Concrete segment flaw detection device

Abstract

The utility model discloses a concrete segment flaw detection device, which relates to the field of concrete segments, and comprises a base, the top of the base is provided with a first support column and a second support column, one side of the first support column is connected with a cross beam, the bottom end of a connecting block is provided with two groups of fixing blocks, one side of each fixing block is connected with a rotating column, and the rotating column is connected with a rotating shaft. A detector is installed at the bottom of the rotating column, and four pulleys are installed at the bottom of the detector. The first supporting column is moved to one side of a segment to-be-detected area, then the handle is rotated, the threaded rod drives the cross beam to descend through the limiting block, and when the pulley makes contact with the outer wall of the segment, the detector can be turned over and adjusted due to different radians of the outer wall of the segment, so that the segment is detected. Four groups of pulleys at the bottom of the detector are all in contact with the outer wall of the duct piece, and the contraction hydraulic cylinder pushes the detector to slide on the outer wall of the duct piece for detection through the moving plate, so that the detection rate of personnel on the duct piece by using the detector is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of concrete pipe segments, specifically a flaw detection device for concrete pipe segments. Background Technology

[0002] Concrete segments are precast concrete components used to construct underground tunnels, subways, and other underground engineering projects. They are usually arc-shaped or ring-shaped and are assembled to form a robust tunnel lining structure. Concrete segments are widely used in urban subway construction to provide stable support and protection for subway lines and ensure that tunnels can be used safely for a long time under complex geological conditions.

[0003] A flaw detection device is a device used to detect internal defects in materials or components. Its principle is based on various physical phenomena, such as ultrasound and radiation. During the production process of concrete tunnel segments, defects such as cracks, voids, and looseness may occur inside due to factors such as the quality of raw materials, mixing process, vibration conditions, and collisions during transportation and installation. If these defects are not detected in time, they may gradually develop and expand under long-term stress and environmental effects after the tunnel segments are put into use, eventually affecting the stability and safety of the tunnel structure. Therefore, before the concrete tunnel segments are used, it is necessary to conduct a comprehensive inspection using a flaw detection device to ensure the smooth construction and long-term stable operation of underground projects.

[0004] Currently, during the inspection of concrete pipe segments, personnel need to manually move the flaw detection device on the outer wall of the segment for inspection. Since the inspection area of ​​the segment is large, it takes a long time for personnel to move the flaw detection device, resulting in low efficiency of manual flaw detection. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a concrete segment flaw detection device to solve the technical problem of low efficiency in inspecting concrete segments by manually pushing the flaw detection device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a concrete segment flaw detection device, comprising a base, a first support column and a second support column being provided on the top of the base, a crossbeam being connected to one side of the first support column, limit blocks being fixed on both sides of the crossbeam, a threaded rod being connected to one end of the limit block, a second bevel gear being installed at the end of the threaded rod, a first bevel gear being connected to one side of the second bevel gear, a handle being provided on one side of the first bevel gear, a connecting block being connected to the bottom of the crossbeam, two sets of fixing blocks being provided at the bottom of the connecting block, a rotating column being connected to one side of the fixing block, a detector being installed at the bottom of the rotating column, and four pulleys being installed at the bottom of the detector.

[0007] By adopting the above technical solution, the problem of low efficiency in inspecting concrete segments by manually pushing the flaw detection device is solved. After the segment is placed on the fixed frame on the base, the first support column is moved to one side of the segment to be inspected. Then, the handle is turned so that the threaded rod drives the crossbeam to descend through the limit block. When the pulley contacts the outer wall of the segment, the detector will flip and adjust due to the different curvature of the outer wall of the segment, so that all four sets of pulleys at the bottom of the detector contact the outer wall of the segment. Then, the hydraulic cylinder is retracted and the moving plate pushes the detector to slide and inspect the segment on the outer wall, thereby reducing the workload of personnel pushing the detector and thus speeding up the inspection rate of the segment by personnel using the detector.

[0008] The present invention is further configured such that four sets of fixing brackets are fixed on the top of the base, and a tube segment is installed on the top of the fixing brackets.

[0009] Preferably, the base uses four sets of fixing brackets to fix the tube segments in place, preventing the tube segments from sliding or shifting during the testing process.

[0010] The present invention is further configured such that rollers are provided at the bottom of both the first support column and the second support column, and two sets of sliding grooves are installed at the top of the base.

