Ventilation valve of sealing tank

Abstract

The ventilation valve comprises a ventilation valve shell and a sealing tank body, the top of the sealing tank body is connected with a sealing tank cover body in a clamped mode, a mounting round hole is formed in the middle of the sealing tank cover body, the ventilation valve shell is arranged in the mounting round hole in a clamped mode, and a guide hole is formed in the middle of the bottom end of the ventilation valve shell. According to the ventilation valve of the sealing tank, the auxiliary ball obtains upward thrust under the elastic action of the telescopic spring to push the sealing plate to move upwards, so that the sealing plate is in close contact with the top of the guide hole, the first telescopic hole is sealed, external air is prevented from entering the sealing tank body, and the sealing effect of the sealing tank is improved. The movable rod is pressed downwards to push the sealing plate to move downwards, the first telescopic hole is not sealed any more, external air sequentially passes through the air hole, the second telescopic hole, the first telescopic hole, the guide hole and the air guide hole to enter the sealing tank body, the internal air pressure and the external air pressure of the sealing tank body are the same, and the sealing tank cover body can be opened conveniently.

Description

Technical Field

[0001] This utility model relates to the field of sealed containers, specifically a vent valve for a sealed container. Background Technology

[0002] Sealing containers made of heat-resistant glass have many advantages, such as being completely bubble-free, free of cold lines, highly transparent, and resistant to rapid temperature changes. They have even more advantages than the glass used in Lock & Lock cups. Most importantly, they are much cheaper. Due to their high quality and low price, they are widely used.

[0003] However, existing sealing valves make it difficult to open the sealing tank lid due to the pressure difference between the inside and outside of the sealing tank. Therefore, a vent valve for the sealing tank is proposed to facilitate opening the sealing tank lid. Utility Model Content

[0004] The purpose of this utility model is to provide a vent valve for a sealed container to solve the problem mentioned in the background art, which is that it is inconvenient to open the lid of the sealed container due to the pressure difference between the inside and outside of the sealed container.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vent valve for a sealed container, comprising a vent valve housing and a sealed container body. A sealed container cover is engaged with the top of the sealed container body. A mounting hole is provided in the middle of the sealed container cover. A vent valve housing is engaged inside the mounting hole. A guide hole is provided in the middle of the bottom end of the vent valve housing. A threaded sleeve is fixedly provided on the outer side of the bottom end of the vent valve housing. A lower valve seat is threaded on the surface of the threaded sleeve. A vent hole is provided in the middle of the bottom end of the lower valve seat. A telescopic spring is provided at the bottom of the inner side of the lower valve seat. An auxiliary ball is provided inside the guide hole at the top end of the telescopic spring. An upper valve seat is fixedly provided at the top end of the vent valve housing. A second telescopic hole is provided at the top end of the upper valve seat. A moving rod is inserted into the second telescopic hole. A closing plate is fixedly connected to the bottom end of the moving rod inside the guide hole.

[0006] The auxiliary ball, under the elastic force of the telescopic spring, gains an upward thrust, which pushes the sealing plate upward, making it tightly contact the top of the guide hole to seal the first telescopic hole and prevent outside air from entering the sealed container. By pressing down the moving rod, the sealing plate is pushed downward, no longer sealing the first telescopic hole, allowing outside air to enter the sealed container in sequence through the vent hole, the second telescopic hole, the first telescopic hole, the guide hole, and the air guide hole. This makes the air pressure inside and outside the sealed container the same, making it easier to open the sealed container lid.

[0007] Preferably, a vent hole is provided on one side of the upper valve seat, and the vent hole is connected to the second telescopic hole to facilitate ventilation.

[0008] Preferably, the sealing plate and the moving rod are an integral structure, and a sealing gasket is fixedly provided on the outer side of the top of the sealing plate. The sealing plate and the auxiliary ball are correspondingly arranged. The sealing gasket can improve the sealing effect of the sealing plate.

[0009] Preferably, a first telescopic hole is provided at the top of the inner side of the guide hole. The first telescopic hole is connected to a second telescopic hole. The first telescopic hole is inserted and connected to the moving rod. The connection between the first telescopic hole and the second telescopic hole facilitates the ventilation of the sealed tank.

[0010] Preferably, the surface of the lower valve seat is fixedly provided with a number of evenly distributed anti-slip patterns, which facilitates the rotation of the lower valve seat.

[0011] Preferably, an O-ring is fixedly provided at the connection between the mounting hole and the vent valve housing, and the O-ring can improve the sealing performance of the sealed tank.

