Cooker cover and pressure cooker

Abstract

The utility model belongs to the technical field of pressure cookers, and particularly relates to a cooker cover and a pressure cooker. According to the pot cover, the sealing piece is arranged in the movable hole communicated between the steam discharge chamber and the cover body, the sealing piece is provided with the sealing sleeve which extends towards one side and can swing and deform, the lever piece is arranged in the sealing opening of the sealing sleeve, and the two ends of the lever piece are connected with the control assembly and the pressure release valve respectively. Food steam in the steam discharging chamber is well prevented from entering the cover inner cavity of the cover body through the movable hole, the cover inner cavity is kept clean, the sealing sleeve has the advantage of being capable of swinging and deforming, the lever piece can be in sealing fit with the sealing opening when swinging, the food steam is also prevented from entering the cover inner cavity of the cover body through the sealing opening, and the sealing effect is good. The sealing piece is good in reliability and user experience.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure cookers, and particularly relates to a pot cover and a pressure cooker. Background Art

[0002] A pressure cooker is a common cooking container, and its working principle is to increase the pressure in a closed pot and conduct heat to food. When the pressure cooker is heated, the steam in the pot will increase the pressure in the pot, raising the boiling point of water and thus reducing the cooking time of food. After the food is cooked in the pressure cooker, if the pot cover is forcibly opened when there is still pressure in the pot, the high-temperature steam may suddenly spray out, causing burns. Therefore, it is necessary to open the pressure relief valve to release the pressure and discharge the steam in the pot. At this time, it is safe to open the pot cover. For the pot covers of existing pressure cookers, the pressure relief structure usually uses a lever to open the pressure relief valve in a lever manner, and the pressure relief valve installed in the pressure relief hole is usually arranged in the steam discharge chamber, while the lever is arranged in the inner cavity of the pot cover. The steam discharge chamber is communicated with the inner cavity of the cover through a movable hole, and the lever is swingably connected to the pressure relief valve through the movable hole. However, since the lever is swingably placed in the movable hole, it is easy for the food steam generated in the steam discharge chamber to enter the inner cavity of the pot cover through the movable hole, resulting in the inner cavity of the cover being prone to accumulating bacteria and odors and being difficult to clean for a long time. The use of the pot cover is not hygienic, and the user experience is not ideal. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the problem that food steam is easy to enter the inner cavity of the pot cover when using the pot cover of an existing pressure cooker, resulting in inconvenient cleaning, and to provide a pot cover and a pressure cooker with a sealing member that is hermetically matched with the lever in the movable hole.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A pot cover, comprising a cover body and a pressure relief structure; the cover body is provided with a steam discharge chamber and a pressure relief hole at the bottom of the steam discharge chamber, the top of the steam discharge chamber is provided with an exhaust structure, and the side of the steam discharge chamber is provided with a movable hole communicating with the inner cavity of the cover body; the pressure relief structure includes a control assembly, a lever, a sealing member, and a pressure relief valve located in the steam discharge chamber and placed in the pressure relief hole. The lever is rotatably connected in the inner cavity of the cover around a horizontal rotation axis, and two ends of the lever are respectively connected with the control assembly and the pressure relief valve. The sealing member is hermetically matched with the movable hole. The sealing member is provided with a sealing sleeve extending to one side and capable of being elastically deformed. The outer end of the sealing sleeve is provided with a sealing port. The middle part of the lever is placed in the sealing port and hermetically matched with the sealing port. The control assembly is used to control the working state of the pressure relief valve. When the pressure relief valve is opened, the pot cover releases the internal pressure.

[0006] Compared with the prior art, for the pot lid of the present utility model, a seal is provided in the movable hole communicating between the steam discharge chamber and the lid body. The seal is provided with a seal sleeve extending to one side and capable of swinging and deforming. The lever member is placed in the seal opening of the seal sleeve and is respectively connected to the control assembly and the pressure relief valve at both ends, which preferably prevents the food steam in the steam discharge chamber from entering the inner cavity of the lid body through the movable hole, keeping the inner cavity of the lid clean. Moreover, the seal sleeve has the characteristic of being capable of swinging and deforming, enabling the lever member to maintain a sealed fit with the seal opening during swinging, and also preventing food steam from entering the inner cavity of the lid body through the seal opening. The seal has good reliability and a good user experience.