[0011] Preferably, the first and second support columns reduce the friction between themselves and the base surface by means of rollers installed at the bottom, thereby facilitating the movement of the first and second support columns by personnel. In addition, the sliding groove limits the movement of the first and second support columns to prevent them from deviating during the movement.

[0012] The present invention is further configured such that a retractable hydraulic cylinder is installed inside the crossbeam, the end of the retractable hydraulic cylinder is connected to a movable plate, and the bottom of the movable plate is connected to a connecting block.

[0013] Preferably, the retractable hydraulic cylinder, through the connection between the movable plate and the connecting block, pushes the detector to slide and detect on the outer wall of the segment, thereby reducing the workload of personnel using the detector to inspect the segment.

[0014] The present invention is further configured such that a sensor is installed at the bottom of the detector, and the effective detection distance of the sensor is greater than the diameter of the pulley.

[0015] Preferably, when the pulley at the bottom of the detector is in full contact with the outer wall surface of the tube segment, the detector detects the internal structure of the tube segment through the sensor.

[0016] The present invention is further configured such that a connecting plate is connected to the top of the fixing block, and two sets of springs are provided on the top of the connecting plate.

[0017] Preferably, after the pulley contacts the outer wall of the segment, the crossbeam continues to descend a certain distance. The detector pushes the fixed block upward through the rotating column, and the fixed block pushes the contraction spring through the connecting plate, thereby ensuring that the detector can maintain a fixed distance from the segment and avoiding personnel from misjudging that the pulley has contacted the outer wall surface of the segment. This ensures that when the detector is detecting the segment, the sensor at the bottom of the detector can maintain an effective detection distance from the segment.

[0018] The present invention is further provided with protrusions on both sides of the connecting plate and slots inside the connecting block.

[0019] Preferably, during the movement of the moving plate, the connecting block limits the movement of the moving plate through the protrusion, so that the connecting plate can move in the vertical direction.

[0020] The present invention is further configured such that a limiting groove is provided inside the second support column, and a limiting rod is installed inside the limiting groove, and a set of the limiting blocks are sleeved on the outer wall of the limiting rod.

[0021] Preferably, when the crossbeam moves up and down, the second support column limits the crossbeam through the limiting rod and the limiting groove to prevent the crossbeam from tilting during the movement.

[0022] In summary, the present invention has the following main advantages:

[0023] 1. This utility model solves the problem of low efficiency in manually pushing the flaw detection device to inspect concrete pipe segments by setting up a base, a first support column, a crossbeam, a retractable hydraulic cylinder, a threaded rod, and a detector. After the pipe segment is placed on the fixed frame on the base, the first support column is moved to one side of the area to be inspected on the pipe segment. Then, the handle is turned so that the threaded rod drives the crossbeam to descend through the limit block. When the pulley contacts the outer wall of the pipe segment, the detector will flip and adjust due to the different curvature of the outer wall of the pipe segment, so that all four sets of pulleys at the bottom of the detector contact the outer wall of the pipe segment. Then, the retractable hydraulic cylinder pushes the detector to slide and inspect on the outer wall of the pipe segment through the moving plate, thereby reducing the workload of personnel pushing the detector and thus speeding up the inspection rate of the pipe segment by personnel using the detector.

[0024] 2. This utility model, by setting a connecting plate, a fixing block, a rotating column, and a spring, ensures that when the pulley contacts the outer wall of the tube segment, the crossbeam will continue to descend a certain distance. The detector presses the fixing block upward through the rotating column, and the fixing block presses the spring through the connecting plate, thereby ensuring that the detector can maintain a fixed distance from the tube segment. This avoids personnel misjudging that the pulley has contacted the outer wall surface of the tube segment, and enables the sensor at the bottom of the detector to maintain an effective detection distance from the tube segment when the detector is detecting it. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall device of this utility model;

[0026] Figure 2 This is a partial bottom view of the device of this utility model;

[0027] Figure 3 This is a cross-sectional view of the first support column of this utility model;

[0028] Figure 4 This is an overall sectional view of the crossbeam of this utility model;

[0029] Figure 5 This is a structural diagram of the internal structure of the connecting block of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Base; 101. Fixing frame; 2. First support column; 201. Crossbeam; 202. Second support column; 203. Roller; 204. Slide groove; 205. Limiting block; 206. Limiting rod; 207. Limiting groove; 3. Tube segment; 4. Retractable hydraulic cylinder; 401. Moving plate; 5. Handle; 501. First bevel gear; 502. Second bevel gear; 503. Threaded rod; 6. Detector; 601. Sensor; 602. Pulley; 603. Rotating column; 7. Connecting block; 701. Fixing block; 702. Connecting plate; 703. Protrusion; 704. Slot; 705. Spring. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The embodiments of this utility model will be described below based on its overall structure.

