A water seepage detection device for bridge engineering

Abstract

The present invention relates to the technical field of bridge seepage detection, and in particular to a water seepage detection device for bridge engineering, comprising a truss, which is installed on the side of a transfer device on the side of a bridge via a boom, a turntable provided on the side of the slide of the truss, a telescopic rod fixedly installed on the side of the turntable and arranged horizontally with the truss, an output end of the telescopic rod fixedly sleeved with a mounting seat, and a detection mechanism and a driving mechanism provided on the upper side of the mounting seat. The present invention can realize a simple single hydraulic drive by setting a driving mechanism and a detection mechanism so that the detection component can be adaptively extended and retracted step by step to the lower side of the bridge, and the single hydraulic system can realize the step-by-step drive of the multi-stage movable cylinder by the cooperation of the guide chamber, the guide groove and the liquid pump, and the staged disengagement design of the first and second blocking plates, in conjunction with the elastic limit of the constraint rod and the support cylinder, so that the device can adapt to the curved surface or height change of the bottom of the bridge to avoid rigid contact and damage to the bridge body.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge water seepage detection, in particular to a water seepage detection device used in bridge engineering. Background Art

[0002] During the long-term service of bridge projects, affected by factors such as environmental erosion, load and material aging, the bridge body is prone to defects such as cracks and pores, leading to water seepage problems. Water seepage not only accelerates the carbonization of concrete and the corrosion of steel bars, but may also cause structural safety hazards; traditional water seepage detection mostly relies on manual handheld equipment to observe the degree of water level drop over a certain period of time on the side of the bridge through a sealed waterproof ring and a seepage pipe. This has the problem of low efficiency and will also affect the normal traffic and use of the bridge. Alternatively, penetration detection is carried out on the underside of the bridge by a crane, which has the problems of high risk of high-altitude operation and insufficient detection accuracy.

[0003] Similarly, existing automated detection devices often have complex structures, with multiple independent hydraulic control systems, resulting in high costs and difficult maintenance. Furthermore, the rigid contact of the telescopic mechanism can easily damage the bridge surface, and the mechanism lacks adaptive adjustment capabilities, making it difficult to adapt to curved or uneven areas on the bridge bottom. Furthermore, the post-detection markings and data are poorly correlated, hindering subsequent re-inspections and defect tracking. Therefore, a water seepage detection device integrating adaptive telescopic movement, a single hydraulic drive, efficient marking, and pressure feedback is urgently needed to improve detection efficiency, accuracy, and safety. To this end, we propose a water seepage detection device for bridge engineering. Summary of the Invention

[0004] In order to overcome the technical problems existing in the above-mentioned prior art, the present invention provides a water seepage detection device for bridge engineering.

[0005] To solve the above technical problems, the present invention provides the following technical solution: comprising a truss, which is installed on the side of the transfer device on the side of the bridge via a boom, a turntable is provided on the side of the slide of the truss, a telescopic rod is fixedly installed on the side of the turntable, and the telescopic rod is arranged horizontally with the truss, the output end of the telescopic rod is fixedly sleeved with a mounting seat, and a detection mechanism and a driving mechanism are provided on the upper side of the mounting seat;

[0006] The driving mechanism includes an observation camera, a liquid supply tank and a liquid storage tank, wherein a first liquid pump and a second liquid pump are respectively provided inside the liquid supply tank and the liquid storage tank, and a connecting pipe is fixedly installed between the liquid supply tank and the liquid storage tank;

[0007] The detection mechanism includes a first movable cylinder, a second movable cylinder and a third movable cylinder, wherein a first blocking plate and a second blocking plate are movably provided on the lower sides of the second movable cylinder and the third movable cylinder respectively, a matching plate is threadedly installed on the upper side of the third movable cylinder, a movable cavity is provided at the center position of the side of the matching plate, a trigger plate is movably installed in the movable cavity, and a linkage rod is fixedly installed at the center position of the lower side of the trigger plate;

[0008] A water blocking plate is movably provided on the upper side of the matching plate, an installation cavity is provided inside the matching plate, a clamping block, a supporting block and a blocking block are provided inside the installation cavity, a movable groove is provided on the side surfaces of the first blocking plate and the second blocking plate, a movable rod, a third supporting cylinder and a matching block are provided inside the movable groove.

[0009] Furthermore, the observation camera is fixedly mounted on the upper side of the mounting base, a guide cavity is opened at the center position of the side of the mounting base, and the liquid supply tank and the liquid storage tank are symmetrically fixedly mounted on the upper side of the mounting base.

[0010] Furthermore, the wall of the guide cavity is provided with a guide groove penetrating the mounting seat and the guide groove corresponds to the positions of the first liquid pump and the second liquid pump, the liquid outlet of the first liquid pump corresponds to the position of the guide groove, and the liquid inlet of the second liquid pump corresponds to the position of the guide groove.

