CN107269953A - Pipe connecting structure and connection method - Google Patents
Pipe connecting structure and connection method Download PDFInfo
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- CN107269953A CN107269953A CN201710511749.6A CN201710511749A CN107269953A CN 107269953 A CN107269953 A CN 107269953A CN 201710511749 A CN201710511749 A CN 201710511749A CN 107269953 A CN107269953 A CN 107269953A
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- Prior art keywords
- flange
- cylinder
- connecting tube
- articulation
- pipe connecting
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000002627 tracheal intubation Methods 0.000 claims description 12
- 240000004282 Grewia occidentalis Species 0.000 claims description 7
- 238000003032 molecular docking Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 12
- 241000233855 Orchidaceae Species 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000003679 aging effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/005—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts comprising locking means for the threaded member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
A kind of pipe connecting structure and connection method, for connecting the first connecting tube and the second connecting tube by first flange and second flange.The pipe connecting structure includes being provided with externally threaded first articulation and sets female second articulation.First articulation and second articulation can be respectively fitted over the first connecting tube and the second connecting tube, and are close to and connect by the internal thread and the external thread rotary.The first flange and second flange are arranged in the accommodating chamber that first articulation and second articulation are collectively constituted, when the first flange and second flange are screwed, the first flange and second flange are pushed out compressing, so that first connecting tube and the second connecting tube are tightly connected.The pipe connecting structure that the present invention is provided in the first flange and second flange without setting fastener hole that pipeline connection can be achieved.
Description
Technical field
The present invention relates to mechanical field, more particularly to a kind of pipe connecting structure and connection method.
Background technology
In existing pipeline docking technique, flange connection is a kind of conventional pipeline connected mode.Existing flange connects institute
The connecting bolt nut quantity needed is relatively more, wastes time and energy, and fastener hole numerous on flange reduces flange seal
Effective area.Implement in addition, existing flange connection is main among big-diameter pipeline connection, architectural limitation, small-caliber pipeline
Seldom using flange connection, because small flange arrangement is inconvenient to design fastener hole, fastener hole arrangement quantity is few and have impact on small method
The sealing of orchid connection.
The content of the invention
Based on this, it is necessary to provide a kind of pipe connecting structure and connection method, method can not be carried out by fastener hole
Orchid connection.
A kind of pipe connecting structure, including：
First articulation (110), is provided with coaxial and interconnected the first cylinder (111) and the second cylinder (112), institute
The outer wall for stating the second cylinder (112) is provided with external thread structure；
Second articulation (120), is provided with coaxial and interconnected the 3rd cylinder (123) and the 4th cylinder (124), institute
The inwall for stating the 4th cylinder (112) is provided with female thread structure；
First articulation (110) and second articulation (120) pass through the female thread structure and the outer spiral shell
Line structure is connected, and second cylinder (112) and the 4th cylinder (114) be collectively forming to form an accommodating chamber, and the of docking
One flange (20) and second flange (30) can be arranged in the accommodating chamber along its axial direction, and the first connecting tube (40) and second connects
Adapter (50) can be each passed through first cylinder (111) and the 3rd cylinder (123) and the first flange (20) and
Second flange (30) connection.
In one of the embodiments, the first flange (20) second flange (30), first connecting tube
And the external diameter of second connecting tube (50) is respectively Df1, Df2, D1 and D2, first cylinder (111), described second (40)
The internal diameter of cylinder (112), the 3rd cylinder (123) and the 4th cylinder (124) is respectively Dh1, Dh2, Dh3 and Dh4, its
In, (Df1-Dh1) >=(Dh1-D1) >=(Dh2-Df1)>0, and (Df2-Dh3) >=(Dh3-D2) >=(Dh4-Df2)>0.
In one of the embodiments, (Df1-Dh1) ÷ 2 be Dh1 2%~5%, (Dh1-D1) ÷ 2 for D1 2%~
5%, (Dh2-Df1) ÷ 2 are the 2%~5% of Df1, and (Df2-Dh3) ÷ 2 is the 2%~5% of Dh3, and (Dh3-D2) ÷ 2 is D2's
2%~5% and (Dh4-Df2) ÷ 2 is the 2%~5% of Df2.
