Helicopter horizontal measuring scale

Abstract

The utility model discloses a horizontal measuring scale for a helicopter, which particularly relates to the field of helicopter measurement and comprises a fixed rubber sheet, an inner support steel plate sleeved on the inner side of the fixed rubber sheet, a spherical hinge fixedly mounted on the outer side of the inner support steel plate, a horizontal rod arranged inside the spherical hinge, and a gradienter fixedly mounted inside the horizontal rod. A first fixing ring is fixedly mounted at the bottom of the horizontal rod, a hook is slidably connected to the inner side of the first fixing ring, a mounting top plate is fixedly mounted at the bottom of the hook, a flexible rule is fixedly mounted at the bottom of the mounting top plate, a connecting rope is fixedly mounted at the bottom end of the flexible rule, and a plumb bob is fixedly mounted at the bottom end of the connecting rope. According to the utility model, through the arrangement of the horizontal rod and the flexible ruler, the horizontal measuring point of the helicopter can be moved outwards horizontally under the condition that the vertical downward state is kept unchanged through the use of the horizontal rod, so that the interference of the helicopter wheel and the error caused by manually placing the measuring ruler are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of helicopter measurement, and more specifically to a helicopter level measuring ruler. Background Art

[0002] During the assembly of a helicopter, the relative positions of its main components need to be kept within a certain error range, so they need to be measured to ensure that the error is within the allowable range. At the same time, the horizontal dimensions of the helicopter's tail boom may also need to be measured.

[0003] When measuring the horizontal dimensions of the helicopter tail boom, since the measuring hole is in the arc section of the helicopter tail boom, it is easy for the measuring ruler to be offset when placed manually, resulting in a large error between the measurement result and the actual size. Therefore, how to design a helicopter horizontal measuring ruler has become a problem that we need to solve. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a helicopter horizontal measuring ruler. By setting a horizontal rod and a soft ruler, the horizontal measuring point of the helicopter can be moved horizontally outward while remaining unchanged vertically downward, thereby avoiding interference from the wheels and errors caused by manually placing the measuring ruler to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a helicopter level measuring ruler, comprising a fixed film, an inner supporting steel plate is sleeved on the inner side of the fixed film, a ball joint is fixedly installed on the outer side of the inner supporting steel plate, a horizontal rod is arranged inside the ball joint, a spirit level is fixedly installed inside the horizontal rod, a first fixed ring is fixedly installed on the bottom of the horizontal rod, a hook is slidably connected to the inner side of the first fixed ring, a mounting top plate is fixedly installed on the bottom of the hook, a soft ruler is fixedly installed on the bottom of the mounting top plate, a connecting rope is fixedly installed on the bottom end of the soft ruler, and a plumb bob is fixedly installed on the bottom end of the connecting rope.

[0006] In a preferred embodiment, a second fixing ring is fixedly installed on the top of the horizontal rod, and an adjustment rope is slidably connected to the inner side of the second fixing ring.

[0007] In a preferred embodiment, a reel is wound around one end of the adjusting rope, and a hand control box is slidably connected to the outer side of the adjusting rope.

[0008] In a preferred embodiment, the reel is rotatably connected to the inner wall of the hand control box, a worm gear is fixedly mounted on one side of the reel, and the worm gear is rotatably connected to the inner wall of the hand control box.

[0009] In a preferred embodiment, a worm is meshed on the outer side of the worm wheel, and a crank is fixedly mounted on one end of the worm.

[0010] In a preferred embodiment, the crank handle is rotatably connected to the inside of the hand control box, and a fixing rope is fixedly installed on one side of the hand control box.

