10results about How to "Realize replacement and maintenance" patented technology

The utility model discloses an explosion-proof voltage transformer, relates to the technical field of voltage transformers, and aims to solve the problems that the outside of an insulating tube of the conventional voltage transformer is not protected, the insulating tube is easily damaged by external force, the phenomena of faults and pits are avoided, explosion is easily caused, and the explosion-proof performance is poor. A secondary winding main body is arranged at the upper end of the iron core main body, an upper top plate is arranged at the upper end of the secondary winding main body, and a high-voltage insulating sleeve is arranged at the upper end of the upper top plate; the protective sleeve is arranged outside the high-voltage insulating sleeve, the outer wall of the protective sleeve is provided with vent holes, the vent holes and the protective sleeve are of an integrated structure, the number of the vent holes is multiple, the protective sleeve is internally provided with a cavity, and the cavity and the protective sleeve are of an integrated structure; and the wiring board is arranged at the lower end of the iron core main body, and wiring terminals are arranged on the two sides of the wiring board and the top end of the high-voltage insulating sleeve.

The invention provides a device for automatically replacing a fixed throttling valve oil nozzle. The device comprises a sealing mechanism, a rotating mechanism, a lifting mechanism and a guide mechanism which are detachably arranged at the top of a valve body. The sealing mechanism provides a stable working environment for the rotating mechanism, the lifting mechanism and the guide mechanism; the rotating mechanism comprises a supporting frame, a worm is rotatably arranged at the bottom of the supporting frame, a worm gear is connected to the worm in a meshed mode and arranged on a union nut in a sleeving mode, the union nut is in threaded connection with the valve body, and the valve rod and the oil nozzle assembly are arranged on the lower side of the union nut. The lifting mechanism comprises a rack arranged in the sealing mechanism, a lead screw is rotatably arranged on the rack, and the lead screw is used for driving the supporting frame to move in the height direction, so that a valve rod and an oil nozzle assembly on the lower side of the union nut are driven to ascend and move out of the valve body; the guide mechanism comprises guide pins symmetrically arranged on the rack, and the guide pins are connected with the lower portion of the supporting frame in an inserted mode. The structure is compact, the replacement efficiency of the throttle valve oil nozzle assembly is improved, and operation is convenient.

The utility model discloses a kind of split type faucet structure, including faucet main body, the faucet main body includes main body shell, faucet shell, and the one end of main body shell and faucet shell is detachably connected;The lateral wall of main body shell is provided with installation through-hole, and upper limit plate is welded on the inner wall of main body shell, lower limit plate, upper limit plate is located inside installation through-hole, lower limit plate is located below installation through-hole, and installation cavity is formed between lower limit plate and upper limit plate, and first bolt hole is provided on lower limit plate;The one end bottom of faucet shell is integrally formed with installation protrusion close to main body shell, and second bolt hole is provided on installation protrusion;When the main body shell of faucet shell is connected, the one end of faucet shell is inserted into installation through-hole, installation protrusion is inserted into installation cavity and makes second bolt hole and first bolt hole corresponding, and first bolt hole and second bolt hole are connected by fixed bolt between them.

The application relates to the technical field of automobile parts, in particular to a test tray and an ADAS test device. The test tray comprises a positioning module and a probe module. The positioning module comprises a supporting part and a floating mechanism, the supporting part is installed on a base through the floating mechanism, a supporting surface of the supporting part is provided with a plurality of positioning pins, and at least two of the positioning pins are different in shape. The probe module is detachably installed on the base. The supporting part provides the supporting surface for stably placing a material piece thereon; the supporting surface is provided with the plurality of positioning pins, one of the two positioning pins which are different in shape can be used for primary positioning, and the other one can be used for secondary positioning, so that the tolerance of a hole position of the material piece in a specific direction can be absorbed, the positioning precision can be ensured, and the tolerance problem of hole spacing of the material piece can be ingeniously solved. The probe module is designed to be detachably installed on the base, the maintenance and replacement of the probe are efficiently and flexibly realized, the structural stability of the test tray is avoided from being affected, and the test tray does not need to be recalibrated after replacement.

