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81results about How to "Check air tightness" patented technology
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Valve element airtightness testing device
ActiveCN102128707AImprove detection efficiencyEasy to operateDetection of fluid at leakage pointTest efficiencyAir tightness
The invention relates to a valve element airtightness testing device and belongs to the technical field of testing clamps. The valve element airtightness testing device is characterize by comprising a pressing device (1), wherein the pressing device (1) comprises a bottom plate (1.1), a top plate (1.2) and a movable beam (1.3); the top plate (1.2) is provided with an air cylinder (3); a pluralityof guide posts (2) are arranged between the bottom plate (1.1) and the top plate (1.2); the movable beam (1.3) is sleeved on the guide posts (2); a pressure block (4) is arranged at the bottom of themovable beam (1.3); a base (5) is arranged on the bottom plate (1.1); and a sealed barrel (6) is fixed below the pressure block (4). The valve element airtightness testing device can provide stable and adjustable pressing force, so the airtightness of the valve element can be tested more accurately, and the test efficiency is improved; and the operation is convenient, the structure is simple, thetest efficiency is high, and the manual operation intensity is lowered.
Owner:WUXI YINGBEI PRECISION BEARING
Detecting method for flexible packing products air tightness
ActiveCN101140194ACheck air tightnessFluid-tightness measurement using fluid/vacuumEngineeringAir tightness
Owner:ZHENGZHOU BAK BATTERY CO LTD
Full-automatic airtightness detection device and method for fuel cell stack
PendingCN110487488ACheck air tightnessImprove detection accuracyMeasurement of fluid loss/gain rateHydrogenFuel cells
The invention discloses a full-automatic airtightness detection device and method for a fuel cell stack. The device comprises a gas storage bottle, a main gas inlet pipe, three branch gas inlet pipescommunicated with the gas outlet end of the main gas inlet pipe, a main gas outlet pipe, three branch gas outlet pipes communicated with the gas inlet end of the main gas outlet pipe, a pressure detector and a gas flow meter; the gas inlet end of the main gas inlet pipe is communicated with the gas storage bottle; the three branch gas inlet pipes are communicated with gas inlets of a hydrogen cavity, a water cavity and an air cavity of the fuel cell stack respectively; the three gas outlet pipes are communicated with gas outlets of the hydrogen cavity, the water cavity and the air cavity of the fuel cell stack respectively; the main gas inlet pipe, the three branch gas inlet pipes and the three branch gas outlet pipes are provided with valves respectively, the pressure detector is installed on the main gas inlet pipe and located in a pipeline section between the valve of the main gas inlet pipe and the branch gas inlet pipes, and the gas flow meter is installed on the main gas outlet pipe. Thus, the airtightness of the fuel cell stack can be detected fully automatically, the labor cost is reduced, and the airtightness can be quantified.
Owner:WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
On-line detection device for gas tightness of canister
ActiveCN109238594AReasonable designCompact structureMeasurement of fluid loss/gain rateHydraulic cylinderEngineering
The invention provides an on-line detection device for gas tightness of a canister. The on-line detection device comprises a processing platform, four supporting feet which are vertically connected toa lower end of the processing platform, and a bearing base which is fixedly connected to an upper end of the processing platform; an upper end of the bearing base is provided with a bump; an upper end of the bump is inserted into the inner cavity of a canister body through the outlet of the canister body; a gas supplement control device is arranged above the canister body; and an upper end of thegas supplement control device is connected with an output end of a hydraulic cylinder. The on-line detection device overcomes the defects in the prior art, and has the advantages of reasonable designand compact structure. By enclosing the inlet and outlet of the canister and filling compressed air, the canister body is kept under a certain pressure for one minute. By counting the gas supplementamount within unit time, namely, gas leakage amount within unit time through air mass flow, the problems of simple structure, uncontrollable flow, single testing condition and inconvenient monitoringof testing process in gas tightness testing are solved.
