235results about How to "Simple and durable structure" patented technology

A disposed system for medical waste, and particularly sharp ended waste, includes a sharps receptacle and a companion needle holder. The needle holder has an actuation mechanism capable of detachably mounting an externally threaded hub of a needle assembly to the holder. The sharps receptacle has a top with an automatic release structure disposed thereon for engagement with the actuation mechanism of the needle holder. The automatic release structure cooperates with the actuation mechanism of the needle holder to automatically detach a mounted needle assembly from the holder into the sharps receptacle in response to placement of the holder into the automatic release structure.

An ion-beam source comprising: a plasma-generation unit for generating plasma and an ion-extraction unit for extraction and acceleration of ions from the aforementioned plasma, where the ion-extraction unit is made in the form of at least one grid under a negative potential. The plasma generating unit consists of a working chamber having a deeply immersed antenna cell. The cell contains a ferromagnetic core, a heat conductor with a heat sink, at least one inductive coil wound onto the ferromagnetic core, and a cap made from a dielectric material that sealingly covers the ferromagnetic core and the inductive coil.

An accessory mounting receiver for trailer hitches is provided which includes a trailer hitch insert tube having lateral side walls. The side walls include cooperating aligned apertures for pinned connection to a trailer hitch receiver. An accessory mounting bar has proximal and a distal ends. An accessory receiver box is connected to the distal end of the mounting bar. The accessory receiver box has four side walls. At least two of the side walls each have cooperating diametrically opposed apertures for pinned connection to an accessory insert tube. A collar plate is connected to the proximal end of the mounting bar. The plate is slidably clearance fit for horizontal and vertical rotation of the accessory receiver about the trailer hitch insert tube.

A densimeter contains an inlet pipe section, a second pipe section joined to the downstream end of the inlet pipe section, and an outlet pipe section joined to the downstream end of the second pipe section. The inlet and outlet pipe sections are constrained by a support structure, while flexible couplings allow the second section of pipe to undergo a limited amount of radial motion relative to the adjacent pipe sections. The weight of the second pipe section is supported by a weight measuring unit, which continuously measures the weight of the second pipe section as fluid flows through the densimeter. One preferred embodiment of the invention uses the densimeter to measure the density of a proppant in a blender system for preparing fluid mixtures for fracturing and propping oil bearing geological formations.

A system that will result in less physical effort in the lowering or raising of a marine folding tower, spotting station, driving station, fishing tower, or tuna tower. The system will be installed on a fishing boat, pleasure boat, or other marine vessel. The system comprises at least one gas spring, or hydraulic or electric ram or shock absorber of any size or style that attaches to both the upper frame assembly and lower frame assembly of the tower or other station.

A large-size axial eddy current damper manufactured by use of screw drive comprises a drive assembly and an eddy current damping generator; the drive assembly comprises a screw drive pair, and a stator and a rotor respectively made of magnetic conductive materials; the screw drive pair comprises a screw rod and a nut sleeved on the screw rod; the screw rod sequentially penetrates through central holes of upper and lower flanges of the stator; the nut is within the stator; the rotor comprises an outer rotor and an inner rotor having the bottom provided with a lower connecting flange; one or more eddy current damping generators are arranged between the stator and the outer rotor. Problems of having difficulty in manufacturing axial dampers with a large damping coefficient and simulating anti-vibration dampers with a speed index of less than 1, by use of eddy current damping, can be solved simultaneously.

The invention discloses a double-layer circular-tube type axial-force eddy current damper, which consists of an eddy current damping system, a guiding system and a connecting system, wherein the eddy current damping system is composed of a circular magnet and a double-layer circular tube, the double-layer circular tube comprises an outer circular tube made of strong magnetic-conducting material and an inner circular tube made of strong electricity-conducting magnetic-isolating material through nesting; the guiding system consists of a guiding ring, an inner guiding shaft and a hollow round support column, has inner-layer and outer-layer guiding functions, and also can have one guiding function according to the condition; and the connecting system is composed of a connecting block at the upper end of the double-layer circular tube and a support base at the lower end of the circular magnet. With the adoption of the specific double-layer circular tube design, the damper is only provided with one group of circular magnets on the inner side of an electric conductor tube, all magnetic-force lines can vertically cut the circular tube in the electric conductor and cannot be distributed outside the double-layer circular tube, and achieves the purposes of improving the eddy current efficiency and shielding the magnetic field outwards.

