Quick replacement device for cable sheath of airplane ground power van

Abstract

The utility model discloses a quick replacement device for a cable sheath of an airplane ground power van, and relates to the technical field of cable sheath replacement. One end of the trunking part is fixedly connected to one end of the frame; and a ramp plate member. According to the rapid replacement device for the cable sheath of the airplane ground power van, modular design is adopted for wire duct parts, and independent single modules are assembled, so that the length range of the cable sheath compatible with the device is larger, the transportation size of the device can be reduced, high-pressure gas is used as a power source for penetrating a steel cable through a pipe, and a winch is used as a pullback traction power source; the links of manual pipe penetrating and manual cable sheath traction are avoided, the whole cable sheath replacement work is small in number of workers and less in time consumption, the physical output of the workers is reduced, the two ends of the cable sheath are locked in a spinning mode, the clamping force on the cable sheath is large, and the situation that the sheath is loosened from the clamp due to the fact that the friction force between the cable and the sheath is too large is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cable sheath replacement technology, specifically a quick replacement device for cable sheaths of aircraft ground power vehicles. Background Technology

[0002] The cables used in aircraft ground power vehicles are basically covered with canvas sheaths. The cables are frequently rubbed against the tarmac, causing the sheaths to wear out quickly. The sheaths are usually replaced once or twice a month. Due to the lack of specialized equipment for replacing cable sheaths, they are currently replaced manually, which is time-consuming, labor-intensive, and inefficient, making it difficult to meet the needs of aviation ground support under the background of reducing personnel and increasing efficiency.

[0003] Traditional techniques primarily involve manual replacement of cable sheaths. The specific steps are as follows: Step 1: Cable sheaths vary in length from 10 to 20 meters, with 16-meter sheaths being the most common. A metal conductor rod is used to penetrate the cable sheath, compressing it to ensure that both ends of the conductor rod are not obscured by the cable sheath. Step 2: The old cable sheath is cut open and removed using scissors. Step 3: One end of the conductor rod is fixed, and the other end is connected to the cable tail. Step 4: One person holds the cable while two others use clamps or needle-nose pliers to hold the opening in the cable sheath and pull it towards the cable head. Step 5: The sheath is then secured to the cable plug, completing the sheath replacement.

[0004] Traditional techniques have two main drawbacks: First, the iron conductor rod is only 5 meters long, while the cable sheath is typically 10 to 20 meters long and quite rigid. Two people are needed to compress the cable sheath and fully insert it into the conductor rod. For cable sheaths exceeding 20 meters, manual labor is insufficient to compress them. Extending the conductor rod would make it too heavy and difficult to operate manually. Second, when manually clamping the cable sheath to the cable head, the friction between the sheath and the cable insulation gradually increases. Especially when the sheath approaches the cable head, insufficient clamping force can cause the clamp to loosen, leading to momentary instability and falls. Replacing a 16-meter cable sheath manually requires at least three people and takes 15 minutes, consuming significant manpower and physical exertion. Furthermore, the limited length of the traction rod makes it impossible to replace sheaths on cables longer than 20 meters. Utility Model Content

[0005] This utility model provides a quick cable sheath replacement device for an aircraft ground power vehicle. Its cable tray component adopts a modular design, which is assembled through independent individual modules. This allows the device to accommodate a wider range of cable sheath lengths and also reduces the size of the device during transportation. High-pressure gas is used as the power source for cable conduit insertion, and a winch is used as the power source for pull-back traction. This avoids the need for manual conduit insertion and manual cable sheath traction. The entire cable sheath replacement work requires fewer personnel and takes less time, reducing physical exertion. The two ends of the cable sheath are tightened by a spin-locking method, which provides a strong clamping force on the cable sheath and prevents the sheath from loosening from the clamp due to excessive friction between the cable and the sheath.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-change device for the cable sheath of an aircraft ground power vehicle, comprising:

[0007] frame;

[0008] A wire trough component, one end of which is fixedly connected to one end of a frame;

[0009] A ramp plate component, wherein the ramp plate component is fixedly connected to the other end of the wire trough component, and one end of the ramp plate component is fixedly connected to an inlet support component;

[0010] The controller is fixedly connected to the top edge of the frame;

[0011] The sheath positioning mechanism is located on the frame and ramp plate components and is used to position the two ends of the cable sheath.

[0012] An air-blowing mechanism, mounted on a frame, is used for blowing air into the cable sheath. The air-blowing mechanism includes an air inlet and an air intake pipe. The air inlet is mounted on the frame, and a cable guide plate is installed on one side of the air inlet. One end of the air intake pipe is installed on the cable guide plate and is connected to the air inlet.

[0013] A traction mechanism, mounted on a frame, is used for traction of cables. The traction mechanism includes a winch component and a rope limiting component. The winch component is fixedly connected to one side of the top of the frame, and the rope limiting component is fixedly connected to the frame.

