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Recyclable sounding pipe anti-blocking protection device
ActiveCN222161386Uavoid enteringGuarantee unimpededMaterial analysis using sonic/ultrasonic/infrasonic wavesFoundation testingStructural engineeringMechanical engineering
The utility model belongs to the technical field of sounding pipes, and particularly relates to a recoverable anti-blocking protection device for a sounding pipe. Comprising a plugging piece, a connecting piece and a position adjusting assembly, the connecting piece is welded to the bottom of the position adjusting assembly, the position adjusting assembly comprises two fixing pieces and a positioning rod, the positioning rod is sleeved with the two fixing pieces, the plugging piece is arranged between the two fixing pieces, positioning of the plugging piece is achieved through the two fixing pieces, and the plugging piece is driven to conduct position adjusting. In practical application, the plugging piece is sent into the sounding pipe through the connecting piece, so that the phenomenon that impurities enter the sounding pipe to influence a test result during sounding construction can be effectively reduced, the device is simple in overall structure and convenient to operate, and the device can be directly taken out through the connecting piece to be repeatedly used after sounding is finished.
Owner:CHINA RAILWAY NO 3 ENG GRP EAST CHINA CONSTR CO LTD +1
Plugging device and plugging system
The invention provides a plugging device and a plugging system comprising the plugging device, the plugging device is used for plugging tissue defects, the plugging device comprises a folding part, the folding part is provided with a folding part, the folding part is divided into a first stacking part and a second stacking part by the folding part, and the first stacking part and the second stacking part are arranged on the folding part. The first stacking part and the second stacking part are used for being folded along the folding part and stacked and blocked at the notch of the tissue defect. A folding part is formed between the first laminating part and the second laminating part, so that the first laminating part and the second laminating part can be conveniently folded along the preset position and track of the folding part, a fold formed after the first laminating part and the second laminating part are folded can be basically overlapped with the folding part, the folding part is relatively regular, the position of the fold is proper, and the folding part can be conveniently folded. The shape and the size of the folded first stacking part and the second stacking part are basically consistent with those of a preset condition, and tissue defects can be tightly blocked.
Owner:HANGZHOU NUOMAO MEDTECH CO LTD
Bevel gear flange type single-disc gate valve
ActiveCN222437059UTightly blockedImprove convenienceOperating means/releasing devices for valvesSlide valveGear driveThreaded pipe
The bevel gear flange type single gate plate gate valve comprises a valve body, a valve cover, a valve rod and a gate plate, a flow channel is formed in the valve body, a valve port is formed in the flow channel, the valve cover is arranged on the valve body in a covering mode, the valve rod penetrates through the valve cover, the end of the valve rod is connected with the gate plate, and the valve rod drives the gate plate to move up and down to be used for blocking or opening the valve port. A rotatable inner threaded pipe is further arranged in the valve cover, the valve rod penetrates into the inner threaded pipe to be in threaded connection, a first bevel gear is arranged at the end of the inner threaded pipe, an end cover is further arranged on the upper end face of the valve cover, a transmission shaft is arranged on the end cover, and a second bevel gear meshed with the first bevel gear in a matched mode is arranged at one end of the transmission shaft. The valve port comprises an upper valve port body and a lower valve port body, a first elastic sealing ring assembly is arranged between the peripheral wall of the gate plate and the inner wall of the upper valve port body, and a second elastic sealing ring assembly is arranged between the peripheral wall of the gate plate and the inner wall of the lower valve port body. Therefore, the technical effects of being convenient to operate and capable of avoiding leakage are achieved.
Owner:ZHEJIANG BEIER CONTROL VALVE
Permeation monitoring mechanism and method for fluid circulation bearing part in frequency converter
PendingCN119469571Aavoid failureEffective blockingDetection of fluid at leakage pointMaterial analysisFrequency changerAmbient humidity
The invention discloses a penetration monitoring mechanism and method for a fluid circulation bearing component in a frequency converter, the monitoring mechanism comprises a supporting device, the supporting device is provided with a monitoring device, an anti-penetration device, a dehumidification device and a control device, and the monitoring device, the anti-penetration device and the dehumidification device are all electrically connected with the control device; wherein the monitoring device is used for monitoring the ambient humidity around the control cabinet, one end of the anti-permeation device is connected with the supporting device, and the other end of the anti-permeation device is installed at the joint of the frequency converter and an external pipeline; one end of the dehumidification device is connected with the supporting device, and the other end is located on the control cabinet. The anti-permeation device is installed at the joint of the frequency converter body and the external pipeline, the state information of the joint can be obtained, and when water flow or anti-freezing liquid permeates outwards from the joint, the joint can be effectively blocked.
