Leveling mechanism of lower chord inspection vehicle

Abstract

The utility model relates to a leveling mechanism of a lower chord inspection vehicle, which comprises a walking component, an operating platform and an electric push rod, and the walking component is positioned above the operating platform and is rotatably connected with the operating platform; the two ends of the electric push rod are rotationally connected with the operation platform and the walking assembly through detachable connecting assemblies correspondingly, each connecting assembly comprises a rotating ball and two half shells, one half shell is installed on the walking assembly or the operation platform, and the other half shell is detachably connected with one half shell; the rotating ball is movably installed in the two half shells and fixedly connected with one end of the chain, and the other end of the chain penetrates through the other half shell and then is fixedly connected with one end of the electric push rod. The automatic leveling device has the advantages of being simple in structure, reasonable in design, capable of achieving automatic leveling of the inspection vehicle operation platform, easy to operate, convenient to disassemble and assemble the electric push rod and convenient to maintain follow-up equipment.

Description

Technical Field

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

[0002] As a manned bridge maintenance equipment, the lower chord inspection vehicle mainly runs on the track of the lower chord of the bridge. Since the bridge itself is curved, the track of the inspection vehicle also has varying degrees of slope. At present, the leveling of the platform of the lower chord inspection vehicle is usually carried out by using an electric push rod in conjunction with a level sensor. The two ends of the electric push rod are respectively connected to the travel assembly and the operating platform through a rotating shaft. The electric push rod is inconvenient to disassemble and assemble, and is not convenient for subsequent maintenance, which is time-consuming and laborious. Utility Model Content

[0003] The utility model provides a leveling mechanism for a lower chord inspection vehicle, aiming to solve the problems in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A leveling mechanism for a lower chord inspection vehicle comprises a walking assembly, an operating platform and an electric push rod, wherein the walking assembly is located above the operating platform and is rotatably connected to the operating platform; both ends of the electric push rod are rotatably connected to the operating platform and the walking assembly via detachable connecting assemblies, each of the connecting assemblies comprises a rotating ball and two half shells, one of the half shells is mounted on the walking assembly or the operating platform, and the other half shell is detachably connected to one of the half shells; the rotating ball is movably mounted in the two half shells, and is fixedly connected to one end of a chain, and the other end of the chain is fixedly connected to one end of the electric push rod after passing through the other half shell.

[0006] The beneficial effects of the utility model are as follows: when in use, the traveling assembly moves along the track and always maintains a state parallel to the track; when the track begins to tilt, the electric push rod is extended and retracted so that the traveling assembly drives the operating platform to also tilt to a corresponding angle, which is convenient for adjustment;

[0007] In addition, the two ends of the electric push rod are rotatably connected to the travel assembly and the operating platform through two half shells and a rotating ball. The electric push rod is easy to disassemble and assemble, and is convenient for subsequent maintenance.

[0008] The utility model has the advantages of simple structure and reasonable design, can realize automatic leveling of the operating platform of the inspection vehicle, is easy to operate, and the electric push rod is convenient to disassemble and assemble, which is convenient for subsequent maintenance of the equipment.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the two half shells are respectively in a hemispherical structure and are detachably connected.

[0011] The beneficial effect of adopting the above further solution is that the shapes of the two half shells are reasonably designed, their shapes match the rotating ball, and the assembly is convenient.

[0012] Furthermore, the opposite ends of the two half shells are respectively fixedly connected with connecting rings, and the two connecting rings are detachably connected.

[0013] The beneficial effects of adopting the above further solution are simple structure and reasonable design. The two half shells are detachably connected by two connecting rings, which makes disassembly and assembly convenient, saving time and effort.

[0014] Furthermore, the two connecting rings are threadedly connected.

[0015] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and detachable connection of the two half shells is achieved through the threaded connection of the two connecting rings, which is easy to operate and saves time and effort.

[0016] Furthermore, it also includes a level, which is fixedly installed on the operating platform.

[0017] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and using a level meter to monitor the levelness of the operating platform in real time.

[0018] Furthermore, it also includes a controller, which is fixedly installed on the operating platform; the electric push rod and the level are respectively connected to the controller for communication.

[0019] The beneficial effect of adopting the above further scheme is that when the spirit level on the operating platform senses the change in angle, it sends a signal to the controller, and the controller outputs a signal to the electric push rod. Under the influence of the gravity of the operating platform and the controller signal, the electric push rod stretches or contracts a corresponding distance, so that the operating platform is automatically adjusted to a horizontal position under the drive of gravity. At this time, the spirit level has no signal output, and the controller has no signal to the electric push rod. The electric push rod is in a braking state, so that the operating platform maintains a horizontal state, and leveling is convenient.

