CN112649501A

CN112649501A - Method for verifying internal defects of concrete by controlling percussion drill drilling based on vibration signal

Info

Publication number: CN112649501A
Application number: CN202011266162.1A
Authority: CN
Inventors: 李萍; 张劲泉; 王陶; 王磊; 樊平; 郑康琳
Original assignee: Research Institute of Highway Ministry of Transport
Current assignee: Research Institute of Highway Ministry of Transport
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-04-13
Anticipated expiration: 2040-11-13
Also published as: CN112649501B

Abstract

The invention provides a method for verifying internal defects of concrete by controlling a percussion drill to drill holes based on vibration signals, which comprises the following steps: setting a plurality of vibration signal thresholds according to the vibration characteristic difference when the percussion drill drills into different media, and pre-storing the thresholds in a server; starting the percussion drill, and acquiring a vibration signal by using a sensor at the tail end of a drill bit of the percussion drill; determining the type of the acquired vibration signal; the method takes vibration signal identification as a main technical means, and acquires the vibration of different interfaces such as concrete, steel bars, corrugated pipe skin, steel bundles, air and the like after the impact drill drills into the surface of the concrete, and identifies the vibration signal, so that the position of a drill hole is judged whether a hole defect exists according to the medium drilled by the impact drill; or the working state of the impact drill is adjusted according to the drilling position, so that the damage of the impact drill to the steel bars and the steel bundles in the drilling position is reduced.

Description

Method for verifying internal defects of concrete by controlling percussion drill drilling based on vibration signal

Technical Field

The invention relates to the technical field of concrete internal defect detection, in particular to a method for verifying concrete internal defects by controlling a percussion drill based on a vibration signal.

Background

The impact drill is widely used in the field of civil engineering, for example, the verification of internal defects of concrete and the full grouting condition of a prestressed pipeline requires endoscopic exploration after drilling, and the micro-damage verification is carried out on a nondestructive testing result.

Before drilling, generally positioning, determining the position of a steel bar/the position of a prestressed pipeline and the like, then drilling a target position, and observing the condition in the drilled hole; however, the steel bar/prestressed pipe has positioning errors, and in order to avoid the damage of the drill bit to the steel bar/prestressed steel beam, a worker who needs to drill holes judges the change condition of the drilling medium according to experience.

However, once the manual judgment process is delayed or misjudged, the personnel can be injured due to rebound of the percussion drill; or the drill bit has contacted the rebar/pre-stressed pipe before it is discovered by the worker that the drill bit has damaged the rebar/pre-stressed pipe, there is a lack of a method to reduce the above-mentioned problems.

Disclosure of Invention

The invention provides a method for verifying internal defects of concrete by controlling percussion drill drilling based on vibration signals, which is used for rapidly judging whether a steel bar/prestressed pipe exists below a target position in the process of drilling by a drill bit, so that the aim of stopping the drill bit in time is fulfilled, and the condition that the drill bit is damaged because the drill bit cannot stop after encountering the steel bar/prestressed pipe is further reduced.

The invention provides a method for verifying internal defects of concrete by controlling a percussion drill to drill holes based on vibration signals, which comprises the following steps:

s1, setting a plurality of vibration signal thresholds according to the vibration characteristic difference of the impact drill acting on different media, and pre-storing the thresholds in a server;

s2, starting the percussion drill, and acquiring a vibration signal by using a sensor at the tail end of a drill bit of the percussion drill;

s3, calling a vibration signal threshold value prestored in the server, comparing the collected vibration signal with the prestored vibration signal threshold value, and determining the type of the collected vibration signal;

and S4, controlling the working state of the percussion drill according to the vibration signal type determined by the comparison result.

Preferably, the first and second electrodes are formed of a metal,

the vibration signal threshold includes: the vibration signal detection device comprises a first threshold, a second threshold, a third threshold, a fourth threshold and a fifth threshold, wherein the vibration signal thresholds respectively correspond to one another as follows: concrete, steel bars, corrugated pipe skin, steel bundles and air media.

Preferably, the first and second electrodes are formed of a metal,

the sensor that the drill bit was bored in the impact is established to the vibration sensor, the vibration sensor is located the end of drill bit is bored in the impact, the vibration sensor connection treater, the treater be used for with the vibration signal conversion that the vibration sensor gathered is the signal of telecommunication to compare signal of telecommunication and vibration signal threshold value.

Preferably, the first and second electrodes are formed of a metal,

the working state of the percussion drill comprises:

when the processor judges the vibration signal received by the sensor to be in a first threshold range according to a vibration signal threshold prestored by the server, the processor sends a normal working instruction to a drill bit of the percussion drill;

when the processor judges the vibration signal received by the sensor to be in a third threshold range according to the vibration signal threshold prestored by the server, the processor prompts the user to find the corrugated pipe and sends a low-speed rotation instruction to a drill bit of the percussion drill;

when the processor judges the vibration signal received by the sensor to be a second threshold value or a fourth threshold value range according to the vibration signal threshold value prestored by the server, the processor sends an emergency stop instruction to a drill bit of the percussion drill;

when the processor judges the vibration signal received by the sensor to be in a fifth threshold range according to the vibration signal threshold prestored by the server, the processor sends a temporary stop work to the drill bit of the percussion drill,

or when the processor judges the vibration signal received by the sensor to be in the fifth threshold range according to the vibration signal threshold prestored in the server, the processor sends out an instruction whether to utilize the video acquisition system to acquire the video information.

