A high-pressure water gun for cleaning aircraft fuselage

Abstract

The present application relates to the technical field of cleaning equipment, and in particular to a high-pressure water gun for cleaning aircraft fuselages, comprising a gun body and a grip, the grip being mounted at one end of the gun body, the grip being rotatably provided with a trigger, the trigger being provided with an elastic member for resetting, the trigger being provided with a triggering portion and a linkage portion on both sides of its rotating axis, respectively, the linkage portion being provided with a tightening cable, and the end of the tightening cable away from the linkage portion being provided on the grip. The present application uses a linkage design between the trigger and the tightening cable, so that when the operator pulls the trigger, the tightening cable will automatically tighten, firmly fixing the operator's palm on the grip. This design can effectively prevent the operator from losing his grip due to the recoil force generated when the high-pressure water gun is started, thereby reducing the risk of the water gun accidentally hitting the surface of the aircraft and protecting the aircraft's fuselage surface from damage.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a high-pressure water gun for cleaning an aircraft fuselage. Background Art

[0002] When an aircraft is in flight or parked, dust, dirt, oil stains and other pollutants will accumulate on its surface. These pollutants not only affect the appearance of the aircraft, but also affect the aerodynamic characteristics, increase flight resistance and reduce fuel efficiency. Therefore, regular aircraft cleaning is essential to maintain aircraft performance and extend its service life.

[0003] Aircraft fuselage cleaning involves multiple steps, including pre-cleaning, foam spraying, high-pressure water washing, drying, etc. During the high-pressure water washing step, cleaning personnel need to use a ladder to approach different parts of the aircraft and use the powerful water flow generated by a high-pressure water gun to quickly remove stubborn dirt from the aircraft surface.

[0004] However, in actual operation, there are certain safety hazards in the use of high-pressure water guns, especially when starting them, which will generate a large recoil force, which may easily cause the cleaning staff to lose their hands and the high-pressure water gun to accidentally hit the surface of the aircraft, causing damage to the surface of the aircraft, affecting the appearance and aerodynamic performance of the aircraft, and may also cause more serious safety problems. Summary of the invention

[0005] In order to avoid the high-pressure water gun from slipping out of the hand during use and colliding with the aircraft body due to the recoil force, thereby causing damage to the aircraft body, the present application provides a high-pressure water gun for cleaning the aircraft body.

[0006] The present application provides a high-pressure water gun for cleaning an aircraft fuselage, which adopts the following technical solution:

[0007] A high-pressure water gun for cleaning an aircraft fuselage comprises a gun body and a handle, wherein the handle is mounted on one end of the gun body, the handle is rotatably provided with a trigger, the trigger is provided with an elastic member for resetting, the trigger is respectively provided with a pull-button portion and a linkage portion on both sides of its rotating axis, the linkage portion is provided with a tightening cable, and one end of the tightening cable away from the linkage portion is provided on the handle.

[0008] By adopting the above technical solution, the trigger and the tightening cable are linked. When the operator pulls the trigger, the tightening cable will automatically tighten and firmly fix the operator's palm on the grip. This design can effectively prevent the operator from losing his hand due to the recoil force generated when the high-pressure water gun is activated, thereby reducing the risk of the water gun accidentally hitting the surface of the aircraft and protecting the surface of the aircraft from damage. In addition, this solution allows the operator to easily release the trigger when the water gun is not in use. At this time, the tightening cable will relax and release the fixation on the palm. This design allows the operator to be more comfortable when working for a long time, reduces operating fatigue, and improves work efficiency.

[0009] Preferably, the tensioning rope includes a first winding rope and a second winding rope, the handle is rotatably provided with a first winding wheel and a second winding wheel, the first winding wheel and the second winding wheel are coaxially arranged, the radius of the first winding wheel is smaller than the radius of the second winding wheel, the tensioning rope includes a first winding rope and a second winding rope, two ends of the first winding rope are respectively arranged at the linkage part and the first winding wheel, and two ends of the second winding rope are respectively arranged at the handle and the second winding wheel.

[0010] By adopting the above technical solution, the tightening stroke of the second winding rope is enlarged by utilizing the different radii of the first winding wheel and the second winding wheel. When the trigger is pulled, the relative movement distance between the first winding rope and the second winding rope will be enlarged, and the operator's palm can be pressed more tightly against the grip to avoid looseness, thereby strengthening the fixing effect of the tightening rope.