Owner:安徽钟南防化科技有限公司
Fire valve pressure test equipment and detection method thereof
ActiveCN105928671ACheck air tightnessFlexible configurationDetection of fluid at leakage pointMachine part testingAir tightnessTest equipment
The invention relates to the technical field of valve detection equipment, and particularly relates to fire valve pressure test equipment and a detection method thereof. The fire valve pressure test equipment comprises a workbench which is provided with a water tank. A support is arranged in the water tank. At least one set of detection position is arranged on the support. The two sides of the water tank or the workbench of the two sides of the water tank or the two sides in the water tank are provided with an elevating mechanism which can drive the support to move upward and downward in the water tank. Working of the detection positions and the elevating mechanism is controlled by a controller. The advantages of the fire valve pressure test equipment and the detection method thereof are that airtightness of a fire valve can be accurately detected, accuracy of the detection process can also be guaranteed, and the fire valve pressure test equipment and the detection method thereof can be suitable for the fire valve of different sizes and detection efficiency is high.
Owner:ZHEJIANG KABO COPPER IND CO LTD
Leakage detection device and method for engine front cover assembly
PendingCN108458839ACheck air tightnessIncrease profitDetection of fluid at leakage pointMeasurement of fluid loss/gain rateLaser rangingEngineering
The invention discloses a leakage detection device for an engine front cover assembly. The leakage detection device for the engine front cover assembly is characterized by comprising a workpiece station, a clamp body, an oil hydraulic system, a pneumatic system, an oil seal detection device body (10), an air tightness detection device body (5), a water detection system and an electrical system which are arranged on a machine frame body, wherein the oil seal detection device body (10) is provided with a laser distance measuring sensor, and the laser distance measuring sensor is used for measuring the installation height and the depth of parallelism of an oil seal. According to the leakage detection device, the installation size of the oil seal and the air tightness of the front cover assembly can be rapidly and efficiently detected, the overall structure is redesigned and constructed, so that a leakage test tool and a press fitting tool can be further combined, non-interfering operationcan be realized, and therefore air tightness detection and press fitting can be integrated, the structure is simple, the occupied area is small, the utilization rate of a machine table can be improved, and meanwhile, the cost investment can be reduced.
Owner:GUANGDONG HONGTU TECHNOLOGY (HOLDINGS) CO LTD
Gas shooting detection system
PendingCN109975224AQuick shot detectionHelp buildColor/spectral properties measurementsBottleStreamflow
The invention provides a gas shooting detection system. The gas shooting detection system comprises a gas mixing regulation device, a gas chamber device, a light source, a spectrometer and a shootingdevice, wherein the gas mixing regulation device comprises a flow regulator, an inert gas humidity generator, a gas mixer, a to-be-detected gas supply bottle and an inert gas supply bottle; the gas chamber device comprises a gas absorption detection pool; a gas inlet of the gas chamber device is connected with a gas outlet of the gas mixing regulation device; the gas absorption detection pool comprises a light inlet hole, a white cell structure, a light outlet hole and a camera shooting port; a light path converter is arranged at the positions of the light outlet hole and the camera shooting port; the shooting device comprises a filter and a camera; the filter comprises a plurality of filter sheets arranged on a filter wheel; and the shooting device is connected with the camera shooting port. The gas shooting detection system provided by the invention also can implement detection on pollution gas with different concentrations and different humidity degrees, and is helpful for establishing a pollution gas shooting detection data model.
Owner:SOUTHWEST JIAOTONG UNIV
Device for testing water pump cavity air tightness
PendingCN109870277ACheck air tightnessImprove air tightnessMeasurement of fluid loss/gain rateEngineeringAir tightness
The invention relates to a device for testing water pump cavity air tightness. When the device for testing the water pump air tightness provided by the invention is used for carrying out air tightnessdetection on a water pump, a connection cover at an opening of a water pump cavity is aligned with a circular pit on a testing platform and a sealing ring surrounds the connection cover and is in sealed contact with an end cover; a water pump shell is compressed through utilization of a compression mechanism and an air cavity formed between the end cover nearby a water pump opening and the circular pit is sealed through utilization of the sealing ring; an air tightness detector imports compressed air into a first connection hole; the compressed air enters the air cavity and then enters into the water pump cavity from a gap between the end cover and the connection cover; and if the air tightness of a weld joint of the end cover of the water pump is poor, the compressed air in the water pump cavity is leaked from a poorly sealed position, and the air tightness detector can detect pressure drop.
