A pressure cooker with a button self-locking structure

Abstract

This utility model discloses a pressure cooker with a button-operated self-locking structure, relating to the field of kitchenware technology. It includes a lid and a body, with the lid mounted on the body. The lid has a main handle, and the body has a lower handle. The main handle and the lower handle are correspondingly positioned. A pressure relief plate is slidably mounted inside the main handle, sliding vertically towards and away from the lid. The pressure relief plate has a pressure relief hole on the side near the lid, comprising a working hole and an exhaust hole that communicate with each other. The device employs a button, a pressure relief plate, a drive plate, and a locking rod, resulting in a simple structure that is not only easy to operate and low in cost but also safe and reliable, facilitating large-scale promotion. The valve for exhaust can be directly opened via the button, ensuring safety by allowing exhaust to occur before the lid is opened.

Description

Technical Field

[0001] This utility model relates to the field of kitchenware technology, specifically to a pressure cooker with a button self-locking structure. Background Technology

[0002] Nowadays, there are many different styles of pressure cookers on the market, and the opening and closing methods of various pressure cookers are varied and diverse. In particular, there are many types of pressure cookers. As consumers become more aware of the need for innovation and their pursuit of new products continues to increase, various types of pressure cookers have emerged to facilitate people's purchase.

[0003] Among the many types of pressure cookers, opening and closing the lid is relatively complicated, requiring manual activation of the vent button, which is quite inconvenient. Sometimes users may forget to activate the vent button, which could lead to danger. Utility Model Content

[0004] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a pressure cooker with a button self-locking structure, which solves the problem of inconvenient opening and closing of existing pressure cookers.

[0005] Technical solution

[0006] To solve the above problems, the technical solution provided by this utility model is as follows:

[0007] A pressure cooker with a button-operated self-locking structure includes a lid and a body. The lid is mounted on the body, and a main handle is provided on the lid. A lower handle is provided on the body, and the main handle and the lower handle are correspondingly arranged. A pressure relief plate is slidably disposed inside the main handle. The pressure relief plate slides vertically in a direction away from and towards the lid. The pressure relief plate has a pressure relief hole on the side near the lid. The pressure relief hole includes a working hole and a vent hole that are interconnected. The inner diameter of the working hole is larger than that of the vent hole, and the working hole faces the side near the lid. The lid is provided with a pressure limiting valve and a safety valve, and the safety valve corresponds to the pressure relief hole.

[0008] Furthermore, the pressure relief plate has a pressure relief surface on the side facing the pot lid, the pressure relief surface is an inclined surface, and the pressure relief surface is inclined upward on the side away from the pot lid.

[0009] Furthermore, the end wall of the exhaust port protrudes downward from the working hole.

[0010] Furthermore, the safety valve is provided with an abutment rod, and the abutment rod is provided with a flange.

[0011] Furthermore, a button is slidably provided on the main handle, and the button is perpendicular to the pressure relief plate.

[0012] Furthermore, a drive disc is provided between the button and the pressure relief plate, and a locking rod is provided inside the main handle, with the drive disc rotating around the locking rod.

[0013] Furthermore, the button is provided with an oblique groove, which slopes downward from the side away from the pressure relief plate to the side closer to the pressure relief plate.

[0014] Furthermore, the locking rod is provided with a pivot pin, which is inserted into the inclined groove.

[0015] Furthermore, the lower handle is provided with a pressure-boosting groove, and the end of the pressure-boosting groove is provided with a locking position.

[0016] Furthermore, the lower handle is provided with a locking rod groove on the outside of the pressure boosting groove, and the locking rod groove is provided with a corresponding locking rod hole.

[0017] Beneficial effects

[0018] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0019] This utility model employs a device that combines a button, a pressure relief plate, a drive disc, and a locking rod. Its structure is simple, easy to operate, low in cost, safe and reliable, and easy to scale up. The valve for venting can be opened directly by pressing the button, and venting has already been carried out before the pot lid is opened, ensuring safety. Attached Figure Description

[0020] Figure 1 This is an exploded view of the structure of Embodiment 1 of this utility model;

[0021] Figure 2 This is a schematic diagram of the main handle of Embodiment 1 of this utility model;

[0022] Figure 3 This is a schematic diagram of the button structure in Embodiment 1 of this utility model.