[0011] Preferably, the second winding wheel is coaxially provided with an adjustment hand wheel, a connecting shaft is provided on a side of the second winding wheel close to the first winding wheel, a connecting hole is provided on a side of the first winding wheel close to the second winding wheel, and the connecting shaft is movably provided in the connecting hole.

[0012] By adopting the above technical solution, when it is necessary to adjust the tightness of the second winding rope, the operator only needs to pull the adjustment hand wheel axially to temporarily disengage the connecting shaft from the connecting hole, and then turn the adjustment hand wheel to perform winding or unwinding operations. After adjustment, the adjustment hand wheel is pressed axially to restore the connection between the connecting shaft and the connecting hole. This design allows the user to quickly adjust the tightness according to actual needs, so that the holding of the water gun is more in line with personal operating habits and comfort.

[0013] Preferably, the handle is movably provided with a fixing plate, the fixing plate is provided with anti-slip convex patterns, and / or the fixing plate is provided with barbs.

[0014] By adopting the above technical solution, the replaceable fixing plate can adapt to the operation requirements in different seasons and usage conditions. The anti-slip convex pattern design can significantly increase the friction between the handle and the operator's hand when used in summer, and can ensure that the water gun will not slip even when the hands are sweating, thereby improving the safety of operation; in winter, when the operator wears warm gloves, the fixing plate with barbs can effectively hook the fibers on the gloves, enhance the fixing effect between the water gun and the gloves, and ensure that the operator can hold the water gun firmly even when wearing gloves.

[0015] Preferably, the handle and / or the gun body is provided with an anti-drop rope, a third winding wheel is provided at one end of the anti-drop rope away from the handle, the third winding wheel is provided with a rotating shaft and a fixing part, a coil spring is provided at one end of the rotating shaft, and a centrifugal locking assembly is provided at the other end.

[0016] By adopting the above technical solution, the fixing part fixes the third reel to the ladder railing. When the water gun accidentally falls off from the operator's hand, the recoil force pulls the anti-drop cable to a certain speed, and the centrifugal locking assembly can quickly lock the third reel to prevent the anti-drop cable from continuing to unwind, thereby limiting the movement of the water gun. This design effectively prevents the water gun from rushing toward the aircraft fuselage or other dangerous areas due to the recoil force, thereby reducing the risk of damage to the aircraft or injury to surrounding personnel. In daily use, the function of the coil spring is to help the third reel automatically reel in the anti-drop cable.

[0017] Preferably, the centrifugal locking assembly includes a fixing rod, which is arranged perpendicular to the rotating shaft, and the same centrifugal ring is slidably engaged at both ends of the fixing rod, the centrifugal ring is provided with a reset piece and formed with a centrifugal part and a balancing part, the centrifugal part and the balancing part are respectively located on both sides of the fixing rod, a locking ring is provided on the outer side of the centrifugal ring, an inner gear ring is formed on the inner side of the locking ring, and locking teeth are formed on the side of the centrifugal part facing the inner gear ring.

[0018] By adopting the above technical solution, when the third winding wheel rotates, the fixed rod and the centrifugal ring are driven to rotate together through the rotating shaft. Since the mass distribution of the centrifugal part and the balancing part in the design of the centrifugal ring is different, this unbalanced mass distribution will generate centrifugal force during the rotation process, causing the centrifugal ring to slide relative to the fixed rod under the action of the centrifugal force. When the centrifugal part approaches the locking ring, the locking teeth will engage the inner gear ring of the locking ring to achieve automatic locking of the third winding wheel. This locking mechanism can be quickly activated when the water gun falls off to prevent further unwinding of the anti-falling rope.

[0019] Preferably, the fixing member is rotatably provided with a guide member, the guide member is provided with a first cableway, the first cableway is arranged in the same direction as the rotation axis of the guide member, the first cableway is connected to a second cableway, the axis of the second cableway intersects with the axis of the first cableway, and the anti-falling rope passes through the first cableway and the second cableway.

[0020] By adopting the above technical solution, the wear of the anti-drop cable is reduced. Specifically, during the cleaning process of the fuselage, the relative position between the high-pressure water gun and the fixing part changes all the time. The rotating guide part makes the outlet of the anti-drop cable always face the high-pressure water gun, avoiding direct friction, thereby significantly reducing wear. This design not only increases the service life of the anti-drop cable, but also reduces maintenance costs.

[0021] Preferably, the handle is provided with a first connecting portion, and the anti-falling rope is provided with a second connecting portion, and the second connecting portion is movably connected to the first connecting portion.

