39results about How to "Small size and structure" patented technology

The invention discloses a lift-type extension cabin which comprises a movable cabin and a fixed cabin on the lower surface of the movable cabin; extension cabins are arranged on two sides of the movable cabin and two sides of the fixed cabin; the movable cabin is connected with the fixed cabin through a lifting mechanism; the movable cabin comprises a movable cabin top plate, a movable cabin end plate, a movable cabin side plate and a movable cabin partition plate; the fixed cabin comprises a fixed cabin bottom plate, a fixed cabin end plate, a fixed cabin side plate and a fixed cabin partition plate; each extension cabin is provided with an extension cabin top plate, an extension cabin bottom plate, an extension cabin side plate and an extension cabin end plate; the extension cabin top plate is connected with the movable cabin side plate; the extension cabin bottom plate is connected with the fixed cabin bottom plate; a first lifting device is hinged between the extension cabin top plate and the movable cabin; and a second lifting device is hinged between the extension cabin bottom plate and the fixed cabin. Through the use of the lift-type extension cabin, the internal use area of the cabin is increased and the internal height of the cabin is also increased so as to enable human bodies to be comfortable, the railway transportation and the transporter transportation are achieved since a vehicle is not separated from the cabin, the maneuverability and the transportation efficiency of the square extension cabin are improved, and the invention can be suitable for square extension cabins or extension van vehicles.

The invention provides an energy transference system and method based on primary pulse source self coupling. An energy transference switch of the system adopts a field distortion oil medium triggering switch (called as field distortion triggering switch thereinafter) so that an applicability problem of a primary pulse source with a shorter charging time is solved and at the same time, through adoption of a method of triggering the energy transference switch by electrical pulses generated from direct coupling of the primary pulse source, a problem of effective protection of a device under a condition that self discharge of the primary pulse source happens is solved. Moreover, the system prevents use of a gas triggering switch, a laser device and a synchronous control system so that the size structure of the system is reduced effectively and the development cost is reduced; and the energy transference system and method are applicable to protection of primary pulse sources, transmission lines and main switches in different kinds of large pulse power devices.

The invention provides a zoom camera module and a mobile terminal. The zoom camera module comprises a lens, an imaging sensor and a circuit substrate. A track assembly is arranged between the imagingsensor and the circuit substrate, the imaging sensor is fixed to the track assembly, the track assembly is electrically connected with the circuit substrate, and the track assembly can drive the imaging sensor to move in the direction close to or away from the lens. In the zoom camera module, the electrified track drives the sensor assembly to move in the direction away from or close to the lens,zooming is achieved by changing the distance between the imaging sensor and the lens, zooming can be accurately controlled, a fixed lens can be adopted, a zoom lens or a voice coil motor is not needed, and the size structure of the camera module is greatly reduced.

The invention discloses a stress applying method and a tool thereof for a low retraction pre-stress concrete member, wherein a stretching-drawing anchor of the member is so structured that an anchor plate is installed in a threaded hole of a nut through screw thread; the low retraction pre-stress anchor with the structure secondarily stretches and draws a pre-stressed tendon by using a special stretching-drawing tool, so that a small retraction quantity of the pre-stressed tendon can be obtained; thus, the problems of easy produce of diagonal cracks, great loss of effective and permanent pre-stress of pre-stressed steel strands, low utilization rate of the pre-stressed tendon when a main stretching stress exceeds a limit value which is regulated by the specification in the traditional anchoring process are effectively solved.

The invention discloses an electronic view finder lens. The electronic view finder lens comprises a barrel (100), wherein the barrel (100) is sequentially provided with a first lens (1), a second lens (2) and a third lens (3) from down to up, the first lens (1) is a positive plastic lens, the second lens (2) is a negative plastic lens, the third lens (3) is a positive plastic lens, the barrel (100) is provided with a light through hole (200) for eye observation, a positive focal length prism (4) is arranged between the light through hole (200) and the third lens (3), a face of the prism (4) facing towards the third lens (3) and the light through hole (200) is an aspheric face, and a face of the prism (4) used for reflecting light is taken as a full reflection face. The electronic view finder lens is advantaged in that the structure is compact, cost performance is high, and high-definition quality virtual imaging can be realized.

The invention discloses a large-torque U-shaped hydraulic slewing mechanism. The large-torque U-shaped hydraulic slewing mechanism comprises a cylinder body, wherein the cylinder body is U-shaped with the opening facing downwards; an exhaust hole is formed in the upper end of the cylinder body; the upper part of the cylinder body is a hydraulic oil cavity; a rotating shaft is arranged in the hydraulic oil cavity; a partition plate is arranged in the position, in the middle of the lower part, inside the cylinder body; an oil inlet channel is arranged in the middle of the partition plate; the partition plate divides the lower part of the cylinder body into a left cylinder body and a right cylinder body; a left piston and a right piston are respectively arranged inside the left cylinder body and the right cylinder body; a chain is connected between the left piston and the right piston; the chain is wound on a chain gear in the middle of the rotating shaft; the lower end parts of the left cylinder body and the right cylinder body are respectively provided with a left end cover and a right end cover; and a left oil hole and a right oil hole are respectively formed in the left end cover and the right end cover. According to the large-torque U-shaped hydraulic slewing mechanism, through the hydraulic transmission of the hydraulic oil in the U-shaped cylinder body, the left piston and the right piston move up and down in the left cylinder body and the right cylinder body, and the chain connected between the left piston and the right piston drives the rotating shaft to rotate.