A multifunctional portable nitrogen filling device

Abstract

Disclosed is a multifunctional portable nitrogen charging device. The multifunctional portable nitrogen charging device comprises an outer shell, a pressure recorder, an upper panel, a control panel, a self-locking air valve, control valves, four-way connectors, a filter, a reinforcing rib, a pressure gauge, right-angle connectors, a dryer, a lower bottom plate, a vacuum pressure pump, a side plate and valve switching connectors. The pressure gauge and the dryer are fixed to the upper panel, the filter is fixed to the lower bottom plate, and the self-locking air valve and the control valves are fixed to the control panel. The reinforcing rib and the side plate are fixed to the two sides adjacent to the control panel, the vacuum pressure pump is fixed to the side plate, and the pressure recorder is connected with the self-locking air valve through a pipeline and arranged outside the outer shell of the nitrogen charging device. The multifunctional portable nitrogen charging device is small in size and light in weight, a user can observe the pressure value of the pressure gauge or the pressure recorder to examine whether the air tightness indexes meet requirements or not, rapid nitrogen charging operation is accomplished by the use of the vacuum pressure pump, and the pressure recorder can conduct printout on test data.

Description

technical field [0001] The invention relates to an inflating device, in particular to a multifunctional portable nitrogen charging device. Background technique [0002] In order to realize product air tightness inspection and fast nitrogen filling, and this operation can be performed indoors and outdoors, a multifunctional portable nitrogen filling device is needed. [0003] Conventional nitrogen charging devices are large in size and heavy in weight, and are only suitable for indoor use. It is very inconvenient for field tests. The conventional nitrogen filling device judges the change of pressure based on the observation of the change of mercury level, the accuracy is not high, and there are reading errors, mercury is poisonous and difficult to carry, and the safety is not high. [0004] The conventional nitrogen filling device has a single function and can only fill the product with nitrogen, but cannot check the air tightness of the product, let alone print out the air ...

AI Technical Summary

Problems solved by technology

[0003] Conventional nitrogen charging devices are large in size and heavy in weight, and are only suitable for indoor use. It is very inconvenient for field tests

The conventional nitrogen charging device judges the change of pressure based on the observation of the change of mercury level, the accuracy is not high, and there are reading errors, mercury is poisonous and difficult to carry, and the safety is not high

[0004] Conventional nitrogen filling device has single function, it can only fill the product with nitrogen, but cannot check the airtightness of the product, let alone print out the airtightness index

[0005] Conventional nitrogen filling device cannot quickly fill nitrogen

Images