Device for detecting grouting compactness of prestressed duct of bridge

Abstract

The utility model relates to the technical field of bridge detection, in particular to a device for detecting the grouting compactness of a prestressed duct of a bridge. Comprising a cylinder, circular plates are fixedly mounted at the two ends of the cylinder, a mounting cover is fixedly mounted on one side of one circular plate, a sliding plate is slidably mounted in the mounting cover, a pressure detection assembly is arranged on one side of the sliding plate, an insertion rod is arranged on the pressure detection assembly, one end of the insertion rod extends out of the mounting cover, and a camera and a lighting lamp are arranged on the mounting cover. Two electric cylinders are arranged in the mounting cover, output rods of the electric cylinders are fixed to the sliding plate, four first grooves distributed in an annular array mode are formed in the outer wall of the circular plate, and ejector rods are slidably mounted in the first grooves. According to the bridge prestressed duct grouting compactness detection device, the bridge prestressed duct grouting compactness detection device can be stably fixed in a duct through a simple anti-skid supporting structure, the problem that the detection device slips in the grouting compactness detection process can be effectively avoided, and then the accuracy of detection data can be effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge detection technical field, concretely is a kind of for bridge prestressed duct pressure grouting compactness detection device. BACKGROUND

[0002] Bridge prestressed duct is the key part in bridge engineering, mainly used for post-tensioned prestressed concrete structure, by reserving duct in concrete component, so as to pass into prestressed tendon and carry out tensioning after concrete reaches certain strength, to improve the carrying capacity and durability of bridge, after pressure grouting to prestressed duct needs to carry out compactness detection, to ensure the quality of pressure grouting, the compactness of current bridge prestressed duct pressure grouting detection is generally detected by the way of resistance encountered when test detection rod is inserted into pressure grouting, which can effectively detect the compactness of pressure grouting.

[0003] However, the existing bridge prestressed duct pressure grouting compactness detection device lacks fixing and anti-slip structure, which leads to the problem of easy slippage of the bridge prestressed duct pressure grouting compactness detection device in the prestressed duct, which is not conducive to ensuring the accuracy of pressure grouting compactness detection. UTILITY MODEL CONTENT

[0004] In view of the above problems, the purpose of the utility model is to provide a bridge prestressed duct pressure grouting compactness detection device, which can stably fix the bridge prestressed duct pressure grouting compactness detection device in the duct, effectively avoid the problem of slippage of the detection device during detection of pressure grouting compactness, effectively ensure the accuracy of detection data, and solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model adopts the technical scheme: a bridge prestressed duct pressure grouting compactness detection device, comprising a cylinder, both ends of the cylinder are fixedly installed with circular plates, one side of one of the circular plates is fixedly installed with a mounting cover, a sliding plate is slidably installed in the mounting cover, a pressure detection assembly is arranged on one side of the sliding plate, an insertion rod is arranged on the pressure detection assembly, one end of the insertion rod extends out of the mounting cover, a camera and a light are arranged on the mounting cover, two electric cylinders are arranged in the mounting cover, the output rods of the electric cylinders are fixed on the sliding plate, four first grooves are arranged on the outer wall of the circular plate in a ring array, a jack is slidably installed in the first grooves, a lead screw is threadedly installed on the jack, a first cavity is arranged on the circular plate, one end of the lead screw extends into the first cavity and is provided with a first bevel gear, a circular rod is rotatably installed in the cylinder, three second bevel gears are arranged on the circular rod, the first bevel gear is engaged with the corresponding second bevel gear, a first motor is arranged in the cylinder, a third bevel gear is arranged on the output shaft of the first motor, and the third bevel gear is engaged with the corresponding second bevel gear.

[0006] In order to facilitate the detection device to walk by itself:

[0007] As a further improvement of the above technical solution: the circular plate further comprises a plurality of second grooves, a rotating rod is rotatably installed in the second grooves, a gear and a fourth bevel gear are fixedly sleeved on the rotating rod, one side of the gear extends to the outside of the corresponding second groove, a plurality of second cavities are formed on the circular plate, a second motor is arranged in the second cavity, the output shaft of the second motor extends into the corresponding second groove and is provided with a fifth bevel gear, and the fifth bevel gear is engaged with the corresponding fourth bevel gear.

[0008] The improved beneficial effect is: by thus setting, it is convenient to move the detection device, facilitate the detection device to walk by itself, and bring great convenience to the bridge prestressed hole grouting compactness detection work.

