CN220204966U

CN220204966U - Tight-connection pipeline joint

Info

Publication number: CN220204966U
Application number: CN202321962655.8U
Authority: CN
Inventors: 李祖军; 章烈旭; 陶红宇
Original assignee: Hubei Junwei Machinery Co ltd
Current assignee: Hubei Junwei Machinery Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2023-12-19
Anticipated expiration: 2033-07-25

Abstract

The utility model discloses a tightly connected pipeline joint, which relates to the technical field of pipeline joints, and particularly comprises a first connecting pipe and a second connecting pipe, wherein connecting discs are connected to the edges of the opposite ends of the first connecting pipe and the second connecting pipe, and a second sealing groove is formed in the surface of one connecting disc; the surface of the other connecting disc is provided with a flange which protrudes outwards and is matched with the second sealing groove in shape and size, the flange is arranged in the second sealing groove, and the cross sections of the second sealing groove and the flange are triangular; the second sealing grooves and the flanges are at least one, and every two adjacent second sealing grooves and flanges are arranged in a staggered mode. When the sealing device is used, the connecting discs are sealed through the special-shaped sealing rings, compared with the traditional plane sealing rings, the sealing performance is better, and the two connecting discs can be sealed through the arranged protective cover, so that the sealing discs and the bolts are not corroded by the external environment.

Description

Tight-connection pipeline joint

Technical Field

The utility model relates to the technical field of pipeline connectors, in particular to a tightly connected pipeline connector.

Background

Natural gas is an important living energy source in each city, the natural gas can not be used for bathing and cooking, and although the natural gas is used for bringing great convenience to life, because the natural gas is inflammable and explosive, in the natural gas conveying process, the pipeline is absolutely sealed and has enough supporting strength, and the pipeline is conveyed by adopting steel pipes in most cases.

The joint of the pipeline is usually connected by using the joint, the flange connection mode is most common, the flanges are fastened by bolts after being butted, but the two flanges are usually sealed by adopting a plane sealing ring, the quantity of the sealing rings is small, and the sealing rings are easy to age and leak air after being used for a long time. To this end we propose a pipe joint that is tightly connected.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a pipeline joint which is tightly connected.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the pipeline joint comprises a first connecting pipe and a second connecting pipe, wherein connecting discs are connected to the edges of the opposite ends of the first connecting pipe and the second connecting pipe, and a second sealing groove is formed in the surface of one connecting disc;

a flange which protrudes outwards and is matched with the second sealing groove in shape and size is arranged on the surface of the other connecting disc, wherein the flange is arranged in the second sealing groove, and the cross sections of the second sealing groove and the flange are triangular;

the second sealing grooves and the flanges are at least one, and every two adjacent second sealing grooves and flanges are arranged in a staggered mode;

the first sealing grooves are formed in the surface of each connecting disc, the two first sealing grooves are arranged oppositely, the second sealing grooves and the flanges are positioned in the first sealing grooves, and the two first sealing grooves form a parallelogram structure;

an external sealing ring is arranged between the two first sealing grooves, the cross section of the external sealing ring is parallelogram, and a V-shaped sealing ring is arranged between the second sealing groove and the flange.

Preferably, the edge of the connection disc is fastened by a plurality of bolts.

Preferably, one end of one first connecting pipe close to the connecting disc is connected with an annular plug which extends outwards, and one end of the other first connecting pipe close to the connecting disc is provided with an annular cavity which is concave in the box;

the annular plug is arranged in the annular cavity, the annular plug and the annular cavity are in conical surface contact, a conical sealing ring is arranged on the surface of the annular plug, and an annular sealing ring is arranged between the tail end of the annular plug and the bottom of the annular cavity.

Preferably, annular reinforcing seats which are integrated with the first connecting pipe and the second connecting pipe are arranged between one side, away from each other, of the two connecting plates;

two semicircular protection covers are symmetrically distributed outside the two connection discs, surrounding edges are connected to the inner edges of two sides of the protection covers, and step cavities are formed in the connection positions of the protection covers and the surrounding edges;

wherein, two safety covers card are outside the connection pad, and the surrounding side surrounds on first connecting pipe, second connecting pipe, and ladder die cavity card is on annular reinforcement seat.

Preferably, a plurality of rectangular clamping grooves are formed in the edge of one side, far away from the connecting disc, of the surface of the annular reinforcing seat, rectangular clamping blocks corresponding to the rectangular clamping grooves in position and size are installed in each stepped cavity, and the rectangular clamping blocks are respectively arranged in the rectangular clamping grooves.

Preferably, the edge of the protection cover is provided with a connecting edge, and the upper connecting edge and the lower connecting edge are mutually overlapped and fastened by a plurality of bolts.

