An underwater detection device for bridge pile foundation capable of automatically lifting and lowering

Abstract

The invention relates to the technical field of detection devices, and discloses an underwater detection device for bridge pile foundations that can be automatically lifted and lowered, comprising a cleaning mechanism, which also includes a bridge pile foundation. A fixing ring is arranged on the outer wall of the bridge pile foundation, a hydraulic cylinder is fixedly penetrated through the outer wall of the fixing ring, a main body is fixedly connected to the output end of the hydraulic cylinder, and the hydraulic cylinder is started, and the hydraulic cylinder drives the main body to move downward. After the main body moves downward, it drives an ultrasonic detector to penetrate into the water to detect the bridge pile foundation. The outer wall of the bridge pile foundation is in the water for a long time, and impurities or silt will be adsorbed on the outer wall of the bridge pile foundation. When the main body moves downward, it drives a scraper to move downward to scrape off the impurities and silt adsorbed on the outer wall of the bridge pile foundation. After the adsorbed impurities and silt are scraped off, the influence of the adsorbed impurities and silt on the ultrasonic detector during detection can be reduced, thereby improving the accuracy of the ultrasonic detector in detecting the bridge pile foundation.

Description

Technical Field

[0001] The invention relates to the technical field of detection devices, and in particular to an underwater detection device for bridge pile foundations which can be automatically lifted and lowered. Background Art

[0002] The bridge pile foundation is the lowest part of the bridge structure that is in direct contact with the foundation and is an important component of the bridge's lower structure. The bridge pile foundation is placed underwater and is eroded by water flow all year round. After a period of time, the eroded bridge pile foundation needs to be maintained and repaired, so it is necessary to detect the erosion of the bridge piers.

[0003] The bridge pile foundation is in water for a long time, and impurities or silt will be adsorbed on the outer wall of the bridge pile foundation. The adsorbed impurities or silt will interfere with the propagation path of the ultrasonic wave, thereby affecting the ultrasonic detector's accurate judgment of the internal structure and defects of the bridge pile foundation. To solve the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an underwater detection device for bridge pile foundation that can be automatically lifted and lowered, comprising a cleaning mechanism, the cleaning mechanism also comprising a bridge pile foundation, a fixing ring is arranged on the outer wall of the bridge pile foundation, a hydraulic cylinder is fixedly penetrated through the outer wall of the fixing ring, a main body is fixedly connected to the output end of the hydraulic cylinder, and an ultrasonic detector is fixedly connected to the bottom inner wall of the main body;

[0005] The anti-adsorption mechanism has arc-shaped plates fixedly connected to the left and right outer walls of the main body, and guide blocks fixedly connected to the bottoms of the two arc-shaped plates;

[0006] The stabilizing mechanism has a plurality of connection blocks fixedly connected to the top inner wall of the main body, and movable grooves are respectively provided on the outer walls of the plurality of connection blocks.

[0007] Preferably, the cleaning mechanism also includes a fixed rod fixedly connected to the top of the main body, and one end of the fixed rod away from the main body is fixedly connected to a scraper 1, the outer wall of the scraper 1 contacts the outer wall of the bridge pile foundation, and two scrapers 2 are slidably connected to the outer wall of the main body. When the bridge pile foundation needs to be inspected, the fixing ring is first put on the outer wall of the bridge pile foundation, and then the fixing ring is fixed to the outer wall of the bridge pile foundation with bolts, and then the hydraulic cylinder is started, and the hydraulic cylinder drives the main body to move downward. After the main body moves downward, it drives the ultrasonic detector to penetrate into the water to inspect the bridge pile foundation. The outer wall of the bridge pile foundation is in water for a long time, and impurities or silt will be adsorbed on the outer wall of the bridge pile foundation. When the main body moves downward, it drives the scraper 1 to move downward to scrape off the impurities and silt adsorbed on the outer wall of the bridge pile foundation. After scraping off the adsorbed impurities and silt, the influence of the adsorbed impurities and silt on the ultrasonic detector during detection can be reduced, thereby improving the accuracy of the ultrasonic detector in detecting the bridge pile foundation.

[0008] Preferably, the cleaning mechanism also includes U-shaped rods respectively fixedly connected to the sides of the two scrapers away from each other, the ends of the two U-shaped rods away from the scrapers extend into the main body and are slidably connected to the main body, the ends of the two U-shaped rods away from the scrapers are respectively fixedly connected to connecting plates, and the sides of the two connecting plates close to each other are fixedly connected to tension springs. After the two connecting plates are close to each other, the two U-shaped rods drive the two scrapers close to each other, thereby scraping off impurities and silt adsorbed on the outer wall of the main body. This can reduce the interference of impurities and silt to the ultrasonic detector, enable the ultrasonic wave to more accurately penetrate the bridge pile foundation and reflect back, thereby improving the accuracy of detection.

