34results about How to "Reduce maintenance and replacement" patented technology

The invention discloses an overground hydrant which leaks less water after colliding, is more convenient to repair and has lower repairing cost. The overground hydrant comprises a hydrant body, an anti-collision section, a valve body, a water pressure gauge, a floating ball valve and a tappet, wherein an exhausting valve is arranged at the top of the hydrant body; the anti-collision section is arranged between the hydrant body and the valve body; an annular broken groove is formed in an outer side wall of the anti-collision section; a water leakage valve is arranged at a side part of the top of the valve body; the water leakage valve is communicated with an inner cavity of the anti-collision section through a water leakage channel; the water leakage channel comprises an upper-section water leakage channel located in a bottom flange disc of the anti-collision section and a lower-section water leakage channel located in a top flange disc of the valve body; the water pressure gauge is arranged on a side wall of the hydrant body; the water pressure gauge is communicated with the inner cavity of the valve body through a water pressure channel; the water pressure channel comprises an upper-section water pressure channel located in the side wall of the hydrant body and a lower-section water pressure channel located in the side wall of the anti-collision section; the floating ball valve is arranged in the valve body; and the bottom of the tappet stretches to the upper side of the floating ball valve.

The invention discloses an advertisement display screen for marketing, which comprises a display screen, a tool cabinet and a cabinet door. A camera is arranged at the top left end of the display screen, and a solar battery panel is arranged at the top middle of the display screen. A transparent plate is provided in the middle part of the front end, and a tool cabinet is provided on the right side of the front end of the display screen, a touch screen is provided on the outer surface of the cabinet door, and a control panel is provided at the lower end of the touch screen, and the front end of the inner cavity of the display screen is provided with a The first rotating shaft and the fourth rotating shaft, the rear end of the inner cavity of the display screen is provided with the second rotating shaft and the third rotating shaft, the left end of the inner cavity bottom of the display screen is provided with a controller and a timer, and the inner cavity of the display screen There is a memory in the middle of the bottom of the cavity, and a transformer and a voltage stabilizer are installed at the right end of the bottom of the display screen. The invention has novel structure, small space occupation, cost reduction, energy saving and multiple functions.

The invention relates to a battery pack and an electric vehicle. The battery pack comprises a cell module, a function module and a connecting member. The cell module comprises a first housing and a cell unit, the cell unit is encapsulated in the first housing, a first conductive terminal is led out from the cell unit and can be touched from the outside of the first housing. The function module consists of a second housing and a function unit, the function unit is encapsulated in the second housing and is provided with a second conductive terminal, also the second conductive terminal can be touched from the outside of the second housing, the first housing and the second housing are in detachable connection through the connecting member, when the first housing and the second housing are in connection, the first conductive terminal and the second conductive terminal can be connected, and when the first housing and the second housing are separated, the first conductive terminal and the second conductive terminal can be separated. The technical proposal realizes partial disassembly and assembly of the cell module, and disassembly and assembly become more convenient. The invention also relates to an electric vehicle equipped with the battery pack.

The invention provides a quick screwing-on and screwing-off drill rod with a connector convenient to disassemble and assemble. The quick screwing-on and screwing-off drill rod comprises a rod body, amale connector and a female connector, wherein the male connector is composed of a male connector body, a male connector threaded section and a male connector connecting section; the male connector connecting section penetrates through an inner hole of the male connector threaded section to be in threaded connection with the male connector body; the male connector connecting section is provided with a male connector threaded section limiting table; the male connector threaded section is in clearance fit with a hole shaft of the male connector connecting section; the female connector is composed of a female connector body, a female connector threaded section and a female connector connecting section; the female connector connecting section is in threaded connection with a hole shaft of thefemale connector body; the female connector connecting section is provided with a female connector threaded section axial limiting table; the female connector threaded section is located between the female connector threaded section axial limiting table and the female connector body; the female connector connecting section limits the female connector threaded section in the circumferential direction; and the male connector threaded section is in threaded connection with a hole shaft of the female connector threaded section. Quick replacement of quick-wear parts such as the drill rod connectorcan be achieved on a construction site, quick screwing-on and screwing-off are achieved, and the quick screwing-on and screwing-off drill rod is suitable for drilling at a higher rotating speed.

