CN206055022U - A kind of pipe fitting joint - Google Patents
A kind of pipe fitting joint Download PDFInfo
- Publication number
- CN206055022U CN206055022U CN201621069934.1U CN201621069934U CN206055022U CN 206055022 U CN206055022 U CN 206055022U CN 201621069934 U CN201621069934 U CN 201621069934U CN 206055022 U CN206055022 U CN 206055022U
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- annulus
- nut
- pipe fitting
- fitting joint
- diameter
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Abstract
The utility model discloses a kind of pipe fitting joint, including nut, gas pipe and cutting ferrule, the outer surface of gas pipe is sequentially provided with annulus A, annulus B, annulus C and annulus D from bottom to top, the external diameter of the annulus A, annulus B, annulus C and annulus D is sequentially reduced, the annulus A is fixedly connected with annulus B, draw-in groove is provided between the annulus B and annulus C, annulus C is not attached to the annulus D；Nut is outer annular diameter of the cylindrical nut upper end open diameter less than annulus A, and nut upper end open is with diameter greater than the outer annular diameter equal to annulus B, nut inner surface is provided with screw thread, gas pipe inserts nut upper end open by nut lower end, cutting ferrule is fixed in draw-in groove, and cutting ferrule may be stuck in the top at nut upper end open.This utility model simple structure, it is convenient and practical, can go to tighten at pipe interface by finger, the pipe-line system for facilitating die space little is used, meanwhile, the air-tightness of pipe-line system can be improved.
Description
Technical field
This utility model belongs to nitrogen spring pipeline system accessory field, more particularly to a kind of pipe fitting joint.
Background technology
Nitrogen spring is a kind of novel elastic component with high pressure nitrogen as working media, and its small volume, elastic force are big, stroke
Long, stable working, manufacture are accurate, long service life (1,000,000 times), and spring curve is gentle, and do not need pretension etc., it
With the work that the common elastic component such as metal spring, rubber and air cushion is difficult to complete.Existing nitrogen spring is all single making
With when nitrogen spring works, internal nitrogen pressure changes greatly, is unsuitable for using on precision equipment.To guarantee to produce
Stablizing for quality, can be designed to a kind of nitrogen spring system, work as a part for mould, can be in systems
Easily realize that pressure is constant and deferred action, be a kind of optimal elastomeric element of a new generation with flex capability.And
Nitrogen spring system has strict requirements to pipeline sealing, and existing joint tighness is all less desirable, meanwhile, it is existing
Nitrogen spring pipeline system be required to the instruments such as spanner and complete when connecting, it is very inconvenient during assembling.
Utility model content
To solve the above problems, this utility model provides a kind of pipe fitting joint, and which can the existing pipe fitting joint of effectively solving
The problems such as sealing difference, in addition, nitrogen spring pipeline system can be by finger mounted, solution is inconvenient to use because die space is little
The pipeline of instrument.
For achieving the above object, this utility model provides technical scheme below：A kind of pipe fitting joint, the pipe fitting joint
Including nut, gas pipe and cutting ferrule, the gas pipe is tubular body, and the outer surface of the gas pipe is from bottom to top successively
Annulus A, annulus B, annulus C and annulus D are provided with, the external diameter of the annulus A, annulus B, annulus C and annulus D is sequentially reduced, described
Annulus A is fixedly connected with annulus B, and draw-in groove is provided between the annulus B and annulus C, and the annulus C is not attached to the annulus D；
The nut is cylindrical, and outer annular diameter of the nut upper end open diameter less than the annulus A is and described
Nut upper end open is provided with screw thread, the gas tube with diameter greater than the outer annular diameter equal to the annulus B, the nut inner surface
Part inserts the nut upper end open by the nut lower end, and the cutting ferrule is fixed in the draw-in groove, and the cutting ferrule cocker
Top at the nut upper end open.
Further, the cutting ferrule is to set annulus jaggy, and the cutting ferrule outer annular diameter is more than the nut upper end
Opening diameter.
Further, the cutting ferrule internal ring side is provided with lamellar projection.
Further, the outer surface of the nut is provided with decorative pattern.
