A bridge inspection vehicle

Abstract

The present invention discloses a bridge inspection vehicle, which comprises a vehicle body and a turntable mechanism arranged on the vehicle body; the turntable mechanism includes a base, a lifting assembly, a cross beam, a working arm and a truss assembly; wherein, the lifting assembly includes a fixed sleeve arranged on the base, a lifting sleeve with one end fixedly connected to the cross beam and the other end slidably connected in the fixed sleeve, and a telescopic cylinder vertically arranged in the fixed sleeve for the up and down displacement of the lifting sleeve. By means of arranging a rotatable base on the vehicle body of the inspection vehicle and arranging a lifting assembly on the base; the mechanism has good stability, ensures the safety and service life of use, can be flexibly changed according to actual use, has a larger working range, and improves the overall flexibility and adaptability.

Description

Technical Field

[0001] The present invention relates to the field of engineering inspection vehicles, and in particular to a bridge inspection vehicle. Background Art

[0002] Under some working conditions in bridge maintenance, the operating space for personnel is limited and it is not convenient to work. It is necessary to inspect or repair places such as the bottom of the bridge. However, the width of the sidewalks in current bridge construction is constantly increasing, the sound insulation screens are constantly getting higher, and anti-throwing nets are also installed between the motor vehicle lanes and non-motor vehicle lanes. The above situations bring inconvenience to maintenance.

[0003] In the prior art, there are also some structures that can adapt to the above-mentioned working conditions, but their structural stability is poor and their service life is short.

[0004] For example, the "multi-degree-of-freedom turntable mechanism of a bridge inspection vehicle" disclosed in the Chinese patent document has a publication number of CN104074136A. In this patent, a multi-degree-of-freedom turntable mechanism of a bridge inspection vehicle is disclosed. When the bridge inspection vehicle needs to cross a relatively high guardrail for operation, the "lifting function" can be adjusted. Through the lifting hydraulic cylinder, the connecting body assembly and the main arm assembly are vertically lifted together along the lifting track to reach a more ideal height for crossing the guardrail; when the bridge inspection vehicle needs to cross a relatively wide sidewalk for operation, the "telescopic function" can be adjusted. The telescopic hydraulic cylinder in the main arm assembly drives the telescopic arm to extend forward. In this patent, the lifting hydraulic cylinder is arranged on one side of the base body and the connecting body. During the lifting process, the force is uneven, and the friction force of the guide rail rod increases when it moves up and down on the base body, seriously affecting the service life; and in this patent, the luffing hydraulic cylinder is inclined and hinged at the bottom. During the luffing process, the force state of the fulcrum is poor and there are potential safety hazards. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a method of arranging a rotatable base on the vehicle body of the inspection vehicle and arranging a lifting assembly on the base; so that the mechanism has good stability, ensuring the safety and service life of use, and can be flexibly changed according to actual use, with a larger working range, improving the overall flexibility and adaptability.

[0006] In order to solve the above technical problems, the present invention is realized through the following technical solutions:

[0007] A bridge inspection vehicle includes a vehicle body and a turntable mechanism disposed on the vehicle body; the turntable mechanism includes a base, the base is connected to the vehicle body through a rotating structure; a lifting assembly, the lifting assembly is disposed on the base; a cross beam, one end of the cross beam is disposed at the top of the lifting assembly; a working arm, the working arm is connected to the end of the cross beam away from the lifting assembly through a luffing structure; a truss assembly, the truss assembly is disposed at the free end of the working arm; wherein, the lifting assembly includes a fixed sleeve disposed on the base, a lifting sleeve with one end fixedly connected to the cross beam and the other end slidably connected in the fixed sleeve, and a telescopic cylinder vertically disposed in the fixed sleeve for the up and down displacement of the lifting sleeve. The above-mentioned base can rotate on the above-mentioned vehicle body, and components such as the lifting assembly disposed on the above-mentioned base can rotate, which is convenient for multi-angle use and has high flexibility; the above-mentioned lifting assembly includes a fixed sleeve, which is fixedly disposed on the above-mentioned base. Through the setting of the lifting sleeve slidably connected in the above-mentioned fixed sleeve, the cross beam at the top of the lifting sleeve can move up and down, and this displacement is realized by driving the lifting sleeve by the telescopic cylinder disposed in the above-mentioned fixed sleeve. Here, the telescopic cylinder is vertically disposed, and the above-mentioned lifting assembly, cross beam and working arm are in the same plane. The telescopic cylinder acts at the middle position, with stable force, more reasonable central force, and is vertically disposed, so the telescopic cylinder is more stable, ensuring the safety of lifting; at the same time, the telescopic cylinder here is located inside the above-mentioned fixed sleeve, avoiding external interference during use and ensuring its safe use; furthermore, due to the setting of the above-mentioned fixed sleeve, when the telescopic cylinder for the lifting and lowering of the lifting sleeve fails and the lifting sleeve slides down, the cross beam can be supported by the above-mentioned fixed sleeve, and the sliding amplitude of the lifting sleeve is small, ensuring the safety of personnel in special cases; the staff can operate through the space provided by the truss assembly disposed at the free end of the above-mentioned working arm, and can carry out construction safely and conveniently.

