Flexible pipeline pressure test pipe end sealing auxiliary device

Abstract

A flexible pipeline pressure test pipe end sealing auxiliary device comprises a connecting chain shackle and two sealing cover plates. According to the efficient and universal pipeline pressure test pipe end sealing auxiliary device, the typical problem that a pipe opening cannot be efficiently sealed in the pressure test and leakage detection process after welding of a splicing welding pipeline is solved. The sealing device is simple in structure and convenient to operate, can be flexibly adjusted and is suitable for sealing flat and straight pipe fittings in various directions during pressure test and leakage detection, the processing efficiency is improved, and the production cost is reduced. The pipe end sealing device can effectively improve the pressure test production efficiency, and is suitable for pipe end sealing of pipelines of various specifications and structures in the pressure test process. The pressure test pipeline sealing device is simple in structure and convenient to operate, and the sealing cover plate and the connecting chain shackle can be adaptively adjusted according to different pipe diameters and structural lengths of pressure test pipelines so as to meet the pressure test sealing requirement.

Description

Technical Field

[0001] The utility model relates to the field of sheet metal pipeline processing, in particular to a flexible pipeline pressure test pipe end sealing auxiliary device. Background Art

[0002] Due to the structure of the bending mold of the pipe bending equipment, the pipe bending process requires a process margin for continuous bending. In order to meet the design size requirements, the process margin needs to be removed after the bending process is completed and then welded together. In order to ensure the sealing reliability of the pipeline after welding, the process often uses air pressure testing to test its sealing. For the common pipe end with a boss design structure, the pressure test can be effectively sealed by connecting a hose and fixing it with a clamp. However, there is currently no efficient sealing method for the pressure test of pipe fittings with straight pipe ends. In actual processing, it is often necessary to reserve margins for the boss processing and remove them after the pressure test is completed. This method wastes raw materials, increases the process flow, and increases production costs.

[0003] Therefore, it is necessary to provide an auxiliary device that can flexibly solve the sealing pressure test of straight pipe ends. Utility Model Content

[0004] The utility model aims to provide a flexible pipeline pressure test pipe end sealing auxiliary device, comprising: a connecting chain buckle and two sealing cover plates.

[0005] Both ends of the connecting chain buckle are respectively connected with a bolt.

[0006] A bolt head is provided at the center of one end surface of the sealing cover plate, and a threaded through hole is provided in the bolt head along the axial direction.

[0007] The threaded through hole in the bolt head matches the bolt.

[0008] A tightening handle is provided on one side of the bolt head.

[0009] The two sealing cover plates are arranged opposite to each other, with the opposite sides facing away from the end surface where the bolt heads are located.

[0010] The two sealing cover plates are provided with grooves on opposite sides thereof which match the diameter of the pipe fittings.

[0011] A sealing cover plate is connected to a connecting chain buckle through a bolt and a bolt head. The connecting chain buckle extends into the pipe fitting. The bolt at the other end of the connecting chain buckle is connected to the bolt head of another sealing cover plate. The pipe fitting is sealed by rotating and tightening the handle.

[0012] The sealing auxiliary device is connected to the pressure testing device through the threaded through hole of the bolt head.

[0013] Furthermore, the length of the connecting chain buckle is adjusted according to the length of the pipeline.

[0014] Furthermore, a sealing rubber is provided in the groove.

[0015] The technical effect of the present invention is unquestionable. The present invention is an efficient and universal pipeline pressure test pipe end sealing auxiliary device, which solves the typical problem that the pipe end cannot be efficiently sealed during the pressure test and leak detection process of the welded pipeline after welding.

[0016] The utility model has a simple structure and is easy to operate. It can be flexibly adjusted and adapted to seal various straight pipe orifice pipe fittings during pressure testing and leak detection, thereby improving processing efficiency and reducing production costs.

[0017] The application of the utility model can effectively improve the pressure test production efficiency and is suitable for pipe end sealing in the pressure test process of pipelines with various specifications and structures.

[0018] The utility model has the advantages of simple structure and convenient operation, and can adaptively adjust the sealing cover plate and the connecting chain buckle according to different pipe diameters and structural lengths of the pressure test pipeline to meet the pressure test sealing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of the sealing auxiliary device;

[0020] Figure 2 Schematic diagram of partial components of the sealing auxiliary device I;

[0021] Figure 3 Schematic diagram of partial components of the sealing auxiliary device II;

[0022] Figure 4 This is a schematic diagram of the operating principle of the sealing auxiliary device;

[0023] In the figure, there are connecting chain buckle 1, sealing cover plate 2, bolt 3, bolt head 4, tightening handle 5, and groove 6. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the following embodiments. However, it should not be understood that the scope of the present invention is limited to the following embodiments. Without departing from the above technical concept of the present invention, various substitutions and modifications based on common technical knowledge and customary means in the field should be included in the scope of protection of the present invention.

[0025] Example 1:

[0026] See also Figures 1 to 4 , a flexible pipeline pressure test pipe end sealing auxiliary device, including: a connecting chain buckle 1 and two sealing cover plates 2.

[0027] The two ends of the connecting chain 1 are respectively connected with a bolt 3 .

[0028] A bolt head 4 is provided at the center of one end surface of the sealing cover plate 2 , and a threaded through hole is provided in the bolt head 4 along the axial direction.

[0029] The threaded through hole in the bolt head 4 matches the bolt 3 .

[0030] A tightening handle 5 is provided on one side of the bolt head 4 .

[0031] The two sealing cover plates 2 are arranged opposite to each other, with the opposite sides facing away from the end surface where the bolt head 4 is located.

[0032] The two sealing cover plates 2 are provided with grooves 6 on opposite sides thereof that match the diameter of the pipe.