Compared with the prior art, when the sealing device is used, the connecting discs are sealed through the special-shaped sealing rings, compared with the traditional plane sealing rings, the sealing performance is better, the two connecting discs can be sealed through the arranged protective cover, the sealing discs and the bolts are not corroded by the external environment, and the connecting strength is high.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a cross-sectional view of the present utility model.

FIG. 3 is a schematic view of the structure of the utility model with the protective cover removed.

Fig. 4 is a schematic structural view of the protective cover of the present utility model.

In the figure: 1. a first connection pipe; 2. surrounding edges; 3. a protective cover; 4. connecting edges; 5. a second connection pipe; 6. rectangular clamping blocks; 7. a flange; 8. an external seal ring; 9. a connecting disc; 10. a first seal groove; 11. a second seal groove; 12. an annular cavity; 13. an annular seal ring; 14. an annular plug; 15. an annular reinforcing seat; 16. a step cavity; 17. rectangular clamping grooves.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a connect inseparable pipeline joint, includes first connecting pipe 1 and second connecting pipe 5, all is connected with connection pad 9 on the relative one end edge of first connecting pipe 1 and second connecting pipe 5, the edge of connection pad 9 passes through many bolt-up, through tight connection between two connection pads 9 of bolt.

As shown in fig. 2, a second sealing groove 11 is formed on the surface of one of the connecting discs 9, and a flange 7 which protrudes outwards and has a shape and size matched with those of the second sealing groove 11 is arranged on the surface of the other connecting disc 9, wherein the flange 7 is arranged in the second sealing groove 11, and the cross sections of the second sealing groove 11 and the flange 7 are triangular;

the second sealing grooves 11 and the flanges 7 are at least one, every two adjacent second sealing grooves 11 and flanges 7 are arranged in a staggered mode, and as the second sealing grooves 11 and the flanges 7 are of special-shaped design, the contact area is increased compared with the traditional plane design;

the utility model further comprises a first sealing groove 10 arranged on the surface of each connecting disc 9, wherein the two first sealing grooves 10 are oppositely arranged, the second sealing groove 11 and the flange 7 are positioned in the first sealing grooves 10, and the two first sealing grooves 10 form a parallelogram structure; also, the first seal groove 10 is of a profile design, which increases the contact area compared to a conventional planar design.

Specifically, an external sealing ring 8 is arranged between the two first sealing grooves 10, the cross section of the external sealing ring 8 is parallelogram, and a V-shaped sealing ring is arranged between the second sealing groove 11 and the flange 7. When the two connecting discs 9 are fastened by bolts, the connecting discs 9 are close to each other and squeeze the V-shaped sealing rings and the outer sealing rings 8, so that the V-shaped sealing rings and the outer sealing rings 8 deform to achieve a sealing state;

it should be noted that, the outer sealing ring 8 is located at the outermost part, and seals the edge of the connecting disc 9, so that the outside air cannot contact with the V-shaped sealing ring, and the V-shaped sealing ring can be used for a long time without oxidation.

As shown in fig. 2, one end of the first connecting pipe 1, which is close to the connecting disc 9, is connected with an annular plug 14 which extends outwards, and one end of the other first connecting pipe 1, which is close to the connecting disc 9, is provided with an annular cavity 12 which is concave in the box;

the annular plug 14 is arranged in the annular cavity 12, the annular plug 14 and the annular plug are in conical surface contact, a conical sealing ring is arranged on the surface of the annular plug 14, and an annular sealing ring 13 is arranged between the tail end of the annular plug 14 and the bottom of the annular cavity 12;

specifically, the annular plug 14 is arranged in the annular cavity 12, so that the connection between the first connecting pipe 1 and the second connecting pipe 5 is more stable, namely, when the first connecting pipe 1 and the second connecting pipe 5 are bent, the annular plug 14 and the annular cavity 12 can generate forces opposite to the bending direction, and the pipe joint connection is more stable.

As shown in fig. 2 and 3, an annular reinforcing seat 15 which is integrated with the first connecting pipe 1 and the second connecting pipe 5 is arranged between the side, away from each other, of the two connecting plates 9;

two semicircular protection covers 3 are symmetrically distributed outside the two connection discs 9, surrounding edges 2 are connected to the inner edges of two sides of the protection covers 3, and step cavities 16 are formed in the connection positions of the protection covers 3 and the surrounding edges 2 as shown in fig. 4;

as shown in fig. 2, the two protection covers 3 are clamped outside the connecting disc 9, the surrounding edge 2 surrounds the first connecting tube 1 and the second connecting tube 5, the step-shaped cavity 16 is clamped on the annular reinforcing seat 15, the two protection covers 3 seal the connecting disc 9, the connecting disc 9 is located in a sealed space, and the connecting disc 9 and the bolts can be protected from corrosion.

