Handrail heating device for moving sidewalk or escalator

Abstract

The utility model relates to a hand strap heating device for a moving sidewalk or an escalator, and belongs to the technical field of moving sidewalks or escalators, and the hand strap heating device is arranged at the lower corner of the moving sidewalk or the escalator and suspended above a hand strap. The handrail heating device comprises a supporting frame fixedly connected to the inner side of the escalator apron and a heating rod fixed to the supporting frame. The handrail belt heating device is suspended above the handrail belt at the lower corner of the moving sidewalk or the escalator to heat the handrail belt, so that the situation that the moving sidewalk or the escalator cannot normally rotate due to stiffness or freezing of the handrail belt is avoided; an existing moving sidewalk or escalator does not need to be modified too much, and the handrail heating device is convenient to assemble, disassemble and maintain.

Description

Technical Field

[0001] The utility model relates to a handrail heating device for a moving walk or an escalator, belonging to the technical field of moving walks or escalators. Background Art

[0002] The existing handrails of moving walks or escalators are partially exposed for pedestrians to hold, and the other part is hidden inside the skirt panels. When a moving walk or an escalator is used outdoors, if the outdoor temperature is too low, the surface of the exposed handrail freezes, resulting in the handrail becoming stiff or slippery and unable to operate normally, and further causing the moving walk or the escalator to be unable to be used normally. Although the existing Chinese patent 201110454721.6 discloses an escalator and a handrail heating device, which includes a handrail bracket and a handrail covering the handrail bracket, and a heating device is provided on the handrail bracket. A groove is provided on the handrail bracket, and the heating device includes a heating tape and a heater connected to the heating tape, and the heating tape is arranged in the groove. It can prevent the situation that the escalator cannot rotate normally due to the stiffness or icing of the handrail. However, the heating device is arranged inside the handrail bracket, and a groove needs to be provided inside the handrail frame to accommodate the heating device, which is not conducive to the renovation of the existing escalator. Moreover, the handrail bracket is fixedly clamped with the handrail, and the installation, disassembly and maintenance processes are cumbersome. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a handrail heating device for a moving walk or an escalator to solve the above problems.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a handrail heating device for a moving walk or an escalator, the handrail heating device is arranged at the lower corner of the moving walk or the escalator and is suspended above the handrail, and the handrail heating device includes a support frame fixedly connected to the inner side of the escalator skirt and a heating rod fixed on the support frame.

[0005] Further, the support frame includes an L-shaped connecting piece fixedly connected to the escalator skirt and a protective cover fixed at the end of the L-shaped connecting piece, and the heating rod is arranged inside the protective cover.

[0006] Further, the protective cover is in a U-shaped structure and is arranged with the opening facing the handrail side.

[0007] Further, the support frame further includes a clamping piece for fixing the heating rod, the clamping piece includes a fixed end connected to the L-shaped connecting piece and a clamping end connected to the fixed end, and the clamping end is in a diamond structure and covers the outside of the heating rod.

[0008] Furthermore, the escalator apron is provided with a first waist-shaped hole arranged along the extending direction of the handrail, and the L-shaped connecting piece is fixedly connected to the first waist-shaped hole by means of bolts.

[0009] Furthermore, a second waist-shaped hole is arranged on the L-shaped connecting piece extending in the vertical direction.

[0010] Furthermore, the first waist-shaped hole is arranged on the C-profile of the escalator apron.

[0011] Furthermore, the handrail heating device also includes a controller electrically connected to the heating rod and a temperature detection element electrically connected to the controller, and the temperature detection element is used to detect the outdoor temperature.

[0012] The beneficial effect of the utility model is that the handrail heating device is suspended above the handrail at the lower corner of the moving walkway or escalator to heat the handrail, thereby avoiding the situation where the moving walkway or escalator cannot rotate normally due to stiffness or icing of the handrail, and there is no need to make excessive modifications to the existing moving walkway or escalator, making it easy to install, disassemble and maintain the handrail heating device.

[0013] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a handrail heating device for a moving walkway or escalator according to an embodiment of the present application;

[0015] Figure 2 for Figure 1 Partial cross-sectional view of the middle AA section. DETAILED DESCRIPTION

[0016] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed 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 the internal communication between two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, in the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium.

[0020] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. Throughout this specification, the schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0021] Please refer to Figures 1 to 2 The handrail heating device 20 for a moving walkway or escalator shown in one embodiment of the present application is arranged at the lower corner of the moving walkway or escalator and suspended above the handrail 10. The handrail heating device 20 includes a support frame fixedly connected to the inner side of the escalator apron 30 and a heating rod 23 fixed to the support frame. It should be noted that the lower corner of the moving walkway or escalator here refers to the position located at the bottom of the moving walkway or escalator and is used to arrange the tensioning structure for tensioning the handrail 10. This is the lowest point of the handrail 10 and the place where ice water gathers. There is a gap between the handrail 10 and the handrail frame. The handrail heating device 20 is arranged in this gap and can directly heat the handrail 10 with stable effect and high efficiency. Among them, the heating rod is a prior art and will not be described in detail here.

