An automatic dimension measuring device and method for a box girder formwork

Abstract

The present invention discloses an automatic size measuring device and method for a box girder formwork, which relates to the technical field of box girder formwork size measurement. A second slider is spirally connected to the outside of the fourth screw rod. One end of the second slider is fixedly connected with a measuring mechanism. Moving mechanisms are arranged on the inner sides of both ends of the moving frame. The bottom end of the moving mechanism is provided with a box girder formwork. With the coordinated operation of components such as the measuring mechanism and the second laser rangefinder, the raised parts of the box girder formwork panel can be quickly locked. The measuring mechanism can not only accurately measure the distance from the raised part to the opposite panel, but also mark the raised part, providing convenience for subsequent maintenance work. This detection method realizes the full-scan of the formwork panel, accurately measures the size of the panel, effectively avoids potential hazards to the quality of concrete pouring caused by difficult-to-detect raised parts, significantly reduces the risk of size deviation, and comprehensively guarantees the quality of the box girder formwork and the concrete pouring effect.

Description

Technical Field

[0001] The present invention relates to the technical field of box girder formwork size measurement, and particularly relates to an automatic box girder formwork size measurement device and method. Background Technique

[0002] A box girder formwork is a model structure used for pouring concrete box girders, which forms the shape, provides support, and ensures that the shape and size meet the design requirements. In terms of materials, common ones include steel formwork, wooden formwork, and bamboo plywood formwork, etc. Steel formwork has high strength, large stiffness, and many turnover times; wooden formwork and bamboo plywood formwork are relatively light, easy to process and assemble. In terms of structure, it consists of a panel, a support system, and connecting parts. The panel is in direct contact with the concrete and determines the surface quality of the box girder; the support system ensures that the formwork remains stable during the concrete pouring process and bears the lateral pressure of the concrete and construction loads; the connecting parts are used to connect various parts of the formwork to ensure the overall sealing and stability of the formwork.

[0003] Before concrete pouring, it is crucial to accurately measure the size of the box girder formwork. After long-term use, the box girder formwork is affected by factors such as mechanical wear, cumulative deformation, corrosion and rust, and thermal expansion and contraction. Local protrusions are likely to appear on the panel. Although these protrusions are hidden, they will significantly affect the formed size after concrete pouring, and further seriously damage the pouring quality of the concrete. Currently, when measuring, workers often only focus on the edge dimensions of the box girder formwork and ignore the overall detection and measurement of the panel of the box girder formwork with a large area, which further increases the risk of size deviation and makes the hidden protrusion area a potential threat to the concrete pouring quality. Therefore, an automatic box girder formwork size measurement device and method are proposed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic box girder formwork size measurement device and method to solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] An automatic size measuring device and method for a box girder formwork, comprising a moving frame and a second slider. One end of the moving frame is fixedly connected to a seventh motor, the end of the main shaft of the seventh motor is fixedly connected to a fourth screw rod, and the fourth screw rod is rotationally connected to the moving frame. A second slider is helically connected to the outside of the fourth screw rod. A third guide shaft is slidably connected to the inside of the second slider, and the third guide shaft is fixedly connected to the moving frame. One end of the second slider is fixedly connected to a measuring mechanism. Moving mechanisms are arranged on the inner sides of both ends of the moving frame. A box girder formwork is arranged at the bottom end of the moving mechanism. An auxiliary pushing mechanism is arranged at the edge of the box girder formwork. A second laser rangefinder is fixedly connected to the inside of the auxiliary pushing mechanism. A transition mechanism is arranged at one end of the measuring mechanism. A controller is fixedly connected to one end of the moving frame.

[0007] Preferably, the measuring mechanism includes a first motor fixedly connected to the second slider. The end of the main shaft of the first motor is fixedly connected to a first connecting seat. One end of the first connecting seat is fixedly connected to a second motor. The end of the main shaft of the second motor is fixedly connected to a second connecting seat, and the second connecting seat is rotationally connected to the first connecting seat. A first connecting frame is fixedly connected to the inside of the second connecting seat. A flipping assembly is arranged at the bottom end of the first connecting frame. One end of the flipping assembly is fixedly connected to a second connecting frame. A fourth motor and a second guide shaft are fixedly connected to one end of the second connecting frame. The end of the main shaft of the fourth motor is fixedly connected to a third screw rod. The other ends of the third screw rod and the second guide shaft are both fixedly connected to the transition mechanism, and the third screw rod and the second guide shaft are respectively fixedly connected to a second screw rod and a first guide shaft through the transition mechanism, and the second screw rod and the first guide shaft are respectively rotationally and fixedly connected to the first connecting frame. A first slider is helically connected to the outside of the second screw rod, and the first slider is slidably connected to the second guide shaft. One end of the first slider is fixedly connected to a fifth motor. The end of the main shaft of the fifth motor is fixedly connected to a connecting plate. One end of the connecting plate is fixedly connected to a first fixing plate. One end of the first fixing plate is fixedly connected to a second fixing plate. First laser rangefinders are fixedly connected to both ends of the second fixing plate. A marking assembly is fixedly connected to one end of the first fixing plate.

