Quick pressure release valve and pressure cooker

Abstract

The utility model discloses a quick pressure release valve and a pressure cooker, and relates to the technical field of cookers. The quick pressure release valve comprises a valve seat, a valve element, a floater and an exhaust key, the valve element and the valve seat are connected to form a valve cavity, a first exhaust hole is formed in the valve seat, a second exhaust hole is formed in the valve element, the first exhaust hole and the second exhaust hole are both communicated with the valve cavity, the floater is arranged in the valve cavity in an up-down moving mode to open and close the second exhaust hole, and a guide column is arranged on the floater. The guide column penetrates through the second exhaust hole and is connected with the exhaust key. The valve seat and the valve element are connected to form the valve cavity, the floater moves up and down in the valve cavity, the floater is supported through the top wall and the bottom wall of the valve cavity, the floater is prevented from falling off, the requirement for the size of the floater is lowered, the floater with the small size can be arranged in the valve cavity, and the size of an exhaust channel in the quick pressure relief valve can be increased; the exhaust speed of the pressure cooker can be increased, when the exhaust key is pressed down, the floater moves downwards, and high-pressure gas in the cooker can be rapidly exhausted.

Description

Technical Field

[0001] This utility model relates to the field of cookware technology, and in particular to a quick pressure relief valve and a pressure cooker. Background Technology

[0002] The steel lid is equipped with a vent valve for pressure relief in the pressure cooker. The vent valve consists of a valve seat, a float, and a float sealing ring. The vent valve is connected to the inner pot of the cooker. When heating begins, the pressure in the cavity formed by the inner pot and the steel lid rises continuously. The float rises with the overflowing gas until the float sealing ring on the float contacts the vent hole of the valve seat, forming a closed cavity. When venting is needed, pressing the vent button on the top of the float moves the float downwards, allowing the high-pressure gas in the cavity to escape. However, in order to support the float and prevent it from accidentally detaching from the valve seat, the existing valve seat can only make the float size similar to the size of the vent hole of the valve seat. This results in a very small air gap between the float and the wall of the vent hole, leading to a small venting speed and volume of high-pressure gas, and thus a slow pressure relief rate in the pressure cooker. Utility Model Content

[0003] The purpose of this invention is to provide a fast pressure relief valve and a pressure cooker to solve the technical problem in the prior art where the small gap between the float and the vent hole results in a small discharge speed and volume of high-pressure gas, leading to a slow pressure relief speed in the pressure cooker.

[0004] This utility model provides a quick pressure relief valve, including a valve seat, a valve core, a float, and an exhaust button. The valve core is connected to the valve seat to form a valve cavity. The valve seat has a first exhaust hole, and the valve core has a second exhaust hole. Both the first exhaust hole and the second exhaust hole are in communication with the valve cavity. The float is moved up and down in the valve cavity to open and close the second exhaust hole. The float has a guide post, which passes through the second exhaust hole and is connected to the exhaust button.

[0005] As described above, in the quick-release valve, the float includes a movable connection portion and a stop portion, the stop portion is arranged around the movable connection portion, the guide post is arranged on the top wall of the movable connection portion, and the movable connection portion and the stop portion are arranged in the valve cavity.

[0006] As described above, the quick-release valve includes a blocking part body, a first direction section disposed at the upper end of the blocking part body, and a second direction section disposed at the lower end of the blocking part body. The first direction section and the second direction section protrude from the upper and lower end walls of the movable connecting part, respectively. The first direction section is provided with at least one first venting notch, and the second direction section is provided with at least one second venting notch.

[0007] As described above, the quick-release valve has multiple second venting gaps, which are circumferentially spaced on the sidewall of the second section to form a serrated structure at the end of the second section; it also has multiple first venting gaps, which are circumferentially spaced on the sidewall of the first section to form a serrated structure at the end of the first section, with each first venting gap corresponding to one second venting gap.

[0008] In the quick-release valve described above, the distance between the outer peripheral wall of the abutment and the side wall of the valve cavity is greater than or equal to 0.4 mm.

[0009] As described above, in the quick-release valve, the distance between the outer wall of the guide post and the wall of the second exhaust port is greater than or equal to 0.5 mm.

[0010] As described above, in the quick-release valve, the bottom wall of the valve core is provided with an annular boss that extends into the valve cavity and is used to abut against the float, and the annular boss is arranged around the second vent hole.

[0011] As described above, in the quick-release valve, a clearance groove is formed between the outer wall of the annular boss and the side wall of the valve cavity, and the clearance groove is used to avoid the first directional section.

[0012] As described above, the quick-release valve further includes a sealing gasket, and a sealing mounting portion is formed between the first section and the guide post. The sealing gasket is embedded in the sealing mounting portion and is used to form a sealing connection with the annular boss.

[0013] This utility model also provides a pressure cooker, including the quick pressure relief valve as described above.

[0014] Implementing the embodiments of this utility model will have the following beneficial effects:

[0015] In this invention, the quick-release valve includes a valve seat, a valve core, a float, and an exhaust button. The valve core is connected to the valve seat to form a valve cavity. The valve seat has a first exhaust hole, and the valve core has a second exhaust hole. Both the first and second exhaust holes communicate with the valve cavity. The float moves up and down within the valve cavity to open and close the second exhaust hole. The float has a guide post that passes through the second exhaust hole and connects to the exhaust button. The valve seat and valve core are connected to form the valve cavity. The float moves up and down within the valve cavity, supported by the top and bottom walls of the valve cavity to prevent it from falling out. This reduces the size requirements for the float, allowing for a smaller float to be placed within the valve cavity. It also increases the size of the exhaust channel within the quick-release valve, which is beneficial for increasing the exhaust speed of the pressure cooker. When the exhaust button is pressed, the float moves downward within the valve cavity, allowing the high-pressure gas inside the pressure cooker to be quickly released. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a quick-release valve according to an exemplary embodiment;

[0018] Figure 2 This is a cross-sectional view of a quick-release valve according to an exemplary embodiment;

[0019] Figure 3 This is an exploded view of the structure of a quick-release valve according to an exemplary embodiment;

[0020] Figure 4 This is a schematic diagram of the structure of a float according to an exemplary embodiment.

[0021] The components are as follows: 1. Valve seat; 11. Valve cavity; 111. Clearance groove; 12. First vent hole; 2. Valve core; 21. Second vent hole; 22. Annular boss; 23. Connecting block; 3. Float; 31. Guide post; 32. Movable connecting part; 33. Abutting part; 331. First directional section; 332. Second directional section; 333. First venting notch; 334. Second venting notch; 34. Sealing mounting part; 4. Sealing gasket; 5. Venting button; 6. First sealing ring; 7. Second sealing ring. Detailed Implementation

[0022] 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.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] 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.

[0027] See Figures 1-4This utility model provides a quick pressure relief valve, including a valve seat 1, a valve core 2, a float 3, and an exhaust button 5. The valve core 2 is connected to the valve seat 1 to form a valve cavity 11. The valve seat 1 is provided with a first exhaust hole 12, and the valve core 2 is provided with a second exhaust hole 21. Both the first exhaust hole 12 and the second exhaust hole 21 are connected to the valve cavity 11. The float 3 is moved up and down in the valve cavity 11 to open and close the second exhaust hole 21. The float 3 is provided with a guide post 31, which passes through the second exhaust hole 21 and is connected to the exhaust button 5. The valve seat 1 and valve core 2 are connected to form a valve cavity 11. The float 3 moves up and down in the valve cavity 11. The float 3 is supported by the top and bottom walls of the valve cavity 11 to prevent the float 3 from falling out, reduce the size requirements of the float 3, and allow a smaller float 3 to be placed in the valve cavity 11. This increases the size of the exhaust channel in the quick pressure relief valve, which is beneficial to improving the exhaust speed of the pressure cooker. When the exhaust button 5 is pressed, the float 3 moves downward in the valve cavity 11, and the high-pressure gas in the pressure cooker can be quickly discharged.

[0028] Specifically, the second vent 21 is a stepped hole that is wider at the top and narrower at the bottom. The wider part at the top of the second vent 21 can be used to accommodate the vent button 5. When the pressure cooker is under low pressure, the vent button 5 is hidden inside the second vent 21; when the pressure cooker is under high pressure, the vent button 5 is exposed outside the second vent 21, making it convenient for the user to observe and judge the pressure status inside the pressure cooker.

