Pipeline air tightness test device

By designing the support frame and locking components, the convenience and safety issues of airtightness testing for specific pipeline sections are resolved, enabling efficient and safe pipeline airtightness testing and improving the installation quality of gas extinguishing systems.

CN223783825UActive Publication Date: 2026-01-09CHINA NUCLEAR IND 24 CONSTR
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Patent Information

Application Number
CN202520496802.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-01-09
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

The existing technology lacks auxiliary devices for airtightness testing of specific pipeline sections, which means that the pipeline network needs to be checked one by one after installation, which is time-consuming and inconvenient. In addition, the high-pressure gas testing conditions are harsh and pose safety hazards.

Method used

A pipeline airtightness testing device is provided, including a support frame, first and second locking components, and a gas cylinder. The support frame accommodates the gas collection pipeline, the locking components ensure the stability of the pipeline and the gas cylinder, and high-pressure gas is provided for testing.

Benefits of technology

It enables rapid and convenient testing of the airtightness of specific pipeline sections, reduces the workload of subsequent inspections, improves testing efficiency and safety, ensures the stability and safety of high-pressure gas operation, and enhances the installation quality of gas fire extinguishing systems.

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Abstract

The utility model relates to the technical field of electromechanical engineering construction, in particular to a pipeline airtightness test device. The device comprises a support frame body, a first locking assembly, a gas cylinder and a second locking assembly, the support frame body is provided with a support groove body suitable for accommodating a gas collection pipeline; the first locking assembly is connected to the supporting frame body so as to lock the gas collecting pipeline in the supporting groove body; the gas cylinder is adjacent to the supporting frame body and is used for being connected with a gas collecting pipeline to provide high-pressure gas; the second locking assembly is connected to the supporting frame body so that the gas cylinder can be locked to the supporting frame body. According to the invention, the airtightness test can be carried out on the gas collection pipeline of a specific section, and the stability and the safety are relatively high.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical and electrical engineering construction, in particular to a pipeline airtightness test device. BACKGROUND

[0002] With the continuous development of social economy, mechanical and electrical installation engineering is involved in more and more fields, and at the same time, with the continuous improvement of fire safety requirements, the protection requirements of important electrical equipment are getting higher and higher. Various gas fire extinguishing systems have been widely used in building mechanical and electrical installation and industrial mechanical and electrical installation engineering, especially in industrial mechanical and electrical installation engineering.

[0003] After the installation of the high-pressure gas pipeline in the gas fire extinguishing system is completed, high-pressure gas needs to be introduced into the pipeline to carry out airtightness test to evaluate whether the pipeline installation is qualified. If the airtightness test is carried out on the entire pipeline network after the installation of the pipeline network is completed, the installation personnel need to check the pipeline network one by one, which takes a lot of time. If the airtightness test is carried out on the installed pipeline section during the installation process, the later checking work can be saved. Since high-pressure gas needs to be introduced into the pipeline to simulate the working state of the pipeline, the conditions are relatively harsh, and there is currently no auxiliary test device for airtightness test of a specific section of pipeline. CONTENT OF THE INVENTION

[0004] The present application provides a pipeline airtightness test device to solve the problems in the background art, which can carry out airtightness test on a specific section of pipeline in the pipeline network.

[0005] The present application is implemented by the following technical solutions:

[0006] A pipeline airtightness test device, comprising:

[0007] A support frame body having a support groove body adapted to accommodate a gas collecting pipeline;

[0008] A first locking assembly connected to the support frame body to lock the gas collecting pipeline in the support groove body;

[0009] A gas cylinder arranged adjacent to the support frame body and used to connect the gas collecting pipeline to provide high-pressure gas;

[0010] A second locking assembly connected to the support frame body to lock the gas cylinder on the support frame body.