The utility model discloses a seismic mitigation and isolation support with a double-damping energy dissipation function. A traditional shock absorption and isolation support is poor in shock absorption effect and complex in replacement process. The support comprises an upper support plate, wherein a spherical crown lining plate is arranged below the upper support plate; a plane sliding friction pair is arranged between the upper support plate and the spherical crown lining plate; a sliding plate is arranged below the spherical crown lining plate, and a spherical sliding friction pair is arranged between the spherical crown lining plate and the sliding plate; a lower support plate is arranged below the sliding plate, and a plane sliding friction pair is arranged between the sliding plate and the lower support plate; and the sliding plate is connected with the lower support plate through a spiral steel damping element. The force borne by the support acts on the spiral steel damping element connected with the support, steel damping and friction damping energy consumption is achieved, earthquake loads are buffered, and damage to the support is reduced.

This invention relates to a standard device for extending the liquid circuit for easy extravehicular operation by astronauts, comprising an extension adapter and an extension housing. The extension adapter is the passive end, installed on the spacecraft cabin and launched with the spacecraft. The extension housing is the active end, installed by the astronaut after exiting the spacecraft and attached to the extension adapter. The extension adapter and the extension housing are connected mechanically, electrically, and through liquid circuits. These interfaces are all standard interfaces, and the connection method is independent of the type of liquid circuit equipment installed inside the extension housing, such as pump assemblies, valve assemblies, and working fluid replenishment assemblies. The standard device for extending the liquid circuit of this invention features standardized interface design, adaptability for astronauts operating while wearing extravehicular spacesuits, no need for auxiliary tools, simple operation, and short operation time, and can meet the requirements for pressurized, leak-free operation of the extravehicular liquid circuit.

The invention discloses a medicine cutting device which comprises a box body, and the internal space of the box body is a medicine cutting cavity with an opening in the top end; the first sliding cover is connected to the opening of the medicine cutting cavity in a sliding mode, and a mounting channel hole communicating with the medicine cutting cavity is formed in the top end face of the first sliding cover; the medicine cutting button is arranged on the mounting channel hole; the tablet cutter is installed on the bottom end face of the tablet cutting button and used for downwards extending out of the installation channel hole so as to cut off tablets located in the tablet cutting cavity. When the tablet cutting device is used, the first sliding cover slides out of the box body so that the opening of the tablet cutting cavity can be exposed, then tablets needing to be cut off are placed on the bottom end face of the tablet cutting cavity, then the box body is covered with the first sliding cover again, the opening of the tablet cutting cavity is sealed by the first sliding cover at the moment, and then the tablet cutting button is pressed down. The tablet cutting button drives the tablet cutter to move downwards to cut off the tablets in the tablet cutting cavity, then the first sliding cover slides out of the box body again, the opening of the tablet cutting cavity is exposed, and the cut tablets are taken out.

This utility model discloses an electric furnace for the thermal regeneration of molten ceramic sand, comprising a furnace body. Inside the furnace body are a first heating component, a second heating component, and a third heating component. A door is hinged to one side of the furnace body. A slide rail is fixedly connected to the inner wall of the furnace body, and the slide rail is symmetrically distributed about the bisector of the furnace body. The third heating component and the first heating component have the same structure as the second heating component. The first, second, and third heating components are located on three sides of the inner wall of the furnace body, respectively. A material rack is fixedly connected between the third heating component and the first heating component. The second heating component includes a mounting box slidably connected to the inner wall of the furnace body. A heating rod is threadedly connected to the inner wall of the mounting box, and the mounting box is movably connected to the inner wall of the furnace body. This device allows for the maintenance and replacement of individual heating rods, thereby reducing the maintenance cost of the heating rods.

According to the embedded vacuum nozzle structure and the vacuumizing method thereof, when the air tightness of a vacuum nozzle is reduced, a pressing ring is pressed downwards to drive a linkage piece to drive a clamping piece to be separated from a clamping groove in the outer side of a connecting block, and then the connecting block and a connecting pipe can be conveniently taken out of a ring shell; therefore, a worker can maintain and replace the connecting pipe and the piston assembly, and the vacuum nozzle can be replaced and maintained on the premise that the vacuum nozzle does not need to be integrally taken out of a vacuum bag.