A lifting and moving platform for detecting and maintaining navigation lights

Abstract

The present invention relates to the technical field of lifting platforms, and specifically discloses a liftable mobile platform for detecting and maintaining navigation lights, which includes a self-propelled chassis, a lifting mechanism and an operating platform; the self-propelled chassis includes a first body and a second body; the first body is supported by four straight wheels and the straight wheels are driving wheels, and a rotating body is rotatably fixed in the middle of the first body; the second body is located above the first body and the middle is fixedly connected to the rotating body, the front end of the second body is supported by two steering wheels, the steering wheels are located in front of the straight wheels, the rear end of the second body is supported by two universal wheels, the universal wheels are located behind the straight wheels, and the lifting mechanism is installed and fixed above the middle of the second body. The liftable mobile platform has a fast moving speed, strong walking power, good obstacle crossing ability, high support stability and operation safety, is easy to use, can more comprehensively meet the actual needs of complex and changeable ground conditions in navigation light detection and maintenance operations, and is conducive to improving operation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting platforms, and in particular to a lifting and moving platform for detecting and maintaining navigation lights. Background Art

[0002] In the inspection and maintenance of navigation lights, the lifting and moving platform plays a vital role. Since the navigation lights are distributed in multiple areas such as runways, taxiways, aprons, etc. in the flight area, the installation positions have a large span, and the ground conditions vary significantly. There are certain requirements for the ground environment applicability, moving speed, support stability, and obstacle crossing ability of the lifting and moving platform. At present, the lifting and moving platforms on the market are mainly divided into two categories: wheeled and crawler types according to the different walking chassis. The wheeled lifting platform has a fast moving speed and a relatively simple structure, but has obvious shortcomings in support stability and obstacle crossing ability, and is only suitable for working on flat and hard ground; the crawler lifting platform has obvious advantages in support stability and obstacle crossing ability, but has a slow moving speed, a complex structure, and high operating energy consumption. It is usually only used in field scenes with harsh ground conditions. Therefore, the existing wheeled lifting platform and crawler lifting platform have certain limitations in use, poor applicability, and it is difficult to fully meet the actual needs of complex and changeable ground conditions in the inspection and maintenance of navigation lights.

[0003] At the same time, in order to improve the passability and flexibility of the lifting and moving platform, the size of the walking chassis will be minimized, and usually a number of auxiliary legs will be installed around the walking chassis to improve the supporting performance of the walking chassis. The adjustment of the auxiliary legs mostly requires manual operation, which is time-consuming and labor-intensive, affecting work efficiency. Especially in the inspection and maintenance of navigation lights, the lifting and moving platform often needs to be moved frequently, and the retraction and extension of the auxiliary legs seriously affects the work efficiency. Summary of the invention

[0004] In order to solve the shortcomings existing in the prior art, the present invention provides a liftable mobile platform for the detection and maintenance of navigation lights. The platform adopts a multi-wheeled double-frame design and has the technical advantages of fast moving speed, good obstacle crossing ability, stable support, high operation safety, and convenient use. It can more comprehensively meet the actual needs of complex and changeable ground conditions in the detection and maintenance operations of navigation lights.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] A liftable mobile platform for the inspection and maintenance of navigation lights, comprising a self-propelled chassis, a lifting mechanism and a working platform; characterized in that: the self-propelled chassis comprises a first body and a second body; the first body is supported by four straight wheels distributed in a rectangular shape, the four straight wheels are driving wheels, and a first driving device connected to the driving wheels is installed in the first body; a rotating body capable of horizontal rotation is rotatably fixed in the middle of the first body, and a second driving device for driving the rotating body to rotate is installed in the first body; the second body is located above the first body, the front end of the second body is supported by two steering wheels, the two steering wheels are located in front of the first body, the rear end of the second body is supported by two universal wheels, the two universal wheels are located behind the first body, and the middle part of the second body is fixedly connected to the rotating body so that the second body can rotate relative to the first body; a steering adjustment mechanism for adjusting the steering wheel angle is installed in the second body; the lifting mechanism is installed and fixed above the middle of the second body.

[0007] In a preferred embodiment, the first driving device is composed of a first motor, a reducer and a transmission shaft, the first motor is transmission-connected to the reducer and both are fixed inside the first vehicle body; the reducer is transmission-connected to the axles of four straight-moving wheels via the transmission shaft; a battery is fixed inside the first vehicle body to provide electrical energy for the first motor.

[0008] In a preferred embodiment, the two steering wheels are rotatably fixed to the lower ends of two vertically extending steering arms, and the steering arms are rotatably fixed to the second vehicle body; the steering adjustment mechanism is composed of a third motor, two synchronous wheels fixed to the steering arms, and a synchronous belt; an output wheel is fixed to the output shaft of the third motor, and the output wheel is synchronously connected to the two synchronous wheels via the synchronous belt; a tensioning wheel is fixed to the second vehicle body to provide guidance and tensioning for the synchronous belt.

[0009] In a preferred embodiment, the second driving device is composed of a second motor and a worm gear mechanism, the worm gear mechanism is composed of a worm rotatably fixed on the first vehicle body and a sprocket fixed on the rotating body, the worm is transmission-connected to the second motor; a battery is fixed inside the first vehicle body to provide electrical energy to the second motor.

[0010] In a preferred embodiment, a plurality of fixed support parts are fixed on the first vehicle body, and a number of telescopic support parts equal to the number of fixed support parts are fixed on the second vehicle body, and the telescopic support parts can telescopically move in the up and down directions; when the second vehicle body is in the same direction as the first vehicle body and the second vehicle body is vertically distributed with the first vehicle body, the telescopic support parts can be coupled with the fixed support parts;

[0011] Furthermore, the telescopic support portion is driven by an oil cylinder.

[0012] In a preferred embodiment, the straight-moving wheel is connected to a brake mechanism for braking the straight-moving wheel.

[0013] In a preferred embodiment, the lifting mechanism is one of a hydraulic lifting mechanism, a scissors-type lifting mechanism, a chain lifting mechanism, and a screw nut lifting mechanism.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] The self-propelled chassis of the liftable mobile platform is of multi-wheel double-frame design, and is composed of a first body, a second body, steering wheels, straight wheels and universal wheels; when moving, the first body and the second body are in the same direction, the width of the self-propelled chassis is minimized, and the steering wheels, straight wheels and universal wheels are distributed in sequence from front to back. In this state, the liftable mobile platform has high flexibility, fast moving speed, good obstacle crossing ability, and can be applied to various complex and changeable ground conditions involved in navigation lights. When working, the second car body is vertically staggered with the first car body. In this state, the straight wheels are distributed on the front and rear sides of the bottom of the lifting mechanism, while the steering wheels and universal wheels are distributed on the left and right sides of the bottom of the lifting mechanism respectively. This layout effectively increases the span of the contact point between the self-propelled chassis and the ground, which can significantly improve the load-bearing performance of the self-propelled chassis and help to disperse the load, thereby improving the stability and safety of the liftable mobile platform during operation; the relative position of the first car body and the second car body can be automatically adjusted without manual operation. Compared with the previous use of auxiliary legs to improve the support stability, the use of the liftable mobile platform is more convenient and quick, especially when the second car body is vertically staggered with the first car body, the liftable mobile platform can still move as a whole, which can further improve the work efficiency. In summary, the liftable mobile platform has a fast moving speed, strong walking power, good obstacle crossing ability, stable support, high operation safety, and convenient use. It can more comprehensively meet the actual needs of complex and changeable ground conditions in the inspection and maintenance of navigation lights, and is conducive to improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] Figure 1 It is a structural schematic diagram of a liftable mobile platform.

[0018] Figure 2 It is a schematic structural diagram of the upper side of the first vehicle body.

[0019] Figure 3 It is a schematic structural diagram of the lower side of the first vehicle body.

[0020] Figure 4 It is a schematic diagram of the structure inside the first vehicle body.

[0021] Figure 5 It is a schematic structural diagram of the upper side of the second vehicle body.

[0022] Figure 6 It is a schematic structural diagram of the lower side of the second vehicle body.

[0023] Figure 7 It is a schematic diagram of the structure inside the second vehicle body.

[0024] Figure 8 It is a schematic diagram of the coordination structure between the steering adjustment mechanism and the steering wheel.

[0025] Fig. 9 It is a schematic diagram of an implementation structure of the telescopic support part.

[0026] Fig.10 It is a schematic diagram of the coordination state between the first vehicle body and the second vehicle body.

[0027] Fig.11 It is a schematic diagram of the structure after partial cutaway in the matching state of the first vehicle body and the second vehicle body.

[0028] Fig.12 It is a schematic diagram of the working state of the liftable mobile platform when the directions of the first vehicle body and the second vehicle body are consistent.

[0029] Fig.13 It is a schematic diagram of the state when the first vehicle body and the second vehicle body rotate relative to each other.

[0030] Fig.14 It is a schematic diagram of the working state of the liftable movable platform when the first vehicle body and the second vehicle body are vertically staggered.

[0031] Fig.15 It is a schematic diagram of the moving position of the liftable mobile platform in the working state.

[0032] In the figure, 1, steering wheel, 2, second vehicle body, 3, lifting mechanism, 4, working platform, 5, universal wheel, 6, first vehicle body, 7, straight wheel, 8, rotating body, 9, fixed support part, 10, wheel frame, 11, transmission shaft, 12, reducer, 13, second motor, 14, worm, 15, battery, 16, toothed plate, 17, first motor, 18, rotating seat, 19, steering arm, 20, connecting seat, 21, telescopic support part, 22, universal arm, 23, oil cylinder, 24, third motor, 25, output wheel, 26, tension wheel, 27, synchronous belt, 28, synchronous wheel. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1 As shown, this embodiment discloses a liftable mobile platform for navigation light inspection and maintenance, which is composed of a self-propelled chassis, a lifting mechanism 3 and a working platform 4; the self-propelled chassis includes a first vehicle body 6 and a second vehicle body 2;

[0035] See also Figure 2 , Figure 3 , Figure 4 As shown, the first vehicle body 6 is fixed with four straight wheels 7 via a wheel frame 10, and the four straight wheels 7 are distributed in a rectangular shape, which can provide stable support for the first vehicle body 6; a first driving device is installed in the first vehicle body 6, and the first driving device is transmission-connected with the four straight wheels 7, and the straight wheels 7 serve as driving wheels of the first vehicle body 6; a rotating seat 18 is fixed in the middle of the first vehicle body 6, and a rotating body 8 is rotationally fixed on the rotating seat 18, and the rotating body 8 can rotate horizontally around its central axis, and a second driving device is also installed in the first vehicle body 6, and the second driving device is transmission-connected with the rotating body 8 to drive the rotating body 8 to rotate;

[0036] See also Figure 5 , Figure 6 , Fig.10 , Fig.11 As shown, the second vehicle body 2 is located above the first vehicle body 6, the front end of the second vehicle body 2 is supported by two steering wheels 1, the two steering wheels 1 are located in front of the first vehicle body 6, and the rear end of the second vehicle body 2 is supported by two universal wheels 5, the two universal wheels 5 are located behind the first vehicle body 6. Specifically, two universal arms 22 are rotatably fixed to the rear of the second vehicle body 2, and the universal wheels 5 are installed on the universal arms 22; a connecting seat 20 is fixed to the middle of the second vehicle body 2, and the second vehicle body 2 is fixedly connected to the rotating body 8 via the connecting seat 20, so that the second vehicle body 2 can rotate relative to the first vehicle body 6; a steering adjustment mechanism for adjusting the angle of the steering wheel 1 is installed in the second vehicle body 2;

[0037] See also Figure 1As shown, the lifting mechanism 3 is fixed above the middle part of the second vehicle body 2. The lifting mechanism 3 can select a structure commonly used in existing lifting mobile platforms, such as a hydraulic lifting mechanism, a scissors-type lifting mechanism, a chain lifting mechanism, and a screw nut lifting mechanism; the working platform 4 is fixedly supported by the lifting mechanism 3, and the up and down positions are adjusted by the lifting mechanism 3.

[0038] In actual use, Figure 1 As shown, when the second vehicle body 2 is in the same direction as the first vehicle body 6, the steering wheel 1, the straight wheel 7 and the universal wheel 5 are distributed in sequence from front to back, the straight wheel 7 is responsible for providing drive, and the steering wheel 1 is responsible for controlling the moving direction, so that the liftable mobile platform can move quickly and flexibly so as to reach the working place in time; because when the second vehicle body 2 is in the same direction as the first vehicle body 6, the second vehicle body 2 is superimposed on the first vehicle body 6, so that the width of the self-propelled chassis is minimized, thereby significantly enhancing the passability and flexibility of the liftable mobile platform, so that it can shuttle in a narrower and more complex space; at the same time, the straight wheel 7, the steering wheel 1 and the universal wheel 5 have clear division of labor and work together, which not only provides a more stable and balanced support for the self-propelled chassis, but also significantly improves the walking power and obstacle-crossing ability of the liftable mobile platform; thereby, the liftable mobile platform can be better adapted to the complex and changeable ground conditions involved in the navigation lights.

[0039] See also Fig.12 As shown, during work, if the working height is low and the ground is hard, there is no need to adjust the direction of the second vehicle body 2 and the first vehicle body 6, that is, the direction of the second vehicle body 2 and the first vehicle body 6 remains consistent, and the lifting mechanism 3 is used to adjust the working platform 4 to the expected height to carry out the operation, thereby improving the working efficiency.

[0040] See also Fig.13 , Fig.14As shown, when working at a high working height or the ground is relatively soft, in order to avoid the shaking of the working platform 4 and improve the working stability, the direction of the second vehicle body 2 can be adjusted according to the situation. First, the direction of the two steering wheels 1 is adjusted, and then the second driving device is used to drive the rotating body 8 to rotate. Since the two steering wheels 1 at the front end of the second vehicle body 2 are in a steering state, the universal wheels 5 at the rear end of the second vehicle body 2 have a follow-up property, so that the second vehicle body 2 can rotate synchronously with the rotating body 8, thereby realizing the direction adjustment of the second vehicle body 2, and finally making the second vehicle body 2 and the first vehicle body 6 maintain a vertical staggered distribution; in this state, the straight wheels 7 are distributed on the front and rear sides of the bottom of the lifting mechanism 3, and the steering wheels 1 and the universal wheels 5 are respectively distributed on the left and right sides of the bottom of the lifting mechanism 3. This layout effectively increases the span of the contact point between the self-propelled chassis and the ground, and can achieve the same effect as the existing lifting and moving platform opening the auxiliary support legs, thereby significantly improving the bearing capacity of the self-propelled chassis and facilitating load dispersion, thereby greatly improving the stability and safety of the lifting and moving platform when working.

[0041] In addition, if Fig.15 As shown, when the second vehicle body 2 and the first vehicle body 6 are kept in a vertically staggered distribution, the position of the entire liftable movable platform can still be adjusted in a small range according to actual work needs. For example, when multiple horizontal rows of lights installed on the same crossbar are checked or repaired one by one, first, the direction of the steering wheel 1 is adjusted to make the steering wheel 1 consistent with the direction of the straight wheel 7, and then the straight wheel 7 provides drive, and the liftable movable platform can be smoothly moved as a whole, so as to realize the overall position adjustment of the liftable movable platform and improve the work efficiency.

[0042] In the present liftable mobile platform, the straight-running wheels are only used as driving wheels without the need for steering function. Therefore, the straight-running wheels and the first driving device can be implemented with a relatively simple structure, such as Figure 3 , Figure 4 In the illustrated embodiment, the first driving device is composed of a first motor 17, a reducer 12 and a transmission shaft 11; the first motor 17 is transmission-connected to the reducer 12 and both are fixed inside the first vehicle body 6; the reducer 12 is transmission-connected to the wheel axles of the four straight-moving wheels 7 via the transmission shaft 11; a battery 15 for providing electrical energy to the first motor 17 is fixed inside the first vehicle body 6; thus, the four straight-moving wheels 7 serve as driving wheels, powered by the first motor 17, and can drive the overall movement of the liftable mobile platform.

[0043] In the present liftable mobile platform, the steering wheel has the function of steering, but not as a driving wheel. Therefore, the steering wheel and the steering adjustment mechanism can refer to the common methods in the prior art and select a relatively simple structure for implementation to achieve the expected function. In addition, if Fig.13As shown, when the second vehicle body 2 rotates relative to the first vehicle body 6, the best state of the steering wheel 1 is to turn 90 degrees, thereby making it easier for the second vehicle body 2 to turn. Obviously, the steering adjustment mechanism commonly used in the prior art can usually only make the steering wheel 1 turn less than 90 degrees, which will cause a greater obstacle to the rotation of the second vehicle body 2. Figure 6 , Figure 7 , Figure 8 In the illustrated embodiment, a preferred structure of a steering wheel 1 and a steering adjustment mechanism is provided, specifically:

[0044] The two steering wheels 1 are rotatably fixed to the lower ends of two vertically extending steering arms 19, and the steering arms 19 are rotatably fixed to the second vehicle body 2; the steering adjustment mechanism is composed of a third motor 24, two synchronous wheels 28 fixed to the steering arms 19, and a synchronous belt 27; an output wheel 25 is fixed to the output shaft of the third motor 24, and the output wheel 25 is synchronously connected with the two synchronous wheels 28 via the synchronous belt 27; a tensioning wheel 26 is fixed to the second vehicle body 2 for providing guidance and tensioning for the synchronous belt 27; thus, the two steering wheels 1 can be driven to steer synchronously through the third motor 24, and steering at any angle can be achieved.

[0045] In the present liftable mobile platform, the second driving device is used to drive the rotating body to rotate and move. Referring to the prior art, the second driving device has a variety of implementation structures. For example, the expected effect can be achieved by a motor device in combination with a gear transmission mechanism, or by a cylinder in combination with a rack and pinion mechanism. Figure 4 In the embodiment shown, a preferred structure is provided, specifically:

[0046] The second driving device is composed of a second motor 13 and a worm gear mechanism, wherein the worm gear mechanism is composed of a worm 14 rotatably fixed on the first vehicle body 6 and a toothed plate 16 fixed on the rotating body 8, wherein the worm 14 is in driving connection with the second motor 13; a battery 15 for providing electric energy to the second motor 13 is fixed inside the first vehicle body 6;

[0047] Thus, the second motor 13 can drive the rotating body 8 to rotate through the worm gear mechanism. Since the worm gear mechanism itself can achieve a good deceleration effect, there is no need to additionally configure a deceleration mechanism. At the same time, since the worm gear mechanism itself has a self-locking function, the rotating body 8 can be stably maintained in the adjusted position, and there is no need to additionally configure a locking mechanism to prevent the rotating body 8 from rotating on its own. Therefore, when the second drive device adopts this design, the structure is simpler and easier to implement.

[0048] See also Figure 4 , Figure 7 , Fig.11As shown, in the present liftable mobile platform, a plurality of fixed support parts 9 are fixed on the first car body 6, and a number of telescopic support parts 21 equal to the number of the fixed support parts 9 are fixed on the second car body 2, and the telescopic support parts 21 can be telescopically moved in the up and down directions; when the second car body 2 is in the same direction as the first car body 6 and the second car body 2 is vertically distributed with the first car body 6, the telescopic support parts 21 can be coupled with the fixed support parts 9;

[0049] Therefore, when the liftable mobile platform is moving or working, the telescopic support part 21 is coupled with the fixed support part 9, which can prevent the first vehicle body 6 and the second vehicle body 2 from rotating relative to each other on the one hand, and on the other hand, the first vehicle body 6 can provide a more stable and balanced support for the second vehicle body 2 through the coupled telescopic support part 21 and the fixed support part 9, so as to improve the carrying capacity of the self-propelled chassis, and especially improve the stability of the liftable mobile platform during operation; when adjusting the relative position of the second vehicle body 2 and the first vehicle body 6, the telescopic support part 21 is adjusted to the retracted state, at which time the telescopic support part 21 and the fixed support part 9 are in a separated state, and do not hinder the relative rotation of the second vehicle body 2 and the first vehicle body 6; further, as Fig. 9 As shown, the telescopic support portion 21 is driven by a cylinder 23 .

