Pipeline butt joint structure

Abstract

The utility model discloses a pipeline butt joint structure which comprises a connector and connecting pipes inserted into the two sides of the connector, the side, close to the connector, of each connecting pipe is fixedly provided with a gradually-expanding ring, the two sides of the connector are connected with locking heads in a screwed mode through threads, the locking heads are provided with gradually-shrinking rings capable of being inserted into the connector, and the gradually-shrinking rings are connected with the gradually-shrinking rings in a screwed mode. The utility model relates to the technical field of pipeline connection, through the design of the divergent rings on the two sides of the connector and the divergent rings in the locking head, stable connection during pipeline butt joint is achieved, the divergent rings abut against the outer walls of the divergent rings, and the conical sealing rings are detachably arranged on the outer walls of the divergent rings. By means of the structure, mechanical close fit is formed, the stability of the pipelines after butt joint is ensured, the sealing performance of the connecting position is further enhanced through the design of the conical sealing ring, and leakage of media is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a pipeline butt joint structure. Background Art

[0002] In construction, industry, and other fields where fluids need to be transferred, pipe docking is a key step in ensuring the normal operation of the fluid transfer system. However, existing pipe docking technology has some shortcomings in practical applications, mainly reflected in the following aspects:

[0003] Traditional PVC pipe docking methods typically use hot-melt connections, which cannot be quickly disassembled when the pipe system needs maintenance or replacement. Furthermore, these docking methods have poor adaptability in different application scenarios, especially when quick connection and disassembly are required.

[0004] In order to solve the above problems and improve the convenience and sealing performance of pipe docking, the present invention proposes a new pipe docking structure. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a pipe docking structure, which solves the problem that the existing PVC pipes connected by hot melt are inconvenient to disassemble and assemble and maintain sealing.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pipe docking structure, including a connector and connecting pipes inserted on both sides of the connector, a gradually expanding ring is fixedly provided on the side of the connecting pipe close to the connector, and locking heads are screwed on both sides of the connector through threads, and a gradually shrinking ring that can be inserted into the connector is provided on the locking head, and the gradually shrinking ring is pressed against the outer wall of the gradually expanding ring, and the outer wall of the gradually expanding ring is detachably provided with a conical sealing ring.

[0007] Preferably, the outer wall of the gradually expanding ring is provided with a ring groove for embedding the conical sealing ring, and the side wall of the gradually expanding ring is provided with a pressure ring, which presses and fixes the conical sealing ring in the ring groove, and the pressure ring is connected to the gradually expanding ring by a plurality of screws.

[0008] Preferably, a connecting ring is integrally formed in the connecting head, and one end of the connecting pipe is inserted into the connecting head and tightly abuts against the side wall of the connecting ring.

[0009] Preferably, a mounting groove is provided in the connecting ring, and an O-ring is provided in the mounting groove.

[0010] Preferably, outer walls on both sides of the connecting head are provided with external threads, and the inner wall of the locking head is provided with internal threads matching the external threads.

[0011] Beneficial effects

[0012] The utility model provides a pipe docking structure, which has the following beneficial effects:

[0013] The design of the gradually expanding rings on both sides of the connector and the gradually shrinking ring inside the locking head achieves a stable connection when the pipes are butted together. The gradually shrinking ring presses against the outer wall of the gradually expanding ring, forming a tight mechanical fit and ensuring the stability of the pipes after butt connection. The design of the conical sealing ring further enhances the sealing of the connection and prevents leakage of the medium.

[0014] The outer wall of the expansion ring is provided with a ring groove for the tapered sealing ring to be embedded. The tapered sealing ring is fixed in the ring groove by screw connection between the pressure ring and the gradually expanding ring. This design not only simplifies the installation process, but also facilitates the replacement and maintenance of the tapered sealing ring, thereby improving the maintainability of the docking structure.

[0015] An installation groove is provided in the connecting ring, and an O-ring is set in the installation groove, which forms a double sealing structure together with the conical sealing ring, thereby improving the sealing effect, enhancing the reliability of the pipe docking structure, and ensuring the safety of medium transmission;

[0016] The outer walls on both sides of the connector are provided with external threads, and the inner wall of the locking head is provided with matching internal threads. Through the threaded connection, the tight fit between the tapered ring and the gradually expanding ring is ensured, which facilitates the stable locking of the pipes after docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is a structural schematic diagram of the gradually expanding ring of the utility model.

[0019] Figure 3 It is a partial enlarged structural schematic diagram of the utility model.

[0020] In the figure: 1. Connector; 2. Connecting pipe; 3. Expanding ring; 4. Locking head; 5. Contracting ring; 6. Conical sealing ring; 7. Ring groove; 8. Pressure ring; 9. Screw; 10. O-ring; 11. Connecting ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-2The utility model provides a technical solution: a pipe docking structure, including a connector 1 and connecting pipes 2 inserted on both sides of the connector 1, a gradually expanding ring 3 is fixedly provided on the side of the connecting pipe 2 close to the connector 1, and locking heads 4 are screwed on both sides of the connector 1 through threads, and a gradually shrinking ring 5 that can be inserted into the connector 1 is provided on the locking head 4, and the gradually shrinking ring 5 is tightly pressed against the outer wall of the gradually expanding ring 3, and the outer wall of the gradually expanding ring 3 is detachably provided with a conical sealing ring 6.