[0033] A sealing cover plate 2 is connected to a connecting chain buckle 1 through a bolt 3 and a bolt head 4. The connecting chain buckle 1 extends into the interior of the pipe fitting. The bolt 3 at the other end of the connecting chain buckle 1 is connected to the bolt head 4 of another sealing cover plate 2. The pipe fitting is sealed by rotating and tightening the handle 5.

[0034] The sealing auxiliary device is connected to the pressure testing device via the threaded through hole of the bolt head 4 .

[0035] Example 2:

[0036] A flexible pipeline pressure test pipe end sealing auxiliary device, the main technical content of which is shown in Example 1. Furthermore, the length of the connecting chain buckle 1 is adjusted according to the length of the pipeline.

[0037] Example 3:

[0038] A flexible pipeline pressure test pipe end sealing auxiliary device, the main technical content of which is shown in any one of Examples 1 to 2. Furthermore, a sealing rubber is provided in the groove 6.

[0039] Example 4:

[0040] See also Figures 1 to 4 , a flexible pipeline pressure test pipe end sealing auxiliary device, including: a connecting chain buckle 1 and two sealing cover plates 2.

[0041] The two ends of the connecting link 1 are respectively connected with a bolt 3.

[0042] A bolt head 4 is provided at the center of one end surface of the sealing cover plate 2 , and a threaded through hole is provided in the bolt head 4 along the axial direction.

[0043] The threaded through hole in the bolt head 4 matches the bolt 3 .

[0044] A tightening handle 5 is provided on one side of the bolt head 4 .

[0045] The two sealing cover plates 2 are arranged opposite to each other, with the opposite sides facing away from the end surface where the bolt head 4 is located.

[0046] The two sealing cover plates 2 are provided with grooves 6 on opposite sides thereof that match the diameter of the pipe.

[0047] A sealing cover plate 2 is connected to a connecting chain buckle 1 through a bolt 3 and a bolt head 4. The connecting chain buckle 1 extends into the interior of the pipe fitting. The bolt 3 at the other end of the connecting chain buckle 1 is connected to the bolt head 4 of another sealing cover plate 2. The pipe fitting is sealed by rotating and tightening the handle 5.

[0048] The sealing auxiliary device is connected to the pressure testing device via the threaded through hole of the bolt head 4 .

[0049] like Figure 2 As shown, the bolt head at one end of the device has a threaded through-hole, which serves as the air inlet for connecting to the pressure test device. Adjust the length of the connecting chain according to the diameter and length of the pipeline and select a sealing cover plate of the matching specifications. First, assemble one end and pass the connecting chain through the pipeline. Then, assemble the collar end. Tighten the two ends with the tightening handle to complete the pipeline sealing. Connect the threaded through-hole to the pressure test device to complete the pressure test.

[0050] Example 5:

[0051] A flexible pipeline pressure test pipe end sealing auxiliary device, the main technical content of which is shown in Example 4. Furthermore, the length of the connecting chain buckle 1 is adjusted according to the length of the pipeline.

[0052] Example 6:

[0053] A flexible pipeline pressure test pipe end sealing auxiliary device, the main technical content of which is shown in any one of Examples 4 to 5. Furthermore, a sealing rubber is provided in the groove 6.

[0054] Example 7:

[0055] See also Figures 1 to 4 , a flexible pipeline pressure test pipe end sealing auxiliary device, the main technical contents are as follows:

[0056] By making Figure 1 The device shown in the figure mainly consists of a bolt head, a sealing cover, a tightening handle and a connecting chain. The connecting chain can be adjusted according to the length of the pipeline. The end face of the sealing cover is provided with a groove that matches the diameter and thickness of the pipe fitting, and the groove surface is attached with a sealing rubber. Figure 2 and Figure 3 As shown in the figure, the bolt head at one end of the device is provided with a threaded through hole, which serves as the air inlet for connecting the pressure test device. Figure 4 According to the diameter and length of the pipeline, adjust the length of the connecting chain buckle and select the sealing cover plate of matching specifications. First assemble one end and pass the connecting chain buckle through the pipeline, then assemble the other end. Tighten the two ends with the tightening handle to complete the pipeline sealing. Connect the threaded through hole to the pressure test device to complete the pressure test.

Claims

1. A flexible pipeline pressure test pipe end sealing auxiliary device, characterized in that: include: Connecting the chain buckle (1) and the two sealing cover plates (2); The two ends of the connecting chain buckle (1) are respectively connected to a bolt (3); A bolt head (4) is provided at the center of one end surface of the sealing cover plate (2), and a threaded through hole is provided in the bolt head (4) along the axial direction; The threaded through hole in the bolt head (4) matches the bolt (3); A tightening handle (5) is provided on one side of the bolt head (4); The two sealing cover plates (2) are arranged opposite to each other, with the opposite sides facing away from the end surface where the bolt head (4) is located; A groove (6) matching the diameter of the pipe is provided on opposite sides of the two sealing cover plates (2); A sealing cover plate (2) is connected to a connecting chain buckle (1) through a bolt (3) and a bolt head (4), the connecting chain buckle (1) extends into the interior of the pipe fitting, the bolt (3) at the other end of the connecting chain buckle (1) is connected to the bolt head (4) of another sealing cover plate (2), and the pipe fitting is sealed by rotating and tightening the handle (5); The sealing auxiliary device is connected to the pressure testing device via the threaded through hole of the bolt head (4).

2. A flexible pipeline pressure test pipe end sealing auxiliary device according to claim 1, characterized in that: The length of the connecting chain buckle (1) is adjusted according to the length of the pipeline.

3. The flexible pipeline pressure test pipe end sealing auxiliary device according to claim 1, characterized in that: A sealing rubber is provided in the groove (6).

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