Defect degree detection device for ancient wood structure building

Abstract

The invention discloses a defect degree detection device for a wood structure ancient building, and belongs to the field of wood structure building detection. A defect degree detection device for a wood structure ancient building comprises a detection probe and two arc-shaped plates, one ends of the two arc-shaped plates are rotationally connected through a hinge, the other ends of the two arc-shaped plates are fixedly connected through a pin plate, and positioning sleeves are installed on the arc-shaped plates on the two sides. An opening and closing part for driving the positioning sleeve to translate is arranged on each arc-shaped plate; through cooperation of a driving gear and a driven tooth groove, a rotating arc plate drives a detection probe to rotate around an inner cavity of a rotating arc groove, then through cooperation of the meshing relation between linkage teeth and the driven gear and arrangement of a first belt wheel set and a second belt wheel set, after the rotating arc plate rotates by one circle, a positioning sleeve moves upwards, and the detection probe is detected; therefore, all-directional detection of the wood structure cylinder is realized, and the detection precision and efficiency are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of wooden structure building detection, and in particular to a defect detection device for wooden ancient buildings. Background Art

[0002] Ancient wooden buildings are an important part of traditional Chinese architecture. They are complex and delicate, and are mainly composed of wooden columns, wooden beams, purlins, brackets, etc. However, with the passage of time, the structure of ancient wooden buildings will be damaged to varying degrees. In order to assess the health of ancient buildings and ensure their safety and historical value, it is necessary to test the degree of damage to ancient wooden buildings.

[0003] At present, when inspecting wooden columns of ancient buildings, data is usually collected manually on the entire unfolded surface of the column, which has low inspection efficiency and often results in omissions, reducing the accuracy of the inspection results; and a certain amount of dust will adhere to the surface of the wooden column, which will affect the inspection results and thus reduce the accuracy of the inspection results. Therefore, a defect detection device for ancient wooden structures is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art of low detection efficiency, incomplete detection, and the dust attached to the column will affect the detection results, which ultimately leads to reduced accuracy of the detection results, and to propose a defect detection device for ancient wooden buildings.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A defect detection device for an ancient wooden structure building comprises a detection probe and two groups of arc plates, one ends of the two groups of arc plates are rotatably connected by hinges, the other ends of the two groups of arc plates are fixedly connected by pin plates, positioning sleeves are installed on the arc plates on both sides, and opening and closing parts for driving the positioning sleeves to translate are provided on the arc plates, and the device also comprises: a rotating component, which is arranged on the arc plate and is used to drive the detection probe to rotate along the outer wall of the positioning sleeve; a lifting component, which is arranged on the arc plate and is used to drive the positioning sleeves on both sides to move up and down; and a cleaning component, which is arranged on the positioning sleeve and is used to clean the detection probe and the surface of a wooden structure column to be tested.

[0007] Material toggling mechanism, its both sides respectively have the top of two support bars, and the top of two support bars is connected with the spring or rubber cushion, and the rubber cushion is connected with the rubber cushion on the support bar of two support bars.

[0008] In order to improve the detection efficiency, preferably, the rotating component includes a rotating arc plate, a rotating arc groove is opened in both groups of the positioning sleeves, the rotating arc plate is slidably connected in the rotating arc groove, the detection probe is fixed on the outer wall of the rotating arc plate, the top of the positioning sleeve is fixedly connected with a servo motor, the output shaft end of the servo motor is fixedly connected with a driving gear, a driving groove is opened on the outer wall of the positioning sleeve, the driving groove is connected with the inner cavity of the rotating arc groove, a driven tooth groove is opened on the side wall of the rotating arc plate, and the driving gear passes through the driving groove and is meshed with the driven tooth groove.

