133results about How to "Fast opening and closing" patented technology

The invention relates to an electromagnetic permanent composite driving switch and an impact mechanism, comprising a permanent-magnet moving body, an electromagnetic coil, a sleeve, an upper magnetic conductive cover, a lower magnetic conductive cover, an upper force output bar and a lower force output bar, wherein the permanent-magnet moving body is arranged in a space formed by the upper magnetic conductive cover, the lower magnetic conductive cover and the sleeve which are fixedly connected, the permanent-magnet moving body is also arranged inside the electromagnetic coil, the spacing between the upper magnetic conductive cover and the lower magnetic conductive cover is more than the length of the permanent-magnet moving body, the upper and the lower ends of the permanent-magnet moving body are respectively and fixedly connected with the upper force output bar and the lower force output bar, the upper force output bar and the lower force output bar respectively penetrate through through holes in the middle of the upper magnetic conductive cover and the lower magnetic conductive cover, the permanent-magnet moving body is a single permanent magnet and a permanent ferromagnetic composite body, and the permanent ferromagnetic composite body is formed by a permanent magnet and a ferromagnet which are fixedly connected. The invention has the advantages that the overall structure is simple, the instantaneous suction without partial vibration can be formed, the opening and the closing are stable, the opening and closing actions are quick and accurate without fluctuation, and the power failure stability retention at the opening or the closing position can be realized.

A rollup door comprising a door leaf of increasing width from top to bottom and having a narrower part on the top and a wider part on the bottom, and flexibility in the rolling direction; channels for guiding the door; and two modules for rolling and unrolling the door leaf so that a number of leaf layers do not come in contact. The modules are situated on each side of the door, have the same center axes and are successive radially enlarged so that on opening and closing of the door, the narrower and wider parts of the leaf engage the smaller and larger parts respectively of the modules.

The invention discloses an agricultural high fruit picking device comprising a two wheel trolley. A lifting mechanism is movably connected to the upper portion of the two wheel trolley and is movably connected to a console; the console is movably connected to one end of a telescopic arm, the other end of the telescopic arm is movably connected to a balance mechanism, the top of the balance mechanism is connected to a shearing arm, and the bottom of the balance mechanism is connected to an accommodating bag. According to the device, the two wheel trolley replaces of a power transport vehicle to be adaptive to poor driving condition of an orchard; the telescopic arm replaces of a mechanical arm with multiple freedom degrees, weight is decreased, structure and control of the arm are simplified, and the moving space of the arm is saved; the suspended soft bag replaces of a fixed fruit conveying channel, the fruit conveying distance is shortened, and fruit damage is reduced; the device is more adaptive to the application for the orchard.

The invention discloses an electric push-pull type vehicle-mounted generator bracket. Front ends of two side beams of a lower bracket are connected with push rod fixing plates; two sliding chutes are correspondingly arranged above the two side beams of the lower bracket; an upper bracket is mounted in the two sliding chutes; the upper bracket slides in the two sliding chutes back and forth; an electric push rod is arranged between each push rod fixing plates and the upper bracket; one end of the electric push rod is hinged with a support on the push rod fixing plate, and the other end of the electric push rod is hinged with a support fixed below the bracket; a groove-shaped limiting bar of which the notch faces forward is fixed above the rear end of the upper bracket; the upper bracket is provided with a generator fixing plate; two sides of the generator fixing plate are connected with upper bracket fixing blocks; the two upper bracket fixing blocks are lapped on the two sides of the upper bracket; the upper bracket fixing blocks move back and forth along the sliding chutes with the upper bracket; and the upper bracket fixing blocks are limited back and forth by front and rear fixing blocks arranged on the outer sides of the two sliding chutes. Labor is saved to push and pull the bracket; and a generator is reliably fixed and convenient to assemble and disassemble.