[0011] The pipeline gas tightness test device provided by the application can enable an operator to quickly and conveniently perform gas tightness detection on a specific section of pipeline, without waiting for the entire pipeline network to be installed, thereby significantly improving detection efficiency; through the segmented detection mode, pipeline leakage points can be found and repaired early, reducing the workload of later troubleshooting and reducing construction costs; in addition, the high stability and safety design of the pipeline gas tightness test device ensure that the detection process under high-pressure gas operating conditions is safe and reliable, avoiding safety hazards caused by improper operation, and the application of the pipeline gas tightness test device can effectively improve the installation quality of the high-pressure gas pipeline of the gas fire extinguishing system, ensuring the safety and reliability of the system.

[0012] In some optional embodiments, the support frame body comprises:

[0013] The first support is used for connecting the support platform.

[0014] The second support is arranged in a spaced manner with the first support and is used for being connected to the support platform.

[0015] The support cross beam is connected to the first support and the second support at two ends, respectively, and the second locking assembly is connected to the support cross beam.

[0016] In some optional embodiments, the first support comprises:

[0017] The first connecting seat is used for connecting the support platform.

[0018] The first structure column is connected to the first connecting seat and is arranged in a spaced manner, and adjacent two first structure columns are connected through the reinforcing beam.

[0019] The first support column is connected to the first connecting seat at one end and is connected to the support groove body at the other end, and the first support column is further connected to the reinforcing beam.

[0020] In some optional embodiments, the first connecting seat is configured as a channel steel, wherein the notch of the first connecting seat faces the support platform in the working state.

[0021] In some optional embodiments, the first structure column is configured as a channel steel and the number thereof is configured as two, wherein the first support column is located between the two first structure columns.

[0022] In some optional embodiments, the second support base comprises:

[0023] A second connecting seat for connecting the support platform;

[0024] At least two second structure columns are connected to the second connecting seat and are arranged at intervals, and two adjacent second structure columns are connected by a reinforcing beam.

[0025] A second support column, one end of which is connected to the second connecting seat and the other end of which is connected to the support groove body, and the second support column is further connected to the reinforcing beam.

[0026] In some optional embodiments, the second connecting seat is configured as a channel steel, wherein the notch of the second connecting seat faces the support platform in the working state.

[0027] In some optional embodiments, the second structure column is configured as a channel steel and the number thereof is configured as two, wherein the second support column is located between the two second structure columns.

[0028] In some optional embodiments, the first locking assembly is configured as a single-side hoop, and the two ends of the single-side hoop are respectively connected to the support groove body through locking bolts.

[0029] In some optional embodiments, the second locking assembly is configured as a single-side hoop, and the two ends of the single-side hoop are respectively connected to the support frame body through locking bolts.

[0030] Compared with the prior art, the present application has the following advantages and beneficial effects:

[0031] The pipeline gas tightness test device provided by the application enables an operator to quickly and conveniently detect the gas tightness of a specific section of pipeline without waiting for the entire pipeline network to be installed, thereby significantly improving detection efficiency; through the segmented detection mode, pipeline leakage points can be found and repaired early, reducing the workload of later troubleshooting and reducing construction costs; in addition, the high stability and safety design of the pipeline gas tightness test device ensures that the detection process under high-pressure gas operating conditions is safe and reliable, avoiding safety hazards caused by improper operation, and the application of the pipeline gas tightness test device can effectively improve the installation quality of the high-pressure gas pipeline of the gas fire extinguishing system and ensure the safety and reliability of the system. BRIEF DESCRIPTION OF DRAWINGS

[0032] The drawings described herein are used to provide further understanding of the embodiments of the application, constitute a part of the application, and do not constitute a limitation on the embodiments of the application. In the drawings:

[0033] Figure 1 The pipeline gas tightness test device structure schematic diagram provided by the embodiments of the application;

[0034] Figure 2 The support frame structure schematic diagram provided by the embodiments of the application;

[0035] Figure 3 The first support structure schematic diagram provided by the embodiments of the application;

[0036] Figure 4 The second support structure schematic diagram provided by the embodiments of the application;

[0037] Figure 5 The gas collecting pipeline installation structure schematic diagram provided by the embodiments of the application;

[0038] Figure 6 Another gas collecting pipeline installation structure schematic diagram provided by the embodiments of the application.

