CN116165267A

CN116165267A - Crack detection tool for splice of wooden building structure

Info

Publication number: CN116165267A
Application number: CN202211267175.XA
Authority: CN
Inventors: 费颖超
Original assignee: Hubei Salaima Wood Structure Engineering Co ltd
Current assignee: Hubei Salaima Wood Structure Engineering Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-05-26

Abstract

The invention relates to the technical field of wooden buildings, in particular to a crack detection tool for a splice of a wooden building structure, which replaces manual ascending to carry out remote shooting visual inspection and ultrasonic flaw detection, reduces the risk and labor intensity and improves the working efficiency; comprises a camera and an ultrasonic probe; still include the loop wheel machine, two lift trucks, two ring rails, encircle car and arm, the loop wheel machine is the ring shape, the internally mounted of loop wheel machine has two lift trucks, two lift truck symmetrical arrangement, two ring rails are installed to the level on the outer wall of loop wheel machine, encircle car and two ring rails and pass through a plurality of rail wheel slides and be connected, the stiff end of arm is vertical to be installed on encircling the car, the arm is provided with a plurality of articulated arms that connect gradually, install camera and ultrasonic probe on the removal end of arm, camera and ultrasonic probe parallel arrangement.

Description

Crack detection tool for splice of wooden building structure

Technical Field

The invention relates to the technical field of wooden buildings, in particular to a crack detection tool for a splice of a wooden building structure.

Background

The wooden building structure is formed by splicing various wooden components, the mortise and tenon splicing is a common splicing mode, the wooden components are dug out of corresponding grooves at the splicing positions, then the grooves of the wooden components are meshed and spliced, but in actual work, due to machining errors, the grooves of the wooden components are relatively large and small in size and design when in mortise and tenon splicing, the splicing positions of the wooden building structure are extruded and expanded to form cracks, the cracks can cause adverse effects on the splicing strength of the wooden building structure, therefore, crack detection is required at the splicing positions, at present, most of crack detection is carried out on wood by using an ultrasonic flaw detector and combining a visual inspection method, obvious external cracks can be found by visual inspection, the ultrasonic flaw detector can detect tiny cracks which are difficult to find in the wood, the ultrasonic flaw detector generally adopts manual handheld operation, the mortise and tenon splicing structure concentrated at the joint of a room beam and a stand column requires staff to ascend the stand column for detection work, but the ascending work has a certain danger, and the staff is inconvenient to operate due to the limited space of the working environment after the staff is high, the staff is required to climb the work intensity is low, and the work efficiency is low.

Disclosure of Invention

In order to solve the technical problems, the invention provides the crack detection tool for the splice of the wooden building structure, which replaces manual ascending to carry out remote shooting visual inspection and ultrasonic flaw detection, reduces the dangerousness and labor intensity and improves the working efficiency.

The invention relates to a crack detection tool for a splice part of a wooden building structure, which comprises a camera and an ultrasonic probe; the device comprises a ring frame, two lifting carts, two ring rails, a surrounding cart and a mechanical arm, wherein the ring frame is in a circular ring shape, the two lifting carts are arranged in the ring frame symmetrically, the two ring rails are horizontally arranged on the outer wall of the ring frame, the surrounding cart is in sliding connection with the two ring rails through a plurality of track wheels, the fixed end of the mechanical arm is vertically arranged on the surrounding cart, the mechanical arm is provided with a plurality of joint arms which are connected in sequence, a camera and an ultrasonic probe are arranged on the moving end of the mechanical arm, and the camera and the ultrasonic probe are arranged in parallel; the method comprises the steps of electrically connecting two lifting carts, surrounding carts, a mechanical arm, a camera and an ultrasonic probe with a controller, arranging a display on the controller, sleeving a ring frame on a stand column of a wooden building structure, enabling the two lifting carts to be in close contact with the stand column, operating the two lifting carts through the controller, driving the ring frame to move upwards along the stand column, stopping and locking the two lifting carts when approaching to the joint of the stand column and a house beam, operating the surrounding carts to move along two circular rails, enabling the mechanical arm to reach the lower position of one joint, operating the mechanical arm to move the camera and the ultrasonic probe close to the joint of the wooden building structure, enabling the camera to visually inspect the outside of the joint to find obvious external cracks, operating the mechanical arm to drive the ultrasonic probe to contact with the joint, starting the ultrasonic probe to conduct ultrasonic flaw detection on the inside of the wooden building structure at the joint, detecting cracks inside the wooden building structure, contracting the mechanical arm after detecting one joint, operating the surrounding carts to change positions along the two circular rails, and conducting crack detection on the next joint until all the stand columns and the joint are detected by the ultrasonic probe, and the remote flaw detection is achieved, and the working efficiency is improved, and the working efficiency is not required to be improved.

