Aviation ladder and aircraft

Abstract

The aviation ladder comprises a base, a ladder assembly and a supporting assembly, the base is supported on a supporting plane, a first end of the ladder assembly is connected with a first surface of the base, a second end of the ladder assembly is connected with the aircraft, the first surface is a surface far away from the supporting plane, and the supporting assembly is arranged on the base. The supporting assembly comprises a fixing part arranged on the base and a supporting part arranged on the fixing part, the length of the supporting part in the first direction can be adjusted so as to improve the supporting stability between the base and the supporting plane, and the first direction is the direction from the fixing part to the supporting plane. The aviation ladder is provided with the supporting part with the length adjustable in the first direction, so that by adjusting the length of the supporting part, the supporting part abuts against the supporting plane or is at least partially embedded into the supporting plane, the supporting stability between the base and the supporting plane is improved, the aviation ladder is prevented from toppling over in the using process, and the service life of the aviation ladder is prolonged. And the safety and the reliability of the aviation ladder are improved.

Description

Technical Field

[0001] The utility model relates to the field of aviation equipment, and particularly relates to an aviation ladder and an aircraft. Background Art

[0002] Aviation ladders are widely used in the field of aviation technology. For example, when ground maintenance personnel perform inspections and maintenance on an aircraft, they often need to climb to the position to be inspected with the help of an aviation ladder. Also, for example, when passengers board or disembark the aircraft or in the case of an emergency evacuation of passengers in case of an accident, boarding or disembarking also needs to be carried out through an aviation ladder.

[0003] However, in the related art, the stability of the aviation ladder is poor, and it is prone to shaking or even tipping over during use due to reasons such as uneven ground and uneven force, which has an adverse impact on the personal safety of users. Summary of the Invention

[0004] In order to overcome the above-mentioned drawbacks of the prior art, the present application aims to provide an aviation ladder and an aircraft.

[0005] According to a first aspect of the present application, there is provided an aviation ladder, comprising:

[0006] A base, supported on a support plane;

[0007] A ladder frame, a first end of the ladder frame is connected to a first surface of the base, a second end of the ladder frame is connected to the aircraft, and the first surface is a surface away from the support plane;

[0008] A support assembly, disposed on the base, the support assembly includes a fixing portion disposed on the base and a support portion disposed on the fixing portion, the length of the support portion in a first direction is adjustable to improve the support stability between the base and the support plane;

[0009] Wherein, the first direction is a direction from the fixing portion towards the support plane.

[0010] In a possible implementation manner, the support assembly further includes a driving portion, an output end of the driving portion is connected to the support portion to drive the support portion to extend or shorten in the first direction to adjust the length of the support portion in the first direction.

[0011] In a possible implementation manner, the fixing portion is connected to the first surface and extends in a direction away from the base, the driving portion is disposed on a first side of the fixing portion, the support portion is disposed on a second side opposite to the first side, and the output end of the driving portion passes through the fixing portion and is connected to the support portion, wherein the first side is a side away from the support plane.

[0012] In a possible implementation, a support base plate is further provided at one end of the support part close to the support plane, and the projected area of the support base plate on the support plane is larger than the projected area of the support part on the support plane.

[0013] In a possible implementation, the base is further provided with an anti-slip part, and the anti-slip part is provided on the second surface of the base close to the support plane.

[0014] In a possible implementation, a rotating seat is provided on the first surface, and a rotating part rotatably connected to the rotating seat is provided at the first end of the ladder frame, so that the ladder frame is rotatably connected to the first surface.

[0015] In a possible implementation, the ladder frame includes a first ladder frame and a second ladder frame, and at least part of the second ladder frame is slidably connected to the first ladder frame to adjust the length of the ladder frame.

[0016] In a possible implementation, the first ladder frame is provided with a first mating part, the second ladder frame is provided with a second mating part, the first mating part and the second mating part cooperate, and the ladder frame is further provided with an adjusting part, and the adjusting part is used to make the first mating part move relative to the second mating part to realize the relative sliding of the second ladder frame and the first ladder frame.

[0017] In a possible implementation, the first mating part includes a screw rod and a lifting part connected to one end of the screw rod, the lifting part is connected to the second mating part, and the adjusting part drives the screw rod to rotate, so as to drive the second ladder frame to slide relative to the first ladder frame through the sliding of the lifting part.

[0018] According to a second aspect of the present application, an aircraft is provided, including the aviation ladder as described in the first aspect of the present application, and the aviation ladder is detachably connected to the aircraft.

