Suspension mechanism and bridge detection device

Abstract

The utility model provides a suspension mechanism and a bridge detection device. The suspension mechanism comprises a suspension arm and an anti-falling assembly. One end of the suspension arm is connected with the detection beam, and the other end is inserted into a gap of a bridge; the anti-falling component comprises a driving part and a limiting part, the driving part is mounted on the suspension arm, the limiting part is rotatably arranged at the other end of the suspension arm and is in driving connection with the driving part, and the driving part drives the limiting part to rotate, so that the limiting part has an anti-falling state and an unlocking state; wherein in the anti-falling state, the suspension arm is limited on the bridge by the limiting piece; in the unlocking state, the limiting piece relieves limiting between the suspension arm and the bridge. When a specific position of a bridge needs to be detected, the suspension arm is inserted into a gap between two beam bodies on the bridge, the driving part drives the limiting part to rotate, and the suspension arm is limited on the bridge, so that the suspension arm is prevented from being separated from the gap between the beam bodies, the detection beam is stably hung on the bridge, and the safety and reliability of bridge detection are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of bridge detection, and in particular relates to a suspension mechanism and a bridge detection device. Background Art

[0002] As bridges age, regular inspections of their safety and durability become increasingly important. Existing bridge inspection methods primarily include manual patrols and inspections using bridge inspection vehicles. Bridge inspection vehicles, with their advantages of high automation and efficiency, are widely used in bridge inspection technology.

[0003] The existing bridge inspection vehicle includes a detection beam and a suspension arm. The detection beam is set on one side of the bridge and hung on the bridge through the suspension arm. When performing bridge inspection, the detection beam is driven by a driving mechanism to move along the length direction of the bridge, thereby realizing inspection of different positions of the bridge.

[0004] Existing suspension arms are inserted into the gap between two bridge beams to hold the inspection beam on the bridge. Because the suspension arms are movable relative to the beams, they can easily become detached from the gap when the inspection beam needs to travel across the bridge, compromising the safety and reliability of bridge inspections. Utility Model Content

[0005] The embodiments of the present application provide a suspension mechanism and a bridge inspection device to solve the problem in the prior art that the suspension arm is easily detached from the beam body during bridge inspection.

[0006] In a first aspect, an embodiment of the present application provides a suspension mechanism, comprising:

[0007] a suspension arm, one end of which is used to connect to the detection beam, and the other end of which is used to be inserted into the gap of the bridge;

[0008] An anti-falling assembly, comprising a driving member and a limiting member, wherein the driving member is mounted on the suspension arm, and the limiting member is rotatably disposed at the other end of the suspension arm and is drivingly connected to the driving member, wherein the driving member drives the limiting member to rotate so that the limiting member has an anti-falling state and an unlocked state;

[0009] Wherein, in the anti-falling state, the limiting member limits the suspension arm to the bridge; in the unlocking state, the limiting member releases the limitation between the suspension arm and the bridge.

[0010] Optionally, the limiting member is rotatable along the circumference of the suspension arm.

[0011] Optionally, the limiting member rotates in a plane parallel to the suspension arm, and in the unlocked state, the limiting member is parallel to the suspension arm; in the anti-falling state, the limiting member is tilted relative to the suspension arm.

[0012] Optionally, the limiting member is a connecting rod, a rotating shaft is provided at the end of the suspension arm, a rotating hole is opened at one end of the connecting rod, and the rotating shaft is inserted into the rotating hole.

[0013] Optionally, a rotation groove is provided on one side of the suspension arm, and two ends of the rotating shaft are respectively connected to two opposite groove walls of the rotation groove.

[0014] Optionally, the anti-falling assembly further includes a rotating wheel, which is rotatably disposed at an end of the connecting rod away from the suspension arm.

[0015] Optionally, the anti-falling component further includes a bearing, the bearing is sleeved on one end of the connecting rod, and the rotating wheel is sleeved on the outside of the bearing.

[0016] Optionally, the connecting rod includes at least two sleeves, and one sleeve can be telescopically inserted into the other sleeve to adjust the length of the connecting rod.

[0017] Optionally, the suspension mechanism further includes a pressure sensor, which is arranged at an end of the suspension arm away from the detection beam.