Preferably, the ring frame comprises two ring plates, a hinge and two bolts, one ends of the two ring plates are hinged through the hinge in a rotating way, the other ends of the two ring plates are provided with two bolt plates, bolt holes are formed in the bolt plates, the two bolts are respectively inserted into the bolt holes of the bolt plates of the two ring plates to connect the two ring plates, the two ring plates form a ring, two half ring rails are horizontally arranged on the outer walls of the two ring plates, and the two lifting vehicles are respectively arranged on the inner walls of the two ring plates; when the device starts to work, the two annular plates are opened through the hinge, the two annular plates are sleeved on the upright post, the two annular plates are butted into a circular ring through the two bolts, the four half annular rails form two complete annular rails, the device is convenient and quick to assemble and disassemble, the time for work preparation is shortened, and the work efficiency is improved.

Preferably, the lifting vehicle comprises a wheel frame and a plurality of hub motors, wherein the wheel frame is provided with a middle vertical plate and left and right side plates, the left and right side plates of the wheel frame are respectively provided with two hub motors, and the hub motors are symmetrically arranged left and right; the wheel carrier drives the two annular plates to move up and down along the stand column, and the wheel carrier stops and locks the wheel hub motors after reaching the vicinity of the splicing position, so that other auxiliary equipment is not needed to replace workers for ascending, the practicability is high, and common rollers of the same specification can be used for replacing a part of wheel hub motors to reduce the cost.

Preferably, the wheel surfaces of the hub motors are arc-shaped, and anti-skid patterns are arranged on the arc-shaped wheel surfaces; the arc wheel faces of the hub motors can increase the contact area between the hub motors and the surface of the upright post, and the anti-skid patterns are arranged to improve the friction force between the hub motors and the surface of the upright post and the stability of the working process.

Preferably, the device further comprises a plurality of sliding bars, a plurality of sliding sleeves and a plurality of springs, wherein the outer side walls of the middle vertical plates of the two wheel frames are respectively provided with the two later sliding bars, the lower end surfaces of the two annular plates are respectively provided with the two sliding sleeves, the plurality of sliding bars are respectively in sliding connection with the plurality of sliding sleeves, the plurality of springs are respectively sleeved on the plurality of sliding bars, and the two ends of the plurality of springs are respectively connected with the plurality of springs and the two wheel frames; the two wheel frames are in sliding connection with the two annular plates through the plurality of sliding rods and the plurality of sliding sleeves, the elastic force of the plurality of springs enables the wheel faces of the plurality of hub motors to keep pressure with the surfaces of the stand columns all the time, stability is improved, and meanwhile tools can be loaded on the stand columns with different diameters, and universality is improved.

Preferably, the encircling vehicle comprises two encircling frames, a vehicle panel, a plurality of rail wheels and two encircling motors, wherein the two encircling frames are arranged on the inner wall of the vehicle panel, the fixed ends of the mechanical arms are arranged on the outer wall of the vehicle panel, the rail wheels are rotatably arranged at the left end and the right end of the two encircling frames, the two rail wheels at the left side are in transmission connection through a transmission shaft, the two rail wheels at the right side are in transmission connection through another transmission shaft, the plurality of rail wheels are respectively arranged in the two encircling rails in a rolling way, the two encircling motors are arranged at the left end and the right end of one encircling frame, and the output shafts of the two encircling motors are respectively in transmission connection with the two rail wheels; the two surrounding motors drive the plurality of rail wheels to roll in the two ring rails, so that the plurality of rail wheels drive the mechanical arm to move around the upright post through the two surrounding frames and the vehicle panel, the mechanical arm can reach the lower parts of a plurality of splicing parts of the wooden building structure, and the working efficiency is improved.

