Cable hoisting safety monitoring equipment
By designing cable lifting safety monitoring equipment, including deflection angle and broken wire monitoring components, the problem of difficulty in monitoring the deflection angle and wear status of the lifting sling in the prior art is solved, and real-time and safety monitoring of the cable lifting system is achieved.
Patent Information
- Application Number
- CN202520176514.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-27
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2035-01-27
AI Technical Summary
The prior art is difficult to accurately monitor the deflection angle and wear state of lifting slings in cable lifting systems, making it difficult to grasp the safety of the lifting process.
Design a cable hoisting safety monitoring device, including deflection angle monitoring assembly and broken wire monitoring assembly. The deflection angle monitoring component monitors the offset distance of the second sliding sleeve through the first distance sensor, and calculates the angle between the lifting sling and the vertical direction; the wire breaking monitoring component monitors whether the wire breaks occurs on the surface of the lifting sling through the current sensor and the contact sleeve.
Real-time and quantitative monitoring of the deflection angle and wear state of the lifting sling is realized, the safety of the lifting process is improved, the labor intensity of safety personnel is reduced, and the missed inspection is effectively avoided.
Smart Images
Figure CN222593280U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safety monitoring, in particular to a cable hoisting safety monitoring device. Background Art
[0002] The cable lifting system is a bridge construction system commonly used when the span between the two banks is large. It mainly includes a cableway, a tower and a sports car. Two towers are erected on both banks respectively, and the cableway is supported by the two towers. A traction rope is connected to the sports car. Under the traction of the traction rope, the sports car can move along the cableway. The lifting sling is installed on the sports car. Through the traction of the lifting sling, the objects to be lifted (usually including prefabricated components) can be lifted, lowered and maintained at a height, so that the objects to be lifted can be transported to the mid-span position and installed when the span between the two banks is large.
[0003] In order to ensure the safety of the cable lifting construction process, it is necessary to monitor and observe the tower, sports car and cables (including cableways, traction cables, lifting slings, etc.) used for lifting. Among them, the lifting sling is a component that directly connects the objects to be lifted. Its posture (mainly refers to the deviation angle of the lifting sling from the vertical direction) and wear state are directly related to the safety of the lifting process. Therefore, it is necessary to monitor the posture and wear state of the lifting sling.
[0004] In industry practice, the posture of the lifting sling is usually observed by safety personnel on the ground (including using telescopes, drones and other tools to assist observation). Obviously, such monitoring methods cannot quantify the deviation angle of the lifting sling from the vertical direction, and thus cannot accurately grasp the safety of the lifting process; and the wear state of the lifting sling is usually visually inspected by safety personnel during regular maintenance of the lifting sling. There are problems such as hidden dangers that cannot be discovered in time during inspection intervals and missed inspections due to negligence during the inspection process. Utility Model Content
[0005] The utility model aims to provide a cable hoisting safety monitoring device which can at least partially overcome the above-mentioned technical problems. On the one hand, it can monitor and quantify the deflection angle of the lifting rope in real time, and on the other hand, it can monitor the wear state of the lifting rope in real time. Moreover, the cable hoisting safety monitoring device has a high degree of automation and can reduce the labor intensity of safety personnel.
[0006] The utility model proposes a cable hoisting safety monitoring device, which is used for monitoring a cable hoisting system. The cable hoisting system comprises a cableway, on which is mounted a sports car capable of traveling along the cableway, on which is arranged a lifting rope, one end of which is used for connecting an object to be hoisted, and the cable hoisting safety monitoring device comprises an angle monitoring component, which can monitor the angle between the lifting rope located between the sports car and the object to be hoisted and a vertical direction; the angle monitoring component comprises a first sliding sleeve, a sliding rod, a second sliding sleeve and a first distance sensor.
