8results about How to "Improve maintenance safety" patented technology

The utility model relates to the technical field of oil pumping units, in particular to a chain type efficient oil pumping unit which comprises a chain type oil pumping unit body, a driving motor and a pulley, the driving motor is fixedly installed on one side of the lower end of the chain type oil pumping unit body, and the pulley is rotatably installed on one side of the top end of the chain type oil pumping unit body. A multi-stage safe climbing auxiliary structure is arranged on the outer wall of the chain type oil pumping unit main body, and a stable supporting structure is arranged at the lower end of the chain type oil pumping unit main body. According to the chain type efficient oil pumping unit, the steps are made of metal carbon steel materials in a welded and prefabricated mode and fixed to one side of the outer wall of the chain type oil pumping unit body, workers can climb to the upper step from the vertical crawling ladder conveniently through the through holes, the fences are welded to the edges of the steps through stainless steel metal handrails, and the situation that the workers fall from high positions can be reduced through the fences; the multi-stage crawling ladder on the outer side of the oil pumping unit is used for providing a rest for the maintainer, and the maintenance safety of the chain type efficient oil pumping unit is improved.

This invention relates to the field of electric shock protection technology and discloses an electric shock protection switch cabinet for high-voltage complete sets of electrical equipment. The switch cabinet includes a protective switch cabinet with a rotating door. High-voltage electrical equipment is installed inside the protective switch cabinet. This invention enables an insulating block to close the equipment wiring harness switch, placing the high-voltage electrical equipment in a de-energized state. This eliminates the risk of electric shock to maintenance personnel at the source, prevents personal electric shock accidents, eliminates the fatal threat of live parts, and avoids accidental electric shock caused by maintenance personnel touching live parts. It ensures the safety and convenience of maintenance operations. The insulating board ensures maintenance space and eliminates obstruction hazards. It can block the electric shock circuit formed by contact voltage, preventing grounding short circuits caused by equipment failures at the maintenance site. A potential difference will form on the ground, and personnel stepping on it will be at risk of electric shock due to step voltage. Standing on the insulating board provides insulation from the ground.

The utility model belongs to power battery technical field discloses a kind of high-voltage connector and battery pack. High-voltage connector includes connector main body, busbar connecting structure and protective cover, connector main body is provided with inner chamber and two windows being communicated with inner chamber;Busbar connecting structure is located in inner chamber, each window is correspondingly provided with busbar connecting structure;Each window is correspondingly provided with protective cover, protective cover can rotate relative to connector main body, to switch between the first position of opening corresponding window and the second position of closing corresponding window, two protective covers are configured to rotate to first position in opposite directions, and one of protective cover is located in first position and presses the other protective cover in second position. When maintaining high-voltage connector, only single protective cover can be opened for operation, to prevent the user's finger from touching two busbar components by mistake during maintenance, to avoid the possibility of simultaneous lapping short-circuit risk.

The utility model discloses a kind of lifting device for fan, including fixed sleeve and at least two support rods, fixed sleeve includes at least two fixed walls, and at least two the fixed wall is detachably connected along circumference direction;The both ends of the support rod are fixed end and connecting end respectively, and at least two the fixed end is fixedly connected with the outer circumferential wall annular spacing of fixed sleeve, the connecting end is equipped with the sleeve pipe of transversely extended arrangement, the sleeve pipe is perpendicular to the extension direction of the support rod, and the sleeve pipe is used to lift rod from middle through.In lifting fan, the two fixed walls of fixed sleeve are embraced tightly below fan, then lift rod is passed through sleeve pipe, and fan is lifted by lift rod to carry out overhaul work, can use any diameter lift rod to lift fan, and fixed fan is firm, improve overhaul safety, adapt to multiple models of fan, improve adaptability.

The present disclosure relates to a discharge circuit, an electronic device and a working method, and relates to the technical field of discharge. The discharge circuit comprises a circuit input end, a fast discharge circuit, a protection circuit, a circuit output end; the circuit input end is electrically connected with a battery output end; the circuit output end is electrically connected with a charge-discharge port of an electronic device; the fast discharge circuit is electrically connected between the circuit input end and the circuit output end, so as to control the battery to output a first current to the charge-discharge port; the protection circuit is electrically connected between the circuit input end and the circuit output end, so as to control the battery to output a second current to the charge-discharge port; the first current is greater than the second current. The present disclosure sets the fast discharge circuit, so that the battery can output a larger current, and the fast discharge of the battery can be realized without disassembling the electronic device, thereby improving the maintenance safety of the electronic device.

The utility model relates to connector technical field especially plug and high pressure connector. The plug includes plug shell and the plug power contact and plug shielding piece of installing in the plug shell, and the plug shell is equipped with the plug interface to the plug power contact and plug shielding piece, and the probe insertion channel that still is set up from outside to inside to the plug power contact is still provided on the plug shell, and the probe insertion channel avoids the setting of plug shielding piece, or the probe insertion channel sets up in the side of plug interface, is independent of plug interface and sets up through plug shielding piece. In the insulation maintenance, the probe is inserted from the special probe insertion channel, and since the probe insertion channel limits the insertion path of the probe, the probe can only contact the plug power contact in the insertion process, cannot contact other metal components except the plug power contact, so that the probe cannot contact the plug power contact and plug shielding piece simultaneously, thereby improving the maintenance safety.

The utility model relates to a lamp box mounting technical field especially a side hanging type lamp box, a side hanging type lamp box, including vertical fixed installation's riser, is equipped with the lighting window on the riser, the rotatable lamp box is rotatably installed on the riser through the shaft, the lamp for lighting is installed in the lamp box, and the lamp box can be maintained after turning over upwards. This side hanging type lamp box contains a piece of vertical fixed riser, and the riser is equipped with the lighting window for the light transmission, and the riser is connected with the lamp box that can turn over upwards through the shaft body, and the lamp box is internally provided with the lamp for providing the lighting, when daily using, the light of the lamp can be projected outward through the lighting window, satisfies the illumination or demonstration demand, when the lamp needs to overhaul, replaces or cleans and maintains, only needs to turn over the lamp box upwards, can let the internal lamp completely expose, need not to dismantle the lamp box whole, convenient operation and can complete the maintenance work fast, guarantees the continuous stable operation of the lamp box.

The utility model discloses a transformer tap switch gear position adjusting device belongs to the electric power equipment maintenance technical field, including base mechanism, telescopic column and set up in the telescopic column top's multiaxis positioning mechanism and operation module, multiaxis positioning mechanism includes primary slide rail, secondary slide rail, sliding block no.