An elevator structure

Abstract

The utility model is suitable for the field of elevator, provide a kind of elevator structure, including the lifting basket of being installed in frame structure, counterweight mechanism and the motor of being installed in the bottom end of frame structure;Lifting basket and counterweight mechanism are through cable to form closed loop system, and the ascending or descending of lifting basket is driven on closed loop system by motor. By this, the device can save the top space in lifting shaft, reduce the bearing of frame;In the installation aspect, it can save hoisting and save working hours, reduce installation difficulty. At the same time in maintenance aspect, maintenance personnel need not climb high to carry out electrical equipment maintenance, and most maintenance operations can be completed on the ground, and process is safe and efficient.

Description

Technical Field

[0001] This utility model applies to the field of hoists and provides a hoist structure. Background Technology

[0002] A hoist is a type of equipment widely used in various vertical transportation systems. It is mainly used to lift goods or people and is commonly found in elevators, lifts, and other similar applications.

[0003] In traditional top-mounted hoists, the installation of the motor and drive unit requires sufficient space at the top to support the weight of the equipment, and the structure at the top of the hoistway often needs special reinforcement to ensure the stability of the equipment. This approach not only increases the structural cost of the building but also brings considerable difficulties to installation and maintenance. During installation, large hoisting equipment is needed to lift the equipment to the top, resulting in a long construction period and certain safety risks associated with working at height. During maintenance, operators need to climb to the top for inspection and repair, creating a complex working environment and posing safety hazards. Summary of the Invention

[0004] In view of the above-mentioned defects, the purpose of this utility model is to provide a hoist structure to solve the problems mentioned in the background art. The device includes a hoisting basket installed in the frame structure, a counterweight mechanism, and an electric motor installed at the bottom of the frame structure. The lifting basket and the counterweight mechanism form a closed-loop system via steel cables. The lifting basket is raised or lowered by an electric motor within the closed-loop system.

[0005] The closed-loop system consists of: the lifting basket, the counterweight mechanism, the first steel cable, and the second steel cable; one end of the first steel cable is fixed to the top of the lifting basket, and the other end is fixed to the top of the counterweight mechanism; one end of the second steel cable is fixed to the bottom of the lifting basket, and the other end is fixed to the bottom of the counterweight mechanism.

[0006] It also includes a pulley system composed of several fixed pulleys; the pulley system includes a first fixed pulley, a second fixed pulley, a fifth fixed pulley and a sixth fixed pulley installed on the top of the frame structure, and a third fixed pulley and a fourth fixed pulley installed on the bottom of the frame structure; The first and sixth fixed pulleys are located above the position corresponding to the motor; the fourth and fifth fixed pulleys are located below and above the position corresponding to the counterweight mechanism, respectively; the second and third fixed pulleys are located above and below the position corresponding to the lifting basket, respectively.

[0007] Furthermore, the first steel cable at the top of the lifting basket is sequentially reversed by the second fixed pulley and the first fixed pulley, and installed at the output end of the motor. Then, the first steel cable is sequentially reversed upward by the sixth fixed pulley and the fifth fixed pulley, and the end is fixedly connected to the top of the counterweight mechanism. The second steel cable at the bottom of the counterweight mechanism is reversed downwards by the fourth and third fixed pulleys in sequence, and its end is fixedly connected to the bottom of the lifting basket.

[0008] Furthermore, the frame structure is a frame structure made of steel profiles.

[0009] This utility model has the following beneficial effects: 1. Significantly reduces the load-bearing requirements on the top of the shaft; traditional top-mounted layouts require sufficient space at the top to suspend motors, drives, etc., while ground-mounted layouts transfer all this weight to the ground, eliminating the need for special reinforcement of the rack top structure. The advantages are extremely obvious, saving a significant amount of structural reinforcement costs.

