TWM498826U - Pressure safety valve of airtight pot lid - Google Patents

Description

Pressure tight valve for gas tight lid

The creation is a pressure safety valve applied to the airtight lid, which can automatically open to communicate with the atmosphere when the outward positive pressure or the inward negative pressure in the pot exceeds a safe value, and balance the pressure in the pot.

Conventional airtight pans operate using micro-pressure and thermal cycling principles to shorten cooking time. The outer periphery of the lid of the gas-tight pot is provided with a sealing ring made of rubber, so that when the lid is closed on the upper edge of the pot body, an airtight space can be formed inside the pot body to avoid heat loss in the pot and improve heating efficiency. .

When the user heats the pot to cook the ingredients, the moisture in the pot will gradually be converted into water vapor, forming a micro-pressure state, so after the pot stops heating, the micro-pressure state can lower the boiling point temperature and maintain the boiling of the pot, thereby providing It is similar to the smoldering effect of the smoldering pot to save energy.

However, as the pot body heats up and the excessive positive pressure is generated in the pot, the lid may be sprayed and the danger may occur. To overcome the above problems, an airtight lid that can automatically relieve pressure has appeared on the market, mainly A through hole is arranged in the lid, and a normally closed movable valve is arranged in the through hole. In this way, when the positive pressure is generated in the pot body, the movable valve will be automatically pushed by the positive pressure to open the through hole to release the pressure, so that the pot maintains a certain pressure, so as not to cause the lid to fly.

The above-mentioned movable valve can automatically relieve pressure when the outside body generates an excessive outward positive pressure. However, when the pot body stops heating, the air pressure in the pot body is reduced to generate an inward negative pressure, which makes the lid difficult to be opened. Unless the manual opening of the active valve is used, the increasing negative pressure may cause the lid to collapse. If the lid is made of tempered glass, when the pot is continuously cooled, the negative pressure in the pot exceeds the pressure of the lid pressure. It is more likely to be cracked or damaged due to defects in the material of the lid itself, resulting in safety. Doubt.

In view of this, the creator has accumulated many years of research and practical experience in related fields, and created a pressure safety valve with an airtight lid to improve the negative pressure of the pot over the pressure of the lid pressure, which may cause damage to the lid. .

The purpose of the present invention is to provide a pressure safety valve applied to an airtight lid for automatically releasing pressure when the positive pressure in the pot is too large, and to automatically open the atmosphere when the negative pressure exceeds a safe value in the pot. Avoid damage to the lid due to excessive pressure.

In order to achieve the above object, the outer periphery of the lid is provided with a sealing ring that can be tightly closed around the pot body, and a through hole is formed in the lid, wherein: the pressure safety valve is disposed in the through hole, the pressure The safety valve has a gas-tight cap protruding from the top surface of the lid and having an outer diameter larger than the through-hole, a hollow gas permeable portion disposed under the gas-tight cap and capable of moving up and down in the through-hole, and a hollow gas permeable portion a retaining ring around the bottom and having an outer diameter larger than the through hole. When the pressure safety valve generates an excessive outward positive pressure in the pot, the positive pressure can push the airtight cap and the hollow gas permeable portion to move upward to make the pot body and the outside atmosphere Connecting, releasing the airtight state between the lid and the pot body to release pressure; the airtight cap has an accommodating space having upper and lower openings communicating with the outside atmosphere and the hollow venting portion, At least one movable valve plug with a closed upper opening is provided in the normal state. When an excessive negative pressure is generated in the pot, the negative pressure attracts the movable valve plug to be displaced downward, so that the internal negative pressure of the pot body passes through the upper and lower openings of the accommodating space and the outside. Atmospheric connectivity, lifting the lid and pot Between the negative pressure.

According to the above configuration, when the pressure safety valve of the present invention generates an excessive outward positive pressure in the pot, it can be pushed upward by the positive pressure, so that the pot body communicates with the outside atmosphere through the hollow gas permeable portion, and the lid and the pot body are released. When the negative pressure is generated in the pot, the negative pressure first attracts the pressure relief valve to reset the sealed through hole. If the negative pressure continues to increase beyond the safe value, the active valve plug will be attracted downward by the negative pressure. The negative pressure in the pot is communicated with the outside atmosphere through the upper and lower openings of the accommodating space to balance the pressure in the pot body.

Embodiments of the various components are further described below: when implemented, a magnetic assembly is provided between the top surface of the movable valve plug and the bottom surface of the corresponding upper opening to attract each other to normally close the movable valve plug.

