CN112096978A - A thin-walled pipe connection structure - Google Patents

Abstract

The invention discloses a thin-wall pipe connecting structure, which comprises a first pipe body (1) and a second pipe body (5), and is characterized in that: the butt joint ports of the first pipe body (1) and the second pipe body (5) are respectively provided with a splicing structure; the inserting structure is used for connecting the first pipe body (1) and the second pipe body (5) into an integral structure; key grooves are formed in the circumferential direction of the inserting structure; the key groove is used for embedding the connecting key (4); the connecting key (4) is used for transmitting axial tension and circumferential torsion between the first pipe body (1) and the second pipe body (5); the problem of current thin-walled pipe connected mode require high to field device or environment is solved.

Description

A thin-walled pipe connection structure

technical field

The present invention relates to a thin-walled pipe connection structure.

Background technique

The thin-walled pipe connection usually adopts compression type, compression type, etc., but the equipment requirements for on-site connection are relatively high; the other is to use welding connection, the end of the pipe is beveled, and the pipe is welded manually or automatically Ring welding is carried out, but there is a safety hazard at the site where open flames are not allowed, so welding connection cannot be used.

SUMMARY OF THE INVENTION

In view of this, the present invention provides a thin-walled pipe connection structure, which solves the problem that the existing thin-walled pipe connection method has high requirements on field equipment or environment.

In order to achieve the above purpose of the invention, the thin-walled pipe connection structure includes a first pipe body and a second pipe body, and is characterized in that:

The docking ports of the first pipe body and the second pipe body are respectively provided with a plug-in structure;

The plug-in structure is used for connecting the first pipe body and the second pipe body into an integrated structure;

The circumferential direction of the plug-in structure is provided with a keyway;

the keyway is used to embed the connecting key;

The connecting key is used to transmit axial tension and circumferential torsion between the first pipe body and the second pipe body.

Further, the plug-in structures are evenly arranged along the docking port.

Further, the connecting key is an arc-shaped key.

Further, the plug-in structure is a socket structure and a plug structure provided on the docking ports of the first pipe body and the second pipe body;

The first pipe body and the second pipe body are inserted into an integrated structure through the plug structure and the socket structure.

Further, the number of the socket structures is 3-5.

Further, at least one of the plug structures of the first pipe body is provided with a first keyway;

A second keyway is provided on at least one of the plug structures of the second pipe body;

The first keyway is connected with the second keyway to form the keyway.

Further, the thin-walled pipe connection structure also includes a protective cover;

The protective sleeve is connected to the outside of the keyway for confining the connecting key in the keyway.

Further, the protective sleeve is connected through pins and threaded holes.

The present invention has the following beneficial effects:

The thin-walled pipe connection structure of the present invention is connected to an integrated structure through the plug-in structures respectively provided at the connection ports of the two pipe bodies, and then further fixedly connected by the connection key, and the shaft between the two connection pipe bodies is realized through the connection key. For the transmission of tensile force and circumferential torsion force, the connection of the two pipe bodies can fully meet the strength requirements of on-site construction operations; it can be seen that the connection of thin-walled pipes through this connection structure does not require on-site auxiliary connection equipment, nor It is necessary to use an open flame or be equipped with on-site environmental requirements such as electricity; and the assembly and disassembly of the connection structure are simple and easy to operate.

Description of drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a thin-walled pipe connection structure according to an embodiment of the present invention.

Detailed ways

The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are described in detail. However, those skilled in the art can fully understand the present invention for the parts that are not described in detail.

Furthermore, it should be understood by those of ordinary skill in the art that the accompanying drawings are provided only to illustrate the objects, features and advantages of the present invention and are not actually drawn to scale.

Meanwhile, unless the context clearly requires otherwise, throughout the specification and claims, words such as "including", "comprising" and the like should be construed in an inclusive rather than an exclusive or exhaustive sense; that is, "including but not limited to" means.

