Helicopter cargo bridge disassembling and assembling vehicle

Abstract

The utility model relates to the technical field of disassembling and assembling trolleys, in particular to a helicopter cargo bridge disassembling and assembling trolley which comprises an I-shaped trolley body, the trolley body comprises two cross beams arranged in parallel at intervals, the middles of the two cross beams are fixedly connected through a longitudinal beam, a tow bar is installed at the front end of the trolley body, and driving installation frames are detachably installed at the four corners of the trolley body. A lifting driving device is installed on the upper portion of the driving installation frame, a tray is installed at the top power output end of the lifting driving device, and universal wheels are installed at the bottom of the driving installation frame. When a cargo bridge is disassembled and assembled, only the cargo bridge needs to be placed on the four trays, the four trays support the four corners of the cargo bridge respectively, the cargo bridge is dragged to move through the dragging rod, the four universal wheels are convenient to drag flexibly and effortlessly, the lifting driving device can drive the trays to lift, lifting of the four corners can be controlled independently, and the position is convenient to adjust. Four-point lifting does not interfere with one another, manual labor is reduced, disassembly and assembly are stable, carrying is convenient, disassembly and assembly efficiency is improved, and helicopter production switching and carrying are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembling and assembling vehicles, in particular to a helicopter cargo bridge disassembling and assembling vehicle. Background Art

[0002] The belly or tail of a transport helicopter's fuselage can be lowered to serve as a springboard for the entry and exit of personnel and cargo. The slanted flat plate is called a cargo bridge. The cargo bridge weighs more than 100 kilograms, and disassembly and installation requires one or two people to remove the latch, and at least 4 to 6 people are needed to lift it for disassembly, leaving room for two people to pull out the latch. It is difficult for 4 to 6 people to coordinate the displacement and perform stable fine movements to remove the latch. It is easy to shake, bump, and peel off paint during disassembly and installation. The disassembly and installation process is arduous, consumes physical labor, takes a long time, and is inconvenient to transport long distances to a designated location for storage. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a helicopter cargo bridge disassembly and assembly vehicle which reduces manpower labor, is stable in disassembly and assembly, is convenient for transportation, and improves disassembly and assembly efficiency.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a helicopter cargo bridge disassembly and assembly vehicle, including an I-shaped body, the body including two parallel and spaced cross beams, the middle parts of the two cross beams are fixedly connected by a longitudinal beam, a tow bar is installed at the front end of the body, and a drive mounting frame is detachably installed at the four corners of the body, a lifting drive device is installed on the upper part of the drive mounting frame, a tray is installed on the top power output end of the lifting drive device, and a universal wheel is installed at the bottom of the drive mounting frame.

[0005] As a preferred technical solution, the lifting drive device is a hydraulic jack, a single-ear seat is provided on the top of the hydraulic jack, and a double-ear seat used in conjunction with the single-ear seat is provided on the bottom of the tray, the single-ear seat and the double-ear seat are hingedly installed via a hinge shaft, and the extension direction of the hinge shaft is parallel to the front and rear extension direction of the vehicle body.

[0006] As a preferred technical solution, the drive mounting frame is slidably mounted on the crossbeam, the drive mounting frame is provided with a first mounting through hole, the crossbeam is provided with a plurality of first positioning holes used in conjunction with the first mounting through hole, and a first positioning pin is provided through the first mounting through hole and the first positioning hole.

[0007] As a preferred technical solution, a reinforcing beam mounting seat is fixedly installed on the bottom of the pallet, and a reinforcing beam is detachably connected between two of the reinforcing beam mounting seats located on the same cross beam. A second mounting through hole is provided on the reinforcing beam mounting seat, and a plurality of second positioning holes for use with the second mounting through hole are provided at both ends of the reinforcing beam. A second positioning pin is provided through the second mounting through hole and the second positioning hole, and the spacing between adjacent second positioning holes is equal to the spacing between adjacent first positioning holes.

[0008] As a preferred technical solution, one or more rubber strips are installed on the upper surface of the tray.

[0009] As a preferred technical solution, a rubber protection block is installed at the end of the upper surface of the tray, and an arc-shaped lifting surface is provided on the rubber protection block.

[0010] As a preferred technical solution, the cross beam and the longitudinal beam are both aluminum alloy beams.