[0008] Preferably, the flipping assembly includes a transition frame fixedly connected to the first connecting frame, and the transition frame is rotationally connected to the second connecting frame. A third motor is fixedly connected to one end of the transition frame, and the end of the main shaft of the third motor is fixedly connected to the second connecting frame.

[0009] Preferably, the marking component includes a third fixing plate fixedly connected to the first fixing plate. The number of the third fixing plates is two. One end of one of the third fixing plates is fixedly connected to a sixth motor. The end of the main shaft of the sixth motor is fixedly connected to a rotating cylinder, and the rotating cylinder is rotatably connected to the third fixing plate. One end of the rotating cylinder is fixedly connected to an electric telescopic rod, and the other end of the electric telescopic rod is fixedly connected to a dust storage cylinder. One end of the dust storage cylinder is spirally connected to a threaded ring, and one end of the threaded ring is fixedly connected to a cloth.

[0010] Preferably, a first spring is fixedly connected to the inner side of the dust storage cylinder. The other end of the first spring is fixedly connected to a push plate, and the push plate is slidably connected to the dust storage cylinder.

[0011] Preferably, the auxiliary pushing mechanism includes an auxiliary shell. One end of the auxiliary shell is fixedly connected to an auxiliary frame. First guide wheels are rotatably connected to the inner sides of the auxiliary shell and the auxiliary frame. A first screw rod is rotatably connected to the inner side of the auxiliary shell. A moving plate is spirally connected to the outer side of the first screw rod. One end of the moving plate is fixedly connected to a clamping seat. The second laser rangefinder is placed inside the clamping seat. A limiting screw rod is spirally connected to the inner side of one end of the clamping seat, and one end of the limiting screw rod is in contact with the second laser rangefinder. An alarm is fixedly connected to one end of the auxiliary shell.

[0012] Preferably, the moving mechanism includes rollers rotatably connected to the moving frame. One end of the moving frame is fixedly connected to an eighth motor. The end of the main shaft of the eighth motor is fixedly connected to one of the rollers. One end of the moving frame is rotatably connected to a guiding frame. A second guide wheel is rotatably connected to one end of the guiding frame. A bolt is fixedly connected to one end of the guiding frame, and the bolt is rotatably connected to the moving frame. A limiting ring is spirally connected to the outer side of the bolt, and the limiting ring is in contact with the moving frame.

[0013] Preferably, the transition mechanism includes a connecting ring fixedly connected to both the second guiding shaft and the third screw rod. A bearing is fixedly connected to the inner side of the connecting ring. A turntable is fixedly connected to the inner side of the bearing. A transition seat is fixedly connected to the top of the turntable. A transition plate is rotatably connected to the inner side of the transition seat, and different positions of the transition plates are respectively fixedly connected to the second screw rod and the first guiding shaft. Card slots are respectively formed in the inner sides around the turntable. A telescopic cylinder is fixedly connected to the inner side of the connecting ring. A clamping head is fixedly connected to the other end of the telescopic cylinder, and the clamping head is engaged with the turntable through the card slot. A second spring is arranged on the outer side of the telescopic cylinder, and both ends of the second spring are respectively fixedly connected to the connecting ring and the clamping head.

[0014] Preferably, the rotation center line between the transition plate and the transition seat is the same as the rotation center line between the second connecting frame and the transition frame.

[0015] Preferably, the usage method is as follows: S1: Place the auxiliary pushing mechanism at the edge of the box girder formwork, and move the second laser rangefinder along the box girder formwork through the auxiliary pushing mechanism, and make the light emitted by the second laser rangefinder adhere to the panel of the box girder formwork;

[0016] S2: When the second laser rangefinder crosses the area where the moving mechanism can block the light emitted by the second laser rangefinder, place the moving frame and the moving mechanism above the box girder formwork;

[0017] S3: When the light emitted by the second laser rangefinder irradiates the protrusion on the surface of the panel, an alarm is issued, and the information is transmitted to the controller. The controller controls the moving mechanism to drive the measuring mechanism to move to the protrusion, and the measuring mechanism measures the distance between the protrusion and the relative panel. At the same time, the measuring mechanism makes a mark at the protrusion through the inner marking component.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. An automatic size measuring device and method for a box girder formwork. With the coordinated operation of components such as the measuring mechanism and the second laser rangefinder, it can quickly lock the protruding parts of the panel of the box girder formwork. The measuring mechanism can not only accurately measure the distance from the protruding part to the relative panel, but also mark the protruding part, providing convenience for subsequent maintenance work. This detection method realizes a comprehensive scan of the formwork panel, accurately measures the size of the panel, effectively avoids potential problems in concrete pouring quality caused by difficult detection of protrusions, significantly reduces the risk of size deviation, and comprehensively ensures the quality of the box girder formwork and the concrete pouring effect.

