CN209909243U - One-way exhaust valve - Google Patents
One-way exhaust valve Download PDFInfo
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- CN209909243U CN209909243U CN201920577580.9U CN201920577580U CN209909243U CN 209909243 U CN209909243 U CN 209909243U CN 201920577580 U CN201920577580 U CN 201920577580U CN 209909243 U CN209909243 U CN 209909243U
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Abstract
The utility model relates to a one-way exhaust valve, which comprises a valve seat, a valve sheet and a valve cover, wherein the valve seat comprises a valve seat wall, the valve seat wall is provided with an air inlet hole, the valve cover comprises a valve cover top wall, and the edge of the valve cover top wall extends downwards to form a sealing side wall; the sealing side wall is connected with the valve seat wall, the sealing side wall and the valve cover top wall surround to form a movable cavity, the valve block is located in the movable cavity, gaps are arranged between the valve block and the valve cover top wall and between the valve block and the sealing side wall, the valve block is attached to the valve seat wall and covers the air inlet hole, the valve cover top wall is provided with at least two edge exhaust holes, and the edge exhaust holes are communicated with the edge of the valve cover top wall when the valve. The utility model can ensure the smooth exhaust passage, ensure the uniform and smooth exhaust and make the application range of the one-way exhaust valve wider; the assembly of the one-way exhaust valve can be completed without using tools, and the assembly is more convenient.
Description
Technical Field
The utility model relates to a one-way discharge valve.
Background
At present, in a traditional one-way exhaust valve, only one central exhaust hole 311 is formed in the center of a top wall 31 of a valve cover, the central exhaust hole 311 is usually small in aperture, or 1-2 exhaust holes are formed in the edge of the top wall, so that the traditional one-way exhaust valve is only suitable for middle exhaust or edge exhaust, the exhaust amount is small, and the application range is small.
In addition, during assembly, the valve plate 2 is placed on the valve seat wall 11, and then the valve cover 3 and the valve seat 1 are fastened (the connecting buckle 329 is clamped into the connecting clamping groove 119). When the valve block 2 is placed on the valve seat wall 11, the valve block 2 may deviate from the valve seat wall 11, at this time, if the valve cover 3 is fastened with the valve seat 1, the sealing side wall 32 and the valve seat wall 11 clamp the valve block 2, the valve block 2 may be damaged or the one-way exhaust valve is poor in air tightness, and the valve block 2 needs to be checked or reworked, which is inconvenient, and the product quality is affected if the valve block 2 is not found.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide a one-way exhaust valve, which can ensure smooth exhaust passage, make exhaust be completed evenly and smoothly, and make the application range of the one-way exhaust valve wider.
The utility model discloses the detailed technical scheme who takes does: the one-way exhaust valve comprises a valve seat, a valve plate and a valve cover, wherein the valve seat comprises a valve seat wall, an air inlet hole is formed in the valve seat wall, the valve cover comprises a valve cover top wall, and the edge of the valve cover top wall extends downwards to form a sealing side wall; the sealing side wall is connected with the valve seat wall, the sealing side wall and the valve cover top wall surround to form a movable cavity, the valve block is located in the movable cavity, gaps are arranged between the valve block and the valve cover top wall and between the valve block and the sealing side wall, the valve block is attached to the valve seat wall and covers the air inlet hole, the valve cover top wall is provided with at least two edge exhaust holes, and the edge exhaust holes are communicated with the edge of the valve cover top wall when the valve.
Furthermore, the side wall of the sealing side wall is provided with a side exhaust groove; the side exhaust grooves are respectively communicated with the edge exhaust holes.
So as to further ensure the smooth exhaust passage and ensure the smooth completion of the exhaust.
Preferably, there are two edge vent holes, and the two edge vent holes are rotationally symmetric around the center of the top wall of the valve cover.
The smooth exhaust passage can be further ensured, and the exhaust can be smoothly finished.
Furthermore, the bottom end of the valve seat wall is upwards sunken to form an anti-blocking groove communicated with the air inlet hole.
The bottom end of the valve seat wall can be prevented from contacting the object, which can cause the air inlet hole to be blocked.
Preferably, the sealing side wall is made of plastic materials, the valve seat wall is provided with a connecting clamping groove, the sealing side wall is provided with a connecting buckle, and the connecting buckle is clamped into the connecting clamping groove.
The assembly of the one-way exhaust valve can be completed without using tools, and the assembly is more convenient.
Further, a central exhaust hole is formed in the top wall of the valve cover.
