A bridge inspection vehicle

Abstract

The utility model relates to a bridge inspection vehicle, including a special operation vehicle, a rotating assembly, a walking truss, a climbing truss and a lifting assembly. The rotating assembly is installed on the chassis of the special operation vehicle near the end of the cab, and a lifting platform is installed on it. The walking truss is horizontally arranged, one end of which is connected to the lifting platform, and the other end of which has an assembly frame that passes through the upper and lower parts. The climbing truss vertically passes through the assembly frame and is slidably connected to the assembly frame. The lifting assembly is installed at the other end of the walking truss and is connected to the climbing truss to drive the climbing truss to move up and down. The upper part of the walking truss is open, and the lower end of the climbing truss is closed. The side close to the special operation vehicle is open, and a climbing passage that passes through the upper end is formed in the climbing truss. Advantages: simple and reasonable structural design, relatively convenient operation, flexible operation from under the bridge deck to under the bridge, and easy daily maintenance of the whole vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge maintenance, in particular to a bridge inspection vehicle. Background Art

[0002] During bridge construction or daily maintenance, it is often necessary to inspect the side and bottom of the bridge. There are three common methods: 1. For low-height bridges, workers are lifted from underground using a ladder-like working tool to the air to inspect the bridge. This type of working tool is limited by the height of the bridge, and the operation process may often occupy the ground road; 2. Tracks are set at the bottom of the bridge, and an adapted inspection vehicle is suspended for a long time for maintenance. During the maintenance process, tools are first needed to assist workers to enter the suspended inspection vehicle. At the same time, this type of inspection vehicle itself requires regular maintenance, and it is slightly more difficult to maintain when suspended in the air. It generally requires additional maintenance structures such as track lubrication, etc. The overall cost of use is high and the flexibility of use is also poor; 3. Adaptive trusses are used on the bridge deck to extend outward to the outside and bottom of the bridge for inspection. Since most of these trusses are fixed standard structural designs, additional hoists are often required before maintenance to assist the trusses to extend outward to the outside of the bridge, and assembly and construction are more time-consuming and labor-intensive.

[0003] Based on this, it is necessary to develop a bridge inspection vehicle that is more flexible to use to overcome the above-mentioned technical problems. Utility Model Content

[0004] The utility model provides a bridge inspection vehicle, which effectively overcomes the defects of the prior art.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A bridge inspection vehicle comprises a special operation vehicle, a rotating assembly, a walking truss, a climbing truss and a lifting assembly. The rotating assembly is mounted on one end of the chassis of the special operation vehicle near a cab, and a lifting platform is mounted thereon. The walking truss is horizontally arranged, one end of which is connected to the lifting platform, and the other end of which is provided with an assembly frame which passes through the upper and lower parts. The climbing truss vertically passes through the assembly frame and is slidably connected to the assembly frame. The lifting assembly is mounted on the other end of the walking truss and is connected to the climbing truss for driving the climbing truss to move up and down. The upper part of the walking truss is open, the lower end of the climbing truss is closed, and the side close to the special operation vehicle is open. A climbing passage which passes through the upper end of the climbing truss is formed in the climbing truss.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, it also includes an extension truss, one end of which is hinged to the lower end of the climbing truss, and the lower end of the climbing truss is provided with a flipping drive device, which is connected to the extension truss and is used to drive the extension truss to flip downward to a horizontal position and be located on a side of the climbing truss close to the special operation vehicle, or to flip upward and be stored in the climbing truss.

[0009] Furthermore, the above-mentioned flipping driving device includes a winch, two steel ropes and two pulleys. The two pulleys are rotatably installed on the middle parts of both sides inside the above-mentioned climbing truss. The above-mentioned winch is installed on the lower end part of the above-mentioned climbing truss. One ends of the two steel ropes are respectively connected to the two sides of the other end of the above-mentioned extension truss. The other ends of the two steel ropes are respectively passed around the two pulleys, and extend downward to penetrate the lower end of the above-mentioned climbing truss and are connected to the above-mentioned winch.