Preferably, the vehicle comprises a vehicle panel, a limiting wheel and a tension spring, wherein the upper end of the vehicle panel is provided with a flat plate extending into the inner side of the annular plate, the flat plate is provided with a chute, a shaft seat of the limiting wheel is slidably arranged in the chute of the flat plate, the limiting wheel is in rolling contact with the inner wall of the annular plate, and two ends of the tension spring are respectively provided with the shaft seat of the limiting wheel and the flat plate; the pulling force of extension spring makes the inner wall of spacing wheel and two annular plates keep rolling contact, and spacing wheel is spacing to the car panel, reduces the inside and outside rocking of car panel, improves the stability of during operation.

Preferably, the mechanical arm comprises a lifting push rod, a first rotating table, a horizontal push rod, a second rotating table and a third rotating table, wherein the fixed end of the lifting push rod is arranged on the outer wall of the vehicle panel through a bracket; the lifting push rod stretches or shortens to drive the camera and the ultrasonic probe to rise or lower, the first rotating platform drives the camera and the ultrasonic probe to swing horizontally and leftwards, the second rotating platform drives the camera and the ultrasonic probe to rotate at an angle which is close to or far away from the spliced part, the third rotating platform drives the camera and the ultrasonic probe to change pitching angles, and the first lifting push rod, the first rotating platform, the horizontal push rod, the second rotating platform and the third rotating platform cooperate to enable the camera and the ultrasonic probe to obtain multiple degrees of freedom, so that the camera and the ultrasonic probe can be flexibly adjusted, and practicability is improved.

Compared with the prior art, the invention has the beneficial effects that: the method comprises the steps of electrically connecting two lifting carts, surrounding carts, a mechanical arm, a camera and an ultrasonic probe with a controller, arranging a display on the controller, sleeving a ring frame on a stand column of a wooden building structure, enabling the two lifting carts to be in close contact with the stand column, operating the two lifting carts through the controller, driving the ring frame to move upwards along the stand column, stopping and locking the two lifting carts when approaching to the joint of the stand column and a house beam, operating the surrounding carts to move along two circular rails, enabling the mechanical arm to reach the lower position of one joint, operating the mechanical arm to move the camera and the ultrasonic probe close to the joint of the wooden building structure, enabling the camera to visually inspect the outside of the joint to find obvious external cracks, operating the mechanical arm to drive the ultrasonic probe to contact with the joint, starting the ultrasonic probe to conduct ultrasonic flaw detection on the inside of the wooden building structure at the joint, detecting cracks inside the wooden building structure, contracting the mechanical arm after detecting one joint, operating the surrounding carts to change positions along the two circular rails, and conducting crack detection on the next joint until all the stand columns and the joint are detected by the ultrasonic probe, and the remote flaw detection is achieved, and the working efficiency is improved, and the working efficiency is not required to be improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic side elevational view of the present invention;

FIG. 3 is a schematic view of the structure of the present invention in an operating state;

FIG. 4 is a schematic view of the structure of the circular rail, the surrounding cart, the mechanical arm, the camera, the ultrasonic probe, etc.;

FIG. 5 is a schematic view of the axial side structure of the circular rail, the encircling vehicle, the mechanical arm, the camera, the ultrasonic probe, etc.;

FIG. 6 is an enlarged schematic view of the structure of the ring frame, lift truck, etc.;

the reference numerals in the drawings: 1. a ring frame; 2. a lifting vehicle; 3. a circular rail; 4. surrounding the vehicle; 5. a mechanical arm; 6. a camera; 7. an ultrasonic probe; 8. a ring plate; 9. a hinge; 10. a plug pin; 11. a wheel carrier; 12. a hub motor; 13. a slide bar; 14. a sliding sleeve; 15. a spring; 16. a surrounding frame; 17. a vehicle panel; 18. a rail wheel; 19. surrounding the motor; 20. a limiting wheel; 21. a tension spring; 22. lifting the push rod; 23. a first rotating platform; 24. a horizontal push rod; 25. a second rotating table; 26. and a rotating platform III.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. This invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1

