31results about How to "Easy and stable rotation" patented technology

A central bidirectional rotation locking mechanism for a folding tent includes a lock rod, an upper lock plate, and a lower lock plate assembly. The lower lock plate assembly includes a first lower plate, an unlocking plate, and a second lower plate. An elastic locking member and an unlocking mechanism used to control the elastic locking member to perform locking are disposed in the unlocking plate. The elastic locking member is used to lock the lock rod, and the unlocking plate is capable of bidirectional rotation. When the unlocking plate rotates, the unlocking mechanism is enabled to unlock the elastic locking member and the lock rod.

The invention relates to the technical field of communication equipment, and discloses shipborne satellite communication equipment and an operation method thereof. The shipborne satellite communication equipment comprises a rectangular mounting plate and a first rectangular bearing plate, wherein buffer protection devices are arranged on the left side, the right side, the front side and the rear side of the upper surface of the rectangular mounting plate, the left side of the upper surface of the first rectangular bearing plate is rotationally connected with a first rotating shaft, and the upper surface of the first rotating shaft is fixedly connected with a rectangular rotating plate. According to the shipborne satellite communication equipment, by arranging a first motor, a third rotating shaft, a transmission worm rod, a driving wheel, a driven wheel, a belt and a transmission worm wheel, a second rotating shaft can conveniently and stably drive a second fixed connecting block and athird rectangular bearing plate to rotate, so that the angle of a communication antenna can be conveniently and stably adjusted; and the shipborne satellite communication equipment is simple in structure, convenient to implement and high in flexibility, signals can be conveniently received and sent by the communication antenna, and the service life of the communication antenna is greatly prolonged.

The invention relates to a limiting mechanism, particularly to operating vehicle-mounted or skid-mounted equipment used for the field of oilfield equipment. The novel limiting mechanism comprises a mounting seat, a spring pin, a limiting plate and a pin shaft, wherein the limiting plate adopts a rocker arm mechanism; a round first pin shaft hole is formed in the limiting plate; the limiting plate penetrates the first pin shaft hole through the pin shaft, and is movably connected to the inside of the mounting seat; a round limiting hole is formed near the first pin shaft hole; one end of a spring pin penetrates through the limiting hole; the spring pin realizes limitation through the coordination with the limiting hole on the limiting plate. The core shaft is driven to move back and forth by pulling a handle, so that a double end stud can slide along the groove until the double end stud is rotated to be clamped to a limiting groove, the core shaft can be inserted into the limiting hole to achieve a fixing function, and the limiting can be relieved through a rotating manner. The device is simple in structure, convenient to operate and firm in fixing.

A reproducing apparatus includes a reading unit configured to generate a reproduced signal containing information data recorded in a track using a reflected light of an optical beam, a clock generation unit configured to generate a clock having a frequency associated with a wobbling cycle of the track, and a control unit configured to detect a phase difference between the reproduced signal and the clock, and to control the clock generation unit using the phase difference detection result.

The invention provides a rust removal guiding device, and belongs to the technical field of steel bar truss machines. The device comprises a dust removing mechanism, a returning mechanism and a rust removal clearance adjusting mechanism; a first rust removing wheel of the rust removing mechanism is rotatably arranged at one side of a first rust removing wheel support; a second dust removing wheel is rotatably arranged at one side of a second dust removing support; a first sector gear connected with a first rotating shaft is engaged with a second sector gear which is connected with a second rotating shaft; a cylindrical sliding block of the returning mechanism is arranged in a fixing support by sliding leftwards and rightwards; a left returning spring is arranged between a left adjusting plug and the cylindrical sliding block, and while a right returning spring is arranged between the right adjusting plug and the cylindrical sliding block; a clearance adjusting plate of the dust removal clearance adjusting mechanism can swing up and down about a hinging point at the left end; the lower end of a compressing lead screw is in coaxial threaded connection with the second rotating shaft; a butterfly gasket, an adjusting spring and a locking nut are arranged at the upper end of the compressing lead screw. The rust removal guiding device is small in size, and can effectively remove rust on a steel bar.

The invention discloses a transmission debugging device for observing a conveying chain wheel. The transmission debugging device for observing the conveying chain wheel comprises a bottom plate, wherein positioning columns are arranged at positions of four corners of the bottom plate; a first slot is formed in the bottom plate; a positioning tube is arranged on the bottom plate; a fixing plate is arranged above the bottom plate and is arranged at ends of the positioning columns; a second slot is formed in the fixing plate and corresponds to the first slot; sleeving holes are formed in positions of four corners of the fixing plate; ends of the positioning columns are arranged in the sleeving holes; an adjusting rack is arranged between the bottom plate and the fixing plate; sleeving holes are formed in the adjusting rack; the positioning columns penetrate through the sleeving holes; mounting shafts are arranged on two sides of the adjusting rack; a traction wheel sleeves a peripheral surface of each mounting shaft; an operating rod is arranged between the bottom plate and the fixing plate and is arranged among the positioning columns; and a mounting plate is arranged on the bottom plate. By the transmission debugging device for observing the conveying chain wheel, the traction wheels, a transmission wheel and the conveying chain wheel are successively connected, stable rotation of the conveying chain wheel is facilitated, transmission of the conveying chain wheel is also facilitated, and the conveying chain wheel is convenient to observe.

The invention discloses a protection device for coal mining large safety and a using method thereof.The protection device comprises a protection cover, tempered glass is fixedly embedded in the top of the protection cover, a supporting plate is fixedly connected to the bottom end of the protection cover, a rotating door is rotationally connected to one side of the protection cover, and a fixing cover is rotationally connected to the top end of the protection cover through a hinge; a sealing mechanism is arranged on one side of the fixing cover and one side of the protective cover, an anti-collision mechanism is arranged on the outer wall of the supporting plate, a moving mechanism is arranged at the bottom of the supporting plate, a fixing mechanism is arranged on one side of the rotating door, and an oxygen bag is fixedly connected to the bottom end of the fixing cover. By means of the arrangement mode that the protective cover and the rotating door are matched, through connection of the fixed cover, a worker can conveniently stand in an inner cavity of the protective cover, the influence of slag on the worker is reduced, through the moving mechanism, the device can stably move in a mine through a mine tunnel, patrol of the mine is facilitated, and through the anti-collision mechanism, the influence on mine equipment is reduced.

The invention provides a garbage salvage device for marine environment protection and a use method thereof, and specifically relates to the technical field of marine environment protection. The present invention comprises hull, and the two sides of hull are provided with several cabin covers, and the first air cylinder is arranged between cabin cover and the inner bottom surface of cabin; The cylinder body is provided with a fixed block, the fixed block is provided with a connection block, and the second cylinder is provided between the other end of the connection block and the fixed block; the motor and the fixed cylinder are provided on the connection block; the fixed cylinder and the motor are respectively provided with Rotating plate and gear, the edge of the rotating plate is provided with gear teeth, and the connecting block is provided with a rotating chamber; there is a ventilation pipe between the fixed cylinder and the air pump, and a sliding rod is installed in the fixed cylinder; the end of the sliding rod is provided with a fishing net frame, and the salvage net frame is provided with a salvage net. The garbage salvage device for marine environment protection and the use method proposed by the invention can facilitate the salvage of marine garbage and improve the efficiency of marine garbage fishing.

The invention discloses an auxiliary protective device for high-end manufacturing industry equipment processing, which comprises a protective cover, tempered glass is fixedly embedded in the top of the protective cover, a supporting plate is fixedly connected to the bottom end of the protective cover, a rotating door is rotatably connected to one side of the protective cover, and a fixed cover is rotatably connected to the top end of the protective cover through a hinge. A sealing mechanism is arranged on one side of the fixing cover and one side of the protective cover, an anti-collision mechanism is arranged on the outer wall of the supporting plate, a moving mechanism is arranged at the bottom of the supporting plate, a fixing mechanism is arranged on one side of the rotating door, and an oxygen bag is fixedly connected to the bottom end of the fixing cover. By means of the arrangement mode that the protective cover is matched with the rotating door, through connection of the fixed cover, a worker can conveniently stand in an inner cavity of the protective cover, the influence of high-temperature slag on the worker is reduced, through the moving mechanism, the device can stably move in a workshop, inspection of the workshop is facilitated, and through the anti-collision mechanism, the influence on workshop equipment is reduced.

The invention discloses a pipe sealing performance testing device, comprising a bottom plate, a top of the bottom plate is fixedly connected with a mounting frame, and both sides of the top of the inner cavity of the mounting frame are fixedly connected with a first cylinder, The output end is fixedly connected with an adjustment frame, the two sides of the top of the bottom plate are fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a placement arc frame, and both sides of the inner cavity of the installation frame are fixedly connected with a drive frame. Through the use of the first air cylinder, the second air cylinder, the hydraulic oil cylinder, the electromagnetic valve and the air pressure sensor, the present invention makes the equipment use a higher degree of automation, which is convenient for the user to operate and use. The use of the device can be more convenient for the fixed use of the equipment, and the use of the clamping device makes the use of the equipment more flexible, facilitates the sealing of pipes of different specifications, and improves the applicability of the equipment in use.

A control apparatus for an outboard motor mounted on a boat and equipped with a transmission having at least forward first and second speed gears and a reverse gear. The apparatus functions as a rudder angle detector that detects a rudder angle, a slip ratio detector that detects a slip ratio, and a transmission controller. The transmission controller controls the operation of the transmission to select one of the gears based on the detected engine speed or the detected slip ratio according to a comparison between the detected rudder angle and a predetermined angle.

The invention discloses a pre-mixing device of a clay-plastic blank. The pre-mixing device of the clay-plastic blank comprises a box body, wherein a rotating column is inserted and connected at the middle section of the upper surface of the box body; a bearing connected with the inner cavity wall of the box body is sleeved at the bottom of the rotating column; circular rings are adjusted at the bottom of the outer surface of the rotating column; circular holes are formed in both of two ends of the upper surface of each circular ring; mixing plates are fixedly mounted at both of two ends of theouter surface of each circular ring; a fixing plate is fixedly mounted at one end, away from each circular ring, of each mixing plate; a cushion connected with the inner cavity wall of the box body is fixedly mounted on the outer surface, away from each mixing plate, of the fixing plate; and pulleys connected with the inner cavity bottom wall of the box body is movably mounted at the bottom of the fixing plate. The mixing plates arranged according to the invention are good in stirring effect; the fixing plate and the cushion which are mounted enable the inner wall of the box body to be cleaned while the device is used for mixing, so that the use is convenient and the time is saved; the pulleys are mounted, therefore, the fixing plate is more convenient and more stable while rotating.