A bridge engineering detection device based on BIM technology

Abstract

The present invention belongs to the technical field of bridge detection, and specifically relates to a bridge engineering detection device based on BIM technology. An electric telescopic rod is installed between an upper frame and a lower frame; crawling wheels are installed inside the upper frame and the lower frame, and the crawling wheels are connected with a driving unit; a detection module is installed on the upper frame and the lower frame; an obstacle avoidance mechanism is used to drive the crawling wheels to contact and disengage from the surface of the cable; an auxiliary mechanism is respectively installed at one end of the upper frame and the lower frame away from the electric telescopic rod, and the auxiliary mechanism is used to assist the obstacle avoidance mechanism to avoid bumps and pits on the cable. The present invention solves the problem that the surface of the existing cable will have protrusions and pits due to long-term exposure to the air. During the movement of the existing cable detection device on the cable surface, on the one hand, the crawling wheels will shake when passing over protrusions and pits, affecting the stability of the detection device; on the other hand, the crawling wheels are likely to cause secondary damage to the damaged part of the cable surface when passing over protrusions and pits.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge detection, and specifically relates to a bridge engineering detection device based on BIM technology. Background Art

[0002] Steel cables are one of the core components of cable bridges such as arch bridges, cable-stayed bridges, and suspension bridges. As load-bearing components, their stress conditions play an extremely important role in the safety of the overall bridge structure; the working state of the steel cables is one of the important indicators of whether the bridge is in a safe state. Due to the long-term exposure of steel cables to the air, affected by factors such as wind and rain, ultraviolet radiation, and human damage, the surface protective layer will harden and be damaged, which will then cause the internal steel wire bundles or steel strands to be corroded, and in severe cases, even wire breakage will occur; on the other hand, due to reasons such as wind vibration and rain vibration, the friction between the steel wire bundles inside the steel cable causes wire wear, and in severe cases, wire breakage will also occur; it is necessary to regularly detect both inside and outside the steel cable system.

[0003] The surface of the cable will have protrusions and pits due to long-term exposure to the air. During the movement of the existing cable detection equipment on the cable surface, on the one hand, the crawling wheels will shake when passing over protrusions and pits, affecting the stability of the detection equipment; on the other hand, the crawling wheels are likely to cause secondary damage to the damaged part of the cable surface when passing over protrusions and pits.

[0004] Based on this, the present invention designs a bridge engineering detection device based on BIM technology to solve the above-mentioned existing technical problems. Summary of the Invention

[0005] To make up for the deficiencies and solve the problem that the surface of the existing cable will have protrusions and pits due to long-term exposure to the air, and during the movement of the existing cable detection equipment on the cable surface, on the one hand, the crawling wheels will shake when passing over protrusions and pits, affecting the stability of the detection equipment; on the other hand, the crawling wheels are likely to cause secondary damage to the damaged part of the cable surface when passing over protrusions and pits, the present invention proposes a bridge engineering detection device based on BIM technology.

[0006] The technical solution adopted by the present invention to solve its technical problems is: A bridge engineering detection device based on BIM technology described in the present invention includes: an upper frame, a lower frame, and a control system;

[0007] This detection device further includes:

[0008] An electric telescopic rod, which is installed between the upper frame and the lower frame;

[0009] Crawling wheels, which are installed inside the upper frame and the lower frame, and the crawling wheels are connected to a driving unit;

[0010] A detection module, which is installed on the upper frame and the lower frame;

[0011] An obstacle avoidance mechanism, which is connected to the crawling wheel and is used to drive the crawling wheel to contact and disengage from the surface of the cable;

[0012] An auxiliary mechanism, which is respectively installed at one end of the upper frame and the lower frame away from the electric telescopic rod, and is used to assist the obstacle avoidance mechanism to avoid bumps and pits on the cable.