[0010] Furthermore, the above-mentioned rotating assembly is a slewing bearing.

[0011] Furthermore, the above-mentioned lifting platform is a scissor-type hydraulic lifting platform.

[0012] Furthermore, a vertical sliding sleeve is provided on the inner side of one end of the assembly frame away from the walking truss, and a vertical optical axis is fixed on the side of the climbing truss away from the special operation vehicle, and the optical axis passes through the sliding sleeve.

[0013] Furthermore, the above-mentioned lifting assembly includes two hydraulic cylinders, two chains and two sprockets. The two hydraulic cylinders are respectively vertically installed inside the two sides of the other end of the above-mentioned walking truss, and their telescopic ends are upward and are rotatably connected to the sprockets. The two chains respectively pass around the two sprockets from the top one by one and engage with the above-mentioned sprockets respectively. One end of the above chain extends downward and is connected and fixed to the above-mentioned walking truss, and the other end of the above chain extends downward and is connected and fixed to the side of the above-mentioned climbing truss close to the special operation vehicle.

[0014] Furthermore, first chain protection sleeves are vertically provided on both sides of the climbing truss close to the special operation vehicle, and the other end of the chain passes through the first chain protection sleeve. Second chain protection sleeves are vertically fixed inside both sides of the other end of the walking truss, and one end of the chain passes through the second chain protection sleeve on the corresponding side.

[0015] Furthermore, a ladder is placed in the walking truss for bridging the outside of one side thereof.

[0016] Furthermore, an anti-fall frame having a cross-sectional area larger than the cross-sectional area of ​​the outer contour of the cross-section of the assembly frame is provided at the upper end of the climbing truss.

[0017] The utility model has the following beneficial effects: the structure design is simple and reasonable, the operation is relatively convenient, the flexible operation from under the bridge deck to under the bridge can be realized, and the whole vehicle is easy to maintain on a daily basis. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a bridge inspection vehicle of the present utility model;

[0019] Figure 2 It is a structural schematic diagram of another embodiment of the bridge inspection vehicle of the utility model;

[0020] Figure 3 It is a structural schematic diagram of another embodiment of the bridge inspection vehicle of the present invention when the extended truss is flipped and stored.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Special operation vehicle; 2. Rotating assembly; 3. Walking truss; 4. Climbing truss; 5. Lifting assembly; 6. Lifting platform; 7. Extension truss; 8. Flipping drive device; 31. Assembly frame; 41. Optical axis; 51. Hydraulic cylinder; 52. Chain; 53. Sprocket; 81. Winch; 82. Wire rope; 83. Pulley; 311. Sliding sleeve. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] Example: Figure 1 As shown, the bridge inspection vehicle of this embodiment includes a special operation vehicle 1, a rotating assembly 2, a traveling truss 3, a climbing truss 4 and a lifting assembly 5. The rotating assembly 2 is mounted on the chassis of the special operation vehicle 1 at one end close to the cab, and a lifting platform 6 is mounted thereon. The traveling truss 3 is horizontally arranged, one end of which is connected to the lifting platform 6, and the other end of which is provided with an assembly frame 31 which passes through from top to bottom. The climbing truss 4 vertically passes through the assembly frame 31 and is slidably connected to the assembly frame 31. The lifting assembly 5 is mounted on the other end of the traveling truss 3 and is connected to the climbing truss 4 to drive the climbing truss 4 to move up and down. The upper part of the traveling truss 3 is open, the lower end of the climbing truss 4 is closed, and the side close to the special operation vehicle 1 is open, and a climbing passage which passes through the upper end is formed in the climbing truss 4.

