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

Abstract

The utility model 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 utility model relates to movable ladder equipment field especially the self -adaptation passing device of multi -angle erection. BACKGROUND

[0002] Movable ladder is the common passing equipment in people's daily work and life, it is widely used with the advantages of light structure, erection flexibility and high safety. Especially in shipping wharf or offshore construction platform, the existing water level self -adaptation movable ladder can adjust the erection angle adaptively according to the tidal fluctuation, greatly facilitates people's passing. Such as the patent for utility model CN209683950U discloses a passenger wharf ship shore connecting device suitable for large water level difference, with the multiple groups of support rods that are parallel to each other support the multistage steps that can keep level at any time, and the hinge is used between components, not only can the water level change be adaptively adjusted erection angle, also make the device have higher slip resistance under large water level difference.

[0003] But the existing such device support rod can not be up and down staggered, thus can only carry out the one -way erection of downward. If the high water level is encountered, the height of the free end erection support is greater than the fixed end, the device is prone to plastic damage such as bending and fracture between components due to the buoyancy, and cannot meet the passing needs. Therefore, it is urgent to invent the self -adaptation passing device of multi -angle erection, under the premise of keeping the step level, the bidirectional erection angle of lowering and lifting is adaptively adjusted to the height change of the free end erection support. UTILITY MODEL CONTENTS

[0004] The utility model provides a self -adaptation passing device of multi -angle erection, under the premise of keeping the step level, the bidirectional erection angle of lowering and lifting is adaptively adjusted to the height change of the free end erection support.

[0005] In order to solve the above -mentioned technical problem, the utility model provides a self -adaptation passing device of multi -angle erection, one end of the device is the fixed end, is hinged to the fixed platform, the other end is the erection end, and the fixed end is the center of oscillation in the vertical plane.

[0006] The device includes a plurality of steps and two groups of support components, the steps are arranged between the two groups of support components arranged oppositely, and are arranged at intervals along the length direction of the support component.

[0007] The support component includes a first support and a second support, on both sides of the step, the first support is hinged to A1 point with one end of the step, and the second support is hinged to A2 point with the other end of the step, and the A1 point and A2 point on the same side of any adjacent two steps are configured as four vertices of a parallelogram.

[0008] The second support member is disposed on the side of the first support member toward the footboard in the span direction of the footboard; the second support member is configured as a tooth-like structure, and the second support member between any two adjacent A2 points is configured as a broken line segment or an arc segment to bypass the A1 point above or below the A1 point.

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

[0010] The B1 point and the B2 point and a group of A1 points and A2 points on the adjacent footboard are configured as four vertices of a parallelogram.

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

[0012] In a preferred embodiment, the fixed platform is provided with a first connecting rod at the B1 point in the span direction, and the first support member is rotationally connected to the first connecting rod.

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

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

[0015] In a preferred embodiment, the first support member is provided with a plurality of first connecting holes spaced apart in the length direction to rotationally connect to the first rotating shaft.

[0016] The second support member is provided with a plurality of second connecting holes spaced apart at the turning points of the broken line segment or the arc segment to rotationally connect to the second rotating shaft.

[0017] In a preferred embodiment, the first connecting holes and the second connecting holes are equally spaced, and the spacing of the first connecting holes is equal to the spacing of the second connecting holes.

[0018] In a preferred embodiment, when the second support member is configured as a tooth-like structure in the shape of a broken line, the size of the broken angle of the broken line segment is negatively correlated with the size of the erection angle of the device.

[0019] When the second support is configured as an arc-shaped tooth structure, the arc size of the arc segment is positively correlated with the size of the device erection angle.

[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 scheme of the utility model has the following beneficial effects:

[0023] The self-adapting passing device capable of multi-angle erection provided by the utility model has the second support configured as a tooth structure with a plurality of broken line segments or arc segments, so as to leave sufficient moving space above or below the first rotating shaft, and the device can be erected downward or upward, and the different passing needs can be met at a large erection angle.

[0024] The self-adapting passing device capable of multi-angle erection provided by the utility model is hinged between components, and the relative position relationship between the components is reasonably arranged, so that the erection angle can be automatically adjusted according to the height change of the free end without manual intervention. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 It is a perspective view of the device in the embodiment of the utility model;

[0026] Fig. 2 It is a top view of the device in the embodiment of the utility model;

[0027] Fig. 3 It is a side view when the erection end of the device in the embodiment of the utility model is lowered;

[0028] Fig. 4 It is a side view when the erection end of the device in the embodiment of the utility model is placed horizontally;

[0029] Fig. 5 It is a side view when the erection end of the device in the embodiment of the utility model is lifted up.

[0030] (Part of the drawings is drawn with dotted lines in part, which is to more intuitively reflect the technical scheme of the embodiment, and does not completely represent the outline of the real three-dimensional object.)

