Road and bridge transition section crack construction measuring device and method

Abstract

The invention relates to the technical field of road and bridge transition section crack construction measurement, in particular to a road and bridge transition section crack construction measurement device and method.The road and bridge transition section crack construction measurement device comprises a fixing unit and a measurement unit.The device is fixed to the initial end and the tail end of a crack through a first fixing support and a second fixing support, and telescopic guide rail frames are located on the two sides of the crack respectively; the movable frame drives the lifting frame and the adjusting support to move up and down, so that the detection probe is driven to move up and down, the detection probe ascends and descends at regular time, and it is ensured that the distances between detection points are the same. When the detection probe moves downwards to make contact with a bridge floor, the bridge floor is detected, and when the detection probe moves upwards, the surface of the detection probe is manually smeared with a coupling agent. In the whole process, detection personnel do not need to squat frequently for detection, the detection personnel do not need to measure detection points, the detection efficiency of the device is improved, the working comfort of the detection personnel is improved, a control drive does not need to be additionally arranged to control regular lifting of the detection probe, and the detection cost of the device is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of construction measurement of cracks in a road-bridge transition section, and in particular to a construction measurement device and method for cracks in a road-bridge transition section. Background Art

[0002] Measuring the crack depth in the transition section of a road to a bridge is a key link in maintaining the bridge and assessing its structural health. The depth of the cracks can reflect the degree of damage inside the structure. Shallow cracks may only be surface phenomena, while deep cracks may affect the main reinforcement or key load-bearing parts of the structure. In severe cases, it will weaken the overall stability of the structure. Therefore, a detector is needed to detect its depth. Currently, the penetration method is generally used to measure the crack depth. Only an ultrasonic probe is required. This probe is both a transmitter and a receiver. The probe emits ultrasonic pulses into the concrete. When the ultrasonic wave encounters a crack or other interface, it will be reflected. The reflected signal will be received by the same probe. By measuring the round-trip time of the ultrasonic wave and the propagation speed of the ultrasonic wave in the concrete, the depth of the crack can be calculated, thereby judging the health of the bridge.

[0003] The traditional detection method is generally to place the detection instrument on the ground, and then the inspector holds the instrument probe and places it on the left and right sides of the crack for detection. The inspector needs to squat frequently for detection and needs to measure between the detection points to ensure that the distance between the detection points is the same. Frequent distance measurement takes a lot of time, thereby reducing the efficiency of detection. Summary of the invention

[0004] In view of the above problems, the present application provides a device and method for measuring cracks in a transition section of a road bridge to solve the technical problems of low detection efficiency and physical damage to detection personnel in the related art. In order to achieve the above purpose, the present application provides the following technical solutions.

[0005] A first aspect of an embodiment of the present application provides a construction measurement device for cracks in a transition section of a road or bridge, comprising a fixed unit and a measuring unit, wherein the measuring unit is arranged on the fixed unit to measure cracks in the transition section of the road or bridge; the fixed unit comprises a fixed bracket 1, a rotating bracket is arranged on the fixed bracket 1, an adjusting bracket 1 is fixedly installed on the rear end of the rotating bracket, a retractable guide rail bracket is symmetrically arranged on the rear end of the adjusting bracket 1, an adjusting bracket 2 is fixedly connected to the ends of the retractable guide rail brackets, and a fixed bracket 2 is fixedly installed on the rear end of the adjusting bracket 2; the measuring unit comprises a mobile bracket, a mobile bracket is commonly arranged on the retractable guide rail bracket, a detector is fixedly installed on the mobile bracket, an adjustment bracket is symmetrically arranged on the mobile bracket, a detection probe is arranged at the lower end of the adjustment bracket, the surface of the detection probe is made of wear-resistant material, and the detection probe will not be worn during the fitting and moving process, the detection probe is electrically connected to the detection instrument, a lifting bracket is arranged on the mobile bracket, the lower end of the lifting bracket is connected to the adjustment bracket, and the lower end of the mobile bracket is fixedly connected to the detection probe.