The invention discloses a positioning jacking-out device for a stamping die, and relates to the technical field of stamping dies. The positioning jacking-out device comprises a box. The bottom of theinner wall of the box is fixedly connected with a hydraulic rod. The top end of the hydraulic rod is fixedly connected with a mounting plate. The bottom of the inner wall of the box is fixedly connected with an electromotor. An output shaft of the electromotor is fixedly connected with a first conical gear. The two sides of the first conical gear are engaged with second conical gears. The axes ofthe two second conical gears are fixedly connected with lead screw shafts. The surfaces of the lead screw shafts are connected with moving plates in a threaded mode. The bottoms of the moving plates are slidably connected with sliding rails. The positioning jacking-out device for the stamping die and a working method of the positioning jacking-out device have a novel positioning structure and mode, opening and closing are automatically controlled, using is very convenient, the positioning effect is good, damage does not occur easily, jacking out of the die is not affected, the opening and closing speed is high, and the production efficiency of the die is greatly increased.

The invention discloses a hydraulic self-centering fast clamping device which comprises an oil path end plate (1), an oil path bridge plate (2), an end plate (3), a rotary shifting fork (4), an oil cylinder (5), a driving joint (6) and a clamp (7). When the clamping device formed by the components is applied, the device is fixed on a fourth shaft which rotatably works in a numerical control center. The oil cylinder is connected with an oil distributer of the fourth shaft of the numerical control center through built-in oil paths in the oil path bridge plate and the oil path end plate, and is controlled by a computer of the numerical control center. The oil cylinder drives the clamp to open and close quickly to clamp a dissembling workpiece through the driving joint and the rotary shifting fork for three-dimensional five-shaft cutting processing, the deficiencies of large strength, low efficiency and poor clamping precision are overcome in the prior art. The clamping device is connected with the fourth shaft of the numerical control center and is driven hydraulically to open and close, so that the work intensity is reduced, the disassembling efficiency is improved, and the clamping precision is improved for clamping and disassembling work pieces.

The invention discloses an anti-explosion container which mainly comprises a container body, a quick-opening end cover and a peripheral support. The container body mainly comprises a shell, an end flange and an ellipsoidal seal head, the end flange and the ellipsoidal seal head are respectively welded at two ends of the shell, and a concave clamp groove is formed in the flange by means of machining. The peripheral support sleeves the container body, so that a skirt support can be provided for the container, and the anti-explosion performance of the container body can be reinforced. Lugs are welded on the peripheral support, lifting handles are hinged to the lugs by dowels, and the container with the lugs is convenient to carry. The anti-explosion container with peripheral support reinforcement design technologies has the advantages of high anti-explosion equivalence, light weight, convenience in carrying and the like.

The invention discloses an automatic lossless dismounting recovery method and an automatic lossless dismounting recovery device of a discarded printed circuit board. The method is characterized by comprising the following steps of preparing low-grade overheat vapor by using industrial waste heat through a waste heat boiler, and heating and pulse blowing the discarded printed circuit board at high temperature so as to realize the automatic lossless dismounting of electronic elements and devices on the discarded printed circuit board; guiding the overheat vapor after the working into a heat exchanger, reheating the overheat vapor after the working through the heat exchanger by utilizing the industrial waste heat as a heat source, and recycling the overheat vapor. By adopting the automatic lossless dismounting recovery method and the device, not only can the energy be greatly saved, but also the heat pollution caused by the industrial waste heat can be effectively reduced, the secondary pollution to the environment caused by dismounting the discarded printed circuit board at the high temperature can be avoided, the energy can be reasonably reused, and not only can the national policy of energy conservation and emission reduction be satisfied, but also a positive effect on protecting the environment can be realized.

