Self-adaptive passing device capable of being erected at multiple angles

Abstract

The invention discloses a self-adaptive passing device capable of being erected at multiple angles. One end of the self-adaptive passing device is a fixed end and is hinged to a fixed platform; and the other end is an erecting end and swings in a vertical plane by taking the fixed end as a center. The device comprises a plurality of pedals and two supporting assemblies. The pedals are arranged between the two oppositely-arranged supporting assemblies and arranged in the length direction of the supporting assemblies at intervals. The supporting assembly comprises a first supporting piece and a second supporting piece. On the two sides of the pedal, the first supporting piece and one end of the pedal are hinged to a point A1, and the second supporting piece and the other end of the pedal are hinged to a point A2; a point A1 and a point A2 on the same side of any two adjacent pedals are constructed to be four vertexes of a parallelogram. In the span direction of the pedal, the second supporting piece is arranged on the side, facing the pedal, of the first supporting piece. The second supporting pieces are constructed to be of a tooth-shaped structure, and the second supporting pieces between any two adjacent points A2 are constructed to be broken line sections or arc line sections so as to bypass the points A1 above or below the points A1.

Description

Technical Field

[0001] The invention relates to the field of movable ladder equipment, in particular to an adaptive passage device which can be erected at multiple angles. Background Art

[0002] The movable ladder is a common passage equipment in people's daily work and life. It is widely used due to its advantages of light structure, flexible installation and high safety. Especially at shipping terminals or offshore construction platforms, the existing water-level adaptive movable ladder can adaptively adjust the installation angle according to the tidal fluctuations, which greatly facilitates people's passage. For example, Chinese patent CN209683950U discloses a ship-shore connection device for passenger terminals suitable for large water level differences. It uses multiple sets of parallel support rods to support multi-step steps that can always remain horizontal, and the components are mostly hinged, which can not only adaptively adjust the installation angle according to water level changes, but also make the device have high anti-slip properties under large water level differences.

[0003] However, the existing support rods of such devices cannot be staggered up and down, so they can only be erected in a one-way downward direction. If the water level is high, the height of the free end support is greater than that of the fixed end. The device is very likely to suffer plastic damage such as bending and breaking between components due to buoyancy, and cannot meet the needs of traffic. Therefore, it is urgent to invent an adaptive traffic device that can be erected at multiple angles. Under the premise of keeping the steps level at all times, the free end support can be adaptively adjusted to the height change of the free end support at a two-way erection angle of lowering and lifting. Summary of the invention

[0004] The main technical problem to be solved by the present invention is to provide an adaptive passage device that can be erected at multiple angles. Under the premise of always keeping the steps level, the height change of the free-end erection support can be adaptively adjusted by lowering and lifting the two-way erection angles.

[0005] In order to solve the above technical problems, the present invention provides an adaptive passage device that can be set up at multiple angles, one end of the device is a fixed end, hinged to a fixed platform; the other end is a setting end, swinging in a vertical plane with the fixed end as the center;

[0006] The device comprises a plurality of pedals and two groups of support assemblies; the pedals are arranged between the two groups of support assemblies arranged opposite to each other and are arranged at intervals along the length direction of the support assemblies;

[0007] The support assembly includes a first support member and a second support member; on both sides of the pedal, the first support member is hinged to one end of the pedal at point A1, and the second support rod is hinged to the other end of the pedal at point A2; the points A1 and A2 on the same side of any two adjacent pedals are constructed as four vertices of a parallelogram;

[0008] In the span direction of the pedal, the second support member is arranged on the side of the first support member facing the pedal; the second support member is constructed as a tooth-like structure, and the second support member between any two adjacent points A2 is constructed as a broken line segment or an arc segment to bypass the point A1 above or below the point A1.

[0009] In a preferred embodiment, the first support member and the second support member are hinged to the fixed platform at point B1 and point B2, respectively, and the point B1 is arranged on the side of the point B2 facing the device; the horizontal inclination angle of the line connecting the point B1 and the point B2 is not greater than 15°;

[0010] The point B1, point B2 and a group of points A1 and A2 on adjacent pedals are constructed as four vertices of a parallelogram.

[0011] In a preferred embodiment, the second support member between the point B2 and the adjacent point A2 is constructed as a broken line segment or an arc segment to bypass the point A1 above or below the point A1.

[0012] In a preferred embodiment, the fixed platform is provided with a first connecting rod at the B1 point along the span direction, and the first supporting member is rotatably connected to the first connecting rod;

[0013] The fixed platform is provided with a second connecting rod at the B2 point along the span direction, and the second supporting member is rotatably connected to the second connecting rod.

[0014] In a preferred embodiment, the pedal is provided with a first rotating shaft at point A1 along the span direction, and a second rotating shaft is provided at point A2 along the span direction.

