Anti-breaking detection device for steel wire rope of elevator

Abstract

The utility model discloses an elevator steel wire rope anti-breaking detection device and belongs to the technical field of elevator parts. Which comprises a support assembly, a screw rod and a detection switch, a plurality of steel wire ropes in an elevator system are respectively fixed on rope heads corresponding to the steel wire ropes, and is characterized in that the rope heads and the screw rod are vertically fixed on a rope head beam, the support assembly comprises a fixed support and a trigger plate, the fixed support is fixed on the screw rod, and the trigger plate is arranged on the fixed support. The detection switch is installed on the fixing support, one end of the trigger plate is rotationally connected with the fixing support, the other end of the trigger plate is in lap joint with the fixing support in a normal state, and when a steel wire rope is abnormal, a rope head rod in the rope head pushes the trigger plate under the action of a spring of the rope head rod, so that the trigger plate rotates and is separated from lap joint with the fixing support. And the detection switch is upwards triggered to act. The device has the advantages of firm structure, accurate detection, convenient orientation arrangement, flexible adjustment of size and height according to actual scenes, and strong applicability.

Description

Technical Field

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

[0002] With the advancement of technology and the development of society, there are more and more high-rise buildings, and elevators, as an indispensable vertical transportation tool in high-rise buildings, have brought great convenience to people's work and life.

[0003] Steel wire rope is one of the most important components of an elevator. To ensure its safety, elevator systems are equipped with devices to detect problems such as broken wires, broken strands, broken ropes, or rope slippage. These devices can detect potential risks in advance and promptly notify maintenance personnel. However, the existing installation structure of these detection devices is not stable or secure enough. Vibrations during elevator operation may affect the detection device, leading to misjudgments, inconvenience for passengers, and increased workload for maintenance personnel.

[0004] In view of the aforementioned existing technology, it is necessary to make reasonable improvements to the existing elevator wire rope anti-breakage detection device. To this end, the applicant has made a beneficial design, and the technical solution described below arises from this background. Utility Model Content

[0005] The purpose of this utility model is to provide an elevator wire rope anti-breakage detection device, which has a robust structure, accurate detection, convenient positioning, and its size and height can be flexibly adjusted according to the actual scenario, making it highly applicable.

[0006] The present invention accomplishes its objective as follows: An elevator wire rope anti-breakage detection device includes a support assembly, a screw, and a detection switch. Several wire ropes in the elevator system are respectively fixed to their corresponding rope ends. The device is characterized in that: the rope ends and the screw are vertically fixed to a rope end beam; the support assembly includes a fixed bracket and a trigger plate; the fixed bracket is fixed to the screw; the detection switch is mounted on the fixed bracket; one end of the trigger plate is rotatably connected to the fixed bracket, and the other end is normally attached to the fixed bracket; when the wire rope malfunctions, the rope end rod in the rope end, under the action of its spring, pushes the trigger plate, causing the trigger plate to rotate and disengage from the fixed bracket, thus triggering the detection switch upwards.

[0007] In a specific embodiment of this utility model, the trigger plate includes a rope end fitting plate and a switch fitting plate. The rope end fitting plate is rotatably connected to the fixed bracket and faces the rope end. The switch fitting plate is bent downward relative to the rope end fitting plate. When the wire rope breaks or before it breaks, the switch fitting plate is lifted upward by the push of the rope end, thereby triggering the detection switch action.

[0008] In another specific embodiment of this utility model, the lower end of the switch mating plate is attached to the fixed bracket in the normal state.

[0009] In another specific embodiment of this utility model, one end of the screw is fixed to the rope head beam and located on both sides of the rope head, and a thread is machined on the other end of the screw. The threaded section of each screw is clamped and fixed by two nuts, and the middle part of the screw is a prism.

[0010] In another specific embodiment of this utility model, two screws are provided on each side of the rope head.

[0011] In another specific embodiment of this utility model, one end of the fixed bracket is bent downward to form a first support plate that is rotatably connected to the trigger plate, and the other end of the fixed bracket is bent downward to form a second support plate for the fixed installation of the detection switch. The lower end of the second support plate is then bent towards the rope end to form a mounting plate. Under normal circumstances, the lower end of the switch mating plate is attached to the mounting plate.

