Novel elevator steel belt locking device assembly

Abstract

The utility model discloses a novel elevator steel belt locking device assembly structure and belongs to the technical field of elevator application. The elevator anti-loosening device assembly is composed of a steel belt rope head combination, a rope head plate, a rope head height detection plate, a hook plate, a switch beating plate fixing base, a switch beating plate, a switch base and an automatic switch. The safety of the steel belt elevator can be effectively improved, elevator users and maintenance personnel are better protected, and accidents caused by loosening of the steel belt are reduced.

Description

Technical Field

[0001] This utility model relates to an anti-loosening device assembly for elevator steel belts. The assembly is installed on the elevator steel belt rope head plate and prevents the steel belt from loosening during operation through mechanical fastening or detection devices, thereby improving the safety of elevator operation. It belongs to the field of elevator application technology. Background Technology

[0002] Currently, with the acceleration of urbanization and the increasing number of high-rise buildings, elevators, as an important tool for vertical transportation, have seen their safety and operational reliability become key factors in elevator design and maintenance. In recent years, steel belts have been widely used as elevator suspension devices, gradually replacing traditional steel wire ropes. Compared to traditional steel wire ropes, steel belts offer advantages such as light weight, long service life, simple maintenance, and small guide wheel diameter. Furthermore, their excellent frictional properties contribute to improved elevator operating efficiency and comfort. However, during long-term operation, steel belts are susceptible to unintended loosening or elongation due to factors such as installation accuracy, uneven load, vibration, impact, and temperature and humidity. This can lead to stress imbalance, operational deviations, or abnormal wear, ultimately affecting the stability and safety of the entire elevator system.

[0003] Currently, to prevent steel belt loosening, some elevator systems are equipped with sensors or limit structures at the ends of the steel belt to monitor its condition. However, these devices generally suffer from complex structures, cumbersome debugging, and difficult maintenance. Some monitoring devices also fail to respond promptly, unable to immediately shut off elevator operation, posing significant safety hazards. National standards have clearly mandated that steel belt elevators must be equipped with anti-loosening devices to ensure the steel belt remains under proper tension during operation and prevent accidents caused by slack. Therefore, designing a compact, responsive, easy-to-install anti-loosening device suitable for different elevator steel belt structures has significant practical and engineering application value. Utility Model Content

[0004] To address the above shortcomings, this utility model provides a novel elevator steel belt anti-loosening device component structure, designed to monitor steel belt elongation or loosening issues that occur during elevator operation. To achieve the above objective, this utility model employs the following technical solution:

[0005] A novel elevator steel belt anti-loosening device assembly comprises a steel belt rope head assembly, a rope head plate, a rope head height detection plate, a hook plate, a switch plate fixing seat, a switch plate, a switch seat, and an automatic switch. Its key feature is that the steel belt rope head assembly consists of a nut, a screw, a spring, and a rope sleeve, which passes through mounting holes on the rope head plate and is fixed thereon. One end of the rope head height detection plate is fixed between two nuts on the steel belt rope head assembly, and the other end is connected to the hook plate via a bolt assembly. The switch plate fixing seat is fixed to a threaded hole on the rope head plate via bolts. One end of the switch plate is fixed to the switch plate fixing seat, and the other end passes through a pre-drilled rectangular hole in the switch seat. The switch seat is fixed to the threaded hole on the rope head plate, and the automatic switch is fixed to the switch seat. The steel belt rope head assembly contains a spring structure that can sense the stress state of the steel belt in real time. When the stress on the steel belt changes, the spring displaces accordingly, causing the rope head height detection plate and the hook plate to move up and down, thereby triggering the switch plate to activate. Through the cooperation of the switch plate and the automatic switch, the elevator safety circuit is cut off.

[0006] Furthermore, the steel strip rope head assembly includes a nut, a screw, a spring, and a rope sleeve assembly, which are disposed in the mounting holes of the rope head plate. The steel strip rope head assembly is subjected to pressure from the car. Under normal operating conditions, the spring is in a compressed state, driving the rope head height detection plate and hook plate to move downward. When the steel strip experiences reduced force due to operating fatigue or loosening, the spring releases, pushing the detection plate and hook plate upward, thereby driving subsequent actions.

