5results about How to "Check tightness" patented technology

This invention discloses an electromechanical brake with a venting device, comprising an actuator assembly, which includes a motor reduction housing, an ECU housing, and an ECU cover. The front end of the ECU housing is sealed to the ECU cover with adhesive, and the back end of the ECU housing is fixedly connected to the motor reduction housing, with a sealed connection between the back end of the ECU housing and one end of the motor reduction housing. The other end of the motor reduction housing is fixedly connected to one end of the clamp body, and the other end of the motor reduction housing is sealed to one end of a piston cylinder on the clamp body at its output end. A dustproof sealing element is provided at the other end of the piston cylinder. A venting device is installed on the back of the ECU housing, located in the gap between the ECU housing and the motor reduction housing. This venting device ensures the balance of internal and external air pressure in the electromechanical brake, thereby preventing excessive air pressure in the internal cavity of the electromechanical brake from damaging its sealing structure.

The utility model discloses a kind of safety valve individual test equipment, belong to safety valve detection technical field, including setting oil tank, test pump and safety valve to be measured, the oil outlet of oil tank is connected by first pipeline with the import of test pump intercommunication, the outlet of test pump is connected by second pipeline with the import of three-way pipe fitting;The first outlet of three-way pipe fitting is connected by third pipeline with the import of safety valve to be measured intercommunication, the outlet of safety valve to be measured is connected by fourth pipeline with the oil return flange of oil tank intercommunication, forms test loop;The second outlet of three-way pipe fitting is connected by fifth pipeline with the oil return port of oil tank intercommunication, forms oil return empty path;Switching valve assembly for oil return empty path and test loop switching is provided on three-way pipe fitting.The utility model has realized the operability of safety valve individual test, with the advantage that flexibility is high, meet the test demand of DV and DS series structure safety valve.

The utility model relates to cylinder cover oil atomizer bush detection technical field, concretely is a kind of cylinder cover oil atomizer bush detection two valve cylinder head press tool, including oil atomizer copper bush, first support plate and second support plate.The utility model is connected by latch bolt and bolt washer, bolt washer can be sleeved in the surface of latch bolt, then latch bolt is installed on the surface of first support plate by first slot, so that latch bolt is installed into positioning groove inside, so that latch bolt passes through second slot, oil atomizer copper bush, first support plate, second support plate and latch bolt can be fixed together by nut, oil atomizer copper bush can be supported in water, copper bush cover can be installed at copper bush mouth, gas nozzle can be installed at outer thread sleeve, oil atomizer copper bush is placed in water, gas nozzle is connected with gas source, if bubble is generated in water, then it can prove that oil atomizer copper bush is damaged, reach the effect that oil atomizer copper bush sealability can be conveniently detected.

This invention relates to the field of subway air conditioning testing technology, specifically disclosing an air conditioning pipeline sealing test device, comprising: a sealing cover, an inflation port, a vent, an electronic pressure gauge, and a connecting pipe. Two sealing covers are provided; one sealing cover has an inflation port communicating with its inner cavity at its front bottom, and the other sealing cover has a vent port communicating with its inner cavity at its front bottom. The electronic pressure gauge is positioned at the front top of one of the sealing covers, and its inner cavity is connected to the inner cavity of the sealing cover. The connecting pipe is located at the front middle of the sealing cover, and its inner cavity is connected to the inner cavity of the connecting pipe. This device can quickly and accurately detect the sealing performance of subway air conditioning pipelines and rapidly locate the leak point when a leak is detected, improving testing efficiency and accuracy while reducing maintenance costs and time.