[0012] Preferably, a plurality of sealing slots are provided at the connection between the sealed container body and the sealed container cover, and a plurality of sealing blocks are provided at the connection between the sealed container cover and the sealed container. The plurality of sealing blocks are respectively engaged with the plurality of sealing slots. The sealing container cover is fixed on the sealed container body by the limiting engagement of the plurality of sealing blocks with the plurality of sealing slots.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The auxiliary ball, under the elastic force of the telescopic spring, gains an upward thrust, which pushes the sealing plate upward, making it tightly contact the top of the guide hole to seal the first telescopic hole and prevent outside air from entering the sealed container. By pressing down the moving rod, the sealing plate is pushed downward, no longer sealing the first telescopic hole, allowing outside air to enter the sealed container in sequence through the vent hole, the second telescopic hole, the first telescopic hole, the guide hole, and the air guide hole. This makes the air pressure inside and outside the sealed container the same, making it easier to open the sealed container lid. Attached Figure Description

[0015] Figure 1 This is a perspective view of the sealed container of this utility model;

[0016] Figure 2 This is a perspective view of the vent valve of this utility model;

[0017] Figure 3 This is a cross-sectional view of the vent valve of this utility model;

[0018] Figure 4 This is an enlarged view of part A of this utility model.

[0019] In the diagram: 1. Sealing tank cover; 2. Mounting hole; 3. O-ring; 4. Vent valve housing; 5. Upper valve seat; 6. Moving rod; 7. Threaded sleeve; 8. Lower valve seat; 9. Air guide hole; 10. Telescopic spring; 11. Auxiliary ball; 12. Guide hole; 13. Sealing plate; 14. First telescopic hole; 15. Sealing gasket; 16. Second telescopic hole; 17. Vent hole; 18. Anti-slip texture; 19. Sealing tank body; 20. Sealing block; 21. Sealing groove. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1-4 This utility model provides a vent valve for a sealed container, including a vent valve housing 4 and a sealed container body 19. A sealed container cover 1 is snapped onto the top of the sealed container body 19. A mounting hole 2 is provided in the middle of the sealed container cover 1. The vent valve housing 4 is snapped onto the inside of the mounting hole 2. A guide hole 12 is provided in the middle of the bottom end of the vent valve housing 4. A threaded sleeve 7 is fixedly provided on the outer side of the bottom end of the vent valve housing 4. A lower valve seat 8 is threaded onto the surface of the threaded sleeve 7. A vent hole 9 is provided in the middle of the bottom end of the lower valve seat 8. A telescopic spring 10 is provided at the bottom of the inner side of the lower valve seat 8. An auxiliary ball 11 is provided inside the guide hole 12 at the top end of the telescopic spring 10. An upper valve seat 5 is fixedly provided at the top end of the vent valve housing 4. A second telescopic hole 16 is provided at the top end of the upper valve seat 5. An internally connected movable rod 6 extends to the guide hole 12 and is fixedly connected to a sealing plate 13. An auxiliary ball 11, under the elastic force of the telescopic spring 10, generates an upward thrust, which pushes the sealing plate 13 upward, making it tightly contact the top of the guide hole 12 to seal the first telescopic hole 14 and prevent outside air from entering the sealed container 19. By pressing the movable rod 6 downward, the sealing plate 13 is pushed downward, and the first telescopic hole 14 is no longer sealed. This allows outside air to enter the sealed container 19 sequentially through the vent hole 17, the second telescopic hole 16, the first telescopic hole 14, the guide hole 12, and the air guide hole 9, making the air pressure inside and outside the sealed container 19 the same, which facilitates opening the sealed container lid 1.

[0022] A vent hole 17 is provided on one side of the upper valve seat 5. The vent hole 17 is connected to the second telescopic hole 16. The sealing plate 13 and the moving rod 6 are an integral structure. A sealing gasket 15 is fixedly provided on the outer side of the top of the sealing plate 13. The sealing plate 13 is correspondingly provided with the auxiliary ball 11. A first telescopic hole 14 is provided on the top of the inner side of the guide hole 12. The first telescopic hole 14 is connected to the second telescopic hole 16. The first telescopic hole 14 is inserted and connected to the moving rod 6.

[0023] In use, the vent hole 17 facilitates ventilation, the sealing gasket 15 improves the sealing effect of the sealing plate 13, and the connection between the first telescopic hole 14 and the second telescopic hole 16 facilitates ventilation of the sealed tank 19.