[0006] According to an embodiment of the present invention, the fixing bracket comprises a rectangular block, a universal wheel is evenly fixedly installed on the lower end of the rectangular block, a threaded rod is rotatably connected to the rectangular block, a rectangular frame plate is connected to the threaded rod and located on the lower side of the rectangular block in a threaded connection manner, rubber suction cups are evenly fixedly installed on the lower end of the rectangular frame plate, the rubber suction cups are connected to each other, a connecting rod inserted into the rectangular block is fixedly installed on the upper end of the rectangular frame plate, a main control groove is opened at the left end of the rectangular frame plate, the main control groove is connected to adjacent rubber suction cups, and a rubber plug is connected in the main control groove in a threaded connection manner.

[0007] According to an embodiment of the present invention, the rotating frame includes a rotating circular plate, a rotating circular plate is rotatably connected to a fixed bracket, a control handle is rotatably connected to the middle of the fixed bracket, a cylindrical gear is fixedly installed at the lower end of the control handle, straight tooth grooves that mesh with the cylindrical gear are evenly opened at the outer end of the rotating circular plate, and an adjustment frame is fixedly installed at the rear end of the rotating circular plate.

[0008] According to an embodiment of the present invention, the adjustment frame includes a limit plate, the limit plate is fixedly installed on the rear end of the rotating circular plate, a guide groove is opened in the middle of the limit plate, and sliding blocks are connected to the guide groove in a symmetrical and sliding manner. A bidirectional screw is rotatably connected to the middle of the limit plate, and the left and right sides of the bidirectional screw are respectively connected to adjacent sliding blocks in a threaded manner.

[0009] According to an embodiment of the present invention, the retractable guide rail frame includes a guide groove column one, the rear ends of the sliding blocks on the left and right sides are fixedly installed with the guide groove column one, the middle part of the guide groove column one is connected with a compensation column in a sliding fit manner, the outer end of the compensation column is connected with a guide groove column two in a sliding fit manner, the guide groove column two is connected together with the adjustment frame two, and cylindrical springs are fixedly connected between the guide groove column one and the compensation column and between the compensation column and the guide groove column two.

[0010] According to an embodiment of the present invention, the movable frame includes a walking trolley, the middle part of the guide groove column is connected to the walking trolley in a sliding manner, the upper end of the walking trolley is fixedly installed with a rectangular column, the upper ends of the rectangular columns are jointly fixedly installed with a retractable moving plate, the moving plate is symmetrically fixedly installed with an adjustment bracket, the lower end of the adjustment bracket is fixedly installed with a magnet block 1, the middle part of the magnet block 1 is fixedly installed with an extrusion spring, the lower end of the extrusion spring is fixedly installed with a magnet block 2 with the same magnetic property as the magnet block 1, the lower end of the magnet block 2 is fixedly connected to the detection probe, and the upper end of the magnet block 2 is fixedly installed with a cylindrical rod penetrating the magnet block 1.

[0011] According to an embodiment of the present invention, the adjustment bracket includes a П-shaped plate, a П-shaped plate is fixedly installed symmetrically on the upper end of the movable plate, a retractable limit rod is fixedly installed on the lower end of the vertical section of the П-shaped plate away from the retractable guide rail frame, a fixed block is fixedly installed at the end of the limit rod, and the lower end of the fixed block is fixedly connected to a magnet block.

[0012] According to an embodiment of the present invention, the lifting frame includes a rotating column, and the driving wheels on the walking trolley away from the middle of the moving plate are fixedly installed with the rotating column, and a disc cam is fixedly installed on the rotating column, and the lower end of the disc cam is connected to a sliding block in a sliding fit manner. A right-angle plate is fixedly installed at the lower end of the vertical section of the side of the П-shaped plate away from the telescopic guide rail frame, and a guide rod penetrating the right-angle plate is fixedly installed at the lower end of the sliding block, and the lower end of the guide rod is fixedly connected to the fixed block.

