Multifunctional pressure cooker with multiple safety valve structures

Abstract

The utility model discloses a multifunctional pressure cooker with multiple safety valve structures, comprising: high pressure cooker and pot cover, and the pot cover can be through the clamping groove formula screwing and is closed in high pressure cooker, and the upper surface of pot cover is fixedly installed with ring disc, and the both ends of ring disc are downward inclined, and two groups of inclined surfaces of ring disc are all fixedly installed with locking mechanism, and the locking mechanism can be hooked in the outer surface of end handle, and the end handle is fixedly installed at the both ends of the outer surface of high pressure cooker. Through the design of locking mechanism, the utility model makes it form the double locking structure of mechanical occlusion + spring force storage by the elastic push and the sleeve buckle of hook plate, can effectively resist the internal pressure impact when high pressure cooker is cooking and the vibration force generated by outdoor bumping, avoids the accidental loosening of locking mechanism, and ensures that the pot cover and high pressure cooker always stably fit.

Description

Technical Field

[0001] This utility model relates to the field of pressure cooker technology, specifically a multi-functional pressure cooker with multiple safety valves. Background Technology

[0002] A pressure cooker is a kitchen appliance that utilizes the physical phenomenon that the boiling point of a liquid increases under higher pressure. By applying pressure to water, the water can reach a higher temperature without boiling, thus speeding up the cooking process. Due to social development, self-driving tours have become relatively popular, making pressure cookers an essential household appliance for self-driving tours.

[0003] For example, the national authorized patent announcement number CN221129592U discloses a pressure cooker assembly, belonging to the field of pressure cooker technology. It solves the problems of existing household pressure cookers being inconvenient to use outdoors and having poor heat insulation. This pressure cooker assembly includes a pot body and a lid. The pot body has two symmetrically arranged handles connected to it, and the lid has a connecting component that connects to it, facilitating the sealing and tightening of the lid and pot body. This connecting component consists of several snap-fit ​​units and a mounting shell plate for installing the snap-fit ​​units. The mounting shell plate has handle units connected to it, facilitating the lifting of the lid. This utility model has the advantages of convenient use and good heat insulation.

[0004] However, in the pressure cooker components mentioned above, the undulating block used to assist in lid positioning or pressure adjustment relies solely on its own shape or simple elastic elements to fit with adjacent components, lacking a dedicated locking mechanism. In bumpy outdoor scenarios such as road trips, it is very easy for the undulating block to disengage due to vibration. Or, when cooking outdoors, the unstable heat source causes slight fluctuations in the pressure inside the pot, which in turn causes the undulating block to shake slightly. The vibration will gradually offset the fitting force between the undulating block and the adjacent components, causing it to disengage from its original mating position, i.e., the disengagement phenomenon occurs. Utility Model Content

[0005] The purpose of this utility model is to provide a multifunctional pressure cooker with multiple safety valves to solve the problem mentioned in the background art where the undulating block of the pressure cooker component relies solely on its own shape or a simple elastic element to fit with adjacent components and lacks a dedicated locking mechanism. In bumpy outdoor scenarios such as self-driving tours, the undulating block is easily unlocked due to vibration, or the unstable heat source during outdoor cooking causes small fluctuations in the pressure inside the pot, which causes the undulating block to shake, thereby causing the vibration to cancel out the fitting force and resulting in the undulating block disengaging from the mating position.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A multifunctional pressure cooker with multiple safety valves includes a pressure cooker and a lid. The lid can be screwed onto the pressure cooker using a slotted mechanism. A ring plate is fixedly installed on the upper surface of the lid. The two ends of the ring plate are inclined downwards. A locking mechanism is fixedly installed on both inclined surfaces of the ring plate. The locking mechanism can hook onto the outer surface of the end handle. The end handle is fixedly installed on both ends of the outer surface of the pressure cooker.

[0007] Preferably, a pressure limiting valve, a safety valve, and a pressure relief valve are fixedly installed on the upper surface of the ring plate, and the pressure limiting valve, safety valve, and pressure relief valve can all be connected to the pressure cooker through the pot lid.

[0008] Preferably, the pressure relief valve will open when both the pressure limiting valve and the safety valve fail, releasing excessive pressure inside the pot to prevent dangerous situations such as explosions.

[0009] Preferably, the locking mechanism includes two sets of U-shaped frames, which are respectively fixedly installed on the inclined surfaces at both ends of the ring disc. A pressure handle is rotatably installed on the outer surface of each set of U-shaped frames, and a hook frame is rotatably installed between the outer surfaces of the pressure handles. The hook frame can be hooked onto the outer surface of the end handle by flipping the pressure handle.

