Pressurizing steamer

Abstract

The utility model discloses a pressurizing steamer which comprises a steamer body, a cover body and an elastic pressure unit, the cover body covers the steamer body in a sealed mode, the elastic pressure unit is used for conducting elastic pressurizing on the cover body, a pressure release valve is arranged on the cover body, and when the steamer body is heated, steam pressure generated in the steamer body is discharged through the pressure release valve. When the generated steam pressure is larger than a threshold value discharged by the pressure release valve, the steam pressure in the pot body can overcome the pressure applied to the cover body by the elastic pressure unit and the weight of the cover body, and then the cover body is jacked open, so that the redundant steam pressure in the pot body is released, and the steam pressure in the pot body is maintained within a set range. According to the pressurizing steamer, the cover body is elastically pressed through the elastic pressure unit, so that the pressurizing effect on the steamer can be achieved, the speed of cooking food materials is increased, the situation that the taste of the cooked food materials is affected due to the fact that the steam pressure in the steamer body is too high can be avoided, and nutrition of the food materials is reserved to the maximum extent; and meanwhile, the use safety of the pressurizing steamer can be effectively improved.

Description

A pressure steamer Technical Field

[0001] This utility model relates to the field of kitchenware technology, and in particular to a pressure steamer. Background Technology

[0002] A steamer is a kitchen appliance that uses steam to directly steam various foods. It is mainly used in homes, canteens, restaurants, and other places to steam or stew fish, shrimp, poultry, eggs, meat, noodles, and other foods. Of course, it can also be used to quickly heat up rice or other foods.

[0003] Currently, most steamers on the market use a fixed, airtight lid and body. An exhaust valve is installed on the lid. The sealed lid and body, along with the exhaust valve, create pressure inside the steamer to cook the food. However, because the lid and body are fixed in place, if the steam pressure exceeds the pressure relief valve's threshold while the steamer is continuously heating, the excess steam cannot be released. This leads to excessively high steam pressure, affecting the texture of the cooked food and preventing the preservation of its nutrients, resulting in unsatisfactory taste. Furthermore, the fixed lid and body also pose a risk of explosion if the steam pressure is too high, compromising safety. After heating is stopped, the pressure relief valve must be allowed to release steam until it equalizes with atmospheric pressure before the lid can be opened, causing inconvenience and negatively impacting the user experience. Summary of the Invention

[0004] The purpose of this invention is to provide a pressure cooker that is safe, has a pressurizing effect, and can ensure the taste of steamed food.

[0005] To solve the above technical problems, the present invention can be implemented using the following technical solutions:

[0006] A pressure-boosting steamer includes a pot body, a lid, and an elastic pressure unit. The lid is sealed to the pot body, and the elastic pressure unit provides elastic pressure to the lid. A pressure relief valve is provided on the lid. When the pot body is heated, the steam pressure generated inside is released by the pressure relief valve. When the generated steam pressure exceeds the threshold value of the pressure relief valve, the steam pressure inside the pot body overcomes the pressure exerted on the lid by the elastic pressure unit and the weight of the lid itself, thus opening the lid to release excess steam pressure inside the pot body and maintain the steam pressure inside the pot body within a set range. Furthermore, after heating the pot body is stopped, the elastic pressure unit can be easily operated to remove the elastic pressure on the lid without waiting for the pressure relief valve to release pressure, allowing the lid to be opened quickly and preventing overcooking of the food.

[0007] In one embodiment, the elastic pressure unit includes a handle and a limiting rod. The handle is located in the middle of the lid, and the limiting rod is made of elastic material. Both ends of the limiting rod are rotatably connected to the edge of the pot body, and limiting retaining rings are provided at the ends of the limiting rod. The limiting rod can rotate to the top of the handle to elastically limit the handle.

[0008] In one embodiment, the elastic pressure unit includes a handle and a limiting rod. The handle is located in the middle of the lid, and the two ends of the limiting rod are rotatably connected to the edge of the pot body. The handle includes a column, a pressure member, and a first elastic member. A connecting rod is movably inserted through the upper end of the column, and the top end of the connecting rod is connected to the pressure member. The first elastic member is sleeved on the connecting rod, and its two ends abut against the column and the pressure member, respectively. The limiting rod can rotate to the top of the pressure member to elastically limit the pressure member.

[0009] In one embodiment, the elastic pressure unit is provided in two sets, and the two sets of elastic pressure units are arranged opposite to each other on the two sides of the pot body. The elastic pressure unit includes a spring-loaded component and a second elastic component. The bottom end of the second elastic component is connected to the edge of the pot body, and the spring-loaded component is connected to the top end of the second elastic component. One end of the spring-loaded component is bent downward to elastically limit the lid. Soft rubber components are provided on the outer side of the spring-loaded component and the second elastic component, and on the inside of the second elastic component.

[0010] In one embodiment, the handle is provided with a negative pressure elimination unit, which includes a connector and a negative pressure elimination rod. The bottom of the handle is connected to the cover through the connector, and a through hole is provided in the middle of the connector. The negative pressure elimination rod is movably inserted into the handle, and a negative pressure elimination spring is provided between the upper end of the negative pressure elimination rod and the top of the handle. A plug is provided at the bottom end of the negative pressure elimination rod. When the limiting rod elastically limits the handle, the top of the negative pressure elimination rod can be limited and pressed to seal the through hole with the plug.