[0013] According to an embodiment of the present invention, the method for using the above-mentioned road bridge transition section crack construction measurement device comprises the following steps:

[0014] S1. Fixing device: First, according to the cracks in the transition section of the road bridge, move the fixed bracket to the starting end of the crack, and adjust the rotating frame according to the direction of the crack so that the retractable guide frame is located on both sides of the crack.

[0015] S2, adjusting the length: at this time, fix one side of the device through the fixed bracket one, and then adjust the length of the telescopic guide frame to move the fixed bracket two to the end of the crack, and then fix the fixed bracket two.

[0016] S3, lifting contact: Then the lifting frame and the adjustment bracket are driven to move up and down by the moving frame, thereby driving the detection probe to move up and down, so that the detection probe is lifted and lowered regularly.

[0017] S4. Move upward and apply coupling agent: When the detection probe moves downward and contacts the bridge deck, the bridge deck is inspected. When the detection probe moves upward, coupling agent is manually applied to the surface of the detection probe.

[0018] It can be seen from the above technical solutions that the present invention has the following advantages:

[0019] 1. In the present invention, the device is fixed to the starting end and the end of the crack by fixing bracket one and fixing bracket two, and the retractable guide rail frames are respectively located on both sides of the crack. The lifting frame and the adjustment frame are driven to move up and down by the moving frame, thereby driving the detection probe to move up and down, so that the detection probe is lifted and lowered regularly to ensure that the distance between the detection points is the same. When the detection probe moves down and contacts the bridge deck, the bridge deck is detected. When the detection probe moves up, a coupling agent is manually applied to the surface of the detection probe. During the whole process, there is no need for the detection personnel to squat frequently for detection, and there is no need for the detection personnel to measure the detection points, thereby improving the detection efficiency of the device and the working comfort of the detection personnel. There is no need to set up a control drive to control the timing lifting and lowering of the detection probe, thereby reducing the detection cost of the device.

[0020] 2. In the present invention, the limiting plate is driven to rotate by rotating the circular plate, thereby driving the retractable guide rail frame to rotate, and the sliding block is driven to move by rotating the bidirectional screw, thereby changing the distance between the sliding blocks, so as to achieve the purpose of changing the distance between the retractable guide rail frames so that they are on both sides of the crack.

[0021] 3. In the present invention, the detection probe is driven to move on the retractable guide rail frame by the walking trolley. When the lifting frame drives the adjustment bracket to move to the lowest point, the extrusion spring drives the detection probe to be in close contact with the bridge deck through the magnetic repulsion force of the magnet block 1 and the magnet block 2, thereby ensuring the quality of the detection.

[0022] 4. In the present invention, the driving wheel on the traveling trolley during the movement drives the rotating column to rotate, thereby rotating the disc cam, and the disc cam drives the sliding block and the guide rod to reciprocate on the vertical plane, thereby driving the fixed block and the detection probe to move up and down, so as to achieve the purpose of equidistant detection of the bridge deck.

[0023] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by a crack construction measurement device and method for a road and bridge transition section provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1A schematic diagram of a main-view stereoscopic structure provided according to an embodiment of the present invention is shown.

[0026] Figure 2 A schematic diagram of a main viewing plane structure provided according to an embodiment of the present invention is shown.

[0027] Figure 3 Shows Figure 2 AA section view.

[0028] Figure 4 A schematic diagram of a left-view plane structure provided according to an embodiment of the present invention is shown.

[0029] Figure 5 Shows Figure 4 BB cross-sectional view.

[0030] Figure 6 Shows Figure 4 Cross-sectional view along CC direction.

[0031] Figure 7 A schematic diagram of a rear-view stereoscopic structure provided according to an embodiment of the present invention is shown.

[0032] Figure 8 Shows Figure 7 Enlarged view of N.

[0033] Fig. 9 The top plan view of the structure of the present invention when it is working is shown.

[0034] Fig.10 A workflow diagram of the present invention is shown.

