CN214500355U - Pressure pipeline connecting and sealing device for conveying fluid - Google Patents

Abstract

The utility model relates to a pressure pipeline connecting and sealing device for conveying fluid; the pipe sleeve, the butt joint clamping key, the lining belt, the pressure response type seal, the guide lining, the clamping key, the clamping sleeve limiting device and other parts are adopted to radially connect the two seamless pipes with grooves processed at the butt joint heads, and meanwhile, the pipeline is sealed to prevent fluid from leaking. The structure is high pressure resistant, can be used for pipeline connection of various pipe diameters, is convenient to install and connect, is convenient to replace and seal, has the advantages of being safe and reliable in sealing, not easy to damage, convenient to produce and process, free from damage to the pressure-resistant strength of the pipeline when the connecting groove is machined, free from reducing the inner drift diameter of the pipeline and the like particularly for rigid connection long-distance liquid supply pipelines.

Description

Pressure pipeline connecting and sealing device for conveying fluid

Technical Field

The utility model relates to the fluid transport field specifically arrives fluid conveying pipeline.

Background

The existing fluid conveying pipeline has the following connection modes: 1. and (3) threaded connection: the method is mainly used for low-pressure pipelines. 2. Flange connection: the volume is large, flanges need to be welded on the tube head, the assembly operation is complex, and the pressure resistance is low. 3. Socket connection: the pipes are required to be oppositely inserted and sealed, if the pipes are hard, the sealing is not suitable to be replaced, and the pipe heads are required to be processed into primary and secondary opposite insertion holes. 4. The clamp type groove connection: a clamp part is needed, the clamp is a split clamp, and the requirement on the clamp processing precision is high; the pipe head needs to be processed with a groove, and if the groove is processed in a pressing mode, the inner drift diameter of the pipeline is influenced; if the vehicle-made groove is adopted, the wall thickness of the pipe can be influenced to weaken the pressure resistance of the pipeline, the installation requirement is high, and the seal is easy to damage or the seal position leaks. 5. Cutting ferrule formula connector: firm in connection, high pressure resistant, sealing performance is good, but can only use the pipeline of little pipe diameter, can not be used to big latus rectum pipeline.

The existing connection modes of the fluid pipelines can not only realize convenient installation, replacement and maintenance, but also adapt to the sealing of various pressure grades and the connection of various pipe diameters.

Disclosure of Invention

The invention discloses a novel pipeline connecting device. The device comprises a seamless pipe with a groove processed at the head, a pipe sleeve, a butt joint clamping key, a lining belt, a pressure response type seal, a guide lining, a clamping key for limiting the pipe sleeve, a clamping sleeve limiting device and the like. The structure is high pressure resistant, can be used for connecting pipelines with various pipe diameters, and is convenient to install and connect and convenient to replace and seal. Especially for some liquid supply pipelines which are rigidly connected for a long distance, the sealing is reliable, the damage is not easy, the processing is convenient, the pressure-resistant strength of the pipeline is not damaged by the connecting groove, and the inner drift diameter of the pipeline is not reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art are briefly described below. It is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the connection pipe of the present invention and a schematic view of the connection groove and the sealing groove processed at both ends.

Fig. 3 is a schematic view of a pipe sleeve.

Fig. 4 is a schematic view of a docking key.

Reference numerals indicate the same.

1-processing a grooved seamless tube at the head; 2-pipe sleeve; 3-butt joint clamping key; 4-a backing tape; 5-pressure responsive sealing; 6-a guide bush; 7-a card key; 8-cutting the ferrule; 9-cutting ferrule stop device

Detailed Description

The present invention will now be described more fully hereinafter with reference to the accompanying drawings. It is obvious that the described embodiments are some, not all embodiments of the present invention, and other embodiments obtained by those skilled in the art without any inventive work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "left", "right", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element to be referred to must have a characteristic orientation, be configured to operate in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that the terms "mounted", "connected" and "limited" are to be interpreted broadly, unless expressly specified or limited otherwise. For example, the connection may be fixed, detachable, or other connections of the same body; the two original pieces can be directly connected or indirectly connected through an intermediate medium, or the interiors of the two original pieces are communicated; the limit can be limited by a limit block, a set screw and a spring clamp key. The clamping key can be limited by using a clamping sleeve or a throat hoop strapping tape and other limiting modes. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Examples

The utility model provides a fluid pipeline connected mode, refer to fig. 1, and this embodiment adopts a pair of butt joint card key (3) to couple together two-piece head processing grooved seamless pipe (1). The outer side of a connecting groove on a seamless pipe (1) with a groove machined at the head part is provided with a groove for installing a pressure response type seal (5) and a guide lining (6), the pressure response type seal (5) and the guide lining (6) are arranged at the outer side of the connecting position, a pipe sleeve (2) is sleeved at the connecting position and the mounting and sealing position of a connecting structure, the pipe sleeve (2) is used for limiting the movement of the front and back upper and lower positions of the seamless pipe (1) with a groove machined at the head part and a butt joint clamping key (3), and the pressure response type seal (5) and the pipe sleeve (2) jointly act to ensure that fluid in the pipeline does not leak; the guide bush (6) is arranged on the seamless pipe (1) with the groove processed at the head part and used for limiting the gap between the pipe sleeve (2) and the seamless pipe (1) with the groove processed at the head part and reducing the phenomena of bending moment generated by overlarge gap at the connecting position and unilateral compression of the small pressure response type seal (5).

Claims (1)

1. A fluid carrying pressure line connection and sealing device comprising:

the head part is provided with a grooved seamless pipe (1), a pipe sleeve (2), a butt joint clamping key (3), a lining belt (4), a pressure response type seal (5), a guide lining (6), a clamping key (7), a clamping sleeve (8) and a clamping sleeve limiting device (9);

the method is characterized in that: the pair of butt joint clamping keys (3) are arranged in corresponding connecting grooves of the heads of the two seamless pipes (1) with the aligned shafts and the grooves machined on the heads to realize the connection of the two seamless pipes (1) with the grooves machined on the heads; the pressure response type seal (5) and the guide lining (6) are assembled on the corresponding groove at the outer side of the connecting groove of the seamless pipe (1) with the groove processed at the head part; the butt joint clamping key (3) is arranged between the two connector heads at the connecting position, and the pressure response type seal (5) is arranged at the left side and the right side of the butt joint clamping key (3); the pipe sleeve (2) is sleeved at the connecting position of the pipeline and plays a role in sealing fluid in the pipeline without leakage together with the pressure response type seal (5) and the guide lining (6) on the seamless pipe (1) with grooves processed at the head parts of the two sides of the connecting position of the pipeline.

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