A small-span steel-concrete composite beam trackless simple inspection vehicle
By designing a trackless, simple inspection vehicle on a small-span steel-concrete composite beam, utilizing the existing flat structure of the bridge as a track, and employing a drive mechanism and guiding components, bridge inspection was achieved with high efficiency, low cost, and no traffic interference, solving the problems of traditional inspection methods.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING HONGYAN CONSTR MASCH MFG CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-12
AI Technical Summary
Existing bridge maintenance equipment presents problems such as traffic disruption, high construction difficulty, high cost, and significant impact on bridge structure when used on small-span steel-concrete composite beams.
Design a trackless, simple inspection vehicle that uses the existing flat structure of the bridge as its running track and employs a drive mechanism and guiding components, including a DC motor and guide wheels, to enable the truss to move under the bridge for comprehensive inspection.
It achieves efficient and low-cost bridge inspection, avoids traffic disruption, reduces construction difficulty and cost, and does not affect the bridge structure.
Smart Images
Figure CN224351078U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of bridge maintenance equipment, specifically relating to a trackless simple inspection vehicle for small-span steel-concrete composite beams. Background Technology
[0002] With the continuous development of urban infrastructure, bridges play a vital role in transportation. However, during long-term use, bridges are inevitably subject to structural damage and performance degradation due to various factors such as the natural environment and vehicle loads. Therefore, regular, comprehensive, and meticulous inspections and maintenance of bridges are of paramount importance for ensuring their safe operation and extending their service life.
[0003] Currently, bridge maintenance work faces numerous difficulties and challenges. Taking some old bridges with small-span steel-concrete composite beams as an example, traditional maintenance methods have many inconveniences. For instance, when the distance between bridge piers is large, such as a span of 60 meters, existing maintenance methods are often difficult to carry out in an efficient and convenient manner.
[0004] A common method of bridge maintenance relies primarily on vehicle-mounted inspection equipment. This equipment involves a vehicle traveling on the bridge deck, with the vehicle's truss lowered to the bottom of the bridge for inspection. However, this method has significant drawbacks. Because the vehicle needs to travel on the bridge surface, it can significantly disrupt normal traffic, especially on bridges with high traffic volume, potentially causing traffic congestion and inconvenience to people's travel.
[0005] In addition, to address the aforementioned issues, some bridges have attempted to use tracks added to both sides of the bridge bottom to guide the inspection vehicle's drive mechanism. While this method can improve the operational stability and positioning accuracy of the inspection vehicle to some extent, it is difficult to construct and involves a huge amount of work. Furthermore, some bridges have installed maintenance access channels at the bottom of steel-concrete composite beams. For a 13-meter-wide section of the bridge, 2-3 long maintenance access channels need to be constructed. This not only requires a significant investment of manpower, resources, and time for track laying and installation but may also impact the original bridge structure, increasing construction risks and costs. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model provides a trackless, simple inspection vehicle for small-span steel-concrete composite beams, thus resolving the issue of traffic disruption caused by existing inspection vehicles when inspecting old bridges with small-span steel-concrete composite beams.
[0007] The technical solution adopted by this utility model is as follows: a trackless simple inspection vehicle for small-span steel-concrete composite beams, including a drive mechanism and a truss, wherein the truss is horizontally arranged and an array of drive mechanisms is provided on the top of the truss;
[0008] The drive mechanism includes a mounting frame, a walking assembly, and a guide assembly;
[0009] The mounting frame is mounted on the truss, and the traveling assembly is mounted on the mounting frame. The traveling assembly can drive the truss to move.
[0010] The guide component is mounted on the mounting frame and is used to guide the walking component.
[0011] Furthermore, it also includes a gantry frame, which has a "U" shaped frame structure. Two gantry frames are arranged at intervals along the length of the truss. Both gantry frames are fitted onto the truss. Each gantry frame has two sets of drive mechanisms at its top along the width of the truss.
[0012] Furthermore, the walking assembly includes a DC motor and drive wheels;
[0013] The bottom of the mounting bracket is fixedly connected to the top of the gantry frame;
[0014] The DC motor is fixedly mounted on the outer wall of the mounting frame, and the drive end of the DC motor passes through the mounting frame inward and is connected to the drive wheel for transmission.