[0035] The above drawings include the following reference numerals:

[0036] 1. Fixed unit; 11. Fixed bracket 1; 111. Rectangular block; 112. Universal wheel; 113. Threaded rod; 114. Rectangular frame plate; 115. Rubber suction cup; 116. Connecting rod; 117. Main control slot; 118. Rubber plug; 12. Rotating frame; 121. Rotating circular plate; 122. Control handle; 123. Cylindrical gear 1; 124. Straight tooth groove; 13. Adjusting frame 1; 131. Limiting plate; 132. Guide groove; 133. Sliding block; 134. Bidirectional screw; 14. Telescopic guide frame; 141. Guide groove column 1; 142. Compensation column; 143. Guide Slot column two; 144, cylindrical spring; 15, adjusting frame two; 16, fixed bracket two; 2, measuring unit; 21, moving frame; 211, walking trolley; 212, rectangular column; 213, moving plate; 214, magnet block one; 215, extrusion spring; 216, magnet block two; 217, cylindrical rod; 22, detector; 23, adjusting bracket; 231, П-shaped plate; 232, limit rod; 233, fixed block; 24, detection probe; 25, lifting frame; 251, rotating column; 252, disc cam; 253, sliding block; 254, right-angle plate; 255, guide rod. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0038] See also Figure 1A construction measuring device for cracks in a transition section of a road or bridge comprises a fixed unit 1 and a measuring unit 2. The measuring unit 2 is arranged on the fixed unit 1 to measure cracks in the transition section of the road or bridge. The fixed unit 1 comprises a fixed bracket 11, a rotating bracket 12 is arranged on the fixed bracket 11, an adjusting bracket 13 is fixedly installed on the rear end of the rotating bracket 12, a retractable guide frame 14 is symmetrically arranged on the rear end of the adjusting frame 13, an adjusting bracket 2 15 is fixedly connected to the end of the retractable guide frame 14, and a fixed bracket 2 16 is fixedly installed on the rear end of the adjusting frame 2 15; the measuring unit 2 comprises a mobile bracket 21, a mobile bracket 21 is commonly arranged on the retractable guide frame 14, a detector 22 is fixedly installed on the mobile bracket 21, an adjusting bracket 23 is symmetrically arranged on the mobile bracket 21, and a detection probe 24 is arranged at the lower end of each adjusting bracket 23. The surface of the detection probe 24 is made of a wear-resistant material, and the detection probe 24 will not be worn during the fitting and moving process. The head 24 is electrically connected to the detector 22, and a lifting frame 25 is arranged on the mobile frame 21. The lower end of the lifting frame 25 is connected to the adjustment bracket 23, and the lower end of the mobile frame 21 is fixedly connected to the detection probe 24; firstly, according to the crack in the transition section of the road bridge, the fixed bracket 11 is moved to the starting end of the crack, and the rotating frame 12 is adjusted according to the direction of the crack, so that the retractable guide rail frame 14 is respectively located on both sides of the crack, at this time, one side of the device is fixed by the fixed bracket 11, and then the length of the retractable guide rail frame 14 is adjusted to move the fixed bracket 2 16 to the end of the crack, at this time, the fixed bracket 2 16 is fixed, and then the lifting frame 25 and the adjustment bracket 23 are driven by the mobile frame 21 to move up and down, thereby driving the detection probe 24 to move up and down, so that the detection probe 24 is regularly lifted and lowered, when the detection probe 24 moves down and contacts the bridge deck, the bridge deck is detected, and when the detection probe 24 moves up, the coupling agent is manually applied to the surface of the detection probe 24.