Owner:华域皮尔博格泵技术有限公司
Hydraulic cylinder detection device
ActiveCN109489910AEasy to moveGuaranteed air tightnessDetection of fluid at leakage pointVertical tubeHydraulic cylinder
The invention belongs to the technical field of detection equipment, and specifically discloses a hydraulic cylinder detection device. The device includes a machine frame, an air inlet unit, a detection unit and a limit part. The air inlet unit includes a first driving part and a piston barrel, and the detection unit includes a second driving part, a gas collecting part and a detection part. The gas collecting part includes a T-shaped tube, an elastic air bag and a second pipeline, and the detection part includes a detection tube and a detection tank. The detection tank is filled with water, the detection tube is communicated with a vertical tube, and the air outlet end of the detection tube stretches into the detection tank. The detection device with the above structure can solve the problem that the air tightness detection of a hydraulic cylinder is not accurate enough in the prior art.
Owner:CHONGQING WEIQING HYDRAULIC MACHINERY CO LTD
Multi-kinetic-energy detection test bed for oil-gas separator and detection method
ActiveCN113252256AMeet import and exportMeet detectionMeasurement of fluid loss/gain rateMachine valve testingPiston rodTest bench
The invention relates to a multi-kinetic-energy detection test bench for an oil-gas separator and a detection method, the multi-kinetic-energy detection test bench comprises a detection workbench, a preparation workbench, a linear guide rail and a driving device, the detection workbench and the preparation workbench are integrally formed, one end of the linear guide rail is arranged on the preparation workbench, the other end of the linear guide rail is arranged on the detection workbench, a clamp is arranged on the linear guide rail, the driving device is connected with the clamp, a plurality of positioning columns are arranged on the clamp, a first air cylinder, a second air cylinder, a third air cylinder and a fourth air cylinder are arranged on the detection workbench, a detection head is arranged on a piston rod of each air cylinder, and each detection head is connected with external pressure detection equipment. The driving device drives the clamp to move to the detection workbench for positive pressure detection and then for negative pressure detection, so that the technical problems that an oil-gas separator detection device in the prior art can only detect a single product and can only detect one of the positive pressure and the negative pressure are solved.
Owner:宁海县雄达模塑有限公司
Pipeline welding structure for pull pipe construction method
InactiveCN105952992AGuaranteed welding fastnessAvoid the problem of unstable weldingPipe couplingsCouplingsArchitectural engineeringPipe welding
The invention discloses a pipeline welding structure for a pull pipe construction method. The pipeline welding structure comprises an outer sleeve at a pipeline joint, more than one welding slot is arranged at each of two ends of the outer sleeve, the welding slots do not run through the pipe wall of the outer sleeve; at two sides of the outer sleeve and in the welding slots, the outer sleeve is welded with a pipeline in the outer sleeve; on the inner wall of the outer sleeve, a first welding rod, a second welding rod, a third welding rod and a fourth welding rod are arranged in the middle of the outer sleeve; the pipeline joint is located between the second welding rod and the third welding rod; and the first welding rod, the second welding rod, the third welding rod and the fourth welding rod are connected between the outer sleeve and the pipeline in a sealed way by adopting a hot melting manner. The pipeline welding structure is simple in structure, and the arrangement of the outer sleeve structure ensures the firmness and tightness of welding of two pipelines in long-distance traction and drawing.
Owner:江苏中达建设工程有限公司
Pressure intensity experiment instrument detection equipment
InactiveCN111337197ACheck air tightnessEasy to operateDetection of fluid at leakage pointEducational modelsAir pumpThin membrane
The invention, which belongs to the technical field of equipment for testing the sealing performance of a container through fluid, discloses pressure intensity experiment instrument detection equipment comprising a sealing cover and an air inlet part. The air inlet part comprises an air pump and an air inlet pipe communicated with the air pump, the air inlet pipe penetrates through the sealing cover. The pressure intensity experiment instrument detection equipment further comprises a supporting table, a vertical lower pressing piece is arranged on the supporting table, a pressing block is fixed to the bottom of the lower pressing piece, and the sealing cover is arranged at the bottom of the pressing block. The detection equipment further comprises a detection part including a frame body transversely connected to the supporting table in a sliding mode, a mounting frame is arranged on the frame body, two mounting strips are fixed to the mounting frame, and a thin film is fixed between the two mounting strips. Therefore, problems that in the prior art, after sealing performance detection is conducted, since a large amount of water adheres to a container, drying needs to be conducted,and operation is troublesome are solved.
