AOA sensor protection device for aircraft maintenance

Abstract

The utility model relates to the technical field of AOA sensor protection devices, and discloses an AOA sensor protection device for aircraft maintenance, which comprises an AOA sensor, the top of the AOA sensor is in threaded connection with a bolt, the top of the AOA sensor is fixedly connected with a connecting plate through the bolt, the top of the connecting plate is provided with a fixing and limiting mechanism, and the fixing and limiting mechanism is fixedly connected with the AOA sensor. According to the fixing and limiting mechanism, a protection cover arranged outside the fixing and limiting mechanism completely covers the AOA sensor, the AOA sensor is protected against damage, when the protection cover is knocked or flapped, a flexible rubber sealing gasket in a sealing mechanism arranged inside the protection cover deforms, the flexible rubber sealing gasket is collided and compressed, and the AOA sensor is prevented from being damaged. And then the positioning block and the trapezoidal block are synchronously driven to slide and move in the groove corresponding to the connecting plate, so that a buffering effect is achieved before collision, the AOA sensor can be protected to the greatest extent, external impact and vibration are further absorbed, mechanical stress borne by the sensor is reduced, and the service life of the sensor is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of AOA sensor protection devices, specifically an AOA sensor protection device for aircraft maintenance. Background Technology

[0002] During aircraft maintenance, AOA sensors may be damaged by various external factors, such as severe weather conditions, mechanical shock, and chemical corrosion. These factors not only affect the accuracy and reliability of the sensors but may also pose a potential threat to flight safety. Therefore, designing an effective AOA sensor protection device aims to protect the sensors from external damage, ensure their long-term stable operation, and improve flight safety.

[0003] In existing technologies, traditional AOA sensor protection methods typically rely on tape and plastic film. While these materials effectively prevent dust and moisture from entering, the plastic film lacks structural rigidity and can only protect against contamination. Consequently, it cannot effectively protect the component's structural integrity. This is especially true during aircraft paint stripping and high-pressure water jet washing, which can easily cause accidental damage to the AOA blades, rendering the protective device ineffective. Therefore, there is a need to improve the AOA sensor protection device for aircraft maintenance. Utility Model Content

[0004] The purpose of this invention is to provide an AOA sensor protection device for aircraft maintenance, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an AOA sensor protection device for aircraft maintenance, including an AOA sensor, a bolt threadedly connected to the top of the AOA sensor, a connecting plate fixedly connected to the top of the AOA sensor by the bolt, a fixing limiting mechanism provided at the top of the connecting plate, and a sealing mechanism provided at the bottom of the fixing limiting mechanism.

[0006] The fixed limiting mechanism includes a fixing component and a limiting component, wherein the limiting component is disposed on the back of the fixing component;

[0007] The fixing component includes a trapezoidal block inserted into the connecting plate. A protective cover is fixedly connected to the top of the trapezoidal block, and a positioning block is fixedly connected to the bottom of the protective cover. An inclined block is slidably connected inside the connecting plate. A connecting rod is fixedly connected to the front of the inclined block, and a pull rod is fixedly connected to the front of the connecting rod. A spring is fixedly connected between the inclined block and the connecting plate to facilitate quick connection between the protective cover and the AOA sensor, thereby protecting the exterior of the AOA sensor.

[0008] Preferably, a through groove is provided at the corresponding position of the pull rod and the connecting plate, and the pull rod is slidably connected in the through groove, which facilitates quick connection of the protective cover connecting plate.

[0009] Preferably, the bottom of the inclined block abuts against the top of the trapezoidal block, and the positioning block has a groove at the corresponding position of the connecting plate. The positioning block is slidably connected in the groove, and the insertion depth of the positioning block is less than the groove depth. The trapezoidal block has a groove at the corresponding position of the connecting plate, and the insertion depth of the trapezoidal block is less than the groove depth. This facilitates quick fixation of the trapezoidal block, allowing the trapezoidal block and the positioning block to slide in the groove corresponding to the connecting plate.

