A detection device for the structural dimensions of the beam end of a box girder

Abstract

The present invention provides a device for detecting the structural dimensions of the beam end of a box girder, which includes a dimension detection photography system and a target reference system arranged at intervals. The dimension detection photography system is arranged on the side of the target reference system away from the box girder of the box girder to be detected, and the target reference system is arranged between the dimension detection photography system and the beam end of the box girder to be detected; the dimension detection photography system includes a photography component, and the photography component is used for collecting the structural image of the beam end of the box girder to be detected; the target reference system includes a target component, and the target component includes a target body and a target surface arranged on the target body. The central coordinate data of the target surface is obtained by detecting with a measuring instrument; the dimension detection photography system takes pictures of the beam end structure of the box girder to be detected, and detects the beam end structure dimensions of the box girder to be detected based on the central coordinate data of the target surface.

Description

Technical Field

[0001] The present invention relates to the technical field of dimension detection, and particularly to a dimension detection device for the beam end structure of a box girder. Background Art

[0002] A box girder is a type of beam in bridge engineering. The existing structure of a box girder is generally as follows: it is hollow inside, with flanges provided on both sides of the upper part, and it has structures such as single-box or multi-box. After the box girder is fabricated in the beam yard, there should be no dimensional deviations that affect the structural performance and service function. To avoid such dimensional deviations, the box girder needs to be structurally detected before leaving the factory to ensure the dimensional accuracy requirements.

[0003] The detection of the beam end structure dimensions of a box girder is a part of the box girder dimension detection work. Traditional methods for detecting structural dimensions use direct contact measurement with a steel tape or non-contact measurement methods such as total station and three-dimensional laser scanner. Among them, direct contact measurement with a steel tape is greatly affected by the construction environment. When detecting the structural dimensions of large box girders, effective cooperation among multiple personnel is required, which is time-consuming, laborious, and the safety of personnel cannot be guaranteed. The detection efficiency is not high and the accuracy is affected by human factors. In the comparison of detection results, gross errors account for a large proportion. Non-contact measurement methods such as total station or three-dimensional laser scanner can ensure the safety of personnel to a great extent, have guaranteed accuracy, and the detection efficiency is improved. However, their instrument cost is relatively high, there are many preparatory procedures in the early stage, and the cooperation of on-site construction personnel is required, and there is still room for improvement in the detection efficiency and detection method. Summary of the Invention

[0004] To solve the deficiencies in the existing box girder dimension detection, the present invention provides a dimension detection device for the beam end structure of a box girder, aiming to achieve cloud detection of the beam end structure dimensions of the box girder and realize pipeline processing.

[0005] The present invention provides a dimension detection device for the beam end structure of a box girder, including a dimension detection photography system and a target reference system arranged at intervals. The dimension detection photography system is arranged on the side of the target reference system away from the beam box of the box girder to be detected, and the target reference system is arranged between the dimension detection photography system and the beam end of the box girder to be detected;

[0006] The dimension detection photography system includes a photography component, and the photography component is used to collect the image of the beam end structure of the box girder to be detected;

[0007] The target reference system includes a target component, and the target component includes a target body and a target surface arranged on the target body. The central coordinate data of the target surface is obtained by detecting with a measuring instrument;

[0008] The dimension detection photography system photographs the beam end structure of the box girder to be detected, and detects the dimension of the beam end structure of the box girder to be detected based on the central coordinate data of the target surface.

[0009] Optionally, the photography component includes a CCD camera, an industrial computer, and a wireless transmission module;

[0010] The images taken by the CCD camera of the target surface and the beam end of the box girder to be detected are transmitted into the industrial computer for storage;

[0011] The images stored in the industrial computer are transmitted to the cloud server through the wireless transmission module.

[0012] Optionally, the dimension detection photography system further includes a support component for supporting the photography component;

[0013] The support component includes a support main body, and the photography component is connected to the support main body.

[0014] Optionally, the dimension detection photography system further includes a rotary moving arm for connecting the support main body and the photography component;

[0015] The rotary moving arm includes a moving arm main body and a connecting groove provided on the moving arm main body. The support main body is clamped in the connecting groove and is rotatably connected to the moving arm main body.

[0016] Optionally, the support component further includes a sector piece connected to the support main body, and a card slot for installing the sector piece is further provided on the support main body; one straight edge of the sector piece is installed in the card slot, and the other straight edge of the sector piece is installed in the connecting groove. An arc through groove is provided at a position of the sector piece close to the arc edge;

[0017] A second connecting rod and a sliding fixing member are further provided on the moving arm main body; the second connecting rod penetrates through the moving arm main body and the connecting groove. The moving arm main body is rotatably connected to the support main body along the second connecting rod, and the second connecting rod penetrates through the arc through groove. The rotation displacement of the moving arm main body is limited and guided through the arc through groove; the sliding fixing member is arranged at a position of the connecting groove close to the arc edge of the sector piece, and the sector piece is limited and fixed by being clamped in the sliding fixing member.