The invention discloses a multi-dimensional adjustable test mounting rack, which is used for mounting a test sample of an automobile part. The multi-dimensional adjustable testing mounting rack includes a base extending along the horizontal direction, a vertical plate extending along the vertical direction, a vertical sliding block and a test sample mounting disc, wherein the vertical plate is arranged on the base and can slide horizontally along the base; the vertical sliding block is arranged on the vertical plate and can slide vertically along the vertical plate; and further, the test sample mounting disc is used for mounting the test sample of the part, is arranged on the vertical sliding block and can rotate in the vertical plane relative to the vertical sliding block. Through the ingenious design, the multi-dimensional adjustable test mounting rack realizes adjustment in horizontal, vertical and rotational movements through the least components, has simple structure and low cost, is highly durable, and is easy to manufacture. And moreover, the multi-dimensional adjustable test mounting rack disclosed by the invention is flexible to mount and convenient to operate, and can be suitable for test installation of various automobile components.

A multifunctional electric-powered infant car with cradle function comprises a car body (1) and a cradle unit (2). The cradle unit (2) is mounted on the car body (1) such that the cradle unit (2) can be moved back and forth. The cradle unit (2) has a supporting frame (21) vertically mounted to the car body (1) and an inclination-adjustable back part (23) for allowing an infant to be laid on the cradle unit (2). The carbody (1) comprises driving unit (13) mounted to the (11) a one-way rotating force generated from a driving motor (131) to driving wheels (133) via a driving force transmitting part (132), and a cradle driving unit (14) to receive the driving force generated from the driving motor (131) of the car body driving unit (13) for moving the cradle unit (2) back and forth.

The invention relates to a spiral feeder, which comprises a motor, a decelerator, a motor frame, a liquor drainage valve, a spiral feeding shaft, spiral blades, a material channel and a shell and is characterized in that the motor is connected with the decelerator and the spiral feeding shaft in sequence, and the spiral feeding shaft is arranged in the material channel and the shell and is provided with the spiral blades along the axial line, and the upper part of the material channel and the lower end of the external shell is provided with a material inlet while the lower part is provided with the liquor drainage valve and a gas outlet, and the middle section of the material channel and the shell is provided with viewing ports while the upper end is provided with a gas inlet and a material outlet and the lower part is provided with the material inlet, and the motor frame is arranged under the material inlet and is provided with the motor and the decelerator. The spiral feeder with functions of speed controlling and preheating is characterized by small volume, high efficiency, good sealing, safe and convenient operation and low cost, and can be widely applied in the lifting and delivering work of materials.

The invention provides a picture frame with pictures easy to replace. The picture frame is applied to a lamp box, an advertising board, a frame, a photo frame and the like with the pictures needing to be replaced. A spring, an elastic piece, a single spraying structure and a matching side frame structure are arranged in the picture frame in a hidden mode, and therefore the picture frame and the pictures can be clamped and loosened through the elastic force. The pictures can be clamped or loosened by pressing or loosening the pictures from the outside of the picture frame, and can be replaced. Any structural member and screw can not be seen from the outside of the picture frame. The picture frame is simple and durable in structure, low in manufacturing cost and beneficial for secondary appearance design. The internal structure is simple. When the picture frame is applied to the lamp box, shadows can not be caused as the picture frame does not shield the portion between a light source of the lamp box and the pictures. Moreover, the traditional picture replacing mode which is tedious and damages the appearance can be replaced, and the picture frame is easy to use.

The invention relates to the technical field of articles for daily use, in particular to a hand-pulling type travel suitcase, which is provided with a plurality of stairs-climbing mechanisms with sliding wheels; the stairs-climbing mechanisms are matched with landing wheels; each stairs-climbing mechanism comprises a sliding wheel part and a concave seat part with fixed protective covers; the sliding wheel part is provided with a wheel-arranging box; and the box surface of the convex seat part is provided with fixed protective covers for wrapping part of box corners or angle edges. The hand-pulling type travel suitcase not only can travel on flat ground, but also can travel smoothly in the environments with rugged ground of stairs, steps, slopes and the like, has simple and durable structure, beautiful appearance and convenient assembly, also can have the function of reducing vibration, and can be adjusted according to the conditions of ground environment so as to lead a user to drag the travel suitcase more relaxedly with less effort.

This disclosure relates generally to a safety match box and comprises a cover member of a generally box-like configuration which has a slidable tray having a pack of matches fastened thereto which fits within the cover member. The general object of this invention is the provision of a very simple device which is adapted to hold a box of matches, a shelf, and lock the box thereto permitting the box to be opened and the matches removed whenever desired. This invention is to provide a child-proof safety match box wherein the tray cannot be completely withdrawn from the cover and particular manipulative steps must be taken in order to open the container.