Owner:CHONGQING UNIV OF ARTS & SCI
Performance test bench for car air compressor
InactiveCN106121991ACheck air tightnessEasy to operatePump testingPositive-displacement liquid enginesCouplingControl system
A vehicle air compressor performance test bench, including a workbench (1), a control cabinet (2), an oil supply device (3), a water supply device (4), an air storage tank I (5), an air storage tank II ( 6), low-voltage box (7), the control cabinet (2) is equipped with a control system, the control system controls the workbench (1), oil supply device (3), water supply device (4), gas storage tank I ( 5), gas storage tank II (6), low-pressure box (7) for control; one side of the workbench (1) is equipped with gas storage tank I (5), gas storage tank I (5) and gas storage tank II (6 ) connection, the gas storage tank II (6) is connected with the low-voltage box (7); the workbench (1) is provided with a driving motor (8), a torque sensor (9), and an air compressor fixture (10). The motor (8) is connected to the torque sensor (9) through the first coupling (11), the torque sensor (9) is connected to the balance wheel (12) through the second coupling (11), and the air compressor fixture ( 10) There is a shaft connected with the balance wheel (12) inside. The invention is novel, convenient and quick to operate, greatly reduces labor force, and improves detection efficiency.
Owner:DANYANG CHANGSHENG MACHINERY
Liquid storage kettle airtightness detection device
PendingCN108106796AAvoid deformationCheck air tightnessMeasurement of fluid loss/gain rateEngineeringAir tightness
Owner:UPTON AUTOMATION SYST (GUANGZHOU) CO LTD
PE valve airtightness test device
PendingCN111397816AAvoid damageCheck air tightnessMeasurement of fluid loss/gain rateStructural engineeringAir tightness
The invention discloses a PE valve air tightness test device. The device comprises a bottom plate; four supporting rods; and four sets of testing mechanism, wherein each testing mechanism comprises apressing base and an inlet connector, the pressing base is located under the inlet connector, a detection pipe is fixedly installed in the pressing base, a pressure sensor and a pressure display meterare fixedly installed on the surface, extending out of the pressing base, of the detection pipe, and an air inlet pipe is fixedly installed in the inlet connector. The device is simple in structure,convenient and fast operation, the inflation and pressure maintaining time can be adjusted according to the air tightness requirements of to-be-tested PE valves with different specifications, airtightness detection of multiple PE valves can be carried out at the same time, the judgment result is visual, operators are not required to have a high operation level, the detection efficiency is high, noadditional external force influencing the test result exists on the to-be-detected PE valve, the work efficiency is greatly improved, and the labor intensity is reduced.
Owner:SHANDONG WANJI PLASTIC
Full-automatic production line for cable processing
PendingCN113963859ACheck air tightnessQuality improvementDetection of fluid at leakage pointCable/conductor manufactureMulticore cableProduction line
The invention provides a full-automatic production line for cable processing. The full-automatic production line comprises a multi-mode wire drawing machine, a stranding machine connected with the discharging end of the multi-mode wire drawing machine, a multi-core cable stranding machine connected with the discharging end of the stranding machine, and an armoring extruder connected with the discharging end of the multi-core cable stranding machine. One end of the multi-mode wire drawing machine is provided with a first feed port, a first diameter measuring instrument is arranged outside the first feed port, and the first diameter measuring instrument is fixed on the outer surface of the stranding machine; one end of the stranding machine is connected with a winding drum frame, a second feeding hole is formed in one side, close to the winding drum frame, of the stranding machine, and a second diameter measuring instrument fixed on the outer surface of the stranding machine is arranged outside the second feeding hole; and the armoring extruder comprises an armoring die connected with the discharging end of the multi-core cable stranding machine, and a cooling device connected with the discharging end of the armoring die. While the cable is automatically produced, the air tightness and the tensile strength of the cable can be detected, so that the quality of the produced cable is improved.