1 is a schematic diagram of a thin-walled pipe connection structure according to an embodiment of the present invention; in FIG. 1, a thin-walled pipe connection structure includes a first pipe body 1 and a second pipe body 5, the first pipe body 1 and all The docking ports of the second pipe body 5 are respectively provided with a plug-in structure, and the function of the plug-in structure is to connect the first pipe body 1 and the second pipe body 5 into an integrated structure; A keyway is arranged in the circumferential direction, and a connecting key 4 is embedded in the keyway;

The thin-walled pipe connection structure of this embodiment is connected to an integrated structure through the plug-in structures respectively provided at the connection ports of the two pipe bodies, and then the connection key 4 is used to further fix the connection, and the connection key 4 is used to realize the connection between the two connected pipe bodies. The transmission of axial tension and circumferential torsion between the two pipes can fully meet the strength requirements of on-site construction operations after the two pipes are connected; it can be seen that the connection of thin-walled pipes through this connection structure does not require auxiliary connection equipment on site. It also does not need to use open flames or equip with electricity and other on-site environmental requirements, which solves the existing thin-walled pipe connection methods. The mining site, especially in the environment where the use of open flames is not allowed, has the problem of potential safety hazards.

Preferably, the plug-in structures are evenly arranged along the docking port. Obviously, the plug-in structures are evenly arranged, and when the first tube body 1 and the second tube body 5 transmit the axial tension and circumferential torsion, the axial tension and circumferential torsion can be equally divided into each plug-in structure. In other words, the force of each plug-in structure is uniform, and the force transmission of each plug-in structure is also uniform, so as to ensure that the connection structure is more stable.

In FIG. 1 , the connecting key 4 is an arc-shaped key. The arc-shaped key is selected, and the keyway is also designed as an arc-shaped keyway, which has the advantages of simple processing and convenient installation and disassembly.

In FIG. 1 , the plug-in structure is a socket structure 9 and a plug structure 7 provided on the docking ports of the first tube body 1 and the second tube body 5 , the first tube body 1 and the The second pipe body 5 is inserted into an integrated structure through the plug structure 7 and the socket structure 9 .

The socket structure 9 of the first pipe body 1 corresponds to the plug structure 7 of the second pipe body 5 , and the plug structure 7 of the first pipe body 1 corresponds to the socket structure 9 of the second pipe body 5 . Correspondingly, in this way, after the first tube body 1 and the second tube body 5 are inserted together, an integrated structure can be formed.

Preferably, during processing, the docking ports of the first pipe body 1 and the second pipe body 5 can be divided into even parts, such as 6 parts, and then three parts are selected to be processed into sockets at intervals Structure 9, the remaining three parts are naturally formed as plug structure 7; of course, it can be 8 parts or 10 parts, and the processing method is the same. With this processing method, the first pipe body 1 and the second pipe body 2 have the same plug-in structure, so when connecting the two pipe bodies, it is not necessary to consider whether the matching of the interfaces is appropriate, and at the same time, the processing can be simplified.

Preferably, the number of the socket structures 9 is 3-5. If it is too small, the number of installed connection keys 4 will be small, and the stability of the connection mechanism will be insufficient. If too much, the performance of the connection structure will not be increased, but the processing cost will be increased.

In FIG. 1 , at least one of the plug structures 7 of the first pipe body 1 is provided with a first keyway 3 ; at least one of the plug structures 7 of the second pipe body 5 is provided with a second keyway 10 ; The first keyway 3 and the second keyway 10 constitute the keyway.

Preferably, first key grooves 3 are provided on both sides of each plug structure 7 of the first pipe body 1, and at the same time, first key grooves 10 are provided on both sides of each plug structure 7 of the second pipe body 5; thus It can be ensured that each vertical docking gap between the plug structure 7 and the socket structure 9 of the two pipe bodies has a connecting key 4 for fixed connection, so that the connection between the two pipe bodies can be guaranteed to be more stable, and the axial tension and the circumferential direction can be further realized. The stable transmission of the torsion force finally ensures the stable structure of the connection between the two pipe bodies and improves the service life of the connection structure of the two pipe bodies.

