CN213744983U - Normally closed Y-shaped diaphragm valve - Google Patents
Normally closed Y-shaped diaphragm valve Download PDFInfo
- Publication number
- CN213744983U CN213744983U CN202021997572.9U CN202021997572U CN213744983U CN 213744983 U CN213744983 U CN 213744983U CN 202021997572 U CN202021997572 U CN 202021997572U CN 213744983 U CN213744983 U CN 213744983U
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- China
- Prior art keywords
- diaphragm
- ring
- valve body
- valve
- liquid inlet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 64
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model relates to a normally closed Y-shaped diaphragm valve, which comprises a valve body, wherein the valve body is a Y-shaped tube cavity with an inverted tee joint, the valve body is provided with a diaphragm cavity cover, a liquid inlet and a liquid outlet, and an isolating ring is fixed in the upper cavity of the valve body; the liquid inlet and the liquid outlet are arranged below the isolating ring, the middle part of the top of the diaphragm cavity cover is opened and is communicated with the liquid inlet through a through pipe; and a diaphragm cavity cover of the valve body is provided with a valve rod assembly in a penetrating way. The normally closed Y-shaped diaphragm valve of the utility model is communicated with the control cavity and the liquid inlet through the through pipe, and the position of the valve rod component is kept unchanged through the pressure of liquid or gas, so that a channel between the liquid inlet and the liquid outlet is cut off, and the diaphragm valve is closed for a long time; when the liquid inlet needs to be opened, the through hole is externally connected with a medium pressure source, so that a channel between the liquid inlet and the liquid outlet is communicated, and the opening is realized.
Description
Technical Field
The utility model relates to a Y type diaphragm valve technical field especially relates to a normal close formula Y type diaphragm valve.
Background
The Y-shaped diaphragm valve is widely applied to industries such as urban pipe network water supply and drainage, fire control water supply, petrochemical industry, pharmaceutical industry, industrial and mining enterprises and the like, water treatment, purified water preparation, boilers, air conditioning heating, agriculture and forestry irrigation and the like. With the rapid development of hydraulic systems, control circuits of hydraulic systems are becoming more complex and diversified, and in order to improve the visibility of the operating state of each control circuit and provide an accurate basis for function judgment, the judgment of the operating state of diaphragm valves in the circuits is particularly important.
At present, the known Y-type diaphragm valve mainly comprises a valve body, a valve rod assembly, a spacer ring, a diaphragm and a diaphragm cavity cover, wherein a diaphragm cavity is divided into an upper cavity and a lower cavity by the diaphragm, and the valve rod assembly is driven to move up and down through the change of fluid pressure in the cavity, so that a diaphragm valve port is in an open state or a closed state.
Some diaphragm valves require frequent closing for a long period of time, such as valves for fire pipes, which is inconvenient and cumbersome if the valves are closed by externally connecting an additional medium pressure source (liquid or gas, medium with pressure difference).
Therefore, the normally closed Y-shaped diaphragm valve is designed to solve the problems.
Disclosure of Invention
The utility model provides a normally closed Y-shaped diaphragm valve for overcoming the above disadvantages, which comprises a valve body, wherein the valve body is a Y-shaped tube cavity with inverted tee joint, the valve body is provided with a diaphragm cavity cover, a liquid inlet and a liquid outlet, and an isolating ring is fixed in the upper cavity of the valve body; the liquid inlet and the liquid outlet are arranged below the isolating ring, the middle part of the top of the diaphragm cavity cover is opened and is communicated with the liquid inlet through a through pipe; a diaphragm cavity cover of the valve body is provided with a valve rod assembly in a penetrating way;
the valve rod assembly comprises a rod body, wherein an upper push ring is fixed at one end of the rod body, a lower push ring is fixedly connected to the other end of the rod body, which penetrates through the isolating ring, the periphery of the upper push ring is fixedly sleeved with an elastic ring-cap-shaped diaphragm, and the peripheral edge of the diaphragm is fixedly clamped between the diaphragm cavity cover and the contact surface of the valve body;
the lower push ring, the upper push ring and the rod body are integrally formed and can move up and down relative to the isolating ring; the lower push ring moves downwards to block the liquid inlet; the lower push ring moves upwards to block an upper through pipe of the valve body; the diaphragm, the push-up ring and the diaphragm cavity cover form a control cavity; the lower push ring, the upper push ring, the isolation ring and the diaphragm are all made of elastic materials; and a through hole is formed in one side of the valve body, and the position of the through hole is located on the side wall of the valve body above the isolating ring and below the diaphragm.
