Angle measuring device for cast-in-place box beam

Abstract

The present invention discloses an angle measuring device for a cast-in-place box girder, and specifically relates to the technical field of box girder measurement, comprising two box girder seats, on which a box girder body is jointly supported, two guide rails are symmetrically installed on both sides of the two box girder seats, and walking parts are installed on the two guide rails. The two measuring mechanisms of the present invention use two flexible follow-up mechanisms to complete flexible contact with the box girder body. Such a design can avoid damage caused by the rigid contact between the measuring mechanism and the box girder body while ensuring a stable measurement effect, and is conducive to completing the measurement action in the walking state. At the same time, two marking mechanisms are used to complete the linkage with two flexible follow-up mechanisms. Therefore, when the angle of the box girder body is measured to be abnormal, the marking mechanism is driven to complete the follow-up marking, which is conducive to the staff to subsequently learn the abnormal position of the box girder body, and is conducive to discovering the structural defects of the box girder body, which is convenient for the subsequent transformation and upgrading of the box girder mold.

Description

Technical Field

[0001] The invention relates to the technical field of box girder measurement, in particular to an angle measurement device for a cast-in-place box girder. Background Art

[0002] The box girder is an important part of bridge construction. It is hollow inside and has flanges on both sides of the upper part. It is generally a reinforced concrete structure.

[0003] After the box girder is formed, the dimensions of the box girder need to be measured, including the length of the top plate, the length of the bottom plate, the height of the box girder, the inclination of the top plate and the bottom angle of the box girder. Currently, after the box girder is formed, it is necessary to measure the angle of the bottom after forming, so as to obtain the standard degree of the box girder, ensure the quality of the box girder, and avoid the problem of errors in the formed box girder caused by damage to the box girder mold. In the prior art, the measurement of the box girder relies too much on manual calibration and manual measurement, and measures other dimensions in turn through tools such as tape measures. Manual operation is cumbersome, the measurement efficiency is low, and the measurement difficulty is increased.

[0004] A box girder measuring device and a multifunctional box girder rotating device are disclosed in a patent application with reference to publication number CN117268271B. The measuring device can automatically determine the center line of the measurement by using two measuring mechanisms during measurement, and a first distance measuring sensor is arranged on an L-shaped clamp block. When the two L-shaped clamp blocks clamp the bottom plate of the box girder, the centering adjustment and the bottom plate width measurement can be completed. By using a traveling hanger in combination with the measuring mechanism, the measuring mechanism can be adjusted to different heights and different positions for measurement, and the overall measurement is simple and convenient.

[0005] The above-mentioned measuring device can complete the measurement of the width and thickness of the box beam through the measuring mechanism, which reduces the measurement difficulty of the box beam. However, the measuring device cannot complete the synchronous measurement of the angles on both sides of the bottom of the box beam, so it cannot know the state of the box beam after forming. At the same time, the current measuring device cannot perform adaptive measurement of the bottom angle of the box beam, which makes the measurement efficiency low. The measuring mechanism needs to be adjusted repeatedly, and the accuracy of the box beam after forming cannot be controlled.

[0006] At the same time, the above-mentioned measuring device cannot actively mark the abnormal position during the measurement process. Therefore, after the abnormal position is measured subsequently, the staff cannot quickly know the abnormal position because it is not marked, which increases the difficulty of finding and wastes a lot of time. It is not conducive to the stable progress of the measurement work, affects the measurement efficiency, and the actual use effect is not ideal. Summary of the invention

[0007] The purpose of the present invention is to provide an angle measuring device for a cast-in-place box girder to solve the above technical problems.

[0008] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0009] The present invention discloses an angle measuring device for a cast-in-place box girder, comprising two box girder seats, on which a box girder body is commonly supported, two guide rails symmetrically installed on both sides of the two box girder seats, walking parts installed on the two guide rails, a positive and negative threaded screw guide rail module commonly installed on the two walking parts, and measuring mechanisms installed on two sliders of the positive and negative threaded screw guide rail module, the two measuring mechanisms are symmetrically arranged, and synchronous measurement of the box girder body is jointly completed by the two measuring mechanisms, and flexible follow-up mechanisms are added to the two measuring mechanisms, and flexible follow-up measurement actions are completed by the two flexible follow-up mechanisms cooperating with the box girder body, and marking mechanisms are added to the two flexible follow-up mechanisms at the same time, and the two marking mechanisms are respectively linked with the two flexible follow-up mechanisms, and in the detection action of the flexible follow-up mechanism, the marking mechanisms are synchronously driven to complete the follow-up marking action.

[0010] Furthermore, the two walking parts each include a slide, which is correspondingly slidably engaged on the guide rail, and racks are hidden and installed on the upper surfaces of the two guide rails. A gear is rotatably installed on one side of the slide through a bracket, and the gear is correspondingly meshed and connected with the rack. A walking motor is installed on one side of the slide through a bracket, and the output end of the walking motor is connected to the gear transmission.

