Bridge steel structure deflection detection device and detection method

Abstract

The application discloses a kind of bridge steel structure deflection detection device and detection method, related to bridge steel detection technical field, including support seat, support leg, pillar and measurement module, the surface of the support seat is fixedly connected with hydraulic telescopic rod, the surface of the support leg is fixedly connected with universal wheel, further include: be set in the surface of the hydraulic telescopic rod, to remove the dirt of bridge bottom when bridge deflection is detected cleaning device, the cleaning device includes the base fixedly connected in one end of hydraulic telescopic rod, the surface of the base is fixedly connected with motor, the output of the motor is fixedly connected with support rod, the arc surface of the support rod is fixedly connected with connecting plate, by setting cleaning device, the cleaning effect of detection device to bridge bottom is improved, the problem that the precision of detection result can be influenced by the moss dirt generated in bridge bottom is reduced, it is convenient to detect bridge steel structure deflection, further improve the practicality of detection device.

Description

Technical Field

[0001] This invention relates to the field of bridge steel testing technology, specifically to a bridge steel structure deflection testing device and testing method. Background Technology

[0002] Bridge deflection is a crucial parameter for bridge structures, directly reflecting their overall vertical stiffness and serving as a vital indicator of linear changes in bridge performance. Bridge deflection is closely related to a bridge's load-bearing capacity and its ability to withstand dynamic loads such as earthquakes. Scientific testing methods are not only essential for assessing bridge load-bearing capacity and mitigating earthquake damage, but also for accumulating practical experience to refine bridge design theories and construction techniques.

[0003] Existing technologies, such as the invention with publication number CN210037118U, disclose a bridge deflection detection device, including a measuring module, a fixing module, a mounting plate, a support rod, a support base, a rotating shaft, and support legs. The fixing module is fixedly connected to the mounting plate; the measuring module is fixedly installed inside the fixing module; the mounting plate is fixedly connected to the top of the support rod; the middle part of the support rod is threadedly connected to the support base; three mounting grooves are evenly arranged around the outer surface of the support base; three support legs are provided, and the upper ends of the three support legs are respectively fixedly connected to a rotating shaft, and the three rotating shafts are respectively interference-fitted into the through holes inside the three mounting grooves. This invention allows the mounting plate to remain parallel to the horizontal plane by adjusting the multiple support legs, thereby enabling the measuring module installed in the fixing module to achieve high measurement accuracy.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: Existing bridge steel structure deflection testing is carried out by dial gauges. Since the inspection cycle of bridges is relatively long, generally once every three years, moss and dirt inevitably accumulate on the bottom of the bridge during this period. When using dial gauges for deflection testing, the influence of moss and dirt is easily affected by the moss and dirt, resulting in low accuracy of the test results for bridge steel structure deflection. Furthermore, existing testing devices are difficult to effectively clean the moss and dirt on the bottom of the bridge during testing, thus reducing the practicality of the testing devices.

[0005] Therefore, we propose a device and method for detecting the deflection of bridge steel structures. Summary of the Invention

[0006] The purpose of this invention is to provide a bridge steel structure deflection detection device and detection method to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a bridge steel structure deflection detection device and method, comprising a support base, legs, columns, and a measuring module, wherein a hydraulic telescopic rod is fixedly connected to the surface of the support base, and casters are fixedly connected to the surface of the legs, and further comprising:

[0008] A cleaning device is installed on the surface of the hydraulic telescopic rod to remove dirt from the bottom of the bridge during bridge deflection testing. The cleaning device includes a base fixedly connected to one end of the hydraulic telescopic rod, a motor fixedly connected to the surface of the base, a support rod fixedly connected to the output end of the motor, a connecting plate, a cleaning ring and a scraper fixedly connected to the arc surface of the support rod for removing dirt from the bottom of the bridge during bridge deflection testing.

[0009] A spraying device is installed on the surface of the connecting plate for spraying cleaning agent onto the bottom of the bridge. The spraying device includes a bottle placed inside the connecting plate and a spray pipe for spraying cleaning agent onto the bottom of the bridge.

