CN203640682U - Detachable check valve - Google Patents
Detachable check valve Download PDFInfo
- Publication number
- CN203640682U CN203640682U CN201320848444.1U CN201320848444U CN203640682U CN 203640682 U CN203640682 U CN 203640682U CN 201320848444 U CN201320848444 U CN 201320848444U CN 203640682 U CN203640682 U CN 203640682U
- Authority
- CN
- China
- Prior art keywords
- hole
- housing
- piston
- piston rod
- end cap
- 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 - Fee Related
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Abstract
A detachable check valve comprises a valve body, a valve core and an end cap, wherein the valve body is provided with a first through hole and a second through hole communicated with the first through hole, the end cap is arranged on the upper end face of the first through hole, the valve core is arranged in the first through hole, and the valve core comprises a hollow housing, a piston arranged in the housing, a piston rod arranged on the top of the piston, and a spring arranged between the piston and the top of the housing. The other end of the piston rod is inserted in the top of the housing, and the spring is inserted in the piston rod. A third through hole is arranged on the side edge of the housing and is communicated with the second through hole. The detachable check valve is simple in structure and convenient for use, can be maintained and replaced directly on a workstation, substantially reduces maintenance work, saves time and manpower, and improves production efficiency of an oil well.
Description
Technical field
The utility model relates to a kind of ball-and-seat, relates in particular to a kind of detachable ball-and-seat.
Background technology
Ball-and-seat is as requisite device in oil filed pipeline, can prevent that liquid from flowing backwards, guarantee oil transportation safety, there is following problem in the conventional ball-and-seat in oil field at present, ball-and-seat is arranged on pipeline by flange as a whole, but because crude oil the inside has a lot of impurity can stick to ball-and-seat valve inner, this just causes ball-and-seat cisco unity malfunction, ball-and-seat entirety need to be disassembled to cleaning valve inner impurity from pipeline, could continue to use.Maintenance load is just very large like this, and dismounting and installation all consume a lot of time and manpower.Thereby affect the production of oil well, produce economic loss.
Utility model content
The purpose of this utility model is: a kind of ball-and-seat simple in structure, easy to use is provided, can directly on working position, cleans and keep in repair, greatly reduced the workload of cleaning and keeping in repair, time and manpower is saved, improves the production efficiency of oil well.
To achieve these goals, the technical solution of the utility model is:
A kind of detachable ball-and-seat, comprises valve body, spool and end cap; Described valve body is provided with the first through hole and the second through hole; Described the first through hole and the second through hole are connected; Described end cap is arranged on described the first through hole upper surface; Described spool is arranged in described the first through hole; Described spool comprises described housing, piston rod, piston and spring; Described housing is hollow structure, and inside arranges described piston; Described piston tip is provided with described piston rod; The described piston rod other end is arranged in described housing top; Described spring is set between described piston and case top; Described spring is arranged in described piston rod; Described housing side is provided with third through-hole; Described third through-hole and the second through hole are connected.
Further, described the first through hole top arranges the first flange; Described the first through hole bottom arranges the second flange; Described end cap is connected with described the first flange by bolt; Between described end cap and the first end face of flange, be provided with sealing mat.
Further, described the first via bottoms arranges boss, between described spool bottom and boss, sealing ring is set.
The utility model is owing to having adopted above-mentioned technology, the good effect that makes it compared with prior art to have is: the utility model is owing in the first through hole of valve body, spool being set, only end cap need be unloaded down, without whole ball-and-seat is disassembled from pipeline, can conveniently spool be taken out in valve body, carry out maintain and replace work; The utility model is owing to being provided with the second through hole being connected with the first through hole, and oil enters from the bottom of the first through hole, then exports from the other end of the second through hole; The utility model is owing to being provided with piston and spring, and be provided with the third through-hole being connected with the second through hole at the side of housing, when oil has while entering from the bottom of the first through hole, by spring jack-up, enter the second through hole by third through-hole immediately, by oil transportation to output channel.The utility model is owing to being provided with boss in the first via bottoms, and and spool bottom between be also provided with sealing ring, to reach the effect of sealing, avoid leaking.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model detachable ball-and-seat.
The specific embodiment
Further illustrate embodiment of the present utility model below in conjunction with accompanying drawing.
