Elevator rope breakage and looseness detection device and rope head structure

Abstract

The utility model provides an elevator rope breakage and looseness detection device and a rope head structure, and relates to the technical field of elevators, the elevator rope breakage and looseness detection device comprises a detection mechanism, the detection mechanism comprises a trigger part and a detection part arranged on one side of the trigger part, and the trigger part rotates to trigger the detection part when a rope is broken and loosened. The detection mechanism is arranged on one side of the rope head body, the detection mechanism is composed of the trigger part and the detection part, the trigger part rotates to trigger the detection part when the rope is broken and loosened, the broken or loosened sign of the rope can be found in time, an elevator stops, and therefore accidents are avoided, and the elevator running safety is improved; unnecessary replacement is avoided, resources are saved, the operation cost is reduced, the rope head body and the detection mechanism are in one-to-one correspondence, and independent monitoring can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and more specifically, to an elevator rope breakage and slack detection device and a rope end structure. Background Art

[0002] In elevators, ropes such as steel ropes and steel belts are usually used to provide the traction force output from the traction machine to the elevator car or counterweight. To avoid accidents caused by the slack or even breakage of the steel rope or steel belt, it is particularly important to configure a rope breakage and slack detection device.

[0003] Although some technical means have been provided to detect such problems, many solutions have certain limitations. For example, in actual engineering, due to the limited layout position of the rope end assembly, multiple rope end assemblies share a limit plate and a detection switch. When a certain rope breaks or becomes slack, the intact ropes cause the limit plate and the detection switch to fail to operate, resulting in the failure of the detection device. Therefore, we make improvements and propose an elevator rope breakage and slack detection device and a rope end structure. Summary of the Invention

[0004] The purpose of the utility model is to address the problem that multiple rope end assemblies share a limit plate and a detection switch, and when a certain rope breaks or becomes slack, the intact ropes cause the limit plate and the detection switch to fail to operate.

[0005] To achieve the above-mentioned invention purpose, the utility model provides an elevator rope breakage and slack detection device and a rope end structure to improve the above problems.

[0006] Specifically, this application is as follows:

[0007] An elevator rope breakage and slack detection device includes a detection mechanism, the detection mechanism includes a trigger part and a detection part arranged on one side of the trigger part, and the trigger part rotates to trigger the detection part when the rope breaks or becomes slack.

[0008] As a preferred technical solution of this application, the trigger part includes a striker bracket, a rotating shaft is arranged on the striker bracket, and a switch striker is connected to the outer surface of the rotating shaft.

[0009] As a preferred technical solution of this application, the switch striker rotates to trigger the detection part when the rope breaks or becomes slack.

[0010] As a preferred technical solution of this application, the detection part includes a detection switch, and the detection switch is located on one side of the striker bracket.

[0011] As a preferred technical solution of this application, the detection switch is in an on state.

[0012] As a preferred technical solution of the present application, the detection switch is located below the switch plate, and the detection switch is rotated and triggered by the switch plate.

[0013] As a preferred technical solution of the present application, a preset gap is left between the switch plate and the detection switch.

[0014] As a preferred technical solution of the present application, the detection part further includes a switch bracket located on one side of the plate bracket, and the detection switch is installed on the switch bracket.

[0015] As a preferred technical solution of the present application, the detection switch is connected to the elevator control system so that the action signal of the detection switch is transmitted to the control system of the elevator.

[0016] A rope end structure using an elevator rope breakage and slack detection device includes a rope end body, and the detection mechanism is arranged on the rope end body.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] In the solution of the present application:

[0019] In order to solve the problem in the prior art that multiple rope end assemblies share one limit plate and one detection switch, when a certain rope breaks or becomes slack, the intact ropes cause the limit plate and the detection switch to fail to act. In the present application, a detection mechanism is arranged on one side of the rope end body. The detection mechanism consists of a triggering part and a detection part. The triggering part rotates to trigger the detection part when the rope breaks or becomes slack, so as to timely detect the signs of rope breakage or slack, and the elevator stops to avoid accidents, improve the safety of elevator operation, avoid unnecessary replacement by judging the rope state, save resources, reduce operation costs, and the rope end body and the detection mechanism are in one-to-one correspondence, enabling independent monitoring. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the elevator rope breakage and slack detection device and the rope end structure provided by the present application;

[0021] Figure 2 It is a schematic structural diagram of the detection mechanism of the elevator rope breakage and slack detection device and the rope end structure provided by the present application;

[0022] Figure 3 It is a schematic structural diagram of the rope end body of the elevator rope breakage and slack detection device and the rope end structure provided by the present application.