[0039] See also Figure 6 The fixing bracket 11 includes a rectangular block 111, a universal wheel 112 is evenly fixedly installed at the lower end of the rectangular block 111, a threaded rod 113 is rotatably connected to the rectangular block 111, a rectangular frame plate 114 is connected to the threaded rod 113 and is located at the lower side of the rectangular block 111 in a threaded connection manner, a rubber suction cup 115 is evenly fixedly installed at the lower end of the rectangular frame plate 114, and the rubber suction cups 115 are connected to each other, and a connecting rod 116 inserted into the rectangular block 111 is fixedly installed on the upper end of the rectangular frame plate 114, and the rectangular frame plate A main control groove 117 is provided at the left end of 114, which is connected to the adjacent rubber suction cup 115, and a rubber plug 118 is connected to the main control groove 117 in a threaded manner; the rectangular block 111 is smoothly moved to the starting end of the crack on the bridge deck through the universal wheel 112, and at this time, the threaded rod 113 is rotated to drive the rectangular frame plate 114 to move downward, so that the rubber suction cup 115 is tightly attached to the bridge deck and attracted to fix the rectangular block 111. When the rectangular block 111 needs to be moved, the rubber plug 118 can be removed.

[0040] See also Figure 3 and Figure 6 The rotating frame 12 includes a rotating circular plate 121, the rotating circular plate 121 is rotatably connected to the fixed bracket 11, a control handle 122 is rotatably connected to the middle of the fixed bracket 11, a cylindrical gear 123 is fixedly installed at the lower end of the control handle 122, and straight tooth grooves 124 meshing with the cylindrical gear 123 are evenly opened at the outer end of the rotating circular plate 121, and an adjusting frame 13 is fixedly installed at the rear end of the rotating circular plate 121; the cylindrical gear 123 is driven to rotate by rotating the control handle 122, thereby driving the rotating circular plate 121 to rotate.

[0041] See also Figure 3 The adjusting frame 13 includes a limit plate 131, and the limit plate 131 is fixedly installed at the rear end of the rotating circular plate 121. A guide groove 132 is opened in the middle of the limit plate 131, and a sliding block 133 is connected to the guide groove 132 in a sliding cooperation manner in a left-right symmetrical manner. A bidirectional screw 134 is rotatably connected to the middle of the limit plate 131, and the left and right sides of the bidirectional screw 134 are respectively connected to the adjacent sliding blocks 133 in a threaded connection manner; the limit plate 131 is driven to rotate by rotating the circular plate 121, thereby driving the retractable guide frame 14 to rotate, and the sliding block 133 is driven to move by rotating the bidirectional screw 134, thereby changing the distance between the sliding blocks 133, so as to achieve the purpose of changing the distance between the retractable guide frames 14 so that they are located on both sides of the crack.

[0042] Continue reading Figure 3 The retractable guide rail frame 14 includes a guide groove column 141, and the rear ends of the sliding blocks 133 on the left and right sides are fixedly installed with the guide groove column 141. The middle part of the guide groove column 141 is connected with a compensation column 142 in a sliding fit manner, and the outer end of the compensation column 142 is connected with a guide groove column 2 143 in a sliding fit manner. The guide groove column 2 143 is connected to the adjustment frame 2 15 together, and a cylindrical spring 144 is fixedly connected between the guide groove column 141 and the compensation column 142, and between the compensation column 142 and the guide groove column 2 143; the cylindrical spring 144 is used to balance the forces between the guide groove column 141, the guide groove column 2 143 and the compensation column 142.

[0043] See also Figure 5 and Figure 8The movable frame 21 comprises a walking trolley 211, the middle of the guide slot column 141 is connected to the walking trolley 211 in a sliding manner, the upper end of the walking trolley 211 is fixedly installed with a rectangular column 212, the upper end of the rectangular column 212 is commonly fixedly installed with a retractable moving plate 213, the moving plate 213 is symmetrically fixedly installed with an adjustment bracket 23, the lower end of the adjustment bracket 23 is fixedly installed with a magnet block 214, the middle of the magnet block 214 is fixedly installed with an extrusion spring 215, and the lower end of the extrusion spring 215 is fixedly installed with a magnetic material having the same magnetic property as the magnet block 214. Stone block 216, the lower end of magnet block 216 is fixedly connected to the detection probe 24, and the upper end of magnet block 216 is fixedly installed with a cylindrical rod 217 that penetrates magnet block 1 214; the detection probe 24 is driven to move on the telescopic guide frame 14 by the walking trolley 211, and when the lifting frame 25 drives the adjustment bracket 23 to move to the lowest point, the extrusion spring 215 drives the detection probe 24 to be in close contact with the bridge deck through the magnetic repulsion force between magnet block 1 214 and magnet block 2 216, and when the lifting frame 25 drives the adjustment bracket 23 to move to the highest point, the detection probe 24 is away from the bridge deck.