[0009] Furthermore, the lifting assembly includes a shift plate, which is fixed on the outer wall of the rotating arc plate, and a linkage tooth is fixedly connected to the bottom side wall of the shift plate, a transmission shaft is rotatably connected to the positioning sleeve, a first pulley group is transmission-connected between the transmission shaft and the cross guide rod, a second pulley group is transmission-connected between the reciprocating screw rod and the top of the cross guide rod, and a driven gear is fixedly connected to the bottom end of the transmission shaft, and the driven gear is meshingly connected to the linkage tooth.

[0010] Furthermore, the top of the rotating wheel of the first pulley assembly is fixedly connected to a limiting rotating sleeve, the limiting rotating sleeve is rotatably connected to a limiting rotating ring, and the top of the limiting rotating ring is fixedly connected to the bottom of the positioning sleeve.

[0011] In order to improve the detection accuracy, preferably, the cleaning assembly includes a piston box, which is fixed on the outer wall of the positioning sleeve, and piston plates are slidably connected on both sides of the inner wall of the piston box, and a return spring is fixedly connected between the side wall of the piston plate and the inner wall of the piston box, the rotating shaft of the driving gear passes through the piston box and is fixedly connected to a magnetic plate, an exhaust groove is provided in the positioning sleeve, and both ends of the exhaust groove are respectively connected to both ends of the inner cavity of the piston box, an air blowing groove is provided in the rotating arc plate, and the air blowing groove is connected to the inner cavity of the exhaust groove, and an air blowing pipe is fixedly connected to the rotating arc plate.

[0012] Furthermore, two groups of air blowing pipes are provided, both groups of air blowing pipes are connected to the inner cavity of the air blowing groove, the two groups of air blowing pipes are symmetrically arranged along the center of the detection probe, the output ends of the two groups of air blowing pipes are both facing the detection end of the detection probe, and a one-way valve is arranged in the air blowing pipe.

[0013] Furthermore, both sides of the inner cavity of the piston plate are fixedly connected with limit plates, the magnetic plate and the piston plate repel each other magnetically, and the repulsive force between the magnetic plate and the piston plate is greater than the thrust required for compressing the return spring.

[0014] In order to improve the dust reduction effect, preferably, a dust storage groove is opened inside the paddle, a dust suction groove is opened on the upper part of the side wall of the dust storage groove, the input end of the dust suction groove faces the center of the positioning sleeve, a suction groove is opened between the inner cavity of the dust storage groove and the inner cavity of the blowing groove, and a one-way valve is arranged in the suction groove.

[0015] Furthermore, a dust filter plate is fixedly connected to the inner wall of the dust storage tank, the dust filter plate covers the input end of the suction tank, and the bottom of the dust storage tank is fixed and connected to a dust exhaust pipe.

[0016] Compared with the prior art, the present invention provides a defect detection device for ancient wooden buildings, which has the following beneficial effects:

[0017] 1. The defect detection device for ancient wooden structures, through the cooperation of the driving gear and the driven tooth groove, makes the rotating arc plate carry the detection probe to rotate around the inner cavity of the rotating arc groove, and then cooperates with the meshing relationship between the linkage teeth and the driven gear, as well as the setting of the first pulley group and the second pulley group. After each rotation of the rotating arc plate, the positioning sleeve moves upward for a certain distance, thereby realizing all-round detection of the wooden structure column, effectively improving the detection accuracy and efficiency.

[0018] 2. The defect detection device for ancient wooden structures, through the repulsive effect of the magnetic plate and the piston plate, cooperates with the setting of the reset spring, firstly makes the air flow continuously discharged along the air blow pipe, so as to clean the detection probe and the surface of the wooden structure column; at the same time, negative pressure adsorption force is generated in the dust storage tank to collect the dust raised during the blowing cleaning, thereby reducing dust pollution, and at the same time, the surface of the wooden structure column is cleaned by suction, which effectively ensures the cleanliness of the surface of the wooden structure column and improves the accuracy of the detection result.

