CN2069960U - Convenient joint for steel pipe - Google Patents
Convenient joint for steel pipe Download PDFInfo
- Publication number
- CN2069960U CN2069960U CN 90209236 CN90209236U CN2069960U CN 2069960 U CN2069960 U CN 2069960U CN 90209236 CN90209236 CN 90209236 CN 90209236 U CN90209236 U CN 90209236U CN 2069960 U CN2069960 U CN 2069960U
- Authority
- CN
- China
- Prior art keywords
- joint
- gland
- overcoat
- steel pipe
- taper hole
- 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.)
- Withdrawn
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Abstract
The utility model relates to a convenient joint for steel pipes, composed of an outer sleeve, a pressing sleeve and a sealing mattress, wherein, the outer sleeve can be a joint for straight pipes, a joint for right-angle bent pipes, a three-way or four-way joint, and an irregular joint. The convenient joint for steel pipes can also be composed of a bolt of the pressing sleeve, a nut of the pressing sleeve and a sealing mattress. The main point of the convenient joint for steel pipes is that a steel pipe and a joint are connected by press fit instead of screw thread. Compared with the existing pipe joints, the utility model has the advantages of convenient operation, very few tools which are needed during pipe installation, low labor intensity for installation personnel, and high work efficiency. The utility model is suitable for connecting low pressure steel pipes which are used for delivering water, gas and oil.
Description
The utility model belongs to a kind of pipe coupling.
Between existing pipes and tubes joint and the steel pipe for being threaded.In piping erection, must earlier used steel tube end part strand be made the screw thread that matches with pipe coupling.At present the method for strand system screw thread generally adopts manual processing on steel pipe, with existing joint connecting tube require great effort, time-consuming, work efficiency is low, the piping erection cost is higher.
The purpose of this utility model provide a kind of when connecting tube need the end of steel pipe strand system screw thread, laborsaving, save time, steel pipe joint easy to use.
Task of the present utility model is finished as follows: steel pipe makes things convenient for joint to be made up of overcoat (1), gland (2), sealing cushion cover (3).Be provided with a back-up ring (8) in the middle of overcoat (1) endoporus, back-up ring (8) is connected as a single entity with overcoat (1), and overcoat (1) two is provided with internal thread.Gland (2) is provided with the outside thread that matches with overcoat (1) internal thread, and the end of gland (2) is a bolt head, and the through hole of gland (2) is the taper hole that the front end aperture is big, end aperture is little.The outer side surface of sealing cushion cover (3) is the conical surface that point diameter is big, end diameter is little, its tapering is identical with the tapering of gland (2) taper hole, the front end of sealing cushion cover (3) is provided with inner shield ring (9) and outer back-up ring (10), has a circular groove (11) on the ear end face of back-up ring (10) outside.Overcoat (1) also can be made into elbow unions except that being the straight connector; Threeway, cross fitting; An aperture is little, the reducer fitting that the aperture is big.
Task of the present utility model can also following mode be finished: steel pipe makes things convenient for joint to be made up of gland bolt (5), gland nut (6), sealing cushion cover (7).Gland bolt (5) a taper hole axially arranged, on big one in gland bolt (5) taper hole aperture, be provided with outside thread.Gland nut (6) a taper hole axially arranged, its tapering is identical with the tapering of gland bolt (5) taper hole, is provided with the internal thread that matches with gland bolt (5) outside thread on big one in gland nut (6) taper hole aperture.The outer side surface of sealing cushion cover (7) is the conical surface that point diameter is big, end diameter is little, and its tapering is identical with the tapering of gland bolt (5) taper hole.The front end of sealing cushion cover (7) is provided with inner shield ring (12).
The utility model is compared with existing pipe coupling has following characteristics: need be during piping erection at the end of steel pipe strand system screw thread, and required instrument when having reduced piping erection has alleviated piping erection personnel's labor intensity, and the work efficiency height is easy to use.The utility model is suitable for the connection of low-pressure water delivery, gas transmission, oil transportation steel pipe.
Description of drawings:
Fig. 1 makes things convenient for joint embodiment one structural representation for the straight tube steel pipe.Wherein (1) represents overcoat; (2) expression gland; (3) expression sealing cushion cover; (4) expression steel pipe.
Fig. 2 makes things convenient for the structural representation of joint for the right-angle elbow pipe steel pipe.
Fig. 3 makes things convenient for the structural representation of joint for the Three way type steel pipe.
Fig. 4 makes things convenient for the structural representation of joint for the reducing steel pipe.
Fig. 5 makes things convenient for joint embodiment two structural representation for the straight tube steel pipe.Wherein (5) represent the gland bolt; (6) expression gland nut; (7) expression sealing cushion cover.
Fig. 6 is the structural representation of overcoat.Wherein (8) represent back-up ring.
Fig. 7 is the sealing gasket nested structure schematic representation with outer back-up ring.Wherein (9) represent inner shield ring; (10) the outer back-up ring of expression; (11) expression groove.