In one of the embodiments, first cylinder (111) and second cylinder (112) connect and form
One step plane (113), the first flange (20) can be against axially adjacent to the end face of first connecting tube (40) along it
In on the first step plane (113).
In one of the embodiments, second articulation (120) is additionally provided with the 5th cylinder (125), the described 3rd
Cylinder (123), the 5th cylinder (125) and the 4th cylinder (124) is sequentially connected and internal diameter increases successively, described
The internal diameter Dh5 of five cylinders (125) is more than the outer diameter D f2 of the second flange (30).
In one of the embodiments, the internal diameter Dh5 of the 5th cylinder (125) is equal to second cylinder (112)
Internal diameter Dh2.
In one of the embodiments, the 3rd cylinder (123) and the 5th cylinder (125) form second step and put down
Face (126), the second flange (30) can be resisted against described along it axially adjacent to the end face of second connecting tube (40)
On two step planes (126).
In one of the embodiments, the pipe connecting structure (10) further comprises seal (130), the sealing
Part (130) includes annular gasket (132) and two intubations (134), and described two intubations (134) are respectively arranged at the air ring
The through hole two ends of piece (132)；The annular gasket (132) is used to be arranged at the first flange (20) and the second flange
(30) between, described two intubations (134) are used to insert first connecting tube (40) and second connecting tube (50) respectively.
In one of the embodiments, the outer wall of first cylinder (111) is outer anistree, outer-hexagonal or outer corner knot
Structure, the outer wall of second articulation (120) is outer anistree, outer-hexagonal or outer four-corner structure.
A kind of pipe connecting method of the above-mentioned pipe connecting structure of application, including：
One end is provided and is provided with first connecting tube (40) of the first flange (20), and one end be provided with it is described
The second connecting tube (50) of second flange (30)；
The seal (130) is arranged between the first flange (20) and the second flange (30)；
First articulation (110) is enclosed on to the outer wall of first connecting tube (40), and holds the first flange (20)
It is placed in second cylinder (112), second articulation (120) is enclosed on to the outer wall of second connecting tube (50), and
The second flange (30) is set to be placed in the 4th cylinder (124)；And
By the external thread structure and the female thread structure, first articulation (110) is screwed in described second
In articulation (120), after screwing will first connecting tube (40) and second connecting tube (50) be tightly connected.
In one of the embodiments, the seal (130) is arranged at the first flange (20) and described second
The step of between flange (30), includes：The intubation (134) at the annular gasket (132) two ends is inserted into first connection respectively
Manage (40) and second connecting tube (50), and make the annular gasket (132) be arranged at the first flange (20) with it is described
Between second flange (30).
Pipe connecting structure and connection method that the present invention is provided：(1) without setting fastener hole to be that can be achieved on flange
Being tightly connected for two pipelines, substantially increases the effective area of flange seal, improves the sealing property between two pipelines；
(2) cause flange connection to can be applied not only to the connection of large aperture pipeline, can also be applied to the connection of small-bore pipeline；
(3) compared with structure being directly threaded on two pipelines the connected mode of threaded connection is fixed, to two pipelines
Axiality is less demanding, because the pipe connecting structure is removably attached on two pipelines, is deposited between two pipelines
In fit clearance, the axiality of two pipelines coordinates bad, can be realized and eliminated by this fit clearance；(4) in the pipe
In road Hermetical connecting structure, in the accommodating chamber of seal (being usually rubber seal) in near-hermetic formula, completely cut off ultraviolet
The harmful substances such as line, corrosive gas liquid, the influence such as its ageing properties of outer bound pair is little, so as to improve making for seal
Use the life-span；(5) to the applying power of flange arrangement and seal evenly, it is more beneficial for sealing；(6) can be periodically to being removably attached to pipeline
On the pipe connecting structure implement fastening check, can make up rubber seal elasticity weaken influence；(7) installing/dismounting
It is simple and convenient.