Preferably, the isolating ring and the valve body are detachably connected in an inserting manner.
Preferably, a sealing ring is arranged at the joint of the isolating ring and the rod body.
Preferably, the through pipe is a stainless steel pipe.
The utility model has the advantages that:
the normally closed Y-shaped diaphragm valve of the utility model is communicated with the control cavity and the liquid inlet through the through pipe, and the position of the valve rod component is kept unchanged through the pressure of liquid or gas, so that a channel between the liquid inlet and the liquid outlet is cut off, and the diaphragm valve is closed for a long time; when the liquid inlet needs to be opened, the through hole is externally connected with a medium pressure source, so that a channel between the liquid inlet and the liquid outlet is communicated, and the opening is realized.
Drawings
Fig. 1 is a perspective view (fully closed state) of the present invention;
fig. 2 is a perspective view (fully open state) of the present invention;
wherein:
1-liquid inlet; 2-a liquid outlet; 3-a valve body; 31-a through hole; 4-a diaphragm chamber cover; 5-a spacer ring; 6-a rod body; 61-push-up ring; 62-pushing down the ring; 7-a separator; 8-through pipe.
Detailed Description
The following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
A normally closed Y-shaped diaphragm valve comprises a valve body 3, wherein the valve body 3 is a three-way inverted Y-shaped pipe cavity, the valve body 3 is provided with a diaphragm cavity cover 4, a liquid inlet 1 and a liquid outlet 2, and an isolating ring 5 is fixed in an upper cavity of the valve body 3; the liquid inlet 1 and the liquid outlet 2 are arranged below the isolating ring 5, the middle part of the top of the diaphragm cavity cover 4 is opened and is communicated with the liquid inlet 1 through a through pipe 8, and the through pipe 8 is communicated with the liquid inlet 1; a valve rod assembly is arranged on the diaphragm cavity cover 4 of the valve body 3 in a penetrating way;
the valve rod assembly comprises a rod body 6, an upper push ring 61 is fixed at one end of the rod body 6, a lower push ring 62 is fixedly connected to the other end of the rod body 6 penetrating through the isolating ring 5, an elastic ring-cap-shaped diaphragm 7 is fixedly sleeved on the periphery of the upper push ring 61, and the peripheral edge of the diaphragm 7 is fixedly clamped between the diaphragm cavity cover 4 and the contact surface of the valve body 3;
the lower push ring 62, the upper push ring 61 and the rod body 6 are integrally formed and can move up and down relative to the isolating ring 5; the lower push ring 62 moves downwards to block the liquid inlet 1; the downward pushing ring 62 moves upward to block the upper through pipe of the valve body 3; the diaphragm 7 and the push-up ring 61 form a control cavity with the diaphragm cavity cover 4; the lower push ring 62, the upper push ring 61, the isolation ring 5 and the diaphragm 7 are all made of elastic materials; one side of the valve body 3 is provided with a through hole 31, and the position of the through hole 31 falls on the side wall of the valve body 3 above the isolating ring 5 and below the diaphragm 7.
Preferably, the isolating ring 5 and the valve body 3 are detachably connected in an inserting manner.
Preferably, a sealing ring is arranged at the joint of the isolating ring 5 and the rod body 6.
Preferably, the through pipe 8 is a stainless steel pipe.