[0009] In order to facilitate the limiting of the ejector rod:

[0010] As a further improvement of the above technical solution: a limiting groove is formed on the inner wall of the first groove on both sides, a limiting block is slidably installed in the limiting groove, the limiting block is fixed on the ejector rod, and a plurality of anti-skid teeth are arranged on the ejector rod.

[0011] The improved beneficial effect is: by setting the limiting groove and the limiting block, it is convenient to limit the ejector rod.

[0012] In order to facilitate the support and limiting of the lead screw:

[0013] As a further improvement of the above technical solution: a first through hole is penetrated between the first cavity and the corresponding first groove, the lead screw is rotatably penetrated through the first through hole, a threaded groove is formed at one end of the ejector rod, and the lead screw is threadedly installed in the threaded groove.

[0014] The improved beneficial effect is: by setting the first through hole, it is convenient to support and limit the lead screw.

[0015] In order to facilitate the support and limiting of the circular rod:

[0016] As a further improvement of the above technical solution: two vertical plates are arranged in the cylinder, the circular rod is rotatably penetrated through the two vertical plates, an inspection opening is penetrated through the inner wall of one side of the cylinder, and a cover plate is slidably installed in the inspection opening.

[0017] The improved beneficial effect is: by setting the vertical plate, it is convenient to support and limit the circular rod.

[0018] In order to facilitate the plug rod to enter and exit the installation cover:

[0019] As a further improvement of the above technical solution: a second through hole is formed through the inner wall of one side of the mounting cover, the insertion rod is slidably inserted through the second through hole, and a handle and a rope connecting lifting lug are arranged on the circular plate away from the mounting cover.

[0020] The improvement has the beneficial effect that the second through hole is arranged to facilitate the insertion and removal of the insertion rod from the mounting cover.

[0021] In order to facilitate power supply to the detection device:

[0022] As a further improvement of the above technical solution: a plurality of mounting boxes are arranged on the cylinder, a storage battery is arranged in each mounting box, and the pressure detection assembly, the camera, the illuminating lamp, the electric cylinder, the first motor and the second motor are respectively electrically connected to the corresponding storage battery through wires.

[0023] The improvement has the beneficial effect that the detection device is facilitated to be powered.

[0024] In order to facilitate the limiting of the rotating rod:

[0025] As a further improvement of the above technical solution: mounting grooves are formed in the inner walls of the two sides of the second groove, and the two ends of the rotating rod are respectively rotatably mounted in the corresponding mounting grooves.

[0026] The improvement has the beneficial effect that the mounting grooves are arranged to facilitate the limiting of the rotating rod.

[0027] The bridge prestressed hole grouting compactness detection device has the beneficial effect that the simple anti-skid supporting structure can stably fix the bridge prestressed hole grouting compactness detection device in the hole, effectively avoids the problem of slippage of the detection device during detection of the grouting compactness, and effectively guarantees the accuracy of the detection data. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a front view of the structure of the utility model;

[0029] Figure 2 is an enlarged structure diagram of part A of the utility model; Figure 1

[0030] Figure 3 is an enlarged structure diagram of part B of the utility model; Figure 1

[0031] Figure 4 is a side view of the structure of the utility model;

[0032] Figure 5 is an enlarged structure diagram of part C of the utility model; Figure 4 ​​​

[0033] Figure 6 This is a three-dimensional sectional view of the top rod in this utility model.

