Car door single-face lifting mechanism for hoistway construction elevator

Abstract

The utility model provides a lift car door single-face lifting mechanism for a shaft construction elevator, which relates to the technical field of construction elevators and comprises a lift car, a lift car door slidably connected onto the lift car and a driving main beam arranged on one side of the lift car, a motor is mounted at the top end of the lift car, the output end of the motor is connected with a chain wheel, the outer side of the chain wheel is meshed with a chain, and the chain is connected with the lift car door. One end of the chain penetrates through a direction adjusting idler wheel installed on the lift car to be connected with the balancing weight, the other end of the chain is connected with the lift car door, rails are connected to the two sides of the balancing weight in a sliding mode, the chain wheel can be driven by the motor to rotate, the chain wheel can drive the chain, and the direction adjusting idler wheel can enable the chain to change the direction. The balancing weight can balance the weight of the lift car, the space, occupied by the lift car door opening and closing mechanism, on the other side of the lift car can be liberated through the track only installed on one side of the driving main beam, the use space of the lift car is greatly increased, meanwhile, the self weight of the lift car is further reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of construction elevators, in particular to a single-sided lifting mechanism for a car door of a shaft construction elevator. Background Technique

[0002] A shaft construction elevator is a vertical transportation device specifically used in construction sites, mainly used to transport personnel, building materials and tools to each floor, playing a key role in high-rise buildings, bridge construction and large industrial projects, greatly improving construction efficiency and safety. Among them, the shaft construction elevator door is a crucial part of the elevator system, directly related to the safety and operation efficiency of the elevator. The drive system generally uses an electric motor to drive, and realizes the opening and closing of the door through a transmission system such as a chain, gear or belt. Most elevator door designs include a counterweight system to balance the weight of the door, reduce the load on the drive system, and ensure the smooth operation of the door during opening and closing. However, although this design can balance the weight of the door, reduce the load on the drive system, and ensure the smooth operation of the door during opening and closing, it also brings some obvious disadvantages.

[0003] Since shaft construction elevators usually operate in narrow shafts, the limited space further restricts the size and design of the car. In this case, the existing shaft construction elevators install counterweight blocks and drive chains on both sides, which requires a considerable amount of space to be reserved outside the car, thus reducing the effective cargo space of the car. For construction sites that need to frequently transport a large amount of materials and personnel, this will make the operation efficiency of the car low and also reduce the service life of the traction mechanism. Content of the Utility Model

[0004] The purpose of the utility model is to provide a single-sided lifting mechanism for a car door of a shaft construction elevator, which solves the problems that the shaft construction elevator installs counterweight blocks and drive chains on both sides, requires a considerable amount of space to be reserved outside the car, thus reducing the effective cargo space of the car, making the operation efficiency of the car low, and reducing the service life of the traction mechanism.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A single-sided lifting mechanism for a car door of a shaft construction elevator, including a car, a car door slidably connected thereto, and a driving main beam arranged on one side of the car. A motor is installed at the top of the car, the output end of the motor is connected with a sprocket, a chain is meshed outside the sprocket, one end of the chain passes through a steering roller installed on the car and is connected with a counterweight block, and the other end of the chain is connected with the car door;

[0006] The two sides of the counterweight block are slidably connected with tracks.

[0007] Preferably, the tracks are installed on one side of the driving main beam.

[0008] Preferably, a connector is provided at the connection between the chain and the car door.

[0009] Preferably, the steering roller is connected to the car through a roller collar.

[0010] Preferably, a plurality of car rollers are provided between the car and the car door.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] First, the motor can drive the sprocket to rotate, the sprocket can drive the chain, the steering roller can change the direction of the chain, which is connected to the counterweight. The counterweight can balance the weight of the car, reduce the load on the motor, extend the service life of the motor, ensure the smooth operation of the car, the track can guide the movement of the counterweight, the connector is used to connect the chain to the car door to provide a reliable connection, the roller collar can install the steering roller on the car and also limit the chain within the steering roller to prevent derailment, and the car rollers can reduce friction, vibration and noise when the car door moves, and improve the smoothness of opening and closing the door.

[0013] Second, through the track installed only on one side of the driving main beam, the space occupied by the car door opening and closing mechanism on the other side of the car can be liberated, greatly improving the usable space of the car. At the same time, it also further reduces the self-weight of the car and improves the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the inner structure of the car of the present utility model;

[0016] Figure 3 is an enlarged schematic diagram of part A of the present utility model;

[0017] Figure 4 is an enlarged schematic diagram of part B of the present utility model.