[0020] 2. An automatic size measuring device and method for a box girder formwork. Through the carefully designed transition mechanism, the measuring mechanism can flexibly switch the detection orientation. It can not only conveniently and accurately detect and measure the side of the panel, but also easily adjust to the bottom of the panel for comprehensive measurement operations. This ingenious design greatly expands the application range of the device, significantly improves its applicability in different detection scenarios, and provides an efficient and comprehensive solution for diverse detection requirements of box girder formworks.

[0021] 3. An automatic size measuring device and method for a box girder formwork. An auxiliary pushing mechanism is provided, which can provide stable assistance for the staff to move the first laser rangefinder along the panel edge, effectively avoid measurement errors caused by moving deviations, and ensure the accurate and efficient development of measurement work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Figure 1 It is a schematic diagram of the overall structure of an automatic size measuring device and method for a box girder formwork of the present invention.

[0024] Figure 2 It is a schematic diagram of the installation structure of the first slider of an automatic size measuring device and method for a box girder formwork of the present invention.

[0025] Figure 3 It is a schematic diagram of the installation structure when the third screw of an automatic size measuring device and method for a box girder formwork of the present invention is used horizontally.

[0026] Figure 4 It is an exploded installation structure schematic diagram of the first motor of an automatic size measuring device and method for a box girder formwork of the present invention.

[0027] Figure 5 It is a schematic diagram of the installation structure of the rotating cylinder of an automatic size measuring device and method for a box girder formwork of the present invention.

[0028] Figure 6 It is a schematic diagram of the installation structure of the transition frame of an automatic size measuring device and method for a box girder formwork of the present invention.

[0029] Figure 7 It is a schematic diagram of the installation structure of the first spring of an automatic size measuring device and method for a box girder formwork of the present invention.

[0030] Figure 8 It is a schematic diagram of the installation structure of the connecting ring of an automatic size measuring device and method for a box girder formwork of the present invention.

[0031] Figure 9 It is a schematic diagram of the installation structure of the card slot of an automatic size measuring device and method for a box girder formwork of the present invention.

[0032] Figure 10 It is a schematic diagram of the installation structure of the turntable of an automatic size measuring device and method for a box girder formwork of the present invention.

[0033] Figure 11 It is a schematic diagram of the installation structure of the second spring of an automatic size measuring device and method for a box girder formwork of the present invention.

[0034] Figure 12Schematic diagram of the installation structure of the moving plate of an automatic size measuring device and method for a box girder formwork according to the present invention.

[0035] Figure 13 For an automatic size measuring device and method for a box girder formwork according to the present invention Figure 1 Schematic diagram of the structure at position A.

[0036] In the figure: 1. Auxiliary pushing mechanism; 101. Auxiliary shell; 102. Moving plate; 103. First screw; 104. Auxiliary frame; 105. First guide wheel; 106. Clamping seat; 107. Limit screw; 108. Alarm.

[0037] 2. Moving mechanism; 201. Bolt; 202. Eighth motor; 203. Roller; 204. Guide frame; 205. Second guide wheel; 206. Limit ring.

[0038] 3. Measuring mechanism; 301. First motor; 302. First connecting seat; 303. Second connecting seat; 304. Second motor; 305. First connecting frame; 306. Second screw; 307. First guide shaft; 308. Second connecting frame; 309. Second guide shaft; 310. Third screw; 311. Third motor; 312. Transition frame; 313. First slider; 314. Fourth motor; 315. Fifth motor; 316. Connecting plate; 317. First fixing plate; 318. Second fixing plate; 319. Third fixing plate; 320. Sixth motor; 321. First laser rangefinder; 322. Electric telescopic rod; 323. Ash storage cylinder; 324. Cloth; 325. Threaded ring; 326. Push plate; 327. First spring; 328. Rotary cylinder.

[0039] 4. Transition mechanism; 401. Transition plate; 402. Transition seat; 403. Turntable; 404. Connecting ring; 405. Bearing; 406. Card slot; 407. Second spring; 408. Telescopic cylinder; 409. Chuck.

[0040] 5. Second laser rangefinder; 6. Seventh motor; 7. Fourth screw; 8. Second slider; 9. Third guide shaft; 10. Box girder formwork; 11. Controller; 12. Moving frame. Detailed implementation manner

[0041] The present invention will be further described below in conjunction with specific embodiments. Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0042] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, in the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The present invention will be further described below in conjunction with specific embodiments.

