15results about How to "Increase static friction" patented technology

This application relates to the field of fitness equipment technology, and provides a flexible, foldable rowing machine, comprising a rowing machine body, a modular track, and a seat. One end of the modular track is rotatably connected to the rowing machine body. The modular track consists of several track joints, and the joints are connected by bearings or universal joints, allowing adjacent track joints to bend relative to each other. The surface of the modular track has two parallel arc-shaped grooves. The bottom of the seat is rotatably connected to several rollers, each roller slidingly connected within one of the arc-shaped grooves. This application provides the advantage of convenient folding of the track.

The utility model discloses a caterpillar type crane counterweight beam, including rear counterweight tray and counterweight block group, is equipped with the placement platform of putting groove on the rear counterweight tray, and the counterweight block group that puts by the multiple counterweight block body stack is placed in the putting groove, and the bottom surface of counterweight block body is equipped with the gyro wheel convenient for transfer, and the top surface is equipped with the lifting ring for hoisting, and the nesting of wheel table and jack B, jack C, lifting ring and jack A realizes quick vertical alignment when stacking, and counterweight block body sets up the structure of embedding recess and convex part. This design improves the handling efficiency, hoisting accuracy and stacking stability of counterweight block body through modular nesting structure and multiple antiskid measures, effectively reduces the adjustment time and prevents the deviation caused by vibration.

The utility model discloses a multifunctional medical kit for health management relates to medical tool technical field, including box and hinge, hinge fixed connection in the both sides of one end surface of box, hinge other end fixedly connected with the box door, the lower portion of box is provided with protection subassembly, the upper surface of box is provided with unfolding subassembly, and the inside of box is provided with accomodation subassembly. The utility model discloses, through setting protection subassembly, protection setting is below the box, sets up a plurality of self -locking universal wheel at the base bottom, facilitates to push the box and moves and uses, need not long -time hand to carry and moves and uses, improves the use convenience, and in the process of moving, protection subassembly can buffer the vibration, avoid the tool of placing in the box interior and produce displacement collision and be damaged, through setting accomodation subassembly, the placement accomodation space required to the tool of different sizes is adjusted flexibly, and the rubber pad of fixed mounting in the bottom surface in the placing groove can increase the static friction after tool placement, avoid the tool movement.

This utility model discloses an amorphous alloy three-dimensional wound core transformer, including an oil tank and a transformer body. A first sound-absorbing component is fixed on the inner wall of the oil tank. The transformer body includes a vibration damping mechanism, a clamping frame mechanism fixed on top of the vibration damping mechanism, a second sound-absorbing component fixed on the outer surface of the clamping frame mechanism, an amorphous alloy three-dimensional wound core mounted on the clamping frame mechanism via a pad mechanism, and coil windings wound on the amorphous alloy three-dimensional wound core. This utility model uses a structure in which the clamping frame mechanism and the pad mechanism cooperate to fix the position of the amorphous alloy three-dimensional wound core and the coil windings. The fixing method is stable, and the amorphous alloy three-dimensional wound core is suspended as a whole, avoiding direct transmission of vibration energy to the oil tank, which can reduce noise. Furthermore, this utility model also includes a vibration damping mechanism, a first sound-absorbing component, and a second sound-absorbing component, which can further reduce noise. This utility model is suitable for use as basic equipment for power transmission and distribution.

This utility model relates to the field of stacking device technology and discloses an anti-fog film stacking device, including a stacking frame, a pallet frame, and a bidirectional lead screw assembly. Several pallet frames are arrayed inside the stacking frame. Several slots are opened through the top of the pallet frame. A protective pad is provided on the top of the pallet frame. The protective pad is fitted and fixedly connected to the pallet frame and the slots. A set of side slots are opened through the outer sides of the pallet frame. In this utility model, the rolled anti-fog film tube is placed on the top of the pallet frame. The slots fit the curvature of the anti-fog film tube to position it. The protective pad on the top of the slot is made of silicone to increase the static friction between the film and the pallet, providing good anti-slip properties and preventing the film tube from sliding and shifting during transportation or stacking. The dual-axis motor is started, and the bidirectional lead screw is rotated synchronously by the dual-axis motor, driving the two side slides to move symmetrically laterally along the pallet frame.