[0015] In a preferred embodiment, the first support member is provided with a plurality of first connection holes spaced apart along the length direction so as to be rotatably connected to the first rotating shaft;

[0016] The second supporting member is provided with a plurality of second connecting holes at intervals at the turning point of the folded line segment or the arc segment so as to be rotatably connected with the second rotating shaft.

[0017] In a preferred embodiment, the first connection holes and the second connection holes are arranged at equal intervals, and the arrangement interval of the first connection holes is equal to the arrangement interval of the second connection holes.

[0018] In a preferred embodiment, when the second support member is configured as a zigzag tooth structure, the folding angle of the zigzag segment is negatively correlated with the angle at which the device is erected;

[0019] When the second support member is configured as an arc-shaped toothed structure, the curvature of the arc segment is positively correlated with the angle at which the device is erected.

[0020] In a preferred embodiment, the device further comprises a set of floor wheels; the floor wheels are arranged at the erection end.

[0021] In a preferred embodiment, the device is made of aluminum alloy or stainless steel.

[0022] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0023] The adaptive passage device that can be erected at multiple angles provided by the present invention constructs the second support member into a toothed structure with a plurality of broken line segments or arc segments to leave sufficient moving space above or below the first rotating shaft, thus getting rid of the dilemma of only being able to be erected downward or upward in the prior art, and meeting different passage needs with a larger erection angle.

[0024] The adaptive passage device capable of being erected at multiple angles provided by the present invention mostly adopts hinges between components, and the relative position relationship between the components is arranged reasonably, and the erection angle can be adaptively adjusted according to the height change of the free end without human intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional schematic diagram of the device described in an embodiment of the present invention;

[0026] Figure 2 is a top view of the device described in an embodiment of the present invention;

[0027] Figure 3 It is a side view of the device in the embodiment of the present invention when the erection end is lowered;

[0028] Figure 4 It is a side view of the device in the embodiment of the present invention when the erected end is laid flat;

[0029] Figure 5 It is a side view of the device according to the embodiment of the present invention when the erection end is lifted up.

[0030] (Some figures are partially drawn with dotted lines in order to more intuitively reflect the technical solution of this embodiment, and do not completely represent the outline of a real three-dimensional object.)

[0031] Marked in the figure: 1-adaptive passage device that can be set up at multiple angles, 11-pedal, 12-support assembly, 121-first support member, 1211-first connecting hole, 122-second support member, 1221-second connecting hole, 131-first rotating shaft, 132-second rotating shaft, 2-fixed platform, 21-first connecting rod, 22-second connecting rod, 23-reference plane. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0035] like Figures 1 to 5 As shown, the embodiment of the present invention provides an adaptive passage device 1 that can be set up at multiple angles, one end of which is a fixed end, hinged to a fixed platform 2; the other end is a setting end, which swings in a vertical plane with the fixed end as the center. To simplify the description, the "device 1" mentioned below refers to the adaptive passage device 1 that can be set up at multiple angles. The device 1 includes a plurality of pedals 11 and two sets of support components 12. Figures 1-2As shown, the device is shaped like a conventional movable ladder, and the two groups of support assemblies 12 are arranged opposite to each other and are both hinged to the fixed platform 2. The pedal 11 is horizontally arranged between the two groups of support assemblies 12 and is arranged at intervals along the length direction of the support assemblies 12. It can be understood that the pedal 11 should not be limited to an absolute horizontal state. As long as it does not affect normal walking, the pedal 11 can be set to a horizontal inclination angle of no more than 15°. In order to ensure traffic safety, the pedal 11 and the support assembly 12 in this embodiment are made of aluminum alloy or stainless steel, so that the device 1 has the advantages of light weight and high strength.

[0036] like Figures 1-2 As shown, a group of the support assembly 12 includes a first support member 121 and a second support member 122. The first support member 121 adopts a straight rod structure, while the second support member 122 is constructed as a toothed structure with a plurality of broken line segments or arc segments. On both sides of the pedal 11, the first support member 121 is hinged to one end of the pedal 11 at point A1, and the second support member 122 is hinged to the other end of the pedal 11 at point A2. Specifically, the pedal 11 is provided with a first rotating shaft 131 at point A1 along the span direction, and the first support member 121 is provided with a plurality of first connecting holes 1211 at intervals along the length direction to be rotatably connected with the first rotating shaft 131. Similarly, the pedal 11 is provided with a second rotating shaft 132 at point A2 along the span direction, and the second support member 122 is provided with a plurality of second connecting holes 1221 at intervals at the turning point of the broken line segment or arc segment to be rotatably connected with the second rotating shaft 132.

