A static pressure hole protection device for aircraft surface cleaning

Abstract

A static pressure hole protection device for aircraft surface cleaning includes a shielding component and a lifting component that docks with it. The shielding component includes a baffle plate with a static pressure hole plug at the center of its back surface and suction cups at the four corners of its back surface, each suction cup having an unlocking lug. The front of the baffle plate has a mounting base and an unlocking component. The unlocking component includes a bracket, a rotating shaft mounted on the bracket, and a rack located under the bracket, the rack meshing with a gear on the rotating shaft. One end of the rack is connected to a spring seat via a return spring. Two T-shaped terminals are also provided at both ends of the rotating shaft. The unlocking component also includes pulleys at the four corners of the baffle plate and unlocking ropes connected to the suction cup unlocking lugs, pulleys, and terminals. This device raises the shielding component using the lifting component and attaches it to the aircraft surface using the suction cups, ensuring the static pressure hole plug blocks the static pressure holes on the aircraft, preventing blockage during cleaning and protecting the smooth surface around the static pressure holes from scratches.

Description

Technical Field

[0001] This invention relates to the field of aircraft ground maintenance equipment, and more particularly to a static pressure hole protection device used during aircraft surface cleaning. Background Technology

[0002] To keep aircraft surfaces clean, airlines regularly perform surface cleaning. Aircraft pressure vents are critical components of the aircraft system, located on the fuselage surface. To maintain the cleanliness of the pressure vent area and prevent clogging by foreign objects, the pressure vent area needs to be shielded and protected during aircraft washing. Existing protective devices for aircraft pressure vents consist of a plastic sheet secured to the pressure vent area with tape. This method of using a plastic sheet to shield the pressure vents has the following drawbacks:

[0003] 1) Because tape is used for fixing, the tape can only be used once, which wastes resources;

[0004] 2) The use of tape leaves adhesive residue;

[0005] 3) Using tape for assembly and disassembly is not quick or convenient;

[0006] 4) Because the static pressure hole area is located in the middle of the fuselage and is at a high position, it requires a push ladder for installation, which seriously affects the efficiency of aircraft surface cleaning work. Summary of the Invention

[0007] The purpose of this invention is to provide a static pressure hole protection device for use during aircraft surface cleaning, in order to overcome the shortcomings and deficiencies of the prior art.

[0008] To achieve the above objectives, this case utilizes the following technical solution:

[0009] A hydrostatic hole protection device for use during aircraft surface cleaning includes a shielding assembly and a detachable lifting assembly docked to the shielding assembly, further comprising:

[0010] Furthermore, the shielding assembly includes a baffle plate with a static pressure hole plug matching the aircraft static pressure hole at the center of its back side. Suction cups are provided at the four corners of the back side of the baffle plate, and each suction cup is provided with an unlocking lug. A mounting base is provided at the center of the front side of the baffle plate. The mounting base has symmetrical mating holes on its two side walls and an unlocking hole through the top of the mounting base. An unlocking component is also provided on the baffle plate near the top of the mounting base.

[0011] The unlocking assembly includes a bracket fixedly mounted on the baffle, a rotating shaft rotatably mounted on the bracket, and a rack movably mounted on the baffle and located below the bracket. The rack meshes with a gear mounted on the rotating shaft. One end of the rack is connected to a spring seat fixed on the baffle via a return spring. The rotating shaft also has two T-shaped terminals at each end.

[0012] The unlocking assembly also includes four pulleys respectively located at the four corners of the baffle, and an unlocking rope connected to the suction cup unlocking lug, pulleys and terminal block.

[0013] Furthermore, the lifting assembly includes a pair of connectors and a connecting rod integrally connected to the bottom of the connectors; a straight through groove is vertically opened in the center of the front of the connectors, and a pair of spring pins are symmetrically arranged laterally inside the connectors, each spring pin passing through the side wall of the straight through groove laterally, and the pair of spring pins correspond to a pair of docking holes on the side wall of the mounting base; the connecting rod is a hollow tube, and the cavity of the connecting rod communicates with the straight through groove on the connector to form an assembly slide, in which a lifting assembly is slidably installed.

[0014] Furthermore, the lifting assembly includes a slide rod, a slider, and a center connected in sequence; the slide rod is installed inside the cavity of the docking rod, and the slider and the center are installed inside the straight-through groove of the docking joint.