[0010] Preferably, the U-shaped frame has a guide rail groove, a limit rod is fixedly installed in the guide rail groove, a guide rail block is slidably installed on the outer surface of the limit rod, the guide rail block slides in the guide rail groove, and a hook plate is fixedly installed on the upper surface of the guide rail block, the outer surface of the hook plate is an inclined arc surface.

[0011] Preferably, a spring is sleeved on the outer surface of the limiting rod, and the two ends of the spring are respectively fixedly connected to one end of the guide rail groove and one end of the guide rail block, so that the spring can apply a spring force to the guide rail block.

[0012] Preferably, when a downward force is applied to the handle, causing it to flip and press down around the connection point, the frame opening at one end of the handle will simultaneously press down on the inclined arc surface of the hook plate. Under the squeezing force of the frame opening, the hook plate will drive the guide block connected to it to slide along the guide groove towards the end away from the handle. During the sliding process, the guide block will continuously compress the spring in the guide groove, keeping the spring in an energy storage state until the handle is completely pressed against the outer surface of the U-shaped frame. The pressure of the frame opening on the inclined arc surface of the hook plate will then disappear. At this time, the spring in the compressed state will release its stored energy, pushing the guide block to drive the hook plate to rebound in the opposite direction along the guide groove, ultimately allowing the hook plate to be fastened onto the upper surface of the handle, thus locking the handle.

[0013] Compared with the prior art, the beneficial effects of this utility model are: Through the interlocking design of the slotted screw-on mechanism and the locking mechanism of "hook holder - handle pressing down - spring storage - hook plate locking", the pot lid can be easily disassembled and stably locked. This not only lowers the operation threshold and saves disassembly and assembly time, but also resists the pressure impact inside the pot and outdoor bumps to prevent the lock from loosening. At the same time, it is equipped with a triple pressure safety system of "pressure limiting valve stabilization - safety valve secondary regulation - pressure relief valve extreme protection" to comprehensively avoid the risk of pressure runaway and maintain the high-pressure cooking zone to improve the efficiency of food cooking. Ultimately, it achieves the integrated effect of "easy operation, safe and reliable, and efficient cooking", which is suitable for various scenarios such as family and outdoor self-driving tours. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the pot lid and the ring plate of this utility model; Figure 3 This is a schematic diagram of the locking mechanism of this utility model.

[0015] In the diagram: 1. Pressure cooker; 101. End handle; 102. Lid; 103. Ring plate; 104. Pressure limiting valve; 105. Safety valve; 106. Pressure relief valve; 2. Locking mechanism; 201. U-shaped frame; 202. Pressure handle; 203. Hook frame; 204. Frame opening; 205. Guide rail groove; 206. Guide rail block; 207. Hook plate; 208. Limiting rod; 209. Spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-2 As shown, this embodiment provides a multi-functional pressure cooker with multiple safety valves, including: a pressure cooker 1 and a lid 102. The lid 102 can be screwed onto the pressure cooker 1 via a slot. A ring plate 103 is fixedly installed on the upper surface of the lid 102. The two ends of the ring plate 103 are inclined downwards. A locking mechanism 2 is fixedly installed on both inclined surfaces of the ring plate 103. The locking mechanism 2 can hook onto the outer surface of the end handle 101. The end handle 101 is fixedly installed on both ends of the outer surface of the pressure cooker 1.

[0018] The upper surface of the ring plate 103 is fixedly equipped with a pressure limiting valve 104, a safety valve 105, and a pressure relief valve 106. The pressure limiting valve 104, the safety valve 105, and the pressure relief valve 106 can all be connected to the pressure cooker 1 through the pot lid 102. When the pressure limiting valve 104 and the safety valve 105 fail at the same time, the pressure relief valve 106 will open to release the excessive pressure inside the pot to prevent dangerous situations such as explosion.