[0023] Figure 4 This is a cross-sectional view of the button structure in Embodiment 1 of this utility model.

[0024] Figure 5 This is a schematic diagram of the pressure relief plate structure in Embodiment 1 of this utility model;

[0025] Figure 6 This is a schematic diagram of the drive disk structure of Embodiment 1 of this utility model.

[0026] Figure 7 This is a schematic diagram of the locking rod structure of Embodiment 1 of this utility model;

[0027] Figure 8 This is a schematic diagram of the lower handle structure of Embodiment 1 of this utility model.

[0028] 1. Pot lid; 11. Main handle; 12. Pressure relief plate; 13. Matching rod; 14. Pressure relief hole; 141. Working hole; 142. Vent hole; 15. Pressure relief surface;

[0029] 2. Pot body; 21. Lower handle; 22. Pressure boosting groove; 23. Locking position; 24. Pressure limiting valve; 25. Safety valve;

[0030] 3. Buttons; 31. Angled grooves;

[0031] 4. Drive disc; 41. Drive pin; 42. Drive pin;

[0032] 5. Locking rod; 51. Shaft pin; 52. Locking rod groove; 53. Locking rod hole; Detailed Implementation

[0033] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Example 1

[0035] Combined with appendix Figure 1-8 A pressure cooker with a button-operated self-locking structure includes a lid 1 and a pot body 2. The lid 1 is screwed onto the pot body 2, and the lid 1 and pot body 2 are threaded together to fix the lid 1 onto the pot body 2. The lid 1 has at least two main handles 11 symmetrically arranged around its center point. The pot body 2 has at least two lower handles 21 symmetrically arranged around its center point. The number and position of the main handles 11 and lower handles 21 correspond, and the main handles 11 and lower handles 21 interlock to install the lid 1 onto the pot body 2. When there are multiple main handles 11 and lower handles 21, they are respectively arranged around the center points of the lid 1 and the pot body 2. The lid 1 has a sealing groove, and a sealing ring is installed in the sealing groove. The sealing ring is used to reduce the gap between the lid 1 and the pot body 2 during installation, prevent gas leakage, and facilitate the formation of a high-pressure environment inside the pot body 2.

[0036] The lid 1 and the pot body 2 are assembled together by the cooperation between the main handle 11 and the lower handle 21 on the pot body 2. The main handle 11 has a cavity for installing components. A pressure relief plate 12 is slidably installed in the main handle 11. The sliding direction of the pressure relief plate 12 is perpendicular to the direction away from and towards the lid 1. The pressure relief plate 12 has a pressure relief hole 14 on the side of the pressure relief plate 12 near the lid 1. The pressure relief hole 14 consists of two holes arranged in sequence. The two holes of the pressure relief hole 14 have different inner diameters and are interconnected. The hole on the side of the pressure relief hole 14 near the lid 1 has a larger inner diameter and is called the working hole 141. The hole on the side away from the lid 1 has a smaller inner diameter and is called the vent hole 142.

[0037] The pot lid 1 is equipped with a pressure limiting valve 24 and a safety valve 25 connected to the inside of the pot lid 1. The pressure limiting valve 24 is equipped with an exhaust pipe. The exhaust pipe passes through the pressure limiting valve 24 to release the gas inside the pot body 2. When the pressure limiting valve 24 moves upward, the exhaust pipe can release gas. When the pressure limiting valve 24 does not move upward, the pressure limiting valve 24 blocks the exhaust pipe. At this time, the gas inside the pot body 2 cannot be released, and the pressure inside the pot body 2 can continue to rise.

[0038] The exhaust pipe has a channel running through it. The pressure relief valve 24 is located at the top of the exhaust pipe and is elastically connected to the top of the exhaust pipe. Preferably, a spring is installed between the pressure relief valve 24 and the exhaust pipe. The pressure relief valve 24 abuts against the exhaust pipe through the elastic element. The pressure relief valve 24 has a blocking block at the corresponding position of the exhaust pipe. The blocking block abuts against the opening at the end of the channel of the exhaust pipe, preventing exhaust from the exhaust pipe. When the pressure relief valve 24 is pushed up by an external force, the thrust overcomes the elastic force of the elastic element, and the blocking block in the pressure relief valve 24 no longer blocks the opening of the exhaust pipe channel. At this time, exhaust can be discharged from the channel in the exhaust pipe.