[0019] 3. The defect detection device for ancient wooden structures can facilitate the detection of wooden structure columns of different positions and thicknesses by setting up two sets of arc plates and two sets of positioning sleeves, thereby effectively improving the convenience of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of a defect detection device for ancient wooden buildings proposed by the present invention is shown in FIG. Figure 1 ;

[0021] Figure 2 The overall structure of a defect detection device for ancient wooden buildings proposed by the present invention is shown in FIG. Figure 2 ;

[0022] Figure 3 A schematic diagram of the cross-sectional structure of a defect detection device for an ancient wooden structure building proposed by the present invention Figure 1 ;

[0023] Figure 4 A defect detection device for an ancient wooden structure building proposed by the present invention Figure 3 A schematic diagram of the enlarged structure of the middle A area;

[0024] Figure 5 A schematic diagram of the cross-sectional structure of a defect detection device for an ancient wooden structure building proposed by the present invention Figure 2 ;

[0025] Figure 6 A defect detection device for an ancient wooden structure building proposed by the present invention Figure 5 Schematic diagram of the enlarged structure of the middle B area;

[0026] Figure 7 A defect detection device for an ancient wooden structure building proposed by the present invention Figure 5 Schematic diagram of the enlarged structure of the middle C area;

[0027] Figure 8 A schematic diagram of the cross-sectional structure of a defect detection device for an ancient wooden structure building proposed by the present invention Figure 3 ;

[0028] Fig. 9 A defect detection device for an ancient wooden structure building proposed by the present invention Figure 8 Schematic diagram of the enlarged structure of the middle D area;

[0029] Fig.10 This is a schematic diagram of the connection structure of a limiting swivel sleeve and a limiting swivel ring of a defect detection device for ancient wooden structures proposed by the present invention.

[0030] In the figure: 1, detection probe; 2, arc plate; 21, pin plate; 31, rotating arc groove; 32, driving groove; 3, positioning sleeve; 4, limiting guide rail; 41, moving plate; 42, spring telescopic rod; 43, limiting guide rod; 44, reciprocating screw rod; 45, cross guide rod; 46, positioning arc plate; 47, air pump; 471, air guide tube; 5, rotating arc plate; 51, servo motor; 52, driving gear; 53, driven gear groove; 6, paddle plate; 61, coupling Moving teeth; 62, transmission shaft; 63, first pulley group; 631, second pulley group; 632, limit sleeve; 633, limit swivel; 64, driven gear; 65, dust storage tank; 651, dust suction tank; 652, suction tank; 653, dust filter plate; 654, dust exhaust pipe; 7, piston box; 71, piston plate; 72, return spring; 73, magnetic plate; 74, exhaust tank; 741, air blowing tank; 75, air blowing pipe; 76, limit plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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 cannot be understood as a limitation on the present invention.

[0033] Example:

[0034] Reference Figure 1-Figure 10, a defect detection device for an ancient wooden structure building comprises a detection probe 1 and two groups of arc plates 2, one ends of the two groups of arc plates 2 are rotatably connected by hinges, and the other ends of the two groups of arc plates 2 are fixedly connected by pin plates 21, positioning sleeves 3 are installed on the arc plates 2 on both sides, and the arc plates 2 are provided with opening and closing parts for driving the positioning sleeves 3 to translate, and also comprises: a rotating component, which is arranged on the arc plate 2, and the rotating component is used to drive the detection probe 1 to rotate along the outer wall of the positioning sleeve 3; a lifting component, which is arranged on the arc plate 2, and the lifting component is used to drive the positioning sleeves 3 on both sides to move up and down; a cleaning component, which is arranged on the positioning sleeve 3, and the cleaning component is used to clean the detection probe 1 and the surface of the wooden structure column to be tested.