[0018] Optionally, the photography component further includes an installation box and a first connecting member; the CCD camera, the industrial computer, and the wireless transmission module are all arranged in the installation box, and a through groove for the lens of the CCD camera to be exposed is further provided on the installation box;

[0019] A sliding groove for connecting with the first connecting member is further provided on the moving arm main body.

[0020] Optionally, a slider sleeved on the first connecting member is further provided in the sliding groove;

[0021] The sliding groove and the slider are connected to each other in a matching manner, and the inner wall of the sliding groove includes a guiding section, a clamping section, and a transition section that are sequentially connected to each other. The outer wall of the slider includes a connecting section, a matching section, and a limiting section that are sequentially connected to each other.

[0022] Optionally, the size detection photography system further includes a displacement device for driving the photography component to displace. The displacement device includes a support and fixing platform and a moving component that are connected to each other.

[0023] The support and fixing platform is connected to the photography component and is used to support the photography component.

[0024] The moving component includes a wheel component and a braking component. The braking component is used to control the braking of the wheel component.

[0025] Optionally, the wheel component includes wheels, wheel axles, and a braking connecting rod. The wheels are mounted on the wheel axles, and there are two sets of wheels and wheel axles that are arranged in one-to-one correspondence. The two sets of wheel axles are connected to each other through the braking connecting rod.

[0026] The braking component includes an operation disk, an operation rod, a braking rack, and a driving gear component. The operation rod is installed through the braking connecting rod, and an operation disk and a driving gear component that are spaced apart from each other are installed on the operation rod. The operation disk and the driving gear component are respectively arranged opposite to the two end faces of the braking connecting rod. The driving gear component includes a first helical gear, a second helical gear that is meshed and connected to the first helical gear, and a driving gear that is connected to the second helical gear through a coupling shaft. The driving gear is meshed and connected to the braking rack.

[0027] Optionally, the target reference system further includes a target setting rod component. The target setting rod component includes a first vertical target setting rod, a second vertical target setting rod, a third vertical target setting rod, and a horizontal target setting rod. The first vertical target setting rod, the second vertical target setting rod, and the horizontal target setting rod are connected to each other to form an outer target setting rod of a door frame structure. The third vertical target setting rod is arranged between the first vertical target setting rod and the second vertical target setting rod. And at least one installation position for connecting to the target body is provided on the first vertical target setting rod, the second vertical target setting rod, the third vertical target setting rod, and the horizontal target setting rod.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] A device for detecting the structural dimensions of the end of a box girder provided by the present invention is lifted by a lifting device into the detection area surrounded by the device for detecting the structural dimensions of the end of the box girder after the box girder is manufactured. The dimension detection and photography system makes the photography component face the end of the box girder through the displacement device and the braking device, and rotates and moves the photography component to a suitable position through the rotating moving arm. After the power is turned on, the detection work can be started, so as to achieve the purpose of automatically detecting the end of the box girder on the production line of the box girder. During the process of using the device for detecting the structural dimensions of the end of the box girder to detect the structural dimensions of the end of the box girder, no operator is required to be present, thus saving the input of personnel costs, and adopting an automatic operation method to efficiently complete the detection task.

[0030] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The following will refer to the drawings to further elaborate on the present invention in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0032] Figure 1 is a distribution schematic diagram when a device for detecting the structural dimensions of the end of a box girder in an embodiment of the present invention detects the end of the box girder;

[0033] Figure 2 is Figure 1 an axonometric schematic diagram of the dimension detection and photography system in;

[0034] Figure 3 is Figure 2 an axonometric schematic diagram of the photography component in;

[0035] Figure 4 is Figure 2 the first axonometric schematic diagram of the rotating moving arm in;

[0036] Figure 5 is Figure 2 the second axonometric schematic diagram of the rotating moving arm in;

[0037] Figure 6 is Figure 2 the axonometric exploded schematic diagram of the slider in;

[0038] Figure 7 is Figure 2 an axonometric schematic diagram of the support component in;

[0039] Figure 8 is Figure 2 the axonometric exploded schematic diagram of the displacement device in;

[0040] Figure 9 is Figure 8 An axonometric schematic diagram of the moving component in the [component name not provided].

[0041] Figure 10 is Figure 8 An axonometric schematic diagram of the braking component in the [component name not provided].

[0042] Figure 11 is Figure 1 An axonometric schematic diagram of the target reference system in the [component name not provided].