[0007] Further, the seal sleeve is a conical sleeve or a corrugated sleeve; by such a setting, the seal sleeve is a conical sleeve or a corrugated sleeve, and the swinging deformation and sealed fit effect with the lever member are better.

[0008] Further, the seal sleeve extends towards the steam discharge chamber. The seal sleeve is connected to the middle of the seal through an axial movable part. The axial movable part extends from the seal towards the side away from the steam discharge chamber and can be axially deformed, and the axial movable part is connected around the outer periphery of the seal sleeve; by such a setting, the seal sleeve has a deformation effect in the axial direction, making the sealed fit effect between the seal sleeve and the swinging of the lever member in three-dimensional space better.

[0009] Further, the seal is made of a soft material. The lid body includes a lid seat with an upper opening and a lid shell for covering the lid seat. The pressure relief hole is provided in the lid seat, the steam discharge chamber is provided on the lid shell, and a first avoidance hole communicating with the pressure relief hole is provided at the bottom of the steam discharge chamber; a limit installation groove with a bottom opening is provided on the outside of the steam discharge chamber at the bottom of the lid shell. The limit installation groove communicates with the movable hole, and a second avoidance hole corresponding to the lever member is provided in the limit installation groove. The seal is installed in the limit installation groove. When the lid shell and the lid seat are assembled in place, the bottom of the seal abuts against the bottom wall of the lid shell; by such a setting, the seal has a better fixing effect outside the steam discharge chamber and a better sealed fit with the movable hole, and the assembly and fixing effect of the seal is stable.

[0010] Further, the seal is provided with a side blocking portion surrounding the outer periphery of the seal sleeve, and the front end of the side blocking portion fits against the outer side wall of the steam discharge chamber; by such a setting, the seal is in sealed fit with the outer periphery of the movable hole through the side blocking portion, and the sealing effect of the seal is good.

[0011] Furthermore, the seal is provided with a side blocking portion surrounding the outer periphery of the seal sleeve. The front end of the side blocking portion is attached to the outer side wall of the steam discharge chamber. The side blocking portion includes a lower side blocking portion which extends to the bottom of the steam discharge chamber. When the cover shell and the cover base are assembled in place, the lower side blocking portion is pressed tightly between the bottom of the steam discharge chamber and the bottom wall of the cover base. By such an arrangement, when the cover shell and the cover base are assembled in place, it can play a good role in fixing the seal and prevent the seal from shifting and affecting the sealing effect.

[0012] Furthermore, the pressure relief valve includes a gravity portion and a valve stem. A hollow exhaust passage is provided inside the valve stem. The gravity portion is provided with an exhaust cavity with an opening at the bottom. A steam vent communicating with the exhaust cavity is provided at the top of the gravity portion. A covering portion cooperating with the upper port of the exhaust passage is provided at the top of the exhaust cavity. The steam vent is arranged around the outside of the covering portion. The gravity portion is vertically movably sleeved on the upper part of the valve stem through the exhaust cavity. The lower part of the valve stem is fixed in the pressure relief hole. One end of the lever member abuts against the lower side of the gravity portion. The covering portion is located above the upper port of the exhaust passage. By operating the control assembly, the covering portion can be made to open the upper port of the exhaust passage, thereby opening the pressure relief valve. By such an arrangement, the pressure relief valve has a simple structure and the pressure relief operation of the pot lid is convenient.

[0013] Furthermore, the control assembly includes a button seat, a button portion, a reset member and a push rod provided at the bottom of the button portion, which are provided on the cover body. The button seat is provided with a vertically movable cavity with an opening at the upper side. The button portion is vertically movably provided in the vertically movable cavity. A push rod hole for the push rod to extend out is provided at the bottom of the button seat. The other end of the lever member is located below the push rod hole. The reset member is provided in the vertically movable cavity and its upper end abuts against the bottom of the button portion. When the button portion is pressed, it drives the push rod to extend out of the push rod hole and pushes the other end of the lever member downward. Thus, one end of the lever member pushes the gravity portion upward around the horizontal rotation axis to open the pressure relief valve. By such an arrangement, the control assembly is a push-button operation structure and is convenient to operate.

[0014] Furthermore, the exhaust structure includes an exhaust cover which is provided with an exhaust port. The exhaust cover covers the upper side opening of the steam discharge chamber. By such an arrangement, the exhaust structure has a simple setting method and a good exhaust effect.