[0035] Reference Figure 1-Figure 3 The opening and closing part includes two sets of limit guide rails 4, which are respectively fixed on the outer walls of the arc-shaped plates 2 on both sides. A movable plate 41 is slidably connected in the limit guide rails 4. A spring telescopic rod 42 is fixedly connected between the inner wall of the limit guide rails 4 and the top of the movable plate 41. The top of the movable plate 41 on one side is respectively fixedly connected to the limit guide rod 43, and the top of the movable plate 41 on the other side is respectively rotatably connected to the reciprocating screw rod 44 and the cross guide rod 45. The positioning sleeve 3 on one side is slidably sleeved on the two limit guide rods. The positioning sleeve 3 is connected between the two limiting guide rods 43, and the positioning sleeve 3 on the other side is sleeved between the reciprocating screw rod 44 and the cross guide rod 45, and the positioning sleeve 3 and the reciprocating screw rod 44 are threadedly connected, and the positioning sleeve 3 and the cross guide rod 45 are slidingly connected. The tops of the two limiting guide rods 43 and the tops of the reciprocating screw rod 44 and the cross guide rod 45 are fixedly connected with a positioning arc plate 46, and an air pump 47 is fixedly connected to the arc plate 2, and the output end of the air pump 47 is connected to the inner cavity of the spring telescopic rods 42 on both sides through an air guide pipe 471.

[0036] Through the setting of the above structure, the two groups of arc plates 2 are opened and wrapped around the outside of the wooden structure column, and the open and closed ends of the two groups of arc plates 2 are fixed by the pin plate 21, and then the air pump 47 is turned on, and gas is transported to the spring telescopic rods 42 on both sides through the air guide tube 471 to push the telescopic ends of the spring telescopic rods 42 to extend, so that the positioning sleeves 3 on both sides fit tightly, thereby forming a mutually fitting annular detection area, which is convenient for carrying out detection work on wooden structure columns of different positions and thicknesses, and effectively improves the convenience of detection.

[0037] Reference Figure 1-Figure 4, wherein the rotating assembly includes a rotating arc plate 5, a rotating arc groove 31 is provided in both sets of positioning sleeves 3, the rotating arc plate 5 is slidably connected in the rotating arc groove 31, the detection probe 1 is fixed on the outer wall of the rotating arc plate 5, a servo motor 51 is fixedly connected to the top of the positioning sleeve 3, a driving gear 52 is fixedly connected to the output shaft end of the servo motor 51, a driving groove 32 is provided on the outer wall of the positioning sleeve 3, the driving groove 32 is communicated with the inner cavity of the rotating arc groove 31, a driven tooth groove 53 is provided on the side wall of the rotating arc plate 5, the driving gear 52 passes through the driving groove 32 and is meshed with the driven tooth groove 53; the lifting assembly includes a paddle 6, the paddle 6 is fixed on the outer wall of the rotating arc plate 5, A linkage tooth 61 is fixedly connected to the bottom side wall of the paddle 6, a transmission shaft 62 is rotatably connected to the positioning sleeve 3, a first pulley group 63 is transmission-connected between the transmission shaft 62 and the cross guide rod 45, a second pulley group 631 is transmission-connected between the reciprocating screw rod 44 and the top of the cross guide rod 45, a driven gear 64 is fixedly connected to the bottom end of the transmission shaft 62, and the driven gear 64 is meshingly connected with the linkage tooth 61; the first pulley group 63 is sleeved on the cross guide rod 45, and the top of the rotating wheel is fixedly connected to a limited position rotating sleeve 632, and the limited position rotating sleeve 632 is rotatably connected to a limited position rotating ring 633, and the top of the limited position rotating ring 633 is fixedly connected to the bottom of the positioning sleeve 3.

