Waterproof ventilation valve with mud and gravel prevention function based on three-layer protection

Abstract

The utility model discloses a three-layer protection-based waterproof ventilation valve with a mud and gravel prevention function. The three-layer protection-based waterproof ventilation valve comprises a valve body, a first-stage protection end cover, second-stage protection filter cotton and third-stage protection ventilation film paper. The valve body is provided with a threaded connection end and a waterproof ventilation end. A step ring groove communicated with the hollow cavity of the valve body is formed in the waterproof breathable end, and the third-level protective breathable film paper is attached to the interior of the step ring groove. A notch is formed in the groove wall of the step ring groove, and the shape of the secondary protection filter cotton is similar to that of the notch; the end face of the step ring groove is further provided with a ventilation channel corresponding to the notch. The first-stage protection end cover covers the waterproof ventilation end of the valve body and is provided with an annular retaining wall, and the annular retaining wall is arranged around the step annular groove. According to the waterproof ventilation valve, the three protective barriers are arranged, so that external mud and gravel are difficult to pass through the three protective barriers to reach the interior of the valve body, and the grade of preventing the mud and gravel from entering the interior of the valve body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof breathable valves, in particular to a waterproof breathable valve with a mud, sand and stone prevention function based on three-layer protection. Background Art

[0002] Traditional waterproof and breathable valves are at risk of mud and sand intrusion during vehicle operation, resulting in seal or ventilation failure. Mud and gravel-resistant waterproof and breathable valves can effectively reduce or eliminate the intrusion of foreign matter such as mud, gravel, and other foreign matter, ensuring that foreign matter does not affect the seal and ventilation.

[0003] How to design and develop a waterproof and breathable valve with anti-mud and sand function based on three-layer protection to improve the level of prevention of mud and sand from invading the interior of the valve body is a technical problem that needs to be solved. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a waterproof breathable valve with mud and sand prevention function based on three-layer protection, thereby improving the level of preventing mud and sand from invading the interior of the valve body.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A waterproof breathable valve with three-layer protection and anti-mud and sand function, comprising: a valve body, a first-level protection end cover, a second-level protection filter cotton, and a third-level protection breathable membrane paper;

[0007] The valve body is a hollow cavity structure with two ends open, and the valve body has a threaded connection end and a waterproof and breathable end;

[0008] The waterproof and breathable end forms a step ring groove that penetrates the hollow cavity of the valve body, and the three-level protective breathable film paper is attached to the inside of the step ring groove;

[0009] A notch is provided at the groove wall of the step ring groove, and the shape of the secondary protective filter cotton is similar to the shape of the notch, and the secondary protective filter cotton fills the notch;

[0010] An air vent corresponding to the notch is also provided on the end surface of the step ring groove;

[0011] The first-level protective end cover is covered on the waterproof and breathable end of the valve body. The first-level protective end cover has an annular retaining wall, which is arranged around the step ring groove. A gap is formed between the annular retaining wall and the waterproof and breathable end of the valve body.

[0012] In one embodiment, the waterproof breathable valve with anti-mud and sand function based on three-layer protection also includes a sealing ring, which is located at a transition position between the threaded connection end and the waterproof breathable end of the valve body.

[0013] In one embodiment, the waterproof breathable valve with anti-mud and sand function based on three-layer protection also includes a pressure ring, which is accommodated in the step ring groove and presses the three-level protective breathable membrane paper.

[0014] In one embodiment, the third-level protective breathable film paper is laser welded inside the step ring groove.

[0015] In one embodiment, the outer ring of the pressure ring is threadedly connected to the inner wall of the step ring groove.

[0016] In one embodiment, a hexagonal flange is formed on the valve body, and the hexagonal flange is located at a transition position between the threaded connection end and the waterproof and breathable end of the valve body.

[0017] In one embodiment, the retaining wall of the first-level protective end cover is screwed onto the step ring groove.

[0018] In one embodiment, the retaining wall of the first-level protective end cover is engaged with the step ring groove.

[0019] In one embodiment, a plurality of notches are provided on the groove wall of the step ring groove, and the plurality of notches are distributed in a circular array with the central axis of the step ring groove as the center.

[0020] In one embodiment, there are multiple secondary protective filter cottons, and the multiple secondary protective filter cottons correspond one-to-one to the multiple gaps; and the multiple secondary protective filter cottons are interconnected to form a whole.

[0021] The utility model is a waterproof and breathable valve with a mud and sand prevention function based on three-layer protection. Three protective barriers are set up, making it difficult for external mud and sand to pass through the three protective barriers and reach the inside of the valve body, thereby improving the level of prevention of mud and sand from invading the inside of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1This is an assembly diagram of a waterproof breathable valve with mud, sand and stone protection based on three-layer protection according to an embodiment of the present invention;

[0024] Figure 2 for Figure 1 The exploded view of the waterproof breathable valve with mud, sand and stone protection based on three-layer protection is shown;

[0025] Figure 3 for Figure 1 A three-dimensional cross-sectional view of a waterproof breathable valve with mud, sand and stone protection based on three layers of protection;

[0026] Figure 4 for Figure 1 A planar cross-sectional view of a waterproof breathable valve with a three-layer protection structure and anti-mud, sand and stone function;

[0027] Figure 5 This is a structural diagram of multiple secondary protective filter cottons connected to form a whole in one embodiment of the present invention. DETAILED DESCRIPTION

[0028] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] like Figure 1 and Figure 2As shown, the utility model discloses a waterproof breathable valve 10 with anti-mud and sand function based on three-layer protection, which includes: a valve body 100, a first-level protection end cover 200, a second-level protection filter cotton 300, and a third-level protection breathable membrane paper 400.

