Elevator with multiple counterweight devices

Abstract

The utility model relates to the technical field of elevators, in particular to an elevator with multiple counterweight devices, which comprises an elevator car, car top diversion sheaves are rotatably mounted on four sides of the top of the elevator car, the elevator car is arranged in a hoistway, and top elevator car diversion sheaves are rotatably mounted at positions, corresponding to the four sides of the top of the elevator car, of the top of an inner cavity of the hoistway. A traction wheel and a guide wheel are rotationally installed on one side of the top in the shaft, two counterweight devices are arranged in the shaft, and a balancing weight diversion sheave is arranged in the shaft. According to the utility model, a plurality of counterweight positions are arranged, the arrangement is ingenious, positions for opening doors in four directions are reserved, so that the industry blank can be filled up, the space of a shaft can be fully utilized, the area and the corresponding load capacity of a lift car are increased, the use requirements are met, and the counterweight device is convenient to adjust and operate; and the safety performance stress strength of the whole elevator is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator with multiple counterweight devices. Background Technique

[0002] With the development of society, people's pursuit of a better life is becoming stronger and stronger. Various special-shaped buildings are equipped with elevators, the load of the elevators is getting larger and larger, and the opening directions of the elevators are increasing. It has changed from a single-side opening to even four-side openings. Most of the elevator designs are traction-driven. When the car moves up and down, the counterweight device cooperates for balanced operation. In the traditional design, the car and the counterweight are configured one by one. Under the driving force of the traction machine, the elevator traction wheel drives the steel wire rope to make the car move up and down. When the car moves upward, the counterweight moves downward, and their running directions are opposite. Now, due to the requirements for the opening direction and the demand for large-load elevators, the design of a single counterweight device sometimes cannot meet the balance coefficient specified in the design due to shaft restrictions, resulting in the abandonment of the elevator function in many projects and the inability to achieve modern and intelligent management effects;

[0003] Therefore, we propose an elevator with multiple counterweight devices. Content of the Utility Model

[0004] The purpose of the utility model is to provide an elevator with multiple counterweight devices, which solves the problems raised in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An elevator with multiple counterweight devices, including a car, the top four sides of the car are rotatably installed with car top deflecting sheaves, the car is arranged in a hoistway, and the top of the hoistway cavity is rotatably installed with top car deflecting sheaves corresponding to the top four sides of the car, and a traction wheel and a guide wheel are rotatably installed on one side of the inner top of the hoistway;

[0006] Two identical counterweight devices are arranged on one side of the car, and counterweight deflecting sheaves are rotatably installed on both sides of the top of the counterweight device. The top of the hoistway cavity is rotatably installed with top first counterweight deflecting sheaves corresponding to the counterweight device, and a top second counterweight deflecting sheave is installed between the two top first counterweight deflecting sheaves. A steel wire rope is fixed on one side of the inner top of the hoistway cavity. The steel wire rope bypasses the car top deflecting sheaves, the top car deflecting sheaves, the traction wheel, the guide wheel, the counterweight deflecting sheaves, the top first counterweight deflecting sheaves and the top second counterweight deflecting sheaves, and the outer end of the steel wire rope is fixedly connected to the other side of the inner top of the hoistway cavity.

[0007] By adopting the above technical solution, first, the traction sheave drives the steel wire rope to wind and unwind, thereby realizing the lifting and lowering of the car in the hoistway. During the lifting process of the car, the two counterweight devices are released and lowered, so that they are counterweight buffered by the counterweight buffer block arranged at the bottom of the hoistway inner cavity. By arranging two counterweight devices, compared with the setting of a single counterweight device in the past, in the case of the same amount of materials, dividing them into two counterweight devices makes the connection more firm. At the same time, the thickness of the counterweight device can be reduced, thereby increasing the volume of the car and improving the utilization rate of the hoistway space.

[0008] As a preferred embodiment of the present invention, the number of the top second counterweight idler pulleys is one.

[0009] As a preferred embodiment of the present invention, the number of the top second counterweight idler pulleys is multiple.

[0010] As a preferred embodiment of the present invention, the car is a single-opening box body.

[0011] As a preferred embodiment of the present invention, the car is a four-opening box body.

