Throwing recorder with waterproof sealing structure
By designing a drop recorder with a waterproof and sealed structure, and using components such as a basin-shaped mounting bracket, a retractable pin, and a U-shaped sealing gasket, the problem of traditional recorders easily sinking in flight accidents has been solved. This enables long-term floating on water and rapid positioning, thereby improving search and rescue efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional flight recorders are prone to sinking in flight accidents, which increases the difficulty of searching and makes it impossible to float on water for a long time and locate quickly.
A drop recorder with a waterproof sealing structure was designed. It adopts components such as a basin-shaped mounting bracket, a telescopic pin, a U-shaped sealing gasket, and special screws to achieve multiple seals, ensuring that the recorder can float underwater for a long time and work reliably.
The recorder's waterproof sealing capability has been improved, ensuring it can float underwater for extended periods, reducing search difficulty, enhancing shock resistance, and improving reliability and space utilization.
Smart Images

Figure CN224075767U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of avionics equipment technology, and in particular relates to a drop recorder with a waterproof sealing structure. Background Technology
[0002] Traditionally, the "black box" is stored with the aircraft when it sinks, making it unusable for flight accident investigations. Therefore, a "black box" that can be separated from the aircraft, has the ability to float on water for extended periods, and is equipped with BeiDou positioning capabilities, enabling rapid location and search of the recorder at sea, is of great significance for pilot search and rescue and flight accident investigations.
[0003] Based on the above needs and current situation, research was conducted on a recorder with a waterproof seal to ensure that the recorder floats on the water surface for a long time, reducing the difficulty of searching. Utility Model Content
[0004] The purpose of this invention is to provide a drop recorder with a waterproof sealing structure to solve the above problems.
[0005] To solve this technical problem, the technical solution of this utility model is as follows:
[0006] A drop recorder with a waterproof sealing structure, the drop recorder includes: a mounting frame 1, a drop control box component 2, a separation mechanism 3, a fixing pin component 4, a recorder housing component 5, a cover plate component 6, a sealing gasket 7, a special screw 10, and a water sensor component 11;
[0007] The mounting frame 1 is the connecting intermediate component between the main body and the launch recorder;
[0008] The front end of the bottom of the mounting frame 1 is fixed with the throwing control box component 2, the rear end of the bottom of the mounting frame 1 is fixed with the water sensor component 11, the front end of the mounting frame 1 is fixed with the separation mechanism 3, and the rear end of the mounting frame 1 is fixed with the pin component 4.
[0009] The coplanar areas of the recorder housing component 5 and the cover plate component 6 and the mounting bracket 1 have the same configuration;
[0010] The sealing gasket 7 has a U-shaped structure and is disposed between the housing component 5 and the cover plate component 6;
[0011] The special screw 10 has a sealing ring, which provides multiple waterproof seals when fastening the recorder.
[0012] Furthermore,
[0013] The mounting bracket 1 adopts a basin-shaped structure with a round front end and a square rear end. The flange of the mounting bracket 1 and the part connecting to the fuselage adopt a conformal design based on the outer surface of the aircraft.
[0014] Furthermore,
[0015] The separation mechanism 3 is a structural component that connects the mounting bracket 1 and the recorder housing component 5.
[0016] Furthermore,
[0017] The fixed pin component 4 is a retractable fixed pin, which serves as a structural component connecting the mounting bracket 1 and the recorder housing component 5.
[0018] Furthermore,
[0019] The recorder housing component 5 and the cover plate component 6 are equipped with functional modules 9, and their structural gaps are filled with filler 8.
[0020] Furthermore,
[0021] The filler 8 is a lightweight, cushioning composite material used to fix the functional module 9.
[0022] The beneficial effects of this utility model are:
[0023] (1) According to the installation method, a new configuration with a basin-shaped structure, a round front end and a square rear end is adopted. The front end has a semi-circular structure and a fixed separation mechanism, which saves space and avoids stress concentration while enhancing impact resistance. The rear end has a square structure and a fixed pin component.