[0010] 2. Easy installation, saving time and costs: The ground-level layout allows all heavy equipment, such as motors and control cabinets, to be installed on the ground floor, eliminating the need for large hoisting equipment to lift them to the roof. This simplifies the installation process, shortens the construction period, and reduces the risks and costs of working at heights.

[0011] 3. Maintenance is extremely convenient and safe; maintenance personnel can perform all routine inspections, lubrication, adjustments, and repairs at the surface level without having to climb to the top of the narrow and dangerous shaft. Emergency response and handling are also faster.

[0012] 4. In terms of performance, because the wire rope has a larger wrap angle on the drive wheel, it can provide better traction and transmission efficiency, and the operation is more stable.

[0013] 5. In terms of emergency safety, the elevator will stop when an emergency causes a power outage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the device; Figure 2 This is a schematic diagram of the operating principle; In the diagram: 01-Motor; 02-Lifting basket; 03-Counterweight mechanism; 1-First fixed pulley; 2-Second fixed pulley; 3-Third fixed pulley; 4-Fourth fixed pulley; 5-Fifth fixed pulley; 6-Sixth fixed pulley. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0019] See appendix Figure 1 and attached Figure 2 The purpose of this utility model is to provide a hoisting machine structure, including a hoisting basket 02 installed in the frame structure, a counterweight mechanism 03, and a motor installed at the bottom of the frame structure; the hoisting basket 02 and the counterweight mechanism 03 form a closed loop system through steel cables, and the hoisting basket 02 is driven to rise and fall by the motor 01 in the closed loop system.

[0020] This embodiment uses a frame structure made of structural steel as an example. It is worth noting that most existing lifting mechanisms are traditional "top-mounted" motor hoists, meaning the motor is installed at the top of the frame structure. Specifically, the closed-loop system consists of: a lifting basket 02, a counterweight mechanism 03, a first steel cable, and a second steel cable; one end of the first steel cable is fixed to the top of the lifting basket 02, and the other end is fixed to the top of the counterweight mechanism 03; one end of the second steel cable is fixed to the bottom of the lifting basket 02, and the other end is fixed to the bottom of the counterweight mechanism 03.

[0021] This hoist uses a counterweight mechanism 03 and a lifting basket 02 for gravity balance. When the counterweight mechanism 03 is driven by the motor 01 to rise or fall, the lifting basket 02 will rise or fall accordingly.

[0022] Example 1 This hoist also includes a pulley system composed of several fixed pulleys. The pulley system includes a first fixed pulley 1, a second fixed pulley 2, a fifth fixed pulley 5, and a sixth fixed pulley 6 installed at the top of the frame structure, and a third fixed pulley 3 and a fourth fixed pulley 4 installed at the bottom of the frame structure. The first fixed pulley 1 and the sixth fixed pulley 6 are located above the position corresponding to the motor 01; the fourth fixed pulley 4 and the fifth fixed pulley 5 are located below and above the position corresponding to the counterweight mechanism 03, respectively; the second fixed pulley 2 and the third fixed pulley 3 are located above and below the position corresponding to the lifting basket 02, respectively.

[0023] This hoist is also equipped with multiple steel cables that cooperate with various fixed pulleys. Specifically, one end of the first steel cable is fixedly connected to the top of the lifting basket 02, passes through the second fixed pulley 2 and the first fixed pulley 1 in sequence, and is then installed at the output end of the motor 01, which provides power. Subsequently, the first steel cable is reversed upward by the sixth fixed pulley 6 and the fifth fixed pulley 5 in sequence, and the end of the first steel cable away from the lifting basket 02 is fixedly connected to the top of the counterweight mechanism 03.

[0024] The bottom of the counterweight mechanism 03 is fixedly connected to one end of the second steel cable. The second steel cable is reversed downward by the fourth fixed pulley 4 and the third fixed pulley 3 in sequence, and the end away from the bottom of the counterweight mechanism 03 is fixedly connected to the bottom of the lifting basket 02.