[0039] Markings in the drawings and corresponding component names:

[0040] 1-support frame, 11-first support, 111-first connecting seat, 112-first structure column, 113-first support column, 12-second support, 121-second connecting seat, 122-second structure column, 123-second support column, 13-support cross beam, 2-gas cylinder, 3-second locking assembly, 4-gas collecting pipeline, 5-support groove body, 6-first locking assembly, 7-first spiral spring, 8-second spiral spring, 9-stiffening beam. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application in combination with embodiments and drawings, the illustrative embodiments and the description thereof are only used to explain the present application, but not to limit the present application.

[0042] As shown in Figure 1 The pipeline gas tightness test device provided by the embodiment of the present application includes a support frame body 1, a first locking assembly 6, a gas cylinder 2 and a second locking assembly 3. The support frame body 1 has a support groove 5 suitable for accommodating a gas collecting pipeline 4. After the gas collecting pipeline 4 is placed in the support groove 5, the length direction of the gas collecting pipeline 4 coincides with the length direction of the gas collecting pipeline 4, so that the support groove 5 can form radial limiting for the gas collecting pipeline 4 and can provide support force for the gas collecting pipeline 4. The first locking assembly 6 is connected to the support frame body 1 to lock the gas collecting pipeline 4 in the support groove 5, so that the gas collecting pipeline 4 and the support groove 5 can be relatively fixed. The gas cylinder 2 is arranged adjacent to the support frame body 1 and is used to connect the gas collecting pipeline 4 to provide high-pressure gas. The second locking assembly 3 is connected to the support frame body 1 to lock the gas cylinder 2 on the support frame body 1, so that the gas cylinder 2 and the support frame body 1 can be relatively fixed.

[0043] In the embodiment of the present application, high-pressure gas is introduced into the gas collecting pipeline 4 in the service state, so in actual implementation, the gas cylinder 2 is configured as a high-pressure gas cylinder 2 to enable the gas collecting pipeline 4 to simulate the actual working environment.

[0044] In the embodiment of the present application, the support platform can be the ground or an additionally provided support base.

[0045] In use, the support frame body 1 is erected below the already installed specific section pipeline to enable the gas collecting pipeline 4 to be located in the support groove 5, and the support frame body 1 is fixed on the support platform. All the gas collecting pipelines 4 and supports along the line in the test room are checked to ensure that the pipeline has been installed and fastened, and the gas pipeline sections are checked one by one, mainly to check whether the plugging of the pipeline is safe and firm, and whether the entire pipeline network support and hanger is stable. Problems found in the field process are processed in time to prepare for the test. The first locking assembly 6 is used to relatively fix the gas collecting pipeline 4 and the support groove 5, the second locking assembly 3 is used to relatively fix the gas cylinder 2 and the support frame body 1, the gas cylinder 2 and the gas collecting pipeline 4 are communicated through a high-pressure hose, soap water is applied at the connection between the pipeline and the pipe fitting, the high-pressure gas cylinder 2 is opened, and whether there is a leakage point is observed.