[0024] (2) The recorder cover plate component is an inner and outer enclosing housing component with a "U" shaped sealing gasket installed in the middle. It is connected by special screws and through multiple sealing, the waterproof sealing capability is greatly increased.
[0025] (3) The overall structure is compact and has high reliability for long-term use. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the composition structure of the throw-type recorder of this utility model;
[0027] Figure 2 This is a detailed structural diagram of the recorder of this utility model;
[0028] Figure 3 This is a cross-sectional view of the recorder flange sealing waterproof structure of this utility model;
[0029] Among them, 1-mounting bracket, 2-discharge control box component, 3-separation mechanism, 4-fixed pin component, 5-recorder housing component, 6-cover plate component, 7-sealing gasket, 8-filler, 9-functional module, 10-special screw, 11-water sensor component. Detailed Implementation
[0030] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings.
[0031] This utility model provides a structural composition of a drop recorder with a waterproof sealing structure:
[0032] Please see Figure 1 and Figure 2 The present invention provides a novel throwable recorder and waterproof sealing structure, comprising: a mounting bracket 1, a throwable control box component 2, a separation mechanism 3, a fixed pin component 4, a recorder housing component 5, a cover plate component 6, a sealing gasket 7, a filler 8, a functional module 9, a special screw 10, and a water sensor component 11.
[0033] The mounting bracket 1, as an intermediate component connecting the aircraft body and the jettison recorder, adopts a basin-shaped structure with a circular front end and a square rear end. The flange of the mounting bracket is connected to the aircraft body according to the outer surface of the aircraft and adopts a conformal configuration design method. The bottom end is fixed to the jettison control box component 2, the front end is fixed to the separation mechanism 3, and the rear end is fixed to the pin component 4.
[0034] The launching control box 2 is fixed to the bottom of the mounting frame 1 and is used to interpret the launching separation signal and issue a launching separation command.
[0035] The separation mechanism 3 is fixed to the front end of the mounting frame 1, and performs both the throwing and separation function and serves as a structural component connecting the mounting frame and the recorder;
[0036] The pin component 4 is fixed to the rear end of the mounting frame 1 and is a retractable pin, serving as a structural component connecting the mounting frame and the recorder;
[0037] The recorder housing component 5 and cover plate component 6 are designed with conformal configuration method in the coplanar area with the mounting bracket 1. As the main load-bearing structural components of the recorder, they are made of resin-based composite material and cured at high temperature. Various functional modules 9 are installed inside. The structural gaps are filled by internal filler 8. A fastening hole is set every 35mm-45mm around the flange of the housing component 5. The assembly of the housing component 5 and the cover plate component 6 is completed by special screws 10.
[0038] The sealing gasket 7 has a "U" shaped structure and is located between the housing component 5 and the cover plate component 6 to provide a sealing function;
[0039] The filler 8 is a lightweight, cushioning composite material, mainly used to fix the internal functional modules of the recorder and fill the remaining gaps, protecting the functional modules through its energy absorption properties.
[0040] The aforementioned functional module 9 is used to realize functions such as data recording, positioning, and power supply;
[0041] The special screw 10 has a sealing ring, which provides multiple waterproof seals when fastening the recorder.
[0042] The water sensor component 11 can meet the requirement of not being triggered by rain. After entering the water, it outputs a release signal, and the separation mechanism separates the release recorder from the aircraft.
[0043] The working principle of a drop recorder with a waterproof sealing structure provided in this embodiment of the utility model is as follows:
[0044] Please see Figure 3 The sealing and waterproofing design is described in detail. The cover plate component 6 encloses the flange of the shell component 5. The sealing gasket 7 has a "U" shaped structure and is located between the shell component 5 and the cover plate component 6. When the cover plate component 6 is assembled with the shell component 5 at its outermost position, it compresses the sealing gasket 7 to complete the first seal. The cover plate component 6 compresses the sealing gasket 7 at the front flange of the shell component 5 to complete the second seal. The special screw 10 has a small groove at its end, which is fitted with a matching sealing ring. When the cover plate component 6 is tightened with the shell component 5, it completes the third seal. There is a ring of ribs on the inner side of the cover plate component 6, which leaves a gap of about 1 mm with the inner cavity of the shell component 5. When assembled, it compresses the sealing gasket 7 on the inner side to complete the fourth seal. Through multiple seals, the waterproof sealing capability is greatly increased.