In implementation, the movable valve plug further includes a spring that abuts the movable valve plug to cause the movable valve plug to normally close the upper opening, and a positioning ring disposed above the lower opening.

A positioning sleeve corresponding to the shape of the accommodating space is further disposed in the accommodating space of the airtight cap, and the movable valve plug is disposed in the positioning sleeve, so that when the pressure safety valve is assembled, the movable valve plug can be first installed in the positioning Inside the sleeve, the entire set of positioning kits is placed in the accommodation space of the airtight cap.

When implemented, a stop ring having an outer diameter larger than the opening in the accommodating space is disposed around the movable valve plug to prevent the movable valve plug from falling out of the accommodating space.

In implementation, the side wall of the hollow gas permeable portion has a plurality of perforations communicating with the hollow portion.

In implementation, the hollow gas permeable portion is a soft tubular tube that allows the user to laterally displace the hollow gas permeable portion after pushing the airtight cap laterally.

In practice, the through hole is disposed at the center of the top of the lid, and the through hole is provided with a grip assembly for the user to extract, the grip assembly includes a grip having a through end at one end, and a through hole a connecting joint fixedly coupled between the hole and the through hole, a convex ring having an outer diameter larger than the through hole is extended around the bottom of the connecting seat, and a collar of the top surface of the through hole of the cover is disposed at the periphery of the connecting seat, And a buffer ring piece disposed between the bottom surface of the through hole of the lid and the convex ring; the connecting seat is provided with a fixing hole connecting the outside atmosphere, and the pressure safety valve is disposed in the fixing hole and is exposed to the grip In the through opening, the through opening limits the extent to which the airtight cap accepts the push.

In implementation, the outer wall of the adapter seat is provided with an external thread, and the inner wall of the through opening of the grip is provided with an internal thread screwed to the external thread.

When implemented, the lid body is made of transparent tempered glass.

Compared with the prior art, the pressure safety valve of the present invention automatically relieves pressure when the positive pressure in the pot is too large, and can automatically open the atmosphere when the negative pressure exceeds the safe value in the pot, balance the pressure in the pot body, and avoid the lid. Damaged due to excessive negative pressure.

In the following, according to the technical means of the creation, the implementation method suitable for the creation is listed, and the description is as follows:

1‧‧‧ pot body

2‧‧‧ pot lid

3‧‧‧through holes

4‧‧‧pressure safety valve

10‧‧‧ grip assembly

11‧‧‧through opening

12‧‧‧ grip

13‧‧‧Connecting Block

14‧‧ ‧ convex ring

15‧‧‧ collar

16‧‧‧buffer ring

17‧‧‧Fixed holes

20‧‧‧ airtight cap

21‧‧‧ accommodating space

22‧‧‧Opening

23‧‧‧ opening

30‧‧‧ hollow venting

31‧‧‧Perforation

40‧‧‧ Limit ring

50‧‧‧ Positioning sleeve

60‧‧‧ active valve plug

61‧‧‧stop ring

62‧‧‧ Magnetic components

63‧‧‧ Spring

64‧‧‧ positioning ring

The first picture: a schematic diagram of the location of the creation.

The second picture: the exploded view of the creation.

The third picture: a cross-sectional view of the structure of the creation.

Figure 4: Schematic diagram showing the sealed through hole of this creation.

Figure 5: This creation is a schematic diagram of the pressure relief caused by the upward positive pressure in the pot.

Figure 6: This creation is a schematic diagram of the sealed through hole by the downward displacement of the negative pressure in the pot.

Figure 7: Schematic diagram of the user pushing the airtight cap manually to balance the negative pressure inside the pan.

Figure 8: This creation is a schematic diagram of the automatic opening of the active valve plug by the negative pressure in the pot.

Figure IX: Schematic diagram of another setting position of the creation.

Figure 11 is a perspective exploded view of the second embodiment of the present creation.

Figure 11 is a cross-sectional view showing the structure of the second embodiment of the present invention.

Twelfth Figure: A second embodiment of the present invention is a schematic diagram of automatically opening an active valve plug by suction under a vacuum in a pot.

As shown in the first figure, the airtight pan comprises a pot body 1 and a lid 2, and the outer circumference of the lid 2 is provided with a sealing ring which can be tightly closed around the pot body 1 and is arranged on the lid 2 There is a through hole 3, the pressure relief valve 4 can be directly disposed in the through hole 3 as shown in the ninth figure, or as shown in the first to eighth figures, the through hole 3 is disposed at the top of the top of the lid 2, and is transparent. The hole 3 is provided with a grip assembly 10 for the user to extract, and the aforementioned pressure relief valve 4 is disposed on the grip assembly 10. When implemented, the body of the lid 2 can be made of transparent tempered glass.

