Elevator steel wire rope breakage detection device

Abstract

The utility model belongs to elevator safety monitoring technical field, concretely relates to a kind of elevator steel wire rope loose break detection device, including detection box, the top of the detection box is fixedly installed with baffle, the quantity of baffle is set to two, and it is symmetrical along the vertical central axis of detection box, the surface of the detection box is provided with detection mechanism, the detection mechanism includes one elastic telescopic link, the fixed end of one elastic telescopic link is fixedly installed in the inner wall of detection box, the movable end of one elastic telescopic link is fixedly installed with arc contact plate.The utility model solves when the abnormal situation of steel wire rope appears loose or break, the loose break condition of steel wire rope can be accurately detected, prevent elevator continue to run, reduce other mechanical component damage or elevator system failure due to steel wire rope damage, to reduce maintenance cost and downtime problem, to improve the overall safety efficiency of elevator.

Description

Technical Field

[0001] This utility model belongs to the field of elevator safety monitoring technology, specifically relating to an elevator wire rope slack detection device. Background Technology

[0002] In traditional elevator safety monitoring systems, the condition of wire ropes is typically monitored through regular manual inspections and maintenance. However, manual inspections are not only labor-intensive and inefficient, but also susceptible to human error, leading to the risk of missed or false detections. To improve elevator safety and reduce the probability of malfunctions, intelligent and automated wire rope detection technologies have become a key research focus in recent years.

[0003] Chinese Patent Publication No. CN209210111U discloses a device for detecting the loosening or breakage of an elevator wire rope, comprising: a rope end assembly for fixing the end of the elevator wire rope; and a detection component disposed on the rope end assembly to detect the broken state of the elevator wire rope. The detection component includes a detection switch communicatively connected to an elevator control system, and a mounting bracket that cooperates with the detection switch to place it on the rope end assembly. One end of the mounting bracket is configured to extend into a compression spring of the rope end assembly to trigger the connection state of the detection switch when the rope end assembly undergoes a predetermined displacement.

[0004] Based on the above review of a device for detecting the loosening of elevator wire ropes, the following problems exist: when the wire rope breaks or loosens, the elevator may lose support and fall freely, causing serious casualties and property damage. If the wire rope is not clamped and the elevator is not braked quickly, the elevator may continue to fall, resulting in a major accident. Therefore, we propose a device for detecting the loosening of elevator wire ropes. Utility Model Content

[0005] The purpose of this utility model is to provide an elevator wire rope breakage detection device, which can solve the problem in related technologies that when the wire rope breaks or loosens, the elevator may lose support and fall freely, causing serious casualties and property damage. If the wire rope is not clamped and the elevator is not braked quickly, the elevator may continue to fall, thus causing a major accident.

[0006] The specific technical solution adopted by this utility model is as follows: An elevator wire rope slack detection device includes a detection box. Two baffles are fixedly installed on the top of the detection box and are symmetrically arranged along the vertical central axis of the detection box. A detection mechanism is provided on the surface of the detection box. The detection mechanism includes a first elastic telescopic rod. The fixed end of the first elastic telescopic rod is fixedly installed on the inner wall of the detection box. An arc-shaped contact plate is fixedly installed on the movable end of the first elastic telescopic rod. An L-shaped rod is fixedly installed on the circumferential surface of the movable end of the first elastic telescopic rod. An alarm is fixedly installed on the inner wall of the detection box, and a trigger button is fixedly installed on the rear side of the alarm. The alarm can detect wire rope slack at an early stage, enabling timely repair and replacement, avoiding severe elevator damage due to complete wire rope breakage, thus preventing increased maintenance costs and downtime.

[0007] Preferably, a fixing block is fixedly installed on the front side of the detection box, a fixing end of a motor is fixedly installed on the top of the fixing block, and a rotating shaft is fixedly installed on the output end of the motor.

[0008] Preferably, a reciprocating screw is rotatably mounted on the inner wall of the baffle, the rotating shaft is connected to the reciprocating screw via belt drive, a movable plate is threaded on the circumferential surface of the reciprocating screw, and the reciprocating screw precisely adjusts the clamping force through rotation or reciprocating motion, thereby achieving uniform and stable clamping of the wire rope.

[0009] Preferably, an arc-shaped clamping block is fixedly installed on the rear side of the moving plate, and inclined surfaces are provided at both ends of the moving plate. The number of the first elastic telescopic rod, arc-shaped contact plate, L-shaped rod, alarm, trigger button, reciprocating screw, belt, moving plate and arc-shaped clamping block are each set to two, and are symmetrical along the vertical central axis of the detection box. The arc-shaped clamping block can better adapt to the natural shape of the wire rope and prevent the wire rope from sliding or displacing when under force.

[0010] Preferably, the surface of the detection box is provided with a fixing mechanism, the fixing mechanism including a slide rail, the slide rail is fixedly installed on the left side of the detection box, a lower pressure plate is slidably installed on the surface of the slide rail, and the fixed end of the second elastic telescopic rod is fixedly installed on the surface of the detection box.

