Downward-bending wear-resistant guide rail of escalator

Abstract

The utility model provides a downward bending wear-resistant guide rail of an escalator, which belongs to the technical field of mechanical transmission and comprises a main body, handrail side lugs are symmetrically arranged on two sides along the length direction of the main body, each handrail side lug comprises a first connecting strip and a second connecting strip, the first connecting strip is connected with the main body, and the second connecting strip is connected with the main body. The second connecting strip is arranged on one side, close to the main body, of the first connecting strip; the handrail side lugs comprise the first connecting strip and the second connecting strip which are equal to the main body in length, the second connecting strip is arranged below the first connecting strip, and the handrail belt is arranged above the first connecting strip, so that even if the distance between the handrail belt and the second connecting strip is increased at the radian section transition section of the downwards-bent handrail guide rail, the friction force is reduced; contact between the downward-bent guide rail and the handrail belt of the escalator is reduced, abrasion is reduced, the service life of the whole escalator is prolonged, the first connecting strip and the second connecting strip do not need to be formed through coil stock cold rolling, the forming difficulty is small, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, and particularly to a wear-resistant guide rail for the lower bend of an escalator. Background Art

[0002] At present, in the escalator manufacturing industry, the processing of the lower bend handrail guide rail is formed by cold rolling of coil materials. The cross-section of the profile is uniform and flat, and the overall wall thickness is unified, which guides the handrail belt of the escalator. The handrail belt moves under the guiding action of the lower bend handrail guide rail. As Figure 1 and Figure 2 shown, the running process of the escalator belt includes a horizontal section and an arc transition section. In actual use, the friction between the handrail belt and the lower bend guide rail is small under the action of gravity in the horizontal section of the lower bend handrail guide rail. However, in the arc transition section of the lower bend handrail guide rail, the ear 3 of the lower bend handrail guide rail is in close contact with the handrail belt, resulting in continuous friction, which significantly shortens the service life of the lower bend handrail guide rail and the handrail belt. Once worn to a certain extent, a large gap will be generated between the handrail belt and the lower bend handrail guide rail, affecting the reliability of the escalator and the safety of passengers.

[0003] Therefore, there is an urgent need for a lower bend handrail guide rail with less wear in the arc transition section of the escalator. Summary of the Utility Model

[0004] In view of this, the utility model reduces the friction between the handrail belt and the lower bend handrail guide rail through the handrail side ear, prolongs the service life, and reduces the manufacturing cost.

[0005] The technical solution of the utility model is realized as follows: A wear-resistant guide rail for the lower bend of an escalator includes a main body, and handrail side ears are symmetrically arranged on both sides along the length direction of the main body. The handrail side ear includes a first connection strip and a second connection strip. The first connection strip is connected to the main body, and the second connection strip is arranged on the side of the first connection strip close to the main body.

[0006] On the basis of the above technical solution, preferably, the two handrail side ears are in the same plane.

[0007] On the basis of the above technical solution, preferably, the first connection strip and the second connection strip are connected by welding or bolt fixing.

[0008] On the basis of the above technical solution, preferably, an arc is arranged on the side of the second connection strip away from the first connection strip.

[0009] On the basis of the above technical solution, preferably, the main body includes a bottom plate and two side plates. One side plate is arranged on one side of the bottom plate along the length direction of the bottom plate, and the other side plate is arranged on the other side of the bottom plate along the length of the bottom plate.

[0010] Based on the above technical solutions, preferably, the side plate and the bottom plate are perpendicularly arranged, the first connecting strip is perpendicularly arranged with the side plate, the bottom plate and the side plate are welded or integrally formed, and the side plate and the first connecting strip are welded or integrally formed.

[0011] Based on the above technical solutions, preferably, a plurality of fixing holes are provided on the bottom plate.

[0012] The wear-resistant guide rail for the downward bend of the escalator of the present utility model has the following beneficial effects compared with the prior art:

[0013] The armrest side ears are the first connecting strip and the second connecting strip with the same length as the main body. The second connecting strip is below the first connecting strip, and the handrail belt is above the first connecting strip. Even when the distance between the handrail belt and the second connecting strip increases in the arc transition section of the downward bend handrail guide rail, the friction force decreases, the contact between the downward bend guide rail of the escalator and the handrail belt decreases, the wear decreases, and the service life of the entire escalator is extended. Secondly, the first connecting strip and the second connecting strip do not need to be formed by cold rolling of coiled materials, the forming difficulty is small, and the manufacturing cost is reduced. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a three-dimensional view of an existing escalator guide rail of the present utility model;

[0016] Figure 2 For the present utility model Figure 1 is a partial enlarged view;

[0017] Figure 3 It is a three-dimensional view of a wear-resistant guide rail for the downward bend of the escalator of the present utility model;