[0009] Preferably, the cleaning mechanism also includes connecting strips rotatably connected to the outer walls of the two connecting plates, the two connecting strips are rotatably connected to a strip plate on one side away from the connecting plate, and connecting rods are fixedly connected to the left and right outer walls of the strip plate, respectively. When the inclined block moves outward, the inclined block pulls the strip plate outward through the connecting rod, and after the strip plate moves outward, the two connecting strips are forced to drive the two connecting plates closer to each other.

[0010] Preferably, the anti-adsorption mechanism also includes a sliding rod 1 rotatably connected to the outer wall of the guide block, the left end of the sliding rod 1 extends into the main body and is rotatably connected to the main body, and the right end of the sliding rod 1 is fixedly connected to an impeller. When the main body descends into the water, the water at this time is in a flowing state, and the flowing water has a certain impact force. The flowing water is in direct contact with the main body, which will cause the main body and the ultrasonic detector to shake. By providing an arc plate, the arc plate has a streamlined shape. The streamlined design of the arc plate can make the water flow more smoothly over the surface of the main body, reducing the friction resistance between the water flow and the main body. Reducing the water flow resistance can reduce the interference of the water flow on the ultrasonic detector when the main body contacts the water, reduce the shaking and deviation of the main body and the ultrasonic detector during detection in water, thereby improving the accuracy and reliability of the detection. When the water flow hits the arc plate, the guide block at the bottom can help disperse the water flow pressure, so that the arc plate can withstand a larger water flow impact, further improving the stability of the device during bridge pile foundation detection.

[0011] Preferably, the anti-adsorption mechanism also includes a circular plate fixedly connected to the end of the sliding rod away from the impeller, a circular rod is fixedly connected to the outer wall of the circular plate, and a spherical block is fixedly connected to the end of the circular rod away from the circular plate. When the flowing water contacts the impeller, the impeller will rotate, and the rotation of the impeller will drive the sliding rod to rotate, and the rotation of the impeller will drive the circular plate to rotate. The circular plate will also drive the circular rod to rotate synchronously when it rotates, and the rotation of the circular rod will drive the spherical block to contact the inclined surface of the inclined surface block.

[0012] Preferably, the anti-adsorption mechanism also includes a sliding rod 2 slidably connected to the side wall of the main body, one end of the sliding rod 2 close to the circular plate extends into the main body and is slidably connected to the main body, the extended part of the sliding rod 2 is fixedly connected with an inclined surface block, and the side of the inclined surface block and the main body close to each other is fixedly connected with an extrusion spring, and the end of the sliding rod 2 away from the inclined surface block is fixedly connected with a stirring plate. After the inclined surface block moves outward, it drives the sliding rod 2 to slide outward, and when the sliding rod 2 slides outward, it drives the stirring plate to move outward. At this time, an extrusion force is applied to the extrusion spring. When the spherical block no longer contacts the inclined surface block, the extrusion force exerted on the extrusion spring is released, driving the stirring plate to reset. During the movement, the stirring plate can disturb the water around the main body, thereby preventing the floating impurities in the water from staying outside the device when the device is stopped for detection, which will hinder the penetration of ultrasonic waves and affect the detection of the bridge pile foundation by the ultrasonic detector. By disturbing the surrounding water by the stirring plate, floating objects can be prevented from approaching the device, ensuring that the ultrasonic wave can smoothly penetrate the water body and accurately detect the structure and condition of the pile foundation.

[0013] Preferably, the stabilizing mechanism further comprises movable rings rotatably connected to the plurality of movable grooves respectively, the bottoms of the plurality of movable rings are respectively fixedly connected to rectangular plates, the sides of the plurality of rectangular plates away from the movable rings are respectively fixedly connected to pull ropes, and the ends of the plurality of pull ropes away from the rectangular plates are fixedly connected to stabilizing blocks. When the water flow contacts the arc plate, the main body and the ultrasonic detector are impacted by the water flow and are still shaken. When the water flow impacts the main body, by arranging the movable ring, the rectangular plate, the pull rope and the stabilizing block in the main body, when the main body is impacted by the water flow, the movable ring will be shaken according to the direction and strength of the water flow. Generate corresponding movement, the movement of the movable ring can drive the rectangular plate and the pull rope to move, and the pull rope can pull the stabilizing block to move after moving. The stabilizing block has a large inertia, and its movement direction is opposite to the shaking direction of the main body, thereby generating a reverse force on the main body to offset part of the shaking energy, thereby reducing the shaking amplitude of the main body. When the shaking amplitude of the main body decreases, the ultrasonic detector can more accurately align with the bridge pile foundation for detection, which helps to ensure that the ultrasonic emission and receiving paths are more stable, reduce signal interference and errors caused by shaking, and thus improve the accuracy of the detection results.