As shown in fig. 3, a plurality of rectangular clamping grooves 17 are formed in the edge of one side, far away from the connecting disc 9, of the surface of the annular reinforcing seat 15, as shown in fig. 4, rectangular clamping blocks 6 with positions and sizes corresponding to the rectangular clamping grooves 17 are installed in each stepped cavity 16, the rectangular clamping blocks 6 are respectively arranged in the rectangular clamping grooves 17, and when the first connecting pipe 1 and the second connecting pipe 5 are twisted, due to the fact that the rectangular clamping blocks 6 are matched with the rectangular clamping grooves 17, twisting force existing in the first connecting pipe 1 and the second connecting pipe 5 is limited and prevented by the rectangular clamping blocks 6 and the rectangular clamping grooves 17, and twisting resistance of the first connecting pipe 1 and the second connecting pipe 5 is increased.

Finally, in the practical use process of the utility model, the first connecting pipe 1 and the second connecting pipe 5 can be connected to the gas pipeline in a welding mode.

As shown in fig. 1 and fig. 4, the edge of the protecting cover 3 is provided with a connecting edge 4, the upper connecting edge 4 and the lower connecting edge 4 are mutually overlapped and fastened by a plurality of bolts, the dismounting and the mounting are convenient, and the edge of the protecting cover 3 and the edge of the annular cavity 12 are both provided with sealing rings.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a connect inseparable pipeline joint, includes first connecting pipe (1) and second connecting pipe (5), all is connected with connection pad (9), its characterized in that on the relative one end edge of first connecting pipe (1) and second connecting pipe (5): a second sealing groove (11) is formed in the surface of one connecting disc (9);

a flange (7) protruding outwards and matched with the second sealing groove (11) in shape and size is arranged on the surface of the other connecting disc (9), wherein the flange (7) is arranged in the second sealing groove (11), and the cross sections of the second sealing groove (11) and the flange (7) are triangular;

the second sealing grooves (11) and the flanges (7) are at least one, and every two adjacent second sealing grooves (11) and flanges (7) are arranged in a staggered mode;

the device further comprises a first sealing groove (10) arranged on the surface of each connecting disc (9), the two first sealing grooves (10) are oppositely arranged, the second sealing groove (11) and the flange (7) are positioned in the first sealing grooves (10), and the two first sealing grooves (10) form a parallelogram structure;

an outer sealing ring (8) is arranged between the two first sealing grooves (10), the cross section of the outer sealing ring (8) is parallelogram, and a V-shaped sealing ring is arranged between the second sealing groove (11) and the flange (7).

2. A tight-fitting pipe joint according to claim 1, wherein: the edge of the connecting disc (9) is fastened by a plurality of bolts.

3. A tight-fitting pipe joint according to claim 1, wherein: one end of the first connecting pipe (1) close to the connecting disc (9) is connected with an annular plug (14) which extends outwards, and one end of the other first connecting pipe (1) close to the connecting disc (9) is provided with an annular cavity (12) recessed in the box;

the annular plug (14) is arranged in the annular cavity (12) and is in conical surface contact with the annular cavity, a conical sealing ring is arranged on the surface of the annular plug (14), and an annular sealing ring (13) is arranged between the tail end of the annular plug (14) and the bottom of the annular cavity (12).

4. A tight-fitting pipe joint according to claim 1, wherein: an annular reinforcing seat (15) which is integrated with the first connecting pipe (1) and the second connecting pipe (5) is arranged between one side, away from each other, of the two connecting plates (9);

two semicircular protection covers (3) are symmetrically distributed outside the two connection discs (9), surrounding edges (2) are connected to the inner edges of two sides of the protection covers (3), and a stepped cavity (16) is formed in the connection position of the protection covers (3) and the surrounding edges (2);

the two protection covers (3) are clamped outside the connecting disc (9), the surrounding edge (2) is surrounded on the first connecting pipe (1) and the second connecting pipe (5), and the step-shaped cavity (16) is clamped on the annular reinforcing seat (15).

5. A tight-fitting pipe joint according to claim 4, wherein: a plurality of rectangular clamping grooves (17) are formed in the edge of one side, far away from the connecting disc (9), of the surface of the annular reinforcing seat (15), rectangular clamping blocks (6) which are located in the positions and the sizes corresponding to the rectangular clamping grooves (17) are arranged in each step cavity (16), and the rectangular clamping blocks (6) are respectively arranged in the rectangular clamping grooves (17).

6. A tight-fitting pipe joint according to claim 4, wherein: the edge of the protective cover (3) is provided with a connecting edge (4), and the upper connecting edge (4) and the lower connecting edge (4) are mutually overlapped and fastened through a plurality of bolts.