178results about How to "Easy to reciprocate" patented technology

A bone resection tool for resecting an end of a bone along a surface having a curvature comprises a guide, a cutting tool and a track follower. The guide is configured to be removably attached in a fixed position to the end of the bone. The guide is configured to include a track exhibiting a curvature generally corresponding to the curvature of the surface to be resected in the bone. The cutting tool includes a cutting face. The track follower is configured to couple to the cutting tool and cooperate with the track to facilitate reciprocation of the cutting tool relative to the guide to induce the cutting face to resect the bone along the surface having the curvature. A method for cutting a bone along a curved surface conforming to the curvature of a curved surface of the underside of a prosthetic component comprises the steps of incising the tissue surrounding the surface of the bone, positioning a guide alongside the surface of a bone to be cut, affixing the guide to the bone, interconnecting a cutter having a cutting face with the guide, maintaining the cutting face generally parallel to the tangent of the curved surface and traversing the cutting face along the bone while guiding the cutter along the track. The tissue incision incises the tissue surrounding the surface of the bone to be cut in a minimally invasive fashion. The positioned guide includes a track configured to assimilate the curvature of the curved surface of the underside of the prosthetic component.

A chair massager comprises a base, a back support to place a user's back and neck thereon when the user is seated in the base. The back support has a cover, first and second ends with the first end fixed to the base. A rider makes a lengthwise reciprocal movement between the first and second ends of the back support, and a lifter liftedly engaged to the rider makes a forward reciprocal movement perpendicular to the lengthwise reciprocal movement. Massage bumps veiled by the cover and attached atop the lifter massage along the user's back and neck by the relative movements of the rider and lifter.

A vibrator for cellular telephones and the like uses components of a camera. Thus, the need for a dedicated vibrator, and the cost associated therewith, are mitigated. A component of the camera can be moved so as to provide vibration. For example, a lens of the camera can be move back and forth rapidly by an actuator. The vibration can be used to indicate that the phone is ringing, for example.

An oscillating-foil type underwater propulsor with a joint provided in the invention, the propulsor including a streamline foil having a foil surface being parallel to a water surface and a span length of at least twice as long as an average chord length of the streamline foil, and a heaving mechanism undergoing heaving motion perpendicular to a propulsion direction of the propulsor and having a transmission section, wherein the transmission section is pivotally connected to the streamline foil to form a joint, the joint being provided at the middle of the span length and having a rotation center located within a circular area, which has a radius of one third of the average chord length and is centered at the point one third of the average chord length ahead of the lifting center of the streamline foil.

A plurality of similarly configured weight plates each with a planar face having a horizontal coupling aperture and a numerical value form a weight stack. A front cover, with a generally rectangular cutout in a central section exposing all of the numerical values and coupling apertures, and a rear cover form a cover assembly.

The invention discloses a photovoltaic power generation device, which includes a bottom base, a support base and a mounting plate. The support base is fixedly arranged on the top of the bottom base. A rotary base is installed at the center of the top of the support base. A driving motor is mounted on the top of the rotary base. A support rod is fixedly arranged on a rotary base at one side of the driving motor, and an electric lifting support rod is fixedly arranged on the rotary base at the other side of the driving motor, and the support rod and one end of the electric lifting support rod far away from the rotary base are fixedly connected with the bottom of the mounting plate arranged above the rotary base. One end of the mounting plate is fixedly provided with a rainwater collecting tank, and the other end of the mounting plate is equipped with a recovery funnel. In the invention, rain water is collected by the rainwater collecting groove arranged on one side of the mounting plate and is transported to a water storage tank through a delivery pipe where the rain water is stored to provide cooling water resources for a cooling mechanism. The device of the invention is convenient to use, environment-friendly and pollution-free.

The thermal treatment apparatus is equipped with a laser generator for supplying laser beams, a laser irradiation unit for applying the supplied laser beams to tissues, and a control unit for totally controlling various parts of the system. The laser irradiation unit is equipped with a movable laser emission part for emitting laser beams to tissues, a motor for reciprocating a laser emission part, and a guide lumen for supporting an endoscope in such a way as to enable it to move in the direction of the laser emission part. The control unit controls the motor that drives the laser emission part to make reciprocation motion in such a way that the laser emission part stops at a position where it does not interfere with the moving passage of the endoscope.