[0044] Continue reading Figure 5 and Figure 8 The adjustment bracket 23 includes a П-shaped plate 231, and the П-shaped plate 231 is fixedly installed symmetrically on the upper end of the movable plate 213. A retractable limiting rod 232 is fixedly installed on the lower end of the vertical section of the П-shaped plate 231 away from the retractable guide rail frame 14. A fixed block 233 is fixedly installed at the end of the limiting rod 232, and the lower end of the fixed block 233 is fixedly connected to the magnet block 214; the fixed block 233 is limited and guided by the retractable limiting rod 232, and the movement of the fixed block 233 is prevented from interfering.

[0045] Continue reading again Figure 5 and Figure 8 The lifting frame 25 includes a rotating column 251, and the driving wheels on the walking trolley 211 away from the middle of the moving plate 213 are fixedly installed with the rotating column 251, and a disc cam 252 is fixedly installed on the rotating column 251. The lower end of the disc cam 252 is connected to a sliding block 253 in a sliding fit manner. A right-angle plate 254 is fixedly installed at the lower end of the vertical section of the side of the П-shaped plate 231 away from the telescopic guide frame 14, and a guide rod 255 penetrating the right-angle plate 254 is fixedly installed at the lower end of the sliding block 253, and the lower end of the guide rod 255 is fixedly connected to the fixed block 233; the driving wheel on the walking trolley 211 during the movement drives the rotating column 251 to rotate, so that the disc cam 252 rotates, and the disc cam 252 drives the sliding block 253 and the guide rod 255 to reciprocate on the vertical plane, thereby driving the fixed block 233 and the detection probe 24 to move up and down, so as to achieve the purpose of detecting the bridge deck.

[0046] See also Fig.10The method for using the above-mentioned road bridge transition section crack construction measurement device comprises the following steps:

[0047] S1. Fixing device: First, according to the cracks in the transition section of the road bridge, the fixing bracket 11 is moved to the starting end of the cracks, and the rotating frame 12 is adjusted according to the direction of the cracks, so that the retractable guide rail frame 14 is located on both sides of the cracks.

[0048] S2, adjusting the length: at this time, fix one side of the device through the fixing bracket 11, and then adjust the length of the telescopic guide frame 14 to move the fixing bracket 2 16 to the end of the crack, and then fix the fixing bracket 2 16.

[0049] S3, lifting contact: Then the lifting frame 25 and the adjustment bracket 23 are driven to move up and down by the moving frame 21, thereby driving the detection probe 24 to move up and down, so that the detection probe 24 is lifted and lowered regularly.

[0050] S4, moving upward and applying: when the detection probe 24 moves downward and contacts the bridge deck, the bridge deck is inspected, and when the detection probe 24 moves upward, coupling agent is manually applied to the surface of the detection probe 24 .

