Ladder road structure of short-span horizontal moving sidewalk

Abstract

The utility model discloses a ladder way structure of a short span horizontal moving sidewalk, which comprises a truss, the truss comprises a top main string beam, a bottom main string beam and a side beam connecting the top main string beam and the bottom main string beam, the truss is provided with a step loop, and the step loop comprises a first rotating shaft and a second rotating shaft which are respectively arranged at two ends of the truss. First chain wheels are arranged at the two ends of the first rotating shaft, second chain wheels are arranged at the two ends of the second rotating shaft, chains meshed with the first chain wheels and the second chain wheels surround the first chain wheels and the second chain wheels on the same side, and the parts, located above and below the first chain wheels and the second chain wheels, of the chains are in a horizontal state. A pedal is arranged between the chains on the two sides; the chain comprises chain link plates, chain link pins and idler wheels, and the idler wheels are arranged between the two rows of chain link plates and rotationally connected with the chain link pins. The structure is simpler, the strength of the truss is more stable, the requirement for a horizontal sidewalk with the span smaller than 12 m is met, and therefore the coverage area of a product is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of moving walkways, in particular to a ladder structure of a short-span horizontal moving walkway. Background Art

[0002] In horizontal moving walkways, the span is an important parameter used to measure the effective working range of the horizontal walkway. Figure 1 As shown, the shortest span of the designed sidewalk of the conventional ladder structure is about 12m, but when a special project requires a shorter span of less than 12m, the conventional ladder structure cannot be realized. Utility Model Content

[0003] In view of the above-mentioned technical problems, the purpose of the utility model is to provide a ladder structure for a short-span horizontal moving walkway to meet the demand for short-span moving walkways.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A ladder structure for a short-span horizontal moving walkway, comprising a truss, the truss comprising a top main chord beam, a bottom main chord beam and a side beam connecting the top main chord beam and the bottom main chord beam, the bottom main chord beam being a straight structure; a step loop is arranged on the truss, the step loop comprises a first rotating shaft and a second rotating shaft respectively arranged at two ends of the truss, a first sprocket is arranged at both ends of the first rotating shaft, a second sprocket is arranged at both ends of the second rotating shaft, a chain meshing with the first sprocket and the second sprocket is surrounded by the first sprocket and the second sprocket on the same side, the part of the chain located above and below the first sprocket and the second sprocket are both in a horizontal state, and a pedal is arranged between the chains on both sides; the chain comprises a link plate, a link pin and a roller, the link plate is provided with two link holes, the link plates connected in sequence are rotatably connected by the link pin passing through the link holes, and the roller is arranged between two rows of link plates connected by the link pin and is rotatably connected with the link pin.

[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, and the rollers of the chain roll along the upper guide rail or the lower guide rail.

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

[0008] Preferably, it comprises a guide rail support plate fixedly connected to the side beam, and 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.

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

[0010] Preferably, the step circuit includes a connecting shaft, the connecting shaft connects the chain link pins on both sides, a connecting plate is provided on the pedal, an arc-shaped groove is provided on the connecting plate, and the groove is sleeved on the connecting shaft.

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

[0012] The ladder structure of the utility model short span horizontal moving walkway comprises a truss, on which a step loop is arranged, the step loop comprises a first rotating shaft and a second rotating shaft respectively arranged at two ends of the truss, a first sprocket is arranged at both ends of the first rotating shaft, a second sprocket is arranged at both ends of the second rotating shaft, chains meshing with the first sprocket and the second sprocket are wound around the first sprocket and the second sprocket on the same side, parts of the chain above and below the first sprocket and the second sprocket are both in a horizontal state, a pedal is arranged between the chains on both sides, the return part at the lower part of the step loop is changed into a horizontal structure to avoid the problem that the span cannot be further reduced due to the excessively long transition arc, and to meet the requirements of special projects, in addition, the bottom main chord beam of the truss is changed into a straight structure, and the design is optimized to match the changes of the step loop, the structure is simpler, and the truss strength is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0014] Attached Figure 1 It is a front view of the ladder structure of a conventional sidewalk;

[0015] Attached Figure 2 It is a front view of the ladder structure of the short-span horizontal moving walkway of the utility model;

[0016] Attached Figure 3 It is a partial structural schematic diagram of the ladder path structure volume step loop of the short-span horizontal moving walkway of the utility model;

[0017] Attached Figure 4 A three-dimensional diagram of a step loop of a ladder structure of a short-span horizontal moving walkway of the utility model;

[0018] Attached Figure 5 For attachment Figure 4 A partial enlarged view of point A.