[0011] Preferably, a fixing plate is fixedly installed on the movable end of the second elastic telescopic rod, and screws are rotatably installed on the inner wall of the fixing plate. The number of slide rails and lower pressure plates is set to two, and they are symmetrical along the vertical central axis of the detection box. The number of the second elastic telescopic rods and screws is set to several. The fixing plate can make the detection box more stable, ensuring that the device can monitor the status of the wire rope in real time under the correct conditions, and reducing the possibility of false detection and missed detection.

[0012] The technical effects achieved by this utility model are as follows: 1. This utility model, through the setting of the detection mechanism, enables the detection device to immediately trigger an alarm and clamp the steel wire rope when it breaks or loosens, stopping the elevator from continuing to move in the shortest possible time. This effectively prevents the elevator from continuing to operate when the steel wire rope is damaged, avoiding dangerous situations such as elevator loss of control or falling due to steel wire rope failure, greatly improving the overall safety of the elevator and ensuring the safety of passengers.

[0013] 2. With the setting of the fixing mechanism, if the detection box is loose, the contact between the detection mechanism and the wire rope will be unstable, which will affect the accuracy of the detection data. The fixing mechanism can ensure that the detection box always maintains a stable position, providing more accurate and reliable detection results and avoiding false alarms or missed detections due to looseness. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the entire utility model; Figure 2 This is a schematic diagram of the half-section structure of this utility model; Figure 3 This is a schematic diagram of the structure of the No. 1 elastic telescopic rod and the alarm device of this utility model; Figure 4 This is a schematic diagram of the structure at the junction of the motor and the arc-shaped clamping block of this utility model; Figure 5 This is a schematic diagram of the structure of the pressure plate and the fixing plate of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Detection box; 2. Baffle; 3. Detection mechanism; 30. No. 1 elastic telescopic rod; 31. Arc-shaped contact plate; 32. L-shaped rod; 33. Alarm; 34. Trigger button; 35. Fixing block; 36. Motor; 37. Rotating shaft; 38. Reciprocating lead screw; 39. Belt; 310. Moving plate; 311. Arc-shaped clamping block; 4. Fixing mechanism; 40. Slide rail; 41. Lower pressure plate; 42. No. 2 elastic telescopic rod; 43. Fixing plate; 44. Screw. Detailed Implementation

[0016] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0017] like Figure 1-5As shown, an elevator wire rope loosening and breakage detection device includes a detection box 1. A baffle 2 is fixedly installed on the top of the detection box 1. The number of baffles 2 is set to two and is symmetrical along the vertical central axis of the detection box 1. A detection mechanism 3 is provided on the surface of the detection box 1. The detection mechanism 3 includes a first elastic telescopic rod 30. The fixed end of the first elastic telescopic rod 30 is fixedly installed on the inner wall of the detection box 1. An arc-shaped contact plate 31 is fixedly installed on the movable end of the first elastic telescopic rod 30. An L-shaped rod 32 is fixedly installed on the circumferential surface of the movable end of the first elastic telescopic rod 30. An alarm 33 is fixedly installed on the inner wall of the detection box 1. A trigger button 34 is fixedly installed on the rear side of the alarm 33. The alarm 33 can promptly issue an alarm in the early stage of loosening or breaking of the elevator wire rope to remind elevator maintenance personnel or passengers to pay attention. A fixing block 35 is fixedly installed on the front side of the detection box 1. The fixing end of the motor 36 is fixedly installed on the top of the fixing block 35. The output end of the motor 36 is fixedly installed with a rotating shaft 37. A reciprocating screw 38 is rotatably mounted on the inner wall of the baffle 2. The rotating shaft 37 is connected to the reciprocating screw 38 via a belt 39. A movable plate 310 is threaded on the circumferential surface of the reciprocating screw 38. The belt 39 can smoothly transmit power and avoid the impact transmission that may occur in gear transmission. An arc-shaped clamping block 311 is fixedly installed on the rear side of the movable plate 310. The two ends of the movable plate 310 are provided with inclined surfaces. The number of the first elastic telescopic rod 30, arc-shaped contact plate 31, L-shaped rod 32, alarm 33, trigger button 34, reciprocating screw 38, belt 39, movable plate 310 and arc-shaped clamping block 311 are set to two, and are symmetrical along the vertical central axis of the detection box 1. The shape of the arc-shaped clamping block 311 matches the circular cross section of the wire rope, which can distribute the clamping force more evenly. Working Principle: If the steel cable breaks during elevator operation, it may cause the elevator to malfunction and potentially lead to an accident. Therefore, the steel cable needs to be inspected. The steel cable is passed through the groove of the inspection box 1. When the steel cable becomes loose or breaks, it deviates from its original track and moves to the left or right. This deviated steel cable then contacts the arc-shaped contact plate 31, causing it to move. The movement of the arc-shaped contact plate 31 moves the L-shaped rod 32, which then touches the trigger button 34, triggering the alarm 33 to sound an alarm and immediately alerting elevator maintenance personnel. When the alarm 33 is triggered, the motor 36 drives the shaft 37 to rotate. The rotation of the shaft 37 drives the belt 39 to rotate. When the belt 39 rotates, it drives the reciprocating screw 38 to rotate. At this time, when the reciprocating screw 38 rotates, it drives the moving plate 310 to move inward. When the moving plate 310 moves inward, it drives the arc-shaped clamping block 311 to move towards the center to clamp the wire rope. When the wire rope is loose or broken, it may cause the elevator car to fall out of control or impact up and down. Clamping the wire rope can immediately fix the wire rope, prevent the elevator from continuing to move, and ensure passenger safety.