[0007] Furthermore, the first sliding sleeve is fixedly mounted on the bracket of the sports car, one end of the sliding rod is slidably inserted in the first sliding sleeve, the other end of the sliding rod is rotatably connected to the second sliding sleeve, and the second sliding sleeve is slidably mounted on a lifting sling between the sports car and the object to be hoisted; the first distance sensor is fixedly mounted on the sports car, and the first distance sensor is used to monitor a first distance value between it and the sliding rod.
[0008] Furthermore, the sliding rod and the first sliding sleeve slide relatively along a first direction, and the first direction is horizontal.
[0009] Further, the first distance sensor is located in the first direction.
[0010] Obviously, in the above scheme, the deflection monitoring component can only monitor the displacement of the second sleeve in the first direction, but cannot monitor the displacement of the second sleeve in other directions, and under the action of external forces such as wind, the second sleeve will inevitably be displaced in a direction that is not parallel to the second direction in the horizontal plane (this process can easily cause the sliding action of the sliding rod to be stuck, resulting in the monitored first distance value being unable to accurately reflect the displacement of the lifting sling between the sports car and the object to be hoisted, and may even cause damage to the first sleeve, the sliding rod and the second sleeve).
[0011] To this end, the inventors have further optimized the above technical solution, specifically: the deflection angle monitoring component also includes a second distance sensor; the first sleeve is slidably installed on the bracket of the sports car, one end of the sliding rod is slidably inserted in the first sleeve and can rotate relative to the first sleeve, the other end of the sliding rod is rotatably connected to the second sleeve, and the second sleeve is slidably mounted on the lifting sling between the sports car and the object to be hoisted; the first distance sensor is fixedly installed on the first sleeve, and the first distance sensor is used to monitor the first distance value between it and the sliding rod; the second distance sensor is fixedly installed on the bracket, and the second distance sensor is used to monitor the second distance value between the first sleeve and the bracket.
[0012] Furthermore, the sliding rod and the first sliding sleeve slide relatively to each other along a first direction, and the first sliding sleeve and the bracket slide relatively to each other along a second direction; the first direction and the second direction are in the same horizontal plane and are perpendicular to each other.
[0013] Further, the first distance sensor is located in the first direction, and the second distance sensor is located in the second direction.
[0014] In the specific practice, the inventor found that the current monitoring of the wear status of the lifting rope in the industry relies on manual regular visual inspection. A high inspection frequency will bring a huge workload to the safety personnel, while a low inspection frequency will make it difficult to detect the broken wire of the lifting rope in time, and manual visual inspection is easy to miss. In order to detect the broken wire of the lifting rope in time and avoid accidents, the inventor has made further improvements to the above-mentioned cable hoisting safety monitoring equipment.
[0015] Preferably, the cable hoisting safety monitoring device further comprises a broken wire monitoring component, and the broken wire monitoring component is capable of monitoring whether a broken wire occurs on the surface of the lifting rope passing through the second sliding sleeve.
[0016] Furthermore, the lifting sling is electrically insulated from the ground; the broken wire monitoring assembly includes a power supply, a current sensor and a contact sleeve; the contact sleeve is made of conductive material, one end of the contact sleeve is fixedly connected to the second sliding sleeve, the contact sleeve and the second sliding sleeve are electrically insulated, and the contact sleeve is arranged on the outside of the lifting sling and there is a gap between the contact sleeve and the lifting sling; one pole of the power supply is electrically connected to the first interface of the current sensor, the second interface of the current sensor is electrically connected to the lifting sling, and the other pole of the power supply is electrically connected to the contact sleeve.
[0017] Furthermore, the broken wire monitoring assembly also includes a third sliding sleeve, which is arranged on the lifting sling between the sports car and the object to be hoisted and fixedly connected to the other end of the contact sleeve, and the contact sleeve and the third sliding sleeve are electrically insulated.