[0011] In one embodiment, the top of the handle is provided with a first positioning groove, and the middle of the limiting rod is provided with a positioning element. When the limiting rod rotates to the top of the handle for limiting, the positioning element will be placed in the first positioning groove to position the limiting rod.

[0012] In one embodiment, the pressure member has a second positioning groove at its top and a positioning element is provided in the middle of the limiting rod. When the limiting rod rotates to the top of the pressure member for limiting, the positioning element will be placed in the second positioning groove to position the limiting rod.

[0013] In one embodiment, the edge of the cover is provided with a sealing gasket, and the sealing gasket has an inverted buckle that mates with the inner edge of the pot.

[0014] In one embodiment, the pressure relief valve includes a valve body, a first compression spring, and a top ball. The bottom end of the valve body is mounted on the cover, and the valve body has an airflow resonance cavity. An air inlet communicating with the airflow resonance cavity is opened at the bottom end of the valve body, and an air outlet communicating with the airflow resonance cavity is opened on the side wall of the valve body. The first compression spring and the top ball are respectively disposed in the airflow resonance cavity, and the first compression spring presses the top ball against the air inlet, thereby blocking the air inlet. Both the air inlet and the air outlet are inclined to generate a whistling effect.

[0015] In one embodiment, the top of the valve body is threaded with an adjusting screw, one end of which passes through the airflow resonance cavity and connects to the first compression spring, while the other end of the adjusting screw is connected to a knob. The adjusting screw can be turned by the knob to adjust the pressure of the first compression spring on the top ball.

[0016] In one embodiment, a rotating unit is further provided between the elastic pressure unit and the pot body. The rotating unit includes a rotating component, a fixed sleeve, a positioning ring, a second compression spring, and a ball. The fixed sleeve is installed on the pot body. The rotating component is rotatably inserted through the bottom of the pot body and passes through the fixed sleeve to connect with the second elastic component. The positioning ring is sleeved on the rotating component and can rotate with the rotating component. Several positioning slots are distributed on the side of the positioning ring facing the fixed sleeve. The fixed sleeve has a receiving groove. The second compression spring and the ball are respectively installed in the receiving groove. The second compression spring can press the ball so that the ball can be partially inserted into the positioning slot.

[0017] In one embodiment, the cover also has a safety hole, and a safety plug is inserted into the safety hole. Beneficial effects

[0018] This utility model of a pressure-boosting steamer features a lid that is sealed tightly to the pot body. An elastic pressure unit presses the lid down. During heating, the steam pressure generated inside the pot is released through a pressure relief valve on the lid. When the steam pressure inside the pot exceeds the threshold of the pressure relief valve, the internal steam pressure overcomes the pressure exerted on the lid by the elastic pressure unit and the weight of the lid itself, thus opening the lid. Excess steam pressure is then released from around the lid, maintaining the internal steam pressure within a set range. This prevents excessive steam pressure from affecting the taste of the steamed food and maximizes nutrient retention. The elastic pressure unit also presses down on the lid, increasing the steaming speed and improving safety. After heating stops, the elastic pressure unit can be easily removed from the lid without waiting for the pressure relief valve to release pressure, allowing for quick opening and preventing overcooking. Attached Figure Description

[0019] Figure 1 is a structural schematic diagram of a first embodiment of the pressure-boosting steamer of this utility model;

[0020] Figure 2 is a schematic diagram of the open state of the pressure-boosting steamer of Embodiment 1 of this utility model;

[0021] Figure 3 is a cross-sectional view of Embodiment 1 of the pressure-boosting steamer of this utility model;

[0022] Figure 4 is a schematic diagram of the lid structure of the pressure-boosting steamer of this utility model in Embodiment 1;

[0023] Figure 5 is a schematic diagram of the limiting rod structure of Embodiment 1 of the pressure-boosting steamer of this utility model;

[0024] Figure 6 is a schematic diagram of the pressure relief valve structure of Embodiment 1 of the pressure-boosting steamer of this utility model;

[0025] Figure 7 is an enlarged view of point A in Figure 2 of Embodiment 1 of the pressure-boosting steamer of this utility model;

[0026] Figure 8 is a structural schematic diagram of Embodiment 2 of the pressure-boosting steamer of this utility model;

[0027] Figure 9 is a cross-sectional view of Embodiment 2 of the pressure-boosting steamer of this utility model;

[0028] Figure 10 is a structural schematic diagram of Embodiment 3 of the pressure-boosting steamer of this utility model;

[0029] Figure 11 is a cross-sectional view of Embodiment 3 of the pressure-boosting steamer of this utility model;

[0030] Figure 12 is an enlarged view of section B in Figure 10 of Embodiment 3 of the pressure-boosting steamer of this utility model;

[0031] Figure 13 is a schematic diagram of the positioning ring structure of Embodiment 3 of the pressure-boosting steamer of this utility model.

