Novel handrail driving device of escalator

Abstract

The utility model provides a novel handrail driving device of an escalator. The novel handrail driving device comprises a handrail belt and a main driving assembly arranged in the escalator. The handrail belt is arranged on glass arranged in the middle of the handrail; a first driven driving assembly and a second driven driving assembly are further arranged in the escalator. The main driving assembly is in transmission connection with the first driven driving assembly; the first driven driving assembly is in transmission connection with the second driven driving assembly; the second driven driving assembly drives the hand strap to operate; on the premise that the structure of the main driving mechanism is not changed, operation of the hand strap is achieved by arranging the first driven driving assembly and the second driven driving assembly, the construction difficulty and the construction technology are reduced, the working efficiency is effectively improved, the labor cost is reduced, and the working efficiency is improved. And an escalator with offset glass is successfully transformed into an escalator with middle glass.

Description

Technical Field

[0001] The utility model relates to the technical field of escalators, in particular to a novel handrail driving device for escalators. Background Art

[0002] Existing escalators needed to be retrofitted to adapt to the new environment. For those retaining the truss structure, the principle was to minimize structural changes. Offset-glass escalators faced a shortage of spare parts, requiring them to adapt to modern design trends and be converted to center-glass escalators. However, the main drive mechanism, which served as the power source, needed to remain structurally unchanged. Since the existing main drive mechanism could only power escalators with offset glass, but not those with center glass, a new escalator handrail drive device was needed to address these technical issues. Utility Model Content

[0003] The purpose of the utility model is to provide a new type of handrail drive device for an escalator. Under the premise of ensuring that the structure of the main drive mechanism remains unchanged, the operation of the handrail belt is realized by setting a first driven drive assembly and a second driven drive assembly, which reduces the construction difficulty and construction process, effectively improves work efficiency, reduces labor costs, and successfully transforms an escalator with offset glass into an escalator with central glass.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a new type of handrail drive device for an escalator, including a handrail belt and a main drive assembly built into the escalator; wherein: the handrail belt is arranged on the glass placed in the handrail; the escalator is also provided with a first driven drive assembly and a second driven drive assembly respectively; the main drive assembly is transmission-connected to the first driven drive assembly; the first driven drive assembly is transmission-connected to the second driven drive assembly; and the second driven drive assembly drives the handrail belt to operate.

[0005] As a further improvement of the technical solution of the present utility model, the main drive assembly includes a main drive wheel and a main drive chain; one end of the main drive chain is transmission-connected to the main drive wheel, and the other end is transmission-connected to the first driven drive assembly.

[0006] As a further improvement of the technical solution of the present invention, the first driven drive assembly includes a first driven main wheel, a first driven secondary wheel, a first driven chain and a first driven mounting plate; the first driven mounting plate is fixedly mounted on the inner wall of the escalator; the first driven main wheel and the first driven secondary wheel are both rotatably mounted on the first driven mounting plate through a first rotating shaft; the first driven main wheel is transmission-connected to the main drive chain; one end of the first driven chain is transmission-connected to the first driven secondary wheel, and the other end is transmission-connected to the second driven drive assembly.

[0007] As a further improvement of the technical solution of the present invention, the second driven drive assembly includes a second driven main wheel, a second driven secondary wheel, a second driven belt and a second driven mounting plate; the second driven mounting plate is fixedly mounted on the inner wall of the escalator; the second driven main wheel is rotatably mounted on the first driven mounting plate through a second driven main shaft; the second driven secondary wheel is rotatably mounted on the second driven mounting plate through a second driven secondary shaft; one end of the second driven main wheel is transmission-connected to the first driven chain, and the other end is transmission-connected to one end of the second driven belt; the other end of the second driven belt is transmission-connected to the second driven secondary wheel; the second driven main wheel and the second driven secondary wheel are respectively abutted against the transmission groove of the handrail belt, and one side of the second driven belt is tightly attached to the transmission groove.

[0008] As a further improvement to the technical solution of the present invention, it also includes a pre-tightening assembly; the pre-tightening assembly includes a pre-tightening adjustment plate, a pre-tightening adjustment bolt, a pre-tightening mounting plate, a pre-tightening spring, a pre-tightening nut, a pre-tightening screw and a pre-tightening mounting arm; the second driven secondary wheel is rotatably mounted between the pre-tightening adjustment plate and the pre-tightening mounting arm through the second driven secondary shaft; the pre-tightening adjustment plate is adjustably mounted on the second driven mounting plate through the pre-tightening adjustment bolt; the pre-tightening mounting plate is vertically mounted on the second driven mounting plate; one end of the pre-tightening screw is connected to the pre-tightening mounting arm, and the other end passes through the pre-tightening mounting plate and the pre-tightening spring in sequence; one end of the pre-tightening spring abuts against the pre-tightening mounting plate, and the other end is positioned on the pre-tightening screw through the pre-tightening nut and the gasket.