[0010] A protective device is installed on the surface of the support rod to protect the measuring module. The protective device includes an electric telescopic rod fixedly connected to the inner wall of the support rod, a protective cover and a protective plate for protecting the measuring module.

[0011] The aforementioned components achieve the following effects: By incorporating a cleaning device, the cleaning effect on the bridge underside of the testing device is improved, reducing the impact of moss and dirt on the accuracy of test results, facilitating the detection of bridge steel structure deflection, and further enhancing the practicality of the testing device. By incorporating a spraying device, the cleaning effect on moss under the bridge underside of the testing device is improved, reducing the reduced cleaning efficiency of scrapers and blades, thus improving the working efficiency of the testing device and further enhancing its effectiveness. By incorporating a protective device, the protection of the measurement module by the testing device is improved, reducing the risk of damage to the measurement module and further enhancing the working performance of the testing device.

[0012] Preferably, the cleaning device further includes a rotating rod, which is rotatably connected to a connecting plate. Two sliders are slidably connected to the inner wall of the rotating rod. A sliding rod is fixedly connected to the side of the two sliders that are close to each other. The cleaning ring is fixedly connected to the sliding rod, and the scraper is fixedly connected to the cleaning ring.

[0013] The aforementioned components achieve the following effect: When detecting the deflection of a bridge steel structure, the detection device is first moved to the detection position at the bottom of the bridge using the casters. At this time, the motor inside the base is started, and the motor drives the connecting plate on the support rod to rotate clockwise. The connecting plate drives the sliding rod on the rotating rod to rotate. At this time, the cleaning ring and scraper will rotate under the action of the sliding rod. Then, the hydraulic telescopic rod is used to move the cleaning ring to the bottom of the bridge, which facilitates the cleaning ring and scraper to remove moss and dirt from the bottom of the bridge, reducing the problem of moss and dirt affecting the detection effect.

[0014] Preferably, a spring is fixedly connected to the inner wall of the rotating rod, and one end of the spring is fixedly connected to the sliding rod.

[0015] The effect achieved by the above components is as follows: when the cleaning ring encounters the curved or inclined part of the bridge, the cleaning ring will be squeezed by the force and slide into the rotating rod. The spring force can push the cleaning ring on the sliding rod to keep it in close contact with the bottom of the bridge. The slider can effectively reduce the problem of the sliding rod sliding out of the rotating rod under the action of the spring force, thereby improving the cleaning effect of the scraper on the bottom of the bridge.

[0016] Preferably, a plurality of scraper blades are fixedly connected to the surface of the cleaning ring, and the scraper blades are distributed in an inclined manner.

[0017] The effect achieved by the above components is that the scraper on the cleaning ring can clean the bridge parts with a large inclination or curvature, further improving the detection device's effect on removing moss from the bottom of the bridge.

[0018] Preferably, a toothed ring is fixedly connected to the arc surface of the support rod, and a gear is fixedly connected to one end of the rotating rod, with the toothed ring meshing with the tooth surface of the gear.

[0019] The aforementioned components achieve the following effects: the gear ring rotates synchronously with the support rod, and the gear ring, in conjunction with the gear, drives the rotating rod to rotate counterclockwise. The rotating rod then drives the scraper and scraper plate on the sliding rod to rotate. At this point, the rotation direction of the rotating rod is opposite to that of the connecting plate, thereby improving the cleaning effect of the scraper and scraper plate on moss and dirt. The universal wheels then move the support base at the bottom of the bridge, allowing the moss and dirt on the bridge parts that need to be inspected to be removed, facilitating the inspection work of the inspection device. The inspection device is then placed stably by the outriggers and supports, and the measuring module is moved to the inspection position at the bottom of the bridge using the hydraulic telescopic rod, completing the bridge inspection work.