[0015] The pressure cooker includes a pot body and the pot lid, and the pot lid can be opened or closed relative to the pot body. By such a setting, a seal is provided in the movable hole communicating between the steam discharge chamber and the lid body, and the seal is provided with a sealing sleeve extending to one side and capable of swinging and deforming. A lever member is placed in the sealing opening of the sealing sleeve and is respectively connected to the control assembly and the pressure relief valve at both ends, which preferably prevents the food steam in the steam discharge chamber from entering the inner cavity of the lid body through the movable hole, keeping the inner cavity of the lid clean. Moreover, the sealing sleeve has the characteristic of being capable of swinging and deforming, enabling the lever member to maintain a sealed fit with the sealing opening during swinging, and also preventing food steam from entering the inner cavity of the lid body through the sealing opening. The seal has good reliability and a good user experience. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the pot lid

[0017] Figure 2 It is a schematic diagram of the pot lid with the lid shell removed

[0018] Figure 3 It is a cross-sectional view of the pot lid at the pressure relief valve

[0019] Figure 4 It is a schematic diagram of the bottom of the lid shell

[0020] Figure 5 It is a schematic diagram of the control assembly

[0021] Figure 6 It is a schematic diagram of the button part

[0022] Figure 7 It is a schematic diagram of the corrugated sleeve-shaped sealing structure Figure 1

[0023] Figure 8 It is a schematic diagram of the corrugated sleeve-shaped sealing structure Figure 2

[0024] Figure 9 It is a schematic diagram of the conical sleeve-shaped sealing structure

[0025] Figure 10 It is a schematic diagram of the pressure cooker Detailed Embodiments

[0026] The following describes the detailed embodiments of the present invention with reference to the accompanying drawings. In the description of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] Embodiment 1:

[0028] Referring to Figures 1 to 9 , the pot lid 1 of the present utility model includes a lid body 11 and a pressure relief structure 12; the lid body 11 is provided with a steam discharge chamber 13 and a pressure relief hole 14 at the bottom of the steam discharge chamber 13, the top of the steam discharge chamber 13 is provided with an exhaust structure 15, and the side of the steam discharge chamber 13 is provided with a movable hole 161 communicating with the inner cavity 16 of the lid body 11; the pressure relief structure 12 includes a control component, a lever member 121, a sealing member 17 and a pressure relief valve 18 located in the steam discharge chamber 13 and placed in the pressure relief hole 14. The lever member 121 is rotatably connected in the inner cavity 16 of the lid around a horizontal rotation axis. For example, the lever member 121 is connected to a bracket 122 around a horizontal rotation axis and is installed in the lid body 11 through the bracket 122. The two ends of the lever member 121 are respectively connected to the control component and the pressure relief valve 18. The sealing member 17 is in sealing cooperation with the movable hole 161. The sealing member 17 is provided with a sealing sleeve 171 extending to one side and capable of movable deformation. The outer end of the sealing sleeve 171 is provided with a sealing port 172. The middle part of the lever member 121 is placed in the sealing port 172 and is in sealing cooperation with the sealing port 172. The control component is used to control the working state of the pressure relief valve 18. When the pressure relief valve 18 is opened, the pot lid 1 releases the internal pressure.

[0029] Compared with the prior art, for the pot lid 1 of the present utility model, by arranging the sealing member 17 in the movable hole 161 communicating between the steam discharge chamber 13 and the lid body 11, and the sealing member 17 is provided with a sealing sleeve 171 extending to one side and capable of swinging deformation. The lever member 121 is placed in the sealing port 172 of the sealing sleeve 171 and the two ends are respectively connected to the control component and the pressure relief valve 18, which preferably avoids the food steam in the steam discharge chamber 13 from entering the inner cavity 16 of the lid body 11 through the movable hole 161, keeping the inner cavity 16 clean. Moreover, the sealing sleeve 171 has the characteristic of being capable of swinging deformation, so that the lever member 121 can maintain sealing cooperation with the sealing port 172 during swinging, and also avoids the food steam from entering the inner cavity 16 of the lid body 11 through the sealing port 172. The sealing member 17 has good reliability and good user experience.

[0030] Referring to Figure 2 , Figure 3 , Figures 7 to 9 , in an embodiment, the sealing sleeve 171 is a conical sleeve or a corrugated sleeve, and the conical sleeve can be a circular conical sleeve or a pyramid-shaped one; by such arrangement, the sealing sleeve 171 is a conical sleeve or a corrugated sleeve, and the swinging deformation and sealing cooperation effect with the lever member 121 are better.

