CN208687173U - The sealing structure of ventilation gas pipe and valve - Google Patents
The sealing structure of ventilation gas pipe and valve Download PDFInfo
- Publication number
- CN208687173U CN208687173U CN201821437397.0U CN201821437397U CN208687173U CN 208687173 U CN208687173 U CN 208687173U CN 201821437397 U CN201821437397 U CN 201821437397U CN 208687173 U CN208687173 U CN 208687173U
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- gas pipe
- valve
- annular flange
- ring
- nationality
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Abstract
The utility model discloses the sealing structures of ventilation gas pipe and valve, including gas pipe, and the valve connecting with one end of gas pipe；One end that gas pipe is connect with valve is equipped with diametrically outwardly extending annular flange structure on the tube wall at proximal port；It is sealed between gas pipe and valve equipped with O-ring, and surrounds an annular space between annular flange structure and the valve air inlet of valve and constrain and squeeze O-ring formation sealing；Gas pipe nationality is formed a fixed connection by gas pipe fixinig plate with valve；Gas pipe fixinig plate is equipped with an internal diameter and is greater than coal gas pipe outside diameter, but is less than the mounting hole of annular flange construction profile size；Gas pipe is through in mounting hole, and one end with annular flange structure is pressed into valve air inlet by gas pipe fixinig plate by nationality.The utility model can be convenient, quickly be attached gas pipe and valve, and junction can guarantee reliable air-tightness.
Description
Technical field
The utility model relates to gas pipeline interconnection technique fields, in particular to the sealing knot of ventilate gas pipe and valve
Structure.
Background technique
The connecting structure of existing air inlet gas pipe and valve is more complicated, as shown in Figure 5: gas pipe passes through nut and valve
The valve air inlet and gasket of door are tightly pressed together, and by pretightning force by pipeline compressive strain in the shape of a trumpet, are carried out with this
Sealing.
In practical applications, this mode has two:
1. using spiral marking connection, structure is complicated, and air-tightness is not easy to guarantee；
2. the easy stripped thread of being dismounted for multiple times rear thread and lead to gas leakage, influence service performance.
Therefore, it is necessary to improve to the sealing structure between existing ventilation gas pipe and valve, guaranteeing junction
Under the premise of can guaranteeing reliable air-tightness, the connection speed of gas pipe and valve is improved.
Utility model content
In view of the above drawbacks of the prior art, the utility model provides the sealing structure of ventilation gas pipe and valve, real
The existing first purpose is to can be convenient, quickly be attached gas pipe and valve, and junction can guarantee reliably
Air-tightness.
To achieve the above object, the utility model discloses the sealing structure of ventilation gas pipe and valve, including gas pipe,
And the valve being connect with one end of the gas pipe.
Wherein, one end that the gas pipe is connect with the valve is equipped with diametrically on the tube wall at proximal port
Outwardly extending annular flange structure.
It is sealed between the gas pipe and the valve equipped with O-ring, and the annular flange structure and the valve
It surrounds an annular space between the valve air inlet of door and constrains and squeeze the O-ring and form the sealing.
The gas pipe nationality is formed a fixed connection by gas pipe fixinig plate and the valve；
The gas pipe fixinig plate is equipped with an internal diameter and is greater than the coal gas pipe outside diameter, but is less than the annular flange structure
The mounting hole of outer dimension.
The gas pipe is through in the mounting hole, and nationality will have the one of annular flange structure by the gas pipe fixinig plate
Side pressure enters the valve air inlet.
Preferably, by impact style, the tube wall for squeezing the gas pipe is formed the annular flange structure nationality.
Preferably, washer is equipped between the annular flange structure and the O-ring.
Preferably, one end that the gas pipe is connect with the valve is set there are two the annular flange structure, the O shape
Circle is set between two annular flange structures.
Preferably, one end that the gas pipe is connect with the valve is equipped with multiple annulars uniformly distributed along its length
An O-ring is arranged between annular flange structure described in every two in flange arrangement.
Preferably, the gas pipe fixinig plate nationality is fixed on the valve by bolt in a manner of screw threads for fastening.
The utility model has the beneficial effects that
The utility model can be convenient, quickly be attached gas pipe and valve, and can guarantee can for junction
The air-tightness leaned on.
The structural strength of the utility model is higher, and O-ring can be replaced in time after removal, even if sealing structure is through excessive
Secondary dismounting will not fail, more stable safety.
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of an embodiment of the present invention.
Fig. 2 shows the utility model one with there are two the gas pipe example structure schematic diagrams of annular flange structure.
Fig. 3 shows the utility model one with there are three the gas pipe example structure schematic diagrams of annular flange structure.
Fig. 4 shows the gas pipe example structure schematic diagram that the utility model one has an annular flange structure.
Fig. 5 shows the schematic diagram of gas pipe in the prior art and valve connecting structure.