[0013] Preferably, the obstacle avoidance mechanism includes:

[0014] A sliding plate, which is slidably connected to the sides of the upper frame and the lower frame. A driving unit is fixedly connected to one end face of the sliding plate close to the center of the cable, and the driving unit is fixedly connected to the crawling wheel;

[0015] An electric push rod, the extending end of which is fixedly connected to the other end face of the sliding plate, and the other end of which is fixedly connected to the outer walls of the upper frame and the lower frame.

[0016] Preferably, the auxiliary mechanism includes:

[0017] A bidirectional telescopic plate, one end face of which is detachably connected to the upper frame or the lower frame;

[0018] Fixed rings, two of which are respectively located at both ends of the bidirectional telescopic plate; one of the fixed rings is fixedly connected to one end of the bidirectional telescopic plate, and the other fixed ring is detachably connected to the other end of the bidirectional telescopic plate.

[0019] Preferably, the upper frame and the lower frame are triangular, and an annular outer shell is sleeved outside the upper frame and the lower frame.

[0020] Preferably, the upper frame and the lower frame are arranged to deflect 60° around the cable as the center.

[0021] Preferably, the detection module is installed inside the top angles of the upper frame and the lower frame.

[0022] Preferably, the annular outer shell is made of a lightweight metal material.

[0023] Preferably, a rotating groove is formed on the inner wall of the annular outer shell, and the upper frame and the lower frame are rotatably connected to the rotating groove.

[0024] Preferably, an anti-slip sheet is fixedly connected to the inside of the fixed ring.

[0025] Preferably, strip-shaped grooves are formed on the surface of the anti-slip sheet.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. For the bridge engineering detection device based on BIM technology of the present invention, by setting the electric telescopic rod and the fixing ring, when there are pits and protrusions on the moving track of the crawling wheel on the cable surface, in order to avoid the vibration of the crawling wheel when passing over the protrusions and pits, resulting in an unstable effect presented by the detection device; through the cooperation between the fixing ring and the electric telescopic rod, the crawling wheel is made to avoid passing over the protrusions and pits, so that the detection device is more stable during operation, and at the same time, further damage to the cable surface is reduced.

[0028] 2. For the bridge engineering detection device based on BIM technology of the present invention, the upper frame and the lower frame are deflected by 60°, so that the positions where the crawling wheels on the upper frame and the lower frame are distributed are different; on the one hand, the force distribution of the detection device on the cable surface is made more uniform, and on the other hand, when the detection module detects protrusions and pits on the traveling track of the crawling wheel, only by moving the fixing ring at the upper and lower positions once, the upper frame or the lower frame can be moved to the upper end of the protrusions and pits, without moving both the upper frame and the lower frame to the upper end of the protrusions and pits. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Figure 1 is a perspective view of the present invention;

[0031] Figure 2 is a perspective view of the present invention with the annular outer shell removed;

[0032] Figure 3 is a top view of the present invention;

[0033] Figure 4 is a perspective view of the upper frame of the present invention;

[0034] Figure 5 is a perspective view of the auxiliary mechanism of the present invention;

[0035] In the figure: 1, upper frame; 2, lower frame; 3, electric telescopic rod; 4, crawling wheel; 5, drive unit; 6, detection module; 71, sliding plate; 72, electric push rod; 81, double telescopic plate; 82, fixing ring; 10, anti-slip sheet; 11, groove; 12, rotating groove; 13, annular outer shell. DETAILED DESCRIPTION OF THE INVENTION

[0036] To make the objectives, technical means, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0037] By providing a bridge engineering detection device based on BIM technology, the embodiments of the present invention solve the technical problems that the surface of the existing cable will have protrusions and pits due to long-term exposure to the air, and during the movement of the existing cable detection device on the cable surface, on the one hand, the crawling wheels will shake when passing over protrusions and pits, affecting the stability of the detection device; on the other hand, the crawling wheels are likely to cause secondary damage to the damaged part of the cable surface when passing over protrusions and pits.

