A corrugated pipe offset detection device and method in continuous beam prestressed construction

Abstract

The application provides a corrugated pipe offset detection device and method in continuous beam prestressed construction, and relates to the technical field of prestressed construction corrugated pipe offset detection, which comprises a support platform, an adjustable supporting leg arranged below the support platform, a support frame arranged on the upper side of the support platform, a laser emitting component arranged in the support frame, a first target disc and a second target disc, the first target disc and the second target disc are transparent and detachably connected to the two ends of the corrugated pipe, the laser beam emitted by the laser emitting component can pass through the first target disc and the second target disc and leave light spots on the first target disc and the second target disc, and a transverse centering structure comprising a pair of limiting rods connected to one end of the support frame and arranged on the two sides of the corrugated pipe. The application solves the problem of insufficient offset detection precision of the corrugated pipe in the continuous beam prestressed construction.

Description

Technical Field

[0001] This invention belongs to the field of corrugated pipe offset detection technology in prestressed construction, and more specifically, relates to a device and method for detecting corrugated pipe offset in continuous beam prestressed construction. Background Technology

[0002] In the construction of continuous prestressed beams, the precise positioning of corrugated pipes is crucial to the construction quality. Corrugated pipes provide the passage for prestressing tendons and, as a "line control" component for the tendons, their offset directly affects the uniformity of stress on the tendons and the overall prestressing condition of the structure. In traditional construction methods, the positioning of corrugated pipes mainly relies on manual relative measurement and experience-based judgment, making it difficult to achieve high-precision offset detection, resulting in inaccurate fixing positions of the corrugated pipes. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a device and method for detecting the offset of corrugated pipes in the prestressed construction of continuous beams, thereby solving the problem of insufficient accuracy in detecting the offset of corrugated pipes in the prestressed construction of continuous beams.

[0004] To achieve the above objectives, the present invention provides a device for detecting pipe offset during continuous beam prestressing construction, comprising:

[0005] A support platform, wherein adjustable legs are provided at the bottom of the support platform;

[0006] A support frame is disposed on the upper side of the support platform, and a laser emitting component is disposed inside the support frame;

[0007] The first target disk and the second target disk are transparent and are detachably connected to both ends of the bellows. The laser beam emitted by the laser emitting component can pass through the first target disk and the second target disk and leave light spots on the first target disk and the second target disk.

[0008] The transverse centering structure includes a pair of limiting rods connected to one end of the support frame, and the pair of limiting rods are respectively used to be set on both sides of the corrugated pipe.

[0009] Optionally, two annular protrusions are provided on one side of the first target disk and the second target disk, and an annular mounting groove is formed between the two annular protrusions. The mounting groove is inserted and limited to the end of the bellows.

[0010] Optionally, the first target disk and the second target disk are respectively provided with a first through pin hole at both radial ends. The limiting rod is a telescopic rod. One end of the limiting rod is hinged to the support frame, and the other end of the limiting rod is provided with a second through pin hole that cooperates with the first through pin hole. The positioning pin of the transverse centering structure can pass through the second through pin hole and the first through pin hole.

[0011] Optionally, the laser emitting component includes a housing and an emitting head disposed within the housing, wherein the emitting angle of the emitting head is adjustable so that the angle at which the laser beam is emitted from the housing is adjustable.

[0012] Optionally, a level is provided on the upper side of the support platform.

[0013] Optionally, a lifting mechanism is provided between the support frame and the support platform.

[0014] Optionally, the outer diameters of the first target disk and the second target disk are larger than the outer diameter of the bellows.

[0015] The support frame includes:

[0016] A U-shaped frame, with its opening facing upwards, is positioned above the lifting mechanism;

[0017] Two rotating rings are respectively rotatably connected to the two sides inside the U-shaped frame. Each rotating ring has a guide groove along the radial direction, and the length of the guide groove is greater than the radius of the corrugated pipe.

[0018] A sliding shaft, with its two ends slidably disposed within a guide groove, and each end of the guide groove being provided with an elastic limiting structure, so that the sliding shaft can be located at the center of the rotating ring and at the outer end of the guide groove;

[0019] A suspension component, one end of which is rotatably connected to the sliding shaft, and the other end of which is connected to the laser emitting component.