[0034] In the diagram: 1. Cylinder; 2. Circular plate; 3. Mounting cover; 4. Slide plate; 5. Pressure detection component; 6. Insert rod; 7. Camera; 8. Lighting lamp; 9. Electric cylinder; 10. First groove; 11. Push rod; 12. Lead screw; 13. First chamber; 14. First bevel gear; 15. Circular rod; 16. Second bevel gear; 17. First motor; 18. Third bevel gear; 19. Second groove; 20. Rotating rod; 21. Gear; 22. Fourth bevel gear; 23. Second chamber; 24. Second motor; 25. Fifth bevel gear; 26. Mounting box; 27. Battery. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0036] like Figures 1-6As shown, a device for detecting the grouting density of prestressed ducts in bridges includes a cylinder 1. Circular plates 2 are fixedly installed at both ends of the cylinder 1. A mounting cover 3 is fixedly installed on one side of one of the circular plates 2. A sliding plate 4 is slidably installed inside the mounting cover 3. A pressure detection component 5 is provided on one side of the sliding plate 4. An insertion rod 6 is provided on the pressure detection component 5, with one end of the insertion rod 6 extending outside the mounting cover 3. A camera 7 and a lighting lamp 8 are provided on the mounting cover 3. Two electric cylinders 9 are provided inside the mounting cover 3. The output rods of the electric cylinders 9 are fixed to the sliding plate 4. Four first grooves 10 arranged in a circular array are formed on the outer wall of the circular plate 2. A top rod 11 is slidably installed in each of the first grooves 10, and a threaded wire is installed on the top rod 11. The screw 12 has a first chamber 13 on the circular plate 2. One end of the screw 12 extends into the first chamber 13 and is equipped with a first bevel gear 14. A circular rod 15 is rotatably installed inside the cylinder 1. Three second bevel gears 16 are provided on the circular rod 15. The first bevel gear 14 meshes with the corresponding second bevel gear 16. A first motor 17 is provided inside the cylinder 1. A third bevel gear 18 is provided on the output shaft of the first motor 17. The third bevel gear 18 meshes with the corresponding second bevel gear 16. Through a simple anti-slip support structure, the bridge prestressed duct grouting density testing device can be firmly fixed in the duct, effectively preventing slippage of the testing device during the grouting density testing process, thereby effectively ensuring... To improve the accuracy of the detection data, the circular plate 2 further includes multiple second grooves 19. A rotating rod 20 is rotatably mounted within each second groove 19. A gear 21 and a fourth bevel gear 22 are fixedly sleeved on the rotating rod 20. One side of the gear 21 extends outside the corresponding second groove 19. Multiple second chambers 23 are formed on the circular plate 2. A second motor 24 is installed within each second chamber 23. The output shaft of the second motor 24 extends into the corresponding second groove 19 and is equipped with a fifth bevel gear 25. The fifth bevel gear 25 meshes with the corresponding fourth bevel gear 22. This arrangement facilitates the movement of the detection device, enabling it to move independently and greatly simplifying the detection of grout compaction density in bridge prestressed ducts. Limiting grooves are provided on both inner walls of the groove 10. Limiting blocks are slidably installed in the limiting grooves and fixed to the top rod 11. The top rod 11 is provided with multiple anti-slip teeth. By setting the limiting grooves and limiting blocks, it is convenient to limit the movement of the top rod 11. A first through hole is provided between the first chamber 13 and the corresponding first groove 10. The lead screw 12 rotates through the first through hole. A threaded groove is provided at one end of the top rod 11. The lead screw 12 is threadedly installed in the threaded groove. By setting the first through hole, it is convenient to support and limit the movement of the lead screw 12. Two vertical plates are provided inside the cylinder 1. The round rod 15 rotates through the two vertical plates. An inspection port is provided on one inner wall of the cylinder 1. A cover plate is slidably installed in the inspection port.By setting a vertical plate, the round rod 15 can be easily supported and limited. A second through hole is provided on one inner wall of the mounting cover 3, through which the insertion rod 6 slides. A handle and rope connection lug are provided on the round plate 2 away from the mounting cover 3. The second through hole facilitates the insertion rod 6 entering and exiting the mounting cover 3. Multiple mounting boxes 26 are provided on the cylinder 1, each containing a battery 27. The pressure detection component 5, camera 7, lighting lamp 8, electric cylinder 9, first motor 17, and second motor 24 are electrically connected to their respective batteries 27 via wires. This arrangement facilitates power supply to the detection device. Mounting slots are provided on both inner walls of the second groove 19, and the two ends of the rotating rod 20 are rotatably mounted in their respective mounting slots. The mounting slots facilitate the limiting of the rotating rod 20.

[0037] The working principle of this utility model is as follows: In use, the device is first inserted into the prestressed duct of the bridge. Then, a rope is tied to the rope connection lug. Next, the lighting lamp 8, camera 7, and multiple second motors 24 are turned on. The lighting lamp 8 illuminates the duct, and the camera 7 monitors the interior of the duct. The output shaft of the second motor 24 rotates the fifth bevel gear 25, which drives the fourth bevel gear 22 to rotate. The fourth bevel gear 22 drives the rotating rod 20 and gear 21 to rotate. As the gear 21, which is in contact with the inner wall of the duct, rotates, it moves the entire device to a suitable position within the duct. This design facilitates the movement of the detection device and allows it to move independently, greatly simplifying the grouting density testing of the prestressed duct of the bridge. Then, the first motor 17 is turned on. The output shaft of the first motor 17 drives the third bevel gear 18 to rotate, which in turn drives the corresponding... The second bevel gear 16 rotates, driving the round rod 15 to rotate. The round rod 15 then drives the second bevel gears 16 at both ends to rotate, causing multiple first bevel gears 14 to rotate. Simultaneously, the first bevel gears 14 drive the corresponding lead screw 12 to rotate. The lead screw 12 drives the top rod 11 to slide out of the corresponding first groove 10 until the top rod presses against the inner wall of the duct, thus supporting the detection device at the central axis of the duct and fixing the detection device. Then, the two electric cylinders 9 are activated, pushing the slide plate 4 to slide laterally within the mounting cover 3. The slide plate 4 drives the insertion rod 6 to insert into the grouting. The pressure detection component 5 detects the pressure. Through this setup, the bridge prestressed duct grouting density detection device can be firmly fixed in the duct, effectively preventing the detection device from slipping during the grouting density detection process, thereby ensuring the accuracy of the detection data.

