Step loop structure of short-span horizontal moving walkway

Abstract

Disclosed in the present invention is a step loop structure of a short-span horizontal moving walkway, the step loop structure comprising a truss, and the truss comprising a top main chord beam, a bottom main chord beam and side beams for connecting the top main chord beam to the bottom main chord beam, wherein a step loop is arranged on the truss, and comprises a first rotary shaft and a second rotary shaft which are respectively arranged at two ends of the truss; first sprocket wheels are provided at two ends of the first rotary shaft, and second sprocket wheels are provided at two ends of the second rotary shaft; a chain is wound around the first sprocket wheel and the second sprocket wheel on the same side and meshes with the first sprocket wheel and the second sprocket wheel, and the parts of the chain located above and below the first sprocket wheel and the second sprocket wheel are all in a horizontal state; step boards are provided between the chains on two sides; and each chain comprises chain-link plates, chain-link pins and rollers, the rollers being arranged between the two columns of chain-link plates and being rotationally connected to the chain-link pins. The present invention has a simpler structure, the strength of the truss is more stable, and the demand for a horizontal walkway having a span smaller than 12 m is satisfied, thereby improving the product coverage range.

Description

A stairway structure for a short-span horizontal moving walkway Technical Field

[0001] This invention relates to the field of moving walkway technology, and in particular to a stairway structure for a short-span horizontal moving walkway. Background Technology

[0002] In horizontal moving walkways, the span is a crucial parameter for measuring the effective working range of the walkway. As shown in Figure 1, the shortest span of a conventional stairway structure is approximately 12m. However, conventional stairways cannot accommodate spans shorter than 12m required for special projects. Summary of the Invention

[0003] To address the aforementioned technical problems, the objective of this invention is to provide a stairway structure for a short-span horizontal moving walkway, thereby meeting the demand for short-span moving walkways.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A staircase structure for a short-span horizontal automatic walkway includes a truss. The truss includes a top main chord beam, a bottom main chord beam, and side beams connecting the top and bottom main chord beams. The bottom main chord beam is a straight structure. A step loop is provided on the truss. The step loop includes a first pivot and a second pivot respectively located at both ends of the truss. A first sprocket is provided at both ends of the first pivot, and a second sprocket is provided at both ends of the second pivot. A chain meshing with the first and second sprockets is wrapped around the first and second sprockets on the same side. The portion of the chain above and below the first and second sprockets is horizontal. A step is provided between the chains on both sides. The chain includes a link plate, a link pin, and a roller. The link plate has two link holes. The link plates connected in sequence are rotatably connected by link pins passing through the link holes. The roller is located between two rows of link plates connected by link pins and is rotatably connected to the link pins.

[0006] Preferably, a horizontal upper guide rail is provided below the portion of the chain located above the first sprocket and the second sprocket, and a horizontal lower guide rail is provided below the portion of the chain located below the first sprocket and the second sprocket, with the chain rollers rolling along the upper or lower guide rail.

[0007] Preferably, both ends of the upper and lower guide rails are fixedly connected to the truss.

[0008] Preferably, the guide rail support plate is fixedly connected to the side beam, and the guide rail support plate is provided with an upper support portion for supporting the upper guide rail and a lower support portion for supporting the lower guide rail.

[0009] Preferably, a horizontal short rail is provided above the lower guide rail, and the chain passes between the lower guide rail and the short rail.

[0010] Preferably, the ladder circuit includes a connecting shaft that connects the chain link pins on both sides, and a connecting plate is provided on the pedal. The connecting plate has an arc-shaped groove that fits onto the connecting shaft.

[0011] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0012] The staircase structure of the short-span horizontal automatic walkway of this invention includes a truss with a step circuit. The step circuit includes a first rotating shaft and a second rotating shaft respectively located at both ends of the truss. A first sprocket is located at both ends of the first rotating shaft, and a second sprocket is located at both ends of the second rotating shaft. A chain meshing with the first and second sprockets is wrapped around the first and second sprockets on the same side. The portion of the chain above and below the first and second sprockets is horizontal. A step is provided between the chains on both sides. The return portion of the lower part of the step circuit is changed to a horizontal structure to avoid the problem that the span cannot be further reduced due to the excessively long transition arc, thus meeting the requirements of special projects. In addition, the bottom main chord beam of the truss is changed to a straight structure. The design is optimized to accommodate the changes in the step circuit, making the structure simpler and the truss strength more stable. Attached Figure Description

[0013] The technical solution of the present invention will be further described below with reference to the accompanying drawings:

[0014] Figure 1 is a front view of the staircase structure of a conventional pedestrian walkway;

[0015] Figure 2 is a front view of the stairway structure of the short-span horizontal automatic walkway of the present invention;

[0016] Figure 3 is a partial structural schematic diagram of the stepped loop of the short-span horizontal automatic walkway of the present invention.

[0017] Figure 4 is a perspective view of the step circuit of the short-span horizontal automatic walkway structure of the present invention;

[0018] Figure 5 is a magnified view of part A in Figure 4.