[0043] Embodiment

[0044] As Figures 1 - 13 shown, a device and method for automatically measuring the size of a box girder formwork includes a moving frame 12 and a second slider 8. One end of the moving frame 12 is fixedly connected to a seventh motor 6. The end of the main shaft of the seventh motor 6 is fixedly connected to a fourth screw rod 7, and the fourth screw rod 7 is rotatably connected to the moving frame 12. A second slider 8 is helically connected to the outside of the fourth screw rod 7. A third guide shaft 9 is slidably connected to the inside of the second slider 8, and the third guide shaft 9 is fixedly connected to the moving frame 12. One end of the second slider 8 is fixedly connected to a measuring mechanism 3. The seventh motor 6 drives the fourth screw rod 7 to rotate helically inside the second slider 8, so that the second slider 8 can drive the measuring mechanism 3 to move in the horizontal direction. Moving mechanisms 2 are arranged on the inner sides of both ends of the moving frame 12. The bottom ends of the moving mechanisms 2 are provided with a box girder formwork 10. An auxiliary pushing mechanism 1 is arranged at the edge of the box girder formwork 10. A second laser rangefinder 5 is fixedly connected to the inside of the auxiliary pushing mechanism 1. A transition mechanism 4 is arranged at one end of the measuring mechanism 3. One end of the moving frame 12 is fixedly connected to a controller 11. The controller 11 serves as the core control unit and precisely controls each electrical appliance through a preset program algorithm and signal transmission mechanism.

[0045] As a further improvement of the present invention, as Figure 1 , Figure 2 ,Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the measuring mechanism 3 includes a first motor 301 fixedly connected to the second slider 8. The end of the main shaft of the first motor 301 is fixedly connected to a first connecting seat 302. One end of the first connecting seat 302 is fixedly connected to a second motor 304. The end of the main shaft of the second motor 304 is fixedly connected to a second connecting seat 303, and the second connecting seat 303 is rotatably connected to the first connecting seat 302. The inner side of the second connecting seat 303 is fixedly connected to a first connecting frame 305. The second motor 304 can drive the first connecting frame 305 and the second connecting frame 308 to rotate through the second connecting seat 303. When there is an inner mold inside the box girder formwork 10, the first connecting frame 305 and the second connecting frame 308 are flipped above the box girder formwork 10, and the second slider 8 moves the first connecting frame 305 and the second connecting frame 308 to the side of the other panel through the first motor 301, the first connecting seat 302, and the second connecting seat 303, so as to facilitate the measurement of the other panel. A flipping assembly is provided at the bottom end of the first connecting frame 305. The flipping assembly includes a transition frame 312 fixedly connected to the first connecting frame 305, and the transition frame 312 is rotatably connected to the second connecting frame 308. One end of the transition frame 312 is fixedly connected to a third motor 311, and the end of the main shaft of the third motor 311 is fixedly connected to the second connecting frame 308. One end of the second connecting frame 308 is fixedly connected to a fourth motor 314 and a second guide shaft 309. The end of the main shaft of the fourth motor 314 is fixedly connected to a third screw 310. The other ends of the third screw 310 and the second guide shaft 309 are both fixedly connected to the transition mechanism 4, and the third screw 310 and the second guide shaft 309 are respectively fixedly connected to a second screw 306 and a first guide shaft 307 through the transition mechanism 4, and the second screw 306 and the first guide shaft 307 are respectively rotatably and fixedly connected to the first connecting frame 305. A first slider 313 is helically connected to the outside of the second screw 306, and the first slider 313 is slidably connected to the second guide shaft 309. One end of the first slider 313 is fixedly connected to a fifth motor 315. The end of the main shaft of the fifth motor 315 is fixedly connected to a connecting plate 316. One end of the connecting plate 316 is fixedly connected to a first fixing plate 317. One end of the first fixing plate 317 is fixedly connected to a second fixing plate 318. Both ends of the second fixing plate 318 are fixedly connected to a first laser rangefinder 321. The fifth motor 315 can adjust the position of the first laser rangefinder 321 through the connecting plate 316 and the second fixing plate 318, and the connecting plate 316 also plays a role in distance compensation, so that the first laser rangefinder 321 measures the distance to the edge of the box girder formwork 10. At the same time, since the thicknesses of the first laser rangefinder 321 and the second fixing plate 318 are both determined, when measuring the distance between adjacent sides, the distance measured by the two first laser rangefinders 321 plus the thicknesses of the two first laser rangefinders 321 and the thickness of the second fixing plate 318 can obtain the distance between adjacent sides.One end of the first fixing plate 317 is fixedly connected with a marking component. The first laser rangefinder 321 has diverse functions and can measure the distance between the side surfaces of the panel, the distance between the side surface of the panel and the inner mold, and the distance between the bottom surface of the panel and the inner mold. Here, taking the measurement of the distance between the side surfaces of the panel as an example, the details are introduced as follows. During the measurement, first start the third motor 311 to drive the second connecting frame 308 to rotate around the transition frame 312. At the same time, the second connecting frame 308 drives the second guiding shaft 309 and the third screw rod 310 to rotate synchronously until the third screw rod 310 and the second guiding shaft 309 are parallel to the corresponding second screw rod 306 and the first guiding shaft 307. At this time, the third motor 311 stops operating. Meanwhile, the first motor 301 adjusts the first connecting frame 305 and the second connecting frame 308 through the first connecting seat 302 and the second connecting seat 303 to make them parallel to the side surface of the panel, ensuring the accuracy when the first laser rangefinder 321 moves along the side surface of the panel for measurement;

