CN2895720Y - Floating-dog gloating-shoe core-body - Google Patents
Floating-dog gloating-shoe core-body Download PDFInfo
- Publication number
- CN2895720Y CN2895720Y CN 200620021043 CN200620021043U CN2895720Y CN 2895720 Y CN2895720 Y CN 2895720Y CN 200620021043 CN200620021043 CN 200620021043 CN 200620021043 U CN200620021043 U CN 200620021043U CN 2895720 Y CN2895720 Y CN 2895720Y
- Authority
- CN
- China
- Prior art keywords
- hole
- valve seat
- valve
- spring
- valve spool
- 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
Links
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model relates to a floating-dog gloating-shoe core-body, including a valve base (1), a holding ring (2), a valve spool (3), a spring (4). The valve base (1) is a bugle-shape barrel, with a central hole transits from a big one to a smaller one to form a valve spool ball-head seat (11); the holding ring (2) is a bugle-shape body with a longitudinal through hole (21) in the middle section and with a through hole (22) provided between the middle through hole (21) and the outside wall; the valve spool (3) consists of a valve spool rod (31) and a ball head (32) arranged at one end of the valve spool rod, a rubber sealing layer is arranged outside the ball head (32); a spring (4) is suited around the valve spool rod (31), the end of the ball head (31) is inserted into the middle through the hole (21) of the holding ring, one end of the spring (4) presses on the outside edge of the middle through hole (21) of the holding ring, the other end presses on the ball dead (32), the valve base (1) and the holding ring (2) are joined together through threads, the ball head (32) presses on the valve spool ball seat (11) in the valve base (1). The utility model has the advantages of corrosion proof, good sealing performance, easy drilling off after using, no influence on the speed of well drilling.
Description
Technical field
The utility model relates to the oil drilling accessory.
Background technology
The float collar float shoe is to be used to the device of cementing the well in the oil drilling, and float collar float shoe core body is the critical piece of float collar float shoe, and existing float collar float shoe core body is not corrosion-resistant, and its poor sealing is difficult for brill with the back and removes, and influences drillng operation speed.
Summary of the invention
The purpose of this utility model provides a kind of corrosion-resistant, good airproof performance, easily bores the float collar float shoe core body that removes, do not influence drillng operation speed with the back.
Technical solution of the present utility model is: it by valve seat, accept ring, spool and spring and constitute, valve seat is horn-like cylindrical body, the descending angled transition of its mesopore forms the spool ball cup, valve seat horn mouth place is provided with screw thread; Accept ring and vertically being provided with through hole for the middle part, vertically be provided with the horn-like body of through hole between middle part through hole and the outer wall, its horn mouth place is provided with the screw thread that can spin mutually with valve seat mouth screw thread; Spool is made of valve core rod and the bulb of being located at the one end, and its bulb external surface is provided with rubber sealant; Spring housing is on valve core rod, and the valve core rod end is through accepts in the through hole of ring middle part, and spring one end is pressed in to be accepted on the through hole outer, ring middle part, and the other end is pressed on the bulb, valve seat with accept ring and spin by screw thread and be that one, bulb are pressed on the valve seat inner spool ball cup.
Technique effect of the present utility model is: it has corrosion-resistant, good airproof performance, easily bores the advantage of removing, not influencing drillng operation speed with the back.
Description of drawings
Accompanying drawing is the utility model embodiment sectional view.
The specific embodiment
As shown in the figure, it by valve seat 1, accept ring 2, spool 3 and spring 4 constitute, valve seat 1 be horn-like cylindrical body, the descending angled transition formation of its mesopore spool ball cup 11, valve seat 1 horn mouth place is provided with screw thread 12; Accept ring 2 and vertically be provided with through hole 21 for the middle part, vertically be provided with the horn-like body of through hole 22 between middle part through hole 21 and the outer wall, its horn mouth place is provided with the screw thread 23 that can spin mutually with valve seat mouth screw thread 12; Spool 3 is made of valve core rod 31 and the bulb 32 of being located at the one end, and its bulb 32 external surfaces are provided with rubber sealant 33; Spring 4 is enclosed within on the valve core rod 31, valve core rod 31 ends are through accepts in the through hole 21 of ring middle part, spring 4 one ends are pressed in to be accepted on through hole 21 outers, ring middle part, the other end is pressed on the bulb 32, valve seat 1 with accept ring 2 and spin by screw thread 12,23 and be that one, bulb 32 are pressed on the valve seat 1 inner spool ball cup 11.The limit portion that contacts with spool ball cup 11 on the rubber sealant 33 is provided with annular sealing strip 34.
Valve seat, accept ring and the material of spool is engineering plastics.
Claims (2)
1, float collar float shoe core body, it by valve seat (1), accept ring (2), spool (3) and spring (4) constitutes, it is characterized in that: valve seat (1) is horn-like cylindrical body, and the descending angled transition of its mesopore forms spool ball cup (11), and valve seat (1) horn mouth place is provided with screw thread (12); Accept ring (2) and vertically be provided with through hole (21) for the middle part, vertically be provided with the horn-like body of through hole (22) between middle part through hole (21) and the outer wall, its horn mouth place is provided with the screw thread (23) that can spin mutually with valve seat mouth screw thread (12); Spool (3) is made of valve core rod (31) and the bulb (32) of being located at the one end, and its bulb (32) external surface is provided with rubber sealant (33); Spring (4) is enclosed within on the valve core rod (31), valve core rod (31) end is through accepts in the ring middle part through hole (21), spring (4) one ends are pressed in to be accepted on through hole (21) outer, ring middle part, the other end is pressed on the bulb (32), valve seat (1) spins by screw thread (12), (23) and is one with accepting ring (2), and bulb (32) is pressed on valve seat (1) the inner spool ball cup (11).
2, float collar float shoe core body as claimed in claim 1 is characterized in that the last limit portion that contacts with spool ball cup (11) of described rubber sealant (33) is provided with annular sealing strip (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021043 CN2895720Y (en) | 2006-06-15 | 2006-06-15 | Floating-dog gloating-shoe core-body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021043 CN2895720Y (en) | 2006-06-15 | 2006-06-15 | Floating-dog gloating-shoe core-body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895720Y true CN2895720Y (en) | 2007-05-02 |
Family
ID=38065299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620021043 Expired - Fee Related CN2895720Y (en) | 2006-06-15 | 2006-06-15 | Floating-dog gloating-shoe core-body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895720Y (en) |
-
2006
- 2006-06-15 CN CN 200620021043 patent/CN2895720Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070502 Termination date: 20100615 |