[0038] Through the arrangement of the above structure, the servo motor 51 is turned on to drive the driving gear 52 to rotate, and the meshing relationship between the driving gear 52 and the driven tooth groove 53 is coordinated to make the rotating arc plate 5 rotate around the inner cavity of the rotating arc groove 31, thereby driving the detection probe 1 to rotate around the outer wall of the wooden structure column to complete the detection of one circle of the wooden structure column. At the same time, during the rotation of the rotating arc plate 5, the meshing relationship between the linkage teeth 61 and the driven gear 64 will drive the transmission shaft 62 to rotate after each rotation. At this time, the transmission effect of the first pulley group 63 will drive the cross guide rod 45 to rotate, and then cooperate with the second pulley group 631. The transmission action will drive the reciprocating screw 44 to rotate, so that the positioning sleeve 3 moves upward along the reciprocating screw 44, and because the positioning sleeves 3 on both sides are in a tightly fitted state, the positioning sleeves 3 on both sides will move upward synchronously, and in conjunction with the setting of the limit rotating sleeve 632 and the limit rotating ring 633, the first pulley group 63 will drive the cross guide rod 45 to rotate while also sliding upward along the cross guide rod 45, thereby ensuring that during the subsequent rotation of the rotating arc plate 5, the positioning sleeve 3 can continue to be driven to move upward along the reciprocating screw 44, thereby realizing all-round detection of the wooden structure column, effectively improving the detection accuracy and efficiency.

[0039] Reference Figure 4-Figure 9The cleaning assembly includes a piston box 7, which is fixed on the outer wall of the positioning sleeve 3. Piston plates 71 are slidably connected on both sides of the inner wall of the piston box 7. A return spring 72 is fixedly connected between the side wall of the piston plate 71 and the inner wall of the piston box 7. The rotating shaft of the driving gear 52 passes through the piston box 7 and is fixedly connected with a magnetic plate 73. Limiting plates 76 are fixedly connected on both sides of the inner cavity of the piston plate 71. The magnetic plates 73 and the piston plate 71 repel each other magnetically, and the repulsive force between the magnetic plates 73 and the piston plate 71 is greater than the thrust required for the compression of the return spring 72. force; an exhaust groove 74 is provided in the positioning sleeve 3, and the two ends of the exhaust groove 74 are respectively connected to the two ends of the inner cavity of the piston box 7; an air blowing groove 741 is provided in the rotating arc plate 5, and the air blowing groove 741 is connected to the inner cavity of the exhaust groove 74; an air blowing pipe 75 is fixedly connected to the rotating arc plate 5; two groups of air blowing pipes 75 are provided, and the two groups of air blowing pipes 75 are both connected to the inner cavity of the air blowing groove 741, and the two groups of air blowing pipes 75 are symmetrically arranged along the center of the detection probe 1, and the output ends of the two groups of air blowing pipes 75 are both toward the detection end of the detection probe 1, and a one-way valve is provided in the air blowing pipe 75.

[0040] It should be noted that the one-way valve in the air blowing pipe 75 can only allow the gas in the exhaust groove 74 to be discharged along the air blowing pipe 75 .

[0041] Through the arrangement of the above structure, when the driving gear 52 rotates, the magnetic plate 73 will be driven to rotate in the piston box 7. At this time, the repulsive effect between the magnetic plate 73 and the piston plate 71 will cause the piston box 7 to slide toward the side of the compression return spring 72, thereby compressing the gas in the piston box 7, and allowing this part of the gas to enter the exhaust groove 74 along the blowing groove 741, and then push open the one-way valve in the blowing pipe 75, and blow along the output end of the blowing pipe 75 to the detection end of the detection probe 1, so as to clean the detection end of the detection probe 1 and the surface of the wooden structure column, reduce the influence of dust and impurities on the detection results, and effectively improve the detection accuracy.

[0042] Reference Figure 5-Figure 7 A dust storage groove 65 is provided inside the paddle 6, a dust suction groove 651 is provided on the upper part of the side wall of the dust storage groove 65, the input end of the dust suction groove 651 faces the center of the positioning sleeve 3, a suction groove 652 is provided between the inner cavity of the dust storage groove 65 and the inner cavity of the blowing groove 741, and a one-way valve is provided in the suction groove 652; a dust filter plate 653 is fixedly connected to the inner wall of the dust storage groove 65, the dust filter plate 653 covers the input end of the suction groove 652, and the bottom of the dust storage groove 65 is fixed and connected to a dust exhaust pipe 654.