[0023] Labels in the figure:

[0024] 1. Rope end main body; 101. Rope end plate; 102. Pull rod; 103. Upper spring seat; 104. Wedge sleeve; 105. Wedge block; 106. Load-bearing spring; 107. Lower spring seat; 108. Spring seat sleeve; 109. Outer convex ring; 110. Detection spring; 111. Split pin; 112. Nut main body; 113. Thin nut; 2. Detection mechanism; 201. Striker bracket; 202. Rotating shaft; 203. Switch striker; 204. Switch bracket; 205. Detection switch. Detailed implementation manners

[0025] In order to enable those skilled in the art of the present technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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 making creative efforts shall fall within the scope of protection of the present utility model.

[0026] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] Example 1, please refer to Figures 1 - 3 , an elevator rope breakage and slack detection device, including a detection mechanism 2. The detection mechanism 2 includes a triggering part and a detection part arranged on one side of the triggering part. The triggering part rotates when the rope breaks or becomes slack to trigger the detection part. In this application, by arranging the detection mechanism 2 on one side of the rope end main body 1, the detection mechanism 2 is composed of a triggering part and a detection part. The triggering part rotates when the rope breaks or becomes slack to trigger the detection part, which can timely detect the signs of rope breakage or slack, stop the elevator to avoid accidents, improve the safety of elevator operation, judge the rope state, avoid unnecessary replacements, save resources, and reduce operating costs. The rope end main body 1 and the detection mechanism 2 are in one-to-one correspondence, enabling independent monitoring.

[0029] Furthermore, as Figure 1 and Figure 2As shown, the triggering part includes a striker bracket 201. A rotating shaft 202 is arranged on the striker bracket 201. The outer surface of the rotating shaft 202 is connected with a switch striker 203. The rotating shaft 202 is used to connect the switch striker 203 and the striker bracket 201 together, and the switch striker 203 rotates around the rotating shaft 202. This ingenious structural design makes the rotation of the switch striker 203 not only flexible and smooth, but also extremely stable and reliable. When the rope is abnormal, the rotating shaft 202 can ensure that the switch striker 203 rotates quickly and accurately around it, greatly improving the accuracy and reliability of detection. Because the design of the rotating shaft 202 effectively reduces the friction and resistance during the movement of the switch striker 203, enabling the switch striker 203 to respond to the change of the rope in a very short time, thus accurately triggering the subsequent detection action.

[0030] Furthermore, the switch striker 203 rotates when the rope breaks or becomes slack to trigger the detection part, enabling the detection part to obtain a detection signal. Triggering the detection signal through the rotation of the switch striker 203 can ensure that the acquisition of the detection signal is extremely timely and accurate, enabling the elevator control system to receive information about the abnormal rope in the first time and thus quickly make emergency responses such as stopping the elevator.

[0031] Furthermore, as Figure 1 and Figure 2 shown, the detection part includes a detection switch 205. The detection switch 205 is located on one side of the striker bracket 201. By setting the detection switch 205 on one side of the striker bracket 201, the detection switch 205 can receive an accurate triggering signal in the shortest time, thus quickly starting the subsequent control actions and improving the timeliness and accuracy of detection.

[0032] Furthermore, the detection switch 205 is in a closed state to make the elevator circuit conductive. Once the detection switch 205 is pressed, the elevator circuit is disconnected.

[0033] Furthermore, as Figure 1 and Figure 2 shown, the detection switch 205 is located below the switch striker 203 and is triggered by the rotation of the switch striker 203. This design of the position and triggering method not only makes the triggering action more direct and efficient, but also reduces the uncertainty and error during the triggering process. The detection switch 205 can be accurately triggered by the switch striker, thus sending out an accurate detection signal. This is because the position design below the switch striker 203 makes the triggering process more precise, avoiding mis-triggering or missed triggering caused by position deviation or improper triggering method, and improving the reliability and stability of the detection system.

[0034] Furthermore, as Figure 1 and Figure 2As shown, a preset gap is left between the switch hitting plate 203 and the detection switch 205 to ensure that the switch action will not be triggered during the normal operation of the elevator. During the normal operation of the elevator, the load-bearing spring 106 and the detection spring 110 of the rope end body 1 are compressed simultaneously, so that the spring seat sleeve 108 does not contact the switch hitting plate 203 and the required preset gap is reserved. The existence of the preset gap effectively avoids false detection and false triggering caused by minor vibrations or normal rope tension changes during the normal operation of the elevator, ensuring that the elevator can operate stably and continuously.

