Ancient building wood structure crack detection device

Abstract

The invention discloses a historic building wood structure crack detection device, and relates to the technical field of wood structure crack detection, the historic building wood structure crack detection device comprises an attachment frame and a side frame, the attachment frame is provided with a walking assembly, two ends of the attachment frame are provided with encircling mechanisms, and the attachment frame is in encircling contact with a wood structure through the encircling mechanisms; the attachment frame moves on the surface of the wood structure through the walking assembly. The side, facing the wood structure, of the attachment frame is provided with a detection mechanism. The detection mechanism comprises an arc-shaped groove formed in the side, facing the wood structure, of the attachment frame, an arc-shaped detection frame is slidably installed in the arc-shaped groove, detection cameras are arranged on the sides, facing the wood structure, of the two ends of the arc-shaped detection frame, and a switching mechanism is further arranged at the end of the side frame. The detection device is transferred from a cylindrical wood structure to a horizontal square cross beam wood structure through the switching mechanism, and surface crack detection operation on the whole wood structure building is achieved.

Description

Technical Field

[0001] This invention relates to the field of wood structure crack detection technology, specifically a crack detection device for ancient building wood structures. Background Technology

[0002] Over time and with changes in climate, wooden structures are prone to cracking. To extend the lifespan of wooden structures, it is necessary to regularly inspect the surface of the wooden building for cracks and prevent the cracks from widening and disrupting the structural balance of the building.

[0003] Current methods for detecting cracks in the wooden structures of ancient buildings mainly rely on manual, handheld inspection equipment. This is particularly difficult and costly for high-lying wooden components. Therefore, there is an urgent need for a specialized device for detecting cracks in the wooden structures of ancient buildings. Summary of the Invention

[0004] The purpose of this invention is to provide a device for detecting cracks in the wooden structure of ancient buildings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A crack detection device for ancient wooden structures includes an attachment frame and a side frame. The side frames are symmetrically arranged at both ends of the attachment frame. A walking component is provided on the attachment frame. A circling mechanism is provided at both ends of the attachment frame. The attachment frame is in circling contact with the wooden structure through the circling mechanism. The attachment frame moves on the surface of the wooden structure through the walking component. A detection mechanism is provided on the side of the attachment frame facing the wooden structure.

[0007] The detection mechanism includes an arc-shaped groove with the attachment frame facing the wooden structure. An arc-shaped detection frame is slidably installed in the arc-shaped groove. Detection cameras are installed at both ends of the arc-shaped detection frame facing the wooden structure. Two sets of arc-shaped rods are fixedly installed in the arc-shaped groove. Fixing blocks are provided at both ends of the arc-shaped rods. The arc-shaped rods are fixedly installed between the arc-shaped groove and the fixing blocks. Multiple sliding sleeves are installed on the arc-shaped rods. The upper and lower sides of the arc-shaped detection frame are provided with snap-fit ​​grooves. Positioning balls that cooperate with the snap-fit ​​grooves are provided on the sliding sleeves. The arc-shaped detection frame slides back and forth between the sliding sleeves through the snap-fit ​​grooves.

[0008] As a further embodiment of the present invention: a motor three is fixedly installed on the outer side of the arc-shaped groove, the motor three is connected to a contact wheel, the contact wheel is in contact with the surface of the arc-shaped detection frame, the fixing block is connected to an anti-detachment block, and a limit block is provided at the end of the arc-shaped detection frame.

[0009] As a further embodiment of the present invention: the walking assembly includes a mounting column disposed between the attachment frame and the side frame, a sliding sleeve first sleeve is sleeved on the mounting column, a connecting spring is sleeved on the mounting column between the sliding sleeve first and the attachment frame, a hinge frame first is mounted on the sliding sleeve first, a hinge frame second is mounted on the side frame, the hinge frame first and the hinge frame second are hinged together, a walking wheel is rotatably mounted on the end of the hinge frame second, a connecting block is provided on the back of the sliding sleeve first, a bidirectional screw is rotatably mounted on the back of the attachment frame, the connecting block and the bidirectional screw are threaded together, a motor first is fixedly mounted on the attachment frame, the motor first is connected to a drive gear, a mating section is provided on the bidirectional screw, and the drive gear and the mating section mesh with each other.