Preferably, the first and second electrodes are formed of a metal,

further comprising:

judging whether a concrete pouring layer of the working section has defects or not according to the working state of a drill bit which is used for drilling into the ground from the working surface in the construction section through a percussion drill;

if the defects exist, marking, and combining nondestructive testing equipment to carry out drilling spot check on the detection result of the internal defects of the region to other positions, and forming a verification result of the internal defects of the region, thereby analyzing the structural influence of the defective part on the construction section;

if the defect does not exist, the construction of the next procedure is carried out;

the analyzing of the influence of the defective portion further includes:

if the mechanical analysis of the defect part is unqualified, marking and immediately issuing a reinforcing and repairing instruction; if the defect portion does not affect the mechanical properties of the structure but only the durability, the defect portion is repaired by a repairing mechanism.

Preferably, the first and second electrodes are formed of a metal,

the judging of the defective portion includes:

when the vibration signal threshold values are sequentially as follows: when the first threshold value and the second threshold value are adopted, the drilling position is a steel bar, a steel bar mesh needs to be checked, and the drilling position is adjusted according to the checking result;

when the vibration signal threshold values are sequentially as follows: when the first threshold value, the fifth threshold value and the first threshold value are adopted, the lower part of the working surface corresponding to the construction section is as follows: the construction defect with internal cavities exists; when the vibration signal threshold is sequentially: when the first threshold value, the third threshold value, the first threshold value and the fourth threshold value are adopted, the lower part of the working surface corresponding to the construction section is as follows: a prestressed corrugated pipe with grouting and steel bundles;

when the vibration signal threshold is sequentially: when the first threshold value, the third threshold value, the fifth threshold value and the fourth threshold value are adopted, the lower part of the working surface corresponding to the construction section is as follows: the prestressed corrugated pipe is not full and is provided with steel bundles;

when the vibration signal threshold is sequentially: when the first threshold value, the third threshold value, the first threshold value, the third threshold value and the first threshold value are adopted, the working surface below corresponding to the construction section is as follows: a prestressed corrugated pipe with grouting and without steel bundles; or, the working surface below that the construction section corresponds is: far away from the right upper part of the prestressed corrugated pipe;

when the vibration signal threshold is sequentially: when the first threshold, the third threshold, the fifth threshold, the third threshold and the first threshold are used, the working surface corresponding to the construction section is as follows: the prestressed corrugated pipe has no grouting and steel bundle.

Preferably, the first and second electrodes are formed of a metal,

obtaining an analysis result of a single-point drilling vibration signal according to the drilling process of the percussion drill;

obtaining a three-dimensional cylinder model with the diameter of the drill hole as the diameter and the depth of the drill hole as the height according to the analytic structure of the single-point drill hole vibration signal;

the three-dimensional cylinder model comprises a plurality of cylinder heights, and the cylinder heights are respectively in one-to-one correspondence with different media;

carrying out multiple single-point drilling in a construction area to obtain a multi-point drilling vibration signal analysis result;

obtaining a plurality of cylinder analytic bodies at the drilling positions according to the multipoint drilling vibration signal analytic result;

correcting the detection result of the three-dimensional ultrasonic in the construction area according to the cylindrical analytic bodies at the plurality of drilling positions;

and analyzing the data of the detection results of the cylindrical analytic bodies at the plurality of drilling positions and the three-dimensional ultrasound in the region, and establishing a three-dimensional defect distribution visualization result of the construction region.

Preferably, the first and second electrodes are formed of a metal,

and the working surface corresponding to the construction section is a drilling position.

Preferably, the first and second electrodes are formed of a metal,

the working state of the impact drill is controlled by an impact drill adjusting mechanism, and the impact drill adjusting mechanism is erected on a shell of the impact drill through a fixing frame;

the percussion drill adjusting mechanism includes:

the device comprises a first drill rod, a shell, an L-shaped clamping rod and a second drill rod, wherein one end of the first drill rod is connected with the driving end of a percussion drill, the other end of the first drill rod is provided with an adapter table, one end of the adapter table, which is far away from the first drill rod, is connected with the second drill rod, and the second drill rod is a drill bit end;

a second movable groove is formed in the center of the upper portion of the shell and used for enabling the second drill rod and the connecting platform to penetrate through;

the upper surface of the shell is symmetrically provided with first movable grooves, limiting rods are arranged in the first movable grooves at intervals,

the drill rod drilling tool comprises a shell, a fixed disc, a pressing table, a guide post, a second through hole, a first drill rod and a second drill rod, wherein a cavity is formed in the shell, a first through hole is formed below the shell, the fixed disc is arranged in the cavity of the shell, the pressing table extending upwards is arranged on the upper surface of the fixed disc, the guide post extending downwards is arranged on the lower surface of the fixed disc, the pressing table is provided with the second through hole, the second through hole penetrates from the pressing table to the guide post, and the second through hole;

a first rotating shaft is symmetrically arranged on the fixed disc, a second swing rod is rotatably arranged on the first rotating shaft, one end, far away from the first rotating shaft, of the second swing rod is connected with an L-shaped clamping rod of an L structure, and a first clamping groove is formed in the connecting end of the L-shaped clamping rod and the second swing rod;

the first movable groove is communicated with the cavity of the shell, and the L-shaped clamping rod extends from the cavity of the shell to the outer side of the shell through the first movable groove; a clamping block is arranged at one end, far away from the second swing rod, of the L-shaped clamping rod, a plurality of second clamping grooves are formed in the upper surface of the chuck at intervals, and the second clamping grooves and the clamping block are arranged in a matched mode;

the first clamping groove is matched with a limiting rod arranged in the first movable groove, and the first clamping groove is of a V-shaped structure.