[0038] The technical solutions in the embodiments of the present invention to solve the above technical problems are generally as follows: By setting an electric telescopic rod and a fixing ring, when there are pits and protrusions on the moving track of the crawling wheel on the cable surface, in order to avoid the vibration of the crawling wheel when passing over protrusions and pits, resulting in an unstable effect presented by the detection device; through the cooperation between the fixing ring and the electric telescopic rod, the crawling wheel is made to avoid passing over protrusions and pits, so that the detection device is more stable during operation, and at the same time, further damage to the cable surface is reduced.

[0039] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0040] As Figures 1 to 5 shown, a bridge engineering detection device based on BIM technology described in the present invention includes: an upper frame 1, a lower frame 2, and a control system.

[0041] The detection device further includes:

[0042] An electric telescopic rod 3, which is installed between the upper frame 1 and the lower frame 2;

[0043] A crawling wheel 4, which is installed inside the upper frame 1 and the lower frame 2, and the crawling wheel 4 is connected to a driving unit 5;

[0044] A detection module 6, which is installed on the upper frame 1 and the lower frame 2;

[0045] An obstacle avoidance mechanism, which is connected to the crawling wheel 4, and the obstacle avoidance mechanism is used to drive the crawling wheel 4 to contact and disengage from the cable surface;

[0046] Auxiliary mechanism, the auxiliary mechanisms are respectively installed at one ends of the upper frame 1 and the lower frame 2 away from the electric telescopic rod 3, and the auxiliary mechanisms are used to assist the obstacle avoidance mechanism to avoid bumps and pits on the cable;

[0047] As an embodiment of the present invention, as Figure 4 shown, the obstacle avoidance mechanism includes:

[0048] A sliding plate 71, the sliding plate 71 is slidably connected to each side of the upper frame 1 and the lower frame 2, and a driving unit 5 is fixedly connected to one end face of the sliding plate 71 close to the cable center, and the driving unit 5 is fixedly connected to the crawling wheel 4;

[0049] An electric push rod 72, the extending end of the electric push rod 72 is fixedly connected to the other end face of the sliding plate 71, and the other end of the electric push rod 72 is fixedly connected to the outer walls of the upper frame 1 and the lower frame 2;

[0050] As an embodiment of the present invention, as Figure 5 shown, the auxiliary mechanism includes:

[0051] A two-way telescopic plate 81, one end face of the two-way telescopic plate 81 is detachably connected to the upper frame 1 or the lower frame 2;

[0052] Fixed rings 82, two fixed rings 82 are respectively located at both ends of the two-way telescopic plate 81; one of the fixed rings 82 is fixedly connected to one end of the two-way telescopic plate 81, and the other fixed ring 82 is detachably connected to the other end of the two-way telescopic plate 81;

[0053] First, before the cable detection device starts to work, one side of the upper frame 1 and the lower frame 2 is hinged. In the initial state, the electric push rod 72 contracts to drive the crawling wheel 4 to be located at a position away from the upper frame 1 and the lower frame 2; first open the hinged side of the upper frame 1 and the lower frame 2, place the cable inside the upper frame 1 and the lower frame 2, and then close the upper frame 1 and the lower frame 2; then detach and separate the fixed ring 82 on one side from the two-way telescopic plate 81, fix the fixed ring 82 and the two-way telescopic plate 81 on the other side to the upper frame 1, and finally fix the fixed ring 82 on one side to the two-way telescopic plate 81, and the cable is located between the two fixed rings 82;

[0054] Then, the electric push rod 72 extends to push the sliding plate 71 towards the cable. The sliding plate 71 drives the driving unit 5 and the crawling wheel 4 towards the cable. The control system adjusts the pressure between the crawling wheel 4 and the cable by controlling the telescopic movement of the electric push rod 72 according to the size of the cable, so as to adjust the pre-tightening force between the crawling wheel 4 and the cable. After the lower frame 2 and the lower frame 2 are installed and adjusted, the control system controls the driving unit 5 to work (the driving unit 5 can be a stepping motor). The driving unit 5 drives the crawling wheel 4 to rotate, so that the crawling wheel 4 drives the detection module 6 to move on the cable (the detection module 6 includes a camera) to detect the surface condition of the cable;

