5results about How to "Controlled contraction" patented technology

The invention discloses shaping equipment for mechanical casting parts, and particularly relates to the technical field of mechanical casting, the shaping equipment comprises a shaping table, a grinding frame is fixedly mounted on the shaping table, a grinding motor is mounted on the grinding frame, a rod grinding knife is fixedly mounted at the output end of the grinding motor, and a rotating motor is fixedly mounted on the shaping table; a rotating shaft is fixedly installed at the output end of the rotating motor, a placing frame is fixedly installed at the top end of the rotating shaft, lifting control tables are fixedly installed at the two ends of the placing frame, hydraulic rods are installed in the lifting control tables, a piece carrying control mechanism is fixedly installed on the hydraulic rods, and a rotating shaft fixing mechanism is installed on the shaping table. According to the device, multiple sets of machined parts can be machined at the same time, the inner diameter faces and the outer diameter faces of the machined parts can be polished at the same time, feeding and discharging operation can be conducted continuously and circularly, and the machining efficiency is greatly improved.

This invention relates to the field of medical high-fidelity training model technology, and discloses a multi-vascular network biomimetic hemostasis model and method for junctional wounds. The model includes a biomimetic model, a blood bank system, a control system, and a temperature control unit. A biomimetic multi-vascular network is embedded in the junction area of ​​the biomimetic model, and a biomimetic wound opening is provided at the corresponding position of the biomimetic multi-vascular network. The input end of the biomimetic multi-vascular network is connected to the output end of the blood bank system, and the output end of the biomimetic multi-vascular network is located inside the biomimetic wound opening. The temperature control unit is located at the input end of the biomimetic multi-vascular network. A pressure sensor is provided in the biomimetic wound cavity wall of the biomimetic wound opening, and hemostatic material is filled inside the biomimetic wound opening, with the hemostatic material in contact with the pressure sensor. The control terminal of the control system is electrically connected to the blood bank system, the temperature control unit, and the pressure sensor. This invention can realistically simulate the bleeding process of penetrating and blind-tube injuries in the junctional wound of the simulation model, facilitating simulation training.

This invention discloses a deep foundation pit support structure on a slope, comprising: a vertically arranged transverse cast-in-place pile group; longitudinal cast-in-place pile groups at both ends of the transverse cast-in-place pile group near the bottom of the slope; two longitudinal cast-in-place pile groups perpendicular to the sides of the transverse cast-in-place pile group; both the transverse and longitudinal cast-in-place pile groups consist of several vertically arranged cast-in-place piles; the tops of the transverse cast-in-place pile group and the two longitudinal cast-in-place pile groups are connected to each other by a capping beam; the capping beam has a bracing at one end of its two opposite short sides and the end furthest from its long side; corner braces are provided between the two short sides and the long side of the capping beam; one end of each corner brace is connected to the middle of the short side of the capping beam, and the other end is connected to the long side of the capping beam; the end faces of the two short sides of the capping beam are connected to one end of an end support through a head plate; the other end of the end support cooperates with a support seat set in the slope; the end support has a set inclination angle; and oblique end supports are provided on the capping beam to transmit eccentric loads and maintain the external stability of the foundation pit.

The invention relates to a handheld aesthesiometer, comprising a gas lung connected with intermediation from first valve means to a source of gas and comprising an expandable cavity intended to house a volume of gas in a loading phase of the aesthesiometer; an outlet nozzle connected to the gas lung with intermediation from second valve means and suitable for directing a puff of the volume of the gas housed in the gas lung in a firing phase of the aesthesiometer; and a mechanism to ensure in the aforementioned firing phase of the aesthesiometer the release of the puff of the volume of gas contained in the gas lung in the direction of the outlet nozzle by means of a controlled contraction of the expandable cavity of the gas lung in order to ensure a substantially constant outlet pressure.

The utility model discloses a window breaking baton and relates to the field of police instruments, the window breaking baton comprises a baton body, a window breaking assembly is arranged at one end of the baton body, a protection assembly is arranged at the end, close to the window breaking assembly, of the outer surface of the baton body, and through cooperation of a pressing piece, a first insertion rod, a second insertion rod and an extension spring, external length and contraction of two movable clamping blocks are controlled; the inserting rod is clamped through the movable clamping block, the conical block is installed at one end of the stick body through locking of the inserting rod and the movable clamping block, the conical block can be conveniently disassembled and assembled in the using scene, window breaking operation is conducted through the window breaking cone and the window breaking ball on the outer surface of the conical block, and using is convenient; and through cooperation of a pressure spring and a fixing disc, a fixing barrel is pushed out, so that a pressing piece is shielded and protected, and the situation that in the window breaking operation process, the pressing piece moves due to collision, then locking of a conical block and an inserting rod is influenced, and use of the conical block is influenced is avoided.