[0029] Furthermore, the float 3 includes a movable connecting part 32 and a blocking part 33. The blocking part 33 is arranged around the movable connecting part 32, and the guide post 31 is disposed on the top wall of the movable connecting part 32. The movable connecting part 32 and the blocking part 33 are disposed in the valve cavity 11. Gas inside the pressure cooker impacts the float 3, causing the float 3 to move upward. When the float 3 moves to the highest position, the top wall of the movable connecting part 32 abuts against the bottom wall of the valve core 2 to seal the second vent 21, thereby achieving a tight seal in the pressure cooker. It should be noted that the contact between the movable connecting part 32 and the valve core 2 is indirect. A sealing gasket 4 is provided on the top wall of the movable connecting part 32, which abuts against the bottom wall of the valve core 2 to ensure a sealing effect.

[0030] Furthermore, the blocking part 33 includes a blocking part body, a first direction segment 331 disposed at the upper end of the blocking part body, and a second direction segment 332 disposed at the lower end of the blocking part body. The first direction segment 331 and the second direction segment 332 protrude from the upper and lower end walls of the movable connecting part 32, respectively. The first direction segment 331 is provided with at least one first air passage notch 333, and the second direction segment 332 is provided with at least one second air passage notch 334.

[0031] Furthermore, there are multiple second venting gaps 334, which are circumferentially spaced on the sidewall of the second section 332 to form a serrated structure at the end of the second section 332; there are also multiple first venting gaps 333, which are circumferentially spaced on the sidewall of the first section 331 to form a serrated structure at the end of the first section 331, and each first venting gap 333 and a second venting gap 334 are correspondingly provided.

[0032] Furthermore, the distance between the outer peripheral wall of the abutment 33 and the side wall of the valve cavity 11 is greater than or equal to 0.4 mm. In the prior art, when the float 3 is installed on the valve seat 1, the distance between the vent hole on the valve seat 1 and the float 3 is about 0.25 mm, which makes the vent on the float 3 easily blocked, affecting the gas discharge speed and exhaust volume in the pressure cooker; while in this case, the distance between the outer peripheral wall of the abutment 33 and the side wall of the valve cavity 11 is greater than or equal to 0.4 mm, which increases the gas passage gap, facilitates gas discharge, and reduces the probability of blockage.

[0033] Furthermore, the distance between the outer wall of the guide post 31 and the wall of the second exhaust hole 21 is greater than or equal to 0.5 mm, ensuring that the gas can be smoothly discharged from the second exhaust hole 21 and avoiding blockage of the second exhaust hole 21.

[0034] Furthermore, the bottom wall of the valve core 2 is provided with an annular boss 22 extending into the valve cavity 11 and used to abut against the float 3. The annular boss 22 is arranged around the second vent hole 21. The annular boss 22 is used in conjunction with the float 3 to not only seal the vent valve, but also increase the venting speed when the pressure cooker needs to vent, so that the gas in the pressure cooker can pass smoothly through the gap between the float 3 and the float valve 3.

[0035] Furthermore, a clearance groove 111 is formed between the outer wall of the annular boss 22 and the side wall of the valve cavity 11. The clearance groove 111 is used to avoid the first directional section 331. When the float 3 rises, the first directional section 331 can extend into the clearance groove 111, preventing the first directional section 331 from directly contacting the valve core 2 and sealing the second exhaust port 21, thus affecting the discharge of gas in the valve cavity 11.

[0036] Furthermore, the quick-release valve also includes a sealing washer 4. A sealing mounting portion 34 is formed between the first section 331 and the guide post 31. The sealing washer 4 is embedded in the sealing mounting portion 34 and is used to form a sealing connection with the annular boss 22. Specifically, the sealing washer 4 is interference-fitted into the sealing mounting portion 34 to fix the sealing washer 4. After the float 3 rises, it abuts against the bottom wall of the annular boss 22 through the sealing washer 4, which can ensure the sealing between the float 3 and the annular boss 22 and ensure the sealing effect of the pressure cooker.

[0037] Specifically, the valve core 2 includes a valve core body and a connecting block 23 disposed on the peripheral wall of the valve core body. The valve seat 1 has an inner cavity with a top opening. The valve core body extends into the inner cavity and forms the valve cavity 11 with the valve seat 1. The connecting block 23 is sealed to the top wall of the valve seat 1. The second vent 21 and the annular boss 22 are both disposed on the valve core body. A first sealing ring 6 is provided at the connection between the connecting block 23 and the valve seat 1. The connecting block 23 and the valve seat 1 are connected by riveting or threading to achieve a sealed and fixed connection between the valve seat 1 and the valve core 2.

