CN208634593U - A kind of gas metal pipe - Google Patents
A kind of gas metal pipe Download PDFInfo
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- CN208634593U CN208634593U CN201821394733.8U CN201821394733U CN208634593U CN 208634593 U CN208634593 U CN 208634593U CN 201821394733 U CN201821394733 U CN 201821394733U CN 208634593 U CN208634593 U CN 208634593U
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- pipe fitting
- spacing
- pipe
- metal bellows
- nut
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Abstract
The utility model provides a kind of gas metal pipe, belongs to gas-fired equipment technical field.It solves the problems such as existing gas metal pipe flexibility is bad.This gas metal pipe includes metal bellows, one end of metal bellows is welded with pipe fitting one, the other end is welded with pipe fitting two, the both ends of metal bellows all have axially uniformly distributed annular shape protrusion one, spacing is consistent between adjacent annular shape protrusion one at metal bellows both ends and is named as spacing one, this section pipe shaft of the metal bellows between the innermost circular protrusion one in both ends is compression section, the axial width for the annular shape protrusion two that compression section has is at most 2/3rds of a circular raised axial width, spacing is consistent between adjacent rings shape protrusion two and is named as spacing two, spacing two is at most 2/3rds of spacing one.The utility model has many advantages, such as that flexibility is good, easy to connect.
Description
Technical field
The utility model belongs to gas-fired equipment technical field, is related to a kind of gas metal pipe.
Background technique
Gas hose, existing gas metal pipe are all used when connecting between gas pipeline and burnt gas valve or gas-cooker
For a kind of multiple tube, internal is metal bellows, and outside is fire-retardant PVC Frpipe, and when connection requires leakproofness and securely
Property will be got well.
Such as Chinese patent literature data discloses a kind of Novel hanging tool for hanging soft boards [application number: 200920185384.4；Authorization is public
Announcement number: CN201428869Y], it is socketed with network management in the outer surface of bellows, extrudes one layer of pillar in the outer surface of network management, is protected
Pipe forms a transparent body along its centerline direction, and argon arc welding is connected to pipe fitting respectively at the both ends of bellows and network management, in pipe
The weld pillar of connector and bellows, network management is provided with the cutting ferrule of fastening pipe fitting.
Above-mentioned Novel hanging tool for hanging soft boards uses bellows, network management and pillar three-decker, and intensity is high, improves using safe
Property, but flexibility is not ideal enough, is not easy to mounting arrangements, pipe fitting is straight-tube shape, is required when connecting with gas-cooker another
One union elbow of outer connection, connection is not convenient enough, and the increase of union elbow also leads to the increase at sealing, reduces using peace
Quan Xing, in addition the leakproofness at pipe fitting is also not ideal enough.
Summary of the invention
The purpose of this utility model is that it is good, even to provide a kind of flexibility for the above-mentioned problems in the prior art
Connect convenient gas metal pipe.
The purpose of this utility model can be realized by the following technical scheme: a kind of gas metal pipe, including wavy metal
Pipe, one end of the metal bellows are welded with pipe fitting one, and the other end is welded with pipe fitting two, and the pipe fitting one is in
Straight-tube shape and pipe fitting one are connected with nut one, and the gasket for sealed fitting one is equipped in the nut one, special
Sign is that the pipe fitting two is connected with nut two in syphon shape and pipe fitting two, is equipped in the nut two for close
The sealing shroud of tube sealing connector two, the both ends of the metal bellows all have axially uniformly distributed annular shape protrusion one, metal wave
Spacing is consistent between adjacent annular shape protrusion one at line pipe both ends and is named as spacing one, and the metal bellows is in two
Holding this section of pipe shaft between innermost circular protrusion one is compression section, the annular shape protrusion two that the compression section has
Axial width is at most 2/3rds of a circular raised axial width, and spacing is consistent between adjacent rings shape protrusion two and orders
Entitled spacing two, the spacing two are at most 2/3rds of spacing one.
In a kind of above-mentioned gas metal pipe, the axial width of the annular shape protrusion two is circular protrusion one
The half of axial width, the spacing two are the half of spacing one.
In a kind of above-mentioned gas metal pipe, it is cased with fire-retardant set outside the metal bellows, the fire-retardant set
One end is anchored on end and outermost of this end of metal bellows that metal bellows is connected with pipe fitting one by cutting ferrule one
Away from the sealing ring one for being sealed in one inner wall of cutting ferrule is embedded at one, the other end of the fire-retardant set is anchored on gold by cutting ferrule two
Category bellows, which is connected with to be embedded at the outermost spacing one in end and this end of metal bellows of pipe fitting two, is sealed in cutting ferrule
The sealing ring two of two inner walls.
