A mobile work platform for aircraft maintenance

Abstract

The application provides a mobile operation platform for aviation maintenance, and relates to the field of aviation maintenance. The mobile operation platform for aviation maintenance comprises a chassis, a lifting mechanism and an auxiliary mechanism. The bottom of the lifting mechanism is provided with a supporting mechanism. The supporting mechanism comprises a moving groove and a baffle. The moving groove is arranged in the bottom of the lifting mechanism. The side of the baffle is slidably connected with the inner wall of the moving groove. The lifting mechanism is fixedly connected with the rear side of the chassis. The mobile operation platform for aviation maintenance is provided with the supporting mechanism. The electric push rod connected with the hinge frame is rotated until it is perpendicular to the ground. Meanwhile, the baffle in the moving groove slides down to the side of the electric push rod under the influence of gravity. The electric push rod is elongated to drive the supporting plate to move downward. The supporting plate moves downward to the rubber pad to be attached to the ground. The upward supporting force provided by the supporting mechanism for the mobile platform is enhanced. The stability of the mobile platform when the staff on the platform is working is improved. The safety of the staff standing on the top of the main platform is ensured.

Description

Technical Field

[0001] This application relates to the field of aircraft maintenance technology, specifically to a mobile work platform for aircraft maintenance. Background Technology

[0002] Aviation maintenance refers to the upkeep and repair of aircraft and their onboard equipment to ensure aircraft safety. Aviation maintenance is a prerequisite and necessary condition for aircraft use and an important component of the aviation industry. Due to the unique altitude of aircraft, mobile work platforms are needed for routine maintenance and repair work to facilitate reaching the target location and commencing operations.

[0003] Patent CN213974520U discloses a mobile platform for aircraft maintenance. This mobile platform for aircraft maintenance improves the working platform by adding support structures on both sides of the vehicle body and modifying it into a folding mode. Specifically, this utility model has a lifting frame on the vehicle body, with a main platform fixed at the top of the lifting frame. Extended platforms are hinged to both sides of the main platform. When in use, the extended platforms can be unfolded; after use, they can be flipped upwards, thus achieving a folding and storage function. In addition, this utility model adds support legs, hydraulic cylinders, and feet to both sides of the vehicle body, providing additional support during operation. This support increases the support span of the bottom load-bearing structure, helping to ensure the stability of the support structure. This utility model not only provides a larger working space but also allows for folding and storage; it also improves stability to a certain extent, possessing significant technical advantages. However, the stability of the support legs on this mobile platform is relatively low. The support legs provide insufficient upward support to the mobile platform, which may lead to insufficient stability when the mobile platform is stationary and workers are performing operations, potentially posing a danger to workers. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this application provides a mobile operation platform for aircraft maintenance, which solves the problems mentioned in the background section.

[0005] (II) Technical Solution To achieve the above objectives, this application provides the following technical solution: a mobile work platform for aviation maintenance, comprising a base frame, a lifting mechanism for adjusting the working height, and an auxiliary mechanism for facilitating the storage of the work platform. The bottom of the lifting mechanism is provided with a support mechanism for ensuring the stability of the work platform. The support mechanism includes a moving groove and a baffle. The moving groove is located at the bottom of the lifting mechanism, and the side of the baffle is slidably connected to the inner wall of the moving groove. The lifting mechanism is fixedly connected to the rear side of the base frame, and the auxiliary mechanism is located on one side of the support mechanism.

[0006] By adopting the above technical solution, the side of the baffle can be slidably connected to the moving groove. When the electric push rod is perpendicular to the ground, the baffle slides down into the moving groove to the side above the electric push rod under the influence of gravity, avoiding the situation where the front or rear platform tilts and causes the electric push rod to tilt, thus ensuring the stability of the electric push rod in a vertical state.

[0007] Preferably, the support mechanism further includes a hinge frame and an electric push rod. The top of the hinge frame is fixedly connected to one side of the bottom of the lifting mechanism. The top of the electric push rod is hinged to the hinge frame. A support plate is fixedly connected to the bottom of the electric push rod. A rubber pad is fixedly connected to the bottom of the support plate.