[0034] Please see Figure 1 — Figure 5The system includes a base 1, with a first support column 2 and a second support column 202 on the top of the base 1. A crossbeam 201 is connected to one side of the first support column 2. Limiting blocks 205 are fixed to both sides of the crossbeam 201. A threaded rod 503 is connected to one end of the limiting block 205. A second bevel gear 502 is installed at the end of the threaded rod 503. A first bevel gear 501 is connected to one side of the second bevel gear 502. A handle 5 is provided on one side of the first bevel gear 501. A connecting block 7 is connected to the bottom of the crossbeam 201. Two sets of fixing blocks 701 are provided at the bottom of the connecting block 7. A rotating column 603 is connected to one side of the fixing block 701. A detector 6 is installed at the bottom of the rotating column 603. Four pulleys 602 are installed at the bottom of the detector 6. This solves the problem of personnel passing through by hand. To address the issue of low efficiency in inspecting concrete segments using a moving flaw detection device, after the segment 3 is placed on the fixed frame 101 on the base 1, the first support column 2 is moved to one side of the area to be inspected on the segment 3. Then, the handle 5 is turned, causing the threaded rod 503 to drive the crossbeam 201 to descend through the limit block 205. When the pulley 602 contacts the outer wall of the segment 3, the detector 6 will flip and adjust due to the different curvature of the outer wall of the segment 3, so that all four sets of pulleys 602 at the bottom of the detector 6 contact the outer wall of the segment 3. Then, the hydraulic cylinder 4 is retracted, and the moving plate 401 pushes the detector 6 to slide and inspect on the outer wall of the segment 3, thereby reducing the workload of personnel moving the detector 6 and thus speeding up the inspection rate of the segment 3 by personnel using the detector 6.

[0035] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The base 1 has four sets of fixing brackets 101 fixed on top, and the tube segment 3 is installed on the top of the fixing brackets 101. The base 1 fixes the tube segment 3 in place by the four sets of fixing brackets 101 to prevent the tube segment 3 from sliding during the inspection process.

[0036] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 and Figure 2 The bottom of the first support column 2 and the second support column 202 are both provided with rollers 203, and the top of the base 1 is equipped with two sets of sliding grooves 204. The first support column 2 and the second support column 202 reduce the friction between themselves and the surface of the base 1 by means of the rollers 203 installed at the bottom, thereby facilitating the movement of the first support column 2 and the second support column 202 by personnel. The sliding grooves 204 limit the movement of the first support column 2 and the second support column 202 to prevent the first support column 2 and the second support column 202 from deviating during the movement.

[0037] For details regarding the above embodiments, please refer to [link / reference]. Figure 4A retractable hydraulic cylinder 4 is installed inside the crossbeam 201. A movable plate 401 is connected to the end of the retractable hydraulic cylinder 4, and the bottom of the movable plate 401 is connected to the connecting block 7. The retractable hydraulic cylinder 4 pushes the detector 6 to slide and detect on the outer wall of the tube segment 3 through the connection between the movable plate 401 and the connecting block 7, thereby reducing the workload of personnel using the detector 6 to detect the tube segment 3.

[0038] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 A sensor 601 is installed at the bottom of the detector 6, and the effective detection distance of the sensor 601 is greater than the diameter of the pulley 602. When the pulley 602 at the bottom of the detector 6 is in complete contact with the outer wall surface of the tube segment 3, the detector 6 detects the internal structure of the tube segment 3 through the sensor 601.

[0039] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 The top of the fixed block 701 is connected to the connecting plate 702, and the top of the connecting plate 702 is equipped with two sets of springs 705. When the pulley 602 contacts the outer wall of the tube segment 3, the crossbeam 201 will continue to descend a certain distance. The detector 6 presses the fixed block 701 upward through the rotating column 603. The fixed block 701 compresses the springs 705 through the connecting plate 702, thereby ensuring that the detector 6 can maintain a fixed distance from the tube segment 3, avoiding personnel from misjudging that the pulley 602 has contacted the outer wall surface of the tube segment 3. This ensures that when the detector 6 detects the tube segment 3, the sensor 601 at the bottom of the detector 6 can maintain an effective detection distance from the tube segment 3.