[0019] The components are: 1. Truss; 11. Top main chord beam; 12. Bottom main chord beam; 13. Side beam; 2. First pivot; 3. Second pivot; 4. First sprocket; 5. Second sprocket; 6. Chain; 61. Chain link plate; 62. Chain link pin; 63. Roller; 7. Pedal; 8. Upper guide rail; 9. Lower guide rail; 10. Guide rail support plate; 101. Upper support part; 102. Lower support part; 21. Short rail; 22. Connecting shaft; 23. Connecting plate. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0021] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Figure 2 shows the staircase structure of the short-span horizontal automatic walkway of the present invention, including a truss 1. The truss 1 includes a top main chord beam 11, a bottom main chord beam 12, and a side beam 13 connecting the top main chord beam 11 and the bottom main chord beam 12. The bottom main chord beam 12 has a straight structure, which makes the truss 1 more stable. A step circuit is installed on the truss 1. The step circuit includes a first rotating shaft 2 and a second rotating shaft 3 respectively installed at both ends of the truss 1. The two ends of the first rotating shaft 2 are connected to a first sprocket 4, and the two ends of the second rotating shaft 3 are connected to a second sprocket 5. A chain 6 that meshes with the first sprocket 4 and the second sprocket 5 is wrapped around the first sprocket 4 and the second sprocket 5 on the same side. The part of the chain 6 above the first sprocket 4 and the part below the second sprocket 5 is in a horizontal state. The transition arc is eliminated, and the chain 6 is directly flattened, which simplifies the structure and further reduces the span.

[0023] A pedal 7 is installed between the chains 6 on both sides, as shown in Figure 5. The chain 6 includes chain link plates 61, chain link pins 62, and rollers 63. Two chain link holes are machined on the chain link plates 61. The chain link plates 61 connected in sequence are rotatably connected by chain link pins 62 passing through the chain link holes. The rollers 63 are located between the two rows of chain link plates 61 connected by chain link pins 62 and are rotatably connected to the chain link pins 62. A horizontal upper guide rail 8 is installed below the portion of the chain 6 above the first sprocket 4 and the second sprocket 5. A horizontal lower guide rail 9 is installed below the portion of the chain 6 below the first sprocket 4 and the second sprocket 5. The rollers 63 of the chain 6 roll along the upper guide rail 8 or the lower guide rail 9 to prevent the chain 6 from sagging under load, making the chain 6 move more smoothly and reliably. The two ends of the upper guide rail 8 and the lower guide rail 9 are fixedly connected to the truss 1. The stairway structure also includes a guide rail support plate 10 fixedly connected to the side beam 13. The guide rail support plate 10 is machined with an upper support portion 101 for supporting the upper guide rail 8 and a lower support portion 102 for supporting the lower guide rail 9. The middle section of the upper guide rail 8 is placed on the upper support portion 101, and the lower guide rail 9 is placed on the lower support portion 102, making the upper guide rail 8 and the lower guide rail 9 more stable. A horizontal short rail 21 is installed above the lower guide rail 9. The chain 6 passes between the lower guide rail 9 and the short rail 21, further improving the stability of the chain 6 operation, making the pedal 7 move more smoothly, and improving the experience of pedestrians on the moving walkway.

[0024] The ladder circuit includes a connecting shaft 22, which connects to the chain link pins 62 on both sides. The pedal 7 has a connecting plate 23, which has an arc-shaped groove. The groove is fitted onto the connecting shaft 22, making the pedal 7 move more flexibly with the chain 6.

[0025] This invention relates to a short-span horizontal automatic walkway. The staircase structure of the walkway is modified by making the lower return section of the staircase loop horizontal, avoiding the problem that the span cannot be further reduced due to the excessively long transition arc. After simplifying the structure, the minimum span can be 7.5m, meeting the requirements of special projects. In addition, the bottom main chord beam of the truss is changed to a straight structure. The design is optimized to accommodate the changes in the staircase loop, making the structure simpler and the truss strength more stable, meeting the needs of horizontal walkways with a span of less than 12m, thereby increasing the coverage area of ​​the product.

[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A stairway structure for a short-span horizontal moving walkway, characterized by: The truss comprises a top chord, a bottom chord and a side beam connecting the top chord and the bottom chord, the bottom chord is flat; a ladder circuit is arranged on the truss, the ladder circuit comprises a first rotating shaft and a second rotating shaft arranged at two ends of the truss respectively, first sprockets are arranged at two ends of the first rotating shaft, second sprockets are arranged at two ends of the second rotating shaft, chains meshing with the first sprockets and the second sprockets are arranged on the first sprockets and the second sprockets on the same side, the chains are in a horizontal state at a position above the first sprockets and the second sprockets and at a position below the first sprockets and the second sprockets, and a pedal is arranged between the chains on two sides.

2. The stairway structure of a short-span horizontal moving walk according to claim 1, characterized in that: A horizontal upper guide rail is arranged at a position below the chains above the first sprockets and the second sprockets, a horizontal lower guide rail is arranged at a position below the chains below the first sprockets and the second sprockets, and the rollers of the chains roll along the upper guide rail or the lower guide rail.

3. The stairway structure of a short-span horizontal moving walk according to claim 2, characterized in that: Two ends of the upper guide rail and the lower guide rail are fixedly connected with the truss.

4. The stairway structure of a short-span horizontal moving walk according to claim 2, characterized in that: A guide rail support plate is fixedly connected with the side beam, the guide rail support plate is provided with an upper supporting portion for supporting the upper guide rail and a lower supporting portion for supporting the lower guide rail.

5. The stairway structure of a short-span horizontal moving walk according to claim 2, characterized in that: A horizontal short rail is arranged above the lower guide rail, and the chains pass between the lower guide rail and the short rail.

6. The stairway structure of a short-span horizontal moving walk according to claim 1, characterized in that: The ladder circuit comprises a connecting shaft connecting the chain pins on two sides, the pedal is provided with a connecting plate, the connecting plate is provided with an arc-shaped groove, and the groove is sleeved on the connecting shaft.

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