[0015] Furthermore, the guiding assembly includes a support frame and guide wheels;
[0016] The support frame is fixedly mounted on the mounting frame, and the guide wheel is rotatably connected to the support frame. The guide end of the guide wheel is used to guide the walking component.
[0017] Furthermore, it also includes an upper and lower passage frame, which is vertically arranged at one end of the truss and connected to the truss.
[0018] Furthermore, it also includes an electrical control cabinet, which is installed inside the truss, and the traveling assembly is electrically connected to the electrical control cabinet.
[0019] Furthermore, it also includes a storage battery, which is electrically connected to both the electrical control cabinet and the walking assembly, and is used to supply power to the electrical control cabinet and the walking assembly.
[0020] The beneficial effects of this utility model are:
[0021] This invention provides a bridge inspection vehicle with a simple structure, high efficiency in maintenance, and no impact on traffic. The inspection vehicle mainly consists of a drive mechanism and a truss. The truss is arranged horizontally along the width of the bridge, and two sets of drive mechanisms are set on the top, located on the flat structures on both sides of the bridge. The existing flat structures of the bridge are used as the running track, eliminating the need for additional track laying, thus reducing costs. The drive mechanism includes a walking component and a guiding component. The walking component provides power as it moves on the flat surface, and the guiding end of the guiding component abuts against the outer end wall of the flat surface to ensure stable operation. The inspection vehicle can move along the length of the bridge, allowing maintenance personnel or equipment under the truss to conduct a comprehensive inspection of the bottom of the bridge. Since the inspection vehicle operates under the bridge, it does not occupy the bridge surface and will not interfere with normal traffic order, ensuring smooth traffic flow. Moreover, this solution is simple and easy to use. Attached Figure Description
[0022] Figure 1 This is a front view of Embodiment 1 of the present utility model;
[0023] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;
[0024] Figure 3 This is a partial structural diagram of the truss and gantry in Embodiment 1 of this utility model;
[0025] Figure 4 This is a partial structural diagram of the truss and gantry in Embodiment 2 of this utility model;
[0026] Figure 5 This is a schematic diagram of the gantry frame in Embodiment 2 of this utility model;
[0027] The attached diagram is labeled as follows:
[0028] Drive mechanism 1, mounting bracket 11, DC motor 12, drive wheel 13, support frame 14, guide wheel 15, truss 2, first through hole 21, gantry frame 3, second through hole 31, limit plate 32, upper and lower passage frame 4, electrical control cabinet 5, storage battery 6, bolt 7, nut 8, bridge 9, flat plate structure 91. Detailed Implementation
[0029] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0030] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Example 1:
[0033] like Figures 1-3 As shown, a trackless simple inspection vehicle for small-span steel-concrete composite beams includes a drive mechanism 1 and a truss 2. The truss 2 is horizontally arranged below the bridge 9 along the width direction of the bridge 9. Specifically, the truss 2 covers the entire cross-section along the width direction of the bridge 9. An array of drive mechanisms 1 is provided on the top of the truss 2. Specifically, in this embodiment, four sets of drive mechanisms 1 are provided, with two sets of drive mechanisms 1 provided on each of the left and right sides of the bridge 9. A bottom plate is laid on the inner bottom wall of the truss 2 for maintenance by personnel (not shown in the figure).
[0034] The bridge 9 has a flat plate structure 91 on both sides along the width direction, and the two sets of drive mechanisms 1 can be installed on the flat plate structure 91 on both sides of the bridge 9 respectively.
[0035] The drive mechanism 1 includes a mounting frame 11, a walking assembly, and a guide assembly;
[0036] The mounting frame 11 is mounted on the truss 2, and the traveling assembly is mounted on the mounting frame 11. The traveling assembly can drive the truss 2 to travel along the length of the bridge 9 on the flat plate structure 91 of the bridge 9.
[0037] The guide component is mounted on the mounting frame 11, and the guide end of the guide component abuts against the outer end of the flat plate structure 91 of the bridge 9, for guiding the walking component.