The grip assembly 10 includes a grip 12 having a through hole 11 at one end thereof, and a coupling seat 13 fixedly coupled between the through hole 3 and the through hole 11. The outer diameter of the connecting seat 13 is extended to be larger than the outer diameter. The convex ring 14 of the through hole 3, and the outer periphery of the connecting seat 13 is provided with a collar 15 which abuts against the top surface of the through hole 3 of the lid 2, and a clip a buffer ring 16 disposed between the bottom surface of the through hole 3 of the lid 2 and the convex ring 14; the connecting seat 13 is provided with a fixing hole 17 communicating with the outside atmosphere, and the pressure safety valve 4 is disposed in the fixing hole 17 While being exposed in the through opening 11 of the grip 12, the through opening 11 limits the range in which the pressure relief valve 4 receives the push. In practice, the outer wall of the adapter seat 13 is provided with an external thread, and the inner wall of the through hole 11 of the grip 12 is provided with an internal thread screwed to the external thread.

As shown in the second and third figures, the pressure relief valve 4 has a gas-tight cap 20 protruding from the top surface of the lid 2 and having an outer diameter larger than the fixing hole 17, and a length disposed below the gas-tight cap 20. A hollow gas permeable portion 30 that is larger than the depth of the fixing hole 17 and movable up and down in the fixing hole 17, and a retaining ring 40 disposed around the bottom of the hollow gas permeable portion 30 and having an outer diameter larger than the fixing hole 17 is provided. In implementation, the side wall of the hollow gas permeable portion 30 has a plurality of perforations 31 communicating with the hollow portion thereof.

As shown in the fourth figure, as the pot body 1 is heated, the positive pressure is gradually generated in the pot. When the positive pressure in the pot exceeds the set value, as shown in the fifth figure, the positive pressure can push the airtight cap 20 and The hollow gas permeable portion 30 is displaced upward to allow the inside of the pot body 1 to communicate with the outside atmosphere, and the airtight state between the lid 2 and the pot body 1 is released to release the pressure.

As shown in the sixth figure, when the pot body 1 stops heating and generates an inward negative pressure, the pressure safety valve 4 is attracted to the reset, so that the lid 2 is returned to the airtight state, so that the essence of the food material is more easily released into the soup. Improve the deliciousness of the dishes.

As shown in the seventh embodiment, the airtight cap 20 has an accommodating space 21 having an upper opening 22 and a lower opening 23 to communicate between the outside atmosphere and the hollow venting portion 30, and the accommodating space 21 Further, a positioning sleeve 50 corresponding to the shape of the accommodating space 21 is further disposed. The positioning sleeve 50 is internally provided with a movable valve plug 60 that normally closes the upper opening 22; when implemented, the outer diameter of the movable valve plug 60 is larger than the accommodating The stop ring 61 of the opening 22 in the space 21 prevents the movable valve plug 60 from falling out of the accommodating space 21.

When the movable valve plug 60 is implemented, a magnetic component 62 is attracted between the top surface and the bottom surface of the corresponding upper opening 22, and the magnetic component 62 allows the movable valve plug 60 to normally close the upper opening 22. Or as shown in the tenth to twelfth drawings, the movable valve plug 60 further includes a spring 63 and a fixed portion disposed above the lower opening 23. The bit ring 64 is configured to abut against the movable valve plug 60 to cause the movable valve plug 60 to normally close the upper opening 22.

During assembly, the movable valve plug 60, the spring 63 and the positioning ring 64 can be installed in the positioning sleeve 50 first, and then the entire set of positioning sleeves 50 are installed in the accommodating space 21 of the airtight cap 20.

The hollow venting portion 30 is of a soft tubular shape. When an excessively large negative pressure is generated in the pan, the airtight cap 20 can be pushed laterally in a manual manner so that the hollow venting portion 30 is moved upward to cause the internal negative pressure of the pan body 1 to pass through the upper opening of the accommodating space 21. 22. The lower opening 23 communicates with the outside atmosphere to release the negative pressure between the lid 2 and the pot body 1, or as shown in the eighth figure, the negative pressure suction movable valve plug 60 in the pot is automatically displaced downward to make the pot Connect with the outside atmosphere to balance the pressure inside the pot.