[0025] In summary, in actual use, the counterweight mechanism 03 provides gravity balance with the lifting basket 02. When the motor 01 runs, it drives the counterweight mechanism 03 and the lifting basket 02 to move, thereby realizing the lifting work.

[0026] This solution abandons that setup. This hoist uses a ground-mounted motor configuration, also known as a "bottom-mounted" or "ground-mounted" motor hoist. Compared to the traditional top-mounted configuration, this offers a series of significant advantages in specific application scenarios: 1. Significantly reduces the load-bearing requirements on the top of the shaft; traditional top-mounted layouts require sufficient space at the top to suspend motors, drives, etc., while ground-mounted layouts transfer all this weight to the ground, eliminating the need for special reinforcement of the rack top structure. The advantages are extremely obvious, saving a significant amount of structural reinforcement costs.

[0027] 2. Easy installation, saving time and costs: The ground-level layout allows all heavy equipment, such as motors and control cabinets, to be installed on the ground floor, eliminating the need for large hoisting equipment to lift them to the roof. This simplifies the installation process, shortens the construction period, and reduces the risks and costs of working at heights.

[0028] 3. Maintenance is extremely convenient and safe; maintenance personnel can perform all routine inspections, lubrication, adjustments, and repairs at the surface level without having to climb to the top of the narrow and dangerous shaft. Emergency response and handling are also faster.

[0029] 4. In terms of performance, because the wire rope has a larger wrap angle on the drive wheel, it can provide better traction and transmission efficiency, and the operation is more stable.

[0030] 5. In terms of emergency safety, if the power is interrupted in an emergency, the elevator will stop, and rescuers can directly access the drive equipment on the ground floor to manually operate the trolley to release the trapped personnel.

[0031] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A hoist structure, characterized in that, It includes a lifting basket (02) installed inside the frame structure, a counterweight mechanism (03) and an electric motor (01) installed at the bottom of the frame structure. The lifting basket (02) and the counterweight mechanism (03) form a closed-loop system through steel cables. The lifting basket (02) is driven to rise or fall by the electric motor (01) in the closed-loop system. The closed-loop system consists of: the lifting basket (02), the counterweight mechanism (03), the first steel cable, and the second steel cable; one end of the first steel cable is fixed to the top of the lifting basket (02), and the other end is fixed to the top of the counterweight mechanism (03); one end of the second steel cable is fixed to the bottom of the lifting basket (02), and the other end is fixed to the bottom of the counterweight mechanism (03); It also includes a pulley system composed of several fixed pulleys; the pulley system includes a first fixed pulley (1), a second fixed pulley (2), a fifth fixed pulley (5) and a sixth fixed pulley (6) installed on the top of the frame structure, and a third fixed pulley (3) and a fourth fixed pulley (4) installed on the bottom of the frame structure. The first fixed pulley (1) and the sixth fixed pulley (6) are located above the position corresponding to the motor (01); the fourth fixed pulley (4) and the fifth fixed pulley (5) are located below and above the position corresponding to the counterweight mechanism (03), respectively; the second fixed pulley (2) and the third fixed pulley (3) are located above and below the position corresponding to the lifting basket (02), respectively.

2. The hoist structure according to claim 1, characterized in that, The first steel cable at the top of the lifting basket (02) passes through the second fixed pulley (2) and the first fixed pulley (1) in sequence and is installed at the output end of the motor (01). Then the first steel cable is reversed upward by the sixth fixed pulley (6) and the fifth fixed pulley (5) in sequence, and the end is fixedly connected to the top of the counterweight mechanism (03). The second steel cable at the bottom of the counterweight mechanism (03) is reversed downwards by the fourth fixed pulley (4) and the third fixed pulley (3) in sequence, and its end is fixedly connected to the bottom of the lifting basket (02).

3. The hoist structure according to claim 1, characterized in that, The frame structure is a frame structure made of steel profiles.

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