Brief description of the drawings
The sectional structure of facing of the first connecting tube and the second connecting tube after the connection sealing that Fig. 1 provides for the present invention is illustrated
Figure；
The positive structure diagram of the first connecting tube and the second connecting tube after the connection sealing that Fig. 2 provides for the present invention；
The left view structural representation of the first connecting tube and the second connecting tube after the connection sealing that Fig. 3 provides for the present invention；
The configuration schematic diagram of the first connecting tube and the second connecting tube after the connection sealing that Fig. 4 provides for the present invention；
Fig. 5 A and Fig. 5 B are respectively that sectional structure signal is faced in the first articulation for providing of the present invention and the second articulation
Figure.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, by the following examples, and with reference to attached
Figure, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only to explain this hair
It is bright, it is not intended to limit the present invention.
Also referring to Fig. 1 to Fig. 5, a kind of pipe connecting structure 10, for passing through first flange 20 and second flange 30
Connect the first connecting tube 40 and the second connecting tube 50.The pipe connecting structure 10 includes the first articulation 110 and the second loose joint
First 120.First articulation 110 and second articulation 120 can be hollow tubular structure.First articulation
110 settable have the first cylinder 111 and the second cylinder 112.First cylinder 111 and second cylinder 112 can coaxially be set
Put and be interconnected.The outer wall of second cylinder 112 is settable external thread structure (not shown).Second articulation
120 settable have the 3rd cylinder 123 and the 4th cylinder 124.3rd cylinder 123 and the 4th cylinder 124 can coaxially be set
Put and be interconnected.The inwall of 4th cylinder 124 is settable the female thread structure matched with the external thread structure
(not shown).First articulation 110 and second articulation 120 can pass through the female thread structure and the external screw thread
Structure is connected.Second cylinder 112 and the 4th cylinder 114 can be collectively forming an accommodating chamber.First method of docking
Orchid 20 and second flange 30 can be arranged in the accommodating chamber along its axial direction.The connecting tube 50 of first connecting tube 40 and second
First cylinder 111 and the 3rd cylinder 123 and the first flange 20 and the second flange 30 can be each passed through
Connection.
The pipe connecting structure that the present invention is provided：(1) without setting fastener hole to be that two pipelines can be achieved on flange
It is tightly connected, substantially increases the effective area of flange seal, improves the sealing property between two pipelines；(2) make to do in the proper way
Orchid connection can be applied not only to the connection of large aperture pipeline, can also be applied to the connection of small-bore pipeline；(3) and at two
Structure is directly threaded on pipeline the connected mode of threaded connection is fixed and compared, to the axiality requirements of two pipelines not
, because the pipe connecting structure is removably attached on two pipelines, there is fit clearance, two between two pipelines in height
The axiality of individual pipeline coordinates bad, can be realized and eliminated by this fit clearance；(4) in the seal for pipe joints attachment structure
In, in the accommodating chamber of seal (being usually rubber seal) in near-hermetic formula, completely cut off ultraviolet, corrosive gas liquid
The harmful substances such as body, the influence such as its ageing properties of outer bound pair is little, so as to improve the service life of seal；(5) to method
Blue structure and the applying power of seal evenly, are more beneficial for sealing；(6) periodically the pipeline being removably attached on pipeline can be connected
Binding structure is implemented fastening and checked, can make up the influence that rubber seal elasticity weakens；(7) installing/dismounting is simple and convenient.
The internal diameter Dh1 of first cylinder 111 can be more than the outer diameter D 1 of first connecting tube 40, to cause described first
Articulation 110 can be enclosed on one end of first connecting tube 40 by first cylinder 111.3rd cylinder 123 it is interior
Footpath Dh3 can be more than the outer diameter D 2 of second connecting tube 50, to cause second articulation 120 can be by the 3rd cylinder
123 are enclosed on one end of second connecting tube 50.
