CN212480205U - Valve rod seal reinforced ball valve - Google Patents
Valve rod seal reinforced ball valve Download PDFInfo
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- CN212480205U CN212480205U CN202021069798.2U CN202021069798U CN212480205U CN 212480205 U CN212480205 U CN 212480205U CN 202021069798 U CN202021069798 U CN 202021069798U CN 212480205 U CN212480205 U CN 212480205U
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Abstract
The utility model relates to a valve rod seal reinforced ball valve, wherein a valve rod passes through a fixed seat and is connected with a valve ball; the valve ball comprises an upper plane, a lower plane and a middle flow passage, and platforms are arranged on the upper surface and the lower surface in the valve body; the upper plane and the lower plane of a valve ball fixed in the valve body are respectively matched with the platform at the upper part and the platform at the lower part in the valve body in height; the lower part of the valve rod is an annular part, the outer diameter of the annular part is consistent with the diameter of the cylindrical channel of the fixed seat, and a first sealing gasket in a compressed state is arranged between the annular part and the valve ball; the valve cap is fixed on the fixed seat through a screw, an elastic gasket is arranged between the screw and the valve cap, and a V-shaped gasket group in a compressed state is arranged between the valve cap and the annular part; the valve rod seal reinforced ball valve of the utility model has the advantages that the elastic gasket ensures that the valve cap continuously presses the valve rod downwards; be equipped with the V-arrangement packing ring group that is in compression state between valve cap and the annular portion and guarantee when sealed effect, continuously push down the valve rod and provide pressure for first sealed the effect that seals that provides well.
Description
Technical Field
The utility model belongs to ball valve structure field, concretely relates to valve rod seal strenghthened type ball valve.
Background
The seven valves of the prior gate valve, stop valve, plunger valve, butterfly valve, plug valve, diaphragm valve and ball valve account for more than 80 percent of the total valve. The ball valve has the advantages of small fluid resistance, no restriction on flow direction, quick opening and closing, low height and the like, and has better comprehensive performance.
In the ball valve, the fixing and waterproofing of the valve stem are relatively complicated. A plurality of fasteners are required to attach the valve stem to the valve body and to the valve ball. The waterproof sealing effect between the valve rod and the valve body is particularly important, and multiple waterproof arrangements can be arranged in the connecting structure of the valve rod.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the technical problem who exists among the above-mentioned background art, providing a valve rod seal strenghthened type ball valve.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
the utility model provides a valve rod seal strenghthened type ball valve, includes valve body, valve ball, disk seat, seal structure, first sealed pad, valve rod, valve cap, second sealed pad, screw, elastic gasket and V-arrangement packing ring group.
The valve seat is detachably connected with the two ends of the valve body in common modes such as flange connection and the like, the valve ball is fixed in the valve body through the valve seat, and a sealing structure is arranged at the matching position of the valve seat and the valve ball.
The upper portion of valve body is the fixing base, the fixing base middle part is cylindrical passageway, the valve rod passes the fixing base is connected with the valve ball.
The valve ball comprises an upper plane, a lower plane and a middle runner, wherein a groove position matched with the valve rod is arranged on the upper plane, and a groove hole is formed in the lower plane; the valve ball fixing structure penetrates from the lower part of the valve body to be matched with the slotted hole.
The upper surface and the lower surface in the valve body are provided with platforms; the upper plane and the lower plane of the valve ball fixed in the valve body are respectively matched with the height of the platform at the upper part and the height of the platform at the lower part in the valve body; the matched design is convenient for pushing the valve ball on one hand; on one hand, the structure in the valve body is more compact, the generation of disorder and smoothness is reduced, the shaking of the valve ball in the vertical direction is limited, and the risk of loosening of the screw is reduced.
The lower part of the valve rod is an annular part, the outer diameter of the annular part is consistent with the diameter of the cylindrical channel of the fixed seat, and a first sealing gasket in a compressed state is arranged between the annular part and the valve ball; there is not relative rotation between valve rod and the valve ball, first sealed pad provides the first waterproof effect of high quality.
The valve cap is fixed on the fixed seat through a screw, an elastic gasket is arranged between the screw and the valve cap, and the elastic gasket ensures that the valve cap continuously presses the valve rod; and a V-shaped gasket group in a compressed state is arranged between the valve cap and the annular part. The V-shaped gasket group continuously presses the valve rod downwards to provide pressure for the first sealing gasket to provide a good sealing effect.
Preferably, a second sealing gasket is arranged between the valve cap and the fixed seat.
Optionally, the V-shaped gasket set includes four rubber rings with V-shaped cross sections.
Optionally, the sealing structure is a plastic sealing ring component and an elastic component. The resilient member biases the plastic seal ring member toward the valve ball.
The utility model provides a valve rod seal reinforced ball valve, an elastic gasket ensures that a valve cap continuously presses a valve rod downwards; be equipped with the V-arrangement packing ring group that is in compression state between valve cap and the annular portion and guarantee when sealed effect, continuously push down the valve rod and provide pressure for first sealed the effect that seals that provides well.
Drawings
FIG. 1 is a schematic view (longitudinal section) of the valve rod seal reinforced ball valve of the present invention;
FIG. 2 is a partial schematic view of the valve stem of the present invention;
reference numerals: the valve comprises a valve body (1), a fixing seat (101), a platform (102), a valve ball (2), a valve seat (3), a sealing structure (4), a first sealing gasket (5), a valve rod (6), a valve cap (7), a second sealing gasket (8), a screw (9), an elastic gasket (10) and a V-shaped gasket group (11).