[0038] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A device for detecting the density of bridge prestressed duct grouting, comprising a cylinder (1), characterized in that: Both ends of the cylinder (1) are fixedly installed with round plates (2), one side of one of the round plates (2) is fixedly installed with a mounting cover (3), the mounting cover (3) is slidably installed with a sliding plate (4), one side of the sliding plate (4) is provided with a pressure detection assembly (5), the pressure detection assembly (5) is provided with a plug rod (6), one end of the plug rod (6) extends out of the mounting cover (3), the mounting cover (3) is provided with a camera (7) and a light (8), the mounting cover (3) is provided with two electric cylinders (9), the output rod of the electric cylinder (9) is fixed on the sliding plate (4), the outer wall of the round plate (2) is provided with four first grooves (10) arranged in an annular array, the first grooves (10) are slidably installed with a top rod (11), the top rod (11) is threadedly installed with a lead screw (12), the round plate (2) is provided with a first cavity (13), one end of the lead screw (12) extends into the first cavity (13) and is provided with a first bevel gear (14), the cylinder (1) is rotatably installed with a round rod (15), the round rod (15) is provided with three second bevel gears (16), the first bevel gear (14) is engaged with the corresponding second bevel gear (16), the cylinder (1) is provided with a first motor (17), the output shaft of the first motor (17) is provided with a third bevel gear (18), the third bevel gear (18) is engaged with the corresponding second bevel gear (16).

2. The device for detecting the compaction degree of bridge prestressed duct grouting according to claim 1, characterized in that: The round plate (2) further comprises a plurality of second grooves (19), the second grooves (19) are rotatably installed with a rotating rod (20), the rotating rod (20) is fixedly sleeved with a gear (21) and a fourth bevel gear (22), one side of the gear (21) extends out of the corresponding second groove (19), the round plate (2) is provided with a plurality of second cavities (23), the second cavities (23) are provided with a second motor (24), the output shaft of the second motor (24) extends into the corresponding second groove (19) and is provided with a fifth bevel gear (25), the fifth bevel gear (25) is engaged with the corresponding fourth bevel gear (22).

3. The device for detecting the compaction degree of bridge prestressed duct grouting according to claim 1, characterized in that: The first grooves (10) are provided with limiting grooves on the inner walls of both sides, the limiting grooves are slidably installed with limiting blocks, the limiting blocks are fixed on the top rod (11), the top rod (11) is provided with a plurality of anti-skid teeth.

4. The device for detecting the compaction degree of bridge prestressed duct grouting according to claim 1, characterized in that: The first cavity (13) and the corresponding first groove (10) are penetrated by a first through hole, the lead screw (12) is rotatably penetrated through the first through hole, one end of the top rod (11) is provided with a threaded groove, and the lead screw (12) is threadedly installed in the threaded groove.

5. The device for detecting the compaction degree of bridge prestressed duct grouting according to claim 1, characterized in that: The cylinder (1) is provided with two vertical plates, the round rod (15) is rotatably penetrated through the two vertical plates, and the inner wall of one side of the cylinder (1) is penetrated by an access hole, and the access hole is slidably installed with a cover plate.

6. The device for detecting the compaction degree of bridge prestressed duct grouting according to claim 1, characterized in that: One side of the mounting cover (3) is penetrated by a second through hole, the plug rod (6) is slidably penetrated through the second through hole, and the round plate (2) away from the mounting cover (3) is provided with a handle and a rope connecting lug.

7. The device for detecting the compaction degree of bridge prestressed duct grouting according to claim 2, characterized in that: A plurality of installation boxes (26) are arranged on the cylinder (1), and a storage battery (27) is arranged in each installation box (26); the pressure detection assembly (5), the camera (7), the illuminating lamp (8), the electric cylinder (9), the first motor (17) and the second motor (24) are electrically connected with the corresponding storage battery (27) through wires respectively.

8. The device for detecting the compaction degree of bridge prestressed duct grouting according to claim 2, characterized in that: Two ends of the rotating rod (20) are rotatably installed in the corresponding installation slots.

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