Escalator wear-resistant handrail belt structure

Abstract

The utility model discloses a kind of escalator wear-resistant handrail belt structures, including rubber outer layer, the inside of rubber outer layer is provided with structure reinforcement layer, the inside of structure reinforcement layer is provided with heat dissipation layer, the inside of heat dissipation layer is provided with wear layer;The inside of structure reinforcement layer is respectively pre-buried with side bar and central bar along length direction, side bar is set in the inside of the top, bottom and side of structure reinforcement layer corresponding two sides curved position, central bar is set in the inside of structure reinforcement layer central flat position, and central bar is in horizontal direction Wave shape. By side bar, ensure that the overall structure has certain tensile strength, by setting wave-shaped central bar, there is elongation trend when handrail belt turns 180 degrees, reduce the pressure and friction force between wear layer and double-row driving chain, reduce wear, while heat dissipation layer improves heat conduction heat dissipation effect, by cooling to reduce the effect of wear, the purpose of improving wear resistance, prolonging service life is realized.

Description

Technical Field

[0001] This utility model relates to the field of handrail technology, specifically to a wear-resistant handrail structure for escalators. Background Technology

[0002] The escalator handrail is an important component of escalators. It is a continuous, uninterrupted rubber belt, usually made of rubber or new polymer materials, containing steel wires to enhance tensile strength. During installation and operation on the escalator, the handrail is tensioned by a pressure pulley and power is transmitted through a double-row drive chain on the drive shaft, ensuring its operation in sync with the steps, with a speed synchronized with or slightly faster than the steps.

[0003] In most existing handrails, the internal steel wires are located inside the central flat section, while the curved sections on both sides are not. This causes the tension generated by the internal steel wires to be concentrated in the center. When the handrail reaches the top or bottom of the escalator, it makes a 180-degree turn. The tension in the central steel wire at this point creates significant pressure between the handrail and the internal double-row drive chain. Since the turning radius of the double-row drive chain is smaller than that of the handrail, relative displacement occurs. Combined with the high pressure at this point, this increases wear on the handrail when it reaches the top or bottom of the escalator. As the internal wear-resistant layer is continuously worn down, its thickness decreases or it is even damaged, leading to a vicious cycle that further accelerates the wear rate and affects the overall service life of the handrail. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wear-resistant handrail structure for escalators, which aims to improve wear resistance and extend service life.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An escalator wear-resistant handrail structure includes a rubber outer layer, a structural reinforcement layer disposed on the inner side of the rubber outer layer, a heat dissipation layer disposed on the inner side of the structural reinforcement layer, and a wear-resistant layer disposed on the inner side of the heat dissipation layer.

[0007] The interior of each structural reinforcement layer is pre-embedded with side tie bars and central tie bars along the length direction. The side tie bars are located inside the top, bottom and sides of the corresponding curved parts on both sides of the structural reinforcement layer. The central tie bars are located inside the flat part in the center of the structural reinforcement layer and are wavy in the horizontal direction.

[0008] The heat dissipation layer is embedded inside the structural reinforcement layer, and the two sides of the heat dissipation layer extend to the position close to the edge of the curved part on both sides of the structural reinforcement layer. The two sides of the wear-resistant layer partially wrap around the edge of the curved part on both sides of the structural reinforcement layer.

[0009] Preferably, both the outer rubber layer and the structural reinforcement layer are rubber layers, and the density of the structural reinforcement layer is not less than the density of the outer rubber layer.

[0010] Preferably, the heat dissipation layer is an aluminum foil layer, and through holes are uniformly arranged on the heat dissipation layer.

[0011] Preferably, the wear-resistant layer is a canvas layer.

[0012] Preferably, both the central tie and the side tie are made of thin steel wire.

[0013] Preferably, the vertical distance between the crest and trough corresponding to the central tie rod does not exceed its own diameter.

[0014] Preferably, the central tie rod has multiple parallel members.

[0015] Preferably, the central tie rod and the side tie rods have the same diameter, which is 1.0-3.0 mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention ensures the overall structure has a certain tensile strength by setting side braces that do not have elasticity. By setting a wavy central brace, the central brace tends to elongate when the handrail belt turns 180 degrees, reducing the tension and decreasing the pressure and friction between the wear-resistant layer and the double-row drive chain, thus reducing wear. At the same time, the heat dissipation layer improves the heat conduction and heat dissipation effect, accelerating the heat dissipation from the friction point to the surrounding area, thereby reducing wear through cooling. This achieves the purpose of improving wear resistance and extending service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention.