[0043] It should be noted that the one-way valve in the suction groove 652 can only allow the external airflow to be sucked into the blowing groove 741 .

[0044] Through the arrangement of the above structure, when the magnetic plate 73 and the piston plate 71 are separated from the repulsive area, the piston plate 71 will be reset under the rebound action of the reset spring 72, thereby generating a negative pressure suction effect in the piston box 7, and opening the one-way valve in the suction groove 652, so that the airflow around the wooden structure column is sucked into the dust storage groove 65, and is trapped in the dust storage groove 65 after being filtered by the dust filter plate 653, and the airflow part is sucked into the blowing groove 741 for the gas part, ensuring the continuation of the above-mentioned blowing effect, and the suction effect at this time will collect the dust raised during the blowing cleaning, reducing dust pollution, and at the same time, the surface of the wooden structure column is cleaned by suction, ensuring the cleanliness of the surface of the wooden structure column, and further improving the accuracy of the detection result.

[0045] Reference Figure 1-Figure 10 In the present invention, when in use, the two groups of arc plates 2 are opened and wrapped around the outside of the wooden structure column, and the open and closed ends of the two groups of arc plates 2 are fixed by the pin plate 21, and then the air pump 47 is turned on, and gas is transported to the spring telescopic rods 42 on both sides through the air guide tube 471 to push the telescopic ends of the spring telescopic rods 42 out, so that the positioning sleeves 3 on both sides fit tightly, thereby forming a mutually fitting annular detection area.

[0046] Then, the servo motor 51 is turned on to drive the driving gear 52 to rotate, and the meshing relationship between the driving gear 52 and the driven tooth groove 53 is coordinated to make the rotating arc plate 5 rotate around the inner cavity of the rotating arc groove 31, thereby driving the detection probe 1 to rotate around the outer wall of the wooden structure column to complete the detection of one circle of the wooden structure column. At the same time, during the rotation of the rotating arc plate 5, the meshing relationship between the linkage teeth 61 and the driven gear 64 will drive the transmission shaft 62 to rotate after each rotation. At this time, the transmission effect of the first pulley group 63 will drive the cross guide rod 45 to rotate, and then cooperate with the transmission effect of the second pulley group 631. , which will drive the reciprocating screw rod 44 to rotate, so that the positioning sleeve 3 moves upward along the reciprocating screw rod 44, and because the positioning sleeves 3 on both sides are in a tightly fitted state, the positioning sleeves 3 on both sides will move upward synchronously, and in conjunction with the setting of the limiting rotating sleeve 632 and the limiting rotating ring 633, the first pulley group 63 will drive the cross guide rod 45 to rotate while also sliding upward along the cross guide rod 45, so as to ensure that during the subsequent rotation of the rotating arc plate 5, the positioning sleeve 3 can continue to move upward along the reciprocating screw rod 44, thereby realizing all-round detection of the wooden structure column, effectively improving the detection accuracy and efficiency.