[0020] Optionally, each of the rotating rings has a rotating disk concentrically arranged inside it. The outer periphery of the rotating disk is connected to the rotating ring via a connecting rod. The two rotating disks are provided with a rotating shaft that is rotatably connected to the U-shaped frame on their opposite sides. The rotating disk and the rotating ring are respectively provided with a first opening and a second opening. Each rotating disk is connected to one end of a guide rod on both sides of the first opening. The other ends of the two guide rods extend through the second opening to the outside of the rotating ring and are connected to the two side walls of the second opening. A guide groove is formed between the two guide rods. A blocking part is provided at the outer end of the guide groove to block the sliding shaft.

[0021] This invention also provides a method for detecting the offset of corrugated pipes during the prestressed construction of continuous beams, utilizing the aforementioned device for detecting the offset of corrugated pipes during the prestressed construction of continuous beams. The method includes:

[0022] The first target plate and the second target plate are respectively installed at both ends of a section of bellows;

[0023] The support platform is placed on the outside of one end of the bellows, and the lateral centering of the laser emitting component is completed by the lateral centering structure.

[0024] The support platform is leveled and the height of the support frame is adjusted so that the laser beam emitted by the laser emitting component enters from the center of the first target disk.

[0025] Observe the position of the spot left by the laser beam on the second target disk to detect the end offset of the bellows.

[0026] Optionally, the outer diameters of the first target disk and the second target disk are larger than the outer diameter of the bellows.

[0027] The support frame includes:

[0028] A U-shaped frame, with its opening facing upwards, is positioned above the lifting mechanism;

[0029] Two rotating rings are respectively rotatably connected to the two sides inside the U-shaped frame. Each rotating ring has a guide groove along the radial direction, and the length of the guide groove is greater than the radius of the corrugated pipe.

[0030] A sliding shaft, with its two ends slidably disposed within a guide groove, and each end of the guide groove being provided with an elastic limiting structure, so that the sliding shaft can be located at the center of the rotating ring and at the outer end of the guide groove;

[0031] A suspension component, one end of which is rotatably connected to the sliding shaft, and the other end of which is connected to the laser emitting component;

[0032] The method for detecting bellows offset during the prestressed construction of continuous beams also includes:

[0033] Move the sliding shaft, which is located at the center of the rotating ring, to the outer end of the guide groove so that the laser beam is on the outside of the bellows;

[0034] Rotate the rotating ring to make the laser beam rotate around the outside of the bellows in the circumference, in order to detect the offset of the middle part of the bellows.

[0035] This invention provides a device and method for detecting corrugated pipe offset during continuous beam prestressed construction. Its advantages are as follows: the device can be placed on the bottom formwork of the continuous beam prestressed construction via a support platform. The support platform can be leveled and raised by adjusting the length of the adjustable legs. The lateral alignment structure, through a pair of limiting rods on both sides of the corrugated pipe, can laterally align the laser emitting component. The laser emitting component on the support frame can emit a laser beam into the corrugated pipe. The first target plate and the second... The target plates are installed at both ends of the corrugated pipe under test. The scales on the first and second target plates ensure that the laser beam enters the corrugated pipe from the center of the first target plate. The laser beam enters the corrugated pipe along the axis and leaves a light spot on the second target plate. By observing the position of this light spot on the second target plate, the end offset of the corrugated pipe can be detected. The detection accuracy is high, and the direction and amount of the end offset of the corrugated pipe can be detected at one time, which is convenient for the position correction of the corrugated pipe and improves the installation accuracy of the corrugated pipe.

[0036] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0037] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the invention.

[0038] Figure 1 A schematic diagram of a corrugated pipe offset detection device in the prestressed construction of a continuous beam according to an embodiment of the present invention is shown.

[0039] Figure 2 A schematic diagram of the structure of the first target plate of a corrugated pipe offset detection device in the prestressed construction of a continuous beam according to an embodiment of the present invention is shown.

[0040] Figure 3 A schematic diagram of a corrugated pipe offset detection device in the prestressed construction of a continuous beam according to an embodiment of the present invention is shown when the corrugated pipe has a slope.

[0041] Figure 4 A side view of the support frame of a corrugated pipe offset detection device in the prestressed construction of a continuous beam according to an embodiment of the present invention is shown.

[0042] Figure 5 The diagram shows a side view of the support frame of a corrugated pipe offset detection device in the prestressed construction of a continuous beam according to an embodiment of the present invention, when detecting the offset at the middle.

[0043] Figure 6 A flowchart of a method for detecting corrugated pipe offset during continuous beam prestressing construction according to an embodiment of the present invention is shown.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1. Support platform; 2. Support legs; 3. Laser emitting component; 4. First target plate; 5. Limiting rod; 6. Annular protrusion; 7. Positioning pin; 8. Outer shell; 9. Emitter head; 10. Lifting mechanism; 11. U-shaped frame; 12. Rotating ring; 13. Guide groove; 14. Sliding shaft; 15. Elastic limiting structure; 16. Suspension component; 17. Rotating disk; 18. Guide rod; 19. Blocking part; 20. Handle; 21. Bellows; 22. Laser beam. Detailed Implementation

[0046] Preferred embodiments of the invention will now be described in more detail. While preferred embodiments of the invention are described below, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0047] like Figure 1 As shown, the present invention provides a device for detecting the displacement of the ductwork during the prestressed construction of a continuous beam, comprising:

[0048] Support platform 1, with adjustable support legs 2 installed below support platform 1;

[0049] A support frame is installed on the upper side of the support platform 1, and a laser emitting component 3 is installed inside the support frame;

[0050] The first target disk 4 and the second target disk are transparent and are detachably connected to both ends of the bellows 21. The laser beam 22 emitted by the laser emitting component 3 can pass through the first target disk 4 and the second target disk and leave light spots on the first target disk 4 and the second target disk.

[0051] The transverse centering structure includes a pair of limiting rods 5 connected to one end of the support frame. The pair of limiting rods 5 are respectively used to set on both sides of the bellows 21.

[0052] Specifically, to address the problem of insufficient accuracy in detecting the offset of the corrugated pipe 21 during continuous beam prestressing construction in existing technologies, the corrugated pipe offset detection device provided by this invention can be placed on the bottom formwork during continuous beam prestressing construction via a support platform 1. The support platform 1 can be leveled and raised by adjusting the length of the adjustable legs 2. The lateral alignment structure, through a pair of limiting rods 5 on both sides of the corrugated pipe 21, can laterally align the laser emitting component 3. The laser emitting component 3 on the support frame can emit a laser beam 22 into the corrugated pipe 21. The first target plate 4 and the second target plate 4 are used to detect the offset of the corrugated pipe 21. The target plates are respectively installed at both ends of the corrugated pipe 21 under test. The scales on the first target plate 4 and the second target plate can be used to ensure that the laser beam 22 enters the corrugated pipe 21 from the center of the first target plate 4. The laser beam 22 enters the corrugated pipe 21 along the axis of the corrugated pipe 21 and leaves a light spot on the second target plate. By observing the position of the light spot on the second target plate, the end offset of the corrugated pipe 21 can be detected. The detection accuracy is high, and the offset direction and offset amount of the end of the corrugated pipe 21 can be detected at one time, which is convenient for the position correction of the corrugated pipe 21 and improves the installation accuracy of the corrugated pipe 21.

[0053] In this embodiment, as Figure 2 As shown, the first target disk 4 and the second target disk are made of transparent acrylic material and are circular. The disk surface is provided with ring and cross-shaped scale lines to facilitate reading the degree and direction of the offset of the bellows 21.

[0054] In this embodiment, the adjustable support leg 2 is threadedly connected to the support platform 1 with a threaded rod, and fastening nuts are provided on the upper and lower sides of the support platform 1.

[0055] Optionally, two annular protrusions 6 are provided on one side of the first target plate 4 and the second target plate, and an annular mounting groove is formed between the two annular protrusions 6. The mounting groove is inserted and limited to the end of the bellows 21.

[0056] Specifically, the first target plate 4 and the second target plate are installed on the bellows 21 using an installation groove. By inserting a small section of the bellows 21 into the installation groove, not only is the first target plate 4 stably installed, but the installation groove also provides a guiding function, making the first target plate 4 and the second target plate perpendicular to the axis of the bellows 21, thereby improving the accuracy of the detection.