[0011] Furthermore, the first movable cylinder is threadedly installed on the inner wall position of the mounting seat, the second movable cylinder is movably installed on the inner side of the first movable cylinder, and the third movable cylinder is movably installed on the inner side of the second movable cylinder. The sides of the second movable cylinder and the third movable cylinder are respectively provided with sealing rings that fit in the inner side positions of the corresponding movable cylinders. The first blocking plate and the second blocking plate are respectively fitted on the lower side positions of the second movable cylinder and the third movable cylinder. The upper sides of the first blocking plate and the second blocking plate are respectively fixedly installed with second constraint rods at equal distances, and the second constraint rod extends through the second movable cylinder and the third movable cylinder. The sides of the second movable cylinder, the third movable cylinder and the second constraint rod are respectively fixedly connected with fourth support cylinders, and the fourth support cylinder is movably sleeved on the side positions of the second constraint rod.

[0012] Furthermore, a support frame is provided on the lower side of the first movable cylinder and the support frame is movably provided at an inner position of the mounting seat, and the first support cylinder is symmetrically fixedly connected between the support frame and the side surface of the first movable cylinder.

[0013] Furthermore, the trigger plate portion extends to the position above the mating plate, the lower side of the linkage rod is fitted on the upper position of the second blocking plate, the first constraint rod is fixedly installed in an array in a circular pattern at equal intervals on the wall of the active cavity, and the other end of the first constraint rod passes through the trigger plate and is fixedly installed at another wall position of the active cavity, a second support tube is fixedly connected between the first constraint rod pressure sensor and the side of the trigger plate, and the second support tube is movably sleeved on the side position of the first constraint rod.

[0014] Furthermore, the clamping block is movably installed inside the installation cavity and is clamped in the internal position of the recessed part of the circular ring plate of the water blocking plate. The support block is symmetrically fixedly connected between the side of the clamping block and the wall of the installation cavity. An electric push rod is fixedly installed on the lower side of the mating plate and the output end of the electric push rod passes through the mating plate and extends to the internal position of the installation cavity. The blocking block is fixedly installed at the output end of the electric push rod, and a first connecting groove is provided on the wall of the installation cavity.

[0015] Furthermore, the wall surface of the movable groove is provided with a second connecting groove which passes through the first blocking plate and the second blocking plate, the movable rod is movably installed inside the movable groove, the third support tube is fixedly connected between the side surface of the movable rod and the wall surface of the movable groove and the third support tube is movably sleeved on the side surface of the movable rod, the matching block is fixedly installed on the side surface of the movable rod and the matching block is movably set in the internal position of the movable groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention, by providing a driving mechanism and a detection mechanism, can realize a simple single hydraulic drive to enable the detection component to be adaptively extended and retracted step by step to the position under the bridge. Specifically, through the cooperation of the guide chamber, the guide groove and the liquid pump, the single hydraulic system can drive the multi-stage movable cylinder (the first movable cylinder, the second movable cylinder, and the third movable cylinder) step by step. The staged disengagement design of the first blocking plate and the second blocking plate, combined with the elastic limitation of the restraining rod and the support cylinder, enables the device to adapt to the curved surface or height changes at the bottom of the bridge, avoiding damage to the bridge body due to rigid contact, while reducing the complexity and cost of multi-channel hydraulic control.

[0018] 2. The present invention can realize quick-setting marking and rapid reset after detection by setting a water-blocking plate and its peripheral components. Specifically, the quick-setting cement layer of the water-blocking plate is linked with the card block design. After detection, it automatically detaches and adheres to the bottom of the bridge as a mark, which is convenient for reviewers to re-inspect the positioning and subsequent repeated detection of the same point position; the coordinated control of the electric push rod and the block realizes the rapid switching of mark release and liquid reflux, and cooperates with the liquid pump circulation system to realize the efficient reset of the device and then replace the new water-blocking plate for use.

[0019] 3. The present invention can realize self-locking during water seepage detection and pressure feedback detection when contacting the lower side of the bridge by providing a movable groove, a second connecting groove, and its internal movable rod, a first restraint rod and other components. Specifically, the liquid pressure pushes the movable rod and the matching block to clamp the inner wall of the movable cylinder, realizing mechanical self-locking during the detection process and preventing telescopic failure from affecting water seepage detection; the pressure sensor of the first restraint rod feeds back the contact status through the pressure signal of the trigger plate, and it can be known that the matching plate contacts the lower side of the bridge. The matching plate status can be braked without manual observation, and the water seepage situation can be judged in real time in combination with the liquid pressure change.