[0043] Wherein:

[0044] 1. Dimension detection photography system, 1-1. Photography component, 1-1-1. CCD camera, 1-1-2. Installation box, 1-1-3. First connecting piece, 1-2. Rotary moving arm, 1-2-1. Moving arm main body, 1-2-2. Connecting groove, 1-2-3. Sliding groove, 1-2-4. First connecting rod, 1-2-5. Slide block, 1-2-6. Sliding fixing piece, 1-2-7. Second connecting rod, 1-2-7-1. Connecting section, 1-2-7-2. Fitting section, 1-2-7-3. Limiting section, 1-2-7-4. Limiting screw, 1-3. Support component, 1-3-1. Support main body, 1-3-2. Sector piece, 1-3-3. Connecting pin shaft, 1-4. Displacement device, 1-4-2-1. Wheel, 1-4-2-2. Wheel shaft, 1-4-2-3. First connecting rod, 1-4-2-4. Second connecting rod, 1-4-2-5. Third connecting rod, 1-4-2-6. Operating disk, 1-4-2-7. Operating rod, 1-4-2-8. Fourth connecting rod, 1-4-2-9. Braking rack, 1-4-2-10. First helical gear, 1-4-2-11. Second helical gear, 1-4-2-12. Coupling shaft, 1-4-2-13. Driving gear;

[0045] 2. Target reference system, 2-1. Target setting rod assembly, 2-1-1. First vertical target setting rod, 2-1-2. Second vertical target setting rod, 2-1-3. Third vertical target setting rod, 2-1-4. Horizontal target setting rod, 2-2. Target component, 2-2-1. Target surface, 2-2-2. Second connecting piece;

[0046] 10. Box girder, 20. Track. Specific implementation method

[0047] To make the above objects, features, and advantages of the present invention more clearly understandable, the following provides a detailed description of the specific embodiments of the present invention with reference to the accompanying drawings. It should be noted that the drawings of the present invention are all in simplified forms and use non-precise scales, only for conveniently and clearly assisting in the description of the embodiments of the present invention; the several mentioned in the present invention are not limited to the specific quantities in the attached drawing examples; the orientation or positional relationships indicated by 'front','middle', 'back', 'left', 'right', 'up', 'down', 'top', 'bottom','middle', etc. in the present invention are all based on the orientation or positional relationships shown in the accompanying drawings of the present invention, and do not indicate or imply that the devices or components referred to must have a specific orientation, nor can it be construed as a limitation to the present invention.

[0048] This embodiment:

[0049] See Figure 1 As shown, a detection device for the structural dimensions of the beam ends of a box girder. This detection device for the structural dimensions of the box girder end face is installed by using the tracks arranged at both ends and one side of the box girder 10 to be detected at the box girder construction site (specifically, the dimension detection photography system 1 is slidably connected to the track 20) to realize the detection of the structural dimensions of the beam ends of the box girder 10 to be detected during the production process. The said detection device for the structural dimensions of the box girder end face includes a dimension detection photography system 1 and a target reference system 2 arranged at intervals. The dimension detection photography system 1 is arranged on the side of the target reference system 2 away from the beam box of the box girder 10 to be detected, and the target reference system 2 is arranged between the dimension detection photography system 1 and the beam end of the box girder 10 to be detected; the dimension detection photography system includes a photography component 1-1, and the photography component 1-1 is used to collect the structural images of the beam ends of the box girder 10 to be detected; the target reference system 2 includes a target component 2-2, and the target component 2-2 includes a target body and a target surface 2-2-1 arranged on the target body. The central coordinate data of the target surface 2-2-1 is obtained by detecting with a measuring instrument; the dimension detection photography system 1 takes pictures of the structural dimensions of the beam ends of the box girder 10 to be detected, and detects the structural dimensions of the beam ends of the box girder 10 to be detected based on the central coordinate data of the target surface 2-2-1.

[0050] Optionally, to realize the detection of the structural dimensions of the two beam ends of the box girder 10 to be detected, this detection device for the structural dimensions of the box girder end face can be provided with two groups arranged at intervals with the two beam ends of the box girder 10 to be detected respectively.

[0051] Optionally, at least one corner point is provided on the target surface 2-2-1 to facilitate the recognition during the process of the photography component (1-1) taking pictures of the target surface 2-2-1.

[0052] See Figure 2As shown, the dimension detection photography system 1 includes a photography component 1-1, a rotary moving arm 1-2, a support component 1-3, and a displacement device 1-4;

[0053] The displacement device 1-4 is used to support the support component 1-3 and the rotary moving arm 1-2 and drive the support component 1-3 and the rotary moving arm 1-2 to displace on the track 20;

[0054] One end of the support component 1-3 is connected to the displacement device 1-4, and the other end of the support component 1-3 extends vertically upward freely and is provided with a rotary moving arm 1-2, which is used to provide a rotary fulcrum for the rotary moving arm 1-2;

[0055] Preferably, there are two groups of the rotary moving arms 1-2 symmetrically arranged along the support component 1-3. The two groups of rotary moving arms 1-2 can rotate around the support component 1-3 as the origin respectively, so as to realize the unfolding or folding of the rotary moving arm 1-2 relative to the support component 1-3;

[0056] There are two groups of the photography components 1-1 respectively arranged on the two groups of rotary moving arms 1-2, which are used to take images of the beam end structure of the box girder 10 to be detected and the target surface 2-2-1.