Preferably, the first and second electrodes are formed of a metal,

the shell is also provided with a scrap cleaning mechanism,

clear bits mechanism includes: a second rotating shaft, a top plate, a seventh rotating shaft and a top rod,

the second rotating shaft is arranged on the outer wall of the shell through a fourth fixed seat, one end of the second rotating shaft is connected with the motor, the other end of the second rotating shaft is connected with the first oscillating bar, a fifth rotating shaft is arranged at one end, far away from the second rotating shaft, of the first oscillating bar, the fifth rotating shaft is rotatably connected with a sixth connecting rod, the other end of the sixth connecting rod is rotatably connected onto the sixth rotating shaft, two ends of the sixth rotating shaft are fixed between the two second vertical plates, and one surface of each second vertical plate is fixedly connected to one surface of the top plate;

two third vertical plates are arranged on one side, close to the second vertical plate, of the top plate at intervals, the second vertical plate is fixedly connected with one of the third vertical plates, a movable groove is formed between the third vertical plates, and the movable groove is used for enabling a third turntable to reciprocate in the groove;

a sliding block is arranged on one surface, far away from the third vertical plate, of the top plate, the sliding block is arranged in a matching manner with a first sliding groove arranged on a sliding rail, and one surface, far away from the first sliding groove, of the sliding rail is fixed on the outer wall of the shell;

one surface, far away from the movable groove, of the third rotating disc is rotatably connected with one end of a seventh connecting rod through a sixth rotating shaft, the other end of the seventh connecting rod is connected with the seventh rotating shaft, the seventh rotating shaft is rotatably arranged on a sixth fixed seat, and the sixth fixed seat is erected on the outer wall of the shell;

the seventh rotating shaft is also fixedly connected with a cam, the cam is positioned between the seventh connecting rod and the sixth fixing seat, one side of the cam is provided with a fifth fixing seat at intervals, the fifth fixing seat is fixed on the outer wall of the shell, the fifth fixing seat is provided with a second sliding groove, a connecting block is arranged on the second sliding groove in a sliding manner, one side of the connecting block, which is close to the cam, is provided with two fourth vertical plates at intervals, a rotating wheel is rotatably arranged between the fourth vertical plates through the sixth rotating shaft, and the rotating wheel is in contact with the cam;

an ejector rod is arranged at one end, away from the fourth vertical plate, of the connecting block, a baffle is arranged at one end, close to the ejector rod, of the fifth fixing seat, a through hole for the ejector rod to penetrate through is formed in the baffle, a first spring is sleeved on the ejector rod, one end of the first spring is connected with the connecting block, and the other end of the first spring is connected with the baffle;

the top plate and the ejector rod are respectively connected with a group of plunger mechanisms, and the air outlet ends of the plunger mechanisms are respectively arranged towards the second drill rod through pipelines.

Preferably, the first and second electrodes are formed of a metal,

a first sealing plate and a second sealing plate of the sealing plate mechanism are arranged at one end of the pipeline far away from the plunger mechanism;

the shrouding mechanism includes: the first sealing plate and the second sealing plate are respectively arranged at two ends of a fourth connecting rod, a first rotary disc is arranged on one surface of the fourth connecting rod, which is far away from the first sealing plate and the second sealing plate, and the first rotary disc is positioned at the center of the fourth connecting rod;

one side of the first rotating disc is connected with one end, far away from the cam, of a seventh rotating shaft, the seventh rotating shaft penetrates through and is rotatably arranged on a fixing plate of an L structure, the fixing plate is erected on the outer side wall of the shell, one end, far away from the first rotating disc, of the seventh rotating shaft is provided with a second rotating disc and a third oscillating bar at intervals, one side of the second rotating disc is fixedly provided with a first bent rod of a U-shaped structure, and two ends of the first bent rod are respectively provided with a first touch panel and a fourth touch panel,

two limiting columns are arranged on the fixing plate at intervals, and a movable gap between the limiting columns is used for the third oscillating bar to reciprocate;

an extension plate is arranged below the limiting column, the lower surface of the extension plate is connected with one end of a second spring, the other end of the second spring is connected with one end of a first connecting rod, the other end of the first connecting rod is connected with a second connecting rod through a fourth rotary table, the other end of the second connecting rod is connected with a second bent rod, and a third touch panel and a second touch panel are respectively arranged at two ends of the second bent rod;

the first touch plate and the second touch plate are in contact with or separated from each other, and the third touch plate and the fourth touch plate are in contact with or separated from each other;

and a third rotating shaft is arranged on the fixing plate in an outward extending mode and used for the rotation of a fourth rotating disc.

The working principle and the beneficial effects of the invention are as follows:

the method takes vibration signal identification as a main technical means, collects the vibration of different interfaces of concrete, steel bars, corrugated pipe skin, steel bundles, air and the like after the impact drill drills into the concrete surface, identifies the vibration signal, intelligently controls the work of the impact drill according to the difference of vibration threshold values, continues drilling when the impact drill drills into the concrete and the corrugated pipe skin, and stops when the impact drill drills into the steel bars, the steel bundles and the air; therefore, the situation that whether the hole defect exists or not is judged according to the medium drilled by the impact drill; or the working state of the impact drill is adjusted according to the drilling position, so that the damage of the impact drill to the steel bars and the steel bundles in the drilling position is reduced.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a flow chart of the structure of the present invention;

FIG. 2 is a schematic view of a first drill rod of the present invention;

FIG. 3 is a schematic view of the impact drill adjustment mechanism of the present invention;

FIG. 4 is a schematic view of the fixing frame of the present invention;

FIG. 5 is a schematic structural view of a chip removing mechanism of the present invention;

FIG. 6 is a schematic structural view of a closing plate mechanism of the present invention;

FIG. 7 is a schematic view of the plunger mechanism of the present invention;

wherein, 1-a first drill rod, 2-a concrete pouring layer, 3-a drilling hole, 4-a defective part, 5-a fixture block, 6-an L fixture rod, 7-a chuck, 8-an adapter table, 9-a first clamping groove, 10-a second swing rod, 11-a first rotating shaft, 12-a movable cavity, 13-a shell, 14-a fixed disc, 15-a first through hole, 16-a second drill rod, 17-a second through hole, 18-a guide column, 19-a pressing table, 20-a limiting rod, 21-a first movable groove, 22-a second movable groove and 23-a second clamping groove,

