Lightweight cargo hold door wooden support platform for helicopter maintenance

Abstract

The utility model discloses a lightweight cargo hold door wooden support platform for helicopter maintenance, and particularly relates to the technical field of helicopter component maintenance, the cargo hold door wooden support platform comprises a bottom frame, a plurality of brake wheels are arranged at the bottom of the bottom frame, two reinforcing rods are welded in the bottom frame, and four pieces of supporting steel are arranged at the top of the bottom frame. Wherein the top ends of every two pieces of supporting steel are jointly provided with a concave plate, the top of each concave plate is provided with a bracket, and the joint of each concave plate and the corresponding supporting steel is provided with an adjusting structure. When the helicopter is overhauled, the cargo hold door component of the helicopter can be supported, the supporting effect is good, the height can be adjusted according to the actual situation, an operator can conveniently carry out overhauling operation, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of helicopter component maintenance, and more specifically, to a lightweight helicopter maintenance cargo door wooden support platform. Background Art

[0002] A lightweight helicopter is a type of helicopter, which is an aircraft that relies on the engine to drive the rotor to generate lift and control torque, and can achieve vertical take-off and landing. The cargo door in a helicopter is one of the important components of a helicopter. When inspecting the cargo door of a helicopter, a wooden support platform is required to support the cargo door to facilitate maintenance operations by maintenance personnel.

[0003] After searching, the Chinese patent with publication number CN217578202U discloses a lifting platform for aircraft parts maintenance. The structure can realize height adjustment and is suitable for the maintenance of aircraft parts at different heights. The device is a detachable structure as a whole, which can be disassembled and stored when not in use, which can reduce space occupancy.

[0004] However, when the structure is actually used, the entire lifting platform is lifted and lowered by lifting a plurality of legs. However, the lifting of a plurality of legs can only enable the lifting platform to achieve horizontal lifting operations. It is difficult to adjust the tilt of the platform according to actual conditions, and the scope of use is not wide. In view of this, the utility model proposes a lightweight wooden support platform for cargo door of helicopter maintenance. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a lightweight helicopter cargo door wooden support platform for maintenance to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lightweight wooden support platform for helicopter cargo door maintenance, comprising a base frame, a plurality of brake wheels are arranged at the bottom of the base frame, the base frame is a rectangular structure formed by splicing a plurality of steel sections, the plurality of brake wheels are mounted on the bottom of the base frame by screws, two reinforcing rods are welded inside the base frame, four supporting steels are arranged on the top of the base frame, a concave plate is installed on the top of every two supporting steels, and a bracket is arranged on the top of the concave plate.

[0007] It can be seen that in the above structure, several brake wheels at the bottom of the chassis can be used to move the platform, which is convenient for moving when inspecting the cargo door of the helicopter. Four supporting steels can be used to support the bracket, which can facilitate the placement of the cargo door on the bracket, providing convenience for maintenance personnel.

[0008] In order to realize the installation and disassembly of the bracket and facilitate the replacement of different brackets according to the maintenance of different parts of the helicopter, preferably, the upper surface of the bracket is an arc-shaped structure, the lower surface of the bracket is engaged with the inside of the concave plate, and a plurality of threaded holes are provided at the connection between the bracket and the concave plate, and bolts are threadedly installed inside the plurality of threaded holes.

[0009] In order to improve the stability of the base frame support, preferably, the outer wall of the base frame is provided with four supporting structures, wherein the supporting structure includes a threaded sleeve, the threaded sleeve is fixedly installed on the outer wall of the base frame, a screw is provided inside the threaded sleeve, an adjusting disk is provided at the top end of the screw, and a supporting disk is provided at the bottom end of the screw, the screw is threadedly connected inside the threaded sleeve, and an anti-slip rubber pad is provided at the bottom of the support disk.

[0010] In order to adjust the height of the two brackets according to actual conditions and facilitate maintenance operations by operators, preferably, an adjustment structure is provided at the connection between the concave plate and the support steel, and the adjustment structure includes a guide rod, which is installed inside one of the support steels, and two support plates are provided on the outer wall of the other support steel, and a screw rod is provided between the two support plates, and a threaded block and a guide block are provided on the outside of the screw rod and the guide rod, respectively, and two movable plates are provided at the bottom of the concave plate, and an adjustment block is provided at the bottom end of the screw rod, the guide block is slidably installed on the outside of the guide rod, and the threaded block is threadedly installed on the outside of the screw rod, and the guide block and the threaded block are fixedly installed on the side walls of the movable plate, respectively.

[0011] Technical effects and advantages of the utility model:

[0012] 1. By setting up the adjustment structure, the screw rod is rotated between the two support plates, so that the threaded block moves up and down along the inner wall of the support steel, and under the sliding guide cooperation of the guide block and the guide rod, the two movable plates drive the corresponding concave plates to extend up and down, and then drive the two brackets to extend up or down, so as to achieve the up and down adjustment effect of the bracket. Moreover, through the different heights of the two brackets, the cargo hold door can be placed in an inclined state according to the situation during maintenance, and the operation range is wide;

[0013] 2. By setting up the support structure, the adjusting plate allows the screw to rotate in the internal thread of the threaded sleeve, thereby driving the support plate to extend downward so that the support plate fits on the ground, thereby ensuring the stability of the chassis when in use;

[0014] 3. By clamping the bracket inside the concave plate and installing the bracket and the concave plate through bolts, it is convenient for operators to repair different parts of the helicopter and replace different bracket structures to improve the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a three-dimensional schematic diagram of the support structure of the utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure between the concave plate and the supporting steel of the utility model.

[0018] Figure 4 It is a schematic diagram of the connection structure of the movable plate and the concave plate of the utility model.

[0019] Figure 5 It is a side view of the utility model.

[0020] The accompanying drawings are marked as follows: 1. chassis; 2. brake wheel; 3. reinforcement rod; 4. support steel; 5. concave plate; 6. bracket; 7. bolt; 8. threaded sleeve; 9. screw; 10. adjustment plate; 11. support plate; 12. non-slip rubber pad; 13. guide rod; 14. support plate; 15. screw rod; 16. threaded block; 17. guide block; 18. movable plate; 19. adjustment block. DETAILED DESCRIPTION

[0021] 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.

[0022] As attached Figure 1-5 A lightweight wooden support platform for helicopter cargo door maintenance is shown, including a base frame 1, a plurality of brake wheels 2 are arranged at the bottom of the base frame 1, the base frame 1 is a rectangular structure formed by splicing a plurality of steel sections, the plurality of brake wheels 2 are mounted on the bottom of the base frame 1 by screws, two reinforcing rods 3 are welded inside the base frame 1, four supporting steels 4 are arranged on the top of the base frame 1, wherein a concave plate 5 is installed together at the top of every two supporting steels 4, and a bracket 6 is arranged on the top of the concave plate 5.

[0023] Specifically, in this structure, several brake wheels 2 at the bottom of the base frame 1 can be used to move the platform, which is convenient for moving when inspecting the cargo door of the helicopter. Four supporting steels 4 can be used to support the bracket 6, so that the cargo door can be conveniently placed on the bracket 6, providing convenience for maintenance personnel to perform maintenance.

[0024] In a specific embodiment, as shown in the attached Figure 1 , 3As shown in , 4 and 5, the upper surface of the bracket 6 is an arc-shaped structure, and the lower surface of the bracket 6 is engaged in the inside of the concave plate 5. A plurality of threaded holes are provided at the connection between the bracket 6 and the concave plate 5, and bolts 7 are threadedly installed inside the plurality of threaded holes.

[0025] Specifically, in this structure, the bracket 6 can be engaged inside the concave plate 5, and the installation between the bracket 6 and the concave plate 5 is achieved by bolts 7. At the same time, it is convenient for operators to replace different bracket 6 structures according to different components of the helicopter.

[0026] In a specific embodiment, as shown in the attached Figure 1 , 2 As shown, four supporting structures are provided on the outer wall of the base frame 1, wherein the supporting structure includes a threaded sleeve 8, which is fixedly installed on the outer wall of the base frame 1, a screw 9 is provided inside the threaded sleeve 8, an adjusting disk 10 is provided on the top of the screw 9, and a supporting disk 11 is provided on the bottom end of the screw 9, the screw 9 is threadedly connected inside the threaded sleeve 8, and a non-slip rubber pad 12 is provided on the bottom of the support disk 11.

[0027] Specifically, in this structure, it can be used to provide a good supporting effect on the pallet. Specifically, when the base frame 1 moves through several brake wheels 2 at the bottom, in order to ensure the stability of the base frame 1, the operator rotates the adjusting disk 10 to make the screw 9 rotate in the internal thread of the threaded sleeve 8, thereby driving the support disk 11 to extend downward so that the support plate 14 is in contact with the ground, thereby ensuring the stability of the base frame 1 when in use.

[0028] In a specific embodiment, as shown in the attached Figure 1 , 3 As shown in , 4, an adjustment structure is provided at the connection between the concave plate 5 and the support steel 4, and the adjustment structure includes a guide rod 13, the guide rod 13 is installed inside one of the support steels 4, and two support plates 14 are provided on the outer wall of the other support steel 4, a screw rod 15 is provided between the two support plates 14, and a threaded block 16 and a guide block 17 are provided on the outside of the screw rod 15 and the guide rod 13, respectively. Two movable plates 18 are provided at the bottom of the concave plate 5, and an adjustment block 19 is provided at the bottom end of the screw rod 15, the guide block 17 is slidably installed on the outside of the guide rod 13, and the threaded block 16 is threadedly installed on the outside of the screw rod 15, and the guide block 17 and the threaded block 16 are fixedly installed on the side walls of the movable plate 18, respectively.