[0038] Specifically, the valve seat 1 includes a valve seat body and a column disposed at the bottom of the valve seat body. The inner cavity is disposed in the valve seat body, and the second vent 21 is disposed in the column. A sealing mounting groove is provided on the bottom wall of the valve seat body. The sealing mounting groove is arranged around the column, and a second sealing ring 7 is installed on the sealing mounting groove. When the valve seat 1 is fixedly connected to the pot lid, the second sealing ring 7 can ensure the sealing of the connection between the two and prevent gas in the pot from leaking out from the connection between the valve seat 1 and the pot lid.

[0039] This utility model also provides a pressure cooker, including the rapid pressure relief valve as described above. Specifically, the pressure cooker includes an inner pot and a lid. The lid covers the inner pot and forms a sealed cooking chamber with the inner pot. The valve seat 1 is installed on the lid by riveting or fastening with nuts. The first vent 12 communicates with the cooking chamber. When the pressure cooker needs to release pressure, the high-pressure airflow inside the pot passes through the first vent 12, enters the air passage gap between the baffle 33 and the inner wall of the valve chamber 11 through the second air passage notch 334, flows out through the first air passage notch 333, and finally exits from the second vent 21, thus achieving rapid pressure relief.

[0040] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit the scope of protection of the utility model.

Claims

1. A quick-release valve, characterized in that, The valve includes a valve seat (1), a valve core (2), a float (3), and an exhaust button (5). The valve core (2) is connected to the valve seat (1) to form a valve cavity (11). The valve seat (1) is provided with a first exhaust hole (12), and the valve core (2) is provided with a second exhaust hole (21). Both the first exhaust hole (12) and the second exhaust hole (21) are connected to the valve cavity (11). The float (3) is moved up and down in the valve cavity (11) to open and close the second exhaust hole (21). The float (3) is provided with a guide post (31), which passes through the second exhaust hole (21) and is connected to the exhaust button (5).

2. The quick-release valve according to claim 1, characterized in that, The float (3) includes a movable connecting part (32) and a blocking part (33), the blocking part (33) is arranged around the movable connecting part (32), the guide post (31) is arranged on the top wall of the movable connecting part (32), and the movable connecting part (32) and the blocking part (33) are arranged in the valve cavity (11).

3. The quick-release valve according to claim 2, characterized in that, The blocking part (33) includes a blocking part body, a first section (331) disposed at the upper end of the blocking part body, and a second section (332) disposed at the lower end of the blocking part body. The first section (331) and the second section (332) protrude from the upper and lower end walls of the movable connecting part (32), respectively. The first section (331) is provided with at least one first air passage notch (333), and the second section (332) is provided with at least one second air passage notch (334).

4. The quick-release valve according to claim 3, characterized in that, The second venting gap (334) is provided in multiples, and the multiple second venting gaps (334) are arranged circumferentially at intervals on the side wall of the second section (332) so that the end of the second section (332) forms a sawtooth structure; the first venting gap (333) is also provided in multiples, and the multiple first venting gaps (333) are arranged circumferentially at intervals on the side wall of the first section (331) so that the end of the first section (331) forms a sawtooth structure, and each first venting gap (333) and a second venting gap (334) are provided correspondingly.

5. The quick-release valve according to claim 4, characterized in that, The distance between the outer peripheral wall of the blocking part (33) and the side wall of the valve cavity (11) is greater than or equal to 0.4 mm.

6. The quick-release valve according to any one of claims 1-5, characterized in that, The distance between the outer wall of the guide post (31) and the wall of the second exhaust hole (21) is greater than or equal to 0.5 mm.

7. The quick-release valve according to claim 3, characterized in that, The bottom wall of the valve core (2) is provided with an annular boss (22) extending into the valve cavity (11) and used to abut against the float (3). The annular boss (22) is arranged around the second exhaust hole (21).

8. The quick-release valve according to claim 7, characterized in that, An avoidance groove (111) is formed between the outer wall of the annular boss (22) and the side wall of the valve cavity (11), and the avoidance groove (111) is used to avoid the first directional segment (331).

9. The quick-release valve according to claim 7, characterized in that, The quick pressure relief valve also includes a sealing gasket (4), and a sealing mounting part (34) is formed between the first section (331) and the guide post (31). The sealing gasket (4) is embedded in the sealing mounting part (34) and is used to form a sealing connection with the annular boss (22).

10. A pressure cooker, characterized in that, Includes the quick-release valve as described in any one of claims 1-9.

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