[0031] The diagram is labeled as follows: 1-Adaptive passage device that can be erected 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 pivot, 132-Second pivot, 2-Fixed platform, 21-First connecting rod, 22-Second connecting rod, 23-Reference plane. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. 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 a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] like Figs. 1-5 As shown, this embodiment of the utility model provides an adaptive passage device 1 that can be erected at multiple angles. One end is a fixed end, hinged to a fixed platform 2; the other end is an erection end, which swings in a vertical plane around the fixed end. For simplicity, "the device 1" mentioned below refers to the adaptive passage device 1 that can be erected at multiple angles. The device 1 includes several pedals 11 and two sets of support components 12. Figs. 1-2As shown, resembling a conventional movable ladder, two sets of support components 12 are arranged opposite each other and hinged to the fixed platform 2. The steps 11 are horizontally positioned between the two sets of support components 12 and spaced apart along the length of the support components 12. It is understood that the steps 11 are not limited to an absolutely horizontal state; as long as normal walking is not affected, the horizontal inclination angle of the steps 11 can be set to no more than 15°. To ensure safe passage, in this embodiment, the steps 11 and the support components 12 are made of aluminum alloy or stainless steel, giving the device 1 the advantages of being lightweight and high-strength.

[0036] like Figs. 1-2 As shown, a set of support components 12 includes a first support member 121 and a second support member 122. The first support member 121 has a straight rod structure, while the second support member 122 is constructed as a toothed structure with several 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 has a first rotating shaft 131 passing through it along the span direction at point A1, and the first support member 121 has several first connecting holes 1211 spaced apart along the length direction for rotatable connection with the first rotating shaft 131. Similarly, the pedal 11 has a second rotating shaft 132 passing through it along the span direction at point A2, and the second support member 122 has several second connecting holes 1221 spaced apart at the turning points of the broken line segments or arc segments for rotatable connection with the second rotating shaft 132.

[0037] In this embodiment, the first connecting hole 1211 and the second connecting hole 1221 are equally spaced, and the spacing between the first connecting holes 1211 and the second connecting holes 1221 is equal. Furthermore, the distance between points A1 and A2 on each pedal 11 is equal. In this way, points A1 and A2 on any two adjacent pedals 11 are constructed as the four vertices of a parallelogram, ensuring that the pedals 11 remain parallel when the installation angle of the device 1 is changed.

[0038] To ensure that the pedals 11 remain horizontal at all times, the device 1 provides a reference surface 23. The reference surface 23 is located at the connection point between the support assembly 12 and the fixed platform 2. Specifically, as shown... Figs. 1-3As shown, the fixed platform 2 is provided with a first connecting rod 21 at the B1 point in the span direction, and the first support 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 in the span direction, and the second support 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 horizontally arranged, 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, as shown, Fig. 3 the distance between the B1 point and the B2 point is equal to the distance between an adjacent set of the A1 point and the A2 point, and in another direction, the distance from the B1 point to the A1 point is equal to the distance from the B2 point to the A2 point. In other words, the B1 point, the B2 point and the adjacent set of the A1 point and the A2 point are configured as four vertices of a parallelogram. At this time, the tread plate 11 adjacent to the reference plane 23 remains horizontal as the reference plane 23. As known from the foregoing, the tread plates 11 of the device 1 are all parallel to each other, so that all the tread plates 11 remain horizontal as the reference plane 23 regardless of how the device 1 changes the erection angle.

[0040] In order to more conveniently understand the core of the technical solution, the positional relationship between the first support 121 and the second support 122 will be 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 121 is not stuck when it is turned downward from the horizontal position. Relative to the tread plate 11, the second support 122 is arranged on the side of the first support 121 facing the tread plate 11, that is, in the span direction of the tread plate 11, the second support 122 is closer to the tread plate 11 than the first support 121, avoiding that the second support 122 cannot drive the A2 point to move between the upper side and the lower side of the first support 121 because the second rotating shaft 132 is stuck by the first support 121.

[0041] As shown, Figs. 3-5As shown, when the device 1 is rotated upward from a horizontal position to lift, point A2 of the pedal 11 needs to move from the lower side to the upper side of the first support member 121. If the second support member 122 is a straight rod structure, it will inevitably be stuck at point A1 by the first pivot 131 and unable to move upward, causing the device 1 to be unable to lift. This is a problem existing in the prior art. To solve this technical problem, the second support member 122 is constructed as a toothed structure with several broken line segments or arc segments, so as to make way for the first pivot 131 from above or below at point A1. In this embodiment, the second support member 122 passes over the first pivot 131 from above.

[0042] like Figs. 3-5 As shown, when the device 1 is in a relatively horizontal state, there is a certain distance between the broken line segment or arc segment of the second support member 122 and point A1. If the device 1 is lowered at this time, that is, rotated downwards around point B1, since the pedal 11 always remains horizontal, 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 point A1 until it abuts the first rotating shaft 131, and the device 1 can no longer be lowered. Therefore, it can be seen that the smaller the angle of the broken line segment of the second support member 122, or the larger the arc of the arc segment, the greater the angle at which the device 1 can be lowered. Figs. 3-5 As shown, if the device 1 rotates upwards from a horizontal position around point B1, point A2 begins to move above the first support member 121. In this case, the second support member 122 gradually moves away from point A1 and does not jam with the first rotating shaft 131. Theoretically, the device 1 can rotate to a near-vertical state.