The invention discloses a dust removal system. The dust removal system comprises a cyclone dust remover and a bag type dust remover, wherein the bag type dust remover comprises a plurality of dust removing barrel bodies and the dust removing barrel bodies are distributed around the periphery of the cyclone dust remover. The system disclosed by the invention has the advantages of compact structure,convenience for conveying and transporting ash, small occupied area, capability of effectively preventing dust particles from being deposited to block pipelines, capability of effectively balancing pressure oscillation of a blast-furnace gas pipe network and capability of effectively reducing pipeline brushing, long service life, small operation noises, flexibility in hoisting and overhauling andsafety and reliability.

The invention discloses a split type adjustable pot support and a gas stove. The split type adjustable pot support comprises a frame body and pot lugs. The pot plugs are evenly arranged in the circumferential direction of the frame body. Each pot lug comprises a fixed plate and a sliding plate. Each sliding plate is arranged on the corresponding fixed plate and is used for adjusting the size of the pot support. In this way, the split type adjustable pot support can be applicable to pots of different shapes and sizes; the flame area can be controlled by adjusting the height of the pot support,and the thermal efficiency is improved; and the probability that a pot falls off because of inclination is reduced, and therefore, cooking is safer. The pot support is of a splicing structure, parts can be replaced or repaired after being damaged, and furthermore, the extra cost caused by using a support for small pots is omitted.

The invention discloses an assembled medical trolley with three occluded sides at the bottom and an inserted side at the same time, which comprises a top plate, a left side plate, a right side plate,a front face frame, a back plate and a bottom plate, wherein the left side plate and the right side plate are inserted between the front face frame and the back plate in an inserted occlusion structure. Any three of the front face frame, the left side plate, the right side plate and the back plate are occlusion pieces, and the other is the insertion piece; the lower end of the occlusion piece is fixedly connected with the bottom plate through a lateral occlusion structure, the lower end of the insertion piece and the bottom plate are limited in the vertical direction through a card inserting structure, and the top plate is installed at the top ends of the left side plate, the right side plate, the front face frame and the back plate. Various parts are connected and assembled without usinga large number of connecting parts, the assembly efficiency is high, the connection is stable and firm, and the disassembly and assembly are simple and convenient.

The invention discloses an electric heater protection device, an air conditioning unit and an electric heater protection method thereof. The device comprises a fuse and a temperature limiter which arearranged on a main circuit of an electric heater; a control switch is used for controlling the power-on or power-off of the main circuit of the electric heater according to the control signal outputted by a main board; the main board is respectively connected with the control switch and an optocoupler for outputting the control signal to the control switch; when the electric heater does not worknormally, if a low level signal outputted by the optocoupler due to conduction is detected, a first prompt message for controlling the switch failure is issued. The device can solve the problems thatit is not achieved that the temperature limiter and a fuse body can effectively disconnect the main circuit of the electric heater and can detect the on and off of the electric heater, and the protection reliability is low, thereby improving the protection reliability.

The invention discloses an amorphous reactor, which comprises a casing, an amorphous iron core is arranged in the casing, the amorphous iron core is fastened by a hoop, a coil is arranged on the amorphous iron core, and a first contact is arranged on the coil and the second contact, the first contact and the second contact are drawn from the upper side of the coil; the first contact includes a vertical part and a bent part, the bent part is drawn out from the coil, and the vertical part is arranged at the bent part On the folding part, the distance from the vertical part to the center line of the amorphous core is equal to the distance from the second contact to the center line of the amorphous core; both the vertical part of the first contact and the second contact are provided with copper row, the copper row protrudes from the corresponding position on the shell; in the amorphous reactor of the present invention, both the first contact and the second contact are drawn from the upper side of the coil, which reduces the overall space ratio, and its symmetrical arrangement It is convenient for installation and shell design; the same type of copper bar can be used on the first contact and the second contact, which reduces the cost and facilitates maintenance and replacement in the future.