two aligning holes; in assembly, the seat is locked to a wall by screwing through the aligning holes.

The purpose of this invention is absolute elimination of medical cross-infection by endoscopy. It offers an endoscope system with a disposal sheath. The disposal sheath via anterior end cap connects the capsule which covers the outside of the endoscope and the disposal channel which sheathe in the endoscope channel and the fluid-air channel, and all these parts are joined together in a whole body. After the disposal channel is passed through the endoscope channel, its posterior disposal channel can be blocked into the elastic sealing cap via the guide tube, the posterior disposal channel's orifice need to be heated and melted and cut up simultaneously and its cut edge is in shape of V-shape by using one kind of heat fusion forceps after the use and before the retracting from the endoscope channel. A fluid-air exit and a sucking channel adapter are set on the posterior endoscope, convenience to connect with the fluid-air channel and the three-way sealing cap, the fluid-air channel may be single cavity channel or double cavity channel or two single cavity channels join in one channel together at nearing jet channel site, the channel sizes may be cylinders, or flat sizes. Both the outer surface of the endoscope and the inner surface of the endoscope channel are protected from pollution by the disposal sheath, thus ensures patients to safely use the permanent endoscope.

A metal stud wall and method of assembling the same are characterized by a stud bridging/spacing member generally having at least three longitudinally spaced apart notches for receiving and engaging therein a web of a metal stud. The notches extend at an incline to the longitudinal axis of the elongate member. In the assembly of a metal stud wall having a row of metal studs each having at least two flanges interconnected by a web, the stud bridging/spacing member is inserted through aligned openings in the webs of three or more studs and the webs are engaged in the notches to position and hold the metal studs at a prescribed spacing. Successive bridging/spacing members may be inserted through further studs and overlapped with the preceding bridging/spacing member, and engaging a common stud, to position and hold the studs at the prescribed spacing. The stud bridging/spacing member not only spaces the studs, but reinforces the studs against deflection and rotation caused by transverse, axial and lateral loading.

An air resistance appliance that is easily attached to the shaft of a golf club or a baseball bat and that is quickly and easily collapsed into a small, lightweight package for storage or transport with the user as in his or her golf bag.

A plasmapheresis centrifuge bowl comprises a ring-shaped dynamic sealing assembly having a ring-shaped static frictional assembly and a ring-shaped rotary frictional upper cover, both of which have a sealing surface. A dynamic seal can be provided between the contacting portions of the sealing surfaces of the ring-shaped static frictional assembly and the ring-shaped rotary frictional upper cover. The ring-shaped static frictional assembly comprises a ring-shaped ceramic piece. A ring-shaped frictional area is provided on the ring-shaped rotary frictional upper cover, and the heat transfer rate of the ring-shaped frictional area is less than the heat transfer rate of the ring-shaped ceramic piece. When the plasmapheresis centrifuge bowl of the present invention is operated to treat the blood, the heat generated by the friction can be conducted and dissipated into the air via the ring-shaped ceramic piece. As a result, the rise in the temperature of the plasmapheresis due to the frictional heat can be effectively avoided.

This invention is a dynamic orthodontic bracket system which allows brackets to be adjusted for particular angulations required for each individual tooth of a patient, while the frames are continuously attached to tooth surface. The orthodontist manually adjusts the relationship of a bracket and a frame during treatment eliminating the necessity of a full repositioning of all components. The bracket is positioned such that it can move in various directions to achieve a proper angulation for tooth repositioning. The base of the bracket and the interior surface of the frame can be textured to provide friction and secure the components once positioned for proper tooth movement. The exterior of the frame can also be textured to provide more secure attachment to the surface of the tooth. This system will lead to lower treatment cost and quicker adjustments of the orthodontic bracket system.

A bolt assembly is provided with a bearing seat, a screw, a pull member and a cover. The bearing seat has a through hole, a concave portion and an accommodation room. The screw is coupled to the bearing seat. The screw includes a threaded portion, a head portion and a pull groove. The threaded portion extends out of the through hole. The head portion is positioned in the concave portion. The pull groove is located corresponding to the accommodation room. The pull member is located on top of the bearing seat. The pull member has at least one pull point at a lower end thereof. The pull point extends in the accommodation room and is located corresponding to the pull groove of the screw. The cover is adapted to cover the bearing seat and confines the pull member in the cover.

The invention discloses a supersonic wind tunnel model pitching motion protection device. The pitching motion protection device comprises a transverse support, the main body of the transverse supportis a tubular support rod, and the tubular support rod penetrates through the mass center of an aircraft model to support the aircraft model on the central axis of a wind tunnel test section; a motionbearing, a mechanical limiting mechanism and an anti-impact conical surface locking mechanism are sequentially installed on the tubular supporting rod extending out of the left side of the transversesupport outside the wind tunnel test section, and a motion bearing, a mechanical limiting mechanism and an emergency forced zero returning mechanism are sequentially installed on the tubular supporting rod extending out of the right side of the transverse support. The pitching motion protection device can provide three-level protection from weak to strong for an aircraft model of a supersonic windtunnel simulation test, has the advantages of being reliable in structure and convenient to control, has the functions of high resistance to high-energy impact, forced zero returning and the like, and can be expanded to be used in supporting model systems on the two sides of a subsonic wind tunnel and a transonic wind tunnel.

