Elevator door stress balance control device

Abstract

The utility model discloses an elevator door stress balance control device which comprises elevator doors and a driving mechanism used for driving the elevator doors to move, the bottom end of one elevator door is fixedly connected with a connecting rod, a first rack is fixedly installed at the bottom end of the connecting rod, a connecting plate is fixedly installed at the bottom end of the other elevator door, and a second rack is fixedly installed at the bottom end of the connecting plate. A second rack is fixedly installed at the bottom end of the connecting plate, a gear is arranged between the second rack and the first rack, and the gear is meshed with the first rack and the second rack. In the process that the driving mechanism enables the upper portion of the elevator door to be stressed so as to move, the gear, the first rack and the second rack can drive the lower portion of the elevator door to be stressed, stress balance of the two elevator doors is achieved, the elevator doors can be stably opened and closed, the probability of elevator door failures is reduced, and the safety of the elevator is improved. And the safety performance of the elevator door is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator doors, in particular to a force balance control device for elevator doors. Background Art

[0002] The elevator door is one of the components of the elevator. It is used to separate the elevator car from the shaft or floor entrance to ensure the safe operation of the elevator and the safe entry and exit of passengers. The elevator door is generally composed of door panels, door frames, guide devices, door leaves, door wheels, door locks and door opening mechanisms.

[0003] When the elevator door opens, the force driving the elevator door to open mainly comes from the elevator door motor. The motor is usually installed above or on the side of the elevator door. When the motor is powered on, it will generate torque, which drives the elevator door to open and close through the transmission device such as the door machine's belt or chain.

[0004] The driving force device of the elevator door is generally set on the top or side of the elevator door. The specific setting position depends on the type and structure of the elevator door, but the drive motor and transmission mechanism are usually installed above or on the side of the elevator door. For most passenger elevators, the drive motor is usually installed on the top of the elevator door, that is, the top of the car. This design allows the motor to easily transfer power to the door leaf through the transmission device to open and close the door. The transmission device is responsible for converting the rotational motion of the motor into linear or rotational motion of the door leaf, ensuring that the door leaf can be opened and closed smoothly.

[0005] The force position of the elevator door drive in the prior art is generally at the top of the elevator door. In the process of driving the elevator door to move, the upper part of the elevator door is subjected to the driving force, so that the elevator door moves, thereby realizing the closing and opening of the elevator door. In the process of driving the elevator door, the lower part of the elevator door slides between the lower track, and no redundant driving mechanism is provided at the lower part. Only by driving the upper part of the elevator door, the entire elevator door is driven to move. If the friction between the lower part of the elevator door body and the lower track is large, it may cause jamming, which may cause the elevator door to tilt. In severe cases, it may cause elevator failure, posing a threat to the safety of passengers. Utility Model Content

[0006] The purpose of the utility model is to provide a force balance control device for an elevator door to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a force balance control device for an elevator door, comprising an elevator door and a driving mechanism for driving the elevator door to move, wherein the bottom end of one of the elevator doors is fixedly connected to a connecting rod, and the bottom end of the connecting rod is fixedly installed with a first rack, and the bottom end of the other elevator door is fixedly installed with a connecting plate, and the bottom end of the connecting plate is fixedly installed with a second rack, a gear is arranged between the second rack and the first rack, and the gear is meshed with the first rack and the second rack.

[0008] As a further description of the above technical solution: the first rack, the second rack and the gear are each set in two, and the two first racks and the second rack are respectively arranged at the bottom ends of the two elevator doors and are arranged opposite to each other, and the two gears are respectively arranged between the two first racks and the second rack.

[0009] As a further description of the above technical solution: the driving mechanism includes an electric control device body, a track is arranged at the bottom of the electric control device, two driving blocks are slidably installed inside the track, and the two driving blocks are electrically connected to the electric control device body.

