Turnover device with self-locking function
By designing a self-locking flipping device, and utilizing perforated discs, sector discs, and pin assemblies, the problems of inconvenient and unsafe flipping of aircraft auxiliary power units were solved, achieving stable and efficient flipping and assembly.
Patent Information
- Application Number
- CN202423071599.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing aircraft auxiliary power units are inconvenient to operate and have poor safety during the rollover process, making it difficult to achieve stable and efficient assembly.
A self-locking flipping device was designed, including a movable base, a fixed frame, a support plate, a flipping frame, a perforated disc, and a sector disc. The flipping angle is fixed by a pin assembly and a locking nut, and power and stability are provided by a knurled handwheel and a swivel wheel.
It enables the safe and stable rotation of aircraft auxiliary power units, improves assembly efficiency, and adapts to the rotation requirements of different models of units.
Smart Images
Figure CN223507152U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of maintenance auxiliary equipment technology, specifically a flipping device with a self-locking function. Background Technology
[0002] During the repair of an auxiliary power unit (APU) for a certain type of aircraft, the unit needs to be flipped for assembly. Currently, this is done manually, which is inconvenient and unsafe. To solve the problem of difficult APU flipping, a self-locking flipping device was designed to provide sufficient power and stability, achieving the flipping function by rotating to change the angle. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model proposes a flipping device with a self-locking function.
[0004] The technical problem to be solved by this utility model is achieved by the following technical solution:
[0005] A flipping device with a self-locking function includes a movable base, four fixed frames mounted on the movable base, two support plates on top of the four fixed frames, and a flipping frame located between the two support plates. The two ends of the flipping frame are rotatably mounted on the two support plates via a rotating shaft and a clamp. A perforated disc is fixedly connected to the rotating shaft, and a knurled handwheel is fixedly connected to its end. A perforated sector disc is fixedly mounted on the support plate on the same side, with the perforated disc and the perforated sector disc having the same center. A pin assembly is provided on the fixed frame on the same side, which can be inserted into holes on the perforated disc and the perforated sector disc to fix the flipping frame in a fixed position after flipping it at a certain angle. The flipping frame has an adjustable mounting mechanism.
[0006] As a further improvement of this utility model, the holes on the perforated disc are arranged in a circle, and the holes on the perforated sector disc are arranged in a semi-circle, and the angle between adjacent holes is 10°.
[0007] As a further improvement of this utility model, the pin assembly includes an anti-loss ring disposed on the fixed frame, an anti-loss rope connected to the anti-loss ring, and a flat-head pin connected to the anti-loss rope.
[0008] As a further improvement of this utility model, the flat-head pin is provided with threads on the outside, and a locking nut is fitted on the threads.
[0009] The beneficial effects of this utility model are:
[0010] This invention provides a self-locking flipping device, solving the problems of poor safety and low efficiency in the assembly of existing aircraft auxiliary power units. Through the design of a perforated disc, a perforated sector disc, a flat-headed pin with external threads, a knurled handwheel, a rotating shaft, a flipping frame, and a movable base, this invention enables small-angle flipping to facilitate product assembly and improve maintenance efficiency. Furthermore, by adjusting the position of the support arm or changing the support arm model, the flipping function can be adapted to different models of auxiliary power units. Attached Figure Description
[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0014] Figure 3 This is a side view of the structure of this utility model.
[0015] In the diagram: 1. Movable base; 2. Fixed frame; 3. Support plate; 4. Tilting frame; 5. Rotating shaft; 6. Casters; 7. Buckle; 8. Anchor bolt; 9. Clamp; 10. Perforated disc; 11. Perforated sector disc; 12. Base plate; 13. Knurled handwheel; 14. Support arm; 15. Fixed threaded hole; 16. Locking nut; 17. Flat-head pin; 18. Anti-loss rope; 19. Anti-loss ring; 20. Dovetail groove. Detailed Implementation
[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0017] like Figures 1 to 3 As shown, a flipping device with a self-locking function includes a movable base 1, four fixed frames 2, two support plates 3, a flipping frame 4, two rotating shafts 5, four universal wheels 6, two clamps 9, a knurled handwheel 13, a mounting mechanism, and a pin assembly.
[0018] Four casters 6 are correspondingly arranged around the bottom of the movable base 1. Four fixed brackets 2 are correspondingly fixedly installed on the left and right sides of the movable base 1. Two support plates 3 are correspondingly fixedly connected to the four fixed brackets 2, and the two support plates 3 are arranged in the front-to-back direction. Two rotating shafts 5 are arranged on the left and right sides of the flipping frame 4. Two clamps 9 are arranged on the two support plates 3. The two rotating shafts 5 and the two clamps 9 are correspondingly connected. The flipping frame 4 is rotatably mounted on the two support plates 3 through the two rotating shafts 5 and the two clamps 9. The knurled... Handwheel 13 is mounted on the left rotating shaft 5. A perforated disc 10 is fixedly connected to the left rotating shaft 5. The perforated disc 10 can rotate with the tilting frame 4. A perforated sector disc 11 is fixedly mounted on the left support plate 3 by bolts. The perforated disc 10 and the perforated sector disc 11 are concentric. The holes on the perforated disc 10 and the perforated sector disc 11 are positioning holes. The perforated disc 10 has a full circle, and the perforated sector disc 11 has a half circle. The positioning holes are distributed every 10°.
