40results about How to "Solve broken problems" patented technology

The invention provides an updating method for an indoor pipeline. The updating method comprises the following steps: forming indoor holes and outdoor holes; drilling the holes; mounting the pipeline; testing pressure; backfilling a working pit. The updating method for the indoor pipeline has the beneficial effects that the updating method is adopted when the indoor pipeline is exchanged, the influence on the surrounding environment caused by the pipeline exchange is settled, the updating for the indoor pipeline is realized without large-area digging, the method is low in cost and the construction is convenient.

The embodiment of the invention discloses a load balancing method, device, equipment and storage medium, and relates to the field of network communication. The method includes: determining the candidate server of the target request to be sent based on a hash algorithm; determining whether the local request initiator has the authority to access the candidate server; A target server is selected from the server, and the target request is sent to the target server. The embodiment of the present invention ensures that the access speed of the requester will not exceed the maximum carrying capacity of the server by configuring the access authority of the server for the request initiator.

The invention relates to the technical field of a railroad freight car braking, in particular to a railroad hopper car hand braking device which solves a plurality of problems existing in actual application of an existing railroad hopper car. The railroad hopper car hand braking device comprises a hand brake support, a hand brake, a hand brake chain, a fixed pulley, a supporting base, a brake cylinder and a push rod, and further comprises a hand brake pull rod, a hand brake pull rod guide frame, a vertical lever, a vertical lever supporting point base, a switching lever, a switching lever supporting point base, a horizontal transmission chain and a switching pull rod. The hand brake support, the fixed pulley and the supporting base are fixed to an end beam, the hand brake pull rod guide frame and the brake pull rod are installed on the lower portion of a bottom frame, the vertical lever is vertically hinged to the bottom frame, and the lower end of the switching lever extends to the position below the bottom frame. The railroad hopper car hand braking device is arranged below the end beam and the bottom frame, completely eliminates the probability that a supporting frame is pulled out through an existing hopper car hand brake pull rod reinforcing rib and the problem that a hand brake pull rod breaks and influences running safety, and meets the requirement for running safety of the railroad hopper car.

The invention discloses a method for preventing lightning counterattack of a power distribution cabinet, which belongs to the technical field of lightning protection of a power distribution cabinet. The method includes the following steps: setting an isolation transformer on the power supply line of the power distribution cabinet, There is a shielding layer between the primary winding and the primary winding; when the lightning strikes the fan, the ground potential of the lightning strike point rises, and the potential of the ground side of the power distribution cabinet below the fan rises with the rise of the ground potential; when the potential of the ground side of the power distribution cabinet rises , the high potential side of the power distribution cabinet rises synchronously; by setting the shielding layer to ground, and at the same time the power distribution cabinet is connected to the secondary winding, the voltage difference added to the equipment in the power distribution cabinet is always the power supply voltage, and the potential difference is constant, eliminating the ground grid Counterattack caused by high potential difference to avoid equipment damage. Through equipotential technology and reference potential floating technology, the potential reference point of the lightning strike point is the reference point of the power supply voltage, and the potential difference between the two ends of the equipment in the power distribution cabinet is constant, which solves the problem that the equipment in the cabinet is damaged due to lightning strikes.

The invention provides an automatic tobacco wire feeding system, comprising: a packing unit, a storage unit, a wire feeding unit and a transfer unit; In the box, the storage unit is used to store the cut tobacco solid boxes output by the box packing unit, the wire feeding unit is connected to the cigarette making machine, and is used to feed the shredded tobacco in the cut tobacco solid box to the cigarette making machine, and the transfer unit is used for Cartoning unit, storage unit and wire feeding unit realize the circular transfer of empty cut tobacco boxes and full cut tobacco boxes, so as to realize the transfer and feeding of cut tobacco between the shredding machine and the cigarette rolling machine, and reduce the exposure of cut tobacco in the production environment time to solve the problem of moisture instability in shredded tobacco, reduce the impact of external forces on tobacco raw materials, solve the problem of shredded tobacco, realize the need for automatic sequence transfer from shredded shreds to coiling, and reduce labor intensity; it is more conducive to the fine management of tobacco and flexible production.