[0020] 4. The present invention provides a support frame and a first support tube, etc. The elastic extrusion design of the first support tube enhances the stability of the installation of the first movable tube, prevents the thread from loosening, and can effectively improve the sealing effect of the first movable tube. The sealing rings on the sides of the second movable tube and the third movable tube can improve the sealing of the liquid channel and avoid leakage interfering with the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 3 It is a partial structural cross-sectional schematic diagram of the present invention;

[0024] Figure 4 It is a schematic diagram of the partial structure of the driving mechanism of the present invention;

[0025] Figure 5 It is a partial cross-sectional structural diagram of the first movable cylinder of the present invention;

[0026] Figure 6 It is a schematic diagram of a partial cross-sectional structure of the matching plate of the present invention;

[0027] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at point B;

[0028] Figure 8 For the present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0029] Figure 9 It is a partial structural diagram of the first blocking plate and the second blocking plate of the present invention;

[0030] Figure 10 It is a schematic diagram of the use state of the present invention.

[0031] Wherein: 1. Truss; 11. Turntable; 12. Telescopic rod; 2. Mounting base; 3. Driving mechanism; 31. Observation camera; 32. Diversion chamber; 321. Diversion trough; 33. Liquid supply tank; 331. First liquid pump; 34. Liquid storage tank; 341. Second liquid pump; 35. Connecting pipe; 4. Detection mechanism; 41. First movable cylinder; 411. Support frame; 412. First supporting cylinder; 42. Second movable cylinder; 421. First blocking plate; 43. Third movable cylinder; 431. Second blocking plate. 44. Matching plate; 441. Movable cavity; 442. Trigger plate; 443. Linkage rod; 444. First constraint rod; 445. Second support cylinder; 45. Water blocking plate; 451. Installation cavity; 452. Block; 453. Support block; 454. Electric push rod; 455. Block; 456. First connecting groove; 46. Movable groove; 461. Second connecting groove; 462. Movable rod; 463. Third support cylinder; 464. Matching block; 47. Second constraint rod; 471. Fourth support cylinder. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, purpose and efficacy of the present invention easy to understand, the present invention is further described below in conjunction with specific examples, but the following examples are only preferred embodiments of the present invention, not all. Based on the examples in the embodiments, other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial channels.

[0033] Example: Figures 1 to 3 As shown, a water seepage detection device for bridge engineering includes a truss 1, which is an electrically driven sliding platform. It can be installed on the side of a transfer device on the side of the bridge through a boom. As the transfer device moves on the side of the bridge, the device moves accordingly. A turntable 11 is provided on the side of the slide of the truss 1. The turntable 11 can be a standard electric turntable. A telescopic rod 12 is fixedly installed on the side of the turntable 11 and the telescopic rod 12 is horizontally arranged with the truss 1. The telescopic rod 12 can be a standard electric push rod. A mounting seat 2 is fixedly sleeved on the output end of the telescopic rod 12. The mounting seat 2 is a rectangular platform. A detection mechanism 4 for detecting water seepage and a driving mechanism 3 for hydraulically driving the detection mechanism 4 are provided on the upper side of the mounting seat 2.

[0034] The detection mechanism 4 can be hydraulically driven by the driving mechanism 3, and multiple components can be driven by a single hydraulic supply. The simple driving logic reduces the cost of setting up the device.

[0035] like Figures 2 to 4As shown, the driving mechanism 3 includes an observation camera 31 fixedly mounted on the upper side of the mounting seat 2. The observation camera 31 can use a standard high-definition camera signal. The observation camera 31 can assist the operator in observing and preliminarily positioning the lower side of the bridge. A diversion cavity 32 is provided at the center position of the side of the mounting seat 2. The diversion cavity 32 is a circular cavity. A liquid supply tank 33 and a liquid storage tank 34 are symmetrically fixedly mounted on the upper side of the mounting seat 2 corresponding to the position of the diversion cavity 32. The liquid supply tank 33 and the liquid storage tank 34 are rectangular boxes with hollow interiors. A first liquid pump 331 and a second liquid pump 341 are respectively provided inside the liquid supply tank 33 and the liquid storage tank 34. A diversion groove 321 is provided on the wall of the diversion cavity 32 to pass through the mounting seat 2, and the diversion groove 321 corresponds to the first liquid pump 331 and the second liquid pump 34. 1 position, different from the liquid outlet of the first liquid pump 331 corresponding to the guide groove 321 position, the liquid inlet of the second liquid pump 341 corresponds to the guide groove 321 position, the first liquid pump 331 can be used to input the liquid inside the liquid supply tank 33 through the guide groove 321 to the internal position of the guide cavity 32, after detection, the second liquid pump 341 is used to input the liquid inside the guide cavity 32 through the guide groove 321 to the internal position of the liquid storage tank 34, and a connecting pipe 35 is fixedly installed between the liquid supply tank 33 and the liquid storage tank 34. The connecting pipe 35 is a circular pipe with a water pump on the side. The water pump on the side of the connecting pipe 35 can pump the liquid inside the liquid storage tank 34 into the liquid supply tank 33, and cooperate with the first liquid pump 331 and the driving mechanism 3 to realize liquid circulation in the liquid storage tank 34, so that basic single hydraulic drive can be performed;

[0036] The detection mechanism 4 can cooperate with the driving mechanism 3 to perform step-by-step adaptive telescopic operation through single hydraulic drive, and can adaptively fit on the bottom side of the bridge to perform water seepage detection. The whole process only requires single hydraulic drive, and it can perform self-locking operation after it is in place.

[0037] like Figure 2 、 Figure 3 and Figures 5 to 9As shown, the detection mechanism 4 includes a first movable cylinder 41 which is threadedly mounted on the inner wall of the mounting seat 2, the first movable cylinder 41 is a circular cylinder with an "L"-shaped cross section, a second movable cylinder 42 is movably mounted on the inner side of the first movable cylinder 41, and a sealing ring is provided on the side of the second movable cylinder 42 to fit the inner side of the first movable cylinder 41, the second movable cylinder 42 is a circular cylinder with a "Z"-shaped cross section, a third movable cylinder 43 is movably mounted on the inner side of the second movable cylinder 42, and a sealing ring is provided on the side of the third movable cylinder 43 to fit the inner side of the second movable cylinder 42, the third movable cylinder 43 is a circular cylinder with a "Z"-shaped cross section, and a first blocking plate 421 and a second blocking plate 431 are movably provided on the lower sides of the second movable cylinder 42 and the third movable cylinder 43, respectively. The first and second blocking plates 421 and 431 are respectively fitted at the lower side positions of the corresponding cylinders. The first blocking plate 421 and the second blocking plate 431 are circular plates. Second constraint rods 47 are fixedly installed in a circular array and equidistantly on the upper sides of the first and second blocking plates 421 and 431, and the second constraint rods 47 pass through the second movable cylinder 42 and the third movable cylinder 43 and extend out. The second constraint rod 47 is a "T"-shaped cylindrical rod. A fourth support tube 471 is fixedly connected between the sides of the second movable cylinder 42, the third movable cylinder 43 and the second constraint rod 47, and the fourth support tube 471 is movably sleeved on the side position of the second constraint rod 47. The fourth support tube 471 is an elastic bellows. A support frame 411 is provided on the lower side of the first movable cylinder 41, and the support frame 411 is movably set in the inner position of the mounting seat 2 The support frame 411 is a circular frame with continuous convexities on the side, and a first support cylinder 412 is symmetrically fixedly connected between the support frame 411 and the side of the first movable cylinder 41. The first support cylinder 412 is a corrugated cylinder made of elastic material. Specifically, when the first movable cylinder 41 is installed inside the mounting seat 2, the support frame 411 is squeezed on the bottom wall of the mounting seat 2, so that the first support cylinder 412 is squeezed and deformed. In this way, the elastic squeezing of the first movable cylinder 41 can effectively prevent the loosening of the thread due to vibration, and the first support cylinder 412 can enhance the sealing of the installation of the first movable cylinder 41. When the guide chamber 32 is hydraulically supplied, the first blocking plate 421 is first pushed to push the second movable cylinder 42 and the third movable cylinder 43 in the first movable cylinder 41. The cylinder 41 is pressed against the second support tube 47 and the second support tube 47 is pressed against the first support tube 41. The first support tube 47 is pressed against the second support tube 47 and the second support tube 47 is pressed against the first support tube 47. The first support tube 47 is pressed against the second support tube 47 and the second support tube 47 is pressed against the first support tube 47. The first support tube 47 is pressed against the second support tube 41 and the second support tube 47 is pressed against the first support tube 47. The first support tube 47 is pressed against the second support tube 41 and the second support tube 47 is pressed against the first support tube 47. The first support tube 47 is pressed against the second support tube 41 and the second support tube 47 is pressed against the first support tube 41.

[0038] The upper side of the third movable cylinder 43 is threadedly mounted with a matching plate 44, which is a convex circular plate with a thread on the side. A movable cavity 441 is provided at the center of the side of the matching plate 44, and the movable cavity 441 is a cylindrical cavity with a cross-shaped cross section. A trigger plate 442 is movably mounted in the movable cavity 441, and the trigger plate 442 partially extends to the upper position of the matching plate 44. The trigger plate 442 is a circular plate with a convex side. A linkage rod 443 is fixedly mounted at the center of the lower side of the trigger plate 442, and the lower side of the linkage rod 443 is fixedly mounted. The linkage rod 443 is a circular rod, which is fixed on the upper side of the second blocking plate 431. The first constraint rod 444 is fixedly installed in an array at equal intervals on the circumference of the wall of the active chamber 441. The other end of the first constraint rod 444 passes through the trigger plate 442 and is fixedly installed on the other wall position of the active chamber 441. The first constraint rod 444 is a "T"-shaped circular rod with a pressure sensor on the side and its own side is stepped. It limits the trigger plate 442 from the bottom side to avoid the trigger plate 442 from being attached to the bottom wall of the active chamber 441 and causing liquid blockage. A second support cylinder 445 is fixedly connected between the pressure sensor 44 and the side of the trigger plate 442, and the second support cylinder 445 is movably sleeved on the side of the first constraint rod 444. The second support cylinder 445 is a corrugated cylinder made of elastic material. Specifically, the second movable cylinder 42 and the third movable cylinder 43 are pushed, and the matching plate 44 can be moved upward accordingly. The trigger plate 442 is squeezed by the bottom side of the bridge, and the trigger plate 442 slides into the internal position of the movable cavity 441. The synchronous trigger plate 442 is constrained by the first constraint rod 444 to squeeze the second The support cylinder 445 is deformed, and the pressure sensor on the side of the first restraining rod 444 receives a force feedback signal to the external controller, indicating that the matching plate 44 is in contact with the lower side of the bridge. If the second movable cylinder 42 has not yet completely slid to the top position inside the first movable cylinder 41, the provided linkage rod 443 can actively push the second blocking plate 431 and the first blocking plate 421 away from the lower side of the second movable cylinder 42 and the third movable cylinder 43, so that the liquid can flow into the inner position of the second movable cylinder 42 and the third movable cylinder 43, and there is no need to complete subsequent detection operations.

[0039] A water blocking plate 45 is movably provided on the upper side of the matching plate 44. The water blocking plate 45 is composed of a quick-setting cement layer and a circular ring plate with a concave cross-section. A mounting cavity 451 is mirrored in the interior of the matching plate 44 corresponding to the concave part of the circular ring plate of the water blocking plate 45. The mounting cavity 451 is a "J"-shaped groove. A clamping block 452 is movably installed in the interior of the mounting cavity 451 and the clamping block 452 is clamped in the internal position of the concave part of the circular ring plate of the water blocking plate 45. The clamping block 452 is an "L"-shaped block. A supporting block 453 is symmetrically fixedly connected between the side surface of the clamping block 452 and the wall surface of the mounting cavity 451. The supporting block 453 is a continuous corrugated elastic A rectangular block of rubber material is provided. An electric push rod 454 is symmetrically fixedly installed on the lower side of the matching plate 44 corresponding to the mounting cavity 451, and the output end of the electric push rod 454 passes through the matching plate 44 and extends to the internal position of the mounting cavity 451. A blocking block 455 is fixedly installed at the output end of the electric push rod 454, and the blocking block 455 is movably set at the internal position of the mounting cavity 451. The blocking block 455 is a rectangular block made of rubber material. A first connecting groove 456 that passes through the matching plate 44 to the inside of the movable cavity 441 is opened on the wall surface of the mounting cavity 451. The first connecting groove 456 is a cylindrical groove. Specifically, by default, the electric push rod 454 pushes the blocking block 455. 55 to the inside of the installation cavity 451, at this time the blocking block 455 blocks the first connecting groove 456, and the blocking block 452 is elastically supported by the supporting block 453 and is clamped in the inner part of the recessed part of the circular plate of the water blocking plate 45, which can limit the water blocking plate 45. The water blocking plate 45 can isolate and waterproof the side of the matching plate 44, and the liquid pressure increases to a certain value and flows out from the third movable cylinder 43 to the movable cavity 441. The water permeability of the bridge can be known by detecting the change in liquid pressure. After the water permeability is detected, the external controller can control the electric push rod 454 to pull the blocking block 455 to slide out of the installation cavity 451. When the liquid flows from the first connecting groove 456 into the installation cavity 451, it pushes and squeezes the block 452, so that the block 452 is separated from the internal position of the circular plate of the water blocking plate 45. The electric push rod 454 pushes the block 455 to slide into the installation cavity 451 to block it. At this time, the block 452 continues to be pushed. When the matching plate 44 is subsequently reset and retracted, the quick-setting cement of the water blocking plate 45 adheres to the bottom side of the bridge, and the circular plate is separated from the side position of the matching plate 44. The water blocking plate 45 serves as a detection mark on the bottom side of the bridge, which is convenient for subsequent inspectors to conduct work review statistics and to change the location for detection when detecting water seepage on the lower side.

[0040] The side surfaces of the first blocking plate 421 and the second blocking plate 431 are equidistantly provided with movable grooves 46 in a circular array. The movable grooves 46 are cylindrical grooves with an I-shaped cross-section. A second connecting groove 461 is provided on the wall of the movable groove 46, which passes through the first blocking plate 421 and the second blocking plate 431. The second connecting groove 461 is an "L"-shaped cylindrical groove. A movable rod 462 is movably installed inside the movable groove 46. The movable rod 462 is a "T"-shaped round rod. A third supporting tube 463 is fixedly connected between the side surface of the movable rod 462 and the wall surface of the movable groove 46, and the third supporting tube 463 is movably sleeved on the side surface of the movable rod 462. The third supporting tube 463 is a corrugated cylinder made of elastic material. A matching block 464 is fixedly installed on the side surface of the movable rod 462, and the matching block 464 is movably set inside the movable groove 46. The matching block 464 is rubber A circular block made of rubber material; specifically, after the first movable cylinder 41, the second movable cylinder 42 and the third movable cylinder 43 complete the adaptive expansion and contraction, the matching plate 44 is attached to the bottom side of the bridge. At this time, the first blocking plate 421 and the second blocking plate 431 are separated from the lower side of the second movable cylinder 42 and the third movable cylinder 43. When the liquid pressure increases to a certain value, the liquid flows from the second connecting groove 461 into the movable groove 46. The pressure liquid pushes the movable rod 462 to squeeze the third support cylinder 463 to deform. The movable rod 462 pushes the matching block 464 to fit the inner side of the first movable cylinder 41 and the second movable cylinder 42. In this way, the first blocking plate 421 and the second blocking plate 431 can be used to damp and fix the first movable cylinder 41, the second movable cylinder 42 and the third movable cylinder 43, so that expansion and contraction failure will not occur during detection.

[0041] Working principle:

[0042] Before testing: Fix the truss 1 to the side of the transfer device through the boom, and move the transfer device along the bridge to move the truss 1 and the bridge horizontally to a suitable position;

[0043] During the test and use: the first step is position adjustment: the turntable 11 drives the telescopic rod 12 to rotate, and the telescopic rod 12 pushes and pulls the mounting base 2 to move to the appropriate position. The operator observes through the observation camera 31 until the mounting base 2 reaches the appropriate position and stops;

[0044] The second step is telescopic operation: the liquid in the liquid supply box 33 flows from the guide groove 321 into the guide cavity 32 through the first liquid pump 331. At this time, the liquid first pushes the first blocking plate 421 to make the second movable cylinder 42 and the third movable cylinder 43 slide inside the first movable cylinder 41 until the second restraining rod 47 on the side of the second movable cylinder 42 is pressed against the inner top position of the first movable cylinder 41, and the first blocking plate 421 is separated from the lower side of the second movable cylinder 42. The liquid continues to flow into the inner position of the second movable cylinder 42, pushing the second blocking plate 431 to make the third movable cylinder 43 slide inside the second movable cylinder 42 until the second restraining rod 47 on the side of the third movable cylinder 43 is pressed against the inner top position of the second movable cylinder 42, and the second blocking plate 431 is separated from the lower side of the third movable cylinder 43. The liquid can flow into the inner position of the third movable cylinder 43 for subsequent liquid pressurization detection;

[0045] The third step is water seepage detection: the matching plate 44 is synchronously raised with the second movable cylinder 42 and the third movable cylinder 43, and the trigger plate 442 is squeezed on the bottom side of the bridge and slides into the movable cavity 441. The trigger plate 442 is constrained by the first constraint rod 444 to squeeze the second support cylinder 445 and deform. The pressure sensor of the first constraint rod 444 is stressed and receives a signal. The operator can know that the matching plate 44 contacts the bottom side of the bridge. At this time, the first liquid pump 331 pressurizes and supplies liquid, so that the liquid pressure increases to a certain value. The water seepage situation can be judged by detecting the pressure change of the liquid within a certain period of time; the trigger plate 442 is squeezed and the second blocking plate 431 and the first blocking plate 421 are completely separated from the lower side of the second movable cylinder 42 and the third movable cylinder 43 through the linkage rod 443, so as to avoid the second movable cylinder 42 and the third movable cylinder 43 not completely sliding to the inner top position of the first movable cylinder 41 and the second movable cylinder 42, and the first blocking plate 421 and the second blocking plate 431 are not separated from the lower side of the second movable cylinder 42 and the third movable cylinder 43.

