Auxiliary tool for installing explosion cap of airplane fire extinguishing bottle
By designing an auxiliary tooling for installing the explosion cap of an aircraft fire extinguisher bottle, and using clamping parts and angle plates to ensure accurate installation angles, the problems of large measurement errors and low efficiency in existing technologies are solved, and an efficient and safe installation process is achieved.
Patent Information
- Application Number
- CN202422882064.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing technology cannot accurately measure the joint angle of the aircraft fire extinguisher bottle explosion cap, which makes installation difficult, easily damages the adapter and explosion cap, poses leakage risks and safety hazards, and manual measurement is inefficient.
Design an auxiliary tooling for installing the explosive cap of an aircraft fire extinguisher bottle, including a clamping part, a connecting part, and an angle plate. The clamping part is used to snap into the explosive cap nozzle parallel to it, and the angle plate is aligned with the center line of the nozzle to ensure accurate installation angle, replacing manual point measurement.
It improves the accuracy of fire extinguisher bottle connector installation, prevents damage and leakage, reduces manpower and material consumption, reduces rework, and improves production efficiency and safety.
Smart Images

Figure CN223493130U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of aviation equipment maintenance technology and relates to an auxiliary tooling for installing the explosion cap of an aircraft fire extinguisher bottle. Background Technology
[0002] During the repair of a certain type of fire extinguisher, the unique shape of the nozzle on the explosion cap made it impossible to accurately measure the joint angle when installing the explosion cap. The only method was to measure it visually using a universal protractor, which had to be placed vertically and parallel to the center line of the nozzle before tightening the nut with a torque wrench. This manual method of measuring the joint angle resulted in significant errors and made it easy to force adjustments to meet installation requirements, which could easily lead to damage, loosening, and leakage of the adapter and explosion cap, posing safety hazards and quality issues.
[0003] The shortcomings of existing technology are:
[0004] 1. The inability to accurately measure the joint angle can easily lead to installation difficulties, resulting in damage to the adapter and explosion cap, loosening and leakage of extinguishing liquid, and increasing the risk of quality failures and safety accidents.
[0005] 2. Manual point-to-point measurement results in repeated installation of the explosion cap, which is prone to errors and wastes a lot of time. Utility Model Content
[0006] To ensure efficient and high-quality installation of the fire extinguisher bottle connector angle, an auxiliary tooling for installing the explosion cap of an aircraft fire extinguisher bottle has been developed. This tooling reduces troubleshooting time, improves work efficiency, guarantees repair quality, and eliminates safety hazards.
[0007] The specific technical solution of this utility model is as follows:
[0008] An auxiliary tooling for installing the explosion cap of an aircraft fire extinguisher bottle, the auxiliary tooling comprising a clamping part 1, a connecting part 2, and an angle plate 3.
[0009] The clamping part 1 is a plate-shaped structure with a horizontally arranged boss on the lower part of one side surface. The end face of the boss is arc-shaped and is used to engage the adapter and the screw plug installed on its upper port. The engagement position is located above the port on one side of the adapter, and the arc-shaped end face fits against the connection. After engagement, the plate-shaped structure of the clamping part 1 fits against the outer surface of the adapter, making the plate-shaped structure parallel to the center line of the explosion cap nozzle, so as to ensure the installation angle of the entire auxiliary tooling.
[0010] The angle plate 3 is fixedly installed on the other side surface of the clamping part 1 through the connecting part 2, and the angle plate 3 is parallel to the plate structure of the clamping part 1. The length of the connecting part 2 is set according to the distance between the nozzle on the explosion cap and the adapter, so that the angle plate 3 is flush with the center line of the nozzle. The lower end surface of the angle plate 3 is a slope, and its tilt angle is set according to the standard installation angle of the nozzle. When installing the explosion cap, the nozzle is made to fit with the lower end surface of the angle plate 3 to determine that the nozzle has reached the standard installation angle.
[0011] The auxiliary tooling consists of two sets, which are used to install the explosion caps on both sides. The two sets of auxiliary tooling have basically the same structure, the difference being that the tilt angle of the lower end face of the angle piece 3 is different. They are set according to the standard installation angle of the nozzle of the corresponding explosion cap. The two sets of auxiliary tooling can be used individually to install two explosion caps, or they can be used simultaneously to install two explosion caps at the same time.
[0012] The beneficial effects of this utility model are as follows:
[0013] (1) It can replace the traditional manual point-to-point installation, improve the accuracy of fire extinguisher bottle connector installation, prevent connector damage and loosening that could leak fire extinguishing liquid, and save manpower and resources.
[0014] Compared with existing operating methods, this method solves the problem of not being able to accurately measure the angle of the explosion cap connector, eliminates the need for repeated measurement and tightening, reduces the technical skill requirements for operators, and can be operated after simple training, effectively solving the problem of accurate installation of fire extinguisher bottle connector angles.