[0020] Preferably, the spraying device further includes a nozzle, which is fixedly connected to a spray pipe, and the spray pipe is fixedly connected to a bottle. A fixing ring is fixedly connected to the surface of the bottle. A circular hole is opened on the surface of the connecting plate. The fixing ring is threadedly connected to the circular hole on the surface of the connecting plate. The bottle is filled with detergent. The bottle has a folding structure. A first inclined block is fixedly connected to the lower surface of the bottle. A second inclined block is fixedly connected to the arc surface of the rotating rod. The inclined surfaces of the first and second inclined blocks are matched.

[0021] The aforementioned components achieve the following effects: when cleaning agent is poured into the bottle, it is placed inside the connecting plate. Rotating the bottle causes the fixing ring to contact the connecting plate, thus facilitating the fixation of the bottle and reducing the risk of it shaking and falling. When the rotating rod rotates, the second inclined block contacts and collides with the first inclined block. The impact force on the bottle compresses the cleaning agent inside, which is then sprayed through the nozzle and spray head onto the bottom of the bridge, facilitating the removal of moss and dirt from the bridge's underside.

[0022] Preferably, the surface of the first inclined block is rotatably connected with ball bearings, which are spherical in shape.

[0023] The effect achieved by the above components is that the ball bearings can effectively improve the sliding effect between the first and second inclined blocks, and reduce the problem of jamming between the first and second inclined blocks after the first inclined block is hit.

[0024] Preferably, the protective device further includes a base plate, which is fixedly connected to an electric telescopic rod, and the protective cover is fixedly connected to a support rod. The inner wall of the protective cover is slidably connected with four blocks, which are arranged in pairs. The protective plate is fixedly connected to the blocks, and a first inclined rod is fixedly connected to the surface of the protective plate. A second inclined rod is fixedly connected to the surface of the base plate, and the inclined surfaces of the first and second inclined rods are matched.

[0025] The aforementioned components achieve the following effects: After cleaning the bottom of the bridge, the measuring module on the base plate can be moved towards the bridge using an electric telescopic rod. At this time, the second inclined rod on the base plate will contact the first inclined rod on the protective plate. The force on the first inclined rod will cause the protective plate to move away from the measuring module, thus facilitating the measuring module's inspection of the bridge's steel structure. After the inspection is completed, the measuring module is moved away from the bridge using the electric telescopic rod. The base plate will then move the measuring module into the protective cover. At this time, the protective cover and the protective plate form a closed structure, improving the protection of the measuring module and reducing the risk of damage to the measuring module from falling debris during bridge bottom cleaning.

[0026] Preferably, the two protective plates are fixedly connected to each other on their adjacent sides by a connecting rope, which is an elastic rope.

[0027] The effect achieved by the above components is that the protective plates will move closer and fit together under the tension of the connecting rope, thus facilitating the formation of a closed structure between the protective plates and the protective cover to protect the measuring module.

[0028] Methods for detecting the deflection of bridge steel structures include:

[0029] S1: First, move the testing device to the testing position of the bridge steel structure. At this time, use the scraper and scraper in the cleaning device to remove the moss and dirt at the bottom of the bridge.

[0030] S2: When the scraper and blades are cleaning the bottom of the bridge, the spray bottle in the spraying device can spray the cleaning agent onto the bottom of the bridge;

[0031] S3: The protective cover and protective plate in the protective device form a closed structure, which can protect the measuring module when cleaning at the bottom of the bridge.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] 1. By incorporating a cleaning device, this invention improves the cleaning effect of the detection device on the bottom of the bridge, reduces the problem of moss and dirt on the bottom of the bridge affecting the accuracy of the detection results, facilitates the detection of the deflection of the bridge steel structure, and further enhances the practicality of the detection device.

[0034] 2. By incorporating a spraying device, this invention improves the cleaning effect of the detection device on the moss at the bottom of the bridge, reduces the cleaning efficiency of the scraper and scraper blade, thus reducing the impact on the working efficiency of the detection device and further improving the effectiveness of the detection device.

[0035] 3. By incorporating a protective device, this invention improves the protection of the measurement module by the detection device, reduces the risk of damage to the measurement module, and further enhances the working efficiency of the detection device. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of the present invention from another angle;

[0038] Figure 3 This is a schematic diagram of the cleaning device in this invention;

[0039] Figure 4 This is a cross-sectional structural diagram of the rotating rod in this invention;

[0040] Figure 5 In this invention Figure 4 Enlarged view of point A;

[0041] Figure 6 This is a schematic diagram of the disassembled structure of the spraying device in this invention;

[0042] Figure 7 In this invention Figure 6 Enlarged view of point B;

[0043] Figure 8 This is a schematic diagram of the disassembly structure of the protective device in this invention;

[0044] Figure 9 This is a partial structural schematic diagram of the protective device in this invention;

[0045] Figure 10 This is a cross-sectional structural diagram of the protective device in this invention.

[0046] In the diagram: 1-Support base; 2-Outrigger; 3-Support column; 4-Wheel; 5-Hydraulic telescopic rod; 6-Measuring module; 7-Cleaning device; 701-Base; 702-Motor; 703-Support rod; 704-Rotating rod; 705-Slider; 706-Slide rod; 707-Cleaning ring; 708-Scraper; 709-Scraper blade; 710-Spring; 711-Gear ring; 712-Gear; 713-Connecting plate; 8-Spraying device; 81-Bag bottle; 82-Spray pipe; 83-Spray head; 84-Fixing ring; 85-First inclined block; 86-Second inclined block; 87-Ball bearing; 9-Protective device; 91-Electric telescopic rod; 92-Base plate; 93-Protective cover; 94-Protective plate; 95-First inclined rod; 96-Connecting rope; 97-Stop block; 98-Second inclined rod. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Please see Figure 1-10This invention provides a technical solution: a bridge steel structure deflection detection device and method, including a support base 1, legs 2, a support column 3, and a measuring module 6. A hydraulic telescopic rod 5 is fixedly connected to the surface of the support base 1, and casters 4 are fixedly connected to the surface of the legs 2. The device also includes a cleaning device 7 disposed on the surface of the hydraulic telescopic rod 5 for removing dirt from the bottom of the bridge during bridge deflection detection. The cleaning device 7 includes a base 701 fixedly connected to one end of the hydraulic telescopic rod 5, a motor 702 fixedly connected to the surface of the base 701, and a support rod 703 fixedly connected to the output end of the motor 702. The support rod 703 has a circular... The device includes a connecting plate 713, a cleaning ring 707 for removing dirt from the bottom of the bridge during bridge deflection testing, and a scraper 708. A spraying device 8, installed on the surface of the connecting plate 713, is used to spray cleaning agent onto the bottom of the bridge. The spraying device 8 includes a bottle 81 placed inside the connecting plate 713 and a spray pipe 82 for spraying cleaning agent onto the bottom of the bridge. A protective device 9, installed on the surface of the support rod 703, is used to protect the measuring module 6. The protective device 9 includes an electric telescopic rod 91 fixedly connected to the inner wall of the support rod 703, a protective cover 93, and a protective plate 94 for protecting the measuring module 6. By incorporating the cleaning device 7, the cleaning effect on the bottom of the bridge by the testing device is improved, reducing the impact of moss and dirt on the accuracy of the test results, facilitating the testing of bridge steel structure deflection, and further enhancing the practicality of the testing device. By installing the spraying device 8, the cleaning effect of the detection device on the moss at the bottom of the bridge is improved, reducing the decrease in cleaning efficiency of the scraper blades 709 and 708, which would affect the working efficiency of the detection device, and further improving the effectiveness of the detection device. By installing the protective device 9, the protection effect of the detection device on the measuring module 6 is improved, reducing the problem of damage to the measuring module 6, and further improving the working effect of the detection device.

[0049] The following section will describe in detail the specific setup and function of its cleaning device 7, spraying device 8, and protective device 9.