[0019] Through the design of the pressure cooker 1, end handle 101, lid 102, ring plate 103, pressure limiting valve 104, safety valve 105, pressure relief valve 106, and locking mechanism 2, when in use, first place the food to be cooked into the pressure cooker 1, then screw the lid 102 onto the pressure cooker 1 using a slotted screw-on method. At this time, operate the locking mechanism 2 on the two sets of inclined surfaces of the ring plate 103, so that the locking mechanism 2 hooks onto the outer surface of the end handle 101 at both ends of the outer surface of the pressure cooker 1, completing the stable locking of the lid 102 to the pressure cooker 1, preventing the lid 102 from loosening due to pressure or external force during cooking. Then, the pressure is increased. The pressure cooker 1 is heated. As the heating process progresses, the water inside the pressure cooker 1 evaporates to form steam, and the pressure inside the cooker gradually increases. When the pressure rises to the set working pressure of the pressure limiting valve 104, the pressure limiting valve 104 automatically opens, releasing some of the steam inside the cooker through the venting action, thus maintaining the pressure inside the cooker within a stable range suitable for cooking and ensuring that the food is cooked quickly and thoroughly under high pressure. If the pressure limiting valve 104 fails to open properly due to a malfunction, causing the pressure inside the cooker to continue to rise and exceed the working range of the pressure limiting valve 104, the safety valve 105 at the ring plate 103 on the lid 102 will be activated to further release excess steam inside the cooker. The residual steam is used for secondary pressure regulation. In extreme cases, if both the pressure limiting valve 104 and the safety valve 105 fail simultaneously, and the pressure inside the pot continues to rise to the trigger pressure of the pressure relief valve 106, the pressure relief valve 106 will immediately open, quickly releasing the excessive pressure inside the pot. This effectively prevents dangerous situations such as explosions caused by excessive pressure in the pressure cooker 1, until the pressure inside the pot drops to a safe range. After the food is cooked, heating is stopped. As the temperature inside the pot gradually decreases, the pressure also decreases. When the pressure drops to a safe value, the locking mechanism 2 releases the hook of 101 at the opposite end, and then the lid is opened by reverse operation through the slotted screw-on mechanism. 102. The ingredients in the pot can be removed. From the normal pressure stabilization of the pressure limiting valve 104, to the secondary pressure regulation of the safety valve 105, and then to the extreme failure protection of the pressure relief valve 106, a triple pressure protection system is formed. It can cope with different risk scenarios such as valve failure and dual valve failure, and completely avoid the risk of explosion caused by excessive pressure. It is especially suitable for the safety needs of complex outdoor environments such as self-driving tours. At the same time, the double locking design of the locking mechanism 2 and the slot-type screw engagement can firmly fix the pot lid 102, preventing the pot lid 102 from loosening due to pressure impact or external force collision during cooking, further improving the safety of use.

[0020] like Figure 3As shown, the locking mechanism 2 includes two sets of U-shaped frames 201, which are fixedly installed on the inclined surfaces at both ends of the ring disc 103. A pressure handle 202 is rotatably mounted on the outer surface of each set of U-shaped frames 201. A hook 203 is rotatably mounted between the outer surfaces of the pressure handles 202. The hook 203 can be hooked onto the outer surface of the end handle 101 by flipping the pressure handle 202. A guide rail groove 205 is provided inside the U-shaped frame 201. A limit rod 208 is fixedly installed in the guide rail groove 205. A guide rail block 206 is slidably mounted on the outer surface of the limit rod 208. The guide rail block 206 slides within the guide rail groove 205. A hook plate 207 is fixedly mounted on the upper surface of the guide rail block 206. The outer surface of the hook plate 207 is an inclined arc shape. A spring 209 is fitted on the outer surface of the limiting rod 208. The two ends of the spring 209 are fixedly connected to one end of the guide rail groove 205 and one end of the guide rail block 206, respectively, so that the spring 209 can apply a spring force to the guide rail block 206.

[0021] When a downward force is applied to the handle 202, causing it to flip and press down around the connection point, the frame opening 204 at one end of the handle 202 will simultaneously press down on the inclined arc surface of the hook plate 207. Under the squeezing force of the frame opening 204, the hook plate 207 will drive the guide block 206 connected to it to slide along the guide groove 205 towards the end away from the handle 202. During the sliding process, the guide block 206 will continuously compress the spring 209 in the guide groove 205, so that the spring 209 is in a stored energy state until the handle 202 is completely pressed against the outer surface of the U-shaped frame 201. The pressure of the frame opening 204 on the inclined arc surface of the hook plate 207 will then disappear. At this time, the spring 209 in the compressed state will release its stored energy, pushing the guide block 206 to drive the hook plate 207 to rebound in the opposite direction along the guide groove 205, and finally allowing the hook plate 207 to be fastened to the upper surface of the handle 202, thereby locking the handle 202.