[0031] Referring to Figure 2 , Figure 3 , Figures 7 to 9, in one embodiment, the sealing sleeve 171 extends towards the steam discharge chamber 13. The sealing sleeve 171 is connected to the middle of the seal 17 through an axial movable part 173. The axial movable part 173 extends from the seal 17 towards the side away from the steam discharge chamber 13 and can be deformed by axial movement. The axial movable part 173 is connected around the outer periphery of the sealing sleeve 171. By such a setting, the sealing sleeve 171 has a deformation effect in the axial direction, so that the sealing sleeve 171 has a better swing sealing cooperation effect with the lever member 121 in the three-dimensional space.

[0032] See Figure 2 , Figure 3 , Figures 7 to 9 , in one embodiment, the seal 17 is made of a soft material. The cover 11 includes a cover base 111 with an upper opening and a cover shell 112 for covering the cover base 111. The pressure relief hole 14 is provided in the cover base 111. The steam discharge chamber 13 is provided on the cover shell 112 and is recessed towards the bottom. A first avoidance hole 113 communicating with the pressure relief hole 14 is provided at the bottom of the steam discharge chamber 13. A limit installation groove 114 with a bottom opening is provided outside the steam discharge chamber 13 at the bottom of the cover shell 112. The limit installation groove 114 communicates with the movable hole 161. A second avoidance hole 115 corresponding to the lever member 121 is provided in the limit installation groove 114. The width of the second avoidance hole 115 is smaller than the width of the limit installation groove 114, so that positioning grooves 116 for cooperating with both sides of the sealing structure are formed on both sides of the limit installation groove 114. The seal 17 is installed in the limit installation groove 114. When the cover shell 112 and the cover base 111 are assembled in place, the bottom of the seal 17 abuts against the bottom wall of the cover shell 112. By such a setting, the seal 17 has a better fixing effect outside the steam discharge chamber 13 and a better sealing cooperation with the movable hole 161, and the assembly and fixing effect of the seal 17 is stable.

[0033] See Figure 2 , Figure 3 , Figures 7 to 9 , in one embodiment, the seal 17 is provided with a side blocking portion 117 surrounding the outer periphery of the sealing sleeve 171. The side blocking portion 117 is integrally in the shape of a rectangular frame, and the front end of the side blocking portion 117 is attached to the outer side wall of the steam discharge chamber 13. By such a setting, the seal 17 is in sealing cooperation with the outer periphery of the movable hole 161 through the side blocking portion 117, and the sealing effect of the seal 17 is good.

[0034] See Figure 2 , Figure 3 , Figures 7 to 9, in one embodiment, the seal 17 is provided with a side blocking portion 117 surrounding the outer periphery of the seal sleeve 171. The front end of the side blocking portion 117 is attached to the outer side wall of the steam discharge chamber 13. The side blocking portion 117 includes a lower side blocking portion 118 which extends to the bottom of the steam discharge chamber 13. When the cover shell 112 and the cover base 111 are assembled in place, the lower side blocking portion 118 is pressed between the bottom of the steam discharge chamber 13 and the bottom wall of the cover base 111. By such an arrangement, when the cover shell 112 and the cover base 111 are assembled in place, it can play a good role in fixing the seal 17 and prevent the seal 17 from being displaced to affect the sealing effect.

[0035] See Figures 1 to 6 , in one embodiment, the pressure relief valve 18 includes a gravity portion 181 and a valve stem 182. A hollow exhaust passage 183 is provided inside the valve stem 182. The gravity portion 181 is provided with an exhaust cavity 184 with an open bottom. A steam vent 185 communicating with the exhaust cavity 184 is provided at the top of the gravity portion 181. A covering portion 186 mating with the upper port of the exhaust passage 183 is provided at the top of the exhaust cavity 184. The steam vent 185 is arranged around the outside of the covering portion 186. The gravity portion 181 is vertically movably sleeved on the upper part of the valve stem 182 through the exhaust cavity 184. The lower part of the valve stem 182 is fixed in the pressure relief hole 14. One upper side of one end of the lever member 121 abuts against the lower side of the gravity portion 181. The covering portion 186 is located above the upper port of the exhaust passage 183. By operating the control assembly, the covering portion 186 can be made to open the upper port of the exhaust passage 183, thereby opening the pressure relief valve 18. By such an arrangement, the structure of the pressure relief valve 18 is simple and the pressure relief operation of the pot lid 1 is convenient.