[0019] As a further improvement of this utility model, the movable base 1 is provided with four buckles 7 and four anchor bolts 8 on its four sides, and the four anchor bolts 8 are installed on the four sides of the movable base 1 through the buckles 7.
[0020] As a further improvement of this utility model, the pin assembly includes an anti-loss ring 19 disposed on the fixing frame 2, an anti-loss rope 18 connected to the anti-loss ring 19, and a flat-head pin 17 connected to the anti-loss rope 18. The flat-head pin 17 is connected to the anti-loss ring 19 on the fixture through the anti-loss rope 18 to prevent loss when not in use, and also to facilitate quick retrieval when in use.
[0021] As a further improvement of this utility model, the flat-head pin 17 is provided with threads on the outside, and a locking nut 16 is fitted on the threads. When the flipping frame 4 is flipped to a suitable angle, the flat-head pin 17 can pass through the corresponding positioning holes on the perforated disc 10 and the perforated sector disc 11, and then the locking nut 16 can be used to lock the flipping frame 4 after it is flipped.
[0022] As a further improvement of this utility model, the installation mechanism includes two dovetail grooves 20 disposed on both sides of the bottom of the flipping frame 4, four base plates 12 slidably installed in the two dovetail grooves 20, and four support arms 14 fixedly installed on the four base plates 12. The flipping frame 4 is provided with a fixing threaded hole 15 on the side on the same side as the two dovetail grooves 20. The top of the base plate 12 is fixed in position by bolts passing through the fixing threaded hole 15.
[0023] Working principle and usage process of this utility model:
[0024] In use, first adjust the four anchor bolts 8 to contact the ground, then tighten the anchor bolts 8. The auxiliary power unit is then fixed to the tilting frame 4 by fixing it to the four support arms 14. During repair and assembly, the tilting frame 4 is adjusted by rotating the knurled handwheel 13. After selecting a suitable angle, a flat-head pin 17 with external threads is inserted into the holes of the perforated disc 10 and the perforated sector disc 11. Then, the locking nut 16 is screwed into the tail of the flat-head pin 17 to fix the position. For auxiliary power units of different shapes, the four support arms 14 can be removed from the four base plates 12 and replaced with the corresponding four support arms 14. For different models of auxiliary power units, installation can be achieved by adjusting the position of the four support arms 14. During adjustment: unscrew the bolts in the fixing threaded holes 15, allowing the base plate 12 to slide freely along the dovetail groove 20. After moving to the appropriate position, the bolts are then screwed back into the fixing threaded holes 15.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A flipping device with a self-locking function, comprising a movable base (1), four fixed frames (2) disposed on the movable base (1), two support plates (3) disposed on the top of the four fixed frames (2), and a flipping frame (4) located between the two support plates (3), wherein the two ends of the flipping frame (4) are rotatably mounted on the two support plates (3), characterized in that: The two ends of the flipping frame (4) are rotatably mounted on two support plates (3) via a rotating shaft (5) and a clamp (9). A perforated disc (10) is fixedly connected to the rotating shaft (5), and a knurled handwheel (13) is fixedly connected to the end. A perforated sector disc (11) is fixedly mounted on the support plate (3) on the same side. The perforated disc (10) and the perforated sector disc (11) are concentric. A pin assembly is provided on the fixing frame (2) on the same side, which can be inserted into the holes on the perforated disc (10) and the perforated sector disc (11) to realize the fixed position after the flipping frame (4) is flipped at a certain angle. The flipping frame (4) has an installation mechanism, and the position of the installation mechanism is adjustable.
2. The flipping device with self-locking function according to claim 1, characterized in that: The perforated disc (10) has a full circle of holes, and the perforated sector disc (11) has a half circle of holes, with the angle between adjacent holes being 10°.
3. A flipping device with a self-locking function according to claim 1, characterized in that: The pin assembly includes an anti-loss ring (19) disposed on the fixed frame (2), an anti-loss rope (18) connected to the anti-loss ring (19), and a flat-head pin (17) connected to the anti-loss rope (18).
4. A flipping device with a self-locking function according to claim 3, characterized in that: The flat-head pin (17) has threads on its exterior, and a locking nut (16) fits onto the threads.
5. A flipping device with a self-locking function according to claim 1, characterized in that: The installation mechanism includes two dovetail grooves (20) on both sides of the bottom of the flipping frame (4), four base plates (12) slidably installed in the two dovetail grooves (20), and four support arms (14) fixedly installed on the four base plates (12). The flipping frame (4) is provided with a fixing threaded hole (15) on the side on the same side as the two dovetail grooves (20). The top of the base plate (12) is fixed in position by bolts passing through the fixing threaded hole (15).
6. A flipping device with a self-locking function according to claim 1, characterized in that: The bottom of the movable base (1) is provided with four casters (6).
7. A flipping device with a self-locking function according to claim 1, characterized in that: The movable base (1) has four anchor bolts (8) connected to its four sides by four buckles (7).