[0046] The fourth step is to detect self-locking: at this time, after the first movable cylinder 41, the second movable cylinder 42 and the third movable cylinder 43 complete the adaptive extension and contraction, the matching plate 44 is attached to the bottom side of the bridge, and the matching water blocking plate 45 acts as a waterproof barrier on the side of the matching plate 44 to perform stable water seepage detection. The liquid inside the diversion cavity 32 increases to a certain value, and the liquid flows from the second connecting groove 461 into the movable groove 46, pushing the movable rod 462 to squeeze the third supporting cylinder 463 to deform. The movable rod 462 pushes the matching block 464 to fit the inner side of the first movable cylinder 41 and the second movable cylinder 42, thereby realizing the locking operation between the first movable cylinder 41, the second movable cylinder 42 and the third movable cylinder 43;

[0047] After the test is used, the first step is to mark the test point: the set electric push rod 454 pulls the blocking block 455 to slide out of the installation cavity 451. At this time, the liquid flows into the installation cavity 451 from the first connecting groove 456, pushing the block 452 to slide inside the installation cavity 451 to squeeze the support block 453 to deform. The block 452 breaks away from the position of the concave part of the circular plate of the water blocking plate 45, and the water blocking plate 45 loses its limit. Then the electric push rod 454 pushes the blocking block 455 to slide into the installation cavity 451 again, so that the block 452 is continuously pushed by the liquid and does not move. After the quick-setting cement of the water blocking plate 45 dries, the circular plate is fixed to the bottom side of the bridge.

[0048] The second step is to retract and reset: at this time, the first liquid pump 331 stops working, and the second liquid pump 341 starts working to flow the liquid inside the guide cavity 32 from the guide cavity 32 through the guide groove 321 into the liquid storage tank 34 for collection. The excess liquid in the liquid storage tank 34 is pumped to the liquid supply tank 33 through the side water pump of the connecting pipe 35 for liquid circulation. After the liquid pressure becomes smaller, first, under the elastic support of the third support cylinder 463, the movable rod 462 pulls the matching block 464 to reset to the inside of the movable groove 46, and then the third movable cylinder 43 and the second movable cylinder 42 gradually shrink and move downward, and the matching plate 44 is away from the bottom side of the bridge, and the trigger plate 442 is elastically supported by the second support cylinder 445 to reset and close the movable chamber 441. At this time, the electric push rod 454 pulls the blocking block 455 to slide out of the installation chamber 451 and resets again, pushing the liquid in the blocking block 452 to flow back from the first connecting groove 456 to the inside of the diversion chamber 32. In this way, as the liquid in the diversion chamber 32 is extracted, the third movable cylinder 43 and the second movable cylinder 42 retract to the position inside the first movable cylinder 41, and the first blocking plate 421 and the second blocking plate 431 are attached to the lower sides of the second movable cylinder 42 and the third movable cylinder 43 to complete the telescopic reset operation;

[0049] The third step is to replace accessories: rotate the mounting base 2 out of the bottom side of the bridge through the telescopic rod 12 and the turntable 11, and the side boom of the transfer device lifts the truss 1 to the side of the bridge. The operator directly presses and snaps the new water blocking plate 45 into the side position of the matching plate 44 to conduct another water seepage test.

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A water seepage detection device for bridge engineering, comprising a truss (1), which is installed at a side position of a transfer device on the side of the bridge through a boom, a turntable (11) is provided on the side of the slide of the truss (1), a telescopic rod (12) is fixedly installed on the side of the turntable (11), and the telescopic rod (12) is arranged horizontally with the truss (1), an output end of the telescopic rod (12) is fixedly sleeved with a mounting seat (2), and a detection mechanism (4) and a driving mechanism (3) are provided on the upper side of the mounting seat (2); Its characteristics are: The driving mechanism (3) includes an observation camera (31), a liquid supply tank (33) and a liquid storage tank (34); a first liquid pump (331) and a second liquid pump (341) are respectively provided inside the liquid supply tank (33) and the liquid storage tank (34); a connecting pipe (35) is fixedly installed between the liquid supply tank (33) and the liquid storage tank (34); The detection mechanism (4) includes a first movable cylinder (41), a second movable cylinder (42) and a third movable cylinder (43); a first blocking plate (421) and a second blocking plate (431) are movably provided on the lower sides of the second movable cylinder (42) and the third movable cylinder (43); a matching plate (44) is threadedly installed on the upper side of the third movable cylinder (43); a movable cavity (441) passing through the matching plate (44) is provided at the center position of the side surface; a trigger plate (442) is movably installed inside the movable cavity (441); and a linkage rod (443) is fixedly installed at the center position of the lower side of the trigger plate (442); A water blocking plate (45) is movably provided on the upper side of the matching plate (44), the water blocking plate (45) being composed of a quick-setting cement layer and a circular ring plate with a concave cross-section. A mounting cavity (451) is provided inside the matching plate (44), a clamping block (452), a supporting block (453) and a blocking block (455) are provided inside the mounting cavity (451), the supporting block (453) being a rectangular block of elastic material with a continuous corrugated shape, movable grooves (46) are provided on the sides of the first blocking plate (421) and the second blocking plate (431), and a movable rod (462), a third supporting cylinder (463) and a matching block (464) are provided inside the movable grooves (46); The lower side of the linkage rod (443) is attached to the upper side of the second blocking plate (431), and an electric push rod (454) is symmetrically fixedly installed on the lower side of the matching plate (44) corresponding to the installation cavity (451), and the output end of the electric push rod (454) passes through the matching plate (44) and extends to the internal position of the installation cavity (451), and the blocking block (455) is fixedly installed at the output end of the electric push rod (454).