[0011] As a preferred technical solution, the tow bar includes a movable bar and a fixed bar, the fixed bar is V-shaped, the fixed bar is fixedly connected to the cross beam at the front end of the vehicle body, the fixed bar and the movable bar are connected by a universal joint, and a handle is provided at the end of the movable bar.

[0012] Due to the adoption of the above technical scheme, the helicopter cargo bridge disassembly and assembly vehicle includes an I-shaped body, the body includes two parallel and spaced cross beams, the middle parts of the two cross beams are fixedly connected by a longitudinal beam, a tow bar is installed at the front end of the body, and a drive mounting frame is detachably installed at the four corners of the body, a lifting drive device is installed on the upper part of the drive mounting frame, a pallet is installed on the top power output end of the lifting drive device, and a universal wheel is installed on the bottom of the drive mounting frame; the beneficial effects of the utility model are: when disassembling and assembling the cargo bridge, it is only necessary to place the cargo bridge on four pallets, and the four pallets respectively support the four corners of the cargo bridge, and the utility model is moved by dragging the tow bar, and the four universal wheels are convenient for dragging, flexible and labor-saving, and the lifting drive device can drive the pallet to rise and fall, which is convenient for controlling the lifting and falling of the four corners separately, and the position is convenient to adjust. The four points are lifted and lowered separately without interfering with each other, which reduces manual labor, stabilizes disassembly and assembly, facilitates transportation, improves disassembly and assembly efficiency, and facilitates helicopter conversion and carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0014] Figure 1 This is one of the structural schematic diagrams of the utility model helicopter cargo bridge disassembly and assembly vehicle;

[0015] Figure 2 yes Figure 1 A partial enlarged view of point I in the middle;

[0016] Figure 3 This is the second structural schematic diagram of the utility model helicopter cargo bridge disassembly and assembly vehicle;

[0017] Figure 4 This is the third structural schematic diagram of the utility model helicopter cargo bridge disassembly and assembly vehicle;

[0018] Figure 5 This is the fourth structural schematic diagram of the utility model helicopter cargo bridge disassembly and assembly vehicle;

[0019] Figure 6 This is the fifth structural schematic diagram of the utility model helicopter cargo bridge disassembly and assembly vehicle;

[0020] Figure 7 This is one of the partial structural schematic diagrams of the utility model helicopter cargo bridge disassembly and assembly vehicle;

[0021] Figure 8 This is the second partial structural schematic diagram of the utility model helicopter cargo bridge disassembly and assembly vehicle;

[0022] Fig. 9 This is one of the use status diagrams of the utility model helicopter cargo bridge disassembly and assembly vehicle;

[0023] Fig.10 It is the second use state diagram of the helicopter cargo bridge disassembly and assembly vehicle of the utility model.

[0024] In the figure: 1-crossbeam; 11-first positioning hole; 2-longitudinal beam; 3-tow rod; 31-moving rod; 32-fixing rod; 33-universal joint; 34-handle; 4-drive mounting frame; 41-first mounting through hole; 42 first positioning pin; 5-hydraulic jack; 51-single ear seat; 6-tray; 61-double ear seat; 62-rubber strip; 63-rubber protection block; 64-arc-shaped lifting surface; 7-reinforcement beam mounting seat; 71-second mounting through hole; 72-second positioning pin; 8-reinforcement beam; 81-second positioning hole; 9-universal wheel; 10-articulated shaft; 20-cargo bridge. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0026] like Figures 1 to 10As shown in common, the helicopter cargo bridge disassembly and assembly vehicle includes an I-shaped body, the body includes two parallel and spaced cross beams 1, the middle parts of the two cross beams 1 are fixedly connected by a longitudinal beam 2, a tow bar 3 is installed at the front end of the body, and a drive mounting frame 4 is detachably installed at the four corners of the body, a lifting drive device is installed on the upper part of the drive mounting frame 4, a tray 6 is installed on the top power output end of the lifting drive device, and a universal wheel 9 is installed at the bottom of the drive mounting frame 4; the beneficial effects of the utility model are: when disassembling and assembling the cargo bridge 20, it is only necessary to place the cargo bridge 20 on four trays 6, and the four trays 6 respectively support the four corners of the cargo bridge 20, and the utility model is dragged by the tow bar 3 for displacement, and the four universal wheels 9 are convenient for flexible and labor-saving dragging, and the lifting drive device can drive the tray 6 to rise and fall, which is convenient for the four corners to control the lifting and falling separately, and the position can be adjusted conveniently. The four points are lifted and lowered separately without interfering with each other, which reduces manual labor, stabilizes disassembly and assembly, facilitates transportation, improves disassembly and assembly efficiency, and facilitates helicopter conversion and carrying.

