CN201739658U - Structure capable of quickly connecting and combining pipe fittings - Google Patents
Structure capable of quickly connecting and combining pipe fittings Download PDFInfo
- Publication number
- CN201739658U CN201739658U CN2010202121192U CN201020212119U CN201739658U CN 201739658 U CN201739658 U CN 201739658U CN 2010202121192 U CN2010202121192 U CN 2010202121192U CN 201020212119 U CN201020212119 U CN 201020212119U CN 201739658 U CN201739658 U CN 201739658U
- Authority
- CN
- China
- Prior art keywords
- swivel nut
- locking swivel
- internal lining
- lining pipe
- external
- 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 - Lifetime
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Abstract
The utility model discloses a structure capable of quickly connecting and combining pipe fittings which consists of an inner liner tube, an inner cutting sleeve, a locking swivel nut and a seal ring. The inner liner tube is coaxially arranged in the locking swivel nut; an external thread connector is connected with the back end of the locking swivel nut through thread; the inner cutting sleeve is sleeved outside the periphery of the inner liner tube; the front end of the outer wall of the inner cutting sleeve is provided with a conical surface; an external connecting tube is inserted between the inner circumferential wall of the inner cutting sleeve and the outer circumference of the inner liner tube from the front end of the locking swivel nut; the conical surface is arranged in the inner wall of the middle section of the locking swivel nut; the external connecting tube is sleeved on the inner liner tube; the locking swivel nut is connected with the external thread connector through threads; the external connecting tube, the inner liner tube and the external thread connector are communicated; the inner cutting sleeve does not deform under the squeezing of the inner conical surface of the locking swivel nut to lock the external connecting tube to prevent the external connecting tube from separating out. The structure capable of quickly connecting and combining pipe fittings realizes the quick connecting and sealing on the external connecting tube and the external thread connector, and directly uses an interface provided by an external apparatus as one part of a connecting structure, and saves materials to the maximum extent.
Description
Technical field:
The utility model relates to pipe transportation technology, relates in particular to pipe joint, particularly a kind of quick connection combined pipe fitting structure.
Background technique:
In the prior art, water pipe adapter is used to connect two external connecting pipes, external connecting pipe has different Placements, quick Connector coupling adopts the structure of two conical surface mutual extrusion, in order to realize reliable sealing and to be connected, need the pressure that keeps bigger between the conical surface, cause the nut that has internal conical surface or break straight tube or the outer conical surface member that connects easily like this.In addition, outside utensil need provide the connection pipe fitting that is threaded structure under a lot of occasions, and quick Connector coupling of the prior art can not connect or the structure relative complex by the matching thread pipe fitting.
Summary of the invention:
The purpose of this utility model is to provide a kind of quick connection combined pipe fitting structure, break because of the pressure easily technical problem of the outside utensil inipple that leaks, can not connect of the quick Connector coupling that described this quick connection combined pipe fitting structure will solve water pipe in the prior art.
This quick connection combined pipe fitting structure of the present utility model is by an internal lining pipe, a locking swivel nut, an interior cutting ferrule, a gasket seal and at least one seal ring constitute, described locking screw is enclosed within the outer coaxial setting of internal lining pipe, the back end circumference of locking swivel nut is provided with screw thread, an external screw-thread link is by being threaded in the rear end of locking swivel nut, be provided with a gasket seal between the front-end face of the ear end face of internal lining pipe and external screw-thread link, be arranged at intervals with at least two circumferential fins on the excircle of internal lining pipe, cutting ferrule is set in outside the circumference of internal lining pipe in described, it is zigzag circumferential fin that the inner peripheral wall of interior cutting ferrule is provided with at least two axial sections, the front end of the outer wall of interior cutting ferrule is provided with conical surface, between the excircle of the inner peripheral wall of cutting ferrule and internal lining pipe, the stage casing inwall of locking swivel nut was provided with conical surface in an external connecting pipe was inserted into from the front end of locking swivel nut.
Further, the fore end outer circumference of described internal lining pipe is provided with at least one seal ring.
Further, the fore end outer circumference of described internal lining pipe is provided with the groove of at least one circumferencial direction, is provided with an O RunddichtringO in the described groove.
Working principle of the present utility model is: external connecting pipe is set on the internal lining pipe, the locking swivel nut is connected with the external screw-thread link by screw thread, external connecting pipe, internal lining pipe and external screw-thread link are communicated with, in be fastened in the extruding distortion down of locking swivel nut internal conical surface, with external connecting pipe locking in case anti-avulsion go out.The circumferential fin of interior cutting ferrule inboard is used to tighten external connecting pipe, makes itself and external connecting pipe only unidirectional relative displacement can take place, and the circumferential fin in the internal lining pipe outside can help the fixed outer connecting tube, increases frictional force.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model utilizes the locking screw cover to connect the external screw-thread link, utilization is arranged on the distortion locking external connecting pipe of the interior cutting ferrule in the locking swivel nut, thereby realize that external connecting pipe is connected with the quick of external screw-thread link, and can apply under the less pressure at the locking swivel nut and realize sealing reliably and be connected, reduced requirement of strength to member, can also directly utilize interface that outside utensil provides a part, to greatest extent economical with materials as linkage structure.