[0039] The working hole 141 and the vent hole 142 of the pressure relief hole 14 are connected, and the end walls of the working hole 141 and the vent hole 142 are connected. The end wall of the vent hole 142 protrudes downward from the working hole 141 relative to the working hole 141, and the end walls of the working hole 141 and the vent hole 142 have a linear transition. The safety valve 25 is provided with an abutment rod that controls the venting of the safety valve 25. The abutment rod cooperates with the pressure relief hole 14. By cooperating with the pressure relief hole 14 of different inner diameters, the abutment rod is controlled to rise and fall, thereby realizing the venting of the safety valve 25. The safety valve 25 is normally open during cooking. During the cooking process, the safety valve 25 can vent according to the pressure inside the pot body 2, thereby dynamically maintaining the pressure inside the pot body 2 within a safe range and preventing the pressure inside the pot body 2 from becoming too high during cooking, which could lead to accidents.

[0040] The abutment rod is equipped with a flange, which mates with the end walls of the working hole 141 and the vent hole 142. The end walls of the working hole 141 and the vent hole 142 can block the flange of the abutment rod, thereby preventing the abutment rod from rising. The end wall of the working hole 141 can confine the flange of the abutment rod within the working hole 141. At this time, the safety valve 25 can vent normally. However, since the end wall of the vent hole 142 protrudes downward from the working hole 141, and the inner diameter of the vent hole 142 is smaller than that of the working hole 141, when the working hole 141 abuts with the flange of the abutment rod, the flange of the abutment rod will descend due to the end wall of the vent hole 142, and at the same time drive the abutment rod to descend. At this time, the abutment rod drives the safety valve 25 to descend. The descent of the safety valve 25 indicates that the pot lid 1 is in the venting state.

[0041] The safety valve 25 is slidably mounted inside the pot lid 1. A vent is located on the side of the safety valve 25. When the safety valve 25 slides downwards and sinks into the pot lid 1, the inner wall of the pot lid 1 blocks the vent on the side of the safety valve 25, preventing it from venting. When the safety valve 25 is pushed up by the gas pressure inside the pot body 2, the vent on the side of the safety valve 25 is located on the upper side of the pot lid 1, allowing the safety valve 25 to vent normally. Therefore, when the abutment rod is located in the working hole 141 of the pressure relief hole 14, the safety valve 25 can rise normally. When the abutment rod is located in the vent hole 142 of the pressure relief hole 14, the safety valve 25 is pressed into the pot lid 1, at which point the vent on the side of the safety valve 25 is blocked and cannot vent.

[0042] The pressure relief plate 12 has a pressure relief surface 15 on the side facing the pot lid 1. The pressure relief surface 15 is inclined and tilts upward on the side away from the pressure limiting valve 24. As the pressure relief plate 12 moves towards the pot lid 1, the pressure relief surface 15 pushes up the pressure limiting valve 24, causing the pressure limiting valve 24 to start venting. At the same time as the pressure limiting valve 24 starts venting, the abutment rod moves from the working hole 141 to the exhaust hole 142 under the movement of the pressure relief plate 12. At this time, the safety valve 25 is adjusted from the normally open state to the closed state, and all the gas in the pot body 2 is discharged from the pressure limiting valve 24.

[0043] The main handle 11 is also provided with a button 3, which slides inside the main handle 11. The sliding direction of the button 3 is perpendicular to the sliding direction of the pressure relief plate 12. A drive disc 4 is provided between the button 3 and the pressure relief plate 12. A locking rod 5 is provided inside the button 3. The drive disc 4 is rotatably mounted on the locking rod 5. A drive pin 41 is provided on the side of the drive disc 4 away from the pressure relief plate 12. A driving pin 42 is provided on the side of the drive disc 4 close to the pressure relief plate 12. A round hole is provided on the drive disc 4 between the drive pin 41 and the driving pin 42. The drive disc 4 is sleeved on the locking rod 5 through the round hole.