[0057] See Figure 3 As shown, a single photography component 1-1 includes a CCD camera 1-1-1, an industrial control computer, and a wireless transmission module; the CCD camera 1-1-1 takes pictures of the target surface 2-2-1 and the beam end structure of the box girder 10 to be detected, and transmits the captured image data to the industrial control computer for storage; when the cloud server needs to process the images taken by the CCD camera 1-1-1, it retrieves the images stored in the industrial control computer through the wireless transmission module.

[0058] Optionally, to realize the connection between the CCD camera 1-1-1, the industrial control computer, the wireless transmission module and the rotary moving arm 1-2, the photography component 1-1 further includes a mounting box 1-1-2 and a first connecting piece 1-1-3; the CCD camera 1-1-1, the industrial control computer and the wireless transmission module are all installed in the mounting box 1-1-2, and one end of the first connecting piece 1-1-3 is fixedly connected to the mounting box 1-1-2 and the other end is connected to the rotary moving arm 1-2.

[0059] Optionally, to ensure that the CCD camera 1-1-1 can take pictures in all directions, a through groove is further provided on the mounting box 1-1-2 to facilitate the lens of the CCD camera 1-1-1 to extend out or to ensure that the lens of the CCD camera 1-1-1 can take pictures without obstruction.

[0060] See Figures 4 to 6As shown, a single-piece rotating and moving arm 1-2 includes a moving arm main body 1-2-1, a connecting groove 1-2-2 provided on the moving arm main body 1-2-1, and a first connecting rod 1-2-4 passing through the moving arm main body 1-2-1 and the connecting groove 1-2-2;

[0061] One end of the support assembly 1-3 for connecting with the rotating and moving arm 1-2 is clamped in the 1-2-2, and the first connecting rod 1-2-4 is installed through the moving arm main body 1-2-1, the connecting groove 1-2-2 and the support assembly 1-3, so that the moving arm main body 1-2-1 rotates relative to the support assembly 1-3 in the connecting groove 1-2-2;

[0062] The connecting groove 1-2-2 is preferably arranged as a U-shaped groove. The open end of the connecting groove 1-2-2 penetrates and is arranged on the end face of the moving arm main body 1-2-1 close to the support assembly 1-3, and the closed end of the connecting groove 1-2-2 extends towards the extending end of the moving arm main body 1-2-1.

[0063] Optionally, to realize the mutual connection between the moving arm main body 1-2-1 and the first connecting member 1-1-3, a sliding groove 1-2-3 is provided on the moving arm main body 1-2-1; the first connecting member 1-1-3 is arranged as a screw rod structure with an external thread on its surface. The first connecting member 1-1-3 is installed through the sliding groove 1-2-3, and through the connection of a nut matching the screw rod structure, the relative locking and fixing between the first connecting member 1-1-3 and the moving arm main body 1-2-1 are realized, and by adjusting the relative position of the first connecting member 1-1-3 in the sliding groove 1-2-3, the adjustable installation position of the CCD camera 1-1-1 is realized, thereby improving the adaptation range of the box girder end structure dimension detection device.

[0064] In addition to the above structure, to achieve the mutual connection between the moving arm body 1-2-1 and the first connecting member 1-1-3, a sliding groove 1-2-3 is provided on the moving arm body 1-2-1, and a slider 1-2-5 capable of displacing within the sliding groove 1-2-3 is provided in the sliding groove 1-2-3. The slider 1-2-5 is sleeved on the first connecting member 1-1-3; the inner wall of the sliding groove 1-2-3 is configured to include a guiding section, a clamping section, and a transition section that are sequentially connected from top to bottom; the outer wall of the slider 1-2-5 is configured to include a connecting section 1-2-7-1, a mating section 1-2-7-2, and a limiting section 1-2-7-3 that are sequentially connected from top to bottom; the sliding groove 1-2-3 and the slider 1-2-5 are mutually cooperatively connected to enable the relative position adjustment of the slider 1-2-5 within the sliding groove 1-2-3, thereby achieving the adjustability of the installation position of the CCD camera 1-1-1. Here, it is preferred that: to achieve the relative locking and fixing between the slider 1-2-5 and the first connecting member 1-1-3, a limiting lock pin 1-2-7-4 that penetrates the mounting hole and is perpendicularly arranged with respect to the central axis of the mounting hole is further provided on the slider 1-2-5, and an annular groove that cooperates with the limiting lock pin 1-2-7-4 is further provided on the outer surface of the first connecting member 1-1-3; by tightening the limiting lock pin 1-2-7-4, the relative locking between the slider 1-2-5 and the first connecting member 1-1-3 is achieved; or by loosening the limiting lock pin 1-2-7-4, the relative disassembly between the slider 1-2-5 and the first connecting member 1-1-3 is achieved.