[0037] In this embodiment, the first connection holes 1211 and the second connection holes 1221 are arranged at equal intervals, and the arrangement interval of the first connection holes 1211 is equal to the arrangement interval of the second connection holes 1221. In addition, the intervals between the points A1 and A2 on each pedal 11 are equal. In this way, the points A1 and A2 on any two adjacent pedals 11 are constructed as the four vertices of a parallelogram, so that when the device 1 changes the setting angle, the pedals 11 can remain parallel.

[0038] In order to keep the pedal 11 in a horizontal state at all times, the device 1 is provided with a reference surface 23. The reference surface 23 is located at the connection between the support assembly 12 and the fixed platform 2. Specifically, Figures 1 to 3As shown, the fixed platform 2 is provided with a first connecting rod 21 at the B1 point along the span direction, and the first support member 121 is hinged to the fixed platform 2 through the first connecting rod 21. Similarly, the fixed platform 2 is provided with a second connecting rod 22 at the B2 point along the span direction, and the second support member 122 is hinged to the fixed platform 2 through the second connecting rod 22. The plane formed by the first connecting rod 21 and the second connecting rod 22 is the reference plane 23. The reference plane 23 is set horizontally, that is, the horizontal inclination angle of the line connecting the B1 point and the B2 point is not greater than 15°.

[0039] In terms of positional relationship, Figure 3 As shown, the spacing between the points B1 and B2 is equal to the spacing between the adjacent points A1 and A2, and in another direction, the distance from the point B1 to the point A1 is equal to the distance from the point B2 to the point A2. In other words, the points B1 and B2 and the adjacent points A1 and A2 are constructed as the four vertices of a parallelogram. At this time, the pedals 11 adjacent to the reference plane 23 remain horizontal like the reference plane 23. As can be seen from the foregoing, the pedals 11 of the device 1 remain parallel to each other, so no matter how the device 1 changes the installation angle, all the pedals 11 remain horizontal like the reference plane 23.

[0040] In order to facilitate understanding of the core essence of the present technical solution, the positional relationship between the first support member 121 and the second support member 122 is now described. Relative to the fixed platform 2, the first connecting rod 21 is closer to the end of the fixed platform 2 than the second connecting rod 22, so that the first support member 121 will not be stuck when it rotates downward from a horizontal position. Relative to the pedal 11, the second support member 122 is arranged on the side of the first support member 121 facing the pedal 11, that is, in the span direction of the pedal 11, the second support member 122 is closer to the pedal 11 than the first support member 121, avoiding the second rotating shaft 132 being stuck by the first support member 121, so that the second support member 122 cannot drive the A2 point to move between the upper and lower sides of the first support member 121.

[0041] like Figures 3 to 5As shown, when the device 1 is rotated upward from a horizontal position to be lifted, the point A2 of the pedal 11 needs to move from the lower side of the first support member 121 to the upper side. If the second support member 122 is a straight rod structure, it will inevitably be stuck by the first rotating shaft 131 at the point A1 and cannot move upward, resulting in the inability to lift the device 1. This is a problem in the prior art. To solve this technical problem, the second support member 122 is constructed as a toothed structure with a plurality of broken line segments or arc segments, so as to make way from above or below the first rotating shaft 131 at the point A1. In this embodiment, the second support member 122 bypasses the first rotating shaft 131.

[0042] like Figures 3 to 5 As shown, when the device 1 is in a relatively horizontal state, a certain distance is left between the broken line segment or arc segment of the second support member 122 and the point A1. If the device 1 is lowered at this time, that is, rotated downward around the point B1, since the pedal 11 always remains horizontal, the point A2 begins to move below the first support member 121. As the angle between the pedal 11 and the first support member 121 gradually increases, the second support member 122 gradually approaches the point A1 until it abuts against the first rotating shaft 131, and the device 1 can no longer be lowered. It can be seen that the smaller the angle of the broken line segment of the second support member 122, or the larger the curvature of the arc segment, the larger the angle at which the device 1 can be lowered. Figures 3 to 5 As shown, if the device 1 rotates upward around the point B1 from a horizontal position, the point A2 starts to move above the first support member 121. In this case, the second support member 122 gradually moves away from the point A1 and is not stuck with the first rotating shaft 131. Theoretically, the device 1 can be rotated to a nearly vertical state.

[0043] It is understandable that, in other embodiments, the second support member 122 may also bypass the bottom of the first rotating shaft 131. In this case, the device 1 may be lowered to a nearly vertical state, and the maximum angle of upward lifting also depends on the folding angle of the folded line segment or the curvature of the arc segment in the second support member 122.

