Automatic pressure release device of coffee machine
A technology for automatic pressure relief and coffee machines, which is applied in the direction of valve devices, beverage preparation devices, mechanical equipment, etc., can solve the problems of complex structure, many parts and high production costs of automatic pressure relief valves, and achieve simple and reasonable structure and low production costs , high security effect
Inactive Publication Date: 2009-12-02
GUANGDONG XINBAO ELECTRICAL APPLIANCES HLDG CO LTD
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Problems solved by technology
This kind of automatic pressure relief valve has complicated structure, many parts and components, relatively high production cost, and relatively low pass rate, so it is difficult to meet the requirements of users.
Method used
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Embodiment Construction
[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0015] see Figure 1-Figure 5 , The automatic pressure relief device of the coffee machine includes a valve body 1, the valve body is provided with an external thread, and the base of the external thread is provided with a sealing ring 4. The valve body 1 is provided with a valve chamber and a water inlet 1.1 and a water outlet 1.2 connected to the valve chamber, a valve core 3 is arranged in the valve chamber, and a passage port is provided between the valve chamber and the water outlet 1.2, and the cross section of the passage port is conical . The upper end of the spool 3 is provided with a plugging head 3.1, the cross section of the plugging head is conical, and the cross section angle of the plugging head 3.1 is smaller than that of the channel opening. The hollow bonnet 2 is arranged below the spool 3, the upper end of the bonnet 2 communicates ...
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The invention relates to an automatic pressure release device of a coffee machine, which comprises a valve body; the valve body is provided with a valve cavity, and a water inlet and a water outlet which are communicated with the valve cavity; the inside of the valve cavity is provided with a valve core; a channel port is arranged between the valve cavity and the water outlet; the upper end of the valve core is provided with a blocking head; a hollow valve cover is arranged below the valve core; the upper end of the valve cover is communicated with the valve cavity; the lower part of the valve cover is communicated with the water inlet; and a circulating clearance is reserved between the outer wall of the valve core and the inner wall of the valve cavity. The section of the channel port is tapered. The section of the blocking head is tapered. A section angle of the blocking head is smaller than that of the channel port. The distance between the upper end of the valve cover and the channel port is more than the length of the valve core. Through the acting force of high-pressure water and the deadweight of the valve core for pressure release, the automatic pressure release device allows the valve core to move up and down to realize the water outlet, namely the conversion of the opening and closing of a pressure release channel, and finally achieves the aim of automatic pressure release; and the automatic pressure release device has the characteristics of simple and reasonable structure, flexible and convenient operation, high safety degree, reliable performance and low manufacturing cost.
Description
technical field [0001] The invention relates to a coffee machine, in particular to an automatic pressure relief device for the coffee machine. Background technique [0002] Chinese Patent Document No. CN 201053521 Y discloses an automatic pressure relief valve for coffee machines. The valve body is provided with a valve cavity and a water inlet and a water outlet connected to the valve cavity. The valve plug that connects or disconnects the water inlet and the water outlet and the spring that pushes the valve plug are characterized in that: the water inlet is set at one end of the valve cavity, and the water outlet is set on the side wall of the valve cavity: opposite to the water inlet The other end of the valve cavity is provided with a drain port; the valve plug and spring are located between the water inlet and the drain port; the spring stretches and the valve plug closes the water inlet and the water outlet is connected to the drain port, or the spring is compressed an...
Claims
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IPC IPC(8): A47J31/58F16K17/12
Inventor 郭建刚闵小刚王威
Owner GUANGDONG XINBAO ELECTRICAL APPLIANCES HLDG CO LTD