[0032] As shown in the attached diagram:

[0033] 100. Pot body;

[0034] 200. Cover; 210. Sealing gasket; 211. Inverted buckle; 220. Safety hole; 230. Safety rubber plug;

[0035] 300, Elastic pressure unit; 310, Handle; 311, First positioning groove; 312, Column; 313, Pressure component; 313a, Second positioning groove; 314, First elastic component; 315, Connecting rod; 320, Limiting rod; 321, Positioning component; 322, Limiting retaining ring; 330, Spring-loaded component; 340, Second elastic component; 350, Soft rubber component;

[0036] 400, Pressure relief valve; 410, Valve body; 411, Airflow resonance chamber; 412, Air inlet; 413, Air outlet; 420, First compression spring; 430, Top ball; 440, Adjusting screw; 450, Knob;

[0037] 500. Negative pressure elimination unit; 510. Connector; 511. Through hole; 520. Negative pressure elimination rod; 530. Negative pressure elimination spring; 540. Plug;

[0038] 600, Rotating unit; 610, Rotating component; 620, Fixed sleeve; 621, Receiving groove; 630, Positioning ring; 631, Positioning slot; 640, Second compression spring; 650, Ball bearing. Detailed Implementation

[0039] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0040] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1

[0042] Please refer to Figures 1 to 3. A pressure-boosting steamer includes a pot body 100, a lid 200, and an elastic pressure unit 300. The lid 200 is sealed to the pot body 100. The elastic pressure unit 300 is used to elastically pressurize the lid 200. A pressure relief valve 400 is provided on the lid 200. When the pot body 100 is heated, the steam pressure generated inside it is discharged by the pressure relief valve 400. When the generated steam pressure exceeds the threshold value discharged by the pressure relief valve 400, the steam pressure inside the pot body 100 is reduced. The force overcomes the pressure applied to the lid 200 by the elastic pressure unit 300 and the weight of the lid 200 itself, thereby opening the lid 200 to release excess steam pressure inside the pot 100 and maintain the steam pressure inside the pot 100 within the set range; and after stopping heating of the pot 100, there is no need to wait for the pressure relief valve 400 to release pressure, and the elastic pressure unit 300 can be easily operated to remove the elastic pressure on the lid 200, so that the lid 200 can be opened quickly to avoid overcooking of the food.

[0043] Specifically, in this embodiment, when using the pressure-boosting steamer, the food to be steamed is placed in the pot body 100, and an appropriate amount of water is poured into the pot body 100. The lid 200 is then placed on top of the pot body 100 to seal it. After the lid 200 is closed, the elastic pressure unit 300 applies elastic pressure to the lid 200. During continuous heating, the water in the pot body 100 evaporates, generating steam pressure within the pot body 100. This steam pressure is used to steam the food in the pot body 100, and excess steam pressure is released through the pressure relief valve 400 of the lid 200. However, as the steam pressure inside the pot body 100 increases and exceeds the threshold value released by the pressure relief valve 400, the steam pressure inside the pot body 100 overcomes the pressure exerted by the elastic pressure unit 300 on the lid. The pressure of the lid 200 and the weight of the lid 200 itself push the lid 200 open, and the excess steam pressure inside the pot 100 is released from the sides of the lid 200, so that the steam pressure inside the pot 100 is maintained within the set range. This avoids the steam pressure inside the pot 100 being too high, which would affect the taste of the steamed food and preserve the nutrients of the food to the greatest extent. The elastic pressure unit 300 presses the lid 200 to increase the pressure of the steamer, thereby increasing the speed of steaming the food and improving the safety of the pressure steamer. After heating the pot 100 is stopped, there is no need to wait for the pressure relief valve 400 to release the pressure. The elastic pressure unit 300 can be easily operated to remove the elastic pressure on the lid 200, so that the lid 200 can be opened quickly to avoid overcooking the food.

[0044] Please refer to Figures 2 and 5. In order to achieve the pressure-boosting effect on the steamer, the elastic pressure unit 300 in this embodiment includes a handle 310 and a limiting rod 320. The handle 310 is located in the middle of the cover 200. The limiting rod 320 is made of elastic material, and both ends of the limiting rod 320 are rotatably connected to the edge of the pot body 100. Limiting rings 322 are provided at the ends of the limiting rod 320. The limiting rod 320 can rotate to the top of the handle 310 to elastically limit the handle 310.

[0045] A handle 310 is provided in the middle of the lid 200, allowing for easy removal of the lid 200. The limiting rod 320 is made of an elastic material, such as elastic steel, but other elastic materials can also be used. Both ends of the limiting rod 320 are rotatably connected to the edge of the pot body 100. During this rotatable connection, a limiting ring 322 further limits the ends of the limiting rod 320, preventing it from detaching from the pot body 100 when lifted. This ensures the secure connection between the limiting rod 320 and the pot body 100, making the steamer safe and reliable. When the lid 200 is closed over the pot body 100, the limiting rod 320 rotates to the top of the handle 310, thus limiting the handle 310. When the steam pressure inside the pot body 100 exceeds the discharge threshold of the pressure relief valve 400, the steam pressure inside the pot body 100 will overcome the pressure applied to the handle 310 by the elastic limiting rod 320 and the weight of the lid 200 itself, thereby opening the lid 200 to release the excess steam pressure inside the pot body 100. This keeps the steam pressure inside the pot body 100 within the set range, thus preventing excessive steam pressure from affecting the taste of the steamed food. At the same time, the limiting rod 320 limits the top of the handle 310, causing the elastic limiting rod 320 to act on the handle 310, and then on the lid 200, to achieve elastic pressure increase on the lid 200. This allows the steamer to produce a pressure-boosting effect, thereby increasing the speed of steaming and cooking food and meeting the requirements for pressurized steaming of different foods.