[0014] The present invention has the following beneficial effects:

[0015] When the bridge pile foundation needs to be inspected, the present invention firstly sleeves the fixing ring on the outer wall of the bridge pile foundation, and then uses bolts to fix the fixing ring on the outer wall of the bridge pile foundation, and then starts the hydraulic cylinder, the hydraulic cylinder drives the main body to move downward, and after the main body moves downward, it drives the ultrasonic detector to go deep into the water to inspect the bridge pile foundation. The outer wall of the bridge pile foundation is in the water for a long time, and impurities or silt will be adsorbed on the outer wall of the bridge pile foundation. When the main body moves downward, it drives the scraper to move downward to scrape off the impurities and silt adsorbed on the outer wall of the bridge pile foundation. After the adsorbed impurities and silt are scraped off, the influence of the adsorbed impurities and silt on the ultrasonic detector during detection can be reduced, thereby improving the ultrasonic detection. The detector improves the accuracy of bridge pile foundation detection. After the scraper 1 scrapes away the impurities and silt, the impurities and silt will diffuse in the water and may be adsorbed on the outer wall of the main body again. By utilizing the force of the water flow, when the inclined block moves outward, the inclined block pulls the strip plate outward through the connecting rod. After the strip plate moves outward, it forces the two connecting strips to drive the two connecting plates closer to each other. After the two connecting plates are close to each other, the two scrapers 2 are driven closer to each other through the two U-shaped rods, thereby scraping away the impurities and silt adsorbed on the outer wall of the main body. This can reduce the interference of impurities and silt to the ultrasonic detector, enable the ultrasonic wave to penetrate the bridge pile foundation more accurately and reflect back, and improve the accuracy of detection.

[0016] When the main body of the present invention descends into the water, the water at this time is in a flowing state. The flowing water has a certain impact force. The flowing water is in direct contact with the main body, which will cause the main body and the ultrasonic detector to shake. By providing an arc plate, the shape of the arc plate is streamlined. The streamlined design of the arc plate can make the water flow more smoothly over the surface of the main body, reduce the friction resistance between the water flow and the main body, and reduce the water flow resistance. When the main body is in contact with water, the interference of the water flow on the ultrasonic detector is reduced, and the shaking and deviation of the main body and the ultrasonic detector during detection in water are reduced, thereby improving the accuracy and reliability of detection. When the water flow hits the arc plate, the guide block at the bottom can help disperse the water flow pressure, so that the arc plate can withstand a larger water flow impact, further improving the stability of the device during bridge pile foundation detection.

[0017] The present invention has floating objects in the flowing water. When the flowing water contacts the impeller, the impeller will rotate. After the impeller rotates, it drives the slide bar 1 to rotate. After the impeller rotates, it drives the circular plate to rotate. The circular plate drives the circular rod to rotate synchronously while rotating. After the circular rod rotates, it drives the spherical block to contact the inclined surface of the inclined surface block, thereby forcing the inclined surface block to move outward. After the inclined surface block moves outward, it drives the slide bar 2 to slide outward. When the slide bar 2 slides outward, it drives the stirring plate to move outward. At this time, an extrusion force is applied to the extrusion spring. When the spherical block is no longer in contact with the inclined surface block, the extrusion force exerted on the extrusion spring is released, driving the stirring plate to reset. During the movement of the stirring plate, the water around the main body can be disturbed, thereby preventing the floating objects and impurities in the water from staying outside the device when the device is stopped for detection, which will hinder the penetration of ultrasonic waves and affect the detection of the bridge pile foundation by the ultrasonic detector. By disturbing the surrounding water by the stirring plate, floating objects can be prevented from approaching the device, ensuring that the ultrasonic wave can smoothly penetrate the water body and accurately detect the structure and condition of the pile foundation.

[0018] When the water flow contacts the curved plate of the present invention, the main body and the ultrasonic detector are impacted by the water flow and will still be shaken. When the water flow impacts the main body, by arranging a movable ring, a rectangular plate, a pull rope and a stabilizing block in the main body, when the main body is impacted by the water flow, the movable ring will generate corresponding movement according to the direction and strength of the water flow. The movement of the movable ring can drive the rectangular plate and the pull rope to move. After the pull rope moves, it can pull the stabilizing block to move. The stabilizing block has a large inertia, and its movement direction is opposite to the shaking direction of the main body, thereby generating a reverse force on the main body to offset part of the shaking energy, thereby reducing the shaking amplitude of the main body. When the shaking amplitude of the main body is reduced, the ultrasonic detector can more accurately align with the bridge pile foundation for detection, which helps to ensure that the emission and reception paths of the ultrasonic wave are more stable, reduce signal interference and errors caused by shaking, and thus improve the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a partial cross-sectional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 3 It is a cross-sectional schematic diagram of the cleaning mechanism of the present invention;

[0023] Figure 4 For the present invention Figure 3 A is an enlarged schematic diagram;

[0024] Figure 5 It is a partial cross-sectional schematic diagram of the anti-adsorption mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the anti-adsorption mechanism of the present invention;

[0026] Figure 7 is a cross-sectional schematic diagram of the stabilizing mechanism of the present invention;

[0027] Figure 8 For the present invention Figure 7 A magnified schematic diagram of B.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] In the figure: 1. cleaning mechanism; 101. bridge pile foundation; 102. fixing ring; 103. hydraulic cylinder; 104. main body; 105. ultrasonic detector; 106. fixing rod; 107. scraper one; 108. scraper two; 109. U-shaped rod; 110. connecting plate; 111. tension spring; 112. connecting strip; 113. strip plate; 114. connecting rod; 2. anti-adsorption mechanism; 201. arc plate; 202. guide block; 203. slide bar one; 204. impeller; 205. circular plate; 206. circular rod; 26. spherical block; 207. slide bar two; 208. inclined block; 209. extrusion spring; 210. stirring plate; 3. stabilizing mechanism; 301. connecting block; 302. movable groove; 303. movable ring; 304. rectangular plate; 305. pull rope; 306. stabilizing block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] For example, see Figure 1 - Figure 4 The present invention is an underwater detection device for a bridge pile foundation that can be automatically lifted and lowered, comprising a cleaning mechanism 1, the cleaning mechanism 1 also comprising a bridge pile foundation 101, a fixing ring 102 is arranged on the outer wall of the bridge pile foundation 101, a hydraulic cylinder 103 is fixedly penetrated through the outer wall of the fixing ring 102, a main body 104 is fixedly connected to the output end of the hydraulic cylinder 103, and an ultrasonic detector 105 is fixedly connected to the bottom inner wall of the main body 104;

[0032] The anti-adsorption mechanism 2 has arc-shaped plates 201 fixedly connected to the left and right outer walls of the main body 104, and guide blocks 202 fixedly connected to the bottoms of the two arc-shaped plates 201;

[0033] The stabilizing mechanism 3 has a plurality of connection blocks 301 fixedly connected to the top inner wall of the main body 104 , and movable grooves 302 are respectively formed on the outer walls of the plurality of connection blocks 301 .

[0034] The cleaning mechanism 1 also includes a fixing rod 106 fixedly connected to the top of the main body 104, and a scraper 107 is fixedly connected to the end of the fixing rod 106 away from the main body 104. The outer wall of the scraper 107 contacts the outer wall of the bridge pile foundation 101. Two scrapers 108 are slidably connected to the outer wall of the main body 104. When it is necessary to inspect the bridge pile foundation 101, the fixing ring 102 is firstly put on the outer wall of the bridge pile foundation 101, and then the fixing ring 102 is fixed to the outer wall of the bridge pile foundation 101 with bolts, and then the hydraulic cylinder 103 is started, and the hydraulic cylinder 103 drives the main body 104 to The main body 104 moves downward, and after moving downward, it drives the ultrasonic detector 105 to go deep into the water to detect the bridge pile foundation 101. The outer wall of the bridge pile foundation 101 is in the water for a long time, and impurities or silt will be adsorbed on the outer wall of the bridge pile foundation 101. When the main body 104 moves downward, it drives the scraper 107 to move downward to scrape off the impurities and silt adsorbed on the outer wall of the bridge pile foundation 101. After scraping off the adsorbed impurities and silt, the influence of the adsorbed impurities and silt on the detection of the ultrasonic detector 105 can be reduced, thereby improving the accuracy of the ultrasonic detector 105 in detecting the bridge pile foundation 101.

[0035] The cleaning mechanism 1 also includes U-shaped rods 109 respectively fixedly connected to the sides of the two scrapers 108 away from each other, the ends of the two U-shaped rods 109 away from the scrapers 108 extend into the main body 104 and are slidably connected to the main body 104, the ends of the two U-shaped rods 109 away from the scrapers 108 are respectively fixedly connected with connecting plates 110, and the sides of the two connecting plates 110 close to each other are fixedly connected with tension springs 111. After the two connecting plates 110 are close to each other, the two U-shaped rods 109 drive the two scrapers 108 to be close to each other, so that the impurities and silt adsorbed on the outer wall of the main body 104 are scraped off, which can reduce the interference of impurities and silt on the ultrasonic detector 105, so that the ultrasonic wave can more accurately penetrate the bridge pile foundation 101 and reflect back, thereby improving the accuracy of detection.

[0036] The cleaning mechanism 1 also includes connecting strips 112 rotatably connected to the outer walls of the two connecting plates 110 respectively. The two connecting strips 112 are rotatably connected to the side away from the connecting plate 110 with a strip plate 113. The left and right outer walls of the strip plate 113 are respectively fixedly connected with connecting rods 114. When the inclined block 208 moves outward, the inclined block 208 pulls the strip plate 113 outward through the connecting rod 114. After the strip plate 113 moves outward, the two connecting strips 112 are forced to drive the two connecting plates 110 to move closer to each other.

[0037] For example 2, please refer to Figure 5 - Figure 8 The present invention is an underwater detection device for bridge pile foundations that can be automatically lifted and lowered. On the basis of Example 1, the anti-adsorption mechanism 2 also includes a slide bar 203 rotatably connected to the outer wall of the guide block 202. The left end of the slide bar 203 extends into the main body 104 and is rotatably connected to the main body 104. The right end of the slide bar 203 is fixedly connected to an impeller 204. When the main body 104 descends into the water, the water at this time is in a flowing state. The flowing water has a certain impact force. The flowing water directly contacts the main body 104, which will cause the main body 104 and the ultrasonic detector 105 to shake. By providing an arc plate 201, the shape of the arc plate 201 is streamlined. The streamlined design of the arc plate 201 can make the water flow more smoothly over the surface of the main body 104, reduce the friction resistance between the water flow and the main body 104, and reduce the water flow resistance. When the main body 104 is in contact with water, the interference of the water flow on the ultrasonic detector 105 is reduced, and the shaking and deviation of the main body 104 and the ultrasonic detector 105 during detection in water are reduced, thereby improving the accuracy and reliability of detection. When the water flow hits the arc plate 201, the guide block 202 at the bottom can help disperse the water flow pressure, so that the arc plate 201 can withstand greater water flow impact, further improving the stability of the device when detecting the bridge pile foundation 101.

[0038] The anti-adsorption mechanism 2 also includes a circular plate 205 fixedly connected to the end of the sliding rod 203 away from the impeller 204, a circular rod 206 is fixedly connected to the outer wall of the circular plate 205, and a spherical block 26 is fixedly connected to the end of the circular rod 206 away from the circular plate 205. When the flowing water contacts the impeller 204, the impeller 204 will rotate. After the impeller 204 rotates, it drives the sliding rod 203 to rotate. After the impeller 204 rotates, it drives the circular plate 205 to rotate. When the circular plate 205 rotates, it drives the circular rod 206 to rotate synchronously. After the circular rod 206 rotates, it drives the spherical block 26 to contact the inclined surface of the inclined surface block 208.

[0039] The anti-adsorption mechanism 2 also includes a second slide bar 207 slidably connected to the side wall of the main body 104, and one end of the second slide bar 207 close to the circular plate 205 extends into the main body 104 and is slidably connected to the main body 104. The extension of the second slide bar 207 is fixedly connected to a ramp block 208, and the side of the ramp block 208 close to the main body 104 is fixedly connected to an extrusion spring 209, and the end of the second slide bar 207 away from the ramp block 208 is fixedly connected to a stirring plate 210. After the ramp block 208 moves outward, it drives the second slide bar 207 to slide outward. When the second slide bar 207 slides outward, it drives the stirring plate 210 to move outward. At this time, the extrusion spring 209 is pressed against the second slide bar 207. The spring 209 applies an extrusion force. When the spherical block 26 is no longer in contact with the inclined block 208, the extrusion force exerted on the extrusion spring 209 is released, driving the stirring plate 210 to reset. During the movement, the stirring plate 210 can disturb the water around the main body 104, thereby preventing the floating impurities in the water from staying outside the device when the device is stationary for detection, which will hinder the penetration of ultrasonic waves and affect the detection of bridge pile foundations by the ultrasonic detector. By disturbing the surrounding water with the stirring plate, floating objects can be prevented from approaching the device, ensuring that the ultrasonic wave can smoothly penetrate the water body and accurately detect the structure and condition of the pile foundation.

[0040] The stabilizing mechanism 3 also includes movable rings 303 rotatably connected to the plurality of movable grooves 302, the bottoms of the plurality of movable rings 303 are respectively fixedly connected to rectangular plates 304, the sides of the plurality of rectangular plates 304 away from the movable rings 303 are respectively fixedly connected to pull ropes 305, and the ends of the plurality of pull ropes 305 away from the rectangular plates 304 are fixedly connected to stabilizing blocks 306. When the water flow contacts the arc plate 201, the main body 104 and the ultrasonic detector 105 are impacted by the water flow and still shaken. When the water flow impacts the main body 104, the movable ring 303, the rectangular plate 304, the pull rope 305 and the stabilizing block 306 are arranged in the main body 104. When the main body is impacted by the water flow, the movable ring 30 3 will produce corresponding movements according to the direction and strength of the water flow. The movement of the movable ring 303 can drive the rectangular plate 304 and the pull rope 305 to move. After the pull rope 305 moves, it can pull the stabilizing block 306 to move. The stabilizing block 306 has a large inertia, and its movement direction is opposite to the shaking direction of the main body 104, thereby generating a reverse force on the main body 104 to offset part of the shaking energy, thereby reducing the shaking amplitude of the main body 104. When the shaking amplitude of the main body is reduced, the ultrasonic detector 105 can more accurately align with the bridge pile foundation 101 for detection, which helps to ensure that the transmission and reception paths of the ultrasonic wave are more stable, reduce signal interference and errors caused by shaking, and thus improve the accuracy of the detection results.

[0041] A specific application of this embodiment is:

[0042] When it is necessary to inspect the bridge pile foundation 101, first, the fixing ring 102 is put on the outer wall of the bridge pile foundation 101, and then the fixing ring 102 is fixed to the outer wall of the bridge pile foundation 101 with bolts, and then the hydraulic cylinder 103 is started. The hydraulic cylinder 103 drives the main body 104 to move downward. After the main body 104 moves downward, it drives the ultrasonic detector 105 to go deep into the water to inspect the bridge pile foundation 101. The outer wall of the bridge pile foundation 101 is in the water for a long time, and impurities or silt will be adsorbed on the outer wall of the bridge pile foundation 101. When the main body 104 moves downward, it drives the scraper 107 to move downward to scrape off the impurities and silt adsorbed on the outer wall of the bridge pile foundation 101. After the adsorbed impurities and silt are scraped off, the influence of the adsorbed impurities and silt on the detection of the ultrasonic detector 105 can be reduced, thereby improving the ultrasonic detection. The accuracy of the ultrasonic detector 105 in detecting the bridge pile foundation 101 is improved. After the scraper 107 scrapes off the impurities and silt, the impurities and silt will diffuse in the water and may be adsorbed on the outer wall of the main body 104 again. By utilizing the force of the water flow, when the inclined block 208 moves outward, the inclined block 208 pulls the strip plate 113 outward through the connecting rod 114. After the strip plate 113 moves outward, it forces the two connecting strips 112 to drive the two connecting plates 110 to approach each other. After the two connecting plates 110 approach each other, the two scrapers 108 are driven to approach each other through the two U-shaped rods 109, thereby scraping off the impurities and silt adsorbed on the outer wall of the main body 104. This can reduce the interference of impurities and silt to the ultrasonic detector 105, so that the ultrasonic wave can more accurately penetrate the bridge pile foundation 101 and reflect back, thereby improving the accuracy of detection.

[0043] When the main body 104 descends into the water, the water is in a flowing state at this time. The flowing water has a certain impact force. The flowing water directly contacts the main body 104, which will cause the main body 104 and the ultrasonic detector 105 to shake. By providing an arc plate 201, the arc plate 201 has a streamlined shape. The streamlined design of the arc plate 201 can make the water flow more smoothly over the surface of the main body 104, reducing the friction resistance between the water flow and the main body 104. Reducing the water flow resistance can reduce the interference of the water flow on the ultrasonic detector 105 when the main body 104 contacts with water, reduce the shaking and deviation of the main body 104 and the ultrasonic detector 105 during detection in water, thereby improving the accuracy and reliability of the detection. When the water flow hits the arc plate 201, the guide block 202 at the bottom can help disperse the water flow pressure, so that the arc plate 201 can withstand a larger water flow impact, further improving the stability of the device during detection of the bridge pile foundation 101.

[0044] There will be floating objects in the flowing water. When the flowing water contacts the impeller 204, the impeller 204 will rotate. After the impeller 204 rotates, it drives the slide bar 1 203 to rotate. After the impeller 204 rotates, it drives the circular plate 205 to rotate. While the circular plate 205 rotates, it drives the circular rod 206 to rotate synchronously. After the circular rod 206 rotates, it drives the spherical block 26 to contact the inclined surface of the inclined surface block 208, thereby forcing the inclined surface block 208 to move outward. After the inclined surface block 208 moves outward, it drives the slide bar 207 to slide outward. When the slide bar 207 slides outward, it drives the stirring plate 210 to move outward, and at this time, the extrusion spring 209 is pressed. An extrusion force is applied. When the spherical block 26 is no longer in contact with the inclined block 208, the extrusion force exerted on the extrusion spring 209 is released, driving the stirring plate 210 to reset. During the movement, the stirring plate 210 can disturb the water around the main body 104, thereby preventing floating impurities in the water from staying outside the device when the device is stationary for detection, which will hinder the penetration of ultrasonic waves and affect the detection of bridge pile foundations by the ultrasonic detector. By disturbing the surrounding water with the stirring plate, floating objects can be prevented from approaching the device, ensuring that the ultrasonic wave can smoothly penetrate the water body and accurately detect the structure and condition of the pile foundation.

[0045] When the water flows in contact with the curved plate 201, the main body 104 and the ultrasonic detector 105 are impacted by the water flow and still shaken. When the water flows in, the main body 104 is impacted by the movable ring 303, the rectangular plate 304, the pull rope 305 and the stabilizing block 306 are arranged in the main body 104. When the main body is impacted by the water flow, the movable ring 303 will produce corresponding movement according to the direction and strength of the water flow. The movement of the movable ring 303 can drive the rectangular plate 304 and the pull rope 305 to move. After the pull rope 305 moves, it can pull the stabilizing block 306. Block 306 moves. The stabilizing block 306 has a large inertia and its movement direction is opposite to the shaking direction of the main body 104, thereby generating a reverse force on the main body 104 to offset part of the shaking energy, thereby reducing the shaking amplitude of the main body 104. When the shaking amplitude of the main body is reduced, the ultrasonic detector 105 can more accurately align with the bridge pile foundation 101 for detection, which helps to ensure that the ultrasonic emission and reception paths are more stable, reduce signal interference and errors caused by shaking, and thus improve the accuracy of the detection results.

[0046] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An underwater detection device for a bridge pile foundation that can be automatically raised and lowered, comprising a cleaning mechanism (1), the cleaning mechanism (1) also comprising a bridge pile foundation (101), a fixing ring (102) being arranged on the outer wall of the bridge pile foundation (101), a hydraulic cylinder (103) being fixedly penetrated through the outer wall of the fixing ring (102), a main body (104) being fixedly connected to the output end of the hydraulic cylinder (103), and an ultrasonic detector (105) being fixedly connected to the bottom inner wall of the main body (104), characterized in that: Also includes: The anti-adsorption mechanism (2) has arc-shaped plates (201) fixedly connected to the left and right outer walls of the main body (104), and the bottoms of the two arc-shaped plates (201) are fixedly connected to guide blocks (202); A stabilizing mechanism (3), wherein a plurality of connection blocks (301) are fixedly connected to the inner wall of the top of the main body (104), and movable grooves (302) are respectively formed on the outer walls of the plurality of connection blocks (301); The cleaning mechanism (1) further comprises a fixing rod (106) fixedly connected to the top of the main body (104); a scraper blade 1 (107) is fixedly connected to one end of the fixing rod (106) away from the main body (104); an outer wall of the scraper blade 1 (107) contacts an outer wall of the bridge pile foundation (101); and two scraper blades 2 (108) are slidably connected to the outer wall of the main body (104); The cleaning mechanism (1) further comprises U-shaped rods (109) respectively fixedly connected to the sides of the two scrapers (108) away from each other, the ends of the two U-shaped rods (109) away from the scrapers (108) both extend into the body (104) and are slidably connected to the body (104), the ends of the two U-shaped rods (109) away from the scrapers (108) are respectively fixedly connected to connecting plates (110), and the sides of the two connecting plates (110) close to each other are fixedly connected to tension springs (111); The cleaning mechanism (1) further comprises connecting strips (112) rotatably connected to the outer walls of the two connecting plates (110), the two connecting strips (112) being rotatably connected to a strip plate (113) on one side away from the connecting plate (110), and connecting rods (114) being fixedly connected to the left and right outer walls of the strip plate (113); After the scraper blade 1 (107) scrapes away the impurities and silt, the impurities and silt will diffuse in the water and may be adsorbed on the outer wall of the main body (104) again. By utilizing the force of the water flow, when the inclined surface block (208) moves outward, the inclined surface block (208) pulls the strip plate (113) outward through the connecting rod (114). After the strip plate (113) moves outward, it forces the two connecting strips (112) to drive the two connecting plates (110) to move closer to each other. After the two connecting plates (110) move closer to each other, the two scrapers 2 (108) are driven to move closer to each other through the two U-shaped rods (109), thereby scraping away the impurities and silt adsorbed on the outer wall of the main body (104). In this way, the interference of the impurities and silt on the ultrasonic detector (105) can be reduced. The anti-adsorption mechanism (2) further comprises a sliding rod (203) rotatably connected to the outer wall of the guide block (202), the left end of the sliding rod (203) extending into the main body (104) and being rotatably connected to the main body (104), and the right end of the sliding rod (203) being fixedly connected to the impeller (204); The anti-adsorption mechanism (2) further comprises a circular plate (205) fixedly connected to an end of the sliding rod (203) away from the impeller (204); a circular rod (206) is fixedly connected to the outer wall of the circular plate (205); and a spherical block (26) is fixedly connected to an end of the circular rod (206) away from the circular plate (205); The anti-adsorption mechanism (2) further comprises a second slide bar (207) slidably connected to the side wall of the main body (104); one end of the second slide bar (207) close to the circular plate (205) extends into the main body (104) and is slidably connected to the main body (104); an extended portion of the second slide bar (207) is fixedly connected to a ramp block (208); a side of the ramp block (208) close to the main body (104) is fixedly connected to a compression spring (209); and one end of the second slide bar (207) away from the ramp block (208) is fixedly connected to a stirring plate (210); There are floating objects in the flowing water. When the flowing water contacts the impeller (204), the impeller (204) rotates. The impeller (204) rotates and drives the sliding rod (203) to rotate. The impeller (204) rotates and drives the circular plate (205) to rotate. The circular plate (205) drives the circular rod (206) to rotate synchronously while rotating. The circular rod (206) drives the spherical block (26) to contact the inclined surface of the inclined surface block (208), thereby forcing the inclined surface block (208) to move outward. The inclined surface block (208) moves outward and drives the sliding rod (203) to rotate. The second rod (207) slides outwards, and when the second rod (207) slides outwards, it drives the stirring plate (210) to move outwards, and at this time, a squeezing force is applied to the squeezing spring (209). When the spherical block (26) is no longer in contact with the inclined block (208), the squeezing force on the squeezing spring (209) is released, driving the stirring plate (210) to reset. During the movement of the stirring plate (210), the water around the main body (104) can be disturbed, thereby preventing floating impurities in the water from staying outside the device when the device is stopped for detection; The stabilizing mechanism (3) further comprises movable rings (303) rotatably connected to the plurality of movable grooves (302), the bottoms of the plurality of movable rings (303) being fixedly connected to rectangular plates (304), the sides of the plurality of rectangular plates (304) away from the movable rings (303) being fixedly connected to pull ropes (305), and the ends of the plurality of pull ropes (305) away from the rectangular plates (304) being fixedly connected to stabilizing blocks (306); When the water flow contacts the curved plate (201), the main body (104) and the ultrasonic detector (105) are impacted by the water flow and still shake. When the water flow impacts the main body (104), by arranging a movable ring (303), a rectangular plate (304), a pull rope (305) and a stabilizing block (306) in the main body (104), when the main body is impacted by the water flow, the movable ring (303) will generate corresponding movement according to the direction and force of the water flow. The movement of the movable ring (303) can drive the rectangular plate (304) and the pull rope (305) to move. After the pull rope (305) moves, it can pull the stabilizing block (306) to move. The stabilizing block (306) has a large inertia, and its movement direction is opposite to the shaking direction of the main body (104), thereby generating a reverse force on the main body (104) to offset part of the shaking energy, thereby reducing the shaking amplitude of the main body (104).

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