[0038] The bridge inspection vehicle in this embodiment mainly consists of a drive mechanism 1 and a truss 2. The truss 2 is arranged horizontally along the width of the bridge 9, and two sets of drive mechanisms 1 are installed on the top, located on the flat plate structures 91 (such as the flat plate structure 91 of the I-shaped longitudinal beam of the steel-concrete composite beam) on both sides of the bridge 9. The existing flat plate structures 91 of the bridge 9 are used as the running track, eliminating the need for additional track laying and reducing construction costs. The drive mechanism 1 includes a walking component and a guiding component. The walking component provides power for movement on the flat plate, and the guiding end of the guiding component abuts against the outer end wall of the flat plate to ensure stable operation. The inspection vehicle can move along the length of the bridge 9, allowing maintenance personnel or equipment under the truss 2 to conduct a comprehensive inspection of the bottom of the bridge 9. The inspection vehicle runs on the side and under the bridge 9 without occupying the bridge deck lanes, avoiding the traffic interference caused by traditional vehicle-mounted maintenance.
[0039] Specifically, a single inspection vehicle covers half of the bridge deck, and two inspection vehicles are set up for the entire 60-meter section of the steel-concrete composite beam. The 60-meter section of the steel-concrete composite beam is operated by two vehicles in parallel to improve maintenance efficiency.
[0040] As a preferred embodiment, the system also includes a gantry frame 3, which has a "U" shaped frame structure. Two gantry frames 3 are arranged at intervals along the length of the truss 2. Both gantry frames 3 are fitted onto the truss 2. Each gantry frame 3 has two sets of drive mechanisms 1 arranged at its top along the width of the truss 2.
[0041] In this embodiment, the gantry 3 is a U-shaped frame structure with an open top. The three inner sidewalls of the gantry 3 are fixedly connected to the bottom and front and rear sidewalls of the truss 2 by welding. When installed on the bridge 9, the two gantry 3 are located on the left and right sides of the bridge 9 respectively.
[0042] As a preferred embodiment, the walking assembly includes a DC motor 12 and a drive wheel 13; the bottom of the mounting frame 11 is fixedly connected to the top of the gantry frame 3; the DC motor 12 is fixedly mounted on the outer wall of the mounting frame 11, the drive end of the DC motor 12 passes through the mounting frame 11 inward and is connected to the drive wheel 13 in a transmission manner, and the lower end of the drive wheel 13 abuts against the upper surface of the flat plate structure 91 of the bridge 9.
[0043] In this embodiment, the DC motor 12 is fixed on the outside of the mounting bracket 11 to reduce the space occupied inside the truss 2. The drive wheel 13 is connected to the DC motor 12 and rolls on the flat plate of the bridge 9 to provide forward power. Specifically, the drive wheel 13 is made of rubber-coated material to increase friction and prevent slippage.
[0044] As a preferred embodiment, the guiding assembly includes a support frame 14 and a guide wheel 15; the support frame 14 is fixedly mounted on the mounting frame 11, the guide wheel 15 is rotatably connected to the support frame 14, and the guide end of the guide wheel 15 abuts against the outer end wall of the flat plate structure 91 of the bridge 9, for guiding the walking assembly.
[0045] In this embodiment, the guide wheel 15 is fixed to the mounting frame 11 by the support frame 14, and its circumferential surface abuts against the outer end wall of the flat plate to limit the lateral deviation of the inspection vehicle, prevent the inspection vehicle from running off course, and ensure that it travels in a straight line.
[0046] As a preferred embodiment, it also includes an upper and lower channel frame 4, which is vertically arranged at one end of the truss 2 and connected to the truss 2.
[0047] In this embodiment, the vertical passage is located on the outside of bridge 9. The vertical passage frame is connected to truss 2, facilitating the passage of maintenance personnel. Specifically, both truss 2 and the upper and lower passage frames 4 are made of aluminum alloy, while the drive mechanism 1 is made of steel, balancing strength and weight optimization.
[0048] As a preferred embodiment, the system also includes an electrical control cabinet 5, which is disposed within the truss 2, and the traveling assembly is electrically connected to the electrical control cabinet 5.
[0049] In this embodiment, the electrical control cabinet 5 integrates a control circuit and is electrically connected to the walking component to achieve remote or local control.