[0046] In addition, to ensure that steam pressure can be generated inside the pot body 100, please refer to Figure 4. In this embodiment, a sealing gasket 210 is provided on the edge of the lid 200, and the sealing gasket 210 has an inverted buckle 211 that cooperates with the inner edge of the pot body 100. When the lid 200 is covering the pot body 100, the inverted buckle 211 of the sealing gasket 200 will fit against the inner edge of the pot body 100, thereby achieving a tight seal between the lid 200 and the pot body 100. When steam pressure is generated inside the pot body 100, the steam pressure will first act on the inverted buckle 211 of the sealing gasket 210, so that the inverted buckle 211 fits tightly against the inner edge of the pot body 100, thereby improving the sealing effect between the lid 200 and the pot body 100, and ensuring that the steam pressure inside the pot body 100 will not easily leak out.

[0047] Please refer to Figure 7. In order to facilitate the elimination of negative pressure in the pot body 100 and to facilitate the opening of the lid 200, the handle 310 in this embodiment is provided with a negative pressure elimination unit 500. The negative pressure elimination unit 500 includes a connector 510 and a negative pressure elimination rod 520. The bottom of the handle 310 is connected to the lid 200 through the connector 510, and a through hole 511 is provided in the middle of the connector 510. The negative pressure elimination rod 520 is movably inserted into the handle 310, and a negative pressure elimination spring 530 is provided between the upper end of the negative pressure elimination rod 520 and the top of the handle 310. A plug 540 is provided at the bottom end of the negative pressure elimination rod 520. When the limiting rod 320 elastically limits the handle 310, the top of the negative pressure elimination rod 520 can be limited and pressed so that the plug 540 seals the through hole 511.

[0048] The handle 310 and the lid 200 can be quickly assembled via the connector 510. When the steamer is in use, rotating the limiting rod 320 causes it to rotate to the top of the handle 310, whereby the limiting rod 320 elastically limits the top of the handle 310. Simultaneously, the limiting rod 320 also presses down on the top of the negative pressure eliminator rod 520, compressing the negative pressure eliminator spring 530. This causes the plug 540 at the bottom of the negative pressure eliminator rod 520 to seal the through hole 511 of the connector 510. After the food in the steamer has finished steaming, the lid 200 is adjusted again... The limiting rod 320 rotates, causing it to disengage from the handle 310 and the negative pressure eliminator 520. At this time, the negative pressure eliminator spring 530 recovers under its own elastic force and acts on the upper end of the negative pressure eliminator 520, pushing the negative pressure eliminator 520 upward. When the negative pressure eliminator 520 is pushed upward, the plug 540 at the bottom will disengage from the through hole 511 of the connector 510, opening the through hole 511 and allowing external airflow to circulate with the inside of the pot body 100, thereby eliminating the negative pressure inside the pot body 100 and allowing the lid 200 to be easily opened.

[0049] To facilitate positioning between the limiting rod 320 and the handle 310, in this embodiment, a first positioning groove 311 is provided at the top of the handle 310, and a positioning element 321 is provided in the middle of the limiting rod 320. When the lid 200 closes the pot body 100, the limiting rod 320 can be rotated to the top of the handle 310. At this time, the positioning element 321 in the middle of the limiting rod 320 will be placed in the first positioning groove 311 at the top of the handle 311 to achieve positioning between the limiting rod 320 and the handle 310. The limiting rod 320 has two members, each with a positioning element 321. When both positioning elements 321 are placed in the first positioning groove 311, the two positioning elements 321 will act on the top of the negative pressure eliminator 520. On both sides, the positioning element is designed to limit the pressure on the negative pressure relief rod 520. Simultaneously, this positioning element is made of silicone, possessing a certain degree of elasticity and capable of rotating on the limiting rod. The rotation of the positioning element 321 also facilitates the rotation of the elastic limiting rod 320 to the top of the handle 310, allowing the positioning element 321 to roll along the top of the handle 310 and into the first positioning groove 311. This makes the steamer easy and effortless to use. After steaming, the limiting rod 320 can be rotated again to disengage the positioning element 321 from the first positioning groove 311 of the handle 310, allowing the lid 200 to be opened for convenient use of the steamer. Furthermore, the limiting rod 320 can also serve as a handle for the pot body 100, facilitating the removal of the pot body 100.

[0050] Furthermore, referring to Figure 6, in order to properly release the steam pressure inside the pot body 100, the pressure relief valve 400 in this embodiment includes a valve body 410, a first compression spring 420, and a top ball 430. The bottom end of the valve body 410 is mounted on the cover 200, and the valve body 410 has an airflow resonance cavity 411. An air inlet 412 communicating with the airflow resonance cavity 411 is opened at the bottom end of the valve body 410, and an air outlet 413 communicating with the airflow resonance cavity 411 is opened on the side wall of the valve body 410. The first compression spring 420 and the top ball 430 are respectively disposed in the airflow resonance cavity 411, and the first compression spring 420 presses the top ball 430 at the air inlet 412, thereby blocking the air inlet 412 by the top ball 430.