[0008] Furthermore, the luffing structure includes a telescopic cylinder vertically disposed in the lifting sleeve; one end of the telescopic cylinder in the lifting sleeve is fixed at the bottom of the lifting sleeve, and the other end extends outside the lifting sleeve and is connected to the working arm. The telescopic cylinder in the above-mentioned lifting sleeve is also vertically disposed, and the force at the bottom acts on the bottom of the entire lifting sleeve, with reasonable force, and can ensure its safe use during the luffing process, and will not cause problems such as deformation due to uneven force, etc., thus affecting the use; at the same time, this telescopic cylinder is also disposed inside, ensuring its own safety while also ensuring the safety of the operator.

[0009] Furthermore, the inspection vehicle further includes a support wheel disposed on the side of the vehicle body through a horizontal telescopic cylinder and a vertically disposed telescopic cylinder. The support wheel is disposed below the working arm during work, playing a role in supporting and stabilizing the vehicle body, with simple structure and reliable use; through the setting of two telescopic cylinders in the horizontal and vertical directions, the position can be freely adjusted to meet the use under various working conditions.

[0010] Furthermore, there are two sets of the supporting wheels arranged along the vehicle body, providing more stable support.

[0011] Furthermore, the truss assembly includes a vertical frame suspended at the free end of the working arm and a workbench horizontally arranged at the bottom of the vertical frame. The above-mentioned vertical frame can ensure that the position of the above-mentioned workbench reaches sufficiently below the bridge, with a simple structure and convenient use.

[0012] Furthermore, the telescopic cylinder is a pneumatic cylinder, an electric cylinder or a hydraulic cylinder, which is flexible and versatile and can be selected according to different usage scenarios.

[0013] Compared with the prior art, the advantages of the present invention are as follows: good mechanism stability, ensuring the safety and service life during use, being able to flexibly transform according to actual use, having a larger working range, and improving the overall flexibility and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the present invention.

[0015] Figure 2 It is Figure 1 an enlarged view of part A in

[0016] Figure 3 It is a schematic diagram of the state after the rotation assembly of an embodiment of the present invention rotates.

[0017] Figure 4 It is a usage state diagram of the lifting assembly of an embodiment of the present invention.

[0018] Figure 5 It is a usage state diagram of the luffing structure of an embodiment of the present invention.

[0019] Figure 6 It is a telescoping schematic diagram of the auxiliary boom of an embodiment of the present invention.

[0020] Figure 7 It is a schematic diagram of the vehicle storage state of the supporting wheels of the present invention.

[0021] Figure 8 It is a driving schematic diagram of the supporting wheels of the present invention.

[0022] Figure 9 It is a usage state schematic diagram of the supporting wheels of the present invention.

[0023] Figure 10 It is a usage state diagram of an embodiment of the present invention.

[0024] In the figure:

[0025] 1. Vehicle body; 2. Base; 3. Rotating structure; 4. Lifting assembly; 5. Cross beam; 6. Acting arm; 7. Luffing structure; 8. Fixed sleeve; 9. Lifting sleeve; 10. Telescopic cylinder; 11. Main arm; 12. Sub-arm; 13. Bridge; 14. Anti-throwing net; 15. Sound insulation screen; 16. Truss assembly; 17. Support wheel; 18. Vertical frame; 19. Workbench. Detailed implementation manners