The internal diameter Dh2 of second through hole 112 can be more than the outer diameter D f1 and the second flange 30 of the first flange 20
Outer diameter D f2, and the first flange 20 outer diameter D f1 can be more than the first through hole 111 internal diameter Dh1.Second method
The outer diameter D f2 of orchid 30 can be more than the internal diameter Dh3 of the third through-hole 123, to cause the first flange 20 and second method
Orchid 30 can axially receive along it and be arranged in the accommodating chamber, and respectively with the connecting tube 50 of the first connecting tube 40 and second
Connection.Seal 130 can be also contained in the accommodating chamber, and is arranged between the first flange 20 and second flange 30.
By screwing the female thread structure and external thread structure, the first flange 20 and the second flange 30 can be made described
Gradually push close under the active force of one cylinder 111 and the 3rd cylinder 123, the seal 130 is by the first flange
20 and the extruding of second flange 30 until realize being tightly connected for the connecting tube 50 of the first connecting tube 40 and second, in addition, screwing
The pipe connecting structure 10 can be fastened in the first flange 20 and the second flange 30 so that can not be from described
First connecting tube 40 or second connecting tube 50 are skidded off.
Preferably, (Df1-Dh1) >=(Dh1-D1) >=(Dh2-Df1)>0, and, (Df2-Dh3) >=(Dh3-D2) >=(Dh4-
Df2)>0, after being tightly connected the connecting tube 50 of the first connecting tube 40 and second, unilateral gap width (Df1-Dh1) ÷
2≥(Dh1-D1)÷2≥(Dh2-Df1)÷2>0, and (Df2-Dh3) ÷ 2 >=(Dh3-D2) ÷ 2 >=(Dh4-Df2) ÷ 2>0, this
When move the connecting tube 50 of the first connecting tube 40 and second anyway, can not also make the pipe connecting structure 10 from described
First connecting tube 40 is skidded off with the second connecting tube 50, further ensures the company of the connecting tube 50 of the first connecting tube 40 and second
Connect reliability.
Preferably, above-mentioned unilateral gap width (Df1-Dh1) ÷ 2 is the 2%~5% of Dh1, and (Dh1-D1) ÷ 2 is the 2% of D1
~5%, (Dh2-Df1) ÷ 2 are the 2%~5% of Df1, and (Df2-Dh3) ÷ 2 is the 2%~5% of Dh3, and (Dh3-D2) ÷ 2 is D2
2%~5% and (Dh4-Df2) ÷ 2 be Df2 2%~5%.The scope can not only ensure the pipe connecting structure
The connection reliability of 10 pairs of first connecting tubes 40 and second connecting tube 50, and can preferably eliminate described first
Connecting tube 40 and the axiality difference of second connecting tube 50, that is to say, that even if first connecting tube 40 and described second
The axiality of connecting tube 50 is poor, first connecting tube 40 and second connecting tube 50 is realized that preferably sealing connects
Connect.
Refer to Fig. 5 A, it is preferable that first cylinder 111 and second cylinder 112 connect and form First
Rank plane 113, the first flange 20 can be resisted against the First along its end face axially adjacent to first connecting tube 40
In rank plane 113, so that first cylinder 111 can be applied by 113 pairs of the first step plane first flange 20
Plus active force.
Refer to Fig. 5 B, it is preferable that also set up the 5th cylinder between the 3rd cylinder 123 and the 4th cylinder 124
125, the 3rd cylinder 123, the 5th cylinder 125 and the 4th cylinder 124 are sequentially connected.5th cylinder
125 internal diameter Dh5 is more than the outer diameter D f2 of the second flange 30.The internal diameter Dh5 of 5th cylinder 125 is more than the described 3rd
The internal diameter Dh3 of through hole 123 and the internal diameter Dh4 for being less than the 4th cylinder 124.Due to the internal diameter Dh4 of the 4th cylinder 124
Much larger than the outer diameter D f2 of the second flange 30, in one end close to second connecting tube 50, the 4th cylinder 124 with
There is larger gap between the second flange 30, by setting the 5th cylinder 125, the second articulation can be shortened
Gap width between 120 and the second flange 30, is more beneficial for ensureing the connection reliability of the pipe connecting structure 10.It is excellent
Selection of land, the 3rd cylinder 123 and the 5th cylinder 125 connect and form second step plane 126, the second flange
30 can be resisted against in the second step plane 126 along it axially adjacent to the end face of second connecting tube 50, so that described
Three cylinders 123 can apply active force by 126 pairs of the second step plane second flange 30.It is further preferable that institute
The internal diameter Dh5 for stating the 5th cylinder 125 is equal to the internal diameter Dh2 of second cylinder 112.