The invention discloses an oscillation control method for a micromechanical resonator and the micromechanical resonator. The micromechanical resonator comprises a substrate, and an oscillation structure and a driving structure which are arranged on the substrate. The driving structure is used for driving the oscillation structure of the micromechanical resonator to move in a reciprocating way, generating facilitating electrostatic force which is applied to the oscillation structure and facilitates reciprocating movement of the oscillation structure when the oscillation structure moves in the reciprocating way, and generating restricting electrostatic force which is applied to the oscillation structure and restricts reciprocating movement of the oscillation structure so that frequency deviation generated by the softening effect of an electrostatic spring and frequency deviation generated by the hardening effect of the electrostatic spring in reciprocating movement of the oscillation structure can be mutually cancelled, and thus the micromechanical resonator is controlled to work at the inherent frequency and work stability of the micromechanical resonator is enhanced.

The invention discloses a medicine infusion device having multiple infusion modes. The medicine infusion device comprises a medicine storage unit, a piston, a screw rod, a driving module, a power module and a control module; the piston is arranged in the medicine storage unit; the piston is connected with the screw rod; the driving module at least comprises a first driving unit and a second driving unit, which are matched with each other to operate; the second driving unit drives the screw rod to advance; the power module is connected with the first driving unit; the control module is connected with the power module; and the control module controls the power module to apply different acting forces to the first driving unit, so that the first driving unit has multiple different operation modes, and the infusion device has multiple different unit infusion amounts or infusion rates. A user can select different infusion modes to infuse medicines, so that the user experience is enhanced.

The invention discloses a swing type wave energy power generation buoy. The swing type wave energy power generation buoy comprises a first power generation mechanism and a second power generation mechanism, wherein the second power generation mechanism is arranged on the top of the first power generation mechanism; the first power generation mechanism is composed of a suspension box, a swinging sliding groove, a swinging sliding block, a stirring plate, a connecting block, a swinging shaft, a reset spring, a supporting column, a first rotating shaft, a swinging wheel, a sliding block, a pushing rod, a pushing sliding groove, a transmission box, a gearbox and the like. According to the buoy, the stirring plate and the transmission box are arranged, so that under the impact action of the seawater, the stirring plate can be conveniently pushed to do reciprocating motion, and the wave energy can be used for driving the swinging wheel to rotate; the input rotating speed is increased throughthe transmission mechanism of the transmission box, and the working efficiency of the generator is improved; and a solar tracker and a control panel are arranged, so that the solar panel can always face the sun position, and therefore, the conversion rate of solar energy is improved, the power generation efficiency is improved, and the practicability of the buoy is improved.

The invention discloses powdery pharmaceutical mechanical equipment. The equipment comprises a base, a buffer groove is formed in the top of the base, a stirring box is arranged in the buffer groove in a sliding mode, sliding holes are formed in the two sides of the stirring box respectively, the two sliding holes are internally provided with the same sliding plate in a sliding mode, and the two sides of the sliding plate extend to the outer side of the stirring box; and a mounting hole located in the stirring box is fixedly arranged on the sliding plate, a screening box with an opening at thetop and an opening at the bottom is fixedly arranged in the mounting hole, a screening plate is fixedly arranged in the screening box, rotating holes are formed in the two sides of the stirring box respectively, the two rotating holes are located below the two sliding holes, the same stirring rod is rotationally arranged in the two rotating holes, and the two ends of the stirring rod extend to the outer side of the stirring box. According to the equipment, powder materials can be screened conveniently, thus the powder materials can be more uniform; and meanwhile, continuous reciprocating motion up and down of the screen plate can be facilitated, thus the material screening speed is increased, damping to the stirring box can also be facilitated; and the equipment is simple in structure, and convenient to use.

The invention relates to a gas drilling shaft bottom near-bit continuous impact focus nipple, comprising a nipple body, a cylinder body, a piston (3) and a gas distribution device, wherein the cylinder body is arranged in a shell (1), the piston (3) is arranged in the cylinder body, a lower gas inlet passage (8) is formed between the cylinder body and the shell (1), a lower gas chamber (2) is formed between the lower end of the piston (3) and the inner wall of the shell (1), the lower gas inlet passage (8) is communicated with the lower gas chamber (2), an upper gas inlet passage (9) is formed at the bottom (7) of the cylinder body, an upper gas chamber (6) is formed between the upper end of the piston (3) and the cylinder body, the upper gas inlet passage (9) is communicated with the upper gas chamber (6), and the gas distribution device is arranged at the upper part of the cylinder body. According to the focus nipple, a focus in seismic exploration is applied to a shaft bottom near a bit, a focus linear (Chirp) scanning technology can be combined with a Mini-SOSIE technology, and the focus excites the ground to generate linear scanning pulse signals through a pulse coding technology, so that the excitation quality of seismic wave is improved.