Owner:深圳市华瑞线缆科技有限公司
A device and method for detecting the air tightness of an air path
The invention discloses a device and method for detecting the air tightness of an air path. The device includes a dehydration device, an air chamber and a suction pump which are arrange in sequence, the dehydration device is provided with an air inlet, a pressure sensor is installed on the air path between the air chamber and the suction pump, the device also includes a control system, the controlsystem is connected with the pressure sensor and the suction pump, when the air inlet is closed, whether gas tightness of a first air path meets the requirements is determined by a plurality of pressure values of the first air path when the suction pump is in different operation states, and the first air path is the air path between the dehydration device and the suction pump. The device has theadvantages that: detection can be performed on the air tightness of the air path momentarily, and the detection result can be fed back.
Owner:EDAN INSTR
Detection tool for air tightness of oil sump
PendingCN106872117ASmall footprintCheck air tightnessDetection of fluid at leakage pointCompression deviceSmall footprint
The invention discloses an oil pan gas seal detection tool, a detection device, comprising a detection box, a supporting platform, a lifting platform and a pressing device, the supporting platform is arranged in the testing box, and the lifting platform is movably connected to the supporting platform Above, the pressing device is set on the lifting platform. The detection box in the present invention occupies a small area. A certain amount of water is added to the testing box, and the oil pan is placed upside down on the lifting platform, and the pressing device presses it on the lifting platform. On the lifting platform, the lifting platform is lowered, so that the water in the detection box overflows the oil pan. If there is a defect in the oil pan, bubbles will be generated in the defect, which can quickly detect the air tightness of the oil pan, and the leak test period is short. , can be lined together with the welding process to increase production capacity, and the position of the defect can be quickly judged from the location of the bubbles, the detection is fast, the bubbles at the leak point are easy to locate, and the observation is intuitive and convenient. In addition, the auxiliary materials are compressed air and water. cut costs.
Owner:JINHU AUTOMOTIVE FITTS FACTORY JIANGSU PROV
Novel air cylinder quality verification device
InactiveCN103792075AAchieve work stabilityCheck air tightnessMachine part testingFluid-tightness measurement using fluid/vacuumReciprocating motionEngineering
The invention discloses a novel air cylinder quality verification device. The novel air cylinder quality verification device is composed of an air compressor, an air pipe and a verification platform frame. Three air cylinders can be simultaneously arranged on the verification platform frame. The air pipe is connected with reversing valves of the three air cylinders through an air pipe tee joint and an elbow. The direction of high pressure air entering the air cylinders is changed by controlling the reversing valves through an external control cabinet so that the air cylinders can drive air cylinder pull rods to reciprocate. In the movement process of the air cylinder pull rods, whether air leakage exists around the air cylinders or not is verified by observing the surface profiles of the air cylinders and the movement states of the air cylinder pull rods so as to judge whether the defects of surface quality problems, air leakage and the like exist in the air cylinders or not. When used for conducting air cylinder quality detection, the novel air cylinder quality verification device can externally complete verification of performance such as the stroke, the stability, the air tightness and the surface machining quality for the air cylinders through one-time installation, the process is simple and efficient, and meanwhile the novel air cylinder quality verification device is simple in structure and reliable, and allows installation blades of the air cylinders to be easily detached.
Owner:广西科穗环境科技有限公司
Liquid flow system of flow cytometer, air tightness detection method and flow cytometer
InactiveCN110118716AImprove reliabilityCheck air tightnessMeasurement of fluid loss/gain rateIndividual particle analysisEngineeringControl valves
The invention discloses a liquid flow system of a flow cytometer, an air tightness detection method and a flow cytometer. The liquid flow system comprises a sheath liquid device, a negative pressure device, a testing device and a sample loading device. The sheath liquid device comprises a sheath liquid pipeline communicated with the liquid inlet, a first sheath liquid control valve arranged on thetank flushing pipeline, a sheath liquid pump arranged on the sheath liquid pipeline, a sheath liquid pressure sensor and a second sheath liquid control valve, and the tank flushing pipeline is also communicated with the sheath liquid pipeline; the negative pressure device is communicated with the flow chamber and used for generating negative pressure for the liquid flow system; the testing devicecomprises a flow chamber and a negative pressure control valve arranged at a liquid outlet of the flow chamber; and the sample loading device comprises a sample loading pipeline communicated with a sample loading opening of the flow chamber, a sampling part arranged on the sample loading pipeline and a sample control valve. The liquid flow system can improve the accuracy of liquid path air tightness detection and blockage detection and reduce the cost of instruments.
