Safety monitoring alarm device for ensuring safety of crane

Abstract

This utility model relates to the field of crane safety monitoring technology and discloses a safety monitoring and alarm device for ensuring crane safety. It includes a mounting frame, with a mounting housing slidably connected to the inner side of the mounting frame. An inclination sensor is installed inside the mounting housing, and side fixing plates are symmetrically arranged on both sides of the inclination sensor. These side fixing plates are slidably connected to the inner side of the mounting housing. By setting up the mounting housing, placing the inclination sensor inside, and symmetrically arranging side fixing plates on both sides of the inclination sensor, a base plate is provided at the bottom of the inclination sensor. Springs are provided on the sides of the side fixing plates and the bottom of the base plate. Therefore, when the mounting housing is impacted, the inclination sensor will slide inside the mounting housing. The springs effectively counteract the vibration generated by the inclination sensor, effectively buffering and protecting it, and ensuring the safety of the inclination sensor in use.

Description

Technical Field

[0001] This utility model relates to the field of crane safety monitoring technology, and in particular to a safety monitoring and alarm device for ensuring crane safety. Background Technology

[0002] Cranes are heavy-duty engineering machinery used for material handling, widely used in construction, ports, and industry. They can be classified by structure into bridge cranes, tower cranes, and truck cranes, etc. They rely on lifting, traveling, luffing, and rotating mechanisms to achieve the displacement of heavy objects. Crane safety monitoring and alarm devices are key equipment to ensure their safe operation. These devices collect parameters such as lifting weight, amplitude, height, and speed in real time through sensors, which are then analyzed and processed by the controller. When the crane approaches or exceeds safety limits, an audible and visual alarm is immediately issued. Some devices can also link with the control mechanism to slow down or stop the crane, effectively preventing accidents such as overload, over-amplitude, and collisions. Simultaneously, they can record operating data, providing a basis for fault diagnosis and safety management, making them an important technical means for crane safety supervision.

[0003] During lifting operations, cranes generate high-frequency vibrations such as boom extension and retraction, and impacts from lifting heavy objects, as well as low-frequency swaying due to overall machine rotation and wind. When tilt sensors are directly fixed to the equipment body, continuous vibration can easily lead to fatigue damage to components such as strain gauges and laser modules inside the sensors, shortening their lifespan. It can also cause measurement data drift, leading to false alarms or missed alarms. In addition, it may cause loose wiring terminals and fatigue breakage of cables, resulting in the failure of the monitoring system. Furthermore, harsh environments such as dust, rain, and high and low temperatures will exacerbate the wear caused by vibration, further reducing reliability. Existing vibration damping solutions mostly use a single rubber pad or spring, which can only buffer unidirectional vibration and lacks protective structures, making it unable to cope with the complex multidimensional vibrations and environmental erosion of cranes.

[0004] Therefore, it is necessary to invent a safety monitoring and alarm device to ensure the safety of cranes and solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a safety monitoring and alarm device for ensuring the safety of cranes, in order to solve the problems mentioned in the background art. Cranes generate high-frequency vibrations such as boom extension and retraction, and impacts from lifting heavy objects during hoisting operations, as well as low-frequency swaying due to the rotation of the whole machine and the influence of wind. When the tilt sensor is directly fixed to the equipment body, continuous vibration can easily cause fatigue damage to components such as strain gauges and laser modules inside the sensor, shortening their lifespan. It can also cause measurement data drift, leading to false alarms or missed alarms. At the same time, it may cause loose wiring terminals and fatigue breakage of cables, resulting in the failure of the monitoring system. In addition, harsh environments such as dust, rain, and high and low temperatures will aggravate the wear caused by vibration, further reducing reliability. Existing vibration damping solutions mostly use a single rubber pad or spring, which can only buffer unidirectional vibration and lacks protective structure, making it unable to cope with the complex multidimensional vibrations and environmental corrosion of cranes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a safety monitoring and alarm device for ensuring the safety of a crane, comprising a mounting frame, wherein a mounting box is slidably connected to the inner side of the mounting frame, and an inclination sensor is provided on the inner side of the mounting box;

[0007] The tilt sensor has symmetrically arranged side fixing plates on both sides, which are slidably connected to the inside of the mounting box. The tilt sensor has a bottom plate at the bottom, and multiple springs are provided on the side of the side fixing plate and the bottom of the bottom plate.

[0008] The mounting box is symmetrically fixedly connected with blocks on its inner side, and the blocks are located on the side of the side fixing plate.

[0009] As a preferred embodiment, the mounting box has a third threaded hole at each of its four corners, a filter plate is provided at the bottom of the mounting box, and the filter plate has holes at its four corners corresponding to the third threaded holes. The filter plate is fixedly connected to the bottom of the mounting box by bolts.