24-a first rotating disc, 25-a first contact plate, 26-a first bent rod, 27-a first sealing plate, 28-a second rotating shaft, 29-a third swinging rod, 31-an extending plate, 32-a second spring, 33-a first connecting rod, 34-a fixing plate, 35-a third rotating shaft, 36-a second connecting rod, 37-a third contact plate and 38-a fourth contact plate,

44-a limit column, 46-a second bent rod, 54-a fourth connecting rod,

39-a fourth fixed seat, 40-a first swing rod, 41-a fifth rotating shaft, 42-a sixth connecting rod, 43-a second vertical plate, 45-a third rotary plate, 47-a third vertical plate, 48-a top plate, 49-a sliding rail, 50-a first sliding groove, 51-a rotating wheel, 52-a fifth fixed seat, 53-a second sliding groove, 55-a top rod, 56-a first spring, 57-a connecting block, 58-a fourth vertical plate, 59-a sixth rotating shaft, 60-a cam, 61-a seventh rotating shaft, 62-a sixth fixed seat, 63-a seventh connecting rod,

64-a second closing plate, 65-a second contact plate, 66-a fixed frame, 67-a plunger mechanism, 68-a pipeline, 69-a second rotating disc and 70-a fourth rotating disc.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

According to the invention, as shown in fig. 1, the invention provides a method for verifying internal defects of concrete by controlling a percussion drill hole 3 based on a vibration signal, which comprises the following steps:

s1, setting a plurality of vibration signal thresholds according to vibration characteristic differences when the percussion drill drills into different media, and pre-storing the thresholds in a server;

The method takes vibration signal identification as a main technical means, collects the vibration of different interfaces of concrete, steel bars, corrugated pipe skin, steel bundles, air and the like after the impact drill drills into the concrete surface, identifies the vibration signal, intelligently controls the work of the impact drill according to the difference of vibration threshold values, continues drilling when the impact drill drills into the concrete and the corrugated pipe skin, and stops when the impact drill drills into the steel bars, the steel bundles and the air; therefore, a plurality of vibration signal thresholds are set according to the vibration characteristic difference of the percussion drill acting on different media and are prestored in the server, the vibration signal thresholds prestored in the server are called, the collected vibration signals are compared with the prestored vibration signal thresholds, the type of the collected vibration signals is determined, and whether the hole defect exists in the position of the drill hole 3 is judged; or the working state of the impact drill is adjusted according to the position of the drill hole 3, so that the damage of the impact drill to the steel bar and the steel bundle in the position of the drill hole 3 is reduced.

In one embodiment of the present invention,

The working principle and the beneficial effects of the embodiment are as follows:

because in the actual work progress, the drill bit can meet multiple medium, promptly: when the impact drill works, the body vibrates, and coupling vibration signals generated by drilling into each medium are different, so that the coupling vibration characteristics of the drill bit into each medium are defined, the division according to the measured vibration signals is realized, the medium encountered by the drill bit is further judged, and the medium at the current working point of the drill bit is determined; and further controlling the working state of the drill bit through the medium.

In one embodiment of the present invention,

the sensor that the drill bit was bored in the impact is established to the vibration sensor, the vibration sensor is located the inside of drill bit is bored in the impact, the vibration sensor connection treater, the treater be used for with the vibration signal conversion that the vibration sensor gathered is the signal of telecommunication to compare signal of telecommunication and vibration signal threshold value.

the drill bit can generate different coupling vibrations when contacting different media in the working process, the vibration sensor is used for collecting the generated coupling vibrations and further transmitting collected vibration signals to the processor, the processor processes the vibration signals to obtain electric signals with vibration information, the electric signals can be compared with prestored vibration signal thresholds, and the type of the media contacted in the working process of the drill bit at present is determined.

The vibration sensor can be detachably arranged on the outer surface of the impact drill bit and can also be embedded in the impact drill bit; the setting mode of the vibration sensor can be selected according to actual requirements;

for example, when the percussion drill bit with high strength is selected, the mounting form that the vibration sensor is embedded in the percussion drill bit can be adopted, so that the reliability of the vibration sensor is improved, and the condition that the vibration sensor shakes per se due to instable mounting is reduced, so that the accuracy of a vibration signal is influenced;

if the percussion drill bit life of selection is shorter, under the general condition of intensity of percussion drill bit promptly, can adopt and utilize high strength bolt and sealed glue to fix with vibration sensor on the percussion drill bit, work as the percussion drill is at the course of the work, it has sealed glue to fill between vibration sensor and the percussion drill bit, sealed glue can offset vibration sensor with produced vibration between the percussion drill bit to reduce the influence that the vibration that produces because of vibration sensor self causes the acquisition signal.

In one embodiment of the present invention,

the working state of the percussion drill comprises:

the impact drill transmits vibration information acquired by a vibration sensor to a processor in the working process, and the processor controls the working state of the drill bit according to each medium after determining the medium contacted with the impact drill, so that the aim that the drill bit can start corresponding working states when meeting different media is fulfilled.

When the processor judges the vibration signal received by the sensor to be in a third threshold range according to the vibration signal threshold prestored by the server, the processor prompts the user to find the corrugated pipe and sends a low-speed rotation instruction to a drill bit of the percussion drill; that is, when the drill bit of the impact drill meets the corrugated pipe skin, the indication is given, if the grouting condition inside the corrugated pipe is detected, the target is found when the drill bit meets the corrugated pipe skin, and in order to not damage the steel bundle inside, the speed is reduced so as to ensure the purpose that the steel bundle inside the corrugated pipe skin is protected.

The video information acquisition of the video acquisition system is to acquire video information or image information by using an endoscope.