[0015] Furthermore, the slider has an arc-shaped slope recessed on its side, and three stop grooves are arranged at intervals on the side of the slider. The first stop groove is located at the bottom of the arc-shaped slope, the second stop groove is located at the slope of the arc-shaped slope, and the third stop groove is located on the flat side of the slider. The three stop grooves respectively cooperate with the spring pin.

[0016] Preferably, a slider control push button is fixedly provided at the bottom end of the slide rod, and the slider control push button extends laterally to the outside of the side wall of the docking rod.

[0017] Preferably, the tip and the slide are coaxially arranged, and the tip is aligned with the unlocking hole on the mounting base.

[0018] Preferably, the baffle plate is also provided with a number of weight-reducing holes.

[0019] Preferably, the mounting base is U-shaped with the opening expanding outwards.

[0020] Preferably, the baffle is made of plastic and the static pressure hole plug is made of waterproof sponge.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1) The static pressure hole protection device used in this case for cleaning the aircraft surface raises the shielding component by lifting the lifting component and attaches it to the aircraft surface with a suction cup, so that the static pressure hole plug blocks the static pressure hole on the aircraft, ensuring that the static pressure hole is not blocked during the aircraft cleaning process, and also ensuring that the smooth surface around the static pressure hole is not scratched.

[0023] 2) The lifting assembly is equipped with a jacking component. The slider in the jacking component has three positions that cooperate with the spring pin. Each of the three positions has a different control function. This allows the operator to control the shielding component at a higher position from the ground using the docking rod in the lifting assembly. This enables the operator to smoothly complete the docking and locking of the mounting base and the connector, the suction cup adsorption onto the aircraft surface, the docking and unlocking of the mounting base and the connector, and the unlocking of the suction cup on the aircraft surface. The operation is simple and convenient, ensuring that the static pressure hole is not blocked during the aircraft cleaning process and that the smooth surface around the static pressure hole is not scratched, effectively improving the aircraft surface cleaning work.

[0024] To provide a clearer understanding of the present invention, the preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0025] Figure 1 This is a front view structural diagram of the present invention;

[0026] Figure 2 This is a rear view structural schematic diagram of the present invention;

[0027] Figure 3 This is a side view of the structure of the present invention;

[0028] Figure 4 This is a schematic diagram showing the connection between the shielding component and the raising component in this invention;

[0029] Figure 5 This is a schematic diagram of the structure of the lifting component of the present invention;

[0030] Figure 6 This is a schematic diagram of the lifting assembly of the present invention;

[0031] Figure 7 for Figure 6 A magnified view of position A in the middle;

[0032] Figure 8 This is a perspective view of the present invention.

[0033] The names referred to by the numerical labels are:

[0034] 1-Shielding component, 2-Lifting component; 11-Baffle plate, 12-Static pressure hole plug, 13-Suction cup, 131-Unlocking lug, 14-Mounting base; 21-Connecting connector, 22-Connecting rod, 211-Straight through slide, 23-Spring pin; 31-Bracket, 32-Rotating shaft, 33-Rack, 34-Gear, 35-Reset spring, 36-Terminal, 37-Pulley, 38-Unlocking rope; 41-Slide rod, 42-Slider, 43-Top, 44-Slider control push button; 421-First gear slot, 422-Second gear slot, 423-Third gear slot. Detailed Implementation

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0036] Furthermore, if terms such as "first" or "second" are used for descriptive purposes only, they are mainly used to distinguish different devices, components or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, components or parts, and should not be construed as indicating or implying relative importance.

[0037] Please also refer to Figure 1-8 A static pressure hole protection device for aircraft surface cleaning includes a shielding component 1 and a detachable lifting component 2 that is attached to the shielding component 1. The shielding component 1 is used to shield the static pressure holes on the aircraft surface during surface cleaning, ensuring that the static pressure holes are not blocked and also protecting the smooth surface area around the static pressure holes. The lifting component 2 is used to raise the shielding component 1, facilitating alignment of the shielding component 1 with the static pressure holes at higher positions on the aircraft surface.