[0022] In one embodiment, the support frame includes an L-shaped connecting member 21 fixedly connected to the escalator skirt 30 and a protective cover 22 fixed to the end of the L-shaped connecting member 21. The heating rod 23 is disposed inside the protective cover 22. The protective cover 22 is made of heat-insulating material to solve the problem of poor heating effect caused by heat dissipation of the heating rod 23.

[0023] In one embodiment, the protective cover 22 is in a U-shaped structure and is arranged with the opening facing the handrail belt 10 side. The heat of the heating rod 23 is converged towards the handrail belt 10 direction through the U-shaped structure to improve the heating effect of the heating rod 23 and reduce heat loss.

[0024] In one embodiment, the support frame further includes a clamping member 24 for fixing the heating rod 23. The clamping member 24 includes a fixed end connected to the L-shaped connecting member 21 and a clamping end connected to the fixed end. The clamping end is in a diamond structure and covers the outside of the heating rod 23. By providing the clamping member 24 to fix the heating rod 23, it is convenient to adjust the position of the heating rod 23 inside the protective cover 22 so that it can be arranged close to the handrail belt 10 to improve the heating efficiency.

[0025] In one embodiment, a first waist-shaped hole is arranged on the escalator skirt 30 along the extending direction of the handrail belt 10. The L-shaped connecting member 21 is fixedly connected to the first waist-shaped hole by bolts. By adjusting the fixed position of the L-shaped connecting member 21 in the first waist-shaped hole, the heating rod 23 can be arranged at the lowest end of the lower corner to avoid the accumulation of ice and water here.

[0026] In one embodiment, a second waist-shaped hole is arranged on the L-shaped connecting member 21 along the vertical direction. By adjusting the fixed position of the bolt of the L-shaped connecting member 21 in the second waist-shaped hole, the heating rod 23 can be adjusted to the position closest to the handrail belt 10 while not affecting the movement of the handrail belt 10 to improve the heating efficiency.

[0027] In one embodiment, the first waist-shaped hole is arranged on the C-profile 31 of the escalator skirt 30. The C-profile 31 is a part of the escalator skirt 30 and is used to support other components. By opening the first waist-shaped hole on the C-profile 31, the handrail belt heating device 20 is fixedly installed on the C-profile 31 of the original component skirt of the moving walk or escalator, without adding new components, and the installation is convenient and simple, saving costs.

[0028] In one embodiment, the handrail belt heating device 20 further includes a controller electrically connected to the heating rod 23 and a temperature detection component electrically connected to the controller. The temperature detection component is used to detect the outdoor temperature. The temperature detection component is a temperature sensor. The temperature detection component feeds back the detected outdoor temperature to the controller, and the controller controls the heating rod 23 to provide different degrees of heating effects according to the outdoor temperature. This is prior art and will not be elaborated here.

[0029] The present application heats the handrail by suspending a handrail heating device above the handrail at the lower corner of a moving walkway or escalator, thereby avoiding the situation where the moving walkway or escalator cannot rotate normally due to stiffness or icing of the handrail. There is no need to make excessive modifications to the existing moving walkway or escalator, and the handrail heating device is easy to install, disassemble and maintain.

[0030] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A handrail heating device for a moving walkway or escalator, characterized in that: The handrail heating device is arranged at the lower corner of the moving walkway or the escalator and is suspended above the handrail. The handrail heating device includes a support frame fixedly connected to the inner side of the escalator apron and a heating rod fixed on the support frame.

2. The handrail heating device for a moving walkway or escalator according to claim 1, characterized in that: The support frame includes an L-shaped connector fixedly connected to the escalator apron and a protective cover fixed to the end of the L-shaped connector, and the heating rod is arranged in the protective cover.

3. The handrail heating device for a moving walkway or escalator according to claim 2, characterized in that: The protective cover is in a U-shaped structure and its opening is arranged toward one side of the handrail.

4. The handrail heating device for a moving walkway or escalator according to claim 3, characterized in that: The support frame also includes a clamping member for fixing the heating rod, and the clamping member includes a fixed end connected to the L-shaped connecting member and a clamping end connected to the fixed end. The clamping end has a diamond-shaped structure and covers the outside of the heating rod.

5. The handrail heating device for a moving walkway or escalator according to claim 2, characterized in that: The escalator apron is provided with a first waist-shaped hole arranged along the extending direction of the handrail belt, and the L-shaped connecting piece is fixedly connected to the first waist-shaped hole by means of bolts.

6. The handrail heating device for a moving walkway or escalator according to claim 5, characterized in that: A second waist-shaped hole is arranged on the L-shaped connecting piece extending in the vertical direction.

7. The handrail heating device for a moving walkway or escalator according to claim 5, characterized in that: The first waist-shaped hole is arranged on the C-shaped material of the escalator apron.

8. The handrail heating device for a moving walkway or escalator according to claim 1, characterized in that: The handrail heating device also includes a controller electrically connected to the heating rod and a temperature detection element electrically connected to the controller, and the temperature detection element is used to detect the outdoor temperature.

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