CN201180796Y - High-leak tightness valve - Google Patents
High-leak tightness valve Download PDFInfo
- Publication number
- CN201180796Y CN201180796Y CNU2008200550815U CN200820055081U CN201180796Y CN 201180796 Y CN201180796 Y CN 201180796Y CN U2008200550815 U CNU2008200550815 U CN U2008200550815U CN 200820055081 U CN200820055081 U CN 200820055081U CN 201180796 Y CN201180796 Y CN 201180796Y
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing ring
- handle
- valve stem
- seal ring
- Prior art date
- 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 - Lifetime
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Abstract
The utility model relates to the technical field of valves in a pipeline for transporting liquid, in particular to a high-sealing performance valve, which is characterized in that a handle is in threaded connection with a valve cap, the handle is connected with the valve via a snap spring and slidingly matched with the valve, a sealing ring is arranged in the threaded joint position of the valve cap and the valve body, a groove is formed on the inner side of the valve cap, an O-shaped sealing ring is arranged between the interior of the groove of the valve cap and the middle part of the valve stem, the valve spool at the lower part of a valve stem is processed into an inverted umbrella shape, a spigot sealing ring is arranged at a water gate at the lower part of the valve body, and when being completely lifted, the inverted umbrella shaped valve stem is in surface contact with the spigot sealing ring. The valve has the advantages that by adopting the structure, the valve stem vertically slides when being opened or closed, so as to reduce the friction with sealing material; and when the valve is closed and the valve stem is completely lifted, the round contact surface of the water gate sealing ring and the inverted umbrella shaped valve stem is compressed under the pressure inside the flow passage, and the higher the hydraulic pressure is, the better the sealing effect is. Therefore, the closing and opening operations are labor-saving, and the service life of the valve is long.
Description
[technical field]
The utility model relates to the valve technology field in the pipeline of carrying liquid, specifically a kind of high leak tightness valve.
[background technique]
Will use the valve of a large amount of various sizes in carrying the pipeline of liquid, existing valve exists mostly that medium lets out and screw thread contacts with medium and is subjected to etching problem from spool.Rotation owing to valve rubs the seal point of valve rod and valve body in addition, produces problems such as rotation friction with sealing material.Existing in addition valve body is generally chosen and is used metallic material manufacturing, stuffing box packing and screw thread to be prone to phenomenons such as the sliding embroidery of wearing and tearing erosion.
[summary of the invention]
The purpose of this utility model is the shortcomings and deficiencies that overcome conventional valves, provides a kind of simple in structure, good seal performance, and various sealing part abrasions are little, the high leak tightness valve of long service life.
The utility model is to realize like this, include the valve body of an import water channel and a water outlet passage, valve rod, handle, gland and seal ring etc., valve rod inserts in the valve body, it is characterized in that handle and valve gap are by being threaded, handle is connected by jump ring with valve rod, and be slidingly matched, be provided with seal ring at valve gap and valve body threaded connection place, have a groove in the inboard of valve gap, in the groove of the valve gap that the O RunddichtringO is established and between the valve rod middle part, the spool of stem lower portion is processed into " umbrella shape ", sluice gate place in valve body lower portion is provided with the seam seal ring, and " umbrella shape " is face with the seam seal ring when valve rod lifts fully and contacts.
The utility model has the advantages that: owing to adopted said structure, valve rod vertically slides when opening or closing, reduced friction with sealing material, when valve is in the closed condition valve rod and lifts fully, pressure in the runner compresses sluice gate seal ring and the disc of " umbrella shape " valve rod, and hydraulic pressure is big more, and sealing effect is good more, opening and closing are more laborsaving, long service life.
[description of drawings]
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of valve rod of the present utility model.
[specific embodiment]
Below in conjunction with the drawings and specific embodiments the utility model is described in detail:
As shown in Figure 1, the utility model includes the valve body 7 of a water inlet passageway and a water outlet passage, valve rod 4, handle 2, gland 3 and seal ring etc., valve rod 4 inserts in the valve body 7, handle 2 and valve gap 3 are by being threaded, handle 2 is connected by jump ring 1 with valve rod 4, and be slidingly matched, be provided with seal ring 5 in valve gap 3 and valve body 7 threaded connection places, its seal ring generally adopts rubber ring, have a groove in the inboard of valve gap 3, between in the groove of the valve gap 3 that O RunddichtringO 6 is established and valve rod 4 middle parts, its O RunddichtringO is with the sealing of being separated by of valve rod upper and lower end.The effect of jump ring 1 is the fixing moving direction of valve rod, can only move up and down, and can not rotate, thereby significantly reduce valve rod and Sealing friction.The spool 9 of valve rod of the present utility model 4 bottoms is processed into " umbrella shape ", is provided with seam seal ring 8 at the sluice gate place of valve body 7 bottoms, and " umbrella shape " is face with seam seal ring 8 when valve rod lifts fully and contacts.When valve is in when closing, the pressure in the runner compresses sluice gate seal ring 8 and the disc of " fall umbrella shape " valve rod, and hydraulic pressure is big more, and sealing effect is good more, and valve can never leak, and has prolonged the working life of valve effectively.When using the utility model, as long as this valve is installed on the pipeline, turn lifting handle, the drive valve rod slides up and down in valve body and can open or throttle down.
Claims (1)
1, a kind of high leak tightness valve, include the valve body of a water inlet passageway and a water outlet passage, valve rod, handle, gland and seal ring etc., valve rod inserts in the valve body, it is characterized in that handle and valve gap are by being threaded, handle is connected by jump ring with valve, and be slidingly matched, be provided with seal ring at valve gap and valve body threaded connection place, have a groove in the inboard of valve gap, in the groove of the valve gap that the O RunddichtringO is established and between the valve rod middle part, the spool of stem lower portion is processed into " umbrella shape ", sluice gate place in valve body lower portion is provided with the seam seal ring, and " umbrella shape " is face with the seam seal ring when valve rod lifts fully and contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550815U CN201180796Y (en) | 2008-01-25 | 2008-01-25 | High-leak tightness valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550815U CN201180796Y (en) | 2008-01-25 | 2008-01-25 | High-leak tightness valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180796Y true CN201180796Y (en) | 2009-01-14 |
Family
ID=40250295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200550815U Expired - Lifetime CN201180796Y (en) | 2008-01-25 | 2008-01-25 | High-leak tightness valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180796Y (en) |
-
2008
- 2008-01-25 CN CNU2008200550815U patent/CN201180796Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |