CN2085894U - Full-enclosed concealed-rod type valve series - Google Patents
Full-enclosed concealed-rod type valve series Download PDFInfo
- Publication number
- CN2085894U CN2085894U CN 90222017 CN90222017U CN2085894U CN 2085894 U CN2085894 U CN 2085894U CN 90222017 CN90222017 CN 90222017 CN 90222017 U CN90222017 U CN 90222017U CN 2085894 U CN2085894 U CN 2085894U
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- China
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- valve
- valve rod
- rod
- enclosed
- valves
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Abstract
The utility model relates to a full-enclosed concealed-rod type valve series which is mainly suitable for high, middle and low pressure delivery conduits for liquids of oil, gas, water, etc., and various valves such as stop valves, gate valves, ball valves, etc., of different specifications of various storage vessels. The utility model provides a valve series which is characterized in that valve rods are inserted from below from the inner of valve covers and two end surfaces between the valve rods and the valve covers are fully enclosed, attached and sealed. Rolling steel balls are used for replacing a packing and a sealing gasket and most part of a lower valve rod is screwed in upper valve rod holes or flashboard holes. The utility model has simpler and compact structure, small height and dimension, strong wearability, difficult outflow, labour-saving opening and closing, convenient use and high safety.
Description
The utility model is a kind of totally-enclosed blind rod type series of valves, is applicable to the vary in size various valves such as stop valve, gate valve, ball valve of specification of oil, gas, water or other fluid high, medium and low voltage conveyance conduit and all kinds of storage container.
At present, various valves such as the used stop valve of the conveyance conduit of oil, gas, water or other fluid and all kinds of storage container, gate valve, ball valve, its valve rod mostly is a straight-through type, be to compress sealing between valve rod and the valve gap with packing and seal washer, structure is complicated, and wearing and tearing leak easily, the switch effort, and height dimension is big.
The purpose of this utility model provides a kind of totally-enclosed blind rod type valve, and its structure is simpler, be difficult for leaking, and also wear-resistant, switch is laborsaving, and height dimension is little, and is safe and reliable.
The utility model is to realize like this, its valve rod is divided into upper valve rod and lower valve rod two-part, there is the projection of one section straight warp greater than valve rod the upper valve rod lower end, upper valve rod is by inserting from bottom to top in the valve gap, sealing between valve rod and the valve gap is exactly by the upper-end surface of its projection and the applying sealing of the lower end surface around the valve gap inner valve stem hole, hydrodynamic pressure is big more like this, and both ends of the surface are fitted tight more, more are difficult for leaking; Next is that upper-end surface around in valve gap inner valve stem hole has replaced packing and seal washer with rolling steel ball, and the frictional resistance when having reduced rotary valve rod (can add bulking agent and reduce friction) has also reduced the height of valve bonnet seal structure; Be to be upper end closed and female circular hole in the upper valve rod again, the lower valve rod upper end has screw thread to be connected with it, and when Open valve rotation upper valve rod, lower valve rod rises, and its major part is threaded in the upper valve rod, has also reduced the volume of valve pocket and the height of valve body.
Structure of the present utility model such as accompanying drawing, overall diagram in the accompanying drawing is the sectional view of Plane stop valve, and it is made up of upper valve rod (8), lower valve rod (6), upper stem seal packing ring (9), valve bonnet seal packing ring (7), rolling steel ball (10), steel ball hold-down ring (11), gland nut (12), handle (1), bonnet cap (2), valve gap (3), valve body (4), flap parts such as (5).
Describe the details and the working principle of concrete device of the present utility model in detail below in conjunction with accompanying drawing.
There is one section threaded circular cylinder the upper end of lower valve rod (6), and remaining part is square cylinder, and the valve bonnet seal packing ring is a square hole in (7), is that restriction lower valve rod (6) only moves up and down.Tapered stop valve, gate valve, ball valve except that flap with valve body structure is different, its totally-enclosed blind rod type sealing configuration part is all identical with Plane stop valve.The flashboard of gate valve does not rotate, and its lower valve rod can all adopt cylindrical body, and in order to reduce the height of valve body, the flashboard of gate valve and valve rod can adopt the structure of valve rod in the accompanying drawing (13) and flashboard (14).Ball valve just adopts valve rod and the totally-enclosed sealing configuration of valve gap on original valve body.The valve gap of big latus rectum valve can adopt bolt to be connected with valve body.
Working principle is pulled handle (1) and is made the rotation of upper valve rod (8) clockwise direction, and the lower valve rod (6) or the flashboard (14) that are connecting flap (5) move up, and ball valve is only done the circumference rotation, valve opening, and fluid passes through; Pull handle (1) and make upper valve rod (8) rotation counterclockwise, the lower valve rod (6) or the flashboard that are connecting flap move down, valve closing, and fluid ends.As adapting to people's switch custom, only need that the screw thread of upper valve rod (8) and lower valve rod (6) or flashboard (14) is made left-hand thread and get final product.
Enforcement of the present utility model, can reduce leaking in FLUID TRANSPORTATION and the storage, help energy-conservation throttling, for inflammable gas, can also reduce its pollution to environment, particularly reduce, help ensureing the safety of people's lives and properties owing to the blast, fire and the human casualty accident that leak and to cause.
Claims (2)
1, a kind of series of valves that adopts totally-enclosed blind rod type sealing configuration is characterized in that:
A. valve rod divides upper valve rod (8) and lower valve rod (6) two-part, there is one section projecting surface greater than stem diameter upper valve rod (8) lower end, upper valve rod (8) is by inserting from bottom to top in the valve rod hole in the valve gap (3), lower end surface around the valve rod hole in the upper-end surface of its projecting surface and the valve gap (3) is totally-enclosed is close to sealing, and upper stem seal packing ring (9) is arranged between two end faces of being close to.
B. be the female circular hole of upper end closed in the upper valve rod (8), there is the screw thread that is connected with the circular hole of upper valve rod (8) lower valve rod (6) upper end.
C. in gate valve, upper valve rod and lower valve rod are an integral body (13), and flashboard (14) center is female circular hole, and the screw thread of its lower valve rod is connected with the internal thread of flashboard (14) center hole.
2, series of valves according to claim 1 is characterized in that there is rolling steel ball (10) upper-end surface around valve gap (3) the inner valve stem hole, is compressed by ball hold-down ring (11) and gland nut (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90222017 CN2085894U (en) | 1990-10-15 | 1990-10-15 | Full-enclosed concealed-rod type valve series |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90222017 CN2085894U (en) | 1990-10-15 | 1990-10-15 | Full-enclosed concealed-rod type valve series |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2085894U true CN2085894U (en) | 1991-10-02 |
Family
ID=4900040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90222017 Withdrawn CN2085894U (en) | 1990-10-15 | 1990-10-15 | Full-enclosed concealed-rod type valve series |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2085894U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982681A (en) * | 2010-11-17 | 2011-03-02 | 福建锦江科技有限公司 | Bellows stop valve |
-
1990
- 1990-10-15 CN CN 90222017 patent/CN2085894U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982681A (en) * | 2010-11-17 | 2011-03-02 | 福建锦江科技有限公司 | Bellows stop valve |
| CN101982681B (en) * | 2010-11-17 | 2013-01-23 | 福建锦江科技有限公司 | Bellows stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |