CN212315465U - Lifting prostrate workbench of ground maintenance arm support of airplane - Google Patents

Lifting prostrate workbench of ground maintenance arm support of airplane Download PDF

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Publication number
CN212315465U
CN212315465U CN202020675324.6U CN202020675324U CN212315465U CN 212315465 U CN212315465 U CN 212315465U CN 202020675324 U CN202020675324 U CN 202020675324U CN 212315465 U CN212315465 U CN 212315465U
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China
Prior art keywords
working platform
prone
plate
steel chain
ground maintenance
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CN202020675324.6U
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Chinese (zh)
Inventor
薛强
赵小阳
蔡国富
彭德富
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Chengdu CAIC Electronics Co Ltd
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Chengdu CAIC Electronics Co Ltd
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Abstract

The utility model belongs to the technical field of airplane maintenance equipment, and discloses an airplane ground maintenance arm support lifting prostrate workbench, which comprises a working platform connected with an arm support lifting mechanism; a linear driving device and a roller assembly are simultaneously installed on one side surface of the working platform connected with the arm support lifting mechanism; the mounting seat of the linear driving device is fixed on the working platform, and a linear push rod of the linear driving device is connected with the mounting frame; the mounting rack is provided with a guide rail assembly in linear limiting sliding connection with the roller assembly; any side surface of the working platform, which is not provided with the mounting seat, is provided with a prone plate; the bottom of the prone plate is hinged with the bottom of the working platform through a rotating shaft, and the extending part of the prone plate, far away from the rotating shaft, is connected with the middle part or the upper part of the working platform through an inclined steel chain. By using the workbench, maintenance personnel can conveniently reach the maintenance operation area in a prone posture without trampling the outer surface of the airplane, and the maintenance operation efficiency is effectively improved.

Description

Lifting prostrate workbench of ground maintenance arm support of airplane
Technical Field
The utility model discloses aircraft maintenance equipment technical field, specific theory is an aircraft ground maintenance cantilever crane lift prostrate workstation.
Background
On the one hand, maintenance operations on the aircraft are difficult, in particular on the back of the aircraft, since maintenance personnel are generally not allowed to step on the outer surface of the aircraft during the coating process or maintenance of the aircraft, and there is little other effective way for the maintenance personnel to reach the maintenance area without stepping on the outer surface of the aircraft.
On the other hand, an aerial work platform is an aerial work machine which travels on a work place or between sites by using its own power, and is a professional aerial work apparatus which lifts workers, tools, materials and the like to a certain position through the platform to perform works such as construction, installation, maintenance and the like. The device can replace the traditional operation modes of hanging baskets, scaffolds and the like, and can greatly improve the safety and efficiency of high-altitude operation. The airplane ground aerial work platform is maintenance equipment for completing airplane assembly or disassembly and aerial work through lifting.
If the workbench capable of working in prone position can be provided, the workbench is extended to the back of the airplane through the arm support lifting mechanism, and maintenance personnel can perform prone maintenance operation in the workbench, so that the outer surface of the airplane can be effectively protected, the outer surface of the airplane can also effectively reach a maintenance operation area, and the maintenance operation efficiency is improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve among the prior art and just be difficult to reach all maintenance operation region and maintain the technical problem of operation difficulty because of the maintainer does not trample the aircraft surface, provide an aircraft ground maintenance cantilever crane lift prone workstation, extend the aircraft back through cantilever crane elevating system with the workstation to through the operation area that the board extends work platform that overturns prone, make things convenient for the maintainer not trample the aircraft surface and adopt the prone posture and can reach the maintenance operation region, improve maintenance operation efficiency effectively.
The utility model discloses a following technical scheme realizes:
an aircraft ground maintenance arm support lifting prone-lying workbench is connected with an arm support lifting mechanism; the working platform comprises a working platform connected with the arm support lifting mechanism, and a linear driving device and a roller assembly are simultaneously installed on one side surface of the working platform connected with the arm support lifting mechanism; the mounting seat of the linear driving device is fixed on the working platform, and a linear push rod of the linear driving device is connected with the mounting frame; the mounting rack is provided with a guide rail assembly in linear limiting sliding connection with the roller assembly; any side surface of the working platform, which is not provided with the mounting seat, is provided with a prone plate; the bottom of the prone plate is hinged with the bottom of the working platform through a rotating shaft, and the extending part of the prone plate, far away from the rotating shaft, is connected with the middle part or the upper part of the working platform through an inclined steel chain.