[0044] The main handle 11 is fixedly provided with a locking sleeve that fits into the locking rod 5. The locking sleeve is provided with an inner protrusion. The locking rod 5 is provided with a mating groove corresponding to the inner protrusion. The inner protrusion is inserted into the mating groove, so that the locking rod 5 can only move up and down within the main handle 11 without rotating. The mating rod 13 has a certain elasticity and can undergo a certain deformation.

[0045] The pressure relief plate 12 and the button 3 are limited by the shape of the end wall of the cavity of the main handle 11, so that the pressure relief plate 12 and the button 3 can slide inside the main handle.

[0046] A drive hole is provided on the side of button 3 away from pressure relief plate 12. Drive pin 41 is inserted into drive hole. A drive hole is provided on the end of pressure relief plate 12 away from pot lid 1. Drive pin 42 is inserted into drive hole. There is a gap perpendicular to the direction of pressure relief plate 12 between drive hole and drive pin 41 and drive pin 42 respectively. The gap between drive hole and drive hole and drive pin 41 and drive pin 42 can offset the displacement of drive pin 41 and drive pin 42 perpendicular to the direction of pressure relief plate 12 when swinging, and prevent drive pin 41 and drive pin 42 from getting stuck when swinging.

[0047] When button 3 moves toward pressure relief plate 12 via drive disk 4, button 3 will drive pressure relief plate 12 toward pot lid 1 via drive disk 4. At this time, pressure relief plate 12 moves toward pot lid 1, thereby pushing pressure relief valve 24 to rise. At the same time, working hole 141 in pressure relief hole 14 on pressure relief plate 12 switches to exhaust hole 142.

[0048] The button 3 has an inclined groove 31. The inclined groove 31 is an sloping groove, with the side of the inclined groove 31 facing the pressure relief plate 12 being the lower side. The inclined groove 31 slopes from the upper side away from the pressure relief plate 12 to the lower side closer to the pressure relief plate 12. The locking lever 5 has a pin 51, which is inserted into the inclined groove 31. The button 3 moves the inclined groove 31, and the engagement between the inclined groove 31 and the pin 51 causes the locking lever 5 to rise or fall.

[0049] Because the engagement of the pivot pin 51 and the inclined groove 31 can drive the button 3 to move toward or away from the pressure relief plate 12, the locking rod 5 rises and, through the engagement of the pivot pin 51 and the inclined groove 31, causes the button 3 to move toward the pressure relief plate 12. The locking rod 5 falls and, through the engagement of the pivot pin 51 and the inclined groove 31, causes the button 3 to move away from the pressure relief plate 12. The movement of the button 3 toward the pressure relief plate 12 causes the pressure relief plate 12 to move toward the pot lid 1. The movement of the button 3 away from the pressure relief plate 12 causes the pressure relief plate 12 to move away from the pot lid 1.

[0050] The lower handle 21 has a pressure-raising groove 22 near the pot lid 1. A locking position 23 is located at the inner end of the pressure-raising groove 22. A downward-extending mating rod 13 is located at the bottom of the pressure relief plate 12. An auxiliary shaft extends downward from the bottom of the mating rod 13. The auxiliary shaft slides within the pressure-raising groove 22. When the auxiliary shaft is engaged in the locking position 23, the locking position 23 prevents accidental movement of the auxiliary shaft. A locking rod groove 52 is located on the outer side of the pressure-raising groove 22. The locking rod groove 52 has an upward-sloping arc design. The locking rod 5 slides within the locking rod groove 52, thereby moving the locking rod 5 up and down. A corresponding locking rod hole 53 is located on the inner side of the locking rod groove 52. After moving along the locking rod groove 52, the locking rod 5 is inserted into the locking rod hole 53.

[0051] The inclined angle of the inclined groove 31 is relatively large. Compared with the movement of the pressure relief plate 12 driven by the button 3 to control the switching of the pressure relief hole 14, the movement of the button 3 driven by the cooperation of the inclined groove 31 and the shaft pin 51 is negligible. Moreover, the elasticity of the cooperating rod 13 can offset the displacement difference between the pressure relief plate 12 and the auxiliary shaft located in the locking position 23 when the pressure relief plate 12 moves towards the pot lid 1 when the inclined groove 31 drives the locking rod 5 to rise.