[0047] At the same time, when the driving gear 52 rotates, the magnetic plate 73 will be driven to rotate in the piston box 7. At this time, the repulsive effect between the magnetic plate 73 and the piston plate 71 will cause the piston box 7 to slide to the side of the compression return spring 72, thereby compressing the gas in the piston box 7, and allowing this part of the gas to enter the exhaust groove 74 along the blowing groove 741, and then push open the one-way valve in the blowing pipe 75, and blow along the output end of the blowing pipe 75 to the detection end of the detection probe 1, so as to clean the detection end of the detection probe 1 and the surface of the wooden structure column, reduce the influence of dust and impurities on the detection results, and effectively improve the detection accuracy; and when the magnetic plate 73 and the piston plate 71 are separated from each other, the gas will enter the exhaust groove 74 along the blowing groove 741, and then ... After leaving the repelling area, under the rebound action of the reset spring 72, the piston plate 71 will be reset, thereby generating a negative pressure suction effect in the piston box 7, and opening the one-way valve in the suction groove 652, so that the airflow around the wooden structure column is sucked into the dust storage groove 65, and is filtered by the dust filter plate 653 and trapped in the dust storage groove 65, while the airflow part is sucked into the blowing groove 741 for the gas part, ensuring the continuation of the above-mentioned blowing effect, and the suction effect at this time will collect the dust raised during the blowing cleaning, reducing dust pollution, and at the same time, the surface of the wooden structure column is cleaned by suction, ensuring the cleanliness of the surface of the wooden structure column, and further improving the accuracy of the detection result.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A defect detection device for an ancient wooden structure building, comprising a detection probe (1) and two sets of curved plates (2), characterized in that: One ends of the two groups of arc-shaped plates (2) are rotatably connected by hinges, and the other ends of the two groups of arc-shaped plates (2) are fixedly connected by pin plates (21). Positioning sleeves (3) are installed on the arc-shaped plates (2) on both sides, and the arc-shaped plates (2) are provided with opening and closing parts for driving the positioning sleeves (3) to translate, and further include: A rotating assembly, the rotating assembly being arranged on the arc-shaped plate (2), and being used for driving the detection probe (1) to rotate along the outer wall of the positioning sleeve (3); A lifting assembly, wherein the lifting assembly is arranged on the arc-shaped plate (2), and is used to drive the positioning sleeves (3) on both sides to move up and down; A cleaning component is arranged on the positioning sleeve (3), and is used to clean the detection probe (1) and the surface of the wooden structure column to be detected.

2. The defect detection device for ancient wooden structures according to claim 1 is characterized in that: The opening and closing part comprises two groups of limiting guide rails (4), the two groups of limiting guide rails (4) are respectively fixed on the outer walls of the arc-shaped plates (2) on both sides, the limiting guide rails (4) are slidably connected with a movable plate (41), a spring telescopic rod (42) is fixedly connected between the inner wall of the limiting guide rail (4) and the top of the movable plate (41), the two sides of the top of the movable plate (41) on one side are respectively fixedly connected with limiting guide rods (43), the two sides of the top of the movable plate (41) on the other side are respectively rotatably connected with a reciprocating screw rod (44) and a cross guide rod (45), the positioning sleeve (3) on one side is slidably sleeved on the two limiting guide rods ( 43), the positioning sleeve (3) on the other side is sleeved between the reciprocating screw rod (44) and the cross guide rod (45), and the positioning sleeve (3) and the reciprocating screw rod (44) are threadedly connected, and the positioning sleeve (3) and the cross guide rod (45) are slidably connected. The tops of the two limit guide rods (43) and the tops of the reciprocating screw rod (44) and the cross guide rod (45) are fixedly connected with positioning arc plates (46), and the arc plate (2) is fixedly connected with an air pump (47), and the output end of the air pump (47) is connected to the inner cavity of the spring telescopic rods (42) on both sides through an air guide tube (471).

3. The defect detection device for ancient wooden structures according to claim 2 is characterized in that: The rotating assembly comprises a rotating arc plate (5), two groups of the positioning sleeves (3) are provided with rotating arc grooves (31), the rotating arc plate (5) is slidably connected in the rotating arc grooves (31), the detection probe (1) is fixed on the outer wall of the rotating arc plate (5), the top of the positioning sleeve (3) is fixedly connected with a servo motor (51), the output shaft end of the servo motor (51) is fixedly connected with a driving gear (52), the outer wall of the positioning sleeve (3) is provided with a driving groove (32), the driving groove (32) is communicated with the inner cavity of the rotating arc groove (31), the side wall of the rotating arc plate (5) is provided with a driven tooth groove (53), the driving gear (52) passes through the driving groove (32) and is meshed with the driven tooth groove (53).