The invention discloses a method for manufacturing a semiconductor device, comprising: providing a design mask, the design mask including a plurality of design main line patterns; Add auxiliary virtual strip pattern at the endpoint of the line pattern, and then obtain the revised design mask; make a photolithography mask according to the modified design mask; use the photolithography mask to process the wafer Photolithography and etching; finally use a cutting mask to cut off unnecessary auxiliary lines according to design needs. According to the method for preparing a semiconductor device of the present invention, the problem that the lines generated during the micropatterning process of the silicon semiconductor substrate are easily broken is solved, so as to ensure that the pattern on the mask plate is completely transferred to the silicon semiconductor substrate, and then The reliability and production efficiency of the prepared semiconductor device structure are improved.

The invention discloses a high-hardness raw-ore stripping type automatic pulverizing device. The device comprises a first box body, a four-claw clamping disc and a clamping disc sliding block, a fueltank is fixedly installed on the top of the first box body, and the right side of the fuel tank is provided with a water tank which is fixedly installed on the top of the first box body. The device has the advantages that the structure is simple, the operation is simple and convenient, the current problem of high-hardness raw ore pulverizing is solved, rapid temperature reduction is conducted by spraying water mist after high-hardness raw ores are flamed and heated, so that the internal molecular structures of the high-hardness raw ores are changed through the principle that expansion is caused by heat and contraction is caused by cold to allow the raw ores to be stripped layer by layer to be easily pulverized, fuel and water can be automatically added, the whole operation is automated, manual operation is not needed, and therefore the efficiency is greatly improved.

The invention discloses a single-shaft mortar and high-viscosity fluid stirrer for an axial turbulent flow pattern multi-wire cutting machine, comprising a stirring shaft, a stirring assembly and a driving mechanism, wherein the stirring assembly comprises impellers and short flow diversion tubes, the impellers are used for driving a material to move up or down in an axial and spiral mode along the inner wall of a pot body of a stirring pot, the short flow diversion tubes are used for restricting the material flow direction to an axial movement along the axis of the stirring shaft when the material moves up or down in the axial and spiral mode, the impellers and the short flow division tubes are assembled into the stirring assembly which drives the material needed to be mixed and stirred to do an axial turbulent flow motion during stirring, the impellers are coaxially installed at the bottom end of the stirring shaft, the short flow division tubes are coaxially and fixedly sleeved at the outer sides of the impellers, and the stirring speed of the stirring shaft is 600-1500rmp. The single-shaft mortar and high-viscosity fluid stirrer has the advantages of simplicity in structure, high stirring capacity, small shearing force, high dispersing power and high effect, and can be used for solving the problem that silicon carbide is broken due to the shearing force during the high-speed stirring of various traditional stirrers. Moreover, a stuck phenomenon is difficult to generate.

The invention discloses an automotive front bumper mounting bracket comprising a bracket body. The bracket body is connected with a wheel fender, an automotive frame and a front bumper respectively. The upper portion of the bracket body and the lower portion of the bracket body are provided with a first positioning pin and a second positioning pin which are connected with the wheel fender in a clamping manner. The automotive frame and the wheel fender are fixed through bolts. The automotive frame and the front bumper are fixed in a clamping manner. One side of the bracket body is provided with at least two clamp claws extending downwards, and clamp claw fasteners are arranged on the front bumper. The clamp claws are connected with the clamp claw fasteners in a clamping manner. The bracket body is made of plastic material. The automotive front bumper mounting bracket is simple in structure, low in cost, high in mounting efficiency, ergonomic, light in weight and environment-friendly; parts strength is increased; and the problems that limited flange shape of the front bumper influences demoulding, a gap between the wheel fender and the front bumper is uneven, segment difference is difficult to control and matching accuracy of parts is low are solved.