2. The water seepage detection device for bridge engineering according to claim 1, characterized in that: The observation camera (31) is fixedly mounted on the upper side of the mounting base (2), a guide cavity (32) is provided at the center of the side of the mounting base (2), and a liquid supply tank (33) and a liquid storage tank (34) are symmetrically fixedly mounted on the upper side of the mounting base (2).

3. The water seepage detection device for bridge engineering according to claim 2, characterized in that: The wall surface of the guide cavity (32) is provided with a guide groove (321) penetrating the mounting seat (2), and the guide groove (321) corresponds to the positions of the first liquid pump (331) and the second liquid pump (341), the liquid outlet of the first liquid pump (331) corresponds to the position of the guide groove (321), and the liquid inlet of the second liquid pump (341) corresponds to the position of the guide groove (321).

4. The water seepage detection device for bridge engineering according to claim 3, characterized in that: The first movable cylinder (41) is threadedly mounted on the inner wall of the mounting seat (2), the second movable cylinder (42) is movably mounted on the inner side of the first movable cylinder (41), and the third movable cylinder (43) is movably mounted on the inner side of the second movable cylinder (42). The sides of the second movable cylinder (42) and the third movable cylinder (43) are respectively provided with sealing rings that fit on the inner sides of the corresponding movable cylinders. The first blocking plate (421) and the second blocking plate (431) are respectively fitted on the second movable cylinder (42) and the third movable cylinder ( 43), second restraining rods (47) are fixedly installed equidistantly on the upper sides of the first blocking plate (421) and the second blocking plate (431), and the second restraining rod (47) extends through the second movable cylinder (42) and the third movable cylinder (43), and a fourth supporting cylinder (471) is fixedly connected between the side surfaces of the second movable cylinder (42), the third movable cylinder (43) and the second restraining rod (47), and the fourth supporting cylinder (471) is movably sleeved on the side surface of the second restraining rod (47).

5. The water seepage detection device for bridge engineering according to claim 4, characterized in that: A support frame (411) is provided on the lower side of the first movable cylinder (41), and the support frame (411) is movably provided at an inner position of the mounting seat (2). A first support cylinder (412) is symmetrically fixedly connected between the support frame (411) and the side surface of the first movable cylinder (41).

6. The water seepage detection device for bridge engineering according to claim 5, characterized in that: The trigger plate (442) partially extends to a position above the matching plate (44); a first constraint rod (444) is fixedly installed in an array shape at equal intervals on the circumference of the wall of the active cavity (441); the other end of the first constraint rod (444) passes through the trigger plate (442) and is fixedly installed at another wall position of the active cavity (441); a second support tube (445) is fixedly connected between the pressure sensor of the first constraint rod (444) and the side of the trigger plate (442); and the second support tube (445) is movably sleeved on the side position of the first constraint rod (444).

7. The water seepage detection device for bridge engineering according to claim 6, characterized in that: The clamping block (452) is movably mounted inside the mounting cavity (451) and is clamped to an inner position of a recessed portion of the circular ring plate of the water blocking plate (45). The supporting block (453) is symmetrically fixedly connected between the side surface of the clamping block (452) and the wall surface of the mounting cavity (451). The wall surface of the mounting cavity (451) is provided with a first connecting groove (456).

8. The water seepage detection device for bridge engineering according to claim 7, characterized in that: The wall surface of the movable groove (46) is provided with a second connecting groove (461) penetrating the first blocking plate (421) and the second blocking plate (431); the movable rod (462) is movably mounted inside the movable groove (46); the third supporting tube (463) is fixedly connected between the side surface of the movable rod (462) and the wall surface of the movable groove (46); and the third supporting tube (463) is movably sleeved on the side surface of the movable rod (462); and the matching block (464) is fixedly mounted on the side surface of the movable rod (462) and the matching block (464) is movably arranged inside the movable groove (46).

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