[0014] Furthermore, the sheath positioning mechanism includes two sets of tail positioning components and a clamp, the clamp being disposed at the end of the vent, and both sets of tail positioning components being disposed on the inlet support component.

[0015] Furthermore, each of the tail positioning components includes a knob, a fixed seat, and a pressure rod. The fixed seat is installed on one edge of the outer surface of the inlet support component. The pressure rod is threadedly connected to the fixed seat. The knob is fixed to one end of the pressure rod, and the other end of the pressure rod is provided with a pressure plate.

[0016] Furthermore, two connecting blocks are fixedly connected to the top edge of the frame, and a limit hook is rotatably provided between the two connecting blocks.

[0017] Furthermore, a mounting plate is fixedly connected to the frame. The mounting plate is located between the end of the wire trough component and the rope limiting component. Two sets of first pipe clamps are symmetrically arranged on both sides of the mounting plate. The mounting plate is connected to the wire trough component through the first pipe clamps.

[0018] This utility model provides a quick-change device for the cable sheath of an aircraft ground power vehicle. It has the following beneficial effects:

[0019] (1) The cable sheath quick replacement device for the aircraft ground power vehicle adopts a modular design for the cable tray components. It is assembled through independent individual modules, which makes the device compatible with a wider range of cable sheath lengths and also reduces the transport size of the device.

[0020] (2) The aircraft ground power vehicle cable sheath quick replacement device uses high-pressure gas as the power source for cable conduit insertion and a winch as the power source for pull-back traction, avoiding the manual conduit insertion and manual cable sheath pulling links. The entire cable sheath replacement work requires fewer personnel and takes less time, reducing the physical exertion of personnel.

[0021] (3) The quick replacement device for the cable sheath of the aircraft ground power vehicle adopts a twisting locking method at both ends of the cable sheath, which has a large clamping force on the cable sheath and avoids the cable sheath from coming loose from the clamp due to excessive friction between the cable and the sheath. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a partial exploded view of one end of the present invention;

[0024] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 4 This is a partial enlarged view of the rope limiting component in this utility model;

[0026] Figure 5 This is a partial enlarged view of the winch component in this utility model;

[0027] Figure 6 This is a partial exploded view of the other end of the present invention;

[0028] Figure 7 for Figure 1 Enlarged view of point B in the middle;

[0029] Figure 8 This is a partial enlarged view of the ramp plate component in this utility model;

[0030] Figure 9 A schematic diagram of the connection structure between two wire groove components;

[0031] Figure 10 This is a schematic diagram of the structure at the end of the steel cable.

[0032] In the diagram: 1. Frame; 2. Mounting plate; 3. Cable sheath; 4. Cable trough component; 41. Cable trough; 42. Cable trough fixing rod; 43. Cable trough fixing clamp; 44. Guide groove; 5. Side plate; 6. Second pipe clamp; 7. Connector; 8. Hoop; 9. Vent; 10. First pipe clamp; 11. Air vent; 12. Rope limiting component; 121. Fixing frame; 122. Horizontal limiting roller; 123. Vertical 13. Limit roller; 14. Controller; 15. Wire guide plate; 16. Limit hook; 17. Connecting block; 18. Inclined plate component; 19. Inlet support component; 20. Pressure rod; 21. Knob; 22. Fixed base; 22. Winch component; 221. Motor; 222. Reel; 223. Clutch pressure rod; 23. Pressure plate; 25. U-shaped part; 26. Gap; 27. Steel ball; 28. Pull ring; 29. ​​Steel cable. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, 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 scope of protection of the present utility model.

[0034] Please see Figures 1-10 This utility model provides a technical solution: a quick-change device for the cable sheath of an aircraft ground power vehicle, comprising:

[0035] Framework 1;

[0036] The cable tray component 4 is fixedly connected at one end to one end of the frame 1. Specifically, the cable tray component 4 includes a cable tray 41 and cable tray fixing rods 42. Cable tray fixing rods 42 are symmetrically arranged on both sides of the cable tray 41. Multiple cable tray fixing clips 43 are provided on the cable tray fixing rods 42, and the cable tray fixing clips 43 are connected to the cable tray 41 by screws. The cable tray 41 has guide grooves 44 for placing cable sheaths 3. Multiple cable tray components 4 can be connected in series. The cable tray fixing rods 42 of adjacent cable tray components 4 are connected by connectors 7, thus enabling the device to be compatible with cable sheaths 3 of different lengths ranging from 10 to 20 meters. Each cable tray component 4 is 1.54 meters long. By combining and connecting them in series, they can be compatible with cable sheaths 3 ranging from 10 to 20 meters in length. Disassembly reduces the transport size of the device, facilitating transportation. It can be packed and loaded using three large tool storage boxes.

