Tunnel inspection vehicle portable steering device

Abstract

The application relates to a portable steering device of a tunnel detection vehicle, belonging to the field of tunnel detection, which comprises a steering frame, a lifting unit, a steering disc, a rotating unit and a connecting assembly. The lifting unit is arranged on the steering frame and is used for driving the steering disc to lift, the steering disc is rotatably arranged on the lifting unit, the rotating unit is arranged on the lifting unit and is used for driving the steering disc to rotate, and the connecting assembly is arranged on the steering disc and is used for being connected to a chassis of the tunnel detection vehicle. The application has the effect of improving the steering and reversing efficiency of the tunnel detection vehicle, thereby improving the efficiency of tunnel detection operation.

Description

Technical Field

[0001] This application relates to the field of tunnel inspection, and in particular to a portable steering device for a tunnel inspection vehicle. Background Technology

[0002] Tunnel inspection vehicles are important equipment in tunnel construction and maintenance, used to inspect the internal structure, cracks, and seepage of tunnels. As tunnel projects become deeper, longer, and more complex, tunnel inspection vehicles need to turn and change direction in confined spaces to complete comprehensive inspections.

[0003] Currently, due to the confined space within tunnels and the limited flexibility of tunnel inspection vehicles' steering systems (resulting in large turning radii), it is difficult for them to turn and change direction independently within the tunnel. Furthermore, it is difficult to use lifting equipment to lift and rotate the tunnel inspection vehicles within the tunnel. Therefore, turning and changing direction within tunnels typically involves disassembling multiple components of the vehicle to reduce its weight and size, performing the turning and changing, and then reassembling the disassembled components to complete the turning and changing operation. This results in low efficiency for turning and changing direction, significantly impacting the efficiency of tunnel inspection work. Utility Model Content

[0004] To improve the efficiency of tunnel inspection operations, this application provides a portable steering device for a tunnel inspection vehicle.

[0005] The portable steering device for a tunnel inspection vehicle provided in this application adopts the following technical solution: A portable steering device for a tunnel inspection vehicle includes a bogie, a lifting unit, a steering wheel, a rotating unit, and a connecting assembly. The lifting unit is mounted on the bogie and is used to drive the steering wheel to move up and down. The steering wheel is rotatably mounted on the lifting unit. The rotating unit is mounted on the lifting unit and is used to drive the steering wheel to rotate. The connecting assembly is mounted on the steering wheel and is used to connect to the chassis of the tunnel inspection vehicle.

[0006] By adopting the above technical solution, construction workers install the bogie in front of the tunnel inspection vehicle in the direction of travel. The lifting unit drives the steering wheel down. After the tunnel inspection vehicle moves above the steering wheel, the lifting unit drives the steering wheel up again. The connecting plate is connected to the chassis of the tunnel inspection vehicle through the connecting component. Then, the lifting unit drives the steering wheel up again. After the steering wheel lifts the tunnel inspection vehicle, the rotation unit can drive the steering wheel to rotate. The steering wheel can then drive the tunnel inspection vehicle to turn or change direction, improving the efficiency of the tunnel inspection vehicle's turning and changing direction, thereby improving the efficiency of tunnel inspection operations.

[0007] Optionally, the lifting unit is provided with a guide plate, the guide plate has an annular groove along the rotation path of the steering wheel, and the steering wheel is provided with a guide wheel, which is slidably embedded in the annular groove.

[0008] By adopting the above technical solution, during the steering wheel rotation process, the guide wheel rotates in the annular groove, and the annular groove guides the guide wheel, thereby guiding the rotation of the steering wheel and effectively improving the stability of the steering wheel during the rotation process.

[0009] Optionally, the connecting assembly includes a plurality of connecting pins, all of which are disposed on the steering wheel and are used to pass through to the chassis of the tunnel inspection vehicle.

[0010] By adopting the above technical solution, the steering wheel drives multiple connecting pins to move toward the chassis of the tunnel inspection vehicle, so that the multiple connecting pins can be inserted into the chassis of the tunnel inspection vehicle, thus facilitating the connection between the steering wheel and the tunnel inspection vehicle.

[0011] Optionally, the lifting unit includes a hydraulic cylinder, which is mounted on the bogie, and the piston rod of the hydraulic cylinder is connected to the guide plate.

