50results about How to "Comply with the force characteristics" patented technology

The invention discloses a flexible loading device and method for simulating uniform stress on the surface of a cylindrical anchorage model. The flexible loading device comprises a constraint force device, an annular high-pressure loading air bag, air pipes, a flexible and retractable hoop sleeve and flexible force transfer rubber, wherein the annular high-pressure loading air bag is of an annular cylinder structure; the flexible and retractable hoop sleeve is attached to the inner ring surface of the annular high-pressure loading air bag, comprises arc sleeves, arc compressed springs, arc connecting rods and arc loading force transfer plates, and is of a cylindrical structure; the flexible force transfer rubber is attached to the inner surfaces of the arc loading force transfer plates and makes direct contact with the cylindrical anchorage model. The flexible and retractable hoop sleeve can retract inwards automatically under the loading constraint action of the annular high-pressure loading air bag, and the cross section of the model in a retracting process keeps round all along. The flexible loading device can be used for effectively simulating a radial uniform stress effect on the surface of the model in an indoor pull-out test of the cylindrical anchorage model, and the cross section of the cylindrical model in a loading process keeps round all along.

The invention relates to a damping type over discharge buffering device for a mine hoisting system. The damping type over discharge buffering device comprises a steel truss, a damping buffer and a buffering bracket, the steel truss is arranged on the mine wall of the bottom of a mine, one end of the damping buffer is connected with the steel truss, the other end of the damping buffer is connected with the buffering bracket, and a cage of the mine hoisting system falls on the buffering bracket during falling. By means of the damping type over discharge buffering device, a new over discharge prevention device is designed; the damping type over discharge buffering device is installed above over discharge prevention space at the mine bottom of the mine, the steel truss is arranged at the mine bottom, an over discharge prevention buffering device is hung on the steel truss, a damping groove is formed in a piston rod of a hydraulic cylinder, the depth size of the damping groove is changed along with stroke changes, the problem of insufficient over discharge prevention space of old mine transformation is solved, the over discharge prevention device can be additionally arranged in an old mine hoisting system, and security coefficients of mine production can be effectively improved; meanwhile, construction is simple, the construction period is short, the old-mine transformation halt period is short, and the old mine safety transformation problems are decreased as many as possible.

The invention relates to a marine supporting device for an independent liquid tank. The marine supporting device comprises a hull base (1), a heat insulation cushion block (3) and a liquid tank shell (6). An arc-shaped liquid tank saddle (4) is fixedly connected to the bottom of the liquid tank shell. The upper surface of the arc-shaped liquid tank saddle is fixedly connected with the outer surface of the liquid tank shell. The heat insulation cushion block is placed between the lower surface of the arc-shaped liquid tank saddle and the hull base. The arc-shaped liquid tank saddle is coated with an outer liquid tank heat preservation layer (5) located on the periphery of the liquid tank. The section shape of the upper surface of the hull base is identical to the section shape of the lower surface of the arc-shaped liquid tank saddle, and each section shape is a V shape with the axis of the liquid tank shell as the center line and is symmetric left and right. By the adoption of the marine supporting device, when goods such as LNG with a lower boiling point is loaded and transported, a supporting base can be tightly attached to the independent liquid tank shell all the time, and necessary vertical supporting and transverse supporting are provided.

The invention discloses a reinforcing device for a prefabricated concrete channel plate pile head. The reinforcing device comprises a pile body which comprises an upper web and wing plates on the two sides; the upper web is 120 mm in thickness; longitudinal main rebars are laid in the pile body and connected through stirrups; transverse main rebars are arranged in the pile body, and the transverse main rebars and the longitudinal main rebars are fixedly connected through stirrups in the intersecting positions; the pile head is arranged at one end of the pile body, the thickness of a pile head web is 280 mm, a plurality of dense rebars are arranged in the pile head, and the dense rebars and the longitudinal main rebars are arranged in parallel; and the longitudinal main rebars, the stirrups and the dense rebars form rebar grids which are located at the front section of the pile head, three rebar grids are arranged at the intervals of 50 mm, and two rebar grids are arranged at the interval of 100 mm, and five rebar grids are arranged in total. According to the reinforcing device for the prefabricated concrete channel plate pile head, the principles that the dense rebars are small in diameter and are densely arranged are observed, non-uniform stress generated in the vibration pile driving process can be effectively borne, construction is easy to conduct, not only can the pile head be effectively protected, but also a mass of rebars are omitted, and the cost is reduced.

A disabled pet dog aiding vehicle comprises a walking component, a supporting component and a slide adjusting component. The walking component comprises two walking modules, and each walking module comprises supporting rods and walking wheels. The supporting component comprises a supporting portion, two mounting portions and two wrapping portions, wherein the supporting portion is provided with a mounting area and a supporting area connected with the mounting area, the two mounting portions are connected with two sides of the mounting area respectively, the two wrapping portions are connected with two sides of the supporting area respectively, and each wrapping portion is connected with one mounting portion. The slide adjusting component comprises a horizontal reinforcing rod and two adjusting modules, each adjusting module is respectively connected with one wrapping portion and one supporting rod, and two ends of the horizontal reinforcing rod are connected with the two adjusting modules respectively. The disabled pet dog aiding vehicle is good in supporting and wrapping effects on pet dogs with disabled legs. Moreover, the distance between the supporting portion and the ground can be adjusted by sliding a sliding portion relative to the supporting rod to more effectively adapt to the pet dogs with different heights.

The invention relates to connecting pieces for a keel type composite shear wall. Bolt holes are formed in top flanges of the connecting pieces, the connecting pieces are connected with a frame beam through self-tapping screws, lower-end webs of the connecting pieces are connected with an upper guide rail flange of the keel type composite shear wall through self-tapping screws, and the four connecting pieces are symmetrically arranged at the upper end and the lower end of the keel type composite shear wall respectively. Compared with the prior art, the connecting pieces are simple in structure and clear in force transmission, every two connecting pieces are matched to be used, the connecting pieces are symmetrically arranged, horizontal shear force can be transmitted, vertical pressure can be released, and the loading features of the keel type composite shear wall are met.