Furthermore, in order to better realize the utility model, one side of the working platform, which is provided with the prone plate, is a front guardrail part; the front guardrail part of the working platform and the extension part of the prone plate are provided with locking pin holes corresponding in position, when the prone plate rotates upwards along the rotating shaft to the prone plate to be retracted into the working platform, the locking pin for locking the prone plate can simultaneously penetrate the locking pin holes formed in the working platform and the locking pin holes formed in the prone plate.
Further, for better realization the utility model discloses, work platform's leading guardrail portion all sets up the locking pinhole that two sets of positions of a left side right side correspond and two draw steel chains to one side in a left side right side with the extension of board of lying prone.
Furthermore, in order to better realize the utility model, both ends of the diagonal steel chain are provided with hooks; one left side and one right side of the prone plate extension part are provided with one or more hangers corresponding to positions, and the hook can be detachably connected with any one hanger.
Furthermore, in order to better realize the utility model, both ends of the diagonal steel chain are provided with hooks; the left side and the right side of the front guardrail part of the working platform are also provided with one or more hangers corresponding to positions, and the hook can be detachably connected with any one hanger.
Furthermore, in order to better realize the utility model, both ends of the diagonal steel chain are provided with hooks; the left side and the right side of the extension part of the prone plate are provided with one or more hangers corresponding to positions, and the left side and the right side of the front guardrail part of the working platform are also provided with one or more hangers corresponding to positions, and the hook can be detachably connected with any one hanger.
Furthermore, in order to better realize the utility model, a left electric winch and a right electric winch are also arranged at the front guardrail part of the working platform, and a diagonal steel chain is wound on a retraction shaft of each electric winch; and the free end of the cable-stayed steel chain extending out of the electric winch is connected with the extension part of the prone plate.
Further, for better realization the utility model discloses, guide rail set spare's upper limit position, lower limit position all are provided with the stopper that the restriction mounting bracket reciprocated the scope for work platform.
Further, for better realization the utility model discloses, linear drive is electronic pushing cylinder or pneumatic pushing cylinder or hydraulic jack.
Furthermore, in order to better realize the utility model, the working platform is provided with four side surfaces, namely a front side, a left side, a rear side and a right side; the mounting rack is arranged on the rear side of the working platform through the linear driving device and the roller assembly; the prone plate is arranged on the front side of the working platform.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
(1) the utility model provides a lack the lift platform's that the staff can prostrate the operation technical problem among the current aircraft ground maintenance equipment, the aircraft ground maintenance cantilever crane lift prone position workstation that provides extends the workstation through cantilever crane elevating system to through the operation area of upset prone plate extension work platform, make things convenient for the maintainer not to trample the aircraft surface and adopt the prone position can reach and maintain the operation region, improve effectively and maintain the operating efficiency.
(2) In the utility model, the working platform can translate up and down in a certain range relative to the mounting frame fixedly connected with the arm support lifting mechanism through the linear driving device, so that maintenance personnel can effectively reach a maintenance operation area during maintenance operation; meanwhile, the mounting frame and the working platform are linearly guided through the guide rail assembly and the roller assembly, and the motion stability of the lifting process of the working platform is further guaranteed.
(3) The utility model discloses in through change draw the hookup location of steel chain and/or change draw the connection length of steel chain to one side to the change, realize the board of crouching down and put down the adjustment of back angle, make maintainer can be according to actual conditions adjustment board angle of crouching down, improved the convenience of maintaining the operation.
Drawings
FIG. 1 is a schematic view of the three-dimensional structure of the prone plate of the workbench of the present invention when it is laid down;
fig. 2 is a schematic perspective view of the mounting frame of the present invention;
FIG. 3 is a schematic perspective view of the working platform of the present invention;
fig. 4 is a schematic view of the three-dimensional structure of the working table when the push-up plate of the utility model is folded.
Wherein: 1. a boom lifting mechanism; 2. a mounting frame; 3. a linear drive device; 4. a working platform; 5. a locking pin; 6. drawing a steel chain to an inclined way; 7. a prone lying plate; 8. a guide rail assembly; 9. a roller assembly.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
Example 1:
the utility model discloses a following technical scheme realizes, an aircraft ground maintenance cantilever crane lift prostrate workstation, is connected with cantilever crane elevating system 1. In the present embodiment, a square table is taken as an example to describe in detail. The square table has four sides, namely a front side, a left side, a rear side and a right side, as shown in fig. 1-4.
Specifically, the workbench comprises a working platform 4 connected with the arm frame lifting mechanism 1, and a linear driving device 3 and a roller assembly 9 are simultaneously installed on the rear side of the working platform 4 connected with the arm frame lifting mechanism 1; the mounting seat of the linear driving device 3 is fixed on the working platform 4, and the linear push rod of the linear driving device 3 is connected with the mounting frame 2; the mounting frame 2 is provided with a guide rail assembly 8 which is linearly limited and slidably connected with the roller assembly 9; a prone plate 7 is arranged on the front side of the working platform 4 without a mounting seat; the bottom of the prone plate 7 is hinged with the bottom of the working platform 4 through a rotating shaft, and the extending part of the prone plate 7, which is far away from the rotating shaft, is connected with the middle part or the upper part of the working platform 4 through an inclined steel chain 6.
In this embodiment, the mounting bracket 2 is disposed at the rear side of the working platform 4 through the linear driving device 3 and the roller assembly 9, the prone plate 7 is disposed at the front side of the working platform 4, and the front side of the prone plate 7 mounted on the working platform 4 is a front guardrail portion. In the actual use process, the arm support lifting mechanism 1 is fixedly connected with the mounting frame 2 through connecting pieces such as bolts, and the arm support lifting mechanism 1 drives the whole workbench to lift and move in a large range through the mounting frame 2; further, the mounting frame 2 is connected with the working platform 4 in a linear moving mode through the linear driving device 3 installed on the working platform 4, and the linear driving device 3 drives the working platform 4 to move up and down in a small range through the linear push rod. On the other hand, the bottom articulates prostrate board 7 at work platform 4 front side, realizes the upset of lying down board 7 through connecting work platform 4 and prostrate 6 steel chains that draw to one side between board 7: when the prone plate 7 rotates along the rotating shaft to the working platform 4 to be folded, the prone plate 7 is located at a vertical position, and the prone plate 7 serves as a temporary guardrail at the front side of the working platform 4; when the prone plate 7 is rotated and folded downwards along the rotating shaft, the prone plate 7 is located at an inclined position or a flat position, and the prone plate 7 can support maintenance personnel who lie prone at the moment, so that the maintenance personnel can lie prone on the prone plate 7 to perform maintenance operation.
In this embodiment, the rear side of the working platform 4 is provided with not only the linear driving device 3 but also the roller assembly 9, and one side of the mounting frame 2 connected with the working platform 4 is provided with the guide rail assembly 8. The guide rail assembly 8 and the roller assembly 9 are embedded to form a roller guide rail pair, so that linear guide is realized when the working platform 4 moves up and down. Further, the upper limit position and the lower limit position of the guide rail assembly 8 are both provided with limit blocks for limiting the vertical movement range of the installation frame 2 relative to the working platform 4. The limiting block limits the limit range of the up-down lifting movement of the working platform 4 to prevent the working platform from falling off.
Further, the linear driving device 3 is an electric cylinder or a pneumatic cylinder or a hydraulic jack. For example: when the electric pushing cylinder is adopted as the linear driving device 3, the mounting seat of the electric pushing cylinder is installed on the working platform 4, the linear push rod of the electric pushing cylinder is connected with the mounting frame 2, and the driver of the electric pushing cylinder controls the linear push rod to linearly stretch and move and reversely push the working platform 4 to linearly move in a small range relative to the mounting frame 2.
Example 2:
the present embodiment is further optimized based on the above embodiments.
Firstly, when a maintenance person needs to perform prone operation on a workbench, the prone plate 7 which is originally vertically folded on the side surface of the working platform 4 and serves as a temporary protective guard needs to be rotated and put down, namely, the prone plate 7 is turned downwards from the working platform 4 and put down from a vertical position to an inclined position or a flat position.
In order to ensure the safety of the maintenance personnel lying on the prone plate 7, the stability of the lying plate 7 after being put down must be ensured. Therefore, two sets of diagonal tension steel chains 6 are typically on the left and right of the prone plate 7. In general, the two groups of diagonal steel chains 6 have the same specific structure and are symmetrical to the connection structure of the working platform 4 and the prone plate 7.
Secondly, whether the angle is adjustable after the prone plate 7 is put down is divided into two situations:
in the first case, the angle of the prone plate 7 after being put down is not adjustable.
Generally, the connecting position of the oblique-pulling steel chain 6 and the working platform 4 and the connecting position of the oblique-pulling steel chain 6 and the prone plate 7 are not adjustable, and the connecting length of the oblique-pulling steel chain 6 between the working platform 4 and the prone plate 7 is not changed. For example: when a left side of the prone plate 7 is provided with two sets of oblique-pulling steel chains 6, a left side and a right side of the extension part of the prone plate 7 are provided with hangers corresponding to a set of positions at specific positions, and simultaneously, a left side and a right side of the front guardrail part of the working platform 4 are also provided with hangers corresponding to a set of positions at specific positions, and the hook can be detachably connected with any one hanger. In general, the left and right diagonal steel chains 6 are symmetrically arranged.
In the second situation, the angle of the prone plate 7 after being put down can be adjusted.
At the moment, the connection structure of the diagonal steel chain 6, the working platform 4 and the prone plate 7 is divided into three categories according to the change of the connection position of the diagonal steel chain 6 to adjust the turnover angle or the change of the connection length of the diagonal steel chain 6 to adjust the turnover angle.
The first kind does not change the connection length of drawing the steel chain 6 to one side, and when adjusting rotation angle through changing the hookup location of drawing the steel chain 6 to one side, the both ends of drawing the steel chain 6 to one side are the couple, and draw the steel chain 6 to one side and work platform 4's hookup location or draw the steel chain 6 to one side and prostrate the hookup location of board 7 to set up a plurality ofly, at a hangers of every hookup location installation, the couple can be dismantled with the hangers and be connected. The turnover angle of the prone plate 7 is changed by manually adjusting the connecting position of the inclined pull steel chain 6 and the working platform 4 or the prone plate 7.
At this time, the connection structure of the inclined pull steel chain 6, the front guardrail part of the working platform 4 and the extension part of the prone plate 7 includes but is not limited to the following specific schemes:
firstly, two ends of the diagonal steel chain 6 are respectively provided with a hook; one left side and one right side of the extension part of the prone plate 7 are provided with one or more hangers corresponding to positions, and the hook can be detachably connected with any one hanger.
Secondly, two ends of the diagonal steel chain 6 are respectively provided with a hook; the left side and the right side of the front guardrail part of the working platform 4 are also provided with one or more hangers corresponding to positions, and the hook can be detachably connected with any one hanger.
Thirdly, both ends of the diagonal steel chain 6 are provided with hooks; one left side and right side of the extension part of the prone plate 7 are provided with one or more hangers corresponding to positions, and one left side and right side of the front guardrail part of the working platform 4 are also provided with one or more hangers corresponding to positions, and the hook can be detachably connected with any one hanger.
The second is the main type, does not change the hookup location who draws the steel chain 6 to one side, and when adjusting turnover angle through the connection length who draws the steel chain 6 to one side that changes, install electric hoist engine in the leading guardrail portion of work platform 4, draw the one end of steel chain 6 to one side to be connected with work platform 4 through winding on electric hoist engine's the receipts and releases epaxial indirectly, at this moment draw the free end that the steel chain 6 stretches out electric hoist engine to one side and connect the extension at board 7 that crouches down, and draw the hookup location of steel chain 6 and board 7 that prostrates to one side unchangeable. The length of the diagonal steel chain 6 connected between the front guardrail part of the working platform 4 and the extension part of the prone plate 7 is adjusted by controlling the retraction and extension action of the electric winch, so that the overturning angle of the prone plate 7 is changed.
