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CN-117860105-B - Pressure cooker cover and electric pressure cooker

CN117860105BCN 117860105 BCN117860105 BCN 117860105BCN-117860105-B

Abstract

The invention relates to the field of pressure cookers, in particular to a pressure cooker cover and a pressure cooker. The pressure cooker cover comprises a cooker cover body, wherein an exhaust valve and a float valve are arranged on the cooker cover body, the exhaust valve is provided with an airtight position and an exhaust position, the exhaust valve can be switched from the airtight position to the exhaust position through clockwise or anticlockwise rotation by a certain angle in an exhaust valve mounting hole, a linkage piece is arranged in the mounting cavity, the linkage piece is driven to move by a certain distance when the float valve falls under normal pressure and is driven to rotate to the airtight position, the linkage piece is driven to move by a certain distance when the float valve rises under high pressure, and the linkage piece is disconnected with the exhaust valve. The pressure cooker cover has the advantages of preventing dry heating caused by forgetting to reset the exhaust valve by a user under normal pressure and having flexible control under high pressure.

Inventors

  • ZOU ZONGBIN
  • ZOU ZONGJUN
  • Wan Shunfang
  • ZOU XIAOPING
  • ZOU XIAOTAO

Assignees

  • 中山市慧厨电器实业有限公司

Dates

Publication Date
20260508
Application Date
20240220

Claims (7)

  1. 1. The pressure cooker cover comprises a cooker cover body (1), wherein an exhaust valve (2) and a float valve (3) are arranged on the cooker cover body (1), the float valve (3) is movably connected with the cooker cover body (1) up and down, an exhaust valve mounting hole (14) is formed in the cooker cover body (1), the exhaust valve (2) is arranged in the exhaust valve mounting hole (14), the exhaust valve (2) is provided with an airtight position and an exhaust position, and the exhaust valve (2) can be switched from the airtight position to the exhaust position through clockwise or anticlockwise rotation by a certain angle in the exhaust valve mounting hole (14); the method is characterized in that: The pot cover body (1) comprises an inner layer body (11) and an outer layer body (12), a mounting cavity (13) is formed between the inner layer body (11) and the outer layer body (12), A linkage piece (4) is arranged in the mounting cavity (13), and the linkage piece (4) is in transmission connection with the float valve (3); Under normal pressure, the float valve (3) is positioned at the lower part of the pot cover body (1), the float valve (3) drives the linkage piece (4) to move for a certain distance when falling, and the linkage piece (4) drives the exhaust valve (2) to rotate to an airtight position; Under high pressure, the float valve (3) is positioned on the upper part of the pot cover body (1), the float valve (3) drives the linkage piece (4) to move for a certain distance when ascending, and the linkage piece (4) is disconnected with the exhaust valve (2).
  2. 2. The pressure cooker cover as claimed in claim 1, wherein: A frame body (5) is arranged in the mounting cavity (13), and the linkage piece (4) is in sliding connection with the frame body (5); The float valve (3) is provided with a conical surface (31), the linkage piece (4) is provided with an inclined surface (41), and the conical surface (31) is slidably connected with the inclined surface (41) through a key groove structure.
  3. 3. The pressure cooker cover as claimed in claim 1, wherein: a frame body (5) is arranged in the mounting cavity (13), the linkage piece (4) is in sliding connection with the frame body (5), a limiting part (51) is arranged in the frame body (5), and the limiting part (51) is used for limiting the sliding distance of the linkage piece (4); the float valve is characterized in that one end of the linkage piece (4) close to the float valve (3) is inclined downwards, a first magnet (6) is arranged on the float valve (3), a second magnet (7) which is mutually repulsive with the first magnet (6) is arranged on the linkage piece (4), and when the float valve (3) falls down, the float valve (3) pushes the linkage piece (4) to translate towards the exhaust valve (2) through magnetic force.
  4. 4. A pressure cooker cover as claimed in claim 2 or 3, wherein: Be equipped with boss (231) on discharge valve (2), work as discharge valve (2) are located when exhausting the position, just float valve (3) are located when pot cover body (1) lower part, the one end of linkage piece (4) with boss (231) butt is and thereby through promoting boss (231) promotes discharge valve (2) rotate to the sealing position.
  5. 5. The pressure cooker cover as claimed in claim 4, wherein: The exhaust valve (2) comprises a valve seat (21), a valve core (22) and a valve cover (23), wherein the valve core (22) is fixedly connected with the pot cover body (1), the valve cover (23) is arranged in the valve seat (21), a first notch (212) with an upward opening is arranged on the side wall of the valve seat (21), a second notch (213) with an upward opening is arranged at one end of the bottom of the first notch (212), a valve cover support arm (233) is arranged on the valve cover (23), when the valve cover support arm (233) is arranged in the second notch (213), the exhaust valve (2) is in a sealing position, and when the valve cover support arm (233) is arranged in the first notch (212), the exhaust valve (2) is in an exhaust position; The valve seat (21) is provided with a baffle plate (214), the valve cover (23) is provided with a limiting plate (232), the limiting plate (232) is arranged below the baffle plate (214), and the baffle plate (214) is used for limiting the height of the limiting plate (232) so that the height of the valve cover support arm (233) is not higher than the height of the top of the first notch (212); the valve seat (21) is provided with an avoidance port (211), and the linkage piece (4) stretches into the avoidance port (211).
  6. 6. The pressure cooker cover as claimed in claim 5, wherein: The valve cover (23) is fixedly provided with a piston (24), the valve core (22) is provided with a vent hole (221), and when the exhaust valve (2) is positioned at a sealing position, the piston (24) is positioned at the upper end of the vent hole (221) and seals the vent hole (221).
  7. 7. An electric pressure cooker, characterized by comprising the pressure cooker cover according to any one of claims 1-6, and further comprising a pressure cooker body, wherein the pressure cooker cover is detachably connected with the pressure cooker body.

