Exhaust pressure relief valve of micro-pressure pot

Abstract

The utility model discloses an exhaust pressure relief valve for a micro-pressure pot, which relates to the field of exhaust of micro-pressure pots and comprises a pot cover, an exhaust main pipeline is arranged at the upper end of the pot cover, a pressure relief head is fixedly connected to the upper end of the exhaust main pipeline, and an exhaust component is fixedly connected to the outer side of the exhaust main pipeline. The exhaust assembly comprises an exhaust side pipeline arranged on the outer side of the exhaust main pipeline, the upper end of the exhaust side pipeline is connected with an exhaust branch pipe in a penetrating mode, and exhaust sealing rings are fixedly connected to the positions, located on the two sides of the exhaust branch pipe, in the exhaust side pipeline. Through the arrangement of the exhaust assembly, when the air pressure in the pot reaches a fixed value, air enters the pressure relief bin and is exhausted through the pressure relief hole, meanwhile, the pressure value of the pressure relief valve can be adjusted by rotating the adjusting screw rod, and the use is more flexible; and gas in the pot body can be exhausted through the exhaust side pipeline, so that the use safety is improved.

Description

Technical Field

[0001] This utility model belongs to the field of pressure cooker exhaust, and specifically relates to a pressure relief valve for pressure cookers. Background Technology

[0002] Pressure cookers can be categorized into pressure cookers, pressure frying pans, etc. They fall between regular pots and pressure cookers. Pressure cookers typically operate at pressures below 1.2 atmospheres. Under this pressure, food cooks more easily than in a regular pot, and the lid can be opened at any time during operation. The pressure relief valve on a pressure cooker is a device used to regulate the pressure inside the pot. Its main function is to automatically or manually release steam and pressure during cooking to ensure safety and optimal cooking results.

[0003] A Chinese patent discloses a pressure relief valve for a micro-pressure cooker, comprising a valve cap sleeved on the upper outer side of a valve stem, with a pressure spring fixed to the upper end of the valve stem. One end of the pressure spring is connected to a sealing bead, which is located inside the valve cap. This pressure relief valve releases pressure and exhausts gas by pushing the valve up, allowing a certain amount of gas to escape before it falls back down to seal. This repeated up-and-down movement and sealing action, utilizing the sealing bead with the pressure spring, regulates the pressure inside and outside the micro-pressure cooker, preventing damage due to large pressure differences. Furthermore, during heating, guide blocks and guide grooves installed at equal angles on the surface facilitate gas escape from gaps, preventing excessive internal pressure from causing the pressure relief valve to rise and the sealing ring to tightly adhere to the inside of the lid, thus improving safety.

[0004] The defects in the above technical solution are: it cannot achieve manual venting, thus failing to realize the function of quick lid opening; and in the above structure, when the gas pressure inside the pot is too high, the sealing bead is easily pushed up and comes into contact with the hole, thus preventing venting and posing a safety hazard. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a pressure relief valve for a micro pressure cooker to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A pressure relief valve for a micro pressure cooker includes a lid. A main exhaust pipe is located at the top of the lid. A pressure relief head is fixedly connected to the top of the main exhaust pipe. An exhaust assembly is fixedly connected to the outside of the main exhaust pipe. The exhaust assembly includes an exhaust side pipe located outside the main exhaust pipe. An exhaust branch pipe is connected through the top of the exhaust side pipe. Exhaust sealing rings are fixedly connected to both sides of the exhaust branch pipe inside the exhaust side pipe. A sealing plug is slidably connected to the outer end of the exhaust side pipe. An exhaust sealing plate is fixedly connected to the inner end of the sealing plug inside the exhaust side pipe. The exhaust sealing plate cooperates with the exhaust sealing rings to achieve a seal. An operating head is fixedly connected to the outer end of the sealing plug. The operating head is detachably connected to the outer end of the exhaust side pipe.