In a kind of above-mentioned gas metal pipe, the pipe fitting two is embedded with sealing ring three, two riveting of cutting ferrule
It is connected to pipe fitting two and sealing ring three is sealed in two inner wall of cutting ferrule.
In a kind of above-mentioned gas metal pipe, the outer end of the pipe fitting one has the shoulder block radially turned down, described
The outer end of cutting ferrule one be arranged close to shoulder block and outer end that cap that the nut one has is located at cutting ferrule one along one and shoulder block
Between.
In a kind of above-mentioned gas metal pipe, it is cased with tubular lock nut outside the pipe fitting two, the pipe connects
First two outer end is in the shape of a trumpet to be contradicted for lock nut, and the lock nut is threaded with nut two, what the nut two had
Cap along two for sealing shroud outer end contradict, the inner end of the sealing shroud inserts in the outer end of pipe fitting two and the inner end of sealing shroud
Outer wall is the conical surface.
In a kind of above-mentioned gas metal pipe, the metal bellows is corrugated stainless steel tubing.
Compared with prior art, the flexibility of this gas metal pipe is good, is convenient for curved arrangement, and easy to connect, sealing
Good, safe to use, the long service life of property.
Detailed description of the invention
Fig. 1 is the structure sectional view of this gas metal pipe.
Fig. 2 is the schematic enlarged-scale view in Fig. 1 at circle A.
Fig. 3 is the schematic enlarged-scale view in Fig. 1 at circle B.
In figure, 1, metal bellows；2, pipe fitting one；21, shoulder block；3, pipe fitting two；4, nut one；41, cap is along one；5,
Gasket；6, nut two；61, cap is along two；7, sealing shroud；71, the conical surface；8, circular protrusion one；9, spacing one；10, compression section；
101, circular protrusion two；102, spacing two；11, fire-retardant set；12, cutting ferrule one；13, sealing ring one；14, cutting ferrule two；15, it seals
Circle two；16, sealing ring three；17, lock nut.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As depicted in figs. 1 and 2, this gas metal pipe includes metal bellows 1, and one end of metal bellows 1 is welded with pipe
Connector 1, the other end are welded with pipe fitting 23, and pipe fitting 1 is straight and pipe fitting 1 is connected with nut 1, nut
The gasket 5 for sealed fitting 1 is equipped in one 4, pipe fitting 23 is connected with nut two in syphon shape and pipe fitting 23
6, the interior sealing shroud 7 being equipped with for sealed fitting 23 of nut 26, the both ends of metal bellows 1 all have axially uniformly distributed circle
Annular projection 1, spacing 1 causes and is named as spacing one between the adjacent annular shape protrusion 1 at 1 both ends of metal bellows
9, this section pipe shaft of the metal bellows 1 between the innermost circular protrusion 1 in both ends is compression section 10, and compression section 10 has
The axial width of annular shape protrusion 2 101 be at most 2/3rds of circular raised one 8 axial widths, adjacent rings shape is convex
It plays spacing 1 between 2 101 to cause and be named as spacing 2 102, spacing 2 102 is at most 2/3rds of spacing 1.
It further describes in detail, metal bellows 1 is corrugated stainless steel tubing in the present embodiment, and such good corrosion resistance uses the longevity
Life length.The axial width of circular protrusion 2 101 is the half of the axial width of circular protrusion 1, and spacing 2 102 is
The half of spacing 1.1 both ends of metal bellows are removed, the compression ratio of metal bellows 1 reaches 50%, for example, i.e.
Two meters long of standard metal bellows 1 is compressed into one meter long of metal bellows 1, so as to improve the soft of metal bellows 1
It is soft, it is convenient for curved arrangement.
Metal bellows 1 is carried out compression processing by this gas metal pipe, so that metal bellows 1 has compression section 10, pressure
Contracting section 10 have annular shape protrusion 2 101 and spacing 2 102 axial width it is smaller, interfere with each other it is small so that metal wave
The flexibility of line pipe 1 is good, facilitates 1 curved arrangement of metal bellows, and the not pliable breakage of the good metal bellows 1 of flexibility makes
It is long with the service life；It is directly connected for the adapter tube of gas-cooker in the pipe fitting of syphon shape, by tightening nuts 26, nut 26 makes close
Big envelope 7 is sealed in the adapter tube of pipe fitting 23 and gas-cooker, ensure that leakproofness, the adapter tube connection side of pipe fitting 23 and gas-cooker
Just, pipe fitting 1 straight is inserted into for fuel gas conduit, and by tightening nuts 1, nut 1 is threadedly coupled simultaneously with fuel gas conduit
So that the end of fuel gas conduit contacts at gasket 5, until gasket 5 is sealed in pipe fitting 1, effective sealing is realized, pipe connects
First 2 is easy to connect with fuel gas conduit.