[0019] The advantages of the present application are as follows: The aviation ladder of the present application is provided with a support part whose length can be adjusted along the first direction. By adjusting the length of the support part, the support part is made to abut against the support plane or at least partially embedded in the support plane, so as to improve the support stability between the base and the support plane, avoid the aviation ladder from tipping over during use, and improve the safety and reliability of the aviation ladder.

[0020] Other features and advantages of the present application will be described in the following description, and, in part, will become apparent from the description or will be understood by implementing the present application. The objectives and other advantages of the present application can be achieved and obtained through the structures specifically pointed out in the description, claims and drawings. Description of the Drawings

[0021] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present application and, together with the description, are used to explain the principles of the present application. In these drawings, like reference numerals are used to identify like elements. The drawings in the following description are some embodiments of the present application, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is one of the schematic structural diagrams of an airstair shown according to an exemplary embodiment.

[0023] Figure 2 is the second of the schematic structural diagrams of an airstair shown according to an exemplary embodiment.

[0024] Figure 3 is the third of the schematic structural diagrams of an airstair shown according to an exemplary embodiment.

[0025] Figure 4 is Figure 3 a partial enlarged view of area A in

[0026] Figure 5 is the schematic structural diagram of a ladder frame shown according to an exemplary embodiment.

[0027] Figure 6 is the schematic structural diagram of a ladder frame and an adjusting part shown according to an exemplary embodiment. Detailed Description of the Embodiments

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application. It should be noted that, without conflict, the embodiments and the feature vectors in the embodiments of the present application can be arbitrarily combined with each other.

[0029] Airstairs are widely used in the field of aviation technology. For example, when ground maintenance personnel perform inspections and maintenance on an aircraft, they often need to climb to the position to be inspected with the help of an airstair. Another example is that during passenger boarding, disembarking, or in case of an emergency evacuation of passengers in case of an accident, boarding or disembarking also needs to be carried out through an airstair.

[0030] However, in the related art, aviation ladders have poor stability and are prone to shaking or even tipping over during use due to unstable ground, uneven force, etc., which has an adverse effect on the personal safety of users.

[0031] To solve the above-mentioned problems, the present application provides an aviation ladder and an aircraft. The aviation ladder of the present application is provided with a support portion whose length can be adjusted along a first direction, so that the support portion can be abutted against the support plane or at least partially embedded in the support plane by adjusting the length of the support portion, so as to improve the supporting stability between the base and the support plane, avoid the aviation ladder from tipping over during use, and improve the safety and reliability of the aviation ladder.

[0032] According to an exemplary embodiment, Figures 1-6 As shown, an embodiment of the present application provides an aviation ladder, which can be used in scenarios such as ground maintenance personnel inspecting an aircraft (not shown in the figure), boarding and disembarking passengers, and emergency evacuation of passengers. The aircraft can be, for example, an airplane, an airship, a drone, a manned spacecraft, or other aerospace vehicle. The aviation ladder and the aircraft are detachably connected. The aviation ladder can be moved by ground crew to a designated position and connected to the aircraft for use, or it can be carried in the aircraft and installed when in use. The embodiment of the present application does not impose too many restrictions on the use scenarios and specific methods of the aviation ladder.

[0033] The aviation ladder comprises a base 10, a support assembly 20 disposed on the base 10, and a ladder frame 30 connected to the base 10 at one end. The base 10 is supported on a support plane (not shown in the figure), and the support plane can be, for example, the ground. The base 10 has a first surface 101, which is a surface of the base 10 away from the support plane, that is, Figure 1 The upper surface shown in .

[0034] The first end 301 of the ladder frame 30 is connected to the first surface 101 of the base 10, and the second end 302 of the ladder frame 30 is connected to the aircraft, wherein the first end 301 of the ladder frame 30 and the base 10 can be fixedly connected, detachably connected, rotatably connected, etc. There is a preset angle between the ladder frame 30 and the first surface of the base 10, and the range of the preset angle can be set to 0 to 90°. When the first end 301 of the ladder frame 30 is rotatably connected to the base 10, the size of the preset angle can be adjusted and fixed according to actual use requirements. The second end 302 of the ladder frame 30 can be abutted or detachably connected to the aircraft. In addition, in order to improve the stability of the connection between the ladder frame 30 and the aircraft, a limiting portion and a matching portion can also be set between the two, and the connection reliability can be improved by matching methods such as snap-on and plug-in. The embodiment of the present application does not impose too many restrictions on this.

[0035] The support assembly 20 is disposed on the base 10. The support assembly 20 includes a fixing portion 21 disposed on the base 10 and a support portion 22 disposed on the fixing portion 21. The length of the support portion 22 in the first direction is adjustable. By adjusting the length of the support portion 22 in the first direction, the support portion 22 can be brought into contact with the support plane, playing an auxiliary support role for the base 10 and improving the support stability between the base 10 and the support plane.

[0036] Wherein, the first direction is the direction pointing from the fixing portion 21 to the support plane, that is, Figure 1 the vertically downward direction shown in. When the support plane is a hard plane such as a cement plane or an asphalt plane, the support portion 22 abuts against the support plane, increasing the support position and the support area; when the support plane is a soft plane such as a dirt ground, the support portion 22 is at least partially embedded in the support plane to improve the support stability, thereby improving the safety and reliability of the use of the aerial ladder.

[0037] In the embodiment of the present application, the aerial ladder is provided with a support portion whose length in the first direction is adjustable, so that by adjusting the length of the support portion, the support portion abuts against the support plane or is at least partially embedded in the support plane, thereby improving the support stability between the base and the support plane, avoiding the aerial ladder from tipping over during use, and improving the safety and reliability of the aerial ladder.

[0038] In some embodiments, the support assembly 20 can be disposed at different positions. The number of the support assemblies 20 is at least two. Taking the first surface 101 as the top surface, a plurality of support assemblies 20 are respectively disposed on two opposite sides of the base 10. In the embodiment of the present application, a total of four support assemblies 20 are provided, and two support assemblies 20 are disposed on each of the two opposite sides of the base 10, and one support assembly 20 is disposed at each end of each side. Of course, it can be understood that in order to improve the support effect, the support assemblies 20 can also be disposed on all four sides of the base 10, and the number of the support assemblies 20 disposed on each side can also be adjusted by those skilled in the art according to needs, and the embodiment of the present application does not limit this too much.

[0039] In some embodiments, the support assembly 20 further includes a driving portion 23. As Figure 4 shown, the output end of the driving portion 23 is connected to the support portion 22 to drive the support portion 22 to extend or shorten in the first direction, thereby adjusting the length of the support portion 22 in the first direction. Among them, the driving portion 23 can be, for example, a hydraulic press, a motor, a cylinder or other structures capable of providing power, and the embodiment of the present application does not make special limitations on this.

[0040] In an example, the support portion 22 and the driving portion 23 are disposed on different sides of the fixing portion 21. As Figures 2-4As shown, the fixing part 21 is connected to the first surface 101 and extends in a direction away from the base 10. The driving part 23 is arranged on the first side 211 of the fixing part 21, where the first side 211 is the side away from the supporting plane, that is, above the fixing part 21. The supporting part 22 is arranged on the second side 212 opposite to the first side 211, that is, below the fixing part 21. The output end of the driving part 23 passes through the fixing part 21 and is connected to the supporting part 22 to drive the supporting part 22 to elongate or shorten in the first direction.

[0041] In one example, a supporting base plate 221 is further arranged at one end of the supporting part 22 close to the supporting plane. As Figure 4 shown, the projected area of the supporting base plate 221 on the supporting plane is larger than the projected area of the supporting part 22 on the supporting plane to increase the normal area, thereby improving the supporting stability.

[0042] In one example, anti-slip nails 222 are further arranged on one side of the supporting base plate 221 close to the supporting plane. The anti-slip nails 222 are used to contact soft supporting planes such as muddy ground. As Figure 4 shown, the end of the anti-slip nail 222 close to the supporting plane has a tip to reduce the contact area, thereby increasing the pressure and facilitating the anti-slip nail 222 to embed into the supporting plane, and achieving the purpose of improving the supporting effect by the anti-slip nail 222 gripping the ground.

[0043] In some embodiments, the base 10 is further provided with an anti-slip part 11. As Figure 3 shown, the anti-slip part 11 is arranged on the second surface 102 of the base 10 close to the supporting plane, that is, the ground surface of the base 10. By arranging the anti-slip part 11, the friction between the second surface 102 of the base 10 and the supporting plane is increased, thereby achieving the effect of improving the supporting stability and preventing the base 10 from moving during the use of the aerial ladder. The anti-slip part 11 can have various shapes, such as serrated patterns, wavy patterns, etc. The anti-slip part 11 can also be anti-slip strips arranged in an array. The specific form of the anti-slip part 11 in this application embodiment is not particularly limited, and those skilled in the art can set it according to actual needs.

