12results about How to "Small operating torque" patented technology

The utility model discloses a double-fluid water mist spray head which comprises a spray head body, one end of the spray head body is connected with a communicating bin, one end of the communicating bin is connected with an airflow pipe, one side of the communicating bin is connected with a liquid flow pipe, and one end of the airflow pipe and one end of the liquid flow pipe are provided with a speed adjusting device. The speed adjusting device comprises a rotating sleeve, a sliding groove, a sliding block, a sliding plate, a linkage sleeve, a moving rod, a moving sleeve, a matching sleeve and a thrust bearing, the sliding groove is obliquely formed in the liquid flow pipe and the air flow pipe, the sliding block is connected to one side of the sliding plate, the thrust bearing is connected with the linkage sleeve and the matching sleeve, the moving rod is sleeved with the moving sleeve, and the sliding rod is sleeved with the matching sleeve. The outer wall of the matching sleeve is connected with the inner wall of the liquid flow pipe and the inner wall of the air flow pipe through threads, a locking mechanism is arranged on the outer side of the liquid flow pipe and the outer side of the air flow pipe, and the locking mechanism comprises a locking sleeve, a control panel, a control groove, a control hole, a shifting rod, a shifting plate, a locking spring, a locking block and a stop block. The flow velocity adjusting mechanism has flow velocity adjusting flexibility and adjusting mechanism stability.

The utility model discloses a low-torque large-caliber stop valve, which relates to the technical field of valves, and comprises a valve body, a valve cover, a valve rod, a hand wheel, a valve clack assembly and a valve seat, the valve clack assembly comprises a main valve clack and an auxiliary valve clack, the main valve clack is provided with a sliding chute, the auxiliary valve clack is arranged in the sliding chute and is connected with the valve rod, a valve clack gland is arranged above the sliding chute, and the valve clack gland is connected with the valve seat. The side wall of the main valve clack is provided with a liquid inlet hole communicated with the sliding groove and the inlet cavity, the bottom of the main valve clack is provided with a liquid outlet hole communicated with the sliding groove and the outlet cavity, the top face of the bottom wall of the sliding groove is provided with a small valve seat sealing face, and the small valve seat sealing face and the sealing face on the bottom face of the auxiliary valve clack jointly form a small sealing pair. And a buffer mechanism is arranged on the flow guide arc surface. Operating torque for opening and closing the valve can be effectively reduced, the diameter and the size of a valve rod of the valve can be reduced, the manufacturing cost of the valve is saved, erosion of high-pressure media to a sealing face can be effectively reduced, and the service life of the valve is prolonged.

The utility model relates to a helicopter tail rotor hub inner and outer cup nut disassembling and assembling device which comprises a tail rotor hub shell fixing device, a torque transmission device and a torque multiplier, and the output end of the torque multiplier is vertically connected with one end of a torque multiplier reducing sleeve; the tail rotor hub shell is rotationally mounted on a working table of the tail rotor hub shell fixing device; the torque transmission device comprises a sliding rod and a wrench; a first vertical plate and a second vertical plate are arranged on the working table and located on the two sides of the tail rotor hub shell. The bottom end of the wrench can be clamped in a tooth groove of the inner cup nut or the outer cup nut, and the top end of the wrench can be perpendicularly arranged at one end of the sliding rod in a sleeving mode. The other end of the sliding rod is vertically sleeved with the other end of the torque multiplier reducing sleeve. According to the scheme, the operating torque can be reduced, the torque applied to the nut during disassembling and assembling is stable, a product is not damaged, the labor intensity is reduced, and the labor efficiency is improved.

This utility model relates to the field of three-way plug valve technology and discloses a three-way plug valve, including a three-way valve body and a connecting plate. The connecting plate is disposed above the three-way valve body, and multiple mounting bolts are threadedly connected to the connection between the connecting plate and the three-way valve body. A drive shaft is rotatably connected inside the connecting plate, and the shaft of the drive shaft extends into the interior of the three-way valve body. A valve core is rotatably disposed inside the three-way valve body, and the top end of the valve core is fixedly connected to the bottom end of the drive shaft. When the drive shaft is rotated to switch the passage, the pressure plate rotates with the drive shaft. When the right-angle hole of the valve core aligns with the target passage, the pressure plate contacts one of the pressure sensors and applies pressure. The pressure sensor transmits the pressure signal to the controller through a wire. The controller can feed back the signal to an external control system, realizing accurate detection and feedback of the valve core switching position, ensuring accurate passage switching.

The utility model relates to the technical field of dust removal treatment, and discloses mine dust treatment equipment which comprises a treatment equipment base body, a mechanical angle adjusting device is installed above the treatment equipment base body, and a crank device is installed above one side of the mechanical angle adjusting device. When the device is used, efficient and labor-saving operation can be conveniently achieved through a small gear transmission device, a medium gear transmission device and a large gear transmission device which are internally designed through an arranged mechanical angle adjusting device, the device is of a pure mechanical structure, a small gear is driven through a crank, and the small gear is driven to rotate through a rotating shaft. By means of the multi-stage gear meshing design, the operation torque is remarkably reduced, the adjusting process is easier and more labor-saving, the whole device does not need to be driven by electricity completely, and the angle adjusting device is particularly suitable for being reliably used under the environmental conditions of the open mining industry and the like. The device has the outstanding advantages of simple structure, convenience in maintenance, high adaptability and the like.

