31results about How to "Speed up tightening" patented technology

A winch used for tightening a strap to retain an article, which may be cargo, on the deck of a vehicle has a ratcheting mechanism which tightens the strap around a cylindrical shaft. A ratchet cap installed on the winch has two sections. One of these sections is fixedly attached to the winch drive shaft This first section has a plurality of spaced recesses running around a surface plate thereof. Spring urged pins with rounded end surfaces are mounted in receptacles formed in the second cap section. The rounded ends of the spring urged pins are urged against the surfaces of the recesses. The pins are prevented from moving out of the recesses in one direction by a right angled end portion of the recess in this one direction and are free to move out of a recess over a slanted recess end portion into an adjoining recess in the opposite direction. At least one aperture is formed in the cap into which a lever for driving the winch is fitted. When the lever hits against the deck and cannot be moved any further, the ratchet cap can be rotated in its free moving direction to enable further driving of the winch downwardly to tighten the strap.

A multilayer annular seal assembly including at least one outer sealing ring including at least one inner annular space and at least one inner sealing ring formed with one or more inner annular chambers.

A wrench or one way drive has a flexible head (2) with a split aperture (20) for loosely engaging a separate drive such as a socket or the head of a fastener (31) including a nut, bolt, screw or the like. Cam means, preferably pins (11,11a), are located on a handle (3) and engage the head (2) preferably through slots (21,22) in the head. The slots diverge outwardly so that as the handle is moved relative to the head the split aperture (20) closes and the flexible head (2) increasingly clamps a drive socket as more torque is applied to the handle.

A locking device for at least one strand, including a first portion and a second portion. The device includes an articulation which connects the portions to one another, the first portion having a first locking zone and a first biasing zone, the second portion having a second locking zone and a second biasing zone, the articulation enabling the locking zones to come relatively closer together when the biasing zones move away from one another, and vice versa, the locking device further including a primary guide which retains each strand between the locking zones, as well as an elastic mechanism which biases the locking zones toward one another.

The present invention provides a tightening structure with which a reduction in processing steps is achieved without modifying the shape of a partner member an improvements in bolt strength and fatigue strength are achieved, and with which the fitting length of a thread ridge is not altered greatly in comparison with a conventional tightening structure such that a size reduction can be achieved, thereby contributing greatly to a reduction in the weight of a vehicle.

The present invention pertains to a screw for use in nonmetal objects comprising a plurality of cut-aiding portions formed by the longer and shorter cutting surfaces inclined toward opposite directions. Further, a cutting edge formed by the junction of any two adjacent cutting surfaces presents in a fastening direction of the screw. Thus, the cutting edge assists the threads to thoroughly severe and to shatter the fibers and debris of the objects, which can also be accommodated into the cut-aiding portions. Also, the ridge of the longer cutting surface aids in cutting fibers and further guides the debris out. In this manner, the present invention facilitates to enhance cutting capability for obtaining less screwing resistance, to prevent the destruction of the object and to increase the screwing speed.

The protection kit comprises at least one post comprising at least one side opening, at least one rail, and at least one sleeve comprising at least one deformable tab. The sleeve is operable to receive a rail within its interior and to enter a side opening with deformation of at least one tab. Preferably, at least one opening is fitted with a tooth and the tab is deformable elastically and comprises an opening to receive the tooth. The insertion of a sleeve into the opening of the post causes the tab to deform until the tooth is located in the opening of the tab and the insertion of the rail into the interior of the sleeve restrains the tab.

The invention discloses an automatic broken belt capturing device, belonging to the technical field of belt transportation. The capturing device comprises a support, a non-return support roller, a vertical roller and a wedge block, wherein the support comprises a lower support, an upper support and a main support, and the upper support, the lower support and the vertical roller are symmetrically and fixedly arranged at two ends of the main support; the wedge block comprises an upper wedge block and a lower wedge block; the lower wedge block is connected with the lower support, the upper wedge block is connected with the upper support, and after the lower wedge block and the upper wedge block are combined with each other, the lower wedge block and the upper wedge block form a space which can be tightly closed and can be used for capturing the broken belt; a tension spring is arranged between the upper wedge block and the lower wedge block; and the non-return support roller arranged in the middle of the main support is connected with the lower wedge block through a connecting rod. The capturing device not only can capture the broken belt to avoid the capturing delay or the second breakage, but also can adapt to the transportation of various materials with different heights to prevent the belt from deviation; and the automatic broken belt capturing device is reasonable and simple in structure, low in production and maintenance costs, and reliable in running, thereby being suitable for popularization and application during production.

The invention discloses a bioabsorbable antioxidant pulling beautifying line which comprises a suture needle and a line body; the line body comprises the following components: a substrate and an antioxidant; the substrate comprises at least one of poly(p-dioxanone), polycaprolactone and poly-L-lactic acid; the antioxidant comprises at least one of vitamin E, glutathione and rosemary extract. The bioabsorbable antioxidant pulling beautifying line has the characteristics of bio-absorbability and decomposition, has excellent antioxidation effect and ageing resistance and is capable of keeping proper toughness for a long time. The invention also discloses a line-burying method for removing under-eye puffiness. The effects of eliminating fat and removing under-eye puffiness can be achieved in the manner of adopting a specific line paving method for burying the pulling beautifying line in an orbital fat layer and an orbital diaphragmatic ligament, keeping the line body in full contact with adipose tissue, boosting fat metabolism absorption and enhancing the fastening and fixing effects of the orbital diaphragmatic ligament to the orbital fat. The line-burying method for removing under-eye puffiness requires no fat removal, is high in safety and is capable of achieving an excellent beautifying effect.

