5results about How to "Avoid reducing service life" patented technology

The utility model relates to a kind of bolt of repeatedly disassembling not easy to damage thread, including bolt body, nut group and bolt head, the nut group is threadedly connected to the outside of bolt body, bolt head is assembled in the top of bolt body, the outside of bolt body is sleeved with rubber gasket, limiting ring is assembled between the nut group and bolt head, the upper and lower ends of the limiting ring are connected with T-shaped slider, the top of nut group is provided with first annular groove, first clamping groove is embedded in the inner chamber both sides of first annular groove, first vertical groove is set in the top left and right ends of first annular groove.Repeatedly disassembling not easy to damage thread of bolt, by the T-shaped slider and first clamping groove and second clamping groove of additional, when limiting ring is self-locked between bolt body and nut group, the position of bolt body is automatically locked, so as to inhibit the loosening of bolt body, improve the stability of device overall, avoid producing alignment deviation and vibration when using.

The utility model provides a photovoltaic inverter relates to inverter technical field, including the baffle of fixed installation in the inner side of shell, the inner side fixed mounting of shell has the circuit board body, a plurality of capacitor bodies are fixedly installed to the upper surface of circuit board body, the outer side fixed mounting of capacitor body has the cooling cylinder, the outer side fixed mounting of cooling cylinder has a plurality of heat conduction sheet, the upper surface fixed mounting of baffle has the box body. In the utility model, the cooling of box body is carried out through the refrigeration end of refrigerator, can make the cooling liquid in the box body get the cooling, the cooling liquid in the box body is pumped to the cooling cylinder through water pump and is cooled to the capacitor body, can ensure the stable operation of capacitor body, avoid temperature too high and reduce the service life, cooperate with the air blowing of radiating fan can make the heat exchange of gas and heat conduction sheet, make the air of circuit board body blow, can better carry out the heat dissipation cooling, guarantee the normal use of photovoltaic inverter.

The utility model discloses a safe operation auxiliary system for railway maintenance operation, which belongs to the related technical field of railway maintenance and comprises a welding seat fixedly connected to the top of a cab of a railway maintenance operation vehicle, a protective shell fixedly connected to the top slope of the welding seat, and an out-cabin camera arranged in the protective shell. An in-cabin camera is further installed in the railway maintenance operation vehicle, the out-cabin camera is used for detecting foreign matter on a railway, and the in-cabin camera is used for monitoring the expression and action state of a driver. According to the safe operation auxiliary system for the railway maintenance operation, when the safe operation auxiliary system for the railway maintenance operation is used and the camera outside the cabin is not used, the push-pull plate can be pulled to move backwards by starting the electric telescopic rod, and the push-pull plate is matched with the meshing effect of the inverted-L-shaped toothed plate and the arc-shaped toothed ring, so that the top baffle is turned over downwards through the pin shaft and covers the through groove; and meanwhile, the front side baffle plate is attached to the front end of the protective shell, so that the out-cabin camera can be protected in the protective shell when not in use.

The utility model discloses a steam condensate water discharge device, including drain pipe and water tank no.

The utility model discloses a device for adjusting the relative position between a stator and a casing, which relates to the technical field of stator position adjustment and comprises a casing, a first telescopic rod is fixedly connected to the center of the lower side in the casing, a lower adjusting clamping plate is fixedly connected to the upper side of the first telescopic rod, and a spring is sleeved on the surface of the lower adjusting clamping plate. Lower arc-shaped clamping plates are fixedly connected to the front side and the rear side of the lower adjusting clamping plate, an adjusting threaded rod is in threaded connection with the center of the upper side in the machine shell, the upper end of the adjusting threaded rod penetrates through the inner side of the machine shell and is fixedly connected with an adjusting knob, and an upper adjusting clamping plate is rotationally connected to the lower side of the adjusting threaded rod; the front side and the rear side of the upper adjusting clamping plate are fixedly connected with upper arc-shaped clamping plates. According to the utility model, the first telescopic rod, the lower adjusting clamping plate, the spring, the adjusting threaded rod, the upper adjusting clamping plate and the adjusting knob are arranged, so that the relative position of the stator and the casing can be effectively adjusted, and non-uniform air gaps or incorrect relative positions can be avoided.