[0008] By adopting the above technical solution, the extension of the electric actuator hinged to the articulated frame can drive the support plate to move downward until the bottom of the rubber pad is in contact with the ground, thereby enhancing the stability of the work platform.

[0009] Preferably, the base frame includes a base box and a support rod. A handle is fixedly connected to the rear top of the base box, the top of the support rod is fixedly connected to the bottom of the base box, and a caster wheel is rotatably connected to the bottom of the support rod.

[0010] By adopting the above technical solution, the handle on the top of the base box can be used to control the direction of movement of the work platform, and the casters at the bottom of the support rod can be used to move the work platform to a suitable position.

[0011] Preferably, the lifting mechanism includes a motor and a slide rail. The motor is fixedly connected to the rear side of the base box. A bidirectional screw is fixedly connected to the output shaft of the motor. One end of the bidirectional screw is rotatably connected to the front side of the inner wall of the base box. An internal threaded ring is threaded onto the surface of the bidirectional screw. A moving rod is fixedly connected to the top of the internal threaded ring. Folding frames are rotatably connected to both sides of the surface of the moving rod. The slide rail is opened on the left and right sides of the inner wall of the base box. The slide rail is slidably connected to both ends of the moving rod.

[0012] By adopting the above technical solution, the rotation of the motor output shaft can drive the rotation of the bidirectional screw. The rotation of the bidirectional screw drives the moving rod, which is slidably connected to the top of the internal threaded ring and the slide groove, to move towards each other, thereby extending the folding frame to the target height and expanding the applicable scenarios of the work platform.

[0013] Preferably, the lifting mechanism further includes a main platform and a rear platform. The bottom of the main platform is slidably connected to the top of the folding frame. A movable groove is provided on the front side of the main platform. A front platform is slidably connected to the front side of the inner wall of the movable groove. The side of the rear platform is slidably connected to the rear side of the inner wall of the movable groove. Movable grooves are provided at the bottom of both the rear platform and the front platform. One side of the bottom of the rear platform and one side of the bottom of the front platform are fixedly connected to the top of the hinge frame.

[0014] By adopting the above technical solution, the working platform's range of motion can be adjusted by utilizing the front and rear platforms that are slidably connected to the main platform via the movable slots, facilitating simultaneous work by multiple people and improving maintenance efficiency.

[0015] Preferably, the auxiliary mechanism includes a side plate and a movable opening. The top of the side plate is fixedly connected to the other side of the bottom of the front platform and the other side of the bottom of the rear platform, respectively. The movable opening is opened below the front side of the side plate. A base plate is slidably connected inside the movable opening. A drive plate is fixedly connected to one side of the base plate.

[0016] By adopting the above technical solution, the bottom plate inside the moving opening in the side plate can be moved by the movement of the moving plate, which makes it easy to fix the electric push rod parallel to the bottom of the main platform.

[0017] Preferably, the auxiliary mechanism further includes a telescopic tube and a spring. The telescopic tube is fixedly connected to one side of the driving plate, and one end of the telescopic tube is fixedly connected to one side of the side plate. The spring is located outside the telescopic tube and is fixedly connected to one side of the driving plate. One end of the spring is fixedly connected to one side of the side plate.

[0018] By adopting the above technical solution, the telescopic tube can be used to further restrict the movement direction of the driving plate, and the spring can be used to easily fix the position of the base plate.

[0019] Preferably, a controller for controlling the opening and closing of various devices on the mobile work platform is fixedly connected to the rear side of the front platform.

[0020] By adopting the above technical solution, the controller can be used to facilitate the operation of various devices on the mobile work platform by the staff on the main platform surface.

[0021] (III) Beneficial Effects This application provides a mobile work platform for aircraft maintenance. It has the following advantages: 1. This mobile work platform for aircraft maintenance, through the setting of a support mechanism, rotates the electric actuator hinged to the articulated frame until it is perpendicular to the ground. At the same time, under the influence of gravity, the baffle in the moving slot slides down to one side of the electric actuator. The electric actuator extends and drives the support plate to move down. The support plate moves down until the rubber pad is in contact with the ground, which enhances the upward support force provided by the support mechanism to the mobile platform, improves the stability of the mobile platform when the workers are stationary, and ensures the safety of the workers standing on the top of the main platform.