[0036] See Figures 1 to 6, in one embodiment, the control assembly includes a key seat 191, a key portion 192, a reset member (not shown in the figure), and a push rod 193 provided at the bottom of the key portion 192, which are provided on the lid 11. The reset member is a reset spring. The key seat 191 is provided with a vertical moving cavity 194 with an upper opening. The key portion 192 is vertically movably arranged in the vertical moving cavity 194 and covers the upper opening of the key seat 191. A push rod hole 195 for the push rod 193 to extend out is provided at the bottom of the key seat 191. The push rod hole 195 communicates with the vertical moving cavity 194. The other end of the lever member 121 is located below the push rod hole 195. The reset member is arranged in the vertical moving cavity 194 and its upper end abuts against the bottom of the key portion 192. When the key portion 192 is pressed, the push rod 193 extending out of the push rod hole 195 is driven to push the other end of the lever member 121 downward. Thus, one end of the lever member 121 pushes the gravity portion 181 upward around the horizontal rotation axis to open the pressure relief valve 18. The reset member is used to reset the key portion 192 to the initial position when the external force on the key portion 192 is eliminated. With such an arrangement, the control assembly is a push-type operation structure, and the pressure relief valve 18 can be opened by pressing the key portion 192 to realize the pressure relief of the lid 1, and the operation is convenient.

[0037] See Figures 1 to 6 , in one embodiment, the push rod 193 is located in the middle of the bottom of the key portion 192. The key portion 192 is provided with a plurality of limit buckles 196 on the outer periphery of the push rod 193. The bottom of the vertical moving cavity 194 is provided with a clamping hole 197 corresponding to the limit buckles 196 on the outer periphery of the push rod hole 195. When the key portion 192 is assembled in the vertical moving cavity 194, the limit buckles 196 are buckled at the bottom of the clamping hole 197. The clamping hole 197 is used to limit the key portion 192 from disengaging from the vertical moving cavity 194.

[0038] See Figures 1 to 6 , in one embodiment, the exhaust structure 15 includes an exhaust cover. The exhaust cover is provided with an exhaust port 151. The exhaust cover covers the upper opening of the steam discharge chamber 13. With such an arrangement, the exhaust structure 15 has a simple setting method and a good exhaust effect.

[0039] Embodiment Two:

[0040] See Figures 1 to 10 , the main purpose of this embodiment is to provide a pressure cooker applying the lid 1 of Embodiment One, including a pot body 2 and the lid 1. The lid 1 can be opened or closed relative to the pot body 2.

[0041] Compared with the prior art, for the pressure cooker of the present utility model, a seal 17 is provided in the movable hole 161 communicating between the steam discharge chamber 13 and the cover body 11. Moreover, the seal 17 is provided with a seal sleeve 171 extending to one side and capable of swinging deformation. The lever member 121 is placed in the seal opening 172 of the seal sleeve 171 and is respectively connected to the control assembly and the pressure relief valve 18 at both ends, which preferably avoids the food steam in the steam discharge chamber 13 from entering the cover inner cavity 16 of the cover body 11 through the movable hole 161, keeping the cover inner cavity 16 clean. Moreover, the seal sleeve 171 has the characteristic of being capable of swinging deformation, enabling the lever member 121 to maintain a sealed fit with the seal opening 172 during swinging, and also avoiding the food steam from entering the cover inner cavity 16 of the cover body 11 through the seal opening 172. The seal 17 has good reliability and good user experience.

[0042] According to the disclosure and teachings of the above specification, those skilled in the art to which the present utility model pertains can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present utility model should also fall within the protection scope of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. A pot cover, characterized in that: include: The cover body is provided with a steam discharge chamber and a pressure relief hole at the bottom of the steam discharge chamber, a steam exhaust structure is provided at the top of the steam discharge chamber, and a movable hole communicating with the inner cavity of the cover body is provided at the side of the steam discharge chamber; The pressure relief structure includes a control component, a lever part, a sealing part and a pressure relief valve located in the steam discharge chamber and placed in the pressure relief hole. The lever part is rotatably connected to the inner cavity of the lid around a horizontal rotation axis. The two ends of the lever part are respectively connected to the control component and the pressure relief valve. The sealing part is sealed with the movable hole. The sealing part is provided with a sealing sleeve extending to one side and being movably deformable. The outer end of the sealing sleeve is provided with a sealing port. The middle part of the lever part is placed in the sealing port and is sealed with the sealing port. The control component is used to control the working state of the pressure relief valve. When the pressure relief valve is opened, the pressure inside the pot lid is released.