The utility model relates to the technical field of butterfly valves, and discloses a hard sealing type three-connecting-rod butterfly valve used for pipeline medium switch control, which comprises a valve body, a valve seat, an overturning rod, a butterfly plate, a connecting rod and a worm reducer, the valve seat is fixedly arranged on the wall of an inner cavity of the valve body, the butterfly plate is positioned in the inner cavity of the valve seat, and the overturning rod is arranged on the valve seat. A positioning frame is fixedly arranged at the top of an inner cavity of the valve body, a rod body supporting assembly is fixedly arranged at the bottom end of the positioning frame, an overturning rod is transversely arranged in the middle of the inner cavity of the valve body, and a first driving rod assembly and a second driving rod assembly are installed in the middle of the overturning rod. By means of reasonable material selection, the butterfly plate has the advantages of being good in rigidity, resistant to temperature and corrosion, free of abrasion of a sealing face and the like, the service life of the valve is remarkably prolonged, by means of the worm speed reducer, the butterfly plate can have the self-locking capacity and stop at any position, and the operation performance of the valve can be improved.

This invention relates to the field of power distribution switchgear technology, and particularly to a load switch operating mechanism for a ring main unit, comprising a switch operating shaft, a grounding operating shaft, an energy storage component, and a limit component. The switch operating shaft is coaxially arranged with the switch drive shaft, and a first drive dial is located at its end; the grounding operating shaft is parallel to it above, and a second drive dial is located at its end. The energy storage component is pivotally connected to the switch drive shaft and the grounding operating shaft at both ends, respectively, enabling it to correspondingly perform closing and grounding energy storage and achieve rapid energy release during opening. The limit component includes a first driven dial, a second driven dial, a first limit arm, and a second limit arm. The two limit arms are respectively located above and below the first driven dial, ensuring reliable overshoot and rebound prevention when the switch is in the closed position performing an opening action; and reliable overshoot prevention when opening from the grounding position. When closing, the switch operating shaft rotates forward to unlock and store energy; when opening, it rotates backward to release energy and prevent overshoot and rebound; when grounding, the grounding operating shaft rotates backward to unlock and store energy.

The application discloses a valve seat floating type ball valve based on one-way bearings and relates to the technical field of valve seat floating type ball valves.The valve seat floating type ball valve based on one-way bearings comprises a valve body, a ball body arranged in the valve body, floating valve seats arranged on the two sides of the ball body in the axial direction of the valve body, an upper valve rod arranged on the top of the ball body, a lower valve rod arranged on the bottom of the ball body, the upper valve rod connected with the lower valve rod through a valve rod connecting shaft to realize synchronous rotation, the periphery of the upper valve rod connected with an upper cam through a first one-way bearing, the top of the ball body connected with the end of the upper valve rod through a second one-way bearing, the bottom of the ball body connected with the end of the lower valve rod through a third one-way bearing, the periphery of the lower valve rod connected with a lower cam through a fourth one-way bearing, the upper cam and the lower cam in contact with the upper and lower ends of the floating valve seat, the first one-way bearing and the fourth one-way bearing installed in the same direction, the second one-way bearing and the third one-way bearing installed in the same direction, and the first one-way bearing and the second one-way bearing installed in opposite directions.

The utility model discloses a kind of electric power steam pipeline valves with bidirectional sealing performance, it is related to electric power steam pipeline valve technical field, including, valve assembly, including valve body, the inside rotation of the valve body is connected with valve plate, the one side of the valve plate is fixed with valve rod, the top of the valve rod is fixed with electric control ware, the inside one side of the valve body is slidably connected with floating valve seat, sealing assembly, it is set to the inside of valve plate, including the first sliding cavity of being opened in the outer ring of valve plate.The utility model can realize bidirectional pressure bearing, and have compensation function, still can keep sealing after wearing, under the condition of guaranteeing bidirectional sealing, prolong service life, especially suitable for large pipe diameter pipeline, adopt metal hard sealing, utilize valve plate eccentricity setting, reduce operating torque, open and close more portable, simultaneously, in medium flow process, utilize water flow thrust to push first sealing ring to stick to floating valve seat, realize further sealing, greatly improve the sealing performance of valve.

The transmission mechanism of the civil aircraft cabin door comprises two lock rods, a fixing plate, a handle gear, a driven gear and two racks, the lock rods are arranged in parallel, the lock rods are sleeved with the fixing plate, and the two racks are connected with the lock rods. The middle of the handle gear and the middle of the driven gear are both connected with the fixing plate, the end of the handle gear and the end of the driven gear are meshed with the corresponding racks respectively, the other end of the handle gear is meshed with the other end of the driven gear, and when the handle gear rotates, the driven gear moves correspondingly. The transmission mechanism of the civil aircraft cabin door has the advantages of being compact, simple and reliable in structure, small and stable in operation torque, high in transmission efficiency and the like.

The sensor dismounting device comprises an operating rod set, and the tail end of the operating rod set is provided with a multi-mode dismounting end head assembly; the multi-mode disassembling end head assembly comprises a lever type disassembling part and a torsion type disassembling part; the lever type dismounting part can swing along with the operating rod group to pry up a sensor to be dismounted; the torsion type dismounting part rotates along the plane where the sensor is located to screw the sensor to be dismounted. The lever type dismounting part can swing along with the operating rod group to pry up a sensor to be dismounted; the torsion type dismounting part rotates along the plane where the sensor is located to screw the sensor to be dismounted. The two modes share the same operating rod set, the operation modes can be switched according to the space condition only through single-time insertion, and the requirement for repeatedly adjusting the angle of a traditional tool is thoroughly eliminated. In an engine compartment and other high-temperature environments, an operator operates away from a heat source through the operating rod set, limbs are prevented from making contact with the metal surface at the temperature of 150 DEG C or above, and therefore safety is improved.