Quick pressure relief type pressure cooker

Abstract

The utility model discloses a quick pressure relief type pressure cooker, which comprises a cooker body, a cooker cover and a pressure relief device, the cooker body is vertically arranged, the cooker cover is detachably arranged above the cooker body, the cooker cover comprises a cover body and a handle, the cover body is provided with a plurality of pressure relief holes, the pressure relief device is arranged below the cover body, and the cooker body is isolated from the inside of the cover body by the pressure relief device; the pressure relief device comprises a baffle horizontally fixed to the cover body, a rack and a plurality of gears, the baffle isolates the cover body from the pot body and is provided with a plurality of air holes, the rack is horizontally arranged at the upper end of the baffle and is coaxial with the handle, teeth are arranged on the two sides of the rack, the gears are arranged on the two sides of the rack respectively, the gears are meshed with the rack, and the rack slides to drive all the gears to rotate. Air passing holes penetrating through the gear in the circumferential direction are formed in the gear and matched with the baffle air holes; the sliding rack drives the gear to rotate to enable the air passing hole to be aligned with the vent hole, high-pressure steam in the pot body can be rapidly released to the outside through the vent hole, the air passing hole and the pressure relief hole which are communicated in a large area, rapid pressure relief is achieved, and pressure relief efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure cooker technology, specifically a rapid pressure relief pressure cooker. Background Technology

[0002] In the utility model patent application with publication number CN221511578U, publication date August 13, 2024, entitled "An Electric Pressure Cooker with Rapid Pressure Relief," this utility model discloses an electric pressure cooker with rapid pressure relief, belonging to the technical field of electric pressure cookers. The key technical points are: an electric pressure cooker with rapid pressure relief includes an electric pressure cooker lid, the lower end of which is rotatably connected to the electric pressure cooker body; a pressure relief component is provided in the middle of the electric pressure cooker lid; and a sealing component is provided on the left side of the electric pressure cooker lid; the pressure relief component includes... The electric pressure cooker includes a mounting plate. A mounting plate is fixedly connected to the middle of the left end of the upper lid. A first mounting block is provided at the upper end of the mounting plate. A first spring is fixedly connected to the upper end of the first mounting block. A pressure relief cap is fixedly connected to the upper end of the first spring. The pressure relief cap is inserted into the middle of the upper end of the electric pressure cooker lid. An air vent is provided at the upper end of the electric pressure cooker lid to cooperate with the pressure relief cap. A second spring is fixedly connected to the lower end of the first mounting block. The lower end of the second spring is fixedly connected to the upper end of the mounting plate. A connecting plate is fixedly connected between each pair of adjacent sets of the first mounting blocks. The advantages are as follows: By setting up a pressure relief component, when the food in the electric pressure cooker is cooked and the lid needs to be opened, pressing down on the third mounting block causes the second mounting block to move, resulting in multiple sets of first mounting blocks sliding down simultaneously. The first mounting blocks then drive the first spring, causing the pressure relief cap to detach from the vent, allowing gas to escape through the vent and achieving a rapid pressure relief effect. When a person is standing nearby preparing to relieve pressure, the pressure relief pipe can be turned to the side away from the person, making it safer than traditional pressure relief methods. When pressure relief is not needed, the third mounting block can be rotated to be perpendicular to the horizontal plane to prevent it from interfering with the use of the electric pressure cooker. The operation is simple and convenient.

[0003] In the aforementioned patents or prior art, pressure cookers significantly shorten cooking time by increasing internal pressure to raise the boiling point. However, traditional pressure cookers require a long waiting period for natural pressure release and cooling after cooking before the lid can be safely opened. This process is time-consuming, reduces efficiency, and fails to meet the demands of a fast-paced modern lifestyle. Although some methods exist on the market that allow for forced pressure release by manually operating the exhaust valve to shorten the waiting time, such operations often require continuous force from the user, and the high-temperature steam is concentrated and rapidly ejected during the pressure release process, posing a safety hazard of scalding the user. Both the ease of operation and safety are unsatisfactory. Utility Model Content

[0004] The purpose of this invention is to provide a pressure cooker with rapid pressure relief to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid pressure relief pressure cooker, comprising: a pot body, a pot lid, and a pressure relief device;

[0006] The pot body is set vertically, and a pot lid is detachably installed on the top of the pot body. The pot lid includes a lid body and a handle. Multiple pressure relief holes are set on the lid body, and a pressure relief device is set at the bottom of the lid body. The pressure relief device isolates the pot body from the inside of the lid body. The pressure relief device achieves rapid pressure relief by venting the high-temperature steam inside the pot body over a large area.