[0010] Preferably, the limiting component includes a sliding column, which is slidably connected inside the connecting plate. A limiting block is fixedly connected to the front of the sliding column, and a spring is fixedly connected between the limiting block and the connecting plate to improve the locking effect of the trapezoidal block in the corresponding groove of the connecting plate.

[0011] Preferably, the bottom of the limiting block abuts against the top of the trapezoidal block, and a hole is provided at the corresponding position of the sliding column and the connecting plate, and the sliding column is slidably connected in the hole, which facilitates the left and right sliding of the limiting block.

[0012] Preferably, the sealing mechanism includes a fixed sleeve, which is fixedly connected to the bottom of the protective cover. A sealing ring is fixedly connected to the bottom of the fixed sleeve, a connecting sleeve is fixedly connected to the bottom of the sealing ring, and a flexible rubber sealing gasket is fixedly connected to the bottom of the connecting sleeve, so as to prevent moisture, dust and other contaminants from entering the sensor.

[0013] Preferably, a groove is provided at the position corresponding to the connecting plate of the flexible rubber sealing gasket, and the flexible rubber sealing gasket is inserted into the groove to improve the sealing effect.

[0014] Compared with the prior art, this utility model provides an AOA sensor protection device for aircraft maintenance, which has the following beneficial effects:

[0015] The AOA sensor protection device used for aircraft maintenance, through a fixed limiting mechanism, has an external protective cover that completely encloses the AOA sensor, protecting it from damage. When the protective cover is struck or hit, the flexible rubber sealing gasket in the sealing mechanism inside the cover deforms and is compressed by the impact. This, in turn, drives the trapezoidal positioning block to slide within the corresponding groove of the connected plate, thus buffering the impact before it occurs. This maximizes the protection of the AOA sensor, further absorbs external impacts and vibrations, reduces the mechanical stress on the sensor, and extends its service life.

[0016] The AOA sensor protection device used for aircraft maintenance has a sealing mechanism in place. During the connection process, the flexible rubber sealing gasket is inserted into the corresponding groove of the connecting plate. Under the compression elasticity of the sealing ring, the flexible rubber sealing gasket under the connecting sleeve is always in contact with the top of the connecting plate, ensuring that the connection between the connecting plate and the flexible rubber sealing gasket maintains a sealing effect, thereby preventing moisture, dust and other contaminants from entering the sensor. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the front unfolded structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the external structure of the fixed limiting mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the external structure of the fixing component of this utility model on the right side;

[0022] Figure 5 This is a schematic diagram of the right side appearance of the limiting component of this utility model;

[0023] Figure 6 This is a schematic diagram of the unfolded structure of the sealing mechanism of this utility model.

[0024] In the diagram: 1. AOA sensor; 2. Connecting plate; 3. Fixed limiting mechanism; 4. Sealing mechanism; 5. Bolt; 31. Fixing component; 32. Limiting component; 311. Trapezoidal block; 312. Protective cover; 313. Positioning block; 314. Inclined block; 315. Spring 1; 316. Connecting rod; 317. Pull rod; 321. Sliding column; 322. Spring 2; 323. Limiting block; 41. Sealing ring; 42. Fixing sleeve; 43. Connecting sleeve; 44. Flexible rubber sealing gasket. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0027] Please see Figure 1-6 This utility model provides a technical solution: an AOA sensor protection device for aircraft maintenance, including an AOA sensor 1, a bolt 5 threadedly connected to the top of the AOA sensor 1, a connecting plate 2 fixedly connected to the top of the AOA sensor 1 by the bolt 5, a fixing limit mechanism 3 provided on the top of the connecting plate 2, and a sealing mechanism 4 provided at the bottom of the fixing limit mechanism 3.