[0012] By adopting the above technical solution, the hydraulic cylinder is activated, and the piston rod of the hydraulic cylinder extends and retracts, which drives the guide plate to move the steering wheel up and down.

[0013] Optionally, the rotating unit includes a rotating motor, which is mounted on a guide plate and coaxially connected to the steering plate.

[0014] By adopting the above technical solution, the rotation motor is started, and the output shaft of the rotation motor can drive the steering wheel to rotate.

[0015] Optionally, the bogie is provided with a support mechanism for providing horizontal support to the bogie.

[0016] By adopting the above technical solution, the support mechanism provides horizontal support for the bogie, making it easier for construction personnel to install the bogie horizontally.

[0017] Optionally, the support mechanism includes support bolts and support nuts. Multiple support bolts are slidably inserted through the bogie and anchored to the ground. Multiple support nuts are threaded onto the support bolts and are located on both sides of the bogie.

[0018] By adopting the above technical solution, the construction personnel first anchor multiple support bolts to the ground, then move the bogie so that all the support bolts pass through the bogie, and then tighten the support nuts so that the support nuts on both sides of the bogie are pressed against the two sides of the bogie, thus positioning and installing the bogie. Subsequently, the levelness of the bogie can be adjusted by tightening the support nuts.

[0019] Optionally, the support mechanism includes multiple support feet, and the array of multiple support feet is arranged on the bogie. Each support foot includes a support sleeve, a support rod, a screw, a worm gear, and a worm. The support sleeve is arranged on the bogie, the support rod is slidably inserted into the support sleeve, the screw is rotatably arranged on the support sleeve and threadedly connected to the support rod, the worm gear is coaxially arranged on the screw, and the worm is rotatably arranged on the support sleeve and meshes with the worm gear.

[0020] By adopting the above technical solution, the construction personnel move the bogie to the set position so that multiple support feet are in contact with the ground. Then, they turn the worm gear, which drives the worm wheel to rotate. The worm wheel drives the screw to rotate, and the screw can drive the support rod to move relative to the support sleeve, thereby adjusting the length of one of the support feet and thus conveniently adjusting the level of the bogie.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The lifting unit drives the steering wheel to move upward again. After the steering wheel lifts the tunnel inspection vehicle, the rotation unit can drive the steering wheel to rotate. The steering wheel can then drive the tunnel inspection vehicle to turn or change direction, improving the efficiency of the tunnel inspection vehicle's turning and changing direction, thereby improving the efficiency of tunnel inspection operations. 2. The ring groove guides the guide wheel, which in turn guides the rotation of the steering wheel, effectively improving the stability of the steering wheel during rotation; 3. The levelness of the bogie can be adjusted by turning the support nut. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the portable steering device for a tunnel inspection vehicle according to Embodiment 1 of this application.

[0023] Figure 2 This is a schematic diagram of the guide wheel and steering wheel of Embodiment 1 of this application (partial cross-section of the steering wheel is shown in the figure).

[0024] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0025] Figure 4 This is a schematic diagram of the support foot of Embodiment 1 of this application (partial cross-section of the support sleeve is shown in the figure).

[0026] Reference numerals: 1. Bogie; 2. Lifting unit; 21. Hydraulic cylinder; 3. Steering wheel; 4. Rotating unit; 41. Rotating motor; 5. Connecting assembly; 51. Connecting pin; 6. Guide plate; 61. Annular groove; 7. Guide wheel; 8. Support mechanism; 81. Support bolt; 82. Support nut; 83. Support foot; 831. Support sleeve; 832. Support rod; 833. Screw; 834. Worm gear; 835. Worm. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] Example 1: This application discloses a portable steering device for a tunnel inspection vehicle.

[0029] Reference Figure 1 , Figure 2 The portable steering device for the tunnel inspection vehicle includes a bogie 1, a lifting unit 2, a steering wheel 3, a rotating unit 4, a connecting component 5, and a support mechanism 8.

[0030] Reference Figure 1 The support mechanism 8 is installed on the bogie 1 and is used to provide horizontal support for the bogie 1. The support mechanism 8 includes support bolts 81 and support nuts 82. Multiple support bolts 81 are anchored at the set position of the turning or reversing tunnel inspection vehicle. Multiple support bolts 81 are slidably inserted into the bogie 1. Multiple support nuts 82 are threaded on the support bolts 81. In this embodiment, two support nuts 82 are threaded on the support bolts 81. The two support nuts 82 are located on the upper and lower sides of the bogie 1, respectively.

[0031] The construction workers first anchor multiple support bolts 81 to the ground at the position where the bogie 1 needs to turn or change direction. Then, they tighten one of the support nuts 82 onto the support bolt 81. Next, they move the bogie 1 so that the multiple support bolts 81 pass through the bogie 1. Then, they tighten another support nut 82 onto the support bolt 81. Tightening both support nuts 82 until they are pressed against the upper and lower sides of the bogie 1 allows the bogie 1 to be positioned and installed. When it is necessary to level the bogie 1 later, the support nut 82 on the offset side of the bogie 1 is tightened to adjust the height of the support nut 82, thereby adjusting the height of the offset side of the bogie 1 and conveniently adjusting the steering angle to be level.

[0032] Reference Figure 1The lifting unit 2 is installed on the bogie 1. The lifting unit 2 is used to drive the steering wheel 3 to rise and fall. The lifting unit 2 includes a hydraulic cylinder 21, which is vertically installed on the bogie 1. A guide plate 6 is installed on the piston rod of the hydraulic cylinder 21, and the steering wheel 3 is rotatably mounted on the guide plate 6. The construction personnel can drive the guide plate 6 to drive the steering wheel 3 to rise and fall by controlling the rise and fall of the piston rod of the hydraulic cylinder 21.

[0033] Reference Figure 1 , Figure 2 The guide disc 6 has an annular groove 61 along the rotation path of the axial disc. The bottom of the steering disc 3 is equipped with a guide wheel 7, which is slidably embedded in the annular groove 61. The rotating unit 4 is installed on the guide disc 6 and is used to drive the steering disc 3 to rotate. The rotating unit 4 includes a rotating motor 41, which is installed on the guide disc 6. The output shaft of the rotating motor 41 is coaxially connected to the steering disc 3.

[0034] When the construction workers start the rotating motor 41, the output shaft of the rotating motor 41 can drive the steering wheel 3 to rotate. During the rotation of the steering wheel 3, the guide wheel 7 is moved. The guide wheel 7 can rotate along the annular groove 61. The side wall of the annular groove 61 guides the movement of the guide wheel 7, thereby guiding the rotation of the steering wheel 3 and effectively improving the stability of the steering wheel 3 during rotation.

[0035] Reference Figure 1 , Figure 2 The connecting component 5 is mounted on the steering wheel 3 and is used to connect to the chassis of the tunnel inspection vehicle. The connecting component 5 includes multiple connecting pins 51, which are all mounted on the steering wheel 3 and protrude from the top of the steering wheel 3. The multiple connecting pins 51 are all used to pass through to the chassis of the tunnel inspection vehicle.

[0036] When the steering wheel 3 moves upward toward the tunnel inspection vehicle, it drives multiple connecting pins 51 to move upward, allowing the multiple connecting pins 51 to be inserted into the chassis of the tunnel inspection vehicle, facilitating the connection between the steering wheel 3 and the tunnel inspection vehicle.

[0037] The implementation principle of the portable steering device for a tunnel inspection vehicle according to Embodiment 1 of this application is as follows: Construction personnel first horizontally install the bogie 1 at the designated position where the tunnel inspection vehicle needs to turn or change direction in the direction of travel using the support mechanism 8. First, the piston rod of the hydraulic cylinder 21 is controlled to drive the steering wheel 3 downwards. Once the tunnel inspection vehicle moves above the steering wheel 3, the piston rod of the hydraulic cylinder 21 is then controlled to drive the steering wheel 3 upwards, causing multiple connecting pins 51 to insert into the chassis of the tunnel inspection vehicle. Then, the hydraulic cylinder 21 continues to drive the steering wheel 3 upwards, allowing the steering wheel 3 to lift the tunnel inspection vehicle. The rotating motor 41 is then started, driving the steering wheel 3 to rotate, thus enabling the tunnel inspection vehicle to turn or change direction, improving the efficiency of turning and changing direction, and consequently improving the efficiency of tunnel inspection operations.