[0038] The shielding assembly 1 includes a baffle 11 with a static pressure hole plug 12 matching the static pressure hole of the aircraft located at the center of its back side. Suction cups 13 are located at the four corners of the back side of the baffle 11, and each suction cup 13 has an unlocking lug 131. In actual use, applying pressure to the baffle 11 using the lifting assembly 2 causes the suction cups 13 to adhere to the aircraft surface, aligning the static pressure hole plug 12 on the baffle 11 with the static pressure hole on the aircraft. Pulling the unlocking lug 131 on the suction cup 13 using the external force applied by the lifting assembly 2 allows the suction cup 13 to detach from the aircraft surface, thus separating the shielding assembly 1 from the aircraft surface.

[0039] A mounting base 14 is provided at the center of the front of the baffle 11. The mounting base 14 is used to dock with the lifting component 2. The mounting base 14 is U-shaped with an outwardly expanding opening, so as to guide the docking with the lifting component 2. The two side walls of the mounting base 14 are symmetrically provided with docking holes (not shown in the figure), and the top of the mounting base 14 is provided with an unlocking hole (not shown in the figure). The docking holes are used to lock the lifting component 2 when the baffle 1 docks with the lifting component 2, and the unlocking hole is used to connect the lifting component 2 and the unlocking component provided on the baffle 11.

[0040] The unlocking assembly is mounted on the baffle 11 and located near the top of the mounting base 14. The assembly includes a bracket 31 fixedly mounted on the baffle 11, a rotating shaft 32 rotatably mounted on the bracket 31, and a rack 33 movably mounted on the baffle 11 and located below the bracket 31. A gear 34 is fixedly mounted in the middle of the rotating shaft 32, meshing with the rack 33. One end of the rack 33 is connected to a spring seat fixed on the baffle 11 via a return spring 35. Two T-shaped terminals 36 are also provided at each end of the rotating shaft 32. When the rack 33 slides up and down, it drives the gear 34, which in turn drives the rotating shaft 32, which in turn drives the terminals 36, causing them to rotate about the axis of the rotating shaft 32.

[0041] Furthermore, the unlocking assembly also includes four pulleys 37 respectively disposed at the four corners of the baffle 11, and an unlocking rope 38 connected to the suction cup unlocking lug 131, the pulleys 37, and the terminal block 36. Specifically, the connection method of the suction cup unlocking lug 131, the pulleys 37, and the terminal block 36 is as follows:

[0042] The first unlocking rope is connected in sequence to the unlocking lug on the first suction cup, the first pulley, and the upper end of the first terminal block;

[0043] The second unlocking rope is connected in sequence to the lower end of the first terminal, the second pulley, and the unlocking lug on the second suction cup;

[0044] The third unlocking rope is connected in sequence to the unlocking lug on the third suction cup, the third pulley, and the upper end of the second terminal block;

[0045] The fourth unlocking rope is connected in sequence to the lower end of the second terminal, the fourth pulley, and the unlocking lug on the fourth suction cup.

[0046] Furthermore, in order to reduce the overall weight of the shielding component 1, the baffle 11 is provided with several weight-reducing holes. The unlocking rope 38 can pass through the weight-reducing holes to connect the suction cup unlocking lug 131 located on the back of the baffle 11 to the pulley 37 and the terminal block 36 located on the front of the baffle 11.

[0047] The lifting assembly 2 includes a pair of connectors 21 and a connecting rod 22 integrally connected to the bottom of the connectors 21. The connectors 21 correspond to the mounting base 14, allowing them to be inserted and removed from the mounting base 14. A vertical through-slide groove 211 is vertically formed in the center of the front of the connector 21. A pair of spring pins 23 are symmetrically arranged laterally inside the connector 21. Each spring pin 23 penetrates the side wall of the through-slide groove 211 laterally. The pair of spring pins 23 correspond to a pair of mating holes on the side wall of the mounting base 14. When the connector 21 is inserted into the mounting base 14, the outer end of the spring pin 23 elastically sinks into the corresponding mating hole under external force, thus locking the connector 21 onto the mounting base 14. When the external force on the spring pin 23 is removed, the spring pin 23 returns to its original position outside the mating hole, allowing the connector 21 to be pulled out of the mounting base 14, thus unlocking the connector 21 from the mounting base 14.

[0048] Furthermore, the connecting rod 22 is a hollow tube, and the cavity of the connecting rod 22 is connected to the straight slide groove 211 on the connecting joint 21 to form an assembly slide, in which a lifting component is slidably installed.