[0051] When the steamer is continuously heated, steam pressure will gradually be generated inside the pot body 100. When the steam pressure reaches a certain level, it will push the top bead 430 at the air inlet 412 at the bottom of the valve body 410. The top bead 430 will then squeeze the first compression spring 420, thereby opening the air inlet 412 at the bottom of the valve body 410. At this time, the steam pressure inside the pot body 100 will flow along the air inlet 412 to the airflow resonance chamber 411 of the valve body 410, and then flow through the airflow resonance chamber 411 to the air outlet 413, and finally be discharged outward from the air outlet 413, thereby realizing the normal discharge of steam pressure inside the pot body 100.

[0052] Furthermore, since both the air inlet 412 and the air outlet 413 are inclined, an asymmetrical airflow channel is formed through the inclined air inlet 412 and the air outlet 413, which can generate a vortex and produce a whistle effect. When the steam pressure is discharged sequentially from the air inlet 412, the airflow resonance cavity 411 and the air outlet 413, a periodic vortex will be generated, thereby emitting a warning sound to remind the user.

[0053] However, since the steam pressure varies when cooking different ingredients, in this embodiment, an adjusting screw 440 is threadedly connected to the top of the valve body 410, and one end of the adjusting screw 440 is inserted into the airflow resonance cavity 411 and connected to the first compression spring 420, while the other end of the adjusting screw 440 is connected to a knob 450.

[0054] When different ingredients need to be steamed or boiled, the adjusting screw 440 can be turned by the knob 450. When the adjusting screw 440 is turned, it will drive the first compression spring 420 to compress or release, thereby adjusting the pressure of the first compression spring 420 on the top bead 430. By adjusting the preload of the first compression spring 420, the set steam pressure inside the pot 100 can be changed, thereby realizing the steaming or boiling of different ingredients. For example, if the steaming time of shrimp is short, the first compression spring 420 can be released by adjusting the screw 440 to reduce the steam pressure inside the pot 100; if the steaming time of chicken is slightly longer, the first compression spring 420 can be compressed by adjusting the screw 440 to increase the steam pressure inside the pot 100.

[0055] Please refer to Figure 4. In order to improve the safety of using the steamer, a safety hole 220 is provided on the lid 200 in this embodiment, and a safety plug 230 is inserted into the safety hole 220. When the steamer is in use, if the steam pressure in the pot body 100 exceeds the set safety pressure, the steam pressure will push open the safety plug 230 in the safety hole 220, and the steam pressure in the pot body 100 will be discharged outward through the safety hole 220, thereby ensuring the safety of using the steamer.

[0056] Finally, in this embodiment, by providing an elastic pressure unit 300 between the pot body 100 and the lid 200, the elastic pressure unit 300 elastically presses the lid 200, thereby achieving a pressure-boosting effect on the steamer. Furthermore, this elastic pressure-boosting structure can be used with any shape, model, and size of cookware available on the market; simply providing the elastic pressure unit 300 between the pot body 100 and the lid 200 is sufficient. Embodiment Two

[0057] Please refer to Figures 8 and 9. In this embodiment, the structure of the pressure steamer is basically the same as that in Embodiment 1. The difference is that the elastic pressure unit 300 includes a handle 310 and a limiting rod 320. The handle 310 is located in the middle of the cover 200. The two ends of the limiting rod 320 are rotatably connected to the edge of the pot body 100. The handle 310 includes a column 312, a pressure member 313 and a first elastic member 314. A connecting rod 315 is movably inserted through the upper end of the column 312. The top end of the connecting rod 315 is connected to the pressure member 313. The first elastic member 314 is sleeved on the connecting rod 315 and its two ends abut against the column 312 and the pressure member 313 respectively. The limiting rod 320 can rotate to the top of the pressure member 313 to elastically limit the pressure member 313.

[0058] The handle 310 includes a column 312 that serves as a handle for the lid 200, facilitating easy access to the lid 200. A connecting rod 315 passes through the top of the column 312 and is threadedly connected to the pressure member 313. The connecting rod 315 can be a long screw, with its head positioned on the column 312. A first elastic member 314, which can be a spring, is fitted onto the connecting rod 315, with both ends abutting against the column 312 and the pressure member 313 respectively. This creates an elastic connection between the pressure member 313 and the column 312. After the lid 200 closes the pot 100, the limiting rod 320 can rotate to limit the top of the pressure member 313. When the steam pressure inside the pot 100 exceeds the pressure relief valve 40... When the emission threshold of 0 is reached, the steam pressure inside the pot body 100 will overcome the pressure applied to the column 312 by the first elastic element 314 and the weight of the lid 200 itself, thereby opening the lid 200 to release excess steam pressure inside the pot body 100, so that the steam pressure inside the pot body 100 is maintained within the set range, thereby avoiding excessive steam pressure inside the pot body 100 from affecting the taste of the steamed food; at the same time, the top of the pressure element 313 is limited by the limiting rod 320, so that the elastic force of the first elastic element 314 acts on the column 312, and then on the lid 200, so as to achieve elastic pressure increase on the lid 200, so that the steamer can produce a pressure increase effect. By increasing the pressure of the steamer, the speed of food steaming can be increased, and the pressure steaming of different foods can be satisfied.

