Trackless steel beam inspection car

Abstract

This invention relates to a trackless steel beam inspection vehicle, belonging to the technical field of bridge inspection vehicles. It includes several connecting blocks, which are evenly spaced along the axial direction of the steel beam at its bottom. It also includes a main beam and a first stopping assembly. The main beam is slidably mounted at the bottom of the steel beam and is located at the bottom of the connecting blocks. Two sets of the first stopping assembly are respectively located at both ends of the main beam. The first stopping assembly includes a connector, a suction head, and a connecting rod. The connector is fixedly mounted on the side wall of the main beam, and the side wall of the connector has a through hole. The connecting rod has a coaxial ventilation groove. The suction head is located at the top of the connecting rod, and the connecting rod is sleeved on the side wall of the connector. This design, by providing the ventilation groove and the through hole, allows the suction head to exert suction force when the ventilation groove and the through hole are connected, and the suction head abuts against the connecting blocks. When the ventilation groove and the through hole are not connected, the suction head does not exert suction force, and the suction head releases its abutment against the connecting blocks.

Description

Technical Field

[0001] This invention belongs to the technical field of bridge inspection vehicles, specifically relating to a trackless steel beam inspection vehicle. Background Technology

[0002] To ensure the safety of steel truss bridges and traffic, the maintenance and repair of the main load-bearing structures of the bridge is an essential task. Currently, steel beam inspection vehicles are frequently used to conduct preventative inspections and repairs on large and medium-sized steel truss bridges, providing a safety guarantee for comprehensive inspection and maintenance of all bridge structures.

[0003] For example, the invention patent with publication number CN 104343084 A provides a trackless lower chord inspection vehicle for steel truss bridges, including a main frame, a traveling mechanism, and a bottom connecting block of the steel truss. The traveling mechanism includes a traveling support, a traveling drive mechanism, a traveling shoe, a traveling support hook, and a traveling shoe hook. Two traveling mechanisms are symmetrically installed on the top surface of the main frame at both ends in the transverse direction of the bridge. The traveling drive mechanism is fixedly connected to the traveling support, and the traveling shoe meshes with the drive gear of the traveling drive mechanism through a rack. The upper ends of the traveling support and traveling shoe of the two traveling mechanisms are controlled to alternately engage with the corresponding connecting block at the bottom of the steel truss through their respective hooks, and the drive gear of the traveling drive mechanism is driven to rotate, causing the traveling shoe and traveling support to move alternately relative to the bottom connecting block of the steel truss. This design eliminates the need to lay a special traveling track for the inspection vehicle, and utilizes the self-tracking connecting block of the steel truss itself to achieve smooth and orderly movement of the inspection vehicle and to carry out inspection and maintenance. It is widely applicable to various styles of steel truss bridge structures.

[0004] Based on the search of the aforementioned patent application publication numbers, and considering their shortcomings, the following was found:

[0005] Existing trackless inspection vehicles have hooks equipped with air nozzles. These nozzles adhere to the connecting blocks to secure the vehicle to the steel truss. However, if the hooks shift at an angle, causing the air nozzles to lose their grip on the connecting blocks, and if the nozzles fail to close promptly, dust from the air will be drawn onto their surfaces and into the suction equipment. Over time, the air nozzles become so dusty that they can no longer adhere properly to the connecting blocks, creating a safety hazard when the vehicle is secured to the steel truss. Furthermore, the suction equipment connected to the air nozzles accumulates excessive dust, malfunctioning and shortening its lifespan. Summary of the Invention

