7results about How to "Time-consuming and labor-intensive solution" patented technology

This utility model relates to the field of urban rail vehicle component processing technology, and discloses a bending and forming device for aluminum alloy parts of urban rail vehicles. The device includes a frame, a material support platform fixedly mounted on the upper end of the frame, a downward hydraulic rod fixedly mounted on the upper end of the frame, and a downward pressure plate fixedly connected to the lower end of the hydraulic rod. A rotating bending hydraulic rod is mounted on the lower end of the frame, and a bending plate is rotatably connected to the upper end of the hydraulic rod. A switching mechanism is provided inside the downward pressure plate, which changes the concave shape of the material by switching the shape of the contact point with the material. This bending and forming device for aluminum alloy parts of urban rail vehicles, by setting a switching mechanism inside the downward pressure plate and using a switching motor to drive the central shaft to rotate, can easily switch the contact between the arc-shaped contact rod and the right-angle contact rod with the material, thereby changing the concave shape of the material. Compared with traditional devices, this eliminates the need to replace the entire contact component or even the mold.

The utility model relates to the technical field of building decoration, and discloses a ceiling structure convenient to disassemble and assemble, which comprises six suspenders, a keel frame, six threaded holes and a metal plate, the tops of the suspenders are connected with a wall body through expansion bolts, the keel frame is movably connected to the bottoms of the suspenders, and the threaded holes are formed in the top of the keel frame. Through cooperative use of the threaded hole, the metal plate, the mounting groove, the clamping groove and the positioning assembly, the push plate moves to drive the rotating plate to rotate around the positioning rod as the center, the rotating plate rotates to extrude the inclined surface on the extrusion groove, then the extrusion plate can be driven to move, and the extrusion plate moves to drive the clamping block to be separated from the clamping groove. The metal plate can be rapidly disassembled subsequently, and the problems that when a suspended ceiling is installed, the metal plate is directly fixed to the keel through screws or rivets, when a room needs to be disassembled and decorated, a plurality of self-tapping screws and rivets need to be disassembled with the help of tools, and the process is time-consuming and labor-consuming are solved.

This utility model discloses a backflush device suitable for plate-fin heat exchangers in air separation cold boxes, including low-pressure and high-pressure plate heat exchanger backflush assemblies. The low-pressure assembly includes a first purge vent valve after the molecular sieve and a nitrogen pressurization valve at the top of the lower tower (connected to the emergency nitrogen pipeline network); the high-pressure assembly includes a main pipeline control valve at the compressor outlet, a second purge vent valve after it, and a backflush inlet branch pipe with a root valve before the main pipeline control valve (connected to the pipeline before the high-pressure air outlet throttling valve of the heat exchanger); this device eliminates the need for cold box sand removal, removes impurities through reverse pressurization and purging, solves the blockage problem, shortens start-up time, reduces energy consumption, and improves the safety and economy of the air separation unit.

The application provides a high-doped waste gypsum body pipe resistance simulation prediction method and relates to the technical field of mining filling. The method regards the high-doped waste gypsum body as a composite flow which is composed of a tailings cement slurry continuous phase and a waste rock discrete phase, determines rheological parameters of the tailings cement slurry and basic parameters of the waste rock, uses a viscous flow model to simulate the tailings cement slurry, discriminates whether the fluid is laminar flow or turbulent flow through a Reynolds number, further selects a corresponding viscous flow model, combines the rheological parameters of the tailings cement slurry to define the fluid by using a Herschel-Bulkley rheological model, simulates the waste rock, and finally bidirectionally couples simulation to predict the pipe resistance. The method can simulate the high-doped waste gypsum body, solves the problems that the traditional rheological test result is inaccurate, the pipe resistance calculation method using the theory is inaccurate, and the filling ring pipe test method is time-consuming and labor-consuming, can more simply obtain a relatively accurate result, and has the popularization and application value.

The utility model discloses a kind of adjustable puffed feed high-efficiency extruding device, including support and feed extruding body, the feed extruding body is fixed on the support, further including material guiding hopper, the material guiding hopper is fixed at the discharge port of the front end of the feed extruding body, the front end of the feed extruding body is fixed with connecting plate, connecting plate is fixed with link frame, the one side of the link frame is driven by power and has one-way screw rod and rotates, one-way screw rod is sleeved with slider, and the slider is fixed with intermediate frame;In the adjustable puffed feed high-efficiency extruding device, by setting multiple extruding templates of different aperture and installing on mounting plate, one-way screw rod is rotated using power drive, slider, intermediate frame and mounting plate are moved along vertical direction, so that the switching of different aperture extruding templates on mounting plate is realized, and then entire template is manually replaced without staff, operation process is simplified, time and manpower are saved.

This utility model discloses a plate-type radiator, comprising: a radiator body including a heat dissipation base plate, side plates, a cover plate, an inlet pipe, and an outlet pipe, wherein the side plates are located on both sides of the heat dissipation base plate, the cover plate is located at the upper and lower ends of the heat dissipation base plate, and a heat dissipation pipe is provided at the connection between the inlet pipe and the outlet pipe; and a disassembly assembly, provided at the connection between the cover plate and the heat dissipation base plate, including a slot formed on the inner side of the heat dissipation base plate, and a positioning groove formed on the inner wall of the slot, which can solve the problem that when the cover plate is disassembled, it is necessary to loosen the bolts one by one with wrenches or other tools, which is time-consuming and laborious, especially in confined spaces or high-frequency maintenance scenarios where efficiency is low; at the same time, frequent disassembly and assembly can easily lead to wear of bolt threads, causing loosening or even failure of the connection, especially in industrial environments with high dust concentrations where the cover plate needs to be cleaned frequently, and traditional bolt installation methods can hardly meet the needs of rapid disassembly and assembly.

The utility model belongs to the technical field of fluid machinery, concretely relates to a drawer type filter device of electrical control cabinet air conditioner, is installed on electrical control cabinet air conditioner, is used for filtering the air intake of electrical control cabinet air conditioner, including air intake cover and filter screen frame, the electrical control cabinet air conditioner is provided with the installation port, the bottom both sides of installation port are rotatoryly installed in the bottom of air intake cover, the top wall of air intake cover is arc, and is pasted with the top of installation port, one side of air intake cover is provided with air intake, the other side is provided with air outlet, air intake is located in the side of air intake cover away from electrical control cabinet air conditioner, the bottom of installation port is provided with drawer port, filter screen frame is inserted in air intake cover through drawer port, and is clamped in the air intake side of air intake cover, in this application, filter screen frame is drawer type installation, can be conveniently disassembled, so as to clean filter screen fast, conveniently, save time and effort, and the practicality is high.