Further, the pipe fitting joint also includes some annular recess, and the annular recess is parallel located at the gas
On the outer surface of pipe fitting upper end.
Further, the pipe fitting joint also includes adaptor, and the two ends of the adaptor are the different hollow circle of external diameter
Cylinder, and the two ends of the adaptor are equipped with screw thread, the external diameter of adaptor upper end cylinder and the internal diameter of the nut
It is identical, and the adaptor upper end is connected by screw thread with the nut, the adaptor is followed successively by from top to bottom and is connected
Hexagon is raised and circular protrusions, the internal diameter of the adaptor is identical with the external diameter of the gas pipe lower end.
Further, the adaptor also includes circular rubber blanket, and the circular rubber blanket is fixed on the circle
Raised one end.
Compared with prior art, the beneficial effects of the utility model are：
(1) the upper end insertion flexible pipe of pipe fitting joint, and pass through mechanical presses so as to fixing seal, the lower end of pipe fitting joint
It is threadedly coupled with adaptor by nut, the lower end of adaptor is connected with nitrogen spring, gas is entered by the upper end of pipe fitting joint
Enter, and sequentially pass through downwards gas pipe lower end and adaptor enters nitrogen spring；
(2) nut is threaded connection with adaptor, and in rundown process, the upper end of adaptor will be locked on annulus A tops,
Seam air-tightness is improved, meanwhile, the external diameter of gas pipe lower end cylinder is slightly less than the internal diameter of adaptor, gas pipe lower end
Can be inserted in adaptor just, seam air-tightness can be improved；
(3) nut is provided with decorative pattern, is easy to finger to go to tighten pipe interface, it is adaptable to which die space is little, it has not been convenient to use
The pipe-line system of instrument；
(4) circular rubber blanket is fixed with circular protrusions end face, can improve airtight when port is connected with nitrogen spring
Property；
(5) this utility model simple structure, it is convenient and practical, can go to tighten at pipe interface by finger, facilitate mould empty
Between little pipe-line system use, meanwhile, the air-tightness of pipe-line system can be improved.
Description of the drawings
Structural representations of the Fig. 1 for embodiment 1；
Fig. 2 is 1 dimensional decomposition structure diagram of embodiment；
Structural representations of the Fig. 3 for embodiment 2；
Structural representations of the Fig. 4 for adaptor described in embodiment 2；
Nut (1), cutting ferrule (2), annulus A (3), annulus B (4), annulus C (5), annulus D (6), draw-in groove (7), annular recess
(9), hexagon projection (11), circular protrusions (12), circular rubber blanket (13).
Specific embodiment
For content of the present utility model, feature and effect can be further illustrated, hereby enumerate following examples and further describe
This utility model.It should be appreciated by those skilled in the art, in the premise without departing from spirit and scope of the present utility model
The details of technical solutions of the utility model and form can be modified or replaced down, but these modifications and replacement each fall within this
The protection domain of utility model.
Embodiment 1：
A kind of pipe fitting joint, including nut 1, gas pipe and cutting ferrule 2, gas pipe are tubular body, outside gas pipe
Surface is sequentially provided with annulus A3, annulus B4, annulus C5 and annulus D6, annulus A3, annulus B4, annulus C5 and annulus D6 from bottom to top
External diameter be sequentially reduced, annulus A3 is fixedly connected with annulus B4, and draw-in groove 7, annulus C5 and institute are provided between annulus B4 and annulus C5
State annulus D6 to be not attached to；
Nut 1 is cylindrical, outer annular diameter of the 1 upper end open diameter of nut less than annulus A3, and 1 upper end open of nut
With diameter greater than the outer annular diameter equal to annulus B4,1 inner surface of nut is provided with screw thread, and gas pipe inserts nut 1 by 1 lower end of nut
Upper end open, cutting ferrule 2 are fixed in draw-in groove 7, and the cutting ferrule 2 may be stuck in the top at 1 upper end open of nut.Cutting ferrule 2 is to set
Annulus jaggy, and 2 outer annular diameter of cutting ferrule is more than 1 upper end open diameter of nut.It is raised that 2 internal ring side of cutting ferrule is provided with lamellar.