[0006] To address the aforementioned problems in the prior art, this invention provides a trackless steel beam inspection vehicle, comprising several connecting blocks evenly spaced along the axial direction of the steel beam at its bottom, a main beam, and a first stop assembly. The main beam is slidably disposed at the bottom of the steel beam and located at the bottom of the connecting blocks. Two sets of the first stop assembly are respectively disposed at both ends of the main beam. The first stop assembly includes a connector, a suction head, and a connecting rod. The connector is fixedly disposed on the side wall of the main beam, and the side wall of the connector has a through hole. The connecting rod has a ventilation groove coaxially formed. The suction head is disposed at the top of the connecting rod, and the connecting rod is sleeved on the side wall of the connector. This solution, by providing a ventilation groove and a through hole, allows the suction head to exert suction force when the ventilation groove and the through hole are connected, and the suction head abuts against the connecting blocks, thereby fixing the main beam at the current position of the steel beam. When the ventilation slot and the through hole are not connected, the suction head has no suction force, and the suction head is released from its contact with the connecting block, allowing the main beam to slide along the direction of the steel beam. This solves the problem of existing trackless inspection vehicles where the hook is equipped with an air nozzle, which is used to attach the inspection vehicle to the steel truss by adhering to the connecting block. When the hook deviates at an angle, causing the air nozzle to no longer adhere to the connecting block, if the air nozzle cannot be closed in time, it will cause the air nozzle to adsorb dust from the air onto its surface and into the suction equipment. As a result, after the trackless inspection vehicle has been working for a long time, the surface of the air nozzle will not be able to properly adhere to the connecting block due to the large amount of dust adsorbed, leading to safety hazards when the trackless inspection vehicle is fixed to the steel truss. At the same time, it will also cause the suction equipment connected to the air nozzle to adsorb a large amount of dust and malfunction, shortening the service life of the suction equipment.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A trackless steel beam inspection vehicle includes several connecting blocks, which are equally spaced along the axial direction of the steel beam at the bottom of the steel beam. It also includes a main beam and a first stop assembly. The main beam is slidably disposed at the bottom of the steel beam and is located at the bottom of the connecting blocks. The first stop assembly is provided in two sets, which are respectively disposed at both ends of the main beam.

[0009] The first stopping component includes a connector, a suction head, a suction machine, and a connecting rod. The connector is fixedly mounted on the side wall of the main beam. One end of the connector has a vent hole, and the suction machine communicates with the vent hole. The side wall of the connector has a through hole, and the connecting rod has a coaxially formed vent groove. The suction head is mounted on the top of the connecting rod, and the connecting rod is sleeved on the side wall of the connector. When the vent groove is connected to the through hole, the suction head abuts against the connecting block. When the vent groove is not connected to the through hole, the suction head releases its abutment from the connecting block.

[0010] As a preferred embodiment of the present invention, the connecting rod body includes a hollow first connecting rod and a second connecting rod, the second connecting rod being vertically disposed at the top of the first connecting rod, the two connecting rods being internally connected to form a ventilation groove, the suction head being disposed at the bottom of the second connecting rod, and the first connecting rod and the connecting head being rotatably disposed together.

[0011] As a preferred embodiment of the present invention, the first stop assembly further includes a suction machine and a hydraulic rod, wherein the hydraulic rod and the bottom of the first connecting rod are hinged together, and one end of the connecting head is provided with a vent hole, and the suction machine is connected to the vent hole.

[0012] In a preferred embodiment of the present invention, the hydraulic rod includes a hollow hydraulic cylinder and a piston rod. The hydraulic cylinder is hinged to the main beam. One end of the piston rod is slidably disposed inside the hydraulic cylinder, and the other end is hinged to the first connecting rod. When the piston rod abuts against one end of the hydraulic cylinder, the suction head abuts against the connecting block. When the piston rod abuts against the other end of the hydraulic cylinder, the second connecting rod abuts against the bottom surface of the connecting block.

[0013] As a preferred embodiment of the present invention, it further includes two first collision modules, which are respectively disposed on the top of the second connecting rod of the two first stop components.

[0014] As a preferred embodiment of the present invention, the distance between the two first stop components is equal to the farthest distance between the three connecting blocks. From the direction of movement of the main beam, the first collision module that first collides with the connecting block is used to slow down the movement speed of the main beam, and the other first collision module is used to position the main beam.

