Device for driving boarding bridge folding shed based on multi-connecting-rod mechanism and folding shed assembly

Abstract

The invention discloses a device for driving a boarding bridge folding shed based on a multi-connecting-rod mechanism and a folding shed assembly. The device for driving the boarding bridge folding shed based on the multi-connecting-rod mechanism comprises a datum plate, a first double-crank mechanism and a driving rod, and the datum plate is fixed in the folding shed; the first double-crank mechanism comprises a first connecting rod, a fourth connecting rod, a third connecting rod and a second connecting rod, in the structure, the pushing part realizes the movement process of a straight line (close to a straight line) and then a curve. The movement process of butt joint of the folding shed and the cabin door of the passenger plane is met, namely, the folding shed needs to be unfolded along a straight line and then bent to be matched with the action process of a curved fuselage of the plane, so that the folding shed and the cabin door can be well matched after being in butt joint, and the joint is better shielded. In addition, the movement process can be achieved only by providing power for the driving rod, complex control logic and driving structures are avoided, and the advantage of being lower in cost is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of boarding bridges, and in particular to a device for driving a folding shed of a boarding bridge based on a multi-link mechanism and a folding shed assembly. Background Art

[0003] In the prior art, passengers need to board or disembark the plane through a boarding bridge connected to the cabin door of the airliner. In order to achieve a better sealing effect after the boarding bridge is connected to the cabin door, a folding shed is usually provided at the end of the boarding bridge. When the boarding bridge is not in use, the folding shed shrinks, and when it is connected to the cabin door, it unfolds to fully fit around the cabin door.

[0004] However, since the fuselage of the airliner has a curved shape and the area of the folding shed connected to the cabin door is rectangular, the structures of the folding shed and the cabin door do not match when the folding shed is connected to the cabin door, resulting in poor cooperation and incomplete shielding after the folding shed is connected to the cabin door. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a device for driving a folding shed of a boarding bridge based on a multi-link mechanism and a folding shed assembly, which can drive the folding shed to have good cooperation and complete shielding after being connected to the cabin door.

[0007] The purpose of the present invention is achieved by the following technical solutions: In a first aspect, the present application discloses a device for driving a folding shed of a boarding bridge based on a multi-link mechanism, including: a reference plate, a first double-crank mechanism, and a driving rod. The reference plate is fixed inside the folding shed; the first double-crank mechanism includes a first link and a fourth link arranged oppositely, and a third link and a second link arranged oppositely; the first link extends out a first extension section, and the end of the first extension section is hinged to the reference plate; the fourth link extends out a second extension section, and the end of the second extension section is connected to a pushing part for pushing the folding shed; one end of the driving rod is hinged to the reference plate, and the other end is hinged to the hinge joint of the fourth link and the third link. The driving rod is arranged crosswise with the first link, and after the driving rod swings under drive, it drives the movement of the hinge joint of the fourth link and the third link.

[0008] Its beneficial effects are as follows: In the embodiment of the present application, the double crank mechanism formed by the multi-link mechanism enables the pushing part to realize a motion process of first moving linearly (close to linear) and then curving. This conforms to the motion process of the folding shed docking with the airliner cabin door, that is, the folding shed needs to be unfolded linearly first and then bent to cooperate with the curved fuselage of the aircraft, so that after the folding shed is docked with the cabin door, it can cooperate well and better block the connection; and the motion trajectory of the multi-link mechanism in the embodiment of the present application does not require additional power control, and only needs to provide power to the driving rod to realize the above motion process, avoiding complex control logic and driving structure, and having the advantage of lower cost.

[0009] Preferably, the total length H1 of the connection between the first link and the first extension section is equal to the length H2 of the driving rod.

[0010] Preferably, the lengths of the third link and the fourth link are both H3, and the lengths of the second link and the first link are both H4, where H3 < H4.

[0011] Specifically, the pushing part includes a fixing plate and a hinge piece. One side of the fixing plate is provided with a hinge piece perpendicular to the fixing plate. The hinge piece is hinged to the end of the second extension section along its thickness direction, and the other side of the fixing plate is fixed to the folding shed.