[0007] The pressure relief device includes a baffle, gears, and a rack. The baffle is horizontally positioned and fixedly connected to the lid, isolating the lid from the interior of the pot. A horizontal rack is positioned at the upper end of the baffle, coaxially with the handle. Teeth are provided on both sides of the rack, and multiple gears are provided on both sides of the rack. The gears on both sides of the rack mesh with the rack, so that when the rack slides, it drives all the gears to rotate. The gears have vent holes that pass through the gears in the circumferential direction. The baffle has multiple vent holes that pass through the baffle and match the vent holes, allowing the high-pressure steam inside the pot to be released to the outside through the large-area interconnected vent holes, vent holes, and pressure relief holes on the lid, achieving rapid pressure relief.

[0008] Furthermore, each gear has multiple vertical anti-blocking blocks circumferentially embedded at its lower end. Each anti-blocking block is alternately arranged with an air vent, and the anti-blocking block can be inserted into the air vent and seal the air vent.

[0009] Furthermore, the anti-clogging block includes: a plug, a third spring, and an embedded shell. The embedded shell is vertically embedded in the lower end of the gear, and the other end of the embedded shell is connected to the plug. The plug is a hemisphere. The embedded shell has a coaxial groove inside, and a coaxial third spring is installed inside the groove. The other end of the third spring abuts against the plug. The plug can slide inside the embedded shell, and the size of the plug matches the vent hole.

[0010] Furthermore, a vertical pressure relief valve is provided at the upper end of the lid, and an air passage pipe is provided at the lower end of the pressure relief valve. One end of the air passage pipe is connected to the pressure relief valve, and the other end of the air passage pipe passes through the baffle and is connected to the inside of the pot body. A screen is fixedly connected to the other end of the air passage pipe.

[0011] Furthermore, the end of the rack away from the handle is provided with a groove along its own long axis. The size of the groove matches the air passage, and the groove allows the air passage to slide smoothly without affecting the rack.

[0012] Furthermore, a lever is fixedly connected to one end of the rack near the handle. The lever is located inside the handle and its upper end extends vertically through the handle. A horizontal lever groove is provided inside the handle, allowing the lever to slide within the lever groove. A first spring is provided between the lever and the bottom wall of the lever groove.

[0013] Furthermore, fixing holes are provided on both side walls of the lever groove, and vertical receiving grooves are provided on both sides of the lever handle near the bottom. A second spring is provided inside the receiving groove, and an end is fixedly connected to the other end of the second spring. The size of the end matches the fixing hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are: this rapid pressure relief pressure cooker is reasonable and has the following advantages:

[0015] (1) This technical solution achieves portable and efficient pressure relief operation and large-area synchronous pressure relief through a unique rack-gear linkage mechanism and lever design. The user only needs to horizontally pull the lever inside the handle once to overcome the resistance of the first spring and lock its end into the fixing hole to drive the rack to move linearly. The teeth on both sides of the rack synchronously drive the gear meshing with it to rotate at a specific angle, so that the vent hole in the circumference of the gear is precisely aligned with the vent hole on the baffle. At this time, the high-pressure steam in the pot can be quickly and massively released to the outside through the vent hole, vent hole and pressure relief hole on the cover, significantly shortening the pressure relief waiting time. This design transforms a single operation into multi-channel synchronous opening, which is fast and simple and labor-saving, greatly improving the efficiency and convenience of use.

[0016] (2) The technical solution integrates the self-cleaning anti-clogging function into the gear structure, which effectively solves the problem of easy clogging of traditional pressure relief holes and ensures air tightness. Multiple anti-clogging blocks are embedded in the lower end of each gear. Under normal conditions, the hemispherical plug is subjected to the force of the third spring and is completely embedded in the vent hole of the baffle. This not only achieves reliable sealing of the pressure relief channel and prevents gas leakage during cooking, but also makes the hemispherical surface more conducive to clearing impurities. When the gear rotates during the pressure relief operation, the plug is removed from the vent hole along with the gear. If there are food residues or other blockages in the vent hole, the plug can be removed during the removal process or the elasticity of the third spring can cause the plug to make a slight movement to pop out the blockage. After the pressure relief is completed, the lever is released. Under the action of the first spring, the rack resets and drives the gear to rotate. The plug is re-embedded precisely in the vent hole to complete the seal. At the same time, this embedding action can also further remove any remaining blockages, thereby continuously ensuring the smooth flow of the vent hole and the reliability of the opening and closing of the air passage.