When the outer diameter D 1 of first connecting tube 40 is identical with the outer diameter D 2 of second connecting tube 50, described first
The internal diameter Dh1 of body 111 can be identical with the internal diameter Dh3 of the 3rd cylinder 123.The outer diameter D f1 of the first flange 20 can be with institute
The outer diameter D f2 for stating second flange 30 is identical.
Settable there is outer anistree, outer-hexagonal or outer one end that first articulation 110 is provided with first cylinder 111
Four-corner structure, to facilitate the fastening pipe connecting structure 10.Preferably, the outer wall of first cylinder 111 may be configured as
Outer anistree, outer-hexagonal or outer four-corner structure.One end that second articulation 120 is provided with the 3rd cylinder 123 can be set
There are outer anistree, outer-hexagonal or outer four-corner structure, to facilitate the fastening pipe connecting structure 10.Preferably, whole described second
The outer wall of articulation 120 is provided with outer anistree, outer-hexagonal or outer four-corner structure.
Referring to Fig. 4, the pipe connecting structure 10 can further comprise the seal 130.The seal 130 can
Including annular gasket 132, the annular gasket 132 is used to be arranged at first connecting pipe 40 and second connecting pipe
Between 50.The external diameter of the annular gasket 132 can be with the first flange 20 outer diameter D f1 and the external diameter of the second flange 30
Df2 is essentially identical.Preferably, the external diameter of the annular gasket 132 is slightly less than the outer diameter D f1 and described of the first flange 20
The outer diameter D f2 of two flanges 30.The seal 130 can further comprise two intubations 134, be respectively arranged at the annular gasket
132 through hole two ends.The seal 130 can insert first connecting pipe 40 and institute respectively by this two intubations 134
State in the second connecting pipe 50, now, when installing the pipe connecting structure 10, come off without the worry seal 130,
The problems such as positioning is inaccurate.The external diameter of described two intubations 134 can connect with the outer diameter D 1 of first connecting tube 40 and described second
The outer diameter D 2 of adapter 50 is essentially identical.
The present invention further provides a kind of pipe connecting method, including,
S1 is provided with second flange 30 there is provided the first connecting tube 40 that one end is provided with first flange 20, and one end
Second connecting tube 50；
S2, seal 130 is arranged between the first flange 20 and the second flange 30；
S3, the first articulation 110 is enclosed on the outer wall of first connecting tube 40, and is placed in the first flange 20
In second cylinder 112, the second articulation 120 is enclosed on to the outer wall of second connecting tube 50, and makes the second flange
30 are placed in the 4th cylinder 124；
S4, by the external thread structure and the female thread structure, described second is screwed in by first articulation 110
In articulation 120, after screwing will first connecting tube 40 and second connecting tube 50 be tightly connected.
In step sl, the first flange 20 and the second flange 30 can be fixedly installed on first connection respectively
One end of the connecting tube 50 of pipe 40 and second.The first flange 20 and the second flange 30 can be connected by welding or screw thread respectively
The mode connect is fixedly installed on one end of the connecting tube 50 of the first connecting tube 40 and second.The first flange 20 and described
Two flanges 30 can also be wholely set with the connecting tube 50 of the first connecting tube 40 and second respectively, for example can be directly to described
One connecting tube 40 and the second connecting tube 50 carry out flange to obtain the first flange 20 and the second flange 30.