With the above configuration, when the artificial pressure safety valve 4 generates an excessive outward positive pressure in the pot, it can be pushed upward by the positive pressure to cause the pot body 1 to communicate with the outside atmosphere through the hollow gas permeable portion 30, and the lid 2 is released. The pressure is released from the airtight state between the pot body 1; when a negative pressure is generated in the pot, the negative pressure first attracts the pressure relief valve 4 to reset the seal, and if the negative pressure continues to increase beyond the safe value, the movable valve plug 60 is negative. The pressure suction is displaced downward, and the negative pressure in the pot is communicated with the outside atmosphere through the upper opening 22 and the lower opening 23 of the accommodating space 21 to balance the pressure in the pot body 1.

The above description of the embodiments and the drawings are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; any similarity or similarity to the structure, device, and features of the present invention should be It is the creation purpose of this creation and the scope of patent application.

4‧‧‧pressure safety valve

20‧‧‧ airtight cap

21‧‧‧ accommodating space

22‧‧‧Opening

23‧‧‧ opening

30‧‧‧ hollow venting

31‧‧‧Perforation

40‧‧‧ Limit ring

50‧‧‧ Positioning sleeve

60‧‧‧ active valve plug

61‧‧‧stop ring

62‧‧‧ Magnetic components

Claims (10)

A pressure safety valve for an airtight lid, the outer circumference of the lid is provided with a sealing ring which can be tightly closed around the pot body, and a through hole is arranged in the lid, wherein: the pressure safety valve is arranged in the through hole The pressure relief valve has a gas-tight cap protruding from the top surface of the lid and having an outer diameter larger than the through-hole, a hollow gas permeable portion disposed under the gas-tight cap and capable of moving up and down in the through-hole, and a setting When the pressure safety valve generates an excessive outward positive pressure in the pot around the bottom of the hollow gas permeable portion and the outer diameter is larger than the through hole, the positive pressure can push the airtight cap and the hollow gas permeable portion upward to make the pot The body communicates with the outside atmosphere to release the airtight state between the lid and the pot body to release pressure; the airtight cap has an accommodating space, the accommodating space has an upper and a lower opening and communicates with the external atmosphere and the hollow ventilation Between the parts, and at least one movable valve plug with a normally closed upper opening is provided therein. When an excessive negative pressure is generated in the pot, the negative pressure attracts the movable valve plug to be displaced downward, so that the internal negative pressure of the pot body passes through the accommodating space. The lower opening communicates with the outside atmosphere and is released A negative pressure between the lid and the pan. The pressure safety valve of the airtight lid according to claim 1, wherein a magnetic component that can attract each other to close the upper opening of the movable valve plug is provided between the top surface of the movable valve plug and the bottom surface of the corresponding upper opening. . The pressure relief valve of the airtight lid according to claim 1, wherein the movable valve plug further comprises a spring that abuts the movable valve plug to close the upper opening of the movable valve plug, and a lower portion is disposed above the lower opening. Locating ring. The pressure relief valve of the airtight lid according to the second or third aspect of the invention, wherein the accommodating space of the airtight cap further comprises a positioning sleeve corresponding to the shape of the accommodating space, the movable valve plug Set in the positioning sleeve. The pressure relief valve of the airtight lid according to the second or third aspect of the patent application, wherein the movable valve plug is provided with a stop ring having an outer diameter larger than an opening in the accommodating space. A pressure relief valve for a gas tight lid as described in claim 2 or 3, wherein the hollow gas permeable side wall has a plurality of perforations communicating with the hollow portion. Pressure safety of the airtight lid as described in item 2 or 3 of the patent application The valve, wherein the hollow gas permeable portion is a soft tubular tube that allows the user to laterally displace the hollow gas permeable portion after pushing the airtight cap laterally. The pressure relief valve of the airtight lid as described in claim 2 or 3, wherein the through hole is disposed at the center of the top of the lid, and the through hole is provided with a grip assembly for the user to extract The grip assembly includes a grip having a through hole at one end, and a joint seat fixedly coupled between the through hole and the through hole, and a convex ring having an outer diameter larger than the through hole is extended around the bottom of the joint. And a sleeve ring that abuts against the top surface of the through hole of the lid and a buffer ring piece that is sandwiched between the bottom surface of the through hole of the lid and the convex ring; the connecting seat is provided with an external connection The fixed hole of the atmosphere, the pressure relief valve is disposed in the fixing hole and is exposed in the through hole of the grip, and the through hole limits the range in which the airtight cap receives the push. The pressure safety valve of the airtight lid according to claim 8, wherein the outer wall of the joint is provided with an external thread, and the inner wall of the through hole of the grip is provided with an internal thread screwed to the external thread. A pressure safety valve for an airtight lid as described in claim 2 or 3, wherein the lid body is made of transparent tempered glass.