70results about How to "Guarantee work reliability" patented technology

An electronic needle selecting mechanism of a passive multi-arm device belongs to the technical field of textile machine and comprises a signal supply device and an execution device that consists of a first transverse needle and a second transverse needle; the signal supply device comprises a bracket, a group of electromagnetic valves and a group of transverse needle actuating devices; the amountof the group of the electromagnetic valves is equal to the total amount of the first transverse needles and the second transverse needles; all electromagnetic valves are arranged in the length direction of the bracket and used for actuating the transverse needle actuating devices; the amount of the group of the transverse needle actuating devices is equal to the total amount of the first transverse needles and the second transverse needles; and all transverse needle actuating devices are arranged on the bracket, connected with the electromagnetic valves and matched with the first transverse needles and the second transverse needles, thus actuating the first transverse needles and the second transverse needles. The electronic needle selecting mechanism prolongs the service life of the signal supply device, can ensure working reliability, stability and adaptability of the signal supply device, is beneficial to reducing usage cost, and simplifies the whole structure.

The invention discloses a flying rod sheet fixing seat, a flying rod sheet fixing structure and a cavity filter. The flying rod sheet fixing seat comprises a base and two side plates connected to theleft side and the right side of the base; a notch is formed in the front side of the base; a left column body and a right column body spaced from the two side plates are connected to the left side andthe right side of the notch of the base respectively; a rear column body located between the left column body and the right column body is connected to the rear side of the notch of the base; the topends of the two side plates, the left column body, the right column body and the rear column body are connected to a top plate; vertical sliding grooves which correspond to the notch and are in sliding fit with installation ribs are formed among the left column body, the right column body and the rear column body; vertical sliding faces are formed on the left column body, the right column body and the rear column body respectively; at least one set of protruding parts located at the same height are arranged on the vertical sliding faces of the left column body, the right column body and the rear column body in a protruding mode; and at least one set of protruding parts are elastically extruded outwards by the installation ribs. With the flying rod sheet fixing seat, the flying rod sheet fixing structure and the cavity filter adopted, the phenomena that a flying rod sheet fixing structure is difficult to install or even cannot be installed and shakes after being installed can be solved.

The invention discloses a method for uniformly heating the high-frequency remelted structure of the water-cooled tube row coating, and relates to the technical field of coating preparation. The method for uniformly heating the high-frequency remelting water-cooled wall pipe row structure includes the following steps: the first step: preparation work, sandblasting the heating surface of the pipe row, the second step: fixing the pipe row, and preparing The good tube row is fixed on the surface of the conveying device, and the heating surface of the tube row is flame-sprayed with self-fluxing alloy. The third step: fix the spray gun bracket at the entrance of the induction coil, and fix the spray gun nozzle on the surface of the spray bracket above the tube row. Make sure that there is a nozzle above the top of each tube. The height of the nozzle is exactly at the gap between the high-frequency coil and the tube row. By spraying high-pressure air to the top of each tube of the tube row, the local temperature will be properly lowered, thereby improving the overall tube row temperature. The consistency of remelting on the coating surface can effectively improve the quality of high-frequency induction remelting, so that the service life and working reliability of the water-cooled wall tube row can be guaranteed.

The invention relates to a bonding bolt mechanism for fixing an automotive wiring harness bonding terminal. The upper part of a bonding bolt is a screw cap, the middle part of the bonding bolt is a rod shank, and the lower part of the bonding bolt is a stud, wherein the rod shank at the middle part is sleeved with a spring washer and a flat washer; and two axially-symmetrical side faces of the stud are flat planes, and the lower end part of the stud is a reverse cone frustum of which a reverse circular conical surface is evenly provided with three oblique grooves and the three oblique grooves are axial grooves. In the bonding bolt mechanism, the oblique grooves at the lower end of the stud of the bonding bolt and a stud structure are utilized to extrude and cut paints on threads in projection welding nuts without manually scraping the paints and coating vaseline, thus not only ensuring the working reliability of the bonding, but also greatly simplifying the assembly technology, and preferably solving the defect of time and labor waste in the existing bonding technology.

The invention discloses a well testing retaining fork, which belongs to the technical field of well testing construction tools. The first fixed seat and the second fixed seat are fixed on the installation section, and the rotating shaft includes a positive thread section, a first optical axis section, a knurled section, a second optical axis section and a reverse thread section in turn, and the knurled section is located on the first optical axis section. Between the shaft section and the second optical axis section, the rotation shaft runs through the first fixed seat and the second fixed seat, the positive thread section is threaded with the first movable block, and the reverse thread section is threaded with the second movable block, The first movable block is slidably connected to the installation section through the first slider, and the second movable block is slidably connected to the installation section through the second slider. The invention is simple in structure and reasonable in design, can conveniently and flexibly clamp well testing instruments of various sizes on the blowout preventer nozzle, has strong flexibility, and can greatly reduce labor intensity.

The invention discloses a single-hoisting-ring hoisting prevention device and belongs to the technical field of oil drilling equipment. The single-hoisting-ring hoisting prevention device comprises stopping blocks arranged in lower slots of hoisting lugs, and is characterized in that the stopping blocks are fixed in the lower slots through first rotating shafts and provided with sensing components for monitoring the positions of hoisting rings, and trigger blocks are arranged on the inner walls of the lower slots; and the device further comprises a single-hoisting prevention component which comprises a controller, and the controller is connected with the sensing components in a radio mode and used for receiving signals sent by the sensing components to control starting and stopping of traveling blocks. The device can accurately judge whether hoisting rings on the two sides of a lift sub enter hoisting lug holes or not and then send commands for hoisting or non-hoisting, single-hoisting-ring hoisting can be effectively prevented, and hoisting safety is improved.

The invention discloses a high-low shifting column change-over switch which comprises an installation board, a change-over switch, a guide rod, and a high-low shifting column disc. The change-over switch is fixed on the installation board, the guide rod is connected with the installation board, the high-low shifting column disc can slide relative to the guide rod, the guide rod transmits requiredrotation relation to the high-low shifting column disc and is in contact with the change-over switch, and the change-over switch comprises a shell, two contact bridges, a shifting fork, a first contact and a second contact. The high-low shifting column change-over switch has the advantages of simple and small structure, practical function, accurate in-place action and higher-capacity contacts, and powerfully ensures the working reliability of an immersed vacuum on-load tapping switch; and moreover, the used parts have good standardization and interchangeability and can be processed easily, which is favorable to the batch production of the high-low shifting column change-over switch.

The present invention proposes a remote sensing camera FPGA configuration program centralized management, up-note update and dynamic refresh method and circuit, the method includes centralized configuration management, up-note update, dynamic refresh, solidified storage, non-volatile rewritable storage Function, it can configure and refresh the on-board SRAM FPGA of each functional circuit in the entire device. Through centralized management of each SRAM-type FPGA's pre-launch solidified program and above-mentioned storage program, the SRAM-type FPGA with the same function only needs to store one copy of program data, and the refresh data is also extracted from the program storage area to refresh the FPGA. Flexible setting of multi-chip FPGA loading configuration rules at the beginning of power-on, and the loading configuration sequence is determined according to the function priority and master-slave relationship. The definition focuses on the loading method to efficiently utilize the limited bandwidth of the satellite-ground link, flexibly and reliably upload the program, and effectively complete the update and loading of the new algorithm program.