[0027] like Figure 7 As shown, the lifting drive device is a hydraulic jack 5, a single-ear seat 51 is provided on the top of the hydraulic jack 5, and a double-ear seat 61 used in conjunction with the single-ear seat 51 is provided on the bottom of the pallet 6. The single-ear seat 51 and the double-ear seat 61 are hingedly installed through a hinge shaft 10, and the extension direction of the hinge shaft 10 is parallel to the front-rear extension direction of the vehicle body. The single-ear seat 51 is located in the middle of the double-ear seat 61, and the hinge shaft 10 passes through the installation holes of the single-ear seat 51 and the double-ear seat 61. When the hydraulic jack 5 is ejected upward, it will push the single-ear seat 51, the double-ear seat 61 and the pallet 6 to move upward together. When the other three hydraulic jacks 5 are not ejected, the ejected pallet 6 rotates and tilts at a certain angle with the hinge shaft 10 to match the position of the other pallets 6. Therefore, with the existence of the hinge shaft 10, the four hydraulic jacks 5 can be controlled separately, and the height of the pallet 6 can be adjusted separately, which is convenient for the disassembly and assembly of the cargo bridge 20.

[0028] like Figures 1 to 8 As shown together, the drive mounting frame 4 is slidably mounted on the crossbeam 1, the drive mounting frame 4 is provided with a first mounting through hole 41, the crossbeam 1 is provided with a plurality of first positioning holes 11 used in conjunction with the first mounting through holes 41, and a first positioning pin 42 is provided through the first mounting through holes 41 and the first positioning holes 11. The utility model can be adaptively adjusted according to the width of the cargo bridge 20, and different first positioning holes 11 are selected to cooperate with the first mounting holes, so as to adjust the distance between the two pallets 6 at both ends of the same crossbeam 1, thereby adapting to cargo bridges 20 of different widths.

[0029] like Figures 1 to 8As shown together, a reinforcing beam mounting seat 7 is fixedly installed at the bottom of the pallet 6, and a reinforcing beam 8 is detachably connected between the two reinforcing beam mounting seats 7 located on the same cross beam 1. A second mounting through hole 71 is provided on the reinforcing beam mounting seat 7, and a plurality of second positioning holes 81 used in conjunction with the second mounting through holes 71 are provided at both ends of the reinforcing beam 8. A second positioning pin 72 is provided through the second mounting through hole 71 and the second positioning hole 81, and the spacing between adjacent second positioning holes 81 is equal to the spacing between adjacent first positioning holes 11. By selecting different second positioning holes 81 to cooperate with the second mounting holes, the spacing between the two pallets 6 at both ends of the same cross beam 1 can be adjusted, thereby adapting to cargo bridges 20 of different widths. The cooperation between the second positioning hole 81 and the second mounting hole is determined based on the cooperation between the first positioning hole 11 and the first mounting hole. Because the cross beam 1 and the reinforcing beam 8 extend to both ends at the same time to ensure that the hydraulic cylinder is always in a vertical state, the expansion of the cross beam 1 and the reinforcing beam 8 must be carried out simultaneously.

[0030] like Figure 1 and Figure 2 As shown in the figure, at least one rubber strip 62 is installed on the upper surface of the pallet 6. Multiple rubber strips 62 can be provided. In this embodiment, three rubber strips 62 are provided for each pallet 6. The rubber strips 62 can ensure that the pallet 6 does not directly contact the cargo bridge 20 during disassembly or transportation, causing friction, bumping, damage or paint peeling of the cargo bridge 20.