[0065] Optionally, to enable the clamping section and the mating section to cooperate to form a clamping structure, the inner diameters of the guiding section and the transition section are greater than the inner diameter of the clamping section, and the outer diameters of the connecting section 1-2-7-1 and the limiting section 1-2-7-3 are greater than the outer diameter of the mating section 1-2-7-2; to facilitate the disassembly and assembly of the slider 1-2-5, the limiting section 1-2-7-3 and the mating section 1-2-7-2 are arranged in a detachable manner. Here, it is preferred that: the clamping structure can be set to a cylindrical structure, a cube structure, a cuboid structure, or a polyhedron structure, etc., in the form of mutually cooperating structures according to actual requirements.

[0066] Optionally, to achieve the limit fixation between the moving arm main body 1-2-1 and the support assembly 1-3, a sliding fixing member 1-2-6 that mates with the end face of the support assembly 1-3 is further provided on the moving arm main body 1-2-1. The sliding fixing member 1-2-6 is preferably set in a U-shaped structure, with its open end facing the end face of the support assembly 1-3. And a locking member for locking the support assembly 1-3 and the sliding fixing member 1-2-6 to each other is provided on the sliding fixing member 1-2-6. When the moving arm main body 1-2-1 rotates relative to the support assembly 1-3 and rotates to the working position, the end of the moving arm main body 1-2-1 close to the support assembly 1-3 is snapped into the sliding fixing member 1-2-6, and the relative locking fixation between the moving arm main body 1-2-1 and the sliding fixing member 1-2-6 is achieved by locking the locking member. Here, it is preferred that: the locking member is preferably set as an elastic clamping member or an adjusting bolt.

[0067] See Figure 7 As shown, the support assembly 1-3 includes a support main body 1-3-1 and a sector member 1-3-2 connected to the support main body 1-3-1 through a connecting pin shaft 1-3-3. Two sector members 1-3-2 corresponding one-to-one with the moving arm main body 1-2-1 are provided on the sector member 1-3-2. And one of the straight edges of the sector member 1-3-2 is connected to the support main body 1-3-1 through the connecting pin shaft 1-3-3, and the other straight edge of the sector member 1-3-2 is clamped in the connecting groove 1-2-2.

[0068] Optionally, to achieve the adjustment of the relative position of the moving arm main body 1-2-1 on the support main body 1-3-1, a clamping groove for clamping the moving arm main body 1-2-1 is provided on the support main body 1-3-1, and multiple groups of mounting pin holes matching the connecting pin shaft 1-3-3 are provided on the clamping groove. By connecting the connecting pin shaft 1-3-3 with the mounting pin holes at different positions, the installation of the moving sector member 1-3-2 at different positions on the support main body 1-3-1 is achieved, so as to achieve the adjustability of the relative position of the moving arm main body 1-2-1 on the support main body 1-3-1. Here, it is preferred that: multiple groups of connecting pin shafts 1-3-3 are preferably provided, and the central axes of the multiple groups of connecting pin shafts 1-3-3 are arranged parallel to the end face provided with the clamping groove to ensure the connection strength between the support main body 1-3-1 and the sector member 1-3-2.

[0069] Optionally, in order to guide and limit the rotation of the moving arm main body 1-2-1 relative to the support main body 1-3-1, an arc through groove is provided at a position of the sector member 1-3-2 close to the arc edge, and a second connecting rod 1-2-7 passing through the moving arm main body 1-2-1, the connecting groove 1-2-2 and the arc through groove is provided on the moving arm main body 1-2-1. During the rotation of the moving arm main body 1-2-1 relative to the support main body 1-3-1, the rotation position of the moving arm main body 1-2-1 is limited by the length of the arc through groove, and the rotation direction of the moving arm main body 1-2-1 is guided by the direction of the arc through groove, so that the moving arm main body 1-2-1 rotates along the arc through groove to realize the folding or unfolding of the moving arm main body 1-2-1 relative to the support main body 1-3-1.

[0070] See Figures 8 to 10 As shown, the displacement device 1-4 includes a support fixing platform 1-4-1, a moving component 1-4-2 and a support rod 1-4-3; the support fixing platform 1-4-1 is used to provide support for the support component 1-3 and the rotating moving arm 1-2; the moving component 1-4-2 is used to displace on the track 20; the support rod 1-4-3 is used to connect the support fixing platform 1-4-1 and the moving component 1-4-2 to each other.

