Short lifting obstacle crossing chassis

Abstract

The invention discloses a short type lifting obstacle crossing chassis, and relates to the technical field of aerospace, the short type lifting obstacle crossing chassis comprises a bottom plate and at least two multi-stage folding lifting modules arranged on the bottom plate, and each multi-stage folding lifting module comprises a driving structure, a multi-stage folding lifting structure and wheels; the driving structure can drive the multi-stage folding lifting structure to extend or fold to achieve lifting of the bottom plate, and the wheels are arranged on the multi-stage folding lifting structure. The short lifting obstacle crossing chassis can pass through narrow and cross obstacles.

Description

Technical Field

[0001] The present invention relates to the technical field of aerospace, and particularly to a low-profile lifting and obstacle-crossing chassis. Background Art

[0002] When an aircraft is in flight, various foreign objects may enter the intake duct, causing damage to the internal structure. Therefore, before and after flight, equipment maintenance personnel need to inspect each channel of the aircraft to ensure that there are no foreign objects and structural damages inside, which may cause accidents.

[0003] When inspecting each channel of the aircraft, special equipment maintenance personnel need to drill into the channel for inspection. The space inside the channel is narrow and has a smooth protective coating. There are protective structures in some special channels, and only inspectors with a smaller build can drill into the channels for inspection. Summary of the Invention

[0004] The purpose of the present invention is to provide a low-profile lifting and obstacle-crossing chassis to solve the problems existing in the above-mentioned prior art, and it can pass through narrow spaces and cross obstacles.

[0005] To achieve the above purpose, the present invention provides the following solution:

[0006] The present invention provides a low-profile lifting and obstacle-crossing chassis, including: a bottom plate and at least two multi-stage folding and lifting modules arranged on the bottom plate. The multi-stage folding and lifting module includes a driving structure, a multi-stage folding and lifting structure, and wheels. The driving structure can drive the multi-stage folding and lifting structure to extend or fold to realize the lifting of the bottom plate, and the wheels are arranged on the multi-stage folding and lifting structure.

[0007] Preferably, the driving structure includes a servo motor, and the driving structure drives the multi-stage folding and lifting structure to extend or fold through a transmission structure.

[0008] Preferably, the transmission structure includes a gear and a rack. The power output end of the servo motor is in transmission connection with the gear, the gear meshes with the rack, and the rack is used to be arranged on the multi-stage folding and lifting structure.

[0009] Preferably, the multi-stage folding and lifting structure includes a first-stage slider, a second-stage slider, a third-stage slider, and a fourth-stage slider. The first-stage slider is connected to the bottom plate, the driving structure is in transmission connection with the second-stage slider, the second-stage slider is respectively slidably connected to the first-stage slider and the third-stage slider, the fourth-stage slider is slidably connected to the third-stage slider, the fourth-stage slider is connected to the wheels, and the driving structure drives the second-stage slider to move, thereby realizing that the first-stage slider and the third-stage slider respectively slide along the second-stage slider, and the fourth-stage slider slides along the third-stage slider respectively.

[0010] Preferably, the movement directions of the secondary slider, the sliding directions of the primary slider, the tertiary slider, and the quaternary slider driven by the driving structure are all arranged in parallel.

[0011] Preferably, the multi-stage folding lifting structure further includes a first synchronous pulley and a second synchronous pulley. The first synchronous pulley and the second synchronous pulley are connected by the first synchronous belt. The first synchronous belt is respectively connected to the primary slider and the tertiary slider. The first synchronous pulley and the second synchronous pulley are both arranged on the secondary slider and rotatably connected to the secondary slider.

[0012] Preferably, the multi-stage folding lifting structure further includes a third synchronous pulley and a fourth synchronous pulley. The third synchronous pulley and the fourth synchronous pulley are connected by the second synchronous belt. The second synchronous belt is respectively used to connect to the quaternary slider and the secondary slider. The third synchronous pulley and the fourth synchronous pulley are both arranged on the tertiary slider and rotatably connected to the tertiary slider.

[0013] Preferably, the first synchronous pulley is located at the upper end of the secondary slider, the second synchronous pulley is located at the lower end of the secondary slider, the third synchronous pulley is located at the upper end of the tertiary slider, and the fourth synchronous pulley is located at the lower end of the tertiary slider.

[0014] Preferably, the multi-stage folding lifting modules are symmetrically arranged on the bottom plate.

[0015] Preferably, a camera is further arranged on the bottom plate.

[0016] The present invention has achieved the following technical effects compared with the prior art:

[0017] The present invention can realize the lifting of the bottom plate through the multi-stage folding lifting module, can drill through narrow channels, and when encountering obstacles, can lift the bottom plate through the multi-stage folding lifting module to cross the obstacles. The present invention can liberate manual labor, can carry inspection instruments to cross obstacles, and improve the inspection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Isometric view of the low-profile lifting and obstacle-crossing chassis of the present invention (folded state);

[0020] Figure 2 Side view of the low-profile lifting and obstacle-crossing chassis of the present invention (folded state);

[0021] Figure 3 Schematic diagram of the minimum height of the low-profile lifting and obstacle-crossing chassis of the present invention (folded state);

[0022] Figure 4 Axonometric view of the low-profile lifting and obstacle-crossing chassis of the present invention (lifting state);

[0023] Figure 5 Side view of the low-profile lifting and obstacle-crossing chassis of the present invention (lifting state);

[0024] Figure 6 Schematic diagram of the maximum height of the low-profile lifting and obstacle-crossing chassis of the present invention (lifting state);

[0025] Figure 7 Axonometric view of the multi-stage folding and lifting module of the present invention Figure 1 ;

[0026] Figure 8 Axonometric view of the multi-stage folding and lifting module of the present invention Figure 2 ;

[0027] Figure 9 Schematic diagram of the low-profile lifting and obstacle-crossing chassis of the present invention passing through a narrow space;

[0028] Figure 10 Schematic diagram of the low-profile lifting and obstacle-crossing chassis of the present invention crossing an obstacle;

[0029] In the figure: 100 - low-profile lifting and obstacle-crossing chassis, 1 - multi-stage folding and lifting module, 2 - bottom plate, 3 - servo, 4 - gear transfer structure, 5 - gear, 6 - rack, 7 - secondary slider, 8 - primary slider, 9 - first synchronous belt pressure plate, 10 - first synchronous belt pulley, 11 - first rotating shaft, 12 - first synchronous belt pulley fixing part, 13 - first synchronous belt, 14 - first synchronous belt fixing part, 15 - second synchronous belt pressure plate, 16 - second synchronous belt pulley fixing part, 17 - second synchronous belt pulley, 18 - second rotating shaft, 19 - third synchronous belt pulley, 20 - third rotating shaft, 21 - third synchronous belt pulley fixing part, 22 - third synchronous belt pressure plate, 23 - second synchronous belt, 24 - second synchronous belt fixing part, 25 - fourth synchronous belt pressure plate, 26 - fourth synchronous belt pulley fixing part, 27 - fourth rotating shaft, 28 - fourth synchronous belt pulley, 29 - tertiary slider, 30 - quaternary slider, 31 - wheel. Detailed implementation mode

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments 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.

[0031] The purpose of the present invention is to provide a low-profile lifting obstacle-crossing chassis to solve the problems existing in the above-mentioned prior art and to be able to pass through narrow and cross obstacles.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 10 As shown, this embodiment provides a low-profile lifting obstacle-crossing chassis 100, including: a base plate 2 and at least two multi-stage folding lifting modules 1 arranged on the base plate 2, the multi-stage folding lifting module 1 includes a driving structure, a multi-stage folding lifting structure and wheels 31, the driving structure can drive the multi-stage folding lifting structure to extend or fold to realize the lifting of the base plate 2, and the wheels 31 are arranged on the multi-stage folding lifting structure.

[0034] Specifically, in this embodiment, the base plate 2 is the basis of the low-profile lifting obstacle-crossing chassis 100, and a plurality of multi-stage folding lifting modules 1 are symmetrically arranged on both sides of the base plate 2. In this embodiment, six multi-stage folding lifting modules 1 are preferably arranged, with three multi-stage folding lifting modules 1 arranged on each side.

[0035] In this embodiment, the driving structure includes a steering gear 3, which is arranged on the bottom plate 2. The driving structure drives the multi-stage folding lifting structure to extend or fold through the transmission structure.

[0036] In this embodiment, the transmission structure includes a gear 5 and a rack 6. The power output end of the steering gear 3 is connected to the gear 5 through the gear transfer structure 4. The gear 5 is meshed with the rack 6. The rack 6 is used to be arranged on the secondary slider 7 of the multi-stage folding lifting structure. The steering gear 3 drives the gear 5 to rotate, thereby driving the rack 6 and the secondary slider 7 to slide up and down.