[0011] Furthermore, the two measuring mechanisms each include an electric cylinder installed at the output end of the forward and reverse threaded screw guide module, a measuring arm No. 1 is installed at the output end of the electric cylinder, an adjusting shaft is rotatably inserted through one end of the No. 1 measuring arm, a No. 2 measuring arm is fixedly sleeved on the outside of the adjusting shaft, and an adjusting motor is installed on one side of the No. 1 measuring arm through a bracket, the output end of the adjusting motor is transmission-connected to the adjusting shaft, the No. 2 measuring arm is driven by the adjusting motor to complete the rotation movement, and an angle sensor is installed at the other end of the No. 1 measuring arm through the bracket, and the angle sensor is connected to one end of the adjusting shaft to complete the measurement work.

[0012] Furthermore, a gear ring is fixedly provided at one end of the adjusting shaft extending out of the No. 1 measuring arm, an arc-shaped gear plate is slidably installed on one side of the No. 1 measuring arm, and a baffle is installed on one side of the No. 1 measuring arm. An adjusting screw is passed through the baffle through a threaded engagement, and the front end of the adjusting screw is rotatably connected to the back of the arc-shaped gear plate, and the arc-shaped gear plate is meshed and fixed with the gear ring.

[0013] Furthermore, the two flexible follow-up mechanisms each include a guide rod slidably inserted into the No. 1 measuring arm and the No. 2 measuring arm, a wheel seat is installed on the top of the guide rod, a contact wheel is rotatably installed on the wheel seat, a retaining ring is installed at the bottom end of the guide rod through a threaded engagement, and a measuring spring is sleeved on the outside of the guide rod.

[0014] Furthermore, the two marking mechanisms each include an extrusion circular cavity, which is closed at both ends, and an open area is arranged through the middle position of the extrusion circular cavity, and the two sides of the extrusion circular cavity are divided into area No. 1 and area No. 2 by the open area. Two trigger plates are symmetrically slidably engaged in the open area, and piston parts are slidingly and sealedly installed in area No. 1 and area No. 2. One end of the two piston parts is fixedly connected to the two trigger plates respectively, and extrusion pipes are installed at both ends of the extrusion circular cavity, and nozzles are detachably installed on the top of the two extrusion pipes. The two extrusion pipes are connected to area No. 1 and area No. 2 respectively.

[0015] Furthermore, two return springs are symmetrically installed on one side of the two trigger plates, and the front ends of the two return springs are in contact with the inner wall of the extrusion circular cavity. The two return springs drive the corresponding piston members to move toward the side away from the extrusion pipe.

[0016] Furthermore, an extrusion plate is slidably penetrated in the middle position of the open area, and the extrusion plate is located between the two trigger plates. A limit plate is installed on one side of the extrusion plate, and a limit rod is slidably penetrated on the limit plate. The bottoms of the limit rods on the two marking mechanisms are respectively connected to the upper surfaces of the No. 1 measuring arm and the No. 2 measuring arm, and a limit spring is sleeved on the outside of the limit rod. The extrusion plate is driven to reset to a predetermined position by the limit spring. A power piece is installed on one side of the extrusion plate, and the power piece is connected to the wheel seat. The follow-up coordination of the wheel seat and the extrusion plate is completed by the power piece.

[0017] Furthermore, a wedge block No. 1 is installed above the extrusion circular cavity on one side of the extrusion plate, and a wedge block No. 2 is installed below the extrusion circular cavity on the other side of the extrusion plate. The lowest point of the wedge block No. 1 contacts one of the trigger plates, and the lowest point of the wedge block No. 2 contacts the other trigger plate. The wedge block No. 1 and the wedge block No. 2 are respectively controlled by moving the extrusion plate up and down, and the two trigger plates are respectively controlled by the wedge block No. 1 and the wedge block No. 2.

[0018] Furthermore, the power component includes a No. 1 sensing rack installed on one side of the wheel seat, a No. 1 power gear is rotatably installed on one side of the No. 1 sensing rack through a bracket, a No. 2 power gear is rotatably installed on one side of the No. 1 power gear through a bracket, and the No. 1 power gear is meshingly connected with the No. 2 power gear, a No. 2 sensing rack is arranged on one side of the bottom of the extrusion plate, and a pushing screw is threadedly inserted through the extrusion plate, the front end of the pushing screw is rotatably connected to the back of the extrusion plate, the position of the No. 2 sensing rack is adjusted by the pushing screw, and the No. 2 sensing rack is meshed with the No. 2 power gear, and the power is transmitted to the extrusion plate through the No. 1 power gear and the No. 2 power gear.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention is provided with two measuring mechanisms. First, the positive and negative threaded screw guide rail modules are started to drive the two measuring mechanisms to approach each other to a certain distance. Then, the adjusting motor is started to drive the No. 2 measuring arm to follow the adjusting shaft to complete the angle adjustment. The rotation angle of the No. 2 measuring arm is monitored in real time through the angle sensor until the angle between the No. 1 measuring arm and the No. 2 measuring arm reaches the predetermined angle of the box beam body. At this time, the adjusting motor stops and the adjusting screw is rotated to push the arc-shaped tooth plate forward to mesh with the gear ring, thereby completing the locking of the No. 2 measuring arm and ensuring the stability of subsequent measurements.