[0055] When the detection module 6 detects that there are protrusions and pits on the surface of the cable in the trajectory where the crawling wheel 4 is about to pass, the control system first controls the two-way telescopic plate 81 at the upper end of the upper frame 1 to contract, driving the fixing ring 82 towards the surface of the cable. When the fixing ring 82 is in close contact with the surface of the cable, the control system controls the driving unit 5 to stop working; the control system then controls the electric telescopic rod 3 to contract, driving the lower support and the fixing ring 82 at the lower end to move upward; then the two-way telescopic plate 81 at the lower end drives the fixing ring 82 towards the cable to closely adhere to the cable, and the two-way telescopic plate 81 at the upper end drives the fixing ring 82 away from the cable, and the electric telescopic rod 3 extends again to drive the upper support to move upward; when the upper support and the lower support move to the upper end of the pit or protrusion; the control system controls the crawling wheel 4 to start working again to detect the surface of the cable;

[0056] In the present invention, by setting the electric telescopic rod 3 and the fixing ring 82, when there are pits and protrusions on the trajectory where the crawling wheel 4 moves on the surface of the cable, in order to avoid the vibration of the crawling wheel 4 when passing through the protrusions and pits, resulting in an unstable effect presented by the detection device; through the cooperation between the fixing ring 82 and the electric telescopic rod 3, the crawling wheel 4 is made to avoid passing through the protrusions and pits, so that the detection device is more stable during operation, and at the same time, further damage to the surface of the cable is reduced.

[0057] As an embodiment of the present invention, as Figures 1 to 4 shown, the upper frame 1 and the lower frame 2 are triangular, and an annular outer shell 13 is sleeved outside the upper frame 1 and the lower frame 2;

[0058] As an embodiment of the present invention, as Figure 3 shown, the upper frame 1 and the lower frame 2 are arranged to deflect 60° around the cable as the center;

[0059] As an embodiment of the present invention, as Figures 2 to 4 shown, the detection module 6 is installed inside the apex angles of the upper frame 1 and the lower frame 2;

[0060] During operation, first, the upper frame 1 and the lower frame 2 are set in a triangular shape. Crawling wheels 4 are installed on all three sides of the upper frame 1 and the lower frame 2. The crawling wheels 4 on the upper frame 1 and the lower frame 2 form a stable tripod structure. An annular outer shell 13 is sleeved outside the upper frame 1 and the lower frame 2. The annular outer shell 13 is made of a soft metal material (which can be copper or aluminum), and one side on the side of the annular outer shell 13 is detachably connected. After the upper frame 1 and the lower frame 2 are installed, one side of the annular outer shell 13 is separated, the annular outer shell 13 is unfolded, then the top angles of the upper frame 1 and the lower frame 2 are aligned and fixed with the holes opened on the inner wall of the annular outer shell 13, and finally the annular outer shell 13 is closed. When there is wind at the upper end of the cable, the wind resistance coefficient of the annular outer shell 13 is smaller than the wind resistance coefficient of the triangular prism shape of the upper frame 1 and the lower frame 2, so that the resistance generated when the detection device faces the wind is smaller. Therefore, when the detection device moves to a high position of the bridge cable, it can be more stable under the condition of strong wind.

[0061] The upper frame 1 and the lower frame 2 are deflected by 60° with the cable as the center, so that the positions where the crawling wheels 4 on the upper frame 1 and the lower frame 2 are distributed are different. On the one hand, it makes the force distribution on the cable surface of the detection device more uniform. On the other hand, when the detection module 6 detects bumps and pits on the traveling track of the crawling wheel 4, only one movement of the fixing ring 82 in the up and down position is required to move the upper frame 1 or the lower frame 2 to the upper end of the bumps and pits, without moving both the upper frame 1 and the lower frame 2 to the upper end of the bumps and pits.