[0018] In a second aspect, an embodiment of the present application further provides a bridge detection device, which includes the detection beam and any of the suspension mechanisms described above.

[0019] The suspension mechanism provided in the embodiment of the present application includes a suspension arm and an anti-falling assembly. One end of the suspension arm is used to connect to the detection beam, and the other end is used to insert into the gap of the bridge; the anti-falling assembly includes a driving member and a limiting member, the driving member is installed on the suspension arm, and the limiting member is rotatably arranged at the other end of the suspension arm and is connected to the driving member, and the driving member drives the limiting member to rotate, so that the limiting member has an anti-falling state and an unlocked state; wherein, in the anti-falling state, the limiting member limits the suspension arm to the bridge; in the unlocked state, the limiting member releases the limit between the suspension arm and the bridge. When it is necessary to detect a specific position of the bridge, the suspension arm is inserted into the gap between the two beams on the bridge, and the driving member drives the limiting member to rotate, limiting the suspension arm to the bridge, thereby preventing the suspension arm from detaching from the gap between the beams when the detection beam is moving, so that the detection beam is stably hung on the bridge, improving the safety and reliability of bridge detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. It is possible for those skilled in the art to derive other drawings based on these drawings without inventive effort.

[0021] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0022] Figure 1 A schematic structural diagram of the suspension mechanism provided in an embodiment of the present application.

[0023] Figure 2 for Figure 1 Schematic cross-sectional view of the AA area.

[0024] Description of reference numerals:

[0025] 1. Suspension mechanism; 10. Suspension arm; 11. Rotating shaft; 12. Rotating groove; 20. Anti-fall assembly; 21. Connecting rod; 211. Rotating hole; 22. Rotating wheel; 23. Bearing; 30. Pressure sensor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0027] In order to ensure the safe use of bridges and extend their service life, they need to be regularly inspected for safety and durability. Among the many bridge inspection methods, bridge inspection vehicles have become a widely used technology due to their high degree of automation and high inspection efficiency. Bridge inspection vehicles are usually equipped with an inspection beam and a suspension arm 10. The inspection beam is located on one side of the bridge and is suspended on the bridge by the suspension arm 10. During the inspection process, the inspection beam will move along the length of the bridge in order to inspect different parts of the bridge. However, due to the lack of an anti-falling device, the suspension arm 10 of the inspection beam is prone to fall off from the gap between the bridge beams during movement, which may cause the inspection beam to lose support during movement, thereby seriously affecting the efficiency and safety of the inspection work.

[0028] In order to solve the problem in the prior art that the suspension arm 10 is easily detached from the beam body during bridge inspection, an embodiment of the present application provides a suspension mechanism 1 and a bridge inspection device, which will be described below with reference to the accompanying drawings.

[0029] like Figures 1 to 2 As shown, the suspension mechanism 1 of the present application includes a suspension arm 10 and an anti-falling assembly 20; one end of the suspension arm 10 is used to connect to the detection beam, and the other end is used to insert into the gap of the bridge; the anti-falling assembly 20 includes a driving member and a limiting member, the driving member is installed on the suspension arm 10, and the limiting member is rotatably provided at the other end of the suspension arm 10 and is drivingly connected to the driving member. The driving member drives the limiting member to rotate, so that the limiting member has an anti-falling state and an unlocked state;

[0030] In the anti-falling state, the limiting member limits the suspension arm 10 to the bridge; in the unlocking state, the limiting member releases the limitation between the suspension arm 10 and the bridge.

[0031] Specifically, one end of the suspension arm 10 is connected to the detection beam by welding, riveting, or using fasteners such as bolts, pins, or snap rings to ensure a stable and secure connection between the suspension arm 10 and the detection beam, while the other end extends perpendicular to the detection beam. The cross-section of the suspension arm 10 is designed to be compatible with the bridge gap, so that after the suspension arm 10 is inserted into the gap, the side surface of its end can fit tightly against the bridge, thereby increasing the contact area between the suspension arm 10 and the bridge, providing greater friction and support area, preventing the suspension arm 10 from sliding under the weight of the detection beam, and allowing the detection beam to be stably hung on the bridge, thereby improving safety during the detection process.

