Automatic door opening and closing structure of intelligent construction hoist

Abstract

The utility model provides an automatic door opening and closing structure of an intelligent construction hoist, and relates to the technical field of construction hoists, the automatic door opening and closing structure comprises a car and a car door arranged on the car, a motor is installed in the car, a gear commutator is arranged at the output end of the motor, transmission shafts penetrating through the car are arranged on the two sides of the gear commutator, and the car door is arranged on the car door. A unilateral bearing is arranged at the joint of the transmission shaft and the lift car, a driving gear is arranged at the other end of the transmission shaft, a driving rack is meshed with the outer side of the driving gear, one end of the driving rack is connected with a connecting block at the bottom of the lift car door, and the motor is arranged in the lift car, so that the vertical space occupied by the lift car can be reduced; according to the utility model, the space utilization rate is improved, the installation and maintenance difficulty and the manufacturing cost are reduced, an operator can carry out installation and maintenance under relatively safe and convenient conditions, the erosion of the external environment can be prevented, the service life is prolonged, the maintenance and replacement cost is reduced, and the motor is prevented from being damaged by a collapsed object.

Description

Technical Field

[0001] The utility model relates to the technical field of construction hoists, in particular to an automatic door opening and closing structure for an intelligent construction hoist. Background Technique

[0002] A construction hoist is a vertical transportation device commonly used in construction sites, mainly used to transport personnel and materials to different construction floors. Its main components include guide rails, carriages, motors, drive systems, and control systems, etc. Although construction hoists play an important role in construction, there are still some deficiencies in the prior art. For example, the motor is usually installed on the top of the carriage, this design occupies the vertical space of the carriage, resulting in an increase in the overall structural height. At the same time, the motor installed on the top increases the difficulty of installation and maintenance, requiring complex operations at high altitudes, there are certain safety hazards. In addition, due to the motor being installed on the top of the carriage, the top space cannot be effectively utilized, restricting the load-bearing capacity of materials and personnel, and the weight of the motor also increases the overall weight of the hoist, requiring a higher load requirement for the lifting system. Most construction hoist motors lack effective rain protection design. When used outdoors, the motor is exposed to the external environment and is easily eroded by rainwater, resulting in a decline in motor performance or even damage, increasing the maintenance cost and may cause equipment failures, affecting the construction progress. In addition, the high installation position of the existing construction hoist motor brings many inconveniences to installation and daily maintenance. The installation and disassembly of the motor require professional high-altitude operation equipment and personnel, not only increasing the construction cost, but also increasing the construction risk. Content of the Utility Model

[0003] The purpose of the utility model is to provide an automatic door opening and closing structure for an intelligent construction hoist, to solve the problems of occupying the vertical space of the carriage, requiring complex operations at high altitudes, the top space cannot be effectively utilized, the motor lacks effective rain protection design, inconvenient installation and daily maintenance, and high construction cost mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an automatic door opening and closing structure for an intelligent construction hoist, including a carriage and a carriage door arranged thereon. A motor is installed inside the carriage. A gear commutator is arranged at the output end of the motor. Transmission shafts penetrating the carriage are arranged on both sides of the gear commutator. A single-sided bearing is arranged at the connection between the transmission shaft and the carriage.

[0005] The other end of the transmission shaft is provided with a driving gear, and a driving rack is meshed outside the driving gear. One end of the driving rack is connected with a connecting block at the bottom of the carriage door.

[0006] Preferably, the other end of the driving rack is connected with a counterweight block. Guide chutes are arranged on both sides of the counterweight block and are mounted on the car. A clamping block is arranged at the top of the guide chute.

[0007] Preferably, the driving gear, the driving rack, the connecting block, the counterweight block, the guide chute and the clamping block are all symmetrically arranged about the left and right of the car.

[0008] Preferably, light curtains are mounted on both sides of the inner wall of the car;

[0009] A control box is mounted inside the car;

[0010] A travel switch is arranged below the car door.

[0011] Preferably, rollers mounted on the car are slidably connected to both sides of the car door.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] First, the light curtain can prevent accidents caused by people or objects entering the entrance of the lift, improving the use safety. The control box is responsible for the overall control system management of the lift, including starting and stopping of the motor, speed regulation, direction control, etc., as well as receiving signals from various sensors and switches, monitoring the operating state of the lift, etc. The travel switch can detect the position of the door, control the door opening and closing process, and the elevator can only be started when the door is fully closed.

[0014] Second, by arranging the motor inside the car, the vertical space occupied by the car can be reduced, improving the space utilization rate, reducing the installation and maintenance difficulty and manufacturing cost. It enables the operator to install and maintain under relatively safe and convenient conditions, and can also prevent the erosion of the external environment, extend its service life, reduce the maintenance and replacement cost, prevent falling objects from damaging the motor. The single-side bearing can support the transmission shaft, reduce friction, improve the transmission efficiency, extend the service life. The counterweight block can reduce the burden on the motor, making the door opening and closing smoother. The guide chute can ensure the stable operation of the counterweight block, preventing deviation. The clamping block can prevent the counterweight block from moving excessively, ensuring the system stability. The rollers can make the car door slide on the track, improving the opening and closing efficiency of the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic cross-sectional structure diagram of the car of the present utility model;

[0017] Figure 3 is an enlarged schematic structure diagram at A of the present utility model;

[0018] Figure 4 Schematic diagram of the motor, gear commutator and transmission shaft of the present utility model.