[0037] In this embodiment, the multi-stage folding and lifting structure includes a primary slider 8, a secondary slider 7, a tertiary slider 29 and a quaternary slider 30. The primary slider 8 is connected to the bottom plate 2, and the rack 6 is installed on one side of the secondary slider 7. The front of the secondary slider 7 and the back of the primary slider 8 are nested and slid together, the back of the secondary slider 7 and the tertiary slider 29 are nested and slid together, the front of the quaternary slider 30 and the back of the tertiary slider 29 are nested and slid together, and the back of the quaternary slider 30 is connected to the wheel 31. The driving structure drives the secondary slider 7 to move, thereby realizing that the primary slider 8 and the tertiary slider 29 slide along the secondary slider 7 respectively, and the fourth slider 30 slides along the tertiary slider 29 respectively; the driving structure drives the movement direction of the secondary slider 7, the sliding direction of the primary slider 8, the sliding direction of the tertiary slider 29 and the sliding direction of the fourth slider 30 are all set in parallel.

[0038] In this embodiment, the multi-stage folding and lifting structure also includes a first synchronous pulley 10 and a second synchronous pulley 17, and the first synchronous pulley 10 and the second synchronous pulley 17 are connected through the first synchronous belt 13. The first synchronous belt 13 is connected to the first-stage slider 8 through a first synchronous belt pressure plate 9 arranged on one side of the first-stage slider 8. The first synchronous belt 13 is fixed to the first synchronous belt fixing member 14 arranged on one side of the third-stage slider 29 through the second synchronous belt pressure plate 15, thereby realizing the connection between the first synchronous belt 13 and the third-stage slider 29. The other side of the second-stage slider 7 is provided with a first synchronous pulley fixing member 12 and a second synchronous pulley fixing member 16. The first synchronous pulley 10 is rotatably connected to the first synchronous pulley fixing member 12 through the first rotating shaft 11, and the second synchronous pulley 17 is rotatably connected to the second synchronous pulley fixing member 16 through the second rotating shaft 18, thereby realizing the first synchronous pulley 10 and the second synchronous pulley 17 are respectively rotatably connected to the second-stage slider 7.

[0039] In this embodiment, the multi-stage folding lifting structure also includes a third synchronous pulley 19 and a fourth synchronous pulley 28. The third synchronous pulley 19 and the fourth synchronous pulley 28 are connected through the second synchronous belt 23. The second synchronous belt 23 is fixed to the rack 6 through the third synchronous belt pressure plate 22 to realize the connection between the second synchronous belt 23 and the secondary slider 7. The second synchronous belt 23 is fixed to the second synchronous belt fixing member 24 arranged on the side of the fourth slider 30 through the fourth synchronous belt pressure plate 25 to realize the connection between the second synchronous belt 23 and the fourth slider 30. A third synchronous pulley fixing member 21 and a fourth synchronous pulley fixing member 26 are arranged on one side of the third slider 29. The third synchronous pulley 19 is rotationally connected to the third synchronous pulley fixing member 21 through the third rotating shaft 20. The fourth synchronous pulley 28 is rotationally connected to the fourth synchronous pulley fixing member 26 through the fourth rotating shaft 27, thereby realizing that the third synchronous pulley 19 and the fourth synchronous pulley 28 are rotationally connected to the third slider 29 respectively.

[0040] In this embodiment, the first synchronous pulley 10 is located at the upper end of the secondary slider 7, the second synchronous pulley 17 is located at the lower end of the secondary slider 7, the third synchronous pulley 19 is located at the upper end of the tertiary slider 29, and the fourth synchronous pulley 28 is located at the lower end of the tertiary slider 29.

[0041] In this embodiment, a camera is further provided on the bottom plate 2, enabling close observation.

[0042] When this embodiment is lifted, the driving structure drives the gear 5 to rotate. The gear 5 meshes with the rack 6, thereby enabling the gear 5 to move upward along the rack 6. As a result, the bottom plate 2 and the primary slider 8 move upward from the lower end of the secondary slider 7 to the upper end of the secondary slider 7. Meanwhile, the first synchronous belt 13 moves, and the second synchronous belt pressing plate 15 moves from the upper end of the secondary slider 7 to the lower end of the secondary slider 7, thereby driving the tertiary slider 29 to slide upward. At the same time, the third synchronous belt pressing plate 22 moves from the lower end of the tertiary slider 29 to the upper end of the tertiary slider 29 to achieve lifting. When this embodiment is folded, the driving structure drives the gear 5 to rotate in the opposite direction. The gear 5 meshes with the rack 6, thereby enabling the gear 5 to move downward along the rack 6. As a result, the bottom plate 2 and the primary slider 8 move downward from the upper end of the secondary slider 7 to the lower end of the secondary slider 7. Meanwhile, the first synchronous belt 13 moves in the opposite direction, and the second synchronous belt pressing plate 15 moves from the lower end of the secondary slider 7 to the upper end of the secondary slider 7, thereby driving the tertiary slider 29 to slide downward. At the same time, the third synchronous belt pressing plate 22 moves from the upper end of the tertiary slider 29 to the lower end of the tertiary slider 29 to achieve folding.