[0008] When the operating head is connected to the outer end of the exhaust pipe, the sealing plate 45 is pressed against the inner exhaust sealing ring 43, and the exhaust branch pipe 42 is closed; when the operating head is disconnected from the outer end of the exhaust pipe, the sealing plate 45 is disconnected from the inner exhaust sealing ring 43, and the exhaust branch pipe 42 is opened.

[0009] As a preferred technical solution, the pressure relief head includes a pressure relief chamber disposed at the upper end of the exhaust main pipe. The pressure relief chamber is connected to the exhaust main pipe. An adjusting screw hole is opened at the upper end of the pressure relief chamber. An adjusting screw is threadedly connected to the internal thread of the adjusting screw hole. An adjusting head is fixedly connected to the upper end of the adjusting screw. A mounting plate is rotatably connected to the other end of the adjusting screw. A spring is fixedly connected to the lower end of the mounting plate. A pressure relief plate is fixedly connected to the other end of the spring. The pressure relief plate is movably connected to the bottom of the pressure relief chamber. Multiple pressure relief holes are opened on the outer side of the pressure relief chamber.

[0010] As a preferred technical solution, the lower end of the pressure relief plate is inserted into the bottom of the pressure relief chamber, the lower end of the pressure relief plate is fixedly connected to the upper sealing block, the bottom of the pressure relief chamber is provided with an upper sealing groove, and the upper sealing groove and the upper sealing block are inserted into each other.

[0011] As a preferred technical solution, the upper end of the pot lid is fixedly connected to an installation head, the interior of the installation head is threadedly connected to the outer surface of the exhaust main pipe, the interior of the installation head is provided with an installation screw hole, and the lower end of the exhaust main pipe is provided with an installation thread, the installation thread and the installation screw hole are threadedly connected to each other.

[0012] As a preferred technical solution, a lower sealing plate is fixedly connected to the upper end of the mounting thread on the outer surface of the main exhaust pipe. The lower end of the lower sealing plate is inserted into the upper end of the mounting head. A lower sealing block is fixedly connected to the lower end of the lower sealing plate. The lower sealing groove is opened on the outside of the mounting screw hole inside the mounting head. The lower sealing groove and the lower sealing block are inserted into each other.

[0013] As a preferred technical solution, the inner side of the operating head is threadedly connected to the outer end of the exhaust side pipe, and a connecting threaded cylinder is fixedly connected to the other end of the exhaust side pipe. The inner side of the operating head is provided with a connecting internal thread, and the connecting internal thread and the connecting threaded cylinder are threadedly connected to each other.

[0014] As a preferred technical solution, an installation edge is fixedly connected to the upper outer side of the main exhaust pipe. Each installation edge has an installation through hole on its outer side. An installation screw is inserted into the installation through hole, and the installation screw passes through the installation through hole and is threadedly connected to the pressure relief chamber.

[0015] In summary, the present invention has the following main advantages:

[0016] This invention features an exhaust assembly that allows gas to enter the pressure relief chamber and exit through the pressure relief hole when the internal pressure of the pot reaches a certain value. The pressure relief valve can be adjusted by rotating the adjusting screw, making it more flexible to use. Additionally, an exhaust side pipe allows for rapid exhaust of gas from inside the pot, improving safety during use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the exhaust main pipe of this utility model;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of the vent head of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the exhaust assembly of this utility model.