[0038] Example 2, the difference between Example 2 and Example 1 is as follows: Reference Figure 3 , Figure 4 The support mechanism 8 includes multiple support feet 83, which are arrayed and installed on the bottom of the bogie 1. The length of the support feet 83 is telescopic. Each support foot 83 includes a support sleeve 831, a support rod 832, a screw 833, a worm gear 834, and a worm 835. The support sleeve 831 is installed on the bottom of the bogie 1. The support sleeve 831 is hollow inside and open at the lower end. The support rod 832 is slidably inserted into the open end of the support sleeve 831. The screw 833 is rotatably installed on the inner bottom wall of the support sleeve 831 and is threadedly connected to the support rod 832. The worm gear 834 is coaxially installed on the screw 833. The worm 835 is rotatably installed on the support sleeve 831 and extends into the interior of the support sleeve 831 and meshes with the worm gear 834.

[0039] The implementation principle of Embodiment 2 of this application is as follows: the construction personnel directly move the bogie 1 to the set position for turning or reversing the tunnel inspection vehicle, and the multiple support feet 83 abut against the ground. The multiple support feet 83 can support the bogie 1. If the bogie 1 is not in a horizontal state, the construction personnel turn the worm 835 on the offset side of the bogie 1. The worm 835 can drive the worm wheel 834 to rotate. The worm wheel 834 drives the screw 833 to rotate. The screw 833 can drive the support rod 832 to move closer to or away from the support sleeve 831, and adjust the length of the support foot 83 on the offset side, so as to conveniently adjust the levelness of the bogie 1, and thus conveniently realize the horizontal installation of the bogie 1.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable steering device for a tunnel inspection vehicle, characterized in that: It includes a bogie (1), a lifting unit (2), a steering wheel (3), a rotating unit (4), and a connecting assembly (5). The lifting unit (2) is mounted on the bogie (1) and is used to drive the steering wheel (3) to lift and lower. The steering wheel (3) is rotatably mounted on the lifting unit (2). The rotating unit (4) is mounted on the lifting unit (2) and is used to drive the steering wheel (3) to rotate. The connecting assembly (5) is mounted on the steering wheel (3) and is used to connect to the chassis of the tunnel inspection vehicle.

2. The portable steering device for a tunnel inspection vehicle according to claim 1, characterized in that: The lifting unit (2) is provided with a guide plate (6), and the guide plate (6) has an annular groove (61) along the rotation path of the steering wheel (3). The steering wheel (3) is provided with a guide wheel (7), and the guide wheel (7) is slidably embedded in the annular groove (61).

3. The portable steering device for a tunnel inspection vehicle according to claim 1, characterized in that: The connecting component (5) includes a plurality of connecting pins (51), all of which are disposed on the steering wheel (3) and are used to pass through to the chassis of the tunnel inspection vehicle.

4. The portable steering device for a tunnel inspection vehicle according to claim 2, characterized in that: The lifting unit (2) includes a hydraulic cylinder (21), which is mounted on the bogie (1). The piston rod of the hydraulic cylinder (21) is connected to the guide plate (6).

5. The portable steering device for a tunnel inspection vehicle according to claim 2, characterized in that: The rotating unit (4) includes a rotating motor (41), which is mounted on the guide plate (6) and is coaxially connected to the steering plate (3).

6. The portable steering device for a tunnel inspection vehicle according to claim 1, characterized in that: The bogie (1) is provided with a support mechanism (8), which is used to provide horizontal support for the bogie (1).

7. The portable steering device for a tunnel inspection vehicle according to claim 6, characterized in that: The support mechanism (8) includes support bolts (81) and support nuts (82). Multiple support bolts (81) are slidably inserted on the bogie (1). The support bolts (81) are anchored to the ground. Multiple support nuts (82) are threaded on the support bolts (81). The multiple support nuts (82) are located on both sides of the bogie (1).

8. The portable steering device for a tunnel inspection vehicle according to claim 6, characterized in that: The support mechanism (8) includes multiple support feet (83), which are arranged in an array on the bogie (1). Each support foot (83) includes a support sleeve (831), a support rod (832), a screw (833), a worm gear (834), and a worm (835). The support sleeve (831) is arranged on the bogie (1). The support rod (832) is slidably inserted into the support sleeve (831). The screw (833) is rotatably arranged on the support sleeve (831) and threadedly connected to the support rod (832). The worm gear (834) is coaxially arranged on the screw (833). The worm (835) is rotatably arranged on the support sleeve (831) and meshes with the worm gear (834).

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