[0015] As a preferred embodiment of the present invention, it further includes a movable beam, a movable gear, and a movable rack. The movable beam is slidably disposed at the bottom of the main beam, the movable rack is disposed parallel to the bottom of the main beam, and the movable gear is rotatably disposed at the top of the movable beam. The movable gear and the movable rack are meshed and connected to each other.

[0016] As a preferred embodiment of the present invention, it further includes two second stop components, which are respectively disposed at both ends of the moving beam, and the structure of the second stop components is the same as that of the first stop component.

[0017] As a preferred embodiment of the present invention, the distance between the two second stop components is equal to the farthest distance between the two adjacent connecting blocks.

[0018] As a preferred embodiment of the present invention, it further includes two second collision modules, which are respectively disposed on the top of the second connecting rods of the two second stopping components. From the direction of movement of the moving beam, the second collision module that first collides with the connecting block is used to slow down the movement speed of the moving beam, and the other second collision module is used to position the moving beam.

[0019] The beneficial effects of this invention are as follows:

[0020] This invention provides a trackless steel beam inspection vehicle, comprising several connecting blocks evenly spaced along the axial direction of the steel beam at its bottom, a main beam, and a first stopping assembly. The main beam is slidably disposed at the bottom of the steel beam and located at the bottom of the connecting blocks. Two sets of the first stopping assemblies are respectively disposed at both ends of the main beam. The first stopping assembly includes a connector, a suction head, and a connecting rod. The connector is fixedly disposed on the side wall of the main beam, and the side wall of the connector has a through hole. The connecting rod has a ventilation groove coaxially formed. The suction head is disposed at the top of the connecting rod, and the connecting rod is sleeved on the side wall of the connector. This design, by providing a ventilation groove and a through hole, allows the suction head to exert suction force when the ventilation groove and the through hole are connected, and the suction head abuts against the connecting blocks, thus fixing the main beam in the current position of the steel beam. When the ventilation groove and the through hole are not connected, the main beam is stopped. When connected, the suction head has no suction force and is released from contact with the connecting block, allowing the main beam to slide along the direction of the steel beam. This solves the problem of existing trackless inspection vehicles where the hook is equipped with an air nozzle. The air nozzle is used to hold the connecting block to fix the inspection vehicle to the steel truss. When the hook shifts at an angle, causing the air nozzle to no longer hold the connecting block, if the air nozzle cannot be closed in time, it will cause the air nozzle to absorb dust from the air onto its surface and into the suction equipment. As a result, after the trackless inspection vehicle has been working for a long time, the surface of the air nozzle will not be able to properly adhere to the connecting block due to the large amount of dust it has absorbed. This will cause safety hazards when the trackless inspection vehicle is fixed to the steel truss. At the same time, it will also cause the suction equipment connected to the air nozzle to accumulate a large amount of dust and become unable to work properly, shortening the service life of the suction equipment. Attached Figure Description

[0021] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a front view of a trackless steel beam inspection vehicle according to the present invention;

[0023] Figure 2 This is a diagram of the first stopping component of a trackless steel beam inspection vehicle according to the present invention;

[0024] Figure 3 This is a cross-sectional view of the connecting rod of a trackless steel beam inspection vehicle according to the present invention.

[0025] Figure 4 This is an internal sectional view of the hydraulic rod of a trackless steel beam inspection vehicle according to the present invention;

[0026] Figure 5 This is an internal sectional view of the connector of a trackless steel beam inspection vehicle according to the present invention.

