Tool for disassembling piston of launching valve
By designing a tooling system for disassembling the launch valve piston, the quality issues of disassembling and reassembling the launch valve piston were resolved, achieving non-destructive disassembly and efficient repair.
Patent Information
- Application Number
- CN202422989109.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-05
AI Technical Summary
In the existing technology, it is difficult to guarantee the quality of disassembly and reassembly of the launch valve piston. Traditional methods are prone to damage to the piston surface, affecting the repair cycle and assembly quality.
A tooling for disassembling a launch valve piston, including a bracket, was designed. The bracket consists of a flat plate and a vertical edge. The piston can be disassembled and reassembled without damage by means of bolts and screws.
It enables non-destructive disassembly of the launch valve piston, ensuring the quality of disassembly and reassembly, and improving maintenance efficiency and overall repair quality.
Smart Images

Figure CN223493163U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a tooling, and more particularly to a tooling for disassembling a launch valve piston. Background Technology
[0002] The launch valve controls the flow of compressed air from the launch cylinder to the launch tube. During launch, it automatically and correctly controls the flow rate of compressed air from the launch cylinder into the launch tube according to different launch depths, implementing control according to a predetermined pattern to ensure that the internal trajectory of the decoy equipment meets the tactical and technical requirements. The decoy launch valve has a complex structure and requires extensive disassembly; it is a core component of the decoy launcher's air launch system. Located on the lower deck of compartment II on the port and starboard sides, it is in a confined space, making repair difficult. Leakage in the decoy launcher's launch valve will result in excessively low chamber pressure and insufficient velocity of the launch material exiting the tube, leading to a launch accident.
[0003] Currently, the number of tasks related to the repair of launching valve malfunctions is gradually increasing, and the problems are becoming more and more apparent. There are two key aspects to launching valve repair: the quality of disassembly and reassembly of the launching valve piston, and the quality of valve body repair during piston repair. The quality of launching valve piston disassembly significantly affects the launching valve's sealing performance. Traditional disassembly processes easily damage the surface of the launching valve piston, and repairing a piston with such surface damage will affect the repair cycle. Furthermore, the quality of the reassembly of the launching valve piston and valve body can easily cause quality problems. Summary of the Invention
[0004] The purpose of this utility model is to provide a tooling for disassembling a launch valve piston that is simple in structure, lightweight, high in strength, easy to carry, replaceable in various equipment repairs, has a wide range of applications, saves time and effort, and does not damage the piston of the launch valve being disassembled.
[0005] The tooling for disassembling the launch valve piston of this utility model includes a bracket, which consists of a central plate, vertical edges bent downward at both ends of the plate, and an edge bent outward at the lower end of the vertical edges. A nut is fixed to the center hole of the plate by welding, and a bolt is fitted to the nut. The lower end of the bolt is connected to a screw platform by a cylindrical pin. The screw platform has threads on the outside, and a screw is fitted in the hole on the edge.
[0006] This utility model discloses a tooling for disassembling a launch valve piston. In use, the upper components of the launch valve piston are removed, exposing threaded holes on the upper surface of the piston and the outer shell of the piston. The tooling is placed above the piston, with the screws matching the threaded holes on the outer shell of the piston. Tightening the screws secures the bracket, and the screw head screws into the threaded holes on the piston. Rotating the bolt causes the bolt and screw head to move the piston upwards, achieving the purpose of disassembling the piston. It has the advantages of simple structure, light weight, high strength, easy portability, interchangeable components for repairing various types of equipment, wide application scenarios, time and labor saving, and no damage to the disassembled launch valve piston. It ensures the quality of disassembly and reassembly, as well as the overall maintenance quality. Attached Figure Description
[0007] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.
[0008] Figure 2 yes Figure 1 The diagram shown is a top view. Detailed Implementation
[0009] like Figure 1 , 2 As shown: This utility model discloses a tooling for disassembling a launch valve piston, comprising a bracket. The bracket consists of a central plate 4, downward-bent vertical edges 1 at both ends of the plate 4, and an outward-bent edge 8 at the lower end of the vertical edges 1. The vertical edges 1 are perpendicular to the plate 4, and the vertical edges 1 are perpendicular to the edge 8. A nut 3 is fixed to the center hole of the plate 4 by welding, and a bolt 2 is fitted to the nut 3. The lower end of the bolt 2 is connected to a screw base 5 via a cylindrical pin 6, and the screw base 5 has threads 9 on its outer side. A screw 7 is fitted into a hole on the edge 8.
[0010] During use, the components on the upper part of the launch valve piston are removed, exposing threaded holes on the upper surface of the piston and the outer housing of the piston. The tool is placed above the piston, with screw 7 aligning with the threaded hole on the outer housing of the piston. Screw 7 to fix the bracket. The screw base 5 is screwed into the threaded hole on the piston via thread 9. Rotating bolt 2 causes bolt 2 and screw base 5 to move the piston upwards, achieving the purpose of disassembling the piston. It has the advantages of being lightweight, high-strength, portable, compatible with various equipment repairs, having replaceable components, wide applicability, saving time and effort, and causing no damage to the disassembled launch valve piston. It ensures the quality of disassembly and reassembly, as well as the overall maintenance quality.
Claims
1. A tooling for disassembling a launch valve piston, characterized in that: The bracket consists of a central plate (4), two vertical edges (1) bent downwards at both ends of the plate (4), and an edge (8) bent outwards at the lower end of the vertical edge (1). A nut (3) is fixed to the center hole of the plate (4) by welding. A bolt (2) is matched with the nut (3). The lower end of the bolt (2) is connected to a screw platform (5) by a cylindrical pin (6). The screw platform (5) has a thread (9) on the outside. A screw (7) is fitted in the hole on the edge (8).