The exhaust capacity of the one-way exhaust valve can be further improved.
Further, a valve seat mounting wall is provided outwardly of the valve seat wall.
So that the exhaust valve is mounted on the sealed body W through the hot pressing process.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) can ensure the smooth exhaust passage and ensure the uniform and smooth exhaust,
2) the application range of the one-way exhaust valve can be wider;
3) the assembly of the one-way exhaust valve can be completed without using tools, and the assembly is more convenient.
Drawings
Fig. 1 is a schematic perspective view of a one-way exhaust valve of the present invention.
Fig. 2 is a three-dimensional exploded view of the one-way exhaust valve of the present invention.
Fig. 3 is a perspective view of the valve seat 1.
Fig. 4 is a schematic perspective view of the valve cover 3.
Fig. 5 is a schematic top view of the one-way exhaust valve of the present invention.
Fig. 6 is a schematic perspective view in half section of section i-i of fig. 5.
Fig. 7 is a schematic view of the section i-i of fig. 5. In fig. 7, the thick dotted arrows indicate the tendency of the gas to flow if the air pressure inside the sealed body W is lower than the atmospheric pressure outside the sealed body W; the thick dashed line indicates the sealing layer 23.
Fig. 8 is a schematic view of the section i-i of fig. 5. In fig. 8, the thick dotted line indicates the sealing layer 23, and the dotted line arrow indicates the flow tendency of the gas when the gas is generated in the sealed body W and the gas pressure is higher than the atmospheric pressure outside the sealed body W; the thick straight line arrow indicates the moving direction of the valve sheet 2 when gas is discharged from the sealed body W, and the thick curved line arrow indicates the direction in which one end of the valve sheet 2 is sandwiched and inclined by the first stopper projection 221 when gas is discharged from the sealed body W.
A valve seat 1; a valve seat wall 11; an intake hole 111; an anti-clogging slot 112; a connection card slot 119; a positioning boss 12; a ventilation groove 121; a valve seat mounting wall 19; a valve plate 2; a moving chamber 21; the movement limiting protrusion 22; a first limit projection 221; a second limit projection 222; a sealing layer 23; a valve cover 3; a bonnet top wall 31; a central exhaust hole 311; edge vent holes 312; a sealing side wall 32; side exhaust grooves 321; a connection buckle 329; a glue injection port 9; the ventilation interval A; the thickness of the valve plate B; the sealed body W.
Detailed Description
The technical solution of the present invention will be described below with reference to the accompanying drawings of the present invention.
The utility model discloses a one-way exhaust valve, it includes disk seat 1, valve block 2 and valve gap 3.
The valve seat 1 includes a valve seat wall 11, and the valve seat wall 11 is provided with an intake hole 111.
The valve cover 3 comprises a valve cover top wall 31, and the edge of the valve cover top wall 31 extends downwards to form a sealing side wall 32; the sealing side wall 32 is connected to the valve seat wall 11.
Preferably, the sealing sidewall 32 is made of plastic, the valve seat wall 11 is provided with a connecting slot 119, the sealing sidewall 32 is provided with a connecting buckle 329, and the connecting buckle 329 is clamped into the connecting slot 119. When assembling the one-way exhaust valve, place valve block 2 on disk seat 1, then move valve gap 3 to disk seat 1, make connecting buckle 329 take place elastic deformation, block into connecting slot 119, can accomplish the equipment of one-way exhaust valve, need not use tools, it is more convenient.
The valve seat wall 11, the sealing side wall 32 and the valve cover top wall 31 surround to form a moving cavity 21, the valve sheet 2 is located in the moving cavity 21, gaps are arranged between the valve sheet 2 and the valve cover top wall 31 and between the valve sheet 2 and the sealing side wall 32, and the valve sheet 2 is attached to the valve seat wall 11 and covers the air inlet hole 111 (namely, the projection of the air inlet hole 111 on the valve sheet 2 is completely located in the valve sheet 2).
The cap top wall 31 is provided with at least two rim vent holes 312, and the rim vent holes 312 communicate with the rim of the cap top wall 31 in a plan view.
The utility model discloses an one-way discharge valve's theory of operation does: before use, the valve seat 1 is attached to the body to be sealed W, which is generally a sealed bag or container.
