Cantilever crane assembly for mounting and maintaining davit and detecting slope in tunnel

Abstract

A cantilever crane assembly for installation, maintenance and slope detection of a davit in a tunnel comprises a rotary base, a first adjustable arm set installed on the rotary base in the vertical direction and a second adjustable arm set movably connected with the first adjustable arm set through an opening and closing mechanism, and the free end of the second adjustable arm set is fixedly connected with a fixing frame. A manned operation platform is hinged to the fixing frame, a leveling mechanism is arranged between the manned operation platform and the fixing frame, the manned operation platform is of a surrounding type box body structure, and anti-collision sensors are installed on the three side faces, away from the second adjustable arm set, of the box body; the cantilever crane assembly detects obstacles near the manned work platform in real time through the ultrasonic sensor, early warning is carried out in advance when the approaching obstacles are detected, the inclination angle of the manned work platform is detected in real time through the inclination angle sensor, and the leveling oil cylinder is controlled by the upper computer through algorithm compensation. The manned operation platform can be always kept parallel to the ground in real time.

Description

Technical Field

[0001] This utility model relates to a boom assembly for the installation, maintenance and slope detection of suspended columns in tunnels. Background Technology

[0002] High-speed railway tunnels are equipped with suspended columns. The installation of these columns requires the assistance of a manned work platform for timely positioning and adjustments. Regular inspection and maintenance, such as periodic slope checks, are also necessary after installation. While various boom assemblies are publicly available, specialized equipment is still required for operations in such challenging environments. Furthermore, existing boom assemblies generally lack collision avoidance sensors, making it easy for collisions and other safety accidents to occur when adjusting the position of the manned work platform in confined spaces like high-speed railway tunnels, potentially causing equipment damage or even personal injury. This solution was developed to address the installation and maintenance of suspended columns within high-speed railway tunnels and prevent such accidents. Summary of the Invention

[0003] To address the shortcomings mentioned above, this utility model provides a boom assembly for the installation, maintenance, and slope detection of suspended columns in tunnels.

[0004] To achieve the above objectives, this utility model provides a boom assembly for the installation, maintenance, and slope detection of suspended columns in tunnels, including a slewing base, a first adjustable boom assembly mounted vertically on the slewing base, and a second adjustable boom assembly movably connected to the first adjustable boom assembly via an opening and closing mechanism. A fixed frame is fixedly connected to the free end of the second adjustable boom assembly, and a manned work platform is hinged to the fixed frame. A leveling mechanism is provided between the manned work platform and the fixed frame. The manned work platform has an enclosed box structure, and anti-collision sensors are installed on the three sides of the box away from the second adjustable boom assembly.

[0005] Furthermore, the first adjustable boom assembly includes a vertical lifting first section, a vertical lifting second section, a vertical lifting third section, and a vertical multi-stage hydraulic cylinder. The vertical lifting first section, the vertical lifting second section, and the vertical lifting third section are nested together to form a three-section telescopic structure. The vertical multi-stage hydraulic cylinder is used for vertical lifting adjustment of the vertical lifting first section, the vertical lifting second section, and the vertical lifting third section.

[0006] Furthermore, the second adjustable boom assembly includes a horizontal telescopic first section, a horizontal telescopic second section, a horizontal telescopic third section, and a horizontal multi-stage hydraulic cylinder. The horizontal telescopic first section, the horizontal telescopic second section, and the horizontal telescopic third section are interlocked to form a three-section telescopic structure. The horizontal multi-stage hydraulic cylinder is used for horizontal telescopic adjustment of the horizontal telescopic first section, the horizontal telescopic second section, and the horizontal telescopic third section.

[0007] Furthermore, the opening and closing mechanism includes a horizontal opening support fixed on the vertical lifting third section and a pivot disposed on the horizontal opening support. The horizontal telescopic first section forms a rotatable structure with the vertical lifting third section via the pivot. The opening and closing mechanism also includes an opening and closing cylinder. One end of the opening and closing cylinder is hinged to the horizontal opening support, and the other end of the opening and closing cylinder is hinged to the horizontal telescopic first section.

[0008] Furthermore, the leveling mechanism includes a tilt sensor and a leveling cylinder configured on the manned work platform. One end of the leveling cylinder is hinged to the fixed frame, and the other end of the leveling cylinder is hinged to the manned work platform.