[0022] By adopting the above technical solution, the movable connection between the first connection part and the second connection part provides the operator with greater flexibility when using the water gun. Whether it is the recoil force when the water gun is started or the adjustment of the position of the water gun during the cleaning process, the movable connection can adapt to different operating requirements.

[0023] In summary, this application includes the following beneficial technical effects:

[0024] The linkage design between the trigger and the tightening cable means that when the operator pulls the trigger, the tightening cable will automatically tighten, firmly fixing the operator's palm on the grip. This design can effectively prevent the operator from losing his grip due to the recoil force generated when the high-pressure water gun is activated, thereby reducing the risk of the water gun accidentally hitting the aircraft surface and protecting the aircraft's fuselage surface from damage; in addition, this solution allows the operator to easily release the trigger when the water gun is not in use, at which time the tightening cable will relax and release the fixation on the palm. This design allows the operator to be more comfortable during long-term operations, reduces operator fatigue, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the structure inside the cavity of an embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the internal structure of the fixing device of the embodiment of the present application.

[0028] Figure 4 It is a simplified schematic diagram of the structure of the centrifugal locking assembly of an embodiment of the present application.

[0029] Figure 5 It is a schematic diagram of the internal structure of the guide member of the embodiment of the present application.

[0030] Explanation of the accompanying drawings: 1. gun body; 2. grip; 3. cavity; 4. trigger; 5. pull button; 6. linkage part; 7. first winding rope; 8. first winding wheel; 9. second winding wheel; 10. adjustment hand wheel; 11. second winding rope; 12. first guide wheel; 13. tightening rope; 14. anti-slip rope; 15. fixing device; 16. housing; 17. fixing member; 18. guide member; 19. second guide wheel; 20. first guide ropeway; 21. second guide ropeway; 22. rotating shaft; 23. coil spring; 24. centrifugal locking assembly; 25. fixing rod; 26. centrifugal ring; 27. reset member; 28. centrifugal part; 29. ​​balancing part; 30. locking ring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] Example:

[0033] See also Figure 1~2 A high-pressure water gun for cleaning an aircraft fuselage comprises a gun body 1 and a grip 2, wherein the grip 2 is mounted at one end of the gun body 1, the grip 2 forms a cavity 3, a trigger 4 is rotatably mounted in the cavity 3, the portion of the trigger 4 located in the cavity 3 is a linkage portion 6, the portion of the trigger 4 located outside the cavity 3 is a pull-button portion 5, the linkage portion 6 is connected with a first winding cable 7, a first winding wheel 8 is rotatably mounted in the cavity 3, one end of the first winding cable 7 away from the linkage portion 6 is connected to the first winding wheel 8, a hexagonal hole is provided on the side of the first winding wheel 8 away from its rotation axis as a connecting hole, and a The second winding wheel 9 has a radius greater than that of the first winding wheel 8. The rotation axis of the second winding wheel 9 passes through the cavity 3 and is connected to the adjustment hand wheel 10. The rotation axis of the second winding wheel 9 can slide along its axial direction. The end of the rotation axis of the second winding wheel 9 close to the first winding wheel 8 is a hexagonal cross-section, and the end serves as a connecting shaft matching the connecting hole. The connecting shaft is movably connected to the connecting hole. The second winding wheel 9 is wound with a second winding cable 11. The second winding cable 11 is wound around the first guide wheel 12 and passes through the cavity 3. The other end of the second winding cable 11 away from the second winding wheel 9 is connected to the handle 2. The first winding cable 7 and the second winding cable 11 are collectively referred to as the tightening cable 13 of this embodiment.

[0034] The linkage design of the trigger 4 and the tightening cable 13, when the operator pulls the trigger 4, the tightening cable 13 will automatically tighten, and the operator's palm will be firmly fixed on the grip 2, which can effectively prevent the operator from losing his hand due to the recoil force generated when the high-pressure water gun is started, thereby reducing the risk of the water gun accidentally hitting the surface of the aircraft and protecting the surface of the aircraft from damage; in addition, the scheme allows the operator to easily release the trigger 4 when the water gun is not in use, and the tightening cable 13 will relax at this time, releasing the fixation on the palm. This design makes the operator more comfortable when working for a long time, reduces operating fatigue, and improves work efficiency.