[0028] The fixed limiting mechanism 3 includes a fixing component 31 and a limiting component 32, with the limiting component 32 disposed on the back of the fixing component 31;

[0029] The fixing component 31 includes a trapezoidal block 311, which is inserted into the connecting plate 2. A protective cover 312 is fixedly connected to the top of the trapezoidal block 311, and a positioning block 313 is fixedly connected to the bottom of the protective cover 312. An inclined block 314 is slidably connected inside the connecting plate 2. A connecting rod 316 is fixedly connected to the front of the inclined block 314, and a pull rod 317 is fixedly connected to the front of the connecting rod 316. A spring 315 is fixedly connected between the inclined block 314 and the connecting plate 2 to facilitate quick connection of the protective cover 312 and the AOA sensor 1, thereby protecting the exterior of the AOA sensor 1.

[0030] Furthermore, a through groove is provided at the corresponding position of the pull rod 317 and the connecting plate 2, and the pull rod 317 is slidably connected in the through groove, which facilitates quick connection of the protective cover 312 and the connecting plate 2.

[0031] Furthermore, the bottom of the inclined block 314 abuts against the top of the trapezoidal block 311, and the positioning block 313 is provided with a groove at the corresponding position of the connecting plate 2. The positioning block 313 is slidably connected in the groove, and the insertion depth of the positioning block 313 is less than the groove depth. The trapezoidal block 311 is provided with a groove at the corresponding position of the connecting plate 2, and the insertion depth of the trapezoidal block 311 is less than the groove depth. This facilitates the quick fixation of the trapezoidal block 311, so that the trapezoidal block 311 and the positioning block 313 can slide in the groove corresponding to the connecting plate 2.

[0032] Furthermore, the limiting component 32 includes a sliding column 321, which is slidably connected inside the connecting plate 2. A limiting block 323 is fixedly connected to the front of the sliding column 321, and a spring 322 is fixedly connected between the limiting block 323 and the connecting plate 2, which facilitates the improved engagement effect of the trapezoidal block 311 in the corresponding groove of the connecting plate 2.

[0033] Furthermore, the bottom of the limiting block 323 abuts against the top of the trapezoidal block 311, and the sliding column 321 has a hole at the corresponding position of the connecting plate 2, and the sliding column 321 is slidably connected in the hole, which facilitates the left and right sliding of the limiting block 323. Example

[0034] Please see Figure 6 Furthermore, in conjunction with Embodiment 1, the sealing mechanism 4 includes a fixed sleeve 42, which is fixedly connected to the bottom of the protective cover 312. A sealing ring 41 is fixedly connected to the bottom of the fixed sleeve 42, and a connecting sleeve 43 is fixedly connected to the bottom of the sealing ring 41. A flexible rubber sealing gasket 44 is fixedly connected to the bottom of the connecting sleeve 43, which facilitates the prevention of contaminants such as moisture and dust from entering the sensor.

[0035] Furthermore, a groove is provided at the corresponding position of the flexible rubber sealing gasket 44 and the connecting plate 2, and the flexible rubber sealing gasket 44 is inserted into the groove to improve the sealing effect.

[0036] In actual operation, when the device is used, firstly, when the device is connected to the AOA sensor 1, the protective cover 312 set on the outside of the fixed limiting mechanism 3 completely covers the AOA sensor 1 through the fixed limiting mechanism 3, which protects the AOA sensor 1 from damage. When the protective cover 312 is hit or slapped, the flexible rubber sealing gasket 44 in the sealing mechanism 4 set inside the protective cover 312 deforms and is compressed by the impact. This, in turn, drives the positioning block 313 and the trapezoidal block 311 to slide in the corresponding groove of the connected plate 2, thus playing a buffering role before the collision. When disassembling, by manually pulling the pull rod 317 forward, the pull rod 317 synchronously drives the connecting rod 316 to move, and at the same time, the connecting rod 316 pulls the inclined block 314 forward. The inclined block 314 is completely disengaged from the trapezoidal block 311. Then, the protective cover 312 is manually pulled upwards, and during the movement of the protective cover 312, the limiting block 323 is pushed to move along the groove corresponding to the guide of the sliding column 321. After that, the protective cover 312 is completely disengaged from the connecting plate 2, thereby exposing the AOA sensor 1 to the outside, making it convenient for later maintenance of the AOA sensor 1. When the protective cover 312 is connected to the AOA sensor 1, the flexible rubber sealing gasket 44 is inserted into the groove corresponding to the connecting plate 2 through the sealing mechanism 4 during the connection process. Under the compression elasticity of the sealing ring 41, the flexible rubber sealing gasket 44 under the connecting sleeve 43 is always in contact with the top of the connecting plate 2, ensuring that the connection between the connecting plate 2 and the flexible rubber sealing gasket 44 maintains a sealing effect.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An AOA sensor protection device for aircraft maintenance, comprising an AOA sensor (1), characterized in that: The top of the AOA sensor (1) is threaded with a bolt (5), and the top of the AOA sensor (1) is fixedly connected to a connecting plate (2) by the bolt (5). The top of the connecting plate (2) is provided with a fixing limit mechanism (3), and the bottom of the fixing limit mechanism (3) is provided with a sealing mechanism (4). The fixed limiting mechanism (3) includes a fixing component (31) and a limiting component (32), wherein the limiting component (32) is disposed on the back of the fixing component (31); The fixing component (31) includes a trapezoidal block (311), which is inserted into the connecting plate (2). A protective cover (312) is fixedly connected to the top of the trapezoidal block (311), and a positioning block (313) is fixedly connected to the bottom of the protective cover (312). An inclined block (314) is slidably connected inside the connecting plate (2). A connecting rod (316) is fixedly connected to the front of the inclined block (314), and a pull rod (317) is fixedly connected to the front of the connecting rod (316). A spring (315) is fixedly connected between the inclined block (314) and the connecting plate (2).

2. The AOA sensor protection device for aircraft maintenance according to claim 1, characterized in that: The pull rod (317) has a through groove at the corresponding position of the connecting plate (2), and the pull rod (317) is slidably connected in the through groove.

3. The AOA sensor protection device for aircraft maintenance according to claim 1, characterized in that: The bottom of the inclined block (314) abuts against the top of the trapezoidal block (311), and the positioning block (313) is provided with a groove at the corresponding position of the connecting plate (2), and the positioning block (313) is slidably connected in the groove, and the insertion depth of the positioning block (313) is less than the groove depth, and the trapezoidal block (311) is provided with a groove at the corresponding position of the connecting plate (2), and the insertion depth of the trapezoidal block (311) is less than the groove depth.

4. The AOA sensor protection device for aircraft maintenance according to claim 1, characterized in that: The limiting component (32) includes a sliding column (321), which is slidably connected inside the connecting plate (2). A limiting block (323) is fixedly connected to the front of the sliding column (321), and a spring (322) is fixedly connected between the limiting block (323) and the connecting plate (2).

5. The AOA sensor protection device for aircraft maintenance according to claim 4, characterized in that: The bottom of the limiting block (323) abuts against the top of the trapezoidal block (311), and the sliding column (321) is provided with a hole at the corresponding position of the connecting plate (2), and the sliding column (321) is slidably connected in the hole.

6. The AOA sensor protection device for aircraft maintenance according to claim 1, characterized in that: The sealing mechanism (4) includes a fixed sleeve (42), which is fixedly connected to the bottom of the protective cover (312). A sealing ring (41) is fixedly connected to the bottom of the fixed sleeve (42), and a connecting sleeve (43) is fixedly connected to the bottom of the sealing ring (41). A flexible rubber sealing gasket (44) is fixedly connected to the bottom of the connecting sleeve (43).

7. The AOA sensor protection device for aircraft maintenance according to claim 6, characterized in that: The flexible rubber sealing gasket (44) has a groove at the corresponding position of the connecting plate (2), and the flexible rubber sealing gasket (44) is inserted into the groove.

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