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61results about How to "Entry barrier" patented technology

Method used for automatic heat dissipation and dust removal of transformer box

The invention relates to a method used for automatic heat dissipation and dust removal of a transformer box, and belongs to the field of closed type transformer substations. According to such problemsas additional energy consumption and external dew invasion and small ash removal range in the prior art, the following scheme is provided. According to the scheme, the method includes the following steps that 1, when the temperature is increased, an expansion air bag extend toward the two ends under the limiting effects of limiting pipes respectively, and thus threaded rods fixedly connected withthe two ends of the air bag are driven to extend outward on support plates; 2, the horizontal positions of propeller fans are fixed, and the moving threaded rods push the propeller fans with inner threads matched with outer threads of the threaded rods to rotate; 3, rotating bars of a rotating-bar type blind window are fixedly connected with rotating ropes, and the other ends of the rotating ropes are fixedly connected with the threaded rods; 4, the moving threaded rods pull the rotating ropes, the rotating bars are driven to rotate, and thus the angle between a blade surface of the blind window and a vertical plane is thus controlled; 5, second conical teeth on tapered pipes fixedly and coaxially connected with the propeller fans are meshed with first conical teeth on the top of transmission rods, the propeller fans drive the transmission rods to rotate, and thus cleaning disks are driven to rotate.
Owner:宁波南顿电力科技有限公司

Wiredrawing type high-speed electric arc spraying gun

ActiveCN104874497ARealize the atomization effectUniform atomizationElectric arc sprayingElectric machineryEngineering
The invention discloses a wiredrawing type high-speed electric arc spraying gun. The wiredrawing type high-speed electric arc spraying gun comprises a wire feeding motor, a speed reducing mechanism, wire feeding mechanisms and a spraying gun head, wherein an output shaft of the wire feeding motor is connected with the speed reducing mechanism; two ends of an output shaft of the speed reducing mechanism are connected with the wire feeding mechanisms respectively; wire inlet and outlet pipes are arranged on each wire feeding mechanism; the spraying gun head comprises a rear gun body; a front gun body is mounted at the front end of the rear gun body; a spray nozzle is fixed on the rear gun body through a support seat and extends out of an inner cavity of the front gun body; an airflow flow channel is formed in the rear gun body and penetrates through a converging-diverging flow channel of the spray nozzle; an outer cover is arranged on the outer wall of the spray nozzle, and an annular flow channel communicated with the converging-diverging flow channel is formed between the outer cover and the spray nozzle; the rear gun body is equipped with two current contact nozzles, the current contact nozzles correspond to corresponding wire guiding inclined holes in the spray nozzle, and two wires conveyed from the wire guiding inclined holes are converged nearby the converging-diverging flow channel. According to the wiredrawing type high-speed electric arc spraying gun, the particle spray speed can be increased, so that the atomizing jet is more uniformly concentrated, wire feeding parts in the wire feeding mechanisms are prevented from being contacted with wires and dust, and the service life is effectively prolonged.
Owner:ACADEMY OF ARMORED FORCES ENG PLA +1

Secondary hole sealing method capable of improving coal bed drilling firedamp sucking concentration

The invention relates to a secondary hole sealing method for improving the gas drainage concentration of a coal seam drill hole, which is particularly suitable for gas drainage in places like an extracting face, a cross-cut coal place, a coal drift and so on. When the gas drainage concentration is lower than 16 percent, a shock tube which is connected with a compressed air pipe is inserted into the coal seam drill hole on the basis of primary drilling and hole sealing and then close to a primary polyurethane hole sealing place; fine expanding powder materials are blown into the coal seam drill hole by compressed air with certain pressure until the coal seam drill hole is full of the fine expanding powder materials, and then the shock tube is extracted and accelerated cement is quickly used for sealing an orifice of the coal seam drill hole. The secondary hole sealing method for improving the gas drainage concentration of the coal seam drill hole can greatly improve the gas drainage concentration and prolong the effective drainage period of the drainage drill hole after secondary hole sealing, and not only improve the utilization rate of the drill hole but also obviously improve the gas drainage effect and guarantee the safety of a gas drainage system.
Owner:CHINA UNIV OF MINING & TECH