The utility model provides a crack detection frock in concatenation department of wooden building structure, includes camera 6 and ultrasonic probe 7; the device comprises a ring frame 1, two lifting vehicles 2, two ring rails 3, a surrounding vehicle 4 and a mechanical arm 5, wherein the ring frame 1 is in a ring shape, the two lifting vehicles 2 are installed in the ring frame 1, the two lifting vehicles 2 are symmetrically arranged, the two ring rails 3 are horizontally installed on the outer wall of the ring frame 1, the surrounding vehicle 4 is in sliding connection with the two ring rails 3 through a plurality of track wheels, the fixed end of the mechanical arm 5 is vertically installed on the surrounding vehicle 4, the mechanical arm 5 is provided with a plurality of joint arms which are sequentially connected, a camera 6 and an ultrasonic probe 7 are installed on the moving end of the mechanical arm 5, and the camera 6 and the ultrasonic probe 7 are arranged in parallel; the two lifting carts 2, the surrounding carts 4, the mechanical arm 5, the camera 6 and the ultrasonic probe 7 are electrically connected with the controller, the controller is provided with a display, the ring frame 1 is sleeved on the upright post of the wooden building structure, the two lifting carts 2 are in close contact with the upright post, the two lifting carts 2 are operated by the controller to operate, the two lifting carts 2 drive the ring frame 1 to move upwards along the upright post, when approaching the joint of the upright post and the house beam, the two lifting carts 2 are stopped and locked, the surrounding carts 4 are operated to move along the two ring rails 3, the mechanical arm 5 reaches the lower position of one joint, the mechanical arm 5 is operated to move the camera 6 and the ultrasonic probe 7 close to the joint of the wooden member, the camera 6 is operated to visually detect the outer part of the joint, so as to find obvious external cracks, the mechanical arm 5 is operated to drive the ultrasonic probe 7 to contact with the joint, the ultrasonic probe 7 is started to detect the inner cracks of the wooden member, after one joint is detected, the mechanical arm 5 is contracted, the surrounding carts 4 is operated to detect the two ring rails along the joint 3, the two joint positions are changed, the work efficiency is improved, and the work is not needed until the work is finished, and the work is reduced, and the work is not needed.

Example 2

The utility model provides a crack detection frock in concatenation department of wooden building structure, includes camera 6 and ultrasonic probe 7; the device comprises a ring frame 1, two lifting vehicles 2, two ring rails 3, a surrounding vehicle 4 and a mechanical arm 5, wherein the ring frame 1 is in a ring shape, the two lifting vehicles 2 are installed in the ring frame 1, the two lifting vehicles 2 are symmetrically arranged, the two ring rails 3 are horizontally installed on the outer wall of the ring frame 1, the surrounding vehicle 4 is in sliding connection with the two ring rails 3 through a plurality of track wheels, the fixed end of the mechanical arm 5 is vertically installed on the surrounding vehicle 4, the mechanical arm 5 is provided with a plurality of joint arms which are sequentially connected, a camera 6 and an ultrasonic probe 7 are installed on the moving end of the mechanical arm 5, and the camera 6 and the ultrasonic probe 7 are arranged in parallel; the ring frame 1 comprises two ring plates 8, a hinge 9 and two bolts 10, one ends of the two ring plates 8 are rotatably hinged through the hinge 9, two bolt plates are arranged at the other ends of the two ring plates 8, bolt holes are formed in the bolt plates, the two bolts 10 are respectively inserted into the bolt holes of the plurality of bolt plates of the two ring plates 8 to connect the two ring plates 8, the two ring plates 8 form a ring, two half ring rails 3 are horizontally arranged on the outer walls of the two ring plates 8, and the two lifting carts 2 are respectively arranged on the inner walls of the two ring plates 8; the lifting vehicle 2 comprises a wheel frame 11 and a plurality of wheel hub motors 12, wherein the wheel frame 11 is provided with a middle vertical plate and left and right side plates, the left and right side plates of the wheel frame 11 are respectively provided with two wheel hub motors 12, and the wheel hub motors 12 are symmetrically arranged left and right; the wheel surfaces of the wheel hub motors 12 are arc-shaped, and anti-skid patterns are arranged on the arc-shaped wheel surfaces; the two sliding rods 13 are respectively arranged on the outer side walls of the middle vertical plates of the two wheel frames 11, the two sliding sleeves 14 are respectively arranged on the lower end faces of the two annular plates 8, the plurality of sliding rods 13 are respectively connected with the plurality of sliding sleeves 14 in a sliding manner, the plurality of springs 15 are respectively sleeved on the plurality of sliding rods 13, and the two ends of the plurality of springs 15 are respectively connected with the plurality of springs 15 and the two wheel frames 11; when the wheel hub device works, the two ring plates 8 are opened through the hinge 9, the two ring plates 8 are sleeved on the upright post, the two ring plates 8 are butted into a circular ring through the two bolts 10, the four half ring rails 3 form two complete ring rails 3, after the two ring plates 8 are butted, the wheel surfaces of the wheel hub motors 12 are always kept under pressure with the surface of the upright post under the elastic action of the springs 15, the wheel hub motors 12 synchronously rotate, the wheel carrier 11 drives the two ring plates 8 to move up and down along the upright post, and the wheel hub motors 12 stop and lock after reaching the vicinity of the spliced part, so that the stability is improved.

