34results about How to "Smooth and efficient rotation" patented technology

A screwdriver bit structure having auxiliary positioning function includes a screwdriver bit of which one end is a circular cylinder and having a driving portion that is any one of a slotted type, a cross type and a polygon type. Another end of the circular cylinder is a fitting portion that is buckled to the screwdriver bar. The features of the invention are that the circular cylinder has a concave ring groove near the front of the driving portion. An auxiliary sheath is a long tube body that has a tube hole. The internal diameter of the tube hole is slightly larger than the periphery of the circular cylinder. A protruding ring is disposed to an internal wall of the tube hole. Accordingly, the tube hole of the auxiliary sheath can cover the periphery of the circular cylinder to allow the screwdriver bit to achieve the absolute positioning.

An air-bleed gas turbine includes a compressor; a combustor; a turbine; and an air bleed portion by which compressed air, which is supplied from the compressor to a circular space that surrounds the combustor, is partially supplied to a device outside the air-bleed gas turbine. The air bleed portion includes an air bleed passage that is communicated with an air bleed port which is connected to the device outside the air-bleed gas turbine, and a communication passage that is communicated with the circular space. The air bleed passage is communicated with the circular space through the communication passage. The flow passage area of the communication passage is increased as the distance from the air bleed port increases in the circumferential direction of the circular space.

A high-durability storage case is provided in which a disc can be smoothly inserted into and taken out from the storage case, and in which attachment and detachment operations of the disc can be stably performed. According to the storage case (2), a case body (3), a case cover (4), and a supporting plate (5) supporting a disc (1) are pivotally supported in a mutually openable / closeable manner by a four-link mechanism (16) defined by first, second, third, and fourth hinges (11), (12), (14), (15) and an arm segment (13). When the case cover (4) is opened or closed with respect to the case body (3), the supporting plate (5) is drawn into or drawn away from the case body (3) together with the case cover (4).

A high-durability storage case is provided in which a disc can be smoothly inserted into and taken out from the storage case, and in which attachment and detachment operations of the disc can be stably performed. According to the storage case (2), a case body (3), a case cover (4), and a supporting plate (5) supporting a disc (1) are pivotally supported in a mutually openable / closeable manner by a four-link mechanism (16) defined by first, second, third, and fourth hinges (11), (12), (14), (15) and an arm segment (13). When the case cover (4) is opened or closed with respect to the case body (3), the supporting plate (5) is drawn into or drawn away from the case body (3) together with the case cover (4).

The invention discloses an automotive ignition switch structure, and aims at providing an ignition switch which is reasonable in structure and high in overall stability and can be used for stably and effectively achieving rotation, contact and conduction and by which contact stability of a contact position is achieved and different contact pieces are distributed in a layered and regional manner. The ignition switch comprises a base, a cover shell and a switch cavity, wherein a static rivet and a plurality of shift rivets are arranged on the base, outer ends of the static rivet and the shift rivets are connected to each shift circuit of the ignition switch via wires, a driving rotation body is arranged in the switch cavity, a rotation hole is arranged on the cover shell, the outer end of the driving rotation body extends into the rotation hole, a key jack and a transverse extension part are arranged on the driving rotation body, a stator positioning base and a rotor positioning base are arranged on the base, a movable contact piece is arranged between the rotor positioning base and the transverse extension part and comprises a movable ring seat and a bridge convex connect piece, a movable contact spring is arranged between the movable contact piece and the transverse extension part, a static contact piece and a static contact spring are arranged on the driving rotation body, and the static contact piece is in contact with the inner end of the static rivet.

The invention discloses a metal pouring device which comprises a machine table. A horizontal beam component comprises a horizontal beam, a first hydraulic cylinder and a transmission mechanism. The first hydraulic cylinder is arranged on the side wall of a supporting column and drives the horizontal beam to rotate through the transmission mechanism. A left mould component comprises a left arm, a left template and a second hydraulic cylinder which is arranged on the left arm and is used for pushing the left template to move. A right mould component comprises a right arm, a right template and a third hydraulic cylinder. The right template is fixedly connected to a piston rod of the third hydraulic cylinder which is arranged on the right arm and is used for pushing the right template to move. The two ends of a mould set rotating hydraulic cylinder are connected with the left arm of the left mould component and the right arm of the right mould component respectively. The mould set rotating hydraulic cylinder moves in a stretching mode to drive the left arm and the right arm to rotate. According to the scheme, the left mould component and the right mould component can be separated easily, and accordingly separating of a metal product and a mould cannot damage the surface of the metal product.

The invention discloses a metal circular pipe conveying and turning device, which belongs to the field of pipe conveying mechanical equipment. The round pipe blanking guide of the invention is vertically arranged on the upper side of the round pipe transfer bracket, the carrier plate translation swing rod is arranged on the round pipe transfer bracket on the side of the push rod rotating cam, the carrier plate translation swing rod and the round tube transfer carrier plate There is a push plate translation connecting rod between them, the reciprocating circular plate is rotatably connected to the guide plate rotating bracket, the outer side of the reciprocating circular plate is provided with a round tube turning room, and the upper side of the branch reciprocating guide plate is arranged in turn along the translation direction of the branch reciprocating guide plate. A shunt guide material bearing plate, round pipe transfer belts are arranged on the round pipe guide brackets on both sides above the shunt transfer bracket. The invention has a reasonable structural design, can turn metal round tubes smoothly and accurately one by one to adjust the station, and can continuously and smoothly transfer the metal round tubes in shunt guides, improve the automation of metal round tube transmission, and meet the needs of processing and use.