[0071] Optionally, the moving component 1-4-2 includes wheels 1-4-2-1, wheel shafts 1-4-2-2 and a first connecting rod 1-4-2-3; the wheels 1-4-2-1 are mounted on the wheel shafts 1-4-2-2, and both the wheels 1-4-2-1 and the wheel shafts 1-4-2-2 are provided with two groups arranged in one-to-one correspondence. The two groups of wheels 1-4-2-1 and wheel shafts 1-4-2-2 are arranged in parallel along the moving direction of the track 20 to displace on the track 20; both ends of the first connecting rod 1-4-2-3 are connected to the two groups of wheel shafts 1-4-2-2 respectively to realize the connection between the two groups of wheel shafts 1-4-2-2; one end of the support rod 1-4-3 is connected to the first connecting rod 1-4-2-3, and the other end of the support rod 1-4-3 is connected to the support fixing platform 1-4-1 to realize the connection between the support fixing platform 1-4-1 and the moving component 1-4-2.

[0072] Optionally, the moving component 1-4-2 further includes a second connecting rod 1-4-2-4, a third connecting rod 1-4-2-5, an operation disk 1-4-2-6, an operation rod 1-4-2-7, a fourth connecting rod 1-4-2-8, a brake rack 1-4-2-9 and a driving gear assembly;

[0073] The second connecting rod 1-4-2-4 and the third connecting rod 1-4-2-5 are arranged in parallel and are respectively disposed on both sides of the first connecting rod 1-4-2-3, and both ends of the second connecting rod 1-4-2-4 and the third connecting rod 1-4-2-5 are respectively connected to two sets of wheel axles 1-4-2-2;

[0074] There are two operating rods 1-4-2-7 that are connected through the second connecting rod 1-4-2-4 and the third connecting rod 1-4-2-5. Each operating rod 1-4-2-7 is equipped with an operating disk 1-4-2-6 and a driving gear assembly arranged at intervals (specifically, the operating disk 1-4-2-6 and the driving gear assembly are relatively arranged along the two end faces of the braking connecting rod);

[0075] The fourth connecting rod 1-4-2-8 connects the second connecting rod 1-4-2-4 and the third connecting rod 1-4-2-5 and is simultaneously connected to the end faces of the second connecting rod 1-4-2-4 and the third connecting rod 1-4-2-5 close to the driving gear assembly, and is fixedly connected to one end of the two operating rods 1-4-2-7 close to the driving gear assembly;

[0076] The braking rack 1-4-2-9 is slidably connected to the fourth connecting rod 1-4-2-8;

[0077] The driving gear assembly includes a first helical gear 1-4-2-10, a second helical gear 1-4-2-11 meshed with the first helical gear 1-4-2-10, and a driving gear 1-4-2-13 connected to the second helical gear 1-4-2-11 through a coupling shaft 1-4-2-12; the driving gear 1-4-2-13 is meshed with the braking rack 1-4-2-9, so that by rotating the operating disk 1-4-2-6, the braking rack 1-4-2-9 is driven to slide on the fourth connecting rod 1-4-2-8. When it is necessary to brake the displacement device 1-4, the operator rotates the operating disk 1-4-2-6 to drive the braking rack 1-4-2-9 to displace in the direction close to the track 20 until the braking rack 1-4-2-9 contacts the inner wall of the track 20 to realize the braking of the displacement device 1-4; when it is necessary to displace the displacement device 1-4, the operator rotates the operating disk 1-4-2-6 to drive the braking rack 1-4-2-9 to displace in the direction away from the track 20, so that the braking rack 1-4-2-9 is separated from the contact with the inner wall of the track 20, so that the displacement device 1-4 can be displaced. Here, it is preferred that: in order to support the second helical gear 1-4-2-11 and the driving gear 1-4-2-13, a support shaft is further provided on the coupling shaft 1-4-2-12, and the other end of the support shaft is connected to the fourth connecting rod 1-4-2-8.

[0078] Optionally, an installation hole for penetrating and installing the operating rod 1-4-2-7 and a first connection hole for connecting with the support rod 1-4-3 are further provided on the support and fixing platform 1-4-1; a second connection hole for connecting with the support rod 1-4-3 is further provided on the first connecting rod 1-4-2-3.