Owner:北京唯公医疗技术有限公司
Stainless steel flange
ActiveCN110107758AReturn to original formIncrease in sizeDetection of fluid at leakage pointFlanged jointsEngineeringSilica gel
The invention relates to a stainless steel flange which comprises a flange body, a connecting end, a detection assembly, a sealing assembly and a silica gel sealing gasket. One end of the flange bodyis in threaded connection with the connecting end. The silica gel sealing gasket is mounted at the joint of the connecting end and the flange body. The detection assembly is mounted on the outer sideof the silica gel sealing gasket. The tail end of the connecting end is connected with the sealing assembly. The connecting end comprises a clamp block, a drive rope, a triangular limiting block, rubber balls and an inserted connection groove. The inserted connection groove is formed in one end of the connecting end. The rubber balls are evenly embedded to the inner walls of the two sides of the inserted connection groove. One side of the top end of the inserted connection groove is movably connected with the clamp block through a first rotating shaft, and a first torsional spring is arrangedat the joint of the clamp block and the first rotating shaft. Through cooperation between the connecting end and the sealing assembly, connection between external pipes can be completed rapidly and conveniently, device air tightness can be detected and controlled in real time through the detection assembly and other components, and safety performance is high.
Owner:常州大谷液压器材有限公司
Full-automatic air tightness detection machine
PendingCN112113724ALow running costRealize fully automatic detectionMeasurement of fluid loss/gain rateStructural engineeringCylinder block
The invention discloses a full-automatic air tightness detection machine, belonging to the field of quality inspection equipment. The full-automatic air tightness detection machine comprises a supportbody, an air tightness detection mechanism, feeding mechanisms, a material taking device, a labeling mechanism and a label calibration device, wherein the air tightness detection mechanism comprisesa lower cylinder body fixedly installed on the support body and an upper cylinder body which is located above the lower cylinder body and can move up and down to seal and cover the lower cylinder body; the upper cylinder body is provided with an air inlet which longitudinally penetrates through the upper cylinder body and is used for installing an inflation guide pipe; an air pressure sensor connected with a control terminal is fixedly mounted in the lower cylinder body or the upper cylinder body; and the number of the feeding mechanisms is two, and the two feeding mechanisms are symmetricallyinstalled on the two sides of the lower cylinder body and used for feeding or discharging. The full-automatic air tightness detection machine is simple in structure and convenient to use, intelligentcontrol is adopted, product packaging air tightness detection is achieved, and qualified products and inferior-quality products can be effectively classified; and the full-automatic air tightness detection machine is suitable for application and popularization.
Owner:上海磐云科技有限公司
Full-automatic running-in detection system and method for rail transit cylinder
InactiveCN110186627ACheck air tightnessEasy to add loadMeasurement of fluid loss/gain rateRailway vehicle testingEngineeringAir tightness
The invention discloses a full-automatic running-in detection system and method for a rail transit cylinder. The system comprises a gas storage tank, a total pressure sensor, a cylinder running-in detection system and a plurality of cylinder component systems, wherein the total pressure sensor is arranged at the gas outlet end of the gas storage tank; the cylinder component systems comprise a gastransmission main pipe and a cylinder; the gas transmission main pipe is hermetically communicated with the gas storage tank; a first electromagnetic valve and a pressure sensor are arranged on the gas transmission main pipe; the gas transmission main pipe is hermetically communicated with a first branch pipe and a second branch pipe; the first branch pipe is hermetically communicated with the left part of the cylinder; the second branch pipe is hermetically communicated with the right part of the cylinder; a second electromagnetic valve is arranged on the first branch pipe; and a third electromagnetic valve is arranged on the second branch pipe, and the pressure sensor, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, a left limit sensorand a right limit sensor are respectively connected with the cylinder running-in detection system. The full-automatic running-in detection system and method for the rail transit cylinder not only candetect the air tightness of a plurality of cylinders, but also can detect the air tightness of the cylinders again after a plurality of times of grinding.
