3results 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.

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.