[0044] In some embodiments, the ladder frame 30 is rotatably connected to the base 10. As Figures 1-6 shown, a rotating seat 12 is arranged on the first surface 101, and a rotating part 3011 rotatably connected to the rotating seat 12 is arranged at the first end 301 of the ladder frame 30, so that the ladder frame 30 is rotatably connected to the first surface 101. Thus, by adjusting the angle of the ladder frame 30 rotating relative to the first surface 101, the preset included angle between the ladder frame 30 and the first surface 101 is adjusted, so that the aerial ladder can be connected to different heights.

[0045] In some embodiments, the ladder frame 30 can maintain the preset included angle with the first surface 101 in various ways.

[0046] In one example, the ladder frame 30 is provided with a limiting member (not shown in the figure). After adjusting the ladder frame 30 to the required angle, the limiting member is used to limit the ladder frame 30, so that the ladder frame 30 is maintained at a position having a required preset included angle with the first surface 101.

[0047] In another example, the ladder frame 30 is rotatably connected to the base 10 through a structure such as a damping rotating shaft that can be maintained at a fixed angle. For example, the rotating member 3011 and the rotating seat 12 are connected through a damping rotating shaft, so that the ladder frame 30 is maintained at this position after rotating to the required preset included angle.

[0048] In yet another example, a rotation limiting portion (not shown in the figure) is provided on the rotating member 3011, and a rotation mating portion (not shown in the figure) is provided on the rotating seat 12. The rotation limiting portion can be, for example, a plurality of limiting grooves arranged along the circumferential direction of the rotating member 3011, and the rotation mating portion can be, for example, a limiting block that cooperates with the limiting groove. The rotating member 3011 rotates relative to the rotating seat 12 to different angles, and the limiting block cooperates with different limiting grooves for limiting, so that the ladder frame 30 is maintained at this angle. Of course, it can be understood that the rotation limiting portion can also be set as a limiting block, and the rotation mating portion can be set as a plurality of limiting grooves. Those skilled in the art can set according to actual needs, and the embodiments of the present application do not make too many restrictions on this.

[0049] In some embodiments, the ladder frame 30 includes a first ladder frame 31 and a second ladder frame 32. At least a part of the second ladder frame 32 is slidably connected to the first ladder frame 31 to adjust the length of the ladder frame 30.

[0050] As Figure 5 shown, the first ladder frame 31 includes a first support beam 311 and a first tread beam 312. The two first support beams 311 are parallel to each other, and the two first support beams 311 are connected by a plurality of first tread beams 312. The plurality of first tread beams 312 are parallel to each other in pairs. The first support beam 311 and the first tread beam 312 together form the main structure of the first ladder frame 31. The second ladder frame 32 includes two second support beams 321 and a plurality of second tread beams 322 that connect the two second support beams 321. The main structure of the second ladder frame 32 is similar to that of the first ladder frame 31 and will not be described in detail here.

[0051] In some embodiments, the first ladder frame 31 is provided with a first mating portion 3111, and the second ladder frame 32 is provided with a second mating portion 3211 that mates with the first mating portion 3111. As Figure 6As shown, the first mating portion 3111 is provided on the first support beam 311. At least a part of the second ladder 32 is stacked with the first ladder 31. The second mating portion 3211 is provided on the second support beam 321 and is located on the side close to the first support beam 311. The first mating portion 3111 and the second mating portion 3211 can perform relative movement to achieve relative sliding of the second ladder 32 and the first ladder 31.

[0052] In one example, the ladder 30 is further provided with an adjusting portion. As Figure 6 shown, the adjusting portion is used to make the first mating portion 3111 and the second mating portion 3211 perform relative movement. Exemplarily, the adjusting portion includes a crank 331, a worm 332, and a worm gear 333. The crank 331 is connected to the worm 332, the worm 332 is connected to the worm gear 333, and the worm gear 333 is connected to the first mating portion 3111. When the crank 331 is rotated, the driving force is transmitted through the worm 332 and the worm gear 333, and then the first mating portion 3111 and the second mating portion 3211 are driven to perform relative movement, so as to achieve relative sliding of the second ladder 32 and the first ladder 31.

[0053] In one example, the first mating portion 3111 includes a screw 3112 and a lifting portion 3113. As Figure 6 shown, the first mating portion 3111 is provided in the first support beam 311. The lifting portion 3113 is connected to one end of the screw 3112, and the lifting portion 3113 is also connected to the second mating portion 3112. When the adjusting portion drives the screw 3112 to rotate through the worm 332 and the worm gear 333, the lifting portion 3113 at one end of the screw 3112 slides along the extending direction of the first support beam 311. Since the lifting portion 3113 is connected to the second mating portion 3112, when the lifting portion 3113 slides, it can drive the second ladder 32 to slide relative to the first ladder 31, so as to adjust the overall length of the ladder 30, so that the aviation ladder is suitable for use scenarios of different heights.