[0022] 2. This mobile work platform for aviation maintenance, through the setting of an auxiliary mechanism, when the electric push rod rotates to be parallel with the main platform, releases the control of the drive plate. Driven by the elastic force of the spring on the outside of the telescopic tube, the plate moves. The movement of the drive plate moves the bottom plate, which is slidably connected to the moving port opened in the side plate, to the top and fits against the bottom of the electric push rod. This facilitates fixing the position of the electric push rod when not in use and improves the convenience of storing the mobile work platform. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the external structure of this application from a top left view; Figure 2 This is an enlarged schematic diagram of Part A of the structure of this application; Figure 3 This is a schematic diagram of the rear-view, left-view, and top-view lifting mechanism of this application. Figure 4 This is a schematic diagram of the rear-view, left-view, and upward-view sections of the structure of this application; Figure 5 This is a schematic diagram of the rear-view, right-view, and upward-view portion of the structure of this application; Figure 6 This is an enlarged schematic diagram of Part B of this application.

[0025] In the diagram: 1. Base frame; 101. Base box; 102. Support rod; 103. Casters; 104. Handle; 2. Lifting mechanism; 201. Motor; 202. Double-acting screw; 203. Internal threaded ring; 204. Moving rod; 205. Folding frame; 206. Main platform; 207. Movable slot; 208. Front platform; 209. Rear platform; 210. Slide groove; 3. Support mechanism; 301. Hinge frame; 302. Electric actuator; 303. Support plate; 304. Rubber pad; 305. Movable slot; 306. Baffle; 4. Auxiliary mechanism; 401. Side plate; 402. Moving port; 403. Base plate; 404. Drive plate; 405. Telescopic tube; 406. Spring; 5. Controller. Detailed Implementation

[0026] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0027] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6 This application provides a mobile work platform for aircraft maintenance, including a base frame 1, a lifting mechanism 2 for adjusting the working height, and an auxiliary mechanism 4 for facilitating the storage of the work platform. A support mechanism 3 is provided at the bottom of the lifting mechanism 2 to ensure the stability of the work platform. The support mechanism 3 includes a moving groove 305 and a baffle 306. The moving groove 305 is located at the bottom of the lifting mechanism 2, and the side of the baffle 306 is slidably connected to the inner wall of the moving groove 305. A hinge frame 301 is fixedly connected to one side of the bottom of the lifting mechanism 2, and the hinge frame 301 is hinged to... Electric actuator 302, with a support plate 303 fixedly connected to the bottom of the electric actuator 302, and a rubber pad 304 fixedly connected to the bottom of the support plate 303. Lifting mechanism 2 is fixedly connected to the rear side of the base frame 1. Auxiliary mechanism 4 is set on one side of support mechanism 3. Rotate the electric actuator 302, which is hinged to the hinge frame 301, until it is perpendicular to the ground. At the same time, under the influence of gravity, the baffle 306 in the moving groove 305 slides down to one side of the electric actuator 302. The electric actuator 302 extends and drives the support plate 303 to move down. The support plate 303 moves down until the rubber pad 304 is in contact with the ground.

[0029] Reference Figure 1 and Figure 3 In one aspect of this embodiment, the base frame 1 includes a base box 101 and a support rod 102. A handle 104 is fixedly connected to the rear top of the base box 101. The top of the support rod 102 is fixedly connected to the bottom of the base box 101. A caster wheel 103 is rotatably connected to the bottom of the support rod 102. By holding the handle 104, the movement direction of the base box 101 is controlled. The caster wheel 103 at the bottom of the support rod 102 rotates and drives the base box 101 to the target position.

