64results about How to "Increase holding power" patented technology

The invention discloses a method for manufacturing a mobile phone shell. The method comprises the steps of preparing a metal substrate used for manufacturing the mobile phone shell; punching the metal substrate; bending the position, close to an antenna slot, of the punched metal substrate to obtain a bent part; conducting upsetting and extrusion on the bent part; conducting injection molding on the metal substrate to obtain a required plastic part; conducting filling injection molding on the bent part; conducting surface treatment on the metal substrate, the plastic part and filled plastic. By punching the metal substrate firstly, then conducting bending, upsetting and extrusion on the position, close to the antenna slot, of the metal substrate, obtaining the required plastic part through injection molding on the metal substrate, conducting plastic supplement, and finally conducting surface treatment on the whole workpiece, the method has the advantages that time for conducting surface treatment on the metal substrate can be shortened and production cost can be saved compared with the prior art. The invention further provides a mobile phone shell.

The invention provides a surgical instrument, in particular a portable stapler with stable clamping force. The present invention improves the actuation connection assembly of a surgical instrument, Aloc device is provided in that actuate connection assembly, A switch connection relationship between that closing sleeve and the actuate lever enables the actuating lever to simultaneously realize thetwo function of driving the end effector clamping and cutting and suturing, thereby simplifying the transmission structure of the handle, and simultaneously increasing the clamping force of the end effector clamping device by the action of the closing outer shaft, thereby achieving the technical effect of stable clamping.

The structure and devices described herein provide an improved attachment for a peripheral device, such as a stylus, to a computing device when not in use. A stylus may have magnets contained therein that cooperate with magnets in a computing device to magnetically secure the stylus to the computing device when not in use. In addition, a retractable interlock may automatically extend from the stylus when the stylus is in proximity of the computing device. The interlock is received in a receptacle of the computing device to provide an improved attachment through the mechanical interaction of the interlock and the receptacle. The interlock is biased in a retracted position and automatically extends through magnetic attraction with the computing device.

The invention discloses a planting method of black sesame and relates to the technical field of planting. The planting method of the black sesame includes the following steps: a, choosing a land; b, conducting site preparation and fertilization; c, conducting seed treatment; d, sowing seeds; e, intertilling and ridging; f, conducting topdressing; g, preventing insect disease; and h, harvesting. Comparing with the prior art, the planting method of the black sesame creates good soil environment for the root growth of the black sesame, improves the field permeability through close planting, enables the black sesame to grow strongly and be lodging-resistant, keeps the nutrition coordinate, promotes the roots to grow, increases the solid strength, avoids the lodging, and improves the yield of the black sesame.

A gravity anchor that includes one or more anchor units. The units are designed to be rotationally linked together so that multiple units can be used to provide the required weight. The units are designed for ease of handling on the vessel and to control the rotation of the units relative to each other to insure proper orientation on the seafloor. The units are designed to help them dig into the sea bed and enhance the drag and holding power

The invention provides a synchronous wheel driven elevator damping rail clamping device. The synchronous wheel driven elevator damping rail clamping device comprises a rail clamping device shell, a clamping mechanism, a transmission mechanism, a driving mechanism, a limiting switch and a control circuit board; the rail clamping device shell comprises a groove-shaped folded plate and three side plates which are used for closing the groove-shaped folded plate; two symmetrical rectangular through hole slideways are formed at the middle position of a front side plate of the groove-shaped folded plate; the clamping mechanism comprises two clamping guide blocks; the two clamping guide blocks are arranged on the outer sides of the two rectangular through hole slideways; the bottoms of the two clamping guide blocks are connected with the transmission mechanism arranged on the back sides of the rectangular through slideways; the transmission mechanism can drive the two clamping guide blocks tomove horizontally in the two rectangular through hole slideways; the driving mechanism is fixedly arranged on the back side of the front side plate through a supporting base; the driving mechanism isin transmission connection with the transmission mechanism; the limiting switch is arranged above the transmission mechanism and is used for limiting the horizontal movement distance of the clamping guide blocks; the limiting switch and the driving mechanism are electrically connected with the control circuit board; and the synchronous wheel driven elevator damping rail clamping device has the advantages of light weight, compact design, safety and reliability.

The invention discloses a device and method for regulating warping of a glass plate. The device comprises overflow down-drawing forming equipment. Glass plate cutting equipment is arranged at the rear end of the overflow down-drawing forming equipment, and a traction roller is arranged between the overflow down-drawing forming equipment and the glass plate cutting equipment. The holding force of the traction roller to a glass plate is increased, in an overflow down-drawing method, the clamping force of the traction roller is greatly affected by friction force between the surface of a boss and the glass plate, the friction coefficient of the surface of the boss is increased, friction force is increased, therefore, the glass plate runs stably through the method of increasing the clamping force, and warping badness caused by back-and-forth running of the glass plate is eliminated.