[0051] In the description of the present invention, it is necessary to understand that the terms "center", "middle", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "end", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] In addition, the terms "first", "second", "number one", "number two", "one", "two" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0053] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction measuring device for cracks in a road-bridge transition section, characterized in that , comprising a fixing unit (1) and a measuring unit (2), wherein the measuring unit (2) is arranged on the fixing unit (1) to measure cracks in a road-bridge transition section; The fixing unit (1) comprises a fixing bracket 1 (11), a rotating bracket (12) is arranged on the fixing bracket 1 (11), an adjusting bracket 1 (13) is fixedly mounted on the rear end of the rotating bracket (12), a retractable guide rail frame (14) is symmetrically arranged on the rear end of the adjusting bracket 1 (13), an adjusting bracket 2 (15) is fixedly connected to the ends of the retractable guide rail frame (14), and a fixing bracket 2 (16) is fixedly mounted on the rear end of the adjusting bracket 2 (15); The measuring unit (2) comprises a moving frame (21), the moving frame (21) being arranged on the retractable guide rail frame (14), a detector (22) being fixedly mounted on the moving frame (21), an adjustment bracket (23) being symmetrically arranged on the moving frame (21), a detection probe (24) being arranged at the lower end of each adjustment bracket (23), the detection probe (24) being electrically connected to the detector (22), a lifting frame (25) being arranged on the moving frame (21), the lower end of the lifting frame (25) being connected to the adjustment bracket (23), and the lower end of the moving frame (21) being fixedly connected to the detection probe (24). The lifting frame (25) comprises a rotating column (251), the rotating column (251) is symmetrically arranged on the movable frame (21), a disc cam (252) is fixedly mounted on the rotating column (251), the lower end of the disc cam (252) is connected to a sliding block (253) in a sliding matching manner, a right-angle plate (254) is fixedly mounted on the lower end of the vertical section of the side of the П-shaped plate (231) away from the telescopic guide rail frame (14), a guide rod (255) penetrating the right-angle plate (254) is fixedly mounted on the lower end of the sliding block (253), and the lower end of the guide rod (255) is fixedly connected to the fixed block (233).

2. A road bridge transition section crack construction measurement device according to claim 1, characterized in that: The fixing bracket 1 (11) comprises a rectangular block (111), a universal wheel (112) is evenly fixedly mounted on the lower end of the rectangular block (111), a threaded rod (113) is rotatably connected to the rectangular block (111), a rectangular frame plate (114) is connected to the threaded rod (113) and is located on the lower side of the rectangular block (111) in a threaded manner, a rubber suction cup (115) is evenly fixedly mounted on the lower end of the rectangular frame plate (114), the rubber suction cups (115) are connected to each other, a connecting rod (116) inserted into the rectangular block (111) is fixedly mounted on the upper end of the rectangular frame plate (114), a main control groove (117) is provided at the left end of the rectangular frame plate (114), the main control groove (117) is connected to an adjacent rubber suction cup (115), and a rubber plug (118) is connected to the main control groove (117) in a threaded manner.

3. A construction measuring device for cracks in a road and bridge transition section according to claim 1, characterized in that: The rotating frame (12) comprises a rotating circular plate (121), the rotating circular plate (121) is rotatably connected to the fixed bracket (11), the middle part of the fixed bracket (11) is rotatably connected to a control handle (122), a cylindrical gear (123) is fixedly mounted on the lower end of the control handle (122), straight tooth grooves (124) meshing with the cylindrical gear (123) are evenly arranged on the outer end of the rotating circular plate (121), and an adjusting frame (13) is fixedly mounted on the rear end of the rotating circular plate (121).

4. A construction measuring device for cracks in a road and bridge transition section according to claim 3, characterized in that: The first adjustment frame (13) comprises a limit plate (131), the limit plate (131) is fixedly mounted on the rear end of the rotating circular plate (121), a guide groove (132) is provided in the middle of the limit plate (131), a sliding block (133) is symmetrically connected to the inside of the guide groove (132) in a sliding matching manner, a bidirectional screw rod (134) is rotatably connected to the middle of the limit plate (131), and the left and right sides of the bidirectional screw rod (134) are respectively connected to adjacent sliding blocks (133) in a threaded manner.

