Pipeline joint with adjustable joint length

Abstract

The utility model relates to the field of pipeline connectors, in particular to a pipeline connector with the adjustable connector length. The pipeline connector with the adjustable connector length comprises a pipeline, an installation connector, a nut, a connecting body and a sealing buckle, the tail portion of the installation connector is of a threaded structure and is in threaded connection with the pipeline, the connecting body is in threaded connection with the pipeline, and the connecting body comprises external threads and is in threaded connection with the nut through the external threads. According to the utility model, the overall length of the interface can be adjusted within a certain range through the connection body and the adjustment of the sizes of the mutually nested threads of the connection body and the pipeline. Errors generated in the mounting process and the dismounting process and errors caused by pipeline components can be effectively avoided. And the pipelines are connected through threads, so that the influence caused by welding is effectively reduced, the requirements on installation personnel and equipment are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of pipeline joints, in particular to a pipeline joint with adjustable interface length. Background Art

[0002] Existing pipe joints can only be completely sealed when they are fully tightened. Before on-site assembly, a certain margin must be left, and on-site measurements must be made according to actual conditions. A series of operations such as measurement, cutting, and welding are cumbersome, and the accumulated errors will cause subsequent dimensional misalignment, and the extra margin will also cause a certain amount of waste. If the pipeline does not have enough margin, it will also cause the pipeline size to be too short during actual installation and cannot be connected.

[0003] Since the lengths of valves, pressure reducers and other accessories are not completely uniform, there are also certain deviations. After replacing the accessories, although the interface thread size is the same, the total length of each component will deviate from the original size in the length direction, and the newly installed pipeline accessories still cannot be connected to the original pipeline. Summary of the invention

[0004] The utility model hopes to provide a design of a pipe joint with adjustable length, solve the problem of size deviation in the connection of the pipe joint, and can more conveniently and quickly realize the installation of the pipe and can be more conveniently replaced. The specific scheme is as follows:

[0005] A pipe joint with adjustable interface length comprises a pipe, a mounting joint, a nut, a connector and a sealing buckle. The mounting joint has a threaded tail and is threadedly connected to the pipe. The connector is threadedly connected to the pipe. The connector comprises an external thread and is threadedly connected to the nut via the external thread.

[0006] The installation joint is provided with a sealing groove, an O-type sealing gasket is arranged in the sealing groove, and the O-type sealing gasket is located between the pipeline and the installation joint.

[0007] A mounting groove is provided in the middle of the mounting joint.

[0008] The front half of the nut has threads connected to the connector, while the rear half has no threads.

[0009] A flat sealing gasket is provided between the connector and the mounting joint.

[0010] A trapezoidal sealing ring is arranged between the connector and the sealing buckle.

[0011] The utility model realizes the adjustable total length of the interface within a certain range through the connector and the adjustment of the thread size of the mutually nested threads of the connector and the pipeline. It can effectively avoid the errors generated during the installation and disassembly process and the errors caused by the pipeline components. The pipeline is connected by threads, which effectively reduces the impact of welding, reduces the requirements for installation personnel and equipment, and improves work efficiency.

[0012] The utility model has the following advantages:

[0013] 1. The total length of the interface is adjustable, which effectively reduces the problem of assembly failure caused by construction errors and component size errors.

[0014] 2. Use threaded structure instead of welding, which reduces the requirements for installation personnel and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a pipe joint with adjustable interface length Figure 1 ;

[0016] Figure 2 A schematic diagram of the structure of a pipe joint with adjustable interface length Figure 2 ;

[0017] Figure 3 It is a structural schematic diagram of an installation joint in a pipe joint with adjustable interface length;

[0018] Figure 4 It is a structural schematic diagram of a nut in a pipe joint with adjustable interface length;

[0019] Figure 5 It is a structural schematic diagram of a connector in a pipe joint with adjustable interface length;

[0020] Figure 6 It is a structural schematic diagram of a sealing buckle in a pipe joint with adjustable interface length;

[0021] The numbers are as follows: 1. Installation joint; 11. Sealing groove; 12. Installation groove; 2. Jacket hexagonal nut; 3. Connector; 4. Sealing buckle; 5. O-ring; 6. Flat sealing gasket; 7. Trapezoidal sealing ring; 8. Pipeline. DETAILED DESCRIPTION

[0022] Combine the following Figure 1-6 For further explanation:

[0023] A pipe joint with an adjustable interface length comprises a pipe 8, a mounting joint 1, a nut 2, a connector 3 and a sealing buckle 4. The rear portion of the mounting joint 1 is a threaded structure and is threadedly connected to the pipe 8. The connector 3 is threadedly connected to the pipe 8. The connector 3 comprises an external thread and is threadedly connected to the nut 2 via the external thread.