[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 The connecting plate 702 has protrusions 703 on both sides, and the connecting block 7 has a slot 704 inside. During the movement of the connecting plate 702, the connecting block 7 limits the movement of the connecting plate 702 through the protrusions 703, so that the connecting plate 702 can move in the vertical direction.

[0041] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 The second support column 202 is provided with a limiting groove 207 inside, and a limiting rod 206 is installed inside the limiting groove 207. A set of limiting blocks 205 are sleeved on the outer wall of the limiting rod 206. When the crossbeam 201 moves up and down, the second support column 2 limits and controls the crossbeam 201 through the limiting rod 206 and the limiting groove 207 to prevent the crossbeam 201 from tilting during the movement.

[0042] In practical operation: After the tube segment 3 is placed on the fixing frame 101 on the base 1, the first support column 2 is pushed, causing it to move to one side of the area to be detected on the tube segment 3. Then, the handle 5 is rotated, which drives the first bevel gear 501 to rotate. The first bevel gear 501 drives the threaded rod 503 to rotate through the second bevel gear 502 meshing with it. The threaded rod 503 drives the crossbeam 201 to move downward in the vertical direction through the limiting block 205. During the descent of the crossbeam 201, the pulley 602 at the bottom of the detector 6 first contacts the outer wall of the tube segment 3. Since the detector 6 is connected to the bottom of the connecting block 7 by the rotating column 603 at the top, the first support column 202 moves downward through the second bevel gear 502 meshing with it. The fixed block 701 is movably connected. When the pulley 602 contacts the outer wall of the tube segment 3, the crossbeam 201 will continue to descend a certain distance. The detector 6 presses the fixed block 701 upward through the rotating column 603. The fixed block 701 presses the contraction spring 705 through the connecting plate 702, thereby ensuring that the detector 6 can maintain a fixed distance from the tube segment 3. During the contraction of the spring 705, the detector 6 will flip and adjust due to the different curvature of the outer wall of the tube segment 3, so that all four sets of pulleys 602 at the bottom of the detector 6 contact the outer wall of the tube segment 3. Then, the contraction hydraulic cylinder 4 is connected to the connecting block 7 through the moving plate 401, thereby pushing the detector 6 to slide and detect on the outer wall of the tube segment 3.

[0043] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A concrete segment flaw detection device, comprising a base (1), characterized in that: The base (1) is provided with a first support column (2) and a second support column (202) at its top. A crossbeam (201) is connected to one side of the first support column (2). A retractable hydraulic cylinder (4) is installed inside the crossbeam (201). A movable plate (401) is connected to the end of the retractable hydraulic cylinder (4), and the bottom of the movable plate (401) is connected to the connecting block (7). Limiting blocks (205) are fixed on both sides of the crossbeam (201). A threaded rod (503) is connected to one end of the limiting block (205). A second bevel gear (502) is installed at the end of the threaded rod (503). 02) is connected to a first bevel gear (501) on one side, and a handle (5) is provided on one side of the first bevel gear (501). A connecting block (7) is connected to the bottom of the crossbeam (201). Two sets of fixing blocks (701) are provided at the bottom of the connecting block (7). A connecting plate (702) is connected to the top of the fixing block (701). Two sets of springs (705) are provided at the top of the connecting plate (702). A rotating column (603) is connected to one side of the fixing block (701). A detector (6) is installed at the bottom of the rotating column (603). Four pulleys (602) are installed at the bottom of the detector (6).

2. The concrete segment flaw detection device according to claim 1, characterized in that: The base (1) has four sets of fixing brackets (101) fixed on top, and the fixing brackets (101) have tube segments (3) installed on top.

3. The concrete segment flaw detection device according to claim 1, characterized in that: The bottom of the first support column (2) and the second support column (202) are both provided with rollers (203), and the top of the base (1) is provided with two sets of sliding grooves (204).

4. The concrete segment flaw detection device according to claim 1, characterized in that: The bottom of the detector (6) is equipped with a sensor (601), and the effective detection distance of the sensor (601) is greater than the diameter of the pulley (602).

5. A concrete segment flaw detection device according to claim 1, characterized in that: The connecting plate (702) has protrusions (703) on both sides, and the connecting block (7) has a slot (704) inside.

6. The concrete segment flaw detection device according to claim 1, characterized in that: The second support column (202) is provided with a limiting groove (207) inside, and a limiting rod (206) is installed inside the limiting groove (207). A set of limiting blocks (205) are sleeved on the outer wall of the limiting rod (206).

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