[0062] By installing the detection module 6 inside the top angles of the upper frame 1 and the lower frame 2, the detection module 6 can observe the conditions of each position on the cable surface more comprehensively.

[0063] The annular outer shell 13 is made of a light metal material.

[0064] During operation, the annular outer shell 13 is made of a light metal material (the light metal material can be aluminum), which reduces the mass of the detection device, so that the gravity received when the detection device moves upward is reduced, and thus the detection device moves more smoothly on the cable.

[0065] As an implementation manner of the present invention, as Figure 1 shown, a rotating groove 12 is opened on the inner wall of the annular outer shell 13, and the upper frame 1 and the lower frame 2 are rotatably connected to the rotating groove 12.

[0066] During operation, by rotatably connecting the annular outer shell 13 with the upper frame 1 and the lower frame 2, when the detection device moves to the upper end of the cable and the wind on the river surface is strong, the wind blows the annular outer shell 13. When the wind force reaches the threshold value, the wind blows the annular outer shell 13 to rotate, reducing the situation that the wind continuously acts on the detection device and causing the detection device to be unstable.

[0067] As an implementation manner of the present invention, as Figure 5 shown, an anti-slip sheet 10 is fixedly connected to the inner side of the fixing ring 82;

[0068] Strip-shaped grooves 11 are formed on the surface of the anti-slip sheet 10.

[0069] During operation, the anti-slip sheet 10 can be made of silicone or rubber with a rough surface. When the detection device needs to avoid protrusions and pits at a position with strong wind, by providing the anti-slip sheet 10, the friction between the fixing ring 82 and the cable surface is increased, so that the detection device is more stable during the avoidance process;

[0070] By forming strip-shaped grooves 11 on the surface of the anti-slip sheet 10, the roughness of the surface of the anti-slip sheet 10 is further increased, and the friction between the fixing ring 82 and the cable surface is increased, thereby further enhancing the stability of the detection device during operation.

[0071] The specific working process is as follows:

[0072] The electric push rod 72 is extended to push the sliding plate 71 to move towards the cable. The sliding plate 71 drives the driving unit 5 and the crawling wheel 4 to move towards the cable. The control system adjusts the pre-tightening force of the crawling wheel 4 according to the size of the cable. After the lower frame 2 and the lower frame 2 are installed and adjusted, the control system controls the driving unit 5 to work (the driving unit 5 can be a stepping motor). The driving unit 5 drives the crawling wheel 4 to rotate, so that the crawling wheel 4 drives the detection module 6 to move on the cable (the detection module 6 includes a camera) to detect the surface condition of the cable;

[0073] When the detection module 6 detects that there are protrusions and pits on the surface of the cable in the trajectory that the crawling wheel 4 is about to pass through, the control system first controls the two-way telescopic plate 81 at the upper end of the upper frame 1 to contract, driving the fixing ring 82 to move towards the cable surface. When the fixing ring 82 is in close contact with the cable surface, the control system controls the driving unit 5 to stop working; then the control system controls the electric telescopic rod 3 to contract, driving the lower bracket and the fixing ring 82 at the lower end to move upward; then the two-way telescopic plate 81 at the lower end drives the fixing ring 82 to move towards the cable and closely adhere to the cable, and the two-way telescopic plate 81 at the upper end drives the fixing ring 82 to disengage from the cable, and the electric telescopic rod 3 extends again to drive the upper bracket to move upward; when the upper bracket and the lower bracket move to the upper end of the pit or protrusion; the control system controls the crawling wheel 4 to start working again to detect the surface of the cable; by setting the upper frame 1 and the lower frame 2 as a triangle, the stable structure of the triangle enables the detection device to be more stable when moving to a high position of the bridge cable under the condition of strong wind; by setting the upper frame 1 and the lower frame 2 to deflect 60°, the positions where the crawling wheels 4 are distributed on the upper frame 1 and the lower frame 2 are different; on the one hand, it makes the force distribution on the cable surface of the detection device more uniform, and on the other hand, when the detection module 6 detects protrusions and pits on the trajectory of the crawling wheel 4, only one movement of the fixing ring 82 in the up and down position is required to move the upper frame 1 or the lower frame 2 to the upper end of the protrusion and pit, without moving both the upper frame 1 and the lower frame 2 to the upper end of the protrusion and pit. By installing the detection module 6 inside the apex angles of the upper frame 1 and the lower frame 2, the detection module 6 can observe the conditions of each position on the cable surface more comprehensively.