[0049] The lifting assembly includes a slide rod 41, a slider 42, and a tip 43 connected in sequence. The slide rod 41 is installed in the cavity of the docking rod 22, and the slider 42 and tip 43 are installed in the straight groove 211 of the connector 21. The tip 43 and the slide rod 41 are coaxially arranged, and the tip 43 is aligned with the unlocking hole on the mounting base 14. When the lifting assembly is lifted by external force, the tip 43 can pass through the unlocking hole on the mounting base 14 and lift the rack 33 on the baffle 11. The rack 33 drives the gear 34 on the rotating shaft 32, thereby driving the terminal 36 on the rotating shaft 32, and finally driving the unlocking rope 38 to unlock the suction cup 13.

[0050] Furthermore, a slider control push button 44 is fixedly provided at the bottom end of the slide rod 41. The slider control push button 44 extends laterally to the outside of the side wall of the docking rod 22. When the slider control push button 44 is pushed or pulled along the axial direction of the docking rod 22, the lifting assembly moves as a whole.

[0051] Furthermore, the slider 42 has an arc-shaped slope recessed on its side, and three position grooves are arranged at intervals on its side. The first position groove 421 is located at the bottom of the arc-shaped slope, the second position groove 422 is located on the slope surface of the arc-shaped slope, and the third position groove 423 is located on the flat side of the slider 42. The three position grooves respectively cooperate with the spring pin 23 to provide lateral force to the spring pin 23, so that the slider 42 has three functional positions, specifically:

[0052] First gear: This is the initial gear. The spring pin 23 corresponds to the first gear slot 421. At this time, the connector 21 can be freely inserted into the mounting base 14 or freely pulled out from the mounting base 14.

[0053] Second position: This position is the locking position of the connector 21. The spring pin 23 corresponds to the second position groove 422. Due to the effect of the arc-shaped slope, the spring pin 23 moves laterally to the outside and inserts into the corresponding mating hole on the mounting base 14, locking the connector 21 on the mounting base 14.

[0054] Third position: This position is the unlocking position of suction cup 13. Spring pin 23 corresponds to the third position groove 423. Due to the effect of the arc-shaped ramp, when slider 42 moves from the second position to the third position, spring pin 23 continues to move laterally outward. Spring pin 23 remains inserted in the corresponding docking hole on the mounting base 14. At this time, the tip 43 in the lifting assembly passes through the locking hole at the top of the mounting base 14 and pushes rack 33 upward. Rack 33 drives gear 34, gear 34 drives shaft 32, terminal 36 on shaft 32 rotates, terminal 36 drives unlocking rope 38, unlocking rope 38 drives suction cup unlocking ear 131 on suction cup 13, and finally unlocks and releases suction cup 13 from the aircraft surface.

[0055] Preferably, in this embodiment, the baffle 11 is made of plastic to reduce weight; the static pressure hole plug 12 is made of waterproof sponge to effectively prevent cleaning water and other foreign objects from entering the static pressure hole on the aircraft surface.

[0056] The actual operating procedure for this device is as follows:

[0057] 1) Before cleaning the aircraft surface, on the ground, the staff connects the lifting assembly 2 to the shielding assembly 1. Specifically, the slider 42 is kept in the first position, the connector 21 is inserted into the mounting base 14, and the slider 42 is pushed from the first position to the second position by the slider control push button 44, so that the connector 21 is locked in the mounting base 14.

[0058] 2) The staff holds the docking rod 22 to raise the shielding component 1 and gradually bring the baffle 11 closer to the aircraft surface, and the static pressure hole plug 12 blocks the static pressure hole. Then, the baffle 11 is pressed by the docking rod 22 so that the suction cup 13 is adsorbed onto the aircraft surface.

[0059] 3) The staff uses the slider control button 44 to move the slider 42 from the second position back to the first position, so that the connector 21 is unlocked from the mounting base 14. The staff removes the lifting assembly 2 (at this time, the shielding assembly 1 remains attached to the aircraft surface. The purpose of removing the lifting assembly 2 at this time is to reduce the overall weight of the hanging parts on the baffle 11 and prevent the shielding assembly 1 from falling off the aircraft surface).

[0060] 4) Staff begin cleaning the aircraft surface (during the cleaning process, the static pressure hole area remains shielded and protected);

[0061] 5) After the cleaning work is completed, the staff inserts the connector 21 into the mounting base 14 again, and first pushes the slider 42 from the first position to the second position by the slider control push button 44. The connector 21 is locked in the mounting base 14 again. The slider 42 continues to be pushed from the second position to the third position. The tip 43 moves up and lifts the rack 33, which finally drives the unlocking rope 38 to pull the suction cup unlocking lug 131, so that the suction cup 13 is unlocked and released from the aircraft surface.

