31results about How to "Convenient air tightness testing" patented technology

The invention discloses a portable valve leakage detection device, and belongs to the technical field of valve leakage detection. The device comprises clamping frames which are symmetrically arrangedon the upper side and the lower side. The side walls of the clamping frames on the two sides are connected through struts, and clamping grooves are formed in the phase view side walls of the clampingframes on the two sides. Through grooves are longitudinally formed in the middle of the clamping frames, sliding rods are inserted in the through grooves, so that the operation is convenient, and thetwo side interfaces of the valve can be sealed through the function of locking the two ends; supporting rods are matched with positioning frames in a locked mode, so that the operation is relatively quick, and the efficiency is high; through cooperation of one-way valves, air inlet nozzles and air pressure detection meters, it is convenient to supply air and observe changes in internal air pressure, and carry out the air tightness detection.

The invention relates to the technical field of fuel tanks, in particular to a compression tool for the fuel tank airtightness detection sealing plug and an airtightness detection tooling, which includes a casing with a lower opening, a screw, and a joint pressure plate. There is a first connection fixing plate, the top of the casing is provided with a first connection threaded hole, the upper end of the screw rod is matched and set through the first connection threaded hole, and the lower end of the screw rod is hinged with the joint pressure plate. The sealing plug pressing tool is used to compress the sealing plug, reduce the possibility of the sealing plug being not tightly sealed, and ensure the sealing effect of the sealing plug. It is especially suitable for the case where the mouth of the fuel tank is inclined, and the structure is simple and easy to use. , the manufacturing cost and the operating cost are very low; since the sealing effect of the sealing plug is guaranteed, it is more convenient to carry out the air tightness test of the fuel tank, and the accuracy of the test result is improved.

The invention relates to the field of valve switches. A lower switch valve device for precision three-way valve air tightness detection includes an up and down movement mechanism, a clamping mechanism and a valve switch mechanism; the clamping mechanism includes a mounting box, a rotating shaft, a chuck, a coupling and a clamping mechanism Cylinder; the rotating shaft is vertically arranged inside the installation box, and the outer casing of the rotating shaft is covered with a tapered outer casing, and the upper part of the outer casing has a clamping groove for the collet; the upper part of the rotating shaft is slidably installed with a collet, and The chuck is located in the housing, and the shape of the top of the chuck corresponds to the clamping groove; the lower part of the rotating shaft is connected to the coupling; the lower part of the coupling is equipped with a clamping cylinder, and the valve switch mechanism is installed on the upper part of the clamping mechanism. The switch mechanism is used to rotate the clamping mechanism to open or close the valve. The technical effect of the present invention is that the clamping cylinder pulls down the rotating shaft to move the chuck down, tightens the upper part of the chuck through the clamping groove to clamp the three-way valve, and facilitates the opening and closing of the subsequent valve.

The invention provides a power battery module airtight detection device, which includes a gas injection module, a transfer module, a first-level airtight detection module and a second-level airtight detection module. The air injection module injects compressed air with a first temperature into the power battery module. The first-level airtight detection module obtains the infrared image of the surrounding area of ​​the power battery module, and determines whether the power battery module meets the first-level airtightness requirements based on the infrared image. The second-level airtight detection module detects the power battery module that meets the first-level airtightness requirements to determine whether it meets the second-level airtightness requirements, wherein the first-level airtightness requirements are lower than the second-level airtightness requirements. confidentiality requirements.

The invention discloses a defect detecting device for a fuel gas pipe wall. The defect detecting device for the fuel gas pipe wall comprises a bottom base. The bottom base is provided with at least two support bases. Two sides of the bottom base in a length direction are provided with vertical plates. The lower ends of the vertical plates are fixedly provided with a moving mechanism which can drive the vertical plates to be moved along a horizontal direction. The opposite surfaces of the vertical plates are provided with oppositely inwards protruded rubber pads. The middle of the vertical plates is provided with a perforation. A first air inlet pipe is fixedly installed in the perforation. The outer end of the first air inlet pipe is connected with a first fan. The inner end of the first air inlet pipe is provided with an air outlet and a valve installed at the air outlet. The defect detecting device for the fuel gas pipe wall further comprises a detecting vehicle. The detecting vehicle is provided with a separating mechanism used for dividing a cavity of a fuel gas pipe to a first cavity and a second cavity. Two sides of the separating mechanism are provided with pressure sensors.The defect detecting device for the fuel gas pipe wall is capable of performing the air impermeability detection on the fuel gas pipe wall better, and looking up a defect position, and has the advantages of convenient use, high efficiency and high reliability.

The invention relates to an apparatus used for detecting test tube leakages. The apparatus is provided with a support, a test tube sucker, a vacuum pump, a sucker overturn mechanism, a water tank and an electrical control bench. The sucker overturn mechanism comprises a motor, a decelerator and an overturn body. The test tube sucker is fixedly arranged on the overturn body and is respectively in three position states of vertical, sucker surface horizontal upward and sucker surface horizontal downward. The test tube sucker surface is neatly provided with a plurality of pores. An airway communicating with the pores is provided inside the test tube sucker. The airway is connected to the vacuum pump through a connecting flexible pipe. The water tank is provided on the support. According to the invention, the test tube sucker and the vacuum pump are adopted to adhesively fix a test tube. The overturn mechanism of the test tube sucker is used to drive the test tube sucker loading the test tube to overturn and position and the bottom of the vacuum-pumping test tube is immersed into the water tank so as to inspect whether leakages exist or not. The apparatus is characterized by simple structure, reasonable construction, convenient airtight detection, fastness, accuracy and reliability and high working efficiency and is particularly suited for leakage detections towards test tubes usedas vacuum heparin tubes.

The invention discloses an air tightness detecting device, which is characterized by mainly comprising an air guide device, sealing nozzle devices and a detector (1), wherein the sealing nozzle devices are respectively arranged on the air guide device. The air tightness detecting device is simple in structure, low in cost and convenient in use and moving, air tightness of a paint bucket can be conveniently detected at any time and in any places during production, and production efficiency is improved, so that the air tightness detecting device is suitable for popularization and application.

The invention relates to a propellant gas water hammer cutting electric explosion valve. The purpose is to solve the problems of slow cutting speed, low efficiency and small pressure bearing capacity of the plugging existing in the prior art. The invention comprises a valve body, an adapter cap, an electric squib, and a plug; the side wall of the valve body is provided with a through hole; the electric squib is installed on the side wall of the valve body through the adapter cap; The working end corresponds to the through hole, and its special feature is that it also includes a cover and a diaphragm; a diaphragm is set between the through hole and the working end of the electric squib; the diaphragm is used to isolate the electric squib from the liquid medium; the inside of the valve body Equipped with liquid medium; the selection of the liquid medium requires measures to control the compatibility of the explosive gas of the electric squib tube and the liquid medium to ensure the safety of the product; the cover is installed in the valve body and is located on the left side of the through hole; the blocking cover is installed in the valve body And it is located on the right side of the through hole; the cover body and the blocking cover are both conical components with the small end facing left; a tapered ring cavity is formed between the cover body and the blocking cover, and the tapered ring cavity communicates with the through hole.