[0057] Optionally, a first through-pin hole is provided at each of the radial ends of the first target plate 4 and the second target plate. The limiting rod 5 is a telescopic rod. One end of the limiting rod 5 is hinged to the support frame, and the other end of the limiting rod 5 is provided with a second through-pin hole that cooperates with the first through-pin hole. The positioning pin 7 of the transverse centering structure can pass through the second through-pin hole and the first through-pin hole.

[0058] Specifically, in order to facilitate lateral centering operation and improve lateral centering accuracy, the two limiting rods 5 are connected to the first through pin holes at both ends of a diameter of the first target plate 4 through the positioning pins 7. The lateral centering of the laser emitting component 3 is achieved by using the limiting cooperation between the radial ends of the first target plate 4 and the limiting rods 5. Furthermore, the telescopic setting of the limiting rods 5 and the hinged setting of the limiting rods 5 and the support frame can adapt to the adjustment of the relative position of the first target plate 4 and the support frame.

[0059] In this embodiment, the limiting rod 5 includes an inner rod and an outer rod that is movably sleeved on the outside of the inner rod. The outer rod is rotatably connected to the support frame by a rotating pin, allowing it to rotate in the vertical plane. The cooperation between the inner rod and the outer rod enables its telescopic function.

[0060] Optionally, the laser emitting component 3 includes a housing 8 and an emitting head 9 disposed within the housing 8. The emitting angle of the emitting head 9 is adjustable so that the angle at which the laser beam 22 is emitted from the housing 8 is adjustable.

[0061] Specifically, the adjustable-angle emitter head 9 inside the housing 8 of the laser emitting component 3 can emit laser beams 22 at different angles to detect the corrugated pipe 21 with a slope.

[0062] In this embodiment, the laser emitting component 3 is a laser pipeline instrument with a built-in slope angle adjustment function.

[0063] Optionally, a level is provided on the upper side of the support platform 1.

[0064] Specifically, the level setting facilitates the leveling of support platform 1.

[0065] In this embodiment, a circular bubble level is used.

[0066] Optionally, a lifting mechanism 10 is provided between the support frame and the support platform 1.

[0067] Specifically, the lifting mechanism 10 facilitates the adjustment of the height of the support frame and the laser emitting component 3.

[0068] In this embodiment, the lifting mechanism 10 adopts an electric lifting component, such as an electric telescopic rod, which can improve the convenience of operation and the efficiency of detection.

[0069] like Figure 3 As shown, when inspecting a corrugated pipe 21 with a slope at one end, the lateral centering and height adjustment of the laser emitting component 3 can be quickly completed by using the convenient adjustment of the extension and lifting mechanism 10 of the two limit rods 5. The laser beam 22 of the laser emitting component 3 is emitted along the set slope angle to inspect the straight section of the corrugated pipe 21 with a slope.

[0070] Optionally, the outer diameters of the first target disk 4 and the second target disk are larger than the outer diameter of the bellows 21.

[0071] The support frame includes:

[0072] U-shaped frame 11, with its opening facing upwards, is positioned above the lifting mechanism 10;

[0073] Two rotating rings 12 are rotatably connected to the two sides inside the U-shaped frame 11. The rotating rings 12 are provided with guide grooves 13 along the radial direction. The length of the guide grooves 13 is greater than the radius of the bellows 21.

[0074] The sliding shaft 14 has two ends that are slidably disposed in a guide groove 13. Each end of the guide groove 13 is provided with an elastic limiting structure 15 so that the sliding shaft 14 can be located at the center of the rotating ring 12 and at the outer end of the guide groove 13.

[0075] The suspension component 16 has one end rotatably connected to the sliding shaft 14 and the other end connected to the laser emitting component 3.

[0076] Specifically, to further detect the mid-section offset of a section of bellows 21 and improve the installation accuracy of bellows 21, the laser emitting component 3 is suspended below the sliding shaft 14 via the suspension component 16. When detecting the end offset of bellows 21, the sliding shaft 14 is located at the center of the rotating ring 12 and is held in position by an elastic limiting structure 15. The laser beam 22 is incident along the axis of bellows 21. When detecting the mid-section offset of bellows 21, since the mid-section offset is generally adjusted adaptively after the end condition is corrected, the offset is relatively slight. Therefore, the detection efficiency is very important for this step. In this case, the present invention provides a guide groove 13 and a sliding shaft 14, and slides the sliding shaft 14 outward along the guide groove 13. When the laser beam 22 reaches the outside of the bellows 21, since the outer diameters of the first target disk 4 and the second target disk are larger than the outer diameter of the bellows 21, the position of the sliding shaft 14 and the distance of the laser beam 22 from the bellows 21 can be set according to the accuracy requirements. Then, by rotating the rotating ring 12, the laser beam 22 can be quickly rotated around the outer circumference of the bellows 21. The position of the bellows 21 can be determined by the display of the light spot on the second target disk. If the position is too large, the light path can be blocked. The position of the bellows 21 can be easily adjusted by the position of the laser beam 22 hitting the bellows 21. If the degree of deviation is acceptable, there is no need to adjust the bellows 21. The detection of the deviation in the middle of the bellows 21 can be completed in a very short time.