[0032] The driving member can be a driving device such as a motor, a cylinder or a hydraulic press, and the driving member is used to drive the rotation of the limiting member.

[0033] The limiting member can be a connecting rod 21 structure, a structure combining the connecting rod 21 and the rotating wheel 22, or a snap-fit ​​structure. The limiting member cooperates with the bridge limit to limit the movement of the suspension arm 10, thereby ensuring that the suspension arm 10 is firmly inserted into the gap of the bridge. When it is necessary to inspect a specific position of the bridge, the suspension arm 10 is inserted into the gap between the two beams on the bridge, and the driving member drives the limiting member to rotate, limiting the suspension arm 10 to the bridge, thereby preventing the suspension arm 10 from detaching from the gap between the beams when the inspection beam moves, thereby achieving the purpose of stably hanging the inspection beam on the bridge and improving the safety and reliability of bridge inspection. When it is necessary to switch to the next inspection position, the driving member drives the limiting member to rotate, releasing the limit between the suspension arm 10 and the bridge, so that the suspension arm 10 can easily detach from the gap of the bridge, so that the inspection beam can move freely and be fixed to other positions on the bridge. The ability of the limiting member to quickly unlock not only improves the efficiency of bridge inspection, but also simplifies the operation process, allowing the inspection beam to be quickly moved to the next inspection position or for maintenance.

[0034] Optionally, the limiting member can be rotatably arranged along the circumference of the suspension arm 10, that is, along Figure 2 Rotate in the X direction.

[0035] Specifically, in the anti-drop state, the driver drives the limiter to rotate around the circumference of the suspension arm 10 until it is positioned opposite the inner side of the bridge. At this time, the limiter and the inner side of the bridge can be set to contact or have a certain gap, which can effectively limit the suspension arm 10 on the bridge and prevent the suspension arm 10 from falling due to the movement of the detection beam or external forces. In the unlocked state, the driver drives the limiter to rotate around the circumference of the suspension arm 10 until it is positioned opposite the gap of the bridge. At this time, the suspension arm 10 can easily disengage from the gap, allowing the detection beam to move quickly on the bridge, thereby adapting to different detection needs and improving work efficiency.

[0036] Optionally, the limiting member rotates in a plane parallel to the suspension arm 10 , and in the unlocked state, the limiting member is parallel to the suspension arm 10 ; in the anti-falling state, the limiting member is tilted relative to the suspension arm 10 .

[0037] Specifically, in this embodiment, the limiting member is along Figure 2 The limiter rotates in the Y direction. In the anti-fall state, the limiter is driven by the driving member to rotate to a position parallel to the inner side of the bridge or at an acute angle to the inner side of the bridge. That is, at this time, the limiter is tilted relative to the suspension arm 10. The limiter is at least partially arranged opposite to the bridge and forms a limit between the bridge, thereby effectively preventing the suspension arm 10 from sliding or falling off due to the movement of the detection beam or the action of external forces during the detection process, thereby ensuring that the detection beam is stably suspended on the bridge. In the unlocked state, the driving member drives the limiter to rotate again, making it parallel to the suspension arm 10, so that the suspension arm 10 can easily disengage from the gap in the bridge, thereby facilitating the movement or repositioning of the detection beam.

[0038] Optionally, the limiting member is a connecting rod 21 , and a rotating shaft 11 is provided at the end of the suspension arm 10 . A rotating hole 211 is opened at one end of the connecting rod 21 , and the rotating shaft 11 is inserted into the rotating hole 211 .

[0039] In this embodiment, the limiting member is a connecting rod 21, which rotates around the rotating shaft 11 so that the limiting member can flexibly rotate at the end of the suspension arm 10, so that the suspension arm 10 can be adjusted according to the specific structure of the bridge to achieve the optimal fixed position, thereby improving the flexibility and efficiency of detection.

[0040] The connecting rod 21 is made of high-strength steel to ensure stability when subjected to large forces. The diameter and length of the rotating shaft 11 are adapted to the size and weight of the suspension arm 10 to ensure the firmness and reliability of the connection. The inner diameter of the rotating hole 211 is slightly larger than the outer diameter of the rotating shaft 11 to ensure that the rotating shaft 11 can rotate freely in the rotating hole 211. The cooperation between the connecting rod 21 and the rotating shaft 11 can effectively limit the suspension arm 10 to the bridge in the anti-fall state, ensuring the stability of the detection beam on the bridge, and at the same time quickly release the limit between the suspension arm 10 and the bridge in the unlocked state, so that the suspension arm 10 can easily detach from the gap in the bridge.

