Advanced detection early warning device for monorail crane
By designing a gear structure on the monorail to drive infrared sensors for all-around detection and equipping it with an alarm system, the problem of insufficient lateral position detection of the monorail is solved, thereby improving safety and accident prevention capabilities.
Patent Information
- Application Number
- CN202423255806.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-28
AI Technical Summary
Existing monorail distance sensors can only detect obstacles in front of the crane during operation, and their ability to detect lateral movement is weak, which increases the risk of accidents.
Design an advanced detection and early warning device that uses a gear structure to drive an infrared distance sensor to rotate and detect objects. It can continuously detect objects in different directions and is equipped with an alarm system to provide real-time alerts when obstacles are detected.
It enables wide-angle detection in front and to the sides, improving the safety of the monorail and ensuring that operators can take timely measures to avoid collisions.
Smart Images

Figure CN223534731U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tunnel detection and early warning, specifically an advanced detection and early warning device for monorail gantry cranes. Background Technology
[0002] A monorail is a transport device that runs along a specific track. It uses a specially made I-beam suspended above the tunnel as a track, and consists of a series of crane vehicles with various functions connected together. The trains are pulled along the track by traction equipment.
[0003] To ensure safety during operation, existing monorail gantry cranes typically utilize distance sensors for early warning detection to prevent collisions with surrounding obstacles or equipment. However, current distance sensors have limitations. Most can only detect obstacles in front of the monorail, with relatively weak lateral detection capabilities. This means that if the monorail encounters obstacles or unexpected situations on its side, the distance sensors may fail to issue timely warnings, increasing the risk of accidents. Utility Model Content
[0004] The purpose of this invention is to provide an advanced detection and early warning device for monorail cranes to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an advanced detection and early warning device for a monorail crane, comprising a suspension support structure, a fixing structure, and a detection structure. The suspension support structure is fixed to the top of the fixing structure with bolts, and the detection structure is fixedly connected to the bottom of the fixing structure. The detection structure includes a stepper motor, a main gear, an auxiliary gear, and a gear ring. The output shaft of the stepper motor is fixedly connected to the main gear. The auxiliary gear has two sets and meshes with the main gear. The gear ring meshes with the two sets of auxiliary gears.
[0006] Preferably, the suspension support structure includes a single set of suspension plates, track wheels, and support rods. There are two sets of single suspension plates, and both sets of single suspension plates are fixed to the top of the fixed structure with bolts. The two sets of single suspension plates are fixed to each other with bolts. There are two sets of track wheels, which are rotatably connected to the inner top of the corresponding single suspension plate. There are two sets of support rods, which are fixedly connected to the bottom of the corresponding single suspension plate.
[0007] Preferably, the fixing structure includes a fixing plate, an alarm light, a power supply, and a slide groove. The alarm light is installed on one side of the top of the fixing plate, the power supply is installed on the other side of the top of the fixing plate, and the slide groove is annular and is formed at the bottom of the fixing plate.
[0008] Preferably, the detection structure further includes a fixed rod, a cylindrical slider, and an infrared distance sensor. The fixed rod is provided in two sets, and both sets of the fixed rod are fixed between the fixed disk and the corresponding gear ring. The cylindrical slider is provided in two sets, and the bottom of the two sets of cylindrical sliders is fixed inside the corresponding auxiliary gear. The top of the two sets of cylindrical sliders is slidably connected inside the slide groove. The infrared distance sensor is provided in two sets and is fixedly connected to the bottom end of the corresponding cylindrical slider.
[0009] Preferably, the power supply is electrically connected to the alarm light, the stepper motor, and the infrared distance sensor.