[0018] Figure 4 For the present utility model Figure 3 is a partial enlarged view. Detailed Embodiment

[0019] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] As Figure 3 and 4 shown, a wear-resistant guide rail for the downward bend of an escalator includes a main body 1. On both sides along the length direction of the main body 1, armrest side ears 2 are symmetrically arranged. The armrest side ears 2 include a first connecting strip 21 and a second connecting strip 22. The first connecting strip 21 is connected to the main body 1, and the second connecting strip 22 is arranged on the side of the first connecting strip 21 close to the main body 1. The armrest side ears 2 are the first connecting strip 21 and the second connecting strip 22 that are equal in length to the main body 1. Among them, the second connecting strip 22 is below the first connecting strip 21, and the handrail belt is above the first connecting strip 21. Even when the downward bend of the handrail guide rail is in the arc section transition section, the distance between the handrail belt and the second connecting strip 22 increases, the friction force decreases, the contact between the downward bend guide rail of the escalator and the handrail belt decreases, the wear decreases, and the service life of the entire escalator is extended. Secondly, the first connecting strip 21 and the second connecting strip 22 do not need to be formed by cold rolling of coiled materials, the forming difficulty is small, and the manufacturing cost is reduced.

[0021] The two armrest side ears 2 are in the same plane and jointly play a supporting role for the handrail belt. The supporting force of the armrest side ears 2 on the handrail belt is more balanced, and the supporting effect is better.

[0022] The first connecting strip 21 and the second connecting strip 22 are connected by welding or bolt fixing. Among them, there are various connection methods for the first connecting strip 21 and the second connecting strip 22. At this time, only the welding or bolt fixing methods are given. It can also be common methods such as bonding or plugging, as long as the first connecting strip 21 and the second connecting strip 22 can be firmly fixed together.

[0023] An arc is provided on the side of the second connecting strip 22 away from the first connecting strip 21. By providing the arc, it is avoided that the side corner of the second connecting strip 22 facing the handrail belt is relatively sharp, which may cut or damage the handrail belt.

[0024] The main body 1 includes a bottom plate 11 and two side plates 12. One side plate 12 is arranged on one side of the bottom plate 11 along the length direction of the bottom plate 11, and the other side plate 12 is arranged on the other side of the bottom plate 11 along the length of the bottom plate 11. The main body 1 is a conventional U-shaped structure. Similarly, it can also be in various other forms.

[0025] The side plate 12 and the bottom plate 11 are arranged perpendicular to each other. The first connecting strip 21 and the side plate 12 are arranged perpendicular to each other. The bottom plate 11 and the side plate 12 are welded or integrally formed, and the side plate 12 and the first connecting strip 21 are welded or integrally formed.

[0026] A plurality of fixing holes 111 are provided on the bottom plate 11. The fixing holes 111 are used to fix the bottom plate 11, and thus the entire device is fixed on the escalator.

[0027] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An escalator downward curved wear-resistant guide rail, comprising a main body (1), characterized in that: Armrest side ears (2) are symmetrically arranged on both sides along the length direction of the main body (1), and the armrest side ears (2) include a first connecting strip (21) and a second connecting strip (22), the first connecting strip (21) is connected to the main body (1), and the second connecting strip (22) is arranged on a side of the first connecting strip (21) close to the main body (1).

2. The downward curved wear-resistant guide rail for escalators according to claim 1, characterized in that: The two armrest side ears (2) are in the same plane.

3. The downward curved wear-resistant guide rail for escalator according to claim 1, characterized in that: The first connecting strip (21) and the second connecting strip (22) are connected by welding or bolting.

4. The downward curved wear-resistant guide rail for escalator according to claim 2, characterized in that: A circular arc is provided on a side of the second connecting strip (22) away from the first connecting strip (21).

5. The downward curved wear-resistant guide rail for escalator according to claim 1, characterized in that: The main body (1) comprises a bottom plate (11) and two side plates (12), wherein one side plate (12) is arranged on one side of the bottom plate (11) along the length direction of the bottom plate (11), and the other side plate (12) is arranged on the other side of the bottom plate (11) along the length of the bottom plate (11).

6. The downward curved wear-resistant guide rail for escalator according to claim 5, characterized in that: The side plate (12) and the bottom plate (11) are arranged perpendicularly to each other, the first connecting strip (21) and the side plate (12) are arranged perpendicularly to each other, the bottom plate (11) and the side plate (12) are welded or integrally formed, and the side plate (12) and the first connecting strip (21) are welded or integrally formed.

7. The downward curved wear-resistant guide rail for escalator according to claim 5, characterized in that: A plurality of fixing holes (111) are provided on the bottom plate (11).

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