[0009] As a further improvement to the technical solution of the present invention, an adjustment slot is provided on the preload adjustment plate; the preload adjustment bolt passes through the adjustment slot to adjustably mount the preload adjustment plate on the second driven mounting plate.

[0010] As a further improvement of the technical solution of the present invention, the handrail belt is mounted on the escalator in an arc through a handrail guide rail; one end of the handrail guide rail is fixed to the first driven mounting plate, and the other end is fixed to the second driven mounting plate.

[0011] Beneficial effects of the utility model:

[0012] Under the premise of ensuring that the structure of the main drive mechanism remains unchanged, the utility model realizes the operation of the handrail belt by arranging the first driven drive assembly and the second driven drive assembly, which reduces the construction difficulty and construction process, effectively improves the work efficiency, reduces the labor cost, and successfully transforms the escalator with offset glass into the escalator with center glass.

[0013] When it is necessary to adjust the tension of the second driven belt between the second driven main wheel and the second driven auxiliary wheel so that the second driven main wheel and the second driven auxiliary wheel are tightly attached to the handrail belt, first loosen the preload adjustment bolt, adjust the installation position of the preload adjustment plate on the second driven mounting plate, and then compress or stretch the preload spring by screwing the preload nut on the preload screw, thereby adjusting the setting position of the preload mounting arm, and then adjusting the position of the second driven auxiliary wheel against the handrail belt, and finally adjusting the tension of the second driven belt, so that the second driven belt can better fit the transmission groove of the handrail belt, so as to adapt to different types of handrail belts and ensure that the handrail belt can operate stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a new type of handrail driving device for an escalator according to an embodiment of the utility model;

[0016] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0017] Figure 3 This is a schematic diagram of the structure of the built-in glass handrail in an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the offset glass handrail structure in the prior art;

[0019] Figure 5 Schematic diagram of the handrail drive mechanism in the prior art.

[0020] In the accompanying drawings: 1-handrail belt; 2-main drive assembly; 3-first driven drive assembly; 4-second driven drive assembly; 5-pretightening assembly; 6-glass; 11-transmission groove; 12-handrail guide rail; 21-main drive wheel; 22-main drive chain; 31-first driven main wheel; 32-first driven secondary wheel; 33-first driven chain; 34-first driven mounting plate; 35-first rotating shaft; 41-second driven main wheel; 42-second driven secondary wheel; 43-second driven belt; 44-second driven mounting plate; 45-second driven secondary shaft; 46-second driven main shaft; 51-pretightening adjustment plate; 52-pretightening adjustment bolt; 53-pretightening mounting plate; 54-pretightening spring; 55-pretightening nut; 56-pretightening screw; 57-pretightening mounting arm; 58-gasket; 511-adjustment slot. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In this utility model, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, "connection" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0024] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one such feature. Furthermore, the technical solutions of various embodiments may be combined with each other, but only on the basis that they can be implemented by a person of ordinary skill in the art. If the combination of technical solutions contradicts or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] The following is combined with Figure 1-3 The utility model is described in further detail.

[0026] like Figure 1 and Figure 3As shown, a new handrail drive device for an escalator includes a handrail belt 1 and a main drive assembly 2 built into the escalator. The handrail belt 1 is arranged on the glass 6 placed in the handrail. The escalator is also provided with a first driven drive assembly 3 and a second driven drive assembly 4. The main drive assembly 2 is in transmission connection with the first driven drive assembly 3. The first driven drive assembly 3 is in transmission connection with the second driven drive assembly 4. The second driven drive assembly 4 drives the handrail belt 1 to operate. While ensuring that the structure of the main drive mechanism remains unchanged, the present invention realizes the operation of the handrail belt 1 by providing the first driven drive assembly 3 and the second driven drive assembly 4. This reduces the construction difficulty and process, effectively improves work efficiency, reduces labor costs, and successfully transforms an escalator with offset glass into one with center glass.

[0027] Specifically, in this embodiment, the main drive assembly 2 includes a main drive wheel 21 and a main drive chain 22; one end of the main drive chain 22 is transmission-connected to the main drive wheel 21, and the other end is transmission-connected to the first driven drive assembly 3.