[0020] Furthermore, one end of the rotating ball and the electric push rod are respectively fixedly connected with a tie ring, and the two ends of the chain are respectively buckled with the two tie rings.

[0021] The beneficial effects of adopting the above further solution are simple structure and reasonable design. The two ends of the chain are connected to the rotating ball and the electric push rod through two tie rings respectively, and the assembly is convenient.

[0022] Furthermore, the operating platform and the walking assembly are respectively fixedly connected with screw rods, and one of the half shells in the two connecting assemblies is threadedly connected to the two screw rods.

[0023] The beneficial effects of adopting the above further solution are simple structure and reasonable design. The corresponding two half shells are connected to the operating platform and the walking assembly respectively through screws, which is convenient for assembly.

[0024] Furthermore, the two corresponding half shells are respectively provided with thread grooves, and one end of the two screw rods are respectively threadedly connected to the two thread grooves.

[0025] The beneficial effects of adopting the above further scheme are simple structure and reasonable design. The threaded connection between the threaded grooves on the corresponding two half shells and the two screws is used to achieve a detachable connection between the corresponding two half shells and the operating platform and the walking assembly, which is easy to assemble and saves time and effort.

[0026] Furthermore, the two corresponding half shells are respectively provided with penetrating threaded holes, and one end of the two screw rods is respectively threadedly connected to the two threaded holes.

[0027] The beneficial effects of adopting the above further scheme are simple structure and reasonable design. The threaded connection between the threaded holes on the corresponding two half shells and the two screws is used to achieve a detachable connection between the corresponding two half shells and the operating platform and the walking assembly, which is easy to assemble and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 It is a schematic diagram of the structure of the two half shells when assembled in the utility model;

[0030] Figure 3 It is an exploded view of two half shells in the utility model;

[0031] Figure 4 This is a schematic diagram of the structure of another half shell and the rotating ball distribution of the utility model;

[0032] Figure 5 This is a schematic structural diagram of a first embodiment of a half shell of the utility model;

[0033] Figure 6 It is a structural schematic diagram of a second embodiment of a half shell of the present invention.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. Traveling assembly; 2. Operating platform; 3. Electric push rod; 4. Rotating ball; 5. Half shell; 6. Chain; 7. Connecting ring; 8. Level; 9. Controller; 10. Tie ring; 11. Screw; 12. Thread groove; 13. Threaded hole. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0037] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0040] Example 1

[0041] like Figures 1 to 6As shown, this embodiment provides a leveling mechanism for a lower chord inspection vehicle, including a walking assembly 1, an operating platform 2 and an electric push rod 3, wherein the walking assembly is located above the operating platform 2 and is rotatably connected to the operating platform 2; the two ends of the electric push rod 3 are rotatably connected to the operating platform 2 and the walking assembly 1 through detachable connecting assemblies, respectively, and each of the connecting assemblies includes a rotating ball 4 and two half shells 5, one of the half shells 5 is installed on the walking assembly 1 or the operating platform 2, and the other half shell 5 is detachably connected to one of the half shells 5; the rotating ball 4 is movably installed in the two half shells 5, and is fixedly connected to one end of a chain 6, and the other end of the chain 6 is fixedly connected to one end of the electric push rod 3 after passing through the other half shell 5.

[0042] When in use, the travel assembly 1 moves along the track and always maintains a state parallel to the track; when the track begins to tilt, the electric push rod 3 is extended and retracted so that the travel assembly 1 drives the operating platform 2 to also tilt to a corresponding angle, which is convenient for adjustment;

[0043] In addition, both ends of the electric push rod 3 are rotatably connected to the travel assembly 1 and the operating platform 2 through two half shells 5 and a rotating ball 4, respectively. The electric push rod 3 is easy to disassemble and assemble, and is convenient for subsequent maintenance.

[0044] Based on the above solution, a rope may be used to replace the chain 6 .

[0045] In addition, the corresponding half shell 5 is provided with a through hole for the chain 6 to pass through.

[0046] It should be noted that the above-mentioned walking assembly 1, operating platform 2 and electric push rod 3 respectively adopt existing technologies, and their specific structures and principles are not described in detail here.

[0047] This embodiment has a simple structure and reasonable design, can realize automatic leveling of the inspection vehicle operating platform, is easy to operate, and the electric push rod is easy to disassemble and assemble, which is convenient for subsequent equipment maintenance.

[0048] Example 2

[0049] On the basis of Embodiment 1, in this embodiment, the two half shells 5 are respectively hemispherical structures and are detachably connected.