[0025] When the bridge inspection vehicle of this embodiment is not in use, the climbing truss 4 is driven to rise to a high position by the lifting assembly 5, and the traveling truss 3 is rotated to the chassis of the special operation vehicle 1 by the rotating assembly 2, ensuring that the climbing truss 4 and the traveling truss 3 are entirely located on the chassis of the special operation vehicle 1. When operation is required, the special operation vehicle 1 is moved along the edge of the bridge pavement. When it reaches the target position, the lifting platform 6 drives the walking truss 3 and the climbing truss 4 to rise to a certain height, so that the lower end of the climbing truss 4 is higher than the guardrail (mercury guardrail) of the bridge. After that, the rotating assembly 2 drives the walking truss 3 to rotate, so that the climbing truss 4 is located on the outside of the bridge after passing the guardrail. Next, the lifting assembly 5 drives the climbing truss 4 to descend. At the same time, in conjunction with the descent of the lifting platform 6, the height of the lower end of the climbing truss 4 falls to a position suitable for inspection. Next, the operator climbs onto the walking truss 3 via the special operation vehicle 1, moves along the walking truss 3 to its other end, and climbs down along the climbing truss 4 to the lower end, and then the bottom of the side of the bridge can be inspected. After the inspection, the operator returns to the bridge deck along the original route, the climbing truss 4 rises to a high position, and the lifting platform 6 rises so that the lower end of the climbing truss 4 is higher than the guardrail. Next, the walking truss 3 is rotated to the chassis of the special operation vehicle 1. The entire operation process does not require the assistance of other tools (such as a crane, etc.), and the truss deployment and storage work can be completed independently.

[0026] As a preferred embodiment, Figure 2 and 3 As shown, it also includes an extension truss 7, one end of which is hinged to the lower end of the climbing truss 4, and the lower end of the climbing truss 4 is provided with a flipping drive device 8, which is connected to the extension truss 7, and is used to drive the extension truss 7 to flip downward to a horizontal position and be located on a side of the climbing truss 4 close to the special operation vehicle 1, or to flip upward and be stored in the climbing truss 4.

[0027] In the above embodiment, the extension truss 7 is stored in the climbing truss 4 when not in use or in the process of being deployed. After the climbing truss 4 is located outside the bridge and lowered into place, the extension truss 7 is driven by the flipping drive device 8 to flip and open downward, which can achieve the purpose of extending the position to a certain extent, so that the inspection position can be closer to the bottom of the bridge, and the inspection range is larger.

[0028] In this embodiment, the extension truss 7 may also be a multi-section plug-in truss, which can achieve contraction in the length direction, and is beneficial to contraction and extension within a small space.

[0029] As a preferred embodiment, the flipping drive device 8 includes a winch 81, two steel ropes 82 and two pulleys 83. The two pulleys 83 are rotatably installed on the middle of both sides of the inside of the climbing truss 4. The winch 81 is installed on the lower end of the climbing truss 4. One ends of the two steel ropes 82 are respectively connected to the two sides of the other end of the extension truss 7. The other ends of the two steel ropes 82 are respectively passed around the two pulleys 83, and extend downward to penetrate the lower end of the climbing truss 4 and are connected to the winch 81.

[0030] In the above implementation scheme, when the winch 81 is unwound, the extension truss 7 can rotate around one end thereof to a horizontal position under the action of gravity, and the operator can walk along the extension truss 7 to its other end, which is closer to the middle position of the bottom of the bridge; when the winch 81 is reeled in, the other end of the extension truss 7 can be pulled up by the wire rope 82 to flip it up and store it into the climbing truss 4.

[0031] It should be noted that after the extension truss 7 is stored, it can be tilted toward one side of the climbing truss 4, so that it can be flipped to a horizontal position under gravity when the winch 81 is unwound. Of course, the operator can also apply an external force toward the bridge side to the other end of the extension truss 7 in the climbing truss 4 (this external force is only an auxiliary effect, the required force is small, and it can be applied easily). By applying a slight external force manually, the extension truss 7 can be flipped and lowered to a horizontal position as the wire rope 82 is unwound.