[0010] As a preferred embodiment, each of the four corners of the mounting bracket is fixedly connected with a mounting lug, the inner side of the mounting lug is provided with a first threaded hole, and the outer side of the mounting bracket is provided with a level tube.

[0011] As a preferred embodiment, the top of the mounting bracket is provided with a groove, the mounting box is provided correspondingly to the groove, both sides of the mounting side ear are provided with a sliding groove and a mounting groove, and the inner side of the mounting groove is provided with a second threaded hole.

[0012] As a preferred embodiment, slide rods are fixedly connected to both sides of the mounting box, and the slide rods are correspondingly arranged with the slide grooves, with the slide rods slidably connected to the inner side of the slide grooves.

[0013] As a preferred embodiment, the front end of the mounting box is symmetrically and fixedly connected with mounting blocks, and the mounting blocks are correspondingly arranged with the mounting slots.

[0014] As a preferred embodiment, the mounting block has a through hole on its inner side, and the through hole is correspondingly provided with the second threaded hole.

[0015] As a preferred embodiment, the top end of the side fixing plate is provided with a fourth threaded hole, the top end of the tilt sensor is provided with a hole corresponding to the fourth threaded hole, and the tilt sensor is fixedly connected to the top end of the side fixing plate by bolts.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model features a mounting box with an inclination sensor installed inside. Symmetrical side fixing plates are positioned on both sides of the inclination sensor, and a base plate is installed at the bottom of the sensor. Springs are installed on the sides of the side fixing plates and the bottom of the base plate. When the mounting box is impacted, the inclination sensor slides inside the mounting box. The springs effectively counteract the vibrations generated by the inclination sensor, providing cushioning and protection, and ensuring the safety of the inclination sensor in use.

[0018] 2. This utility model features an installation frame with a groove on its inner side. The groove has symmetrical sliding grooves on both sides, and sliding rods are symmetrically fixed to both sides of the installation box. The sliding rods correspond to the sliding grooves, facilitating the first installation and fixing of the installation frame to a suitable position on the crane. Then, the installation box is slidably engaged with the inner side of the groove, thus facilitating the limiting and fixing of the installation box and allowing for quick disassembly, improving the convenience of installation and disassembly. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the mounting bracket in this utility model;

[0021] Figure 3 This is a schematic diagram of the main structure of the mounting box in this utility model;

[0022] Figure 4 This is a schematic diagram of one of the rear views of the mounting box in this utility model;

[0023] Figure 5 This is a structural schematic diagram of the mounting box in reverse view of this utility model.

[0024] In the picture:

[0025] 1. Mounting bracket; 11. Mounting lug; 111. First threaded hole; 12. Level tube; 13. Groove; 14. Slide groove; 15. Mounting groove; 151. Second threaded hole;

[0026] 2. Install the housing; 21. Slide rod; 22. Filter plate; 23. Mounting block; 231. Through hole; 24. Third threaded hole; 25. Tilt sensor; 26. Side fixing plate; 261. Fourth threaded hole; 27. Spring; 28. Stop block; 29. ​​Base plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see the appendix Figure 1 - Appendix Figure 5 A safety monitoring and alarm device for ensuring the safety of a crane includes a mounting frame 1, a mounting box 2 slidably connected to the inner side of the mounting frame 1, and an tilt sensor 25 disposed on the inner side of the mounting box 2.

[0029] Side fixing plates 26 are symmetrically arranged on both sides of the tilt sensor 25. The side fixing plates 26 are slidably connected to the inner side of the mounting box 2. A bottom plate 29 is provided at the bottom of the tilt sensor 25. Multiple springs 27 are provided on the side of the side fixing plate 26 and the bottom of the bottom plate 29.

[0030] The inner side of the mounting box 2 is symmetrically fixed with blocks 28, which are located on the side of the side fixing plate 26.

[0031] Specifically, by setting up a mounting box 2, the tilt sensor 25 is installed inside the mounting box 2. Side fixing plates 26 are symmetrically arranged on both sides of the tilt sensor 25, and a base plate 29 is provided at the bottom of the tilt sensor 25. Springs 27 are provided on the sides of the side fixing plates 26 and the bottom of the base plate 29. Therefore, when the mounting box 2 is subjected to impact, the tilt sensor 25 will slide inside the mounting box 2. The springs 27 effectively counteract the vibration generated by the tilt sensor 25, effectively buffering and protecting the tilt sensor 25, and ensuring the safety of its use. A power supply is provided inside the mounting box 2 for power supply. The tilt sensor 25 is powered and is a device used to measure the tilt angle of an object relative to a horizontal plane. Its core principle is to calculate the tilt angle by detecting changes in gravity or inertial force. Specifically, it works based on gravity field detection, most commonly by utilizing the changes in the component of gravitational acceleration under different tilt states. For example, when the sensor tilts, the internal sensitive element will generate a physical signal due to the change in the gravitational component. Through circuit conversion and algorithm calculation, the tilt angle is directly output. The mounting box 2 can be connected to an alarm via wires or wireless transmission. When a large tilt angle occurs, the alarm will be triggered.