[0035] The different radii of the first winding wheel 8 and the second winding wheel 9 are used to magnify the tightening stroke of the second winding rope 11. When the trigger 4 is pulled, the relative movement distance between the first winding rope 7 and the second winding rope 11 will be magnified, and the operator's palm can be pressed more tightly against the grip 2 to avoid looseness, thereby strengthening the fixing effect of the tightening rope 13. When the tightness of the second winding rope 11 needs to be adjusted, the operator only needs to axially pull the adjustment hand wheel 10 to temporarily disengage the connecting shaft from the connecting hole, and then turn the adjustment hand wheel 10 to perform winding or unwinding operations. After adjustment, the adjustment hand wheel 10 is axially pressed to restore the connection between the connecting shaft and the connecting hole. This design allows the user to quickly adjust the tightness according to actual needs, so that the grip of the water gun is more in line with personal operating habits and comfort.

[0036] The handle 2 is movably mounted with a replaceable fixing plate (not shown in the figure), which is a replaceable part including a first fixing plate and a second fixing plate, wherein the surface of the first fixing plate is formed with anti-skid convex patterns, and the second fixing plate is formed with a barb array. The replaceable fixing plate can adapt to the operation requirements in different seasons and use conditions. The design of the anti-skid convex patterns can significantly increase the friction between the handle 2 and the operator's hand when used in summer, and can ensure that the water gun will not slip even when the hand is sweating, thereby improving the safety of operation; in winter, when the operator wears warm gloves, the fixing plate with barbs can effectively hook the fibers on the gloves, enhance the fixing effect between the water gun and the gloves, and ensure that the operator can firmly hold the water gun even when wearing gloves.

[0037] See also Figures 3-5A threaded hole is provided at the bottom of the handle 2 as the first connection part of the present embodiment, a screw is threadedly connected in the threaded hole as the second connection part, the tail of the screw is connected to an anti-slip rope 14, the other end of the anti-slip rope 14 is connected to a fixing device 15, the fixing device 15 includes a shell 16, a C-shaped clip is installed under the shell 16 as a fixing member 17 of the present embodiment, the shell 16 is rotatably installed with a guide member 18, a second guide wheel 19 and a third winding wheel, wherein a first guide ropeway 20 and a second guide ropeway 21 are provided in the guide member 18, The first cableway 20 is arranged in the same direction as the rotating axis of the guide member 18, the axis of the second cableway 21 intersects with the axis of the first cableway 20, the second guide wheel 19 is located below the guide member 18 and the axis of the first cableway 20 is tangent to the second guide wheel 19, the third winding wheel is located on one side of the second guide wheel 19, and a coil spring 23 and a centrifugal locking assembly 24 are coaxially installed on the rotating shaft 22 of the third winding wheel, and the anti-fall rope 14 is passed around the first cableway 20, the second cableway 21, and the second guide wheel 19, and then connected to the third winding wheel. The centrifugal locking assembly 24 includes a fixed rod 25, which is installed perpendicular to the rotating shaft 22. The same centrifugal ring 26 is slidably engaged at both ends of the fixed rod 25. The centrifugal ring 26 is connected to a serpentine spring as a reset member 27 and is formed with a centrifugal portion 28 and a balancing portion 29. The centrifugal portion 28 and the balancing portion 29 are respectively located on both sides of the fixed rod 25. A locking ring is fixed to the outer side of the centrifugal ring 26, and an inner gear ring is formed on the inner side of the locking ring. Locking teeth are formed on the side of the centrifugal portion 28 facing the inner gear ring.

[0038] The movable connection between the first connection part and the second connection part provides the operator with greater flexibility when using the water gun. Whether it is the recoil force when the water gun is started or the adjustment of the position of the water gun during the cleaning process, the movable connection can adapt to different operating requirements. During the cleaning process of the fuselage, the relative position between the high-pressure water gun and the fixing member 17 changes all the time. The rotating guide member 18 makes the outlet of the anti-slip cable 14 always face the high-pressure water gun, avoiding direct friction, thereby significantly reducing wear. This design not only increases the service life of the anti-slip cable 14, but also reduces maintenance costs.