In one embodiment, further comprising:

judging whether the concrete pouring layer 2 of the working section has defects or not according to the working state of a drill bit which drills into the ground from the working surface in the construction section through a percussion drill;

if the defects exist, marking, and combining a nondestructive testing device to carry out spot check on the detection result of the internal defects of the area on other positions by drilling holes 3, and forming a verification result of the internal defects of the area, thereby analyzing the structural influence of the defect part 4 on the construction section;

the analyzing of the influence of the defective portion 4 further includes:

if the mechanical analysis of the defect part 4 is unqualified, marking and immediately issuing a reinforcing and repairing instruction; if the defective portion 4 does not affect the structural mechanical properties but only the durability, the defective portion 4 is repaired by a repair mechanism.

The judgment of the defective portion 4 includes:

when the vibration signal threshold values are sequentially as follows: when the first threshold value and the second threshold value are adopted, the position of the drill hole 3 is a steel bar, a steel bar mesh needs to be checked, and the position of the drill hole 3 is adjusted according to the checking result;

when the vibration signal threshold is sequentially: when the first threshold value, the third threshold value, the first threshold value, the third threshold value and the first threshold value are adopted, the working surface below corresponding to the construction section is as follows: a prestressed corrugated pipe with grouting and without steel bundles; or, the working surface below that the construction section corresponds is: far off the right above the pre-stressed corrugated tubing 68;

Obtaining an analysis result of the vibration signal of the single-point drilling hole 3 according to the drilling process of the percussion drill;

obtaining a three-dimensional cylinder model with the diameter of the drill hole 3 as the diameter and the depth of the drill hole 3 as the height according to the analytic structure of the vibration signal of the single-point drill hole 3;

carrying out multiple single-point drilling 3 in the construction area to obtain a vibration signal analysis result of the multi-point drilling 3;

obtaining a plurality of cylindrical analytic bodies at the positions of the drill holes 3 according to the analytic result of the vibration signals of the multipoint drill holes 3;

correcting the detection result of the three-dimensional ultrasonic in the construction area according to the cylindrical analytic bodies at the positions of the plurality of drill holes 3;

and analyzing the data of the detection results of the cylindrical analytic bodies at the positions of the plurality of drill holes 3 and the three-dimensional ultrasound in the region, and establishing a three-dimensional defect distribution visualization result of the construction region.

And the working surface corresponding to the construction section is the position of a drilling hole 3.

the processor determines whether a defect exists below a working surface corresponding to the construction section according to the working state of the drill bit; if the defect exists, the processor starts the repairing mechanism to repair the defect part 4;

in addition, the drill bit records the current construction section according to the drilling condition in the working process, stores the recorded vibration information, and performs data reconstruction on the current working section according to the stored vibration information, so that the drawing of a corresponding construction section 3D model diagram according to the collected vibration information is realized, and the drawn 3D model diagram is displayed on a display screen in real time and is visually checked by a construction worker; during the process of drilling a plurality of drill bits into a plurality of construction sections, summarizing the conditions of the drill holes 3 in the plurality of construction sections to finally form the underground concrete pouring condition of the construction site, and further judging whether the positions of the corresponding steel bundles, the corresponding steel bars and the corresponding prestressed corrugated pipes deviate from the design range according to the underground concrete pouring condition;

if the part deviates from the construction range, marking the part, and further informing the worker whether to rework the part deviating from the construction range;

and if the construction range is not deviated, storing the 3D model diagram of the construction section and marking the completion.

In one embodiment, as shown in figures 1-7,

the working state of the impact drill is controlled by an impact drill adjusting mechanism, and the impact drill adjusting mechanism is erected on a shell of the impact drill through a fixing frame 66;

the percussion drill adjusting mechanism includes:

the device comprises a first drill rod 1, a shell 13, an L-shaped clamping rod 6 and a second drill rod 16, wherein one end of the first drill rod 1 is connected with the driving end of a percussion drill, the other end of the first drill rod 1 is provided with an adapter table 8, one end, far away from the first drill rod 1, of the adapter table 8 is connected with the second drill rod 16, and the second drill rod 16 is a drill bit end;

a second movable groove 22 is formed in the upper center of the outer shell 13, and the second movable groove 22 is used for penetrating the second drill rod 16 and the connecting platform;

the upper surface of the shell 13 is symmetrically provided with first movable grooves 21, limiting rods 20 are arranged in the first movable grooves 21 at intervals,

a cavity is formed in the shell 13, a first through hole 15 is formed below the shell 13, a fixed disc 14 is arranged in the cavity of the shell 13, a pressing platform 19 extending upwards is arranged on the upper surface of the fixed disc 14, a guide post 18 extending downwards is arranged on the lower surface of the fixed disc 14, a second through hole 17 is formed in the pressing platform 19, the second through hole 17 penetrates from the pressing platform 19 to the guide post 18, and the second through hole 17 is used for penetrating through a second drill rod 16;

a first rotating shaft 11 is symmetrically arranged on the fixed disc 14, a second swing rod 10 is rotatably arranged on the first rotating shaft 11, one end, far away from the first rotating shaft 11, of the second swing rod 10 is connected with an L-shaped clamping rod 6 of an L structure, and a first clamping groove 9 is formed in the connecting end of the L-shaped clamping rod 6 and the second swing rod 10;

the first movable groove 21 is communicated with the cavity of the housing 13, and the L-shaped clamping rod 6 extends from the cavity of the housing 13 to the outside of the housing 13 through the first movable groove 21; a clamping block 5 is arranged at one end, far away from the second swing rod 10, of the L-shaped clamping rod 6, a plurality of second clamping grooves 23 are formed in the upper surface of the chuck 7 at intervals, and the second clamping grooves 23 and the clamping block 5 are arranged in a matched mode;

the first clamping groove 9 is matched with a limiting rod 20 arranged in the first movable groove 21, and the first clamping groove 9 is of a V-shaped structure.