[0010] As a further embodiment of the present invention: the circumferential mechanism includes connecting rods disposed on the edges of the attachment frame and the side frame, a rotating sleeve mounted on the connecting rod, a circumferential frame disposed on the rotating sleeve, connecting sleeves disposed on the connecting rods at both ends of the rotating sleeve, the connecting sleeves being fixedly connected to the connecting rods, a second motor disposed on the connecting sleeve, the second motor being connected to a driving gear, a driven gear disposed on the rotating sleeve, the driving gear and the driven gear meshing with each other, a fixed frame disposed on the connecting sleeve, a supporting spring disposed between the circumferential frame and the fixed frame, and a circumferential wheel disposed on the circumferential frame.

[0011] As a further embodiment of the present invention: a sliding block is installed inside the ring frame, a mounting plate is provided inside the sliding block, a directional motor is provided on the mounting plate, the ring wheel is rotatably mounted between the ring and the mounting plate, the directional motor is connected to the ring wheel, an adjustment groove is provided on the upper side of the ring frame, a telescopic cylinder is provided inside the adjustment groove, a connecting buckle is installed inside the adjustment groove, the connecting buckle is fixedly connected to the sliding block, and the end of the telescopic cylinder is connected to the connecting buckle.

[0012] As a further embodiment of the present invention: two ring wheels are arranged side by side, with an installation gap between the two ring wheels, and the two ring wheels cooperate with the top corner of the square wooden structure.

[0013] As a further embodiment of the present invention: a switching mechanism is provided at the end of the side frame, the switching mechanism including a connecting frame, the connecting frame being fixedly installed with the side frame, a rotating frame being rotatably installed on the connecting frame, a rotary motor being provided between the rotating frame and the connecting frame, a swing frame being provided on the rotating frame, a swing motor being provided between the swing frame and the rotating frame, the swing frames being symmetrically arranged, a capture frame being rotatably installed on the swing frame, a motor being connected to the capture frame, a connecting frame being provided at the end of the capture frame, a moving wheel being installed on the connecting frame, and a motor being connected to the moving wheel.

[0014] As a further embodiment of the present invention: two sets of movable wheels are provided, and pulleys are provided on the two sets of movable wheels, and a transmission belt is provided between the pulleys.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) An arc-shaped inspection frame is installed by means of an arc-shaped groove. The arc-shaped inspection frame is controlled to move within the arc-shaped groove, thereby carrying the inspection cameras at both ends of the arc-shaped inspection frame to take pictures and inspect the surface of the wooden structure, thereby determining the crack condition of the wooden structure surface. After the attachment frame is attached to the wooden structure by the circumferential mechanism, the arc-shaped inspection frame is adjusted around the central axis under the control of the power component. Without adjusting the relative position between the attachment frame and the wooden structure, the arc-shaped inspection frame can perform a complete appearance inspection of the wooden structure.

[0017] (2) By setting an anti-detachment block on the fixed block and setting a limit block on the arc-shaped detection frame, when the arc-shaped detection frame is adjusted to the limit position, the limit block is blocked and limited by the anti-detachment block, thereby preventing the arc-shaped detection frame from separating from the arc-shaped groove. The arc-shaped detection frame achieves position adjustment through the motor and the contact wheel.

[0018] (3) The double-ended screw is controlled by motor one to rotate, thereby driving the sliding sleeves at both ends to move along the mounting column, which in turn causes the traveling wheels installed between the hinge frame one and the hinge frame two to open, so that the traveling wheels abut against the surface of the wooden structure. The traveling wheels are self-driven, and the traveling wheels are rotatably installed at the ends of the hinge frame two. The direction of the traveling wheels is adjusted by electric drive, so that the relative position can be adjusted when the detection device moves on the surface of the wooden structure, so that the detection device can rotate around the wooden structure to adjust its position. When detecting larger wooden structures, it can make up for the problem of insufficient size setting of the arc detection frame in the detection mechanism. Attached Figure Description

[0019] Figure 1 This is a first-view schematic diagram of the present invention.

[0020] Figure 2 This is a schematic diagram from a second perspective of the present invention.