At this time, the connection structure of the inclined pull steel chain 6, the front guardrail part of the working platform 4 and the extension part of the prone plate 7 includes but is not limited to the following specific schemes:
firstly, a left electric winch and a right electric winch are further installed on the front guardrail part of the working platform 4, and a diagonal steel chain 6 is wound on a retraction shaft of each electric winch; the free end of the inclined steel chain 6 extending out of the electric winch is connected with the extension part of the prone plate 7.
Secondly, a left electric winch and a right electric winch are further installed on the extending part of the prone plate 7, and a diagonal steel chain 6 is wound on a retracting shaft of each electric winch; the free end of the oblique-pulling steel chain 6 extending out of the electric winch is connected with the front guardrail part of the working platform 4.
In the structure, the second specific scheme and the first specific scheme belong to the same technical means, the electric winch is arranged on the extension part of the prone plate 7 to realize indirect connection of the inclined steel chain 6 and the extension part of the prone plate 7, and the free end of the inclined steel chain 6 extending out of the electric winch is connected to the front guardrail part of the working platform 4.
And in the third category, the connection position of the diagonal steel chain 6 and the connection length of the diagonal steel chain 6 are changed simultaneously to adjust the turnover angle.
At this moment, draw steel chain 6 to one side and combine first major type and the concrete structure of the second major type with the connection structure of the leading guardrail portion of work platform 4, the extension of prone plate 7, no longer give unnecessary details.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 3:
the embodiment is further optimized on the basis of embodiment 1 or embodiment 2, and when the prone plate 7 is turned upwards along the rotating shaft and is folded into the working platform 4, the prone plate needs to be temporarily fixed. The fixed connection for temporarily fixing the prone plate 7 to the front fence portion of the work platform 4 is usually a bolt and bolt assembly or the like.
In this embodiment, a fixed connection structure for temporarily fixing the prone plate 7 and the front guardrail portion of the working platform 4 is provided: the left and right sides of the leading guardrail portion of work platform 4 all sets up the locking pinhole, the left and right sides of the extension of board 7 crouches prostrate all sets up the locking pinhole, just the left locking pinhole of the leading guardrail portion of work platform 4 with the left locking pinhole position of the extension of board 7 crouches prostrate corresponds the locking pinhole on the leading guardrail portion right side of work platform 4 with the locking pinhole position on the extension right side of board 7 crouches prostrate corresponds. When board 7 pronates upward rotatory to board 7 of pronating along the pivot and withdraws work platform 4 in, the left locking pinhole of the leading guardrail portion of work platform 4 with the left locking pin hole of the extension of board 7 crouches prostrate the locking pinhole on the leading guardrail portion right side of work platform 4 with the locking pin hole on the extension right side of board 7 crouches prostrate, two lockpins 5 insert respectively in a left set of locking pin hole and a set of locking pin hole on right side, will crouch board 7 and lock temporarily.
When the maintenance personnel need to do prone operation, after the locking pin 5 is pulled out, the prone plate 7 can be controlled to be unfolded to the prone working state shown in fig. 1 through the driving device or manually, and the function that the maintenance personnel can do maintenance operation on the prone plate 7 in a prone mode is achieved. Further, the length of the cable-stayed steel chain 6 and/or the connection position of the end part of the cable-stayed steel chain 6 can be adjusted, so that the inclination angle of the prone plate 7 can be adjusted, and the requirements of different prone state operations can be met; as shown in fig. 4, the prone plate 7 can be turned over and retracted to a vertical state, and is fixedly connected with the working platform 4 through the locking pin 5, so that the guardrail function of the common working platform 4 is realized.
Other parts of this embodiment are the same as those of embodiment 1 or embodiment 2, and thus are not described again.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the invention in any way. It is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in other forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed manner, including employing various features disclosed herein in combination with features that may not be explicitly disclosed herein. Various changes and modifications in the above-described arrangements and materials, including combinations of features disclosed herein either individually or in any combination thereof, will be apparent to those skilled in the art upon examination of the principles of the invention. These variations and/or combinations fall within the technical field related to the invention and the protective scope of the invention as claimed.