[0074] The above front, back, left, right, up, and down are based on the observer's perspective of the person. The side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0075] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the Figure 1 orientation or positional relationship shown in the accompanying drawings, and is 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 therefore should not be construed as limiting the protection scope of the present invention.

[0076] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge engineering detection device based on BIM technology, comprising: Upper frame (1), lower frame (2) and control system; It is characterized in that: the detection device further includes: Electric telescopic rod (3), the electric telescopic rod (3) is installed between the upper frame (1) and the lower frame (2); Crawler wheel (4), the crawler wheel (4) is installed inside the upper frame (1) and the lower frame (2), and the crawler wheel (4) is connected with a drive unit (5); Detection module (6), the detection module (6) is installed on the upper frame (1) and the lower frame (2); Obstacle avoidance mechanism, the obstacle avoidance mechanism is connected with the crawler wheel (4), and the obstacle avoidance mechanism is used to drive the crawler wheel (4) to contact and disengage from the surface of the cable; Auxiliary mechanism, the auxiliary mechanism is respectively installed at one end of the upper frame (1) and the lower frame (2) away from the electric telescopic rod (3), and the auxiliary mechanism is used to assist the obstacle avoidance mechanism to avoid bumps and pits on the cable; The obstacle avoidance mechanism includes: Sliding plate (71), the sliding plate (71) is slidably connected to each side of the upper frame (1) and the lower frame (2), one end face of the sliding plate (71) close to the center of the cable is fixedly connected with a drive unit (5), and the drive unit (5) is fixedly connected with the crawler wheel (4); Electric push rod (72), the extending end of the electric push rod (72) is fixedly connected to the other end face of the sliding plate (71), and the other end of the electric push rod (72) is fixedly connected to the outer walls of the upper frame (1) and the lower frame (2); The auxiliary mechanism includes: Bidirectional telescopic plate (81), one end face of the bidirectional telescopic plate (81) is detachably connected to the upper frame (1) or the lower frame (2); Fixed rings (82), two fixed rings (82) are respectively located at both ends of the bidirectional telescopic plate (81); one of the fixed rings (82) is fixedly connected to one end of the bidirectional telescopic plate (81), and the other fixed ring (82) is detachably connected to the other end of the bidirectional telescopic plate (81); The upper frame (1) and the lower frame (2) are triangular, and an annular outer shell (13) is sleeved outside the upper frame (1) and the lower frame (2); The upper frame (1) and the lower frame (2) are arranged to deflect 60° around the cable; The detection module (6) is installed inside the top angles of the upper frame (1) and the lower frame (2).

2. The bridge engineering detection device based on BIM technology according to claim 1, characterized in that: The annular outer shell (13) is made of lightweight metal material.

3. The bridge engineering detection device based on BIM technology according to claim 2, characterized in that: A rotating groove (12) is formed in the inner wall of the annular outer shell (13), and the upper frame (1) and the lower frame (2) are rotatably connected to the rotating groove (12).

4. The bridge engineering detection device based on BIM technology according to claim 1, characterized in that: An anti-slip sheet (10) is fixedly connected to the inner side of the fixed ring (82).

5. The bridge engineering detection device based on BIM technology according to claim 4, wherein: Strip-shaped grooves (11) are formed on the surface of the anti-slip sheet (10).

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