Fig. 8 is the structural representation of sealing cushion cover.Wherein (12) represent inner shield ring.
Embodiment one:
Make a kind of straight tube steel pipe according to the utility model and make things convenient for joint.Overcoat (1), gland (2) form by precision casting, gold machining manufacturing with cast steel.Sealing cushion cover (3) processes by Shooting Technique with plastics.So just obtain a kind of straight tube steel pipe and made things convenient for joint.During use, earlier two sealing cushion covers (3) are respectively charged in two stomidiums of overcoat (1), again in two stomidiums with two glands (2) difference precession overcoats (1).The end of two steel pipes (4) of need connection is injected respectively in gland (2) hole at joint two ends, and screwing gland (2) can connect two steel pipes (4).
Embodiment two:
Steel pipe makes things convenient for joint to be made up of gland bolt (5), gland nut (6), sealing cushion cover (7).Gland bolt (5), gland nut (6) form by precision casting, gold machining manufacturing with cast steel.Sealing cushion cover (7) processes by Shooting Technique with plastics.So just obtain a kind of straight tube steel pipe and made things convenient for joint.During use, earlier two sealing cushion covers (7) are respectively charged in the taper hole of gland bolt (5), gland nut (6).The end of two steel pipes (4) of need connection is injected respectively in the through hole of the sealing cushion cover (7) in gland bolt (5), the gland nut (6), gland bolt (5) is tightly screwed in the gland nut (6) and can connect two steel pipes (4).
Claims (6)
1, a kind of steel pipe makes things convenient for joint, it is characterized in that this joint is made up of overcoat (1), gland (2), sealing cushion cover (3), wherein:
Be provided with a back-up ring (8) in the middle of a, overcoat (1) endoporus, back-up ring (8) is connected as a single entity with overcoat (1), and overcoat (1) two is provided with internal thread;
B, gland (2) are provided with the outside thread that matches with overcoat (1) internal thread, and the end of gland (2) is a bolt head, and the through hole of gland (2) is the taper hole that the front end aperture is big, end aperture is little;
The outer side surface of c, stuffing box gland (3) is the conical surface that point diameter is big, end diameter is little, its tapering is identical with the tapering of gland (2) taper hole, the front end of sealing cushion cover (3) is provided with inner shield ring (9) and outer back-up ring (10), has a circular groove (11) on the ear end face of back-up ring (10) outside.
2, steel pipe according to claim 1 makes things convenient for joint, it is characterized in that, overcoat (1) is elbow unions.
3, steel pipe according to claim 1 makes things convenient for joint, it is characterized in that, overcoat (1) is a tee union.
4, steel pipe according to claim 1 makes things convenient for joint, it is characterized in that, overcoat (1) is a cross fitting.
5, steel pipe according to claim 1 makes things convenient for joint, it is characterized in that, overcoat (1) is that an aperture is little, the reducer fitting that the aperture is big.
6, a kind of steel pipe makes things convenient for joint, it is characterized in that this joint is made up of gland bolt (5), gland nut (6), sealing cushion cover (7), wherein:
A, gland bolt (5) a taper hole axially arranged, on big one in gland bolt (5) taper hole aperture, be provided with outside thread;
B, gland nut (6) a taper hole axially arranged, its tapering is identical with the tapering of gland bolt (5) taper hole, is provided with the internal thread that matches with gland bolt (5) outside thread on big one in gland nut (6) taper hole aperture;
The outer side surface of c, sealing cushion cover (7) is the conical surface that point diameter is big, end diameter is little, and its tapering is identical with the tapering of gland bolt (5) taper hole, and the front end of sealing cushion cover (7) is provided with inner shield ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90209236 CN2069960U (en) | 1990-06-23 | 1990-06-23 | Convenient joint for steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90209236 CN2069960U (en) | 1990-06-23 | 1990-06-23 | Convenient joint for steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2069960U true CN2069960U (en) | 1991-01-23 |
Family
ID=4889338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90209236 Withdrawn CN2069960U (en) | 1990-06-23 | 1990-06-23 | Convenient joint for steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2069960U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939696A (en) * | 2014-04-15 | 2014-07-23 | 傅国勤 | Expansion coupling tee joint |
| CN105839924A (en) * | 2016-03-29 | 2016-08-10 | 柳州首光科技有限公司 | Concrete spreader leakage-proof structure |
| CN107421375A (en) * | 2017-08-02 | 2017-12-01 | 芜湖精达机械制造有限公司 | A kind of cooling line attachment means |
-
1990
- 1990-06-23 CN CN 90209236 patent/CN2069960U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939696A (en) * | 2014-04-15 | 2014-07-23 | 傅国勤 | Expansion coupling tee joint |
| CN105839924A (en) * | 2016-03-29 | 2016-08-10 | 柳州首光科技有限公司 | Concrete spreader leakage-proof structure |
| CN107421375A (en) * | 2017-08-02 | 2017-12-01 | 芜湖精达机械制造有限公司 | A kind of cooling line attachment means |
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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 |