The Designated Hitter Pitching Training System (DH) is a silhouette figure of a batter that stands in the batter's box during bullpen sessions for baseball and fastpitch softball pitchers of all ages and skill levels. Constructed of durable polyethylene, the DH comes in three sizes: the Pro (6′2″), Varsity (5′8″) and Youth (5′2″). The DH provides a more realistic, game-like way for pitchers to practice and will improve a pitcher's ability to more consistently throw their pitches in the strike zone, as well as pitch more accurately and confidently to the inside part of the plate with the Inside Pitch Target. All of this will combine to improve game performance. The DH can also be used by pitchers and catchers as part of their practice activities such as throwing to bases, bunt defense, pitchouts, and intentional walks.

The invention provides an air purifier and solves the problem of reduced purifying efficiency due to long-term use and the problem about air disinfection in the technical field of air purification. The air purifier is characterized in that the structure is simple, the air purifying efficiency cannot be affected after long-term use and various bacteria in air can be killed by adding a disinfecting solution, a switch (B) in an attached drawing 4 and a blast volume controller are rotated to the position 1 or 2 and rotated to send signals to a circuit board (H), a turbo-blower (D) and a water pump (K) are started simultaneously for operation by the circuit board (H), the water pump (K) conveys water to a sprinkler head (J), and water is sprayed to outside of a diversion trench. The turbo-blower (D) exhausts air in a box to an air outlet (A). Specifically, the air flows into an air diversion trench (F) from an air inlet fly net (G) in an attached drawing 2, is cleaned by the sprinkler head (J), flows through a water spray blocking net (E) in an attached drawing 3, enters a turbo-blower air inlet (C) and is exhausted from the air outlet (A).

The invention discloses an infrared thermal imaging instrument capable of implementing a presetting function based on a stepping motor. The infrared thermal imaging instrument comprises an imaging zooming lens group, an imaging focusing lens group, a thermal imaging detector assembly and a control circuit board, and is characterized in that the control circuit board respectively drives the imaging zooming lens group and the imaging focusing lens group to work through a zooming stepping motor assembly and a focusing stepping motor assembly. A method comprises the following steps of: mounting the thermal imaging instrument; initializing the thermal imaging instrument; manually zooming and focusing; reading zooming and focusing information; and storing the information. A preset position calling method comprises the steps of judging a scene to be monitored, calling the information, adjusting the thermal imaging instrument, and acquiring a clear image. By the infrared thermal imaging instrument and method, the clear image is acquired at first time, and the zooming and focusing information at the moment is stored; during cruise monitoring, the clear image in the specific scene can be acquired by calling the zooming and focusing information stored before; and manual adjustment is not needed, and thus the efficiency is higher.

The invention relates to a shaft-sleeve-free full-suspension magnetic stirrer, which comprises a driving device, a speed reducer and an inner driving shaft, the outer portion of the inner driving shaft is sequentially sleeved with a rack and a sealing sleeve from bottom to top, and the sealing sleeve is connected with the rack through a welding chassis; a lower magnetic suspension sleeve, a driving magnetic cylinder and an upper magnetic suspension sleeve are sequentially arranged outside the sealing sleeve from bottom to top in a sleeving manner, stirring blades are arranged outside the uppermagnetic suspension sleeve, the driving magnetic cylinder and the lower magnetic suspension sleeve, and the upper ends of the stirring blades are fixed to a magnetic suspension positioning sleeve atthe top end of the inner driving shaft; lower magnetic rings with opposite polarities are respectively arranged on the inner walls of the lower inner magnetic suspension sleeve and the lower outer magnetic suspension sleeve; upper magnetic rings with opposite polarities are respectively arranged on the inner walls of the upper inner magnetic suspension sleeve and the upper outer magnetic suspension sleeve; and magnets are arranged on the inner walls of the inner driving magnetic cylinder and the outer driving magnetic cylinder. The problem that liquid medicine is polluted by abrasive dust generated by magnetic stirring of the shaft sleeve is solved, the structure is simple and durable, the service life of the stirrer is prolonged, and the liquid medicine stirring quality is improved.

A device for mounting an additional wheel on an agricultural planter to provide a dual wheel assembly. Said device comprising a generally cylindrical member with radially projecting flanged portions at each end thereof, a plurality of apertures extending through the flanged portion at one end of said cylindrical member and positioned to receive the wheel mounting studs of a planter's wheel hub, and a plurality of externally threaded shafts projecting outwardly from the flanged portion at the opposite end of said cylindrical member and positioned to mate with the mounting apertures of the auxiliary planter wheel being added.