[0023] By adopting the above technical solution, the design of the tapered ring 5 allows the tapered ring 5 to press against the gradually expanding ring 3 by tightening the locking head 4, thereby fixing the connecting pipe 2. The design of the conical sealing ring 6 provides an additional sealing function to prevent fluid leakage.

[0024] This embodiment is further configured such that the outer wall of the gradually expanding ring 3 is provided with an annular groove 7 for embedding the conical sealing ring 6, and the side wall of the gradually expanding ring 3 is provided with a pressure ring 8, which presses and fixes the conical sealing ring 6 in the annular groove 7, and the pressure ring 8 is connected to the gradually expanding ring 3 by a plurality of screws 9.

[0025] By adopting the above technical solution, the design of the annular groove 7 allows the conical sealing ring 6 to be embedded in the gradually expanding ring 3, and the design of the pressure ring 8 and the screw 9 allows the conical sealing ring 6 to be firmly fixed in the annular groove 7 to prevent it from falling off during use.

[0026] This embodiment is further configured such that a connecting ring 11 is integrally formed in the connecting head 1 , and one end of the connecting pipe 2 is inserted into the connecting head 1 and tightly abuts against a side wall of the connecting ring 11 .

[0027] By adopting the above technical solution, the design of the connecting ring 11 enables the connecting pipe 2 to be in close contact with the connecting ring 11 when inserted into the connector 1, providing additional fixing and supporting effects.

[0028] This embodiment is further configured such that a mounting groove is provided in the connecting ring 11 , and an O-ring 10 is provided in the mounting groove.

[0029] By adopting the above technical solution, the design of the O-ring 10 provides an additional sealing layer to ensure the sealing of the connection and prevent fluid leakage.

[0030] This embodiment is further configured such that outer walls on both sides of the connector 1 are provided with external threads, and an inner wall of the locking head 4 is provided with internal threads matching the external threads.

[0031] By adopting the above technical solution, the design of the external thread and the internal thread enables the locking head 4 to be fixed on the connector 1 by rotation, which is convenient for installation and disassembly.

[0032] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process.

[0033] Example: Prepare the pipes to be connected, insert the conical sealing ring 6 into the annular groove 7 on the outer wall of the gradually expanding ring 3, install the pressure ring 8 on the side wall of the gradually expanding ring 3, and fix it with several screws 9 to ensure that the conical sealing ring 6 is compressed, insert one end of the connecting pipe 2 into the connector 1, so that it is tightly against the side wall of the connecting ring 11, screw the locking head 4 to both sides of the connector 1, insert the tapered ring 5 in the locking head 4 into the connector 1, and rotate the locking head 4 until the tapered ring 5 is tightly against the outer wall of the gradually expanding ring 3 to ensure a stable connection;

[0034] If the pipeline needs to be disassembled, first loosen the locking head 4, then take out the connecting pipe 2, and regularly check the status of the tapered sealing ring 6 and the O-ring 10. If they are worn or damaged, they should be replaced in time.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe docking structure, comprising a connector (1) and connecting pipes (2) inserted on both sides of the connector (1), characterized in that: A gradually expanding ring (3) is fixedly provided on one side of the connecting pipe (2) close to the connecting head (1), and locking heads (4) are screwed on both sides of the connecting head (1) through threads. The locking head (4) is provided with a gradually shrinking ring (5) that can be inserted into the connecting head (1), and the gradually shrinking ring (5) is pressed against the outer wall of the gradually expanding ring (3). The outer wall of the gradually expanding ring (3) is detachably provided with a conical sealing ring (6).

2. A pipe docking structure according to claim 1, characterized in that: The outer wall of the gradually expanding ring (3) is provided with an annular groove (7) for the tapered sealing ring (6) to be embedded, and the side wall of the gradually expanding ring (3) is provided with a pressure ring (8), and the pressure ring (8) presses and fixes the tapered sealing ring (6) in the annular groove (7), and the pressure ring (8) and the gradually expanding ring (3) are connected by a plurality of screws (9).

3. A pipe docking structure according to claim 2, characterized in that: A connecting ring (11) is integrally formed in the connecting head (1), and one end of the connecting pipe (2) is inserted into the connecting head (1) and tightly abuts against the side wall of the connecting ring (11).

4. A pipe docking structure according to claim 3, characterized in that: A mounting groove is provided in the connecting ring (11), and an O-type sealing ring (10) is provided in the mounting groove.

5. The pipe docking structure according to claim 4, characterized in that: External threads are provided on the outer walls of both sides of the connector (1), and internal threads matching the external threads are provided on the inner wall of the locking head (4).

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