[0077] In this embodiment, the suspension component 16 includes a suspension rod, the upper end of which is provided with a hole sleeved on the outside of the sliding shaft 14, and the lower end of the suspension rod is connected to the outer casing 8.

[0078] Optionally, a rotating disk 17 is concentrically arranged inside each rotating ring 12. The outer periphery of the rotating disk 17 is connected to the rotating ring 12 via a connecting rod. The two rotating disks 17 are provided with a rotating shaft that is rotatably connected to the U-shaped frame 11 on the side away from each other. The rotating disk 17 and the rotating ring 12 are respectively provided with a first opening and a second opening. Each rotating disk 17 is connected to one end of a guide rod 18 on both sides of the first opening. The other ends of the two guide rods 18 extend through the second opening to the outside of the rotating ring 12 and are connected to the two side walls of the second opening. A guide groove 13 is formed between the two guide rods 18. A blocking part 19 is provided at the outer end of the guide groove 13. The blocking part 19 is used to block the sliding shaft 14.

[0079] Specifically, a rotating disk 17 is connected to the inside of the rotating ring 12 via a connecting rod. The rotating disk 17 is rotatably connected to both sides of the opening of the U-shaped frame 11 via a rotating shaft on its outer side, facilitating the rotation of the rotating ring 12. A hole at the center of the rotating disk 17 accommodates a sliding shaft 14, positioning it at the center of the rotating ring 12. A straight guide groove 13 is formed by the gap between two guide rods 18, allowing the sliding shaft 14 to move outwards until it contacts the blocking part 19. Once the sliding shaft 14 is in position, the guide rods 18 extend out of the rotating ring 12, minimizing obstruction of the laser beam 22 by the rotating ring 12 or the connecting rod during rotation, thus improving the integrity of the detection. Figure 4 As shown, when detecting the offset of the bellows 21 end, the sliding shaft 14 is inside the rotating disk 17, and the connecting rod avoids the optical path of the laser beam 22; Figure 5 As shown, when detecting the offset of the middle part of the bellows 21, the sliding shaft 14 is at the outer end of the guide groove 13. As the rotating ring 12 rotates, the laser beam 22 moves around the outer circumference of the bellows 21.

[0080] In this embodiment, the elastic limiting structure 15 adopts a spring sheet that protrudes outward from a guide rod 18. When the sliding shaft 14 slides past, the spring sheet is compressed and the sliding shaft 14 passes through. After the sliding shaft 14 passes through, the spring sheet rebounds and blocks the sliding shaft 14 to a certain extent.

[0081] In this embodiment, a crank handle 20 is provided on the rotating ring 12 to facilitate the rotation operation of the rotating ring 12.

[0082] like Figure 6 As shown, the present invention also provides a method for detecting the offset of corrugated pipes during the prestressed construction of continuous beams. Utilizing the aforementioned device for detecting the offset of corrugated pipes during the prestressed construction of continuous beams, the method includes:

[0083] The first target plate 4 and the second target plate are respectively installed at both ends of a section of bellows 21;

[0084] The support platform 1 is placed on the outside of one end of the bellows 21, and the lateral centering of the laser emitting component 3 is completed by the lateral centering structure.

[0085] The support platform 1 is leveled and the height of the support frame is adjusted so that the laser beam 22 emitted by the laser emitting component 3 enters from the center of the first target disk 4.

[0086] Observe the position of the spot left by the laser beam 22 on the second target disk to detect the end offset of the bellows 21.