[0035] Further, as Figure 1 and Figure 2 shown, the detection part further includes a switch bracket 204 located on one side of the hitting plate bracket 201. The detection switch 205 is installed on the switch bracket 204. The switch bracket 204 is used for installing the detection switch 205. The switch bracket 204 provides a stable and accurate installation position for the detection switch 205, effectively preventing the detection switch 205 from being displaced or loosened due to factors such as vibration and impact during operation, thus greatly enhancing the stability and reliability of the detection system.

[0036] Further, the detection switch 205 is connected to the elevator control system so that the action signal of the detection switch 205 is transmitted to the control system of the elevator. The direct connection between the detection switch 205 and the elevator control system realizes seamless docking of detection and control, ensuring that the detected abnormal rope signal can be transmitted to the elevator control system in the shortest time and converted into effective control instructions, such as immediately stopping the elevator operation. This direct connection method greatly improves the response speed and processing ability of the elevator control system to rope abnormalities, effectively ensuring the safe operation of the elevator, because the direct connection reduces intermediate links and possible signal attenuation, distortion and other problems during signal transmission, enabling the elevator control system to receive accurate and clear detection signals in the first time and quickly make correct decisions and control actions.

[0037] Embodiment 2, please refer to Figures 1 - 3 , a rope end structure using an elevator rope breakage and slack detection device, includes a rope end body 1, and a detection mechanism 2 is arranged on the rope end body 1, closely integrating the detection device with the rope end body 1. This not only saves valuable installation space, but also makes the structure of the whole system more compact and concise, reducing connection failures and signal transmission problems that may be caused by scattered installation of components. This integrated design also improves the stability and reliability of the whole system because it reduces the connection points and potential failure sources between components. In addition, the integrated design is also convenient for installation, debugging and maintenance, reducing the installation cost and maintenance difficulty of the system, and improving the overall efficiency and safety of elevator operation.

[0038] Embodiment 3, please refer toFigure 1 and Figure 3 For Figure 3 , the rope end body 1 includes a rope end plate 101, a pull rod 102 is inserted and connected to the rope end plate 101, a spring seat sleeve 108 is sleeved on the outer surface of the pull rod 102, a detection spring 110 is sleeved on the outer surface of the pull rod 102 and is located inside the spring seat sleeve 108, an outer convex ring 109 is fixedly installed on the outer peripheral side of the spring seat sleeve 108, and the outer convex ring 109 can rise when the rope is slack or broken to toggle the switch plate 203.

[0039] Furthermore, as Figure 1 and Figure 3 shown, a lower spring seat 107 is sleeved on the outer surface of the pull rod 102, the lower spring seat 107 is located between the rope end plate 101 and the spring seat sleeve 108, and both ends of the detection spring 110 are in contact with the spring seat sleeve 108 and the lower spring seat 107 respectively. The detection spring 110 can push the spring seat sleeve 108 and the outer convex ring 109 to rise when the rope breaks and becomes slack.

[0040] Furthermore, as Figure 1 and Figure 3 shown, an upper spring seat 103 is arranged on the outer surface of the pull rod 102 above the spring seat sleeve 108, and a load-bearing spring 106 is also arranged on the outer surface of the pull rod 102 between the upper spring seat 103 and the spring seat sleeve 108. The load-bearing spring 106 is used to adjust the tension difference. It can effectively adjust the tension difference between the ropes, ensure that each rope is evenly stressed, and thus improve the stability and safety of the elevator operation.

[0041] Furthermore, as Figure 1 and Figure 3 shown, a nut body 112 and a thin nut 113 are threadedly connected to the outer surface of the pull rod 102. The nut body 112 is located between the thin nut 113 and the upper spring seat 103, and the thin nut 113 and the nut body 112 cooperate with each other for the limit of the upper spring seat 103.

[0042] Furthermore, as Figure 1 and Figure 3 shown, the pull rod 102 is provided with a through hole, and a split pin 111 is arranged in the through hole. The split pin 111 is used for the limit of the thin nut 113 and the nut body 112 to prevent the thin nut 113 and the nut body 112 from detaching from the pull rod 102. The arrangement of the split pin 111 provides a strong anti-detachment guarantee for the thin nut 113 and the nut body 112, significantly enhancing the stability and reliability of the entire structure. This effectively avoids that during the elevator operation, due to long-term vibration and impact, the nut accidentally falls off, thus triggering a serious safety accident, because the split pin 111 can firmly limit the position of the nut. Even under extremely harsh working conditions, it can ensure that the nut does not loosen or detach, providing a solid foundation for the safe operation of the elevator.