[0012] Preferably, a first auxiliary crank is also connected between the hinge joint of the third link and the fourth link and the hinge joint of the second link and the first link. The first auxiliary crank is connected to the first link and the third link to form a second double crank mechanism.

[0013] Preferably, a third extension section extends from the end of the second link far from the first link. A second auxiliary crank is also connected between the end of the third extension section and the end of the first extension section. The second auxiliary crank is connected to the first extension section and the second extension section to form a third double crank mechanism, and the first extension section is connected to the pushing part through the second auxiliary crank.

[0014] Specifically, a motor is arranged between the reference plate and the driving rod. One end of the motor is rotatably fixed to the reference plate, and the other end is rotatably connected to the driving rod. The motor drives the aforementioned driving rod to move through its own contraction.

[0015] In a second aspect, the present application discloses a folding shed assembly provided with the device for driving the boarding bridge folding shed based on a multi-link mechanism as described above.

[0016] Preferably, the folding shed assembly further includes a protective cover. The protective cover is connected to the reference plate and is provided as a hollow cover body, and the device for driving the boarding bridge folding shed based on a multi-link mechanism is arranged in the hollow cover body. Description of the Drawings

[0018] Figure 1Schematic diagram of the structure of a folding shed assembly according to an embodiment of the present application; Figure 2 Schematic diagram of the structure of a device for driving a boarding bridge folding shed based on a multi-link mechanism according to an embodiment of the present application; Figure 3 For Figure 2 Partial enlarged view of area A in Figure 4 Schematic diagram of the structure of another device for driving a boarding bridge folding shed based on a multi-link mechanism in the folded state according to an embodiment of the present application; Figure 5 Schematic diagram of the structure of a device for driving a boarding bridge folding shed based on a multi-link mechanism in the deployed state according to an embodiment of the present application; Figure 6 Schematic diagram of the structure of another device for driving a boarding bridge folding shed based on a multi-link mechanism in the fully deployed state according to an embodiment of the present application.

[0019] In the figure: 100 - Folding shed assembly; 110 - Device for driving a boarding bridge folding shed based on a multi-link mechanism; 111 - Reference plate; 112 - First double crank mechanism; 1121 - First connecting rod, 11211 - First extension section, 1122 - Second connecting rod, 11221 - Third extension section, 1123 - Third connecting rod, 1124 - Fourth connecting rod, 11241 - Second extension section; 1122 - Pushing part, 11221 - Fixed plate, 11222 - Hinge piece 113 - Driving rod; 114 - Second double crank mechanism; 1141 - First auxiliary crank, 11411 - Fifth connecting rod, 11412 - Sixth connecting rod; 115 - Third double crank mechanism; 1151 - Second auxiliary crank, 11511 - Seventh connecting rod, 11512 - Eighth connecting rod; 116 - Motor; 120 - Folding shed; 121 - Protective cover. Detailed implementation manners

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0022] Referring to Figures 1-5 , the present invention provides a device 110 for driving the folding shed of a boarding bridge based on a multi-link mechanism and a folding shed assembly 100.

[0023] A device 110 for driving the folding shed of a boarding bridge based on a multi-link mechanism according to an embodiment of the present application includes: a reference plate 111, a first double-crank mechanism 112, and a driving rod 113.

[0024] A folding shed 120 is provided in the area of the boarding bridge for docking the aircraft cabin door. Refer to Figure 1 As shown, the folding shed 120 is set as a retractable soft shed, and the reference plate 111 is fixed inside the folding shed 120 and is used to be arranged on the side where the boarding bridge is fixed to the folding shed 120.

[0025] As Figure 2 shown, the first double-crank mechanism 112 includes: a first link 1121 and a fourth link 1124 arranged oppositely, a third link 1123 and a second link 1122 arranged oppositely. The ends of the rods of the double-crank mechanism are hinged to each other. In this example, the first link 1121 is hinged to the second link 1122 and the third link 1123. The second link 1122 is located above the third link 1123. The second link 1122 and the third link 1123 are hinged to the fourth link 1124, so that a quadrilateral structure of the first double-crank mechanism 112 is formed by the first link 1121, the second link 1122, the third link 1123, and the fourth link 1124 hinged to each other. Among them, the first double-crank mechanism 112 can be an unequal-length double-crank mechanism or a parallel double-crank mechanism. In this way, the first double-crank mechanism 112 can be expanded and contracted.

[0026] One end of the first link 1121 is hinged to the second link 1122, and the other end extends away from the second link 1122 to form a first extension section 11211. That is, the hinge point between the third link 1123 and the first link 1121 is the starting part of the extension section. The end of the first extension section 11211 is hinged to the reference plate 111, enabling the first link 1121 to rotate around its hinge point with the reference plate 111. One end of the fourth link 1124 is hinged to the third link 1123, and the other end extends away from the third link 1123 to form a second extension section 11241. The end of the second extension section 11241 is connected to the pushing part 11242, which is used to push the folding shed 120. The pushing part 11242 can be, as Figure 1 shown, connected to the second extension section 11241 and rotatably connected to the folding shed 120, so that the movement of the second extension section 11241 drives the pushing part 11242 and the folding shed 120 to move.

[0027] Exemplarily, referring to Figure 3 shown, the pushing part 11242 includes a fixing plate 11 and a hinge piece 12. One side of the fixing plate 11 is provided with a hinge piece 12 perpendicular to the fixing plate 11. The hinge piece 12 is hinged to the end of the second extension section 11241 along its thickness direction. The other side of the fixing plate 11 is fixed to the folding shed 120, so that the second extension section 11241 and the folding shed 120 are rotatably connected, thereby driving the folding shed 120 to be linearly unfolded or bent.

[0028] Continuing to refer to Figure 2 , one end of the driving rod 113 is hinged to the reference plate 111. The hinge position of the driving rod 113 is above the hinge position of the first link 1121 and the reference plate 111, and the driving rod 113 and the first link 1121 are cross - arranged. The other end of the driving rod 113 is hinged to the hinge point between the fourth link 1124 and the third link 1123. In this way, after the driving rod 113 is driven to swing, it can drive the hinge point between the fourth link 1124 and the third link 1123 to move.

[0029] Specifically, when the driving rod 113 is driven to swing, its swinging end drives the hinge point between the third link 1123 and the fourth link 1124 to swing in an arc trajectory. The power of the driving rod 113 is transmitted to the entire first double - crank mechanism 112 through the hinge point between the third link 1123 and the fourth link 1124. Since the first extension section 11211 extended from the first link 1121 is hinged to the reference plate 111, after the power of the driving rod 113 is transmitted to the first link 1121, the first link 1121 will swing around its hinge position with the reference plate 111.

[0030] In this way, taking Figure 2In the shown situation, when the driving rod 113 swings upward, it drives the hinged joint between the third link 1123 and the fourth link 1124 to swing upward. At the same time, the power is transmitted to the first link 1121 to make it swing downward. The swinging of the first link 1121 and the second driving rod 113 causes the first double-crank mechanism 112 to produce a folding action in the height direction.

[0031] Moreover, when the first link 1121 moves, the hinged joint between the first link 1121 and the third link 1123 will also produce an arc movement around the hinged joint between the first link 1121 and the reference plate 111. Since the relative hinged joints of the double-crank mechanism will always remain on a diagonal line during contraction and folding; therefore, when the hinged joint between the first link 1121 and the third link 1123 moves downward due to its arc movement, the hinged joint between the fourth link 1124 and the second link 1122 opposite to it will also move downward.

[0032] Thus, the first double-crank mechanism 112 includes two motion stages during the unfolding process: In the first stage, the first double-crank mechanism 112 starts to unfold in a state of contraction along the direction perpendicular to the reference plate 111. During this process, both the first link 1121 and the driving rod 113 swing away from the reference plate 111 starting from the position where they are attached to the reference plate 111. When the angles of the first link 1121 and the driving rod 113 relative to the reference plate 111 are small, the moving amplitude of the first link 1121 and the driving rod 113 in the direction perpendicular to the reference plate 111 (i.e., the unfolding direction) is large, while the moving amplitude in the length direction of the reference plate 111 (i.e., the height direction) is small. Therefore, the first double-crank mechanism 112 gradually unfolds in a straight line direction. Correspondingly, the end of the second extension segment 11241 mainly moves in the direction of the reference plate 111 (i.e., the unfolding direction), and then the pushing part 11242 drives the folding shed 120 to mainly move in a straight line direction (approximate to a straight line).

[0033] In the second stage, as the swinging amplitudes of the first link 1121 and the driving rod 113 relative to the reference plate 111 increase, for example, when the angle between the first link 1121 and the reference plate 111 exceeds 45°, their moving amplitudes in the direction perpendicular to the reference plate 111 (i.e., the unfolding direction) decrease, while their moving amplitudes in the length direction of the reference plate 111 (i.e., the height direction) increase. At this time, the hinge joint between the fourth link 1124 driven by the driving rod 113 and the third link 1123 starts to move significantly upward; the hinge joint between the first link 1121 and the third link 1123 starts to move violently downward. Correspondingly, the hinge joint between the fourth link 1124 and the second link 1122, which is diagonal to it, also starts to move significantly downward. Then, the lower end of the fourth link 1124 moves upward and the middle section moves downward, causing the end of the second extension section 11241 to perform an arc motion, and then the pushing portion 11242 drives the folding shed 120 to mainly perform a bending action.

[0034] That is to say, in the embodiment of the present application, through the double-crank mechanism formed by the multi-link mechanism, the pushing portion 11242 realizes a motion process of first straight line (close to a straight line) and then curve. This conforms to the motion process of the docking of the folding shed 120 with the airliner cabin door, that is, the folding shed 120 needs to first unfold along a straight line and then bend to cooperate with the curved fuselage of the aircraft, so that after the folding shed 120 is docked with the cabin door, it can cooperate well and better block the connection; and the motion trajectory of the multi-link mechanism in the embodiment of the present application does not require additional power control, and only needs to provide power for the driving rod 113 to realize the above motion process, avoiding complex control logic and driving structure, and having the advantage of lower cost.

[0035] Next, for better illustration, some examples where Figures 2-6 the first double-crank mechanism 112 shown has unequal-length cranks will be explained in detail.

[0036] The total length H1 of the connection between the first link 1121 and the extension rod is equal to the length H2 of the driving rod 113 to ensure that when the first double-crank mechanism 112 performs the motion in the first stage, the motion trajectory is basically along the direction perpendicular to the reference plate 111.

[0037] As Figure 2As shown, the lengths of the third link 1123 and the fourth link 1124 are both H3, and the lengths of the second link 1122 and the first link 1121 are both H4, where H3 < H4. Thus, during the movement in the second stage, as the angle between the first link 1121 and the reference plate 111 increases, due to their longer lengths (both H4), the first link 1121 and the second link 1122 will have a relatively larger movement amplitude in the length direction of the reference plate 111 (i.e., the height direction). In contrast, since the third link 1123 and the fourth link 1124 are shorter in length (both H3), when receiving the same power transmission, their movement amplitudes relative to the hinge points, especially the upward movement amplitude, will be more restricted and limited by the longer links (the first link 1121 and the second link 1122). This constraint causes the hinge point of the third link 1123 and the fourth link 1124 to have a smaller upward movement amplitude compared to the downward movement amplitude of the second link 1122 and the first link 1121. This makes the end of the second extension segment 11241 have a larger circular arc movement amplitude during the second stage, which better conforms to the outer shape structure of the fuselage.

[0038] Next, continue the description with reference to Figures 4-6 the structures in some other examples shown.

[0039] A first auxiliary crank is also connected between the hinge point of the third link 1123 and the fourth link 1124 and the hinge point of the second link 1122 and the first link 1121. The first auxiliary crank, the first link 1121, and the third link 1123 are connected to form a second double-crank mechanism 114. Thus, through the second double-crank mechanism 114 formed by the first auxiliary crank, the power transmitted to the hinge point of the third link 1123 and the fourth link 1124 by the drive rod 113 can be dispersed to the hinge point of the first link 1121 and the second link 1122, making the movement of the first double-crank mechanism 112 more stable and the stress distribution more uniform.

[0040] Specifically, the first auxiliary crank includes a fifth link 1141 and a sixth link 1142. One end of the fifth link 1141 is hinged to the hinge point of the third link 1123 and the fourth link 1124, one end of the sixth link 1142 is hinged to the hinge point of the first link 1121 and the second link 1122, and the other end of the fifth link 1141 is hinged to the other end of the sixth link 1142.

[0041] In this way, when the driving rod 113 swings and drives the hinge joint of the fourth link 1124 and the third link 1123 to move, the power is also transmitted to the sixth link 1142 through the fifth link 1141. The sixth link 1142 then transmits this part of the power to the hinge joint of the first link 1121 and the second link 1122. Specifically, when the driving rod 113 drives the hinge joint of the fourth link 1124 and the third link 1123 to move upward, the power is transmitted to the sixth link 1142 through the fifth link 1141, and then transmitted to the hinge joint of the first link 1121 and the second link 1122 through the second crank mechanism to form a new transmission path.

[0042] One end of the second link 1122 away from the first link 1121 further extends a third extension section 11231. A second auxiliary crank is also connected between the end of the third extension section 11231 and the end of the first extension section 11211. The second auxiliary crank is connected to the first extension section 11211 and the second extension section 11241 to form a third double crank mechanism 115. The first extension section 11211 is connected to the pushing part 11242 through the second auxiliary crank.

[0043] Specifically, the second auxiliary crank specifically includes a seventh link 1151 and an eighth link 1152. One end of the seventh link 1151 is hinged to the second extension section 11241, and the other end is hinged to the eighth link 1152; one end of the eighth link 1152 is hinged to the third extension section 11231, and the other end is hinged to the eighth link 1152. The end of the eighth link 1152 away from the third extension section 11231 extends a fourth extension section 11521, and a pushing part 11242 is provided at the end of the fourth extension section 11521.

[0044] In this way, by adding the third double crank mechanism 115, the linear movement distance of the device for driving the boarding bridge folding shed by the multi-link mechanism along a straight line can be increased.

[0045] Of course, those skilled in the art can think of a fourth double crank mechanism, a fifth double crank mechanism, etc. that have the same function as the third double crank mechanism according to the third double crank mechanism disclosed in the embodiments of the present application without creative labor to further increase the linear movement amplitude of the pushing part 11242. Then the above solutions should also fall within the protection scope of the present application.

[0046] In this example, the movement process of the device for driving the boarding bridge folding shed by the multi-link mechanism can be combined with Figures 4-6 for understanding.

[0047] As Figure 4 shown, the first double crank mechanism 112, the second crank mechanism, and the third crank mechanism are all folded and substantially attached to the reference plate 111. As the driving rod 113 is driven to swing, the device starts the first-stage movement. During the process, the device changes fromFigure 4 The state gradually switches to Figure 5 the state shown in the figure, and the pushing part 11242 moves substantially in a straight line.

[0048] Figure 5 In this state, the angle between the first connecting rod 1121 and the reference plate 111, and the angle between the driving rod 113 and the reference plate 111 reach a certain angle, such as 45°; the device is switched from Figure 5 the state shown in the figure to Figure 6 the state shown in the figure, that is, the device performs the second-stage movement, and during the process, the pushing part 11242 moves substantially along an arc.

[0049] In order to ensure that the pushing part 11242 does not continue to swing after moving to Figure 6 the state shown in the figure to ensure safety, in some preferred embodiments, a limiter is further provided. The limiter can be arranged in the folding shed and used to limit the movement range of the pushing part 11242.

[0050] In any of the above embodiments, a motor 116 can be arranged between the reference plate 111 and the driving rod 113. One end of the motor 116 is rotatably fixed to the reference plate 111, and the other end is rotatably connected to the driving rod 113. The motor 116 drives the aforementioned driving rod 113 to move through its own contraction.