Description of drawings:
Fig. 1 is the schematic representation of quick connection combined pipe fitting structure of the present utility model.
Embodiment:
Embodiment 1:
As shown in Figure 1, quick connection combined pipe fitting structure of the present utility model, by an internal lining pipe 2, a locking swivel nut 5, an interior cutting ferrule 4, a seal washer 6 and at least one seal ring 3 constitute, the described locking swivel nut 5 interior coaxial internal lining pipes 2 that are provided with, the back end circumference of locking swivel nut 5 is provided with screw thread, external screw-thread link 7 is by being threaded in the rear end of locking swivel nut 5, be provided with a seal washer 6 between the front-end face of the ear end face of described internal lining pipe 2 and external screw-thread link 7, be arranged at intervals with at least two circumferential fins on the excircle of internal lining pipe 2, cutting ferrule 4 is set in outside the circumference of internal lining pipe 2 in described, it is zigzag circumferential fin that the inner peripheral wall of interior cutting ferrule 4 is provided with at least two axial sections, the front end of the outer wall of interior cutting ferrule 4 is provided with conical surface, between the excircle of the inner peripheral wall of cutting ferrule 4 and internal lining pipe 2, the stage casing inwall of locking swivel nut 5 was provided with conical surface in external connecting pipe 1 was inserted into from the front end of locking swivel nut 5.
Further, the fore end outer circumference of described internal lining pipe 2 is provided with at least one seal ring 3.
Further, the fore end outer circumference of described internal lining pipe 2 is provided with the groove of at least one circumferencial direction, is provided with an O RunddichtringO in the described groove.
The working procedure of present embodiment is: external connecting pipe 1 is set on the internal lining pipe 2, locking swivel nut 5 is connected with external screw-thread link 7 by screw thread, external connecting pipe 1, internal lining pipe 2 and external screw-thread link 7 are communicated with, interior cutting ferrule 4 is out of shape under the extruding of locking swivel nut 5 internal conical surfaces, with external connecting pipe 1 locking.The circumferential fin of interior cutting ferrule 4 inboards is used to tighten external connecting pipe 1, makes itself and external connecting pipe 1 only unidirectional relative displacement can take place, and the circumferential fin in internal lining pipe 2 outsides can help fixed outer connecting tube 1, increases frictional force.
Claims (3)
1. one kind connects the combined pipe fitting structure fast, by an internal lining pipe, a locking swivel nut, an interior cutting ferrule and a gasket seal constitute, it is characterized in that: the interior coaxial internal lining pipe that is provided with of described locking swivel nut, the back end circumference of locking swivel nut is provided with screw thread, an external screw-thread link is by being threaded in the rear end of locking swivel nut, described gasket seal is arranged between the front-end face of the ear end face of internal lining pipe and described external screw-thread link, be arranged at intervals with at least two circumferential fins on the excircle of internal lining pipe, cutting ferrule is set in outside the circumference of internal lining pipe in described, it is zigzag circumferential fin that the inner peripheral wall of interior cutting ferrule is provided with at least two axial sections, the front end of the outer wall of interior cutting ferrule is provided with conical surface, between the excircle of the inner peripheral wall of cutting ferrule and internal lining pipe, the stage casing inwall of locking swivel nut was provided with conical surface in an external connecting pipe was inserted into from the front end of locking swivel nut.
2. quick connection combined pipe fitting structure as claimed in claim 1, it is characterized in that: the fore end outer circumference of described internal lining pipe is provided with at least one seal ring.
3. quick connection combined pipe fitting structure as claimed in claim 1, it is characterized in that: the fore end outer circumference of described internal lining pipe is provided with the groove of at least one circumferencial direction, is provided with an O RunddichtringO in the described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202121192U CN201739658U (en) | 2010-06-01 | 2010-06-01 | Structure capable of quickly connecting and combining pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202121192U CN201739658U (en) | 2010-06-01 | 2010-06-01 | Structure capable of quickly connecting and combining pipe fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739658U true CN201739658U (en) | 2011-02-09 |
Family
ID=43554933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202121192U Expired - Lifetime CN201739658U (en) | 2010-06-01 | 2010-06-01 | Structure capable of quickly connecting and combining pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739658U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269304A (en) * | 2010-06-01 | 2011-12-07 | 上海龙胜实业有限公司 | Rapid connecting assembly-pipe fitting structure |
| CN103867820A (en) * | 2012-12-14 | 2014-06-18 | 林子棋 | Connection self-locking structure for pipeline connection |
| CN104759923A (en) * | 2015-04-02 | 2015-07-08 | 广西玉林达业机械配件有限公司 | Connecting rod self-locking structure |
-
2010
- 2010-06-01 CN CN2010202121192U patent/CN201739658U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269304A (en) * | 2010-06-01 | 2011-12-07 | 上海龙胜实业有限公司 | Rapid connecting assembly-pipe fitting structure |
| CN103867820A (en) * | 2012-12-14 | 2014-06-18 | 林子棋 | Connection self-locking structure for pipeline connection |
| CN103867820B (en) * | 2012-12-14 | 2016-12-21 | 林子棋 | The connection self-locking structure connected for pipeline |
| CN104759923A (en) * | 2015-04-02 | 2015-07-08 | 广西玉林达业机械配件有限公司 | Connecting rod self-locking structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |