Pressure limiting valve for pressure cooker
A pressure cooker and pressure limiting valve technology, applied in pressure cookers and other directions, can solve the problems of high difficulty in processing spherical weights, difficulty in ensuring spherical roundness, air leakage between weights and exhaust pipes, etc. Simple, stable valve body position
Active Publication Date: 2015-10-28
DONGGUAN BBK HOUSEHOLD ELECTRICAL APPLICANCES
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- Application Information
AI Technical Summary
Problems solved by technology
[0003] However, the processing of the spherical weight is very difficult, and it is difficult to guarantee its absolute spherical roundness, resulting in a slight air leakage due to gaps between the weight and the exhaust pipe even after sealing. Moreover, the spherical weight is placed in the exhaust The pipe will also cause air leakage due to vibration or uneven work surface.
Method used
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Embodiment Construction
[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0021] Such as figure 1 , image 3 and Figure 4 The pressure limiting valve of the shown pressure cooker is made up of plastic valve seat 1 and valve body 2 . The valve body 2 is composed of a metal weight 21, a non-metal valve sleeve 22 and a stainless steel valve core 24. The valve core 24 is integrally formed, and metal turning is preferred. The upper part of the valve core 24 forms an external thread 26, and the metal weight 21 is formed The internal thread matched with the external thread 26, the upper part of the valve core 24 is threadedly connected with the metal weight 21, and the whole is put into the mold, and the non-metallic valve sleeve 22 is injection molded at one time, and the non-metallic valve sleeve 22 wraps the metal weight covered inside. A protruding ring 28 disposed in the non-metal valve sleeve 22 is formed on the ...
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The invention discloses a pressure limiting valve of a pressure cooker. The pressure limiting valve of the pressure cooker overcomes the defects that an existing pressure limiting valve of a pressure cooker is high in processing difficulty, poor in sealing effect and prone to air leakage. The technical scheme includes that the pressure limiting valve of the pressure cooker comprises a valve seat, a valve body and a valve spool, the valve body comprises a metal heavy hammer and a nonmetal valve sleeve coated outside the heavy hammer, an arc face protruding outwards is formed at the bottom of the valve seat, a circle of fit surface which can be hermetically matched with the arc face is formed at the upper end of the valve seat, the upper portion of the valve spool is connected with the valve body, and a conical section positioned outside of the valve sleeve is formed on the lower portion of the valve spool. The pressure limiting valve of the pressure cooker has the advantages of simplicity in processing, good sealing effect in connection with an exhaust pipe and capability of avoiding air leakage.
Description
technical field [0001] The invention relates to a pressure cooker accessory, in particular to a pressure limiting valve of a pressure cooker. Background technique [0002] The pressure limiting valve is a pressure cooker accessory that adjusts the pressure in the pot by opening or closing the exhaust of the pressure cooker. Pressure cookers currently on the market generally use a hammer-type pressure limiting valve, the spherical weight is directly sealed with the exhaust pipe, and a push rod controlled by a power unit pushes the spherical weight from the side, and the spherical weight rolls away from the exhaust pipe to realize Automatic venting function of the pressure cooker. [0003] However, the processing of the spherical weight is very difficult, and it is difficult to guarantee its absolute spherical roundness, resulting in a slight air leakage due to gaps between the weight and the exhaust pipe even after sealing. Moreover, the spherical weight is placed in the exh...
Claims
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IPC IPC(8): A47J27/09
Inventor 陈合林
Owner DONGGUAN BBK HOUSEHOLD ELECTRICAL APPLICANCES