CN214789257U - Moisture-proof air-permeable valve - Google Patents

Abstract

The utility model relates to a moisture-proof breather valve, comprising a main body, the main part includes valve body, the ventilative body and sealing sleeve, the valve body is the step form inwards sunken holding chamber that forms from the top surface, holding chamber bottom is equipped with first through-hole, be equipped with the first cavity of upwards sunken under the ventilative body on the terminal surface, first cavity and first through-hole intercommunication are equipped with the second through-hole between first cavity and the ventilative body side surface, be equipped with the second cavity of undercut on the ventilative body up end, be equipped with the third through-hole between second cavity and the ventilative body side surface, the sealing sleeve cover is established on the ventilative body side surface, second through-hole and third through-hole all set up in sealing sleeve. The utility model provides a pair of damp proof ventilation valve has following advantage: simple structure, it is sealed effectual, can realize two-way ventilative, can reduce the condensation in the sealing device, improve sealing device's life.

Description

Moisture-proof air-permeable valve

Technical Field

The utility model relates to a ventilation valve technical field especially relates to a moisture-proof ventilation valve.

Background

Outdoor electronic device, LED lamps and lanterns, view lamps and lanterns, car lamps and lanterns, sealing equipment, communication equipment, sensor and some other needs ventilative waterproof dirt-proof equipment pass through balanced pressure, reduce the stress of casing sealing strip, prevent that pressure from gathering and damaging the shell and seal, keep good ventilative situation, avoided equipment to lead to the pressure to rise because of inside gas gathers, cause the destruction to the casing sealing strip for inside sensitive electronic component suffers the harm of water and dust invasion and attack. The waterproof ventilation valve has the effects of ventilation when environmental conditions change, greatly reducing the faults of electronic and inductive products caused by salt corrosion, greatly reducing fogging and condensation, having long service life in extreme environments, being free of faults and maintenance, and enabling equipment to have better heat dissipation effect.

At present, the waterproof ventilation valve technology is still not mature enough, the normal work of electronic equipment is seriously influenced, and the service life of the electronic equipment is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical defects and providing a moisture-proof air-permeable valve with simple structure and good sealing effect.

The utility model provides a moisture-proof ventilation valve, comprising a main body, the main part includes valve body, the ventilative body and sealing sleeve, the valve body is the step form inwards sunken holding chamber that forms from the top surface, holding chamber bottom is equipped with first through-hole, be equipped with the first cavity of upwards sunken under the ventilative body on the terminal surface, first cavity and first through-hole intercommunication, be equipped with the second through-hole between first cavity and the ventilative body side surface, be equipped with the second cavity of undercut on the ventilative body up end, be equipped with the third through-hole between second cavity and the ventilative body side surface, the sealing sleeve cover is established on the ventilative body side surface, second through-hole and third through-hole all set up in sealing sleeve.

For good air permeability, the upper portion of the valve body is provided with a cover cap, a third concave cavity which is sunken upwards is arranged on the lower end face of the cover cap, the upper portion of the valve body stretches into the third concave cavity, a top air-permeable gap is arranged between the top face of the valve body and the bottom face of the third concave cavity, a side air-permeable gap is arranged between the outer side face of the valve body and the inner side face of the third concave cavity, and the top air-permeable gap and the side air-permeable gap are communicated.

For the convenience of installation, the valve body bottom is equipped with the boss, and the boss bottom is equipped with the fourth through-hole, and the fourth through-hole communicates with first through-hole, and the boss lower part is equipped with the buckle, has seted up the V-arrangement groove on boss lower part and the buckle.

And in order to achieve good sealing effect, a sealing ring is arranged on the outer side of the boss.

In order to be more favorable to ventilating, first through-hole and fourth through-hole all are the funnel shape of falling.

The utility model provides a pair of damp proof ventilation valve has following advantage: simple structure, it is sealed effectual, can realize two-way ventilative, can reduce the condensation in the sealing device, improve sealing device's life, simple to operate.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic view of the ventilation state of embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 4 is a schematic structural diagram of a cap according to embodiment 2 of the present invention.

In the figure: the valve comprises a main body 1, a valve body 2, a gas permeable body 3, a sealing sleeve 4, an accommodating cavity 5, a first through hole 6, a first concave cavity 7, a second through hole 8, a second concave cavity 9, a third through hole 10, a cover cap 11, a third concave cavity 12, a top gas permeable gap 13, a side gas permeable gap 14, a boss 15, a fourth through hole 16, a buckle 17, an inverted V-shaped groove 18 and a sealing ring 19.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1:

the embodiment provides a moisture-proof ventilation valve, as shown in fig. 1 and 2, the moisture-proof ventilation valve comprises a main body 1, the main body 1 comprises a valve body 2, a ventilation body 3 and a sealing sleeve 4, the valve body 2 is in a step shape and is inwards recessed from the top surface to form a containing cavity 5, a first through hole 6 is arranged at the bottom of the containing cavity 5, a first cavity 7 which is upwards recessed is arranged on the lower end surface of the ventilation body 3, the first cavity 7 is communicated with the first through hole 6, a second through hole 8 is arranged between the side surface of the first cavity 7 and the side surface of the ventilation body 3, a second cavity 9 which is downwards recessed is arranged on the upper end surface of the ventilation body 3, a third through hole 10 is arranged between the side surface of the second cavity 9 and the side surface of the ventilation body 3, the sealing sleeve 4 is sleeved on the side surface of the ventilation body 3, and the second through hole 8 and the third through hole 10 are both arranged in the sealing sleeve 4.