[0050] like Figures 1-6As shown, the cleaning device 7 also includes a rotating rod 704, which is rotatably connected to the connecting plate 713. Two sliders 705 are slidably connected to the inner wall of the rotating rod 704. A sliding rod 706 is fixedly connected to the side of the two sliders 705 that are close to each other. A cleaning ring 707 is fixedly connected to the sliding rod 706, and a scraper 708 is fixedly connected to the cleaning ring 707. When testing the deflection of the bridge steel structure, the testing device is first moved to the testing position at the bottom of the bridge using the casters 4. Then, the motor 702 inside the base 701 is activated. The motor 702 drives the connecting plate 713 on the support rod 703 to rotate clockwise. The connecting plate 713 then drives the sliding rod 706 on the rotating rod 704 to rotate. At this time, the cleaning ring 707 and the scraper 708 rotate under the influence of the sliding rod 706. The hydraulic telescopic rod 5 then moves the cleaning ring 707 to the bottom of the bridge, facilitating the removal of moss and dirt from the bottom of the bridge by the cleaning ring 707 and the scraper 708, reducing the impact of moss and dirt on the testing results. A spring 710 is fixedly connected to the inner wall of the rotating rod 704, and one end of the spring 710 is fixedly connected to the sliding rod 706. When the cleaning ring 707 encounters an arc or inclined section of the bridge, the force applied to the cleaning ring 707 compresses the slide rod 706, causing it to slide into the rotating rod 704. The elastic force of the spring 710 pushes the cleaning ring 707 on the slide rod 706 to maintain a tight fit with the bottom of the bridge. The slider 705 effectively reduces the problem of the slide rod 706 slipping out of the rotating rod 704 under the elastic force of the spring 710, thereby improving the cleaning effect of the scraper 708 on the bottom of the bridge. Several scraper blades 709 are fixedly connected to the surface of the cleaning ring 707, and the scraper blades 709 are distributed at an angle. The scraper blades 709 on the cleaning ring 707 can clean inclined or highly curved sections of the bridge, further improving the detection device's effect on removing moss from the bottom of the bridge. A toothed ring 711 is fixedly connected to the arc surface of the support rod 703, and a gear 712 is fixedly connected to one end of the rotating rod 704. The toothed ring 711 and the gear 712 mesh with each other. At this time, the gear ring 711 will rotate synchronously with the support rod 703. The gear ring 711 and the gear 712 will drive the rotating rod 704 to rotate counterclockwise. The rotating rod 704 will drive the scraper 709 and scraper 708 on the slide rod 706 to rotate. At this time, the rotation direction of the rotating rod 704 is opposite to that of the connecting plate 713, thereby improving the cleaning effect of the scraper 708 and scraper 709 on moss and dirt. At this time, the universal wheel 4 drives the support base 1 to move at the bottom of the bridge, which can remove the moss and dirt on the bridge parts that need to be inspected, making it convenient for the inspection device to inspect the bridge. At this time, the inspection device is placed stably by the support leg 2 and the support column 3. The measuring module 6 is moved to the inspection position at the bottom of the bridge by the hydraulic telescopic rod 5 to complete the inspection of the bridge.

[0051] like Figure 3 and Figure 6 as well as Figure 7As shown, the spraying device 8 also includes a nozzle 83, which is fixedly connected to the spray pipe 82. The spray pipe 82 is fixedly connected to the bottle 81. A fixing ring 84 is fixedly connected to the surface of the bottle 81. A circular hole is opened on the surface of the connecting plate 713. The fixing ring 84 is threadedly connected to the circular hole on the surface of the connecting plate 713. The inside of the bottle 81 is filled with cleaning agent. The bottle 81 has a folding structure. A first inclined block 85 is fixedly connected to the lower surface of the bottle 81. A second inclined block 86 is fixedly connected to the arc surface of the rotating rod 704. The inclined surfaces of the first inclined block 85 and the second inclined block 86 are matched. Cleaning agent is poured into bottle 81, which is then placed into connecting plate 713. Rotating bottle 81 causes the fixing ring 84 to contact the connecting plate 713, facilitating its fixation and reducing the risk of it shaking and falling. When the rotating rod 704 rotates, the second inclined block 86 contacts and collides with the first inclined block 85. The impact force compresses the cleaning agent inside bottle 81, which is then sprayed through nozzle 82 and spray head 83 onto the bottom of the bridge, facilitating the cleaning device 7's removal of moss and dirt. A ball bearing 87, a spherical structure, is rotatably connected to the surface of the first inclined block 85. The ball bearing 87 effectively improves the sliding effect between the first inclined block 85 and the second inclined block 86, reducing the risk of jamming after a collision.