[0010] Preferably, the detection structure and the fixed structure are fixedly connected by fixing the fixing rod to the bottom end of the fixed plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This utility model proposes an advanced detection and early warning device for monorail cranes. The device utilizes a built-in gear structure to drive a built-in infrared distance sensor to rotate and detect distances in real time from different directions. Compared with the previous detection method that only faces forward, the detection angle is wider. It also has a built-in alarm system that can issue a real-time alarm when an obstacle is detected, reminding the operator to pay attention and take appropriate measures, thereby improving the safety of use. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings:
[0014] Figure 1 This is a schematic diagram of the advanced detection and early warning device for monorail cranes according to this utility model. Figure 1 ;
[0015] Figure 2 This is a schematic diagram of the advanced detection and early warning device for monorail cranes according to this utility model. Figure 2 ;
[0016] Figure 3 This is a schematic diagram of the advanced detection and early warning device for monorail cranes according to this utility model. Figure 3 .
[0017] As shown in the figure: 1. Suspension support structure; 11. Single suspension plate; 12. Track wheel; 13. Support rod; 2. Fixing structure; 21. Fixing plate; 22. Alarm light; 23. Power supply; 24. Slide groove; 3. Detection structure; 31. Stepper motor; 32. Main gear; 33. Auxiliary gear; 34. Gear ring; 35. Fixing rod; 36. Cylindrical slider; 37. Infrared distance sensor. Detailed Implementation
[0018] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.
[0019] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0020] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two entities connected are not linked by an intermediate structure but are connected as a whole through a transmission structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0022] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0023] Please see Figures 1 to 3This utility model provides a technical solution: an advanced detection and early warning device for monorail cranes, including a suspension support structure 1, a fixed structure 2, and a detection structure 3. The suspension support structure 1 is fixed to the top of the fixed structure 2 by bolts, and the detection structure 3 is fixedly connected to the bottom of the fixed structure 2. The detection structure 3 includes a stepper motor 31, a main gear 32, an auxiliary gear 33, and a gear ring 34. The output shaft of the stepper motor 31 is fixedly connected to the main gear 32. The auxiliary gear 33 is provided in two sets and meshes with the main gear 32. The gear ring 34 meshes with the two sets of auxiliary gears 33.
[0024] This detection and early warning device utilizes a built-in gear structure to drive the built-in infrared distance sensor 37 to rotate and detect. It can continuously detect distances in different directions in real time, providing a wider detection angle compared to the previous detection method that only faces forward. It also has a built-in alarm system that can issue a real-time alarm when an obstacle is detected, reminding the operator to pay attention and take appropriate measures, thus improving safety.
[0025] The suspension support structure 1 includes a single suspension plate 11, a track wheel 12, and a support rod 13. There are two sets of single suspension plates 11, and both sets of single suspension plates 11 are fixed to the top of the fixed structure 2 with bolts. The two sets of single suspension plates 11 are fixed to each other with bolts. There are two sets of track wheels 12, which are rotatably connected to the inner side of the top of the corresponding single suspension plate 11. There are two sets of support rods 13, which are fixedly connected to the bottom of the corresponding single suspension plate 11.
[0026] When in use, the support rod 13 is fixed to the top of the crane and moves by sliding two sets of track wheels 12 on the surface of the track rope. A single set of suspension plates 11 limits and fixes the track wheels 12 to prevent them from loosening and falling during travel.
[0027] The fixed structure 2 includes a fixed plate 21, an alarm light 22, a power supply 23, and a slide 24. The alarm light 22 is installed on one side of the top of the fixed plate 21, the power supply 23 is installed on the other side of the top of the fixed plate 21, and the slide 24 is annular and is opened at the bottom of the fixed plate 21.
[0028] The detection structure 3 also includes a fixed rod 35, a cylindrical slider 36, and an infrared distance sensor 37. There are two sets of fixed rods 35, and both sets of fixed rods 35 are fixed between the fixed plate 21 and the corresponding gear ring 34. There are two sets of cylindrical sliders 36, and the bottom of the two sets of cylindrical sliders 36 is fixed inside the corresponding auxiliary gear 33. The top of the two sets of cylindrical sliders 36 is slidably connected inside the slide groove 24. There are two sets of infrared distance sensors 37 and they are fixedly connected to the bottom of the corresponding cylindrical sliders 36.
