Waterproof ventilation valve

Abstract

The utility model provides a waterproof ventilation valve, which belongs to the technical field of ventilation plugs and comprises a valve cover and a connecting piece which are integrally formed, and the valve cover is arranged on one side of the connecting piece. A first ventilation cavity is formed in the valve cover, a second ventilation cavity is formed in the connecting piece, and the first ventilation cavity is communicated with the second ventilation cavity; a waterproof ventilation assembly is arranged in the second ventilation cavity and is close to the valve deck. The waterproof ventilation valve is novel in structure, low in production cost and high in working stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of ventilation plugs, in particular to a waterproof breathable valve. Background Art

[0002] A waterproof breathable valve is a device used to protect the inside of a device from moisture, dust and harmful substances, and it allows gas to flow freely to maintain pressure balance inside and outside the device. Therefore, a waterproof breathable valve is an important protective component that can provide necessary environmental protection while ensuring the safe operation of the device. The existing waterproof breathable valve usually includes a valve cover and a connector, and the connector is used to install the breathable valve on the application device. However, the existing valve cover and the connector are usually a split structure, and the breathable membrane is arranged on the valve cover. For example, the prior art CN215352580U discloses a second-generation waterproof breathable valve, including: a main body, a breathable membrane arranged in the main body, a sealing member arranged in contact with the breathable membrane, and a snap-fit ​​member for snapping the main body, the circumferential side wall of the snap-fit ​​member is provided with a plurality of first openings along the circumferential direction, the inner ring of the snap-fit ​​member is provided with a plurality of snap-fit ​​bosses staggered with the first opening along the circumferential direction, the side of the snap-fit ​​boss can block the first opening, the bottom of the snap-fit ​​boss can press the seal, and a second opening is formed between two adjacent snap-fit ​​bosses, and the size of the second opening is smaller than the size of the first opening. The breathable valve can prevent water flow from directly impacting the breathable membrane and can also effectively reduce water accumulation in the ventilation plug. However, the breathable valve has a complex structure and high manufacturing cost; the buckle and the main body are easily separated and fall off after long-term use, resulting in the breathable valve not being able to be used normally.

[0003] Therefore, it is necessary to improve the waterproof breathable valve to overcome the defects of the prior art. Utility Model Content

[0004] In order to overcome the problems existing in the related art, the purpose of the utility model is to provide a waterproof breathable valve, which has a novel structure, a low production cost and high working stability.

[0005] A waterproof breathable valve, comprising:

[0006] The valve cover and the connecting piece are integrally formed, and the valve cover is arranged on one side of the connecting piece; a first air permeable cavity is arranged in the valve cover, and a second air permeable cavity is arranged in the connecting piece, and the first air permeable cavity and the second air permeable cavity are interconnected; a waterproof and breathable component is arranged in the second air permeable cavity, and the waterproof and breathable component is arranged close to the valve cover.

[0007] In a preferred technical solution of the utility model, the valve cover comprises a first cover body and a second cover body which are arranged opposite to each other, the first cover body and the second cover body are arranged at an interval, a connecting boss is arranged between the first cover body and the second cover body, and one side of the first cover body is connected to the connecting member;

[0008] The first air permeable cavity includes four air permeable openings, and the four air permeable openings are arranged between the first cover body and the second cover body along the circumference of the valve cover.

[0009] In a preferred technical solution of the utility model, a chamfer is provided at an edge of one side of the second cover body away from the first cover body, the angle of the chamfer is 30°-45°, and the length of the chamfer is 3mm-6mm.

[0010] In a preferred technical solution of the present invention, the minimum distance between the first cover body and the second cover body is greater than 2 cm.

[0011] In a preferred technical solution of the utility model, the second air permeable cavity includes a first channel and a second channel that are interconnected, the first channel is arranged in the connecting member, the second channel is arranged at the connection between the connecting member and the first cover body, and the diameter of the second channel is smaller than the diameter of the first channel.

[0012] In a preferred technical solution of the present utility model, the second channel extends along the axial direction of the connecting member to one side of the second cover body.

[0013] In a preferred technical solution of the utility model, the waterproof and breathable component includes a mounting ring, and along the axial direction of the mounting ring, a first buffer structure, a waterproof and breathable membrane and a second buffer structure are sequentially arranged in the mounting ring, and the first buffer structure and the second buffer structure can be detachably arranged in the mounting ring.

