CN219692503U - Joint for gas pipeline - Google Patents

Abstract

The utility model discloses a gas pipeline joint technology, aiming at providing a joint for a gas pipeline, which is characterized by comprising a joint body used for being connected with the gas pipeline, wherein an external thread is arranged at a pipe orifice of the gas pipeline, an internal thread matched with the external thread is arranged on the joint body, a sealing structure used for sealing the joint body and the gas pipeline is arranged between the joint body and the gas pipeline, and the sealing structure comprises a joint sealing ring arranged on the end face of the joint body and a pipeline sealing ring which is arranged on the gas pipeline and is matched with the joint sealing ring; the pipeline sealing ring is located the end of external screw thread, and the quantity of joint sealing ring and pipeline sealing ring is a plurality of. Through the cooperation of the sealing structure and the sealing gasket, the defect that the existing gas pipeline and the joint body are low in connection tightness and safety can be improved, so that the gas pipeline and the joint body have better tightness and safety. The utility model is suitable for the technical field of gas pipeline joints.

Description

Joint for gas pipeline

Technical Field

The utility model relates to a gas pipeline joint technology, in particular to a joint for a gas pipeline.

Background

The fuel gas is a general term of gas fuel, and is mainly natural gas, artificial fuel gas, liquefied petroleum gas, biogas and coal gas.

It is well known that a gas pipeline joint is an essential connecting piece in the gas pipeline laying process and is used for carrying out sealing connection on two gas pipelines, if gas leakage is caused due to poor sealing performance of the gas pipeline joint, a large safety accident can be caused, so that the requirement on the sealing performance is extremely high, and the defects of complex structure, poor sealing effect and low safety of the conventional gas pipeline joint generally exist.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a joint for a gas pipeline.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the joint for the gas pipeline comprises a joint body used for being connected with the gas pipeline, wherein an external thread is arranged at the pipe orifice of the gas pipeline, an internal thread matched with the external thread is arranged on the joint body, a sealing structure used for enabling the joint body and the gas pipeline to be in a sealing state is arranged between the joint body and the gas pipeline, and the sealing structure comprises a joint sealing ring arranged on the end face of the joint body and a pipeline sealing ring which is arranged on the gas pipeline and matched with the joint sealing ring; the pipeline sealing ring is located the end of external screw thread, and the quantity of joint sealing ring and pipeline sealing ring is a plurality of.

The utility model is further provided with: the number of the joint sealing rings is a plurality, the plurality of the joint sealing rings are arranged in parallel at intervals, and joint buffer rings are arranged in the gaps between every two joint sealing rings.

The utility model is further provided with: and a pipeline buffer ring is arranged in the gap between every two pipeline sealing rings, and the joint buffer ring and the pipeline buffer ring are made of sponge or rubber.

The utility model is further provided with: a sealing gasket is further arranged between the gas pipeline and the threaded connection part of the joint body, and an integrally formed annular groove is formed in the outer surface of the sealing gasket.

The utility model is further provided with: and a metal ring is embedded in the annular groove.

The utility model is further provided with: the thickness of the annular groove is one third of the thickness of the sealing gasket, and the depth of the annular groove is two thirds of the width of the sealing gasket.

The utility model is further provided with: an annular ring groove for installing a sealing gasket is formed in the middle of the external thread of the gas pipeline.

The utility model is further provided with: the whole of the joint body is of a T-shaped structure.

The beneficial effects of the utility model are as follows:

1. compared with the prior art, the joint for the gas pipeline has the advantages that the sealing structure for sealing the joint body and the gas pipeline is arranged between the joint body and the gas pipeline, so that the gas pipeline can be in threaded fit with the joint body and can be in sealing connection again through the sealing structure, the sealing performance is good, safety accidents are prevented, and the safety is high.

2. According to the connector for the gas pipeline, the sealing gasket is further arranged between the threaded connection part of the gas pipeline and the connector body, the annular groove which is integrally formed is formed in the outer surface of the sealing gasket, and the metal ring is embedded in the annular groove, so that the threaded connection is more firm, the sealing performance is further improved, gas leakage is prevented, the connector is not easy to deform, new replacement is not needed each time, the connector is convenient, durable and attractive, and if the sealing gasket is aged, only the sealing gasket is needed to be replaced, the metal ring is not needed to be replaced, and the cost is saved.

3. According to the utility model, through the matched use of the sealing structure and the sealing gasket, the defects of poor sealing effect and low safety of the connection of the gas pipeline and the joint body in the prior art are further improved, so that the gas pipeline joint has better sealing performance and safety.

4. The utility model has simple structure, convenient manufacture and simple and convenient operation, avoids the defects in the prior art, and is suitable for popularization, implementation and application.

Drawings

Fig. 1 is a structural view of a joint gas pipe and a joint body for gas pipe fastening connection according to the present utility model.

Fig. 2 is an enlarged partial view of the joint for gas piping of the present utility model at the portion a in fig. 1.

Fig. 3 is a structural view of a joint sealing gasket and a metal ring for a gas pipe according to the present utility model.

Fig. 4 is a perspective view of the joint body for a gas pipeline according to the present utility model.

Fig. 1-4 reference numerals: 1. a gas pipeline; 2. a joint body; 3. an external thread; 4. an internal thread; 5. a joint seal ring; 6. a pipe seal ring; 7. a joint buffer ring; 8. a pipe buffer ring; 9. a sealing gasket; 10. an annular groove; 11. a metal ring; 12. an annular ring groove.