[0027] Explanation of main symbols

[0028] In the diagram: 1. Connecting block; 2. Main beam; 3. First stop assembly; 301. Connecting head; 3011. Through hole; 302. Suction head; 303. Connecting rod body; 3031. Ventilation groove; 304. Suction machine; 305. Hydraulic rod; 3051. Hydraulic cylinder; 3052. Piston rod; 4. First connecting rod; 5. Second connecting rod; 6. First collision module; 7. Moving beam; 8. Moving gear; 9. Moving rack; 10. Second stop assembly; 11. Second collision module. Detailed Implementation

[0029] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0030] Please see Figure 1-5 This embodiment provides a trackless steel beam inspection vehicle, including a plurality of connecting blocks 1, which are equally spaced along the axial direction of the steel beam at the bottom of the steel beam. It also includes a main beam 2 and a first stop assembly 3. The main beam 2 is slidably disposed at the bottom of the steel beam and is located at the bottom of the connecting blocks 1. Two sets of the first stop assembly 3 are provided, respectively disposed at both ends of the main beam 2. The first stop assembly 3 is used to fix the main beam 2 at the current position of the steel beam, so that the main beam 2 cannot move along the setting direction of the steel beam; or to release the state of fixing the main beam 2 to the steel beam, so that the main beam 2 can move along the setting direction of the steel beam.

[0031] It should be noted that existing trackless inspection vehicles have hooks equipped with air nozzles. These nozzles are used to attach the inspection vehicle to the steel truss by adhering to the connecting block 1. When the hook shifts at an angle, causing the air nozzle to no longer adhere to the connecting block 1, if the air nozzle cannot be closed in time, it will cause the air nozzle to attract dust from the air onto its surface and into the suction equipment. As a result, after the trackless inspection vehicle has been in operation for a long time, the surface of the air nozzle will be unable to properly adhere to the connecting block 1 due to the large amount of dust it has attracted. This will create a safety hazard when the trackless inspection vehicle is fixed to the steel truss, and will also cause the suction equipment connected to the air nozzle to accumulate a large amount of dust, preventing it from working properly and shortening its service life.

[0032] Based on this, the first stop component 3 of this solution includes a connector 301, a suction machine 304, a suction head 302, and a connecting rod 303. The connector 301 is fixedly installed on the side wall of the main beam 2. One end of the connector 301 is provided with a vent hole, and the suction machine 304 is connected to the vent hole. The side wall of the connector 301 is provided with a through hole 3011. The connecting rod 303 is coaxially provided with a vent groove 3031. The suction head 302 is located on the top of the connecting rod 303. The connecting rod 303 is sleeved on the side wall of the connector 301. In this solution, the diameter of the vent groove 3031 is the same as the diameter of the through hole 3011. By rotating, the vent groove 3031 and the through hole 3011 are interconnected, or the interconnection between the vent groove 3031 and the through hole 3011 is released. Furthermore, due to the structure of the connecting rod 303 in this design, when the venting groove 3031 and the through hole 3011 are connected, the suction head 302 is connected to the suction machine 304. At this time, the suction head 302 has suction force, and the suction head 302 abuts against the connecting block 1, causing the suction head 302 to adhere to the surface of the connecting block 1, thus fixing the main beam 2 to the current position of the steel beam. When the venting groove 3031 and the through hole 3011 are not connected, the suction head 302 is not connected to the suction machine 304. At this time, the suction head 302 no longer has suction force, and the suction head 302 releases its abutment against the connecting block 1. On the one hand, this allows the main beam 2 to slide along the position of the steel beam; on the other hand, since the suction head 302 no longer has suction force when it releases its abutment against the connecting block 1, the suction head 302 will not... The system effectively absorbs surrounding dust, preventing the air nozzles from becoming too dusty to adhere properly to the connecting block 1 after prolonged use. This addresses the issue in existing trackless inspection vehicles where the hooks are equipped with air nozzles that hold the vehicle to the steel truss. When the hook shifts at an angle, causing the air nozzle to lose its grip, if it fails to close promptly, dust will be drawn onto the nozzle surface and inside the suction device. This leads to a safety hazard when the trackless inspection vehicle is fixed to the steel truss, and also causes the suction device connected to the air nozzle to become clogged with dust, malfunctioning and shortening its lifespan.