[0044] In actual use, as the erection angle changes, the horizontal projection length of the device 1 also changes, which requires that the device 1 can move smoothly in the horizontal direction to adaptively adjust the erection angle according to the height of the erection support. Therefore, the device 1 is also provided with a set of floor wheels at the free end. Furthermore, a set of tracks matching the floor wheels can also be provided, and the tracks are detachably connected to the erection support.

[0045] In summary, the adaptive passage device 1 that can be erected at multiple angles provided in this embodiment constructs the second support member 122 as a toothed structure with a plurality of broken line segments or arc segments, so as to leave a sufficient moving distance above or below the first rotating shaft 131, thereby getting rid of the dilemma of being able to only be erected downward or upward in the prior art, and meeting different passage needs with a larger erection angle. In addition, the device 1 is mostly hinged between components, and the landing wheel is provided at the free end, so that the erection angle can be adaptively adjusted according to the height change of the free end erection support without manual intervention. For example, when the free end of the device 1 is erected on the top of the floating box on the water, the device 1 can adjust the erection angle automatically according to the change of the water level. When the top of the floating box is higher than the fixed platform 2, the free end of the device 1 can also be lifted up, so as to avoid the components being pressed, bent, or even broken by the buoyancy.

[0046] The above description is only a preferred specific implementation mode of the present invention, and does not limit the patent scope of the present invention. Any technical equivalent changes made using the contents of the present invention specification shall fall within the protection scope of the present invention.

Claims

1. An adaptive passage device that can be set up at multiple angles, characterized in that: One end of the device is a fixed end, which is hinged to a fixed platform; the other end is a mounting end, which swings in a vertical plane with the fixed end as the center; The device comprises a plurality of pedals and two groups of support assemblies; the pedals are arranged between the two groups of support assemblies arranged opposite to each other and are arranged at intervals along the length direction of the support assemblies; The support assembly includes a first support member and a second support member; on both sides of the pedal, the first support member is hinged to one end of the pedal at point A1, and the second support rod is hinged to the other end of the pedal at point A2; the points A1 and A2 on the same side of any two adjacent pedals are constructed as four vertices of a parallelogram; In the span direction of the pedal, the second support member is arranged on the side of the first support member facing the pedal; the second support member is constructed as a tooth-like structure, and the second support member between any two adjacent points A2 is constructed as a broken line segment or an arc segment to bypass the point A1 above or below the point A1.

2. The adaptive passage device that can be set up at multiple angles according to claim 1, characterized in that: The first support member and the second support member are hinged to the fixed platform at point B1 and point B2, respectively. Point B1 is arranged on the side of point B2 facing the device. The horizontal inclination angle of the line connecting point B1 and point B2 is not greater than 15°. The point B1, point B2 and a group of points A1 and A2 on adjacent pedals are constructed as four vertices of a parallelogram.

3. The adaptive passage device that can be set up at multiple angles according to claim 2, characterized in that: The second supporting member between the point B2 and the adjacent point A2 is configured as a broken line segment or an arc segment so as to bypass the point A1 above or below the point A1.

4. The adaptive passage device that can be set up at multiple angles according to claim 2, characterized in that: The fixed platform is provided with a first connecting rod at the B1 point along the span direction, and the first supporting member is rotatably connected to the first connecting rod; The fixed platform is provided with a second connecting rod at the B2 point along the span direction, and the second supporting member is rotatably connected to the second connecting rod.

5. The adaptive passage device that can be set up at multiple angles according to claim 1, characterized in that: The pedal is provided with a first rotating shaft at point A1 along the span direction, and a second rotating shaft at point A2 along the span direction.

6. The adaptive passage device capable of being set up at multiple angles according to claim 5, characterized in that: The first support member is provided with a plurality of first connection holes at intervals along the length direction so as to be rotatably connected to the first rotating shaft; The second supporting member is provided with a plurality of second connecting holes at intervals at the turning point of the folded line segment or the arc segment so as to be rotatably connected with the second rotating shaft.

7. The adaptive passage device capable of being set up at multiple angles according to claim 6, characterized in that: The first connection holes and the second connection holes are arranged at equal intervals, and the arrangement interval of the first connection holes is equal to the arrangement interval of the second connection holes.

8. The adaptive passage device that can be set up at multiple angles according to claim 1, characterized in that: When the second support member is configured as a zigzag tooth structure, the folding angle of the zigzag segment is negatively correlated with the angle of the device. When the second support member is configured as an arc-shaped toothed structure, the curvature of the arc segment is positively correlated with the angle at which the device is erected.

9. The adaptive passage device capable of being set up at multiple angles according to claim 1, characterized in that: The device also includes a set of floor wheels; the floor wheels are arranged at the erection end.

10. An adaptive passage device that can be set up at multiple angles according to any one of claims 1 to 9, characterized in that: The device is made of aluminum alloy or stainless steel.

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