Fire-retardant set 11 is cased with outside metal bellows 1, one end of fire-retardant set 11 is anchored on metal bellows 1 by cutting ferrule 1
It is connected with to be embedded at the outermost spacing 1 in the end of pipe fitting 1 and this end of metal bellows 1 and be sealed in cutting ferrule 1
The sealing ring 1 of wall, metal bellows 1 is connected with the end tool of pipe fitting 1 there are two circular protrusions one in the present embodiment
Spacing 1 between 8 and the two circular protrusions 1 is embedded sealing ring 1, the outermost circular protrusion 1 in this end with
The welding of one 2 phase of pipe fitting；The other end of fire-retardant set 11 is anchored on metal bellows 1 by cutting ferrule 2 14 and is connected with pipe fitting 23
The outermost spacing 1 in end and this end of metal bellows 1 at be embedded with the sealing ring 2 15 for being sealed in 2 14 inner wall of cutting ferrule,
Metal bellows 1 is connected with the end tool of pipe fitting 23 there are two two circular raised 1 in the present embodiment and the two are justified
Spacing 1 between annular projection 1 is embedded with sealing ring 2 15, the outermost circular protrusion 1 in this end and pipe fitting 23
Mutually weld.Fire-retardant set 11 is made of existing PVC material, plays fire retardation, and cutting ferrule 1, cutting ferrule 2 14, sealing ring
1 and sealing ring 2 15 setting, ensure that the leakproofness between fire-retardant 11 both ends of set and 1 both ends of metal bellows, even if golden
Belong to and being leaked at bellows 1, fire-retardant set 11 is still avoided that combustion gas leaks, and improves safety in utilization, sealing ring 1 and close
Seal 2 15 also avoids pollution object and enters at metal bellows 1 and cause to corrode, and extends the service life of metal bellows 1.
Pipe fitting 23 is embedded with sealing ring 3 16, and cutting ferrule 2 14 is riveted on pipe fitting 23 and sealing ring 3 16 is sealed in card
Cover 2 14 inner walls.Pipe fitting 23 and 2 14 stable connection of cutting ferrule, sealing ring 3 16 ensure that cutting ferrule 2 14 and pipe fitting two in this way
Leakproofness between 3, the pollutant sputtered when avoiding cooking cause corruption to the weld of pipe fitting 23 and metal bellows 1
Erosion, extends service life.The outer end of pipe fitting 1 has the shoulder block 21 that radially turns down, and the outer end of cutting ferrule 1 is close to gear
Shoulder 21 is arranged, and the cap that nut 1 has is located between the outer end and shoulder block 21 of cutting ferrule 1 along 1.Make nut one in this way
4 limits, nut 1 will not fall off, and shoulder block 21 also increases the contact area with gasket 5, improves sealing effect.
As shown in Fig. 1 and Fig. 3, tubular lock nut 17 is cased with outside pipe fitting 23,23 outer end of pipe fitting is in horn mouth
Shape is contradicted for lock nut 17, and lock nut 17 is threaded with nut 26, and the cap that nut 26 has is supported along 2 61 for the outer end of sealing shroud 7
Touching, the inner end of sealing shroud 7 inserts in the outer end of pipe fitting 23 and the inner end outer wall of sealing shroud 7 is the conical surface 71.The adapter tube of gas-cooker
It is inserted into sealing shroud 7, tightening nuts 26, the cap of nut 26 is sealed in the inner end of sealing shroud 7 along 2 61 extruding sealing shrouds 7
The outer end of pipe fitting 23, sealing shroud 7 are compressed to guarantee the leakproofness between the adapter tube of gas-cooker and pipe fitting 23, sealing shroud 7
The conical surface 71 that inner end has is matched with 23 outer end of pipe fitting in the shape of a trumpet, improves 7 inner end deformation quantity of sealing shroud, improves
Sealing effect.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.Herein
Described in specific embodiment be only the spirit of the present invention is given an example.The utility model technical field
Technical staff can make various modifications or additions to the described embodiments or be substituted in a similar manner, but
Without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (7)
1. a kind of gas metal pipe, including metal bellows (1), one end of the metal bellows (1) are welded with pipe fitting
One (2), the other end are welded with pipe fitting two (3), and the pipe fitting one (2) is straight and pipe fitting one (2) is connected with spiral shell
Cap one (4), the interior gasket (5) being equipped with for sealed fitting one (2) of the nut one (4), which is characterized in that described
Pipe fitting two (3) is connected with nut two (6) in syphon shape and pipe fitting two (3), is equipped in the nut two (6) for sealing
The sealing shroud (7) of pipe fitting two (3), the both ends of the metal bellows (1) all have axially uniformly distributed annular shape protrusion one
(8), spacing one (9) causes and is named as spacing one between raised one (8) of adjacent annular shape at metal bellows (1) both ends
(9), this section pipe shaft of the metal bellows (1) between innermost circular raised one (8) in both ends is compression section
(10), the axial width of raised two (101) of annular shape that the compression section (10) have is at most circular raised (8) axis
To 2/3rds of width, spacing one (9) causes and is named as spacing two (102) between adjacent rings shape protrusion two (101), described
Spacing two (102) be at most 2/3rds of spacing one (9).