A kind of plugging agent for drilling fluid and preparation method thereof

The invention discloses a blocking agent for drilling fluid and a preparation method thereof. The blocking agent for the drilling fluid is prepared from a thermosensitive deformation hydrophobic material, a thermosetting hydrophobic material, a rigid solid particle material, vegetable oil and solvent oil. The preparation method comprises the steps that the mixture of the thermosetting hydrophobic material and the plant oil is added into the cooled thermosensitive deformation hydrophobic material, sufficient stirring is carried out, the rigid solid particle material and the solvent oil are added, and then sufficient stirring is carried out. The blocking agent can effectively block various holes and microcracks with the diameters smaller than 20 micrometers, the permeability of the holes and the microcracks is lowered from 10<-5> md to 10<-6> and even 10<-7> md, and the filter loss is reduced; the blocking agent is easy to disperse and suspend in the drilling fluid without agglomeration or sedimentation, contains no emulsifying agent, can be used in drilling fluid in a water station, can also be used in drilling fluid in an oil station, and has the blocking and anti-sloughing acting effects. The preparation method is easy and convenient to implement, low in cost and applicable to industrial large-scale production.
Owner:SOUTHWEST PETROLEUM UNIV

Safe infusion apparatus capable of randomly placing normal infusion

The invention discloses a safe infusion apparatus capable of randomly placing normal infusion, and belongs to the technical field of medical apparatuses. A fixing case formed by defining a top plate and side plates is additionally arranged inside a dripping cup; the lower end surface of the fixing case is in tight contact and fixedly connected with the dripping cup; a through hole extending to the bottom is formed in the side wall of the fixing case; a filtering membrane is additionally arranged in the position of the through hole; a cavity defined by the filtering membrane and the fixing case is a medicine liquid filtering cavity; a cavity formed between the medicine liquid filtering cavity and the dripping cup is a liquid inlet cavity; a medicine liquid puncture needle is communicated with the liquid inlet cavity; an outlet of the dripping cup is communicated with the medicine liquid filtering cavity. The end surface of one end, connected with the dripping cup, of a liquid outlet pipe is flushed with the upper end surface of the outlet of the dripping cup or is positioned under the upper end surface to form a passage without medicine liquid residue. On the premise of enabling not to cause any damage to the human body, medicine liquid in the dripping cup is totally infused into the human body; the waste of the medicine liquid is reduced; the environment pollution is reduced; the energy is saved; the environment is protected.
Owner:魏获生

Cooker capable of cooking blood glucose reducing rice and steam heating type cooking utensil

The invention discloses a cooker capable of cooking blood glucose reducing rice and a steam heating type cooking utensil, belongs to the field of kitchen cooking utensils, and solves the problem thatthe steam heating type cooking utensil cooks the blood glucose reducing rice. The cooker comprises a cooker body and a cooker cover which define a cooking cavity, the cooker cover is provided with anair inlet channel allowing steam to be introduced, the cooker further comprises a steam guide pipe and a rice soup collector which are contained in the cooking cavity, the steam guide pipe guides thesteam to enter a rice-water mixture to generate rolling liquid flow, the rice soup collector comprises a rice soup collecting cavity and a rice soup collecting channel, the rice soup collecting channel is provided with a rice soup inlet extending into the rice-water mixture, and rice soup enters the rice soup collecting channel from the rice soup inlet under pushing of rolling liquid flow and climbs up along the inner wall of the rice soup collecting channel to enter the rice soup collecting cavity. Based on the steam cooking mode matched with the steam guide pipe, the structure of the rice soup collector is optimized, and the cooker used for steam heating can be used for cooking blood glucose reducing rice.
Owner:JOYOUNG CO LTD

Agitator for bubble brick processing

The invention discloses an agitator for bubble brick processing. The agitator comprises a first agitating tank, and a second agitating tank is fixedly connected to the left side surface of the first agitating tank. A first motor is arranged on the upper surface of the first agitating tank, and a rotating rod is fixedly connected to the output end of the first motor. One end of the rotating rod penetrates through the upper surface of the first agitating tank and extends to the inside of the first agitating tank. The right side surface of the first agitating tank is fixedly connected with a placing plate, and the upper surface of the placing plate is fixedly connected with a second motor. An agitator arm is fixedly connected to the output end of the second motor, and one end of the agitatorarm penetrates through the first agitating tank and extends to the inside of the first agitating tank. A feeding inlet is formed in the upper surface of the first agitating tank, and a third motor isarranged on the upper surface of the second agitating tank. The output end of the third motor is fixedly connected with a screw rod. The agitator for bubble brick processing improves the working efficiency of bubble brick raw material processing, increases the production efficiency of bubble bricks, and improves the overall use effect.
Owner:扬州慕星新材料有限公司