[0007] Furthermore, one end of the rope end height detection plate is installed between the two nuts of the steel strip rope end assembly, and the other end is connected to the hook plate via a bolt assembly. Each steel strip rope end assembly is equipped with one rope end height detection plate and one hook plate to independently monitor the stress state of each steel strip, ensuring detection accuracy and reliability.

[0008] Furthermore, the hook plate and the detection plate are connected by an elongated hole, facilitating fine-tuning during installation. The hook plate is positioned below the movement path of the switch plate; when the hook plate moves upward due to the loosening of the steel strip, it will cause the switch plate to lift.

[0009] Furthermore, the switch plate mounting base is fixed to the threaded hole of the rope end plate by bolts. One end of the switch plate is connected to the mounting base by a double nut bolt assembly and can rotate freely, while the other end passes through the rectangular hole reserved in the switch base to trigger the automatic switch installed thereon.

[0010] Furthermore, the automatic switch is fixed to the switch base with screws and connected to the elevator safety circuit. When the switch plate is lifted by the action of the hook plate, it triggers the automatic switch to immediately stop the elevator operation and prevent further damage to the steel belt or the spread of the fault.

[0011] Furthermore, all components are connected using standard bolts, making installation convenient and highly adaptable, suitable for a wide range of steel belt elevators of different models and structures. Its compact structure and simple manufacturing process facilitate subsequent inspection and replacement, improving maintenance efficiency.

[0012] Furthermore, this device does not rely on a complex electronic control system. It achieves real-time feedback and response of the steel belt status through a purely mechanical structure, which has the advantages of low cost and high reliability. It is suitable for new elevators and the renovation and upgrading of existing elevator systems.

[0013] Furthermore, the component is mounted on the car rope head plate or counterweight rope head plate, which is easily observable and operable from the top of the elevator. When the elevator is unloaded, the sensitivity can be adjusted by setting the initial distance between the hook plate and the switch plate to ensure the device activates even with slight loosening of the steel belt. Attached Figure Description

[0014] Figure 1 This is a structural diagram of a new type of elevator steel belt anti-loosening device assembly (steel belt in normal state).

[0015] Figure 2 This is a structural diagram of a new type of elevator steel belt anti-loosening device assembly (steel belt elongation state).

[0016] Figure 3 Diagram of steel strip rope head assembly;

[0017] Figure 4 Diagram of the rope end plate;

[0018] Figure 5 Diagram of rope end height detection board;

[0019] Figure 6 This is a diagram of a hook plate;

[0020] Figure 7 Diagram of switch plate mounting bracket;

[0021] Figure 8 Diagram of the switch board;

[0022] Figure 9 Diagram of switch socket;

[0023] Figure 10 Diagram of automatic switch;

[0024] In the diagram: 1. Steel strip rope head assembly, 101. Nut, 102. Spring, 103. Screw, 104. Rope loop, 2. Rope head plate, 3. Rope head height detection plate, 4. Hook plate, 5. Switch plate fixing seat, 6. Switch plate, 7. Switch seat, 8. Automatic switch. Detailed Implementation

[0025] like Figures 1 to 10As shown, a novel elevator steel belt anti-loosening device assembly structure includes: a steel belt rope head assembly 1 (nut 101, spring 102, screw 103, rope sleeve 104), a rope head plate 2, a rope head height detection plate 3, a hook plate 4, a switch plate fixing seat 5, a switch plate 6, a switch seat 7, and an automatic switch 8. The steel belt rope head assembly 1 (composed of nut 101, screw 102, spring 103, and rope sleeve 104) passes through mounting holes on the rope head plate 2 and is fixed to the rope head plate 2. The number of steel belt rope head assemblies 1 is determined by the number of steel belts. One end of the rope head height detection plate 3 is fixed between two nuts of the steel belt rope head assembly 1, and the other end is connected to the hook plate 4 using two sets of M6×20 bolt assemblies. Each steel belt rope head assembly 1 is equipped with one rope head height detection plate 3 and one hook plate 4. The switch plate fixing base 5 is fixed to the threaded hole of the rope end plate 2 with two M6×15 bolts; one end of the switch plate 6 is fixed to the switch plate fixing base 5 with a set of M6×20 double nut bolts, ensuring that the switch plate 6 can rotate freely after fixing, and the other end passes through the rectangular hole reserved in the switch base 7; the switch base 7 is fixed to the threaded hole of the rope end plate 2 with two M6×15 bolts; the automatic switch 8 is fixed to the switch base 7 with two M4×35 screws.