[0021] Figure 3 This is a schematic diagram of the installation of the walking component in this invention.

[0022] Figure 4 This is a schematic diagram of the installation of the bidirectional screw in this invention.

[0023] Figure 5 This is a schematic diagram of the installation of the walking wheels in this invention.

[0024] Figure 6This is a schematic diagram of the encircling mechanism in this invention.

[0025] Figure 7 This is a schematic diagram of the connection of the ring wheel in this invention.

[0026] Figure 8 This is a schematic diagram showing the connection between the detection mechanism and the attachment frame in this invention.

[0027] Figure 9 This is a schematic diagram of the detection mechanism in this invention.

[0028] Figure 10 for Figure 9 Enlarged structural diagram at point A in the middle.

[0029] Figure 11 This is a schematic diagram of the switching mechanism in this invention.

[0030] Figure 12 This is a schematic diagram of the installation of the movable wheel in this invention.

[0031] In the diagram: 1. Attachment frame; 10. Side frame; 11. Connecting rod; 2. Walking assembly; 20. Mounting column; 21. Sliding sleeve one; 22. Connecting spring; 23. Hinge frame one; 24. Hinge frame two; 25. Walking wheel; 26. Connecting block; 27. Bidirectional screw; 28. Mating section; 29. ​​Motor one; 210. Drive gear; 3. Encircling mechanism; 30. Connecting sleeve; 31. Rotating sleeve; 32. Encircling frame; 33. Adjusting groove; 34. Mating slider; 340. Directional motor; 341. Connecting buckle; 342. Mounting plate; 343. Telescopic cylinder; 35. Encircling wheel; 36. Driven gear; 37. Driving gear; 38. 39. Motor 2; 310. Fixing frame; 4. Supporting spring; 4. Detection mechanism; 40. Arc groove; 41. Arc detection frame; 42. Fixing block; 43. Arc rod; 44. Sliding sleeve 2; 45. Snap-fit ​​groove; 46. Positioning ball; 47. Motor 3; 48. Contact wheel; 49. Anti-detachment block; 410. Detection camera; 411. Limit block; 5. Switching mechanism; 50. Connecting frame; 51. Rotating frame; 52. Rotary motor; 53. Swing frame; 54. Swing motor; 55. Capture frame; 56. Motor 4; 57. Connecting frame; 58. Moving wheel; 59. Motor 5; 510. Pulley; 511. Transmission belt. Detailed Implementation

[0032] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0033] like Figure 1 , Figure 2 , Figure 3As shown, a crack detection device for ancient wooden structures includes an attachment frame 1 and a side frame 10. The side frames 10 are symmetrically arranged at both ends of the attachment frame 1. A walking component 2 is provided on the attachment frame 1. A circling mechanism 3 is provided at both ends of the attachment frame 1. The attachment frame 1 is in circling contact with the wooden structure through the circling mechanism 3. The attachment frame 1 moves on the surface of the wooden structure through the walking component 2. A detection mechanism 4 is provided on the side of the attachment frame 1 facing the wooden structure.

[0034] like Figure 2 , Figures 8-10 As shown, the detection mechanism 4 includes an arc-shaped groove 40 provided on the side of the attachment frame 1 facing the wooden structure. An arc-shaped detection frame 41 is slidably installed in the arc-shaped groove 40. Detection cameras 410 are provided at both ends of the arc-shaped detection frame 41 facing the wooden structure. Two sets of arc-shaped rods 43 are fixedly installed in the arc-shaped groove 40. Fixing blocks 42 are provided at both ends of the arc-shaped rods 43. The arc-shaped rods 43 are fixedly installed between the arc-shaped groove 40 and the fixing blocks 42. Multiple sliding sleeves 44 are installed on the arc-shaped rods 43. The upper and lower sides of the arc-shaped detection frame 41 are provided with snap-fit ​​grooves 45. Positioning balls 46 that cooperate with the snap-fit ​​grooves 45 are provided on the sliding sleeves 44. The arc-shaped detection frame 41 slides back and forth between the sliding sleeves 44 through the snap-fit ​​grooves 45.

