CN115929964A

CN115929964A - Ventilation valve

Info

Publication number: CN115929964A
Application number: CN202211312207.3A
Authority: CN
Inventors: 徐小元; 余志华; 楼春芳
Original assignee: Jiaxing Shengyang Electric Co Ltd
Current assignee: Jiaxing Shengyang Electric Co Ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-04-07

Abstract

The invention discloses a vent valve, which comprises a main body with a central flow passage, a breathable film arranged in the central flow passage and a valve cover arranged on the air outlet end of the main body, and is characterized in that: the device also comprises a shielding valve and a pressure ring; the two ends of the shielding valve are respectively an open end and a closed end, the open end of the shielding valve faces the breathable film and is covered on the breathable film, and the closed end separates the breathable film from external air and is provided with a cross-shaped notch which is expanded to ventilate after being pressed; the both ends of clamping ring support respectively and lean on sheltering from valve and valve gap to compress tightly the clamping ring with sheltering from the valve, have air outlet channel on the end of giving vent to anger of main part. The invention obviously prolongs the service life of the breathable film and the whole breathable valve.

Description

Ventilation valve

Technical Field

The invention relates to the field of valve bodies, in particular to a ventilation valve.

Background

The air-permeable valve is a mounting part which can be sealed and formed by combining a waterproof air-permeable membrane with other materials such as plastic, metal, silica gel and the like in the forms of injection molding, ultrasonic welding and the like.

In the ventilation valve on the market at present, the ventilated membrane is directly exposed in the air, leads to dust, water, the greasy dirt in the air to contact with the ventilated membrane easily to adhere to on the ventilated membrane, lead to ventilation valve air permeability to descend, damage the inefficacy easily under the corruption of dust, water, greasy dirt simultaneously, lead to ventilation valve's life to show the reduction. Therefore, the structure of the ventilation valve in the prior art needs to be further improved.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the vent valve, which can hide the vent film, and obviously prolong the service life of the vent film and the service life of the whole vent valve.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a ventilation valve, includes the main part that has central runner, sets up the ventilated membrane in central runner and sets up the valve gap on the main part is given vent to anger and is held, characterized by: the device also comprises a blocking valve and a pressure ring;

the two ends of the shielding valve are respectively an open end and a closed end, the open end of the shielding valve faces the breathable film and is covered on the breathable film, and the closed end separates the breathable film from external air and is provided with a cross-shaped notch which is expanded to ventilate after being pressed;

the both ends of clamping ring support respectively and lean on sheltering from valve and valve gap to compress tightly clamping ring and sheltering from the valve, have air outlet channel on the end of giving vent to anger of main part.

Preferably, the blocking valve is a silicone valve.

Preferably, the opening end of the blocking valve is provided with an outward turned flanging, and the flanging is attached to the edge part of the breathable film and is simultaneously contacted and pressed by the pressing ring.

Preferably, the inner surface of the valve cover is provided with a plurality of projections which are projected from the inner surface of the valve cover and against which the end part of the press ring is abutted.

Preferably, the center runner of main part includes interior section and outer section, the diameter of outer section is greater than the diameter of interior section, and the end of giving vent to anger of main part is the one end of outer section dorsad interior section, ventilated membrane, shielding valve and clamping ring all are located the outer section.

Preferably, the main body is divided into a head and a spiral rod body along the axial direction of the main body, the head is of a hexagonal structure and is connected and rotated by a wrench, and the valve cover is also of a hexagonal structure and is clamped at one end of the head, which is back to the spiral rod body.

Preferably, the outer side wall of the head is provided with a groove, the groove is internally provided with a clamping block, and the lower surface of the valve cover is provided with a clamping ring clamped with the clamping block.

The invention has the advantages that: the blocking valve is compressed tightly through the press ring and the valve cover, and the cover is arranged on the breathable film, so that the breathable film can be isolated from the external environment, the problem that the breathable film is corroded due to contact of ash layers, water or oil stains in the external air is reduced, and the service life of the breathable film and the breathable valve is prolonged.

Drawings

Fig. 1 is an exploded schematic view of a vent valve provided in the present embodiment;

FIG. 2 is a schematic cross-sectional view of a venting valve provided in the present embodiment;

FIG. 3 is a schematic view of a main body provided in the present embodiment;

fig. 4 is a schematic view of the valve cover provided in the present embodiment.

Detailed Description

The breather valve of the present invention will be further described with reference to fig. 1 to 4.

A ventilation valve comprises a main body 1 with a central flow passage 14, a ventilation film 2 arranged in the central flow passage 14 and a valve cover 5 arranged on the air outlet end of the main body 1, and is characterized in that: a shutter valve 3 and a pressing ring 43 are also included.

The center flow passage 14 of the body 1 penetrates both ends of the body 1 and includes an inner section 111 and an outer section 112, the outer section 112 having a diameter greater than that of the inner section 111 to form a mounting step 113 between the outer section 112 and the inner section 111. The air outlet end of the main body 1 is the end of the outer section 112 facing away from the inner section 111. The air permeable membrane 2 is of a circular sheet structure, the edge part of the air permeable membrane 2 is fixed on the mounting step 113 in an ultrasonic welding mode, and the middle part of the air permeable membrane is positioned in the central flow channel 14 to play a role in filtering; meanwhile, the shielding valve 3 and the pressing ring 43 are both arranged in the outer section 112, so that the hidden installation of the shielding valve 3, the pressing ring 43 and the breathable film 2 is realized.