The invention relates to a planar permanent-magnetic working table. The planar permanent-magnetic working table comprises a shell, a panel, a pole core plate and a driving mechanism, wherein each of the shell and the panel comprises magnetism conductive blocks and magnetism isolating blocks which are longitudinally and alternately arranged; and the pole core plate comprises multiple bottom magnets and multiple side magnets which are located on at least one side of the bottom magnets. The planar permanent-magnetic working table is characterized in that the driving mechanism comprises a hydraulic cylinder; the longitudinal section of the shell is U-shaped; the side magnets are near to the vertical parts of the shell; either the bottom magnets or the side magnets can be drafted by the hydraulic cylinder to become variable magnets which can move longitudinally and horizontally; by adopting the above structure, with the same working area, the absorption force of the working table is much larger than that of a current permanent magnetic chuck; besides, the hydraulic cylinder is adopted by the driving mechanism, so that the whole structure is compact, and the operation is easy; and more bottom magnets can be designed according to requirements, so that the cost is lowered, and use requirements at different situations can be met.

The invention relates to a steel tube cutting machine and particularly relates to a cutting mechanism on a steel tube cutting machine. The technical scheme of the invention is as follows: the cutting mechanism of the steel tube cutting machine is characterized by comprising a bracket, a rotating disc, a feed control rotating disc and a blade cutting device, wherein a round through hole is formed in the bracket; the rotating disc is rotatably arranged on the round through hole of the bracket; a mounting round through hole is eccentrically formed in the rotating disc; a cutting through hole is formed in the eccentric position of the feed control rotating disc; a baffle block is arranged on the feed control rotating disc; a limiting block matched with the baffle block to limit rotation of the feed control rotating disc is arranged on the rotating disc; and after the feed control rotating disc rotates at a set angle, the baffle block leans against the limiting block to drive the rotating disc to rotate together. By adopting the technical scheme, the invention provides the novel cutting mechanism of the steel tube cutting machine, wherein the cutting mechanism conveniently machines and is convenient to adjust feed.

The invention discloses an unmanned aerial vehicle carried high-altitude cable foreign matter cleaning device which comprises a hanging bracket and clamping arms symmetrically arranged on the two sides of the hanging bracket, and an unmanned aerial vehicle is connected with a hanging ring through a connecting piece. U-shaped grooves are formed in the middle of the hanging bracket, and the clampingarms on the two sides are connected through torsional springs. A first clamping block is hinged to the lower end of the left clamping arm, and a second clamping block is hinged to the lower end of the right clamping arm; one end of the top plate is rotatably connected with the first through groove, a clamping groove is formed in the other end of the top plate, a clamping rod is arranged in the first through groove in the right side, and the clamping groove is clamped to the clamping rod when the clamping arms are unfolded. The device is hoisted and landed on the cable by using the unmanned aerial vehicle, one end of the top plate is separated from the clamping rod of the clamping arm under the action of the supporting force of the cable, the clamping arm is contracted under the action ofthe elastic force of the torsional spring, and the first clamping block and the second clamping block clamp and clean foreign matters on the cable, so that the labor intensity of operators is reduced,and the foreign matter cleaning efficiency is improved; and the cable is prevented from being damaged during foreign matter cleaning.

The invention provides an anti-skid and anti-rotation tubeless aviation wheel. A tire foot of a fixed rim of a tubeless tire comprises a wheel hub profile matching face and a fixed rim surface matching face, and a tire foot of a movable rim comprises a movable rim profile matching face and a movable rim surface matching face or smooth faces, or a plurality of anti-slip grooves are formed in the fixed rim and the movable rim. A plurality of annular anti-slip grooves are formed in the surface, matched with the tire foot of the tubeless tire, of the fixed rim of the wheel and the surface, matchedwith the tire foot of the tubeless tire, of the movable rim of the wheel. Two or three stop keys or stop pins are arranged between the matched surfaces of a wheel hub and the movable rim. According to the anti-skid and anti-rotation tubeless aviation wheel, the retention force at the junction of the tire and the wheel is improved through the anti-slip grooves, and sliding and rotation of the movable rim are prevented through the stop keys or the stop pins; and the anti-skid and anti-rotation tubeless aviation wheel is reasonable in structural design, easy and convenient to use, and feasible;and the problem that the tubeless tire can slide and rotate relative to the wheel under a large torque condition is effectively solved, and normal usage of the tubeless aviation wheel is ensured.

The invention provides a pneumatic rear clamping disc for a pipe cutting machine. The pneumatic rear clamping disc comprises a fixing base, a piston, an air cylinder, a fixing frame, a pushing block,a first clamping claw unit and a second clamping claw unit. The fixing frame is arranged on the top of the fixing base. An end plate is arranged on the top of the fixing frame. The piston is arrangedin the fixing base. The air cylinder is fixed in the piston. A pushing rod of the air cylinder penetrates through the fixing frame. The pushing block is arranged at the tail end of the pushing rod. The first clamping claw unit and the second clamping claw unit are symmetrically arranged on the end plate. The first clamping claw unit is connected with the piston. The second clamping claw unit is connected with the pushing block. According to the pneumatic rear clamping disc, the same air cylinder is adopted for driving the first clamping claw unit and the second clamping claw unit at the same time, the rear clamping disc is flexible in motion and easy to operate, meanwhile, by means of the simple mechanical structure and independent gas circuit design, the rear clamping disc is more compactin construction, clamping is more reliable, and the defects that due to the complex and large structure of the rear clamping disc, operation is troublesome, centering performance is poor, the rear clamping disc cannot penetrate through a cavity of a front clamping disc, and tail materials cannot be saved can be avoided.