[0035] Specifically, the arc-shaped inspection frame 41 is movably installed through the arc-shaped groove 40. The arc-shaped inspection frame 41 is controlled to move within the arc-shaped groove 40, thereby carrying the inspection cameras 410 at both ends of the arc-shaped inspection frame 41 to photograph and inspect the surface of the wooden structure, thus determining the condition of cracks on the surface of the wooden structure. After the attachment frame 1 is attached to the wooden structure by the circumferential mechanism 3, the arc-shaped inspection frame 41 is adjusted around the central axis under the control of the power component. Without adjusting the relative position between the attachment frame 1 and the wooden structure, the arc-shaped inspection frame 41 can perform a complete visual inspection of the wooden structure's exterior.

[0036] More specifically, the wooden structure mainly includes cylindrical and square column structures. Generally, the columns are cylindrical, while square columns are mainly used for beam structures. After the circling mechanism 3 circulates with the outer surface of the wooden structure, in order to avoid frequent adjustments to the relative position of the attachment frame 1 and the surface of the wooden structure during the inspection process, the arc-shaped detection frame 41 is movably installed. When the left side of the arc-shaped detection frame 41 and the right side of the arc-shaped groove 40 approach each other, the detection camera 410 on the right side of the arc-shaped detection frame 41 reaches the limit detection angle; correspondingly, when the right side of the arc-shaped detection frame 41 and the left side of the arc-shaped groove 40 approach each other, the detection camera 410 on the left side of the arc-shaped detection frame 41 reaches the limit detection angle. The cooperation between the arc-shaped groove 40 and the arc-shaped detection frame 41 effectively reduces the setting length of the arc-shaped detection frame 41, thereby avoiding the arc of the arc-shaped detection frame 41 being too large, which would affect the overall structure of the detection device and its adaptability to the detection of wooden structures of different sizes.

[0037] Furthermore, such as Figures 8-10 As shown, a motor 47 is fixedly installed on the outer side of the arc-shaped groove 40. The motor 47 is connected to a contact wheel 48. The contact wheel 48 is in contact with the surface of the arc-shaped detection frame 41. The fixing block 42 is connected to an anti-detachment block 49. A limit block 411 is provided at the end of the arc-shaped detection frame 41.

[0038] Specifically, to prevent the arc-shaped detection frame 41 from disengaging from the arc-shaped groove 40 during position adjustment, an anti-disengagement block 49 is provided on the fixed block 42, and a limiting block 411 is provided on the arc-shaped detection frame 41. When the arc-shaped detection frame 41 is adjusted to the limit position, the limiting block 411 is blocked and limited by the anti-disengagement block 49, thereby preventing the arc-shaped detection frame 41 from disengaging from the arc-shaped groove 40. The position adjustment of the arc-shaped detection frame 41 is achieved through the motor 47 and the contact wheel 48.

[0039] It should be noted that, in order to avoid interference between the limit block 411 and the anti-detachment block 49 and the contact wheel 48, the limit block 411 is respectively set on different sides of the two ends of the arc-shaped detection frame 41, and the anti-detachment block 49 is set on the fixing block 42 at both ends of the arc-shaped groove 40. In addition, there are two sets of contact wheel 48 and motor 47, so as to ensure that when the arc-shaped detection frame 41 reaches both ends of the arc-shaped groove 40, the arc-shaped detection frame 41 can return to the middle part of the arc-shaped groove 40.

[0040] Furthermore, such as Figures 2-5 As shown, the walking assembly 2 includes a mounting post 20 disposed between the attachment frame 1 and the side frame 10. A sliding sleeve 21 is sleeved on the mounting post 20. A connecting spring 22 is sleeved on the mounting post 20 between the sliding sleeve 21 and the attachment frame 1. A hinge frame 23 is mounted on the sliding sleeve 21. A hinge frame 24 is mounted on the side frame 10. The hinge frame 23 and the hinge frame 24 are hinged together. A walking wheel 25 is rotatably mounted at the end of the hinge frame 24. A connecting block 26 is provided on the back of the sliding sleeve 21. A bidirectional screw 27 is rotatably mounted on the back of the attachment frame 1. The connecting block 26 and the bidirectional screw 27 are threaded together. A motor 29 is fixedly mounted on the attachment frame 1. The motor 29 is connected to a drive gear 210. A mating section 28 is provided on the bidirectional screw 27. The drive gear 210 and the mating section 28 mesh with each other.