[0009] Furthermore, the anti-collision sensor is an ultrasonic sensor with a conical detection range. The maximum detection distance and maximum detection diameter of the ultrasonic sensor are both three meters.

[0010] The advantages of this utility model over the prior art are as follows:

[0011] This boom assembly uses ultrasonic sensors to detect obstacles near the manned work platform in real time. It provides early warnings when obstacles are detected at close range to prevent the manned work platform from colliding with objects inside the tunnel and avoiding danger. It also uses tilt sensors to detect the tilt angle of the manned work platform in real time. The host computer controls the leveling cylinder through algorithm compensation, which can keep the manned work platform parallel to the ground in real time. It has the advantages of wide working range and compact structure. This boom assembly is mainly used for the auxiliary installation of suspended columns inside high-speed railway tunnels, slope detection, and daily maintenance of suspended columns. Attached Figure Description

[0012] Figure 1 A perspective view of a boom assembly used for the installation, maintenance, and slope detection of suspended columns in tunnels;

[0013] Figure 2 A schematic diagram of the first adjustable boom assembly involved. Figure 1 ;

[0014] Figure 3 A schematic diagram of the first adjustable boom assembly involved. Figure 2 ;

[0015] Figure 4 This is a schematic diagram of the second adjustable arm assembly involved;

[0016] Figure 5 A connection diagram of the manned work platform and leveling mechanism involved. Figure 1 ;

[0017] Figure 6 A connection diagram of the manned work platform and leveling mechanism involved. Figure 2 .

[0018] In the diagram: 1. Rotary base; 2. First adjustable boom assembly; 21. Vertical lifting section 1; 22. Vertical lifting section 2; 23. Vertical lifting section 3; 24. Vertical multi-stage hydraulic cylinder; 3. Opening and closing mechanism; 31. Horizontal opening support; 32. Pivot; 33. Opening and closing cylinder; 4. Second adjustable boom assembly; 41. Horizontal telescopic section 1; 42. Horizontal telescopic section 2; 43. Horizontal telescopic section 3; 44. Horizontal multi-stage hydraulic cylinder; 5. Fixed frame; 6. Leveling mechanism; 61. Tilt sensor; 62. Leveling cylinder; 7. Manned work platform; 8. Collision avoidance sensor. Detailed Implementation

[0019] like Figures 1-6As shown in the figure, a boom assembly for installing, maintaining, and detecting the inclination of a suspended column in a tunnel according to an embodiment of the present invention includes a slewing base 1, a first adjustable boom assembly 2 mounted vertically on the slewing base 1, and a second adjustable boom assembly 4 movably connected to the first adjustable boom assembly 2 via an opening and closing mechanism 3. A fixed frame 5 is fixedly connected to the free end of the second adjustable boom assembly 4, and a manned work platform 7 is hinged to the fixed frame 5. A leveling mechanism 6 is provided between the manned work platform 7 and the fixed frame 5. The manned work platform 7 has an enclosed box structure, and the three sides of the box away from the second adjustable boom assembly 4 are... All are equipped with anti-collision sensors 8; the first adjustable boom assembly 2 includes a vertical lifting first section 21, a vertical lifting second section 22, a vertical lifting third section 23 and a vertical multi-stage hydraulic cylinder 24, the vertical lifting first section 21, vertical lifting second section 22, and vertical lifting third section 23 are nested together to form a three-section telescopic structure, the vertical multi-stage hydraulic cylinder 24 is used for the vertical lifting adjustment of the vertical lifting first section 21, vertical lifting second section 22, and vertical lifting third section 23; the second adjustable boom assembly 4 includes a horizontal telescopic first section 41, horizontal telescopic second section 42, horizontal telescopic third section 43 and a horizontal Multi-stage hydraulic cylinder 44 consists of a horizontal telescopic first section 41, a horizontal telescopic second section 42, and a horizontal telescopic third section 43, which are interlocked to form a three-section telescopic structure. The horizontal multi-stage hydraulic cylinder 44 is used for adjusting the horizontal telescopic extension and retraction of the first, second, and third sections 41 and 43. Opening and closing mechanism 3 includes a horizontal opening support 31 fixed to the vertically lifting third section 23 and a pivot 32 mounted on the horizontal opening support 31. The horizontal telescopic first section 41 is rotatable with the vertically lifting third section 23 via the pivot 32. Opening and closing mechanism 3 also includes opening and closing hydraulic fluid. The cylinder 33 has one end hinged to the horizontal opening support 31 and the other end hinged to the horizontal telescopic first section 41. The leveling mechanism 6 includes an inclination sensor 61 and a leveling cylinder 62 mounted on the manned work platform 7. One end of the leveling cylinder 62 is hinged to the fixed frame 5 and the other end is hinged to the manned work platform 7. The anti-collision sensor 8 is an ultrasonic sensor with a conical detection range. The maximum detection distance and maximum detection diameter of the ultrasonic sensor are both three meters.