[0012] As a preferred embodiment of the present invention, counterweight guide rails are fixed on both side walls of the counterweight device, a counterweight slider adapted to the counterweight guide rail is fixed on the side wall of the counterweight device, and the counterweight slider is slidably installed on the outer wall of the counterweight guide rail.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] An elevator with multiple counterweight devices according to the technical solution of the present application, by setting multiple counterweight positions and arranging them ingeniously, the positions for opening doors in four directions can be created, filling the industry gap. The multiple counterweight arrangements can make more full use of the hoistway space, increase the car area and the corresponding load capacity, meet the use requirements, facilitate the adjustment operation of the counterweight device, and greatly improve the safety performance and force-bearing strength of the entire elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more obvious:

[0016] Figure 1 It is a schematic structural diagram of the elevator with multiple counterweight devices of the present invention, with two counterweight devices arranged on the same side;

[0017] Figure 2 It is a schematic diagram of the distribution of two counterweight devices of the elevator with multiple counterweight devices of the present invention in a diagonal structure;

[0018] Figure 3The figure is a top view structural schematic diagram of two counterweight devices distributed on the same side of an elevator with a multi-counterweight device of the present utility model;

[0019] Figure 4 The figure is a top view structural schematic diagram of two counterweight devices distributed diagonally in an elevator with a multi-counterweight device of the present utility model.

[0020] In the figure:

[0021] 1. Carriage; 11. Steel wire rope; 12. Guide pulley; 13. Traction sheave; 14. Counterweight sheave on the car top; 15. Top counterweight sheave of the car.

[0022] 2. Counterweight device; 21. Counterweight sheave; 22. Counterweight guide rail; 23. Top first counterweight sheave; 24. Top second counterweight sheave. Specific implementation mode

[0023] Embodiment 1

[0024] Please refer to Figure 1 and 3 An elevator with a multi-counterweight device, including a carriage 1. The carriage 1 is a single-opening box body or a double-opening box body. Counterweight sheaves 14 are rotatably installed on the four sides of the top of the carriage 1. The carriage 1 is arranged in a hoistway. At the positions corresponding to the four sides of the top of the carriage 1 on the top inner cavity of the hoistway, top counterweight sheaves 15 are rotatably installed. On one side of the top inside the hoistway, a traction sheave 13 and a guide pulley 12 are rotatably installed;

[0025] On one side of the carriage 1, there are two identical counterweight devices 2. Counterweight sheaves 21 are rotatably installed on both sides of the top of the counterweight device 2. At the position corresponding to the counterweight device 2 on the top inner cavity of the hoistway, top first counterweight sheaves 23 are rotatably installed. A top second counterweight sheave 24 is installed between the two top first counterweight sheaves 23. The number of the top second counterweight sheaves 24 is one. A steel wire rope 11 is fixed on one side of the top inner cavity of the hoistway. The steel wire rope 11 bypasses the counterweight sheaves 14 on the car top, the top counterweight sheaves 15 of the car, the traction sheave 13, the guide pulley 12, the counterweight sheaves 21, the top first counterweight sheaves 23 and the top second counterweight sheaves 24. The outer end of the steel wire rope 11 is fixedly connected to the other side of the top inner cavity of the hoistway.

[0026] During actual use, first, the traction sheave 13 drives the steel wire rope 11 to wind and unwind, so as to drive the carriage 1 in the hoistway to lift and lower. During the lifting process of the carriage 1, the two counterweight devices 2 are released and lowered, so that they are counterweight buffered by the counterweight buffer blocks arranged at the bottom of the hoistway inner cavity. By setting two counterweight devices 2, compared with the setting of a single counterweight device in the past, in the case of the same amount of materials, dividing them into two counterweight devices 2 makes the connection more firm. At the same time, the thickness of the counterweight device 2 can be reduced, so that the volume of the carriage 1 can be increased, and thus the utilization rate of the hoistway space is improved.

[0027] Furthermore, counterweight guide rails 22 are fixed to both side walls of the counterweight device 2, and counterweight sliders adapted to the counterweight guide rails 22 are fixed to the side walls of the counterweight device 2. The counterweight sliders are slidably installed on the outer wall of the counterweight guide rails 22. By providing the counterweight sliders and the counterweight guide rails 22, the lifting of the counterweight device 2 can be limited, thereby improving the stability of its lifting.

[0028] It should be noted that the counterweight device 2 is composed of a fixed frame and a plurality of counterweight blocks filled inside. The steel wire rope 11 is connected to the top of the frame, and the counterweight slider is fixed to the side wall of the frame.