[0032] In this embodiment, a vertical climbing ladder is provided on one side of the climbing truss 4 away from the bridge. During operation, the operator fastens a safety belt rope, which is tied to the walking truss 3 above.

[0033] In this embodiment, the power supply of the hoist 81 can be connected to the power supply of the special operation vehicle 1 through an external power line.

[0034] In this embodiment, guard plates or protective nets or sleeves sleeved on the other end of the steel wire rope 82 are respectively provided at positions close to the inner wall on opposite sides of the climbing truss 4 to isolate the steel wire rope 82 .

[0035] In this embodiment, the rotating assembly 2 adopts a slewing bearing of an adapted type in the prior art.

[0036] In this embodiment, the lifting platform 6 is a conventional scissor-type hydraulic lifting platform.

[0037] In this embodiment, a vertical sliding sleeve 311 is provided on the inner side of one end of the assembly frame 31 away from the walking truss 3, and a vertical optical axis 41 is fixed on the side of the climbing truss 4 away from the special operation vehicle 1, and the optical axis 41 passes through the sliding sleeve 311. The cooperation between the sliding sleeve 311 and the optical axis 41 enables the climbing truss 4 to be lifted up and down along a fixed direction, and no significant shaking occurs during the lifting process. Generally, two pairs of optical axes 41 and sliding sleeves 311 are provided respectively, so that the sliding assembly is relatively stable.

[0038] As a preferred embodiment, the lifting assembly 5 includes two hydraulic cylinders 51, two chains 52 and two sprockets 53. The two hydraulic cylinders 51 are respectively vertically installed inside the two sides of the other end of the walking truss 3, with their telescopic ends facing upward and rotatably connected to the sprockets 53. The two chains 52 respectively pass around the two sprockets 53 from the top one by one and engage with the sprockets 53 respectively. One end of the chain 52 extends downward and is connected and fixed to the walking truss 3, and the other end of the chain 52 extends downward and is connected and fixed to the side of the climbing truss 4 close to the special operation vehicle 1.

[0039] In the above embodiment, the two hydraulic cylinders 51 extend synchronously, which can drive the two sprockets 53 to rise. When the two sprockets 53 rise, the points where the chains 52 are connected to them can be driven to rise. Since the total length of the chains 52 is fixed, when the sprockets 53 rise, the other end of the chains 52 will rise with the climbing truss 4. The structural design is reasonable and the operation is relatively stable.

[0040] In this embodiment, the two hydraulic cylinders 51 are connected to the hydraulic system of the special operation vehicle 1, which belongs to conventional hydraulic drive and will not be described in detail here.

[0041] In this embodiment, the climbing truss 4 is vertically provided with first chain protection sleeves on both sides of the side close to the special operation vehicle 1, and the other end of the chain 52 passes through the first chain protection sleeve. The second chain protection sleeves are vertically fixed inside the two sides of the other end of the walking truss 3, and one end of the chain 52 passes through the second chain protection sleeves on the corresponding side. The arrangement of the first chain protection sleeve and the second chain protection sleeve allows the chain 52 to be partially hidden in the sleeve, making the operation safer.

[0042] In this embodiment, a ladder is placed in the walking truss 3 for lapped on one side of the walking truss 3. Before or after the work is completed, the operator can lap (lean) the upper end of the ladder on the upper edge of one side of the walking truss 3, and the lower end of the ladder is on the ground, which is convenient for the operator to climb up or down the walking truss 3 from the ground.

[0043] In this embodiment, an anti-fall frame having a cross-sectional area larger than the cross-sectional area of ​​the outer contour of the cross section of the assembly frame 31 is disposed at the upper end of the climbing truss 4 .