[0050] The shapes of the two half shells 5 are reasonably designed and match the rotating ball 4, so the assembly is convenient.

[0051] Alternatively, the two half shells 5 may also adopt other suitable geometric shapes, such as a rectangular shell, in which case a hemispherical cavity may be provided inside the rectangular shell.

[0052] Example 3

[0053] On the basis of Example 2, in this embodiment, the opposite ends of the two half shells 5 are respectively fixedly connected with connecting rings 7, and the two connecting rings 7 are detachably connected.

[0054] This solution has a simple structure and a reasonable design. The two half shells 5 are detachably connected by two connecting rings 7, which makes disassembly and assembly convenient, saving time and effort.

[0055] Example 4

[0056] On the basis of Embodiment 3, in this embodiment, the two connecting rings 7 are threadedly connected.

[0057] This solution has a simple structure and a reasonable design. The detachable connection of the two half shells is achieved through the threaded connection of the two connecting rings 7. The operation is simple and time-saving.

[0058] Based on the above scheme, the outer diameter of one connecting ring 7 is equal to the inner diameter of the other connecting ring 7, that is, one connecting ring 7 is provided with an external thread, the other connecting ring 7 is provided with an internal thread, and the other connecting ring 7 is sleeved on one of the connecting rings 7 and threadedly connected.

[0059] Alternatively, the two connecting rings 7 may also be connected by screws.

[0060] Example 5

[0061] On the basis of the above embodiments, this embodiment further includes a level 8 , and the level 8 is fixedly installed on the operating platform 2 .

[0062] The solution has a simple structure and a reasonable design, and utilizes the level meter 8 to monitor the levelness of the operating platform 2 in real time.

[0063] It should be noted that the above-mentioned level meter 8 adopts the existing technology, and its specific structure and principle are not described in detail here.

[0064] Alternatively, a level sensor may be used instead of the level meter 8 .

[0065] Example 6

[0066] On the basis of Example 5, this embodiment further includes a controller 9, which is fixedly mounted on the operating platform 2; the electric push rod 3 and the level 8 are respectively connected to the controller 9 for communication.

[0067] When the level 8 on the operating platform 2 senses the change in angle, it sends a signal to the controller 9, and the controller 9 outputs a signal to the electric push rod 3. Under the influence of the gravity of the operating platform 2 and the signal from the controller 9, the electric push rod 3 stretches or contracts a corresponding distance, so that the operating platform 2 is automatically adjusted to a horizontal position under the drive of gravity. At this time, the level 8 has no signal output, and the controller 9 also has no signal to the electric push rod 3. The electric push rod 3 is in a braking state, so that the operating platform 2 maintains a horizontal state, and leveling is convenient.

[0068] It should be noted that the controller 9 adopts the existing technology, and its specific structure and principle are not described in detail here.

[0069] Example 7

[0070] On the basis of the above embodiments, in this embodiment, a tie ring 10 is fixedly connected to one end of the rotating ball 4 and the electric push rod 3 , and two ends of the chain 6 are buckled with the two tie rings 10 .

[0071] The solution has a simple structure and a reasonable design. The two ends of the chain 6 are respectively connected to the rotating ball 4 and the electric push rod 3 through two tie rings 10, and the assembly is convenient.

[0072] Alternatively, two ends of the chain 6 are respectively welded to the rotating ball 4 and one end of the electric push rod 3 .

[0073] Example 8

[0074] On the basis of the above embodiments, in this embodiment, the operating platform 2 and the walking assembly 1 are respectively fixedly connected with screw rods 11 , and one of the half shells 5 in the two connecting assemblies is threadedly connected to the two screw rods 11 .

[0075] This solution has a simple structure and a reasonable design. The corresponding two half shells 5 are respectively connected to the operating platform 2 and the walking assembly 1 through the screw rods 11, and the assembly is convenient.

[0076] Alternatively, the corresponding two half shells 5 are welded together with the operating platform 2 and the traveling assembly 1 respectively.

[0077] Example 9

[0078] On the basis of Example 8, in this embodiment, the corresponding two half shells 5 are respectively provided with thread grooves 12 , and one ends of the two screw rods 11 are respectively threadedly connected to the two thread grooves 12 .

[0079] This solution has a simple structure and reasonable design. It utilizes the threaded connection between the threaded grooves 12 on the two corresponding half shells 5 and the two screws 11 to achieve a detachable connection between the two corresponding half shells 5 and the operating platform 2 and the walking assembly 1, which is easy to assemble and saves time and effort.