[0041] Specifically, after the circumferential mechanism 3 comes into contact with the surface of the wooden structure, the bidirectional screw 27 is rotated by the motor 29, thereby driving the sliding sleeves 21 at both ends to move along the mounting column 20. This causes the traveling wheels 25 installed between the hinge frame 23 and the hinge frame 24 to open, so that the traveling wheels 25 abut against the surface of the wooden structure. The traveling wheels 25 are self-driven, and the ends of the traveling wheels 25 are rotatably installed with the hinge frame 24. The direction of the traveling wheels 25 is adjusted by electric drive, so that the relative position can be adjusted when the detection device moves on the surface of the wooden structure. This allows the detection device to rotate and adjust its position around the wooden structure, which can compensate for the insufficient size of the arc-shaped detection frame 41 in the detection mechanism 4 when detecting larger wooden structures.

[0042] Furthermore, such as Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, the encircling mechanism 3 includes connecting rods 11 disposed on the edges of the attachment frame 1 and the side frame 10. A rotating sleeve 31 is mounted on the connecting rod 11. An encircling frame 32 is disposed on the rotating sleeve 31. Connecting sleeves 30 are disposed on the connecting rods 11 at both ends of the rotating sleeve 31. The connecting sleeves 30 are fixedly connected to the connecting rods 11. A second motor 38 is disposed on the connecting sleeve 30. The second motor 38 is connected to a driving gear 37. A driven gear 36 is disposed on the rotating sleeve 31. The driving gear 37 and the driven gear 36 mesh with each other. A fixed frame 39 is disposed on the connecting sleeve 30. A supporting spring 310 is disposed between the encircling frame 32 and the fixed frame 39. An encircling wheel 35 is disposed on the encircling frame 32.

[0043] Furthermore, such as Figure 6 , Figure 7 As shown, a sliding block 34 is fitted inside the ring frame 32, and a mounting plate 342 is provided inside the sliding block 34. A directional motor 340 is provided on the mounting plate 342. The ring wheel 35 is rotatably mounted between the ring frame 35 and the mounting plate 342. The directional motor 340 is connected to the ring wheel 35. An adjustment groove 33 is provided on the upper side of the ring frame 32. A telescopic cylinder 343 is provided inside the adjustment groove 33. A connecting buckle 341 is fitted inside the adjustment groove 33. The connecting buckle 341 is fixedly connected to the sliding block 34. The end of the telescopic cylinder 343 is connected to the connecting buckle 341.

[0044] Specifically, after the attachment frame 1 and the side frame 10 are attached to the edge of the wooden structure, the clamping frame 32 is rotated by the motor 38, gradually approaching the surface of the wooden structure. At the same time, the position of the clamping wheel 35 relative to the clamping frame 32 is adjusted by the telescopic cylinder 343, so that the clamping wheel 35 and the traveling wheel 25 combine to form a clamping grip on the surface of the wooden structure. The clamping wheel 35 is adjusted in direction by the directional motor 340, and is adjusted synchronously with the traveling wheel 25, which facilitates the rotation adjustment of the detection device relative to the wooden structure for detection operations.

[0045] Furthermore, such as Figure 7 As shown, two ring wheels 35 are arranged side by side, with an installation gap between the two ring wheels 35, and the two ring wheels 35 cooperate with the top corner of the square wooden structure.

[0046] Specifically, two ring wheels 35 are provided. The gap between the two ring wheels 35 ensures that the detection device can reliably hug the wooden structure when detecting a horizontal beam that is a square wooden structure. The gap between the two ring wheels 35 engages with the right-angled edge of the square wooden structure, thereby achieving the ring clamping of the horizontal square wooden structure. At the same time, it facilitates the movement of the detection device along the horizontal wooden structure by the walking component 2.