[0033] Furthermore, the connecting rod body 303 of this solution includes a hollow first connecting rod 4 and a second connecting rod 5. The second connecting rod 5 is vertically disposed on the top of the first connecting rod 4. The two connecting rods are connected to form a ventilation groove 3031. The suction head 302 is disposed at the bottom of the second connecting rod 5. The first connecting rod 4 is rotatably disposed on the side wall of the connecting head 301. Specifically, when the first connecting rod 4 is vertically mounted on the side wall of the main beam 2, the ventilation groove 3031 formed by the first connecting rod 4 and the second connecting rod 5 is interconnected with the through hole 3011 of the connector 301. The second connecting rod 5 is located at the top of the connecting block 1, and the suction head 302 mounted on the second connecting rod 5 abuts against the surface of the connecting block 1. When the suction machine 304 of this scheme starts working, since the ventilation groove 3031 and the through hole 3011 are interconnected, the suction machine 304 and the suction head 302 are interconnected, resulting in the suction head 302 having suction force, causing the suction head 302 to adhere to the surface of the connecting block 1; when the first connecting rod 4 is connected to the connector 301... When the circle rotates by a certain angle, the ventilation groove 3031 formed by the first connecting rod 4 and the second connecting rod 5 is no longer connected to the through hole 3011 of the connector 301. The second connecting rod 5 is located at the bottom of the connecting block 1, and one end of the second connecting rod 5 abuts against the bottom surface of the connecting block 1. At this time, the suction head 302 set on the second connecting rod 5 is released from the abutting relationship with the surface of the connecting block 1. Since the ventilation groove 3031 and the through hole 3011 are no longer connected, the suction machine 304 and the suction head 302 are also no longer connected, so that the suction head 302 has no suction force, thus preventing the suction head 302 from adsorbing nearby dust onto its surface.

[0034] Specifically, the first stop assembly 3 of this solution also includes a hydraulic rod 305. The hydraulic rod 305 is hinged to the bottom of the first connecting rod 4. The angular rotation of the first connecting rod 4 is controlled by the hydraulic rod 305. The hydraulic rod 305 includes a hollow hydraulic cylinder 3051 and a piston rod 3052. The hydraulic cylinder 3051 is hinged to the main beam 2. One end of the piston rod 3052 is slidably disposed inside the hydraulic cylinder 3051, and the other end extends out of the hydraulic cylinder 3051 and is hinged to the first connecting rod 4. The piston rod 3052 is along the axis of the hydraulic cylinder 3051. The piston rod 3052 moves in the linear direction. When the piston rod 3052 is released from contact with the bottom end of the hydraulic cylinder 3051, the piston rod 3052 is completely retracted into the hydraulic cylinder 3051. At this time, the first connecting rod 4 is vertically set on the side wall of the main beam 2, and the suction head 302 is in contact with the surface of the connecting block 1. When the piston rod 3052 is in contact with the top end of the hydraulic cylinder 3051, the piston rod 3052 is completely extended out of the hydraulic cylinder 3051. At this time, the first connecting rod 4 rotates at a certain angle, and the second connecting rod 5 is in contact with the bottom surface of the connecting block 1.

[0035] Furthermore, it also includes two first collision modules 6, which are respectively disposed on the top of the second connecting rods 5 of the two first stop components 3. When the piston rod 3052 abuts against the top of the hydraulic cylinder 3051, the piston rod 3052 extends completely outside the hydraulic cylinder 3051. At this time, the first connecting rod 4 rotates at a certain angle, and the second connecting rod 5 abuts against the bottom surface of the connecting block 1. The collision module disposed on the top of the second connecting rod 5 will be sensed due to abutting against the bottom surface of the connecting block 1.

