Helicopter bucket valve opening and closing control mechanism

Abstract

The utility model relates to the technical field of aviation fire extinguishing equipment disaster prevention and reduction equipment, in particular to a helicopter bucket valve port opening and closing control mechanism which comprises a connecting plate, a mounting box is arranged in the connecting plate, an adjusting device is arranged in the mounting box, the adjusting device comprises a mounting frame, and a sliding block is arranged in the mounting frame. A threaded cylinder is arranged in the sliding block, a threaded rod is arranged in the threaded cylinder, a motor is arranged at the bottom of the threaded rod, and a connecting ring is arranged at the top of the sliding block. According to the helicopter bucket valve port opening and closing control mechanism, by adding a connecting ring, the effect of conveniently pulling a mooring rope is achieved, the effect of driving the connecting ring to ascend and descend is achieved through matched use of a sliding block and a mounting frame, and the effect of driving the sliding block to ascend and descend is achieved through matched use of a threaded rod and a threaded cylinder; and the effect of driving the threaded rod to rotate is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of aviation firefighting equipment and disaster prevention and mitigation equipment, specifically a helicopter bucket valve opening and closing control mechanism. Background Technology

[0002] Air firefighting mainly utilizes firefighting helicopters to extinguish fires such as forest fires, fires at hazardous chemical sites, and fires in villages lacking water sources. The principle is to use helicopters to suspend special onboard water tanks or dry powder containers and drop them directly to the center of the fire to achieve rapid fire suppression. During the process of the helicopter collecting water using the onboard water tanks, the water tanks need to be suspended below the helicopter, and then the helicopter is lowered to sink the water tanks into rivers or lakes to collect water before rising again and flying to the fire site.

[0003] The existing helicopter bucket valve opening and closing control mechanism cannot quickly adapt to different bucket sizes, causing the best firefighting opportunity to be missed. In addition, the use of a large number of bolts for fixing makes maintenance inconvenient. Therefore, there is an urgent need for a helicopter bucket valve opening and closing control mechanism to improve the above problems. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide a helicopter bucket valve opening and closing control mechanism to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a helicopter bucket valve opening and closing control mechanism, including a connecting plate, a mounting box inside the connecting plate, an adjusting device inside the mounting box, a mounting bracket, a slider inside the mounting bracket, a threaded cylinder inside the slider, a threaded rod inside the threaded cylinder, a motor at the bottom of the threaded rod, a connecting ring at the top of the slider, a cable inside the connecting ring, and a sealing device on the inner wall of the mounting box.

[0007] The present invention is further configured such that: the mounting bracket is fixedly connected to the inside of the mounting box, the slider is slidably connected to the inside of the mounting bracket, the connecting ring is slidably connected to the outside of the cable, and the threaded rod is adapted to the threaded cylinder.

[0008] By adopting the above technical solution, the slider is slidably connected inside the mounting bracket, thus playing a transmission role.

[0009] The present invention is further configured such that: the sealing device includes a threaded hole and a slot; a fixing bolt is provided inside the threaded hole; a locking block is provided inside the slot; a spring rod is provided on one side of the locking block; a mounting shell is provided on the outer side of the spring rod; a sealing plate and a connecting rod are provided on one side of the mounting shell; a through hole is provided inside the connecting rod; a baffle is provided on one side of the sealing plate; and a lifting device is provided on the other side of the sealing plate.

[0010] By adopting the above technical solution, a through hole is opened inside the connecting rod to serve as a limit.

[0011] The present invention is further configured such that: the threaded hole is opened inside the mounting box, the slot is opened on the inner wall of the mounting box, the fixing bolt is adapted to the threaded hole, and the sealing plate is snapped into the interior of the mounting box.

[0012] By adopting the above technical solution, the slot is opened on the inner wall of the installation box, which serves as a limit.

[0013] The present invention is further configured such that: the lifting device includes a connecting frame and an electric push rod, the connecting frame is provided with a connecting shaft inside, the top of the electric push rod is provided with a limiting frame, the limiting frame is provided with a roller inside, one side of the electric push rod is provided with a limiting rod, and the outer side of the limiting rod is provided with an auxiliary wheel.