[0047] Furthermore, such as Figure 2 , Figure 3 , Figure 11 , Figure 12 As shown, a switching mechanism 5 is provided at the end of the side frame 10. The switching mechanism 5 includes a connecting frame 50, which is fixedly installed with the side frame 10. A rotating frame 51 is rotatably installed on the connecting frame 50. A rotary motor 52 is provided between the rotating frame 51 and the connecting frame 50. A swing frame 53 is provided on the rotating frame 51. A swing motor 54 is provided between the swing frame 53 and the rotating frame 51. The swing frames 53 are symmetrically arranged. A capture frame 55 is rotatably installed on the swing frame 53. A motor 56 is connected to the capture frame 55. A connecting frame 57 is provided at the end of the capture frame 55. A moving wheel 58 is installed on the connecting frame 57. A motor 59 is connected to the moving wheel 58.

[0048] Specifically, when the detection device reaches the end of the cylindrical wooden structure and approaches the horizontally set square beam wooden structure, in order to facilitate the transfer of the detection device from the cylindrical wooden structure to the horizontal square wooden structure, a switching mechanism 5 is set on the side frame 10. The capture frame 55, which is rotatably installed, captures and encircles the square wooden structure. The moving wheel 58, which is rotatably installed on the capture frame 55, contacts the top of the square wooden structure. At this time, the encircling mechanism 3 releases its encirclement from the cylindrical wooden structure. Combined with the moving wheel 58, it drives the attachment frame 1 and the side frame 10 to move as a whole. At this time, the swing motor 54 drives the lower connecting frame 50, the side frame 10, and the attachment frame 1 to swing upward as a whole. Combined with the encircling mechanism 3, it re-attaches and encircles the horizontal square wooden structure, transferring from the cylindrical wooden structure to the horizontal square wooden structure, and continues the crack detection operation on the surface of the wooden structure.

[0049] Furthermore, such as Figure 12 As shown, there are two sets of movable wheels 58, and pulleys 510 are provided on the two sets of movable wheels 58. A transmission belt 511 is provided between the pulleys 510.

[0050] The working principle of this invention embodiment is as follows:

[0051] like Figures 1-12As shown, an arc-shaped inspection frame 41 is movably mounted via an arc-shaped groove 40. The arc-shaped inspection frame 41 moves within the arc-shaped groove 40, carrying inspection cameras 410 at both ends to photograph and inspect the surface of the wooden structure, thereby determining the extent of cracks on the surface. After the attachment frame 1 is attached to the wooden structure via the circumferential mechanism 3, the arc-shaped inspection frame 41 adjusts around its central axis under the control of the power component. Without adjusting the relative position between the attachment frame 1 and the wooden structure, the arc-shaped inspection frame 41 can perform a complete visual inspection of the wooden structure's exterior. Timber structures mainly include cylindrical and square column structures. Generally, the columns are cylindrical, while square columns are mainly used for beam structures. After the circling mechanism 3 circumferentially encircles the outer surface of the timber structure, in order to avoid frequent adjustments to the relative position of the attachment frame 1 and the surface of the timber structure during the inspection process, an arc-shaped inspection frame 41 is movably installed. When the left side of the arc-shaped inspection frame 41 approaches the right side of the arc-shaped groove 40, the inspection camera 410 on the right side of the arc-shaped inspection frame 41 reaches its limit inspection angle. Correspondingly, when the right side of the arc-shaped inspection frame 41 approaches the left side of the arc-shaped groove 40, the inspection camera 410 on the left side of the arc-shaped inspection frame 41 reaches its limit inspection angle. The cooperation between the arc-shaped groove 40 and the arc-shaped inspection frame 41 effectively reduces the setting length of the arc-shaped inspection frame 41, thereby avoiding the arc of the arc-shaped inspection frame 41 being too large, which would affect the overall structure of the inspection device and its adaptability to the inspection of timber structures of different sizes. To prevent the arc-shaped inspection frame 41 from disengaging from the arc-shaped groove 40 during position adjustment, an anti-disengagement block 49 is installed on the fixing block 42, and a limiting block 411 is installed on the arc-shaped inspection frame 41. When the arc-shaped inspection frame 41 is adjusted to its limit position, the limiting block 411 is blocked and limited by the anti-disengagement block 49, thereby preventing the arc-shaped inspection frame 41 from disengaging from the arc-shaped groove 40. The position adjustment of the arc-shaped inspection frame 41 is achieved by the motor 3 47 and the contact wheel 48. After the circumferential mechanism 3 comes into contact with the surface of the wooden structure, the bidirectional screw 27 is rotated by the motor 1 29, thereby driving the sliding sleeves 1 21 at both ends to move along the mounting column 20, which in turn causes the traveling wheels 25 installed between the hinge frame 1 23 and the hinge frame 24 to open, so that the traveling wheels 25 abut against the surface of the wooden structure. The walking wheels 25 are self-driven and are rotatably mounted to the ends of the hinged frame 24. The direction of the walking wheels 25 is adjusted electrically, allowing the detection device to adjust its relative position while moving on the wooden structure surface. This enables the detection device to rotate and adjust its position around the wooden structure, compensating for insufficient dimensions of the arc-shaped detection frame 41 in the detection mechanism 4 when inspecting larger wooden structures. After the attachment frame 1 and the side frame 10 are against the edge of the wooden structure, the second motor 38 rotates the circumferential frame 32, gradually approaching the wooden structure surface. Simultaneously, the telescopic cylinder 343 adjusts the position of the circumferential wheel 35 relative to the circumferential frame 32, so that the circumferential wheel 35 and the walking wheels 25 combine to form a circumferential clamping grip on the wooden structure surface.The circling wheel 35 is oriented by the directional motor 340 and is synchronized with the traveling wheel 25 to facilitate the rotation and adjustment of the detection device relative to the wooden structure. When the detection device reaches the end of the cylindrical wooden structure and approaches the horizontally set square beam wooden structure, a switching mechanism 5 is set on the side frame 10 to facilitate the transfer of the detection device from the cylindrical wooden structure to the horizontal square wooden structure. The rotatably mounted capture frame 55 captures and circulates with the square wooden structure. The rotatably mounted moving wheel 58 on the capture frame 55 contacts the top of the square wooden structure. At this time, the circling mechanism 3 releases its grip on the cylindrical wooden structure. Combined with the moving wheel 58, it drives the attachment frame 1 and the side frame 10 to move as a whole. At this time, the swing motor 54 drives the lower connecting frame 50, the side frame 10, and the attachment frame 1 to swing upward. Combined with the circling mechanism 3, it re-attaches and circulates with the horizontal square wooden structure, transferring from the cylindrical wooden structure to the horizontal square wooden structure, and continues the crack detection operation on the wooden structure surface.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for detecting cracks in the wooden structure of ancient buildings, comprising an attachment frame (1) and side frames (10), wherein the side frames (10) are symmetrically arranged at both ends of the attachment frame (1), characterized in that, The attachment frame (1) is provided with a walking component (2), and the two ends of the attachment frame (1) are provided with a hugging mechanism (3). The attachment frame (1) is in hugging contact with the wooden structure through the hugging mechanism (3). The attachment frame (1) moves on the surface of the wooden structure through the walking component (2). The attachment frame (1) is provided with a detection mechanism (4) on the side facing the wooden structure. The detection mechanism (4) includes an arc-shaped groove (40) provided on the side of the attachment frame (1) facing the wooden structure. An arc-shaped detection frame (41) is slidably installed in the arc-shaped groove (40). Detection cameras (410) are provided at both ends of the arc-shaped detection frame (41). Two sets of arc-shaped rods (43) are fixedly installed in the arc-shaped groove (40). Fixing blocks (42) are provided at both ends of the arc-shaped rods (43). The arc-shaped rods (43) are fixedly installed between the arc-shaped groove (40) and the fixing blocks (42). Multiple sliding sleeves (44) are installed on the arc-shaped rods (43). Snap-fit ​​grooves (45) are provided on the upper and lower sides of the arc-shaped detection frame (41). Positioning balls (46) that cooperate with the snap-fit ​​grooves (45) are provided on the sliding sleeves (44). The arc-shaped detection frame (41) slides back and forth between the sliding sleeves (44) through the snap-fit ​​grooves (45).

2. The device for detecting cracks in ancient wooden structures according to claim 1, characterized in that, A motor three (47) is fixedly installed on the outside of the arc groove (40). The motor three (47) is connected to a contact wheel (48). The contact wheel (48) is in contact with the surface of the arc detection frame (41). The fixing block (42) is connected to an anti-detachment block (49). A limit block (411) is provided at the end of the arc detection frame (41).