[0051] For example, the motor 116 can be a linear motor with a conventional voltage and a power of 500W - 800W.

[0052] According to the folding shed assembly 100 of the embodiment of the present application, referring to Figure 1 the figure shown, the device 110 for driving the boarding bridge folding shed based on the multi-link mechanism described in the above embodiment is provided.

[0053] In some embodiments, the folding shed assembly 100 further includes a protective cover 121. The protective cover 121 is connected to the reference plate 111 and is arranged as a hollow cover body, and the device 110 for driving the boarding bridge folding shed based on the multi-link mechanism in the above embodiment is arranged in the hollow cover body to increase the safety of the folding shed assembly 100.

[0054] The above are only the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above teachings or the technology or knowledge in related fields. And the changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention should all be within the protection scope of the appended claims of the present invention.

Claims

1. A device for driving a folding canopy of a boarding bridge based on a multi-link mechanism, characterized in that: include: A reference plate, wherein the reference plate is fixed in the folding shed; A first double crank mechanism, the first double crank mechanism comprises a first connecting rod and a fourth connecting rod arranged opposite to each other, and a third connecting rod and a second connecting rod arranged opposite to each other; the first connecting rod extends a first extension section, and the end of the first extension section is hinged to the reference plate; the fourth connecting rod extends a second extension section, and the end of the second extension section is connected to a pushing part, and the pushing part is used to push the folding shed; A driving rod, one end of which is hinged to the reference plate, and the other end of which is hinged to the hinge between the fourth connecting rod and the third connecting rod. The driving rod and the first connecting rod are arranged crosswise, and the driving rod is driven to swing to drive the hinge between the fourth connecting rod and the third connecting rod to move.

2. The device for driving the folding canopy of a boarding bridge based on a multi-link mechanism according to claim 1 is characterized in that: The total length H1 of the first connecting rod connected to the first extension section is equal to the length H2 of the driving rod.

3. The device for driving the folding canopy of a boarding bridge based on a multi-link mechanism according to claim 1 is characterized in that: The length of the third connecting rod and the length of the fourth connecting rod are both H3, the length of the second connecting rod and the length of the first connecting rod are both H4, and H3<H4.

4. The device for driving the folding canopy of a boarding bridge based on a multi-link mechanism according to claim 1, characterized in that: The pushing part includes a fixed plate and a hinged piece. The hinged piece perpendicular to the fixed plate is arranged on one side of the fixed plate. The hinged piece is hinged to the end of the second extension section along its thickness direction, and the other side of the fixed plate is fixed to the folding shed.

5. According to the device for driving the folding canopy of a boarding bridge based on a multi-link mechanism according to claim 1, a first auxiliary crank is also connected between the hinges of the third link and the fourth link and between the hinges of the second link and the first link, and the first auxiliary crank is connected with the first link and the third link to form a second double crank mechanism.

6. The device for driving the folding canopy of a boarding bridge based on a multi-link mechanism according to claim 1 or 5, characterized in that: A third extension section is extended from one end of the second connecting rod away from the first connecting rod, and a second auxiliary crank is connected between the end of the third extension section and the end of the first extension section. The second auxiliary crank is connected to the first extension section and the second extension section to form a third double crank mechanism, and the first extension section is connected to the pushing part through the second auxiliary crank.

7. The device for driving the folding canopy of a boarding bridge based on a multi-link mechanism according to claim 1, characterized in that: A motor is provided between the reference plate and the driving rod, one end of the motor is rotatably fixed to the reference plate, and the other end of the motor is rotatably connected to the driving rod. The motor drives the driving rod to move by contracting itself.

8. A folding shed assembly, characterized in that: A device for driving the folding canopy of an aircraft bridge based on a multi-link mechanism as described in any one of claims 1 to 7 is provided.

9. The folding shed assembly according to claim 8, characterized in that: It also includes a protective cover, which is connected to the reference plate and is arranged as a hollow cover body, and the device for driving the folding canopy of the boarding bridge based on the multi-link mechanism is arranged in the hollow cover body.

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