[0012] In a further specific embodiment of this utility model, the trigger plate and the fixed bracket are rotatably connected by a hinge.

[0013] The present invention, due to the aforementioned structure, has the following advantages: First, the detection device described in this invention can promptly and accurately feed back information to the control system when or before the elevator wire rope breaks, allowing the control system to stop the elevator for repair. The fixed bracket is stably fixed to the screw rod by four sets of nuts. The trigger plate overlaps the bent plate of the fixed bracket during normal use of the wire rope, preventing it from detaching downwards due to gravity after prolonged use. The entire structure is robust, has a long service life, and ensures measurement accuracy. Second, it is easy to install and disassemble. The installation height of the bracket assembly can be adjusted via the screw rod, avoiding the problem of the detection device not fitting when the rope end is too high. Third, it has a wide range of applications. If the elevator system uses more wire ropes, the size of the bracket assembly can be easily adjusted to accommodate more rope end configurations; that is, the size and height can be flexibly adjusted according to the actual scenario. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the wire rope anti-breakage detection device of this utility model in normal condition;

[0015] Figure 2 This is a schematic diagram of the wire rope anti-breakage detection device of the present invention in the state of rope breakage.

[0016] Figure 3 This is a top view of the bracket assembly described in this utility model.

[0017] In the diagram: 1. Support assembly, 11. Fixed support, 111. First support plate, 112. Second support plate, 113. Mounting plate, 12. Trigger plate, 121. Rope end mating plate, 122. Switch mating plate, 13. Hinge; 2. Screw; 3. Detection switch; 4. Rope end, 41. Rope end rod, 42. Spring; 5. Wire rope; 6. Rope end beam. Detailed Implementation

[0018] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. However, the applicant's description of the embodiments is not a limitation on the technical solution. Any formal but not substantive changes based on the concept of this utility model should be considered within the scope of protection of this utility model.

[0019] In the following description, all directional or orientational concepts involving up, down, left, right, front, and back are based on the positions shown in the corresponding figures, and therefore should not be construed as a special limitation on the technical solution provided by this utility model.

[0020] Please see Figure 1 This utility model relates to an elevator wire rope anti-breakage detection device, including a bracket assembly 1, a screw 2, and a detection switch 3. Several wire ropes 5 in the elevator system are respectively fixed to their corresponding rope ends 4. The rope ends 4 and the screw 2 are vertically fixed to the rope end beam 6. The bracket assembly 1 includes a fixed bracket 11 and a trigger plate 12. The fixed bracket 11 is fixed to the screw 2. The detection switch 3 is installed on the fixed bracket 11. One end of the trigger plate 12 is rotatably connected to the fixed bracket 11, and the other end overlaps the fixed bracket 11 in the normal state. When the wire rope 5 is abnormal, the rope end rod 41 in the rope end 4 pushes the trigger plate 12 under the action of its spring 42, causing the trigger plate 12 to rotate and disengage from the fixed bracket 11, and triggering the detection switch 3 to operate upward.

[0021] The trigger plate 12 includes a rope end mating plate 121 and a switch mating plate 122. The rope end mating plate 121 is rotatably connected to the fixed bracket 11 and faces the rope end 4. The switch mating plate 122 is bent downward relative to the rope end mating plate 121. When or before the wire rope breaks, the switch mating plate 122 is pushed upward by the rope end 4, thereby triggering the detection switch 3. The lower end of the switch mating plate 122 rests on the fixed bracket 11 in the normal state.

[0022] like Figure 1 and Figure 3As shown, one end of the screw 2 is fixed to the rope head beam 6 and located on both sides of the rope head 4. To increase the stability of the bracket assembly 1 during installation, two screws 2 are provided on each side of the rope head 4. A thread is machined on the other end of the screw 2, and the bracket 11 is clamped and fixed on the threaded section of each screw 2 by two nuts. That is, the bracket 11 is stably fixed to the screw 2 by four sets of nuts. The middle part of the screw 2 is a prism, which facilitates the use of a wrench to install the screw 2.