[0011] In a preferred embodiment, a third fixing ring is fixedly installed on the outer side of the fixing film, the fixing rope is sleeved on the outer side of the third fixing ring, and the inner side of the fixing film is attached to the tail beam of the helicopter.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model sets a horizontal rod and a soft ruler, adheres the inner support steel plate to the outer side of the helicopter tail beam, aligns the horizontal measuring hole on the helicopter tail beam with the horizontal rod, and completes the assembly and calibration of the horizontal rod and the soft ruler. Through the use of the horizontal rod, the horizontal measuring point of the helicopter can be moved horizontally outward while remaining vertically downward, thereby avoiding the interference of the wheels and the error caused by the manual placement of the measuring ruler;

[0014] 2. The utility model sets an inner support steel plate, which can limit the shape of the fixed film. When the adhesion performance of the fixed film is reduced due to excessive use, the fixed film can be removed from the outer side of the inner support steel plate and replaced with a new fixed film. Since only the fixed film needs to be replaced, the cost can be reduced. At the same time, since the components are movably connected through the first fixing ring, the second fixing ring and the third fixing ring, they can be quickly disassembled after the measurement is completed, which is convenient for carrying and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 For this utility model Figure 1 A-section structure enlarged view.

[0017] Figure 3 For this utility model Figure 1 Enlarged view of the structure of part B.

[0018] Figure 4 For this utility model Figure 1 Enlarged view of the C structure.

[0019] The accompanying drawings are marked as follows: 1. fixing film; 2. inner supporting steel plate; 3. ball joint; 4. horizontal rod; 5. spirit level; 6. first fixing ring; 7. hook; 8. installing top plate; 9. tape measure; 10. connecting rope; 11. plumb bob; 12. second fixing ring; 13. adjusting rope; 14. reel; 15. hand control box; 16. worm gear; 17. worm; 18. crank; 19. fixing rope; 20. third fixing ring; 21. helicopter tail boom. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Refer to the instruction manual Figure 1-4 ,like Figure 1 As shown, a helicopter level measuring ruler according to an embodiment of the utility model comprises a fixed film 1, an inner support steel plate 2 is sleeved on the inner side of the fixed film 1, a ball joint 3 is fixedly installed on the outer side of the inner support steel plate 2, a horizontal rod 4 is arranged inside the ball joint 3, and a level 5 is fixedly installed inside the horizontal rod 4, as shown in FIG. Figure 2 As shown, a first fixing ring 6 is fixedly installed at the bottom of the horizontal rod 4, a hook 7 is slidably connected to the inner side of the first fixing ring 6, and a mounting top plate 8 is fixedly installed at the bottom of the hook 7. Figure 1 As shown, a soft ruler 9 is fixedly installed at the bottom of the mounting top plate 8, a connecting rope 10 is fixedly installed at the bottom end of the soft ruler 9, and a plumb bob 11 is fixedly installed at the bottom end of the connecting rope 10. Figure 2 As shown, a second fixing ring 12 is fixedly installed on the top of the horizontal rod 4, and an adjusting rope 13 is slidably connected to the inner side of the second fixing ring 12.

[0022] It should be noted that, when measuring the tail beam of a helicopter, the horizontal rod 4 is connected to the ball joint 3, and the inner support steel plate 2 is adhered to the outer side of the helicopter tail beam 21, so that the horizontal measuring hole on the helicopter tail beam 21 is aligned with the horizontal rod 4, and the hook at one end of the adjustment rope 13 is sleeved on the inner side of the second fixing ring 12, and the hook at one end of the fixing rope 19 is sleeved on the outer side of the third fixing ring 20, so as to control the angle of the horizontal rod 4, and the hook 7 is sleeved on the outer side of the first fixing ring 6, and the soft ruler 9 is made vertical under the weight of the plumb bob 11, and the angle of the horizontal rod 4 is controlled by rotating the hook 7. The handle 18 rotates the worm 17, which then meshes with the worm wheel 16, causing the worm wheel 16 to drive the reel 14 to rotate, thereby realizing the winding and unwinding of the adjusting rope 13 by the reel 14, and then being able to adjust the length of the adjusting rope 13, so that the horizontal rod 4 is horizontal, and whether the horizontal rod 4 is vertical can be judged by whether the bubble inside the spirit level 5 is in the middle position. Through the use of the horizontal rod 4, the horizontal measuring point of the helicopter can be moved horizontally outward while remaining vertically downward, thereby avoiding interference from the wheels and errors caused by manually placed measuring rulers.