[0028] Specifically, in this embodiment, the first driven drive assembly 3 includes a first driven main wheel 31, a first driven secondary wheel 32, a first driven chain 33 and a first driven mounting plate 34; the first driven mounting plate 34 is fixedly mounted on the inner wall of the escalator; the first driven main wheel 31 and the first driven secondary wheel 32 are both rotatably mounted on the first driven mounting plate 34 through a first rotating shaft 35; the first driven main wheel 31 is transmission-connected to the main drive chain 22; one end of the first driven chain 33 is transmission-connected to the first driven secondary wheel 32, and the other end is transmission-connected to the second driven drive assembly 4.

[0029] Specifically, in this embodiment, the second driven drive assembly 4 includes a second driven main wheel 41, a second driven secondary wheel 42, a second driven belt 43 and a second driven mounting plate 44; the second driven mounting plate 44 is fixedly mounted on the inner wall of the escalator; the second driven main wheel 41 is rotatably mounted on the first driven mounting plate 34 through a second driven main shaft 46; the second driven secondary wheel 42 is rotatably mounted on the second driven mounting plate 44 through a second driven secondary shaft 45; one end of the second driven main wheel 41 is transmission-connected to the first driven chain 33, and the other end is transmission-connected to one end of the second driven belt 43; the other end of the second driven belt 43 is transmission-connected to the second driven secondary wheel 42; the second driven main wheel 41 and the second driven secondary wheel 42 are respectively abutted against the transmission groove 11 of the handrail belt 1, and one side of the second driven belt 43 is tightly attached to the transmission groove 11.

[0030] It should be noted that when the handrail belt 1 needs to operate normally, the main driving wheel 21 works and drives the first driven main wheel 31 to rotate through the main driving chain 22. After the first driven main wheel 31 rotates, it drives the coaxially arranged first driven secondary wheel 32 to rotate, and the first driven secondary wheel 32 transmits power to the second driven main wheel 41 through the first driven chain 33. After the second driven main wheel 41 obtains power, it drives the second driven secondary wheel 42 through the second driven belt 43; since the first driven secondary wheel 32 and the second driven main wheel 41 are in contact with the handrail belt 1, and a large part of the second driven belt 43 is attached to the transmission groove 11 of the handrail belt 1, the drive of the handrail belt 1 is realized, so that the handrail belt 1 can operate stably.

[0031] Specifically, this embodiment also includes a pre-tightening assembly 5; the pre-tightening assembly 5 includes a pre-tightening adjustment plate 51, a pre-tightening adjustment bolt 52, a pre-tightening mounting plate 53, a pre-tightening spring 54, a pre-tightening nut 55, a pre-tightening screw 56 and a pre-tightening mounting arm 57; the second driven secondary wheel 42 is rotatably mounted between the pre-tightening adjustment plate 51 and the pre-tightening mounting arm 57 through the second driven secondary shaft 45; the pre-tightening adjustment plate 51 is adjustably mounted on the second driven mounting plate 44 through the pre-tightening adjustment bolt 52; the pre-tightening mounting plate 53 is vertically mounted on the second driven mounting plate 44; one end of the pre-tightening screw 56 is connected to the pre-tightening mounting arm 57, and the other end passes through the pre-tightening mounting plate 53 and the pre-tightening spring 54 in sequence; one end of the pre-tightening spring 54 abuts against the pre-tightening mounting plate 53, and the other end is positioned on the pre-tightening screw 56 through the pre-tightening nut 55 and the gasket 58. It should be noted that, when it is necessary to adjust the tension of the second driven belt 43 between the second driven main wheel 41 and the second driven auxiliary wheel 42 so that the second driven main wheel 41 and the second driven auxiliary wheel 42 are tightly attached to the handrail belt 1, first loosen the preload adjustment bolt 52, adjust the installation position of the preload adjustment plate 51 on the second driven mounting plate 44, and then screw the preload nut 55 on the preload screw 56 to compress or stretch the preload spring 54, thereby adjusting the setting position of the preload mounting arm 57, and then adjust the position of the second driven auxiliary wheel 42 against the handrail belt 1, and finally adjust the tension of the second driven belt 43, so that the second driven belt 43 can better fit on the transmission groove 11 of the handrail belt 1 to adapt to different types of handrail belts 1, thereby ensuring that the handrail belt 1 can operate stably.