2. a kind of gas metal pipe according to claim 1, which is characterized in that raised two (101) of the annular shape
Axial width is the half of the axial width of circular raised one (8), and the spacing two (102) is spacing one (9)
Half.
3. a kind of gas metal pipe according to claim 1 or 2, which is characterized in that described metal bellows (1) housing
Have fire-retardant set (11), one end of the fire-retardant set (11) is anchored on metal bellows (1) by cutting ferrule one (12) and is connected with pipe
It is embedded with and is sealed in cutting ferrule one (12) at the outermost spacing one (9) in end and metal bellows (1) this end of connector one (2)
The other end of the sealing ring one (13) of wall, the fire-retardant set (11) is anchored on metal bellows (1) even by cutting ferrule two (14)
It is connected to be embedded at the outermost spacing one (9) in the end of pipe fitting two (3) and metal bellows (1) this end and is sealed in cutting ferrule two
(14) sealing ring two (15) of inner wall.
4. a kind of gas metal pipe according to claim 3, which is characterized in that the pipe fitting two (3) is embedded with close
Seal three (16), the cutting ferrule two (14) is riveted on pipe fitting two (3) and sealing ring three (16) is sealed in cutting ferrule two (14)
Wall.
5. a kind of gas metal pipe according to claim 4, which is characterized in that the outer end of the pipe fitting one (2) has
There is the shoulder block (21) radially turned down, the outer end of the cutting ferrule one (12) is arranged close to shoulder block (21) and the nut one
(4) cap having is located between the outer end of cutting ferrule one (12) and shoulder block (21) along one (41).
6. a kind of gas metal pipe according to claim 5, which is characterized in that the pipe fitting two (3) is cased with outside is in
The lock nut (17) of tubular, described pipe fitting two (3) outer end is in the shape of a trumpet to be contradicted for lock nut (17), the lock nut (17)
It is threaded with nut two (6), outer end of the cap that the nut two (6) has along two (61) for sealing shroud (7) contradicts, described
Sealing shroud (7) inner end insert in the outer end of pipe fitting two (3) and the inner end outer wall of sealing shroud (7) be the conical surface (71).
7. a kind of gas metal pipe according to claim 6, which is characterized in that the metal bellows (1) is stainless
Corrugated steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821394733.8U CN208634593U (en) | 2018-08-28 | 2018-08-28 | A kind of gas metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821394733.8U CN208634593U (en) | 2018-08-28 | 2018-08-28 | A kind of gas metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208634593U true CN208634593U (en) | 2019-03-22 |
Family
ID=65742071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821394733.8U Active CN208634593U (en) | 2018-08-28 | 2018-08-28 | A kind of gas metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208634593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393035A (en) * | 2020-11-11 | 2021-02-23 | 湖南天力瑞家新材科技股份有限公司 | Method for connecting pipe joint to be welded |
-
2018
- 2018-08-28 CN CN201821394733.8U patent/CN208634593U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393035A (en) * | 2020-11-11 | 2021-02-23 | 湖南天力瑞家新材科技股份有限公司 | Method for connecting pipe joint to be welded |
| CN112393035B (en) * | 2020-11-11 | 2023-07-21 | 湖南天力瑞家新材科技股份有限公司 | Connection method of pipeline joint to be welded |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317600 Xinyuan Village, Damaiyu Street, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Taizhou Tongyang Pipe Co., Ltd Address before: 317600 Xinyuan Village, Damaiyu Street, Yuhuan City, Taizhou City, Zhejiang Province Patentee before: Taizhou Tong Yang Pipe Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |