53results about How to "Tighten firmly" patented technology

Disclosed is a device for tightening a shoelace, the device comprising a shoe main body formed with an opening and a tongue finishing an inside of the opening; a shoelace connecting opposite sides of the opening; a handle connected to at least one of shoelaces connecting the opposite sides of the opening; and a hook formed in rear of the shoe main body and holding the shoelace pulled by the handle.

A method and apparatus for replacing damaged meniscal tissue includes a meniscus implant including a porous body having a plurality of interconnected open micro-pores and one or more open cavities for receiving meniscal tissue. The interconnected micro-pores are arranged to allow fluid to flow into the porous body and are in fluid communication with the one or more open cavities.

A cutting unit includes a spindle, a spindle housing, a support flange on the front of the spindle, a cutting blade detachably supported to the support flange, and a fixing flange for fixing the cutting blade to the support flange. The support flange includes a boss portion adapted to be inserted through a central opening of the cutting blade, a flange portion for supporting one side surface of the cutting blade, and a cylindrical portion for engaging the front of the spindle. The flange portion has a suction hole opening toward the fixing flange, and the cylindrical portion has a communication hole communicating with the suction hole. The communication hole is connected to a vacuum source through a rotary joint fixed to the spindle housing so that communication between the communication hole and the vacuum source is selectively made by an on-off valve.

The invention relates to a method for hoisting a self-release vertical upright rod and a special lifting tool, and belongs to the technical field of electrical network construction. The special lifting tool comprises a positioner (6), a special suspension cable (1), a suspension hook, a pulley release (5), a release rope (3) and a lock catch (4); the pulley release consists of a pulley and a suspension ring connected together; each of the two ends of the special suspension cable is provided with a cable sleeve (8); the two ends of the suspension cable are put together to form a double suspension cable; the double suspension cable is connected with the cable sleeve via the lock catch; one end of the release rope is connected with the lock catch, and the other end of the release rope traverses the pulley of the pulley release; and the suspension ring of the pulley release is hung on the suspension hook. The hoisting method and the special lifting tool have the benefits of being low in risk, without need for manual rod-climbing release, safe, reliable, fast in rod erecting, reduced in processes of rod-climbing release, rod erecting, rod-position recalibration and the like, reduced by at least half time, high in quality, vertical in rod positioning, convenient to measure and calibrate, and improved in construction quality.

A cutting unit includes a spindle, a spindle housing, a support flange on the front of the spindle, a cutting blade detachably supported to the support flange, and a fixing flange for fixing the cutting blade to the support flange. The support flange includes a boss portion adapted to be inserted through a central opening of the cutting blade, a flange portion for supporting one side surface of the cutting blade, and a cylindrical portion for engaging the front of the spindle. The flange portion has a suction hole opening toward the fixing flange, and the cylindrical portion has a communication hole communicating with the suction hole. The communication hole is connected to a vacuum source through a rotary joint fixed to the spindle housing so that communication between the communication hole and the vacuum source is selectively made by an on-off valve.

An electromotive linear drive unit comprising a housing, a motor pot, a connection piece, a power supply cable, a deployable lifting tube, and a fixed flanged tube is designed in such a way that it can be made at a low cost while being easier to assemble than previously known embodiments thereof. In accordance with the invention, at least the connection zones of the housing (11) to the motor pot (12) and the attachment part (13) are configured in a cylindrical manner while the connection zone are formed by means of a rotary motion of the housing (11) and/or the motor pot (12) and/or the attachment part (13) in a radial direction. The connection zones are configured form-fittingly in an axial direction. This type of connection is realized by means of meshing threads. The linear drive according to the invention is particularly suitable for driving the adjustable components of a slatted frame or armchair.

