End face sealing test device

Abstract

The utility model discloses an end face sealing test device, which comprises a test joint, a slot for inserting a gas cylinder interface is arranged in the test joint, a step groove is arranged at the inner side end part of the slot far away from a gas cylinder, a first sealing ring is filled between the step groove and the gas cylinder interface, and a second sealing ring is filled between the first sealing ring and the gas cylinder interface. The end portion, close to the gas cylinder, of the inserting groove is turned outwards to form an arc surface which is attached to the surface of a gas cylinder connector, and a second sealing ring is filled between the arc surface and the gas cylinder connector. Through the design of the test joint, the slot, the stepped groove, the first sealing ring, the arc surface, the second sealing ring, the test connecting ring, the locking assembly and other parts, efficient sealing of the gas cylinder interface is realized, the sealing performance is improved, the reliability and the stability in the test process are ensured, the test is carried out in a double-sealing mode, and the test efficiency is improved. Different from conventional air tightness test equipment, it is ensured that no air leakage phenomenon exists at the interface in a high-pressure environment, and the accuracy of a test result is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder testing technology, specifically to an end-face sealing test device. Background Technology

[0002] In aerospace propulsion systems, pressure vessels such as gas cylinders are used to store high-pressure gases or liquids, and the sealing performance of their interfaces directly affects the safety and reliability of the system. During testing, as the pressure gradually increases, if the interface seal is substandard, leakage will occur, causing the test to fail to reach the expected pressure requirements, thus affecting the quality and safety of the product. To improve the reliability and stability of the testing process, it is urgent to design a testing device that can effectively ensure the sealing of gas cylinder interfaces. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an end-face sealing test device, which solves the problem that air leakage easily occurs at the interface as the pressure gradually increases during the existing test process.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an end-face sealing test device, comprising a test connector, wherein the test connector is provided with a slot for inserting a gas cylinder interface, the inner end of the slot away from the gas cylinder is provided with a stepped groove, a first sealing ring is filled between the stepped groove and the gas cylinder interface, the end of the slot near the gas cylinder is folded outward to form an arc surface and fits against the surface of the gas cylinder interface, a second sealing ring is filled between the arc surface and the gas cylinder interface, a test connecting ring is fitted on the outer side of the gas cylinder interface, and the test connecting ring is connected to the test connector by a locking assembly.

[0005] Preferably, the test connecting ring is a ring structure formed by combining a pair of semi-circular rings, and a pair of test connecting plates are provided at the joint of the pair of semi-circular rings. The test connecting plates connect the pair of semi-circular rings by a pair of first bolts.

[0006] Preferably, the locking assembly includes a plurality of mounting holes located at the edge of the test joint, a second bolt is inserted into the mounting holes, and the test connecting ring is provided with a threaded hole that matches the second bolt, the second bolt being screwed into the threaded hole.

[0007] Preferably, the number of the second bolts is six, and they are located on both sides of the gas cylinder interface.

[0008] Preferably, the second bolts on one side and the second bolts on the other side are centrally symmetrically distributed.

[0009] Beneficial effects

[0010] This utility model provides an end-face sealing test device, which has the following beneficial effects:

[0011] By designing components such as test connectors, slots, stepped grooves, first sealing rings, arc surfaces, second sealing rings, test connecting rings, and locking assemblies, efficient sealing of the gas cylinder interface is achieved, which not only improves sealing performance but also ensures reliability and stability during the test process.

[0012] The test employs a double-sealing design, unlike conventional airtightness testing equipment. A first sealing ring is installed between the stepped groove and the gas cylinder interface, while a second sealing ring is installed between the arc surface and the gas cylinder interface. This ensures no air leakage at the interface under high pressure, improving the accuracy of the test results.

[0013] The design of the test joint, test connecting ring, and locking assembly makes the entire device compact, easy to install and disassemble. The use of multiple second bolts distributed in a centrally symmetrical manner ensures uniform clamping force between the test connecting ring and the test joint, avoiding the risk of seal failure or damage caused by local stress concentration.

[0014] This device uses common mechanical components, has relatively low manufacturing costs, is easy to maintain, and has a high cost-performance ratio. At the same time, its versatility and adaptability enable it to play an important role in various gas cylinder pressure vessel testing scenarios, and it has high practical value. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 3 This is a side view of the structure of this utility model.

[0018] In the diagram: 1. Test connector; 2. Test connecting plate; 3. Test connecting ring; 4. First sealing ring; 5. Second sealing ring; 6. First bolt; 7. Second bolt; 8. Gas cylinder. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3This utility model provides a technical solution: an end-face sealing test device, including a test connector 1, the test connector 1 having a slot for inserting a gas cylinder 8 interface, the inner end of the slot away from the gas cylinder 8 having a stepped groove, a first sealing ring 4 being filled between the stepped groove and the gas cylinder 8 interface, the end of the slot near the gas cylinder 8 being folded outward to form an arc surface that fits against the surface of the gas cylinder 8 interface, a second sealing ring 5 being filled between the arc surface and the gas cylinder 8 interface, a test connecting ring 3 being fitted on the outer side of the gas cylinder 8 interface, and the test connecting ring 3 being connected to the test connector 1 by a locking assembly.

[0021] By adopting the above technical solution, a first sealing ring 4 is filled between the stepped groove and the gas cylinder 8 interface. This design allows the first sealing ring 4 to initially seal when the gas cylinder 8 interface is inserted into the slot. The end of the slot near the gas cylinder 8 is folded outward to form an arc surface that fits against the surface of the gas cylinder 8 interface. A second sealing ring 5 is filled between the arc surface and the gas cylinder 8 interface. This design further enhances the sealing effect and ensures the reliability of the seal under high pressure. The design of the locking component ensures a tight connection between the test connecting ring 3 and the test connector 1, preventing loosening under high pressure. The above solution achieves a double seal for the gas cylinder 8 interface under high pressure, significantly improving the sealing performance, ensuring the safety and reliability of the test process, and preventing gas leakage.

[0022] In this embodiment, the test connecting ring 3 is formed by combining a pair of semi-circular rings to form a circular structure. A pair of test connecting plates 2 are provided at the joint of the pair of semi-circular rings. The test connecting plates 2 connect the pair of semi-circular rings by a pair of first bolts 6.

[0023] By adopting the above technical solution, a test connection ring 3 that is easy to assemble and disassemble is provided, which can adapt to the interface of gas cylinders 8 of different sizes, simplifying the operation process and improving work efficiency.

[0024] In this embodiment, the locking assembly includes several mounting holes located at the edge of the test joint 1, a second bolt 7 is inserted into the mounting holes, and the test connecting ring 3 is provided with a screw hole that matches the second bolt 7, and the second bolt 7 is screwed into the screw hole.

[0025] By adopting the above technical solution and tightening the second bolt 7, a tight connection between the test connecting ring 3 and the test joint 1 can be ensured, preventing loosening under high pressure, providing a reliable locking method, and enhancing the stability and safety of the system.

[0026] In this embodiment, the number of the second bolts 7 is six, and they are located on both sides of the gas cylinder 8 interface.

[0027] By adopting the above technical solution, uniform pressure distribution is ensured, local stress concentration is avoided, and the sealing effect is improved.

[0028] In this embodiment, the second bolt 7 on one side and the second bolt 7 on the other side are arranged in a centrally symmetrical manner.

[0029] By adopting the above technical solution, the balance and stability of the entire device are ensured, preventing displacement or deformation under high pressure.

[0030] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0031] Example: In use, insert the gas cylinder 8 interface into the slot in the test connector 1, ensuring it enters the stepped groove and contacts the arc surface. A double seal is ensured by the first sealing ring 4 between the stepped groove and the gas cylinder 8 interface, and the second sealing ring 5 between the arc surface and the gas cylinder 8 interface. The test connecting ring 3 is then fitted onto the outside of the gas cylinder 8 interface. A pair of semi-circular rings are connected into a complete circular structure using the test connecting plate 2 and the first bolt 6. The test connecting ring 3 is then tightly connected to the test connector 1 using the second bolt 7 in the mounting hole, ensuring the stability and sealing of the entire device. After sealing, open the gas source ball valve, and the test gas enters the gas cylinder 8 through the pressure regulating valve. Gradually increase the pressure to conduct an airtightness test. After the test, check for loose fastening bolts and perform torque checks to ensure no damage to the gas cylinder 8 base, guaranteeing the safety and effectiveness of the test process.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A face sealing test device, comprising a test joint (1), characterized in that, The test connector (1) is provided with a slot for inserting a gas cylinder (8) interface. The inner end of the slot away from the gas cylinder (8) is provided with a stepped groove. A first sealing ring (4) is filled between the stepped groove and the gas cylinder (8) interface. The end of the slot away from the first sealing ring (4) is folded outward to form an arc surface and fits against the surface of the gas cylinder (8) interface. A second sealing ring (5) is filled between the arc surface and the gas cylinder (8) interface. A test connecting ring (3) is fitted on the outside of the gas cylinder (8) interface. The test connecting ring (3) is connected to the test connector (1) by a locking assembly.

2. The end-face sealing test device according to claim 1, characterized in that, The test connecting ring (3) is a ring structure formed by combining a pair of semi-circular rings. A pair of test connecting plates (2) are provided at the joint of the pair of semi-circular rings. The test connecting plates (2) connect the pair of semi-circular rings by a pair of first bolts (6).

3. The end-face sealing test device according to claim 2, characterized in that, The locking assembly includes several mounting holes located at the edge of the test joint (1), in which a second bolt (7) is inserted. The test connecting ring (3) has a screw hole that matches the second bolt (7), and the second bolt (7) is screwed into the screw hole.

4. The end-face sealing test device according to claim 3, characterized in that, The number of the second bolts (7) is six, and they are located on both sides of the gas cylinder (8) interface.

5. The end-face sealing test device according to claim 4, characterized in that, The second bolt (7) on one side and the second bolt (7) on the other side are centrally symmetrically distributed.

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