45results about How to "Good for inspection and maintenance" patented technology

The invention discloses an easy-to-install numerical control fan, which comprises a casing, a fan blade, a moving block, a casing, a rear cover for installation, a drive motor, a mounting pin shaft, and a clamping shaft. Groove and rear groove, the bottom of the shell is fixedly installed with an organic casing, the bottom of the casing is fixedly installed with a bottom plate, both sides of the casing are located inside the bottom plate and are provided with travel grooves, the inner side of the rear groove can be The installation back cover is disassembled and installed; the present invention installs a moving block that can move, and installs a mounting pin with a connecting spring in the moving block, and can directly align the mounting pin according to the mounting hole position on the mounting surface The connection hole on the installation surface can make the installation pin shaft directly enter the installation hole through the action of the connection spring to complete the installation. Compared with the traditional non-movable installation block, the fan does not need to move the fan itself during installation. The installation can be completed by directly moving the moving block, which is convenient for installation.

The invention provides a metering device secondary circuit detector and a detection method thereof. The invention discloses a detector capable of rapidly judging whether the metering device secondary circuit has abnormal wiring. The detector comprises a secondary circuit line clamp, a test reference signal generation unit, a test result signal sampling unit, a test result signal testing unit and a display unit. The detector adopts intersectant controllable alternating-current test reference signals to obtain test result signals of each phase wiring by comparing the obtained signals with nominal values to determine the phase with a wiring error and the error type thereof. There is no need to load the detector by switching on the current or investigate the detector wine-by-wire by taking the wires out and switching off the current. The detector can rapidly locate wiring errors in energy meters such as three-phase three-wire meters, and determine error types of the wiring errors. The detector has the advantages of being simple in operation, time-saving and labour-saving.

The invention belongs to the technical field of railway signal construction. In order to solve the technical problems of serious crossing of various cables, chaotic construction procedures, long construction period and low work efficiency in the existing railway signal indoor construction, a method for improving the construction process of the railway signal indoor is provided. Including the following steps: Step 1, indoor cabinet layout, Step 2, planning cable routing, drawing a construction path diagram of cable routing, Step 3, installing cable brackets, Step 4, indoor cable layout and fixing, Step 5, tidying up Factory wiring, arranging the cables from the computer room to the console, step 6, installing the cable tray, step 7, cable introduction, step 8, first-time termination and cable fixing, step 9, second-time termination and cable fixing, steps 10. The cable is connected to the lightning protection distribution cabinet, step 11, indoor equipment lightning protection and grounding, step 12, laying indoor copper foil, step 13, laying static floor, indoor signs. The invention improves construction efficiency and saves construction cost.

The invention relates to a combined adjustable cable support. The combined adjustable cable support comprises a fixing part and at least one group of support parts, wherein the fixing part comprises a cross rod, nuts and a deformation alarm; the deformation alarm comprises a deformation sensor, a power supply, a controller, an alarm and a casing; the deformation sensor is mounted in the middle of the cross rod; the power supply and the controller are mounted in the casing; the alarm is mounted outside the casing; the deformation sensor, the power supply and the alarm are electrically connected with the controller; each support part comprises a hanging rod support, a cable support and a sleeve; the cable support comprises a supporting plate and reinforcing ribs; a mounting hole is formed in one end of the supporting plate, and a blocking column is arranged on one surface of the supporting plate; an insertion hole is formed in the side surface of the sleeve; the supporting plate is fixed in the insertion hole through a plug pin; a positioning hole is formed in the sleeve; fixing holes of a mounting positioning pin and a spring are formed in the side surface of the sleeve; the hanging rod support comprises a vertical rod and a base plate with an adjusting hole; external threads are formed at the upper end of the vertical rod, and internal threads are formed at the lower end of the vertical rod. The combined adjustable cable support can effectively solve the problems that the angle adjustment of the cable support is inflexible, and increasing cable supports during the later period is difficult.

The invention relates to an automatic control system of a land leveler. The system comprises a main body, wherein a control chamber is welded to an outer wall of one side of the main body, a directional antenna, a positioning antenna and a positioning and orienting terminal device are arranged in the control chamber, and an outer wall of one side of the control chamber is connected with a controlchamber door through a lock body. The system is advantaged in that by arranging a first positioning antenna sensor, a second positioning antenna sensor and an inclination angle sensor, a scraper can be positioned, so the land leveler can level a to-be-leveled surface with longitudinal and transverse gradients, by arranging a USB interface and an operation screen, the vertical position of the scraper can be automatically adjusted according to an imported model, an application range of the land leveler is expanded, and applicability of the land leveler is enhanced, by setting three-dimensional design model display of the operation screen, according to graphical and three-dimensional information reference, an operator can visually know the flat ground state information, and construction is rapid.

A panel mount connector includes a housing that mounts to a panel from a terminal side of the panel and a terminal module that is configured to be supported by and inserted in a channel in the housing from a cable side of the panel. A secondary piece can be used to secure the terminal module to the housing and provide sufficient structure robustness while allowing for ease of assembly and disassembly.