[0046] When the second laser rangefinder 5 detects a protrusion on the surface of the panel, the moving mechanism 2 starts to operate. With the assistance of the second slider 8, the moving frame 12 drives the first connecting frame 305 and the second connecting frame 308 to move towards the protruding area of the panel under the coordinated action of the first motor 301, the first connecting seat 302, and the second connecting seat 303. During this process, the fourth motor 314 drives the third screw rod 310, and through the transition mechanism 4, drives the second screw rod 306 to rotate in a spiral manner within the first slider 313, causing the first slider 313 to move the first laser rangefinder 321 to the side of the protrusion via the fifth motor 315, the connecting plate 316, and the second fixing plate 318. When the first laser rangefinder 321 moves downward from top to bottom, it continuously measures the distance from the panel. Once it detects that the distance becomes smaller, it indicates that it has reached the position of the protrusion. At this time, the fourth motor 314 stops working. By calculating the difference between the distance measured by the first laser rangefinder 321 at the normal position of the panel and the distance at the position of the protrusion, the deviation amount of the panel size can be obtained. Finally, the marking component is used to mark the position of the protrusion for subsequent maintenance.

[0047] As a further improvement of the present invention, as Figure 5 and Figure 7As shown, the marking component includes a third fixing plate 319 fixedly connected to the first fixing plate 317. The number of the third fixing plates 319 is two. One end of one of the third fixing plates 319 is fixedly connected to a sixth motor 320. The end of the main shaft of the sixth motor 320 is fixedly connected to a rotating cylinder 328. The rotating cylinder 328 is rotatably connected to the third fixing plate 319. One end of the rotating cylinder 328 is fixedly connected to an electric telescopic rod 322. The other end of the electric telescopic rod 322 is fixedly connected to an ash storage cylinder 323. One end of the ash storage cylinder 323 is spirally connected to a threaded ring 325. One end of the threaded ring 325 is fixedly connected to a cloth 324. The cloth 324 is a cloth with gaps, such as non-woven fabric, etc. The sixth motor 320 can achieve a 180-degree flip through the rotating cylinder 328 and the electric telescopic rod 322, thereby adjusting the working position of the ash storage cylinder 323 so that the ash storage cylinder 323 can mark different sides; during marking, the electric telescopic rod 322 drives the ash storage cylinder 323 to make the cloth 324 quickly and tightly fit; when the cloth 324 stops on the convex surface, due to inertia, the white ash inside the ash storage cylinder 323 will adhere to the convex surface through the gaps on the surface of the cloth 324, thereby realizing the marking of the convexity.

[0048] As a further improvement of the present invention, as Figure 7 shown, a first spring 327 is fixedly connected to the inside of the ash storage cylinder 323. The other end of the first spring 327 is fixedly connected to a push plate 326. The push plate 326 is slidably connected to the ash storage cylinder 323. The first spring 327 will push the white ash inside the ash storage cylinder 323 in the direction close to the cloth 324 through the push plate 326 to ensure the normal operation of the cloth 324.

[0049] As a further improvement of the present invention, as Figure 1 and Figure 12As shown in the figure, the auxiliary pushing mechanism 1 includes an auxiliary housing 101. One end of the auxiliary housing 101 is fixedly connected to an auxiliary frame 104. The inner sides of both the auxiliary housing 101 and the auxiliary frame 104 are rotatably connected to a first guiding wheel 105. The inner side of the auxiliary housing 101 is rotatably connected to a first screw rod 103. A moving plate 102 is spirally connected to the outer side of the first screw rod 103. One end of the moving plate 102 is fixedly connected to a clamping seat 106. The second laser rangefinder 5 is placed inside the clamping seat 106. One end of the inner side of the clamping seat 106 is spirally connected to a limiting screw rod 107, and one end of the limiting screw rod 107 is in contact with the second laser rangefinder 5. The second laser rangefinder 5 can be limited and fixed by the limiting screw rod 107, which is convenient for the installation and disassembly of the second laser rangefinder 5. One end of the auxiliary housing 101 is fixedly connected to an alarm 108. First, the second laser rangefinder 5 is used to measure the overall length of the box girder formwork 10. The measured data will be automatically transmitted to the controller 11 through a wireless signal. The controller 11 records this data as a reference distance for subsequent detection. Subsequently, the first guiding wheels 105 on the inner sides of the auxiliary housing 101 and the auxiliary frame 104 are closely attached to the surface of the box girder formwork 10. The first guiding wheels 105 can play a role in guiding and limiting the second laser rangefinder 5. By adjusting the first screw rod 103, the position of the moving plate 102 is changed, and the moving plate 102 drives the second laser rangefinder 5 to move through the clamping seat 106, ensuring that the light emitted by the second laser rangefinder 5 can always adhere to the panel of the box girder formwork 10. At this time, the staff can push the first guiding wheel 105 to drive the second laser rangefinder 5 to move along the edge of the box girder formwork 10. When the light emitted by the second laser rangefinder 5 touches the protrusion on the panel surface, its measured real-time length will be immediately transmitted to the controller 11 through a wireless signal. The controller 11 compares and analyzes the measured size with the previously recorded reference size. Once an abnormality is found, it immediately controls the alarm 108 to sound an alarm. After hearing the alarm, the staff stops moving the second laser rangefinder 5, which indicates that there is a protrusion on the panel surface and the size of the protrusion relative to the panel does not meet the requirements for concrete pouring. Immediately afterwards, the controller 11 automatically starts the moving mechanism 2 to start subsequent work, and the measured size is also stored inside the controller 11 as a reference basis for the moving distance of the moving mechanism 2.