[0054] According to an exemplary embodiment, as Figures 1-6 shown, an embodiment of the present application provides an aircraft (not shown in the figure). The aircraft may be an aerospace vehicle such as an airplane, an airship, a drone, a manned spacecraft, etc. The aircraft includes the aviation ladder as described in the above embodiment, and the aviation ladder is detachably connected to the aircraft.

[0055] The airstair includes a base 10, a support assembly 20 disposed on the base 10, and a ladder frame 30 having one end connected to the base 10. The base 10 is supported on a support plane. The base 10 has a first surface 101, which is the surface of the base 10 away from the support plane. The first end 301 of the ladder frame 30 is connected to the first surface 101 of the base 10, and the second end 302 of the ladder frame 30 is connected to the aircraft. The support assembly 20 is disposed on the base 10. The support assembly 20 includes a fixing portion 21 disposed on the base 10 and a support portion 22 disposed on the fixing portion 21. The length of the support portion 22 in a first direction is adjustable, where the first direction is the direction from the fixing portion 21 towards the support plane. By adjusting the length of the support portion 22 in the first direction, the support portion 22 can be brought into contact with the support plane, providing an auxiliary support to the base 10, improving the support stability between the base 10 and the support plane, and further enhancing the safety and reliability of the airstair during use.

[0056] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, elements defined by the statement "comprising..." do not preclude the existence of additional identical elements in the process, method, article or device comprising the said elements.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them. The present application has been described in detail only with reference to the preferred embodiments. Those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application, and all such modifications and replacements should be covered within the scope of the claims of the present application.

Claims

1. An aviation ladder, characterized in that: include: A base, supported on a supporting plane; a ladder frame, wherein a first end of the ladder frame is connected to a first surface of the base, a second end of the ladder frame is connected to the aircraft, and the first surface is a surface away from the supporting plane; A support assembly is disposed on the base, the support assembly comprises a fixing portion disposed on the base, and a support portion disposed on the fixing portion, wherein the length of the support portion along a first direction is adjustable to improve the support stability between the base and the support plane; The first direction is a direction from the fixing portion to the supporting plane.

2. The aviation ladder according to claim 1, characterized in that: The support assembly further includes a driving part, an output end of which is connected to the support part to drive the support part to extend or shorten along the first direction to adjust the length of the support part along the first direction.

3. The aviation ladder according to claim 2, characterized in that: The fixing portion is connected to the first surface and extends in a direction away from the base, the driving portion is arranged on a first side of the fixing portion, the supporting portion is arranged on a second side opposite to the first side, and the output end of the driving portion passes through the fixing portion and is connected to the supporting portion, wherein the first side is a side away from the supporting plane.

4. The aviation ladder according to claim 1, characterized in that: A support bottom plate is further provided at one end of the support portion close to the support plane, and a projection area of ​​the support bottom plate on the support plane is larger than a projection area of ​​the support portion on the support plane.

5. The aviation ladder according to claim 1, characterized in that: The base is further provided with an anti-slip portion, and the anti-slip portion is provided on a second surface of the base close to the supporting plane.

6. The aviation ladder according to claim 1, characterized in that: The first surface is provided with a rotating seat, and the first end of the ladder frame is provided with a rotating member rotatably connected to the rotating seat, so that the ladder frame is rotatably connected to the first surface.

7. The aviation ladder according to claim 1, characterized in that: The ladder frame includes a first ladder frame and a second ladder frame, and at least a portion of the second ladder frame is slidably connected to the first ladder frame to adjust the length of the ladder frame.

8. The aviation ladder according to claim 7, characterized in that: The first ladder rack is provided with a first matching portion, and the second ladder rack is provided with a second matching portion. The first matching portion and the second matching portion match each other. The ladder rack is also provided with an adjustment portion, and the adjustment portion is used to make the first matching portion and the second matching portion move relative to each other to achieve relative sliding of the second ladder rack and the first ladder rack.

9. The aviation ladder according to claim 8, characterized in that: The first matching portion includes a screw rod and a lifting portion connected to one end of the screw rod, the lifting portion is connected to the second matching portion, and the adjusting portion drives the screw rod to rotate, thereby driving the second ladder frame to slide relative to the first ladder frame through the sliding of the lifting portion.

10. An aircraft, characterized in that: It comprises the aviation ladder as described in any one of claims 1 to 9, wherein the aviation ladder is detachably connected to the aircraft.

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