[0021] 2. The present invention is provided with a flexible follow-up mechanism, and the contact wheel rotates and walks on the detection surface of the box beam body, thereby completing continuous walking measurement. Since the contact wheel is limited by the measuring spring, when there is a defect on the detection surface of the box beam body, the contact wheel will move up and down relative to the No. 1 measuring arm and the No. 2 measuring arm, resulting in displacement. The contact wheel is driven by the measuring spring to reset and contact the detection surface of the box beam body again after jumping. When the contact wheel jumps up and down, the jumping amount will be transmitted to the marking mechanism, thereby completing the marking action, which is conducive to the subsequent search for structural defects of the box beam body;

[0022] 3. The present invention is provided with a marking mechanism. When an abnormality is measured in the angle of the box girder body, the marking mechanism is driven to complete the follow-up marking, which is beneficial for the staff to subsequently learn the abnormal position of the box girder body, facilitate subsequent re-inspection, and facilitate the discovery of structural defects of the box girder body. It is convenient for the subsequent transformation and upgrading of the box girder mold, thereby improving the qualified rate of the box girder body and greatly reducing the difficulty of manual measurement.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the overall front view of the present invention;

[0025] Figure 2 It is a schematic diagram of the separation of the box beam body and the box beam seat of the present invention;

[0026] Figure 3 It is a schematic diagram of the measurement mechanism and guide rail distribution of the present invention;

[0027] Figure 4 It is a schematic diagram of the distribution of the measuring mechanism and the box beam body of the present invention;

[0028] Figure 5 It is a schematic diagram of the contact between the two measuring mechanisms of the present invention and the box beam body;

[0029] Figure 6 It is a schematic diagram of the distribution of two measuring mechanisms of the present invention on the positive and negative threaded screw guide rail module;

[0030] Figure 7 It is a schematic diagram of the distribution of two measuring mechanisms of the present invention;

[0031] Figure 8 It is a schematic diagram of the measuring mechanism of the present invention;

[0032] Fig. 9 This is a schematic diagram of the distribution of the No. 1 measuring arm and the No. 2 measuring arm of the present invention;

[0033] Fig.10 It is a schematic diagram of the distribution of the flexible follower mechanism of the present invention on the No. 1 measuring arm;

[0034] Fig.11 It is a schematic diagram of the distribution of the flexible follower mechanism and the marking mechanism of the present invention;

[0035] Fig.12 It is a schematic diagram of the marking mechanism of the present invention;

[0036] Fig.13 It is a schematic diagram of the distribution of the extrusion circular cavity and the extrusion plate of the present invention;

[0037] Fig.14 This is a schematic diagram of the interior of the extrusion circular cavity of the present invention;

[0038] Fig.15 This is a schematic diagram of the distribution of the second sensing rack on the extrusion plate of the present invention.

[0039] In the figure: 1. box beam seat; 2. box beam body; 3. guide rail; 4. walking part; 401. sliding part; 402. rack; 403. gear; 404. walking motor; 5. positive and negative screw guide rail module; 6. electric cylinder; 7. No. 1 measuring arm; 8. adjustment shaft; 9. No. 2 measuring arm; 10. adjustment motor; 11. angle sensor; 12. distance sensor; 13. gear ring; 14. arc gear plate; 15. baffle; 16. adjustment screw; 17. guide rod; 18. wheel seat; 19. contact wheel; 20. measuring Spring; 21, extrusion circular cavity; 22, open area; 23, area No. 1; 24, area No. 2; 25, trigger plate; 26, piston; 27, extrusion pipe; 28, return spring; 29, extrusion plate; 30, limit plate; 31, limit rod; 32, limit spring; 33, power part; 331, wedge block No. 1; 332, wedge block No. 2; 333, sensing rack No. 1; 334, power gear No. 1; 335, power gear No. 2; 336, sensing rack No. 2; 337, push screw; 34, material tank. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] Embodiment 1: The present invention provides a technical solution: Figures 1 to 15 As shown, a cast-in-place box beam angle measuring device comprises two box beam seats 1, on which a box beam body 2 is jointly supported, and an inner concave area cooperating with the box beam body 2 is provided on the two box beam seats 1, so that the box beam body 2 is stable, two guide rails 3 are symmetrically installed on both sides of the two box beam seats 1, and a control console is installed on one side of the two guide rails 3, and the control console completes the connection between the walking part 4, the positive and negative threaded screw guide rail module 5, the measuring mechanism and the flexible follow-up mechanism, and the two guide rails 3 are composed of a plurality of rails, and the plurality of rails are adjacent to each other. The splicing work is completed by bolts and the like. A walking part 4 is installed on each of the two guide rails 3. The walking part 4 can complete forward and backward movement on the guide rail 3. A positive and negative thread screw guide rail module 5 is installed on the two walking parts 4. Compared with the ordinary ball screw linear module, the positive and negative thread screw guide rail module 5 has two symmetrically arranged sliders on the screw rod. The two sliders are correspondingly sleeved on the outside of the screw rod, and the screw rod has positive and negative teeth, and can realize the movement of the two sliders thereon toward or away from each other. At the same time, an absolute torque is added to the motor of the positive and negative thread screw guide rail module 5. The control is completed by a value encoder to ensure the accuracy of its operation. Measuring mechanisms are installed on the two sliders of the positive and negative threaded screw guide module 5. The two measuring mechanisms are symmetrically arranged. The synchronous measurement of the box beam body 2 is completed by the two measuring mechanisms. Flexible follow-up mechanisms are added to the two measuring mechanisms. The two flexible follow-up mechanisms cooperate with the box beam body 2 to complete the flexible follow-up measurement action. At the same time, marking mechanisms are added to the two flexible follow-up mechanisms. The two marking mechanisms are respectively linked with the two flexible follow-up mechanisms. During the measuring action, the synchronously driven marking mechanism completes the follow-up marking action. The two walking parts 4 include a slide 401, which is correspondingly slidably engaged on the guide rail 3. The slide 401 is connected to the positive and negative screw guide rail module 5, and racks 402 are hidden and installed on the upper surfaces of the two guide rails 3. A gear 403 is rotatably installed on one side of the slide 401 through a bracket. The gear 403 is correspondingly meshed and connected with the rack 402, and a walking motor 404 is installed on one side of the slide 401 through a bracket. The output end of the walking motor 404 is transmission-connected with the gear 403;