[0079] See Figure 11 As shown, the target reference system 2 includes a target setting rod assembly 2-1 and a target assembly 2-2;

[0080] The target setting rod assembly 2-1 includes a first vertical target setting rod 2-1-1, a second vertical target setting rod 2-1-2, a third vertical target setting rod 2-1-3 and a horizontal target setting rod 2-1-4. The first vertical target setting rod 2-1-1, the second vertical target setting rod 2-1-2 and the horizontal target setting rod 2-1-4 are connected to form the peripheral target setting rods of a door frame structure, and the third vertical target setting rod 2-1-3 is arranged at the central position of the peripheral target setting rods of the door frame structure;

[0081] The target assembly 2-2 is provided with a plurality of pieces distributed on the first vertical target setting rod 2-1-1, the second vertical target setting rod 2-1-2, the third vertical target setting rod 2-1-3 and the horizontal target setting rod 2-1-4; each target assembly 2-2 includes a target body, a target surface 2-2-1 arranged on the target body and a second connecting member 2-2-2 for connecting the target body with the target setting rod assembly 2-1; one end of the second connecting member 2-2-2 is fixedly connected to the target surface 2-2-1, and the other end thereof is respectively connected to the first vertical target setting rod 2-1-1, the second vertical target setting rod 2-1-2, the third vertical target setting rod 2-1-3 or the horizontal target setting rod 2-1-4; the target surface 2-2-1 is preferably set as a cube structure, and at least one corner point (the corner point is set as a regular geometric figure) is regularly arranged on its surface to facilitate the recognition by the CCD camera 1-1-1. Here, preferably: the second connecting member 2-2-2 is preferably set as a screw-nut structure. One end of the screw is connected to the end surface of the target surface 2-2-1 where no regular geometric figure is arranged. The other end of the screw penetrates and is installed on the first vertical target setting rod 2-1-1, the second vertical target setting rod 2-1-2, the third vertical target setting rod 2-1-3 or the horizontal target setting rod 2-1-4, and is relatively locked by a nut; in order to accurately recognize a plurality of target surfaces 2-2-1, the plurality of target surfaces 2-2-1 are arranged on different planes (that is, there are multiple distances between the target surface 2-2-1 and the target setting rod assembly).

[0082] Optionally, to enable the adjustable setting of the target assembly 2-2 on the first vertical target setting rod 2-1-1, the second vertical target setting rod 2-1-2, the third vertical target setting rod 2-1-3, and the horizontal target setting rod 2-1-4, waist-shaped grooves for connecting with the target assembly 2-2 are provided on the first vertical target setting rod 2-1-1, the second vertical target setting rod 2-1-2, the third vertical target setting rod 2-1-3, and the horizontal target setting rod 2-1-4.

[0083] The specific process of detecting the beam end structure size of the box girder to be detected by using the above-mentioned box girder beam end structure size detection device is as follows:

[0084] Step 1: Set the distance between the size detection photography system and the target reference system and the distance between the size detection photography system and the beam end of the box girder to be detected according to the parameters of the CCD camera.

[0085] Step 2: The measuring instrument measures the central coordinate data of the target surface in the target reference system and uploads the measurement results to the cloud server.

[0086] Step 3: The CCD camera takes pictures of the beam end structure of the box girder to be detected and transmits the captured images to the industrial control computer.

[0087] Step 3: The cloud server calls the images stored in the industrial control computer through the wireless transmission module and processes the images to obtain the beam end structure size of the box girder to be detected.

[0088] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A detection device for the structural dimensions of the end of a box girder, characterized in that It includes a dimension detection photography system (1) and a target reference system (2) which are arranged at intervals. The dimension detection photography system (1) is arranged on the side of the target reference system (2) away from the beam box of the box girder (10) to be detected, and the target reference system (2) is arranged between the dimension detection photography system (1) and the beam end of the box girder (10) to be detected; The dimension detection photography system (1) includes a photography component (1-1), a support component (1-3) for supporting the photography component (1-1), and a rotary moving arm (1-2) for connecting the support main body (1-3-1) and the photography component (1-1). The photography component (1-1) is used for collecting the beam end structure image of the box girder (10) to be detected; the support component (1-3) includes a support main body (1-3-1), and the photography component (1-1) is connected to the support main body (1-3-1); the rotary moving arm (1-2) includes a moving arm main body (1-2-1) and a connection groove (1-2-2) arranged on the moving arm main body (1-2-1). The support main body (1-3-1) is clamped in the connection groove (1-2-2) and is rotatably connected to the moving arm main body (1-2-1); the support component (1-3) further includes a sector piece (1-3-2) connected to the support main body (1-3-1), and a clamping groove for installing the sector piece (1-3-2) is also arranged on the support main body (1-3-1); one straight edge of the sector piece (1-3-2) is installed in the clamping groove, and the other straight edge of the sector piece (1-3-2) is installed in the connection groove (1-2-2). An arc through groove is arranged at a position of the sector piece (1-3-2) close to the arc edge; A second connecting rod (1-2-7) and a sliding fixing piece (1-2-6) are also arranged on the moving arm main body (1-2-1); the second connecting rod (1-2-7) penetrates through the moving arm main body (1-2-1) and the connection groove (1-2-2). The moving arm main body (1-2-1) is rotatably connected to the support main body (1-3-1) along the second connecting rod (1-2-7), and the second connecting rod (1-2-7) penetrates through and is arranged in the arc through groove, and the rotational displacement of the moving arm main body (1-2-1) is limited and guided through the arc through groove; the sliding fixing piece (1-2-6) is arranged at a position of the connection groove (1-2-2) close to the arc edge of the sector piece (1-3-2), and the sector piece (1-3-2) is limited and fixed by being clamped in the sliding fixing piece (1-2-6); The target reference system (2) includes a target component (2-2). The target component (2-2) includes a target body and a target surface (2-2-1) arranged on the target body. The central coordinate data of the target surface (2-2-1) is detected by a measuring instrument; The dimension detection photography system (1) photographs the beam end structure of the box girder (10) to be detected, and detects the beam end structure dimension of the box girder (10) to be detected based on the central coordinate data of the target surface (2-2-1).

