5 results about "Hinge point" patented technology

An implantable vascular prosthesis having improved flexibility is provided comprising a helical body portion having a reduced delivery configuration and an expanded deployed configuration, the helical body portion comprising a plurality of cells interconnected by hinge points that enhances flexibility of the vascular prosthesis in the reduced delivery configuration.

The invention discloses an LED (light emitting diode) ceiling spot lamp. The LED ceiling spot lamp is provided with a rotating ring, wherein the rotating ring sleeves a spot lamp body; two opposite sides of the spot lamp body are hinged to two opposite sides of the rotating ring; the spot lamp body can rotate around a hinge point between the spot lamp body and the rotating ring in the rotating ring so as to fulfill the aim of adjusting an irradiation angle; a surface ring sleeves the rotating ring; the other two opposite sides of the rotating ring are transversely hinged to a pin shaft; an annular slot is formed in the inner ring wall surface of the surface ring; the outer end of the pin shaft is transversely inserted into the annular slot and can slide in the annular slot, so that the rotating ring can drive the spot lamp body to the spot lamp body to rotate together by 360 degrees in the surface ring around a center shaft of the surface ring; furthermore, the rotating ring is hinged to the surface ring through the pin shaft, so that the rotating ring can also drive the spot lamp body to rotate together in the surface ring around the pin shaft; the three rotating modes can be either used independently or used in a stacking manner, so that universal rotation is realized, and therefore, the spot lamp body realizes irradiation towards any direction, and the irradiation angle is wide in adjustment range.

The invention discloses two tripper cars of an electric variable-amplitude type wheel-bucket stack-taking machine. The two tripper cars comprise a first-tripper-car steel structure, a second-tripper-car steel structure and an electric variable-amplitude device, wherein the electric variable-amplitude comprises a hoisting mechanism, a pulley mechanism and an oscillating bar; the front end of the oscillating bar is provided with a pair of second hinge points which are symmetrical; the middle part of the oscillating bar is provided with a pair of first hinge points which are symmetrical; the second hinge points are hinged with the tail end of the first-tripper-car steel structure; the first hinge points are hinged with the front end of the second-tripper-car steel structure; the hoisting mechanism is connected with the front end of the second-tripper-car steel structure by the pulley mechanism; and the position change of the second-tripper-car steel structure is realized by the take-up and pay-off of the steel wire rope of the hoisting mechanism, so that the conversion of a stacking function and a taking function is realized. The invention has advantages of quick response action, small footprint, low cost and convenient maintenance.

The invention discloses a shaft sleeve abrasion testing system. The shaft sleeve abrasion testing system comprises a working platform, a first installation base, a second installation base, a fourth installation base, a drive oil cylinder, a load oil cylinder, a first connection rod and a hydraulic system, wherein the first installation base, the second installation base and the fourth installation base are installed on the working platform; the first end of the drive oil cylinder is hinged to the first installation base through a first hinge point; the second end of the drive oil cylinder is hinged to the first end of the first connection rod through a second hinge point; the second end of the first connection rod is hinged to the second installation base through a third hinge point; the first end of the load oil cylinder is hinged to the fourth installation base through a sixth hinge point; the second end of the load oil cylinder is connected to the first end of the first connection rod; the hinge points are located on the same plane; each hinged position is provided with a shaft sleeve and a pin shaft; the hydraulic system is used for supplying hydraulic oil for the stretching of the drive oil cylinder and the stretching of the load oil cylinder. The shaft sleeve abrasion testing system can simulate the abrasion condition of the shaft sleeves under the actual working condition, and improve the testing efficiency.