[0052] A reset spring is provided between button 3 and mating rod 13. The reset spring also pushes the pressure relief plate 12 to move, assisting button 3 in opening the cover, reducing the force required to press button 3, and making it easier to open the cover.

[0053] When installing the pot body 2 and the pot lid 1, rotate the pot lid 1 relative to the pot body 2. The auxiliary shaft moves in the pressure-raising groove 22, and the locking rod 5 moves in the locking rod groove 52 and gradually rises according to the shape of the locking rod groove 52. At the same time, the auxiliary shaft moves in the pressure-raising groove 22 into the locking position 23. When the locking rod 5 moves to the upper side of the locking rod hole 53 through the rotation of the pot lid 1, pull out the button 3. The locking rod 5 descends under the action of the inclined groove 31 of the button 3 and the locking rod 5 is inserted into the locking rod groove 52. At this time, the pot body 2 and the pot lid 1 are locked. The working hole 141 of the pressure relief hole 14 on the pressure relief plate 12 corresponds to the safety valve 25, and the safety valve 25 can release air normally.

[0054] When cooking begins, the safety valve 25 keeps the pressure inside the pot 2 in a dynamic equilibrium state. After the pressure cooker stops heating and cools down naturally, open the lid 1 and push the button 3 towards the pressure relief plate 12. The pressure relief plate 12 moves towards the pressure limiting plate under the drive of the drive plate 4. The pressure relief surface 15 of the pressure relief plate 12 pushes the pressure limiting valve 24 upward, releasing the last bit of pressure inside the pot and avoiding potential hazards caused by misoperation, thus achieving the pressure relief process.

[0055] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pressure cooker with a button-operated self-locking structure, characterized in that, The device includes a lid and a body. The lid is mounted on the body and has a main handle. The body has a lower handle, and the main handle and lower handle are correspondingly positioned. A pressure relief plate is slidably mounted inside the main handle. The pressure relief plate slides vertically in directions away from and towards the lid. The pressure relief plate has a pressure relief hole on the side near the lid. The pressure relief hole includes a working hole and a vent hole that are interconnected. The inner diameter of the working hole is larger than that of the vent hole, and the working hole faces towards the side near the lid. The lid has a pressure limiting valve and a safety valve, and the safety valve corresponds to the pressure relief hole.

2. The pressure cooker with a button-operated self-locking structure according to claim 1, characterized in that, The pressure relief plate has a pressure relief surface on the side facing the pot lid. The pressure relief surface is inclined and tilts upwards on the side away from the pot lid.

3. A pressure cooker with a button-operated self-locking structure according to claim 1, characterized in that, The end wall of the vent hole protrudes downward from the working hole.

4. A pressure cooker with a button-operated self-locking structure according to claim 3, characterized in that, The safety valve is provided with an abutment rod, and the abutment rod is provided with a flange.

5. A pressure cooker with a button-operated self-locking structure according to claim 1, characterized in that, A button is also slidably mounted on the main handle, and the button is perpendicular to the pressure relief plate.

6. A pressure cooker with a button-operated self-locking structure according to claim 1, characterized in that, A drive disc is provided between the button and the pressure relief plate, and a locking rod is provided inside the main handle. The drive disc rotates around the locking rod.

7. A pressure cooker with a button-operated self-locking structure according to claim 6, characterized in that, The button has an oblique groove, which slopes downward from the side away from the pressure relief plate to the side closer to the pressure relief plate.

8. A pressure cooker with a button-operated self-locking structure according to claim 7, characterized in that, The locking rod is provided with a pivot pin, which is inserted into the inclined groove.

9. A pressure cooker with a button-operated self-locking structure according to claim 1, characterized in that, The lower handle is provided with a pressure-boosting groove, and the end of the pressure-boosting groove is provided with a locking position.

10. A pressure cooker with a button-operated self-locking structure according to claim 9, characterized in that, The lower handle has a locking rod groove on the outside of the pressure boosting groove, and the locking rod groove has a corresponding locking rod hole.

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