[0043] In this embodiment, the multi-stage folding and lifting module 1 can achieve the lifting of the bottom plate 2. The lifting height of the multi-stage folding and lifting module 1 can reach 140 mm, and the folding height of the multi-stage folding and lifting module 1 can reach 60 mm. At this time, the overall height of the obstacle-crossing chassis is approximately 72 mm. This embodiment can drill through narrow channels. When encountering obstacles, the bottom plate 2 can be lifted through the multi-stage folding and lifting module 1 to cross the obstacles. This embodiment can liberate manual labor, can carry inspection instruments to cross obstacles, and improve the inspection effect.

[0044] In the present invention, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. At the same time, for those of ordinary skill in the art, based on the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A low-profile lifting obstacle-crossing chassis, characterized in that: include: A base plate and at least two multi-stage folding lifting modules arranged on the base plate, the multi-stage folding lifting module comprising a driving structure, a multi-stage folding lifting structure and wheels, the driving structure can drive the multi-stage folding lifting structure to extend or fold to realize the lifting of the base plate, and the wheels are arranged on the multi-stage folding lifting structure.

2. The low-profile lifting obstacle-crossing chassis according to claim 1 is characterized in that: The driving structure comprises a steering gear, and the driving structure drives the multi-stage folding lifting structure to extend or fold through a transmission structure.

3. The low-profile lifting obstacle-crossing chassis according to claim 2 is characterized in that: The transmission structure includes a gear and a rack. The power output end of the steering gear is transmission-connected with the gear. The gear is meshed with the rack. The rack is used to be arranged on the multi-stage folding lifting structure.

4. The low-profile lifting obstacle-crossing chassis according to claim 1 is characterized in that: The multi-stage folding lifting structure includes a primary slider, a secondary slider, a tertiary slider and a fourth slider, the primary slider is connected to the bottom plate, the driving structure is transmission-connected to the secondary slider, the secondary slider is slidingly connected to the primary slider and the tertiary slider respectively, the fourth slider is slidingly connected to the third slider, the fourth slider is connected to the wheel, and the driving structure drives the secondary slider to move, thereby realizing that the primary slider and the third slider slide along the secondary slider respectively, and the fourth slider slides along the third slider respectively.

5. The low-profile lifting obstacle-crossing chassis according to claim 4 is characterized in that: The driving structure drives the movement direction of the secondary slider, the sliding direction of the primary slider, the sliding direction of the tertiary slider and the sliding direction of the quaternary slider to be arranged in parallel.

6. The low-profile lifting obstacle-crossing chassis according to claim 4 is characterized in that: The multi-stage folding lifting structure also includes a first synchronous belt pulley and a second synchronous belt pulley, the first synchronous belt pulley and the second synchronous belt pulley are connected through the first synchronous belt transmission, the first synchronous belt is respectively connected to the first-stage slider and the third-stage slider, and the first synchronous belt pulley and the second synchronous belt pulley are both used to be set on the second-stage slider and are rotatably connected to the second-stage slider.

7. The low-profile lifting obstacle-crossing chassis according to claim 6, characterized in that: The multi-stage folding lifting structure also includes a third synchronous belt pulley and a fourth synchronous belt pulley, and the third synchronous belt pulley and the fourth synchronous belt pulley are connected through the second synchronous belt transmission, and the second synchronous belt is used to connect with the fourth-stage slider and the second-stage slider respectively, and the third synchronous belt pulley and the fourth synchronous belt pulley are both used to be arranged on the third-stage slider and are rotatably connected with the third-stage slider.

8. The low-profile lifting obstacle-crossing chassis according to claim 7, characterized in that: The first synchronous belt pulley is located at the upper end of the secondary slider, the second synchronous belt pulley is located at the lower end of the secondary slider, the third synchronous belt pulley is located at the upper end of the tertiary slider, and the fourth synchronous belt pulley is located at the lower end of the tertiary slider.

9. The low-profile lifting obstacle-crossing chassis according to claim 1, characterized in that: The multi-stage folding lifting modules are symmetrically arranged on the bottom plate.

10. The low-profile lifting obstacle-crossing chassis according to claim 1, characterized in that: A camera is also arranged on the bottom plate.

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