[0010] As a further description of the above technical solution: a mounting frame is fixedly installed at the bottom ends of the two driving blocks, a plurality of fixing bolts are arranged on the mounting frame, and the elevator door is fixedly connected to the mounting frame through the plurality of fixing bolts.

[0011] As a further description of the above technical solution: a fixing plate is provided on one side of the two gears, the two gears are rotatably connected to the fixing plate, and the two fixing plates are respectively provided on one side away from the connecting plate.

[0012] As a further description of the above technical solution: the bottom ends of the two second racks are fixedly connected with multiple support plates, the multiple support plates are arranged opposite to each other, rollers are rotatably connected between the multiple support plates, and slide rails are arranged under the two second racks, and the multiple rollers are rollingly connected to the slide rails.

[0013] The utility model provides a force balancing control device for elevator doors. It has the following beneficial effects: the driving mechanism of the utility model drives the elevator doors at both ends to move toward both ends. During the movement of the elevator door, the first rack at the bottom drives the gear to rotate, the gear drives the second rack to rotate, the second rack moves in the opposite direction of the first rack, and the second rack drives the other elevator door to move through the connecting plate at the bottom of the other elevator door, so that the driving mechanism causes the elevator door to be subjected to force above and thus move, and the gear, the first rack and the second rack can also drive the elevator door below to be subjected to force, so that the force balance of the two elevator doors is achieved, and the elevator door can be opened and closed stably, which reduces the probability of elevator door failure and increases the safety performance of the elevator door.

[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an elevator door force balance control device proposed by the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the elevator door of the utility model after opening;

[0018] Figure 3 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0019] Figure 4 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the slide rail, roller, rack and gear of the utility model.

[0021] Legend:

[0022] 1. Electric control device body; 2. Track; 3. Drive block; 4. Mounting frame; 5. Fixing bolt; 6. Elevator door; 7. Connecting rod; 8. First rack; 9. Fixing plate; 10. Gear; 11. Second rack; 12. Connecting plate; 13. Support plate; 14. Roller; 15. Slide rail. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-5, a force balancing control device for an elevator door, comprising an elevator door 6 and a driving mechanism for driving the elevator door 6 to move, wherein a connecting rod 7 is fixedly connected to the bottom end of one of the elevator doors 6, a first rack 8 is fixedly installed to the bottom end of the connecting rod 7, a connecting plate 12 is fixedly installed to the bottom end of the other elevator door 6, a second rack 11 is fixedly installed to the bottom end of the connecting plate 12, a gear 10 is arranged between the second rack 11 and the first rack 8, the gear 10 is meshed with the first rack 8 and the second rack 11; the driving mechanism drives the elevator doors 6 at both ends to move toward both ends, and during the movement of the elevator door 6, The first rack 8 at the bottom drives the gear 10 to rotate, and the gear 10 drives the second rack 11 to rotate. The second rack 11 moves in the opposite direction of the first rack 8, and the second rack 11 drives the other elevator door 6 to move through the connecting plate 12 at the bottom of the other elevator door 6, so that the driving mechanism causes the elevator door 6 to be subjected to force above and thus move. In the process, the elevator door 6 can also be subjected to force below through the gear 10, the first rack 8 and the second rack 11, so that the force balance of the two elevator doors 6 is achieved, and the elevator door 6 can be stably opened and closed, thereby reducing the probability of failure of the elevator door 6 and increasing the safety performance of the elevator door 6.

[0025] As a preferred technical solution of this embodiment, the first rack 8, the second rack 11 and the gear 10 are each provided in two numbers, and the two first racks 8 and the second rack 11 are respectively provided at the bottom ends of the two elevator doors 6 and are arranged opposite to each other, and the two gears 10 are respectively provided between the two first racks 8 and the second rack 11; the force balance of the two elevator doors 6 can be achieved at the same time.