This invention discloses a pneumatically protected electric chuck structure, comprising a fixed end and a rotating unit. The rotating unit includes a rotating base, an inner ring chamber, and an outer disk. The inner ring chamber is fixed to the rotating base and the outer disk on both sides, respectively. An electric power source assembly is installed in the fixed end, driving the rotating base to rotate on one side of the fixed end. A pneumatic control mechanism is fixed in the fixed end. An actuator is slidably installed in the inner ring chamber, comprising an actuator body and three sets of sliding blocks. The pneumatic control mechanism drives the actuator body to move laterally within the inner ring chamber. The actuator body, through the three sets of sliding blocks, drives three sets of jaw arms to move centered on the front side of the outer disk to clamp materials. This invention effectively utilizes pneumatic protection to improve the safety of electric chuck operation, significantly increases the upper limit of electric chuck rotation speed, and assists in achieving pneumatic emergency stop, effectively protecting the use of the electric power source.

The application relates to the technical field of mechanical precision detection, in particular to a rotating detection table for cross-roller bearing measurement, which comprises a shell, a fixed shaft fixedly connected to the bottom end of the shell, a V-shaped frame movably connected to the fixed shaft, a pull rod rotatably connected to the V-shaped frame, a supporting beam movably connected to the pull rod, a limiting plate fixedly connected to the upper end of the shell, a toothed plate slidably connected to the limiting plate, the toothed plate being fixedly connected to the supporting beam, a servo motor A fixedly connected to the upper end of the shell, the output end of the servo motor A being driven by a gear set to drive the toothed plate, a sliding rail fixedly connected to the bottom end of the shell, a servo motor B slidably connected to the sliding rail, a belt cylinder rotating shaft fixedly connected to the output end of the servo motor B, a friction belt fixedly connected to the belt cylinder, and a clasp fixedly connected to the friction belt. The V-shaped frame and the friction belt are used to prevent the outer ring from rotating circumferentially and moving eccentrically while ensuring the universality of the cross-roller bearing measurement, improve the rotating detection precision, and increase the height positioning function of the bearing axis.

The application belongs to the technical field of electrical components, and particularly relates to a fuse, which comprises a body, a cavity arranged in the body, a fuse core arranged in the cavity, an insulating shell, an arc extinguishing medium and a fuse body, the fuse body is encapsulated in the insulating shell, the arc extinguishing medium is filled in the insulating shell and wraps the fuse body, the fuse core is respectively provided with a main contact at two ends, the cavity is provided with a facing anti-deviation unit, the facing anti-deviation unit comprises a rotating shaft installed in the cavity and a winding roller installed on the rotating shaft, the winding roller is connected with a cable, the body is provided with a handle dismounting device, the handle dismounting device comprises a retaining guide block installed in the cavity, the retaining guide block is located at the top end of the fuse core, and a retaining guide cylinder is connected to one side of the retaining guide block close to the fuse core, so that a novice can conveniently replace the fuse body, the practical application limitation of the fuse is reduced, and the use effect is improved.

The utility model discloses a kind of electric connectors, it is related to connector technical field, wherein, electric connector includes: male end, including first shell;Female end, including second shell;And first electric connection component, including spring and tubular conductor, one of spring and tubular conductor is located in the inside of first shell, the other is located in the inside of second shell;Wherein, first shell is inserted into second shell, so that spring and tubular conductor abutment realizes electric connection, and spring produces radial force applied to tubular conductor along tubular conductor.The technical scheme provided by the utility model provides a kind of electric connector, and male end and female end are closely connected, not easy to loosen.

This utility model discloses a dental floss pick, including a handle for the user to hold; a floss holder disposed at one end of the handle, with two relatively spaced support arms at the end of the floss holder away from the handle; dental floss fixed between the two support arms; and the dental floss including two first segments placed within the two support arms and a second segment connected between the two support arms; the first segments have a non-linear orientation within the support arms, while the second segment has a linear orientation. The non-linear orientation of the first segment in this utility model increases the contact area and friction between the dental floss and the support arms, improving the stability of the dental floss and preventing it from loosening during use.