2. The pot cover according to claim 1, characterized in that: The sealing sleeve is a conical sleeve or a corrugated sleeve.

3. The pot cover according to claim 1 or 2, characterized in that: The sealing sleeve extends toward the steam discharge chamber, and is connected to the middle of the sealing member via an axially movable portion. The axially movable portion extends from the sealing member toward a side away from the steam discharge chamber and can be deformed in an axial direction, and the axially movable portion is connected around the outer periphery of the sealing sleeve.

4. The pot cover according to claim 1, characterized in that: The sealing member is made of soft material, the cover body comprises a cover seat with an upper opening and a cover shell for covering the cover seat, the pressure relief hole is arranged on the cover seat, the steam discharge chamber is arranged on the cover shell, and a first avoidance hole communicating with the pressure relief hole is arranged at the bottom of the steam discharge chamber; The bottom of the cover shell is located outside the steam discharge chamber and is provided with a limiting installation groove with a bottom opening, the limiting installation groove is connected to the movable hole, the limiting installation groove is provided with a second avoidance hole corresponding to the lever member, the sealing member is installed in the limiting installation groove, and when the cover shell and the cover seat are assembled in place, the bottom of the sealing member abuts against the bottom wall of the cover shell.

5. The pot cover according to claim 1 or 4, characterized in that: The sealing member is provided with a side baffle portion surrounding the outer circumference of the sealing sleeve, and the front end of the side baffle portion is in contact with the outer wall of the steam discharge chamber.

6. The pot cover according to claim 4, characterized in that: The sealing member is provided with a side baffle portion surrounding the outer circumference of the sealing sleeve, the front end of the side baffle portion is in contact with the outer wall of the steam discharge chamber, the side baffle portion includes a lower side baffle, and the lower side baffle extends to the bottom of the steam discharge chamber. When the cover shell and the cover seat are assembled in place, the lower side baffle is pressed between the bottom of the steam discharge chamber and the bottom wall of the cover seat.

7. The pot cover according to any one of claims 1, 2 or 4, characterized in that: The pressure relief valve includes a gravity part and a valve stem, a hollow exhaust passage is provided on the inner side of the valve stem, the gravity part is provided with an exhaust chamber with a bottom opening, a steam port connected to the exhaust chamber is provided on the top of the gravity part, a covering part matched with an upper port of the exhaust passage is provided on the top of the exhaust chamber, the steam port is arranged around the outside of the covering part, the gravity part can be vertically movably sleeved on the upper part of the valve stem through the exhaust chamber, the lower part of the valve stem is fixed in the pressure relief hole, the upper side of one end of the lever member abuts against the lower side of the gravity part, the covering part is located on the upper side of the upper port of the exhaust passage, and the covering part can open the upper port of the exhaust passage by operating the control assembly, thereby opening the pressure relief valve.

8. The pot cover according to claim 7, characterized in that: The control assembly includes a button seat, a button part, a reset member and a push rod arranged at the bottom of the button part, the button seat is provided with a vertical movable cavity with an upper opening, the button part can be vertically movably arranged in the vertical movable cavity, the bottom of the button seat is provided with a push rod hole for the push rod to extend, the other end of the lever member is located at the lower side of the push rod hole, the reset member is arranged in the vertical movable cavity and its upper end abuts against the bottom of the button part, when the button part is pressed, the push rod hole through which the push rod extends pushes the other end of the lever member to move downward, so that one end of the lever member pushes the gravity part to move upward around the horizontal rotation axis to open the pressure relief valve.

9. The pot cover according to claim 1, characterized in that: The steam exhaust structure comprises a steam exhaust cover, the steam exhaust cover is provided with a steam exhaust port, and the steam exhaust cover covers the upper opening of the steam exhaust chamber.

10. A pressure cooker, characterized in that The invention comprises a pot body and a pot cover according to any one of claims 1 to 9, wherein the pot cover opens or closes the pot body relative to the pot body.

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