[0017] (3) This technical solution provides multiple safety protection mechanisms to ensure that the pressure relief process is controllable and the operation is safe and reliable. First, the independently set pressure relief valve is directly connected to the inside of the pot body through the vent pipe. Its lower end screen can filter large particles of impurities, forming an independent pressure relief channel, which provides stable pressure relief under normal conditions. Second, the operation design of the lever has clear locking and unlocking states. When operating, the lever needs to be pulled to the fixed hole position by overcoming the first spring force. At this time, the second spring in the receiving groove pushes the end to pop out and lock into the fixed hole to achieve reliable locking, preventing accidental disengagement during the pressure relief process and causing the channel to close. After the pressure relief is completed, just lightly push the lever to make the end disengage from the fixed hole. Under the action of the first spring, the lever will automatically reset, and the pressure relief channel will close. This locking mechanism prevents misoperation, ensures that the pressure relief process is completed and sealed in time at the end. At the same time, the vent, vent and pressure relief hole are located below the cover and the steam is finally discharged from the upper surface of the cover. With the isolation effect of the baffle, the steam flow is effectively guided, reducing the risk of direct injection of high temperature steam and injury. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the pot lid and pressure relief device in this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the pressure relief device of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the baffle in this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the gear in this utility model;

[0023] Figure 6 This is an explosion diagram of the anti-blocking block in this utility model;

[0024] Figure 7 This is an exploded view of the rack and lever in this utility model;

[0025] Figure 8 This is a cross-sectional structural diagram of the rack, lever, and handle in this utility model.

[0026] Figure 9 This is a three-dimensional structural diagram of the pressure relief valve, air passage pipe, and screen in this utility model;

[0027] In the diagram: 1. Pot body; 2. Pot lid; 21. Lid body; 211. Pressure relief hole; 22. Handle; 221. First spring; 222. Fixing hole; 223. Actuating groove; 3. Pressure relief device; 31. Baffle; 311. Vent hole; 32. Gear; 321. Air passage hole; 33. Rack; 34. Actuating handle; 341. Receiving groove; 342. Second spring; 343. End; 35. Anti-blocking block; 351. Plug; 352. Third spring; 353. Embedded shell; 4. Pressure relief valve; 5. Air passage pipe; 6. Screen. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-9 The present invention provides a technical solution as follows:

[0030] Example 1:

[0031] In this embodiment, a rapid pressure relief pressure cooker is provided, including: a pot body 1, a pot lid 2, and a pressure relief device 3;

[0032] The pot body 1 is vertically arranged, and the pot lid 2 is detachably arranged on the top of the pot body 1. The pot lid 2 includes a lid body 21 and a handle 22. Multiple pressure relief holes 211 are arranged vertically through the lid body 21. A pressure relief device 3 is arranged below the lid body 21. The pressure relief device 3 isolates the pot body 1 from the inside of the lid body 21. The pressure relief device 3 achieves rapid pressure relief by venting the high-temperature steam inside the pot body 1 over a large area.

[0033] The pressure relief device 3 includes a baffle 31, a gear 32, and a rack 33. The baffle 31 is horizontally arranged and fixedly connected to the cover 21. The baffle 31 isolates the cover 21 from the interior of the pot body 1. A horizontal rack 33 is provided at the upper end of the baffle 31. The rack 33 is coaxially arranged with the handle 22. Teeth are provided on both sides of the rack 33. Multiple gears 32 are provided on both sides of the rack 33. The gears 32 on both sides of the rack 33 mesh with the rack 33, so that when the rack 33 slides, it drives all the gears 32 to rotate. The gears 32 are provided with vent holes 321 that pass through the gears 32 in the circumferential direction. The baffle 31 is provided with multiple vent holes 311 that pass through the baffle 31. The vent holes 311 and the vent holes 321 are matched so that the high-pressure steam inside the pot body 1 can be released to the outside through the large-area interconnected vent holes 311, vent holes 321, and pressure relief holes 211 on the cover 21, thereby achieving rapid pressure relief.