[0021] Reference numerals: 1. Pot lid; 2. Main exhaust pipe; 3. Pressure relief head; 31. Pressure relief chamber; 32. Pressure relief hole; 33. Adjusting screw hole; 34. Adjusting screw; 35. Adjusting head; 36. Mounting plate; 37. Spring; 38. Pressure relief plate; 4. Exhaust assembly; 41. Exhaust side pipe; 42. Exhaust branch pipe; 43. Exhaust sealing ring; 44. Sealing plug; 45. Exhaust sealing plate; 46. Operating head; 5. Mounting head; 6. Mounting screw hole; 7. Mounting thread; 8. Lower sealing plate; 9. Lower sealing block; 10. Lower sealing groove; 11. Mounting edge; 12. Mounting through hole; 13. Mounting screw; 14. Upper sealing block; 15. Upper sealing groove; 16. Connecting threaded cylinder; 17. Connecting internal thread. Detailed Implementation

[0022] Example

[0023] refer to Figures 1 to 4The pressure relief valve of the micro pressure cooker in this embodiment includes a pot lid 1. A main exhaust pipe 2 is provided at the upper end of the pot lid 1. A pressure relief head 3 is fixedly connected to the upper end of the main exhaust pipe 2. An exhaust assembly 4 is fixedly connected to the outside of the main exhaust pipe 2. The exhaust assembly 4 includes an exhaust side pipe 41 provided outside the main exhaust pipe 2. An exhaust branch pipe 42 is connected through the upper end of the exhaust side pipe 41. Exhaust sealing rings 43 are fixedly connected to both sides of the exhaust support rod 42 inside the exhaust side pipe 41. A sealing plug 44 is slidably connected to the outer end of the exhaust side pipe 41. An exhaust sealing plate 45 is fixedly connected to the inner end of the sealing plug 44 inside the exhaust side pipe 41. The exhaust sealing plate 45 cooperates with the exhaust sealing ring 43 to achieve sealing. An operating head 46 is fixedly connected to the outer end of the sealing plug 44. The operating head is detachably connected to the outer end of the exhaust side pipe.

[0024] When the operating head is connected to the outer end of the exhaust pipe, the sealing plate 45 is pressed against the inner exhaust sealing ring 43, and the exhaust branch pipe 42 is closed; when the operating head is disconnected from the outer end of the exhaust pipe, the sealing plate 45 is disconnected from the inner exhaust sealing ring 43, and the exhaust branch pipe 42 is opened.

[0025] refer to Figures 1-3 The pressure relief head 3 includes a pressure relief chamber 31 located at the upper end of the main exhaust pipe 2. The pressure relief chamber 31 is connected to the main exhaust pipe 2. An adjusting screw hole 33 is provided at the upper end of the pressure relief chamber 31. An adjusting screw 34 is threadedly connected to the inside of the adjusting screw hole 33. An adjusting head 35 is fixedly connected to the upper end of the adjusting screw 34. A mounting plate 36 is rotatably connected to the other end of the adjusting screw 34. A spring 37 is fixedly connected to the lower end of the mounting plate 36. A pressure relief plate 38 is fixedly connected to the other end of the spring 37. The pressure relief plate 38 is movably connected to the bottom of the pressure relief chamber 31. Multiple pressure relief holes 32 are provided on the outer side of the pressure relief chamber 31. As the gas pressure increases under heating, when it reaches a certain pressure, the spring force of spring 37 becomes less than the gas pressure, and the pressure relief plate 38 is pushed open to release the gas. Then, the gas enters the interior of the pressure relief chamber 31 and is discharged through the pressure relief hole 32. When releasing gas, as the gas pressure changes, when the gas pressure is less than the spring force of spring 37, the pressure relief plate 38 adheres to the bottom of the pressure relief chamber 31 to prevent air leakage. At the same time, the adjusting screw 34 can be rotated to drive the mounting plate 36 to apply pressure to spring 37, thereby increasing the spring force of spring 37 and thus increasing the gas pressure storage inside the cookware.

[0026] refer to Figure 3The lower end of the pressure relief plate 38 is inserted into the bottom of the pressure relief chamber 31. The lower end of the pressure relief plate 38 is fixedly connected to the upper sealing block 14. The bottom of the pressure relief chamber 31 is provided with an upper sealing groove 15, which is inserted into the upper sealing block 14. The upper sealing groove 15 and the upper sealing block 14 are designed to prevent air leakage inside the pressure relief chamber 31 when the internal pressure of the cookware is insufficient, thereby increasing the pressure of the cookware.