[0014] By adopting the above technical solution, a limit frame is set at the top of the electric actuator to control the lifting and lowering of the roller.

[0015] The present invention is further configured such that: the limiting rod and the connecting frame are both fixedly connected to the inside of the mounting box, the auxiliary wheel is rotatably connected to the outside of the limiting rod, and one end of the cable is fixedly connected to the inside of the connecting shaft.

[0016] By adopting the above technical solution, the auxiliary wheel is rotatably connected to the outside of the limit rod, which helps to prevent the cable from swaying.

[0017] In summary, the beneficial technical effects of this utility model are as follows:

[0018] 1. The opening and closing control mechanism of the helicopter bucket valve port, by adding a connecting ring, facilitates the pulling of the cable. The cooperation between the slider and the mounting bracket drives the connecting ring to rise and fall. The cooperation between the threaded rod and the threaded cylinder drives the slider to rise and fall. The addition of a motor drives the threaded rod to rotate. By using the above structure, the length of the cable can be quickly changed to quickly adapt to different bucket specifications and avoid missing the best fire extinguishing opportunity.

[0019] 2. The helicopter bucket valve opening and closing control mechanism, through the cooperation of the baffle and the sealing plate, serves to seal the mounting box; through the cooperation of the threaded hole and the fixing bolt, it reduces the number of fixing bolts; through the cooperation of the connecting rod and the through hole, it adapts to the fixing bolts; through the cooperation of the slot and the locking block, it provides a limiting function; and through the cooperation of the mounting shell and the spring rod, it drives the locking block to move. By using the above structure, the sealing plate can be quickly disassembled and assembled, facilitating maintenance.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the adjusting device of this utility model;

[0024] Figure 3 This is a schematic diagram of the slider of this utility model;

[0025] Figure 4 This is a schematic diagram of the sealing device of this utility model;

[0026] Figure 5 This is a structural schematic diagram of utility model A;

[0027] Figure 6 This is a schematic diagram of the lifting device of this utility model.

[0028] In the diagram: 1. Connecting plate; 2. Mounting box; 3. Adjusting device; 4. Mounting frame; 5. Slider; 6. Threaded cylinder; 7. Threaded rod; 8. Motor; 9. Connecting ring; 10. Cable; 11. Sealing device; 12. Threaded hole; 13. Slot; 14. Fixing bolt; 15. Locking block; 16. Spring rod; 17. Mounting shell; 18. Sealing plate; 19. Connecting rod; 20. Through hole; 21. Baffle; 22. Wire lifting device; 23. Connecting frame; 24. Electric actuator; 25. Connecting shaft; 26. Limiting frame; 27. Roller; 28. Limiting rod; 29. ​​Auxiliary wheel. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Reference Figures 1 to 6 This utility model discloses a helicopter bucket valve opening and closing control mechanism, including a connecting plate 1, an installation box 2 inside the connecting plate 1, an adjusting device 3 inside the installation box 2, an adjusting device 3 including an installation frame 4, a slider 5 inside the installation frame 4, a threaded cylinder 6 inside the slider 5, a threaded rod 7 inside the threaded cylinder 6, a motor 8 at the bottom of the threaded rod 7, a connecting ring 9 at the top of the slider 5, a cable 10 inside the connecting ring 9, and a sealing device 11 on the inner wall of the installation box 2. In this embodiment, the connecting plate 1 connects the helicopter and the bucket, the installation frame 4 limits movement, and the slider 5 drives the transmission.

[0032] Reference Figure 2 and Figure 3 The mounting bracket 4 is fixedly connected to the inside of the mounting box 2, the slider 5 is slidably connected to the inside of the mounting bracket 4, the connecting ring 9 is slidably connected to the outside of the cable 10, and the threaded rod 7 is adapted to the threaded cylinder 6. In this embodiment, the connecting ring 9 plays the role of controlling the available length of the cable 10, the cable 10 plays the role of pulling the valve, and the threaded rod 7 plays the role of driving the slider 5 to rise and fall.