[0019] Reference numerals in the figure: 1, car; 2, car door; 3, motor; 4, gear commutator; 5, transmission shaft; 6, single-sided bearing; 7, drive gear; 8, drive rack; 9, connecting block; 10, counterweight; 11, guiding chute; 12, blocking block; 13, light curtain; 14, control box; 15, travel switch; 16, roller. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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 of 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.

[0021] Please refer to Figures 1-4 As shown, the present utility model provides a technical solution: an automatic door opening and closing structure for an intelligent construction elevator, including a car 1 and a car door 2 provided thereon. A motor 3 is installed inside the car 1. A gear commutator 4 is provided at the output end of the motor 3. Transmission shafts 5 penetrating the car 1 are provided on both sides of the gear commutator 4. A single-sided bearing 6 is provided at the connection between the transmission shaft 5 and the car 1;

[0022] The other end of the transmission shaft 5 is provided with a drive gear 7. A drive rack 8 is engaged outside the drive gear 7. One end of the drive rack 8 is connected to a connecting block 9 at the bottom of the car door 2. By driving the transmission shaft 5 with the motor 3, driving the drive gear 7, and driving the drive rack 8 to lift the connecting block 9, the car door 2 is lifted. The single-sided bearing 6 can support the transmission shaft 5, reduce friction, improve the transmission efficiency, and extend the service life. Installing the motor 3 inside the car 1 can reduce the vertical space occupied by the car 1, improve the space utilization rate, reduce the difficulty of installation and maintenance as well as the manufacturing cost, enable operators to install and maintain under relatively safe and convenient conditions, prevent the erosion of the external environment, extend its service life, reduce the maintenance and replacement costs, and prevent falling objects from damaging the motor 3.

[0023] Furthermore, the other end of the drive rack 8 is connected to a counterweight 10. Guiding chutes 11 installed on the car 1 are provided on both sides of the counterweight 10. Blocking blocks 12 are provided at the top of the guiding chutes 11. The counterweight 10 can reduce the burden on the motor 3 and make the door opening and closing smoother. The guiding chutes 11 can ensure the stable operation of the counterweight 10 and prevent deviation. The blocking blocks 12 can prevent the counterweight 10 from moving excessively and ensure the stability of the system.

[0024] Further, the driving gear 7, the driving rack 8, the connecting block 9, the counterweight 10, the guiding chute 11 and the clamping block 12 are symmetrically arranged about the left and right of the car 1.

[0025] Further, light curtains 13 are installed on both sides of the inner wall of the car 1;

[0026] A control box 14 is installed inside the car 1;

[0027] A travel switch 15 is arranged below the car door 2. The light curtain 13 can prevent accidents caused by people or objects entering the elevator door, improving the use safety. The control box 14 is responsible for the overall control system management of the elevator, including the start and stop of the motor 3, speed regulation, direction control, etc., as well as receiving signals from various sensors and switches, monitoring the operating status of the elevator, etc. The travel switch 15 can detect the position of the door and control the door opening and closing process. The elevator can be started only when the door is completely closed.

[0028] Further, rollers 16 installed on the car 1 are slidably connected to both sides of the car door 2. The rollers 16 can enable the car door 2 to slide on the track, improving the opening and closing efficiency of the door.

[0029] Working principle: First, move an automatic door opening and closing structure of an intelligent construction elevator to the working position. When in use, in the first step, the light curtain 13 detects whether there is an object blocking at the car door 2. In the second step, if it is detected that there is no object blocking, the motor 3 drives the transmission shaft 5 through the gear commutator 4, drives the driving gear 7, and drives the driving rack 8 to lower the car door 2. In the fourth step, when the bottom of the car door 2 touches the travel switch 15, the car 1 is started to rise to the designated floor. In this way, the use process of an automatic door opening and closing structure of an intelligent construction elevator is completed.

[0030] 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. An automatic door opening and closing structure for an intelligent construction elevator, comprising a car (1) and a car door (2) arranged thereon, characterized in that: A motor (3) is installed in the car (1); a gear commutator (4) is provided at the output end of the motor (3); a transmission shaft (5) penetrating the car (1) is provided on both sides of the gear commutator (4); a single-sided bearing (6) is provided at the connection between the transmission shaft (5) and the car (1); The other end of the transmission shaft (5) is provided with a driving gear (7), the outer side of the driving gear (7) is meshed with a driving rack (8), and one end of the driving rack (8) is connected to a connecting block (9) at the bottom of the car door (2).

2. According to claim 1, the automatic door opening and closing structure of an intelligent construction hoist is characterized in that: The other end of the driving rack (8) is connected to a counterweight block (10), and guide slide grooves (11) mounted on the car (1) are arranged on both sides of the counterweight block (10), and a positioning block (12) is arranged on the top of the guide slide groove (11).

3. The automatic door opening and closing structure of an intelligent construction hoist according to claim 2 is characterized in that: The driving gear (7), driving rack (8), connecting block (9), counterweight block (10), guide slide groove (11) and positioning block (12) are all arranged symmetrically with respect to the elevator car (1).

4. The automatic door opening and closing structure of an intelligent construction hoist according to claim 1 is characterized in that: Light curtains (13) are installed on both sides of the inner wall of the car (1); A control box (14) is installed on the inner side of the car (1); A travel switch (15) is provided below the car door (2).

5. The automatic door opening and closing structure of an intelligent construction hoist according to claim 1 is characterized in that: Both sides of the car door (2) are slidably connected to rollers (16) mounted on the car (1).

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