A mould locking device for a bottle blowing machine comprises a mould frame base, a front mould plate, a middle mould plate, a rear mould plate and a guide column, wherein the front mould plate, the middle mould plate and the rear mould plate are arranged on the mould frame base, the guide column penetrates through all mould plates, a left mould is positioned on the middle mould plate, a right mould is arranged on the front mould plate, and a hinged mould locking mechanism is symmetrically distributed and movably hinged between the middle mould plate and the rear mould plate. The mould locking device is characterized in that a flat piston cylinder is installed between the right mould and the front mould plate. The hinged mould locking mechanism is formed by two hinge rods which are movably hinged with a connection rod A and a connection block, the two hinge rods are movably hinged through a carriage, and a servo motor driving roller lead screw is in screw connection with a nut on the carriage. The mould locking device has the advantages of using an ordinary air cylinder or a hydraulic oil cylinder or even the servo motor push lever principle to open and close a mould so as to be quick in opening and closing speed and small in energy consumption; and individually using a mould locking air cylinder with large cylinder diameter and short stroke to lock the mould so as to be large in mould locking force, high in work efficiency and the like.

The invention discloses a mobile climbing type image acquisition detection robot. The mobile climbing type image acquisition detection robot comprises a bearing chassis, mechanical arms and a total controller, wherein a supporting base is arranged on the upper surface of the bearing chassis; a video camera is arranged at the top of the supporting base; mechanical arm supporting frames are arranged at the periphery of the bearing chassis; the mechanical arms are fixedly arranged on the end parts of the mechanical arm supporting frames; mechanical claws are arranged at the tail ends of the mechanical arms; and each mechanical claw comprises mechanical branched claws, collecting columns, gears and supporting columns. The mobile climbing type image acquisition detection robot adopts six-feet design and a mechanical claw structure, has the functions of the functions of the existing robot and realizes a true climbing robot by virtue of the grabbing capabilities of the six mechanical claws, can climb vertical steps, can stop on a vertical structure object by virtue of a grabbing force and facilitates effective work of image acquisition equipment and a detector on the robot; and the robot chassis is provided with caterpillar tracks capable of moving on muddy ground conveniently.

The invention discloses a pressure test pit. The pit comprises a pit body, a folding-type pit cover and a pit cover driving mechanism, wherein the folding-type pit cover is arranged at the upper part of the pit body in a sliding manner and comprises a positioning end and a driving end; the positioning end of the folding-type pit cover is movably connected to the end part of the pit body; and the driving end of the folding-type pit cover is movably connected with the pit cover driving mechanism. According to the pressure test pit, firstly automatic opening and closing of the pit body can be quickly realized and secondly the pit body can be enabled to be in a relatively sealed state during testing, so that a situation caused by accidental injury is instantly compressed in the pit body and the pressure test risk is lowered.

The invention provides a flexible interlink steel gate and a support opening/closing device thereof, which belongs to the technical field of hydraulic engineering. The flexible interlink steel gate mainly comprises a flat plate steel gate (1), a gate support hinge (2), a cylindrical rubber bag communicated (7) with a water supply/drainage system, a flange (6) at the upper part of the rubber bag, a connecting piece (8) at the lower part of the rubber bag, a bottom water stop (3), a side water stop (18), a door interlink, and the like. The steel gate is made of a steel panel and a light structural steel beam grid system through welding, adjacent gates can be connected through the water stops and the interlink fasteners, and one gate is connected with a bottom plate pre-embedded part (5) through a hinge, and is controlled to be opened or closed through the expansion and the retraction of the rubber bag which is filled with water or discharges water. The invention has the advantages that less central piers are used, water is not blocked, the gate has a light and thin body and can be controlled to be opened or closed by a person, the water filled and discharge amount is small, the cost of construction is low, and the use is convenient, so that the flexible interlink steel gate and the support opening/closing device thereof can be widely applied in mountainous area watercourses and small hydro-electric power plants.

A release auto-grip locking tool designed for single hand use while maximizing safety and ease of use by way of isolating the release auto-grip feature from the leveraged power-gripping feature thus maximizing power to the jaws.

The release auto-grip feature wherein the tool by design constantly applies a limited closing pressure to the jaws and where releasing the tool closes the tool jaws on any size work piece within the capability of said tool. The locking feature also works independently of the other features making possible a ratcheting locking feature that allows a user to increase locked gripping force to a work-piece without removing the tool.