[0032] like Figure 2 As shown, the valve body 100 is a hollow cavity structure with two ends open. The valve body 100 has a threaded connection end 110 and a waterproof and breathable end 120.

[0033] like Figure 2 、 Figure 3 and Figure 4 As shown, the waterproof and breathable end 120 forms a step ring groove 130 that penetrates the hollow cavity of the valve body 100 , and the third-level protective breathable film paper 400 is attached to the inside of the step ring groove 130 .

[0034] like Figure 2 、 Figure 3 and Figure 4 As shown, a notch 131 is opened at the groove wall of the step ring groove 130 , and the shape of the secondary protective filter cotton 300 is similar to that of the notch 131 , and the secondary protective filter cotton 300 fills the notch 131 .

[0035] Figure 2 As shown, a ventilation channel 132 corresponding to the notch 131 is further provided at the end surface of the step ring groove 130 .

[0036] like Figure 2 、 Figure 3 and Figure 4 As shown, the first-level protective end cover 200 covers the waterproof and breathable end 120 of the valve body 100. The first-level protective end cover 200 has an annular retaining wall 210, which is arranged around the step ring groove 130. A gap is formed between the annular retaining wall 210 and the waterproof and breathable end 120 of the valve body 100.

[0037] Next, the working principle of the waterproof breathable valve 10 with mud and sand prevention function based on the three-layer protection structure is described (please refer to Figure 4 ):

[0038] The external gas passes through the gap between the annular retaining wall 210 and the waterproof and breathable end 120 of the valve body 100, then passes through the secondary protective filter cotton 300 at the notch 131, then passes through the breathable channel 132 corresponding to the notch 131, then passes through the tertiary protective breathable film paper 400, and finally passes through the hollow cavity of the valve body 100, thereby reaching the interior of the valve body (such as the battery pack), realizing the exchange of internal and external gases.

[0039] Similarly, the internal gas passes through the hollow cavity of the valve body 100, then through the third-level protective breathable membrane paper 400, then through the breathable channel 132 corresponding to the notch 131, then through the second-level protective filter cotton 300 at the notch 131, and then through the gap between the annular retaining wall 210 and the waterproof breathable end 120 of the valve body 100, thereby reaching the outside and realizing the exchange of internal and external gases.

[0040] In the present invention, three protective barriers are provided, making it difficult for external mud and sand to pass through the three protective barriers and reach the interior of the valve body, thereby improving the level of preventing mud and sand from invading the interior of the valve body.

[0041] First, the first-level protective end cap 200 covers the waterproof and breathable end 120 of the valve body 100. The first-level protective end cap 200 has an annular retaining wall 210. The annular retaining wall 210 is arranged around the step ring groove 130. A gap is formed between the annular retaining wall 210 and the waterproof and breathable end 120 of the valve body 100. The first-level protective end cap 200 plays the role of the first layer of protection against external mud and sand.

[0042] Next, a secondary protective filter 300 is provided at the notch 131 to further block external mud and sand. Furthermore, the present invention is provided with a ventilation channel 132 corresponding to the notch 131. The ventilation channel 132 is provided at the corner of the notch 131. This corner setting makes it more difficult for external mud and sand to enter the valve body.

[0043] Finally, the three-level protective breathable film paper 400 forms the last protective barrier against the mud and sand outside;

[0044] It can be seen from this that the utility model sets up three protective barriers, making it difficult for external mud and sand to pass through the three protective barriers and reach the inside of the valve body, thereby improving the level of preventing mud and sand from invading the inside of the valve body, and the protective effect is very good.

[0045] In the present invention, the waterproof breathable valve 10 with mud and sand prevention function based on three-layer protection also includes a sealing ring 500 (such as Figure 2 As shown in FIG, the sealing ring 500 is located at a transition position between the threaded connection end 110 and the waterproof and breathable end 120 of the valve body 100. By providing the sealing ring 500, the airtightness of the connection between the valve body 100 and the battery pack can be improved.

[0046] Furthermore, the waterproof breathable valve 10 with mud and sand prevention function based on three-layer protection also includes a pressure ring 600 (such as Figure 2As shown, the pressure ring 600 is received within the stepped ring groove 130 and presses the third-level protective breathable film 400. The pressure ring 600 ensures that the third-level protective breathable film 400 is more stably adhered to the interior of the stepped ring groove 130. In this embodiment, the third-level protective breathable film 400 is laser welded to the interior of the stepped ring groove 130; the outer ring of the pressure ring 600 is threadedly connected to the inner wall of the stepped ring groove 130.

[0047] In the present invention, a hexagonal flange 101 is formed on the valve body 100 (such as Figure 1 As shown in FIG, the hexagonal flange 101 is located at the transition position between the threaded connection end 110 and the waterproof and breathable end 120 of the valve body 100. By providing the hexagonal flange 101, the entire valve body 100 can be screwed with a tool to install the valve body 100 on the battery pack.

[0048] Regarding the assembly method of the primary protective end cover 200 and the step ring groove 130, there are two embodiments as follows:

[0049] In the first embodiment, the retaining wall 210 of the first-level protective end cover 200 is screwed onto the step ring groove 130;

[0050] In the second embodiment, the retaining wall 210 of the primary protective end cover 200 is engaged with the step ring groove 130 .

[0051] Regarding the step ring groove 130 , a plurality of notches 131 may be provided on the groove wall of the step ring groove 130 . The plurality of notches 131 are distributed in a circular array with the central axis of the step ring groove 130 as the center.

[0052] In order to match the multiple notches 131 , in the present invention, there are multiple secondary protective filter cottons 300 , and the multiple secondary protective filter cottons 300 correspond one-to-one to the multiple notches 131 ; the multiple secondary protective filter cottons 300 are interconnected into a whole.

[0053] like Figure 5 As shown, it should be particularly noted that, in the present invention, multiple secondary protective filter cottons 300 are interconnected into a whole, that is, they can be punched out as a whole through a beer machine. In this way, not only multiple secondary protective filter cottons 300 are interconnected into a whole, but also easy to assemble, and each secondary protective filter cotton 300 is not easy to disperse and fall off.

[0054] The utility model is a waterproof breathable valve 10 with a mud and sand prevention function based on three-layer protection. Three protective barriers are set up, making it difficult for external mud and sand to pass through the three protective barriers and reach the inside of the valve body, thereby improving the level of preventing mud and sand from invading the inside of the valve body.

[0055] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A waterproof breathable valve with mud and sand protection function based on three-layer protection, characterized in that: include: Valve body, first-level protective end cover, second-level protective filter cotton, third-level protective breathable membrane paper; The valve body is a hollow cavity structure with two ends open, and the valve body has a threaded connection end and a waterproof and breathable end; The waterproof and breathable end forms a step ring groove that penetrates the hollow cavity of the valve body, and the three-level protective breathable film paper is attached to the inside of the step ring groove; A notch is provided at the groove wall of the step ring groove, and the shape of the secondary protective filter cotton is similar to the shape of the notch, and the secondary protective filter cotton fills the notch; An air vent corresponding to the notch is also provided on the end surface of the step ring groove; The first-level protective end cover is covered on the waterproof and breathable end of the valve body. The first-level protective end cover has an annular retaining wall, which is arranged around the step ring groove. A gap is formed between the annular retaining wall and the waterproof and breathable end of the valve body.

2. The waterproof breathable valve with mud and sand proof function based on three-layer protection according to claim 1 is characterized in that: The waterproof and breathable valve with mud, sand and stone prevention function based on three-layer protection also includes a sealing ring, which is located at a transition position between the threaded connection end and the waterproof and breathable end of the valve body.

3. The waterproof breathable valve with mud and sand proof function based on three-layer protection according to claim 1 is characterized in that: The waterproof breathable valve with mud and sand prevention function based on three-layer protection also includes a pressure ring, which is accommodated in the step ring groove and presses the three-level protective breathable membrane paper.

4. The waterproof breathable valve with mud and sand protection function based on three-layer protection according to claim 3 is characterized in that: The third-level protective breathable film paper is laser welded inside the step ring groove.

5. The waterproof breathable valve with mud and sand proof function based on three-layer protection according to claim 4 is characterized in that: The outer ring of the pressure ring is threadedly connected to the inner wall of the step ring groove.

6. The waterproof breathable valve with mud and sand proof function based on three-layer protection according to claim 1 is characterized in that: A hexagonal flange is formed on the valve body and is located at a transition position between the threaded connection end and the waterproof and breathable end of the valve body.

7. The waterproof breathable valve with mud, sand and stone prevention function based on three-layer protection according to claim 1 is characterized in that: The retaining wall of the first-level protective end cover is screwed onto the step ring groove.

8. The waterproof breathable valve with mud, sand and stone prevention function based on three-layer protection according to claim 1 is characterized in that: The retaining wall of the first-level protective end cover is engaged with the step ring groove.

9. The waterproof breathable valve with mud, sand and stone prevention function based on three-layer protection according to claim 1 is characterized in that: A plurality of notches are provided on the groove wall of the step ring groove, and the plurality of notches are distributed in a ring array with the central axis of the step ring groove as the center.

10. The waterproof breathable valve with mud, sand and stone prevention function based on three-layer protection according to claim 9 is characterized in that: There are multiple secondary protective filter cottons, and the multiple secondary protective filter cottons correspond one-to-one to the multiple gaps; the multiple secondary protective filter cottons are interconnected to form a whole.

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