the impact drill adjusting mechanism is used for clamping or loosening a drill rod of the impact drill, so that the impact drill can start a corresponding working state according to different working instructions, a linear driver is arranged on the first drill rod 1 far away from the drill rod, and the linear driver is used for moving the first drill rod 1 towards the direction of a drill hole 3;

when a normal working instruction is sent to the impact drill, the linear driver is in a contraction state, and the first drill rod 1 is close to the driving end of the impact drill;

when a low-speed rotation work instruction is sent to the impact drill, the impact drill adjusts the rotating speed of a motor of a driving mechanism, meanwhile, the linear driver is in a contraction state, and the first drill rod 1 is close to the driving end of the impact drill;

when a stop command is given to the percussion drill, the drive end of the linear drive extends towards the first drill rod 1, so that the first drill rod 1 moves towards the housing 13, further carrying the second drill rod 16 downwards;

in the process of judging the threshold value through the vibration signal, if the first threshold value is close to the second threshold value, the fourth threshold value or the fifth threshold value, the vibration signal is different from the vibration signal of which the first threshold value is far from the second threshold value, the fourth threshold value or the fifth threshold value, and a critical difference threshold value interval can be formed, so that after the drill bit reaches the difference threshold value interval, the processor starts the linear driver, and further, the linear driver stretches and retracts and drives the second drill rod 16 to move downwards, so that the second drill rod 16 rotates in the critical difference threshold value interval and cannot reach the second threshold value, the fourth threshold value or the fifth threshold value; thereby reducing the aim of stopping the rotation in time when the steel bar or the steel bundle is close to; the damage of the steel bars or the steel bundles to the drill bit is reduced.

When the percussion drill executes a command of stopping working, after the linear driver is stretched, the linear driver drives the first drill rod 1 to move downwards, the first drill rod 1 drives the chuck 7 to move downwards, and the chuck 7 drives the connecting table to move downwards together; the connecting table passes through the second movable slot 22 of the outer shell 13 and enters the cavity of the outer shell 13 during the movement process; then, as the connecting table gradually enters the cavity of the housing 13, the connecting table contacts the upper surface of the pressing table 19, and drives the pressing table 19 to move downwards, the pressing table 19 drives the fixed disc 14 to move downwards as the connecting table moves downwards, and the fixed disc 14 drives the second swing link 10 to swing when moving downwards, so that the second swing link 10 drives the L-shaped clamping rod 6 to be limited through the first clamping groove 9 arranged between the second swing link 10 and the L-shaped clamping rod 6, and the clamping block 5 arranged on the L-shaped clamping rod 6 can move towards the direction of the clamping disc 7; namely, the second swing link 10 swings towards the axial center line direction of the housing 13, and further drives the fixture block 5 on the L-shaped fixture rod 6 to be clamped into the second clamping groove 23 on the chuck 7, so that the purpose that the first drill rod 1 is limited to rotate is achieved, and the first drill rod 1 is connected with the second drill rod 16 through the connecting table, so that the purpose that the second drill rod 16 is also limited is achieved; the aim that the impact drill can stop rotating in time when receiving the instruction of stopping working can be achieved.

In order to facilitate the goal that the percussion drill can still normally work after finishing the instruction of stopping work, it is preferable that a spring is arranged between the lower surface of the fixed disk 14 and the inner bottom surface of the cavity of the housing 13, and after the linear actuator is pulled up, the spring will bounce the fixed disk 14, so as to achieve the goal that the chuck 7 is no longer limited by the L-shaped clamping rod 6.

A movable cavity 12 is arranged in the shell 13, and the movable cavity 12 is used for the fixed disk 14 to move in the movable cavity 12, so as to drive the L-shaped clamping rod 6 to swing.

In one embodiment, as shown in figures 1-7,

the shell 13 is also provided with a scrap cleaning mechanism,

clear bits mechanism includes: a second rotating shaft 28, a top plate 48, a seventh rotating shaft 61 and a top rod 55,

the second rotating shaft 28 is erected on the outer wall of the housing 13 through a fourth fixing seat 39, one end of the second rotating shaft 28 is connected to a motor, the other end of the second rotating shaft 28 is connected to a first swing rod 40, one end of the first swing rod 40, which is far away from the second rotating shaft 28, is provided with a fifth rotating shaft 41, the fifth rotating shaft 41 is rotatably connected to a sixth connecting rod 42, the other end of the sixth connecting rod 42 is rotatably connected to a sixth rotating shaft 59, two ends of the sixth rotating shaft 59 are fixed between two second vertical plates 43, and one surface of each second vertical plate 43 is fixedly connected to one surface of the top plate 48;

two third vertical plates 47 are arranged on one side, close to the second vertical plate 43, of the top plate 48 at intervals, the second vertical plate 43 is fixedly connected with one of the third vertical plates 47, a movable groove is formed between the third vertical plates 47, and the movable groove is used for the third turntable 45 to reciprocate in the groove;

a sliding block is arranged on one surface, far away from the third vertical plate 47, of the top plate 48, the sliding block is arranged in a matching manner with a first sliding groove 50 arranged on a sliding rail 49, and one surface, far away from the first sliding groove 50, of the sliding rail 49 is fixed on the outer wall of the shell 13;

one surface of the third rotating disc 45, which is far away from the movable groove, is rotatably connected with one end of a seventh connecting rod 63 through a sixth rotating shaft 59, the other end of the seventh connecting rod 63 is connected with a seventh rotating shaft 61, the seventh rotating shaft 61 is rotatably arranged on a sixth fixed seat 62, and the sixth fixed seat 62 is used for being erected on the outer wall of the shell 13;

the seventh rotating shaft 61 is further fixedly connected with a cam 60, the cam 60 is located between the seventh connecting rod 63 and the sixth fixing seat 62, one side of the cam 60 is provided with fifth fixing seats 52 at intervals, the fifth fixing seats 52 are fixed on the outer wall of the housing 13, the fifth fixing seats 52 are provided with second sliding grooves 53, the second sliding grooves 53 are slidably provided with connecting blocks 57, one side of each connecting block 57, which is close to the cam 60, is provided with two fourth vertical plates 58 at intervals, a rotating wheel 51 is rotatably arranged between the fourth vertical plates 58 through the sixth rotating shaft 59, and the rotating wheel 51 is in contact with the cam 60;

an ejector rod 55 is arranged at one end, far away from the fourth vertical plate 58, of the connecting block 57, a baffle is arranged at one end, close to the ejector rod 55, of the fifth fixing seat 52, a through hole for the ejector rod 55 to penetrate through is formed in the baffle, a first spring 56 is sleeved on the ejector rod 55, one end of the first spring 56 is connected with the connecting block 57, and the other end of the first spring 56 is connected with the baffle;

the top plate 48 and the ejector rod 55 are respectively connected with a group of plunger mechanisms 67, and the air outlet ends of the plunger mechanisms 67 are respectively arranged towards the second drill rod 16 through pipelines 68.

the chip cleaning mechanism is used for the purpose that the impact drill can blow out the generated chip foam in the normal working state or the low-speed rotating process to form the drill hole 3, the purpose that the cleanliness of the drill hole 3 in the process is high is achieved, and the situation that the sight of the drill hole 3 is shielded due to excessive internal chip foam is reduced.

When the pneumatic drill bit works, the second rotating shaft 28 is connected with a motor, the motor drives the second rotating shaft 28 to rotate after being started, so that the first swing rod 40 connected with the second rotating shaft 28 swings, the first swing rod 40 swings to drive the sixth connecting rod 42 to swing on the fifth rotating shaft 41, the sixth rotating shaft 59 between the second vertical plates 43 is further pulled to swing, the sliding block of the top plate 48 slides on the first sliding groove 50 of the sliding rail 49, the top plate 48 pulls the plunger rod of the plunger mechanism 67 to move, the plunger rod moves to drive the piston to move in the plunger cylinder, the purpose of inflating the plunger cylinder is further achieved, gas generated by the plunger cylinder is blown into the drill hole 3 through the pipeline 68, the purpose of cleaning chips in the drill hole 3 is achieved, and further waste chips in the drill hole 3 can be timely discharged out of the drill hole 3, the condition that the sight line is shielded or the drilled hole 3 is deviated due to accumulation of scraps in the drilled hole 3 is reduced;

when the top plate 48 moves back and forth, the third rotating disc 45 is further driven to swing through a movable groove formed by the third vertical plate 47, the seventh connecting rod 63 is driven to swing in the process that the third rotating disc 45 swings back and forth, after the seventh connecting rod 63 swings, the seventh rotating shaft 61 connected to the seventh connecting rod 63 rotates on the sixth fixed seat 62, the cam 60 can further swing, and the cam 60 contacts the rotating wheel 51 back and forth in the swinging process, so that the rotating wheel 51 reciprocates in the second sliding groove 53 of the fifth fixed seat 52 through the connecting block 57 connected to the fourth vertical plate 58; the spring sleeved on the connecting block 57 connected with the connecting block 57 can be compressed or bounced along with the rotation of the cam 60, so that the ejector rod 55 is driven to move back and forth, the purpose that the plunger mechanism 67 connected with the ejector rod 55 reciprocates is achieved, and the plunger mechanism 67 connected with the ejector rod 55 and the plunger mechanism 67 connected with the top plate 48 are consistent in working principle;

the purpose that the mechanism pressurizing mechanism can realize the common pressurization of the plurality of plunger mechanisms 67 in the pressurizing process can be realized, so that the efficiency of discharging the scraps out of the drill hole 3 is improved.

In one embodiment, as shown in figures 1-7,

the end of the pipeline 68 far away from the plunger mechanism 67 is provided with a first sealing plate 27 and a second sealing plate 64 of the sealing plate mechanism;

the shrouding mechanism includes: the first sealing plate 27 and the second sealing plate 64 are respectively arranged at two ends of the fourth connecting rod 54, a first rotating disc 24 is arranged on one surface of the fourth connecting rod 54 far away from the first sealing plate 27 and the second sealing plate 64, and the first rotating disc 24 is positioned at the center position of the fourth connecting rod 54;

one surface of the first rotating disc 24 is connected with one end of a seventh rotating shaft 61 far away from the cam 60, the seventh rotating shaft 61 penetrates through and is rotatably arranged on a fixing plate 34 with an L structure, the fixing plate 34 is erected on the outer side wall of the shell 13, one end of the seventh rotating shaft 61 far away from the first rotating disc 24 is provided with a second rotating disc 69 and a third swing rod 29 at intervals, one side of the second rotating disc 69 is fixedly provided with a first bent rod 26 with a U-shaped structure, two ends of the first bent rod 26 are respectively provided with a first touch panel 25 and a fourth touch panel 38,

two limiting columns 44 are arranged on the fixing plate 34 at intervals, and a movable gap between the limiting columns 44 is used for the third oscillating bar 29 to reciprocate;

an extension plate 31 is arranged below the limiting column 44, the lower surface of the extension plate 31 is connected with one end of a second spring 32, the other end of the second spring 32 is connected with one end of a first connecting rod 33, the other end of the first connecting rod 33 is connected with a second connecting rod 36 through a fourth rotating disc 70, the other end of the second connecting rod 36 is connected with a second bent rod 46, and a third touch panel 37 and a second touch panel 65 are respectively arranged at two ends of the second bent rod 46;

the first contact plate 25 and the second contact plate 65 are in contact with or separated from each other, and the third contact plate 37 and the fourth contact plate 38 are in contact with or separated from each other;

the fixed plate 34 is provided with a third rotating shaft 35 extending outwards, and the third rotating shaft 35 is used for rotatably arranging a fourth rotating disc 70.

