Aircraft force-bearing covering cap capable of preventing neglected loading and quick-release lock

Abstract

The utility model discloses an airplane force-bearing covering cap capable of preventing neglected assembly and quick disassembly of a lock. Comprising a covering cap body (1), more than one quick-release lock (2) is arranged on the covering cap body (1), the quick-release locks (2) are connected in series through wires (3) to form a series branch, the series branch is connected with an indicator lamp (4) in parallel to form a monitoring circuit, and the monitoring circuit is connected with a power supply (5) after being connected with a resistor R1 in series. And when any quick-release lock (2) in the series branch is in an unlocking / loosening state, the series branch is in an open-circuit state. According to the utility model, neglected loading of the quick-release lock of the force-bearing covering cap can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of aircraft design technology, and in particular to an aircraft load-bearing cover with a quick-release lock to prevent leakage. Background Technology

[0002] When designing aircraft, considering the needs of later equipment installation, inspection, and maintenance, many access panels are designed. Commonly used access panels are divided into load-bearing and non-load-bearing panels. There are two common ways to connect load-bearing panels to the aircraft: one is using ordinary screws, and the other is using quick-release locks. The main advantage of quick-release locks is that locking is quick and the connecting screws do not need to be removed during disassembly, thus avoiding the problem of temporary screw storage and the possibility of lost screws. However, an access panel usually has many quick-release locks. This means that ground crew may only tighten some quick-release locks when installing the access panel, especially after equipment maintenance, where they may only tighten a few for quick removal next time. This can lead to missed quick-release locks, which are not easily noticed and pose a significant safety risk. Such situations have occurred in practice, and in severe cases, the access panel may tear and detach during flight, causing flight hazards. Utility Model Content

[0003] The purpose of this invention is to provide an aircraft load-bearing cover that prevents the omission of quick-release locks. This invention can effectively prevent the omission of quick-release locks on load-bearing cover installation.

[0004] The technical solution of this utility model is: an aircraft load-bearing cover with a quick-release lock to prevent leakage, including a cover body, on which one or more quick-release locks are provided. Each quick-release lock is connected in series with a wire to form a series branch. The series branch is connected in parallel with an indicator light to form a monitoring circuit. The monitoring circuit is connected in series with a resistor R1 and then connected to a power supply. When any quick-release lock in the series branch is in the unlocked / loosened state, the series branch is in the open circuit state.

[0005] In the aforementioned aircraft load-bearing cover with a leak-proof quick-release lock, the indicator light flashes when the power is on.

[0006] In the aforementioned aircraft load-bearing cover with a leak-proof quick-release lock, the indicator light is red.

[0007] In the aforementioned aircraft load-bearing cover with quick-release locks to prevent leakage, when all the quick-release locks are in the locked state, the series branch is connected to short-circuit the indicator light.

[0008] In the aforementioned aircraft load-bearing cover with a leak-proof quick-release lock, the indicator light is an LED light.

[0009] In the aforementioned aircraft load-bearing cover with a leak-proof quick-release lock, the power source is a DC power source.

[0010] The advantages of this utility model are: the aircraft load-bearing cover with a quick-release lock that prevents leakage is controlled by the flashing of a light bulb through the closed state of the quick-release lock circuit. When the light bulb flashes, it indicates that a quick-release lock is not locked or not tightened, which is very easy to detect. Therefore, this simple structural design can effectively prevent the quick-release lock of the load-bearing cover from being missing, reduce flight hazards, and requires minimal modification with virtually no additional weight. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the lid structure;

[0012] Figure 2 This is a schematic diagram of the equivalent circuit principle of the lid structure. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0014] Example 1. An aircraft load-bearing cover with a leak-proof quick-release lock, see [reference]. Figures 1-2 It includes a cover body 1, on which one or more quick-release locks 2 are provided. Each quick-release lock 2 is connected in series via a wire 3 to form a series branch. The series branch is connected in parallel with an indicator light 4 to form a monitoring circuit. The monitoring circuit is connected in series with a resistor R1 and then connected to a power supply 5. When any quick-release lock 2 in the series branch is in an unlocked / loosened state, the series branch is in an open circuit state.

[0015] When a quick-release lock is not locked, some springs and screws protrude from the surface of the cap, which is not easily noticed from a distance without careful observation, or if only a few are not locked, it is even more difficult to detect. To overcome this technical problem, this utility model designs a closed circuit on the load-bearing cap. A miniature flashing light bulb is set in the circuit as indicator light 4. The circuit is arranged inside the cap, and the bulb is placed on the surface of the cap, flush with the outer surface of the cap, so it does not protrude from the surface and does not affect the aerodynamic shape. All quick-release locks form a series branch and are connected in parallel with indicator light 4. When a quick-release lock is released, it is equivalent to the series branch being broken. At this time, indicator light 4 is in the closed state and flashes to indicate that a quick-release lock is not locked. This makes it easy to find that a quick-release lock is not locked or not locked, thereby achieving the purpose of preventing missing installation. When all quick-release locks are locked, the series branch is connected, and indicator light 4 is short-circuited and goes out.

Claims

1. An aircraft load-bearing cover with a leak-proof quick-release lock, characterized in that, Includes a cover body (1), on which one or more quick-release locks (2) are provided. Each quick-release lock (2) is connected in series via a wire (3) to form a series branch. The series branch is connected in parallel with an indicator light (4) to form a monitoring circuit. The monitoring circuit is connected in series with a resistor R1 and then connected to a power supply (5). When any quick-release lock (2) in the series branch is in the unlocked / loose state, the series branch is in the open circuit state.

2. The aircraft load-bearing cover with a leak-proof quick-release lock according to claim 1, characterized in that, When the power is turned on, the indicator light (4) is in a flashing state.

3. The aircraft load-bearing cover with a leak-proof quick-release lock according to claim 1, characterized in that, The indicator light (4) is red.

4. The aircraft load-bearing cover with a leak-proof quick-release lock according to claim 1, characterized in that, When all the quick-release locks (2) are in the locked state, the series branch is connected to short-circuit the indicator light (4).

5. The aircraft load-bearing cover with a leak-proof quick-release lock according to claim 1, characterized in that, The indicator light (4) is an LED light.

6. The aircraft load-bearing cover with a leak-proof quick-release lock according to claim 1, characterized in that, The power supply (5) is a DC power supply.

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