Description

Pressure cooker cover and electric pressure cooker Technical Field The invention relates to the field of pressure cooker, in particular to a pressure cooker cover and an electric pressure cooker. Background The pressure cooker has two kinds of covers, one is a cover which needs to be connected with a power supply, and the other is a purely mechanical cover. The pot cover connected with the power supply is usually provided with an electromagnetic valve as an exhaust valve, so that the exhaust valve can be automatically controlled, but the pot cover is connected with the power supply, and the pot body is also connected with the power supply, so that the pot cover and the pot body cannot be separated, a circuit of the pot cover needs to be connected from the pot body, and the pot cover is inconvenient to clean. The mechanical pot cover can be separated from the pot body, so that the pot is convenient to clean. In order to solve the problem of dry heating of the pressure cooker, the invention application of the patent number CN108201333A discloses a safe electric cooker, wherein a liquid level sensor can measure the food material quantity in a working cavity, and the sensor senses the liquid level sensor and controls an electromagnetic valve to be opened and closed, so that dry heating is not easy to occur in use. In the mechanical pot cover, the exhaust valve can be manually adjusted to an exhaust position, and the exhaust valve can stay at the exhaust position so as to keep continuous exhaust. If one were to inadvertently hold the vent valve in the vent position during the initial stages of cooking, water vapor would continue to escape from the vent valve during cooking, causing dry heating of the food in the pressure cooker. In order to solve the dry heating problem of a pressure cooker, a Chinese patent No. CN113133647B proposes a cover body and cooking equipment, wherein the cover body comprises a pressure regulating valve device, an opening and closing cover linkage mechanism and a cover body device, when the cover body device is opened, the cover body device is linked with the opening and closing cover linkage mechanism and is linked with the pressure regulating valve device through the opening and closing cover linkage mechanism, the gear of the pressure regulating valve device is reset to an initial gear, the pressure regulating valve device comprises a pressure regulating valve and a linkage piece, the pressure regulating valve is provided with a plurality of gears, one of the gears is the initial gear, and the linkage piece is suitable for locking the gear of the pressure regulating valve, wherein when the cover body device is opened, the cover body device is linked with the opening and closing cover linkage mechanism and is linked with the linkage piece through the opening and closing cover linkage mechanism, and the gear locking of the pressure regulating valve is released. When the cover body device is opened, the stop part acts on the stop structure and drives the linkage piece to move, so that the linkage piece releases the gear locking of the pressure regulating valve. The prior art has the problem that for a mechanical pressure cooker cover, whether the pressure regulating valve is locked or not depends on whether the cover body is in a cover-closing state or a cover-opening state, which can result in that a user cannot exhaust air by using the pressure regulating valve under the cover-closing condition. At the end of cooking, the pressure cooker needs to be cooled to condense water vapor so as to reduce the air pressure in the pressure cooker, or a part of the air in the pressure cooker is discharged through an exhaust valve so as to reduce the air pressure. In the prior art, a user cannot accelerate the cooling process of the pressure cooker in the late cooking stage through the exhaust air, and the flexibility of pressure control of the pressure cooker with the mechanical pressure cooker cover is lost. Disclosure of Invention The invention aims to solve the technical problems, and provides an electric pressure cooker which is a mechanical pressure cooker cover, can prevent dry burning, can control an exhaust valve to exhaust manually by a user, and is flexible and convenient to use. The invention adopts the technical scheme that: The pressure cooker cover comprises a cooker cover body, wherein an exhaust valve and a float valve are mounted on the cooker cover body, the float valve is movably connected with the cooker cover body up and down, an exhaust valve mounting hole is formed in the cooker cover body, the exhaust valve is arranged in the exhaust valve mounting hole, the exhaust valve is provided with an airtight position and an exhaust position, the exhaust valve can be switched from the airtight position to the exhaust position through clockwise or anticlockwise rotation by a certain angle in the exhaust valve mounting hole, the cooker cover body comprises an inner layer body and an o