61results about How to "Achieve length" patented technology

The invention provides a balance action testing device and method. The device comprises a bottom disc, measurement rods, push marks and vector bearings. The bottom disc comprises a central shaft, a disc, inner rods, a circular rail and sliding wheels. The central shaft is located at the center of the disc, the circular rail is located on the edge of the disc, the two ends of inner rods are connected with the central shaft and the sliding wheels respectively, the sliding wheels slide in the circular rail, the measurement rods are sleeved with the push marks in a sliding mode, and the measurement rods vertically rotate with the vector bearings as shafts.

There is disclosed a power connection apparatus which can secure connection between a power socket and a power plug and which can simplify the connecting operation properties thereof. A handle rotatably attached to the power plug having terminals includes engaging claw disengageably engaged with engagement portion of the power socket having an electrode portion, an abutment portion which abuts on the power socket, and a grip portion. The rotation of the grip portion in such a direction as to come away from the power socket is limited by the angle of the rotation of the handle in a direction in which the grip portion comes close to the power socket.

The invention discloses an adjustable double cutting head cutter device used for manufacturing a phenolic aldehyde air duct and an adjusting method. The adjustable double cutting head cutter device comprises a cutter mounting block, cutter adjusting blocks, cutter adjusting frames and cutting heads. Cutter adjusting block mounting grooves are formed in the cutter mounting block, and cutter adjusting grooves are formed in the bottom of a cutter frame mounting groove. Adjusting frame mounting grooves are formed in the cutter adjusting blocks. Adjusting holes are formed at the two ends of each adjusting frame mounting groove, and adjusting blocks mounted in the cutter adjusting grooves are arranged at the bottoms of the cutter adjusting blocks. The cutter adjusting blocks are used for, on one hand, adjusting the cutting distance between two blades on one hand, and on the other hand, mounting the cutter adjusting frames. Each cutter adjusting frame is of a shaft structure convenient to rotate and adjust. Fastening threaded end heads are arranged at the two ends of each cutter adjusting frame, and a cutting head mounting groove is arranged in the middle of each cutter adjusting frame. The two cutter adjusting blocks are mounted in the cutter adjusting block mounting grooves, and adjusting blocks of the two cutter adjusting blocks are connected through an adjusting screw rod. The cutter adjusting frames are mounted in the adjusting frame mounting grooves. The two ends of each cutter adjusting frame are adjusted and fixed by locking nuts. The cutting heads are mounted in the cutting head mounting grooves.

The invention provides a folding ladder with a locking device. The folding ladder with the locking device comprises two hinged ladder bodies and lateral supporting rod arranged on the two sides of the two ladder bodies. The folding ladder with the locking device further comprises a first connecting rod, a second connecting rod and the first locking device, wherein the first connecting rod is movably connected between the first ladder body and the first lateral supporting rod; the second connecting rod is movably connected between the second ladder body and the first lateral supporting rod; the first locking device is used for locking the first connecting rod and / or the second connecting rod and connected with the first connecting rod and / or the second connecting rod; and the first locking device is arranged on the first ladder body or the second ladder body or the first lateral supporting rod. The safety of the ladder is improved.

The invention discloses a connecting device between multiple rows of seats of an automobile. Each seat comprises an upper seat and a lower seat, the two sides of the upper seat are provided with sliding rails for rolling of rollers, the bottoms of the sliding rails are provided with a plurality of fixing grooves for fixing the rollers, rolling wheels in the rollers are movably connected with the sliding rails, the outer side of the rollers are fixed to one end of a connecting block, the connecting block is used to connect the upper seat with the lower seat, the other end of the connecting block is fixed to the lower seat, the upper seat moves to a partition plate of the lower seat, the partition plate is fixed to the bottom of the lower seat, the bottoms of both the upper seat and the lower seat are provided with a plurality of supporting rods and movable feet, and lifters for controlling the heights of the supporting rods are arranged in the supporting rods. The connecting device is simple in structure, is connected reliably and is convenient to assemble, one lifter is installed on the support rod of each seat, the height of the lifter can be controlled through a lifting button, and plenty of use costs are reduced; the seat can be divided into the upper seat and the lower seat, the length of the seat can be achieved, and the applied range is wide.

The invention relates to the technical field of engines, and discloses a control valve, a control oil circuit and a variable compression ratio engine including the control valve. The control valve includes a valve body, a valve core and an elastic member. The piece is connected to the first end of the valve chamber. The valve body is provided with a first inlet, a second inlet and a return port respectively connected with the valve chamber. The return groove communicates with the return port, and the control valve is applied to variable compression Compared with the control oil circuit of the engine, the return channel can be switched in a single control valve to realize the automatic oil filling and oil drain function of the two hydraulic chambers of the connecting rod control oil circuit, without the need to arrange too many oil circuits and reduce the layout space. It is required that the length of the connecting rod is switched by controlling the oil passage to realize the change of the engine compression ratio, so that the overall structure of the engine is compacted.

The invention provides a balance action testing device and method. The device comprises a bottom disc, measurement rods, push marks and vector bearings. The bottom disc comprises a central shaft, a disc, inner rods, a circular rail and sliding wheels. The central shaft is located at the center of the disc, the circular rail is located on the edge of the disc, the two ends of inner rods are connected with the central shaft and the sliding wheels respectively, the sliding wheels slide in the circular rail, the measurement rods are sleeved with the push marks in a sliding mode, and the measurement rods vertically rotate with the vector bearings as shafts.