[0039] The fixing member 17 fixes the third winding wheel on the ladder railing. When the water gun accidentally falls off from the operator's hand, the recoil force pulls the anti-drop rope 14 to a certain speed, and drives the fixed rod 25 and the centrifugal ring 26 to rotate together through the rotating shaft 22. Due to the different mass distributions of the centrifugal part 28 and the balancing part 29 in the design of the centrifugal ring 26, this unbalanced mass distribution will generate centrifugal force during the rotation process, causing the centrifugal ring 26 to slide relative to the fixed rod 25 under the action of the centrifugal force. When the centrifugal part 28 approaches the locking ring, the locking teeth will engage the inner gear ring of the locking ring to achieve automatic locking of the third winding wheel. This locking mechanism can be quickly activated when the water gun falls off, preventing the anti-drop rope 14 from continuing to unwind and limiting the movement of the water gun. This design effectively prevents the water gun from rushing towards the aircraft fuselage or other dangerous areas due to the recoil force, thereby reducing the risk of damage to the aircraft or injury to surrounding personnel. In daily use, the function of the coil spring 23 is to help the third winding wheel automatically rewind the anti-drop rope 14.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-pressure water gun for cleaning an aircraft fuselage, characterized in that: The invention comprises a gun body (1) and a grip (2), wherein the grip (2) is mounted on one end of the gun body (1), the grip (2) is rotatably provided with a trigger (4), the trigger (4) is provided with an elastic member for resetting, the trigger (4) is respectively provided with a pull button portion (5) and a linkage portion (6) on both sides around its rotation axis (22), the linkage portion (6) is provided with a tightening cable (13), the end of the tightening cable (13) away from the linkage portion (6) is arranged on the grip (2), the tightening cable (13) comprises a first A winding rope (7) and a second winding rope (11), the handle (2) is rotatably provided with a first winding wheel (8) and a second winding wheel (9), the first winding wheel (8) and the second winding wheel (9) are coaxially arranged, the radius of the first winding wheel (8) is smaller than the radius of the second winding wheel (9), the two ends of the first winding rope (7) are respectively arranged on the linkage part (6) and the first winding wheel (8), and the two ends of the second winding rope (11) are respectively arranged on the handle (2) and the second winding wheel (9).

2. A high-pressure water gun for cleaning an aircraft fuselage according to claim 1, characterized in that: The second winding wheel (9) is coaxially provided with an adjusting hand wheel (10); a connecting shaft is provided on a side of the second winding wheel (9) close to the first winding wheel (8); a connecting hole is provided on a side of the first winding wheel (8) close to the second winding wheel (9); and the connecting shaft is movably provided in the connecting hole.

3. A high-pressure water gun for cleaning an aircraft fuselage according to claim 1, characterized in that: The handle (2) is movably provided with a fixing plate, the fixing plate is provided with anti-slip convex patterns, and / or the fixing plate is provided with barbs.

4. A high-pressure water gun for cleaning an aircraft fuselage according to claim 1, characterized in that: The handle (2) and / or the gun body (1) are provided with an anti-slip rope (14), and a third winding wheel is provided at one end of the anti-slip rope (14) away from the handle (2), and the third winding wheel is provided with a rotating shaft (22) and a fixing member (17), and a coil spring (23) is provided at one end of the rotating shaft (22), and a centrifugal locking assembly (24) is provided at the other end.

5. A high-pressure water gun for cleaning an aircraft fuselage according to claim 4, characterized in that: The centrifugal locking assembly (24) comprises a fixing rod (25), the fixing rod (25) being arranged perpendicular to the rotating shaft (22), the two ends of the fixing rod (25) being slidably engaged with a same centrifugal ring (26), the centrifugal ring (26) being provided with a reset member (27) and being formed with a centrifugal portion (28) and a balancing portion (29), the centrifugal portion (28) and the balancing portion (29) being respectively located on both sides of the fixing rod (25), the outer side of the centrifugal ring (26) being provided with a locking ring, the inner side of the locking ring being formed with an inner gear ring, and the centrifugal portion (28) being formed with locking teeth on a side facing the inner gear ring.

6. A high-pressure water gun for cleaning an aircraft fuselage according to claim 5, characterized in that: The fixing member (17) is rotatably provided with a guide member (18), and the guide member (18) is provided with a first cableway (20). The first cableway (20) and the rotation axis of the guide member (18) are arranged in the same direction. The first cableway (20) is connected to a second cableway (21), and the axis of the second cableway (21) intersects with the axis of the first cableway (20). The anti-falling rope (14) passes through the first cableway (20) and the second cableway (21).

7. A high-pressure water gun for cleaning an aircraft fuselage according to claim 5, characterized in that: The handle (2) is provided with a first connection part, and the anti-falling rope (14) is provided with a second connection part, and the second connection part is movably connected to the first connection part.

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