[0032] Please see the appendix Figure 3 and Figure 4 The four corners of the mounting box 2 are provided with third threaded holes 24. The bottom of the mounting box 2 is provided with a filter plate 22. The four corners of the filter plate 22 are provided with holes corresponding to the third threaded holes 24. The filter plate 22 is fixedly connected to the bottom of the mounting box 2 by bolts.

[0033] Specifically, by setting a filter plate 22 at the bottom of the mounting box 2, and setting a filter screen on the inner side of the filter plate 22, the tilt sensor 25 installed inside the mounting box 2 can be effectively protected to prevent dust from entering.

[0034] Please see the appendix Figure 1 Mounting bracket 1 has mounting lugs 11 fixedly connected to its four corners. The mounting lugs 11 have a first threaded hole 111 on their inner side and a level tube 12 on their outer side.

[0035] Specifically, mounting lugs 11 are fixedly connected to the four corners of the mounting frame 1. The inner side of the mounting lugs 11 is provided with a first threaded hole 111. A level tube 12 is provided on the outer side of the mounting frame 1, which makes it easy to fix the mounting frame 1 to the corresponding position of the crane through the mounting lugs 11. By setting the level tube 12, it is easy to check the levelness of the mounting frame 1 and to fix the mounting frame 1 completely horizontally.

[0036] Please see the appendix Figure 2 and Figure 3The top of the mounting bracket 1 is provided with a groove 13, and the mounting box 2 is correspondingly provided with the groove 13. The mounting side ears 11 are provided with sliding grooves 14 and mounting grooves 15 on both sides. The inner side of the mounting groove 15 is provided with a second threaded hole 151. The two sides of the mounting box 2 are fixedly connected with sliding rods 21, which are correspondingly provided with the sliding grooves 14. The sliding rods 21 are slidably connected to the inner side of the sliding grooves 14. The front end of the mounting box 2 is symmetrically fixedly connected with mounting blocks 23, which are correspondingly provided with the mounting grooves 15. The inner side of the mounting blocks 23 is provided with through holes 231, which are correspondingly provided with the second threaded holes 151.

[0037] Specifically, sliding rods 21 are fixedly connected to both sides of the mounting box 2, and the sliding rods 21 are correspondingly set to the sliding groove 14. The sliding rods 21 are slidably connected to the inner side of the sliding groove 14. Mounting blocks 23 are symmetrically fixedly connected to the front end of the mounting box 2, and the mounting blocks 23 are correspondingly set to the mounting groove 15. A through hole 231 is opened on the inner side of the mounting block 23, and the through hole 231 is correspondingly set to the second threaded hole 151. In actual use, the sliding rods 21 can be slid along the sliding groove 14 to the inner side of the sliding groove 14, so that the mounting box 2 is set inside the groove 13. After the mounting box 2 is completely set inside the groove 13, the mounting block 23 is set in the mounting groove 15. The through hole 231 is correspondingly set to the second threaded hole 151, so that the mounting block 23 is effectively installed and fixed to the inner side of the mounting groove 15 by bolts, thereby effectively fixing the mounting box 2 to the inner side of the groove 13.

[0038] Please see the appendix Figure 4 and Figure 5 The top of the side fixing plate 26 is provided with a fourth threaded hole 261, and the top of the tilt sensor 25 is provided with a hole corresponding to the fourth threaded hole 261. The tilt sensor 25 is fixedly connected to the top of the side fixing plate 26 by bolts.

[0039] Specifically, a fourth threaded hole 261 is provided at the top of the side fixing plate 26, and a hole corresponding to the fourth threaded hole 261 is provided at the top of the tilt sensor 25. The tilt sensor 25 is fixedly connected to the top of the side fixing plate 26 by bolts, which facilitates the fixed connection of the tilt sensor 25 to the top of the side fixing plate 26, so that the tilt sensor 25 can effectively follow the side fixing plate 26 to move.