The invention discloses a conveniently installed billboard device, which comprises a mounting base body and a billboard. The first sliding cavity and the second sliding cavity are symmetrically arranged up and down. The mounting base between the first sliding cavity and the second sliding cavity is provided with an unlocking sliding cavity. The left bottom of the first sliding cavity and the left top of the second sliding cavity There is a connecting groove running through the unlocking sliding chamber between them, and the bottom of the right side of the first sliding chamber and the second sliding chamber is provided with a locking groove extending downward, and the locking groove is provided with an engaging groove set through the locking groove and extends to the left and right. The side extension is set, the top pressure slider is slidably connected in the joint groove, the guide chute is symmetrically arranged up and down in the extension section on the left side of the joint groove, and the left edge of the top pressure slider is symmetrically provided with protrusions extending into the guide chute. The sliding part, the extension section on the right side of the engaging groove runs through the mounting base body and communicates with the connecting groove; the invention has simple structure, saves time and effort in installation, and is convenient for maintenance.

A lifting rod device of shower has a lifting rod, a sucker mechanism and a locking mechanism. A penetrating hole penetrates the upper end part. The locking mechanism has a support seat connected to the lifting rod, a lower wedge block that can be connected in the support seat in a forward and backward sliding manner, an upper wedge block that can be connected in the support seat in an upward and downward sliding manner and a nut, a transversal threaded rod is fixedly arranged on the lower wedge block, the threaded rod can rotationally pass through the support seat; the nut is screwed to the threaded rod and connected out of the support seat in a relying manner, and the lower wedge block can be driven to move forward and backward by rotating the nut.

A utility knife with a locknut includes a case, a blade holder, a blade, a movable pushbutton and a locking device. A blade extension/retraction opening is formed at a front end of the case and provided for the blade to extend or retract, and a movable chute is formed on a side of the case and provided for the movable pushbutton to move. The blade is correspondingly installed in the case by the blade holder, the blade controls its extension and retraction in the blade extension/retraction opening by the movable pushbutton. The locking device includes a locking rod and an adjusting device and uses the adjusting device to adjust the locking rod and lock the blade.

A make-up-holding foundation liquid comprises a film-forming agent comprising trimethylsiloxy silicate and sodium carboxymethylcellulose, wherein that film-forming agent comprise trimethylsiloxy silicate and sodium carboxymethylcellulose. As that foundation liquid of the invention is added with the mixture of the oil phase and the water phase such as trimethylsiloxy silicate and sodium carboxymethyl cellulose, the invention become a two-phase film forming technology, the film formed by the foundation liquid can tightly lock the toner, and simultaneously has the dual effect of water resistanceand oil resistance, thereby improving the anti-migration property of the foundation liquid.

A nut is employed to fix a faucet on a wash basin or a kitchen basin and contains an external driving member and an internal screwing member. The external driving member includes a cylindrical fence, an accommodating cavity, a first edge, and a second edge; the cylindrical fence has at least one limiting block and a griping face. The internal screwing member is fitted into and retained with the accommodating cavity and includes an annular cliff, a through orifice, a third edge, and a fourth edge; the annular cliff has plural slots longitudinally extending and isometrically arranged to the fourth edge from the third edge so as to define a plurality of flexible retaining portions, each having an inner threaded section; the annular cliff also has at least one longitudinal recess for retaining with the at least one limiting block of the external driving member and has a contacting fringe.

The present invention discloses a completely laparoscopic staged hepatectomy using round-the-liver ligation, which is carried out as follows: (1) a complete laparoscopic operation is performed with general anesthesia using round-the-liver ligation, the branches of the portal vein of the hemiliver to be removed are ligated, meanwhile a tourniquet is used to tighten the connecting part between the right and the left hemilivers to block the communicating blood flow between the hemiliver to be removed and the hemiliver to be reserved, a drainage tube is put into the peritoneal cavity at the hepatic hilus, then close the peritoneal cavity, and the operation is completed; (2) the patient gradually resumes eating after the first operation, and recuperate for 6-15 days to make the volume of the hemiliver to be reserved increase to the expected volume of the future liver remnant, in which the expected volume of the future liver remnant should be at least 30-40% of the standard liver volume; (3) after the volume of the hemiliver to be reserved has increased to the expected volume of the future liver remnant, a complete laparoscopic liver resection is carried out with general anesthesia to remove the diseased hemiliver, and then the patient is nursed to be completely recovered.

This invention is a dynamic orthodontic bracket system which allows brackets to be adjusted for particular angulations required for each individual tooth of a patient, while the frames are continuously attached to tooth surface. The orthodontist manually adjusts the relationship of a bracket and a frame during treatment eliminating the necessity of a full repositioning of all components. The bracket can be locked or unlocked within the frame with the use of a plate having a tapered thickness. The bracket is positioned such that it can move in various directions to achieve a proper angulation for tooth repositioning. The exterior of the frame can also be textured to provide more secure attachment to the surface of the tooth. This system leads to lower treatment cost, a more stable bracket system, and quicker adjustments of the orthodontic bracket system.