[0018] like Figure 1-5 As shown, a fixing mechanism 4 is provided on the surface of the test box 1. The fixing mechanism 4 includes a slide rail 40, which is fixedly installed on the left side of the test box 1. A lower pressure plate 41 is slidably installed on the surface of the slide rail 40. The fixed end of the second elastic telescopic rod 42 is fixedly installed on the surface of the test box 1. The lower pressure plate 41 can better transmit between instruments. A fixing plate 43 is fixedly installed on the movable end of the second elastic telescopic rod 42. Screws 44 are rotatably installed on the inner wall of the fixing plate 43. The number of slide rails 40 and lower pressure plates 41 are set to two, and they are symmetrical along the vertical central axis of the detection box 1. The number of the second elastic telescopic rod 42 and screws 44 is set to several. The fixing plate 43 evenly distributes pressure, thereby reducing the risk of uneven local contact and avoiding loosening or falling off. Working principle: Since the detection box 1 may be loose during detection, resulting in inaccurate detection, when the moving plate 310 slides, the inclined surface of the moving plate 310 contacts the inclined surface of the lower pressure plate 41, causing the lower pressure plate 41 to move downward through the slide rail 40. At this time, the lower pressure plate 41 contacts the fixed plate 43 and presses the fixed plate 43 downward. When the fixed plate 43 presses downward, it drives the second elastic telescopic rod 42 to press downward, which facilitates the fixation of the detection box 1. During the operation of the elevator, it is affected by vibration, impact and shock. If the detection box 1 is not stable, it may be displaced. This displacement will affect the accuracy and lead to false alarms or missed alarms. The detection box 1 can be kept in the predetermined position to ensure real-time and accurate detection of the wire rope breakage.

[0019] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A device for detecting the slackness of elevator wire ropes, characterized in that: The test box (1) includes a baffle (2) fixedly installed on the top of the test box (1). The number of baffles (2) is set to two and they are symmetrical along the vertical central axis of the test box (1). The surface of the test box (1) is provided with a test mechanism (3). The test mechanism (3) includes a first elastic telescopic rod (30). The fixed end of the first elastic telescopic rod (30) is fixedly installed on the inner wall of the test box (1). An arc-shaped contact plate (31) is fixedly installed at the movable end of the first elastic telescopic rod (30), an L-shaped rod (32) is fixedly installed on the circumferential surface of the movable end of the first elastic telescopic rod (30), an alarm (33) is fixedly installed on the inner wall of the detection box (1), and a trigger button (34) is fixedly installed on the rear side of the alarm (33).

2. The elevator wire rope slack detection device according to claim 1, characterized in that: The front side of the detection box (1) is fixedly installed with a fixing block (35), the top of the fixing block (35) is fixedly installed with the fixing end of the motor (36), and the output end of the motor (36) is fixedly installed with a rotating shaft (37).

3. The elevator wire rope slack detection device according to claim 2, characterized in that: The inner wall of the baffle (2) is rotatably mounted with a reciprocating screw (38), and the rotating shaft (37) is connected to the reciprocating screw (38) by a belt (39). The circumferential surface of the reciprocating screw (38) is threaded with a movable plate (310).

4. The elevator wire rope slack detection device according to claim 3, characterized in that: An arc-shaped clamping block (311) is fixedly installed on the rear side of the movable plate (310). The two ends of the movable plate (310) are provided with inclined surfaces. The number of the first elastic telescopic rod (30), arc-shaped contact plate (31), L-shaped rod (32), alarm (33), trigger button (34), reciprocating screw (38), belt (39), movable plate (310) and arc-shaped clamping block (311) are set to two respectively, and are symmetrical along the vertical central axis of the detection box (1).

5. The elevator wire rope slack detection device according to claim 1, characterized in that: The surface of the test box (1) is provided with a fixing mechanism (4), the fixing mechanism (4) includes a slide rail (40), the slide rail (40) is fixedly installed on the left side of the test box (1), a lower pressure plate (41) is slidably installed on the surface of the slide rail (40), and the fixed end of the second elastic telescopic rod (42) is fixedly installed on the surface of the test box (1).

6. The elevator wire rope slack detection device according to claim 5, characterized in that: The movable end of the second elastic telescopic rod (42) is fixedly installed with a fixing plate (43), and the inner wall of the fixing plate (43) is rotatably installed with screws (44). The number of slide rails (40) and lower pressure plates (41) is set to two, and they are symmetrical along the vertical central axis of the detection box (1). The number of the second elastic telescopic rod (42) and screws (44) is set to several.

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