[0014] In a preferred technical solution of the present invention, both the first buffer structure and the second buffer structure are filter screens, and the mesh number of the filter screens is 80-120 meshes.

[0015] In a preferred technical solution of the utility model, a clamping groove is provided in the second air permeable cavity, and the mounting ring is clamped in the clamping groove.

[0016] In a preferred technical solution of the utility model, a sealing ring is provided on the outer wall of the connecting piece.

[0017] The beneficial effects of the utility model are:

[0018] The utility model provides a waterproof breathable valve, which includes an integrally formed valve cover and a connecting piece, wherein the valve cover is arranged on one side of the connecting piece. A first breathable cavity is arranged in the valve cover, and a second breathable cavity is arranged in the connecting piece, wherein the first breathable cavity and the second breathable cavity are interconnected; a waterproof breathable component is arranged in the second breathable cavity, and the waterproof breathable component is arranged close to the valve cover. The waterproof breathable valve has a novel structure, wherein the connecting piece and the valve cover are produced by integrally forming, and the manufacturing is convenient, and there is no need to manufacture a connecting structure between the valve cover and the connecting piece, which can simplify the production steps of the waterproof breathable valve and reduce the production cost. In addition, since the valve cover and the connecting piece are an integral structure, the valve cover and the connecting piece will not separate even if they are used for a long time, which makes the breathable valve have a high working stability and can be used for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the waterproof breathable valve provided by the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the waterproof breathable valve provided by the utility model;

[0021] Figure 3 It is a structural schematic diagram of the valve cover provided by the utility model without the second cover body;

[0022] Figure 4 It is a schematic diagram of the structure of the waterproof and breathable assembly provided by the utility model arranged at the connecting piece;

[0023] Figure 5 It is a cross-sectional view of the waterproof and breathable component provided by the utility model when the waterproof and breathable component is not included;

[0024] Figure 6 It is a structural schematic diagram of the waterproof and breathable component provided by the utility model.

[0025] Reference numerals:

[0026] 1. Valve cover; 11. First cover body; 12. Second cover body; 13. Connecting boss; 14. Chamfer; 2. Connector; 21. Slot; 3. First air cavity; 31. Air port; 4. Second air cavity; 41. First channel; 42. Second channel; 5. Sealing ring; 6. Waterproof and breathable assembly; 61. First buffer structure; 62. Waterproof and breathable membrane; 63. Second buffer structure; 64. Mounting ring. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0028] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0029] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] Example

[0031] The existing waterproof breathable valve usually includes a valve cover and a connector, and the valve cover and the connector are usually a split structure, and the breathable membrane is arranged on the valve cover. For example, the prior art CN215352580U discloses a second-generation waterproof breathable valve, including: a main body, a breathable membrane arranged in the main body, a sealing member arranged in contact with the breathable membrane, and a buckle for buckling the main body, the circumferential side wall of the buckle is provided with a plurality of first openings along the circumferential direction, the inner ring of the buckle is provided with a plurality of buckle bosses staggered with the first openings along the circumferential direction, the side of the buckle boss can block the first opening, the bottom of the buckle boss can press the sealing member, and a second opening is formed between two adjacent buckle bosses, and the size of the second opening is smaller than the size of the first opening. The breathable valve can prevent water flow from directly impacting the breathable membrane, and can also effectively reduce the water accumulation phenomenon of the ventilation plug. However, the breathable valve has a complex structure and high manufacturing cost; the buckle and the main body are easy to separate and fall off from each other after long-term use, resulting in the breathable valve being unable to be used normally. Based on this, the present application provides a waterproof breathable valve.

[0032] like Figure 1-Figure 6 As shown, the waterproof breathable valve comprises:

[0033] The valve cover 1 and the connecting member 2 are integrally formed, and the valve cover 1 is arranged on one side of the connecting member 2; a first air permeable cavity 3 is arranged in the valve cover 1, and a second air permeable cavity 4 is arranged in the connecting member 2, and the first air permeable cavity 3 and the second air permeable cavity 4 are interconnected; a waterproof and breathable component 6 is arranged in the second air permeable cavity 4, and the waterproof and breathable component 6 is arranged close to the valve cover 1.

[0034] More specifically, the valve cover 1 and the connector 2 of the present application can be integrally injection molded, and the specific material can be any one of polypropylene, polyethylene or polycarbonate, or a mixture of other materials.