[0023] Further, such as Figure 3 As shown, a reel 14 is wound around one end of the adjusting rope 13, a hand control box 15 is slidably connected to the outer side of the adjusting rope 13, the reel 14 is rotatably connected to the inner wall of the hand control box 15, a worm wheel 16 is fixedly installed on one side of the reel 14, the worm wheel 16 is rotatably connected to the inner wall of the hand control box 15, a worm 17 is meshed on the outer side of the worm wheel 16, a crank 18 is fixedly installed on one end of the worm 17, the crank 18 is rotatably connected to the inside of the hand control box 15, and a fixed rope 19 is fixedly installed on one side of the hand control box 15, as shown in FIG. Figure 4 As shown, a third fixing ring 20 is fixedly installed on the outer side of the fixing film 1, a fixing rope 19 is sleeved on the outer side of the third fixing ring 20, and a helicopter tail beam 21 is attached to the inner side of the fixing film 1.

[0024] It should be noted that, by sleeve-fitting the fixing film 1 on the outer side of the inner supporting steel plate 2, the shape of the fixing film 1 can be limited, thereby avoiding difficulty in fitting with the helicopter tail beam 21 due to the fixing film 1 being relatively soft. At the same time, when the adhesion performance of the fixing film 1 is reduced due to excessive use, the fixing film 1 can be removed from the outer side of the inner supporting steel plate 2 and replaced with a new fixing film 1. Since only the fixing film 1 needs to be replaced, the cost can be reduced. At the same time, since the components are movably connected through the first fixing ring 6, the second fixing ring 12 and the third fixing ring 20, they can be quickly disassembled after the measurement is completed, which is convenient for carrying and storage.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0026] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A helicopter level measuring ruler, comprising a fixed film (1), characterized in that: The inner side of the fixed rubber sheet (1) is sleeved with an inner supporting steel plate (2), the outer side of the inner supporting steel plate (2) is fixedly installed with a ball joint (3), the interior of the ball joint (3) is provided with a horizontal rod (4), the interior of the horizontal rod (4) is fixedly installed with a spirit level (5), the bottom of the horizontal rod (4) is fixedly installed with a first fixed ring (6), the inner side of the first fixed ring (6) is slidably connected with a hook (7), the bottom of the hook (7) is fixedly installed with a mounting top plate (8), the bottom of the mounting top plate (8) is fixedly installed with a soft ruler (9), the bottom end of the soft ruler (9) is fixedly installed with a connecting rope (10), and the bottom end of the connecting rope (10) is fixedly installed with a plumb bob (11).

2. A helicopter level measuring ruler according to claim 1, characterized in that: A second fixing ring (12) is fixedly mounted on the top of the horizontal rod (4), and an adjusting rope (13) is slidably connected to the inner side of the second fixing ring (12).

3. A helicopter level measuring ruler according to claim 2, characterized in that: A reel (14) is wound around one end of the adjusting rope (13), and a hand control box (15) is slidably connected to the outer side of the adjusting rope (13).

4. A helicopter level measuring ruler according to claim 3, characterized in that: The reel (14) is rotatably connected to the inner wall of the hand control box (15), a worm gear (16) is fixedly mounted on one side of the reel (14), and the worm gear (16) is rotatably connected to the inner wall of the hand control box (15).

5. A helicopter level measuring ruler according to claim 4, characterized in that: A worm (17) is meshed on the outer side of the worm wheel (16), and a crank (18) is fixedly mounted on one end of the worm (17).

6. A helicopter level measuring ruler according to claim 5, characterized in that: The crank handle (18) is rotatably connected to the inside of the hand control box (15), and a fixing rope (19) is fixedly installed on one side of the hand control box (15).

7. A helicopter level measuring ruler according to claim 6, characterized in that: A third fixing ring (20) is fixedly mounted on the outer side of the fixing rubber sheet (1), the fixing rope (19) is sleeved on the outer side of the third fixing ring (20), and a helicopter tail beam (21) is attached to the inner side of the fixing rubber sheet (1).

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