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, a valve rod seal reinforced ball valve comprises a valve body 1, a valve ball 2, a valve seat 3, a seal structure 4, a first seal gasket 5, a valve rod 6, a valve cap 7, a second seal gasket 8, a screw 9, an elastic gasket 10 and a V-shaped gasket group 11.
The two ends of the valve body 1 are connected with the valve seat 3 in a detachable mode through flanges, the valve ball 2 is fixed in the valve body 1 through the valve seat 3, and the sealing structure 4 is arranged at the matching position of the valve seat 3 and the valve ball 2.
The upper portion of valve body 1 is fixing base 101, fixing base 101 middle part is cylindrical passageway, valve rod 6 passes fixing base 101 is connected with valve ball 2.
The valve ball 2 comprises an upper plane (not shown), a lower plane (not shown) and a middle runner (not shown), wherein a groove position (not shown) matched with the valve rod is arranged on the upper plane, and a slotted hole (not shown) is arranged on the lower plane; a ball fixing structure (not shown) penetrates from the lower part of the valve body 1 to be matched with the slotted hole.
The upper surface and the lower surface in the valve body 1 are both provided with a platform 102; the upper plane (not shown) and the lower plane (not shown) of the valve ball 2 fixed in the valve body 1 are respectively matched with the height of the upper platform 102 and the lower platform 102 in the valve body 1; the matched design facilitates the pushing-in of the valve ball 2 on one hand; on one hand, the structure in the valve body 1 is more compact, the generation of disorder and smoothness is reduced, and the shaking of the valve ball 2 in the vertical direction is limited.
The lower part of the valve rod 6 is an annular part (not shown), the outer diameter of the annular part is consistent with the diameter of the cylindrical channel of the fixed seat 101, and a first sealing gasket 5 in a compressed state is arranged between the annular part and the valve ball 2; the valve rod 6 and the valve ball 2 do not rotate relatively, and the first sealing gasket 5 provides a good first waterproof effect.
The valve cap 7 is fixed on the fixing seat 101 through a screw 9, an elastic gasket 10 is arranged between the screw 9 and the valve cap 7, and the elastic gasket 10 ensures that the valve cap 7 continuously presses the valve rod 6; a V-shaped gasket set 11 in a compressed state is arranged between the bonnet 7 and the annular part. The V-shaped gasket set 11 comprises four rubber rings with V-shaped sections.
In a specific implementation, a second sealing gasket 8 is arranged between the bonnet 7 and the fixing seat 101.
In a specific implementation, the sealing structure 4 is a plastic sealing ring component and an elastic component. The resilient member presses the plastic sealing ring member against the valve ball 2.
The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The embodiment is only a single implementation manner of the present invention, and for those skilled in the art, other embodiments can be obtained according to the attached drawings without any creative effort, and are also within the protection scope of the present invention.
Claims (4)
1. The utility model provides a valve rod seal strenghthened type ball valve which characterized in that: the valve comprises a valve body, a valve ball, a valve seat, a sealing structure, a first sealing gasket, a valve rod, a valve cap, a second sealing gasket, a screw, an elastic gasket and a V-shaped gasket group;
the two ends of the valve body are detachably connected with valve seats, the valve seats fix the valve ball in the valve body, and sealing structures are arranged at the matching positions of the valve seats and the valve ball;
the upper part of the valve body is provided with a fixed seat, the middle part of the fixed seat is provided with a cylindrical channel, and the valve rod penetrates through the fixed seat and is connected with the valve ball;
the valve ball comprises an upper plane, a lower plane and a middle flow passage,
the upper surface and the lower surface in the valve body are provided with platforms; the upper plane and the lower plane of the valve ball fixed in the valve body are respectively matched with the height of the platform at the upper part and the height of the platform at the lower part in the valve body;
the lower part of the valve rod is an annular part, the outer diameter of the annular part is consistent with the diameter of the cylindrical channel of the fixed seat, and a first sealing gasket in a compressed state is arranged between the annular part and the valve ball;
the valve cap is fixed on the fixing seat through a screw, an elastic gasket is arranged between the screw and the valve cap, and a V-shaped gasket group in a compression state is arranged between the valve cap and the annular part.
2. The valve stem seal enhanced ball valve of claim 1, wherein a second gasket is disposed between the bonnet and the anchor block.
3. The stem seal reinforced ball valve of claim 1, wherein the set of V-shaped gaskets comprises four V-shaped cross-section rubber rings.
4. The valve stem seal-enhanced ball valve of claim 1, wherein the sealing structure is a plastic sealing ring member and an elastic member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021069798.2U CN212480205U (en) | 2020-06-11 | 2020-06-11 | Valve rod seal reinforced ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021069798.2U CN212480205U (en) | 2020-06-11 | 2020-06-11 | Valve rod seal reinforced ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212480205U true CN212480205U (en) | 2021-02-05 |
Family
ID=74417364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021069798.2U Active CN212480205U (en) | 2020-06-11 | 2020-06-11 | Valve rod seal reinforced ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212480205U (en) |
-
2020
- 2020-06-11 CN CN202021069798.2U patent/CN212480205U/en active Active
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