[0037] The ramp plate component 17 is fixedly connected to the other end of the cable tray component 4, and one end of the ramp plate component 17 is fixedly connected to the inlet support component 18. Specifically, side plates 5 are detachably connected to both sides of the ramp plate component 17, and two sets of second pipe clamps 6 are provided on the side plates 5. The side plates 5 are fixed to the cable tray fixing rod 42 by the second pipe clamps 6, and the inlet support component 18 is connected to the side plates 5 by screws.

[0038] Controller 13 is fixedly connected to the top edge of frame 1, and forward and reverse control buttons are provided on controller 13;

[0039] The sheath positioning mechanism is located on the frame 1 and the ramp plate component 17 and is used to position the two ends of the cable sheath 3.

[0040] An air blowing mechanism, mounted on frame 1, is used to blow air into the cable sheath 3. The air blowing mechanism includes an air inlet 9 and an air intake pipe 11. The air inlet 9 is mounted on frame 1, and a cable guide plate 14 is installed on one side of the air inlet 9. One end of the air intake pipe 11 is installed on the cable guide plate 14 and is connected to the air inlet 9. Specifically, the air inlet 9 is a pipe fitting, one end of which is detachably connected and fixed to the rope limiting component 12 and has the cable guide plate 14 installed thereon; the other end is a free end. One end of the air intake pipe 11 is fixed to the cable guide plate 14 and extends into the air inlet 9; the other end is connected to a high-pressure air source.

[0041] A traction mechanism, mounted on frame 1, is used for cable traction. The traction mechanism includes a winch component 22 and a rope limiting component 12. The winch component 22 is fixedly connected to the top side of frame 1, and the rope limiting component 12 is fixedly connected to frame 1. Specifically, the winch component 22 includes a motor 221 and a reel 222. The motor 221 is controlled by a controller 13 and drives the reel 222 to rotate. A clutch lever 223 is located beside the reel 222, and a limiting hook 15 is provided on frame 1 corresponding to the clutch lever 223. The rope limiting component 12 includes a fixed frame 121, on which a pair of horizontal limiting rollers 122 and a pair of vertical limiting rollers 123 are correspondingly arranged.

[0042] In this embodiment: the reel 222 is used to wind the steel cable 29, and the end of the steel cable 29 is provided with two steel balls 27 connected in series. A pull ring 28 is provided at the end of the steel ball 27. The horizontal limiting roller 122 and the vertical limiting roller 123 limit the steel cable 29 in the horizontal and vertical directions, thereby preventing the steel cable 29 from shaking up, down, left and right. 1MPa compressed air is introduced into the air pipe 11 as power to push the steel ball 27 at the end of the steel cable 29 to move along the guide groove 44 and pass through the cable sheath 3.

[0043] Specifically, the sheath positioning mechanism includes two sets of tail positioning components and a clamp 8. The clamp 10 is set at the free end of the vent 9 and is used to fix the end of the cable sheath 3 to the end of the vent 9. Both sets of tail positioning components are set on the inlet support component 18.

[0044] In this embodiment, the cable sheath 3 is connected to the vent 9 by means of a clamp 8.

[0045] Specifically, each tail positioning assembly includes a knob 20, a fixing seat 21, and a pressure rod 19. The fixing seat 21 is installed on one edge of the outer surface of the inlet support component 18. The pressure rod 19 is threadedly connected to the fixing seat 21. The knob 20 is fixed to one end of the pressure rod 19, and the other end of the pressure rod 19 is provided with a pressure plate 23. A U-shaped piece 25 is fixed between the ramp plate component 17 and the inlet support component 18. There is a gap 26 between the U-shaped piece 25 and the ramp plate component 17. The fixing seat 21 is fixed to the end of the inlet support component 18, and the pressure plate 23 is opposite to the outer wall of the U-shaped piece 25.

[0046] In this embodiment: the end of the cable sheath 3 is provided with a flange, which is folded over to the outer walls of both sides of the U-shaped part 25 through the gap 26. By rotating the knob 20, the pressure plate 23 is driven to press the flange against the outer wall of the U-shaped part 25, thereby realizing the positioning of the end of the cable sheath 3.

[0047] In this embodiment, two connecting blocks 16 are fixedly connected to the top edge of the frame 1, and a limit hook 15 is rotatably provided between the two connecting blocks 16.

[0048] Specifically: The bottom end of the limit hook 15 is rotatably connected between two connecting blocks 16. The limit hook 15 is used to limit the clutch lever 223. In the initial state, the limit hook 15 is flipped outward to the horizontal state. After the clutch lever 223 is pulled down, the limit hook 15 is flipped upward to limit the clutch lever 223 on the limit hook 15.