[0046] The pipeline gas tightness test device provided by the embodiment of the application can support the gas collecting pipeline 4 in the support groove body 5, so as to provide a stable fixing platform for the pipeline, ensure that the pipeline remains stable when high-pressure gas is introduced, and avoid affecting the detection accuracy due to vibration or displacement; the first locking assembly 6 firmly locks the gas collecting pipeline 4 in the support groove body 5, further enhances the stability of the pipeline, prevents the pipeline from loosening or deviating under high pressure, and thus ensures the accuracy of the detection result; the gas cylinder 2 is arranged adjacent to the support frame body 1 and is connected to the gas collecting pipeline 4 through the pipeline, so as to provide the required high-pressure gas for the gas tightness test; the second locking assembly 3 fixes the gas cylinder 2 on the support frame body 1, ensures the stability of the gas cylinder 2 during the operation of high-pressure gas, avoids the gas cylinder 2 from moving or toppling due to pressure changes or external factors, and improves the safety of the operation. The pipeline gas tightness test device enables the operator to quickly and conveniently perform the gas tightness detection on a specific section of the pipeline without waiting for the entire pipeline network to be installed, thereby significantly improving the detection efficiency; through the sectional detection mode, the pipeline leakage point can be found and repaired as soon as possible, the workload of the later troubleshooting is reduced, and the construction cost is reduced; in addition, the high stability and safety design of the pipeline gas tightness test device ensures that the detection process under the operation condition of high-pressure gas is safe and reliable, and avoids the safety hazards caused by improper operation. The application of the pipeline gas tightness test device can effectively improve the installation quality of the high-pressure gas pipeline of the gas fire extinguishing system and ensure the safety and reliability of the system.

[0047] In some optional embodiments, as shown in Figure 2 The support frame body 1 includes a first support 11, a second support 12, and a support cross beam 13; the first support 11 is used for connecting a support platform; the second support 12 is arranged at intervals with the first support 11 and is used for being connected to the support platform; and the support cross beam 13 is connected to the first support 11 and the second support 12 at two ends, wherein the second locking assembly 3 is connected to the support cross beam 13.

[0048] In the embodiment of the application, the first support 11 and the second support 12 are arranged at intervals and connected to the support platform, thereby providing a solid foundation for the entire device, ensuring that the device remains stable during the operation of high-pressure gas, and avoiding that the device tilts or moves instantaneously due to the introduction of high-pressure gas into the gas collecting pipeline 4; the support cross beam 13 is connected to the first support 11 and the second support 12 at two ends, thereby forming a rigid frame structure, which not only enhances the overall strength of the support frame body 1, but also provides a reliable mounting position for the second locking assembly 3; the second locking assembly 3 is connected to the support cross beam 13, can firmly fix the gas cylinder 2 on the support frame body 1, ensures that the gas cylinder 2 remains stable when high-pressure gas is introduced, and avoids safety hazards caused by the movement or toppling of the gas cylinder 2.

[0049] This design enables the device to adapt to the needs of different working environments, while improving the convenience and safety of operation. The modular structure of the support frame body 1 facilitates installation and disassembly, enhancing the flexibility and applicability of the device. In addition, the rigid design of the support beam 13 effectively disperses the weight of the gas cylinder 2 and the pipeline, reducing local stress concentration and prolonging the service life of the device. Overall, this embodiment further improves the stability, safety and operation efficiency of the pipeline gas tightness test device by optimizing the structure of the support frame body 1, providing reliable technical support for the segmented detection of high-pressure gas pipelines.

[0050] In actual implementation, reference can be made to Figure 3 , the first support 11 can include a first connecting seat 111, a first structural column 112, and a first support column 113; the first connecting seat 111 is used to connect the support platform, and the first connecting seat 111 can adopt a channel steel, and after the first connecting seat 111 is installed with the support platform, the slot of the first connecting seat 111 faces the support platform; at least two first structural columns 112 are connected to the first connecting seat 111 and are arranged at intervals, the first structural column 112 can adopt a channel steel, and the first structural column 112 and the first connecting seat 111 can be connected by vertical welding to ensure the stability of their connection, and adjacent two first structural columns 112 are connected by a reinforcing beam 9, which can adopt a channel steel; the first connecting seat 111, the first structural column 112, and the reinforcing beam 9 jointly form a rectangular frame to ensure that the first support 11 has good structural strength; one end of the first support column 113 is connected to the first connecting seat 111, and the first support column 113 can adopt a channel steel and be vertically welded with the first connecting seat 111 to ensure the stability of their connection, the first support column 113 is located in the middle of the two first structural columns 112, and the other end is connected with the support groove body 5 to provide support for the support groove body 5, wherein the length of the first support column 113 is greater than the length of the first structural column 112, and the first support column 113 is also connected with the reinforcing beam 9; in actual implementation, the number of reinforcing beams 9 is at least two, and the two reinforcing beams 9 are located on both sides of the first support column 113, one end of each reinforcing beam 9 is vertically welded with the first support column 113, and the other end is vertically welded with the first structural column 112 away from the end of the first connecting seat 111.

[0051] In actual implementation, reference can be made to Figure 4The second support 12 can include a second connecting base 121, second structure columns 122 and a second support column 123. The second connecting base 121 is used to connect the support platform, and the second connecting base 121 can be a channel steel. After the second connecting base 121 is mounted with the support platform, the slot of the second connecting base 121 faces the support platform. The second structure columns 122 are connected to the second connecting base 121 and are arranged at intervals. The second structure columns 122 can be channel steels. The second structure columns 122 and the second connecting base 121 can be connected by vertical welding to ensure the stability of the connection. Adjacent two second structure columns 122 are connected by a reinforcing beam 9. The reinforcing beam 9 can be a channel steel. The second connecting base 121, the second structure columns 122 and the reinforcing beam 9 jointly form a rectangular frame to ensure that the second support 12 has good structural strength. The second support column 123 is connected to the second connecting base 121 at one end. The second support column 123 can be a channel steel and is vertically welded to the second connecting base 121 to ensure the stability of the connection. The second support column 123 is located in the middle of the two second structure columns 122. The other end of the second support column 123 is connected to the support groove body 5 to provide support for the support groove body 5. The first support column 113 and the second support column 123 are respectively connected to the end portions at both ends of the support groove body 5 in the length direction. The length of the second support column 123 is greater than the length of the second structure column 122. The second support column 123 is also connected to the reinforcing beam 9. In actual implementation, the number of reinforcing beams 9 is at least two. The two reinforcing beams 9 are respectively located on the two sides of the second support column 123. One end of each reinforcing beam 9 is vertically welded to the second support column 123, and the other end is vertically welded to the second structure column 122 away from the end of the second connecting base 121.

[0052] In some optional embodiments, as shown in Figure 5 The first locking assembly 6 is configured as a single-sided hoop, and the two ends of the single-sided hoop are connected to the support groove body 5 through locking bolts.

[0053] In the embodiments of the present application, the gas collecting pipe 4 is circular, so the single-sided hoop can be a circular single-sided hoop matched with the gas collecting pipe 4. In other embodiments, the single-sided hoop can also be a square hoop.

[0054] In some optional embodiments, refer to Figure 6The locking bolt is sleeved with a first coil spring 7 and a second coil spring 8, and the first coil spring 7 and the second coil spring 8 are located on both sides of the single-side hoop end. When the locking bolt is connected with the support groove body 5, the single-side hoop and the support groove body 5 compress the first coil spring 7, and the single-side hoop and the nut of the locking bolt compress the second coil spring 8. In this way, when the gas cylinder 2 is opened at the moment, the first coil spring 7 and the second coil spring 8 can provide a certain buffer when the gas collecting pipeline 4 shakes, so as to avoid that the gas collecting pipeline 4 is subjected to a large radial strain and prevent damage to the gas collecting pipeline 4 during the test process. At the same time, compared with the mechanical locking of the single-side hoop to the gas collecting pipeline 4, the locking force is not easy to be uniform, and the stress of each section of the gas collecting pipeline 4 is uneven in the axial direction. Through the arrangement of the first coil spring 7 and the second coil spring 8, the locking bolt does not have to be completely locked on the support groove body 5. When locking the gas collecting pipeline 4, the staff can control the locking force by controlling the height of the first coil spring 7 or the second coil spring 8, so as to make the stress of each section of the gas collecting pipeline 4 more uniform in the axial direction. The size of the first coil spring 7 and the second coil spring 8 can be consistent or inconsistent, and the length of the first coil spring 7 and the second coil spring 8 can be consistent or inconsistent.