[0043] It is understood that in other embodiments, the second support member 122 may also pass under the first pivot 131. In this case, the device 1 can be lowered to a near-vertical position, and the maximum upward angle also depends on the angle of the broken line segment or the curvature of the arc segment in the second support member 122.

[0044] In practical use, the horizontal projection length of the device 1 changes with the erection angle, requiring the device 1 to 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 equipped with a set of landing wheels at its free end. Furthermore, a set of tracks matching the landing wheels can also be provided, and the tracks are detachably connected to the erection support.

[0045] To sum up, the self-adaptive passing device 1 provided by the embodiment can leave enough moving distance above or below the first rotating shaft 131 by configuring the second support 122 as a tooth-shaped structure with several fold line segments or arc line segments, thus getting rid of the predicament that the prior art can only be set up downward or upward, and meeting different passing needs with a larger setting angle. In addition, the device 1 is mostly hinged between components, and the free end is provided with the landing wheel, so that the setting angle can be automatically adjusted according to the height change of the setting support of the free end without manual intervention. For example, when the free end of the device 1 is set up on the top of a water floating box, the device 1 can automatically adjust the setting angle 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, thus avoiding that the components are pressed, bent or even broken due to the action of the buoyancy.

[0046] The above merely describes the preferred specific embodiments of the present application, and is not intended to limit the patent range of the present application. Any equivalent transformation made by using the content of the present application description shall fall within the protection scope of the present application.

Claims

1. A multi-angle erectable self-adapting passage device, characterized in that: One end of the device is a fixed end, hinged to a fixed platform; the other end is an erection end, swinging in a vertical plane with the fixed end as the center; The device comprises several steps and two groups of support components; the steps are arranged between the two groups of support components arranged oppositely, and are arranged at intervals along the length direction of the support components; The support component comprises a first support and a second support; on both sides of the step, the first support is hinged to A1 point at one end of the step, and the second support is hinged to A2 point at the other end of the step; the A1 points and A2 points on the same side of any two adjacent steps are configured as four vertices of a parallelogram; In the span direction of the step, the second support is arranged on the side of the first support facing the step; the second support is configured as a toothed structure, and the second support between any two adjacent A2 points is configured as a broken line segment or an arc segment to bypass the A1 point above or below the A1 point.

2. The multi-angulation deployable self-adapting passage device of claim 1, wherein: The first support and the second support are respectively hinged to B1 point and B2 point of the fixed platform, and the B1 point is arranged on the side of the B2 point facing the device; the horizontal inclination angle of the line connecting the B1 point and the B2 point is not greater than 15°; The B1 point and the B2 point and a group of A1 points and A2 points on the adjacent step are configured as four vertices of a parallelogram.

3. The multi-angulation erectable adaptive access device of claim 2, wherein: The second support between the B2 point and the adjacent A2 point is configured as a broken line segment or an arc segment to bypass the A1 point above or below the A1 point.

4. The multi-angulation deployable adaptive access device of claim 2, wherein: The fixed platform is provided with a first connecting rod at the B1 point in the span direction, and the first support is rotationally connected with the first connecting rod; The fixed platform is provided with a second connecting rod at the B2 point in the span direction, and the second support is rotationally connected with the second connecting rod.

5. The multi-angulation capable adaptive access device of claim 1, wherein: The step is provided with a first rotating shaft at A1 point in the span direction, and a second rotating shaft at A2 point in the span direction.

6. The multi-angulation erectable adaptive access device of claim 5, wherein: The first support is provided with a plurality of first connecting holes at intervals in the length direction, to be rotationally connected with the first rotating shaft; The second support is provided with a plurality of second connecting holes at intervals at the turning points of the broken line segment or the arc segment, to be rotationally connected with the second rotating shaft.

7. The multi-angulation erectable adaptive access device of claim 6, wherein: The first connecting holes and the second connecting holes are arranged at equal intervals, and the arrangement interval of the first connecting holes is equal to that of the second connecting holes.

8. The multi-angulatable adaptive transit device of claim 1, wherein: When the second support is configured as a broken line toothed structure, the size of the broken angle of the broken line segment is negatively correlated with the size of the erection angle of the device; When the second support is configured as an arc toothed structure, the size of the arc of the arc segment is positively correlated with the size of the erection angle of the device.

9. The multi-angulatable adaptive transit device of claim 1, wherein: The device further comprises a group of floor wheels; the floor wheels are arranged at the erection end.

10. The multi-angled erectable self-adapting passage device according to any one of claims 1-9, wherein: The material of the device is aluminum alloy or stainless steel.

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