The using method comprises the following steps:
the vent hole 31 is used for communicating with the outside air; the liquid inlet 1 is connected with a liquid inlet pipe, and the liquid outlet 2 is connected with a liquid outlet pipe or directly discharges liquid;
closing the valve for a long time:
as shown in fig. 1, liquid or gas flows into the liquid inlet 1, a part of the liquid or gas enters the control cavity through the through pipe 8 and fills the control cavity, and the other part of the liquid or gas reaches the lower end surface of the push-down ring 62 at the liquid inlet 1; the control cavity is communicated with the liquid inlet 1 through the through pipe 8, and the valve rod assembly is kept unchanged by the pressure of the liquid or the gas because the liquid or the gas contacted with the upper push ring 61 and the lower push ring 62 is homologous liquid or gas, so that a channel between the liquid inlet 1 and the liquid outlet 2 is cut off, and the diaphragm valve is closed for a long time;
when the valve needs to be opened:
as shown in fig. 2, an external medium pressure source (liquid or gas with a pressure greater than that of the flowing liquid or gas of the valve) injects a medium into the valve body 3 from the through hole 31, the medium with a large pressure pushes the push-up ring 61 to extrude the liquid or gas in the control cavity into the through pipe 8, after the control cavity is flattened, the whole valve assembly moves upwards to separate the bottom surface of the push-down ring 62 from the liquid inlet 1, and a channel between the liquid inlet 1 and the liquid outlet 2 is opened to open the valve.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A normally closed Y-shaped diaphragm valve comprises a valve body (3), wherein the valve body (3) is a three-way inverted Y-shaped tube cavity, the valve body (3) is provided with a diaphragm cavity cover (4), a liquid inlet (1) and a liquid outlet (2), and an isolating ring (5) is fixed in an upper cavity of the valve body (3); the liquid inlet (1) and the liquid outlet (2) are arranged below the isolating ring (5), the middle part of the top of the diaphragm cavity cover (4) is opened and is communicated with the liquid inlet (1) through a through pipe (8), and the through pipe (8) is communicated with the liquid inlet (1); a valve rod assembly is arranged on a diaphragm cavity cover (4) of the valve body (3) in a penetrating way;
the valve rod assembly is characterized by comprising a rod body (6), wherein one end of the rod body (6) is fixedly provided with an upper push ring (61), the middle part of the rod body (6) penetrates through the other end of the isolating ring (5) and is fixedly connected with a lower push ring (62), an elastic ring-cap-shaped diaphragm (7) is fixedly sleeved on the periphery of the upper push ring (61), and the peripheral edge of the diaphragm (7) is fixedly clamped between the diaphragm cavity cover (4) and the contact surface of the valve body (3);
the lower push ring (62), the upper push ring (61) and the rod body (6) are integrally formed and can move up and down relative to the isolating ring (5); the lower push ring (62) moves downwards to block the liquid inlet (1); the downward push ring (62) moves upwards to block an upper through pipe of the valve body (3); the diaphragm (7) and the push-up ring (61) form a control cavity with the diaphragm cavity cover (4); the lower push ring (62), the upper push ring (61), the isolation ring (5) and the diaphragm (7) are all made of elastic materials; one side of the valve body (3) is provided with a through hole (31), and the position of the through hole (31) falls on the side wall of the valve body (3) above the isolating ring (5) and below the diaphragm (7).
2. A normally closed Y-type diaphragm valve according to claim 1, wherein the connection of the isolating ring (5) and the valve body (3) is a detachable plug.
3. A normally closed Y-type diaphragm valve according to claim 2, wherein a sealing ring is provided at the junction of the isolating ring (5) and the rod body (6).
4. A normally closed Y-type diaphragm valve according to claim 3, wherein the through pipe (8) is a stainless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021997572.9U CN213744983U (en) | 2020-09-14 | 2020-09-14 | Normally closed Y-shaped diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021997572.9U CN213744983U (en) | 2020-09-14 | 2020-09-14 | Normally closed Y-shaped diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213744983U true CN213744983U (en) | 2021-07-20 |
Family
ID=76843167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021997572.9U Expired - Fee Related CN213744983U (en) | 2020-09-14 | 2020-09-14 | Normally closed Y-shaped diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213744983U (en) |
-
2020
- 2020-09-14 CN CN202021997572.9U patent/CN213744983U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |