Working ladder for oil injection of undercarriage

Abstract

The utility model provides a working ladder for oil injection of an undercarriage, and belongs to the technical field of aviation equipment. Comprising a ladder assembly body which is movably placed on the ground, and a main ladder is arranged on one side of the ladder assembly body; the operating frame is arranged above the ladder frame main body, and a standing platform for allowing a worker to stand is arranged on the operating frame; the horizontal moving assembly is used for driving the people standing platform to horizontally and linearly slide relative to the ladder assembly main body; the lifting assembly is used for driving the person standing platform to vertically ascend and descend relative to the ladder assembly body, and the supporting assembly is used for supporting the ladder assembly body on the ground. When a worker stands on the standing platform, the second connecting frame can be driven to horizontally slide through the rocker on the second connecting frame, so that the worker can conveniently perform oil injection operation on the oil injection holes in different positions of the starting frame without frequently moving a working body, and the effect of improving the oil injection efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation equipment, in particular to a working ladder for oiling a landing gear. Background Art

[0002] With the rapid development of my country's aviation industry, the requirements for the structure, control and safety of aircraft maintenance tools (especially aircraft maintenance work ladders) are becoming increasingly higher.

[0003] The aircraft landing gear is composed of many complex rotating support arms and hydraulic telescopic cylinders. During the aircraft maintenance process, it is necessary to inject lubricating grease into the components at various positions of the aircraft landing gear. In the traditional oiling work, the workers need to stand on the lifting vehicle, which will lift the workers to the oiling operation height.

[0004] The oiling points on the landing gear that need to be oiled are distributed at different positions on the bottom of the aircraft, requiring workers to frequently raise and lower the aerial platform and move the aerial platform before continuing, making the oiling operation inefficient. Utility Model Content

[0005] In view of the above problems, the utility model provides a working ladder for oiling a landing gear.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0007] Provided is a working ladder for oiling a landing gear, comprising:

[0008] The ladder frame body is movably placed on the ground, and a main step is arranged on one side of the ladder frame body;

[0009] An operating frame is arranged above the ladder frame body, and a standing platform for workers to stand is arranged on the operating frame;

[0010] The horizontal moving assembly is used to drive the standing platform to slide horizontally and linearly relative to the ladder frame body;

[0011] The lifting assembly is used to drive the standing platform to rise and fall vertically relative to the ladder frame body.

[0012] The support assembly is used to support the ladder frame body on the ground.

[0013] Furthermore, the operating frame includes a first connecting frame and a second connecting frame, the first connecting frame is connected to the ladder frame body, and the second connecting frame is horizontally slidably connected above the first connecting frame;

[0014] The horizontal moving assembly includes a screw rod and a connecting sleeve. The connecting sleeve is fixedly arranged on the first connecting frame. The screw rod is slidingly arranged on the second connecting frame parallel to the second connecting frame. Both ends of the screw rod are rotatably connected to the second connecting frame. A crank handle connected to the screw rod is rotatably arranged on the second connecting frame.

[0015] Furthermore, the lifting assembly includes a first piston cylinder and two frames, the middle parts of the two frames are hinged to each other, one end of the two frames are hinged to the first connecting frame and the ladder frame body respectively, the other ends of the two frames are horizontally slidably connected to the ladder frame body and the first connecting frame respectively, and the cylinder body and piston rod of the first piston cylinder are hinged to the ladder frame body and one frame respectively.

[0016] Furthermore, a plurality of rollers are arranged at the bottom of the ladder frame body, and the support assembly includes a plurality of sets of screw rods, support plates and handles. The screw rods are vertically and threadedly connected to the ladder frame body, the support plates are fixedly arranged at the bottom end of the screw rods for contacting the ground, and the handles are fixedly arranged at the top end of the screw rods.

[0017] Furthermore, an extended step is fixedly provided on one side edge of the first connecting frame close to the main step, and when the first connecting frame rises, the extended step is continuous with the main step.

[0018] Furthermore, a guardrail is detachably connected to the edge of the second connecting frame located on the standing platform.

[0019] Furthermore, a counterweight platform for placing a counterweight block is provided on the ladder frame body.

[0020] The beneficial effects of the utility model are as follows: by arranging a first connecting frame for lifting on the ladder frame main body, and installing a second connecting frame on the first connecting frame for horizontal sliding, when a worker stands on the standing platform, the second connecting frame can be driven to slide horizontally through the rocker on the second connecting frame, so that the worker can conveniently perform oil filling operations on the oil filling holes at different positions on the starting frame without frequently moving the working body, thereby improving the oil filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the working ladder of an embodiment of the present application.

[0022] Figure 2 This is a schematic structural diagram of the working ladder from another perspective of an embodiment of the present application.

[0023] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A.

[0024] Figure 4 It is a partial cross-sectional schematic diagram of the detachable structure of the guardrail according to an embodiment of the present application.

[0025] Among them, 1. ladder frame body; 11. main step; 12. roller; 13. counterweight platform; 2. first connecting frame; 21. extension step; 3. second connecting frame; 41. screw rod; 42. crank handle; 51. first piston cylinder; 52. rack; 61. screw rod; 62. support plate; 63. handle; 7. guardrail; 71. locking bolt; 72. limit groove; 73. connecting sleeve. DETAILED DESCRIPTION

[0026] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] The present application embodiment discloses a landing gear oil filling working ladder, referring to Figure 1 , Figure 2 and Figure 3 , including a ladder frame body 1 and an operating frame. Rollers 12 are installed at the four corners of the bottom of the ladder frame body 1. The ladder frame body 1 is movably placed on the ground through the rollers 12. The ladder frame body 1 is provided with a supporting assembly for supporting the ladder frame body 1 on the ground. The operating frame is located above the ladder frame body 1. The operating frame is provided with a standing platform for workers to stand. A main ladder 11 is provided on one side of the ladder frame body 1. The main ladder 11 extends upward to the top of the ladder frame body 1. Workers can climb to the standing platform on the ladder frame body 1 through the main ladder 11. A lifting assembly is provided on the ladder frame body 1 for driving the operating frame and the standing platform to rise and fall vertically relative to the ladder frame body 1. A horizontal moving assembly is provided on the operating frame for driving the standing platform to slide horizontally and linearly relative to the ladder frame body 1.

[0028] Specifically, the support assembly includes multiple groups of screw rods 61, support plates 62 and handles 63. The screw rods 61 are arranged vertically. A plurality of screw rod 61 sleeves corresponding to the screw rods 61 are fixed to the bottom of the ladder frame body 1 by welding. The screw rods 61 are inserted into the screw rod 61 sleeves and the two are threadedly connected. The support plates 62 are integrally fixed to the bottom end of the screw rods 61, and the handles 63 are coaxially fixed to the top end of the screw rods 61. By rotating the handles 63, the screw rods 61 can be vertically raised and lowered relative to the ladder frame body 1, so that the ladder frame body 1 is lifted on the ground by the support plates 62, and the movement of the ladder frame body 1 on the ground is restricted.

[0029] The operating frame specifically includes a first connecting frame 2 and a second connecting frame 3. The first connecting frame 2 is connected to the ladder frame body 1 through a lifting assembly. The second connecting frame 3 is horizontally slidably installed on the first connecting frame 2, and the standing platform is arranged on the second connecting frame 3. The lifting assembly includes a first piston cylinder 51 and two racks 52. The middle parts of the two racks 52 are hinged to each other. One end of the two racks 52 is hinged to the first connecting frame 2 and the ladder frame body 1 respectively. The other ends of the two racks 52 are horizontally slidably connected to the ladder frame body 1 and the first connecting frame 2 respectively. The cylinder body and piston rod of the first piston cylinder 51 are hinged to the ladder frame body 1 and one rack 52 respectively.

[0030] The horizontal movement assembly includes a screw rod 41 and a connecting sleeve. A track is provided on the first connecting frame 2 along the width direction of the standing platform. The second connecting frame 3 is slidably mounted on the track. The connecting sleeve is fixedly mounted on the first connecting frame 2. The screw rod 41 is arranged parallel to the track. Both ends of the screw rod 41 are rotatably connected to the second connecting frame 3. A transmission rod is vertically and rotatably mounted on the second connecting frame 3 on one side of the standing platform. The bottom end of the transmission rod is transmission-connected to the screw rod 41 through a bevel gear, and a crank 42 is fixedly mounted on the top of the transmission rod. By rotating the crank 42 on the standing platform, the screw rod 41 can be driven to rotate. By cooperating with the screw rod 41 and the connecting sleeve, the second connecting frame 3 can slide horizontally on the first connecting frame 2.

[0031] With this design, when the staff standing on the standing platform is filling oil on the parts of the landing gear, they can turn the crank 42 to drive the second connecting frame 3 to move horizontally, so that the staff on the standing platform can fill oil to a wider range of oil filling holes, thereby improving the efficiency of filling oil on the landing gear.