[0059] Similarly, to ensure that steam pressure can be generated inside the pot body 100, a sealing gasket 210 can be provided on the edge of the lid 200. The sealing gasket 210 has an inverted buckle 211 that matches the inner edge of the pot body 100. When the lid 200 closes the pot body 100, the inverted buckle 211 of the sealing gasket 200 will fit against the inner edge of the pot body 100, thereby achieving a tight seal between the lid 200 and the pot body 100. When steam pressure is generated inside the pot body 100, the steam pressure will first act on the inverted buckle 211 of the sealing gasket 210, so that the inverted buckle 211 fits tightly against the inner edge of the pot body 100, thereby improving the sealing effect between the lid 200 and the pot body 100, and ensuring that the steam pressure inside the pot body 100 will not easily leak out.

[0060] In addition, to facilitate the positioning between the limiting rod 320 and the pressure member 313, in this embodiment, a second positioning groove 313a is provided on the top of the pressure member 313, and a positioning member 321 is provided in the middle of the limiting rod 320. When the cover 200 closes the pot body 100, the limiting rod 320 can be rotated so that the positioning member 321 of the limiting rod 320 is placed in the second positioning groove 313a of the pressure member 313, thereby achieving the positioning of the limiting rod 320 so that the limiting rod 320 can better limit the pressure member 313. When the steamer has finished steaming, the limiting rod 320 can be rotated again so that the positioning member 321 of the limiting rod 320 is disengaged from the second positioning groove 313a of the pressure member 313, and the cover 200 can be opened, thereby facilitating the use of the steamer. The limiting rod 320 can also be used as a handle of the pot body 100 for easy handling of the pot body 100.

[0061] Please refer to Figure 6. Similarly, in order to properly release the steam pressure inside the pot body 100, the pressure relief valve 400 in this embodiment includes a valve body 410, a first compression spring 420, and a top ball 430. The bottom end of the valve body 410 is installed on the cover body 200, and the valve body 410 has an airflow resonance cavity 411. An air inlet 412 communicating with the airflow resonance cavity 411 is opened at the bottom end of the valve body 410, and an air outlet 413 communicating with the airflow resonance cavity 411 is opened on the side wall of the valve body 410. The first compression spring 420 and the top ball 430 are respectively disposed in the airflow resonance cavity 411, and the first compression spring 420 presses the top ball 430 at the air inlet 412, thereby blocking the air inlet 412 by the top ball 430.

[0062] When the steamer is continuously heated, steam pressure will gradually be generated inside the pot body 100. When the steam pressure reaches a certain level, it will push the top bead 430 at the air inlet 412 at the bottom of the valve body 410. The top bead 430 will then squeeze the first compression spring 420, thereby opening the air inlet 412 at the bottom of the valve body 410. At this time, the steam pressure inside the pot body 100 will flow along the air inlet 412 to the airflow resonance chamber 411 of the valve body 410, and then flow through the airflow resonance chamber 411 to the air outlet 413, and finally be discharged outward from the air outlet 413, thereby realizing the normal discharge of steam pressure inside the pot body 100.

[0063] Furthermore, since both the air inlet 412 and the air outlet 413 are inclined, an asymmetrical airflow channel is formed through the inclined air inlet 412 and the air outlet 413, which can generate a vortex and produce a whistle effect. When the steam pressure is discharged sequentially from the air inlet 412, the airflow resonance cavity 411 and the air outlet 413, a periodic vortex will be generated, thereby emitting a warning sound to remind the user.

[0064] However, since the steam pressure varies when cooking different ingredients, in this embodiment, an adjusting screw 440 is threadedly connected to the top of the valve body 410, and one end of the adjusting screw 440 is inserted into the airflow resonance cavity 411 and connected to the first compression spring 420, while the other end of the adjusting screw 440 is connected to a knob 450.

[0065] When different ingredients need to be steamed or boiled, the adjusting screw 440 can be turned by knob 450. When the adjusting screw 440 is turned, it will drive the first compression spring 420 to compress or release, thereby adjusting the pressure of the first compression spring 420 on the top bead 430. By adjusting the preload of the first compression spring 420, the set steam pressure inside the pot 100 can be changed, thereby realizing the steaming or boiling of different ingredients. For example, shrimp has a short steaming time, the first compression spring 420 can be released by adjusting screw 440 to reduce the steam pressure inside the pot 100; if chicken has a slightly longer steaming time, the first compression spring 420 can be compressed by adjusting screw 440 to increase the steam pressure inside the pot 100. Example 3

[0066] Please refer to Figures 10 and 11. In this embodiment, the structure of the pressure steamer is basically the same as that in Embodiment 1. The difference is that: there are two sets of elastic pressure units 300, and the two sets of elastic pressure units 300 are arranged opposite to each other on the two sides of the pot body 100. Each elastic pressure unit 300 includes a spring-loaded member 330 and a second elastic member 340. The bottom end of the second elastic member 340 is connected to the edge of the pot body 100, and the spring-loaded member 330 is connected to the top end of the second elastic member 340. One end of the spring-loaded member 330 is bent downward to elastically limit the lid 200. Soft rubber parts 350 are provided on the outer side of the spring-loaded member 330 and the second elastic member 340, and inside the second elastic member 340.