[0050] In the present liftable mobile platform, the straight-moving wheels are connected to a brake mechanism (not shown) for braking the straight-moving wheels; the specific structure of the brake mechanism and the specific coordination method with the straight-moving wheels can be implemented in a common manner in the prior art; thus, when the liftable mobile platform is used for operation, the straight-moving wheels can be braked by the brake mechanism to prevent the liftable mobile platform from moving.

[0051] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0053] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A liftable mobile platform for navigation light inspection and maintenance, comprising a self-propelled chassis, a lifting mechanism and a working platform; characterized in that: The self-propelled chassis comprises a first body and a second body; the first body is supported by four straight wheels distributed in a rectangular shape, the four straight wheels are driving wheels, and a first driving device connected to the driving wheels is installed in the first body; a slewing body capable of horizontal rotation is rotatably fixed in the middle of the first body, and a second driving device for driving the slewing body to rotate is installed in the first body; the second body is located above the first body, the front end of the second body is supported by two steering wheels, the two steering wheels are located in front of the first body, the rear end of the second body is supported by two universal wheels, the two universal wheels are located behind the first body, and the middle part of the second body is fixedly connected to the slewing body, so that the second body can rotate relative to the first body; a steering adjustment mechanism for adjusting the steering wheel angle is installed in the second body; the lifting mechanism is installed and fixed above the middle of the second body; The two steering wheels are rotatably fixed to the lower ends of two vertically extending steering arms, and the steering arms are rotatably fixed to the second vehicle body; the steering adjustment mechanism is composed of a third motor, two synchronous wheels fixed to the steering arms, and a synchronous belt; an output wheel is fixed to the output shaft of the third motor, and the output wheel is synchronously connected to the two synchronous wheels via the synchronous belt; a tensioning wheel is fixed to the second vehicle body to provide guidance and tensioning for the synchronous belt.

2. The liftable mobile platform for testing and maintaining navigation lights according to claim 1 is characterized in that: The first driving device is composed of a first motor, a reducer and a transmission shaft. The first motor is connected to the reducer through transmission and both are fixed inside the first vehicle body. The reducer is connected to the axles of four straight-moving wheels through the transmission shaft. A battery is fixed inside the first vehicle body to provide electrical energy for the first motor.

3. The liftable mobile platform for testing and maintaining navigation lights according to claim 1 is characterized in that: The second driving device is composed of a second motor and a worm gear mechanism. The worm gear mechanism is composed of a worm rotatably fixed on the first vehicle body and a toothed plate fixed on the rotating body. The worm is transmission-connected to the second motor. A battery is fixed inside the first vehicle body to provide electrical energy to the second motor.

4. The liftable mobile platform for testing and maintaining navigation lights according to claim 1 is characterized in that: A plurality of fixed support parts are fixed on the first vehicle body, and a number of telescopic support parts equal to the number of the fixed support parts are fixed on the second vehicle body, and the telescopic support parts can be telescopically moved in the up and down directions; when the second vehicle body is in the same direction as the first vehicle body and the second vehicle body is vertically distributed to the first vehicle body, the telescopic support part can be coupled with the fixed support part.

5. The liftable mobile platform for testing and maintaining navigation lights according to claim 4 is characterized in that: The telescopic support part is driven by an oil cylinder.

6. The liftable mobile platform for testing and maintaining navigation lights according to claim 1 is characterized in that: The straight-moving wheel is connected with a brake mechanism for braking the straight-moving wheel.

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