6results about How to "Fast maintenance" patented technology

The utility model discloses a water conservancy facility guardrail which comprises guardrail supporting rods, auxiliary supporting rods are fixedly installed at the positions, close to the lower ends, of the outer sides of the guardrail supporting rods, and a steel barbed rope frame is fixedly installed between the upper ends of the guardrail supporting rods. According to the water conservancy facility guardrail, the water conservancy facility guardrail is installed more stably through the guardrail supporting rod, the auxiliary supporting rod, the steel barbed rope frame and the guardrail separation net and can be detached, replaced and maintained, when one of the guardrail supporting rod, the steel barbed rope frame and the guardrail separation net is damaged, the guardrail supporting rod, the steel barbed rope frame and the guardrail separation net can be detached and replaced independently, and the whole guardrail does not need to be replaced; the guardrail supporting rods and the auxiliary supporting rods enable the water conservancy facility guardrail to be firmer and more stable after being installed, the steel barbed rope frame can be disassembled and assembled between the upper ends of the guardrail supporting rods, people are prevented from turning over the water conservancy facility guardrail, and the water conservancy facility guardrail is convenient to maintain. The guardrail isolation net can be disassembled and assembled between the guardrail supporting rods, and the isolation effect is achieved.

This invention relates to the field of centrifugal fans, specifically disclosing a portable energy-saving electric fan and its usage method. The fan includes a housing with a grille and a fan installed inside the housing. The fan's outlet is aligned with the grille. The top of the housing has an opening through which the fan can extend. The fan's outer casing is divided into a fixed part and at least one movable part. The movable part is movable relative to the fixed part. When the movable and fixed parts are separated, maintenance tools can be inserted into the casing to inspect the inner wall and impeller. This invention allows the fan to be lifted from the housing for easy maintenance. Furthermore, the fan's outer casing can be divided into a fixed part and at least one movable part, and the fixed and movable parts can be fixed to the fixed part without connecting parts, only by a retaining element inside the housing, facilitating maintenance and return to its original position after maintenance.

The embodiment of the present application provides a method, device, equipment and storage medium for distributing and processing electronic credentials, wherein the method includes: determining process pipeline information corresponding to the electronic credential type from a preset process library; the process library includes at least one process pipeline information, each process pipeline information includes a sub-process, and each sub-process in each process pipeline information has an execution logic relationship; according to the execution logic relationship between each sub-process in the process pipeline information corresponding to the electronic credential type, the process pipeline information corresponding to the electronic credential type is executed to obtain the electronic credential corresponding to the electronic credential type; the electronic credential corresponding to the electronic credential type is sent to the second device. There is no need to write a policy class or conditional statement for the calculation logic, and there is no need to maintain the policy class or conditional statement, which reduces a lot of code development, saves code, and reduces maintenance costs; and the electronic credential can be obtained quickly.

The invention discloses a coal mine power equipment fault supervision device, and particularly relates to the technical field of power equipment.The coal mine power equipment fault supervision device comprises a protection shell, a telescopic antenna is fixedly installed on the top of the protection shell, a high-definition map display screen is fixedly installed on the front side of the protection shell, and the input end of the high-definition map display screen is connected with a management terminal controller; the output end of the management terminal controller is connected with a buzzer. Through the arrangement of the high-definition map display screen, the management terminal controller, the control panel, the equipment end management controller, the prompt bracelet and other structures, the system can be connected with power equipment in a mine, the operation condition of the equipment can be judged through video images, current, voltage and temperature abnormities, and if the abnormities occur, the equipment can be prompted to work. The system can inform the staff at the first time and confirm the position of the fault equipment, so that the maintenance is timely, the troubleshooting speed is high, the maintenance speed is also high, unified management of the equipment is facilitated, and the actual use effect of the system is relatively ideal.

A silicon wafer top tooth structure and substrate carrying device for an aluminum boat are disclosed, relating to the field of semiconductor transport vehicle technology. The silicon wafer top tooth structure for an aluminum boat includes: a main tooth base, which is an integrally formed structure comprising a base portion and a main tooth portion extending upward from the base portion, with a positioning platform at the top of the base portion; a secondary tooth body, detachably connected to one side of the main tooth base via countersunk fasteners; a clamping gap for holding the silicon wafer is formed between the secondary tooth body, the positioning platform, and the main tooth portion; the secondary tooth body has at least two conical first countersunk holes, and at least two conical second countersunk holes are correspondingly formed on the opposite side of the main tooth portion; the countersunk fasteners penetrate through the first and second countersunk holes, and the two sides of the countersunk fasteners are coplanar with the outer surfaces of the secondary tooth body and the main tooth base. This utility model enables rapid replacement of partially damaged components, avoiding the scrapping of the entire component due to partial damage in traditional integral top teeth, and significantly reducing replacement costs.

The invention belongs to the technical field of rail transit, and particularly relates to an LED signal machine based on rail transit and an assembly thereof, comprising a signal lamp body, a column, a mounting assembly and a filtering assembly; the light filtering assembly comprises a mounting plate and a light filtering seat fixedly mounted on the mounting plate, a light filter lens is mounted on the surface of the light filtering seat, and an annular seat connected with the mounting hole in a matched manner is arranged on the light filtering seat; an annular shell is fixedly connected to the signal lamp body, an airflow channel is formed in the light filtering base, an air guide pipe matched with an air outlet of the airflow channel is fixedly connected to the outer wall of the annular shell, and a plurality of air outlet holes are formed in the surface of the annular base. The light filtering assembly is detachably connected with the signal lamp body through the mounting plate, the locking frame and other structures, directional flow can be formed by natural wind or forced airflow through the airflow channel arranged in the light filtering base, the wind scooper and the wind guide pipe arranged on the annular shell, and the light filtering assembly has the advantages of being efficient in heat dissipation, automatic in cleaning and convenient and fast to maintain.