[0043] It is worth noting that: when the walking measurement is performed: after the adjustment of the measuring mechanism is completed, it is only necessary to start the walking motor 404 to drive the gear 403 to rotate, and under the guidance of the rack 402, the slide 401 and the two measuring mechanisms complete the following walking, and the walking stability is ensured by the guidance of the guide rail 3 and the slide 401, so as to complete the walking measurement of the box beam body 2, improve the measurement efficiency, and at the same time facilitate the adjustment of the position of the measuring mechanism, so as to obtain the measurement effect of different points;

[0044] In the embodiment of the present invention, the two measuring mechanisms each include an electric cylinder 6 installed at the output end of the forward and reverse threaded screw guide module 5, the electric cylinders 6 of the two measuring mechanisms are respectively detachably fixedly connected to the two sliders of the forward and reverse threaded screw guide module 5, a No. 1 measuring arm 7 is installed at the output end of the electric cylinder 6, a No. 1 telescopic rod is installed on one side of the upper surface of the slider of the forward and reverse threaded screw guide module 5, the top of the No. 1 telescopic rod is connected to the No. 1 measuring arm 7, and the No. 1 telescopic rod is used to guide the No. 1 measuring arm 7 during the telescopic process, an adjusting shaft 8 is rotatably penetrated at one end of the No. 1 measuring arm 7, a No. 2 measuring arm 9 is fixedly sleeved on the outside of the adjusting shaft 8, so that the No. 2 measuring arm 9 can complete angular rotation relative to the No. 1 measuring arm 7, and an adjusting motor 10 is installed on one side of the No. 1 measuring arm 7 through a bracket, the output end of the adjusting motor 10 is transmission-connected to the adjusting shaft 8, and the No. 2 measuring arm 9 is driven by the adjusting motor 10 The measuring arm 9 completes the rotation action, and an angle sensor 11 is installed at the other end of the No. 1 measuring arm 7 through a bracket. The angle sensor 11 establishes a connection with the external control end, and the angle sensor 11 is connected to one end of the adjusting shaft 8 to complete the measurement work, and a distance sensor 12 is installed on one side of the No. 1 measuring arm 7 and the No. 2 measuring arm 9 through a bracket. The distance sensor 12 establishes a connection with the external control end, and the adjusting shaft 8 extends out of the No. 1 measuring arm 7 away from the end of the adjusting motor 10, and a gear ring 13 is fixedly sleeved at the end of the adjusting shaft 8 extending out of the No. 1 measuring arm 7, and an arc-shaped toothed plate 14 is slidably installed on one side of the No. 1 measuring arm 7, and a baffle 15 is installed on one side of the No. 1 measuring arm 7, and an adjusting screw 16 is screwed through the baffle 15 through a thread, and the front end of the adjusting screw 16 is rotatably connected to the back of the arc-shaped toothed plate 14, and the arc-shaped toothed plate 14 is meshed and fixed with the gear ring 13;

[0045] It is worth mentioning that when performing adjustment measurement: by setting up two measuring mechanisms, first start the positive and negative threaded screw guide module 5 to drive the two measuring mechanisms to approach each other to a certain distance, and then start the adjustment motor 10 to drive the No. 2 measuring arm 9 to follow the adjustment shaft 8 to complete the angle adjustment, and use the angle sensor 11 to complete real-time monitoring of the rotation angle of the No. 2 measuring arm 9 until the angle between the No. 1 measuring arm 7 and the No. 2 measuring arm 9 reaches the predetermined angle of the box beam body 2. At this time, the adjustment motor 10 stops, and the adjustment screw 16 is rotated at the same time to push the arc-shaped tooth plate 14 forward to engage with the gear ring 13, so as to complete the locking of the No. 2 measuring arm 9 and ensure the stability of subsequent measurements. The measurement needs to be adjusted again later. When adjusting the angle, it is only necessary to separate the arc-shaped tooth plate 14 from the gear ring 13 and start the adjustment motor 10 again. The overall operation is convenient and can be adjusted according to different measuring angles with strong adaptability. Subsequently, the positioning of the measuring mechanism is completed by the electric cylinder 6 and the positive and negative screw guide module 5. At the same time, the distance between the No. 1 measuring arm 7, the No. 2 measuring arm 9 and the measuring surface of the box beam body 2 is determined by the distance measuring sensor 12, so that the No. 1 measuring arm 7, the No. 2 measuring arm 9 and the measuring surface are parallel, or other methods are used to drive the No. 1 measuring arm 7, the No. 2 measuring arm 9 to complete the parallel adjustment with the bottom detection surface of the box beam body 2, such as laser, marking line, etc., to obtain a stable measurement state.