[0043] Furthermore, as Figure 1 and Figure 3 shown, a connecting member is provided at the bottom end of the tie rod 102, and the connecting member is used to connect the rope.

[0044] Furthermore, as Figure 1 and Figure 3 shown, the connecting member includes a wedge sleeve 104 installed at the bottom of the tie rod 102. A wedge block 105 is provided inside the wedge sleeve 104. The wedge sleeve 104 and the wedge block 105 can cooperate with each other to connect the rope. This connection structure can not only withstand huge tensile forces, but also is not prone to loosening or failure during long-term use. Due to the special shapes and mating relationships of the wedge sleeve 104 and the wedge block 105, strong frictional forces and clamping forces can be generated, making the rope connection more stable and greatly reducing the safety risks caused by connection problems.

[0045] Furthermore, the load-bearing spring 106 and the detection spring 110 are simultaneously compressed by force. When the spring seat sleeve 108 contacts the lower spring seat 107, the detection spring 110 stops operating, while the load-bearing spring 106 can further operate.

[0046] Furthermore, the height of the spring seat sleeve 108 is less than the height of the detection spring 110. This design of the height difference can provide the required space for the compression of the detection spring 110.

[0047] Furthermore, the stroke of the detection spring 110 is the height difference between the spring seat sleeve 108 and the detection spring 110. The clear stroke regulation ensures the predictability and accuracy of the operation of the detection spring 110, which makes the detection results more reliable, helps to judge the state of the rope in a timely and accurate manner, and take corresponding control measures. Because the fixed stroke can reduce the detection error, making the detection spring 110 always follow the established rules during operation, providing a stable and reliable basis for the safety monitoring of the elevator.

[0048] Furthermore, the detection spring 110 is applied to detect the slack and breakage of the traction steel belt.

[0049] The usage process is as follows:

[0050] When the rope end body 1 is stressed, the load-bearing spring 106 and the detection spring 110 are compressed simultaneously. The spring seat sleeve 108 is also stressed and moves downward. When the spring seat sleeve 108 contacts the lower spring seat 107, the lower spring seat 107 stops moving, while the load-bearing spring 106 continues to be compressed downward until it reaches force balance with the rope and stops moving. When the rope becomes slack or breaks, the load-bearing spring 106 and the detection spring 110 extend, and the spring seat sleeve 108 and the outer convex ring 109 rise. During the rising process of the outer convex ring 109, the switch hitting plate 203 is toggled, causing the switch hitting plate 203 to rotate around the rotating shaft 202, so that the switch hitting plate 203 presses the detection switch 205. The action signal of the detection switch 205 is transmitted to the control system of the elevator to stop the operation of the elevator.

[0051] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0052] Obviously, the embodiments described above are only part of the embodiments of the present utility model, rather than all embodiments. The drawings show preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent substitution on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields shall be within the scope of the patent protection of the present utility model by the same token.

Claims

1. An elevator rope breakage and slack detection device, characterized in that, It includes a detection mechanism (2), and the detection mechanism (2) includes a triggering part and a detection part arranged on one side of the triggering part. The triggering part rotates when the rope breaks and becomes slack to trigger the detection part; The triggering part includes a striker bracket (201), and a rotating shaft (202) is arranged on the striker bracket (201), and a switch striker (203) is connected to the outer surface of the rotating shaft (202); The detection part includes a detection switch (205), and the detection switch (205) is located on one side of the striker bracket (201); The detection switch (205) is located below the switch striker (203), and the detection switch (205) is rotated and touched by the switch striker (203); The detection part further includes a switch bracket (204) located on one side of the striker bracket (201), and the detection switch (205) is installed on the switch bracket (204); The detection switch (205) is connected to the elevator control system so that the action signal of the detection switch (205) is transmitted to the control system of the elevator.

2. The elevator rope breakage and slack detection device according to claim 1, characterized in that The switch striker (203) rotates when the rope breaks and becomes slack to trigger the detection part.

3. The elevator rope breakage and slack detection device according to claim 1, wherein, The detection switch (205) is in an on state.

4. The elevator rope breakage and slack detection device according to claim 1, characterized in that, A preset gap is left between the switch striker (203) and the detection switch (205).

5. A rope end structure, using an elevator rope breakage and slack detection device according to any one of claims 1-4, characterized in that, It includes a rope end body (1), and the detection mechanism (2) is arranged on the rope end body (1).

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