[0034] Each gear 32 has multiple vertical anti-blocking blocks 35 circumferentially embedded at its lower end. Each anti-blocking block 35 is alternately arranged with the vent hole 321. The anti-blocking block 35 can be inserted into the vent hole 311 and seal the vent hole 311.

[0035] The anti-clogging block 35 includes: a plug 351, a third spring 352, and an embedded shell 353. The embedded shell 353 is vertically embedded in the lower end of the gear 32. The other end of the embedded shell 353 is connected to the plug 351. The plug 351 is a hemisphere. The embedded shell 353 has a coaxial groove inside. The third spring 352 is installed inside the groove. The other end of the third spring 352 abuts against the plug 351. The plug 351 can slide inside the embedded shell 353. The size of the plug 351 matches the vent hole 311.

[0036] A vertical pressure relief valve 4 is provided at the upper end of the cover 21. An air passage pipe 5 is provided at the lower end of the pressure relief valve 4. One end of the air passage pipe 5 is connected to the pressure relief valve 4, and the other end of the air passage pipe 5 passes through the baffle 31 and is connected to the inside of the pot body 1. A screen 6 is fixedly connected to the other end of the air passage pipe 5.

[0037] The end of the rack 33 away from the handle 22 is provided with a groove along its own long axis. The size of the groove matches the air pipe 5. The groove allows the air pipe 5 to slide smoothly without affecting the rack 33.

[0038] A lever 34 is fixedly connected to one end of the rack 33 near the handle 22. The lever 34 is located inside the handle 22 and its upper end extends vertically through the handle 22. A horizontal lever groove 223 is provided inside the handle 22. The lever 34 can slide inside the lever groove 223. A first spring 221 is provided between the lever 34 and the bottom wall of the lever groove 223.

[0039] Fixing holes 222 are provided on both side walls of the lever groove 223. Vertical receiving grooves 341 are provided on both sides of the lever handle 34 near the bottom. A second spring 342 is provided inside the receiving groove 341. The other end of the second spring 342 is fixedly connected to an end head 343. The size of the end head 343 matches the fixing hole 222.

[0040] Working principle: First, when the pressure cooker needs to release pressure after cooking, the user moves the lever 34 located inside the handle 22 of the lid horizontally outward. This operation overcomes the resistance of the first spring 221, causing the lever 34 to slide in the lever groove 223 of the handle 22. At the same time, it drives the rack 33, which is fixedly connected to it, to move linearly away from the handle 22. When the lever 34 moves to the fixing hole 222, the second spring 342 in the receiving groove 341 of the lever 34 pushes the end 343 out and into the fixing hole 222 on the side wall of the lever groove 223, locking the lever 34 and the rack 33 in this position to ensure that the pressure release process is stable.

[0041] Secondly, the linear movement of the rack 33 drives all the meshing gears 32 to rotate synchronously by a specific angle through the teeth on both sides of the rack 33. The rotation of the gears 32 causes the circumferentially arranged air passage 321 to be completely aligned and connected with the corresponding air vent 311 on the baffle 31. At the same time, the anti-blocking block 35 hemispherical plug 351, which was originally embedded in the air vent 311 under the action of the third spring 352 and played a sealing role, is moved out of the air vent 311 as the gears 32 rotate. The high-pressure steam accumulated in the pot 1 is instantly released into the external environment at high speed and in large quantities through the large-area interconnected air vent 311, the air passage 321 inside the gears 32, and the pressure relief hole 211 on the cover 21. In addition, the independently set pressure relief valve 4 and its lower screen 6 always provide another pressure relief path. This linkage design realizes multi-channel large-area synchronous rapid pressure relief, which significantly shortens the waiting time.