2. The box girder end structure size detection device according to claim 1, characterized in that The photography component (1-1) includes a CCD camera (1-1-1), an industrial control computer, and a wireless transmission module; The images captured by the CCD camera (1-1-1) of the target surface (2-2-1) and the beam ends of the box girder (10) to be detected are transmitted into the industrial control computer for storage; The images stored in the industrial control computer are transmitted to the cloud server through the wireless transmission module.

3. The box girder end structure size detection device according to claim 2, wherein, The photography component (1-1) further includes an installation box (1-1-2) and a first connecting piece (1-1-3); the CCD camera (1-1-1), the industrial control computer, and the wireless transmission module are all arranged in the installation box (1-1-2), and a through groove for the lens of the CCD camera (1-1-1) to be exposed is further provided on the installation box (1-1-2); A sliding groove (1-2-3) for connecting with the first connecting piece (1-1-3) is further provided on the moving arm main body (1-2-1).

4. The box girder end structure size detection device according to claim 3, characterized in that, A slider (1-2-5) sleeved on the first connecting piece (1-1-3) is further provided in the sliding groove (1-2-3); The sliding groove (1-2-3) and the slider (1-2-5) are connected in a matching manner, and the inner wall of the sliding groove (1-2-3) includes a guiding section, a clamping section, and a transition section that are sequentially connected to each other, and the outer wall of the slider (1-2-5) includes a connecting section, a matching section, and a limiting section that are sequentially connected to each other.

5. The box girder end structure size detection device according to any one of claims 1-4, characterized in that, The dimension detection photography system (1) further includes a displacement device (1-4) for driving the photography component (1-1) to displace, and the displacement device (1-4) includes a support and fixing platform (1-4-1) and a moving component (1-4-2) that are connected to each other; The support and fixing platform (1-4-1) is connected to the photography component (1-1) and is used to support the photography component (1-1); The moving component (1-4-2) includes a wheel component and a braking component, and the braking component is used to control the braking of the wheel component.

6. The box girder end structure size detection device according to claim 5, characterized in that, The wheel component includes wheels (1-4-2-1), wheel axles (1-4-2-2), and a braking connecting rod; the wheels (1-4-2-1) are installed on the wheel axles (1-4-2-2), and there are two sets of the wheels (1-4-2-1) and the wheel axles (1-4-2-2) that are arranged in one-to-one correspondence, and the two sets of wheel axles (1-4-2-2) are connected to each other through the braking connecting rod; The braking assembly includes an operating disc (1-4-2-6), an operating lever (1-4-2-7), a braking rack (1-4-2-9), and a drive gear assembly; the operating lever (1-4-2-7) is installed through the braking connecting rod, and an operating disc (1-4-2-6) and a drive gear assembly are installed on the operating lever (1-4-2-7) at intervals, and the operating disc (1-4-2-6) and the drive gear assembly are arranged oppositely along the two end faces of the braking connecting rod; the drive gear assembly includes a first helical gear (1-4-2-10), a second helical gear (1-4-2-11) meshed with the first helical gear (1-4-2-10), and a drive gear (1-4-2-13) connected to the second helical gear (1-4-2-11) through a coupling shaft (1-4-2-12), and the drive gear (1-4-2-13) is meshed with the braking rack (1-4-2-9).

7. The box girder end structure size detection device according to claim 6, characterized in that, The target reference system (2) further includes a target setting rod assembly (2-1), and the target setting rod assembly (2-1) includes a first vertical target setting rod (2-1-1), a second vertical target setting rod (2-1-2), a third vertical target setting rod (2-1-3), and a horizontal target setting rod (2-1-4); the first vertical target setting rod (2-1-1), the second vertical target setting rod (2-1-2), and the horizontal target setting rod (2-1-4) are connected to form an outer target setting rod of a door frame structure; the third vertical target setting rod (2-1-3) is arranged between the first vertical target setting rod (2-1-1) and the second vertical target setting rod (2-1-2); and at least one installation position for connecting with the target body is provided on the first vertical target setting rod (2-1-1), the second vertical target setting rod (2-1-2), the third vertical target setting rod (2-1-3), and the horizontal target setting rod (2-1-4).

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