[0040] The working principle of this utility model is as follows: In specific use, sliding rods 21 are fixedly connected to both sides of the mounting box 2, and the sliding rods 21 are correspondingly set with the sliding grooves 14. The sliding rods 21 are slidably connected to the inner side of the sliding grooves 14. Mounting blocks 23 are symmetrically fixedly connected to the front end of the mounting box 2, and the mounting blocks 23 are correspondingly set with the mounting grooves 15. A through hole 231 is opened on the inner side of the mounting block 23, and the through hole 231 is correspondingly set with the second threaded hole 151. In specific use, the sliding rods 21 can be slid along the sliding grooves 14 to... The inner side of the slide groove 14 allows the mounting box 2 to be set inside the groove 13. After the mounting box 2 is completely set inside the groove 13, the mounting block 23 is set in the mounting groove 15. The through hole 231 is set in correspondence with the second threaded hole 151, so that the mounting block 23 can be effectively installed and fixed to the inner side of the mounting groove 15 by bolts, thereby effectively fixing the mounting box 2 to the inner side of the groove 13, which facilitates quick disassembly of the mounting box 2 and improves the convenience of installation and disassembly of the mounting box 2.

[0041] Mounting bracket 1 has mounting lugs 11 fixedly connected to its four corners. Each mounting lug 11 has a first threaded hole 111 on its inner side. A level tube 12 is provided on the outer side of the mounting bracket 1, facilitating the fixing of the mounting bracket 1 to the corresponding position on the crane via the mounting lugs 11. The level tube 12 allows for easy inspection of the mounting bracket 1's levelness, ensuring a completely horizontal installation. An inclination sensor 25 is located inside the mounting housing 2, with side fixing plates 26 symmetrically arranged on both sides. A base plate 29 is provided at the bottom of the inclination sensor 25. Springs 27 are provided on the sides of the mounting box 26 and the bottom of the base plate 29. When the mounting box 2 is impacted, the tilt sensor 25 will slide inside the mounting box 2. The effect of the springs 27 can effectively counteract the vibration generated by the tilt sensor 25, effectively buffering and protecting the tilt sensor 25, and effectively ensuring the safety of the tilt sensor 25. The mounting box 2 is equipped with a power supply to power the tilt sensor 25. The mounting box 2 can be connected to the alarm via wire or wireless transmission. When a large tilt angle occurs, the alarm will be triggered.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety monitoring and alarm device for ensuring the safety of cranes, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is slidably connected to the inner side of the mounting box (2), and the inner side of the mounting box (2) is provided with an angle sensor (25); The tilt sensor (25) has symmetrically arranged side fixing plates (26) on both sides. The side fixing plates (26) are slidably connected to the inner side of the mounting box (2). The tilt sensor (25) has a bottom plate (29) at the bottom end. Both the side of the side fixing plate (26) and the bottom end of the bottom plate (29) are provided with multiple springs (27). The mounting box (2) is symmetrically fixedly connected with a stop (28) on the inner side, and the stop (28) is located on the side of the side fixing plate (26).

2. The safety monitoring and alarm device for ensuring crane safety according to claim 1, characterized in that: The mounting box (2) has a third threaded hole (24) at each of its four corners. A filter plate (22) is provided at the bottom of the mounting box (2). The filter plate (22) has holes at its four corners that correspond to the third threaded holes (24). The filter plate (22) is fixedly connected to the bottom of the mounting box (2) by bolts.

3. A safety monitoring and alarm device for ensuring crane safety according to claim 2, characterized in that: The mounting bracket (1) is fixedly connected to four corners with mounting ears (11), and the inner side of the mounting ears (11) is provided with a first threaded hole (111). The outer side of the mounting bracket (1) is provided with a level tube (12).

4. A safety monitoring and alarm device for ensuring crane safety according to claim 3, characterized in that: The top of the mounting bracket (1) is provided with a groove (13), and the mounting box (2) is provided in correspondence with the groove (13). The mounting side ear (11) is provided with a sliding groove (14) and a mounting groove (15) on both sides. The inner side of the mounting groove (15) is provided with a second threaded hole (151).

5. A safety monitoring and alarm device for ensuring crane safety according to claim 4, characterized in that: Both sides of the mounting box (2) are fixedly connected with slide rods (21), and the slide rods (21) are correspondingly arranged with the slide groove (14). The slide rods (21) are slidably connected to the inner side of the slide groove (14).

6. A safety monitoring and alarm device for ensuring crane safety according to any one of claims 1-5, characterized in that: The front end of the mounting box (2) is symmetrically fixedly connected with mounting blocks (23), and the mounting blocks (23) are correspondingly set with the mounting grooves (15).

7. A safety monitoring and alarm device for ensuring crane safety according to claim 6, characterized in that: The mounting block (23) has a through hole (231) on its inner side, and the through hole (231) is correspondingly provided with the second threaded hole (151).

8. A safety monitoring and alarm device for ensuring crane safety according to claim 7, characterized in that: The top of the side fixing plate (26) is provided with a fourth threaded hole (261), and the top of the tilt sensor (25) is provided with a hole corresponding to the fourth threaded hole (261). The tilt sensor (25) is fixedly connected to the top of the side fixing plate (26) by bolts.

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