[0018] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0019] 1. The utility model provides a cable hoisting safety monitoring device, which can obtain the offset distance of the second sliding sleeve by monitoring the first distance value through the first distance sensor, and then obtain the angle between the lifting cable between the sports car and the object to be hoisted and the vertical direction through the offset distance and the existing parameters of the cable hoisting safety monitoring device installed on the sports car;
[0020] 2. The utility model provides a cable hoisting safety monitoring device, which, by setting a broken wire monitoring component, can avoid the tedious work of manually checking whether the lifting rope has broken wires, thereby reducing the workload of safety personnel and effectively avoiding missed detection. On the other hand, in the event that the lifting rope has broken wires, it can also be discovered more promptly. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:
[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of a sports car equipped with the cable hoisting safety monitoring device according to Example 1;
[0023] Figure 2 Based on Figure 1 A partial magnified view of the drawn A area;
[0024] Figure 3 A longitudinal sectional view of a sports car equipped with the cable hoisting safety monitoring device drawn according to Example 1;
[0025] Figure 4 Based on Figure 3 A schematic diagram of the deflection of the lifting sling is drawn;
[0026] Figure 5 The three-dimensional structural schematic diagram of a sports car equipped with the cable hoisting safety monitoring device drawn according to Example 2;
[0027] Figure 6 Based on Figure 5 A partial magnified view of the drawn B area;
[0028] Figure 7 Another three-dimensional structural schematic diagram of a sports car equipped with the cable hoisting safety monitoring device drawn according to Example 2;
[0029] Figure 8 A longitudinal sectional view of a sports car equipped with the cable hoisting safety monitoring device according to Example 2;
[0030] Fig. 9 The cable hoisting safety monitoring device drawn according to Example 3 also includes a schematic diagram of a broken wire monitoring component.
[0031] Marks and corresponding parts names in the attached drawings:
[0032] 1-cableway; 21-bracket; 22-pulley; 3-lifting sling; 41-first sliding sleeve; 42-sliding rod; 43-second sliding sleeve; 44-first distance sensor; 45-second distance sensor; 51-power supply; 52-current sensor; 53-contact sleeve; 54-third sliding sleeve. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the embodiments and drawings. The schematic implementation mode and description of the utility model are only used to explain the utility model and are not intended to limit the utility model. It should be noted that the utility model is already in the actual development and use stage.
[0034] The cable lifting system is a bridge construction system commonly used when the span between the two banks is large. It mainly includes a cableway, a tower and a sports car. Two towers are erected on both banks respectively, and the cableway is supported by the two towers. A traction cable is connected to the sports car. Under the traction of the traction cable, the sports car can move along the cableway (usually rolling or sliding). The lifting sling is installed on the sports car. Through the traction of the lifting sling, the objects to be lifted (usually including prefabricated components) can be lifted, lowered and maintained at a height, so that the objects to be lifted can be transported to the mid-span position and installed when the span between the two banks is large.
[0035] In order to ensure the safety of the cable lifting construction process, it is necessary to monitor and observe the tower, sports car and cables (including cableways, traction ropes, lifting slings, etc.) used for lifting. Among them, the lifting sling is a component that directly connects the objects to be lifted. Its posture (mainly refers to the deviation angle of the lifting sling from the vertical direction. If the deviation angle is too large, the heavy objects being lifted are prone to severe swinging, which in turn causes accidents) and wear state (the wear of the lifting sling is usually manifested as the disconnection of some fiber filaments, which in turn leads to a decrease in the tensile strength of the lifting sling) are directly related to the safety of the lifting process. Therefore, it is necessary to monitor the posture and wear state of the lifting sling.
[0036] In industry practice, the posture of the lifting sling is usually observed by safety personnel on the ground (including using telescopes, drones and other tools to assist observation). Obviously, such monitoring methods cannot quantify the deviation angle of the lifting sling from the vertical direction, and thus cannot accurately grasp the safety of the lifting process; and the wear state of the lifting sling is usually visually inspected by safety personnel during regular maintenance of the lifting sling. There are problems such as hidden dangers that cannot be discovered in time during inspection intervals and missed inspections due to negligence during the inspection process.
[0037] The utility model proposes a cable hoisting safety monitoring device, which can monitor and quantify the deflection angle of the lifting rope in real time on the one hand, and monitor the wear state of the lifting rope in real time on the other hand. In addition, the cable hoisting safety monitoring device has a high degree of automation and can reduce the labor intensity of safety personnel.
[0038] Embodiment 1:
[0039] Please refer to Figures 1 to 3 (in, Figure 3 The embodiment provides a cable hoisting safety monitoring device for monitoring a cable hoisting system, wherein the cable hoisting system comprises a cableway 1, on which a sports car capable of traveling along the cableway 1 is installed, and on which a lifting rope 3 (preferably, as Figures 1 to 3 As shown, a pulley 22 is rotatably mounted on the sports car, and the lifting sling 3 is wound around the pulley 22. One end of the lifting sling 3 is used to connect the object to be lifted.
[0040] The cable hoisting safety monitoring device comprises a deflection monitoring component, which can monitor the angle between the lifting cable 3 between the sports car and the object to be hoisted and the vertical direction;
[0041] The deflection angle monitoring component monitors the angle by monitoring the projected length of the lifting rope 3 between the sports car and the object to be hoisted on the horizontal plane.
[0042] Specifically, the deflection angle monitoring assembly includes a first sliding sleeve 41, a sliding rod 42, a second sliding sleeve 43 and a first distance sensor 44;
[0043] The first sliding sleeve 41 is fixedly mounted on the bracket 21 of the sports car, one end of the sliding rod 42 is slidably inserted in the first sliding sleeve 41, the other end of the sliding rod 42 is rotatably connected to the second sliding sleeve 43, and the second sliding sleeve 43 is slidably mounted on the lifting sling 3 between the sports car and the object to be hoisted;
[0044] The first distance sensor 44 is fixedly mounted on the sports car, and the first distance sensor 44 is used to monitor a first distance value between the first distance sensor 44 and the sliding rod 42 .
[0045] Preferably, the sliding rod 42 and the first sliding sleeve 41 slide relatively along a first direction, and the first direction is horizontal; the first distance sensor 44 is located in the first direction.
[0046] Accordingly, the cable hoisting safety monitoring device provided in this embodiment can obtain the offset distance of the second sleeve 43 by monitoring the first distance value between the first distance sensor 44 and the sliding rod 42 through the first distance sensor 44 (it should be understood that in this embodiment, under the constraint of the deflection monitoring component, the offset distance coincides with the first direction, and the position of the second sleeve 43 when the lifting rope 3 between the sports car and the object to be hoisted is in a vertical state is taken as the initial position, and the offset distance refers to the offset between the current position of the second sleeve 43 and the initial position, that is, the extension and contraction amount of the sliding rod 42 compared to the initial position), and then the angle between the lifting rope 3 between the sports car and the object to be hoisted and the vertical direction can be obtained through the offset distance and the existing parameters of the cable hoisting safety monitoring device installed on the sports car. Obviously, during the hoisting process, the angle should be controlled within a certain range to avoid large-scale shaking of the hoisted objects, which is conducive to ensuring the safe operation of the cable hoisting system.
[0047] It should be understood that the cable hoisting safety monitoring device further includes a processor, and the first distance sensor 44 is electrically connected to the processor. Obviously, by pre-calibrating the initial position of the second sliding sleeve 43, the processor can obtain the offset distance according to the monitored first distance value. The processor obtains the angle based on the offset distance and the existing parameters, including:
[0048] Combination Figure 4 ( Figure 4 The first direction is parallel to the ropeway 1 and the traction side of the first sensor and the lifting rope 3 are located on the same side of the pulley 22. Figure 4 In the figure, two dotted lines respectively indicate that the lifting rope 3 between the sports car and the object to be hoisted is in a vertical state and an offset state), and the following equation is established based on the offset distance and the existing parameters:
[0049] ,
[0050] in, θ is the angle between the lifting sling 3 between the sports car and the object to be hoisted and the vertical direction, L is the offset distance, H is the height difference between the axis of the pulley 22 and the first distance sensor 44, Δ L=R-cosθR , Δ H = sinθR , R is the radius of the circle corresponding to the center line of the lifting rope 3 wound around the pulley 22;
[0051] It can be solved as:
[0052] ,
[0053] θ The solution process is related mathematical knowledge, which will not be repeated here. It should be understood that the above solution θ The process is Figure 4 Taking the situation shown in the figure as an example, it is obvious that the lifting sling 3 between the sports car and the object to be lifted is offset to the left (relative to Figure 4 In the case of a rightward shift), the solution process is similar and will not be repeated here.
[0054] Embodiment 2:
[0055] like Figures 5 to 8 As shown, this embodiment is based on Embodiment 1, except that, in this embodiment:
[0056] The deflection angle monitoring assembly includes a first sliding sleeve 41, a sliding rod 42, a second sliding sleeve 43, a first distance sensor 44 and a second distance sensor 45;
[0057] The first sliding sleeve 41 is slidably mounted on the bracket 21 of the sports car, one end of the sliding rod 42 is slidably inserted in the first sliding sleeve 41 and can rotate relative to the first sliding sleeve 41, the other end of the sliding rod 42 is rotatably connected to the second sliding sleeve 43, and the second sliding sleeve 43 is slidably mounted on the lifting sling 3 between the sports car and the object to be hoisted;
[0058] The first distance sensor 44 is fixedly mounted on the first sliding sleeve 41, and the first distance sensor 44 is used to monitor a first distance value between the first distance sensor 44 and the sliding rod 42;
[0059] The second distance sensor 45 is fixedly mounted on the bracket 21 , and the second distance sensor 45 is used to monitor a second distance value between the first sliding sleeve 41 and the bracket 21 .
[0060] Preferably, the sliding rod 42 and the first sliding sleeve 41 slide relative to each other along a first direction, and the first sliding sleeve 41 and the bracket 21 slide relative to each other along a second direction; the first direction and the second direction are in the same horizontal plane and are perpendicular to each other; the first distance sensor 44 is located in the first direction, and the second distance sensor 45 is located in the second direction.
[0061] Accordingly, the cable lifting safety monitoring device provided in this embodiment monitors the first distance value through the first distance sensor 44 and monitors the second distance value through the second sensor, so as to obtain the offset distance of the second sleeve 43, and then obtain the angle between the lifting rope 3 located between the sports car and the object to be lifted and the vertical direction through the offset distance and the existing parameters of the cable lifting safety monitoring device installed on the sports car.
[0062] It should be understood that, in this embodiment, the offset distance is the combined effect of the offset of the second sliding sleeve 43 in the first direction and the offset in the second direction, specifically:
[0063] ,
[0064] in, L 1 is the displacement of the second sliding sleeve 43 in the first direction, L 2 is the offset of the second sliding sleeve 43 in the second direction.
[0065] Compared with Example 1, in this embodiment, it is also considered that the deviation of the lifting sling 3 located between the sports car and the object to be hoisted not only occurs in the direction of movement of the sports car, but may also deviate in the horizontal direction perpendicular to the direction of movement of the sports car (for example, due to the effect of wind force), so that the angle between the lifting sling 3 located between the sports car and the object to be hoisted and the vertical direction obtained by monitoring by the cable hoisting safety monitoring device provided in this embodiment is more accurate; in addition, the cable hoisting safety monitoring device provided in this embodiment can adapt to the influence of wind force that is not parallel to the first direction (for the cable hoisting safety monitoring device in Example 1, under the action of wind force that is not parallel to the first direction, the lifting sling 3 applies an external force that is not parallel to the first direction to the second sliding sleeve 43, and this external force causes the first sliding sleeve 41, the sliding rod 42 and the second sliding sleeve 43 to be bent in a horizontal plane that is not parallel to the first direction, which can easily cause the sliding action of the sliding rod 42 to be stuck, and even cause the first sliding sleeve 41, the sliding rod 42 and the second sliding sleeve 43 to be damaged).