[0036] Furthermore, the distance between the two first stop components 3 is equal to the farthest distance between the three connecting blocks 1. This arrangement ensures that during the movement of the main beam 2, since the distance between the first stop components 3 at both ends of the main beam 2 is equal to the farthest distance between the three connecting blocks 1, one of the first collision modules 6 on the main beam 2 will necessarily engage with one end of the connecting block 1 before the first collision module 6 reaches the other end of the connecting block 1. Only when the first collision module 6 reaches the other end of the connecting block 1 will the other first collision module 6 engage with one end of the remaining connecting blocks 1. Based on this, when the main beam 2 moves along the direction of the steel beam, from the perspective of the direction of movement of the main beam 2, there will be a first collision module 6 abutting against one end of the connecting block 1. At this time, after receiving the collision signal, the first collision module 6 will transmit the collision signal to the motor that controls the movement of the main beam 2, and control the motor to start decelerating, so that the moving speed of the main beam 2 decreases. When the moving speed of the main beam 2 gradually decreases to zero and finally stops moving, the first collision module 6 is at the other end of the connecting block 1, and the other first collision module 6 just happens to abut against one end of the other connecting block 1. The function of the other first collision module 6 is to locate the position of the main beam 2 and determine whether the positions of the two first stop components 3 are respectively under the two connecting blocks 1, so as to facilitate the subsequent adsorption and fixation of the two first stop components 3 onto the corresponding connecting blocks 1.

[0037] Furthermore, this solution also includes a movable beam 7, a movable gear 8, and a movable rack 9. The movable beam 7 is slidably disposed at the bottom of the main beam 2, the movable rack 9 is disposed parallel to the bottom of the main beam 2, and the movable gear 8 is rotatably disposed at the top of the movable beam 7. The movable gear 8 and the movable rack 9 are meshed together. Specifically, this solution also includes two second stop components 10, which are respectively disposed at both ends of the movable beam 7. The structure of the second stop components 10 is the same as that of the first stop components 3, both being used to fix to or release from the fixing relationship with the connecting block 1. When the two first stop components 3 are fixedly adsorbed onto the corresponding connecting block 1, the two second stop components 10 are released from the corresponding connecting block 1. Corresponding to the fixed relationship of the connecting block 1, the moving rack 9 begins to mesh and move along the direction of the moving rack 9, so that the moving beam 7 moves along the setting direction of the main beam 2. It should be noted that this solution also includes an inspection component, which is used to inspect the condition of the steel beam. The inspection component is connected to the moving beam 7, so that the inspection component follows the movement of the moving beam 7 to inspect the steel beam at different positions. When the two first stop components 3 release their fixed adsorption relationship with the corresponding connecting block 1, the two second stop components 10 are fixedly adsorbed on the corresponding connecting block 1. At this time, the moving rack 9 begins to mesh and move along the direction of the moving rack 9, so that the main beam 2 moves along the setting direction of the steel beam.

[0038] Furthermore, in order to prevent the second stop component 10 from interfering with the first stop component 3, the distance between the two second stop components 10 in this scheme is equal to the farthest distance between two adjacent connecting blocks 1. Since the distance between the two first stop components 3 is equal to the farthest distance between the three connecting blocks 1, it can be guaranteed that the first stop component 3 and the second stop component 10 will not interfere with each other.