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A bridge inspection vehicle, characterized in that: The invention comprises a special operation vehicle (1), a rotating assembly (2), a walking truss (3), a climbing truss (4) and a lifting assembly (5). The rotating assembly (2) is mounted on the chassis of the special operation vehicle (1) at one end close to the cab, and a lifting platform (6) is mounted on the rotating assembly (2). The walking truss (3) is arranged horizontally, one end of which is connected to the lifting platform (6), and the other end of which is provided with an assembly frame (31) which passes through the upper and lower parts. The climbing truss (4) passes through the assembly frame (31) vertically and is slidably connected to the assembly frame (31). The lifting assembly (5) is mounted on the other end of the walking truss (3) and is connected to the climbing truss (4) for driving the climbing truss (4) to move up and down. The upper part of the walking truss (3) is open, and the lower end of the climbing truss (4) is closed. The side close to the special operation vehicle (1) is open, and a climbing passage which passes through the upper end of the climbing truss (4) is formed inside the climbing truss (4).

2. A bridge inspection vehicle according to claim 1, characterized in that: It also includes an extension truss (7), one end of which is hinged to the lower end of the climbing truss (4), and a flipping drive device (8) is provided at the lower end of the climbing truss (4). The flipping drive device (8) is connected to the extension truss (7) and is used to drive the extension truss (7) to flip downward to a horizontal position and be located on a side of the climbing truss (4) close to the special operation vehicle (1), or to flip upward to be stored in the climbing truss (4).

3. A bridge inspection vehicle according to claim 2, characterized in that: The tilting driving device (8) comprises a winch (81), two steel wire ropes (82) and two pulleys (83), wherein the two pulleys (83) are rotatably mounted on the middle of both sides of the interior of the climbing truss (4), the winch (81) is mounted on the lower end of the climbing truss (4), one end of the two steel wire ropes (82) are respectively connected to both sides of the other end of the extension truss (7), and the other ends of the two steel wire ropes (82) are respectively passed around the two pulleys (83) in a one-to-one correspondence, and extend downward to penetrate the lower end of the climbing truss (4), and are connected to the winch (81).

4. A bridge inspection vehicle according to claim 1, characterized in that: The rotating assembly (2) is a slewing bearing.

5. A bridge inspection vehicle according to claim 1, characterized in that: The lifting platform (6) is a scissor-type hydraulic lifting platform.

6. A bridge inspection vehicle according to claim 1, characterized in that: A vertical sliding sleeve (311) is provided on the inner side of one end of the assembly frame (31) away from the walking truss (3), and a vertical optical axis (41) is fixed on the side of the climbing truss (4) away from the special operation vehicle (1), and the optical axis (41) passes through the sliding sleeve (311).

7. A bridge inspection vehicle according to claim 1, characterized in that: The lifting assembly (5) comprises two hydraulic cylinders (51), two chains (52) and two sprockets (53). The two hydraulic cylinders (51) are respectively vertically mounted inside the two sides of the other end of the walking truss (3), and their telescopic ends are upward and are respectively rotatably connected to the sprockets (53). The two chains (52) respectively pass around the two sprockets (53) from the top one by one and respectively engage with the sprockets (53). One end of the chain (52) extends downward and is connected and fixed to the walking truss (3), and the other end of the chain (52) extends downward and is connected and fixed to the side of the climbing truss (4) close to the special operation vehicle (1).

8. A bridge inspection vehicle according to claim 7, characterized in that: The climbing truss (4) is vertically provided with first chain protection sleeves on both sides of a side close to the special operation vehicle (1), and the other end of the chain (52) passes through the first chain protection sleeve. The second chain protection sleeves are vertically fixed inside the two sides of the other end of the walking truss (3), and one end of the chain (52) passes through the second chain protection sleeve on the corresponding side.

9. A bridge inspection vehicle according to claim 1, characterized in that: A ladder is placed in the walking truss (3) for overlapping the outside of one side thereof.

10. A bridge inspection vehicle according to any one of claims 1 to 9, characterized in that: The upper end of the climbing truss (4) is provided with a fall prevention frame having a cross-sectional area larger than the cross-sectional area of ​​the outer contour of the cross section of the assembly frame (31).

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