[0015] (2) The tooling has good stability, reducing the need for repeated troubleshooting and rework due to problems with the installation of fire extinguisher bottle connectors. The improved accuracy of fire extinguisher bottle connector installation shortens the entire production cycle and increases production efficiency.
[0016] (3) The improved accuracy also brings about improved safety, which greatly avoids or reduces major quality and safety accidents caused by joint angle problems. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;
[0018] Figure 2 This is a top view of the present invention;
[0019] Figure 3 This is a side view of the present invention.
[0020] In the diagram: 1. Clamping part; 2. Connecting part; 3. Angle plate. Detailed Implementation
[0021] The technical solution of this utility model will now be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments that are improved or adjusted by those skilled in the art based on the embodiments of this utility model are within the protection scope of this utility model.
[0022] This embodiment provides an auxiliary tooling for installing the explosion cap of an aircraft fire extinguisher bottle. First, the product's structural characteristics are analyzed. Based on the positional relationship between the adapter surface and the nozzle on the explosion cap, the approximate shape of the auxiliary tooling is initially designed. Angle plate 3 is used to contact the nozzle to ensure the angle. The tooling has the following characteristics: one end of the auxiliary tooling is completely flush with the adapter plane; the angle plate 3 is used to assist in the installation of the explosion cap by contacting the nozzle parallel to the surface; it allows for simultaneous adjustment and assembly of the explosion cap from both sides; and it provides fast and accurate angle measurement. This eliminates the need for repeated installation and measurement of the explosion cap angle during product assembly. The design of the angle-assisting installation tooling fully considers the product's shape, ensuring the reliability and quality of the entire repair process. Specifically:
[0023] The auxiliary tooling includes a clamping part 1, a connecting part 2, and an angle plate 3, such as Figures 1 to 3 As shown; the clamping part 1 is a plate-shaped structure with a horizontally arranged boss on the lower part of one side surface. The end face of the boss is arc-shaped and is used to engage the adapter and the screw plug installed on its upper port. The engagement position is located above the port on one side of the adapter, and the arc-shaped end face fits against the connection. After engagement, the plate-shaped structure of the clamping part 1 fits against the outer surface of the adapter, making the plate-shaped structure parallel to the center line of the nozzle on the explosion cap, so as to ensure the installation angle of the entire auxiliary tooling.
[0024] The angle plate 3 is fixedly installed on the other side surface of the clamping part 1 through the connecting part 2, and the angle plate 3 is parallel to the plate structure of the clamping part 1. The length of the connecting part 2 is set according to the distance between the nozzle on the explosion cap and the adapter, so that the angle plate 3 is flush with the center line of the nozzle. The angle plate 3 is generally in the shape of a right trapezoid, and its lower end face is a slope. Its tilt angle is set according to the standard installation angle of the nozzle. When installing the explosion cap, the nozzle is made to fit with the lower end face of the angle plate 3 to determine that the nozzle has reached the standard installation angle.
[0025] The auxiliary tooling consists of two sets, used to install the explosion caps on both sides. The two sets of auxiliary tooling have basically the same structure, the difference being the tilt angle of the lower end face of the angle piece 3. They are set according to the standard installation angle of the nozzle of the corresponding explosion cap. The obtuse angle of the angle piece 3 on one side is (85°±30′), and the obtuse angle of the angle piece 3 on the other side is (87°±30′). The two sets of auxiliary tooling can be used individually to install two explosion caps, or they can be used simultaneously to install two explosion caps at the same time.
[0026] The above-described embodiments are merely illustrative of the implementation of this utility model, but should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. An auxiliary tooling for installing the explosion cap on an aircraft fire extinguisher bottle, characterized in that, The auxiliary tooling includes a clamping part (1), a connecting part (2), and an angle plate (3); The clamping part (1) is a plate-shaped structure with a horizontally arranged boss on the lower part of one side surface. The end face of the boss is arc-shaped and is used to snap into the connection between the adapter and the screw plug installed on its upper port. The snapping position is located above the port on one side of the adapter, and the arc-shaped end face fits into the connection. After snapping in, the plate-shaped structure of the clamping part (1) fits into the outer surface of the adapter, so that the plate-shaped structure is parallel to the center line of the explosion cap nozzle. The angle plate (3) is fixedly installed on the other side surface of the clamping part (1) through the connecting part (2), and the angle plate (3) is parallel to the plate structure of the clamping part (1). The length of the connecting part (2) is set according to the distance between the nozzle on the explosion cap and the adapter, so that the angle plate (3) is flush with the center line of the nozzle. The lower end surface of the angle plate (3) is a slope, and its tilt angle is set according to the standard installation angle of the nozzle. When installing the explosion cap, the nozzle is made to fit with the lower end surface of the angle plate (3) to determine that the nozzle has reached the standard installation angle.
2. The auxiliary tooling for installing the explosion cap of an aircraft fire extinguisher bottle according to claim 1, characterized in that, The auxiliary tooling consists of two sets, which are used to install the explosion caps on both sides respectively. They can be used individually or simultaneously.