[0029] Specifically, in this structure, the adjustment structure can be used to adjust the overall height of the bracket 6 according to the situation, and then the height of the cargo door placed on the bracket 6 can be adjusted, which is convenient for maintenance personnel to perform maintenance operations. Specifically, the operator rotates the adjustment block 19 to make the screw rod 15 rotate between the two support plates 14. During the rotation of the screw rod 15, the threaded block 16 will be driven to move up and down along the inner wall of the support steel 4. In addition, under the sliding guide cooperation of the guide block 17 and the guide rod 13, the two movable plates 18 drive the corresponding concave plates 5 to extend up and down, thereby driving the two brackets 6 to extend upward or downward, so as to achieve the up and down adjustment effect of the bracket 6;

[0030] At the same time, the operator can adjust the different heights of the two brackets 6 so that the cargo door is placed in an inclined state during maintenance, with a wide operating range.

[0031] Working principle of this utility model:

[0032] When the above structure is used, first, the operator moves the platform through the brake wheel 2 at the bottom of the chassis 1, and the support plate 11 supports the ground through the support structure to ensure the stability of the platform;

[0033] The cargo door for helicopter maintenance is placed on two brackets 6 arranged in an arc shape. According to the actual situation, the height of the two brackets 6 can be adjusted by moving the threaded block 16 and the guide block 17 up and down. Moreover, by adjusting the high and low settings of the two brackets 6, the cargo door can be tilted during maintenance support, thereby increasing the scope of use and facilitating the operation of the operator.

[0034] The bracket 6 and the concave plate 5 can be removed and installed by bolts 7, so that different types of brackets 6 can be replaced conveniently according to different maintenance parts of the helicopter.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lightweight helicopter cargo door wooden support platform for maintenance, comprising a base frame (1), characterized in that: A plurality of brake wheels (2) are arranged at the bottom of the base frame (1), two reinforcing rods (3) are welded inside the base frame (1), four supporting steels (4) are arranged at the top of the base frame (1), wherein a concave plate (5) is installed on the top of every two supporting steels (4), a bracket (6) is arranged on the top of the concave plate (5), and an adjustment structure is arranged at the connection between the concave plate (5) and the supporting steel (4).

2. A lightweight helicopter maintenance cargo door wooden support platform according to claim 1, characterized in that: The base frame (1) is a rectangular structure formed by splicing a plurality of steel sections, and a plurality of brake wheels (2) are mounted on the bottom of the base frame (1) by means of screws.

3. The lightweight helicopter cargo door wooden support platform for maintenance according to claim 1 is characterized by: The upper surface of the bracket (6) is an arc-shaped structure, and the lower surface of the bracket (6) is engaged with the inside of the concave plate (5). A plurality of threaded holes are provided at the connection between the bracket (6) and the concave plate (5), and bolts (7) are threadedly installed inside the plurality of threaded holes.

4. The lightweight helicopter cargo door wooden support platform for maintenance according to claim 1 is characterized by: The outer wall of the base frame (1) is provided with four supporting structures, wherein the supporting structure comprises a threaded sleeve (8), the threaded sleeve (8) is fixedly mounted on the outer wall of the base frame (1), a screw rod (9) is arranged inside the threaded sleeve (8), an adjusting disk (10) is arranged at the top end of the screw rod (9), and a supporting disk (11) is arranged at the bottom end of the screw rod (9).

5. A lightweight helicopter cargo door wooden support platform for maintenance according to claim 4, characterized in that: The screw rod (9) is threadedly connected to the inside of the threaded sleeve (8), and a non-slip rubber pad (12) is provided at the bottom of the support plate (11).

6. The lightweight helicopter maintenance cargo door wooden support platform according to claim 1, characterized in that: The adjustment structure comprises a guide rod (13), wherein the guide rod (13) is installed inside one of the support steels (4), and the outer wall of the other support steel (4) is provided with two support plates (14), a screw rod (15) is provided between the two support plates (14), and the outsides of the screw rod (15) and the guide rod (13) are respectively provided with a threaded block (16) and a guide block (17), the bottom of the concave plate (5) is provided with two movable plates (18), and the bottom end of the screw rod (15) is provided with an adjustment block (19).

7. A lightweight helicopter maintenance cargo door wooden support platform according to claim 6, characterized in that: The guide block (17) is slidably mounted on the outside of the guide rod (13), the threaded block (16) is threadedly mounted on the outside of the screw rod (15), and the guide block (17) and the threaded block (16) are respectively fixedly mounted on the side walls of the movable plate (18).

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