[0066] Embodiment 3:
[0067] like Fig. 9 As shown, this embodiment is based on Embodiment 1 or Embodiment 2, except that, in this embodiment:
[0068] The cable hoisting safety monitoring device further comprises a broken wire monitoring component, which can monitor whether broken wires occur on the surface of the lifting rope 3 passing through the second sliding sleeve 43 .
[0069] Specifically, the lifting sling 3 is electrically insulated from the ground;
[0070] The broken wire monitoring assembly includes a power supply 51, a current sensor 52 and a contact sleeve 53;
[0071] The contact sleeve 53 is made of conductive material, one end of the contact sleeve 53 is fixedly connected to the second sliding sleeve 43, the contact sleeve 53 and the second sliding sleeve 43 are electrically insulated, and the contact sleeve 53 is sleeved outside the lifting sling 3 and there is a gap between the contact sleeve 53 and the lifting sling 3;
[0072] One pole of the power supply 51 is electrically connected to the first interface of the current sensor 52, the second interface of the current sensor 52 is electrically connected to the lifting sling 3, and the other pole of the power supply 51 is electrically connected to the contact sleeve 53. Obviously, one pole of the power supply 51 can also be electrically connected to the lifting sling 3, the other pole of the power supply 51 can be electrically connected to the first interface of the current sensor 52, and the second interface of the current sensor 52 can be electrically connected to the contact sleeve 53.
[0073] It should be understood that the cable hoisting safety monitoring device also includes a processor, and the current sensor 52 is electrically connected to the processor.
[0074] Accordingly, when the processor receives the signal transmitted by the current sensor 52, it means that current flows through the current sensor 52, that is, the power supply 51, the current sensor 52, the lifting rope 3 and the contact sleeve 53 form a path. Obviously, the path is that part of the fiber filaments of the lifting rope 3 are broken and pass through the position of the contact sleeve 53, and then the contact sleeve 53 and the lifting rope 3 are connected to form a path. That is to say, when the processor receives the signal transmitted by the current sensor 52, it can be determined that the lifting rope 3 has a broken wire phenomenon.
[0075] It can be seen that the cable lifting safety monitoring equipment provided in this embodiment can avoid the tedious work of manually checking whether the lifting rope 3 is broken by setting a broken wire monitoring component, thereby reducing the workload of safety personnel and effectively avoiding missed detection. On the other hand, in the event that the lifting rope 3 is broken, it can also be discovered more promptly.
[0076] Preferably, the broken wire monitoring assembly also includes a third sliding sleeve 54, which is slidingly arranged on the lifting sling 3 between the sports car and the object to be hoisted and fixedly connected to the other end of the contact sleeve 53, and the contact sleeve 53 and the third sliding sleeve 54 are electrically insulated.
[0077] Thus, both ends of the contact sleeve 53 are supported by the second sliding sleeve 43 and the third sliding sleeve 54 respectively, thereby avoiding accidental contact between the contact sleeve 53 and the lifting rope 3, thereby improving the reliability of the monitoring result of the broken wire monitoring component.
[0078] It should be understood that, in the present application, "rotational connection" means that the two can only rotate relative to each other. For example, the rotation setting of the hole and the shaft rod can achieve the limitation of axial relative movement by setting a shoulder on the shaft and a limit groove in the hole; the terms "sliding insertion", "sliding sleeve" and "sliding installation" mean that the two can only slide relative to each other, such as dovetail grooves, T-slots and other structures.
[0079] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A cable hoisting safety monitoring device for monitoring a cable hoisting system, the cable hoisting system comprising a cableway (1), a sports car capable of traveling along the cableway (1) being installed on the cableway (1), a lifting sling (3) being arranged on the sports car, one end of the lifting sling (3) being used for connecting an object to be hoisted, characterized in that: The cable hoisting safety monitoring device comprises an angle monitoring component, wherein the angle monitoring component is capable of monitoring the angle between the lifting cable (3) between the sports car and the object to be hoisted and the vertical direction; The deflection angle monitoring assembly comprises a first sliding sleeve (41), a sliding rod (42), a second sliding sleeve (43) and a first distance sensor (44).