[0024] The surface of the lower valve seat 8 is fixedly provided with several evenly distributed anti-slip textures 18. An O-ring 3 is fixedly provided at the connection between the mounting hole 2 and the vent valve shell 4. Several sealing grooves 21 are provided at the connection between the sealing tank body 19 and the sealing tank cover 1. Several sealing blocks 20 are provided at the connection between the sealing tank cover 1 and the sealing tank 19. The several sealing blocks 20 are respectively engaged with the several sealing grooves 21.

[0025] In use, the anti-slip texture 18 facilitates the rotation of the lower valve seat 8, and the O-ring 3 improves the sealing performance of the sealed tank 19. The sealing tank cover 1 is fixed to the sealed tank 19 by the limiting engagement of several sealing blocks 20 with several sealing slots 21.

[0026] In this embodiment, the operator first inserts the vent valve housing 4 into the mounting hole 2, then introduces an item into the sealed container 19, and then closes the sealed container lid 1. During the sealing process, the auxiliary ball 11, under the elastic force of the telescopic spring 10, obtains an upward thrust to push the sealing plate 13 upward, so that the sealing plate 13 is in close contact with the top of the guide hole 12, thereby sealing the first telescopic hole 14 and preventing outside air from entering the sealed container 19. When it is necessary to open the sealed container lid 1, the operator presses down the moving rod 6 to push the sealing plate 13 downward, no longer sealing the first telescopic hole 14. This allows outside air to enter the sealed container 19 through the vent hole 17, the second telescopic hole 16, the first telescopic hole 14, the guide hole 12, and the air guide hole 9 in sequence, making the air pressure inside and outside the sealed container 19 the same, which facilitates opening the sealed container lid 1.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A breather valve for a sealed tank comprising a breather valve housing (4) and a sealed tank body (19), characterised in that: The top of the sealing tank body (19) is connected with a sealing tank cover body (1), the middle part of the sealing tank cover body (1) is provided with a mounting circular hole (2), the inside of the mounting circular hole (2) is provided with a breathable valve shell (4), the middle part of the bottom end of the breathable valve shell (4) is provided with a guide hole (12), the outer side of the bottom end of the breathable valve shell (4) is fixedly provided with a threaded sleeve (7), the surface of the threaded sleeve (7) is threadedly provided with a lower valve seat (8), the middle part of the bottom end of the lower valve seat (8) is provided with a gas guide hole (9), the bottom of the inner side of the lower valve seat (8) is provided with a telescopic spring (10), the top end of the telescopic spring (10) extends to the inside of the guide hole (12) and is provided with an auxiliary ball (11), the top end of the breathable valve shell (4) is fixedly provided with an upper valve seat (5), the top end of the upper valve seat (5) is provided with a second telescopic hole (16), the inside of the second telescopic hole (16) is connected with a moving rod (6), the bottom end of the moving rod (6) extends to the inside of the guide hole (12) and is fixedly connected with a closing plate (13).

2. A venting valve for a sealed can according to claim 1, wherein: The upper valve seat (5) is provided with a breathable hole (17) on one side, and the breathable hole (17) is communicated with the second telescopic hole (16).

3. A venting valve for a sealed can according to claim 1, wherein: The closing plate (13) and the moving rod (6) are of an integral structure, the outer side of the top end of the closing plate (13) is fixedly provided with a sealing gasket (15), and the closing plate (13) is correspondingly provided with the auxiliary ball (11).

4. A venting valve for a sealed can according to claim 1, wherein: The top end of the inside of the guide hole (12) is provided with a first telescopic hole (14), the first telescopic hole (14) is communicated with the second telescopic hole (16), and the first telescopic hole (14) is connected with the moving rod (6).

5. A venting valve for a sealed can according to claim 1, wherein: The surface of the lower valve seat (8) is fixedly provided with a plurality of evenly distributed anti-skid lines (18).

6. A venting valve for a sealed can according to claim 1, wherein: The connecting part of the mounting circular hole (2) and the breathable valve shell (4) is fixedly provided with an O-shaped ring (3).

7. A venting valve for a sealed can according to claim 1, wherein: The connecting part of the sealing tank body (19) and the sealing tank cover body (1) is provided with a plurality of sealing clamping grooves (21), the connecting part of the sealing tank cover body (1) and the sealing tank body (19) is provided with a plurality of sealing clamping blocks (20), and a plurality of sealing clamping blocks (20) are connected with a plurality of sealing clamping grooves (21) respectively.

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