Specific embodiment
Embodiment
As shown in Figures 1 to 4, the sealing structure of ventilation gas pipe and valve, including gas pipe 1, and one with gas pipe 1
Hold the valve 2 of connection.
Wherein, one end that gas pipe 1 is connect with valve 2 is equipped on the tube wall at proximal port diametrically to extension
The annular flange structure 3 stretched.
It is equipped with O-ring 4 between gas pipe 1 and valve 2 to be sealed, and the valve air inlet of annular flange structure 3 and valve 2
An annular space is surrounded between mouth 5 to constrain and squeeze the formation sealing of O-ring 4.
1 nationality of gas pipe is formed a fixed connection by gas pipe fixinig plate 6 and valve 2；
Gas pipe fixinig plate 6 is equipped with an internal diameter and is greater than 1 outer diameter of gas pipe, but is less than 3 outer dimension of annular flange structure
Mounting hole.
Gas pipe 1 is through in mounting hole, and one end with annular flange structure 3 is pressed into valve by gas pipe fixinig plate 6 by nationality
Door air inlet 5.
The principles of the present invention are, by surrounding one between annular flange structure 3 and the valve air inlet 5 of valve 2
A annular space, which constrains and squeezes O-ring 4, forms sealing, can easily and fast be attached gas pipe and valve, and
Junction can guarantee reliable air-tightness.
Moreover, O-ring 4 can be replaced in time after removal, even if sealing structure will not be lost by being dismounted for multiple times
Effect, more stable safety.
In certain embodiments, by impact style, the tube wall for squeezing gas pipe 1 is formed 3 nationality of annular flange structure.
In certain embodiments, washer 8 is equipped between annular flange structure 3 and O-ring 4.
In certain embodiments, one end that gas pipe 1 is connect with valve 2 is set there are two annular flange structure 3, and O-ring 4 is set
It is placed between two annular flange structures 3.
In certain embodiments, one end that gas pipe 1 is connect with valve 2 is equipped with multiple loop methods uniformly distributed along its length
An O-ring 4 is arranged between every two annular flange structure 3 for blue structure 3.
In certain embodiments, 6 nationality of gas pipe fixinig plate is fixed on valve 2 by bolt in a manner of screw threads for fastening.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (6)
1. the sealing structure of ventilate gas pipe and valve, including gas pipe (1), and connect with one end of the gas pipe (1)
Valve (2)；It is characterized in that, one end that the gas pipe (1) connect with the valve (2), on the tube wall at proximal port,
Equipped with diametrically outwardly extending annular flange structure (3)；
It is equipped with O-ring (4) between the gas pipe (1) and the valve (2) to be sealed, and the annular flange structure (3)
An annular space is surrounded between the valve air inlet (5) of the valve (2) to constrain and squeeze the O-ring (4) formation institute
State sealing；
Gas pipe (1) nationality is formed a fixed connection by gas pipe fixinig plate (6) and the valve (2)；
The gas pipe fixinig plate (6) is equipped with an internal diameter and is greater than the gas pipe (1) outer diameter, but is less than the annular flange knot
The mounting hole of structure (3) outer dimension；
The gas pipe (1) is through in the mounting hole, and nationality will have annular flange structure by the gas pipe fixinig plate (6)
(3) one end is pressed into the valve air inlet (5).
2. the sealing structure of ventilation gas pipe and valve according to claim 1, which is characterized in that the annular flange knot
By impact style, the tube wall for squeezing the gas pipe (1) is formed structure (3) nationality.
3. the sealing structure of ventilation gas pipe and valve according to claim 1, which is characterized in that the annular flange knot
Washer (8) are equipped between structure (3) and the O-ring (4).
4. the sealing structure of ventilation gas pipe and valve according to claim 1, which is characterized in that the gas pipe (1)
The one end connecting with the valve (2) is set there are two the annular flange structure (3), and the O-ring (4) is set to described in two
Between annular flange structure (3).
5. the sealing structure of ventilation gas pipe and valve according to claim 1, which is characterized in that the gas pipe (1)
The one end connecting with the valve (2) is equipped with multiple annular flange structures (3) uniformly distributed along its length, described in every two
One O-ring (4) is set between annular flange structure (3).
6. the sealing structure of ventilation gas pipe and valve according to claim 1, which is characterized in that the gas pipe is fixed
Piece (6) nationality is fixed on the valve (2) by bolt in a manner of screw threads for fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821437397.0U CN208687173U (en) | 2018-09-04 | 2018-09-04 | The sealing structure of ventilation gas pipe and valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821437397.0U CN208687173U (en) | 2018-09-04 | 2018-09-04 | The sealing structure of ventilation gas pipe and valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208687173U true CN208687173U (en) | 2019-04-02 |
Family
ID=65888305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821437397.0U Active CN208687173U (en) | 2018-09-04 | 2018-09-04 | The sealing structure of ventilation gas pipe and valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208687173U (en) |
-
2018
- 2018-09-04 CN CN201821437397.0U patent/CN208687173U/en active Active
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