In step s 2, can be by the way that the intubation 134 at the two ends of annular gasket 132 be inserted into first connecting tube respectively
40 and second connecting tube 50, and the annular gasket 132 is arranged at the first flange 20 and the second flange 30
Between, the seal 130 is arranged between the first flange 20 and the second flange 30.Set in this way
The seal 130 is put, the problems such as positioning of seal 130 is forbidden, easily come off can be avoided.
In step s 4, it can apply certain moment of torsion to screw the He of the first articulation 110 by outside fastening tool
Second articulation 120.In the screwing operations, the first flange 20 and the second flange 30 are at described first
Gradually pushed under the active force of body 111 and the 3rd cylinder 123 it is close, until realizing that first connecting tube 40 and second connects
Adapter 50 is tightly connected.
The pipe connecting method that the present invention is provided, easily operation, it is easy to promote, be both applicable to the sealing of large-diameter pipeline
Connection, is equally applicable to being tightly connected for small diameter pipeline.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (11)
1. a kind of pipe connecting structure, it is characterised in that including：
First articulation (110), is provided with coaxial and interconnected the first cylinder (111) and the second cylinder (112), described
The outer wall of two cylinders (112) is provided with external thread structure；
Second articulation (120), is provided with coaxial and interconnected the 3rd cylinder (123) and the 4th cylinder (124), described
The inwall of four cylinders (112) is provided with female thread structure；
First articulation (110) and second articulation (120) pass through the female thread structure and the external screw thread knot
Structure is connected, and second cylinder (112) and the 4th cylinder (124) are collectively forming to form an accommodating chamber, the first method of docking
Blue (20) and second flange (30) can be arranged in the accommodating chamber along its axial direction, the first connecting tube (40) and the second connecting tube
(50) first cylinder (111) and the 3rd cylinder (123) and the first flange (20) can be each passed through and described
Second flange (30) is connected.
2. pipe connecting structure according to claim 1, it is characterised in that the first flange (20), second method
The external diameter of blue (30), first connecting tube (40) and second connecting tube (50) is respectively Df1, Df2, D1 and D2, described
First cylinder (111), second cylinder (112), the 3rd cylinder (123) and the internal diameter of the 4th cylinder (124) point
Not Wei Dh1, Dh2, Dh3 and Dh4, wherein, (Df1-Dh1) >=(Dh1-D1) >=(Dh2-Df1)>0, and (Df2-Dh3) >=(Dh3-
D2)≥(Dh4-Df2)>0。
3. pipe connecting structure according to claim 2, it is characterised in that (Df1-Dh1) ÷ 2 is the 2%~5% of Dh1,
(Dh1-D1) ÷ 2 is the 2%~5% of D1, and (Dh2-Df1) ÷ 2 is the 2%~5% of Df1, and (Df2-Dh3) ÷ 2 is the 2% of Dh3
~5%, (Dh3-D2) ÷ 2 are the 2%~5% of D2 and (Dh4-Df2) ÷ 2 is the 2%~5% of Df2.
4. pipe connecting structure according to claim 1, it is characterised in that first cylinder (111) and described second
Cylinder (112) connects and forms first step plane (113), and the first flange (20) connects along it axially adjacent to described first
The end face of adapter (40) can be resisted against on the first step plane (113).
5. pipe connecting structure according to claim 1, it is characterised in that second articulation (120) is additionally provided with
5th cylinder (125), the 3rd cylinder (123), the 5th cylinder (125) and the 4th cylinder (124) connect successively
Connect and internal diameter increases successively, the internal diameter Dh5 of the 5th cylinder (125) is more than the outer diameter D f2 of the second flange (30).
6. pipe connecting structure according to claim 5, it is characterised in that internal diameter Dh5 of the 5th cylinder (125) etc.
In the internal diameter Dh2 of second cylinder (112).
7. pipe connecting structure according to claim 5, it is characterised in that the 3rd cylinder (123) and the described 5th
Cylinder (125) formation second step plane (126), the second flange (30) is along it axially adjacent to second connecting tube (50)
End face can be resisted against on the second step plane (126).