[0018] Reference numerals in the figures: 1, car; 2, car door; 3, driving main beam; 4, motor; 5, sprocket; 6, chain; 7, steering roller; 8, counterweight; 9, track; 10, connector; 11, roller collar; 12, car roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4 As shown in the figure, the present utility model provides a technical solution: a single-sided lifting mechanism for a car door of a hoistway construction elevator, which includes a car 1, a car door 2 slidably connected thereto, and a driving main beam 3 arranged on one side of the car 1. A motor 4 is installed at the top of the car 1, the output end of the motor 4 is connected to a sprocket 5, a chain 6 is engaged outside the sprocket 5, one end of the chain 6 passes through a steering roller 7 installed on the car 1 and is connected to a counterweight 8, and the other end of the chain 6 is connected to the car door 2;

[0021] The two sides of the counterweight 8 are slidably connected with a track 9. By driving the sprocket 5 to rotate through the motor 4, the sprocket 5 can drive the chain 6, and the steering roller 7 can change the direction of the chain 6 and is connected to the counterweight 8. The counterweight 8 can balance the weight of the car 1, reduce the load of the motor 4, extend the service life of the motor 4, ensure the smooth operation of the car 1, and the track 9 can guide the movement of the counterweight 8.

[0022] Furthermore, the track 9 is installed on one side of the driving main beam 3. By installing the track 9 only on one side of the driving main beam 3, the space occupied by the car door 2 opening and closing mechanism on the other side of the car 1 can be liberated, greatly improving the use space of the car 1. At the same time, it also further reduces the self-weight of the car 1 and improves the service life of the motor 4.

[0023] Furthermore, a connector 10 is provided at the connection between the chain 6 and the car door 2. The connector 10 is used to connect the chain 6 to the car door 2 to provide a reliable connection.

[0024] Furthermore, the steering roller 7 is connected to the car 1 through a roller retaining sleeve 11. The roller retaining sleeve 11 can install the steering roller 7 on the car 1 and can also limit the chain 6 within the steering roller 7 to prevent the chain from coming off.

[0025] Furthermore, a plurality of car rollers 12 are provided between the car 1 and the car door 2. The car rollers 12 can reduce friction, vibration, noise and improve the smoothness of opening and closing the car door 2 when the car door 2 moves.

[0026] Working principle: First, move a single-sided lifting mechanism for the car door of a hoistway construction elevator to the working position. When in use, in the first step, the car 1 runs to the designated floor. In the second step, the motor 4 drives the sprocket 5 to rotate, thereby driving the chain 6. In the third step, with the auxiliary effect of the counterweight 8, the chain 6 drives the car door 2 to open. In the fourth step, by rotating the motor 4 in the reverse direction, the car door 2 is lowered and closed. In this way, the use process of a single-sided lifting mechanism for the car door of a hoistway construction elevator is completed.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single-sided lifting mechanism for a car door of a hoistway construction elevator, comprising a car (1), a car door (2) slidably connected thereto, and a driving main beam (3) arranged on one side of the car (1), characterized in that: A motor (4) is installed at the top of the car (1), the output end of the motor (4) is connected to a sprocket (5), the outer side of the sprocket (5) is meshed with a chain (6), one end of the chain (6) passes through a steering roller (7) installed on the car (1) and is connected to a counterweight (8), and the other end of the chain (6) is connected to the car door (2); Rails (9) are slidably connected to both sides of the counterweight block (8).

2. A single-sided lifting mechanism for a car door of a hoistway construction elevator according to claim 1, characterized in that: The track (9) is installed on one side of the driving main beam (3).

3. The single-sided lifting mechanism for a car door of a hoistway construction elevator according to claim 1, characterized in that: A connector (10) is provided at the connection between the chain (6) and the car door (2).

4. The single-sided lifting mechanism for a car door of a hoistway construction elevator according to claim 1, characterized in that: The steering roller (7) and the car (1) are connected via a roller sleeve (11).

5. The single-sided lifting mechanism for a car door of a hoistway construction elevator according to claim 1, characterized in that: A plurality of car rollers (12) are arranged between the car (1) and the car door (2).

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