[0026] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 thus should not be construed as a limitation to the present invention.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0029] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See Figures 1 - 10The present invention is an embodiment of a bridge inspection vehicle. In this embodiment, the inspection vehicle includes a vehicle body 1 and a turntable mechanism arranged on the vehicle body 1; the turntable mechanism includes a base 2, the base 2 rotates under the drive of a rotating structure 3, a lifting assembly 4 is arranged on the base 2, a cross beam 5 is arranged on the top of the lifting assembly 4, and an action arm 6 is transferred to the free end of the cross beam 5. The action arm 6 can perform a variable amplitude operation under the action of a variable amplitude structure 7. In this embodiment, the action arm 6 includes a main arm 11 transferred on the cross beam 5 and a main arm 11 arranged on the main arm The telescopic cylinder 10 in 11 is slidably connected to the auxiliary arm 12 in the above-mentioned main arm 11; a truss assembly 16 is provided at the free end of the above-mentioned auxiliary arm 12; in this embodiment, the above-mentioned lifting component 4 includes a fixed sleeve 8 arranged on the above-mentioned base 2, and a lifting sleeve 9 is slidably connected inside the fixed sleeve 8, and the top of the lifting sleeve 9 is connected to the above-mentioned beam 5, and a telescopic rod for the displacement of the above-mentioned lifting sleeve 9 is provided inside the above-mentioned fixed sleeve 8; in this embodiment, all the telescopic cylinders 10 involved are hydraulic cylinders, and in other embodiments, they can also be pneumatic cylinders or electric cylinders, which are not limited to this and will not be repeated here. The base 2 can be rotated on the vehicle body 1, and the lifting assembly 4 and other components arranged on the base 2 can be rotated, which is convenient for multi-angle use and has high flexibility; the lifting assembly 4 includes a fixed sleeve 8, which is fixedly arranged on the base 2. By setting a lifting sleeve 9 that is slidably connected in the fixed sleeve 8, the crossbeam 5 on the top of the lifting sleeve 9 can be displaced up and down, and the displacement is achieved by driving the lifting sleeve 9 by a telescopic cylinder 10 arranged in the fixed sleeve 8. The telescopic cylinder 10 here is vertically arranged, and the lifting assembly 4, the crossbeam 5 and the action arm 6 are displaced on the same plane, and the telescopic cylinder 10 acts in the middle position. The force is stable, the center force is more reasonable, and it is vertically arranged, so the telescopic cylinder 10 is more stable, ensuring the safety of lifting; at the same time, the telescopic cylinder 10 here is located inside the above-mentioned fixed sleeve 8, and during use, it avoids external interference to ensure its safe use; in addition, with the arrangement of the above-mentioned fixed sleeve 8, when the telescopic cylinder 10 used for lifting the lifting sleeve 9 fails and the lifting sleeve 9 slides down, the above-mentioned crossbeam 5 can be supported by the above-mentioned fixed sleeve 8, and the lifting sleeve 9 slides down to a small extent, ensuring the safety of personnel in special circumstances; the staff can operate through the space provided by the truss assembly 16 arranged at the free end of the above-mentioned action arm 6, and can carry out construction safely and conveniently.During use, driven by the above-mentioned rotating structure 3, the working arm 6 is converted from the direction facing the front of the vehicle to the direction of the side of the vehicle, which is convenient for use. After rotating to the appropriate position, the above-mentioned lifting assembly 4 starts to work, lifting the above-mentioned cross beam 5 and the working arm 6 upward. After lifting to the required position, the working arm 6 is acted on by the luffing structure 7 to lift the above-mentioned working arm 6. Through the above-mentioned adjustment, it is ensured that the free end of the working arm 6 is higher than the sound insulation screen 15, and the whole working arm 6 will not touch the anti-throwing net 14. Then, the above-mentioned truss assembly 16 is placed at the required position of the bridge 13 and starts to work. Here, the above-mentioned truss assembly 16 includes a vertical frame 18 provided at the free end of the above-mentioned auxiliary arm 12 and a workbench 19 horizontally arranged on the vertical frame 18, which is convenient for personnel to operate.