[0067] Similarly, in this embodiment, when using the pressure-boosting steamer, the food to be steamed is placed in the pot body 100, and an appropriate amount of water is poured into the pot body 100. Then, the lid 200 is sealed and closed onto the pot body 100. After the lid 200 is closed onto the pot body 100, the elastic pressure units 300 on both sides of the pot body 100 will simultaneously apply elastic pressure to both sides of the lid 200. Specifically, when the lid 200 is sealed and closed onto the pot body 100, under the elastic force of the second elastic member 340, the inclined end of the spring-loaded member 330 can be driven to apply elastic pressure to the lid 200. When the steam pressure inside the pot body 100 is greater than the discharge threshold of the pressure relief valve 400, the steam pressure inside the pot body 100 will overcome the pressure applied to the lid 200 by the spring-loaded member 330 and the weight of the lid 200 itself, thereby pushing the lid 200 into the steam. The lid is opened to release excess steam pressure inside the pot 100, maintaining the internal steam pressure within a set range. This prevents excessive steam pressure from affecting the texture of the steamed food and maximizes the preservation of its nutrients. Simultaneously, the second elastic element 340 drives the inclined end of the pressure element 330 to act on the lid 200, achieving elastic pressure boosting. This pressure boosting increases the steaming speed and improves the safety of the pressure steamer. After heating the pot 100 stops, the pressure relief valve 400 can be used to release pressure, allowing the elastic pressure unit 300 to remove the pressure on the lid 200 quickly and preventing overcooking.

[0068] Furthermore, in order to protect the elastic pressure unit 300 and increase its elastic force, in this embodiment, soft rubber parts 350 are provided on the outer side of the spring-loaded member 330 and the second elastic member 340, and inside the second elastic member 340. The soft rubber parts 350 on the outer side can protect the second elastic member 340 and the spring-loaded member 330, and allow the spring-loaded member 330 to press better against the cover 200. The soft rubber parts 350 inside the second elastic member 340 can increase the elasticity of the second elastic member 340, so as to better improve the elastic force on the spring-loaded member 330 and ensure the pressure-boosting effect on the cover 200.

[0069] Finally, referring to Figures 12 and 13, to facilitate the elastic pressure unit 300 in applying elastic pressure to the lid 200 and to facilitate opening the lid 200, a rotating unit 600 is provided between the elastic pressure unit 300 and the pot body 100 in this embodiment. This rotating unit 600 includes a rotating component 610, a fixing sleeve 620, a positioning ring 630, a second compression spring 640, and a ball bearing 650. The fixing sleeve 620 is installed on the pot body 100, and the rotating component 610 rotatably passes through the bottom of the pot body 100 and through the fixing sleeve 620. The second elastic element 340 is connected, and the positioning ring 630 is sleeved on the rotating element 610 and can rotate with the rotating element 610. Several positioning slots 631 are distributed on the side of the positioning ring 630 facing the fixed sleeve 610. The positioning slots 631 are distributed at 0°, 90° and 180°. The fixed sleeve 620 is provided with a receiving groove 621. The second compression spring 640 and the ball 650 are respectively installed in the receiving groove 621. The second compression spring 640 can press the ball 650 so that part of the ball 650 can be inserted into the positioning slot 631.

[0070] When using the pressure steamer, the elastic pressure units 300 on both sides of the pot body 100 are in the open state (0°). After the lid 200 closes to the pot body 100, the elastic pressure units 300 on both sides can be rotated by the rotating unit 600, thereby causing the elastic pressure units 300 on both sides to elastically press the lid 200. Specifically, since the rotating part 610 is connected to the bottom end of the second elastic part 340, when the elastic pressure unit 300 is rotated, the rotating part 610 will also rotate, and the positioning ring 630 sleeved on the rotating part 610 will rotate accordingly. When the elastic pressure unit 300 rotates to the set position (180°) and elastically presses the lid 200, the receiving groove of the fixed sleeve 620... The second compression spring 640 inside 621 will drive the ball 650 to partially engage in the positioning slot 631 (180°) corresponding to the positioning ring 630, thereby positioning the elastic pressure unit 300. When it is necessary to open the lid 200, the elastic pressure unit 300 can be rotated again to rotate 90° or 180°. The rotating part 610 will then rotate the positioning ring 630 again, so that the ball 650 partially engages in the positioning slot 631 (90° or 0°) corresponding to the positioning ring 630, thereby repositioning the elastic pressure unit 300. At this time, it is convenient to open the lid 200 and the pot body 100. Ultimately, this makes the pressure steamer more practical and its overall structural design more reasonable.