[0032] Specifically, in this embodiment, the preload adjustment plate 51 is provided with an adjustment slot 511; the preload adjustment bolt 52 passes through the adjustment slot 511, thereby adjustably mounting the preload adjustment plate 51 on the second driven mounting plate 44. It should be noted that the provision of the adjustment slot 511 facilitates adjustment of the mounting position of the preload adjustment plate 51, and thus the position of the second driven pulley 42, to accommodate different types of handrails 1, further improving the efficiency of retrofitting old elevators.

[0033] Specifically, in this embodiment, the handrail belt 1 is mounted on the escalator in an arc shape via a handrail guide rail 12; one end of the handrail guide rail 12 is fixed to the first driven mounting plate 34, and the other end is fixed to the second driven mounting plate 44. It should be noted that a portion of the handrail belt 1 forms an arc through the handrail guide rail 12. This arc allows the handrail belt 1 to better fit with the second driven belt 43, increasing friction between the two and further improving the transmission efficiency between the second driven belt 43 and the handrail belt 1.

[0034] The above is a detailed introduction to the technical solutions provided by the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A novel handrail drive device for an escalator, comprising a handrail belt and a main drive assembly built into the escalator; characterized in that: The handrail is arranged on the glass in the handrail; a first driven drive assembly and a second driven drive assembly are respectively provided inside the escalator; the main drive assembly is transmission-connected to the first driven drive assembly; the first driven drive assembly is transmission-connected to the second driven drive assembly; and the second driven drive assembly drives the handrail to operate.

2. The novel escalator handrail driving device according to claim 1, characterized in that: The main drive assembly includes a main drive wheel and a main drive chain; one end of the main drive chain is transmission-connected to the main drive wheel, and the other end is transmission-connected to the first driven drive assembly.

3. The novel escalator handrail driving device according to claim 2, characterized in that: The first driven drive assembly includes a first driven main wheel, a first driven secondary wheel, a first driven chain and a first driven mounting plate; the first driven mounting plate is fixedly mounted on the inner wall of the escalator; the first driven main wheel and the first driven secondary wheel are both rotatably mounted on the first driven mounting plate through a first rotating shaft; the first driven main wheel is transmission-connected to the main drive chain; one end of the first driven chain is transmission-connected to the first driven secondary wheel, and the other end is transmission-connected to the second driven drive assembly.

4. The novel escalator handrail driving device according to claim 3, characterized in that: The second driven drive assembly includes a second driven main wheel, a second driven secondary wheel, a second driven belt and a second driven mounting plate; the second driven mounting plate is fixedly mounted on the inner wall of the escalator; the second driven main wheel is rotatably mounted on the first driven mounting plate through a second driven main shaft; the second driven secondary wheel is rotatably mounted on the second driven mounting plate through a second driven secondary shaft; one end of the second driven main wheel is transmission-connected to the first driven chain, and the other end is transmission-connected to one end of the second driven belt; the other end of the second driven belt is transmission-connected to the second driven secondary wheel; the second driven main wheel and the second driven secondary wheel are respectively abutted against the transmission groove of the handrail belt, and one side of the second driven belt is tightly attached to the transmission groove.

5. The novel escalator handrail driving device according to claim 4, characterized in that: It also includes a pre-tightening assembly; the pre-tightening assembly includes a pre-tightening adjustment plate, a pre-tightening adjustment bolt, a pre-tightening mounting plate, a pre-tightening spring, a pre-tightening nut, a pre-tightening screw and a pre-tightening mounting arm; the second driven secondary wheel is rotatably mounted between the pre-tightening adjustment plate and the pre-tightening mounting arm through the second driven secondary shaft; the pre-tightening adjustment plate is adjustably mounted on the second driven mounting plate through the pre-tightening adjustment bolt; the pre-tightening mounting plate is vertically mounted on the second driven mounting plate; one end of the pre-tightening screw is connected to the pre-tightening mounting arm, and the other end passes through the pre-tightening mounting plate and the pre-tightening spring in sequence; one end of the pre-tightening spring abuts against the pre-tightening mounting plate, and the other end is positioned on the pre-tightening screw through the pre-tightening nut and the gasket.

6. The novel escalator handrail driving device according to claim 5, characterized in that: An adjustment slot is provided on the preload adjustment plate; the preload adjustment bolt passes through the adjustment slot to adjustably mount the preload adjustment plate on the second driven mounting plate.

7. The novel escalator handrail driving device according to claim 4, characterized in that: The handrail belt is mounted on the escalator in an arc shape through a handrail guide rail; one end of the handrail guide rail is fixed on the first driven mounting plate, and the other end is fixed on the second driven mounting plate.

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