[0052] like Figure 8 and Figure 9 as well as Figure 10As shown, the protective device 9 also includes a base plate 92, which is fixedly connected to the electric telescopic rod 91. The protective cover 93 is fixedly connected to the support rod 703. Four stops 97 are slidably connected to the inner wall of the protective cover 93. The four stops 97 are in pairs. The protective plate 94 is fixedly connected to the stops 97. A first inclined rod 95 is fixedly connected to the surface of the protective plate 94. A second inclined rod 98 is fixedly connected to the surface of the base plate 92. The inclined surfaces of the first inclined rod 95 and the second inclined rod 98 are matched. After cleaning the bottom of the bridge, the measuring module 6 on the base plate 92 can be moved towards the bridge using the electric telescopic rod 91. At this time, the second inclined rod 98 on the base plate 92 will contact the first inclined rod 95 on the protective plate 94. The force on the first inclined rod 95 will drive the protective plate 94 to move away from the measuring module 6, thus facilitating the measuring module 6 to inspect the bridge steel structure. After the inspection is completed, the measuring module 6 is moved away from the bridge by the electric telescopic rod 91. At this time, the base plate 92 will drive the measuring module 6 into the protective cover 93. The protective cover 93 and the protective plate 94 form a closed structure, which improves the protection of the inspection module and reduces the problem of debris falling and damaging the measuring module 6 during the cleaning of the bottom of the bridge. The two protective plates 94 are fixedly connected to the side that is close to each other by a connecting rope 96, which is an elastic rope. The protective plates 94 will move closer and fit together under the tension of the connecting rope 96, thus facilitating the formation of a closed structure between the protective plates 94 and the protective cover 93 to protect the measuring module 6.

[0053] Methods for detecting the deflection of bridge steel structures include:

[0054] S1: First, move the detection device to the detection position of the bridge steel structure. At this time, use the scraper 708 and scraper 709 in the cleaning device 7 to remove the moss and dirt at the bottom of the bridge.

[0055] S2: When the scraper 708 and scraper blade 709 are cleaning the bottom of the bridge, the bottle 81 in the spraying device 8 can spray the cleaning agent onto the bottom of the bridge.

[0056] S3: The protective cover 93 and protective plate 94 in the protective device 9 form a closed structure, which can protect the measuring module 6 when cleaning at the bottom of the bridge.