[0033] Reference Figures 2 to 6 The sealing device 11 includes a threaded hole 12 and a slot 13. A fixing bolt 14 is provided inside the threaded hole 12. A locking block 15 is provided inside the slot 13. A spring rod 16 is provided on one side of the locking block 15. A mounting shell 17 is provided on the outside of the spring rod 16. A sealing plate 18 and a connecting rod 19 are provided on one side of the mounting shell 17. A through hole 20 is provided inside the connecting rod 19. A baffle 21 is provided on one side of the sealing plate 18. A lifting device 22 is provided on the other side of the sealing plate 18. In this embodiment, the slot 13 serves as a limit, the fixing thread 14 serves as a fixing baffle 21, and the through hole 20 serves as a fit for the fixing bolt 14.

[0034] Reference Figure 4 and Figure 5The threaded hole 12 is opened inside the mounting box 2, the slot 13 is opened on the inner wall of the mounting box 2, the fixing bolt 14 is adapted to the threaded hole 12, and the sealing plate 18 is snapped into the inside of the mounting box 2. In this embodiment, the threaded hole 12 serves to install the fixing bolt 14, and the sealing plate 18 serves to insulate heat.

[0035] Reference Figure 6 The cable lifting device 22 includes a connecting frame 23 and an electric push rod 24. The connecting frame 23 has a connecting shaft 25 inside. The top of the electric push rod 24 has a limit frame 26. The limit frame 26 has a roller 27 inside. One side of the electric push rod 24 has a limit rod 28. The outside of the limit rod 28 has an auxiliary wheel 29. In this embodiment, the electric push rod 24 controls the lifting and lowering of the roller 27. The roller 27 pulls the cable 10. The limit frame 26 facilitates the rotation of the roller 27.

[0036] Reference Figure 6 The limiting rod 28 and the connecting frame 23 are both fixedly connected to the inside of the mounting box 2. The auxiliary wheel 29 is rotatably connected to the outside of the limiting rod 28. One end of the cable 10 is fixedly connected to the inside of the connecting shaft 25. In this embodiment, the limiting rod 28 facilitates the rotation of the auxiliary wheel 29, and the auxiliary wheel 29 reduces friction.

[0037] The implementation principle of this embodiment is as follows:

[0038] Different specifications of buckets have different lengths of connecting lines. When facing buckets of different specifications, the motor 8 drives the threaded rod 7 to rotate, and the threaded rod 7 and the threaded cylinder 6 work together to drive the slider 5 to slide up and down inside the mounting frame 4. While the slider 5 moves up and down, the connecting ring 9 moves with the slider 5. By changing the height of the connecting ring 9, the usable length of the cable 10 can be controlled, thereby achieving quick adaptation to buckets of different specifications.

[0039] When it is necessary to repair the internal structure of the mounting box 2, first use tools to remove the fixing bolt 14 inside the threaded hole 12 (compared to the existing dozen or so bolts, this can effectively reduce the time of removing the fixing bolt 14). After the fixing bolt 14 is removed from the inside of the threaded hole 12, pull the baffle 21 outward to use the locking block 15 to lose connection with the slot 13. After removing the baffle 21 and the sealing plate 18, the internal structure can be repaired. After the repair is completed, first push one side of the mounting shell 17 into the inside of the mounting box 2 so that the locking block 15 is locked in the inside of the slot 13. Use the pushing force provided by the spring rod 16 to prevent the locking block 15 from falling off. At the same time, the connecting rod 19 is embedded in the inner wall of the mounting box 2, and the through hole 20 is concentric with the threaded hole 12. Then, install the fixing bolt 14 inside the threaded hole 12. After the fixing bolt 14 is threaded into the inside of the threaded hole 12, the fixing of the baffle 21 and the sealing plate 18 is completed.

[0040] When the valve port is opened or closed, the electric actuator 24 can drive the connecting frame 23 to move up and down, and the roller 27 can push the cable 10 to move upward, so as to pull the valve. During the movement of the cable 10, the auxiliary wheel 29 rotates outside the limit rod 28 to prevent the cable 10 from shaking. The cable 10 is respectively locked inside the auxiliary wheel 29 and the roller 27. When the usable length of the cable 10 changes, the connecting shaft 25 will rotate inside the connecting frame (23).