8. pipe connecting structure according to claim 1, it is characterised in that the pipe connecting structure (10) is further wrapped
Seal (130) is included, the seal (130) includes annular gasket (132) and two intubations (134), described two intubations
(134) the through hole two ends of the annular gasket (132) are respectively arranged at；The annular gasket (132) is used to be arranged at described the
Between one flange (20) and the second flange (30), described two intubations (134) are used to insert first connecting tube respectively
And second connecting tube (50) (40).
9. pipe connecting structure according to claim 1, it is characterised in that the outer wall of first cylinder (111) is outer
Anistree, outer-hexagonal or outer four-corner structure, the outer wall of second articulation (120) is outer anistree, outer-hexagonal or outer four-corner structure.
10. a kind of pipe connecting method applied such as pipe connecting structure according to any one of claims 1 to 9, including：
First connecting tube (40) that one end is provided with the first flange (20) is provided, and one end is provided with described second
The second connecting tube (50) of flange (30)；
The seal (130) is arranged between the first flange (20) and the second flange (30)；By described first
Articulation (110) is enclosed on the outer wall of first connecting tube (40), and the first flange (20) is placed in described second
In body (112), second articulation (120) is enclosed on to the outer wall of second connecting tube (50), and makes the second flange
(30) it is placed in the 4th cylinder (124)；And
By the external thread structure and the female thread structure, first articulation (110) is screwed in into second loose joint
In head (120), after screwing will first connecting tube (40) and second connecting tube (50) be tightly connected.
11. pipe connecting method according to claim 10, it is characterised in that the seal (130) is arranged at institute
The step of stating between first flange (20) and the second flange (30) includes：
The intubation (134) at the annular gasket (132) two ends is inserted into first connecting tube (40) and described second respectively to connect
Take over (50), and the annular gasket (132) is arranged between the first flange (20) and the second flange (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710511749.6A CN107269953A (en) | 2017-06-27 | 2017-06-27 | Pipe connecting structure and connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710511749.6A CN107269953A (en) | 2017-06-27 | 2017-06-27 | Pipe connecting structure and connection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107269953A true CN107269953A (en) | 2017-10-20 |
Family
ID=60070739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710511749.6A Pending CN107269953A (en) | 2017-06-27 | 2017-06-27 | Pipe connecting structure and connection method |
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| Country | Link |
|---|---|
| CN (1) | CN107269953A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4621841A (en) * | 1981-05-15 | 1986-11-11 | Corning Limited | Tubular coupler with retainer |
| JPH06241362A (en) * | 1993-02-19 | 1994-08-30 | T H I Syst Kk | Fluid pipe joint |
| JPH08100875A (en) * | 1994-09-30 | 1996-04-16 | Nec Corp | Pipe joint |
| CN202708384U (en) * | 2012-08-23 | 2013-01-30 | 四川川润液压润滑设备有限公司 | Non-welding flaring type seal pipe joint structure |
| CN205534727U (en) * | 2016-03-23 | 2016-08-31 | 潘汝标 | Metal pipeline connecting device |
| CN206889899U (en) * | 2017-06-27 | 2018-01-16 | 珠海格力电器股份有限公司 | Pipe connecting structure |
-
2017
- 2017-06-27 CN CN201710511749.6A patent/CN107269953A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4621841A (en) * | 1981-05-15 | 1986-11-11 | Corning Limited | Tubular coupler with retainer |
| JPH06241362A (en) * | 1993-02-19 | 1994-08-30 | T H I Syst Kk | Fluid pipe joint |
| JPH08100875A (en) * | 1994-09-30 | 1996-04-16 | Nec Corp | Pipe joint |
| CN202708384U (en) * | 2012-08-23 | 2013-01-30 | 四川川润液压润滑设备有限公司 | Non-welding flaring type seal pipe joint structure |
| CN205534727U (en) * | 2016-03-23 | 2016-08-31 | 潘汝标 | Metal pipeline connecting device |
| CN206889899U (en) * | 2017-06-27 | 2018-01-16 | 珠海格力电器股份有限公司 | Pipe connecting structure |
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Application publication date: 20171020 |