[0050] As a further improvement of the present invention, as Figure 1 and Figure 3As shown in the figure, the moving mechanism 2 includes rollers 203 rotatably connected to the moving frame 12. One end of the moving frame 12 is fixedly connected to an eighth motor 202, and the end of the main shaft of the eighth motor 202 is fixedly connected to one of the rollers 203. One end of the moving frame 12 is rotatably connected to a guiding frame 204. One end of the guiding frame 204 is rotatably connected to a second guiding wheel 205. The second guiding wheel 205 plays a guiding role to prevent the moving frame 12 from deviating when moving on the top of the box girder formwork 10. One end of the guiding frame 204 is fixedly connected to a bolt 201, and the bolt 201 is rotatably connected to the moving frame 12. A limiting ring 206 is spirally connected to the outside of the bolt 201, and the limiting ring 206 is in contact with the moving frame 12. The guiding frame 204 and the moving frame 12 can rotate relative to each other, whereby the inclination angle of the second guiding wheel 205 can be flexibly adjusted to ensure that the second guiding wheel 205 adapts to panels with various inclinations, significantly improving the applicability of the device. In addition, relying on the friction force generated between the limiting ring 206 and the moving frame 12, the relative positions of the guiding frame 204 and the moving frame 12 can be stably limited; before the device starts working, the second guiding wheel 205 needs to be accurately placed at the edge of the end of the box girder formwork 10. When the moving mechanism 2 receives an instruction issued by the controller 11, the eighth motor 202 immediately drives the corresponding roller 203 to rotate, driving the moving frame 12 to move. The moving distance is based on the distance from the protrusion to the edge measured by the second laser rangefinder 5. At the same time, the moving frame 12 pushes the measuring mechanism 3 forward synchronously through the second slider 8 until it reaches the protruding part of the panel, preparing for subsequent measurement operations.

[0051] As a further improvement of the present invention, as Figure 8 , Figure 9 , Figure 10 and Figure 11As shown in the figure, the transition mechanism 4 includes a connection ring 404 fixedly connected to both the second guide shaft 309 and the third screw 310. An inner side of the connection ring 404 is fixedly connected with a bearing 405, and an inner side of the bearing 405 is fixedly connected with a turntable 403. A top end of the turntable 403 is fixedly connected with a transition seat 402. An inner side of the transition seat 402 is rotatably connected with a transition plate 401, and transition plates 401 at different positions are respectively fixedly connected with the second screw 306 and the first guide shaft 307. Slots 406 are formed in inner sides of four circumferences of the turntable 403. An inner side of the connection ring 404 is fixedly connected with a telescopic cylinder 408. The other end of the telescopic cylinder 408 is fixedly connected with a chuck 409, and the chuck 409 is engaged with the turntable 403 through the slot 406. A second spring 407 is arranged outside the telescopic cylinder 408, and two ends of the second spring 407 are respectively fixedly connected with the connection ring 404 and the chuck 409. The number of chucks 409 matches the number of slots 406, and the numbers of both can be independently selected according to requirements. At the same time, the elastic force of the second spring 407 can also be designed and selected as needed. In this way, the third screw 310 can overcome the acting force between the second screw 306 and the first slider 313 by means of the acting force between the connection ring 404, the chuck 409 and the slot 406, drive the second screw 306 to rotate spirally inside the first slider 313, and the first slider 313 can be screwed to connect with the third screw 310 across the transition mechanism 4, ensuring that the first slider 313 can move normally between the second screw 306 and the third screw 310; when the third screw 310 and the second screw 306 are perpendicular or inclined to each other, since the second screw 306 cannot rotate, at this time, the fourth motor 314 drives the third screw 310 and the connection ring 404 to rotate relative to the turntable 403 by overcoming the acting force between the chuck 409 and the slot 406, so as to ensure that the third screw 310 can drive the first slider 313 to move normally. When the third screw 310 is in a horizontal state, the first laser rangefinder 321 can measure the bottom of the box girder formwork 10, and can also measure the bottom of the inner formwork.

[0052] As a further improvement of the present invention, as Figure 6 shown, a rotation center line between the transition plate 401 and the transition seat 402 is the same as a rotation center line between the second connection frame 308 and the transition frame 312, ensuring that the third motor 311 can drive the second connection frame 308 to rotate normally.

[0053] As a further improvement of the present invention, the using method is as follows:

[0054] S1: Place the auxiliary pushing mechanism 1 at the edge of the box girder formwork 10, and drive the second laser rangefinder 5 to move along the box girder formwork 10 through the auxiliary pushing mechanism 1, and make the light emitted by the second laser rangefinder 5 stick to the panel of the box girder formwork 10;

[0055] S2: When the second laser rangefinder 5 passes over the area where the moving mechanism 2 can block the light emitted by the second laser rangefinder 5, place the moving frame 12 and the moving mechanism 2 above the box girder formwork 10;

[0056] S3: When the light emitted by the second laser rangefinder 5 irradiates the protrusion on the surface of the panel, an alarm is issued, and the information is transmitted to the controller 11. The controller 11 controls the moving mechanism 2 to drive the measuring mechanism 3 to move to the protrusion, and the measuring mechanism 3 measures the distance between the protrusion and the panel. At the same time, the measuring mechanism 3 makes a mark at the protrusion through the inner marking component.

[0057] The above is a preferred embodiment of the present invention. The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the protection scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic size measuring device for a box girder formwork, comprising a moving frame (12) and a second slider (8), characterized in that: One end of the moving frame (12) is fixedly connected to a seventh motor (6). The end of the main shaft of the seventh motor (6) is fixedly connected to a fourth screw rod (7), and the fourth screw rod (7) is rotationally connected to the moving frame (12). A second slider (8) is helically connected to the outside of the fourth screw rod (7). The inside of the second slider (8) is slidably connected to a third guide shaft (9), and the third guide shaft (9) is fixedly connected to the moving frame (12). One end of the second slider (8) is fixedly connected to a measuring mechanism (3). Moving mechanisms (2) are arranged on the inner sides of both ends of the moving frame (12). A box girder formwork (10) is arranged at the bottom end of the moving mechanism (2). An auxiliary pushing mechanism (1) is arranged at the edge of the box girder formwork (10). A second laser rangefinder (5) is fixedly connected to the inside of the auxiliary pushing mechanism (1). A transition mechanism (4) is arranged at one end of the measuring mechanism (3). A controller (11) is fixedly connected to one end of the moving frame (12);The measuring mechanism (3) includes a first motor (301) fixedly connected to the second slider (8). The end of the main shaft of the first motor (301) is fixedly connected to a first connecting seat (302). One end of the first connecting seat (302) is fixedly connected to a second motor (304). The end of the main shaft of the second motor (304) is fixedly connected to a second connecting seat (303), and the second connecting seat (303) is rotatably connected to the first connecting seat (302). The inner side of the second connecting seat (303) is fixedly connected to a first connecting frame (305). A flipping assembly is arranged at the bottom end of the first connecting frame (305). One end of the flipping assembly is fixedly connected to a second connecting frame (308). One end of the second connecting frame (308) is fixedly connected to a fourth motor (314) and a second guiding shaft (309). The end of the main shaft of the fourth motor (314) is fixedly connected to a third screw rod (310). The other ends of the third screw rod (310) and the second guiding shaft (309) are both fixedly connected to the transition mechanism (4), and the third screw rod (310) and the second guiding shaft (309) are respectively fixedly connected to a second screw rod (306) and a first guiding shaft (307) through the transition mechanism (4), and the second screw rod (306) and the first guiding shaft (307) are respectively rotatably and fixedly connected to the first connecting frame (305). A first slider (313) is spirally connected to the outside of the second screw rod (306), and the first slider (313) is slidably connected to the second guiding shaft (309). One end of the first slider (313) is fixedly connected to a fifth motor (315). The end of the main shaft of the fifth motor (315) is fixedly connected to a connecting plate (316). One end of the connecting plate (316) is fixedly connected to a first fixing plate (317). One end of the first fixing plate (317) is fixedly connected to a second fixing plate (318). Both ends of the second fixing plate (318) are fixedly connected to a first laser rangefinder (321). A marking assembly is fixedly connected to one end of the first fixing plate (317).; 2. The automatic size measuring device for a box girder formwork according to claim 1, characterized in that: The flipping assembly includes a transition frame (312) fixedly connected to the first connection frame (305), and the transition frame (312) is rotatably connected to the second connection frame (308). One end of the transition frame (312) is fixedly connected to a third motor (311), and the end of the main shaft of the third motor (311) is fixedly connected to the second connection frame (308).