[0030] Reference Figure 1 , Figure 3 and Figure 4 In one aspect of this embodiment, the lifting mechanism 2 includes a motor 201 and a slide 210. The motor 201 is fixedly connected to the rear side of the base box 101. A bidirectional screw 202 is fixedly connected to the output shaft of the motor 201. One end of the bidirectional screw 202 is rotatably connected to the front side of the inner wall of the base box 101. An internal threaded ring 203 is threadedly connected to the surface of the bidirectional screw 202. A moving rod 204 is fixedly connected to the top of the internal threaded ring 203. Folding frames 205 are rotatably connected to both sides of the surface of the moving rod 204. The slide 210 is opened on the left and right sides of the inner wall of the base box 101. The slide 210 is slidably connected to both ends of the moving rod 204. A main platform 206 is slidably connected to the top of the folding frame 205. An movable groove 207 is opened on the front side of the main platform 206. A front platform 208 is slidably connected to the front side of the inner wall of the movable groove 207. A rear platform 209 is slidably connected to the rear side of the inner wall of 07. The bottom of the rear platform 209 and the bottom of the front platform 208 are both provided with movable grooves 305. One side of the bottom of the rear platform 209 and the bottom side of the front platform 208 are fixedly connected to the top of the hinge frame 301. Move the front platform 208 in the movable groove 207 to a suitable position, and move the rear platform 209 in the movable groove 207 to a suitable position. The worker stands on the surface of the main platform 206. The output shaft of the motor 201 rotates, which drives the bidirectional screw 202 to rotate. The rotation of the bidirectional screw 202 drives the internal thread ring 203 to move towards each other. The movement of the internal thread ring 203 drives the movable rod 204, which is slidably connected to the slide groove 210, to move towards each other. The movement of the movable rod 204 drives the folding frame 205 to extend. The extension of the folding frame 205 drives the main platform 206 to move up to the target height.

[0031] Reference Figure 5 and Figure 6 In one aspect of this embodiment, the auxiliary mechanism 4 includes a side plate 401 and a movable port 402. The top of the side plate 401 is fixedly connected to the other side of the bottom of the front platform 208 and the other side of the bottom of the rear platform 209, respectively. The movable port 402 is opened below the front side of the side plate 401. A base plate 403 is slidably connected inside the movable port 402. A driving plate 404 is fixedly connected to one side of the base plate 403. A telescopic tube 405 is fixedly connected to one side of the driving plate 404. One end of the telescopic tube 405 is fixedly connected to one side of the side plate 401. A spring 406 is provided on the outside of the telescopic tube 405. The spring 406 is fixedly connected to one side of the driving plate 404. One end of the spring 406 is fixedly connected to one side of the side plate 401. Moving the driving plate 404 causes the telescopic tube 405 and the spring 406 to extend. At the same time, it causes the base plate 403 inside the movable port 402 of the side plate 401 to move to a suitable position, so that the tilt angle of the electric push rod 302 can be adjusted.

[0032] Reference Figure 1 and Figure 2In one aspect of this embodiment, a controller 5 for controlling the opening and closing of various devices of the mobile work platform is fixedly connected to the rear side of the front platform 208, and the motor 201 and the electric push rod 302 are started by the controller 5.

[0033] All electrical devices in this plan are powered by an external power source.

[0034] Working principle: During use, the handle 104 is held to control the movement direction of the base box 101. The universal wheels 103 at the bottom of the support rod 102 rotate, driving the base box 101 to the target position. The front platform 208 in the moving slot 207 moves forward to the appropriate position, and the rear platform 209 in the moving slot 207 moves backward to the appropriate position. The moving drive plate 404 drives the telescopic tube 405 and the spring 406 to extend, and at the same time drives the base plate 403 in the moving opening 402 of the side plate 401 to move to the appropriate position. Then, the electric push rod 302, which is hinged to the hinge frame 301, is rotated until it is perpendicular to the ground. At the same time, under the influence of gravity, the baffle 306 in the moving slot 305 slides down to the electric push rod. On one side of 302, the electric actuator 302 is fixed in position. The worker stands on the surface of the main platform 206 and starts the motor 201 and the electric actuator 302 through the controller 5. The output shaft of the motor 201 rotates, which drives the bidirectional screw 202 to rotate. The rotation of the bidirectional screw 202 drives the internal threaded ring 203 to move towards each other. The movement of the internal threaded ring 203 drives the moving rod 204, which is slidably connected to the slide groove 210, to move towards each other. The movement of the moving rod 204 drives the folding frame 205 to extend. The extension of the folding frame 205 drives the main platform 206 to move up to the target height. At the same time, the extension of the electric actuator 302 drives the support plate 303 to move down. The support plate 303 moves down until the rubber pad 304 is in contact with the ground.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mobile work platform for aircraft maintenance, comprising a base frame (1), a lifting mechanism (2) for adjusting the working height, and an auxiliary mechanism (4) for facilitating the storage of the work platform, characterized in that: The bottom of the lifting mechanism (2) is provided with a support mechanism (3) for ensuring the stability of the working platform. The support mechanism (3) includes a moving groove (305) and a baffle (306). The moving groove (305) is opened at the bottom of the lifting mechanism (2). The side of the baffle (306) is slidably connected to the inner wall of the moving groove (305). The lifting mechanism (2) is fixedly connected to the rear side of the base frame (1). The auxiliary mechanism (4) is set on one side of the support mechanism (3).

