CN204042036U - " H " type two-way counterbalance valve - Google Patents
" H " type two-way counterbalance valve Download PDFInfo
- Publication number
- CN204042036U CN204042036U CN201420472291.XU CN201420472291U CN204042036U CN 204042036 U CN204042036 U CN 204042036U CN 201420472291 U CN201420472291 U CN 201420472291U CN 204042036 U CN204042036 U CN 204042036U
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- China
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- spool
- back pressure
- pressure valve
- valve
- type
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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.)
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Abstract
The utility model discloses " H " type two-way counterbalance valve, this back pressure valve comprises back pressure valve body (1), spool (2) and spool pressure cap (3), spool (2) to be arranged in back pressure valve body (1) through spool pressure cap (3) and to be fixed by cone end Cock screw (4), it is characterized in that: described spool (2) establishes oval valve ball (6) entirety to form, the outer wall of oval valve ball (6) establishes seal groove (7), seal groove (7) interior vulcanised rubber layer (8).The utility model solves the sealing problem of back pressure valve, improves the working life of back pressure valve.
Description
Technical field
The utility model relates to valve, is specifically related to one " H " type two-way counterbalance valve.
Background technique
At present, the spool of back pressure valve is all adopt the sealing of " O " RunddichtringO, is all very easy to damage in installation and using process.
Summary of the invention
The purpose of this utility model is: provide a kind of " H " type two-way counterbalance valve, solve the sealing problem of back pressure valve, improve the working life of back pressure valve.
Technical solution of the present utility model is: this back pressure valve comprises back pressure valve body, spool and spool pressure cap, spool to be arranged in back pressure valve body through spool pressure cap and to be fixed by cone end Cock screw, it is characterized in that: described spool establishes oval valve ball entirety to form, the outer wall of oval valve ball establishes seal groove, vulcanised rubber layer in seal groove.
Wherein, the outer wall of back pressure valve body installs square seal ring.
The utility model has the advantages that: 1, this back pressure valve bi-directional configuration, can intercept the pressure from down-hole, also can intercept from aboveground pressure;
2, spool adopts overall structure, and the "O"-ring that be instead of in the past by vulcanised rubber layer seals, and improves working life; 3, back pressure valve is outside seals the square seal ring adopted, good seal performance with tubing hanger, and is not easy to damage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the spool schematic diagram of Fig. 1.
In figure: 1 back pressure valve body, 2 spools, 3 spool pressure caps, 4 cone end Cock screws, 5 insert body, 6 oval valve balls, 7 seal grooves, 8 rubber layers, 9 square seal rings.
Embodiment
As shown in Figure 1, 2, this back pressure valve comprises back pressure valve body 1, spool 2 and spool pressure cap 3, spool 2 to be arranged in back pressure valve body 1 through spool pressure cap 3 and to be fixed by cone end Cock screw 4, it is characterized in that: described spool 2 establishes oval valve ball 6 entirety to form, the outer wall of oval valve ball 6 establishes seal groove 7, vulcanised rubber layer 8 in seal groove 7.
Wherein, the outer wall of back pressure valve body 1 installs square seal ring 9.
Claims (2)
1. " H " type two-way counterbalance valve, this back pressure valve comprises back pressure valve body (1), spool (2) and spool pressure cap (3), spool (2) to be arranged in back pressure valve body (1) through spool pressure cap (3) and to be fixed by cone end Cock screw (4), it is characterized in that: described spool (2) establishes oval valve ball (6) entirety to form, the outer wall of oval valve ball (6) establishes seal groove (7), seal groove (7) interior vulcanised rubber layer (8).
2. " H " type two-way counterbalance valve according to claim 1, is characterized in that: on the outer wall of back pressure valve body (1), install square seal ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420472291.XU CN204042036U (en) | 2014-08-21 | 2014-08-21 | " H " type two-way counterbalance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420472291.XU CN204042036U (en) | 2014-08-21 | 2014-08-21 | " H " type two-way counterbalance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204042036U true CN204042036U (en) | 2014-12-24 |
Family
ID=52242704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420472291.XU Active CN204042036U (en) | 2014-08-21 | 2014-08-21 | " H " type two-way counterbalance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204042036U (en) |
-
2014
- 2014-08-21 CN CN201420472291.XU patent/CN204042036U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |