Anti-clogging protective cover for an aircraft static pressure hole

Abstract

The utility model relates to the field of aviation safety and airworthiness guarantee, specifically is a kind of airplane static pressure hole anti-blocking protective cover, including one protective cover, the one protective cover includes two protective cover, the rear middle part of two protective cover is fixedly connected with handle, the middle part of left and right sides of two protective cover is fixedly connected with one square block, the far side of two one square block is all set up T square groove;The utility model is through simultaneously pressing both sides right-angled triangle bolt, makes right-angled triangle bolt shrink to T square groove inner wall and separate square hole, simultaneously grabs handle and pulls back to make two protective cover separate installation groove and can complete disassembly, operator presses right-angled triangle bolt and can complete disassembly, when assembling, two protective cover is aligned installation groove and pressed into position, right-angled triangle bolt and square hole self-locking can be realized, substantially shorten the operation time of ground maintenance, sealing ring is attached to the gap of two protective cover, can effectively block external impurities.

Description

Technical Field

[0001] This utility model relates to the field of aviation safety and airworthiness assurance, specifically a protective cover for preventing blockage of aircraft static pressure holes. Background Technology

[0002] Aircraft static pressure orifices are precision holes or miniature static pressure probes located on the surface of an aircraft fuselage (typically distributed in areas of stable airflow, such as the nose, sides, or leading edges of the wings). They are one of the core sensing components of an air data system. Their function is to collect the static pressure of the surrounding atmosphere during flight (i.e., the pressure generated by the random motion of air molecules, independent of airflow velocity). Unlike pitot tubes, which are used to collect total pressure, the opening direction of a static pressure orifice is parallel to the aircraft surface to avoid the impact of oncoming airflow, thereby obtaining accurate environmental static pressure data.

[0003] The static pressure orifice is connected to the Atmospheric Data Computer (ADC) and various flight instruments via an internally connected conduit. Its operation is based on an extension of Bernoulli's principle in fluid mechanics. When the aircraft is in flight, the atmospheric static pressure collected by the orifice is transmitted to the ADC. The ADC, combined with the total pressure collected by the pitot tube, calculates key parameters such as the aircraft's vacuum speed and indicated airspeed. Simultaneously, the static pressure data is also linked with instruments such as the altimeter and vertical speedometer to calculate the aircraft's altitude and the corresponding rate of altitude change (climb / deceleration) using the barometric altitude formula. In short, the core function of the static pressure orifice is to provide reference static pressure data for the flight instruments, ensuring that the pilot can accurately grasp the aircraft's flight status.

[0004] Traditional protective covers are mostly fixed by screwing or binding, and disassembly and installation require tools. This takes a long time during the quick inspection phase before takeoff and can easily delay flight preparation. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems mentioned in the background art, where traditional protective covers are mostly fixed by screwing or binding, requiring tools for disassembly and assembly, and taking a long time during the rapid inspection phase before takeoff, which can easily delay flight preparation, this utility model proposes an anti-clogging protective cover for aircraft static pressure holes.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an anti-clogging protective cover for an aircraft static pressure hole, including a first protective cover, the first protective cover including a second protective cover, a handle fixedly connected to the rear center of the second protective cover, and a first square block fixedly connected to the center of both the left and right sides of the second protective cover, and a T-shaped square groove opened on the side of the two first square blocks that are far apart.

[0007] Preferably, the inner wall of the T-shaped square groove is slidably connected with a right-angled triangular pin, and square plates are fixedly connected to the opposite faces of the two right-angled triangular pins. Springs are fixedly connected to the upper and lower sides of the opposite faces of the two square plates.

[0008] Preferably, the outer wall of the square plate is slidably connected to the inner wall of the T-shaped square groove, and the other end of the spring is fixedly connected to the inner wall of the T-shaped square groove.

[0009] Preferably, the outer wall of the second protective cover is slidably connected to a first mounting seat, the first mounting seat includes a second mounting seat, and a second square block is fixedly connected to the middle of both the left and right sides of the second mounting seat. An installation groove is opened behind the second mounting seat and the second square block, and a sealing ring is fixedly connected to the front of the inner wall of the installation groove. Square holes are opened on both the left and right sides of the inner wall of the installation groove.

[0010] Preferably, the inner wall of the mounting groove is slidably connected to the outer wall of the second protective cover and the first square block, the inner wall of the square hole is slidably connected to the outer wall of the right-angled triangular pin, and the rear of the sealing ring is tightly attached to the front of the second protective cover.

[0011] Preferably, a first static pressure base is fixedly connected to the front of the second mounting base, the first static pressure base includes a second static pressure base, the second static pressure base has a mounting hole in the middle, and the rear of the second static pressure base is fixedly connected to the front of the second mounting base.

[0012] Preferably, the inner wall of the mounting hole is provided with a second Pitot tube probe, which includes a first Pitot tube probe. The first Pitot tube probe has a static pressure hole, and the outer wall of the first Pitot tube probe is fixedly connected to the inner wall of the second static pressure base.

[0013] The advantages of this utility model are:

[0014] This utility model can be disassembled by the operator pressing the right-angled triangular pin. During assembly, the second protective cover is aligned with the mounting groove and pressed into place to achieve self-locking between the right-angled triangular pin and the square hole, which greatly shortens the operation time for ground maintenance. The sealing ring fits into the gap of the second protective cover, which can effectively prevent external impurities such as dust, sand, rainwater, and snow from entering the static pressure hole. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the exploded cross-section structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the No. 1 protective cover structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the No. 1 mounting base structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the No. 1 static pressure base and the No. 2 Pitot tube probe structure of this utility model.

[0021] In the diagram: 1. Protective cover No. 1; 2. Mounting base No. 1; 3. Static pressure base No. 1; 4. Pitot tube probe No. 2; 11. Protective cover No. 2; 12. Handle; 13. Square block No. 1; 14. T-shaped square groove; 15. Right-angled triangular pin; 16. Square plate; 17. Spring; 21. Mounting base No. 2; 22. Square block No. 2; 23. Mounting groove; 24. Sealing ring; 25. Square hole; 31. Static pressure base No. 2; 32. Mounting hole; 41. Pitot tube probe No. 1; 42. Static pressure hole. Detailed Implementation

[0022] 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 scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses an anti-clogging protective cover for an aircraft static pressure port. (Refer to...) Figure 1-4A protective cover for preventing blockage of an aircraft static pressure port includes a first protective cover 1, which includes a second protective cover 11. A handle 12 is fixedly connected to the center of the rear of the second protective cover 11. Square blocks 13 are fixedly connected to the center of both sides of the second protective cover 11. T-shaped grooves 14 are formed on the opposite sides of the two square blocks 13. Right-angled triangular pins 15 are slidably connected to the inner walls of the T-shaped grooves 14. Square plates 16 are fixedly connected to the opposite faces of the two right-angled triangular pins 15. Springs 17 are fixedly connected to the upper and lower sides of the opposite faces of the two square plates 16. The outer walls of the square plates 16 are slidably connected to the inner walls of the T-shaped grooves 14. The other end of the springs 17 is connected to… The inner wall of the T-shaped square groove 14 is fixedly connected, and the outer wall of the second protective cover 11 is slidably connected to the first mounting seat 2. The first mounting seat 2 includes the second mounting seat 21. The middle of the left and right sides of the second mounting seat 21 is fixedly connected to the second square block 22. The second mounting seat 21 and the second square block 22 are provided with a mounting groove 23. The front of the inner wall of the mounting groove 23 is fixedly connected to the sealing ring 24. The left and right sides of the inner wall of the mounting groove 23 are provided with square holes 25. The inner wall of the mounting groove 23 is slidably connected to the outer wall of the second protective cover 11 and the first square block 13. The inner wall of the square hole 25 is slidably connected to the outer wall of the right-angled triangular pin 15. The rear of the sealing ring 24 is tightly attached to the front of the second protective cover 11.

[0025] Protective cover 1 can be quickly installed and removed from mounting base 2. During use, by grasping handle 12, protective cover 11 and square block 13 are inserted into mounting slot 23. Right-angled triangular pin 15, square plate 16, and T-shaped slot 14 slide. When the right-angled triangular pin 15 aligns with the square hole 25, spring 17 pushes the square plate 16 and right-angled triangular pin 15 with elastic force. The right-angled triangular pin 15 slides into the square hole 25, securing protective cover 11. Protective cover 11 and sealing ring 24 are tightly sealed, protecting static pressure hole 42. When disassembly is required, press simultaneously... The right-angled triangular pins 15 on both sides are retracted into the inner wall of the T-shaped square groove 14 and disengaged from the square hole 25. At the same time, the handle 12 is grasped and pulled backward to disengage the second protective cover 11 from the mounting groove 23 to complete the disassembly. The operator can also complete the disassembly by pressing the right-angled triangular pins 15. During assembly, the second protective cover 11 is aligned with the mounting groove 23 and pressed into place to achieve self-locking between the right-angled triangular pins 15 and the square hole 25, which greatly shortens the operation time of ground maintenance. The sealing ring 24 fits into the gap of the second protective cover 11, which can effectively prevent external impurities such as dust, sand, rainwater, and snow from entering the static pressure hole 42.

[0026] Reference Figure 5A first static pressure base 3 is fixedly connected to the front of the second mounting base 21. The first static pressure base 3 includes a second static pressure base 31. A mounting hole 32 is opened in the middle of the second static pressure base 31. The rear of the second static pressure base 31 is fixedly connected to the front of the second mounting base 21. A second Pitot tube probe 4 is provided on the inner wall of the mounting hole 32. The second Pitot tube probe 4 includes a first Pitot tube probe 41. The first Pitot tube probe 41 has a static pressure hole 42. The outer wall of the first Pitot tube probe 41 is fixedly connected to the inner wall of the second static pressure base 31.

[0027] Working principle: Protective cover 1 can be quickly installed and removed from mounting base 2. During use, by grasping handle 12, protective cover 11 and square block 13 are inserted into mounting groove 23. Right-angled triangular pin 15, square plate 16, and T-shaped groove 14 slide. When the right-angled triangular pin 15 aligns with the square hole 25, spring 17 pushes the square plate 16 and right-angled triangular pin 15 with elastic force. The right-angled triangular pin 15 slides into the square hole 25, fixing protective cover 11. Protective cover 11 and sealing ring 24 are tightly sealed, protecting static pressure hole 42. When disassembly is required, the same... Press the right-angled triangular pins 15 on both sides to retract them into the inner wall of the T-shaped square groove 14 and disengage them from the square hole 25. At the same time, grasp the handle 12 and pull it backward to disengage the second protective cover 11 from the mounting groove 23 to complete the disassembly. The operator can also disassemble the device by pressing the right-angled triangular pins 15. When assembling, align the second protective cover 11 with the mounting groove 23 and press it into place to achieve self-locking between the right-angled triangular pins 15 and the square hole 25, which greatly shortens the operation time for ground maintenance. The sealing ring 24 fits into the gap of the second protective cover 11, which can effectively prevent external impurities such as dust, sand, rainwater, and snow from entering the static pressure hole 42.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A protective cover for preventing clogging of an aircraft static pressure port, comprising a first protective cover (1), characterized in that: The first protective cover (1) includes a second protective cover (11). A handle (12) is fixedly connected to the middle of the rear of the second protective cover (11). A first square block (13) is fixedly connected to the middle of the left and right sides of the second protective cover (11). A T-shaped square groove (14) is opened on the side of the two first square blocks (13) that are far apart.

2. The anti-clogging protective cover for an aircraft static pressure hole according to claim 1, characterized in that: The inner wall of the T-shaped square groove (14) is slidably connected with a right-angled triangular pin (15), and square plates (16) are fixedly connected to the opposite faces of the two right-angled triangular pins (15). Springs (17) are fixedly connected to the upper and lower sides of the opposite faces of the two square plates (16).

3. The anti-clogging protective cover for an aircraft static pressure hole according to claim 2, characterized in that: The outer wall of the square plate (16) is slidably connected to the inner wall of the T-shaped square groove (14), and the other end of the spring (17) is fixedly connected to the inner wall of the T-shaped square groove (14).

4. The anti-clogging protective cover for an aircraft static pressure hole according to claim 1, characterized in that: The outer wall of the second protective cover (11) is slidably connected to the first mounting base (2), the first mounting base (2) includes the second mounting base (21), the middle of the left and right sides of the second mounting base (21) is fixedly connected to the second square block (22), the second mounting base (21) and the second square block (22) are provided with a mounting groove (23) behind them, the front of the inner wall of the mounting groove (23) is fixedly connected to the sealing ring (24), and the left and right sides of the inner wall of the mounting groove (23) are provided with square holes (25).

5. The anti-clogging protective cover for an aircraft static pressure hole according to claim 4, characterized in that: The inner wall of the mounting groove (23) is slidably connected to the outer wall of the second protective cover (11) and the first square block (13), the inner wall of the square hole (25) is slidably connected to the outer wall of the right-angled triangular pin (15), and the rear of the sealing ring (24) is tightly attached to the front of the second protective cover (11).

6. The anti-clogging protective cover for an aircraft static pressure hole according to claim 4, characterized in that: The first static pressure base (3) is fixedly connected to the front of the second mounting base (21). The first static pressure base (3) includes a second static pressure base (31). The second static pressure base (31) has a mounting hole (32) in the middle. The rear of the second static pressure base (31) is fixedly connected to the front of the second mounting base (21).

7. The anti-clogging protective cover for an aircraft static pressure hole according to claim 6, characterized in that: The inner wall of the mounting hole (32) is provided with a second Pitot tube probe (4), which includes a first Pitot tube probe (41). The first Pitot tube probe (41) has a static pressure hole (42), and the outer wall of the first Pitot tube probe (41) is fixedly connected to the inner wall of the second static pressure base (31).

Images