CN201521255U - Novel anti-splash joint - Google Patents
Novel anti-splash joint Download PDFInfo
- Publication number
- CN201521255U CN201521255U CN2009201745849U CN200920174584U CN201521255U CN 201521255 U CN201521255 U CN 201521255U CN 2009201745849 U CN2009201745849 U CN 2009201745849U CN 200920174584 U CN200920174584 U CN 200920174584U CN 201521255 U CN201521255 U CN 201521255U
- Authority
- CN
- China
- Prior art keywords
- seal head
- piston bush
- joint
- spring
- antispray
- 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
The utility model discloses a novel anti-splash joint, which comprises a body (1), a seal head assembly (2), a piston bush (3) and a spring (4), wherein an inner thread and an outer thread are respectively formed at the two ends of the body (1); the spring (4) is sleeved outside the piston bush (3); and a retaining ring (5) is arranged at the upper part of a seal head (21). By adopting the joint, the damaged part can be repaired or replaced after the retaining ring is detached and other parts are taken out, thereby avoiding the phenomenon that the whole connector is abandoned due to one damaged part, thereby reducing the waste and saving the use cost; and in addition, a through hole is formed on a wall of the body (1) corresponding to a seal head bracket (22), and is blocked by a plug (6), thereby achieving the in-time discharge of drilling fluid.
Description
Technical field:
The utility model relates to a kind of antispray device that is installed in the kelly bar bottom in a kind of oil and gas well drilling construction.
Background technology:
The antispray joint is that the nineties is applied to the product that oil and gas well drilling is produced, and its function is the bottom that is connected on kelly bar, creeps into the drilling fluid splash that prevents when making up a joint in kelly bar and the hose a kind of special joint to the rig floor.Along with the development of drilling well, what drilling technology and safety in production required improves constantly, the needs that original antispray joint incompatibility drilling well is produced, and reason is: original antispray joint is short application life, can not change element, is disposable, the cost height.Can not conveniently discharge the drilling fluid in kelly bar and the hose, there are hidden danger in easy freezing hose, kelly bar in the winter construction of northerly oil field.
The utility model content:
In order to solve existing technical problem in the background technology, the utility model provides can be from movable sealing, convenient row's drilling fluid, and interchangeable elements, cost is low, and security performance is strong, the novel antispray joint of long service life.
For solving the problems of the technologies described above, novel antispray joint of the present utility model, comprise that two ends are set to internal thread, externally threaded body, seal head assembly, piston bush respectively and are enclosed within the spring of piston bush outside, wherein body is the shell of antispray joint, shape is a hollow cylindrical, female end connection side's drilling rod of body, male end connect the protection joint; Seal head assembly, piston bush and the spring that is enclosed within piston bush outside are positioned at the inside of body; The seal head assembly is made up of two parts, comprises seal head and seal head support, and seal head is the column that has the pinnacle, is welded on the seal head support, and the seal head support is sitting on the boss of inner body wall; The top of seal head is provided with back-up ring, the bottom is the piston bush that packages spring, and sealing contacts with piston bush at pressure-less state lower seal head, and piston bush contacts with the inner body wall sealing, have through hole on the wall of the pairing body of seal head support, this through hole carries out shutoff with plug.
In order to observe the situation of joint internal part, preferably on the wall of the pairing body of piston bush, through hole is set in addition, and carries out shutoff with plug.
The utlity model has following beneficial effect: but this novel antispray joint is owing to being provided with the hole of discharging drilling fluid, so can realize the timely discharging of drilling fluid on body wall; Be provided with back-up ring in the body in addition, intrinsic miscellaneous part can be split out after this back-up ring dismounting, repair or replace, thereby avoid taking place because of certain parts damages phenomenon that whole joint is discarded for the parts that wherein damage, reduce waste, saved use cost.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
The sealing ring of 1-body, 2-seal head assembly, 21-seal head, 22-seal head support, 3-piston bush, 4-spring, 5-back-up ring, 6-plug, 7-sealing block, 8-sealing ring, 9-sealing ring, 10-sealing ring, 11-peep hole plug, 12-peep hole plug
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, the utility model antispray joint comprises that two ends are set to internal thread, externally threaded body 1, seal head assembly 2, piston bush 3 respectively and are enclosed within the spring 4 of piston bush 3 outsides, wherein body 1 is the shell of antispray joint, shape is a hollow cylindrical, female end connection side's drilling rod of body 1, male end connect the protection joint; Seal head assembly 2, piston bush 3 and the spring 4 that is enclosed within piston bush 3 outsides are positioned at the inside of body 1; Seal head assembly 2 is made up of two parts, comprises seal head 21 and seal head support 22, and seal head 21 is welded on the seal head support 22 for having the column on pinnacle, and seal head support 22 is sitting on the boss of body 1 inwall; The top of seal head 21 is provided with back-up ring 5, and seal head 21 is played position-limiting action; The bottom of seal head assembly 2 is the piston bush 3 that packages spring 4, contacts with body 1 inner wall sealing, and what present embodiment adopted is that sealing ring 8,10 is set on the relevant position of piston bush 3 and body 1, thereby realizes the sealing contact of the two; The bottom of seal head assembly 2 under pressure-less state with piston bush 3 be the sealing contact, present embodiment is the sealing contact that realizes the two by the mode that the bottom at seal head 21 is provided with sealing block 7, can certainly adopt other general modes that those skilled in the art will know that to carry out; On the wall of body 1, have a through hole on the wall of concrete is seal head support 22 pairing bodies 1, this through hole with plug 6 stifled on, for guaranteeing the tight of shutoff, sealing ring 9 is set at plug 6 tops.