[0026] After all parts are installed, adjust the distance between the automatic switch 8 and the switch plate 6 to 4-6mm. It is also necessary to adjust the distance between the switch plate 6 and the hook plate 4 according to the position of the steel rope head assembly 1 when the elevator is unloaded. The distance is adjusted by the elongated hole on the hook plate 4 and the rope head height detection plate 3. Note that the hook plate 4 is installed below the switch plate 6, and the automatic switch 8 needs to be connected to the elevator safety circuit.

Claims

1. A novel elevator steel belt anti-loosening device assembly, comprising a steel belt rope end assembly, a rope end plate, a rope end height detection plate, a hook plate, a switch plate fixing seat, a switch plate, a switch seat, and an automatic switch, characterized in that... The steel strip rope head assembly consists of a nut, a screw, a spring, and a rope sleeve. It passes through the mounting holes on the rope head plate and is fixed to the rope head plate. One end of the rope head height detection plate is fixed between the two nuts of the steel strip rope head assembly, and the other end is connected to the hook plate through a bolt assembly. The switch plate fixing seat is fixed to the threaded hole of the rope head plate by bolts. One end of the switch plate is fixed to the switch plate fixing seat, and the other end passes through the rectangular hole reserved in the switch seat. The switch seat is fixed to the threaded hole of the rope head plate, and the automatic switch is fixed to the switch seat.

2. The novel elevator steel belt anti-loosening device assembly as described in claim 1, characterized in that, The number of steel strip rope head assemblies is determined by the number of steel strips, and each steel strip rope head assembly is equipped with one rope head height detection plate and one hook plate.

3. The novel elevator steel belt anti-loosening device assembly as described in claim 1, characterized in that, The switch plate mounting base is fixed to the threaded hole of the rope end plate by two M6×15 bolts. One end of the switch plate is fixed to the switch plate mounting base by a set of M6×20 double nut bolts. After fixing, the switch plate can rotate freely. The switch base is fixed to the threaded hole of the rope end plate by two M6×15 bolts. The automatic switch is fixed to the switch base by two M4×35 screws.

4. The novel elevator steel belt anti-loosening device assembly as described in claim 1, characterized in that, The distance between the automatic switch and the switch plate is adjusted to 4-6mm. When the elevator is unloaded, the distance between the switch plate and the hook plate is adjusted according to the position of the steel rope head assembly. The distance is adjusted by the elongated hole on the hook plate and the rope head height detection plate. The hook plate is installed below the switch plate, and the automatic switch is connected to the elevator safety circuit.

5. The novel elevator steel belt anti-loosening device assembly as described in claim 1, characterized in that, The steel strip rope head assembly is subjected to pressure from the car, and the spring is compressed, which drives the rope head height detection plate and hook plate to move downward. The distance between the hook plate and the switch plate increases, so the switch plate will not be activated, the automatic switch will not be activated, and the elevator will operate normally.

6. The novel elevator steel belt anti-loosening device assembly as described in claim 1, characterized in that, When the elevator steel belt stretches or loosens, the force on the steel belt rope head assembly decreases, the spring stretches, and drives the rope head height detection plate and hook plate to move upward. The gap between the hook plate and the switch plate disappears, and the hook plate drives the switch plate to move upward. The switch plate touches the automatic switch, the automatic switch is activated, the elevator safety circuit is disconnected, and the elevator stops running.

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