the depth of the drill hole 3 can be different according to construction requirements; meanwhile, according to the working state of the percussion drill, the amount of generated scraps is different between the working state of low-speed rotation and the normal working state, so that the blowing amount of the drill hole 3 can be switched according to actual needs, during switching, the fixing plate 34 is fixed on the outer side wall of the housing 13, the seventh rotating shaft 61 can rotate together through the scrap cleaning mechanism in the rotating process, so that the rotation of the first rotating disc 24 is realized, and the first rotating disc 24 can drive the fourth connecting rod 54 to swing in the swinging process; during the swinging process, the fourth link 54 will swing together with the second rotating disc 69, the swinging of the second rotating disc 69 will swing together with the first curved bar 26, and the first curved bar 26 will swing together with the first contact plate 25 and the fourth contact plate 38 at both ends to make contact with the second contact plate 65 and the third contact plate 37 on the second curved bar 46, respectively.

When the contact plates at the two ends of the first bending rod 26 and the second bending rod 46 are contacted with each other, the purpose that the first contact plate 25 and the second contact plate 65 are contacted with or separated from each other, and the third contact plate 37 and the fourth contact plate 38 are contacted with or separated from each other is achieved;

when the first contact plate 25 and the second contact plate 65 contact each other and the third contact plate 37 and the fourth contact plate 38 are separated from each other, the first sealing plate 27 seals the air outlet end of the plunger mechanism 67 connected to the top plate 48, and the second sealing plate 64 opens the air outlet end of the plunger mechanism 67 connected to the top rod 55; the purpose of blowing one way is realized, and the purpose of cleaning the scraps in the drill hole 3 by small air quantity can be realized.

When the first contact plate 25 and the second contact plate 65 are separated from each other and the third contact plate 37 and the fourth contact plate 38 are in contact with each other, the first sealing plate 27 opens the air outlet end of the plunger mechanism 67 connected to the top plate 48, and the second sealing plate 64 seals the air outlet end of the plunger mechanism 67 connected to the top rod 55; the purpose of blowing one way is realized, and the purpose of cleaning the scraps in the drill hole 3 by small air quantity can be realized.

When the first contact plate 25 and the second contact plate 65 are in contact with each other and the third contact plate 37 and the fourth contact plate 38 are in contact with each other, the air outlet ends of the pipelines 68 connected with the two plunger mechanisms 67 are both opened, and the chip cleaning capability is strongest at the moment.

The seventh rotating shaft 61 can also be provided with a motor independently, and the motor is driven independently and is not shared with the rotating shaft of the scrap removing mechanism.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method for verifying internal defects of concrete by controlling percussion drill drilling based on vibration signals is characterized by comprising the following steps:

2. The method for verifying internal defects of concrete by controlling percussion drilling based on vibration signals according to claim 1, wherein the vibration signal threshold comprises: the vibration signal detection device comprises a first threshold, a second threshold, a third threshold, a fourth threshold and a fifth threshold, wherein the vibration signal thresholds respectively correspond to one another as follows: concrete, steel bars, corrugated pipe skin, steel bundles and air media.

3. The method for verifying internal defects of concrete by controlling percussion drilling based on vibration signals as claimed in claim 2,

4. The method for verifying the internal defects of the concrete by controlling the drilling of the percussion drill based on the vibration signal as claimed in claim 3, wherein the working state of the percussion drill comprises:

when the processor judges the vibration signal received by the sensor to be in a third threshold range according to the vibration signal threshold prestored by the server, the processor sends a low-speed rotation instruction to the drill bit of the percussion drill;

when the processor judges the vibration signal received by the sensor to be within a fifth threshold range according to the vibration signal threshold prestored by the server, the processor sends a temporary stop work to the drill bit of the percussion drill;

5. The method for verifying internal defects of concrete by controlling percussion drilling based on vibration signals as claimed in claim 1,

if the defect exists, marking; detecting the internal defects of the area by using nondestructive testing equipment, performing drilling spot check on other positions by combining the detection result of the internal defects of the area by using the nondestructive testing equipment, and forming a verification result of the internal defects of the area, thereby analyzing the structural influence of the defect part on the construction section;

the analyzing of the influence of the defective portion further includes:

6. The method for verifying internal defects of concrete by controlling percussion drilling based on vibration signals as claimed in claim 5,

the judging of the defective portion includes:

when the vibration signal threshold values are sequentially as follows: when the first threshold value, the fifth threshold value and the first threshold value are adopted, the lower part of the working surface corresponding to the construction section is as follows: the construction defect with internal cavities exists;

when the vibration signal threshold is sequentially: when the first threshold value, the third threshold value, the first threshold value and the fourth threshold value are adopted, the lower part of the working surface corresponding to the construction section is as follows: a prestressed corrugated pipe with grouting and steel bundles;

7. The method for verifying internal defects of concrete by controlling percussion drilling based on vibration signals as claimed in claim 6,

8. The method for verifying internal defects of concrete by controlling percussion drilling based on vibration signals as claimed in claim 6, wherein the working surface corresponding to the construction section is a drilling position.

9. The method for verifying the internal defects of the concrete by controlling the drilling of the percussion drill based on the vibration signal as claimed in claim 4, wherein the working state of the percussion drill is controlled by a percussion drill adjusting mechanism, and the percussion drill adjusting mechanism is erected on a shell of the percussion drill through a fixing frame;

the percussion drill adjusting mechanism includes:

10. The method for verifying internal defects of concrete by controlling percussion drilling based on vibration signals as claimed in claim 9,

the shell is also provided with a scrap cleaning mechanism,