Claims (10)

1. The utility model provides an aircraft ground maintenance cantilever crane lift prone workstation, includes work platform (4) of being connected with cantilever crane elevating system (1), its characterized in that: a linear driving device (3) and a roller assembly (9) are simultaneously installed on one side surface of the working platform (4) connected with the arm support lifting mechanism (1); the mounting seat of the linear driving device (3) is fixed on the working platform (4), and a linear push rod of the linear driving device (3) is connected with the mounting frame (2); the mounting rack (2) is provided with a guide rail component (8) which is linearly limited and slidably connected with the roller component (9); a prone plate (7) is arranged on any side surface of the working platform (4) which is not provided with the mounting seat; the bottom of the prone plate (7) is hinged to the bottom of the working platform (4) through a rotating shaft, and the extension part of the prone plate (7) far away from the rotating shaft is connected with the middle part or the upper part of the working platform (4) through an inclined steel chain (6).
2. The aircraft ground maintenance boom lifting prone table of claim 1, wherein: one side of the working platform (4) provided with the prone plate (7) is a front guardrail part; the extension of the leading guardrail portion of work platform (4) and board (7) of crouching down is provided with the locking pinhole that the position corresponds, when board (7) of crouching down upwards rotates to crouching down board (7) along the pivot and withdraws work platform (4) in for locking lockpin (5) of board (7) of crouching down can pass the locking pinhole that sets up on work platform (4) and set up the locking pinhole on crouching down board (7) simultaneously.
3. The aircraft ground maintenance boom lifting prone table of claim 2, wherein: the front guardrail part of the working platform (4) and the extension part of the prone plate (7) are provided with a left group of locking pin holes and a right group of locking pin holes corresponding to the left group of locking pin holes and a left group of diagonal steel chains (6).
4. An aircraft ground maintenance boom lifting prone table as claimed in claim 3 wherein: both ends of the diagonal steel chain (6) are provided with hooks; one or more hangers corresponding to the position are arranged on one left side and one right side of the extension part of the prone plate (7), and the hook can be detachably connected with any hanger.
5. An aircraft ground maintenance boom lifting prone table as claimed in claim 3 wherein: both ends of the diagonal steel chain (6) are provided with hooks; one or more hangers corresponding to the position are also arranged on one left side and one right side of the front guardrail part of the working platform (4), and the hook can be detachably connected with any hanger.
6. An aircraft ground maintenance boom lifting prone table as claimed in claim 3 wherein: both ends of the diagonal steel chain (6) are provided with hooks; the left side and the right side of the extension part of the prone plate (7) are provided with one or more hangers corresponding to positions, and meanwhile, the left side and the right side of the front guardrail part of the working platform (4) are also provided with one or more hangers corresponding to positions, and the hook can be detachably connected with any one hanger.
7. An aircraft ground maintenance boom lifting prone table as claimed in claim 3 wherein: a left electric winch and a right electric winch are further installed on the front guardrail part of the working platform (4), and a diagonal steel chain (6) is wound on a retracting shaft of each electric winch; the free end of the inclined steel chain (6) extending out of the electric winch is connected with the extending part of the prone plate (7).
8. The aircraft ground maintenance boom lifting prone table of claim 1, wherein: and the upper limit position and the lower limit position of the guide rail assembly (8) are both provided with limit blocks for limiting the up-down movement range of the mounting frame (2) relative to the working platform (4).
9. An aircraft ground maintenance boom lifting prone table according to any of claims 1-8 wherein: the linear driving device (3) is an electric pushing cylinder or a pneumatic pushing cylinder or a hydraulic jack.
10. An aircraft ground maintenance boom lifting prone table according to any of claims 1-8 wherein: the working platform (4) is provided with four side surfaces of a front side, a left side, a rear side and a right side; the mounting rack (2) is arranged at the rear side of the working platform (4) through the linear driving device (3) and the roller assembly (9); the prone plate (7) is arranged on the front side of the working platform (4).
CN202020675324.6U 2020-04-28 2020-04-28 Lifting prostrate workbench of ground maintenance arm support of airplane Active CN212315465U (en)

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Application Number Priority Date Filing Date Title
CN202020675324.6U CN212315465U (en) 2020-04-28 2020-04-28 Lifting prostrate workbench of ground maintenance arm support of airplane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020675324.6U CN212315465U (en) 2020-04-28 2020-04-28 Lifting prostrate workbench of ground maintenance arm support of airplane

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CN212315465U true CN212315465U (en) 2021-01-08

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