The present invention relates to a kind of built-in movable pallet for containers, including the rectangular chassis with several rollers at the bottom. Several guiding mechanisms are set at both sides and the corners of front edge of the above-mentioned chassis; guiding mechanisms are guide roller structures; outer peripheral surface of guiding rollers protrudes to side edge of the chassis; locking mechanisms are installed at the two corners at rear edge of the chassis. In this invention, guide rollers are installed at two sides and the corners of front edge, so that the sliding friction with high resistance is converted into rolling friction with low resistance. While loading, outer peripheral surface of the guide rollers at corners of front edge contacts the firm doorframe of the container firstly, so relative parallel position of the pallet and the container is adjusted properly and basically; while further pushing, the relative position between the pallet and the container may be adjusted adaptively by guide rollers at sides, so as to prevent wall of the container from being crashed and even cut and protect the container effectively; the locking hook at corners of rear edge is reasonable structure, convenient for use and can be locked reliably.

The invention discloses an auxiliary device for raising buttocks during transvaginal ultrasound. The auxiliary device includes a sickbed for patients to lie down, the sickbed includes a lifting part used for lifting the waist of the patient and a supporting part used for placing the feet of the patient, the lifting part is provided with a through window in a communication mode, the through windowis provided with a waist pillow plate used for lifting the waist of the patient, the lower part of the waist pillow plate is hinged to a piston rod used for driving the waist pillow plate to move up,the piston rod is arranged below the waist pillow plate and matched with an external negative pressure motor in a linkage mode, and the supporting part is provided with a limit part used for restricting the movement of the legs of the patient. According to the auxiliary device for raising the buttocks during the transvaginal ultrasound, the structure is simple, operation is portable, the auxiliarydevice is suitable for most patients, and can make patients with poor physical strength, obesity and inconvenient operation better lie down, especially for elderly patients, and ultrasonic exploration of doctors is convenient.

The invention discloses a lamp focal length adjusting mechanism. A lamp light source is connected with a lamp radiator housing; an adjusting assembly is connected with the lamp radiator housing; the lamp light source is fixedly mounted on the lamp radiator housing through a light source bracket and fixing screws; the adjusting assembly comprises a rotating ring, a focusing lens, a lens fixing ringand a silica gel adjusting ring, wherein the focusing lens is mounted in the lens fixing ring in a snap joint manner; a protruding strip on each of two sides of the lens fixing ring corresponds to agroove in the corresponding side of the lamp radiator housing, and is mounted in the lamp radiator housing; the rotating ring is clamped on the lamp radiator housing, and positioning protruding pointsin the rotating ring correspond to oblique grooves of the lens fixing ring; and the smooth surface of the silica gel adjusting ring is connected to a groove in the outer wall of the rotating ring ina sleeving manner. Through the adoption of the lamp focal length adjusting mechanism disclosed by the invention, the problems that in the prior art, in the process of lamp focal length adjustment, themachining accuracy requirement is high, the processing cost is high, the adjusting process is not smooth and the mechanism is unstable after being used for a long term, are solved; and the lamp focallength adjusting mechanism is simple and compact in structural dimension, low in cost, and stable in effect.

A saw blade fixing device is constructed so that a screw flange of a screw body tightened into a screw hole of a spindle is made to have a truncated cone shape, an operating lever is provided to be operable to pivot to a received position and a use position by reversing the operating lever between front and back sides, and this operating lever does not protrude from the truncated cone shape when it is received.

The invention discloses a sleeve screwing device, including a base. The end, near a sleeve, of the base is provided with the sleeve screwing device, the sleeve screwing device includes a sub-driven rotating shaft which is rotatably arranged at the end, near the sleeve, of the base, a driving part and a rolling wheel are arranged on the sub-driven rotating shaft; the end, away from the sleeve, of the base is provided with a driving device, a driving end of the driving device is connected with a driving part in a driving mode; the bottom of the base is provided with a sleeve holding device corresponding to the rolling wheel; and the device has the beneficial effects of sleeve continuous torsion, labor saving, high work efficiency, the compact structure, stable driving, large output torque and the stable rotation of the sleeve.