[0022] Through the design of the U-shaped frame 201, pressure handle 202, hook frame 203, frame opening 204, guide rail groove 205, guide rail block 206, hook plate 207, limiting rod 208, and spring 209, when using the pressure cooker 1 for locking operation, first, the lid 102 is screwed onto the pressure cooker 1 using a slot-type screw-on mechanism. Then, the hook frame 203, which is rotatably mounted on the outer surface of the pressure handle 202, is hooked onto the outer surface of the end handle 101. Subsequently, a downward force can be applied to the pressure handle 202. The pressure handle 202 is flipped and pressed down around the connection point with the U-shaped frame 201. During the pressing process, the frame opening 204 at one end of the pressure handle 202 simultaneously presses down on the inclined arc surface of the hook plate 207. Under the squeezing force of the frame opening 204, the hook plate 207 drives the guide rail block 206 connected to it to slide along the guide rail groove 205 towards the end away from the pressure handle 202. During the sliding process, the guide rail block 206 continuously compresses the spring 209 in the guide rail groove 205. The spring 209 is in a stored state until the handle 202 is fully pressed against the outer surface of the U-shaped frame 201. The pressure of the frame opening 204 on the inclined arc surface of the hook plate 207 then disappears. At this point, the compressed spring 209 releases its stored energy, pushing the guide block 206 to cause the hook plate 207 to rebound in the opposite direction along the guide groove 205. Finally, the hook plate 207 is locked onto the upper surface of the handle 202, thus locking the handle 202. The entire locking process only requires first hooking the hook frame 203 onto the end... Applying downward force to the pressure handle 202 after pressing 101 will trigger the linkage. No complicated alignment or multi-step operation is required. It can effectively resist the internal pressure impact during cooking of the pressure cooker 1, as well as the vibration force generated by outdoor bumps, and prevent the locking mechanism 2 from being accidentally loosened. It ensures that the lid 102 and the pressure cooker 1 are always stably attached. When it is necessary to unlock, simply pull the hook plate 207 to release it from the buckle on the pressure handle 202. Then, the lid 102 can be opened by reverse operation through the slot-type screw engagement.

[0023] Based on the above technical solution, the working steps of this solution are summarized as follows: In use, first, place the ingredients to be cooked into the pressure cooker 1. Then, screw the lid 102 onto the pressure cooker 1 using a slotted screw-on method. Next, hook the hook 203, which is rotatably mounted on the outer surface of the pressure handle 202, onto the outer surface of the end handle 101. Then, apply a downward force to the pressure handle 202, causing it to rotate and press down around the connection point with the hook 201. During this pressing process, the frame opening 204 at one end of the pressure handle 202 simultaneously presses down on the inclined arc surface of the hook plate 207, allowing it to be squeezed by the frame opening 204, causing the hook plate 207 to... 07 drives the guide block 206 connected to it to slide along the guide groove 205 towards the end away from the pressure handle 202. During the sliding process, the guide block 206 continuously compresses the spring 209 in the guide groove 205, keeping the spring 209 in an energy-storing state until the pressure handle 202 is completely pressed against the outer surface of the U-shaped frame 201. The pressure of the frame opening 204 on the inclined arc surface of the hook plate 207 then disappears. At this time, the compressed spring 209 releases its stored energy, pushing the guide block 206 to cause the hook plate 207 to rebound in the opposite direction along the guide groove 205, finally allowing the hook plate 207 to be fastened onto the upper surface of the pressure handle 202, thus locking the pressure handle 202. The pressure cooker 1 can be heated. As the heating process progresses, the water inside the pressure cooker 1 evaporates to form steam, and the pressure inside the cooker gradually increases. When the pressure rises to the set working pressure of the pressure limiting valve 104, the pressure limiting valve 104 automatically opens, releasing some of the steam inside the cooker through the venting action, thus maintaining the pressure inside the cooker within a stable range suitable for cooking and ensuring that the food is cooked quickly under high pressure. If the pressure limiting valve 104 fails to open normally due to a malfunction, causing the pressure inside the cooker to continue to rise and exceed the working range of the pressure limiting valve 104, the safety valve 105 at the ring plate 103 on the lid 102 will be activated to further release excess steam inside the cooker and control the pressure. Secondary regulation is performed. In extreme cases, if the pressure limiting valve 104 and the safety valve 105 fail simultaneously, and the pressure inside the pot continues to rise to the trigger pressure of the pressure relief valve 106, the pressure relief valve 106 will open immediately to quickly release the excessive pressure inside the pot, effectively preventing dangerous situations such as explosion caused by excessive pressure in the pressure cooker 1, until the pressure inside the pot drops to a safe range. After the food is cooked, heating is stopped. As the temperature inside the pot gradually decreases, the pressure also decreases. When the pressure drops to a safe value, it can be released from the buckle on the pressure handle 202 by pulling the hook plate 207. Then, the pot lid 102 can be opened by reverse operation of the slotted screw-on, and the food inside the pot can be taken out.