[0071] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description; however, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model; furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A pressure-boosting steamer, characterized in that: The device includes a pot body, a lid, and an elastic pressure unit. The lid is sealed to the pot body, and the elastic pressure unit is used to elastically pressurize the lid. A pressure relief valve is provided on the lid. When the pot body is heated, the steam pressure generated inside is released by the pressure relief valve. When the generated steam pressure exceeds the threshold of the pressure relief valve, the steam pressure inside the pot body will overcome the pressure applied to the lid by the elastic pressure unit and the weight of the lid itself, thereby opening the lid to release the excess steam pressure inside the pot body from all sides of the lid, so that the steam pressure inside the pot body is maintained within the set range.

2. The pressure-boosting steamer according to claim 1, characterized in that: The elastic pressure unit includes a handle and a limiting rod. The handle is located in the middle of the lid. The limiting rod is made of elastic material, and both ends of the limiting rod are rotatably connected to the edge of the pot body. Limiting rings are provided at the ends of the limiting rod. The limiting rod can rotate to the top of the handle to elastically limit the handle.

3. The pressure-boosting steamer according to claim 1, characterized in that: The elastic pressure unit includes a handle and a limiting rod. The handle is located in the middle of the lid, and the two ends of the limiting rod are rotatably connected to the edge of the pot body. The handle includes a column, a pressure member, and a first elastic member. A connecting rod is movably inserted through the upper end of the column, and the top end of the connecting rod is connected to the pressure member. The first elastic member is sleeved on the connecting rod, and its two ends abut against the column and the pressure member, respectively. The limiting rod can rotate to the top of the pressure member to elastically limit the pressure member.

4. The pressure-boosting steamer according to claim 1, characterized in that: The elastic pressure unit is provided in two sets, and the two sets of elastic pressure units are arranged opposite to each other on the two sides of the pot body. The elastic pressure unit includes a spring-loaded component and a second elastic component. The bottom end of the second elastic component is connected to the edge of the pot body, and the spring-loaded component is connected to the top end of the second elastic component. One end of the spring-loaded component is bent downward to elastically limit the lid. Soft rubber components are provided on the outer side of the spring-loaded component and the second elastic component, as well as inside the second elastic component.

5. The pressure-boosting steamer according to claim 2, characterized in that: The handle is equipped with a negative pressure elimination unit, which includes a connector and a negative pressure elimination rod. The bottom of the handle is connected to the cover through the connector, and a through hole is opened in the middle of the connector. The negative pressure elimination rod is movably inserted into the handle, and a negative pressure elimination spring is set between the upper end of the negative pressure elimination rod and the top of the handle. A plug is set at the bottom end of the negative pressure elimination rod. When the limiting rod elastically limits the handle, the top of the negative pressure elimination rod can be limited and pressed to make the plug seal the through hole.

6. The pressure-boosting steamer according to claim 2, characterized in that: The top of the handle is provided with a first positioning groove, and the middle of the limiting rod is provided with a positioning element. When the limiting rod rotates to the top of the handle for limiting, the positioning element will be placed in the first positioning groove to position the limiting rod.

7. The pressure-boosting steamer according to claim 3, characterized in that: The pressure component has a second positioning groove at its top and a positioning element in the middle of the limiting rod. When the limiting rod rotates to the top of the pressure component for limiting, the positioning element will be placed in the second positioning groove to position the limiting rod.

8. The pressure-boosting steamer according to any one of claims 2 to 4, characterized in that: The edge of the lid is provided with a sealing gasket, and the sealing gasket has an inverted buckle that mates with the inner edge of the pot.

9. The pressure-boosting steamer according to any one of claims 2 to 4, characterized in that: The pressure relief valve includes a valve body, a first compression spring, and a top ball. The bottom end of the valve body is mounted on the cover, and the valve body has an airflow resonance cavity. An air inlet communicating with the airflow resonance cavity is opened at the bottom end of the valve body, and an air outlet communicating with the airflow resonance cavity is opened on the side wall of the valve body. The first compression spring and the top ball are respectively set in the airflow resonance cavity, and the first compression spring presses the top ball against the air inlet, thereby blocking the air inlet. Both the air inlet and the air outlet are inclined to generate a whistling effect.

10. The pressure-boosting steamer according to claim 9, characterized in that: The valve body is threaded to an adjusting screw at its top end. One end of the adjusting screw passes through the airflow resonance cavity and connects to the first compression spring. The other end of the adjusting screw is connected to a knob. The adjusting screw can be turned by the knob to adjust the pressure of the first compression spring on the top ball.

11. The pressure-boosting steamer according to claim 10, characterized in that: A rotating unit is also provided between the elastic pressure unit and the pot body. The rotating unit includes a rotating component, a fixed sleeve, a positioning ring, a second compression spring, and a ball. The fixed sleeve is installed on the pot body. The rotating component can rotatably pass through the bottom of the pot body and through the fixed sleeve to connect with the second elastic component. The positioning ring is sleeved on the rotating component and can rotate with the rotating component. Several positioning slots are distributed on the side of the positioning ring facing the fixed sleeve. The fixed sleeve has a receiving groove. The second compression spring and the ball are respectively installed in the receiving groove. The second compression spring can press the ball so that the ball can be partially inserted into the positioning slot.

12. The pressure-boosting steamer according to any one of claims 2 to 4, characterized in that: The cover is also provided with a safety hole, and a safety plug is inserted into the safety hole.

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