CN103363128A - Center line-type butterfly valve with axle hole of valve body being internally provided with sealing ring - Google Patents
Center line-type butterfly valve with axle hole of valve body being internally provided with sealing ring Download PDFInfo
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- CN103363128A CN103363128A CN 201310327463 CN201310327463A CN103363128A CN 103363128 A CN103363128 A CN 103363128A CN 201310327463 CN201310327463 CN 201310327463 CN 201310327463 A CN201310327463 A CN 201310327463A CN 103363128 A CN103363128 A CN 103363128A
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- valve
- valve body
- seal ring
- axis hole
- sealing ring
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Abstract
The invention discloses a center line-type butterfly valve with an axle hole of a valve body being internally provided with a sealing ring. The center line-type butterfly valve comprises a handle, a fluted disc, a valve rod, the valve body, a valve seat and a valve clack, wherein one end of the valve rod is fixedly provided with the handle, the other end of the valve rod penetrates into the axle hole of the valve body, the fluted disc is arranged between the handle and the valve body, the valve seat is fixedly connected with the lower part of the valve body, the valve clack is fixedly arranged on the valve rod, the sealing ring is arranged in the axle hole, the outer diameter of the valve rod is greater than or equal to the inner diameter of the sealing ring, the sealing ring is in a V shape, and the V-shaped sealing ring is placed in the axle hole of the valve body in an open side down way. The invention provides the center line-type butterfly valve with the axle hole of the valve body being internally provided with the sealing ring, through arranging the sealing ring in the axle hole of the valve body, the sealing performance of the axle hole of the valve body is greatly improved.
Description
Technical field
The invention belongs to valve technology field, relate in particular to the centre-pivoted butterfly valve that a kind of valve body axis hole is provided with seal ring.
Background technique
Centre-pivoted butterfly valve is a kind of parts that are used for realizing pipe-line system break-make and flow control, obtains using very widely in many fields such as oil, chemical industry, metallurgy, water power.The structure characteristic of centre-pivoted butterfly valve is that valve rod axle center, butterfly plate center, body center are on same position.Simple in structure, easily manufactured.Common butterfly valve namely belongs to this type of.Shortcoming is because butterfly plate and valve seat are in extruding, scraping state, resistance all the time apart from large, quick abrasion.For overcoming extruding, scraping, guaranteeing that sealability, valve seat adopt rubber or teflon elastomeric material basically.
The valve body axis hole of centre-pivoted butterfly valve is the significant points of sealing, if seal badly, then the serious phenomenon of leakage can occur.
Summary of the invention
The purpose of this invention is to provide the centre-pivoted butterfly valve that a kind of valve body axis hole is provided with seal ring, to solve the defects that exists in the prior art.
For realizing purpose of the present invention, the invention provides the centre-pivoted butterfly valve that a kind of valve body axis hole is provided with seal ring, comprise handle, fluted disc, valve rod, valve body, valve seat, flap, one end of described valve rod is fixed with handle, the other end penetrates in the axis hole of described valve body, be provided with fluted disc between described handle and the described valve body, described valve seat divides with valve body lower portion and is fixedly connected with, described flap is fixed on the described valve rod, be provided with seal ring in the described axis hole, the external diameter of described valve rod is equal to or greater than the internal diameter of described seal ring.
Wherein, described seal ring is V-shaped seal ring.
Wherein, described V-shaped seal ring is in the axis hole of described valve body, and Open Side Down places.
Wherein, described seal ring is U-shaped seal ring.
Wherein, described U-shaped seal ring is in the axis hole of described valve body, and Open Side Down places.
The invention provides the centre-pivoted butterfly valve that a kind of valve body axis hole is provided with seal ring, by in the axis hole of valve body, seal ring being set, greatly improved the sealability of valve body axis hole.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of valve body of the present invention;
Fig. 3 is the structural representation of seal ring of the present invention;
Among the figure, 1-handle, 2-fluted disc, 3-valve rod, 4-valve body, 5-valve seat, 6-flap, 7-axis hole, 8-V type groove.
Embodiment
In order to make purpose of the present invention, technological scheme and beneficial effect clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be understood to specific embodiment described herein only in order to explain the present invention, be not limited to protection scope of the present invention.
For realizing purpose of the present invention, the invention provides the centre-pivoted butterfly valve that a kind of valve body axis hole is provided with seal ring, comprise handle, fluted disc, valve rod, valve body, valve seat, flap, one end of described valve rod is fixed with handle, the other end penetrates in the axis hole of described valve body, be provided with fluted disc between described handle and the described valve body, described valve seat divides with valve body lower portion and is fixedly connected with, described flap is fixed on the described valve rod, be provided with seal ring in the described axis hole, the external diameter of described valve rod is equal to or greater than the internal diameter of described seal ring.
Wherein, described seal ring is V-shaped seal ring.
Wherein, described V-shaped seal ring is in the axis hole of described valve body, and Open Side Down places.
Wherein, described seal ring is U-shaped seal ring.
Wherein, described U-shaped seal ring is in the axis hole of described valve body, and Open Side Down places.
Such as Fig. 1, Fig. 2, shown in Figure 3, the present invention adds a seal ring in the axis hole of valve body, and the internal diameter of seal ring is less than or equal to the external diameter of valve rod, like this can be so that valve rod and described seal ring closely be socketed, and sealing effect is better.
The shape of seal ring can be the rubber pad with a V-type groove as shown in the figure, also can be the rubber pad of a U-shaped groove, and Open Side Down places for above-mentioned rubber pad, adopts rubber pad and the modes of emplacement of this spline structure, and sealing effect is better.
In the preferred implementation, in order to strengthen sealing effect, also a plurality of above-mentioned sealing gaskets can be set in axis hole.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a valve body axis hole is provided with the centre-pivoted butterfly valve of seal ring, it is characterized in that, comprise handle, fluted disc, valve rod, valve body, valve seat, flap, one end of described valve rod is fixed with handle, and the other end penetrates in the axis hole of described valve body, is provided with fluted disc between described handle and the described valve body, described valve seat divides with valve body lower portion and is fixedly connected with, described flap is fixed on the described valve rod, is provided with seal ring in the described axis hole, and the external diameter of described valve rod is equal to or greater than the internal diameter of described seal ring.
2. valve body axis hole according to claim 1 is provided with the centre-pivoted butterfly valve of seal ring, it is characterized in that, described seal ring is V-shaped seal ring.
3. valve body axis hole according to claim 2 is provided with the centre-pivoted butterfly valve of seal ring, it is characterized in that, described V-shaped seal ring is in the axis hole of described valve body, and Open Side Down places.
4. valve body axis hole according to claim 1 is provided with the centre-pivoted butterfly valve of seal ring, it is characterized in that, described seal ring is U-shaped seal ring.
5. valve body axis hole according to claim 4 is provided with the centre-pivoted butterfly valve of seal ring, it is characterized in that, described U-shaped seal ring is in the axis hole of described valve body, and Open Side Down places.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310327463 CN103363128A (en) | 2013-07-31 | 2013-07-31 | Center line-type butterfly valve with axle hole of valve body being internally provided with sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310327463 CN103363128A (en) | 2013-07-31 | 2013-07-31 | Center line-type butterfly valve with axle hole of valve body being internally provided with sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103363128A true CN103363128A (en) | 2013-10-23 |
Family
ID=49365119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310327463 Pending CN103363128A (en) | 2013-07-31 | 2013-07-31 | Center line-type butterfly valve with axle hole of valve body being internally provided with sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103363128A (en) |
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2013
- 2013-07-31 CN CN 201310327463 patent/CN103363128A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131023 |