Example 3

The utility model provides a crack detection frock in concatenation department of wooden building structure, includes camera 6 and ultrasonic probe 7; the device comprises a ring frame 1, two lifting vehicles 2, two ring rails 3, a surrounding vehicle 4 and a mechanical arm 5, wherein the ring frame 1 is in a ring shape, the two lifting vehicles 2 are installed in the ring frame 1, the two lifting vehicles 2 are symmetrically arranged, the two ring rails 3 are horizontally installed on the outer wall of the ring frame 1, the surrounding vehicle 4 is in sliding connection with the two ring rails 3 through a plurality of track wheels, the fixed end of the mechanical arm 5 is vertically installed on the surrounding vehicle 4, the mechanical arm 5 is provided with a plurality of joint arms which are sequentially connected, a camera 6 and an ultrasonic probe 7 are installed on the moving end of the mechanical arm 5, and the camera 6 and the ultrasonic probe 7 are arranged in parallel; the surrounding vehicle 4 comprises two surrounding frames 16, a vehicle panel 17, a plurality of rail wheels 18 and two surrounding motors 19, wherein the two surrounding frames 16 are arranged on the inner wall of the vehicle panel 17, the fixed end of the mechanical arm 5 is arranged on the outer wall of the vehicle panel 17, the rail wheels 18 are rotatably arranged at the left end and the right end of the two surrounding frames 16, the two rail wheels 18 positioned at the left side are in transmission connection through one transmission shaft, the two rail wheels 18 positioned at the right side are in transmission connection through the other transmission shaft, the plurality of rail wheels 18 are respectively arranged in the two surrounding rails 3 in a rolling way, the two surrounding motors 19 are arranged at the left end and the right end of one surrounding frame 16, and the output shafts of the two surrounding motors 19 are respectively in transmission connection with the two rail wheels 18; the upper end of the vehicle panel 17 is provided with a flat plate extending into the inner side of the annular plate 8, the flat plate is provided with a chute, a shaft seat of the limiting wheel 20 is slidably arranged in the chute of the flat plate, the limiting wheel 20 is in rolling contact with the inner wall of the annular plate 8, and two ends of the tension spring 21 are respectively provided with the shaft seats of the two limiting wheels 20 and the flat plate; the mechanical arm 5 comprises a lifting push rod 22, a first rotary table 23, a horizontal push rod 24, a second rotary table 25 and a third rotary table 26, wherein the fixed end of the lifting push rod 22 is arranged on the outer wall of the vehicle panel 17 through a bracket, the lifting push rod 22 is vertically arranged, the first rotary table 23 is arranged at the top of the moving end of the lifting push rod 22, the fixed end of the horizontal push rod 24 is arranged on the rotary table of the horizontal push rod 24 through a bracket, the second rotary table 25 is arranged at the top of the moving end of the horizontal push rod 24, the third rotary table 26 is arranged on the rotary table of the second rotary table 25 through a bracket, the third rotary table 26 and the second rotary table 25 are vertically arranged, and the camera 6 and the ultrasonic probe 7 are arranged on the rotary table of the third rotary table 26 through connecting plates; the two encircling motors 19 drive the plurality of track wheels 18 to roll in the two encircling rails 3, the plurality of track wheels 18 drive the mechanical arm 5 to move around the upright posts through the encircling frames 16 and the vehicle panel 17, in the moving process, the tension of the tension springs 21 enables the limiting wheels 20 to keep rolling contact with the inner walls of the two encircling panels 8, the limiting wheels 20 limit the vehicle panel 17, shaking inside and outside the vehicle panel 17 is reduced, the camera 6 and the ultrasonic probe 7 can reach the lower parts of a plurality of joints of a wooden building structure, the lifting push rod 22 stretches or shortens to drive the camera 6 and the ultrasonic probe 7 to rise or fall, the first rotary table 23 rotates to drive the camera 6 and the ultrasonic probe 7 to horizontally swing left and right, the second rotary table 25 rotates to drive the camera 6 and the ultrasonic probe 7 to rotate at an angle, the third rotary table 26 rotates to drive the camera 6 and the ultrasonic probe 7 to change the pitching angle, the lifting push rod 22, the first rotary table 23, the second rotary table 25 and the third rotary table 26 cooperate to move to enable the camera 6 and the ultrasonic probe 7 to be aligned with the joints, and the ultrasonic probe 7 can not be aligned with the joints.

As shown in fig. 1 to 6, when the tool for detecting cracks at the joint of a wooden building structure is in operation, firstly, two ring plates 8 are sleeved on a stand column of the wooden building structure and are in butt joint, a plurality of hub motors 12 are in close contact with the stand column, then, the plurality of hub motors 12 operate, the plurality of hub motors 12 drive the two ring plates 8 to move upwards along the stand column, when the joint of the stand column and a house beam is approached, the plurality of hub motors 12 stop and lock, then, two surrounding motors 19 operate, so that a vehicle panel 17 drives a lifting push rod 22 to rotate around the stand column, a camera 6 and an ultrasonic probe 7 reach the lower position of one joint, the lifting push rod 22, a first rotary table 23, a horizontal push rod 24, a second rotary table 25 and a third rotary table 26 cooperate to enable the camera 6 and the ultrasonic probe 7 to be close to the joint of a wooden member, the camera 6 is enabled to operate on the outer part of the joint, the ultrasonic probe 7 is enabled to contact with the joint, the ultrasonic probe 7 is enabled to start, when the joint of the stand column and the house beam is close to the joint, then, the two surrounding motors are operated, the lifting push rod 17 drives the lifting push rod 22 to rotate around the stand column, the two joint is enabled to rotate until the two joint rails 18 are completely detected, and finally, the two joint rings are completely detected by detecting the two crack detection wheels are completely, and the joint of the two joint positions are completely detected, and the joint of the joint is changed, and the joint position of the joint is detected by the rail, and the rail is detected by the rail is by the rail, and the rail is detected by the rail, and the rail is by the rail.

The main functions realized by the invention are as follows: the remote camera shooting visual inspection and ultrasonic flaw detection are performed instead of manual ascending, the danger and the labor intensity are reduced, and the working efficiency is improved.

The installation mode, the connection mode or the setting mode of the crack detection tool for the splice of the wooden building structure are common mechanical modes, and can be implemented as long as the beneficial effects of the crack detection tool can be achieved; the camera 6, the ultrasonic probe 7, the circular rail 3, the hub motor 12, the hinge 9, the spring 15, the rail wheel 18, the surrounding motor 19, the limiting wheel 20, the tension spring 21, the lifting push rod 22, the rotary table I23, the horizontal push rod 24, the rotary table II 25 and the rotary table III 26 of the crack detection tool at the joint of the wooden building structure are purchased in the market, and a person skilled in the art only needs to install and operate according to the attached using instruction without the creative labor of the person skilled in the art.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.

Claims

1. The utility model provides a crack detection frock in concatenation department of wooden building structure, includes camera (6) and ultrasonic transducer (7); the device is characterized by further comprising a ring frame (1), two lifting carts (2), two ring rails (3), a surrounding cart (4) and a mechanical arm (5), wherein the ring frame (1) is a ring, two lifting carts (2) are installed in the ring frame (1), the two lifting carts (2) are symmetrically arranged, the two ring rails (3) are horizontally installed on the outer wall of the ring frame (1), the surrounding cart (4) and the two ring rails (3) are connected through a plurality of track wheels in a sliding mode, the fixed end of the mechanical arm (5) is vertically installed on the surrounding cart (4), the mechanical arm (5) is provided with a plurality of joint arms which are sequentially connected, and a camera (6) and an ultrasonic probe (7) are installed on the moving end of the mechanical arm (5) and are arranged in parallel.

2. The crack detection tool for the splice of the wooden building structure according to claim 1, wherein the ring frame (1) comprises two ring plates (8), a hinge (9) and two bolts (10), one ends of the two ring plates (8) are hinged through the hinge (9) in a rotating mode, two bolt plates are arranged at the other ends of the two ring plates (8), bolt holes are formed in the bolt plates, the two bolts (10) are respectively inserted into the bolt holes of the bolt plates of the two ring plates (8) to connect the two ring plates (8), the two ring plates (8) form a circular ring, two half ring rails (3) are horizontally arranged on the outer walls of the two ring plates (8), and the two lifting carts (2) are respectively arranged on the inner walls of the two ring plates (8).

3. The crack detection tool for the splice of the wooden building structure according to claim 2, wherein the lifting vehicle (2) comprises a wheel frame (11) and a plurality of hub motors (12), the wheel frame (11) is provided with a middle vertical plate and left and right side plates, the left and right side plates of the wheel frame (11) are respectively provided with two hub motors (12), and the hub motors (12) are arranged in a bilateral symmetry manner.

4. A crack detection fixture for a splice of a wooden building structure as claimed in claim 3, wherein the tread of the plurality of hub motors (12) is arranged in an arc shape and the tread of the arc shape is provided with anti-skid patterns.

5. A crack detection tool for a splice of a wooden building structure according to claim 3, further comprising a plurality of sliding rods (13), a plurality of sliding sleeves (14) and a plurality of springs (15), wherein the outer side walls of the middle vertical plates of the two wheel frames (11) are respectively provided with the two sliding rods (13), the lower end surfaces of the two annular plates (8) are respectively provided with the two sliding sleeves (14), the plurality of sliding rods (13) are respectively in sliding connection with the plurality of sliding sleeves (14), the plurality of springs (15) are respectively sleeved on the plurality of sliding rods (13), and the two ends of the plurality of springs (15) are respectively connected with the plurality of springs (15) and the two wheel frames (11).

6. The crack detection tool for the splice of the wooden building structure according to claim 1, wherein the surrounding vehicle (4) comprises two surrounding frames (16), a vehicle panel (17), a plurality of rail wheels (18) and two surrounding motors (19), the two surrounding frames (16) are arranged on the inner wall of the vehicle panel (17), the fixed ends of the mechanical arms (5) are arranged on the outer wall of the vehicle panel (17), the rail wheels (18) are rotatably arranged at the left end and the right end of the two surrounding frames (16), the two rail wheels (18) at the left side are in transmission connection through one transmission shaft, the two rail wheels (18) at the right side are in transmission connection through the other transmission shaft, the plurality of rail wheels (18) are respectively arranged in the two surrounding rails (3) in a rolling mode, the two surrounding motors (19) are arranged at the left end and the right end of the surrounding frames (16), and the output shafts of the two surrounding motors (19) are respectively in transmission connection with the two rail wheels (18).

7. The crack detection tool for the splice of the wooden building structure according to claim 6, further comprising a limiting wheel (20) and a tension spring (21), wherein a flat plate extending into the inner side of the annular plate (8) is arranged at the upper end of the vehicle panel (17), a sliding groove is formed in the flat plate, a shaft seat of the limiting wheel (20) is slidably arranged in the sliding groove of the flat plate, the limiting wheel (20) is in rolling contact with the inner wall of the annular plate (8), and two shaft seats and flat plates of the two limiting wheels (20) are respectively arranged at two ends of the tension spring (21).

8. The crack detection tool for the splice of the wooden building structure according to claim 1, wherein the mechanical arm (5) comprises a lifting push rod (22), a first rotary table (23), a horizontal push rod (24), a second rotary table (25) and a third rotary table (26), the fixed end of the lifting push rod (22) is mounted on the outer wall of the vehicle panel (17) through a bracket, the lifting push rod (22) is vertically arranged, the first rotary table (23) is mounted on the top of the moving end of the lifting push rod (22), the fixed end of the horizontal push rod (24) is mounted on the rotary table of the horizontal push rod (24) through a bracket, the second rotary table (25) is mounted on the top of the moving end of the horizontal push rod (24), the third rotary table (26) is mounted on the rotary table of the second rotary table (25) through a bracket, the third rotary table (26) and the second rotary table (25) are vertically arranged, and the camera (6) and the ultrasonic probe (7) are mounted on the rotary table of the third rotary table (26) through a connecting plate.