When bringing into use, inner seal head assembly 2 is fixed, when drilling fluid reaches a constant pressure drop, spring 4 compressions after the bearing certain pressure are descending, lead piston bush 3 simultaneously descending, this moment, piston bush 3 and seal head assembly 2 formed circulation canal, after the pressure cancellation, spring 4 restores from movable sealing, by opening can drain drilling fluid in the kelly bar of plug 6; Any parts in back-up ring 5 replaceable inside of dismantling in addition.
After using a period of time, but energy product had drilling fluid because sealing ring 8 or 10 loses efficacy in the space between piston bush 3 and the body 1, with regard to form of needs body 1 inside is observed like this, judge whether to change sealing ring 8 or 10 thus, in a word for guaranteeing joint operate as normal for a long time, for the regular maintenance of joint is provided convenience, the method that present embodiment adopted is that through hole is set on the wall of piston bush 3 pairing bodies 1, block up with plug 11 during work, for guaranteeing the tight of shutoff, at the plug top sealing ring 12 is set, opens plug 11 during maintenance and observe inner case.Certainly also can adopt the mode different to observe the situation of body interior, even the situation that adopts other modes to observe body interior also falls into the application's protection domain with present embodiment.
Claims (2)
1. novel antispray joint, comprise that two ends are set to internal thread, externally threaded body (1), seal head assembly (2), piston bush (3) respectively and are enclosed within the spring (4) of piston bush (3) outside, wherein body (1) is the shell of antispray joint, shape is a hollow cylindrical, female end connection side's drilling rod of body (1), male end connect the protection joint; Seal head assembly (2), piston bush (3) and spring (4) are positioned at the inside of body (1); Seal head assembly (2) is made up of seal head (21) and seal head support (22), and seal head (21) is welded on the seal head support (22) for having the column on pinnacle, and seal head support (22) is sitting on the boss of body (1) inwall; The top of seal head (21) is provided with back-up ring (5), the bottom is for packaging the piston bush (3) of spring (4), sealing contacts with piston bush (3) at pressure-less state lower seal head (21), piston bush (3) contacts with body (1) inner wall sealing, it is characterized in that: have through hole on the wall of the pairing body of seal head support (22) (1), this through hole carries out shutoff with plug (6).
2. according to the described novel antispray joint of claim 1, it is characterized in that: on the wall of the pairing body of piston bush (3) (1), through hole is set, and carries out shutoff with plug (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201745849U CN201521255U (en) | 2009-10-20 | 2009-10-20 | Novel anti-splash joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201745849U CN201521255U (en) | 2009-10-20 | 2009-10-20 | Novel anti-splash joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521255U true CN201521255U (en) | 2010-07-07 |
Family
ID=42507431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201745849U Expired - Fee Related CN201521255U (en) | 2009-10-20 | 2009-10-20 | Novel anti-splash joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521255U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742108A (en) * | 2014-01-24 | 2014-04-23 | 中国石油化工股份有限公司 | Downhole operation well fluid balance buffering method and multifunctional buffering fluid valve |
| CN107152544A (en) * | 2017-06-05 | 2017-09-12 | 东营市创元石油机械制造有限公司 | Oil drilling oiling float valve |
-
2009
- 2009-10-20 CN CN2009201745849U patent/CN201521255U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742108A (en) * | 2014-01-24 | 2014-04-23 | 中国石油化工股份有限公司 | Downhole operation well fluid balance buffering method and multifunctional buffering fluid valve |
| CN103742108B (en) * | 2014-01-24 | 2016-03-30 | 中国石油化工股份有限公司 | The way to play for time of underground work well liquid balance and multifunctional buffer stream valve |
| CN107152544A (en) * | 2017-06-05 | 2017-09-12 | 东营市创元石油机械制造有限公司 | Oil drilling oiling float valve |
| CN107152544B (en) * | 2017-06-05 | 2023-12-19 | 东营市创元石油机械制造有限公司 | Oil injection float valve for petroleum drilling |
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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: 20100707 Termination date: 20181020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |