Tool for quickly disassembling and assembling blanking cap in hydrostatic test

By designing a quick-release and reassembly plug tool for water pressure testing, the problem of difficult plug installation and removal was solved, realizing a simple, safe and reliable water pressure testing process, and improving testing efficiency and safety.

CN121589752APending Publication Date: 2026-03-03内蒙航天动力机械测试所
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Patent Information

Application Number
CN202511822160.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The installation and removal of the plug in the existing hydrostatic test are difficult, resulting in a high risk of injury to operators and a long test time.

Method used

Design a quick-release and reassembly plug tool for hydrostatic testing, including a plug, keyway block, screw and handle, which is fixed by bolts and installed with nuts, simplifying the operation process.

Benefits of technology

It enables quick installation and removal of the plug, reduces operational difficulty, improves test safety and efficiency, and reduces test time and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a tool for quickly disassembling and assembling a blanking cap in a hydrostatic test, which comprises the blanking cap 4, key slot clamping blocks 3, a screw rod 2 and a handle 1, the key slot clamping blocks 3 are fixedly arranged at preset positions on the blanking cap 4 through bolts, and each blanking cap is provided with six key slot clamping blocks to play a role in limiting and fixing the blanking cap; the screw rods 2 are mounted at the positions of specified threaded holes of the blanking cap 4, and the number of the screw rods 2 is four; the handles 1 are installed on the screw 2 and fixed through nuts, the two handles 1 are installed in total, the screw is fixed to the blanking cap and used for installing the handles, and the blanking cap is convenient to install and dismantle. The device is simple in structure and easy to disassemble and assemble, parts are convenient to maintain and replace, only the front and rear blanking caps, the clamping blocks, the screw and the handle need to be designed and machined, the test cost is greatly reduced, and the test expense is saved; according to the invention, the hydrostatic test time of the single engine shell is greatly shortened, and the test efficiency is remarkably improved.
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Description

Technical Field

[0001] This invention relates to the field of engine water pressure testing technology, specifically to a quick-release and disassembly plugging tool for water pressure testing. Background Technology

[0002] For certain types of housings, hydrostatic pressure resistance testing requires the installation of plugs to form a sealed whole for hydrostatic pressure testing. In most cases, two plugs, one at the front and one at the back, are required. The installation and removal of commonly used test plugs are relatively difficult. In the past, manual operation could easily injure operators or scratch the test housing, and the test time was relatively long.

[0003] The purpose of the hydrostatic test is to comprehensively examine the strength (pressure resistance test) and tightness (air tightness test) of the pressure-bearing components of the pressure vessel. It is a comprehensive inspection of the material selection, design calculation, structure and manufacturing quality of the pressure vessel shell.

[0004] The existing method of fixing the plug to the test shell in the hydrostatic test is by ring key. The plug is time-consuming and laborious to disassemble and assemble. Manual operation by test personnel is prone to errors and may occasionally cause some damage to the operator and the test shell. Summary of the Invention

[0005] Based on the above-mentioned technical problems, this invention proposes a quick-release and reassembly plug tool for hydrostatic testing, which solves the problem of difficult installation and disassembly of the plug during hydrostatic testing of a certain type of pressure vessel, improves test safety and stability, and increases test efficiency. At the same time, the plug has the advantages of simple operation and ease of use.

[0006] To solve the above-mentioned technical problems, one of the objectives of this invention is to provide a quick-release and disassembly plug tooling for hydrostatic testing, including a plug 4, a keyway block 3, a screw 2, and a handle 1. The plug is the foundation of this structure. The keyway block 3 is fixedly installed on the plug 4 at a predetermined position by bolts. The screw 2 is installed at a designated threaded hole position on the plug 4. The handle 1 is installed on the screw 2 and fixed by a nut.

[0007] Furthermore, the disassembly and assembly plug is equipped with 6 keyway blocks, which are fixed in place by bolts. The keyway blocks are used to limit and fix the installation position of the plug in the test housing.

[0008] Furthermore, there are four screws 2 in total. The screws are fixed to the plug to install a handle, which facilitates the installation and removal of the plug.

[0009] Furthermore, there are two handles 1, and the function of the screw and handle is to grip and use when installing and removing the plug.

[0010] The above-described one or more technical solutions of the present invention have at least one or more of the following technical effects: The present invention has a simple structure, is easy to disassemble and assemble, and is convenient to repair and replace parts. It only requires the design and processing of simple parts such as front and rear plugs, locking blocks, screws, and handles, which greatly reduces the testing cost and saves testing expenses. The plug removal tool of this invention is simple and easy to operate. Procedures that previously required multiple people can now be performed by a maximum of one or two people.

[0011] This invention significantly shortens the hydrostatic test time for a single engine casing and substantially improves test efficiency. Attached Figure Description

[0012] Figure 1 : Schematic diagram of the quick-release and disassembly plugging device of the present invention; Figure 2 : Assembly diagram of the quick-release and disassembly plugging device of the present invention; Wherein: 1-handle, 2-screw, 3-keyway block, 4-plug, 5-test water pressure test shell. Detailed Implementation

[0013] This invention discloses a quick-release and removable plug fixture for hydrostatic testing, comprising a plug, a keyway locking block, a screw, and a handle. The plug forms the structural foundation, and the keyway locking block is used to restrict and fix the plug's installation position within the test housing. The screw and handle are used for gripping during plug installation and removal. This invention reduces the operational difficulty for testing personnel, saves testing time, and facilitates more convenient and efficient testing. Furthermore, this plug fixture offers advantages such as convenient installation and operation, safety and reliability, and ease of removal.

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments obtained. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0015] This invention designs a quick-release and disassembly plug fixture for hydrostatic testing, comprising a plug 4, a keyway block 3, a screw 2, and a handle 1. The keyway block 3 is fixedly installed on the plug 4 at a predetermined position by bolts, and 6 keyway blocks are installed on each plug.

[0016] The screws 2 are installed at the designated threaded hole positions of the plug 4, and there are a total of 4 screws 2.

[0017] The handle 1 is mounted on the screw 2 and fixed by a nut. There are two handles 1 in total.

[0018] A quick-release and removable plug tool for hydrostatic testing, wherein after the plug is installed in place, it is fitted with 6 keyway blocks and fixed in place by 12 bolts, which serve to restrict and fix the plug; the screw is fixed to the plug to install a handle, which facilitates the installation and removal of the plug.

[0019] After on-site assembly and debugging, the strength, stability, and safety standards of this invention are met, as well as the requirements for use.

[0020] After six months of use, the newly designed quick-release cap for water pressure testing of two different housing models was successfully applied. Its convenient operation, rapid and labor-saving installation significantly improved testing efficiency and ensured a certain level of safety for testing personnel. This validated the rationality and feasibility of the invention.

[0021] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations to the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A quick-release and disassembly plugging tool for hydrostatic testing, characterized in that: The structure includes a plug (4), a keyway block (3), a screw (2), and a handle (1). The plug is the foundation of this structure. The keyway block (3) is fixedly installed on the plug (4) at a predetermined position by bolts. The screw (2) is installed on the plug (4) at a specified threaded hole position. The handle (1) is installed on the screw (2) and fixed by a nut.

2. The quick-release and disassembly plugging fixture for water pressure testing according to claim 1, characterized in that: The disassembly and assembly plug is equipped with 6 keyway locking blocks, which are fixed in place by bolts. The keyway locking blocks are used to limit and fix the installation position of the plug in the test housing.

3. The quick-release and disassembly plugging fixture for water pressure testing according to claim 1, characterized in that: There are four screws (2). The screws are fixed to the plug to install handles, which facilitates the installation and removal of the plug.

4. The quick-release and disassembly plugging fixture for water pressure testing according to claim 1, characterized in that: The handle (1) is provided in two parts. The function of the screw and the handle is to grip and use when installing and removing the plug.