The invention discloses a screwing mechanism which is used for centering and screwing a coupling pre-screwed on a steel pipe and comprises an annular rotating part driven by a driving device to rotate, and the inner wall of a shaft hole of the annular rotating part is provided with at least two outwards-sunken arc-shaped adjusting faces. Main clamp assemblies are installed in the shaft hole and are arranged in one-to-one correspondence with the arc-shaped adjusting faces, the near end of each main clamp assembly is in rolling connection with the arc-shaped adjusting faces, and the far end of each main clamp assembly is arranged in a sliding mode in the radial direction under the matching action of a limiting mechanism and the arc-shaped adjusting faces, so that the main clamp assemblies can have a coupling clamping state or a receding state. The mechanism at least has the following advantages that centering clamping and screwing of the coupling can be achieved, and meanwhile, the coupling can be prevented from being damaged due to too large screwing force in the mode.

The invention belongs to the technical field of medical instruments, and particularly relates to a tissue ligation device for laparoscopic surgery. The tissue ligation device comprises a ligation barand a gathering rod, wherein the ligature bar includes a rack, a surface of the rack is provided with a plurality of first anti-skid teeth, and the first anti-skid teeth are distributed along a lengthdirection of the rack; a first end of the rack is connected with a tooth cavity, and at least one second anti-skid tooth for meshing and limiting with the first anti-skid teeth is arranged in the tooth cavity; a second end of the rack is inserted into the tooth cavity and movably matched with the tooth cavity; when the second end of the rack moves to a target position, the corresponding first anti-skid teeth on the rack are meshed and limited with the at least one second anti-skid tooth in the tooth cavity so as to perform ligation on focus tissues; the gathering rod is provided with a guidehole; and the gathering rod is used for abutting against the tooth cavity, so that the second end of the rack penetrates through the guide hole and the gathering rod guides movement of the rack through the guide hole. During the use of the tissue ligation device in the laparoscopic surgery, especially laparoscopic radical rectal cancer surgery, the tissue ligation device can quickly and effectively ligature, tighten and block intestinal canals, and facilitate irrigation of the intestinal canals to ensure a tumor-free principle.

The invention provides a broom manufacturing method and broom manufacturing equipment, and belongs to the field of household cleaning equipment. The broom manufacturing method comprises the following steps of 100, flushing the tail end of a broom head; 200, arranging a metal ring on the broom head in a sleeving way, wherein the metal ring is close to the tail end; 300, radially compressing the metal ring to tighten the broom head; 400, inserting a broom handle into the broom head from the tail end, and fixedly tightening the metal ring in the broom head. The manufacturing equipment comprises an operating platform, a buckling and pressing unit, a knocking unit and a delivery unit, and is applied to the broom manufacturing method. The broom manufacturing method and the broom manufacturing equipment are high in broom manufacturing efficiency and quality and low in cost.

The invention relates to a cable bushing to be screwed to a wall having an opening for at least one prefabricated cable, said cable bushing comprising: - two partial elements which are screwed to oneanother in the mounted state, a threaded portion to be guided through the opening, said threaded portion having a screw thread and being formed by the two partial elements, each forming a part of itsperiphery, a receiving portion which adjoins the threaded portion in the axial direction of a rotational axis of said threaded portion, and which has, at least in parts, a larger outer diameter than the threaded portion, and which has at least one receiving opening for receiving at least one strain relief ferrule. The cable bushing according to the invention is characterised in that the division between the two partial elements is designed eccentrically such that the periphery of the receiving opening, extending about the at least one strain relief ferrule, in one of the partial elements is larger than that in the other partial element.