[0029] Embodiment 2

[0030] Please refer to Figure 2 and 3 , and the differences from Embodiment 1 are as follows: The car 1 is a four-opening box body, two counterweight devices 2 are distributed at two diagonal corners of the car 1, and the number of the top second counterweight sheaves 24 is multiple. The multiple top second counterweight sheaves 24 are evenly distributed between the two top second counterweight sheaves 24;

[0031] Thus, during the use of the car 1, it can adapt to the four-opening use of the car 1. At the same time, the two counterweight devices 2 are distributed at the diagonal corners of the hoistway, so that the space occupation can be further reduced, and the hoistway space can be utilized more fully, enabling the area and corresponding load capacity of the car 1 to be increased to meet the use requirements, and the overall balance can be increased, greatly improving the safety performance and stress intensity of the entire elevator. At the same time, during use, since the counterweight devices 2 are distributed at a relatively long distance, multiple top second counterweight sheaves 24 are added, so that the steel wire rope 11 is accurately and stably guided when passing through the top of the car 1, avoiding spatial obstacles.

[0032] The implementation principle of the elevator with multiple counterweight devices in this application is as follows: When the counterweight devices 2 are distributed on one side of the car 1, the steel wire rope 11 is wound and unwound by the traction sheave 13, thereby driving the car 1 in the hoistway to lift and lower. During the lifting process of the car 1, the two counterweight devices 2 are released and lowered, so as to perform counterweight buffering with the counterweight buffer blocks arranged at the bottom of the hoistway inner cavity. By providing two counterweight devices 2, compared with the previous single counterweight device, in the case of the same amount of materials, dividing them into two counterweight devices 2 makes the connection more firm, and at the same time, the thickness of the counterweight device 2 can be reduced, thereby increasing the volume of the car 1 and further improving the utilization rate of the hoistway space;

[0033] When the counterweight devices 2 are distributed diagonally in the car 1, it can adapt to the use of four-opening doors of the car 1. At the same time, the two counterweight devices 2 are distributed at the diagonal corners of the hoistway, so that the space occupation can be further reduced, and thus the hoistway space can be utilized more fully, enabling the area and corresponding load capacity of the car 1 to be increased. At the same time, during use, since the counterweight devices 2 are distributed at a relatively long distance, multiple top second counterweight deflecting pulleys 24 are added, so that the steel wire ropes 11 are accurately and stably guided when passing through the top of the car 1, avoiding spatial obstacles.

[0034] In addition, the components included in the elevator with multiple counterweight devices of the present utility model are all general standard components or components known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods. At the idle place of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the adapted monitoring computer and power supply, are connected by wires. For the specific connection means, reference should be made to the following working principle to complete the electrical connection according to the sequence of operation of each electrical component. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of the electrical control will be given.

Claims

1. An elevator with a multi-pair weight device, comprising a car (1), characterized in that: The top of the car (1) is rotatably installed with car top deflecting sheaves (14) on all four sides. The car (1) is arranged in the hoistway. At the top of the inner cavity of the hoistway corresponding to the four sides of the top of the car (1), a top car deflecting sheave (15) is rotatably installed. On one side of the top of the hoistway, a traction sheave (13) and a guide sheave (12) are rotatably installed. On one side of the car (1), there are two identical counterweight devices (2). On both sides of the top of the counterweight device (2), counterweight deflecting sheaves (21) are rotatably installed. At the top of the inner cavity of the hoistway corresponding to the counterweight device (2), a top first counterweight deflecting sheave (23) is rotatably installed. A top second counterweight deflecting sheave (24) is installed between the two top first counterweight deflecting sheaves (23). On one side of the top of the inner cavity of the hoistway, a wire rope (11) is fixed. The wire rope (11) bypasses the car top deflecting sheaves (14), the top car deflecting sheaves (15), the traction sheave (13), the guide sheave (12), the counterweight deflecting sheaves (21), the top first counterweight deflecting sheaves (23) and the top second counterweight deflecting sheaves (24). The outer end of the wire rope (11) is fixedly connected to the other side of the top of the inner cavity of the hoistway.

2. The elevator with a multi-pair weight device according to claim 1, characterized in that: The number of the top second counterweight deflecting sheaves (24) is one.

3. The elevator with a multi-pair weight device according to claim 1, characterized in that: The number of the top second counterweight deflecting sheaves (24) is multiple.

4. The elevator of a multi-pair weight device according to claim 1, characterized in that: The car (1) is a single-opening box body or a double-opening box body.

5. The elevator of a multi-pair weight device according to claim 1, characterized in that: The car (1) is a four-opening box body.

6. The elevator of a multi-pair weight device according to claim 1, characterized in that: On both side walls of the counterweight device (2), counterweight guide rails (22) are fixed. On the side wall of the counterweight device (2), a counterweight slider adapted to the counterweight guide rail (22) is fixed. The counterweight slider is slidably installed on the outer wall of the counterweight guide rail (22).

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