[0027] refer to Figure 1 and Figure 2 The upper end of the pot lid 1 is fixedly connected to the mounting head 5. The interior of the mounting head 5 is threadedly connected to the outer surface of the exhaust main pipe 2. The interior of the mounting head 5 is provided with a mounting screw hole 6. The lower end of the exhaust main pipe 2 is provided with a mounting thread 7. The mounting thread 7 is threadedly connected to the mounting screw hole 6. The mounting screw hole 6 and the mounting thread 7 allow the pressure relief valve to be disassembled and assembled during use, making it more convenient to maintain the pressure relief valve.

[0028] refer to Figure 1 and Figure 2 The outer surface of the exhaust main pipe 2 is fixedly connected to the upper end of the mounting thread 7 with a lower sealing plate 8. The lower end of the lower sealing plate 8 is inserted into the upper end of the mounting head 5. The lower end of the lower sealing plate 8 is fixedly connected to a lower sealing block 9. The interior of the mounting head 5 is provided with lower sealing grooves 10 on the outer side of the mounting screw hole 6. The lower sealing grooves 10 and the lower sealing blocks 9 are inserted into each other. The lower sealing grooves 10 and the lower sealing plate 8 can be used to seal the connection of the pressure relief valve to prevent air leakage at the connection and thus affect the pressure of the cookware.

[0029] refer to Figure 4 The inner side of the operating head 46 is threadedly connected to the outer end of the exhaust pipe 41. The other end of the exhaust pipe 41 is fixedly connected to a threaded sleeve 16. The inner side of the operating head 46 is provided with an internal thread 17, which is threadedly connected to the threaded sleeve 16. The threaded sleeve 16 and the internal thread 17 are designed to fix the sealing plug 44 during use, thereby preventing air leakage when pressurizing the inside of the pot.

[0030] refer to Figure 2 An installation edge 11 is fixedly connected to the upper outer side of the exhaust main pipe 2. Each installation edge 11 has an installation through hole 12. An installation screw 13 is inserted into the installation through hole 12. The installation screw 13 passes through the installation through hole 12 and is threadedly connected to the pressure relief chamber 31. The installation screw 13 and the installation edge 11 allow the pressure relief head 3 to be disassembled and assembled, making it more convenient to disassemble and assemble the pressure relief head 3 during maintenance.

[0031] Operating principle and advantages: First, the lid 1 is installed on the cookware. Then, the pressure relief valve can be installed through the mounting screw hole 6 and the mounting thread 7. After installation, the sealing plug 44 can be fixed through the connecting threaded sleeve 16 and the connecting internal thread 17, thus preventing air leakage when pressurizing the inside of the cookware. Then, the device can be used normally. When the cookware is used, the internal air pressure continuously increases under heating. When the pressure increases to a certain level, the elastic force of the spring 37 is less than the air pressure, and the pressure relief plate 38 will be pushed open to release the air. Then, the gas will enter the interior of the pressure relief chamber 31 and be discharged through the pressure relief hole 32. During the release, as the air pressure changes and is less than the elastic force of the spring 37, the pressure relief plate 38 fits against the bottom of the pressure relief chamber 31 to prevent air leakage. Simultaneously, by rotating the adjusting screw 34, the adjusting screw 34 drives the mounting plate 36 to apply pressure to the spring 37, thereby increasing the elasticity of the spring 37 during pressure application, which in turn increases the gas pressure storage inside the pot. At the same time, when it is necessary to open the pot lid 1 to release gas during use, the operating head 46 is turned to make the connecting internal thread 17 contact the connecting threaded cylinder 16 for threaded connection, so that the sealing plug 44 can be movably inserted into the other end of the exhaust side pipe 41. Then, the sealing plug 44 is pulled outward to pull the exhaust sealing plate 45 to the other side of the exhaust branch pipe 42. Then, the gas inside the pot will enter the interior of the exhaust branch pipe 42 through the exhaust side pipe 41 for exhaust effect, thereby enabling effective exhaust effect inside the pot during use. This increases the safety of using the pot by opening the pot lid 1 after exhaust is completed.