The invention provides a quick tightening wrench applied to interlocking double nuts. A driving bevel gear, a driven bevel gear, a rotation direction adjusting rod, a ratchet wheel, a pawl, a cam, anouter shell and a handle are included; according to the quick tightening wrench applied to the interlocking double nuts, a main nut is tightened through small teeth on the outer shell, a locking nut is tightened through teeth in the driven bevel gear, and it is achieved that the two nuts are tightened at the same time; according to the quick tightening wrench applied to the interlocking double nuts, a ratchet mechanism is fully utilized; by adjusting the direction of the rotation direction adjusting rod, when the double nuts are screwed too tightly and difficult to take down, the rotation direction adjusting rod of the wrench can be shifted to the opposite direction, and then the handle is rotated by a certain angle to the opposite direction of the previous tightening direction, so that the handle can be smoothly taken down; and the tightening speed of the double nuts is effectively increased, the operation efficiency by a worker is effectively improved, and the quick tightening wrenchapplied to the interlocking double nuts is more convenient and safer for workers in high-altitude operation.

Swimming / diving goggles includes a main body with a head strap coupling portion. An attachment portion is formed on an end of a head strap. A buckle includes two sidewalls defining a space. An eccentric axle extends between upper front portions of the sidewalls and engages with the attachment portion. Front and rear posts extend between the sidewalls and define a passage. The end of the head strap extends through a rear opening of the buckle into the space, extends through the passage, and is wound around to form a bend. The head strap includes an inner section and an outer section having the attachment portion. The head strap and the buckle are jointly movable. A tightening force acting on the inner section makes the inner section form another bend in the passage. The inner section presses against the front post and the rear post to position the head strap.

The invention discloses a preparation process of electrospinning nanofibers. In step 1, gelatin is added to anhydrous acetic acid, then polycaprolactone is added, and stirred at low temperature for 18-24 hours to obtain a mixed acetic acid solution; in step 2, hydroxyl phosphorus Limestone powder, dandelion extract and magnesium alloy particles are added to the sealed ball milling device for low-temperature wet ball milling for 30-60 minutes, and dried to obtain a mixed solid; step 3, slowly add the mixed solid to the mixed acetic acid solution at room temperature and stir evenly, microwave at low temperature React for 1-3 hours to obtain the precursor spinning solution; step 4, slowly add distilled water and glutaraldehyde to the precursor spinning solution and stir evenly at low temperature to obtain the spinning solution, and then perform electrospinning to obtain the nanofiber membrane; step 5 , the nanofibrous membrane is rolled into a fiber column, and then gradiently heated for 12‑24h to obtain a nanofibrous scaffold. The invention uses gelatin and polycaprolactone as a double support structure to form a slow-release structure, controls the exposed area of ​​the magnesium alloy and the hydroxyapatite, and thereby controls the degradation rate.

An electric portable power tool, having a housing, a shaft, a control cam, an electric drive accommodated in the housing to drive the drive shaft, and an output unit that is positively connected with the drive via a mechanical shut-off clutch to transfer torque from the drive to an insertion tool connected with the output unit. The mechanical shut-off clutch comprises a control ring that is axially mounted against the force of the return spring and at least one switch element that is run on the control cam. The control cam is delimited at one end by a first switching contour for providing a release torque of the shut-off clutch and by a boundary contour at another end. The control cam is associated with a second switching contour for providing a pre-torque which is less than the release torque.

The invention discloses a disc stone dry-hanging veneer, which relates to the field of decoration and decoration, and includes a chassis. The surface of the chassis is slid along its radial direction and is provided with a plurality of clamping thin rods. The ends of the clamping thin rods away from the chassis are rotationally connected. Because of the shrapnel that presses the stone hanging surface against the surface of the chassis, the chassis is provided with a self-locking drive assembly for driving a plurality of clamping thin rods to shrink or expand. Aiming at the problems of insufficient applicability and complicated implementation steps in the prior art, the present invention adopts a plurality of thin clamping rods to hold the disk stone, and then compresses it with shrapnel to prevent it from falling off, and fix the disk stone, which has strong applicability and is easy to implement. convenient.

The invention relates to the field of highway safety facilities, in particular to an anti-blocking block for a three-wave beam guardrail. The anti-blocking block is installed on a column, and includes two column connecting plates, a backing plate and four wave beams for connecting wave beams The connecting plate, the said abutting plate is symmetrically installed on both ends of the connecting plates of the two columns; the side of the connecting plates of the two columns away from the column is provided with concave grooves, and the concave grooves The bottom is close to the column; the four wave beam connecting plates are symmetrically arranged, and a single wave beam connecting plate is installed on the top side of the concave groove, and the first connecting hole is opened on the wave beam connecting plate, The column connection plate is provided with at least two column connection holes. The invention can make the anti-theft splicing bolts exposed, which is convenient for installing the bolts and tightening the nuts.

The invention discloses a general surgery department operation wound recovery nursing device which comprises a limb restraining mechanism, a wound pressure applying mechanism and a binding mechanism, and the limb restraining mechanism comprises a butt joint assembly, a traction piece movably connected to one end of the butt joint assembly and a plurality of sets of sliding blocks movably installed at the end, away from the traction piece, of the butt joint assembly. An annular freely-fixed butt-joint assembly is arranged outside wounds of the four limbs of a patient, a traction piece and a plurality of sliding blocks are movably installed at the two ends of the butt-joint assembly respectively, and the two bases and the two bearing cushion blocks are connected through the multiple sliding blocks distributed annularly. Meanwhile, lifting pieces capable of applying contraction force upwards are installed on the inner sides of the two bases and the inner sides of the multiple sliding blocks between the two bases, and therefore after the device acts on the wound parts of the four limbs of the patient, an annular assembly formed by the components can lift and tighten the skin outside the wound along the wound.