[0020] In the diagram: 1. Rubber outer layer; 2. Structural reinforcement layer; 3. Heat dissipation layer; 31. Through hole; 4. Wear-resistant layer; 5. Side tie; 6. Central tie. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-2 As shown, this utility model provides a technical solution: a wear-resistant handrail belt structure for escalators, including a rubber outer layer 1, a structural reinforcement layer 2 disposed on the inner side of the rubber outer layer 1, both the rubber outer layer 1 and the structural reinforcement layer 2 are rubber layers, and the density of the structural reinforcement layer 2 is not less than the density of the rubber outer layer 1, a heat dissipation layer 3 disposed on the inner side of the structural reinforcement layer 2, the heat dissipation layer 3 is an aluminum foil layer, and through holes 31 are uniformly disposed on the heat dissipation layer 3, a wear-resistant layer 4 disposed on the inner side of the heat dissipation layer 3, the wear-resistant layer 4 is a canvas layer, the rubber outer layer 1 and the structural reinforcement layer 2 are heat-fused together, and the structural reinforcement layer 2, the heat dissipation layer 3 and the wear-resistant layer 4 are bonded together;

[0023] The interior of the structural reinforcement layer 2 is pre-embedded with side tie rods 5 and central tie rods 6 along the length direction. The side tie rods 5 are set inside the top, bottom and sides of the corresponding curved parts on both sides of the structural reinforcement layer 2. The central tie rods 6 are set inside the flat part in the center of the structural reinforcement layer 2. The central tie rods 6 are horizontally wavy. Both the central tie rods 6 and the side tie rods 5 are thin steel wires. The vertical distance between the crest and trough of the central tie rod 6 does not exceed its own diameter. There are multiple central tie rods 6 and they are parallel to each other. The diameters of the central tie rods 6 and the side tie rods 5 are equal and are 1.0-3.0 mm.

[0024] The heat dissipation layer 3 is embedded inside the structural reinforcement layer 2, and the two sides of the heat dissipation layer 3 extend to the position close to the edge of the curved part on both sides of the structural reinforcement layer 2. The two sides of the wear-resistant layer 4 partially wrap around the edge of the curved part on both sides of the structural reinforcement layer 2.

[0025] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant handrail structure for escalators, comprising a rubber outer layer (1), characterized in that: The outer rubber layer (1) has a structural reinforcement layer (2) on its inner side, a heat dissipation layer (3) on its inner side, and a wear-resistant layer (4) on its inner side. The interior of the structural reinforcement layer (2) is pre-embedded with side tie bars (5) and central tie bars (6) along the length direction. The side tie bars (5) are set inside the top, bottom and sides of the curved parts on both sides of the structural reinforcement layer (2). The central tie bars (6) are set inside the flat part in the center of the structural reinforcement layer (2) and are wavy in the horizontal direction. The heat dissipation layer (3) is embedded inside the structural reinforcement layer (2), and the two sides of the heat dissipation layer (3) extend to the position close to the edge of the curved part on both sides of the structural reinforcement layer (2). The two sides of the wear-resistant layer (4) partially wrap around the edge of the curved part on both sides of the structural reinforcement layer (2).

2. The escalator wear-resistant handrail structure according to claim 1, characterized in that: Both the outer rubber layer (1) and the structural reinforcement layer (2) are rubber layers, and the density of the structural reinforcement layer (2) is not less than the density of the outer rubber layer (1).

3. The escalator wear-resistant handrail structure according to claim 1, characterized in that: The heat dissipation layer (3) is an aluminum foil layer, and through holes (31) are uniformly arranged on the heat dissipation layer (3).

4. The escalator wear-resistant handrail structure according to claim 1, characterized in that: The wear-resistant layer (4) is a canvas layer.

5. The escalator wear-resistant handrail structure according to claim 1, characterized in that: Both the central tie rod (6) and the side tie rod (5) are made of thin steel wire.

6. The escalator wear-resistant handrail structure according to claim 1, characterized in that: The vertical distance between the peaks and troughs of the central brace (6) does not exceed its own diameter.

7. The escalator wear-resistant handrail structure according to claim 1, characterized in that: The central bracing (6) consists of multiple parallel strands.

8. The escalator wear-resistant handrail structure according to claim 1, characterized in that: The central tie (6) and the side tie (5) have the same diameter, which is 1.0-3.0 mm.

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