A manufacturing method for an electric connector includes: forming an insulation body having an outside face, multiple terminal holes through the body designed close to the outside face, forming multiple conduction terminals having a hold part fixing the terminals on the body, in which, at least a recess is set on the hold part, plugging the said terminals into the insulation body and plugging the hold part into the terminal hole and punching the outside face which is corresponding to the hold part of the terminals so as to enable the insulation body to turn concaved to form a proud in the recess part.

The invention discloses a rotary drilling tooth of a rotary drilling machine. The rotary drilling tooth is provided with a mounting hole, a cemented carbide rod is composed of a root part and a working part, the root part of the cemented carbide rod is inserted into the mounting hole, and the mounting hole and the root part of the cemented carbide rod are assembled through thermal interference fit. Assembly connection can be completed without brazing, the rotary drilling tooth does not need to be subjected to high-temperature annealing at a copper melting point, and the hardness and wear resistance are not damaged by assembly; in cooperation with tight and non-weak areas, the increase of the holding force of the inner wall of the mounting hole to the outer wall of the root part of a rod body is facilitated, and the cemented carbide rod cannot fall off in a harsh working environment.

The invention discloses a nut locking and applying device which comprises a supporting platform. A pipe fitting feeding position is arranged at one end of the supporting platform; a nut feeding position is arranged at the other end of the supporting platform; a nut locking mechanism is arranged at the nut feeding position; a pipe joint clamping mechanism used for fixing a pipe fitting is arrangedon the supporting platform in a sliding mode and connected with a translation mechanism; the nut locking mechanism is provided with a locking piece; the translation mechanism drives the pipe joint clamping mechanism to be conveyed from the pipe fitting feeding position to the nut feeding position; and a nut is screwed on a pipe joint of a pipe fitting through the locking piece. According to the nut locking and applying device provided by the invention, the pipe joint clamping mechanism is arranged to clamp the pipe joint, and the clamping force of the pipe joint clamping mechanism is increasedthrough a special-shaped plug, so that the counter-acting force generated when torque is applied in a locking mode is met, and locking of the nut and the pipe joint is achieved.

The invention provides a roller which comprises a cylindrical body, two protruded portions, combining portions and bolts. An accommodating passage is arranged on the cylindrical body axially. The two protruded portions are protruded from two sides of the body axially, and a first flat plane of each protruded portion is provided with two blind holes. The combining portions are respectively provided with two through holes, and the protruded portions are combined with the combining portions to form a disc. The bolts extend into the through holes and are screwed with the blind holes. Since the roller is of a movably split structure, convenience in mounting and demounting the roller is improved, fixing force between the roller and a roller shaft is increased, and safety of a plastic rolling machine is improved.

An enhanced strength screw-type, self-tapping masonry anchor for fastening a fixture or other attachment to masonry in which a hole is drilled to receive the anchor. The anchor is provided with a shank having a root section surrounded by at least one helical male cutting thread whose crest diameter exceeds the diameter of the hole whereby when the anchor is screwed into the hole, the cutting thread then cuts a female thread in the bank of the hole to mechanically retain the anchor therein to impart to the anchor a holding power that resists axial pull-out forces. Formed on the root in the helical land between successive convolutions of the thread is a ridge that is raised above the root to define a compacting zone between the ridge and the bank of the hole. Particulate debris produced by the cutting action is discharged into the land and forced into the compacting zone to create a dense mass that wedges the anchor in the hole and thereby enhances the holding power of the anchor.

The invention discloses sensor. A sensing element on a circuit board is used for sensing the physical quantity of a measured position and converting the physical quantity into an electric signal, a connecting cable penetrates through a central opening of a pressing sleeve to be connected with the circuit board and is transmitted to a rear-stage acquisition instrument through an electric connector, and the circuit board and the pressing sleeve are both arranged in an inner cavity of a sensor shell. The first end of the circuit board is inserted into the bottom of the sensor shell, the pressing sleeve can be connected with the inner wall of the sensor shell in an attached mode through the outer surface of the installation part, the end, away from the installation part, of the fixing part abuts against the second end of the circuit board, the circuit board can be axially pressed, and the outer diameter of the fixing part is smaller than that of the installation part, that is, a gap is reserved between the outer surface of the fixing part and the inner wall of the sensor shell, and when pouring sealant is poured into the inner cavity of the sensor shell, the filling area of the pouring sealant can be increased, so that the holding force between the pressing sleeve and the inner wall of the sensor shell is increased, the fixing effect of the circuit board is improved, and the signal monitoring sensitivity of the sensor is ensured.