The outer surface of nut 1 is provided with decorative pattern.
The pipe fitting joint also includes some annular recess 9, and the annular recess 9 is parallel located at the gas pipe upper end
On outer surface.
Embodiment 2：
On the basis of embodiment 1, the pipe fitting joint also includes adaptor, the two ends of adaptor be external diameter it is different in
Hollow cylinder, and the two ends of adaptor are equipped with screw thread, the external diameter of adaptor upper end cylinder is identical with the internal diameter of nut 1, turns
Upper end of joint is connected by screw thread with nut 1, is followed successively by hexagon 11 Hes of projection being connected in the middle of adaptor from top to bottom
Circular protrusions 12, the internal diameter of adaptor are identical with the external diameter of gas pipe lower end.
Preferably, adaptor also includes circular rubber blanket 13, and circular rubber blanket 13 is fixed on the circular protrusions 12
One end.
Claims (7)
1. a kind of pipe fitting joint, it is characterised in that：The pipe fitting joint includes nut (1), gas pipe and cutting ferrule (2), described
Gas pipe is tubular body, and the outer surface of the gas pipe is sequentially provided with annulus A (3), annulus B (4), annulus C from bottom to top
(5) and annulus D (6), the external diameter of the annulus A (3), annulus B (4), annulus C (5) and annulus D (6) is sequentially reduced, the annulus
A (3) is fixedly connected with annulus B (4), and draw-in groove (7), the annulus C (5) and institute are provided between the annulus B (4) and annulus C (5)
State annulus D (6) to be not attached to；
The nut (1) is cylindrical, outer annular diameter of nut (1) the upper end open diameter less than the annulus A (3),
And nut (1) upper end open, with diameter greater than the outer annular diameter equal to the annulus B (4), nut (1) inner surface is provided with
Screw thread, the gas pipe insert nut (1) upper end open by the nut (1) lower end, and the cutting ferrule (2) is fixed on institute
State in draw-in groove (7), and the cutting ferrule (2) may be stuck in the top at the nut (1) upper end open.
2. a kind of pipe fitting joint according to claim 1, it is characterised in that：The cutting ferrule (2) to set annulus jaggy,
And cutting ferrule (2) outer annular diameter is more than the nut (1) upper end open diameter.
3. a kind of pipe fitting joint according to claim 2, it is characterised in that：Cutting ferrule (2) the internal ring side is provided with lamellar
It is raised.
4. a kind of pipe fitting joint according to claim 1, it is characterised in that：The outer surface of the nut (1) is provided with decorative pattern.
5. a kind of pipe fitting joint according to claim 1, it is characterised in that：The pipe fitting joint also includes that some ring-types are recessed
Groove (9), the annular recess (9) are parallel on the outer surface of the gas pipe upper end.
6. a kind of pipe fitting joint according to claim 1, it is characterised in that：The pipe fitting joint also includes adaptor, institute
The two ends for stating adaptor are the different hollow circular cylinder of external diameter, and the two ends of the adaptor are equipped with screw thread, the adaptor
The external diameter of upper end cylinder is identical with the internal diameter of the nut (1), and the adaptor upper end with the nut (1) by screw thread
It is connected, the adaptor is followed successively by hexagon projection (11) and circular protrusions (12) being connected, the switching from top to bottom
The internal diameter of head is identical with the external diameter of the gas pipe lower end.
7. a kind of pipe fitting joint according to claim 6, it is characterised in that：The adaptor also includes circular rubber blanket
(13), the circular rubber blanket (13) is fixed on the circular protrusions (12) one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621069934.1U CN206055022U (en) | 2016-09-20 | 2016-09-20 | A kind of pipe fitting joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621069934.1U CN206055022U (en) | 2016-09-20 | 2016-09-20 | A kind of pipe fitting joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206055022U true CN206055022U (en) | 2017-03-29 |
Family
ID=58366996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621069934.1U Active CN206055022U (en) | 2016-09-20 | 2016-09-20 | A kind of pipe fitting joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206055022U (en) |
-
2016
- 2016-09-20 CN CN201621069934.1U patent/CN206055022U/en active Active
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