When gas is generated in the sealed body W and the air pressure is larger than the atmospheric pressure outside the sealed body, the valve plate 2 moves upwards in the moving cavity 21, and a gap is formed between the valve plate 2 and the valve seat wall 11. At this time, the gas can be discharged from the edge discharge hole 312 through the gas inlet holes 111, the gaps between the valve sheet 2 and the valve seat wall 11, and the gaps between the valve sheet 2 and the sealing side wall 32, the gas discharge passage is smooth, and the gas is discharged from the inside to the outside. When the valve plate 2 is attached to the valve seat wall 11 and covers the air inlet hole 111. At this time, the gas cannot enter the sealed body W, and the intake passage is blocked, thereby ensuring that the sealed body W is sealed. Namely, the utility model discloses an one-way exhaust valve can realize one-way exhaust function.
The gas in the sealed body W is discharged from the sealed body W, and even if the valve plate 2 moves horizontally (as shown in fig. 7) in the upward movement process of the valve plate 2 in the moving cavity 21, because the valve cover top wall 31 is provided with at least two edge vent holes 312, and the edge vent holes 312 are communicated with the edge of the valve cover top wall 31 when viewed from top, one of the edge vent holes 312 cannot be completely covered by the valve plate 2, thereby ensuring smooth exhaust passage and enabling the exhaust to be completed uniformly and smoothly.
It can be seen from the above that the one-way exhaust valve of the utility model can ensure the smooth exhaust passage and ensure the uniform and smooth exhaust. Meanwhile, the number of the edge exhaust holes 312 is two or more, so that the exhaust capacity of the one-way exhaust valve can be improved, and the application range of the one-way exhaust valve can be wider.
Further, the sealing sidewall 32 is provided with a side exhaust groove 321; the side exhaust grooves 321 communicate with the edge exhaust holes 312, respectively. So as to further ensure the smooth exhaust passage and ensure the smooth completion of the exhaust.
Preferably, there are two edge vent holes 312, and the two edge vent holes 312 are rotationally symmetric about the center of the bonnet top wall 31. When the valve plate 2 moves horizontally to increase the area covered by the valve plate 2 in one edge exhaust hole 312, the area covered by the valve plate 2 in the other edge exhaust hole 312 is synchronously reduced, so that the smooth exhaust passage can be further ensured, and the smooth exhaust can be realized.
Further, the bottom end of the valve seat wall 11 is recessed upward to form an anti-blocking groove 112 communicating with the air intake hole 111. The bottom end of the valve seat wall 11 can be prevented from coming into contact with the article, causing the air intake holes 111 to be clogged.
Typically, a central vent hole 311 is provided in the bonnet top wall 31. [ i.e., there is no overlap of the center vent hole 311 with the edge of the bonnet top wall 31 in plan view ]. Generally, the center vent hole 311 is provided in the center of the bonnet top wall 31. The exhaust capacity of the one-way exhaust valve can be further improved
Typically, the seat wall 11 is provided with a seat mounting wall 19 extending outwardly. So that the valve seat 1 is mounted on the sealed body W by the hot press process. The valve seat mounting wall 19 is generally L-shaped in cross-section.
The valve seat wall 11 is provided with at least two positioning protrusions 12, the positioning protrusions 12 are respectively attached to the valve plate 2, and a ventilation groove 121 is formed between the positioning protrusions 12. When it is necessary to exhaust gas from the sealed body W, the gas can pass through the ventilation groove 121, so that the exhaust passage is smooth and the exhaust can be smoothly completed.
When the one-way exhaust valve is assembled, the valve plate 2 can be directly placed into a space formed by surrounding of the positioning protrusions 12 for pre-positioning, the one-way exhaust valve is convenient to assemble, and the valve plate 2 can be prevented from swinging on the valve seat wall 11 to cause the valve plate 2 to exceed the valve seat wall 11 and be clamped by the sealing side wall 32 to generate defects. Meanwhile, the valve plate 2 can limit the swing position of the valve plate 2 on the valve seat wall 11, and the smooth exhaust passage is ensured.
Preferably, the positioning protrusions 12 are two or more and are uniformly distributed around the axis of the valve plate 2. The valve plate 2 can be completely limited in the space surrounded by the positioning bulge 12, and the smooth exhaust passage is ensured.
Further, the valve cover 3 is provided with a movable limiting bulge 22 extending downwards, the distance between the bottom end of the movable limiting bulge 22 and the top end of the positioning bulge 12 is a ventilation distance A, the thickness of the positioning bulge 12 is a valve plate thickness B, and the ventilation distance A is smaller than the valve plate thickness B. When the gas in the sealed body W is discharged and the valve plate 2 moves upwards in the moving cavity 21, the moving limiting bulge 22 abuts against the valve plate 2, and the valve plate 2 can be prevented from moving out of the space formed by the surrounding of the positioning bulge 12 and causing the risk that the one-way exhaust valve cannot be closed.