2. The mobile work platform for aircraft maintenance according to claim 1, characterized in that: The support mechanism (3) further includes a hinge frame (301) and an electric push rod (302). The top of the hinge frame (301) is fixedly connected to one side of the bottom of the lifting mechanism (2). The top of the electric push rod (302) is hinged to the hinge frame (301). A support plate (303) is fixedly connected to the bottom of the electric push rod (302). A rubber pad (304) is fixedly connected to the bottom of the support plate (303).

3. The mobile work platform for aircraft maintenance according to claim 1, characterized in that: The base frame (1) includes a base box (101) and a support rod (102). A handle (104) is fixedly connected to the rear top of the base box (101). The top of the support rod (102) is fixedly connected to the bottom of the base box (101). A caster wheel (103) is rotatably connected to the bottom of the support rod (102).

4. A mobile work platform for aircraft maintenance according to claim 3, characterized in that: The lifting mechanism (2) includes a motor (201) and a slide (210). The motor (201) is fixedly connected to the rear side of the base box (101). The output shaft of the motor (201) is fixedly connected to a bidirectional screw (202). One end of the bidirectional screw (202) is rotatably connected to the front side of the inner wall of the base box (101). The surface of the bidirectional screw (202) is threaded with an internal thread ring (203). The top of the internal thread ring (203) is fixedly connected to a moving rod (204). Folding frames (205) are rotatably connected to both sides of the surface of the moving rod (204). The slide (210) is opened on the left and right sides of the inner wall of the base box (101). The slide (210) is slidably connected to both ends of the moving rod (204).

5. A mobile work platform for aircraft maintenance according to claim 4, characterized in that: The lifting mechanism (2) further includes a main platform (206) and a rear platform (209). The bottom of the main platform (206) is slidably connected to the top of the folding frame (205). The front side of the main platform (206) is provided with an active groove (207). The front side of the inner wall of the active groove (207) is slidably connected to a front platform (208). The side of the rear platform (209) is slidably connected to the rear side of the inner wall of the active groove (207). The bottom of the rear platform (209) and the bottom of the front platform (208) are both provided with moving grooves (305). The bottom side of the rear platform (209) and the bottom side of the front platform (208) are both fixedly connected to the top of the hinge frame (301).

6. A mobile work platform for aircraft maintenance according to claim 5, characterized in that: The auxiliary mechanism (4) includes a side plate (401) and a movable port (402). The top of the side plate (401) is fixedly connected to the other side of the bottom of the front platform (208) and the other side of the bottom of the rear platform (209). The movable port (402) is opened below the front side of the side plate (401). A base plate (403) is slidably connected inside the movable port (402). A drive plate (404) is fixedly connected to one side of the base plate (403).

7. A mobile work platform for aircraft maintenance according to claim 6, characterized in that: The auxiliary mechanism (4) further includes a telescopic tube (405) and a spring (406). The telescopic tube (405) is fixedly connected to one side of the driving plate (404), and one end of the telescopic tube (405) is fixedly connected to one side of the side plate (401). The spring (406) is located outside the telescopic tube (405), and the spring (406) is fixedly connected to one side of the driving plate (404). One end of the spring (406) is fixedly connected to one side of the side plate (401).

8. A mobile work platform for aircraft maintenance according to claim 5, characterized in that: The front platform (208) is fixedly connected to a controller (5) for controlling the opening and closing of various devices of the mobile work platform.

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