77results about How to "No relative movement" patented technology

The invention relates to the field of tissue engineering and 3D printing, in particular to an artificial tissue precursor and a preparation method thereof. Specifically, the invention relates to the artificial tissue precursor which comprises a solid support and a plurality of microcapsules, wherein at least one microcapsule is bonded with the solid support and each microcapsule contains cells anda cell-encapsulated biocompatible material. The invention further relates to a preparation method for the artificial tissue precursor, a kit and a box set used for preparing the artificial tissue precursor, artificial tissue obtained through culture of the artificial tissue precursor, a lumen implant or lumen model comprising the artificial tissue precursor or the artificial lumen, the application of the artificial tissue precursor in preparation of artificial tissue, the lumen implant or the lumen model, and the application of the artificial tissue in preparation of the lumen implant or thelumen model, wherein the artificial tissue refer to the artificial lumen and the like.

The invention relates to the field of tissue engineering and 3D printing, in particular to an artificial tissue precursor and a method for preparing the same. The artificial tissue precursor comprisesa solid support and a plurality of microcapsules, wherein at least one microcapsule is attached to the solid support, and each microcapsule comprises a cell and a biocompatible material encapsulatingthe cell. The method for preparing the artificial tissue precursor and a kit and a kit set for preparing the artificial tissue precursor are further provided. The artificial tissue is cultured by theartificial tissue precursor, like an artificial lumen. The artificial tissue precursor or a luminal implant or a luminal model of the artificial lumen is included. The artificial tissue precursor isused for preparing the artificial tissue, the luminal implant or the luminal model; the artificial tissue is used for preparing the luminal implant or the luminal model.

The invention discloses a printing head walking structure of a 3D printer. The printing head walking structure of the 3D printer comprises a guide rail, a synchronous belt, a driving belt wheel and a driven belt wheel. The two ends of the synchronous belt are connected with the driving belt wheel and the driven belt wheel respectively. The synchronous belt is connected with a printing head fixing base. The lower portion of the fixing base is connected with a sliding block. The sliding block is connected with the guide rail. The fixing base is provided with a printing supply feeding motor. A left connecting column and a right connecting column are arranged on the fixing base and located on the left side and the right side of the printing head fixing base respectively. The middle of the synchronous belt is broken, so that a left connecting end and a right connecting end are formed. The left connecting end is connected with the left connecting column. The right connecting end is connected with the right connecting column. The printing head walking structure of the 3D printer is simple; the tension degree of the synchronous belt can be adjusted conveniently, the adjustment precision is high, the service life of the synchronously belt is prolonged, and both use cost and maintenance cost are reduced; the position of the synchronous belt is fixed reliably, looseness is unlikely to occur after the tension degree is adjusted to be proper, the movement smoothness and movement reliability of movable components are kept, and the requirement for precise control over the movement of the components can be met.

The cobblers last has two sections (1,2) with a fixing allowing the sections to move between extended and retracted positions, with the extended position being the working position. The fixing has a stop pin (3) which is adjustable to vary the spacing. The adjuster surfaces (7,12) can be angled. The stop can have a spring (6) to prevent retraction.

The invention provides an underground water drawing device, and belongs to the technical field of underground water drawing. The underground water drawing device comprises a water pump used for providing power, a water pump control box arranged on the water pump, a transmission case used for being connected with the water pump, a water inlet formed in the transmission case and a water outlet formed in the transmission case, and further comprises a connecting shell used for connecting and fixing the water pump to the transmission case; a fixing block is arranged on the lower side of the connecting shell, a damping base is fixedly arranged on the lower side of the water pump, the other end of the damping base is connected with the fixing block, and the damping base is used for offsetting shake generated by the water pump. According to the underground water drawing device, shake generated by the water pump can be absorbed and consumed by the damping base, internal parts of the water pumpand the transmission case are protected against damage, and thus the service life is greatly prolonged.

The invention discloses a walking beam furnace. The walking beam furnace comprises a furnace body, a conveying device and a heating device; the conveying device at least comprises a conveying table, a horizontal moving mechanism moving the conveying table in the horizontal direction and a lifting mechanism lifting the conveying table in the vertical direction, wherein the horizontal moving mechanism is connected under the conveying table and is movably connected to the lifting mechanism in a linear mode in the horizontal direction; and supporting tables are arranged in the furnace body and are arranged on two sides of the conveying table in parallel. According to the walking beam furnace, the conveying device is matched with a supporting structure in the furnace body to transfer steel pipes in a circulation mode of lifting, horizontal moving and laying down.