Energy-saving control device for escalator

Abstract

The utility model provides an energy-saving control device for an escalator, which relates to the technical field of escalators and comprises a truss, steps are in chain transmission on the truss, apron boards are fixed on the surface of the truss and positioned on two sides of the steps, guardrails are fixedly connected to the surfaces of the apron boards, and the guardrails are fixedly connected to the surface of the truss. When a counter and a photoelectric sensor are damaged and need to be maintained, a lead screw is twisted to rotate, a movable plate is made to move upwards, a pressing plate and a limiting frame are driven to move upwards through movement of the movable plate, movement limitation of the counter at the position of a mounting groove plate is relieved, and the counter and the photoelectric sensor can be maintained conveniently. And the movement limitation of the photoelectric sensor and the mounting rack on the apron board is removed, and then the counter, the photoelectric sensor and the mounting rack can be easily detached from the apron board, so that the operation is simple and rapid, and the maintenance difficulty of the counter and the photoelectric sensor is reduced.

Description

Technical Field

[0001] This utility model relates to the field of escalator technology, and in particular to an energy-saving control device for escalators. Background Technology

[0002] An escalator is an electrically driven device composed of a special chain conveyor and a special belt conveyor. It is a fixed, continuous conveying machine that transports passengers up or down at different floors of a building through a cyclical escalator system.

[0003] However, in the existing technology, some existing escalators reduce the running speed of the steps when no one is using them in order to save energy. The controller on the escalator usually relies on pressure sensors installed in the steps to determine whether someone is using it. Since the pressure sensors are usually located inside the steps, it is inconvenient to disassemble and repair them when they are damaged, which makes the repair difficult. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies: the controller on an escalator generally relies on pressure sensors installed in the steps to determine whether someone is using it. Since the pressure sensors are usually located inside the steps, it is inconvenient to disassemble and repair them when they are damaged, resulting in a high level of maintenance difficulty.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an energy-saving control device for escalators, comprising a truss, wherein steps are chain-driven on the truss, and skirts are fixed on both sides of the steps on the surface of the truss. Guardrails are fixedly connected to the surface of the skirts, and handrails are cyclically mounted on the skirts and guardrails. A controller is fixed to the upper surface of the truss, and mounting slots are fixed to the upper and lower surfaces of the skirts. A counter is engaged with the empty slot of the mounting slot, and a photoelectric sensor is electrically connected to one side of the counter. The sensor, including both the photoelectric sensor and the counter, is electrically connected to the controller. A mounting bracket is fixedly installed on the surface of the photoelectric sensor, and limit grooves are formed on both the left and right sides of the mounting bracket. A lead screw is rotatably installed on the surface of the skirt plate above the mounting groove plate, and a movable plate is threadedly connected to the surface of the lead screw. The movable plate is slidably connected to the surface of the skirt plate. Pressing plates are fixed on both sides of the lower end of the movable plate, and limit brackets are fixed on both the left and right sides of the upper end of the movable plate. The protrusions at the upper ends of the limit brackets engage with the limit grooves.

[0006] In a preferred embodiment, the length of the distance between the two limiting frames is consistent with the width of the mounting frame itself.

[0007] In a preferred embodiment, a torsion disc is fixedly connected to the lower end surface of the lead screw.

[0008] In a preferred embodiment, a soft pad interlayer is fixedly connected to the inner surface of the mounting slot plate and the pressing plate.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0010] This invention uses a counter and photoelectric sensor at the lower end of the skirt panel to record the number of people boarding the escalator, and a counter and photoelectric sensor at the upper end of the skirt panel to record the number of people leaving the escalator. When the counters at the upper and lower ends of the skirt panel record the same number of people, the controller will determine that there is no one on the escalator and will reduce the operating speed of the steps to achieve energy saving.

[0011] When the counter and photoelectric sensor are damaged and require repair, the movable plate is moved upward by rotating the screw. The movement of the movable plate causes the pressing plate and the limit bracket to move upward. At this time, the pressing plate moves away from the upper end of the counter, releasing the counter's movement restriction at the mounting slot. Simultaneously, the protrusion at the upper end of the limit bracket also moves away from the limit slot, releasing the photoelectric sensor and mounting bracket's movement restriction on the skirt plate. After that, the counter, photoelectric sensor, and mounting bracket can be easily removed from the skirt plate, which is simple and quick, reducing the difficulty of repairing the counter and photoelectric sensor. Attached Figure Description

[0012] Figure 1 A schematic diagram of the overall structure of an energy-saving control device for escalators provided by this utility model;

[0013] Figure 2 A schematic diagram of the structure of one end of the skirt plate of an energy-saving control device for an escalator provided by this utility model;

[0014] Figure 3 A schematic diagram of the structure surrounding the photoelectric sensor of an energy-saving control device for escalators provided by this utility model;

[0015] Figure 4 This utility model provides a schematic diagram of the structure around the lead screw of an energy-saving control device for escalators.

[0016] Legend:

[0017] 1. Truss; 2. Skirt; 3. Guardrail; 4. Handrail belt; 5. Controller; 6. Mounting slot plate; 7. Counter; 8. Photoelectric sensor; 9. Mounting bracket; 10. Limiting slot; 11. Lead screw; 12. Torsion disc; 13. Movable plate; 14. Pressing plate; 15. Limiting bracket. Detailed Implementation

[0018] 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.