[0057] Working Principle: When detecting the deflection of a bridge steel structure, the detection device is first moved to the detection position at the bottom of the bridge using the casters 4. Then, the motor 702 inside the base 701 is activated. The motor 702 drives the connecting plate 713 on the support rod 703 to rotate clockwise. The connecting plate 713 then drives the sliding rod 706 on the rotating rod 704 to rotate. At this time, the cleaning ring 707 and the scraper 708 rotate under the influence of the sliding rod 706. The hydraulic telescopic rod 5 then moves the cleaning ring 707 to the bottom of the bridge, facilitating the cleaning ring 707 and the scraper 708 to... The cleaning ring 707 removes moss and dirt from the bottom of the bridge, reducing the impact of moss and dirt on the testing results. When the cleaning ring 707 encounters the curved or inclined parts of the bridge, the force applied to the cleaning ring 707 compresses the slide rod 706 and slides it into the rotating rod 704. The elasticity of the spring 710 pushes the cleaning ring 707 on the slide rod 706 to maintain a tight fit with the bottom of the bridge. The slider 705 effectively reduces the problem of the slide rod 706 slipping out of the rotating rod 704 under the elasticity of the spring 710, thereby improving the cleaning effect of the scraper 708 on the bottom of the bridge. At this time, the scraper blade on the cleaning ring 707... 709 can clean inclined or curved sections of bridges, further improving the detection device's ability to remove moss from the bridge's underside. At this time, the gear ring 711 rotates synchronously with the support rod 703. The gear ring 711, in conjunction with the gear 712, drives the rotating rod 704 to rotate counter-clockwise. The rotating rod 704 then drives the scraper 709 and scraper plate 708 on the sliding rod 706 to rotate. The rotation direction of the rotating rod 704 is opposite to that of the connecting plate 713, thus improving the cleaning effect of the scraper plate 708 and scraper 709 on moss and dirt. Meanwhile, the universal wheel 4 drives the support base 1 on the bridge... The bottom can be moved to remove moss and dirt from the bridge sections to be inspected, facilitating the inspection of the bridge. At this time, the inspection device is placed stably by the support legs 2 and the support column 3. The measuring module 6 is moved to the inspection position at the bottom of the bridge using the hydraulic telescopic rod 5 to complete the inspection of the bridge. By setting up the cleaning device 7, the cleaning effect of the inspection device on the bottom of the bridge is improved, reducing the problem that moss and dirt generated at the bottom of the bridge will affect the accuracy of the inspection results. This facilitates the inspection of the deflection of the bridge steel structure and further improves the practicality of the inspection device.

[0058] Pour cleaning agent into bottle 81, then place bottle 81 into connecting plate 713. Rotate bottle 81, causing the fixing ring 84 to contact the connecting plate 713, thus facilitating the fixation of bottle 81 and reducing the risk of it shaking and falling. When the rotating rod 704 rotates, the second inclined block 86 will contact and collide with the first inclined block 85. The collision force will compress the cleaning agent inside bottle 81, which will then be sprayed through nozzle 82 and spray head 83. The spray is applied to the bottom of the bridge, making it easier for the cleaning device 7 to remove moss and dirt from the bottom of the bridge. The ball bearing 87 effectively improves the sliding effect between the first inclined block 85 and the second inclined block 86, reducing the problem of jamming between the first inclined block 85 and the second inclined block 86 after being hit. By setting up the spraying device 8, the cleaning effect of the detection device on the moss at the bottom of the bridge is improved, the cleaning efficiency of the scraper 709 and scraper 708 is reduced, the working efficiency of the detection device is affected, and the use effect of the detection device is further improved.

[0059] After the bottom of the bridge is cleaned, the measuring module 6 on the base plate 92 can be moved towards the bridge using the electric telescopic rod 91. At this time, the second inclined rod 98 on the base plate 92 will contact the first inclined rod 95 on the protective plate 94. The force on the first inclined rod 95 will drive the protective plate 94 to move away from the measuring module 6, thus facilitating the measuring module 6 to inspect the bridge steel structure. After the inspection is completed, the measuring module 6 is moved away from the bridge by the electric telescopic rod 91. At this time, the base plate 92 will drive the measuring module 6 into the protective cover 93. The protective plates 94 will approach and fit together under the tension of the connecting rope 96. At this time, the protective cover 93 and the protective plate 94 form a closed structure, which improves the protection of the inspection module and reduces the problem of debris falling and damaging the measuring module 6 when cleaning the bottom of the bridge. By setting up the protective device 9, the protection of the measuring module 6 by the inspection device is improved, the problem of damage to the measuring module 6 is reduced, and the working effect of the inspection device is further improved.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge steel structure deflection detection device, comprising a support base (1), legs (2), a support column (3), and a measurement module (6), characterized in that: The support base (1) is fixedly connected to a hydraulic telescopic rod (5), and the support leg (2) is fixedly connected to a caster wheel (4). The system also includes a cleaning device (7) disposed on the surface of the hydraulic telescopic rod (5) for removing dirt from the bottom of the bridge during bridge deflection testing. The cleaning device (7) includes a base (701) fixedly connected to one end of the hydraulic telescopic rod (5). A motor (702) is fixedly connected to the surface of the base (701). A support rod (703) is fixedly connected to the output end of the motor (702). A connecting plate (713) is fixedly connected to the arc surface of the support rod (703) for cleaning the dirt from the bottom of the bridge during bridge deflection testing. A cleaning ring (707) and a scraper (708) for removing dirt from the bottom of the bridge; a spraying device (8) disposed on the surface of the connecting plate (713) for spraying cleaning agent onto the bottom of the bridge, the spraying device (8) including a bottle (81) placed inside the connecting plate (713) and a nozzle (82) for spraying cleaning agent onto the bottom of the bridge; a protective device (9) disposed on the surface of the support rod (703) for protecting the measuring module (6), the protective device (9) including an electric telescopic rod (91) fixedly connected to the inner wall of the support rod (703), a protective cover (93) and a protective plate (94) for protecting the measuring module (6); The cleaning device (7) also includes a rotating rod (704), which is rotatably connected to a connecting plate (713). Two sliders (705) are slidably connected to the inner wall of the rotating rod (704). A sliding rod (706) is fixedly connected to the side of the two sliders (705) that are close to each other. The cleaning ring (707) is fixedly connected to the sliding rod (706). The scraper (708) is fixedly connected to the cleaning ring (707). The surface of the cleaning ring (707) is fixedly connected with a plurality of scraper blades (709), which are distributed in an inclined manner; A toothed ring (711) is fixedly connected to the arc surface of the support rod (703), and a gear (712) is fixedly connected to one end of the rotating rod (704). The toothed ring (711) meshes with the tooth surface of the gear (712). The spraying device (8) also includes a nozzle (83), which is fixedly connected to a spray pipe (82). The spray pipe (82) is fixedly connected to a bottle (81). A fixing ring (84) is fixedly connected to the surface of the bottle (81). A circular hole is opened on the surface of the connecting plate (713). The fixing ring (84) is threadedly connected to the circular hole on the surface of the connecting plate (713). The inside of the bottle (81) is filled with cleaning agent. The bottle (81) has a folding structure. A first inclined block (85) is fixedly connected to the lower surface of the bottle (81). A second inclined block (86) is fixedly connected to the arc surface of the rotating rod (704). The inclined surfaces of the first inclined block (85) and the second inclined block (86) are matched. The protective device (9) also includes a base plate (92), which is fixedly connected to an electric telescopic rod (91). The protective cover (93) is fixedly connected to a support rod (703). The inner wall of the protective cover (93) is slidably connected to four blocks (97), which are arranged in pairs. The protective plate (94) is fixedly connected to the blocks (97). The surface of the protective plate (94) is fixedly connected to a first inclined rod (95), and the surface of the base plate (92) is fixedly connected to a second inclined rod (98). The inclined surfaces of the first inclined rod (95) and the second inclined rod (98) are matched.

2. The bridge steel structure deflection detection device according to claim 1, characterized in that: A spring (710) is fixedly connected to the inner wall of the rotating rod (704), and one end of the spring (710) is fixedly connected to the sliding rod (706).

3. The bridge steel structure deflection detection device according to claim 1, characterized in that: The surface of the first inclined block (85) is rotatably connected with a ball (87), which is a spherical structure.

4. The bridge steel structure deflection detection device according to claim 1, characterized in that: The two protective plates (94) are fixedly connected to each other on their adjacent sides by a connecting rope (96), which is an elastic rope.

5. A detection method for the bridge steel structure deflection detection device according to any one of claims 1-4, characterized in that: S1: First, move the detection device to the detection position of the bridge steel structure. At this time, use the scraper (708) and scraper (709) in the cleaning device (7) to remove the moss and dirt at the bottom of the bridge. S2: When the scraper (708) and scraper (709) clean the bottom of the bridge, the bottle (81) in the spraying device (8) can spray the cleaning agent onto the bottom of the bridge; S3: The protective cover (93) and protective plate (94) in the protective device (9) form a closed structure, which can protect the measuring module (6) when cleaning at the bottom of the bridge.

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