Smoke blocking system of fireproof door

The invention relates to a smoke blocking system of a fireproof door. The smoke blocking system comprises a left door plate, a right door plate and a door frame, wherein the door frame is composed of door upright posts positioned outside the left door plate and the right door plate, and a cross beam which is transversely arranged at the top ends of the two door upright posts; and the left door plate and the right door plate are parallelly opened and closed at the back part of the door frame. The smoke blocking system is characterized in that a left door plate edge and a right door plate edge which are integrated are respectively manufactured on the relative sides of the left door plate and the right door plate through backward bending; the left door plate edge and the right door plate edge are mutually embedded; the smoke blocking system further comprises upper sealing plates and side sealing plates; the upper sealing plates are arranged at gaps of the left door plate and the cross beam and the right door plate and the cross beam; and the side sealing plates are arranged at gas of the left door plate and the door upright posts and the right door plate and the door upright posts. According to the smoke blocking system, the structure design is scientific and reasonable, the system has the advantages that the structure is not liable to deform, the smoke and fire obstruction effect is good, and safety of passengers in an elevator is guaranteed, and the smoke blocking system of the fireproof door has relatively high innovativeness.
Owner:SIGNOR ELEVATOR

Method for Automatic Heat Dissipation and Dust Removal of Transformer Box

The invention relates to a method used for automatic heat dissipation and dust removal of a transformer box, and belongs to the field of closed type transformer substations. According to such problemsas additional energy consumption and external dew invasion and small ash removal range in the prior art, the following scheme is provided. According to the scheme, the method includes the following steps that 1, when the temperature is increased, an expansion air bag extend toward the two ends under the limiting effects of limiting pipes respectively, and thus threaded rods fixedly connected withthe two ends of the air bag are driven to extend outward on support plates; 2, the horizontal positions of propeller fans are fixed, and the moving threaded rods push the propeller fans with inner threads matched with outer threads of the threaded rods to rotate; 3, rotating bars of a rotating-bar type blind window are fixedly connected with rotating ropes, and the other ends of the rotating ropes are fixedly connected with the threaded rods; 4, the moving threaded rods pull the rotating ropes, the rotating bars are driven to rotate, and thus the angle between a blade surface of the blind window and a vertical plane is thus controlled; 5, second conical teeth on tapered pipes fixedly and coaxially connected with the propeller fans are meshed with first conical teeth on the top of transmission rods, the propeller fans drive the transmission rods to rotate, and thus cleaning disks are driven to rotate.
Owner:宁波南顿电力科技有限公司

Grinding head structure of a grinder

The invention relates to a grinding head structure of a grinder. The grinding head structure comprises an inner grinding head, an outer grinding head and an inner grinding head holder, wherein the inner grinding head and the outer grinding head are used for grinding seasoning cooperatively; the outer grinding head is of a cyclic structure with a through hole in the middle; the inner wall of the outer grinding head at one end is provided with a thread structure connected with a shell; the inner wall of the outer grinding head at the other end is provided with outer grinding teeth; inner grinding teeth matched with the outer grinding teeth are arranged on the outer wall of the inner grinding head; the inner grinding head is arranged in the through hole at one end, provided with the outer grinding teeth, of the outer grinding head; the inner grinding head is arranged on the inner grinding head holder; a cover plate is arranged at one end of the inner grinding head holder and is connected with the front end of the inner grinding head; a discharge port is arranged on the cover plate; the other end of the inner grinding head holder is rotationally clamped onto the outer wall of the outer grinding head; the inner grinding teeth and the outer grinding teeth are divided into two parts lengthwise along the direction from a feed port to the discharge port; and space width of three adjacent teeth of the inner grinding teeth and the outer grinding teeth near the feed port is equal to space width of four adjacent teeth of the inner grinding teeth and the outer grinding teeth near the discharge port.
Owner:NINGBO CHEFSHERE KITCHEN TECH
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