[0029] The detection structure 3 and the fixed structure 2 are fixedly connected by fixing the fixed rod 35 to the bottom of the fixed plate 21;
[0030] In use, the stepper motor 31 is fixed to the top of the crane. The stepper motor 31 drives the main gear 32 to rotate, and the main gear 32 drives two sets of auxiliary gears 33 to rotate in the gear ring 34. At this time, the two sets of infrared distance sensors 37 rotate synchronously to detect the tunnel. The rotating detection method can not only detect obstacles in front, but also detect obstacles in the side. Some obstacles that are small in the side can also be detected. The overall detection range is wider, the detection efficiency is higher, and the safety of use is improved.
[0031] Power supply 23 is electrically connected to alarm light 22, stepper motor 31 and infrared distance sensor 37;
[0032] Infrared distance sensor 37 is responsible for emitting and receiving light signals to detect obstacles ahead. The built-in processor module calculates the distance and position information and compares it with a preset threshold. If the distance to the obstacle ahead is less than the preset threshold, or if the obstacle is located in a danger zone, the processor module will determine that there is a potential danger and trigger the alarm light 22 to emit an audible and visual alarm signal. When the operator receives the alarm signal, he should immediately take corresponding measures, such as slowing down, stopping, or detouring, to avoid collisions or accidents with the obstacle ahead.
[0033] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0034] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A forward detection and early warning device for monorail cranes, characterized in that: The device includes a suspension support structure (1), a fixed structure (2), and a detection structure (3). The suspension support structure (1) is fixed to the top of the fixed structure (2) with bolts. The detection structure (3) is fixedly connected to the bottom of the fixed structure (2). The detection structure (3) includes a stepper motor (31), a main gear (32), an auxiliary gear (33), and a gear ring (34). The output shaft of the stepper motor (31) is fixedly connected to the main gear (32). The auxiliary gear (33) has two sets and meshes with the main gear (32). The gear ring (34) meshes with the two sets of auxiliary gears (33).
2. The advanced detection and early warning device for monorail cranes according to claim 1, characterized in that: The suspension support structure (1) includes a single set of suspension plates (11), track wheels (12) and support rods (13). There are two sets of single sets of suspension plates (11). Both sets of single sets of suspension plates (11) are fixed to the top of the fixed structure (2) by bolts. The two sets of single sets of suspension plates (11) are fixed to each other by bolts. There are two sets of track wheels (12) and they are rotatably connected to the inner side of the top of the corresponding single set of suspension plates (11). There are two sets of support rods (13) and they are fixedly connected to the bottom of the corresponding single set of suspension plates (11).
3. The advanced detection and early warning device for monorail cranes according to claim 2, characterized in that: The fixed structure (2) includes a fixed plate (21), an alarm light (22), a power supply (23), and a slide (24). The alarm light (22) is installed on one side of the top of the fixed plate (21), the power supply (23) is installed on the other side of the top of the fixed plate (21), and the slide (24) is annular and is located at the bottom of the fixed plate (21).
4. The advanced detection and early warning device for monorail cranes according to claim 3, characterized in that: The detection structure (3) also includes a fixed rod (35), a cylindrical slider (36), and an infrared distance sensor (37). The fixed rod (35) is provided in two sets, and both sets of the fixed rod (35) are fixed between the fixed disk (21) and the corresponding gear ring (34). The cylindrical slider (36) is provided in two sets, and the bottom of the two sets of cylindrical sliders (36) is fixed inside the corresponding auxiliary gear (33). The top of the two sets of cylindrical sliders (36) is slidably connected inside the slide groove (24). The infrared distance sensor (37) is provided in two sets and is fixedly connected to the bottom of the corresponding cylindrical slider (36).
5. The advanced detection and early warning device for monorail cranes according to claim 4, characterized in that: The power supply (23) is electrically connected to the alarm light (22), the stepper motor (31), and the infrared distance sensor (37).
6. The advanced detection and early warning device for monorail cranes according to claim 5, characterized in that: The detection structure (3) and the fixed structure (2) are fixedly connected by fixing the fixed rod (35) to the bottom end of the fixed plate (21).