Preferably, the valve plate 2 is made of an elastic material (such as rubber, etc.), and the movement limiting protrusion 22 includes a first limiting protrusion 221 and a second limiting protrusion 222; the first limiting protrusion 221 and the second limiting protrusion 222 are respectively located on two sides of the valve seat wall 11 (two sides divided by the diameter of the valve sheet 2), the ventilation distance a of the first limiting protrusion 221 is zero, and the ventilation distance a of the second limiting protrusion 222 is larger than zero and smaller than the thickness B of the valve sheet. When the sealed body W is exhausted and the valve plate 2 moves upward in the moving cavity 21, the first limiting protrusion 221 and the second limiting protrusion 222 respectively abut against two ends of the valve plate 2, so that the valve plate 2 is inclined, after the exhaust is completed, the contact area between the side surface of the valve plate 2 and the positioning protrusion 12 is small, the valve plate is easy to reset, and the sealed body W can be sealed.
Further, the valve sheet 2 is wrapped with a sealing layer 23. The sealing layer 23 is typically a sealing grease. The sealing performance between the valve plate 2 and the valve seat wall 11 can be improved, and the sealed body W is ensured to be sealed.
It is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the scope of the present invention.
The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.
Claims (7)
1. The one-way exhaust valve comprises a valve seat (1), a valve plate (2) and a valve cover (3), wherein the valve seat (1) comprises a valve seat wall (11), the valve seat wall (11) is provided with an air inlet hole (111), the valve cover (3) comprises a valve cover top wall (31), and the edge of the valve cover top wall (31) extends downwards to form a sealing side wall (32); sealed lateral wall (32) are connected with valve seat wall (11), and valve seat wall (11), sealed lateral wall (32) and valve gap roof (31) surround and form and remove chamber (21), and valve block (2) are located and remove chamber (21), between valve block (2) and valve gap roof (31), and all be provided with the clearance between sealed lateral wall (32), and valve block (2) and valve seat wall (11) laminating and cover inlet port (111), its characterized in that: the valve cover top wall (31) is provided with at least two edge vent holes (312), and the edge vent holes (312) are communicated with the edge of the valve cover top wall (31) in a overlooking mode.
2. A one-way exhaust valve according to claim 1, wherein: the sealing side wall (32) is provided with a side exhaust groove (321); the side exhaust grooves (321) are respectively communicated with the edge exhaust holes (312).
3. A one-way exhaust valve according to claim 2, wherein: the number of the edge vent holes (312) is two, and the two edge vent holes (312) are rotationally symmetrical around the center of the valve cover top wall (31).
4. A one-way exhaust valve according to claim 1, wherein: the bottom end of the valve seat wall (11) is upwards sunken to form an anti-blocking groove (112) communicated with the air inlet hole (111).
5. A one-way exhaust valve according to claim 1, wherein: the sealing side wall (32) is made of plastics, the valve seat wall (11) is provided with a connecting clamping groove (119), the sealing side wall (32) is provided with a connecting buckle (329), and the connecting buckle (329) is clamped into the connecting clamping groove (119).
6. The one-way exhaust valve according to any one of claims 1 to 5, wherein: a central exhaust hole (311) is arranged in the valve cover top wall (31).
7. The one-way exhaust valve according to claim 6, wherein: the valve seat wall (11) is provided with a valve seat mounting wall (19) extending outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920577580.9U CN209909243U (en) | 2019-04-25 | 2019-04-25 | One-way exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920577580.9U CN209909243U (en) | 2019-04-25 | 2019-04-25 | One-way exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209909243U true CN209909243U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920577580.9U Active CN209909243U (en) | 2019-04-25 | 2019-04-25 | One-way exhaust valve |
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| Country | Link |
|---|---|
| CN (1) | CN209909243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353435A (en) * | 2021-06-25 | 2021-09-07 | 深圳市冠泰橡胶制品有限公司 | Sealing bag capable of one-way exhausting |
-
2019
- 2019-04-25 CN CN201920577580.9U patent/CN209909243U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353435A (en) * | 2021-06-25 | 2021-09-07 | 深圳市冠泰橡胶制品有限公司 | Sealing bag capable of one-way exhausting |
| CN113353435B (en) * | 2021-06-25 | 2024-05-24 | 深圳市冠泰橡胶制品有限公司 | Sealing bag capable of exhausting air unidirectionally |
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