[0049] Specifically, a mounting plate 2 is fixedly connected to the frame 1. The mounting plate 2 is located between the end of the wire trough component 4 and the rope limiting component 12. Two sets of first pipe clamps 10 are symmetrically arranged on both sides of the mounting plate 2. The mounting plate 2 is connected to one end of the wire trough fixing rod 42 through the first pipe clamps 10.

[0050] Cable sheath replacement procedure:

[0051] Step 1: Use scissors to cut open and remove the old sheath of the cable, leaving only the cable. Place the cable end at position 17 of the ramp plate component.

[0052] Step 2: Straighten the new cable sheath and place it in the cable trough 41 of the cable trough component 4. Insert the steel ball 27 at the end of the steel cable 29 into one end of the cable sheath 3. Then use the clamp 8 to fix the end of the cable sheath 3 to the vent 9. Use scissors to cut a slit at the top and bottom of the other end of the cable sheath 3 to form two flanges on the left and right. Pass the flanges through the gap 26 and fold them over to the outer wall of the U-shaped part 25. Turn the knob 20 to drive the pressure plate 23 through the pressure rod 19 to press the flanges tightly against the outer wall of the U-shaped part 25, thereby fixing the end of the cable sheath 3.

[0053] Step 3: The operator connects the high-pressure air source to the air intake pipe 11, presses down the clutch pressing lever 223 of the winch component 22 and limits it through the limit hook 15, opens the high-pressure air source, and the high-pressure air enters the cable sheath 3 through the air intake pipe 11, pushing the steel ball 27 to move towards the ramp plate component 17. The steel cable 29 is driven by the steel ball 27 to pass through the cable sheath 3 until the steel ball 27 passes out from the other end.

[0054] Step 4: Connect the hook at the end of the steel cable to the pull ring 28 on the steel ball 27, and use cable ties to secure the cable plug to the end of the steel cable.

[0055] Step 5: Power on the winch component 22 and pull back the steel cable 29 to guide the cable through the cable sheath 3. After the cable has completely passed through the cable sheath 3, loosen the fixings at both ends of the cable sheath 3 and fix the cable sheath to the cable plug to complete the replacement of the cable sheath.

[0056] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the power ground are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0057] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-change device for the cable sheath of an aircraft ground power vehicle, characterized in that, include: Framework (1); A wire trough component (4), one end of which is fixedly connected to one end of a frame (1); The ramp plate component (17) is fixedly connected to the other end of the wire trough component (4), and one end of the ramp plate component (17) is fixedly connected to the inlet support component (18); The controller (13) is fixedly connected to the top edge of the frame (1); The sheath positioning mechanism is located on the frame (1) and the ramp plate component (17) for positioning the two ends of the cable sheath; An air blowing mechanism is provided on the frame (1) for blowing air into the cable sheath. The air blowing mechanism includes an air inlet (9) and an air duct (11). The air inlet (9) is installed on the frame (1), and a wire guide plate (14) is installed on one side of the air inlet (9). One end of the air duct (11) is installed on the wire guide plate (14), and the air duct (11) is connected to the air inlet (9). as well as A traction mechanism is provided on the frame (1) for traction of cables. The traction mechanism includes a winch component (22) and a rope limiting component (12). The winch component (22) is fixedly connected to the top side of the frame (1), and the rope limiting component (12) is fixedly connected to the frame (1).

2. The quick-change device for the cable sheath of the aircraft ground power vehicle according to claim 1, characterized in that, The sheath positioning mechanism includes two sets of tail positioning components and a clamp (8). The clamp (8) is located at the end of the vent (9), and the two sets of tail positioning components are located on the inlet support component (18).

3. The quick-change device for the cable sheath of the aircraft ground power vehicle according to claim 2, characterized in that, Each of the tail positioning components includes a knob (20), a fixed seat (21), and a pressure rod (19). The fixed seat (21) is installed on one edge of the outer surface of the inlet support component (18). The pressure rod (19) is threadedly connected to the fixed seat (21). The knob (20) is fixed to one end of the pressure rod (19), and the other end of the pressure rod (19) is provided with a pressure plate (23).

4. The quick-change device for the cable sheath of the aircraft ground power vehicle according to claim 3, characterized in that, Two connecting blocks (16) are fixedly connected to the top edge of the frame (1), and a limit hook (15) is rotatably provided between the two connecting blocks (16).

5. The quick-change device for the cable sheath of the aircraft ground power vehicle according to claim 4, characterized in that, A mounting plate (2) is fixedly connected to the frame (1). The mounting plate (2) is located between the end of the wire trough component (4) and the rope limiting component (12). Two sets of first pipe clamps (10) are symmetrically arranged on both sides of the mounting plate (2). The mounting plate (2) is connected to the wire trough component (4) through the first pipe clamps (10).

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