4. The defect detection device for ancient wooden structures according to claim 3 is characterized in that: The lifting assembly comprises a shifting plate (6), wherein the shifting plate (6) is fixed on the outer wall of the rotating arc plate (5), a linkage tooth (61) is fixedly connected to the bottom side wall of the shifting plate (6), a transmission shaft (62) is rotatably connected to the positioning sleeve (3), a first belt pulley group (63) is transmission-connected between the transmission shaft (62) and the cross guide rod (45), a second belt pulley group (631) is transmission-connected between the reciprocating screw rod (44) and the top of the cross guide rod (45), a driven gear (64) is fixedly connected to the bottom end of the transmission shaft (62), and the driven gear (64) is meshingly connected to the linkage tooth (61).

5. The defect detection device for ancient wooden buildings according to claim 4 is characterized in that: The top of the rotating wheel of the first pulley group (63) sleeved on the cross guide rod (45) is fixedly connected to a limited position rotating sleeve (632), and a limited position rotating ring (633) is rotatably connected inside the limited position rotating sleeve (632), and the top of the limited position rotating ring (633) is fixedly connected to the bottom of the positioning sleeve (3).

6. The defect detection device for ancient wooden buildings according to claim 4, characterized in that: The cleaning assembly comprises a piston box (7), wherein the piston box (7) is fixed on the outer wall of the positioning sleeve (3), piston plates (71) are slidably connected to both sides of the inner wall of the piston box (7), a return spring (72) is fixedly connected between the side wall of the piston plate (71) and the inner wall of the piston box (7), the rotating shaft of the driving gear (52) passes through the piston box (7) and is fixedly connected to a magnetic plate (73), an exhaust groove (74) is provided in the positioning sleeve (3), and two ends of the exhaust groove (74) are respectively connected to two ends of the inner cavity of the piston box (7), an air blowing groove (741) is provided in the rotating arc plate (5), and the air blowing groove (741) is connected to the inner cavity of the exhaust groove (74), and an air blowing pipe (75) is fixedly connected to the rotating arc plate (5).

7. A defect detection device for ancient wooden buildings according to claim 6, characterized in that: Two groups of the air blowing pipes (75) are provided, and both groups of the air blowing pipes (75) are connected to the inner cavity of the air blowing groove (741). The two groups of the air blowing pipes (75) are symmetrically arranged along the center of the detection probe (1). The output ends of the two groups of the air blowing pipes (75) are both oriented toward the detection end of the detection probe (1), and a one-way valve is arranged inside the air blowing pipe (75).

8. The defect detection device for ancient wooden buildings according to claim 6, characterized in that: Limiting plates (76) are fixedly connected to both sides of the inner cavity of the piston plate (71), the magnetic plate (73) and the piston plate (71) are magnetically repelled from each other, and the repulsive force between the magnetic plate (73) and the piston plate (71) is greater than the thrust required for compression of the return spring (72).

9. The defect detection device for ancient wooden buildings according to claim 6, characterized in that: A dust storage groove (65) is provided inside the paddle (6), a dust suction groove (651) is provided on the upper part of the side wall of the dust storage groove (65), an input end of the dust suction groove (651) faces the center of the positioning sleeve (3), a suction groove (652) is provided between the inner cavity of the dust storage groove (65) and the inner cavity of the blowing groove (741), and a one-way valve is provided in the suction groove (652).

10. The defect detection device for ancient wooden buildings according to claim 9, characterized in that: A dust filter plate (653) is fixedly connected to the inner wall of the dust storage groove (65), and the dust filter plate (653) covers the input end of the suction groove (652). The bottom of the dust storage groove (65) is fixed and connected to a dust exhaust pipe (654).

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