The utility model provides a kind of stable ground gripping type concrete pipe pile, the stable ground gripping type concrete pipe pile includes pipe pile body, by C50 and above strength grade concrete pouring, outer diameter is 0.8-1.5 meters, wall thickness is 100-250 millimeters;Ground gripping part, set in the bottom end of pipe pile body, the ground gripping part is conical tip, tip surface is equipped with helical groove, groove depth is 10-30 millimeters, pitch is 50-150 millimeters;Longitudinal main reinforcement, along the circumferential uniform distribution of pipe pile body inner wall, the longitudinal main reinforcement is HRB400 grade reinforcing bar, diameter 20-32 millimeters, interval is 80-150 millimeters;Outer wall ground gripping texture, along pipe pile body outer surface axial distribution, the texture is trapezoidal projection, height is 5-15 millimeters, width is 20-50 millimeters, adjacent projection interval is 30-80 millimeters. By optimizing bottom ground gripping structure, outer wall texture design and internal strengthening scheme, the penetration efficiency of pipe pile, displacement resistance and connection reliability are significantly improved.

The utility model discloses a hospital transfer flat car bed pad antiskid device, aims at solving the problem of easy sliding of transfer flat car bed pad, poor effect of antiskid device and the like, the device is composed of multiple PVC antiskid strips, the middle part of its upper end face is provided with protruding structure in parallel progressive sawtooth shape, the lower end face is provided with adhesive layer as a whole, multiple PVC antiskid strips are horizontally and interval pasted and arranged in the upper middle part of hospital transfer flat car bed plate, which adopts environment-friendly PVC material, and does not have formaldehyde and other irritating harmful gas, and meets the safety and environmental protection requirements of hospital. The antiskid strip has excellent performance, can keep excellent tackiness in the temperature range of -30 DEG C to 200 DEG C, also has fireproof and flame-retardant performance, and can adapt to the complex environment of hospital. Meanwhile, after the installation of PVC antiskid strip, the effect of steady stopping and smooth moving is achieved, through the control of static friction and kinetic friction, the antiskid property in static state and the smoothness in translation are realized, the demand in emergency department scene is met, and the utility model has higher practical value.

This invention belongs to the field of glass edging technology, specifically referring to an edging processing device for glass edge treatment. It includes a grinding replacement mechanism, a position sensing component, a tool adjustment component, a belt adjustment component, a belt feeding component, a water tank lifting component, and a leaning support. The grinding replacement mechanism includes a cutter head assembly, a self-locking drive component, and a self-locking grinding head assembly. The cutter head assembly is mounted on the self-locking drive component, and the self-locking grinding head assembly is mounted on the cutter head assembly. This invention achieves cyclic selection of the grinding wheel through the shape matching of the butterfly output head and the butterfly groove. To overcome the technical contradiction that the rotational resistance of the grinding shaft cannot be too large or too small, this solution proposes a rubber ring with fins. A slight reverse rotation when the grinding shaft disengages from the butterfly output head causes the fins to deform and accumulate elastic force, thereby maintaining the position of the grinding shaft in a non-selected state.

The application discloses a hydrostatic guide rail and a turning center. The turning center comprises the hydrostatic guide rail, which comprises a guide rail, a sliding block, a bearing table and an oil supply mechanism. The sliding block is slidably arranged on the guide rail. An upper hydrostatic cavity is arranged between the top of the sliding block and the guide rail. A lower hydrostatic cavity is arranged between the bottom of the sliding block and the guide rail. A side hydrostatic cavity is arranged between the sliding block and the guide rail. The bearing table is fixed to the top of the sliding block. The bearing table is provided with a first oil supply channel and a second oil supply channel which are independent of each other. The first oil supply channel is in communication with the upper hydrostatic cavity. The second oil supply channel is in communication with the lower hydrostatic cavity. The oil supply mechanism is in communication with the first oil supply channel and the second oil supply channel. The hydrostatic guide rail and the turning center solve the problem of high cost of the hydrostatic guide rail brake in the prior art.

This invention discloses a device for fixing and trimming autologous bone grafts for dental implants, belonging to the field of dental medical device technology. The device includes a first clamping arm and a second clamping arm; the first and second clamping arms are hinged together by fasteners to form a scissor-like lever structure; the first clamping arm includes a first gripping part and a first clamping section, the first clamping section being connected to a positioning frame; the second clamping arm includes a second gripping part and a second clamping section; the second clamping section is connected to a movable pressure plate; the positioning frame and the movable pressure plate are arranged opposite to each other and together enclose a bone placement cavity for accommodating and fixing the autologous bone graft. This invention adopts an integrated design, integrating four core functions—stable clamping, anti-slip fixation, precise cutting guidance, and pre-positioning of bone screw holes—into a single handheld instrument, achieving a "one-stop" precise, efficient, and stable preparation from bone graft to ready-to-use bone graft.