[0045] This utility model provides a throwable recorder with a waterproof sealing structure, comprising: a mounting frame, a throwable control box component, a separation mechanism, a fixing pin component, a water sensor component, a recorder housing component, a cover plate component, a sealing gasket, filler material, functional modules, and special screws, etc.; the mounting frame serves as an intermediate component connecting the aircraft body and the throwable recorder; the throwable control box is fixed at the bottom of the mounting frame and is used to interpret the throwable separation signal and issue a throwable separation command; the separation mechanism performs both the throwable separation function and serves as a structural component connecting the mounting frame and the recorder; the fixing pin component, as a structural component connecting the mounting frame and the recorder, is fixed at the rear end of the mounting frame; the water sensor component can output a throwable signal at the critical moment when the aircraft crashes into the water, and the separation mechanism separates the throwable recorder from the aircraft; the recorder housing component and the cover plate component are the main structural components of the recorder, and various functional modules are installed inside, with their structural gaps filled by internal filler material; the sealing gasket is placed between the housing component and the cover plate component to provide a sealing function.
[0046] This utility model provides a throwable recorder with a waterproof sealing structure. Based on the installation method, it adopts a novel configuration with a circular front end and a square rear end. The semi-circular front end features a fixed separation mechanism, saving space while avoiding stress concentration and enhancing impact resistance. The square rear end features a fixed pin component. The recorder cover component encloses the housing component internally and externally, with a U-shaped sealing gasket installed in the middle, connected by special screws. Through multiple sealing processes, the waterproof sealing capability is greatly increased. The overall design features a compact structure and high reliability for long-term use.
Claims
1. A drop recorder with a waterproof sealing structure, characterized in that, The dropping recorder includes: a mounting bracket (1), a dropping control box component (2), a separation mechanism (3), a pin component (4), a recorder housing component (5), a cover plate component (6), a sealing gasket (7), a special screw (10), and a water sensor component (11); The mounting bracket (1) is the connecting intermediate component between the body and the launch recorder; The front end of the bottom of the mounting frame (1) is fixed with a throwing control box component (2), the rear end of the bottom of the mounting frame (1) is fixed with a water sensor component (11), the front end of the mounting frame (1) is fixed with a separation mechanism (3), and the rear end of the mounting frame (1) is fixed with a pin component (4). The coplanar areas of the recorder housing component (5) and the cover plate component (6) and the mounting bracket (1) have the same configuration; The sealing gasket (7) has a U-shaped structure and is located between the housing component (5) and the cover plate component (6); The special screw (10) has a sealing ring, which provides multiple waterproof seals when the recorder is fastened.
2. A drop recorder with a waterproof sealing structure according to claim 1, characterized in that, The mounting bracket (1) adopts a basin-shaped structure with a round front end and a square rear end. The flange of the mounting bracket (1) and the part connected to the fuselage adopt a conformal design based on the outer surface of the aircraft.
3. A drop recorder with a waterproof sealing structure according to claim 2, characterized in that, The separation mechanism (3) is a structural component that connects the mounting bracket (1) and the recorder housing component (5).
4. A drop recorder with a waterproof sealing structure according to claim 3, characterized in that, The pin component (4) is a retractable pin, which serves as a structural component connecting the mounting bracket (1) and the recorder housing component (5).
5. A drop recorder with a waterproof sealing structure according to claim 4, characterized in that, The recorder housing component (5) and cover plate component (6) are equipped with functional modules (9), and their structural gaps are filled with filler (8).
6. A drop recorder with a waterproof sealing structure according to claim 4, characterized in that, The filler (8) is a lightweight, cushioning composite material used to fix the functional module (9).