[0042] Finally, once the pressure inside the pot has dropped to a safe level, the user gently moves the lever 34 so that its end 343 disengages from the fixing hole 222. Under the restoring force of the first spring 221, the lever 34 drives the rack 33 to automatically return to its initial position. The reset movement of the rack 33 then drives all the gears 32 to rotate in the opposite direction back to their original positions. During this rotation, the anti-blocking block 35 circumferentially set at the lower end of the gear 32, under the action of the third spring 352, has its hemispherical plug 351 precisely re-embedded into the vent hole 311 of the baffle 31, sealing the channel tightly to prevent air leakage during subsequent cooking. At the same time, if the plug 351 encounters a blockage during the embedding process, its hemispherical design, combined with the elasticity of the third spring 352, can effectively push out or remove the blockage, keeping the vent hole 311 unobstructed and ensuring the effectiveness and reliability of the next pressure relief operation.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rapid pressure relief pressure cooker, characterized in that, include: The pot body (1), the pot lid (2), and the pressure relief device (3); The pot body (1) is vertically arranged, and the pot lid (2) is detachably arranged on the top of the pot body (1). The pot lid (2) includes a lid body (21) and a handle (22). The lid body (21) is provided with a plurality of pressure relief holes (211) that penetrate the lid body (21) vertically. The pressure relief device (3) is arranged below the lid body (21). The pressure relief device (3) isolates the pot body (1) from the inside of the lid body (21). The pressure relief device (3) achieves rapid pressure relief by venting the high-temperature steam inside the pot body (1) over a large area. The pressure relief device (3) includes: a baffle (31), gears (32) and a rack (33). The baffle (31) is horizontally arranged and fixedly connected to the cover (21). The baffle (31) isolates the cover (21) from the interior of the pot body (1). A horizontal rack (33) is provided at the upper end of the baffle (31). The rack (33) is coaxially arranged with the handle (22). Teeth are provided on both sides of the rack (33). Multiple gears (32) are provided on both sides of the rack (33). The gears (32) on both sides of the rack (33) are all connected to the rack (33). When the rack (33) slides, it drives all the gears (32) to rotate. The gears (32) are provided with vent holes (321) that pass through the gears (32) in the circumferential direction. The baffle (31) is provided with multiple vent holes (311) that pass through the baffle (31). The vent holes (311) and the vent holes (321) are matched so that the high-pressure steam inside the pot body (1) can be released to the outside through the vent holes (311), the vent holes (321) and the pressure relief holes (211) on the cover (21) to achieve rapid pressure relief.

2. The rapid pressure relief pressure cooker according to claim 1, characterized in that, Each gear (32) has a plurality of vertical anti-blocking blocks (35) circumferentially embedded at its lower end. Each anti-blocking block (35) is alternately arranged with the vent (321). The anti-blocking block (35) can be inserted into the vent (311) and seal the vent (311).

3. A rapid pressure relief pressure cooker according to claim 2, characterized in that, The anti-clogging block (35) includes: a plug (351), a third spring (352), and an embedded shell (353). The embedded shell (353) is vertically embedded in the lower end of the gear (32). The other end of the embedded shell (353) is connected to the plug (351). The plug (351) is a hemisphere. The embedded shell (353) has a coaxial groove inside. The third spring (352) is coaxial inside the groove. The other end of the third spring (352) abuts against the plug (351). The plug (351) can slide inside the embedded shell (353). The size of the plug (351) matches the vent hole (311).

4. A rapid pressure relief pressure cooker according to claim 1, characterized in that, The upper end of the cover (21) is provided with a vertical pressure relief valve (4), and the lower end of the pressure relief valve (4) is provided with an air passage (5). One end of the air passage (5) is connected to the pressure relief valve (4), and the other end of the air passage (5) passes through the baffle (31) and is connected to the inside of the pot body (1). The other end of the air passage (5) is fixedly connected to a screen (6).

5. A rapid pressure relief pressure cooker according to claim 4, characterized in that, The rack (33) has a groove along its own long axis at the end away from the handle (22). The size of the groove matches the air passage (5). The groove allows the air passage (5) to slide smoothly without affecting the rack (33).

6. A rapid pressure relief pressure cooker according to claim 5, characterized in that, A lever (34) is fixedly connected to one end of the rack (33) near the handle (22). The lever (34) is located inside the handle (22) and its upper end vertically penetrates the handle (22). A horizontal lever groove (223) is provided inside the handle (22). The lever (34) can slide inside the lever groove (223). A first spring (221) is provided between the lever (34) and the bottom wall of the lever groove (223).

7. A rapid pressure relief pressure cooker according to claim 6, characterized in that, Fixing holes (222) are provided on both side walls of the lever groove (223). Vertical receiving grooves (341) are provided on both sides of the lever handle (34) near the bottom. A second spring (342) is provided inside the receiving groove (341). An end head (343) is fixedly connected to the other end of the second spring (342). The size of the end head (343) matches the fixing hole (222).

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