5. A construction and measurement device for cracks in a road and bridge transition section according to claim 4, characterized in that: The telescopic guide rail frame (14) comprises a guide groove column 1 (141), the rear ends of the sliding blocks (133) on the left and right sides are fixedly mounted with the guide groove column 1 (141), the middle part of the guide groove column 1 (141) is connected to a compensation column (142) in a sliding fit manner, the outer end of the compensation column (142) is connected to a guide groove column 2 (143) in a sliding fit manner, the guide groove column 2 (143) is connected to the adjustment frame 2 (15), and cylindrical springs (144) are fixedly connected between the guide groove column 1 (141) and the compensation column (142) and between the compensation column (142) and the guide groove column 2 (143).

6. A construction measuring device for cracks in a road-bridge transition section according to claim 5, characterized in that: The moving frame (21) comprises a walking trolley (211), the middle part of the guide slot column (141) is connected to the walking trolley (211) in a sliding manner, a rectangular column (212) is fixedly mounted on the upper end of the walking trolley (211), a retractable moving plate (213) is fixedly mounted on the upper end of the rectangular column (212), an adjustment bracket (23) is fixedly mounted on the moving plate (213) symmetrically, a magnet block (214) is fixedly mounted on the lower end of the adjustment bracket (23), and the magnet block (214) is fixedly mounted on the upper end of the guide slot column (141). A squeezing spring (215) is fixedly installed in the middle of the moving plate (214), a second magnet block (216) having the same magnetic properties as the first magnet block (214) is fixedly installed at the lower end of the squeezing spring (215), the lower end of the second magnet block (216) is fixedly connected to the detection probe (24), a cylindrical rod (217) penetrating the first magnet block (214) is fixedly installed at the upper end of the second magnet block (216), and a rotating column (251) is fixedly installed on the driving wheel of the walking trolley (211) away from the middle of the moving plate (213).

7. A construction and measurement device for cracks in a road and bridge transition section according to claim 6, characterized in that: The adjustment bracket (23) comprises a P-shaped plate (231), the P-shaped plate (231) being fixedly mounted on the upper end of the movable plate (213) in a symmetrical manner, a retractable limiting rod (232) being fixedly mounted on the lower end of a vertical section on one side of the P-shaped plate (231) away from the retractable guide rail frame (14), a fixed block (233) being fixedly mounted on the end of the limiting rod (232), and the lower end of the fixed block (233) being fixedly connected to a magnet block 1 (214).

8. The construction and measurement device for cracks in a road and bridge transition section according to claim 6 is characterized in that: The lifting frame (25) comprises a rotating column (251), a driving wheel on the walking trolley (211) away from the middle of the moving plate (213) is fixedly mounted with the rotating column (251), a disc cam (252) is fixedly mounted on the rotating column (251), the lower end of the disc cam (252) is connected to a sliding block (253) in a sliding fit manner, a right-angle plate (254) is fixedly mounted on the lower end of a vertical section on one side of the П-shaped plate (231) away from the telescopic guide rail frame (14), a guide rod (255) penetrating the right-angle plate (254) is fixedly mounted on the lower end of the sliding block (253), and the lower end of the guide rod (255) is fixedly connected to the fixed block (233).

9. A construction and measurement device for cracks in a road and bridge transition section according to claim 1, characterized in that: The method for using the above-mentioned road bridge transition section crack construction measurement device comprises the following steps: S1, fixing device: first, according to the cracks in the transition section of the road bridge, the fixing bracket (11) is moved to the starting end of the crack, and the rotating frame (12) is adjusted according to the direction of the crack, so that the retractable guide rail frame (14) is located on both sides of the crack; S2, length adjustment: at this time, fix one side of the device by fixing the first bracket (11), and then adjust the length of the telescopic guide rail frame (14) so ​​that the second bracket (16) moves to the end of the crack, and then fix the second bracket (16); S3, lifting contact: the lifting frame (25) and the adjusting bracket (23) are then driven by the moving frame (21) to move up and down, thereby driving the detection probe (24) to move up and down, so that the detection probe (24) is lifted and lowered regularly; S4, moving upward and applying: when the detection probe (24) moves downward and contacts the bridge deck, the bridge deck is inspected, and when the detection probe (24) moves upward, coupling agent is manually applied to the surface of the detection probe (24).

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