[0031] like Figure 2 As shown, a rubber protection block 63 is installed at the end of the upper surface of the tray 6, and an arc-shaped lifting surface 64 is provided on the rubber protection block 63. The rubber protection block 63 protects the cargo bridge 20 of the aircraft from falling due to misoperation of the maintenance personnel during disassembly and assembly, and prevents the aircraft cargo bridge 20 from sliding and falling due to bumps or large slopes during transportation. The arc-shaped lifting surface 64 can better contact with the edge of the cargo bridge 20, ensuring a more stable clamping.

[0032] Both the cross beam 1 and the longitudinal beam 2 are aluminum alloy beams. The aluminum alloy material is light in weight and convenient for transportation and helicopter transfer and carrying.

[0033] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown in the figure, the towing rod 3 includes a moving rod 31 and a fixed rod 32. The fixed rod 32 is V-shaped and fixedly connected to the cross beam 1 at the front end of the vehicle body. The fixed rod 32 and the moving rod 31 are connected by a universal joint 33. A handle 34 is provided at the end of the moving rod 31. The V-shaped structure of the fixed rod 32 is convenient for fixing with the cross beam 1 at two points, which is more firm. The universal joint 33 makes the moving rod 31 easy to control and easy to tow.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Helicopter cargo bridge disassembly and assembly vehicle, characterized by: The vehicle comprises an I-shaped body, the body comprising two cross beams (1) arranged in parallel and spaced apart, the middle parts of the two cross beams (1) being fixedly connected via a longitudinal beam (2), a towing rod (3) being mounted at the front end of the body, a drive mounting frame (4) being detachably mounted at the four corners of the body, a lifting drive device being mounted on the top of the drive mounting frame (4), a tray (6) being mounted on the top power output end of the lifting drive device, and a universal wheel (9) being mounted on the bottom of the drive mounting frame (4).

2. The helicopter cargo bridge disassembly and assembly vehicle according to claim 1, characterized in that: The lifting drive device is a hydraulic jack (5), the top of the hydraulic jack (5) is provided with a single-ear seat (51), the bottom of the tray (6) is provided with a double-ear seat (61) used in conjunction with the single-ear seat (51), the single-ear seat (51) and the double-ear seat (61) are hingedly mounted via a hinge shaft (10), and the extension direction of the hinge shaft (10) is parallel to the front-rear extension direction of the vehicle body.

3. The helicopter cargo bridge disassembly and assembly vehicle according to claim 1, characterized in that: The drive mounting frame (4) is slidably mounted on the crossbeam (1); a first mounting through hole (41) is provided on the drive mounting frame (4); a plurality of first positioning holes (11) for use with the first mounting through hole (41) are provided on the crossbeam (1); and a first positioning pin (42) is provided through the first mounting through hole (41) and the first positioning hole (11).

4. The helicopter cargo bridge disassembly and assembly vehicle as claimed in claim 3, characterized in that: A reinforcing beam mounting seat (7) is fixedly mounted on the bottom of the tray (6); a reinforcing beam (8) is detachably connected between two reinforcing beam mounting seats (7) located on the same cross beam (1); a second mounting through hole (71) is provided on the reinforcing beam mounting seat (7); a plurality of second positioning holes (81) for use with the second mounting through holes (71) are provided at both ends of the reinforcing beam (8); a second positioning pin (72) is provided through the second mounting through holes (71) and the second positioning holes (81); and the spacing between adjacent second positioning holes (81) is equal to the spacing between adjacent first positioning holes (11).

5. The helicopter cargo bridge disassembly and assembly vehicle according to claim 1, characterized in that: One or more rubber strips (62) are installed on the upper surface of the tray (6).

6. The helicopter cargo bridge disassembly and assembly vehicle according to claim 1, characterized in that: A rubber protection block (63) is installed at the end of the upper surface of the tray (6), and an arc-shaped lifting surface (64) is provided on the rubber protection block (63).

7. The helicopter cargo bridge disassembly and assembly vehicle according to claim 1, characterized in that: The cross beam (1) and the longitudinal beam (2) are both aluminum alloy beams.

8. The helicopter cargo bridge disassembly and assembly vehicle according to any one of claims 1 to 7, characterized in that: The towing rod (3) comprises a moving rod (31) and a fixed rod (32); the fixed rod (32) is V-shaped and fixedly connected to the crossbeam (1) at the front end of the vehicle body; the fixed rod (32) and the moving rod (31) are connected via a universal joint (33); and a handle (34) is provided at the end of the moving rod (31).

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