[0055] In some optional embodiments, reference can be made to Figure 1 The second locking assembly 3 is configured as a single-side hoop, and the two ends of the single-side hoop are connected with the support frame body 1 through locking bolts respectively. In this way, the convenience of fixing the gas cylinder 2 can be improved, and the relative stability of the gas cylinder 2 and the support frame body 1 can be ensured.

[0056] The above describes the embodiments of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the description. Although the description of the present application is introduced in combination with some embodiments, this does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application in combination with the embodiments is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details are included in the above description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details are omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0057] It should be noted that in the description of the application, similar reference numerals and letters in different drawings represent similar items, therefore, once an item is defined in one drawing, it is not necessary to further define and explain it in the subsequent drawings. In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A device for testing the tightness of a pipe, characterized in that it comprises: The utility model relates to a support frame body (1) has the support groove (5) suitable for containing the gas collecting pipeline (4), the first locking assembly (6) is connected on the support frame body (1) to lock the gas collecting pipeline (4) in the support groove (5), the gas cylinder (2) is arranged with the support frame body (1) adjacent and is used to connect the gas collecting pipeline (4) to provide high pressure gas, the second locking assembly (3) is connected on the support frame body (1) to lock the gas cylinder (2) on the support frame body (1). The support frame body (1) comprises: The first support (11) is used for connecting the support platform, the second support (12) is arranged with the first support (11) interval and is used for connecting in the support platform, the support crossbeam (13) both ends are connected with the first support (11) and the second support (12) respectively, and the second locking assembly (3) is connected on the support crossbeam (13). The first support (11) comprises: The first connecting seat (111) is used for connecting the support platform, at least two first structure columns (112) are connected on the first connecting seat (111) and are arranged at intervals, and two adjacent first structure columns (112) are connected by the reinforcing beam (9), the first support column (113) one end is connected on the first connecting seat (111), the other end is connected with the support groove (5), and the first support column (113) is also connected with the reinforcing beam (9).

2. The pipeline gas tightness testing apparatus of claim 1, wherein, The first connecting seat (111) is configured as a channel steel, and in the working state, the slot of the first connecting seat (111) faces the support platform. The first structure column (112) is configured as a channel steel and the number is configured as two, and the first support column (113) is located between the two first structure columns (112). The second support (12) comprises: The second connecting seat (121) is used for connecting the support platform, at least two second structure columns (122) are connected on the second connecting seat (121) and are arranged at intervals, and two adjacent second structure columns (122) are connected by the reinforcing beam (9), the second support column (123) one end is connected on the second connecting seat (121), the other end is connected with the support groove (5), and the second support column (123) is also connected with the reinforcing beam (9).

3. The pipeline gas tightness testing apparatus of claim 2, wherein, The second connecting seat (121) is configured as a channel steel, and in the working state, the slot of the second connecting seat (121) faces the support platform. The second structure column (122) is configured as a channel steel and the number is configured as two, and the second support column (123) is located between the two second structure columns (122). ​ ​ 4. The apparatus according to claim 3, wherein ​ 5. The apparatus according to claim 3, wherein ​ 6. The pipeline gas tightness testing apparatus of claim 2, wherein, ​ ​ ​ ​ 7. The pipeline gas tightness testing apparatus of claim 6, wherein, ​ 8. The pipeline gas tightness testing apparatus of claim 6, wherein, ​ 9. The pipeline gas tightness testing apparatus of claim 1, wherein, The first locking assembly (6) is configured as a single-side hoop, two ends of which are connected with the support groove body (5) through locking bolts respectively.

10. The pipeline gas tightness testing apparatus of claim 1, wherein, The second locking assembly (3) is configured as a single-side hoop, two ends of which are connected with the support frame body (1) through locking bolts respectively.