[0039] Furthermore, it also includes two second collision modules 11, which are respectively disposed on the second connecting rods 5 of the two second stop components 10. From the direction of movement of the moving beam 7, the second collision module 11 that first collides with the connecting block 1 is used to slow down the movement speed of the moving beam 7, and the other second collision module 11 is used to position the moving beam 7. With this arrangement, during the movement of the moving beam 7, since the distance between the second stop components 10 disposed at both ends of the moving beam 7 is equal to the farthest distance between the adjacent connecting blocks 1, one of the second collision modules 11 disposed on the moving beam 7 will definitely engage with one end of the connecting block 1 first. When the second collision module 11 reaches the other end of the connecting block 1, the other second collision module 11 will engage with one end of the remaining connecting block 1. Based on this, when the moving beam 7 moves along the direction of the steel beam, from the direction of movement of the moving beam 7, there will be a second collision module 11 abutting against one end of the connecting block 1. At this time, after receiving the collision signal, the second collision module 11 will transmit the collision signal to the motor that controls the movement of the moving beam 7, and control the motor to start decelerating, so that the moving speed of the moving beam 7 decreases. When the moving speed of the moving beam 7 gradually decreases to zero and finally stops moving, the second collision module 11 is at the other end of the connecting block 1, and the other second collision module 11 is in contact with one end of the other connecting block 1. The function of the other second collision module 11 is to locate the position of the moving beam 7 and determine whether the positions of the two second stop components 10 are respectively under the two connecting blocks 1, so as to facilitate the subsequent adsorption and fixation of the two second stop components 10 onto the corresponding connecting blocks 1.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A trackless steel beam inspection vehicle, comprising a plurality of connecting blocks, the plurality of connecting blocks are arranged equidistantly along the axial direction of the steel beam at the bottom of the steel beam, characterized in that: It also includes the main beam and the first stop component, the main beam is arranged at the bottom of the steel beam, and the main beam is located at the bottom of the connecting block, and the first stop component is provided with two groups, which are arranged at the two ends of the main beam respectively. The first stop component includes a connecting head, a suction head, a suction machine and a connecting rod body, the connecting head is fixedly arranged on the side wall of the main beam, one end of the connecting head is provided with a ventilation hole, the suction machine is communicated with the ventilation hole, the side wall of the connecting head is provided with a through hole, the connecting rod body is coaxially provided with a ventilation groove, the suction head is arranged at the top of the connecting rod body, and the connecting rod body is sleeved on the side wall of the connecting head; when the ventilation groove is communicated with the through hole, the suction head is in abutting connection with the connecting block; when the ventilation groove is not communicated with the through hole, the suction head is out of abutting connection with the connecting block. The connecting rod body includes a first connecting rod and a second connecting rod which are hollow, the second connecting rod is arranged vertically at the top of the first connecting rod, the two connecting rods are communicated to form a ventilation groove, the suction head is arranged at the bottom of the second connecting rod, and the first connecting rod is rotatably arranged on the connecting head. The first stop component further includes a hydraulic rod, and the hydraulic rod is hingedly arranged at the bottom of the first connecting rod. The hydraulic rod includes a hollow hydraulic cylinder and a piston rod, the hydraulic cylinder is hingedly arranged on the main beam, one end of the piston rod is slidably arranged in the hydraulic cylinder, and the other end of the piston rod is hingedly arranged on the first connecting rod; when the piston rod is in abutting contact with one end of the hydraulic cylinder, the suction head is in abutting connection with the connecting block; when the piston rod is in abutting contact with the other end of the hydraulic cylinder, the second connecting rod is in abutting connection with the bottom surface of the connecting block.

2. A rail less steel beam inspection vehicle as claimed in claim 1, wherein: Two first collision modules are further included, and the two first collision modules are arranged at the top of the second connecting rod of the two first stop components respectively.

3. A rail less steel beam inspection vehicle as claimed in claim 2, wherein: The distance between the two first stop components is equal to the farthest distance between the three connecting blocks, and the first collision module which first collides with the connecting block from the moving direction of the main beam is used to slow down the moving speed of the main beam, and the other first collision module is used to position the main beam.

4. A rail less steel beam inspection vehicle as claimed in claim 3, wherein: A moving beam, a moving gear and a moving rack are further included, the moving beam is slidably arranged at the bottom of the main beam, the moving rack is arranged in parallel at the bottom of the main beam, and the moving gear is rotatably arranged at the top of the moving beam.

5. A rail less steel beam inspection vehicle as claimed in claim 4, wherein: Two second stop components are further included, and the two second stop components are arranged at the two ends of the moving beam respectively, and the structure of the second stop component is consistent with that of the first stop component.

6. A rail less steel beam inspection vehicle as claimed in claim 5, wherein: The distance between the two second stop components is equal to the farthest distance between the two adjacent connecting blocks.

7. A rail less steel beam inspection vehicle as claimed in claim 6, wherein: Two second collision modules are further included, and the two second collision modules are arranged at the top of the second connecting rod of the two second stop components respectively, and the second collision module which first collides with the connecting block from the moving direction of the moving beam is used to slow down the moving speed of the moving beam, and the other second collision module is used to position the moving beam.

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