[0041] Optionally, a rotation groove 12 is opened on one side of the suspension arm 10 , and two ends of the rotation shaft 11 are respectively connected to two opposite groove walls of the rotation groove 12 .

[0042] In this embodiment, by connecting the rotating shaft 11 between the two groove walls of the rotating groove 12, the suspension arm 10 and the connecting rod 21 are stably rotatably connected. The two groove walls of the rotating groove 12 form a limit for the rotating shaft 11, thereby limiting the movement range of the rotating shaft 11 and ensuring the stability of the connecting rod 21 during the rotation process.

[0043] The two opposing walls of the rotation slot 12 are parallel to each other and serve to mount the rotating shaft 11. The other two opposing sides of the rotation slot 12 are open, providing clearance for the rotation of the connecting rod 21. Threaded holes are provided in the two groove walls, and the ends of the rotating shaft 11 are threadedly connected to the threaded holes, achieving a removable connection between the rotating shaft 11 and the suspension arm 10. In other embodiments, the rotating shaft 11 and the suspension arm 10 may also be designed as an integral structure.

[0044] Optionally, the anti-falling assembly 20 further includes a rotating wheel 22 , which is rotatably disposed at an end of the connecting rod 21 away from the suspension arm 10 .

[0045] It can be understood that when the detection beam moves on the beam body, the rotating wheel 22 moves and rotates accordingly, so as to convert the static friction between the connecting rod 21 and the bridge into dynamic friction between the rotating wheel 22 and the bridge, thereby reducing the resistance of the suspension arm 10 when moving in the gap of the bridge, thereby reducing the risk of wear and damage of the connecting rod 21 due to friction with the bridge, and extending the service life of the suspension arm 10 and the connecting rod 21.

[0046] Furthermore, in the anti-drop state, the rotating wheel 22 contacts the inner side of the bridge, providing an additional support point and increasing the stability of the suspension arm 10, preventing it from falling due to external forces. In the unlocked state, the rotating wheel 22 can rotate smoothly, allowing the suspension arm 10 to easily disengage from the bridge gap, facilitating the detection of beam movement or repositioning.

[0047] Optionally, the anti-falling component 20 further includes a bearing 23 , the bearing 23 is sleeved on one end of the connecting rod 21 , and the rotating wheel 22 is sleeved on the outside of the bearing 23 .

[0048] In this embodiment, a through-hole is provided in the center of the rotating wheel 22 for mounting a bearing 23 or for direct connection to the connecting rod 21. This allows the rotating wheel 22 to rotate freely on the bridge. The bearing 23 is a rolling bearing, with its inner and outer diameters adapted to the dimensions of the connecting rod 21 and the rotating wheel 22. The inner ring of the bearing 23 fits tightly against the connecting rod 21, while the outer ring fits tightly against the inner wall of the rotating wheel 22. This effectively reduces friction between the connecting rod 21 and the rotating wheel 22, ensuring smooth rotation of the rotating wheel 22. This also reduces frictional wear on the connecting rod 21 and the rotating wheel 22, thereby extending their service life.

[0049] Optionally, the connecting rod 21 includes at least two sleeves, and one sleeve can be telescopically inserted into the other sleeve to adjust the length of the connecting rod 21.

[0050] In this embodiment, connecting rod 21 is composed of two or more sleeves, with the inner sleeve being telescopically inserted into the outer sleeve, allowing the length of connecting rod 21 to be adjusted according to the size of the bridge gap. As the size of the bridge gap changes, adjusting the length of connecting rod 21 ensures sufficient contact area between connecting rod 21 and the bridge, stably restraining suspension arm 10 and preventing the risk of falling due to inappropriate length. This ensures that suspension mechanism 1 can adapt to bridge gaps of varying sizes, greatly improving the adaptability and flexibility of suspension mechanism 1.

[0051] Optionally, the suspension mechanism 1 further includes a pressure sensor 30 , which is provided at an end of the suspension arm 10 away from the detection beam.

[0052] In this embodiment, the pressure sensor 30 can be installed on the end face or side face of the suspension arm 10 to monitor the pressure on the end face of the suspension arm 10 in real time, thereby ensuring that the suspension arm 10 is correctly inserted into the bridge gap.

[0053] The pressure sensor 30, a strain gauge or capacitive pressure sensor, is highly sensitive. When the arm 10 is inserted into the gap, it detects changes in pressure at the end of the arm 10. If the pressure sensor 30 shows no pressure, this likely indicates that the arm 10 is inserted into the gap. Conversely, if the pressure sensor 30 shows an increase, it indicates that the arm 10 is abutting the bridge and not inserted into the gap. An alarm sounds, prompting the operator to resume the operation.

[0054] Illustratively, an embodiment of the present application further provides a bridge detection device, which includes a detection beam and any of the suspension mechanisms 1 described above.

[0055] In this embodiment, the suspension mechanism 1 provides a stable support point for the inspection beam, ensuring that the suspension arm 10 does not fall off during the movement of the inspection beam. Furthermore, the suspension mechanism 1 can be quickly adjusted to unlock the inspection beam from the bridge when necessary. This design not only improves the safety of bridge inspections but also optimizes the efficiency of the inspection process. The combination of the suspension mechanism 1 and the inspection beam enables the bridge inspection device to achieve efficient and stable bridge inspection operations while ensuring safety.

[0056] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0057] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0058] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present invention. 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 can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0060] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A suspension mechanism for suspending a detection beam on a bridge, characterized in that: The suspension mechanism (1) comprises: a suspension arm (10), one end of the suspension arm (10) being used for connecting to the detection beam, and the other end being used for inserting into the gap of the bridge; An anti-falling assembly (20), the anti-falling assembly (20) comprising a driving member and a limiting member, the driving member being mounted on the suspension arm (10), the limiting member being rotatably disposed at the other end of the suspension arm (10) and being drivably connected to the driving member, the driving member driving the limiting member to rotate so that the limiting member has an anti-falling state and an unlocked state; Wherein, in the anti-falling state, the limiting member limits the suspension arm (10) to the bridge; in the unlocking state, the limiting member releases the limitation between the suspension arm (10) and the bridge.

2. The suspension mechanism according to claim 1, wherein: The limiting member is rotatably arranged along the circumference of the suspension arm (10).

3. The suspension mechanism according to claim 1, wherein: The limiting member rotates in a plane parallel to the suspension arm (10); in the unlocked state, the limiting member is parallel to the suspension arm (10); in the anti-falling state, the limiting member is tilted relative to the suspension arm (10).

4. The suspension mechanism according to any one of claims 1 to 3, characterized in that: The limiting member is a connecting rod (21), a rotating shaft (11) is provided at the end of the suspension arm (10), a rotating hole (211) is opened at one end of the connecting rod (21), and the rotating shaft (11) is inserted into the rotating hole (211).

5. The suspension mechanism according to claim 4, wherein: A rotation groove (12) is provided on one side of the suspension arm (10), and two ends of the rotation shaft (11) are respectively connected to two opposite groove walls of the rotation groove (12).

6. The suspension mechanism according to claim 4, wherein: The anti-falling assembly (20) further comprises a rotating wheel (22), and the rotating wheel (22) is rotatably arranged at an end of the connecting rod (21) away from the suspension arm (10).

7. The suspension mechanism according to claim 6, wherein: The anti-falling assembly (20) further comprises a bearing (23), wherein the bearing (23) is sleeved on one end of the connecting rod (21), and the rotating wheel (22) is sleeved on the outside of the bearing (23).

8. The suspension mechanism according to claim 4, wherein: The connecting rod (21) comprises at least two sleeves, one sleeve being telescopically inserted into the other sleeve to adjust the length of the connecting rod (21).

9. The suspension mechanism according to any one of claims 1 to 3, characterized in that: The suspension mechanism (1) further comprises a pressure sensor (30), wherein the pressure sensor (30) is arranged at an end of the suspension arm (10) away from the detection beam.

10. A bridge detection device, characterized in that: The bridge detection device comprises a detection beam and a suspension mechanism (1) according to any one of claims 1 to 9.

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