[0019] Among them: 1. Truss; 11. Top main chord beam; 12. Bottom main chord beam; 13. Side beam; 2. First rotating shaft; 3. Second rotating shaft; 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 supporting part; 102. Lower supporting part; 21. Short rail; 22. Connecting shaft; 23. Connecting plate. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with 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 making a clearer and more definite definition of the protection scope of the present invention.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] As attached Figure 2 The utility model shows a ladder structure of a short span horizontal moving walkway, including a truss 1, the truss 1 including 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 is a straight structure, so that the strength of the truss 1 is more stable. A ladder loop is installed on the truss 1, and the ladder loop includes a first rotating shaft 2 and a second rotating shaft 3 respectively installed at both ends of the truss 1, the first rotating shaft 2 is connected to a first sprocket 4 at both ends, and the second rotating shaft 3 is connected to a second sprocket 5 at both ends, and the first sprocket 4 and the second sprocket 5 on the same side are surrounded by a chain 6 meshing with the first sprocket 4 and the second sprocket 5, and the parts of the chain 6 above and below the first sprocket 4 and the second sprocket 5 are both in a horizontal state, the transition arc is eliminated, and the chain 6 is directly flattened, the structure is simple, and the span is further reduced.

[0023] A pedal 7 is installed between the chains 6 on both sides. Figure 5As shown, the chain 6 includes a link plate 61, a link pin 62 and a roller 63. Two link holes are processed on the link plate 61. The link plates 61 connected in sequence are rotatably connected by the link pin 62 passing through the link hole. The roller 63 is located between the two rows of link plates 61 connected by the link pin 62 and is rotatably connected to the link pin 62. A horizontal upper guide rail 8 is installed below the portion of the chain 6 located 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 located below the first sprocket 4 and the second sprocket 5. The roller 63 of the chain 6 rolls along the upper guide rail 8 or the lower guide rail 9 to prevent the chain 6 from sagging after being loaded, so that the movement of the chain 6 is more stable and reliable. The two ends of the upper guide rail 8 and the lower guide rail 9 are fixedly connected to the truss 1 respectively. The stairway structure also includes a guide rail support plate 10 fixedly connected to the side beam 13, and an upper supporting portion 101 for supporting the upper guide rail 8 and a lower supporting portion 102 for supporting the lower guide rail 9 are processed on the guide rail support plate 10. The middle section of the upper guide rail 8 is placed on the upper supporting portion 101, and the lower guide rail 9 is placed on the lower supporting portion 102, so that the upper guide rail 8 and the lower guide rail 9 are more stable. A horizontal short rail 21 is installed above the lower guide rail 9, and the chain 6 passes between the lower guide rail 9 and the short rail 21, which further improves the stability of the chain 6 operation, makes the pedal 7 move more smoothly, and improves the experience of pedestrians on the moving sidewalk.

[0024] The step circuit includes a connecting shaft 22, which connects the chain link pins 62 on both sides. The pedal 7 has a connecting plate 23, and the connecting plate 23 is processed with an arc-shaped groove. The groove is sleeved on the connecting shaft 22, so that the pedal 7 moves with the chain 6 more flexibly.

[0025] The ladder structure of the short-span horizontal moving walkway of the utility model changes the lower return part of the step loop into a horizontal structure, avoiding the problem that the span cannot be further reduced due to the excessively long transition arc. After the structure is simplified, the minimum span can be 7.5m, which meets the requirements of special projects. In addition, the bottom main chord beam of the truss is changed to a straight structure, and the design is optimized to match the changes in the step loop. The structure is simpler and the truss strength is more stable, meeting the needs of horizontal walkways with a span of less than 12m, thereby improving the coverage range of the product.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A short-span horizontal moving walkway structure, characterized in that: The sprocket wheel is annularly connected to the gear train of claim 1, wherein the sprocket wheel has a first end and a second end, the second end of the sprocket having a first end and a second end, and the sprocket has a first end. The sprocket has a first end and a second end. The sprocket has a first end and a second end. The sprocket has a first end and a second end. The sprocket has a first end and a second end. The sprocket has a first end and a second end. The sprocket has a first end and a second end.

2. The short-span horizontal moving walkway structure according to claim 1 is characterized in that: 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, and the rollers of the chain roll along the upper guide rail or the lower guide rail.

3. The short-span horizontal moving walkway structure according to claim 2 is characterized in that: The two ends of the upper guide rail and the lower guide rail are respectively fixedly connected to the truss.

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

5. The short-span horizontal moving walkway structure according to claim 2 is characterized in that: A horizontal short rail is arranged above the lower guide rail, and the chain passes between the lower guide rail and the short rail.

6. The short-span horizontal moving walkway structure according to claim 1, characterized in that: The step circuit comprises a connecting shaft, the connecting shaft connects the chain link pins on both sides, a connecting plate is arranged on the pedal, an arc-shaped groove is arranged on the connecting plate, and the groove is sleeved on the connecting shaft.

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