Owner:南京启越机电设备有限公司
Batch detection tool and method for fuel cell bipolar plate leakage
PendingCN112284635AMisleading locationDetermination of Misleading LeakageDetection of fluid at leakage pointCollectors/separatorsFuel cellsFluorescence
The invention relates to a batch detection tool and method for fuel cell bipolar plate leakage. The tool comprises an upper end plate (8), a lower end plate (12) and a pull rod (13), a plurality of bipolar plates (10) are stacked between the upper end plate (8) and the lower end plate (12) and are fixed through the pull rod (13), and the adjacent bipolar plates (10) and the bipolar plates (10), the upper end plate (8) and the lower end plate (12) are sealed through sealing pieces (11); the upper end plate (8) and the lower end plate (12) are provided with a fluorescent color developing agent solution inlet (5), a fluorescent color developing agent solution outlet (7), a hot air inlet (6) and a hot air outlet (9). Compared with the prior art, the tool provided by the invention has the advantages that a plurality of stacked polar plates are traced and permeated through a fluorescent agent for a certain period of time, so that the air tightness of the polar plates can be efficiently detected in batches, leakage points and semi-quantitative leakage conditions are accurately positioned, the detection beat is shortened, and the polar plate screening efficiency is greatly improved.
Owner:SHANGHAI SHENLI TECH CO LTD
Air tightness pressure-maintaining test apparatus
ActiveCN105444968ACheck air tightnessSimple structureMeasurement of fluid loss/gain rateAir tightnessGas supply
The invention belongs to the detection equipment technical field and relates to an air tightness pressure-maintaining test apparatus. The air tightness pressure-maintaining test apparatus comprises a first sealing cavity and a second sealing cavity; the first sealing cavity is connected with a gas source and is used for maintaining pressure and providing gas for the second sealing cavity; the second sealing cavity is used for accommodating a test device to be tested; a connecting pipeline between the first sealing cavity and the gas source and a connecting pipeline between the first sealing cavity and the second sealing cavity are both provided with a control device; the control device is used for gas communication and gas interruption control; the air tightness pressure maintaining test apparatus further comprises a first pressure detection device and a second pressure detection device which are respectively used for detecting pressure in the first sealing cavity and the second sealing cavity. With the air tightness pressure-maintaining test apparatus adopted, the air tightness of the device to be tested can be detected quickly and accurately. The air tightness pressure maintaining test apparatus has the advantages of simple structure, low manufacturing cost and low cost.
Owner:SUZHOU SECOTE PRECISION ELECTRONICS CO LTD
Device for automatically detecting sealing performance
InactiveCN109000854ACheck air tightnessEasy to operateDetection of fluid at leakage pointSurveillance cameraSlide plate
The invention aims to provide a device for automatically detecting sealing performance. A workpiece is placed on a placement groove block, a push-down oil cylinder drives a sliding plate to move downwards, the workpiece is pressed by a press head, a first hole blocking air cylinder and a second hole blocking air cylinder are started so that holes of the workpiece are blocked by a first hole blocking ring and a second hole blocking ring, the air cylinders are pushed rightwards to rightwards push an inflatable pump, the inflatable pump is used for inflating the workpiece, the push-down oil cylinder and a lifting motor are started, the sliding plate and an installation plate are driven to descent to a water box, the workpiece is soaked in a water level, whether bubbles are generated in the water level is observed, so that the air tightness of the workpiece is detected; and moreover, a monitoring camera is arranged to monitor the water level, the air tightness of the workpiece can be efficiently and rapidly detected, and the device is convenient to operate and is applicable to production.
Owner:WUHU YUANMA AUTOMATION EQUIP CO LTD
Automobile air conditioner compressor valve group air tightness detection device
InactiveCN107677432ACheck air tightnessAirtight understandingMeasurement of fluid loss/gain rateMicrocontrollerEngineering
The invention discloses an automobile air conditioner compressor valve group air tightness detection device comprising a support plate. A push rod is arranged on the left side of the upper surface ofthe support plate. A lithium battery pack and a vacuum pump are arranged on the upper surface of the support plate in sequence from left to right. Support rods are arranged around the upper surface ofthe support plate. A holding plate is arranged on the upper end faces of the support rods. A positioning plate, positioning columns, a single chip microcomputer, a hollow detection box and a displayare arranged on the upper surface of the holding plate in sequence from left to right. The positioning columns are sleeved with pressure plates. The automobile air conditioner compressor valve group air tightness detection device has a simple structure, is convenient to operate, occupies little space in use, and can easily detect the air tightness of an automobile air conditioner compressor valvegroup. Through locking universal wheels and the push rod, the device can be easily moved. The position of a detected part can be fixed through the pressure plates. The display enables people to have an intuitive understanding of the air tightness of the detected part.