[0035] The waterproof and breathable valve produced by one-piece injection molding has the advantages of durable and stable structure, reduces the coordination of parts and simplifies the process. In addition, the waterproof and breathable valve made of PP / PC material has the characteristics of flame retardancy, oxidation resistance, excellent electrical properties and good weather resistance. It also has high strength, elastic coefficient and high impact strength, so that it can be used in a wide temperature range.

[0036] The above-mentioned waterproof breathable valve includes an integrally formed valve cover 1 and a connecting member 2, and the valve cover 1 is arranged on one side of the connecting member 2. A first breathable cavity 3 is arranged in the valve cover 1, and a second breathable cavity 4 is arranged in the connecting member 2, and the first breathable cavity 3 and the second breathable cavity 4 are interconnected; a waterproof breathable component 6 is arranged in the second breathable cavity 4, and the waterproof breathable component 6 is arranged close to the valve cover 1. The waterproof breathable valve has a novel structure, and the connecting member 2 and the valve cover 1 are produced by integral molding, which is convenient to manufacture, and there is no need to manufacture a connecting structure between the valve cover 1 and the connecting member 2, which can simplify the production steps of the waterproof breathable valve and reduce the production cost. In addition, since the valve cover 1 and the connecting member 2 are an integral structure, the valve cover 1 and the connecting member 2 will not separate even if used for a long time, which makes the breathable valve have a higher working stability and can be used for a long time.

[0037] In a specific embodiment, the valve cover 1 includes a first cover body 11 and a second cover body 12 that are arranged opposite to each other, the first cover body 11 and the second cover body 12 are arranged at an interval, a connecting boss 13 is arranged between the first cover body 11 and the second cover body 12, and one side of the first cover body 11 is connected to the connecting member 2; more specifically, the minimum distance between the first cover body 11 and the second cover body 12 is greater than 2 cm. The setting of this distance can ensure that the exhaust volume of the first air permeable cavity 3 is within a large range, ensuring the exhaust effect of the waterproof air permeable valve.

[0038] The first air permeable cavity 3 includes four air permeable openings 31 , and the four air permeable openings 31 are arranged between the first cover body 11 and the second cover body 12 along the circumference of the valve cover 1 .

[0039] The first cover body 11 and the second cover body 12 of the present application are an integrated structure. By setting four air holes 31, the present application can increase the exhaust volume of the waterproof air valve, and the product is beautiful, saves materials, and has a low manufacturing cost.

[0040] Furthermore, a chamfer 14 is provided at an edge of one side of the second cover body 12 away from the first cover body 11 , the angle of the chamfer 14 is 30°-45°, and the length of the chamfer 14 is 3mm-6mm.

[0041] A chamfer 14 is provided on the edge of the first cover body 11 to facilitate demoulding after injection molding. Moreover, the provision of the chamfer 14 can increase the structural stability of the valve cover 1, making the valve cover 1 more durable.

[0042] Specifically, the second air permeable cavity 4 includes a first channel 41 and a second channel 42 that are interconnected. The first channel 41 is arranged in the connecting member 2, and the second channel 42 is arranged at the connection between the connecting member 2 and the first cover body 11. The diameter of the second channel 42 is smaller than the diameter of the first channel 41.

[0043] Furthermore, the second channel 42 extends along the axial direction of the connecting member 2 to one side of the second cover body 12 .

[0044] The diameter of the second channel 42 is smaller than that of the first channel 41, which can reduce the flow area of ​​the gas, so that the pressure of the gas increases and the flow rate increases when the gas flows through the second channel 42, thereby improving the exhaust capacity of the waterproof breathable valve. The second channel 42 extends along the axis of the connector 2 to one side of the second cover 12, which can form more exhaust space at the second cover 12, and can reduce the impact of the airflow on the waterproof breathable component 6, thereby extending the service life of the waterproof breathable component 6.

[0045] Furthermore, the waterproof breathable component 6 includes a mounting ring 64, and along the axial direction of the mounting ring 64, the mounting ring 64 is provided with a first buffer structure 61, a waterproof breathable membrane 62, and a second buffer structure 63 in sequence, and the first buffer structure 61 and the second buffer structure 63 are both detachably arranged in the mounting ring 64. The detachable first buffer structure 61 and the second buffer structure 63 are convenient for replacement in later use, and are easy to use.

[0046] In a more preferred embodiment, the first buffer structure 61 and the second buffer structure 63 are both filter screens, and the mesh number of the filter screens is 80-120 meshes.