[0026] As the preferred technical solution of this embodiment, the driving mechanism includes an electric control device body 1, a track 2 is arranged at the bottom end of the electric control device, two driving blocks 3 are slidably installed inside the track 2, and the two driving blocks 3 are electrically connected to the electric control device body 1; the electric control device body 1 is the existing technology, and its function is to move the driving block 3, and the driving block 3 can drive the elevator door 6 to slide to realize the opening and closing of the elevator door 6.

[0027] As a preferred technical solution of this embodiment, a mounting frame 4 is fixedly installed at the bottom ends of the two driving blocks 3, and a plurality of fixing bolts 5 are provided on the mounting frame 4. The elevator door 6 is fixedly connected to the mounting frame 4 by the plurality of fixing bolts 5; the mounting frame 4 is used to fix the elevator door 6, so as to facilitate the disassembly and maintenance of the elevator door 6.

[0028] As a preferred technical solution of this embodiment, a fixing plate 9 is provided on one side of the two gears 10, and the two gears 10 are rotatably connected to the fixing plate 9, and the two fixing plates 9 are respectively arranged on the side away from the connecting plate 12; the setting of the fixing plate 9 realizes the fixing and limiting of the gear 10, and after the gear 10 is limited, only the first rack 8 and the second rack 11 can move.

[0029] As a preferred technical solution of this embodiment, the bottom ends of the two second racks 11 are fixedly connected with a plurality of support plates 13, the plurality of support plates 13 are arranged opposite to each other in pairs, and rollers 14 are rotatably connected between the plurality of support plates 13. Slide rails 15 are arranged below the two second racks 11, and the plurality of rollers 14 are rollingly connected with the slide rails 15; when the second rack 11 moves, the rollers 14 below slide with the slide rails 15, which can reduce the friction of the movement of the second rack 11 and make the second rack 11 move more smoothly.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A force balance control device for an elevator door, comprising an elevator door (6) and a driving mechanism for driving the elevator door (6) to move, characterized in that: A connecting rod (7) is fixedly connected to the bottom end of one of the elevator doors (6), and a first rack (8) is fixedly installed on the bottom end of the connecting rod (7); a connecting plate (12) is fixedly installed on the bottom end of the other elevator door (6), and a second rack (11) is fixedly installed on the bottom end of the connecting plate (12); a gear (10) is arranged between the second rack (11) and the first rack (8), and the gear (10) is meshed with the first rack (8) and the second rack (11).

2. The elevator door force balance control device according to claim 1, characterized in that: The first rack (8), the second rack (11) and the gear (10) are each provided in pairs, and the two first racks (8) and the two second racks (11) are respectively provided at the bottom ends of the two elevator doors (6) and are arranged opposite to each other, and the two gears (10) are respectively provided between the two first racks (8) and the two second racks (11).

3. The elevator door force balance control device according to claim 1, characterized in that: The driving mechanism comprises an electric control device body (1), a track (2) is arranged at the bottom end of the electric control device, two driving blocks (3) are slidably mounted inside the track (2), and the two driving blocks (3) are electrically connected to the electric control device body (1).

4. The elevator door force balance control device according to claim 3, characterized in that: A mounting frame (4) is fixedly mounted on the bottom ends of the two driving blocks (3), a plurality of fixing bolts (5) are arranged on the mounting frame (4), and the elevator door (6) is fixedly connected to the mounting frame (4) via the plurality of fixing bolts (5).

5. The elevator door force balance control device according to claim 1, characterized in that: A fixing plate (9) is provided on one side of the two gears (10), the two gears (10) are rotatably connected to the fixing plate (9), and the two fixing plates (9) are respectively arranged on a side away from the connecting plate (12).

6. The elevator door force balance control device according to claim 1, characterized in that: The bottom ends of the two second racks (11) are fixedly connected to a plurality of support plates (13), the plurality of support plates (13) are arranged opposite to each other in pairs, rollers (14) are rotatably connected between the plurality of support plates (13), and a slide rail (15) is arranged below the two second racks (11), and the plurality of rollers (14) are rollingly connected to the slide rail (15).

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