Shown in Figure 1, a kind of detachable ball-and-seat, is characterized in that: comprise valve body 1, spool 2 and end cap 3; Described valve body 1 is provided with the first through hole 11 and the second through hole 12; Described the first through hole 11 and the second through hole 12 are connected; Described end cap 3 is arranged on described the first through hole 11 upper surfaces; Described spool 2 is arranged in described the first through hole 11; Described spool 2 comprises described housing 21, piston rod 22, piston 23 and spring 24; Described housing 21 is hollow structures, and inside arranges described piston 23; Described piston 23 tops are provided with described piston rod 22; Described piston rod 22 other ends are arranged in described housing 21 tops; Between described piston 23 and housing 21 tops, described spring 24 is set; Described spring 24 is arranged in described piston rod 22; Described housing 21 sides are provided with third through-hole 25; Described third through-hole 25 and the second through hole 12 are connected, due to the interior spool 2 that arranges of the first through hole 11 at valve body 1, only end cap 3 need be unloaded down, without whole ball-and-seat is disassembled from pipeline, can be conveniently by spool 2 from the interior taking-up of valve body 1, carry out maintain and replace work; Owing to being provided with the second through hole 12 being connected with the first through hole 11, oil enters from the bottom of the first through hole 11, then exports from the other end of the second through hole 12; The utility model is owing to being provided with piston 23 and spring 24, and be provided with the third through-hole 25 being connected with the second through hole 12 at the side of housing, when oil has while entering from the bottom of the first through hole 11, by spring jack-up, enter the second through hole 12 by third through-hole 25 immediately, then by oil transportation to output channel.
Preferably, described the first through hole 11 tops arrange the first flange 111; Described the first through hole 11 bottoms arrange the second flange 112; Described end cap 3 is connected with described the first flange 111 by bolt; Between described end cap 3 and the first end face of flange, be provided with sealing mat 4, connect convenient dismounting and change spool 2 by flange.
Preferably, described the first through hole 11 bottoms arrange boss 113, between described spool 2 bottoms and boss 113, sealing ring 5 are set, and can avoid oil from the clearance leakage between valve body 1 and spool 2, play sealing effectiveness.
In sum, the utility model is simple in structure, easy to use, can directly on working position, clean and keep in repair, and has greatly reduced the workload of cleaning and keeping in repair, and time and manpower is saved, improves the production efficiency of oil well.
Claims (3)
1. a detachable ball-and-seat, is characterized in that: comprise valve body (1), spool (2) and end cap (3); Described valve body (1) is provided with the first through hole (11) and the second through hole (12); Described the first through hole (11) and the second through hole (12) are connected; Described end cap (3) is arranged on described the first through hole (11) upper surface; Described spool (2) is arranged in described the first through hole (11); Described spool (2) comprises described housing (21), piston rod (22), piston (23) and spring (24); Described housing (21) is hollow structure, and inside arranges described piston (23); Described piston (23) top is provided with described piston rod (22); Described piston rod (22) other end is arranged in described housing (21) top; Between described piston (23) and housing (21) top, described spring (24) is set; Described spring (24) is arranged in described piston rod (22); Described housing (21) side is provided with third through-hole (25); Described third through-hole (25) and the second through hole (12) are connected.
2. detachable ball-and-seat according to claim 1, is characterized in that: described the first through hole (11) top arranges the first flange (111); Described the first through hole (11) bottom arranges the second flange (112); Described end cap (3) is connected with described the first flange (111) by bolt; Between described end cap (3) and the first flange (111) end face, be provided with sealing mat (4).
3. detachable ball-and-seat according to claim 1, is characterized in that: described the first through hole (11) bottom arranges boss (113), between described spool (2) bottom and boss (113), sealing ring (5) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848444.1U CN203640682U (en) | 2013-12-20 | 2013-12-20 | Detachable check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848444.1U CN203640682U (en) | 2013-12-20 | 2013-12-20 | Detachable check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640682U true CN203640682U (en) | 2014-06-11 |
Family
ID=50871937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320848444.1U Expired - Fee Related CN203640682U (en) | 2013-12-20 | 2013-12-20 | Detachable check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203640682U (en) |
-
2013
- 2013-12-20 CN CN201320848444.1U patent/CN203640682U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20141220 |
|
| EXPY | Termination of patent right or utility model |