[0087] Specifically, the first target plate 4 and the second target plate are first installed at both ends of the corrugated pipe 21 section to be tested through their mounting slots, so that the first target plate 4 and the second target plate are as perpendicular as possible to the axis of the corrugated pipe 21 to ensure detection accuracy. Then, the support platform 1 can be placed on the bottom formwork of the steel plate in the prestressed construction of the continuous beam. The laser emitting component 3 is supported by the support frame. The two limiting rods 5 of the lateral centering structure are used to adjust the lateral centering of the device. The second pin holes at the ends of the two limiting rods 5 are aligned with the first pin holes and the positioning pins 7 are inserted to ensure the lateral centering of the laser emitting component 3. Then, the support legs are adjusted. 2 can achieve leveling and height adjustment of support platform 1, open laser emitting component 3, and ensure that the laser beam 22 emitted by laser emitting component 3 enters from the center of the first target plate 4. The laser beam 22 enters the bellows 21 along the incident end axis of the bellows 21 and exits from the other end. When detecting the end offset of the bellows 21, the position of the light spot left by the laser beam 22 on the second target plate can be observed at this time. Combined with the ring and cross-shaped scale lines on the second target plate, it is easy to read the degree and direction of offset of the bellows 21, thereby facilitating the correction of the end position of the bellows 21 and improving the installation accuracy of the bellows 21.

[0088] Optionally, the outer diameters of the first target disk 4 and the second target disk are larger than the outer diameter of the bellows 21.

[0089] The support frame includes:

[0090] U-shaped frame 11, with its opening facing upwards, is positioned above the lifting mechanism 10;

[0091] Two rotating rings 12 are rotatably connected to the two sides inside the U-shaped frame 11. The rotating rings 12 are provided with guide grooves 13 along the radial direction. The length of the guide grooves 13 is greater than the radius of the bellows 21.

[0092] The sliding shaft 14 has two ends that are slidably disposed in a guide groove 13. Each end of the guide groove 13 is provided with an elastic limiting structure 15 so that the sliding shaft 14 can be located at the center of the rotating ring 12 and at the outer end of the guide groove 13.

[0093] The suspension component 16 has one end rotatably connected to the sliding shaft 14, and the other end connected to the laser emitting component 3.

[0094] Methods for detecting corrugated pipe offset during continuous beam prestressed construction also include:

[0095] Move the sliding shaft 14, which is located at the center of the rotating ring 12, to the outer end of the guide groove 13 so that the laser beam 22 is located outside the bellows 21.

[0096] Rotate the rotating ring 12 so that the laser beam 22 rotates around the outside of the bellows 21 in the circumference to detect the offset of the middle part of the bellows 21.

[0097] Specifically, to further detect the mid-section offset of the bellows 21, after detecting the end offset of the bellows 21, the position of the device can be maintained, and the position of the sliding shaft 14 can be adjusted. The sliding shaft 14 is moved outward along the guide groove 13 so that the laser beam 22 is outside the bellows 21 and still passes through the first target plate 4 and the second target plate. Then, the rotating ring 12 can be rotated by the crank 20 so that the laser emitting component 3 and its emitted laser beam 22 move around the outer periphery of the bellows 21. By observing whether the laser beam 22 always emits a light spot on the second target plate and the position of the light spot on the bellows 21, the mid-section offset of the bellows 21 can be determined, thereby realizing the detection of the mid-section offset of the bellows 21 and further improving the detection accuracy and the installation accuracy of the bellows 21.

[0098] Furthermore, for offset detection of the corrugated pipe 21 with a slope, the emission angle of the laser beam 22 is adjusted to be the same as and match the slope of the corrugated pipe 21. Then, only the lifting mechanism 10 needs to be adjusted to achieve the detection using the above method. The operation is very convenient and the detection efficiency is high.