[0046] Among them, each electrical element on the measuring mechanism and the flexible follow-up mechanism is connected to a switch through a wire, and the switch is electrically connected to a controller. The specific structure of the controller is not limited. An absolute encoder is installed on the adjusting motor 10 and the walking motor 404, and the absolute encoder is used to accurately position the adjusting motor 10 and the walking motor 404.

[0047] Embodiment 2: Based on the flexible follow-up mechanism provided in Embodiment 1, this embodiment provides a further technical solution of the flexible follow-up mechanism.

[0048] like Fig.10 and Fig.11 As shown, the two flexible follow-up mechanisms each include a guide rod 17 slidably inserted on the No. 1 measuring arm 7 and the No. 2 measuring arm 9, a wheel seat 18 is installed on the top of the guide rod 17, a contact wheel 19 is rotatably installed on the wheel seat 18, and two No. 2 telescopic rods are installed between the lower surface of the wheel seat 18 and the No. 1 measuring arm 7 and the No. 2 measuring arm 9, the two No. 2 telescopic rods are used to guide the movement of the contact wheel 19, a retaining ring is installed at the bottom end of the guide rod 17 by screwing, and a measuring spring 20 is sleeved on the outside of the guide rod 17, and the measuring springs 20 on the two flexible follow-up mechanisms are correspondingly arranged between the lower surface of the No. 1 measuring arm 7 and the No. 2 measuring arm 9 and the upper surface of the retaining ring;

[0049] It is worth mentioning that: when performing flexible measurement: by providing a flexible follow-up mechanism, when the No. 1 measuring arm 7, the No. 2 measuring arm 9 and the detection surface of the box beam body 2 are measured at a certain distance, the contact wheel 19 is driven to contact the detection surface of the box beam body 2, thereby completing a precise measurement action, and then when the measuring mechanism moves, the contact wheel 19 rotates and walks on the detection surface of the box beam body 2, thereby completing continuous walking measurement, because the contact wheel 19 is limited by the measuring spring 20, so that the contact wheel 19 carries a certain pressure and contacts with the box beam body 2, so when there is a defect on the detection surface of the box beam body 2, the contact wheel 19 will move up and down relative to the No. 1 measuring arm 7 and the No. 2 measuring arm 9, and a displacement will occur. The contact wheel 19 is driven by the measuring spring 20 to reset again and contact with the detection surface of the box beam body 2 after jumping, and the jumping amount will be transmitted to the marking mechanism when the contact wheel 19 jumps up and down, thereby completing the marking action, which is conducive to the subsequent search for structural defects of the box beam body 2.

[0050] Embodiment 3: Based on the marking mechanism provided in Embodiment 1, this embodiment provides a further technical solution of the marking mechanism.

[0051] like Figures 12 to 15 As shown, the two marking mechanisms each include an extrusion circular cavity 21, and the extrusion circular cavities 21 of the two marking mechanisms are respectively mounted on the No. 1 measuring arm 7 and the No. 2 measuring arm 9 through a bracket, and the two ends of the extrusion circular cavity 21 are closed, and an open area 22 is arranged through the middle of the extrusion circular cavity 21, and the two sides of the extrusion circular cavity 21 are divided into a No. 1 area 23 and a No. 2 area 24 through the open area 22, and a feeding pipe for feeding is connected and installed on one side of the No. 1 area 23 and the No. 2 area 24, and a control valve for controlling the opening and closing of the feeding pipe is installed at the end of the feeding pipe. Two trigger plates 25 are symmetrically slidably engaged in the release area 22, piston members 26 are slidably and sealedly installed in the No. 1 area 23 and the No. 2 area 24, one end of the two piston members 26 is fixedly connected to the two trigger plates 25, respectively, and extrusion pipes 27 are installed at both ends of the extrusion circular cavity 21, and nozzles are detachably installed on the top of the two extrusion pipes 27, and a No. 1 one-way valve for leading the liquid out of the extrusion circular cavity 21 in one direction is installed at the ends of the two extrusion pipes 27, and the two extrusion pipes 27 are respectively connected to the No. 1 area 23 and the No. 2 area 24;

