Novel moisture-proof and breathable balance valve

Abstract

The utility model discloses a novel moisture -resistant breather balance valve, include: valve body, waterproof air -permeable membrane, dustproof air -permeable cover and moisture -resistant subassembly, through the ingenious design of mechanical type moisture -resistant subassembly, realized the intelligent balance of moisture -resistant and air -permeable function. Under normal pressure state, spring pushes and seals the close -fitting valve body through -hole of sealing washer, effectively blocks the penetration path of outside humid air, when the inside appears negative pressure, external air pressure can overcome the spring pre -tension and opens the channel, imports the dry air of waterproof air -permeable membrane filtration, in time balance pressure, and the structural design of this balance valve fully considers the convenience of production assembly and maintenance. The moisture -resistant subassembly preassembles sealing washer, sealing sheet, spring and bottom plug into an independent module that can be integrally assembled and disassembled, greatly simplifies the final assembly process with valve body, reduces the possibility of parts misloading or missing.

Claims

1. A novel moisture-barrier and breathable balancing valve, characterized in that, include: Valve body (1), waterproof and breathable membrane (2), dustproof and breathable cover (3), and moisture-blocking component (4); the valve body (1) has an inverted T-shaped through hole inside; the dustproof and breathable cover (3) is assembled on the top of the valve body (1); the waterproof and breathable membrane (2) is disposed inside the valve body (1) and covers the through hole; the moisture-blocking component (4) is disposed at the bottom of the through hole; The moisture barrier component (4) includes a sealing gasket (41), a sealing plate (42), a spring (43), and a bottom plug (44); the sealing gasket (41), the sealing plate (42), the spring (43), and the bottom plug (44) are arranged sequentially from top to bottom; the bottom plug (44) is provided with a vent hole; The outer peripheral wall of the bottom plug (44) and the bottom inner peripheral wall of the through hole of the valve body (1) are interference fit; The two ends of the spring (43) abut against the sealing plate (42) and the bottom plug (44) respectively, so that the moisture barrier assembly (4) forms a pre-assembled whole.

2. The novel moisture-proof and breathable balancing valve according to claim 1, characterized in that: The dustproof and breathable cover (3) has multiple vent holes on its periphery and top.

3. The novel moisture-proof and breathable balancing valve according to claim 1, characterized in that: The valve body (1) has an installation thread on the outer peripheral wall at the bottom and is equipped with a sealing ring.

4. The novel moisture-proof and breathable balancing valve according to claim 2, characterized in that: The vent hole of the bottom plug (44) is coaxially arranged with the through hole of the valve body (1).

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