[0080] Example 10

[0081] On the basis of Example 8, in this embodiment, the corresponding two half-shells 5 are respectively provided with penetrating threaded holes 13 , and one end of the two screw rods 11 is threadedly connected to the two threaded holes 13 .

[0082] This solution has a simple structure and reasonable design. It utilizes the threaded connection between the threaded holes 13 on the two corresponding half shells 5 and the two screws 11 to achieve a detachable connection between the two corresponding half shells 5 and the operating platform 2 and the walking assembly 1, which is easy to assemble and saves time and effort.

[0083] The above-mentioned Embodiment 9 and Embodiment 10 are parallel solutions.

[0084] The working principle of the utility model is as follows:

[0085] When in use, the travel assembly 1 moves along the track and always maintains a state parallel to the track; when the track begins to tilt, the electric push rod 3 is extended and retracted so that the travel assembly 1 drives the operating platform 2 to also tilt to a corresponding angle, which is convenient for adjustment;

[0086] When the level 8 on the operating platform 2 senses the change in angle, it sends a signal to the controller 9, and the controller 9 outputs a signal to the electric push rod 3. Under the influence of the gravity of the operating platform 2 and the signal from the controller 9, the electric push rod 3 stretches or contracts a corresponding distance, so that the operating platform 2 is automatically adjusted to a horizontal position under the drive of gravity. At this time, the level 8 has no signal output, and the controller 9 also has no signal to the electric push rod 3. The electric push rod 3 is in a braking state, so that the operating platform 2 maintains a horizontal state, and leveling is convenient.

[0087] It should be noted that all electronic components involved in the present invention adopt the existing technology, and the above-mentioned components are electrically connected to the controller, and the control circuit between the controller and each component is the existing technology.

[0088] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0089] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A leveling mechanism for a lower chord inspection vehicle, characterized in that: The invention comprises a walking assembly (1), an operating platform (2) and an electric push rod (3), wherein the walking assembly is located above the operating platform (2) and is rotatably connected to the operating platform (2); the two ends of the electric push rod (3) are rotatably connected to the operating platform (2) and the walking assembly (1) via detachable connecting assemblies, respectively; each of the connecting assemblies comprises a rotating ball (4) and two half shells (5), wherein one of the half shells (5) is mounted on the walking assembly (1) or the operating platform (2), and the other half shell (5) is detachably connected to one of the half shells (5); the rotating ball (4) is movably mounted in the two half shells (5), and is fixedly connected to one end of a chain (6); the other end of the chain (6) passes through the other half shell (5) and is fixedly connected to one end of the electric push rod (3).

2. The leveling mechanism of the lower chord inspection vehicle according to claim 1, characterized in that: The two half shells (5) are respectively in a hemispherical structure and are detachably connected.

3. The leveling mechanism of the lower chord inspection vehicle according to claim 2, characterized in that: The opposite ends of the two half shells (5) are respectively fixedly connected with connecting rings (7), and the two connecting rings (7) are detachably connected.

4. The leveling mechanism of the lower chord inspection vehicle according to claim 3, characterized in that: The two connecting rings (7) are threadedly connected.

5. The leveling mechanism of the lower chord inspection vehicle according to any one of claims 1 to 4, characterized in that: It also comprises a level (8), wherein the level (8) is fixedly mounted on the operating platform (2).

6. The leveling mechanism of the lower chord inspection vehicle according to claim 5, characterized in that: It also includes a controller (9), which is fixedly mounted on the operating platform (2); the electric push rod (3) and the level (8) are respectively connected to the controller (9) for communication.

7. The leveling mechanism of the lower chord inspection vehicle according to any one of claims 1 to 4, characterized in that: The rotating ball (4) and one end of the electric push rod (3) are respectively fixedly connected with a tie ring (10), and the two ends of the chain (6) are respectively buckled with the two tie rings (10).

8. The leveling mechanism of the lower chord inspection vehicle according to any one of claims 1 to 4, characterized in that: The operating platform (2) and the walking assembly (1) are respectively fixedly connected with screw rods (11), and one of the half shells (5) in the two connecting assemblies is threadedly connected to the two screw rods (11).

9. The leveling mechanism of the lower chord inspection vehicle according to claim 8, characterized in that: The two corresponding half shells (5) are respectively provided with a thread groove (12), and one end of the two screw rods (11) is respectively threadedly connected to the two thread grooves (12).

10. The leveling mechanism of the lower chord inspection vehicle according to claim 8, characterized in that: The two corresponding half shells (5) are respectively provided with penetrating threaded holes (13), and one end of the two screw rods (11) is respectively threadedly connected to the two threaded holes (13).

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