[0019] Example 1

[0020] like Figure 1-4As shown, this utility model provides a technical solution: an energy-saving control device for escalators, including a truss 1, with steps on the truss 1 via a chain drive, and skirts 2 fixed on both sides of the steps on the surface of the truss 1. Guardrails 3 are fixedly connected to the surface of the skirts 2, and handrail belts 4 are cyclically installed on the skirts 2 and guardrails 3. A controller 5 is fixed to the upper surface of the truss 1, which controls the start and stop of the steps and their operating speed. Mounting slots 6 are fixed to the upper and lower surfaces of the skirts 2, and counters 7 are engaged in the slots of the mounting slots 6. A photoelectric sensor 8 is electrically connected to one side of the counter 7. Both the electrical sensor 8 and the counter 7 are electrically connected to the controller 5. With the help of photoelectric sensors 8 at the lower and upper ends of the skirt panel 2, they detect whether anyone is approaching the lower and upper ends of the truss 1. When the photoelectric sensor 8 detects someone, the counter 7 performs a count, and the data obtained by the counter 7 and the photoelectric sensor 8 is transmitted to the controller 5 in real time. The counter 7 and photoelectric sensor 8 at the lower end of the skirt panel 2 record the number of people boarding the escalator, while the counter 7 and photoelectric sensor 8 at the upper end of the skirt panel 2 record the number of people leaving the escalator. When the number of people recorded by the counters 7 at the upper and lower ends of the skirt panel 2 is the same, the controller 5 determines that there is no one on the escalator and will then lower the escalator. The low-speed operation achieves energy saving. A mounting bracket 9 is fixedly installed on the surface of the photoelectric sensor 8, and limit grooves 10 are formed on both sides of the mounting bracket 9. A lead screw 11 is rotatably installed on the surface of the skirt plate 2 above the mounting groove plate 6, and a movable plate 13 is threadedly connected to the surface of the lead screw 11. The movable plate 13 slides in contact with the surface of the skirt plate 2. Rotating the lead screw 11 causes the movable plate 13 to move up and down on the skirt plate 2. Pressing plates 14 are fixed on both sides of the lower end of the movable plate 13, and limit brackets 15 are fixed on both sides of the upper end of the movable plate 13. The protrusions at the upper ends of the limit brackets 15 are connected to the limit... The slot 10 is engaged. When the counter 7 and photoelectric sensor 8 are damaged and need repair, the screw 11 is rotated to move the movable plate 13 upward. The movement of the movable plate 13 drives the pressing plate 14 and the limiting bracket 15 to move upward. At this time, the pressing plate 14 leaves the upper end of the counter 7, releasing the movement restriction of the counter 7 at the mounting slot 6. At the same time, the protrusion at the upper end of the limiting bracket 15 also leaves the limiting slot 10, releasing the movement restriction of the photoelectric sensor 8 and the mounting bracket 9 on the skirt plate 2. Then the counter 7, photoelectric sensor 8 and mounting bracket 9 can be easily removed from the skirt plate 2. It is simple and quick, reducing the difficulty of repairing the counter 7 and photoelectric sensor 8.

[0021] Example 2

[0022] like Figure 1-4As shown, the length of the distance between the two limiting brackets 15 is consistent with the width of the mounting bracket 9 itself. When the mounting bracket 9 is placed on the surface of the skirt plate 2 between the connecting arms of the limiting brackets 15, and the limiting groove 10 on the mounting bracket 9 is not connected to the protrusion on the limiting bracket 15, by making the length of the distance between the limiting brackets 15 consistent with the width of the mounting bracket 9, the left and right movement of the mounting bracket 9 after being placed on the skirt plate 2 can be avoided, which can ensure the smooth connection between the limiting groove 10 and the protrusion on the limiting bracket 15. A torsion disc 12 is fixedly connected to the lower end surface of the screw 11. By manually turning the torsion disc 12, the screw 11 can be easily driven to rotate. A soft pad interlayer is fixedly connected to the inner surface of the mounting slot plate 6 and the pressing plate 14. With the help of the soft pad clamping, the counter 7 is reduced from the squeezing damage when it is clamped and fixed between the mounting slot plate 6 and the pressing plate 14.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An energy-saving control device for escalators, comprising a truss (1), characterized in that: The truss (1) has a chain drive with steps, and skirts (2) are fixed on both sides of the steps on the surface of the truss (1). Guardrails (3) are fixedly connected to the surface of the skirts (2). Handrails (4) are cyclically installed on the skirts (2) and guardrails (3). A controller (5) is fixed at the upper surface of the truss (1). Mounting slots (6) are fixed on the upper and lower surfaces of the skirts (2), and a counter (7) is engaged in the slot of the mounting slot (6). A photoelectric sensor (8) is electrically connected to one side of the counter (7), and both the photoelectric sensor (8) and the counter (7) are electrically connected to the controller (5). The surface of the photoelectric sensor (8) is fixedly mounted with a mounting bracket (9), and a limit groove (10) is opened on both the left and right sides of the mounting bracket (9). The surface of the skirt plate (2) is rotatably mounted with a lead screw (11) above the mounting slot plate (6), and a movable plate (13) is threadedly connected to the surface of the lead screw (11). The movable plate (13) is slidably connected to the surface of the skirt plate (2). Pressing plates (14) are fixed on both sides of the lower end of the movable plate (13), and a limit frame (15) is fixed on both the left and right sides of the upper end of the movable plate (13). The protrusion at the upper end of the limit frame (15) engages with the limit groove (10).

2. The energy-saving control device for escalators according to claim 1, characterized in that: The length of the distance between the two limiting brackets (15) is consistent with the width of the mounting bracket (9) itself.

3. The energy-saving control device for escalators according to claim 1, characterized in that: A torsion disc (12) is fixedly connected to the lower end surface of the lead screw (11).

4. The energy-saving control device for escalators according to claim 1, characterized in that: A soft pad interlayer is fixedly connected to the inner surface of the mounting slot plate (6) and the pressing plate (14).

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