Manufacturing method of breather valve
A manufacturing method and a breathing valve technology, which are applied in the field of fastener manufacturing, can solve the problems of elastic deformation of assembly, loose air-permeable film assembly, shaking of cover, etc., and achieve the effect of enhancing corrosion resistance.
Active Publication Date: 2020-03-06
EXCELLENT FASTENING SYST SHANGHAI
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Problems solved by technology
[0004] The above-mentioned patents are assembled by buckles. This assembly has elastic deformation in assembly. Due to the material problem of the deformed cover, it is difficult to completely restore the original shape, which in turn causes the cover to shake on the bolts, and the breathable membrane is not assembled tightly. The ventilation blocking function of the ventilation valve fails
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[0044] In order to make the purpose, technical solutions and beneficial effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples and accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0045] A breathing valve, such as figure 1 with figure 2 shown, including:
[0046] Bolt 1, bolt 1 includes a head 2 and a threaded section 3 integrally arranged on one side of the head 2; an air passage 4 is opened through the bolt 1; a sealing ring 5 is fixed on the side of the head 2 close to the threaded section 3;
[0047] The top cover 6, the top cover 6 is press-fitted on the side of the head 2 away from the threaded section 3; the top cover 6 covers the end of the air passage 4 close to the head 2; the top cover 6 is provided with a vent hole 7;
[0048] The diaphragm 8, the diaphragm 8 is fitted and fixed on the opening of the air duct 4 near the head 2, and co...
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The invention discloses a manufacturing method of a breather valve and relates to the technical field of fastener manufacturing. The manufacturing method comprises the following steps of S1, manufacturing a metal rod into a bolt and a top cap through integral machining; S2, fixing a sealing ring to the side face, close to a thread section, of the head; S3, coating glue to the periphery of an opening of an air duct and fixing a membrane to the position covering the opening of the air duct through glue; and S4, arranging the top cap on the membrane, and pressing the top cap downward to press a pressure ring into a pressing groove in an interference fit mode. The manufacturing method of the breather valve is provided for solving the problems that a breathable membrane is mounted not tightly and a breather valve is out of operation in the prior art. According to the manufacturing method, the pressure ring is pressed in the pressing groove in the interference fit mode, the top cap is mounted on the bolt in a press-fitting mode, stable installation of the top cap is ensured, the breathable membrane is attached and fixed, and the normal breathable working performance of the breather valveis ensured.
Description
technical field [0001] The invention relates to the technical field of fastener manufacturing, more specifically, it relates to a manufacturing method of a breathing valve. Background technique [0002] Electric control boxes on new energy vehicles are often exposed to harsh environmental conditions, such as high temperature, high pressure, oil pollution, etc., which will cause pressure to build up inside the electric control box and exert stress on the seals. Over time, the stress can cause seals to fail, allowing contaminants to enter the electrical enclosure and damage electronics within it. [0003] For the existing breathing valve, such as the Chinese patent whose patent publication number is CN204878932U, it discloses a kind of ventilation valve for the container, including: bolts, the bolts include a bolt head at its upper part, a threaded part at its lower part, And the hollow part that runs through the bolt longitudinally; the cover, the cover is arranged above the...
Claims
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IPC IPC(8): F16K27/00B23P15/00
CPCF16K27/00B23P15/001
Inventor 江波仲朝江刘亮
Owner EXCELLENT FASTENING SYST SHANGHAI