3. The device for detecting cracks in ancient wooden structures according to claim 1, characterized in that, The walking assembly (2) includes a mounting post (20) disposed between the attachment frame (1) and the side frame (10). A sliding sleeve (21) is sleeved on the mounting post (20). A connecting spring (22) is sleeved on the mounting post (20) between the sliding sleeve (21) and the attachment frame (1). A hinge frame (23) is mounted on the sliding sleeve (21). A hinge frame (24) is mounted on the side frame (10). The hinge frame (23) and the hinge frame (24) are hinged together. The end of the hinge frame (24) is... The attachment frame (1) is rotatably mounted with a walking wheel (25). A connecting block (26) is provided on the back of the sliding sleeve (21). A bidirectional screw (27) is rotatably mounted on the back of the attachment frame (1). The connecting block (26) and the bidirectional screw (27) are threadedly connected. A motor (29) is fixedly mounted on the attachment frame (1). The motor (29) is connected to a drive gear (210). A mating section (28) is provided on the bidirectional screw (27). The drive gear (210) and the mating section (28) mesh with each other.

4. The device for detecting cracks in ancient wooden structures according to claim 1, characterized in that, The circumferential mechanism (3) includes connecting rods (11) disposed on the edges of the attachment frame (1) and the side frame (10). A rotating sleeve (31) is mounted on the connecting rod (11). A circumferential frame (32) is disposed on the rotating sleeve (31). Connecting sleeves (30) are disposed on the connecting rods (11) at both ends of the rotating sleeve (31). The connecting sleeves (30) are fixedly connected to the connecting rods (11). A second motor (38) is disposed on the connecting sleeve (30). A driving gear (37) is connected to the second motor (38). A driven gear (36) is disposed on the rotating sleeve (31). The driving gear (37) and the driven gear (36) mesh with each other. A fixed frame (39) is disposed on the connecting sleeve (30). A supporting spring (310) is disposed between the circumferential frame (32) and the fixed frame (39). A circumferential wheel (35) is disposed on the circumferential frame (32).

5. A crack detection device for ancient wooden structures according to claim 4, characterized in that, The ring frame (32) is fitted with a sliding block (34), and the sliding block (34) is fitted with a mounting plate (342). The mounting plate (342) is fitted with a directional motor (340). The ring wheel (35) is rotatably mounted between the ring frame (35) and the mounting plate (342). The directional motor (340) is connected to the ring wheel (35). The upper side of the ring frame (32) is fitted with an adjustment groove (33), and the adjustment groove (33) is fitted with a telescopic cylinder (343). The adjustment groove (33) is fitted with a connecting buckle (341), and the connecting buckle (341) is fixedly connected to the sliding block (34). The end of the telescopic cylinder (343) is connected to the connecting buckle (341).

6. The device for detecting cracks in ancient wooden structures according to claim 5, characterized in that, Two ring wheels (35) are arranged side by side, with an installation gap between the two ring wheels (35), and the two ring wheels (35) cooperate with the top corner of the square wooden structure.

7. A crack detection device for ancient wooden structures according to claim 1, characterized in that, The end of the side frame (10) is provided with a switching mechanism (5). The switching mechanism (5) includes a connecting frame (50). The connecting frame (50) is fixedly installed with the side frame (10). A rotating frame (51) is rotatably installed on the connecting frame (50). A rotary motor (52) is provided between the rotating frame (51) and the connecting frame (50). A swing frame (53) is provided on the rotating frame (51). A swing motor (54) is provided between the swing frame (53) and the rotating frame (51). The swing frames (53) are symmetrically arranged. A capture frame (55) is rotatably installed on the swing frame (53). A motor (56) is connected to the capture frame (55). A connecting frame (57) is provided at the end of the capture frame (55). A moving wheel (58) is installed on the connecting frame (57). A motor (59) is connected to the moving wheel (58).

8. A crack detection device for ancient wooden structures according to claim 7, characterized in that, The movable wheel (58) is provided in two sets, and the two sets of movable wheels (58) are provided with pulleys (510), and a transmission belt (511) is provided between the pulleys (510).

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