Detailed Description

Embodiments of the fitting for gas piping of the present utility model are further described with reference to fig. 1-4.

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

The joint for the gas pipeline shown in fig. 1 to 4 comprises a joint body 2 used for being connected with a gas pipeline 1, an external thread 3 is arranged at a pipe orifice of the gas pipeline 1, an internal thread 4 matched with the external thread 3 is arranged on the joint body 2, and a sealing structure used for enabling the joint body 2 and the gas pipeline 1 to be in a sealing state is arranged between the joint body 2 and the gas pipeline 1; the pipeline sealing rings 6 are positioned at the tail ends of the external threads 3, the number of the joint sealing rings 5 and the pipeline sealing rings 6 is a plurality, and the joint sealing rings 5 and the pipeline sealing rings 6 are matched for use; the number of the joint sealing rings 5 is a plurality, the plurality of the joint sealing rings 5 are arranged in parallel at intervals, and joint buffer rings 7 are arranged in the gaps between every two joint sealing rings 5; the pipeline buffer rings 8 are arranged in the gaps of every two pipeline sealing rings 6, the joint buffer rings 7 and the pipeline buffer rings 8 are made of sponge or rubber, and the buffer effect can be achieved by arranging the joint buffer rings 7 between the joint sealing rings 5 and arranging the pipeline buffer rings 8 between the pipeline sealing rings 6, and meanwhile, the sealing performance is improved; a sealing gasket 9 is further arranged between the gas pipeline 1 and the threaded joint of the joint body 2, and an integrally formed annular groove 10 is formed in the outer surface of the sealing gasket 9; a metal ring 11 is embedded in the annular groove 10; the thickness of the annular groove 10 is one third of the thickness of the sealing gasket 9, and the depth of the annular groove 10 is two thirds of the width of the sealing gasket 9; according to the joint for the gas pipeline, the sealing gasket 9 is further arranged between the threaded connection part of the gas pipeline 1 and the joint body 2, the annular groove 10 which is integrally formed is formed in the outer surface of the sealing gasket 9, and the metal ring 11 is embedded in the annular groove 10, so that the threaded connection is more firm, the tightness is further improved, the gas leakage is prevented, the joint is not easy to deform, the joint is not required to be replaced every time, the joint is convenient and durable and attractive, and if the sealing gasket 9 is aged and needs to be replaced, the sealing gasket 9 is only required to be replaced, the metal ring 11 is not required to be replaced, and the cost is saved; in order to ensure that the sealing gasket 9 does not displace during installation and improve the sealing effect, the middle part of the external thread 3 of the gas pipeline 1 is provided with an annular ring groove 12 for installing the sealing gasket 9; the whole connector body 2 is of a T-shaped structure; in the utility model, through the matching use of the sealing structure and the sealing gasket 9, the defects of poor sealing effect and low safety of the connection of the gas pipeline 1 and the joint body 2 in the prior art are further improved, so that the gas pipeline has better sealing performance and safety. The utility model has simple structure, convenient manufacture and simple and convenient operation, avoids the defects in the prior art, and is suitable for popularization, implementation and application.

The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model, but one skilled in the art can make common changes and substitutions within the scope of the technical solution of the present utility model.

Claims (8)

1. The utility model provides a gas pipeline is with connecting, includes and is used for the joint body (2) of being connected with gas pipeline (1), its characterized in that, the mouth of pipe department of gas pipeline (1) is provided with external screw thread (3), be provided with on the joint body (2) with internal screw thread (4) of external screw thread (3) looks adaptation, be equipped with between joint body (2) and gas pipeline (1) and be used for being the seal structure of seal state with joint body (2) and gas pipeline (1), seal structure is including setting up joint sealing ring (5) on the terminal surface of joint body (2) and setting up on gas pipeline (1) and with pipeline sealing ring (6) of joint sealing ring (5) looks adaptation; the pipeline sealing ring (6) is positioned at the tail end of the external thread (3), and the number of the joint sealing ring (5) and the pipeline sealing ring (6) is a plurality of.

2. The joint for gas pipelines according to claim 1, wherein the number of the joint sealing rings (5) is a plurality, the plurality of the joint sealing rings (5) are arranged at intervals in parallel, and a joint buffer ring (7) is arranged in a gap between every two joint sealing rings (5).

3. Joint for gas pipelines according to claim 2, characterized in that a pipeline buffer ring (8) is arranged in the gap between every two pipeline sealing rings (6), and the joint buffer ring (7) and the pipeline buffer ring (8) are made of sponge or rubber.

4. The joint for the gas pipeline according to claim 1, wherein a sealing gasket (9) is further arranged between the threaded connection part of the gas pipeline (1) and the joint body (2), and an integrally formed annular groove (10) is formed on the outer surface of the sealing gasket (9).

5. A joint for gas pipes according to claim 4, characterized in that the annular groove (10) is internally fitted with a metal ring (11).

6. A joint for gas pipes according to claim 5, characterized in that the annular groove (10) has a thickness of one third of the thickness of the sealing gasket (9), and that the annular groove (10) has a depth of two thirds of the width of the sealing gasket (9).

7. The joint for gas pipelines according to claim 4, characterized in that an annular ring groove (12) for installing a sealing gasket (9) is formed in the middle of the external thread (3) of the gas pipeline (1).

8. A joint for gas pipelines according to claim 1, characterized in that the whole body of the joint body (2) is of T-shaped structure.