[0052] It is worth noting that: when performing follow-up marking: by providing a marking mechanism, after the contact wheel 19 senses the defect position of the box beam body 2, the No. 1 sensing rack 333 is driven to follow and move up or down. During the movement of the No. 1 sensing rack 333, the No. 1 power gear 334 is pushed to complete the rotation, and the power transmission is completed through the No. 2 power gear 335. The acceleration action is completed by the No. 1 power gear 334 and the No. 2 power gear 335, so as to complete the amplification operation of the up and down movement of the contact wheel 19 and improve the sensitivity of perception. At the same time, the number of teeth of the No. 1 power gear 334 and the No. 2 power gear 335 can be adjusted according to needs, so as to complete the constant speed and deceleration actions, for different needs. The second sensing rack 336 is driven to follow the movement through the second power gear 335. Specifically, when the second sensing rack 336 moves upward, the first wedge block 331 and the second wedge block 332 are pushed upward synchronously. When the second wedge block 332 moves upward, the trigger plate 25 corresponding to it is pushed to move. Guided by the inclined surface of the second wedge block 332, the trigger plate 25 and the piston member 26 are pushed forward, so that the pigment stored in the second area 24 is sprayed out through the extrusion pipe 27 and the nozzle, so that a mark appears on the detection surface of the box beam body 2. When the contact wheel 19 is reset, the corresponding piston member 26 is driven to reset through the reset spring 28. Under the reset action, The material tank 34 draws the pigment into the No. 2 zone 24 to complete the automatic feeding. Specifically, when the No. 2 sensing rack 336 moves downward, the trigger plate 25 in contact with the No. 1 wedge block 331 is pushed to move during the downward movement, driving the pigment stored in the No. 1 zone 23 to be sprayed out through the extrusion pipe 27 and the nozzle to complete the marking. At the same time, in order to distinguish the defect conditions of the box beam body 2, pigments of different colors are stored in the No. 1 zone 23 and the No. 2 zone 24, which is beneficial for the staff to quickly know the defect conditions, so that the marking mechanism can complete the follow-up effect with the contact wheel 19, and at the same time, the contact wheel 19 senses the changes in the box beam body 2 to complete the follow-up marking, which is beneficial for searching and easy to use. 336 and the second power gear 335 can be separated. When the contact wheel 19 and the detection surface of the box beam body 2 are adjusted, the second sensing rack 336 is driven to separate from the second power gear 335. At this time, the extrusion plate 29 is driven to reset by the limit spring 32 to avoid erroneous operation of the marking mechanism during the adjustment of the contact wheel 19. After the adjustment of the contact wheel 19 is completed, it is only necessary to rotate the push screw 337 to drive the second sensing rack 336 to move and complete the power connection with the second power gear 335, so as to carry out subsequent marking work. At the same time, the linear movement action of the push screw 337 can be replaced by an electric rod, a cylinder, a linear module, etc., and can be freely configured and used according to different needs.

[0053] In the embodiment of the present invention, two return springs 28 are symmetrically installed on one side of the two trigger plates 25, and a space is reserved in the extrusion circular cavity 21 to allow the return springs 28 to expand and contract. The front ends of the two return springs 28 are in contact with the inner wall of the extrusion circular cavity 21, and the corresponding piston members 26 are driven by the two return springs 28 to move toward the side away from the extrusion pipe 27. In addition, material tanks 34 are symmetrically installed on both sides of the bottom of the extrusion circular cavity 21, and an inlet pipe is installed on one side of the material tank 34. The pigment is fed into the material tank 34 through the inlet pipe, and at the inlet end An on-off valve for controlling the on-off is installed. The two material tanks 34 are connected to the No. 1 area 23 and the No. 2 area 24 through pipelines, and a No. 2 one-way valve for introducing liquid into the No. 1 area 23 and the No. 2 area 24 in one direction is installed on the pipelines at the top of the two material tanks 34. An extrusion plate 29 is slidably penetrated in the middle position of the open area 22, and a slideway cooperating with the extrusion plate 29 is opened on the inner wall of the open area 22. The extrusion plate 29 is located between the two trigger plates 25. A limit plate 30 is installed on one side of the extrusion plate 29, and slides on the limit plate 30. A limit rod 31 is provided, and the bottom of the limit rod 31 on the two marking mechanisms is connected to the upper surface of the No. 1 measuring arm 7 and the No. 2 measuring arm 9 respectively, and a limit spring 32 is sleeved on the outside of the limit rod 31, and the top of the limit spring 32 contacts the limit plate 30, and the extrusion plate 29 is driven to reset to a predetermined position by the limit spring 32. A power piece 33 is installed on one side of the extrusion plate 29, and the power piece 33 is connected to the wheel seat 18. The follow-up cooperation between the wheel seat 18 and the extrusion plate 29 is completed by the power piece 33. A No. 1 wedge block 331 is installed above the extrusion circular cavity 21, and a No. 2 wedge block 332 is installed below the extrusion circular cavity 21 on the other side of the extrusion plate 29. The lowest point of the No. 1 wedge block 331 contacts one of the trigger plates 25, and the lowest point of the No. 2 wedge block 332 contacts the other trigger plate 25. The No. 1 wedge block 331 and the No. 2 wedge block 332 are controlled separately by the up and down movement of the extrusion plate 29, and the two trigger plates 25 are controlled separately by the No. 1 wedge block 331 and the No. 2 wedge block 332.

[0054] In the embodiment of the present invention, the power member 33 includes a No. 1 sensing rack 333 installed on one side of the wheel seat 18, and a No. 1 through area for matching with the No. 1 sensing rack 333 is provided on both the No. 1 measuring arm 7 and the No. 2 measuring arm 9. A No. 1 power gear 334 is rotatably installed on one side of the No. 1 sensing rack 333 through a bracket, and a No. 2 power gear 335 is rotatably installed on one side of the No. 1 power gear 334 through a bracket, and the No. 1 power gear 334 is meshed and connected with the No. 2 power gear 335, and the number of teeth of the No. 1 power gear 334 is greater than the number of teeth of the No. 2 power gear 335, thereby completing the acceleration action, and a No. 2 sensing rack 334 is provided on one side of the bottom of the extrusion plate 29. Rack 336, and No. 2 passing areas for No. 2 sensing rack 336 are penetrated on both No. 1 measuring arm 7 and No. 2 measuring arm 9, and a pushing screw 337 is threadedly inserted through the extrusion plate 29, and the front end of the pushing screw 337 is rotatably connected to the back of the extrusion plate 29, and a guide rod is slidably inserted through the extrusion plate 29, one end of the guide rod is fixedly connected to the back of the No. 2 sensing rack 336, and the position of the No. 2 sensing rack 336 is adjusted by pushing the screw 337, and the No. 2 sensing rack 336 is meshed with the No. 2 power gear 335, and the power is transmitted to the extrusion plate 29 through the No. 1 power gear 334 and the No. 2 power gear 335.

[0055] The present invention provides an angle measuring device for a cast-in-place box girder, and the specific working principle is as follows: firstly, the box girder body 2 is correspondingly hoisted on two box girder seats 1, and the box girder body 2 is limited by the two box girder seats 1, which is convenient for subsequent measurement;

[0056] Then, the positive and negative threaded screw guide rail modules 5 are started to drive the two measuring mechanisms to approach and move away from each other, so as to complete the measurement of the box beam body 2 adapted to different sizes. After the two measuring mechanisms are driven to the predetermined positions, the two measuring mechanisms are adjusted to the predetermined angles according to the different angles of the box beam body 2, so as to facilitate the subsequent continuous measurement work. The positions of the two measuring mechanisms are fine-tuned by the electric cylinder 6, so that the two measuring mechanisms and the bottom of the box beam body 2 are detected at a certain distance. On this basis, the two measuring mechanisms use two flexible follow-up mechanisms to complete flexible contact with the box beam body 2. Such a design can avoid the damage caused by the rigid contact between the measuring mechanism and the box beam body 2 while ensuring a stable measurement effect. At the same time, it is conducive to completing the measurement action in the walking state, which is conducive to improving the measurement efficiency, so as to complete the flexible follow-up measurement. After that, it is only necessary to start the walking member 4 to drive the two measuring mechanisms to complete the walking under the guidance of the two guide rails 3, thereby completing the rapid measurement of the box beam body 2 and improving the measurement efficiency.

[0057] At the same time, two marking mechanisms and two flexible follow-up mechanisms are used to complete the linkage. Therefore, when the angle of the box girder body 2 is measured to be abnormal, the marking mechanism is driven to complete the follow-up marking, which is beneficial for the staff to subsequently know the abnormal position of the box girder body 2, facilitate subsequent re-inspection, and facilitate the discovery of structural defects of the box girder body 2. It is convenient for the subsequent transformation and upgrading of the box girder mold, which improves the qualified rate of the box girder body 2 and greatly reduces the difficulty of manual measurement.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An angle measuring device for a cast-in-place box girder, comprising two box girder seats (1), on which a box girder body (2) is supported, characterized in that: Two guide rails (3) are symmetrically mounted on both sides of the two box beam seats (1); a running member (4) is mounted on each of the two guide rails (3); a positive and negative threaded screw guide rail module (5) is mounted on both of the two running members (4); and a measuring mechanism is mounted on both sliders of the positive and negative threaded screw guide rail module (5); the two measuring mechanisms are symmetrically arranged, and synchronous measurement of the box beam body (2) is completed by the two measuring mechanisms; A flexible follow-up mechanism is added to both measuring mechanisms, and the two flexible follow-up mechanisms cooperate with the box beam body (2) to complete the flexible follow-up measuring action. At the same time, a marking mechanism is added to both flexible follow-up mechanisms, and the two marking mechanisms are respectively linked with the two flexible follow-up mechanisms. During the flexible follow-up mechanism detection action, the marking mechanism is synchronously driven to complete the follow-up marking action. The two measuring mechanisms each comprise an electric cylinder (6) mounted at the output end of the forward and reverse threaded screw guide rail module (5); a first measuring arm (7) is mounted at the output end of the electric cylinder (6); an adjusting shaft (8) is rotatably inserted through one end of the first measuring arm (7); a second measuring arm (9) is fixedly sleeved outside the adjusting shaft (8); and an adjusting motor (10) is mounted on one side of the first measuring arm (7) via a bracket; the output end of the adjusting motor (10) is drivingly connected to the adjusting shaft (8); The second measuring arm (9) is driven to rotate by adjusting the motor (10), and an angle sensor (11) is installed at the other end of the first measuring arm (7) through a bracket, and the angle sensor (11) is connected to one end of the adjusting shaft (8) to complete the measurement work; The two flexible follower mechanisms each include a guide rod (17) slidably mounted on the first measuring arm (7) and the second measuring arm (9), a wheel seat (18) being mounted on the top of the guide rod (17), a contact wheel (19) being rotatably mounted on the wheel seat (18), a retaining ring being mounted on the bottom end of the guide rod (17) by screwing, and a measuring spring (20) being sleeved on the outside of the guide rod (17); The two marking mechanisms each comprise an extrusion circular cavity (21), the two ends of the extrusion circular cavity (21) being closed, an open area (22) being provided through the middle of the extrusion circular cavity (21), the two sides of the extrusion circular cavity (21) being divided into a first area (23) and a second area (24) by the open area (22), two trigger plates (25) being symmetrically slidably engaged in the open area (22), piston members (26) being slidably and sealingly installed in the first area (23) and the second area (24), one end of the two piston members (26) being fixedly connected to the two trigger plates (25), respectively, an extrusion pipe (27) being connected and installed at both ends of the extrusion circular cavity (21), a nozzle being detachably installed at the top of the two extrusion pipes (27), and the two extrusion pipes (27) being connected to the first area (23) and the second area (24), respectively.