[0047] The first buffer structure 61 and the second buffer structure 63 of the present application can prevent water flow from directly impacting the waterproof breathable membrane 62 while ensuring the ventilation effect, thereby extending the service life of the waterproof breathable membrane 62.

[0048] The mounting ring 64 of the present application can be made of plastic. In another embodiment, the first buffer structure 61, the waterproof breathable membrane 62 and the second buffer structure 63 can be fixed to the mounting ring 64 by laser welding. The laser welding method has higher structural stability and the waterproof breathable component 6 is more durable.

[0049] Further, a slot 21 is provided in the second vent cavity 4, and the mounting ring 64 is engaged in the slot 21. The mounting ring 64 can be interference fit with the slot 21 to achieve mutual fixation between the waterproof vent assembly 6 and the connector 2. In another embodiment, the mounting ring 64 can also be fixed in the slot 21 by laser welding.

[0050] Furthermore, the outer wall of the connector 2 is provided with a sealing ring 5. The connector 2 of the present application can be a cylinder with a threaded outer wall, and the sealing ring 5 can increase the sealing between the connector 2 and the device using the waterproof breathable valve, thereby improving the waterproof effect.

[0051] Unless otherwise specifically stated, the relative arrangement of the components and steps, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be regarded as part of the authorized specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures. The above is only a preferred embodiment of the utility model and is not intended to limit the utility model.

[0052] For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A waterproof breathable valve, characterized in that: include: A valve cover (1) and a connecting piece (2) are integrally formed, wherein the valve cover (1) is arranged on one side of the connecting piece (2); a first air permeable cavity (3) is arranged in the valve cover (1), a second air permeable cavity (4) is arranged in the connecting piece (2), and the first air permeable cavity (3) and the second air permeable cavity (4) are interconnected; a waterproof and breathable component (6) is arranged in the second air permeable cavity (4), and the waterproof and breathable component (6) is arranged close to the valve cover (1).

2. The waterproof breathable valve according to claim 1, characterized in that: The valve cover (1) comprises a first cover body (11) and a second cover body (12) which are arranged opposite to each other, the first cover body (11) and the second cover body (12) are arranged at an interval, a connecting boss (13) is arranged between the first cover body (11) and the second cover body (12), and one side of the first cover body (11) is connected to the connecting member (2); The first air permeable cavity (3) comprises four air permeable openings (31), and the four air permeable openings (31) are arranged between the first cover body (11) and the second cover body (12) along the circumference of the valve cover (1).

3. The waterproof breathable valve according to claim 2, characterized in that: A chamfer (14) is provided at an edge of one side of the second cover body (12) away from the first cover body (11); the angle of the chamfer (14) is 30°-45°, and the length of the chamfer (14) is 3mm-6mm.

4. The waterproof breathable valve according to claim 2, characterized in that: The minimum distance between the first cover body (11) and the second cover body (12) is greater than 2 cm.

5. The waterproof breathable valve according to claim 2, characterized in that: The second air permeable cavity (4) comprises a first channel (41) and a second channel (42) which are interconnected, the first channel (41) being arranged in the connecting member (2), the second channel (42) being arranged at the connection between the connecting member (2) and the first cover body (11), and the diameter of the second channel (42) being smaller than the diameter of the first channel (41).

6. The waterproof breathable valve according to claim 5, characterized in that: The second channel (42) extends along the axial direction of the connecting member (2) to one side of the second cover body (12).

7. The waterproof breathable valve according to any one of claims 1 to 6, characterized in that: The waterproof breathable component (6) comprises a mounting ring (64), wherein a first buffer structure (61), a waterproof breathable membrane (62) and a second buffer structure (63) are sequentially arranged in the mounting ring (64) along the axial direction of the mounting ring (64), and the first buffer structure (61) and the second buffer structure (63) are both detachably arranged in the mounting ring (64).

8. The waterproof breathable valve according to claim 7, characterized in that: The first buffer structure (61) and the second buffer structure (63) are both filter screens, and the mesh number of the filter screens is 80-120 meshes.

9. The waterproof breathable valve according to claim 7, characterized in that: A clamping groove (21) is provided in the second air permeable cavity (4), and the mounting ring (64) is clamped in the clamping groove (21).

10. The waterproof breathable valve according to any one of claims 1 to 6, characterized in that: The outer wall of the connecting piece (2) is provided with a sealing ring (5).

Images