Claims

1. A pressure relief valve for a pressure cooker, characterized by: The utility model provides a kind of cooking pot cover, the upper end of the cooking pot cover is provided with exhaust main pipeline, the upper end of the exhaust main pipeline is fixedly connected with pressure relief head, the outer side of the exhaust main pipeline is fixedly connected with exhaust assembly, the exhaust assembly includes the exhaust side pipeline arranged in the outer side of exhaust main pipeline, the upper end of the exhaust side pipeline is connected with exhaust branch pipe, the inside of the exhaust side pipeline is fixedly connected with exhaust seal ring on both sides of exhaust branch rod, the outer end of the exhaust side pipeline is slidably connected with sealing plug, the inner end of the sealing plug is fixedly connected with exhaust seal plate in the inside of the exhaust side pipeline, the exhaust seal plate is sealed with exhaust seal ring cooperation, the outer end of the sealing plug is fixedly connected with operating head;Operating head and exhaust side pipeline outer end detachably connected.

2. The pressure relief valve according to claim 1, wherein: The pressure relief head includes a pressure relief chamber arranged at the upper end of the exhaust main pipeline, the pressure relief chamber is in communication with the exhaust main pipeline, an adjusting screw hole is formed at the upper end of the pressure relief chamber, an adjusting screw is threadedly connected in the adjusting screw hole, an adjusting head is fixedly connected to the upper end of the adjusting screw, an installation plate is rotatably connected to the other end of the adjusting screw, a spring is fixedly connected to the lower end of the installation plate, a pressure relief plate is fixedly connected to the other end of the spring, the pressure relief plate is movably connected to the bottom of the pressure relief chamber, a plurality of pressure relief holes are formed in the outer side of the pressure relief chamber.

3. The pressure relief valve of claim 2, wherein: The lower end of the pressure relief plate is inserted into the bottom of the pressure relief chamber, an upper end sealing block is fixedly connected to the lower end of the pressure relief plate, an upper end sealing groove is formed in the bottom of the pressure relief chamber, and the upper end sealing groove is inserted into the upper end sealing block.

4. The pressure relief valve of claim 1, wherein: The upper end of the cooking pot cover is fixedly connected with an installation head, the inner surface of the installation head is threadedly connected with the outer surface of the exhaust main pipeline, an installation screw hole is formed in the inner surface of the installation head, and an installation thread is formed on the lower end of the outer surface of the exhaust main pipeline, the installation thread is threadedly connected with the installation screw hole.

5. The pressure relief valve of claim 4, wherein: The outer surface of the exhaust main pipeline is fixedly connected with a lower end sealing plate at the upper end of the installation thread, the lower end of the lower end sealing plate is inserted into the upper end of the installation head, a lower end sealing block is fixedly connected to the lower end of the lower end sealing plate, a lower end sealing groove is formed in the outer side of the installation screw hole in the inner surface of the installation head, and the lower end sealing groove is inserted into the lower end sealing block.

6. The pressure release valve of claim 1, wherein: The inner surface of the operating head is threadedly connected with the outer end of the exhaust side pipeline, a connecting internal thread is formed in the inner surface of the operating head, and the connecting internal thread is threadedly connected with a connecting thread cylinder fixedly connected to the other end of the exhaust side pipeline.

7. The pressure release valve of claim 1 wherein: The outer surface of the exhaust main pipeline is fixedly connected with an installation edge at the upper end, an installation through hole is formed in the outer surface of the installation edge, an installation screw is inserted into the installation through hole, and the installation screw is threadedly connected with the pressure relief chamber through the installation through hole.

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