[0023] One end of the fixed bracket 11 is bent downward to form a first support plate 111 that is rotatably connected to the trigger plate 12. In this embodiment, the trigger plate 12 and the first support plate 111 are rotatably connected by a hinge 13. The other end of the fixed bracket 11 is bent downward to form a second support plate 112 for the detection switch 3 to be fixedly installed. The lower end of the second support plate 112 is then bent towards the rope end 4 to form a mounting plate 113. Under normal circumstances, the lower end of the switch mating plate 122 rests on the mounting plate 113 to prevent the trigger plate 12 from falling off downward due to gravity after long-term use.

[0024] Please continue reading. Figure 1 and Figure 2 The working principle of the elevator wire rope anti-breakage detection device described in this utility model is as follows:

[0025] When one of the steel wire ropes 2 breaks, the corresponding rope end 4 loses its downward tension. The spring 42 on the rope end 4 changes from a taut state to a relaxed state, causing the rope end rod 41 to lift upwards and strike the trigger plate 12. The trigger plate 12 rotates, and the switch mating plate 122 touches the detection switch 3. After the detection switch 3 is activated, it sends a fault information to the elevator control system, and the elevator reports a fault. In this technical solution, the detection device is firmly installed and the detection is accurate. The screw 2 can be set to adjust the installation height of the bracket assembly to prevent the rope end from being too high and unable to be installed.

Claims

1. An elevator steel wire rope breakage prevention detection device, comprising a bracket assembly (1), a screw rod (2), a detection switch (3), and a plurality of steel wire ropes (5) in an elevator system are respectively fixed on corresponding rope heads (4), characterized in that: The rope head (4) and the screw rod (2) are vertically fixed on the rope head beam (6), the support assembly (1) comprises a fixed support (11) and a trigger plate (12), the fixed support (11) is fixed on the screw rod (2), the detection switch (3) is installed on the fixed support (11), one end of the trigger plate (12) is rotationally connected with the fixed support (11), and the other end is overlapped on the fixed support (11) in a normal state, when the steel wire rope (5) is abnormal, the rope head rod (41) in the rope head (4) pushes the trigger plate (12) under the action of the spring (42) thereof, the trigger plate (12) is rotated and separated from the overlap with the fixed support (11), and the detection switch (3) is triggered to act upward.

2. The elevator steel wire rope break detection device according to claim 1, characterized by: The trigger plate (12) comprises a rope head matching plate (121) and a switch matching plate (122), the rope head matching plate (121) is rotationally connected with the fixed support (11) and faces the rope head (4), and the switch matching plate (122) is bent downward relative to the rope head matching plate (121), when the steel wire rope is broken or before the steel wire rope is broken, the switch matching plate (122) is lifted upward under the pushing of the rope head (4), so that the detection switch (3) is triggered to act.

3. The elevator steel wire rope break detection device according to claim 2, characterized in that: The lower end of the switch matching plate (122) is overlapped on the fixed support (11) in a normal state.

4. The elevator steel wire rope break detection device according to claim 1, characterized by: One end of the screw rod (2) is fixed on the rope head beam (6) and located on both sides of the rope head (4), a threaded section is formed on the other end of the screw rod (2), two nuts are used to clamp the fixed support (11) on the threaded section of each screw rod (2), and the middle part of the screw rod (2) is a prism.

5. The elevator steel wire rope break detection device according to claim 4, characterized in that: Two screw rods (2) are arranged on each side of the rope head (4).

6. The elevator steel wire rope break detection device according to claim 4, characterized by: One end of the fixed support (11) is bent downward to form a first support plate (111) rotationally connected with the trigger plate (12), the other end of the fixed support (11) is bent downward to form a second support plate (112) for fixedly installing the detection switch (3), and the lower end of the second support plate (112) is bent toward the rope head (4) to form an overlap plate (113), the lower end of the switch matching plate (122) is overlapped on the overlap plate (113) in a normal state.

7. The elevator steel wire rope break detection device according to claim 1, characterized by: The trigger plate (12) and the fixed support (11) are rotationally connected through a hinge (13).

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