[0041] Compared with the prior art, the present invention has the following advantages:

[0042] The addition of a connecting ring 9 facilitates the pulling of the cable 10. The cooperation between the slider 5 and the mounting bracket 4 enables the connecting ring 9 to rise and fall. The cooperation between the threaded rod 7 and the threaded cylinder 6 enables the slider 5 to rise and fall. The addition of a motor 8 enables the threaded rod 7 to rotate. By using the above structure, the length of the cable 10 can be quickly changed to adapt to different sizes of buckets, avoiding missing the best fire extinguishing opportunity. The cooperation between the baffle 21 and the sealing plate 18 seals the mounting box 2. The cooperation between the threaded hole 12 and the fixing bolt 14 reduces the number of fixing bolts 14. The cooperation between the connecting rod 19 and the through hole 20 accommodates the fixing bolts 14. The cooperation between the slot 13 and the locking block 15 limits movement. The cooperation between the mounting shell 17 and the spring rod 16 moves the locking block 15. By using the above structure, the sealing plate 18 can be quickly disassembled and assembled, facilitating maintenance.

[0043] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A mechanism for opening and closing a valve port of a helicopter bucket, characterized by: The utility model provides a kind of adjusting device, including connecting plate (1), the inside of connecting plate (1) is provided with installation box (2), the inside of installation box (2) is provided with adjusting device (3), adjusting device (3) includes mounting bracket (4), the inside of mounting bracket (4) is provided with sliding block (5), the inside of sliding block (5) is provided with threaded cylinder (6), the inside of threaded cylinder (6) is provided with threaded rod (7), the bottom of threaded rod (7) is provided with motor (8), the top of sliding block (5) is provided with connecting ring (9), the inside of connecting ring (9) is provided with cable (10), the inner wall of installation box (2) is provided with sealing device (11).

2. A mechanism for opening and closing a valve port of a helicopter bucket according to claim 1, characterized in that: The mounting bracket (4) is fixedly connected to the inside of the installation box (2), the sliding block (5) is slidingly connected to the inside of the mounting bracket (4), the connecting ring (9) is slidingly connected to the outside of the cable (10), and the threaded rod (7) is matched with the threaded cylinder (6).

3. A mechanism for opening and closing a valve port of a helicopter bucket according to claim 1, characterized in that: The sealing device (11) includes a threaded hole (12) and a clamping groove (13), the threaded hole (12) is provided with a fixing bolt (14) inside, the clamping groove (13) is provided with a clamping block (15) inside, one side of the clamping block (15) is provided with a spring rod (16), the outside of the spring rod (16) is provided with a mounting shell (17), one side of the mounting shell (17) is provided with a sealing plate (18) and a connecting rod (19), the connecting rod (19) is provided with a through hole (20) inside, one side of the sealing plate (18) is provided with a baffle (21), and the other side of the sealing plate (18) is provided with a pull line device (22).

4. A mechanism for opening and closing a valve port of a helicopter bucket according to claim 3, characterized in that: The threaded hole (12) is formed in the inside of the installation box (2), the clamping groove (13) is formed in the inner wall of the installation box (2), the fixing bolt (14) is matched with the threaded hole (12), and the sealing plate (18) is clamped in the inside of the installation box (2).

5. A mechanism for opening and closing a valve port of a helicopter bucket according to claim 3, characterized in that: The pull line device (22) includes a connecting frame (23) and an electric push rod (24), the inside of the connecting frame (23) is provided with a connecting shaft (25), the top of the electric push rod (24) is provided with a limiting frame (26), the inside of the limiting frame (26) is provided with a roller (27), one side of the electric push rod (24) is provided with a limiting rod (28), and the outside of the limiting rod (28) is provided with an auxiliary wheel (29).

6. A mechanism for opening and closing a valve port of a helicopter bucket according to claim 5, characterized in that: The limiting rod (28) and the connecting frame (23) are both fixedly connected to the inside of the installation box (2), the auxiliary wheel (29) is rotatably connected to the outside of the limiting rod (28), and one end of the cable (10) is fixedly connected to the inside of the connecting shaft (25).

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