Owner:HUANENG TIELING WIND POWER CO LTD
Earthquake-temperature self-adaptive viscous damper with large bearing capacity and simulation calculation method
ActiveCN121723560BReduce technical riskEnsure design safetyGeometric CADDesign optimisation/simulationElement modelVirtual displacement
The present application relates to the technical field of finite element simulation analysis, and specifically discloses a large bearing capacity earthquake-temperature self-adaptive viscous damper and a simulation calculation method, which comprises the following steps: S1: establishing a three-dimensional solid model of a temperature deformation joint and a viscous damper with a stiffness adjusting valve; S2: obtaining a finite element model of the three-dimensional solid model; S3: obtaining a critical speed and a load working condition speed of the viscous damper, and establishing a multi-state self-adaptive stiffness adjusting model of the viscous damper based on the ratio of the load working condition speed to the critical speed; S4: obtaining a time difference value of the stiffness adjusting valve from the start of closing to the complete closing, and establishing a virtual displacement quantification model; S5: adding the multi-state self-adaptive stiffness adjusting model and the virtual displacement quantification model to the finite element model; and S6: performing mechanical simulation analysis on the finite element model. The present application can accurately simulate the complex mechanical behavior of the damper under the conditions of multi-state switching, virtual displacement effect and bidirectional earthquake reciprocating action.
Owner:CHONGQING UNIV +1
Recyclable temporary quick plugging device for blast hole
The utility model discloses a recoverable blast hole temporary rapid plugging device, which comprises an inflator pump used for inflating air into an air bag, adopting a 12V small lithium battery to supply power, and comprising an expandable joint; the air bags are located at the tail end of the device, the air bags are made of high-elasticity rubber, the air bags are cylindrical after being inflated and expanded, the tops of the air bags are connected with quick-insertion type air escape valves and air inlet pipes, the air bags are main structures for temporarily plugging the blast holes, and the number of the air bags is the same as that of the to-be-plugged blast holes; and the control system consists of a barometer, a normally closed air valve and a relay and is used for automatically maintaining the pressure of the air bag. According to the recoverable temporary quick plugging device for the blasthole, the temporary plugging cost of the blasthole is saved, the quality and efficiency of temporary plugging of an orifice when the blasthole cannot be charged in time are ensured, and the safety of a subsequent charging procedure is improved.
Owner:武汉晴川学院
Rolling mill for metal processing
ActiveCN222326237UTightly blockedEffective adjustment areaWork treatment devicesRollsThermodynamicsMetal machining
The utility model relates to the technical field of metal processing, and discloses a rolling mill for metal processing, which comprises a rack, a roller arranged on the rack, an oil injection frame arranged at the top of the roller, an oil injection pipe arranged inside the oil injection frame, an oil injection groove arranged on the oil injection frame, and a plurality of oil injection holes arranged inside the oil injection groove at equal intervals. An oil sealing frame is rotationally mounted on the oil spraying frame, a magnetic attraction assembly which is fixed with the oil sealing frame is arranged on the oil sealing frame, and a limiting assembly used for fixing the oil sealing frame is arranged on the oil spraying frame. By arranging the oil sealing frame, the oil sealing frame is folded according to the width of a rolled metal plate and then placed into the oil injection groove, the oil injection opening is blocked through the oil plug, then the limiting hoop is rotated to fix the oil sealing frame, it is guaranteed that the oil sealing frame is blocked tightly, and the oil injection area can be effectively adjusted according to the width of the metal plate when equipment injects oil; waste of rolling oil is avoided, and the production cost is effectively reduced.
Owner:HUBEI HUAJIA METAL PROD CO LTD
Underwater blocking plate device for dam construction
ActiveCN222377578UImprove sealingTightly blockedPipe elementsMarine engineeringStructural engineering
The underwater blocking plate device based on dam construction comprises a blocking plate, one side of the blocking plate is provided with a plurality of water passing structures, a limiting seat and a plurality of supporting screw rods matched with the blocking plate in a threaded mode, the other side of the blocking plate is provided with a wall plate, and the wall plate is sleeved with a sealing sleeve. By the adoption of the structure, the blocking plate is good in sealing performance and tight in blocking under the water pressure effect, and deepwater operation is simplified; external water pressure is avoided after water is introduced, dismounting is convenient, and deepwater operation force consumption is reduced; the device is simple and reasonable in structure and convenient and fast to install, and reduces operation difficulty and time cost.
Owner:HUBEI ZHONGBA CONSTR ENG CO LTD
Double-wing folding house
ActiveCN222295288Uquick assemblyquick releaseHeat proofingBuilding insulationsThermal insulationClassical mechanics
Owner:HENGSHUI JINGTONG INTEGRATED HOUSING CO LTD