The invention discloses a flexible automatic assembly production line for oil cylinders. The flexible automatic assembly production line for oil cylinders comprises a transfer mechanism, a lifting mechanism, an oil injection mechanism, a push rod mechanism, a guide mechanism, a sleeve feeding mechanism, a sleeve replacing mechanism, a first servo jacking mechanism, a first limiting mechanism, an auxiliary power assisting mechanism, a first moving mechanism, a second limiting mechanism, a guide sleeve screwing mechanism, a second servo jacking mechanism, a rotation stopping mechanism, a pressing mechanism, a rotation stopping adjusting mechanism and a second moving mechanism. The transfer mechanism enables a cylinder body to enter from the left end of the production line, the cylinder bodysequentially passes through various structures and then is output from the right end, the transfer mechanism transfers the cylinder body to the lifting mechanism, the lifting mechanism lifts the cylinder body, the transfer mechanism automatically withdraws, and the lifting mechanism transfers the cylinder body to a next positioning tool. The flexible automatic assembly production line for the oilcylinders is reasonable in design; and the production line is high in automation degree, stable in assembly process, standard in operation, reliable in assembly quality, high in production efficiencyand low in labor intensity, and workpieces are continuously and automatically transferred and assembled.

A steering apparatus for a vehicle includes a stem pipe disposed in a head pipe by upper and lower bearings interposed therebetween, a seal member for covering the upper bearing, and bottom and top bridges mounted on lower and upper ends of the stem pipe, respectively. A single fastening bolt, having a step formed between a head and a threaded surface thereof, is fitted in a pipe insertion hole of the top bridge and the upper threaded portion of the stem pipe. The stem pipe is firmly tightened and supported by a slot-tightening mechanism of the top bridge. The fastening bolt is tightened by only a tightening force required to keep the fastening bolt from loosening. Also, a number of components required for the inventive steering apparatus is reduced, since an additional component, previously used for preventing loosening of a fastening bolt, is made unnecessary.

The invention discloses a manual shaking packer, and relates to the technical field of packers. The manual shaking packer comprises a base, a tightening mechanism is arranged on one side of the top ofthe base, and the tightening mechanism is rotatably connected with the base through a rotating shaft; and the tightening mechanism comprises a fixing shaft, a central shaft, a central gear, planetarygears, outer gear rings, a first friction block, a one-way bearing, a bearing sleeve, a rocker, a pressure spring and a first support. According to the manual shaking packer, the fixing shaft is arranged in the center of one end of the tightening mechanism, the one-way bearing is arranged on the outer side of one end of the fixing shaft, the bearing sleeve is fixedly arranged on the outer side ofthe one-way bearing, and the rocker extending to the outer side of a shell is fixedly arranged on the top of the bearing sleeve; and the central shaft penetrating through the tightening mechanism isfixedly arranged in the center of the side, away from the rocker, of the fixing shaft, the central gear is fixedly arranged on the outer side of the central shaft, three sets of planetary gears meshedwith the central gear are arranged on the outer side of the central gear, and the outer gear rings are arranged on the outer sides of the planetary gears.

Disclosed is a ligator for a surgery. The ligator is characterized by comprising a case, a hood, an outer pipe, a pin base, a pin chamber, a pin sheet and a drive device. The rear end of the outer pipe is located at the front end of the case. The hood is fixed to the front end of the outer pipe. The pin base and the pin chamber are arranged in the hood. The pin sheet is arranged in the outer pipe.The drive device is arranged in the case and can drive the pin sheet to move back and forth in the axial direction of the outer pipe. A first pin guide groove and a second pin guide groove are formedin the two sides in the width direction of a board body of the pin base. An arc section of the first pin guide groove and an arc section of the second pin guide groove are arranged on the board bodyof the pin base in the thickness direction in parallel to form a spiral groove for ligation nail forming. The front end of the pin sheet is slidably connected with the pin base. The pin chamber abutsagainst a pin placing opening. A first operation opening for accommodating tissues is formed in the pin base. A second operation opening is formed in the side of the hood. According to the ligator andthe ligation nail for the surgery, the ligation reliability of haemorrhoids and other tubular tissues is high, and continuous ligation can be carried out for multiple times.