[0024] The mounting joint 1 is provided with a sealing groove 11 , an O-type sealing gasket 5 is arranged in the sealing groove 11 , and the O-type sealing ring 5 is located between the pipeline 8 and the mounting joint 1 .

[0025] A mounting groove 12 is provided in the middle of the mounting joint 1 .

[0026] The front half of the nut 2 is threaded and connected to the connector 3, while the rear half is not threaded.

[0027] A flat sealing gasket 6 is provided between the connecting body 3 and the mounting joint 1 .

[0028] A trapezoidal sealing ring 7 is provided between the connecting piece 3 and the sealing buckle 4 .

[0029] Figure 2 It is a mounting joint 1. The tail of the mounting joint 1 is a threaded structure and needs to be connected to the pipe 8. A sealing groove 11 is provided at the bottom of the mounting joint 1, and an O-type sealing gasket 5 is installed. The sealing is achieved by squeezing the mounting joint 1 and the pipe 8. The middle section of the mounting joint 1 has a mounting groove 12 to facilitate the installation of a wrench.

[0030] Figure 3 It is nut 2. The size of nut 2 matches the installation joint 1. The front half of nut 2 has threads, which are connected to the connector 3, and the rear half has no threads.

[0031] Figure 4 It is a connector 3. The front end of the connector 3 is a round tube with external threads, which is connected to the nut 2, and the rear end is an external hexagon, which is convenient for wrench installation.

[0032] Figure 5 It is a sealing buckle 4, which is used to clamp the trapezoidal sealing ring 7 to prevent leakage.

[0033] like Figure 2 As shown, during installation, the nut 2 is first installed on the left side of the pipeline 8, and the nut 2 leans back to leave enough installation space.

[0034] Afterwards, the sealing buckle 4 and the trapezoidal sealing ring 7 are installed on the threads of the pipeline 8 or pipeline accessories.

[0035] Afterwards, the connector 3 is installed on the thread of the pipeline 8 or the pipeline fitting, as close to the right as possible to leave enough space for installation.

[0036] Afterwards, install the installation joint 1 on the left side and add the O-ring 5 during installation.

[0037] Afterwards, the connector 3 is twisted to the left and a flat sealing gasket 6 is added in the middle until it is tightened.

[0038] Afterwards, the nut 2 and the connector 3 are connected.

[0039] Afterwards, the sealing buckle 4 is screwed outwards to be close to the connecting body 3 and sealed by the trapezoidal sealing ring 7.

[0040] The above description is not a limitation of the design of the utility model, and the design of the utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the design of the utility model also fall within the protection scope of the design of the utility model.

Claims

1. A pipe joint with adjustable interface length, characterized in that: It includes a pipeline, a mounting joint, a nut, a connector and a sealing buckle. The tail of the mounting joint is a threaded structure and is threadedly connected to the pipeline. The connector is threadedly connected to the pipeline. The connector includes an external thread and is threadedly connected to the nut via the external thread.

2. A pipe joint with adjustable interface length as claimed in claim 1, characterized in that: The installation joint is provided with a sealing groove, an O-type sealing gasket is arranged in the sealing groove, and the O-type sealing gasket is located between the pipeline and the installation joint.

3. A pipe joint with adjustable interface length as claimed in claim 1, characterized in that: A mounting groove is provided in the middle of the mounting joint.

4. A pipe joint with adjustable interface length as claimed in claim 1, characterized in that: The front half of the nut has threads connected to the connector, and the rear half has no threads.

5. A pipe joint with adjustable interface length as claimed in claim 1, characterized in that: A flat sealing gasket is provided between the connector and the mounting joint.

6. A pipe joint with adjustable interface length as claimed in claim 1, characterized in that: A trapezoidal sealing ring is arranged between the connector and the sealing buckle.

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