[0062] 6) The staff removes the shielding component 1 through the docking rod 22 and moves the slider 42 from the third position to the first position on the ground. The connector 21 is unlocked from the mounting base 14. Furthermore, since the rack 33 is connected to the return spring 35, the rack 33, gear 34, shaft 32, terminal block 36, unlocking rope 38 and suction cup unlocking lug 131 are all reset to their initial state.

[0063] Compared with the prior art, the beneficial effects of the present invention are as follows: The static pressure hole protection device used for aircraft surface cleaning in this case has a lifting component on its lifting component 2. The slider 42 in the lifting component is provided with three positions that cooperate with the spring pin 23. The three positions have three control functions, so that by using the docking rod 22 in the lifting component 2, the operator can control the shielding component 1 at a higher position from the ground, and smoothly complete the docking and locking of the mounting base 14 and the docking connector 21, the suction cup 13 adsorbing onto the aircraft surface, the docking and unlocking of the mounting base 14 and the docking connector 21, and the unlocking function of the suction cup 13 on the aircraft surface. The operation is simple and convenient, ensuring that the static pressure hole is not blocked during the aircraft cleaning process, and also ensuring that the smooth surface around the static pressure hole is not scratched, effectively improving the aircraft surface cleaning work.

[0064] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A static pressure hole protection device for aircraft surface cleaning, comprising a shielding assembly and a detachable lifting assembly docked to the shielding assembly, characterized in that: The shielding assembly includes a baffle plate with a static pressure hole plug matching the static pressure hole of the aircraft located at the center of the back of the baffle plate. Suction cups are located at the four corners of the back of the baffle plate, and each suction cup is provided with an unlocking lug. A mounting base is located at the center of the front of the baffle plate. The mounting base has symmetrical mating holes on both side walls and an unlocking hole is opened through the top of the mounting base. An unlocking component is also provided on the baffle plate near the top of the mounting base. The unlocking assembly includes a bracket fixedly mounted on the baffle, a rotating shaft rotatably mounted on the bracket, and a rack movably mounted on the baffle and located below the bracket. The rack meshes with a gear mounted on the rotating shaft. One end of the rack is connected to a spring seat fixed on the baffle via a return spring. The rotating shaft also has two T-shaped terminals at each end. The unlocking assembly also includes four pulleys respectively disposed at the four corners of the baffle, and an unlocking rope connected to the suction cup unlocking lug, pulleys and terminal block; The lifting assembly includes a pair of connectors and a connecting rod integrally connected to the bottom of the connectors; a straight through groove is vertically opened in the center of the front of the connectors, and a pair of spring pins are symmetrically arranged laterally inside the connectors, each spring pin passing through the side wall of the straight through groove laterally, and the pair of spring pins correspond to a pair of docking holes on the side wall of the mounting base; the connecting rod is a hollow tube, and the tube cavity of the connecting rod is connected to the straight through groove on the connector to form an assembly slide, in which a lifting assembly is slidably installed; The lifting assembly includes a sliding rod, a slider, and a center connected in sequence; the center and the sliding rod are coaxially arranged, and the center is aligned with the unlocking hole on the mounting base; the sliding rod is installed in the cavity of the docking rod, and the slider and the center are installed in the straight through groove of the docking joint; the slider has an arc-shaped slope recessed on its side, and three stop grooves are also arranged at intervals on the side of the slider. The first stop groove is located at the bottom of the arc-shaped slope, the second stop groove is located at the slope of the arc-shaped slope, and the third stop groove is located on the flat side of the slider. The three stop grooves respectively cooperate with the spring pin; a slider control push button is fixedly installed at the bottom end of the sliding rod, and the slider control push button extends laterally to the outside of the side wall of the docking rod.

2. The static pressure hole protection device for aircraft surface cleaning according to claim 1, characterized in that: The baffle plate is also provided with several weight-reducing holes.

3. The static pressure hole protection device for aircraft surface cleaning according to claim 1, characterized in that: The mounting base is U-shaped with an opening that expands outwards.

4. The static pressure hole protection device for aircraft surface cleaning according to claim 1, characterized in that: The baffle is made of plastic, and the static pressure hole plug is made of waterproof sponge.

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