Owner:HUBEI XINXING COMPRESSOR MFG
Automobile roof air channel air-tightness detection device
InactiveCN108287041ACheck air tightnessEasy to observeDetection of fluid at leakage pointMeasurement of fluid loss/gain rateEngineeringAir tightness
The invention discloses an automobile roof air channel air-tightness detection device, which comprises a hollow-structure box body. The box body is internally provided with clear water. The top portion of the box body is provided with an opening; an outer wall at one side of the box body is connected with an air inlet pipe; the air inlet pipe is connected with an air pressure gauge through a rubber guide pipe; the rubber guide pipe is connected with a rubber pipe; and one end, away from the rubber guide pipe, of the rubber pipe is connected with a pressurization ball. An outer wall at the side, close to the air inlet pipe, of the box body is rotatably connected with a connection pipe; and the connection pipe is connected with the air inlet pipe. An inner wall at one side, away from the connection pipe, of the box body is rotatably connected with a connection rod; and one end, away from the inner wall of the box body, of the connection rod is sleeved by a plug member. The outer wall atthe side, close to the connection rod, of the box body is provided with a groove, and the groove is internally provided with a bearing. The device can test the air-tightness of an automobile roof airchannel, can observe each leakage place of the automobile roof air channel, and provides basis for improvement for production of the automobile roof air channel.
Owner:丹阳市宸泰汽车部件有限公司
Diaphragm airtightness detection automation device and use method thereof
PendingCN111947856AAirtightness detectableCheck air tightnessMeasurement of fluid loss/gain rateEngineeringAir tightness
The invention belongs to the technical field of detection tools, and relates to a diaphragm airtightness detection automation device and a use method thereof, the diaphragm airtightness detection automation device comprises a rack, a positioning tool, a detection mechanism and a conveying mechanism; the rack comprises an upper frame and a lower frame, the detection mechanism comprises a three-axisdisplacement table, a transverse support and a vacuum sucker, and the three-axis displacement table is installed in the upper frame; a transverse bracket and a vacuum chuck are mounted on the three-axis displacement table; the positioning tool comprises an air cylinder, polished shafts, a pressing plate, a connecting plate, lower jigs and upper jigs; the air cylinder is installed in the lower frame, the connecting plate is arranged on a piston rod of the air cylinder, the two ends of the connecting plate are fixedly connected with the polished shafts, the pressing plate is fixedly arranged atthe tops of the polished shafts, and the multiple upper jigs are arranged at the bottom of the pressing plate. A plurality of lower jigs are arranged at the top of the lower frame, the two sides of the diaphragm are covered with the upper jigs and the lower jigs, just like air holes communicated with the outside are formed in the lower jigs in the upper jigs, vacuumizing operation is further conducted on air in the upper jigs, and then the air tightness of the diaphragm can be detected.
Owner:安徽科博航空装备有限公司
Water immersion type automobile exhaust pipe air tightness detection device and detection method thereof
ActiveCN113483954ACheck air tightnessGuaranteed to workFluid-tightness measurement using fluid/vacuumThermodynamicsWater immersion
The invention relates to a water immersion type automobile exhaust pipe air tightness detection device disclosed by the present invention, which comprises a water immersion chamber for immersing an exhaust pipe, and a first plugging block and a second plugging block for plugging two ends of the exhaust pipe, a support plate is connected below the first plugging block, a first driving plate is fixed at the lower end of the support plate, the right side of the second plugging block is connected with a control plate, the lower portion of the control plate is connected with a second driving plate through a sliding connection mechanism, and a movable block is slidably mounted on the right side of the control plate. According to the water immersion type automobile exhaust pipe air tightness detection device, the exhaust pipe is controlled through the first plugging block and the second plugging block, rapid detection of the air tightness of the exhaust pipe can be realized through a water immersion type detection mode, air leakage can be directly observed even if air leakage is found at a joint, the air tightness of the subsequent exhaust pipe is not greatly influenced, and electrical equipment of the device is arranged above the water immersion chamber, so that subsequent normal work is ensured.
Owner:苏州苏勃检测技术服务有限公司
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