5results about How to "Meet design standards" patented technology

A kind of sliding formwork steel bar spacing and concrete cover thickness control device, belong to the technical field of water conservancy and hydropower engineering construction, including positioning angle steel, the positioning angle steel is fixedly connected on jack crossbeam, several positioning blocks evenly arranged are connected on the positioning angle steel along its length direction, positioning hole is opened in the positioning block, the hole wall of the positioning hole is recessed to form recess, several ball bearings are arranged in the recess along its circumferential direction.The positioning angle steel and the positioning hole in the utility model are arranged to accurately control the steel bar spacing and the concrete cover thickness, at the same time, the setting of ball bearing also avoids the steel bar that is inserted into positioning hole from being jammed, to ensure that the quality of sliding formwork construction concrete meets the design standard.

An asymmetric double-leaflet curved mechanical heart valve. The application relates to an improved artificial mechanical heart mitral valve, which is closer to the natural mitral valve in terms of blood flow dynamics, effectively reduces blood reflux, is highly reliable and is suitable for all postures. The valve comprises a valve ring, a large valve leaflet and a small valve leaflet, the large valve leaflet and the small valve leaflet are respectively upwardly convex curved surfaces, the convex top curve of the large valve leaflet is matched with the concave top curve of the small valve leaflet, and the convex ridge formed by the top curve after the two are in contact forms a one-way locking ridge line; when the one-way locking ridge line is formed, the position of the shaft center of the large valve leaflet hinge pin is consistent with the position of the center of gravity of the large valve leaflet, so that the large valve leaflet is in a state of gravity balance under the support of the large valve leaflet hinge pin. The application reduces the height of the valve ring, eliminates the influence of the high valve ring or the convex structure on blood flow, adjusts the structure of the two valve leaflets, forms a more human application, and adopts a gravity balance design concept for the valve leaflet. The overall design is exquisite, and the blood flow dynamics is good.

The utility model relates to spring production technical field and disclose a kind of spring device pre-pressure pressurizing tool, including base, the base top is provided with pressurizing mechanism, the pressurizing mechanism top is provided with placing mechanism, the pressurizing mechanism includes processing station, the processing station fixedly connected in base top, the processing station inside fixedly connected with pressure sensor, the processing station top is fixedly connected with fixed link, the fixed link periphery is slidably connected with connecting frame, the connecting frame is set in pressure sensor top, when using, by setting pressurizing mechanism, when needing to carry out pre-pressure work to spring, first according to the size of spring body selects mutually matched connecting frame and limit sleeve, connecting frame is slidably connected in fixed link periphery, make connecting frame bottom and pressure sensor top mutual contact, limit sleeve is slid simultaneously from front to back to the inside of mounting frame, limit sleeve is fixed by fixed shaft.

This utility model provides a drop-proof mobile phone back cover, relating to the field of shell structure technology. It includes a back panel and a frame, the back panel and frame being integrally formed from composite materials to create the back cover. The frame has diagonal braces at its four corners, and an inner frame is located between these braces on the inner side of the frame. Several connecting parts are provided between the inner frame and the frame, dividing the shock-absorbing cavity formed between the inner frame and the frame into individual spaces. Each individual space contains a shock-absorbing pad. The diagonal braces at the four corners of the frame form buffer grooves with the frame, housing the built-in buffer pads. These absorb and disperse the impact force during a drop. The metal material does not interfere with signals and has higher strength. Together, they effectively reduce direct impact on the internal components of the mobile phone. Multiple independent shock-absorbing cavities are formed by the connecting parts between the inner frame and the frame, each containing a shock-absorbing pad, forming a single shock-absorbing system to further buffer vibrations and protect the internal structure.

The utility model relates to a self-adaptive slope-adjusting unloading block which comprises an unloading block body and a self-adaptive adjusting assembly, the bottom of the self-adaptive adjusting assembly is of a protruding spherical structure, a spherical groove is formed in the top of the unloading block body, and the bottom of the self-adaptive adjusting assembly is arranged in the groove and makes contact with the groove in a rotating mode. According to the self-adaptive slope-adjusting unloading block, the angle can be flexibly and accurately adjusted according to the actual engineering slope, the self-adaptive adjusting assembly can be used for stably and accurately responding whether the slope is corrected slightly or the slope direction is changed greatly, it is ensured that the structural slope meets the design standard, and the construction efficiency is improved. The problems of uneven stress, settlement difference and the like of a later structure caused by slope adjustment errors are effectively avoided, and the overall quality of a project is greatly improved.