3. The automatic dimension measuring device for a box girder formwork according to claim 1, characterized in that: The marking assembly includes a third fixing plate (319) fixedly connected to the first fixing plate (317). The number of the third fixing plates (319) is two. One end of one of the third fixing plates (319) is fixedly connected to a sixth motor (320). The end of the main shaft of the sixth motor (320) is fixedly connected to a rotating cylinder (328), and the rotating cylinder (328) is rotatably connected to the third fixing plate (319). One end of the rotating cylinder (328) is fixedly connected to an electric telescopic rod (322). The other end of the electric telescopic rod (322) is fixedly connected to a dust storage cylinder (323). One end of the dust storage cylinder (323) is spirally connected to a threaded ring (325), and one end of the threaded ring (325) is fixedly connected to a cloth (324).

4. The automatic size measuring device for a box girder formwork according to claim 3, characterized in that: A first spring (327) is fixedly connected to the inner side of the dust storage cylinder (323). The other end of the first spring (327) is fixedly connected to a push plate (326), and the push plate (326) is slidably connected to the dust storage cylinder (323).

5. The automatic dimension measuring device for a box girder formwork according to claim 1, characterized in that: The auxiliary pushing mechanism (1) includes an auxiliary shell (101). One end of the auxiliary shell (101) is fixedly connected to an auxiliary frame (104). First guide wheels (105) are rotatably connected to the inner sides of the auxiliary shell (101) and the auxiliary frame (104). A first screw rod (103) is rotatably connected to the inner side of the auxiliary shell (101). A moving plate (102) is spirally connected to the outer side of the first screw rod (103). One end of the moving plate (102) is fixedly connected to a clamping seat (106). The second laser rangefinder (5) is placed inside the clamping seat (106). A limit screw rod (107) is spirally connected to the inner side of one end of the clamping seat (106), and one end of the limit screw rod (107) is in contact with the second laser rangefinder (5). An alarm (108) is fixedly connected to one end of the auxiliary shell (101).

6. The automatic size measuring device for a box girder formwork according to claim 1, characterized in that: The moving mechanism (2) includes a roller (203) rotatably connected to a moving frame (12). One end of the moving frame (12) is fixedly connected to an eighth motor (202). The end of the main shaft of the eighth motor (202) is fixedly connected to one of the rollers (203). One end of the moving frame (12) is rotatably connected to a guiding frame (204). One end of the guiding frame (204) is rotatably connected to a second guide wheel (205). One end of the guiding frame (204) is fixedly connected to a bolt (201), and the bolt (201) is rotatably connected to the moving frame (12). A limit ring (206) is spirally connected to the outer side of the bolt (201), and the limit ring (206) is in contact with the moving frame (12).

7. The automatic size measuring device for a box girder formwork according to claim 1, characterized in that: The transition mechanism (4) includes a connection ring (404) fixedly connected to both the second guide shaft (309) and the third screw (310). A bearing (405) is fixedly connected to the inner side of the connection ring (404). A turntable (403) is fixedly connected to the inner side of the bearing (405). A transition seat (402) is fixedly connected to the top of the turntable (403). A transition plate (401) is rotatably connected to the inner side of the transition seat (402). The transition plates (401) at different positions are respectively fixedly connected to the second screw (306) and the first guide shaft (307). Slots (406) are formed in the inner sides of the four circumferences of the turntable (403). A telescopic cylinder (408) is fixedly connected to the inner side of the connection ring (404). The other end of the telescopic cylinder (408) is fixedly connected to a chuck (409). The chuck (409) is engaged with the turntable (403) through the slots (406). A second spring (407) is arranged on the outer side of the telescopic cylinder (408). The two ends of the second spring (407) are respectively fixedly connected to the connection ring (404) and the chuck (409).

8. An automatic dimension measuring device for a box girder formwork according to claim 7, characterized in that: The rotation center line between the transition plate (401) and the transition seat (402) is the same as the rotation center line between the second connection frame (308) and the transition frame (312).

9. The method for using a device for automatically measuring the size of a box girder formwork according to claim 1, characterized in that: S1: Place the auxiliary pushing mechanism (1) at the edge of the box girder formwork (10), and move the second laser rangefinder (5) along the box girder formwork (10) through the auxiliary pushing mechanism (1), and make the light emitted by the second laser rangefinder (5) adhere to the panel of the box girder formwork (10). S2: When the second laser rangefinder (5) passes through the area where the moving mechanism (2) can block the light emitted by the second laser rangefinder (5), place the moving frame (12) and the moving mechanism (2) above the box girder formwork (10). S3: When the light emitted by the second laser rangefinder (5) irradiates a protrusion on the surface of the panel, an alarm is issued, and information is transmitted to the controller (11). The controller (11) controls the moving mechanism (2) to drive the measuring mechanism (3) to move to the protrusion, and the measuring mechanism (3) measures the distance between the protrusion and the relative panel. At the same time, the measuring mechanism (3) makes a mark at the protrusion through the marking component inside it.

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