Through the design, the holding chamber 5 is step-shaped and is convenient for the ventilative 3 to fix on the step, first through-hole 6 is gaseous and inside mutual passageway, sealing sleeve 4 adopts this kind of expandable material of silica gel, sealing sleeve 4 of being convenient for can expand when reaching the design value, sealing sleeve 4 cover is established and is passed through on 3 side surfaces of gas and cover second through-hole 8 and third through-hole 10, make second through-hole 8 and third through-hole 10 be in the closed condition at ordinary times, forbid the circulation of inside and outside and reduce the condensation in the sealing device, in the use, when internal pressure is greater than the design value or external pressure is greater than the design value, sealing sleeve 4 can be opened under the pressure effect, make second through-hole 8 and third through-hole 10 opened, the gas between second through-hole 8 and the third through-hole 10 can be followed the high pressure side and is gone into the low pressure side, let the gas circulation of inside and outside.

The device simple structure, it is sealed effectual, can realize two-way ventilative, can reduce the condensation in the sealing equipment.

Example 2:

in order to achieve good ventilation performance, as shown in fig. 3 and 4, in addition to the features of embodiment 1, the moisture-proof vent valve provided in this embodiment includes a cap 11 on the upper portion of the valve body 2, a third concave cavity 12 that is recessed upward is formed on the lower end surface of the cap 11, the upper portion of the valve body 2 is inserted into the third concave cavity 12, a top ventilation gap 13 is formed between the top surface of the valve body 2 and the bottom surface of the third concave cavity 12, a side ventilation gap 14 is formed between the outer side surface of the valve body 2 and the inner side surface of the third concave cavity 12, and the top ventilation gap 13 is communicated with the side ventilation gap 14.

In order to facilitate installation, a boss 15 is arranged at the bottom of the valve body 2, a fourth through hole 16 is arranged at the bottom of the boss 15, the fourth through hole 16 is communicated with the first through hole 6, a buckle 17 is arranged at the lower part of the boss 15, and an inverted V-shaped groove 18 is formed in the lower part of the boss 15 and the buckle 17.

For good sealing effect, a sealing ring 19 is arranged outside the boss 15.

In order to facilitate ventilation, the first through hole 6 and the fourth through hole 16 are in an inverted funnel shape.

Through the design, the upper part of the valve body 2 extends into the third cavity 12 to be beneficial to preventing the outside water flow from entering, and the top ventilation gap 13 and the side ventilation gap 14 can enable the inside and outside air flow to circulate and organize the outside impurities to enter to the maximum extent; the lower part of the boss 15 is provided with the buckle 17, so that the installation only needs to clamp the buckle 17, the fixation is convenient, the inverted V-shaped groove 18 enables a gap to be reserved on the boss 15, the boss 15 can be conveniently retracted inwards during the installation, and the installation is more labor-saving; the outer side of the boss 15 is provided with a sealing ring 19, so that the sealing effect is good after installation and fixation, and air leakage is prevented; the inverted funnel-shaped first through hole 6 and the fourth through hole 16 facilitate ventilation.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiments by utilizing the above disclosed technical contents without departing from the technical scope of the present invention, but all the modifications, changes and changes of the technical spirit of the present invention made to the above embodiments are also within the scope of the technical solution of the present invention.

Claims (5)

1. A moisture-proof ventilation valve comprises a main body (1), and is characterized in that the main body (1) comprises a valve body (2), ventilative (3) and sealing sleeve (4), valve body (2) are the step form and inwards cave in and form holding chamber (5) from the top surface, holding chamber (5) bottom is equipped with first through-hole (6), be equipped with first cavity (7) of upwards sunken on ventilative (3) lower terminal surface, first cavity (7) and first through-hole (6) intercommunication, be equipped with second through-hole (8) between first cavity (7) and ventilative (3) side surface, be equipped with second cavity (9) of downwards sunken on ventilative (3) up end, be equipped with third through-hole (10) between second cavity (9) and ventilative (3) side surface, sealing sleeve (4) cover is established on ventilative (3) side surface, second through-hole (8) and third through-hole (10) all set up in sealing sleeve (4).

2. The moisture resistant vent valve of claim 1 wherein: the improved valve is characterized in that a cover cap (11) is arranged on the upper portion of the valve body (2), a third concave cavity (12) which is sunken upwards is arranged on the lower end face of the cover cap (11), the upper portion of the valve body (2) stretches into the third concave cavity (12), a top ventilation gap (13) is arranged between the top face of the valve body (2) and the bottom face of the third concave cavity (12), a side ventilation gap (14) is arranged between the outer side face of the valve body (2) and the inner side face of the third concave cavity (12), and the top ventilation gap (13) is communicated with the side ventilation gap (14).

3. The moisture resistant vent valve of claim 2, wherein: the valve body (2) bottom is equipped with boss (15), and boss (15) bottom is equipped with fourth through-hole (16), and fourth through-hole (16) and first through-hole (6) intercommunication, boss (15) lower part are equipped with buckle (17), have seted up on boss (15) lower part and buckle (17) and have fallen V-arrangement groove (18).

4. The moisture resistant vent valve of claim 3 wherein: and a sealing ring (19) is arranged on the outer side of the boss (15).

5. The moisture resistant vent valve of claim 4 wherein: the first through hole (6) and the fourth through hole (16) are in inverted funnel shapes.

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