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US 12,747,794 B2Granted
Valve head structure and flow regulating valve with valve head structure
AssigneeZhejiang Dunan Artificial Environment Co., Ltd.
InventorsYuchen He, Leqiang Liu, Fangying Zhu
Life of this patent
Estimating the term…
Abstract
A valve head structure and a flow regulating valve with the valve head structure. The valve head structure is disposed in a valve body of the flow regulating valve for closing or avoiding a valve port of the valve body. The valve head structure includes: a valve head, which is movably disposed in the valve body; and an accommodating groove, which is formed in the valve head and is used for accommodating fluid in the valve body, wherein a distance between the valve head and the valve port is adjustable, and when the valve head moves to a position where the distance with the valve port is the maximum, at least part of the accommodating groove is located in an accommodating cavity of the valve body.
Claims26
A flow regulating valve, comprising a valve head structure, wherein the flow regulating valve further comprises:
- a valve body, which is provided with an interface in a radial direction and is provided with a valve port in an axial direction, wherein the valve head is movably disposed in the cavity of the valve body, so as to open or close the valve port;
- and
- a first connecting pipe, an end of which is a mounting end, wherein the mounting end penetrates into the cavity of the valve body from the interface, an inner wall surface of an opening of the mounting end is an annular flow guide surface, a first end of the flow guide surface that is located on an end surface of the mounting end is an inner end, a second end of the flow guide surface that is located in the first connecting pipe is an outer end, and in a direction from the inner end to the outer end, a radial size of the flow guide surface gradually decreases,
- wherein a distance between the inner end of the flow guide surface and an outer wall surface of the first connecting pipe is a, a distance between the outer end (34) of the flow guide surface and the outer wall surface of the first connecting pipe is b, a distance between the inner end and the outer end is c, 0.1b≤a≤0.5b, and 0.5b≤c≤4b;
- wherein the valve head structure is disposed in the valve body for closing or avoiding a valve port of the valve body, wherein the valve head structure comprises:
- a valve head, which is movably disposed in the valve body;
- and
- an accommodating groove, which is formed in the valve head and is used for accommodating fluid in the valve body,
- wherein a distance between the valve head and the valve port is adjustable, and when the valve head moves to a position where with the valve port is the maximum, at least part of the accommodating groove is located in an accommodating cavity of the valve body.
6 more elements
A flow regulating valve, comprising a valve head structure, wherein the flow regulating valve further comprises:
- a valve body, the valve body is provided with a valve port, the valve head structure is disposed in the valve body for closing or avoiding the valve port, wherein the valve head structure comprises:
- a valve head, which is movably disposed in the valve body;
- and
- an accommodating groove, which is formed in the valve head and is used for accommodating fluid in the valve body,
- wherein a distance between the valve head and the valve port is adjustable, and when the valve head moves to a position where with the valve port is the maximum, at least part of the accommodating groove is located in an accommodating cavity of the valve body;
- the valve head comprises a rod body and a sealing head, which are connected with each other, an end of the sealing head that is away from the rod body is provided with a first conical surface, a taper angle of the first conical surface is a1, 100%≤a1≤150°, and the sealing head is used for blocking the valve port;
- wherein the valve port comprises an overflowing hole segment and a sealing hole segment, which communicate with each other, a radial size of the sealing hole segment gradually increases in a direction where the overflowing hole segment faces the sealing hole segment, an inner wall of the sealing hole segment forms a second conical surface, a taper angle of the second conical surface is b1, and a1>b1.
4 more elements
A flow regulating valve, comprising a valve head structure, wherein the flow regulating valve further comprises:
- a valve body, the valve body is provided with a valve cavity, the valve head structure is disposed in the valve body for closing or avoiding a valve port of the valve body, wherein the valve head structure comprises:
- a valve head, which is movably disposed in the valve body;
- and
- an accommodating groove, which is formed in the valve head and is used for accommodating fluid in the valve body,
- wherein a distance between the valve head and the valve port is adjustable, and when the valve head moves to a position where with the valve port is the maximum, at least part of the accommodating groove is located in an accommodating cavity of the valve body;
- two ends of the valve cavity are respectively provided with a top wall and a bottom wall, a side wall of the valve cavity is provided with a circulation hole that communicates with the valve cavity, the circulation hole is located between the top wall and the bottom wall, and the bottom wall is provided with the valve port that communicates with the valve cavity, and at least part of the valve head is movably disposed in the valve cavity, so as to open or close the valve port;
- and
- a joint between the top wall and the side wall of the valve cavity is provided with an arc surface, on a cross section where an axis of the valve body is located, a curvature radius of an arc of the arc surface is R, and 1 mm≤R≤5 mm.
5 more elements
A flow regulating valve, comprising a valve head structure, the valve head structure is disposed in the valve body for closing or avoiding a valve port of the valve body, wherein the valve head structure comprises:
- a valve head, which is movably disposed in the valve body;
- and
- an accommodating groove, which is formed in the valve head and is used for accommodating fluid in the valve body,
- wherein a distance between the valve head and the valve port is adjustable, and when the valve head moves to a position where with the valve port is the maximum, at least part of the accommodating groove is located in an accommodating cavity of the valve body;
- wherein the flow regulating valve further comprises:
- a main valve seat, which is provided with the accommodating cavity;
- an auxiliary valve seat, comprising an auxiliary valve body and a sealing gasket connected with the auxiliary valve body, wherein the auxiliary valve body is connected with the main valve seat, the sealing gasket is provided with the valve port, the valve port communicates with the accommodating cavity, an end of the auxiliary valve body that is away from the valve port is provided with a second mounting groove, the valve head is movably disposed in the accommodating cavity, so as to block or open the valve port;
- and
- a second connecting pipe, wherein an end of the second connecting pipe is disposed in the second mounting groove, and the second connecting pipe communicates with the valve port,
- wherein a circulation area of the valve port is S1, and a circulation area of the second connecting pipe is S2, and |S1-S2|≤0.15S1.
7 more elements
A flow regulating valve, comprising a valve head structure, the valve head structure is disposed in the valve body for closing or avoiding a valve port of the valve body, wherein the valve head structure comprises:
- a valve head, which is movably disposed in the valve body;
- and
- an accommodating groove, which is formed in the valve head and is used for accommodating fluid in the valve body,
- wherein a distance between the valve head and the valve port is adjustable, and when the valve head moves to a position where with the valve port is the maximum, at least part of the accommodating groove is located in an accommodating cavity of the valve body;
- the flow regulating valve further comprises:
- a valve needle structure, the valve needle structure comprises a screw, a bearing and a bushing, the screw comprises a first rod section, a second rod section and a third rod section, which are sequentially connected, an outer diameter of the third rod section is greater than an outer diameter of the second rod section, the outer diameter of the second rod section is greater than an outer diameter of the first rod section, the bearing is sleeved on the second rod section, the bushing is sleeved on the first rod section, the bushing is fixedly connected with the first rod section, two end surfaces of an inner ring of the bearing respectively abut against an end surface of the third rod section and an end surface of the bushing, and the bearing is located in a cavity of the valve head.
3 more elements
Dependencies are inferred from the claim text.