[0050] As a preferred embodiment, a storage battery 6 is also included. The storage battery 6 is electrically connected to both the electrical control cabinet 5 and the walking assembly, and is used to supply power to the electrical control cabinet 5 and the walking assembly. Specifically, the storage battery 6 is electrically connected to both the electrical control cabinet 5 and the DC motor 12, and is used to supply power to both the electrical control cabinet 5 and the DC motor 12. The storage battery 6 uses a portable storage battery 6 as its power source, and supplies power to the electrical control cabinet 5 and the drive motor. Multiple inspection vehicles can share a single power supply.
[0051] Example 2:
[0052] Example 2 is basically as shown in the attached document. Figures 4 to 5 As shown:
[0053] The remaining features of Embodiment 2 are the same as those of Embodiment 1. The difference is that in Embodiment 2, the gantry frame 3 is slidably sleeved on the truss 2 along the length direction of the truss 2. The frame of the truss 2 has several arrayed first through holes 21 along the length direction of the truss 2. The gantry frame 3 has several arrayed second through holes 31 corresponding to the first through holes 21.
[0054] It also includes several bolts 7 and nuts 8. The bolts 7 pass through the second through hole 31 and the first through hole 21, and are threaded together with the nuts 8. The bolts 7 and nuts 8 limit the position of the gantry 3 in the length direction of the truss 2, so that the inspection vehicle can adapt to bridges 9 of different widths.
[0055] Furthermore, horizontally arranged limiting plates 32 are fixedly connected to the front and rear inner side walls of the gantry frame 3. The bottom of the limiting plate 32 abuts against the top of the truss 2, and the gantry frame 3 is slidably sleeved on the truss 2 through the limiting plate 32.
[0056] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
Claims
1. A trackless, simple inspection vehicle for small-span steel-concrete composite beams, characterized in that: include A drive mechanism (1) and a truss (2), the truss (2) being horizontally arranged, and an array of drive mechanisms (1) being arranged on the top of the truss (2); The drive mechanism (1) includes a mounting frame (11), a walking assembly, and a guide assembly; The mounting frame (11) is mounted on the truss (2), and the traveling assembly is mounted on the mounting frame (11). The traveling assembly is capable of driving the truss (2) to move. The guide component is mounted on the mounting frame (11) and is used to guide the walking component.
2. The trackless simple inspection vehicle for small-span steel-concrete composite beams according to claim 1, characterized in that: It also includes a gantry (3), which has a "U" shaped frame structure. Two gantry (3) are arranged at intervals along the length of the truss (2). Both gantry (3) are fitted onto the truss (2). Each gantry (3) has two sets of drive mechanisms (1) arranged at its top along the width of the truss (2).
3. The trackless simple inspection vehicle for small-span steel-concrete composite beams according to claim 2, characterized in that: The walking assembly includes a DC motor (12) and drive wheels (13); The bottom of the mounting bracket (11) is fixedly connected to the top of the gantry frame (3); The DC motor (12) is fixedly installed on the outer side wall of the mounting frame (11), and the drive end of the DC motor (12) passes through the mounting frame (11) inward and is connected to the drive wheel (13) for transmission.
4. The trackless simple inspection vehicle for small-span steel-concrete composite beams according to claim 1, characterized in that: The guide assembly includes a support frame (14) and guide wheels (15); The support frame (14) is fixedly mounted on the mounting frame (11), and the guide wheel (15) is rotatably connected to the support frame (14). The guide end of the guide wheel (15) is used to guide the walking component.
5. The trackless simple inspection vehicle for small-span steel-concrete composite beams according to claim 1, characterized in that: It also includes an upper and lower channel frame (4), which is vertically arranged at one end of the truss (2) and connected to the truss (2).
6. The trackless simple inspection vehicle for small-span steel-concrete composite beams according to claim 1, characterized in that: It also includes an electrical control cabinet (5), which is installed inside the truss (2), and the walking assembly is electrically connected to the electrical control cabinet (5).
7. A trackless, simple inspection vehicle for small-span steel-concrete composite beams according to claim 6, characterized in that: It also includes a storage battery (6), which is electrically connected to the electrical control cabinet (5) and the walking assembly, and is used to supply power to the electrical control cabinet (5) and the walking assembly.