[0020] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any 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 boom assembly for installing, maintaining, and detecting inclination of suspended columns in tunnels, characterized in that: The system includes a rotating base (1), a first adjustable arm assembly (2) mounted vertically on the rotating base (1), and a second adjustable arm assembly (4) connected to the first adjustable arm assembly (2) via an opening and closing mechanism (3). A fixed frame (5) is fixedly connected to the free end of the second adjustable arm assembly (4). A manned work platform (7) is hinged to the fixed frame (5). A leveling mechanism (6) is provided between the manned work platform (7) and the fixed frame (5). The manned work platform (7) has an enclosed box structure. Anti-collision sensors (8) are installed on the three sides of the box away from the second adjustable arm assembly (4).

2. The boom assembly for installation, maintenance, and slope detection of suspended columns in tunnels according to claim 1, characterized in that: The first adjustable boom assembly (2) includes a vertical lifting first section (21), a vertical lifting second section (22), a vertical lifting third section (23), and a vertical multi-stage hydraulic cylinder (24). The vertical lifting first section (21), the vertical lifting second section (22), and the vertical lifting third section (23) are nested together to form a three-section telescopic structure. The vertical multi-stage hydraulic cylinder (24) is used for the vertical lifting adjustment of the vertical lifting first section (21), the vertical lifting second section (22), and the vertical lifting third section (23).

3. The boom assembly for installation, maintenance, and slope detection of suspended columns in tunnels according to claim 2, characterized in that: The second adjustable boom assembly (4) includes a horizontal telescopic first section (41), a horizontal telescopic second section (42), a horizontal telescopic third section (43), and a horizontal multi-stage hydraulic cylinder (44). The horizontal telescopic first section (41), the horizontal telescopic second section (42), and the horizontal telescopic third section (43) are fitted together to form a three-section telescopic structure. The horizontal multi-stage hydraulic cylinder (44) is used for the horizontal telescopic adjustment of the horizontal telescopic first section (41), the horizontal telescopic second section (42), and the horizontal telescopic third section (43).

4. A boom assembly for installation, maintenance, and inclination detection of suspended columns in tunnels according to claim 3, characterized in that: The opening and closing mechanism (3) includes a horizontal opening support (31) fixed on the vertical lifting third section (23) and a pivot (32) disposed on the horizontal opening support (31). The horizontal telescopic first section (41) forms a rotatable structure with the vertical lifting third section (23) via the pivot (32). The opening and closing mechanism (3) also includes an opening and closing cylinder (33). One end of the opening and closing cylinder (33) is hinged to the horizontal opening support (31), and the other end of the opening and closing cylinder (33) is hinged to the horizontal telescopic first section (41).

5. A boom assembly for installation, maintenance, and inclination detection of suspended columns in tunnels according to claim 4, characterized in that: The leveling mechanism (6) includes an angle sensor (61) and a leveling cylinder (62) configured on the manned work platform (7). One end of the leveling cylinder (62) is hinged to the fixed frame (5), and the other end of the leveling cylinder (62) is hinged to the manned work platform (7).

6. A boom assembly for installation, maintenance, and inclination detection of suspended columns in tunnels according to claim 5, characterized in that: The anti-collision sensor (8) is an ultrasonic sensor. The detection range of the ultrasonic sensor is conical. The maximum detection distance and the maximum detection diameter of the ultrasonic sensor are both three meters.

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