2. The cable hoisting safety monitoring device according to claim 1 is characterized in that: The first sliding sleeve (41) is fixedly mounted on the bracket (21) of the sports car, one end of the sliding rod (42) is slidably inserted into the first sliding sleeve (41), the other end of the sliding rod (42) is rotatably connected to the second sliding sleeve (43), and the second sliding sleeve (43) is slidably mounted on a lifting sling (3) between the sports car and the object to be hoisted; The first distance sensor (44) is fixedly mounted on the sports car, and the first distance sensor (44) is used to monitor a first distance value between the first distance sensor (44) and the sliding rod (42).
3. The cable hoisting safety monitoring device according to claim 2 is characterized in that: The sliding rod (42) and the first sliding sleeve (41) slide relatively along a first direction, and the first direction is horizontal.
4. The cable hoisting safety monitoring device according to claim 3 is characterized in that: The first distance sensor (44) is located in the first direction.
5. The cable hoisting safety monitoring device according to claim 1, characterized in that: The deflection angle monitoring assembly further includes a second distance sensor (45); The first sliding sleeve (41) is slidably mounted on the bracket (21) of the sports car, one end of the sliding rod (42) is slidably inserted in the first sliding sleeve (41) and can rotate relative to the first sliding sleeve (41), the other end of the sliding rod (42) is rotatably connected to the second sliding sleeve (43), and the second sliding sleeve (43) is slidably mounted on the lifting sling (3) between the sports car and the object to be hoisted; The first distance sensor (44) is fixedly mounted on the first sliding sleeve (41), and the first distance sensor (44) is used to monitor a first distance value between the first distance sensor (44) and the sliding rod (42); The second distance sensor (45) is fixedly mounted on the bracket (21), and the second distance sensor (45) is used to monitor a second distance value between the first sliding sleeve (41) and the bracket (21).
6. The cable hoisting safety monitoring device according to claim 5, characterized in that: The sliding rod (42) and the first sliding sleeve (41) slide relatively to each other along a first direction, and the first sliding sleeve (41) and the bracket (21) slide relatively to each other along a second direction; The first direction and the second direction are in the same horizontal plane and are perpendicular to each other.
7. The cable hoisting safety monitoring device according to claim 6, characterized in that: The first distance sensor (44) is located in the first direction, and the second distance sensor (45) is located in the second direction.
8. The cable hoisting safety monitoring device according to any one of claims 2 to 7, characterized in that: The cable hoisting safety monitoring device further comprises a broken wire monitoring component, which is capable of monitoring whether broken wires occur on the surface of the lifting rope (3) passing through the second sliding sleeve (43).
9. The cable hoisting safety monitoring device according to claim 8, characterized in that: The lifting sling (3) is electrically insulated from the ground; The broken wire monitoring component comprises a power supply (51), a current sensor (52) and a contact sleeve (53); The contact sleeve (53) is made of conductive material, one end of the contact sleeve (53) is fixedly connected to the second sliding sleeve (43), the contact sleeve (53) and the second sliding sleeve (43) are electrically insulated, and the contact sleeve (53) is sleeved on the outside of the lifting sling (3) with a gap between the contact sleeve (53) and the lifting sling (3); One pole of the power supply (51) is electrically connected to a first interface of the current sensor (52), a second interface of the current sensor (52) is electrically connected to the lifting sling (3), and the other pole of the power supply (51) is electrically connected to the contact sleeve (53).
10. The cable hoisting safety monitoring device according to claim 9, characterized in that: The broken wire monitoring assembly further comprises a third sliding sleeve (54), the third sliding sleeve (54) being slidingly mounted on a lifting sling (3) between the sports car and the object to be hoisted and fixedly connected to the other end of the contact sleeve (53), the contact sleeve (53) and the third sliding sleeve (54) being electrically insulated.