The invention relates to the technical field of grinding equipment, in particular to a hardware plate double-face grinding device based on a clamping turnover mechanism. The device comprises a clamping turnover structure, wherein the clamping turnover structure comprises a working bin; a middle frame is hinged to the upper end of the working bin; a clamping turnover plate is installed in the working bin; clamping frames are installed at the side ends of clamping plates; clamping lead screws are arranged in clamping frames; the clamping lead screws are in threaded connection with the clamping frames; clamping motors are arranged at one side ends of the clamping lead screws correspondingly; the clamping motors are located on the outer side of the working bin; the bottoms of the side ends, opposite to the clamping plates, of the clamping motors are movably connected through connecting rods; and rotating rods are symmetrically arranged on the surfaces of the side ends of the clamping plates. By means of the clamping turnover structure, the clamping turnover structure can enable a hardware plate to be clamped in multiple sizes, overturning is conducted after one side of the hardware plate is ground, the other side of the hardware plate can be synchronously ground, and the grinding efficiency is improved.

The present invention provides a barcode reader, which irradiates a scanned laser beam onto a barcode symbol and reads the information written in the symbol, wherein a laser beam scanning unit is made by insertion molding as one body with a movable support member, a support member fixed to the main body, and a metallic elastic member connecting these support members, the support members are molded as one body with a scanning mirror, and a permanent magnet is fixed to the support members. A driving coil is provided in proximity to the permanent magnet, and generates an attractive force or a repulsive force to rotate the magnet at a periodic laser beam scanning angle. Further, a stopper mechanism is provided to soften an external impact to the rotation of the scanning mirror.

The invention discloses an MBBR slow release carbon filler and a preparation method thereof. The product provided by the invention has the advantages of fast biofilm formation speed, strong biologicaladhesion, difficult falling and high treatment efficiency, and is especially used for treatment of domestic sewage and industrial wastewater with high BOD5 content. The biological filler provided bythe invention has strong hydrophilicity and biological affinity, and the filler itself contains a slow-release carbon source, can provide the carbon source needed for biological metabolism, and the porous walnut sand material is beneficial to microbial growth, shortening of the biofilm formation time and improvement of the microbial treatment efficiency. With an ammonia nitrogen removal rate of greater than 92% and COD removal efficiency all exceeding 83%, compared with the existing filler, the MBBR slow release carbon filler provided by the invention can better treat biodegradable sewage.

The invention discloses machining equipment used for producing special-shaped ornaments and having automatic drilling and polishing functions. The equipment comprises a bottom case. A first servo motor is installed above the left of an inner cavity of the bottom case. A center shaft is arranged at the centering position of a center line of a rotary clamping base vertically in a transverse penetrating manner. Flow guide grooves are connected above plane overlooking pushing plates of the bottom case. Gap conveying mechanisms are arranged on the middle portions of the flow guide grooves. Slidingcases are symmetrically installed on the rotary clamping base. Controllers are arranged on the bottoms of the sliding cases. Sliding rods are symmetrically arranged on the two sides of the interiors of the controllers. According to the equipment, the gap conveying mechanisms are arranged in the flow guide grooves, the pushing plates on conveying plates of the gap conveying mechanisms are arrangedat equal distance, the ornaments can be moved horizontally and conveniently one by one, meanwhile, by arranging the pushing plates and the rotary clamping base, the ornaments can be conveniently pushed to the rotary clamping base to be rotated to the inner sides of the sliding cases, errors caused by manual feeding and discharging are avoided, and the ornaments are positioned beneficially.

The invention discloses self-oxygenation microorganism degradation filler and a preparation method thereof. A product disclosed by the invention has a rapid film formation speed, strong biological adhesiveness, uneasiness of falling off and high treatment efficiency and is especially used for treating domestic sewage and industrial wastewater with relatively high BOD5 (Biochemical Oxygen Demand 5)content; the product disclosed by the invention has extremely strong hydrophilicity and biocompatibility; the filler contains an oxygen-carrying material and surface tension between air bubbles and awater surface can be reduced; oxygen can be dissolved into sewage and the growth of microorganisms is facilitated; the film formation time is shortened and the microorganism treatment efficiency is improved. The ammonia nitrogen removal rate is higher than 90 percent and the removal efficiency of COD (Chemical Oxygen Demand) exceeds 80 percent; compared with existing filler, the sewage with relatively high BOD5 content can be treated better.