The shielding valve 3 is of an annular structure coaxial with the central flow channel 14, two ends of the shielding valve 3 are respectively an open end and a closed end 32, the shielding valve 3 is positioned on one side of the breathable film 2 opposite to the inner section 111, the open end of the shielding valve 3 faces the breathable film 2 and is covered on the breathable film 2, namely, the annular end wall of the open end of the shielding valve 3 is in pressing contact with the edge part of the breathable film 2, the closed end 32 blocks the outer section 112 to isolate the breathable film 2 from the outside air, and meanwhile, the closed end 32 is provided with a cross-shaped notch 311 which is expanded and breathable after being pressed; two ends of the pressing ring 43 respectively abut against the shielding valve 3 and the valve cover 5 so as to tightly press the pressing ring 43 and the shielding valve 3; there is an outlet channel 123 on the outlet end of the body.

Specifically, the blocking valve 3 is a silica gel valve, the silica gel material has elasticity, and after the material structure is pressed down, the cross-shaped notch 311 can be expanded, so that the ventilation effect is realized, and the effective sealing and ventilation functions are realized.

The flanging 31 that has outside book on the opening end that shelters from valve 3, flanging 31 and ventilated membrane 2's border laminating supplies clamping ring 43 contact, supports simultaneously to press, will shelter from flanging 31, the border of ventilated membrane 2 of valve 3 through clamping ring 43 and further compress tightly on central runner 14's installation step 113, the flanging 31 that shelters from valve 3 can increase and ventilated membrane 2 between the area of contact, make the border position of ventilated membrane 2 and the installation step 113 between laminate more inseparable.

The inner surface of the valve cover 5 is provided with a plurality of bumps 52 protruding from the inner surface of the valve cover 5, and the plurality of bumps 52 are uniformly arranged around the center of the central flow channel 14 in a circumferential manner, so that one ends of all the bumps 52, which are back to the valve cover 5, are pressed against the end part of the pressing ring 43, the pressing ring 43 and the shielding valve 3 are pressed, and meanwhile, the pressing ring 4 is separated from the inner surface of the valve cover 5, so that gas can flow out conveniently.

Further, in order to facilitate the screw-type connection of the present invention, the main body 1 is divided into a screw-type rod body 11 and a head 12 along the axial direction thereof, the head 12 corresponds to the outer section 112, and the screw-type rod body 11 corresponds to the inner section 111; the head 12 is of a hexagonal configuration to facilitate connection and rotation of a wrench. The valve cap 5 is also of hexagonal configuration and is connected by snap-fit means to the end of the head 12 facing away from the screw shank 11.

Of the six side walls of the head 12, three side walls have grooves 121, triangular latches 122 are provided in the grooves 121, and snap rings 51 which snap with the latches 122 are provided on the lower surface of the bonnet 5 and outside the protrusions 52, thereby achieving the snap-fit connection of the bonnet 5 on the body 1. The groove 121 is configured to receive the snap ring 51, so as to prevent the snap ring 51 from protruding from the side wall of the head 12 and affecting the connection of the wrench.

The air outlet channel 123 is opened on the end surface of the head 12 facing away from the spiral rod body 11.

The engaging block 122 has a right triangle structure, and the inclined surface of the right triangle is located outside to form a guiding surface 1221 that guides and deforms when the snap ring 51 is engaged.

The joint part of the head part 12 and the spiral rod body 11 is provided with a sealing ring 6 to improve the sealing performance of the invention in a connection state.

In the specific use process, the blocking valve 3 is tightly pressed and positioned in the outer section 112 through the pressing ring 4 and the valve cover 5, and is covered on the breathable film 2 to separate the breathable film 2 from the outside air, so that the problem that the breathable film 2 is corroded due to contact with ash layers, water or oil stains in the outside air is solved, and the service lives of the breathable film 2 and the breathable valve are prolonged; secondly, the clamping ring and the shielding valve can be fixed after the valve cover is clamped, and the valve has the characteristic of convenience in assembly.

Unless otherwise specified, in the present invention, if the terms "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the orientation or positional relationship in the present invention are only used for exemplary illustration and are not to be construed as limiting the present patent, and those skilled in the art can understand the specific meaning of the above terms according to the specific situation by combining the drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The utility model provides a ventilation valve, includes the main part that has central runner, sets up the ventilated membrane in central runner and sets up the valve gap on the main part is given vent to anger and is held, characterized by: the device also comprises a blocking valve and a pressure ring;

2. The vent valve of claim 1, wherein: the blocking valve is a silica gel valve.

3. The vent valve of claim 1, wherein: the opening end of the blocking valve is provided with an outward turned flanging, and the outward turned flanging is attached to the edge part of the breathable film and is simultaneously contacted and pressed by the pressing ring.

4. The vent valve of claim 1, wherein: the inner surface of the valve cover is provided with a plurality of projections which are protruded out of the inner surface of the valve cover and against which the end part of the pressure ring is abutted.

5. The vent valve of claim 1, wherein: the center flow channel of main part includes inner segment and outer section, the diameter of outer section is greater than the diameter of inner segment, and the end of giving vent to anger of main part is the one end of outer section inside segment dorsad, the ventilated membrane, shelter from valve and clamping ring and all be located the outer section.

6. The vent valve of claim 1, wherein: the main part extends its axial and divide into head and the spiral body of rod, the head is the hexagon structure in order to supply the spanner to connect, rotate, the valve gap is the hexagon structure equally to the joint is served in one of the head dorsad spiral body of rod.

7. The vent valve of claim 6, wherein: the outer side wall of the head is provided with a groove, a clamping block is arranged in the groove, and the lower surface of the valve cover is provided with a clamping ring clamped with the clamping block.