[0099] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A device for detecting the offset of corrugated pipes during the prestressed construction of continuous beams, characterized in that, The device includes: A support platform, wherein adjustable legs are provided at the bottom of the support platform; A support frame is disposed on the upper side of the support platform, and a laser emitting component is disposed inside the support frame; The first target disk and the second target disk are transparent and are detachably connected to both ends of the bellows. The laser beam emitted by the laser emitting component can pass through the first target disk and the second target disk and leave light spots on the first target disk and the second target disk. A transverse centering structure, the transverse centering structure including a pair of limiting rods connected to one end of the support frame, the pair of limiting rods being respectively used to be set on both sides of the corrugated pipe; The first target plate and the second target plate are respectively provided with a first through pin hole at both radial ends. The limiting rod is a telescopic rod. One end of the limiting rod is hinged to the support frame. The other end of the limiting rod is provided with a second through pin hole that cooperates with the first through pin hole. The positioning pin of the transverse centering structure can pass through the second through pin hole and the first through pin hole. A lifting mechanism is provided between the support frame and the support platform; The outer diameters of the first target disk and the second target disk are larger than the outer diameter of the bellows. The support frame includes: A U-shaped frame, with its opening facing upwards, is positioned above the lifting mechanism; Two rotating rings are respectively rotatably connected to the two sides inside the U-shaped frame. Each rotating ring has a guide groove along the radial direction, and the length of the guide groove is greater than the radius of the corrugated pipe. A sliding shaft, with its two ends slidably disposed within a guide groove, and each end of the guide groove being provided with an elastic limiting structure, so that the sliding shaft can be located at the center of the rotating ring and at the outer end of the guide groove; A suspension component, one end of which is rotatably connected to the sliding shaft, and the other end of which is connected to the laser emitting component; Each of the rotating rings has a rotating disk concentrically arranged inside. The outer periphery of the rotating disk is connected to the rotating ring via a connecting rod. The two rotating disks are provided with a rotating shaft that is rotatably connected to the U-shaped frame on their opposite sides. The rotating disk and the rotating ring are respectively provided with a first opening and a second opening. Each rotating disk is connected to one end of a guide rod on both sides of the first opening. The other ends of the two guide rods extend through the second opening to the outside of the rotating ring and are connected to the side walls of the second opening. A guide groove is formed between the two guide rods. A blocking part is provided at the outer end of the guide groove to block the sliding shaft.

2. The corrugated pipe offset detection device for continuous beam prestressed construction according to claim 1, characterized in that, The first target plate and the second target plate are provided with two annular protrusions on one side, and an annular mounting groove is formed between the two annular protrusions. The mounting groove is inserted and limited to the end of the bellows.

3. The corrugated pipe offset detection device for continuous beam prestressed construction according to claim 1, characterized in that, The laser emitting component includes a housing and an emitting head disposed within the housing. The emitting head has an adjustable emitting angle, so that the angle at which the laser beam is emitted from the housing is adjustable.

4. The corrugated pipe offset detection device for continuous beam prestressed construction according to claim 1, characterized in that, A level is installed on the upper side of the support platform.

5. A method for detecting corrugated pipe offset during continuous beam prestressed construction, utilizing the corrugated pipe offset detection device for continuous beam prestressed construction as described in any one of claims 1-4, characterized in that, The method includes: The first target plate and the second target plate are respectively installed at both ends of a section of bellows; The support platform is placed on the outside of one end of the bellows, and the lateral centering of the laser emitting component is completed by the lateral centering structure. The support platform is leveled and the height of the support frame is adjusted so that the laser beam emitted by the laser emitting component enters from the center of the first target disk. Observe the position of the spot left by the laser beam on the second target disk to detect the end offset of the bellows.

6. The method for detecting corrugated pipe offset during continuous beam prestressed construction according to claim 5, characterized in that, The outer diameters of the first target disk and the second target disk are larger than the outer diameter of the bellows. The support frame includes: A U-shaped frame, with its opening facing upwards, is positioned above the lifting mechanism; Two rotating rings are respectively rotatably connected to the two sides inside the U-shaped frame. Each rotating ring has a guide groove along the radial direction, and the length of the guide groove is greater than the radius of the corrugated pipe. A sliding shaft, with its two ends slidably disposed within a guide groove, and each end of the guide groove being provided with an elastic limiting structure, so that the sliding shaft can be located at the center of the rotating ring and at the outer end of the guide groove; A suspension component, one end of which is rotatably connected to the sliding shaft, and the other end of which is connected to the laser emitting component; The method for detecting bellows offset during the prestressed construction of continuous beams also includes: Move the sliding shaft, which is located at the center of the rotating ring, to the outer end of the guide groove so that the laser beam is on the outside of the bellows; Rotate the rotating ring to make the laser beam rotate around the outside of the bellows in the circumference, in order to detect the offset of the middle part of the bellows.

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