[0032] Further, an extension step 21 is fixedly provided on the edge of the first connecting frame 2 near the main step 11. When the first connecting frame 2 rises, the extension step 21 is continuous with the main step 11. When the first connecting frame 2 rises, the staff can also enter and exit the platform through the extension step 21, thereby improving work efficiency.

[0033] A counterweight platform 13 is also provided on the ladder frame body 1, and the counterweight platform 13 is close to the bottom of the ladder frame body 1. The counterweight platform 13 is used to place a counterweight block, which can be a metal block or a concrete block, etc. The counterweight block can increase the weight of the lower half of the ladder frame body 1, so that the second connecting frame 3 can keep the overall stability of the working ladder during the horizontal movement.

[0034] Reference Figure 4Furthermore, a guardrail 7 is detachably mounted on the edge of the standing platform on the second connecting frame 3. The use of a detachable guardrail 7 allows the staff to choose to appropriately dismantle the guardrail 7 according to the environmental conditions of the specific maintenance and oiling position. Specifically, the guardrail 7 is composed of two sub-rail bodies, and the ends of the upper parts of the two sub-rail bodies that face each other can be plugged into each other. A connecting sleeve 73 for installing the guardrail 7 is welded and fixed on the edge of the second connecting frame 3, and a plug-in portion adapted to the connecting sleeve 73 is provided at the lower part of the sub-rail body, and a threaded hole is provided outside the connecting sleeve 73 to penetrate into it. After the plug-in portion of the sub-rail body is inserted into the connecting sleeve 73, a locking bolt 71 is threadedly connected from the threaded hole and pressed against the outer wall of the plug-in portion, thereby fixing the sub-rail body to the connecting sleeve 73. Furthermore, a limiting groove 72 is provided on the plug-in part. When the locking bolt 71 limits the plug-in part, the locking bolt 71 abuts against the inner wall of the limiting groove 72, so that when the guardrail 7 is installed on the second connecting frame 3, the guardrail 7 is limited relative to the connecting sleeve 73, thereby improving the installation stability of the guardrail 7.

[0035] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A working ladder for oiling a landing gear, characterized in that: include: A ladder frame body is movably placed on the ground, and a main step is provided on one side of the ladder frame body; An operating frame is arranged above the ladder frame body, and a standing platform for workers to stand is arranged on the operating frame; The horizontal moving assembly is used to drive the standing platform to slide horizontally and linearly relative to the ladder frame body; The lifting assembly is used to drive the standing platform to rise and fall vertically relative to the ladder frame body. The support assembly is used to support the ladder frame body on the ground.

2. A landing gear oil filling working ladder according to claim 1, characterized in that: The operating frame includes a first connecting frame and a second connecting frame, wherein the first connecting frame is connected to the ladder frame body, and the second connecting frame is horizontally slidably connected above the first connecting frame; The horizontal moving assembly includes a screw rod and a connecting sleeve, the connecting sleeve is fixedly arranged on the first connecting frame, the screw rod is slidingly arranged on the second connecting frame parallel to the second connecting frame, both ends of the screw rod are rotatably connected to the second connecting frame, and the second connecting frame is rotatably provided with a crank handle connected to the screw rod transmission.

3. A landing gear oil filling working ladder according to claim 2, characterized in that: The lifting assembly includes a first piston cylinder and two frames, the middle parts of the two frames are hinged to each other, one end of the two frames are hinged to the first connecting frame and the ladder frame body respectively, the other ends of the two frames are horizontally slidably connected to the ladder frame body and the first connecting frame respectively, and the cylinder body and piston rod of the first piston cylinder are hinged to the ladder frame body and one frame respectively.

4. A landing gear oil filling working ladder according to claim 1, characterized in that: A plurality of rollers are arranged at the bottom of the ladder frame body, and the support assembly includes a plurality of sets of screw rods, support plates and handles. The screw rods are vertically and threadedly connected to the ladder frame body, the support plates are fixedly arranged at the bottom ends of the screw rods for contacting the ground, and the handles are fixedly arranged at the top ends of the screw rods.

5. A landing gear oil filling working ladder according to claim 2, characterized in that: An extended step is fixedly provided on one edge of the first connecting frame close to the main step. When the first connecting frame rises, the extended step is continuous with the main step.

6. A landing gear oil filling working ladder according to claim 2, characterized in that: The second connecting frame is detachably connected with a guardrail at the edge of the standing platform.

7. A landing gear oiling working ladder according to claim 1, characterized in that: A counterweight platform for placing a counterweight block is arranged on the ladder frame body.

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