In FIG. 1 , a protective sleeve 2 is also provided on the outside of the plug-in structure. The protective sleeve 2 is connected to the outside of the keyway. The protective sleeve 2 restricts the connection key 4 in the keyway to prevent the connection key 4 from entering the keyway. drop in. Specifically, a pin 6 is connected to the protective sleeve 2, a threaded hole 8 is provided on the first pipe body 1 or the second pipe body 5, the pin 6 is connected with the threaded hole 8, and finally the protective sleeve 2 is fixedly connected to the outside of the keyway .

Specifically, taking the thin-walled pipe connection structure shown in the embodiment of FIG. 1 as an example, the connection process of the thin-walled pipe connection structure of the present invention will be described:

When thin-walled pipes are connected on site, the protective sleeve 2 is first sleeved on the second pipe body 5, and the first pipe body 1 and the second pipe body 55 are inserted into an integrated structure through the plug-in structure. Adjust the first keyway 3 of the first tube body 1 to align with the second keyway 10 of the second tube body 55 to form a complete arc-shaped keyway, and then put the three arc-shaped connecting keys 4 into the arc-shaped keyway , move the protective sleeve 2 up to the keyway connection, align the hole on the protective sleeve 2 with the threaded hole 8 of the first pipe body 1, screw in the pin 6 for fixing, and the protective sleeve 2 restricts the arc-shaped connection key 4 In the circular arc keyway, the entire connection process is completed.

After the thin-walled pipe using this connection structure is connected, it has strong tensile and torsional resistance, which can meet the strength of on-site construction operations, and the assembly and disassembly are simple and easy to operate. No open flame is required for on-site operation, and there is no need for other equipment to assist connection. It can reduce on-site construction intensity and on-site operation risks, and is suitable for popularization and application.

The above-mentioned embodiments are only the embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as limiting the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications, equivalent replacements, improvements, etc. can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims (9)

1. A thin-walled pipe connection structure, comprising a first pipe body (1) and a second pipe body (5), characterized in that: The docking ports of the first pipe body (1) and the second pipe body (5) are respectively provided with plug-in structures; The plug-in structure is used to connect the first pipe body (1) and the second pipe body (5) into an integrated structure; The circumferential direction of the plug-in structure is provided with a keyway; the keyway is used to embed the connecting key (4); The connecting key (4) is used to transmit axial tension and circumferential torsion between the first pipe body (1) and the second pipe body (5). 2. The thin-walled pipe connection structure according to claim 1, wherein: The plug-in structures are evenly arranged along the docking port. 3. The thin-walled pipe connection structure according to claim 1, wherein: The connecting key (4) is a circular arc key. 4. The thin-walled pipe connection structure according to any one of claims 1-3, wherein: The plug-in structure is a socket structure (9) and a plug structure (7) provided on the docking ports of the first pipe body (1) and the second pipe body (5); The first pipe body (1) and the second pipe body (5) are inserted into an integrated structure through the plug structure (7) and the socket structure (9). 5. The thin-walled pipe connection structure according to claim 4, wherein: The number of the socket structures (9) is 3-5. 6. The thin-walled pipe connection structure according to claim 4, wherein: A first keyway (3) is provided on at least one of the plug structures (7) of the first pipe body (1); A second keyway (10) is provided on at least one of the plug structures (7) of the second pipe body (5); The first keyway (3) is connected with the second keyway (10) to form the keyway. 7. The thin-walled pipe connection structure according to claim 4, characterized in that, further comprising: protective cover (2); The protective sleeve (2) is connected to the outside of the keyway, and is used to confine the connecting key (4) in the keyway. 8. The thin-walled pipe connection structure according to any one of claims 1-3, 5 or 6, characterized in that, further comprising: protective cover (2); The protective sleeve (2) is connected to the outside of the keyway, and is used to confine the connecting key (4) in the keyway. 9. The thin-walled pipe connection structure according to claim 8, wherein: The protective sleeve (2) is connected through a pin (6) and a threaded hole (8).

Images