[0031] See Figures 1 - 10This is an embodiment of a bridge inspection vehicle of the present invention. In this embodiment, the basic part is consistent with the above-mentioned embodiment and will not be repeated here. In this embodiment, the above-mentioned variable length structure 7 includes a telescopic cylinder 10 vertically arranged in the above-mentioned lifting sleeve 9; one end of the above-mentioned telescopic cylinder 10 in the above-mentioned lifting sleeve 9 is fixed to the bottom of the above-mentioned lifting sleeve 9, and the other end extends to the outside of the above-mentioned lifting sleeve 9 and is transferred to the above-mentioned action arm 6; the telescopic cylinder 10 in the above-mentioned lifting sleeve 9 is also vertically arranged, and the bottom force acts on the bottom of the entire lifting sleeve 9. The force is reasonable, and its safe use can be guaranteed during the variable length process, and deformation and other problems will not occur due to factors such as uneven force, thereby affecting the use; at the same time, the telescopic cylinder 10 is also arranged inside to ensure its own safety. At the same time, it can also ensure the safety of the operator; in this embodiment, the bottom of the above-mentioned fixed sleeve 8 extends to the bottom of the above-mentioned base 2; the top of the above-mentioned telescopic cylinder 10 in the above-mentioned fixed sleeve 8 is connected to the middle part of the above-mentioned lifting sleeve 9, and the bottom is arranged at the bottom of the above-mentioned fixed sleeve 8; the setting part of the above-mentioned fixed sleeve 8 is located at the bottom of the above-mentioned base 2, and the part is located at the top of the above-mentioned base 2. This setting can ensure the strength of the fixed sleeve 8, and reduce the center of gravity of the part to ensure the overall stability; the top of the above-mentioned telescopic cylinder 10 acting on the above-mentioned lifting sleeve 9 is arranged in the middle part of the above-mentioned lifting sleeve 9, so that the lifting sleeve 9 can be lifted during the ascent. The force is concentrated in the middle part, which can ensure the stability of the lifting sleeve 9. The lifting sleeve 9 is arranged in the middle part, which not only has the lifting effect, but also has the connection and stretching effect. Even if it reaches the highest point, it can still effectively ensure the stability of the lifting sleeve 9. The structure is simple and easy to use. Under the setting of the fixed sleeve 8, the rotating structure 3 for rotating the base 2 includes a telescopic cylinder 10 with one end connected to the vehicle body 1 and the other end eccentrically connected to the side of the base 2. The axis of the telescopic cylinder 10 does not pass through the center of the base 2. During the extension and retraction process of the telescopic cylinder 10, the base 2 can be pushed to rotate. The structure is simple and easy to control. Stable; in other embodiments, other forms of rotation settings may be used, for example, the rotation of the above-mentioned base 2 is driven by a driving motor and gears, but it is not limited to this and will not be repeated here; at the same time, in this embodiment, the inspection vehicle also includes two sets of support wheels 17 arranged on the side of the above-mentioned vehicle body 1 through a horizontal telescopic cylinder 10 and a vertically arranged telescopic cylinder 10. The support wheel 17 is arranged below the working arm 6 during operation, and plays a supporting and stabilizing role for the vehicle body 1. The structure is simple and the use is reliable; the position can be freely adjusted by setting the two horizontal and vertical telescopic cylinders 10 to meet the use under various working conditions.

[0032] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A bridge inspection vehicle, comprising a vehicle body and a turntable mechanism arranged on the vehicle body; characterized in that: The turntable mechanism includes a base, which is connected to the vehicle body through a rotating structure; a lifting assembly, which is arranged on the base; a cross beam, one end of which is arranged at the top of the lifting assembly; a working arm, which is connected to the cross beam away from the lifting assembly through a luffing structure; a truss assembly, which is arranged at the free end of the working arm; wherein, the lifting assembly includes a fixed sleeve arranged on the base, a lifting sleeve with one end fixedly connected to the cross beam and the other end slidingly connected in the fixed sleeve, and a telescopic cylinder vertically arranged in the fixed sleeve for the up and down displacement of the lifting sleeve: the luffing structure includes a telescopic cylinder vertically arranged in the lifting sleeve; one end of the telescopic cylinder in the lifting sleeve is fixed at the bottom of the lifting sleeve, and the other end extends to the outside of the lifting sleeve and is connected to the working arm; the inspection vehicle further includes a support wheel arranged on the side of the vehicle body through a horizontal telescopic cylinder and a vertically arranged telescopic cylinder; the telescopic cylinder connected to the working arm is farther away from the support wheel than the telescopic cylinder for the up and down displacement of the lifting sleeve.

2. The bridge inspection vehicle according to claim 1, wherein: There are two groups of the support wheels arranged along the vehicle body.

3. The bridge inspection vehicle according to claim 1 or 2, characterized in that: The truss assembly includes a vertical frame suspended at the free end of the working arm and a workbench horizontally arranged at the bottom of the vertical frame.

4. The bridge inspection vehicle according to claim 3, characterized in that: The telescopic cylinder is a pneumatic cylinder or an electric cylinder or a hydraulic cylinder.

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