[0024] In summary: By using the spring-loaded push and snap-locking mechanism of the hook plate 207, a dual locking structure is formed, consisting of mechanical engagement and spring 209 for force-pressing. This effectively resists the internal pressure impact during cooking in the pressure cooker 1, as well as the vibration force generated by outdoor bumps, preventing the locking mechanism 2 from accidentally loosening and ensuring that the lid 102 and the pressure cooker 1 are always stably and securely fitted. Furthermore, through the normal pressure stabilization of the pressure limiting valve 104, the secondary pressure regulation of the safety valve 105, and the extreme failure protection of the pressure relief valve 106, a triple pressure protection system is formed. This system can cope with different risk scenarios such as valve failure and dual valve failure, completely avoiding the risk of explosion caused by excessive pressure. It is especially suitable for the safety needs of complex outdoor environments such as self-driving tours.

[0025] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional pressure cooker with multiple safety valves, characterized in that, include: The pressure cooker (1) and the lid (102) are provided. The lid (102) can be screwed onto the pressure cooker (1) by a slot. A ring plate (103) is fixedly installed on the upper surface of the lid (102). The two ends of the ring plate (103) are inclined downwards. A locking mechanism (2) is fixedly installed on both inclined surfaces of the ring plate (103). The locking mechanism (2) can be hooked onto the outer surface of the end handle (101). The end handle (101) is fixedly installed on both ends of the outer surface of the pressure cooker (1).

2. A multi-functional pressure cooker with multiple safety valves according to claim 1, characterized in that: A pressure limiting valve (104), a safety valve (105), and a pressure relief valve (106) are fixedly installed on the upper surface of the ring plate (103). The pressure limiting valve (104), the safety valve (105), and the pressure relief valve (106) can all be connected to the pressure cooker (1) through the pot lid (102).

3. A multi-functional pressure cooker with multiple safety valves according to claim 2, characterized in that: When the pressure relief valve (104) and the safety valve (105) fail simultaneously, the pressure relief valve (106) will open to release the excessive pressure inside the pot and prevent the occurrence of an explosion hazard.

4. A multi-functional pressure cooker with multiple safety valves according to claim 3, characterized in that: The locking mechanism (2) includes two sets of U-shaped frames (201). The two sets of U-shaped frames (201) are respectively fixedly installed on the inclined surfaces at both ends of the ring disc (103). A pressure handle (202) is rotatably installed on the outer surface of each set of U-shaped frames (201). A hook frame (203) is rotatably installed between the outer surfaces of the pressure handle (202). The hook frame (203) can be hooked onto the outer surface of the end handle (101) by flipping the pressure handle (202).

5. A multifunctional pressure cooker with multiple safety valves according to claim 4, characterized in that: The U-shaped frame (201) has a guide rail groove (205) inside, and a limit rod (208) is fixedly installed in the guide rail groove (205). A guide rail block (206) is slidably installed on the outer surface of the limit rod (208). The guide rail block (206) slides in the guide rail groove (205). A hook plate (207) is fixedly installed on the upper surface of the guide rail block (206). The outer surface of the hook plate (207) is an inclined arc surface.

6. A multifunctional pressure cooker with multiple safety valves according to claim 5, characterized in that: A spring (209) is fitted on the outer surface of the limiting rod (208). The two ends of the spring (209) are fixedly connected to one end of the guide rail groove (205) and one end of the guide rail block (206), so that the spring (209) can apply a spring force to the guide rail block (206).

7. A multifunctional pressure cooker with multiple safety valves according to claim 6, characterized in that: When a downward force is applied to the handle (202), causing it to flip and press down around the connection point, the frame opening (204) at one end of the handle (202) will simultaneously press down on the inclined arc surface of the hook plate (207). Under the squeezing force of the frame opening (204), the hook plate (207) will drive the guide block (206) connected to it to slide along the guide groove (205) towards the end away from the handle (202). During the sliding process, the guide block (206) will continuously compress the spring (2) in the guide groove (205). 09), so that the spring (209) is in an energy storage state until the pressure handle (202) is completely pressed against the outer surface of the U-shaped frame (201). The pressure of the frame opening (204) on the inclined arc surface of the hook plate (207) disappears. At this time, the spring (209) in the compressed state releases the stored energy, pushes the guide block (206) to drive the hook plate (207) to rebound in the opposite direction along the guide groove (205), and finally allows the hook plate (207) to be fastened on the upper surface of the pressure handle (202), thereby locking the pressure handle (202).

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