2. The angle measuring device of a cast-in-place box girder according to claim 1, characterized in that: The two walking members (4) each include a slide member (401), the slide member (401) correspondingly slidingly engaged on the guide rail (3), and racks (402) are concealed and installed on the upper surfaces of the two guide rails (3), a gear (403) is rotatably installed on one side of the slide member (401) through a bracket, the gear (403) is meshingly connected with the rack (402), and a walking motor (404) is installed on one side of the slide member (401) through a bracket, and the output end of the walking motor (404) is drivingly connected with the gear (403).

3. The angle measuring device of a cast-in-place box girder according to claim 2, characterized in that: A gear ring (13) is fixedly sleeved on one end of the adjustment shaft (8) extending from the first measuring arm (7), an arc-shaped toothed plate (14) is slidably mounted on one side of the first measuring arm (7), and a baffle (15) is mounted on one side of the first measuring arm (7), an adjustment screw (16) is threadedly screwed through the baffle (15), a front end of the adjustment screw (16) is rotatably connected to the back of the arc-shaped toothed plate (14), and the arc-shaped toothed plate (14) is meshed and fixed with the gear ring (13).

4. The angle measuring device for a cast-in-place box girder according to claim 3, characterized in that: Two return springs (28) are symmetrically mounted on one side of the two trigger plates (25), and the front ends of the two return springs (28) are in contact with the inner wall of the extrusion circular cavity (21). The two return springs (28) drive the corresponding piston members (26) to move toward a side away from the extrusion pipe (27).

5. The angle measuring device for a cast-in-place box girder according to claim 4, characterized in that: An extrusion plate (29) is slidably inserted through the middle of the open area (22), and the extrusion plate (29) is located between the two trigger plates (25). A limit plate (30) is installed on one side of the extrusion plate (29), and a limit rod (31) is slidably inserted through the limit plate (30). The bottoms of the limit rods (31) on the two marking mechanisms are respectively connected to the upper surfaces of the first measuring arm (7) and the second measuring arm (9), and a limit spring (32) is sleeved on the outside of the limit rod (31). The extrusion plate (29) is driven to reset to a predetermined position by the limit spring (32). A power member (33) is installed on one side of the extrusion plate (29), and the power member (33) is connected to the wheel seat (18). The follow-up cooperation between the wheel seat (18) and the extrusion plate (29) is completed by the power member (33).

6. The angle measuring device for a cast-in-place box girder according to claim 5, characterized in that: A first wedge block (331) is installed on one side of the extrusion plate (29) above the extrusion circular cavity (21), and a second wedge block (332) is installed on the other side of the extrusion plate (29) below the extrusion circular cavity (21). The lowest point of the first wedge block (331) contacts one of the trigger plates (25), and the lowest point of the second wedge block (332) contacts the other trigger plate (25). The first wedge block (331) and the second wedge block (332) are controlled separately by the extrusion plate (29) moving up and down, and the two trigger plates (25) are controlled separately by the first wedge block (331) and the second wedge block (332).

7. The angle measuring device for a cast-in-place box girder according to claim 6, characterized in that: The power member (33) comprises a first sensing rack (333) mounted on one side of the wheel seat (18); a first power gear (334) is rotatably mounted on one side of the first sensing rack (333) via a bracket; a second power gear (335) is rotatably mounted on one side of the first power gear (334) via a bracket; the first power gear (334) is meshingly connected with the second power gear (335); a second sensing rack (336) is arranged on one side of the bottom of the extrusion plate (29); a pushing screw (337) is threadedly screwed through the extrusion plate (29); the front end of the pushing screw (337) is rotatably connected with the back of the extrusion plate (29); the position of the second sensing rack (336) is adjusted by the pushing screw (337); the second sensing rack (336) is meshed with the second power gear (335); and power is transmitted to the extrusion plate (29) via the first power gear (334) and the second power gear (335).

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