The invention provides a manufacturing method of a combined ball clack for a high-pressure double-valve-seat track ball valve. Ball clack bodies and a rolling shaft are of a matched structure, a gap is formed in the center connection position, and normal movement of the combined ball clack is guaranteed. According to the manufacturing method, firstly a cylindrical through hole is machined in the lower end of a center shaft of a whole valve ball body; secondly, the ball body is symmetrically divided into the left ball clack body and the right ball clack body; thirdly, the rolling shaft is machined according to the diameter of the cylindrical through hole; fourthly, the rolling shaft is put into the cylindrical through hole between the two ball clack bodies; and fifthly, the combined ball clack is formed. The combined ball clack is flexible to open and close, high in opening/closing speed and convenient to operate, and meanwhile the problem of dirt deposition at the center connection position of the ball clack is solved.

The invention provides a turnover sliding combined type roofing structure capable of being opened and closed. The structure comprises main beams, a main beam bracket, a support, a turnover structure and a sliding structure, wherein the main beams stretch across a building; the main beam bracket stretches across the main beams; the support is used for supporting the main beams; the turnover structure is arranged on the support; and the sliding structure is arranged on the support in a sliding way. A vehicle body sealing plate provided by the invention is simple in structure and high in applicability, and can be directly arranged on a steel safe shell cylinder body. Large-area opening or closing can be realized through automation, the requirements on building lighting, rain and snow resistance and wind resistance can be met, the lifting operation requirement of a reactor building can be met, and the structure can be conveniently mounted and dismounted for reuse.

The invention discloses organic waste gas-smoke channel switching equipment and a channel switching method. The equipment and the method are applied to a double-chamber RTO waste gas treatment system in the field of organic waste gas treatment. The switching equipment is connected with an air inlet chamber, an air outlet chamber and an RTO equipment body, and comprises an upper gas channel, a lower gas channel and a vertical channel, the vertical channel is divided by a separating plate into two parts, the two vertical channel parts comprise an upper channel opening and a lower channel opening, hydraulic valves are arranged between the upper gas channel and the two vertical channel parts, the bottoms of valve rods are connected with a baffle, and the baffle is located between the upper channel opening and the lower channel opening; and a vent opening is formed in one side of the vertical channel. According to the switching method, motion position changes of the two valve rods are switched to achieve switching of smoke and waste gas flowing directions of the RTO equipment. The system switching speed is high, the thrust force of the hydraulic valves is large, the overall structure is compact, the floor space of the RTO equipment is greatly reduced, installation is convenient, the closed achieving manner of the baffle and the channel is metal sealing, the sealing effect is good, and the service life is as long as million times.

A slide door of a machine tool which slide door is constituted by first and second doors for opening and closing, in a sliding manner, an opening of the machine tool includes: a first nut fixed to the first door; a first ball screw engaged threadedly to the first nut; a second ball screw placed in parallel with the first ball screw; a second nut engaged threadedly to the second ball screw and fixed to the second door is fixed thereto; and a motor for driving the first and second ball screws via a power transmission mechanism.

The invention discloses a high-performance gate valve and aims to overcome the defects that an existing gate valve is poor in sealing performance and low in opening and closing speed. The gate valve comprises a valve body, a gate plate, a valve deck and a support, wherein the gate plate is installed in the valve body in a matched mode, the valve deck is connected between the valve body and the support, a valve rod is connected to the gate plate, a left sealing face and a right sealing face are arranged in the valve body and correspond to the position of the gate plate, the outer surface of thegate plate is coated with a sealing layer, and sealing protrusions are arranged on the two sides of the gate plate. The two sealing protrusions are respectively attached and sealed with the left sealing face and the right sealing face. A support nut is installed on the support, a gate plate nut is installed on the gate plate, the thread turning direction of the support nut is opposite to that ofthe gate plate nut, and the support nut and the gate plate nut are both in threaded connection with the valve rod. The high-performance gate valve is good in sealing performance and high in opening and closing speed.