CN111141679A

CN111141679A - Concrete crack detection device

Info

Publication number: CN111141679A
Application number: CN202010121296.8A
Authority: CN
Inventors: 王文圣; 孙胜阳; 文武; 尹大祥; 冷向东; 张跃
Original assignee: TRANSTECH ENGINEERING CORP
Current assignee: TRANSTECH ENGINEERING CORP
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-05-12
Anticipated expiration: 2040-02-26
Also published as: CN111141679B

Abstract

A concrete crack detection device comprises a back frame, a detector, a connecting rod and a probe, wherein the detector is connected with the probe through a transmission line, the detector is fixed on the back frame, a power supply is also arranged on the back frame and is connected with the detector, two straps convenient for people to bear are arranged on the back frame, the probe is arranged at one end of the connecting rod and is in spherical hinge joint with one end of the connecting rod, the connecting rod is divided into an outer tube and an inner tube, the outer tube and the inner tube are mutually sleeved, the probe is arranged at the top end of the inner tube, the bottom of the outer tube is arranged on a handheld handle, a positioning device for limiting the relative position of the inner tube and the outer tube is arranged between the inner tube and the outer tube, the whole detection instrument can be directly borne on the back, then the connecting rod can be directly held for crack detection, the length of the connecting rod can be, the crack detector can detect most cracks by directly standing on the ground, and is convenient to operate and ideal in effect.

Description

Concrete crack detection device

Technical Field

The invention relates to the technical field of detection equipment, in particular to a concrete crack detection device.

Background

At present, the total amount of engineering safety accidents is high, the occurrence of cracks in concrete is a main damage of a structure, and the development of the cracks leads to the reduction of the structural rigidity and the increase of brittleness, so that the service performance of the structure is reduced. On the other hand, the aging effect of the environment on the structure is accelerated, the surface protection layer is peeled off, and the durability of the structure is influenced. The concrete crack detection device is mainly adopted in the current engineering field for detecting the concrete structure crack, and can identify, extract and calculate the width of the crack and accurately obtain the position of the crack.

The traditional concrete crack detection device is portable, but the whole set of equipment needs to be carried by hands, the effect is not ideal, and if the position is higher, the detection can be realized only by climbing to a closer position by means of a tool, and in addition, the adjusting structures of the existing portable monitoring probes need to be provided with independent adjusting mechanisms, and when detecting the concrete target area at a high place, a stable imaging stage between a section needs to be continued, then the area switching is carried out, in the process, the probe rod is required to keep the lens stable, the proper steering in the gap is adjusted, the lens is required to be adjusted in a pitching mode, the traditional method of adjusting the pitching angle of the lens by utilizing the pull rope is required to be provided with a separate locking mechanism, this is independent with the body length locking mechanical system of original telescopic link, and two locking mechanical systems can increase equipment manufacturing cost and the loaded down with trivial details in the operation, and the fixed of probe also need set up extra suspended structure.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the concrete crack detection device which is compact in structure and convenient to operate.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a concrete crack detection device comprises a back frame, a detector, a connecting rod and a probe, wherein the detector is connected with the probe through a transmission line, the detector is fixed on the back frame, a power supply is further arranged on the back frame and is connected with the detector, two straps convenient for people to carry on the back are arranged on the back frame, the probe is arranged at one end of the connecting rod, the probe is hinged with one end of the connecting rod in a spherical mode, the connecting rod is divided into an outer pipe and an inner pipe, the outer pipe and the inner pipe are sleeved with each other, the probe is arranged at the top end of the inner pipe, the bottom of the outer pipe is arranged on a handheld handle, and a positioning device for limiting the relative position of the inner pipe and the outer pipe is arranged;

be provided with axial fluting on the outer tube, be provided with the constant head tank of a plurality of circumference along this fluting cell body axial extending direction bilateral symmetry, be provided with two segmentations on the inner tube and carry the handle, wherein carry the extension of staggering relatively between two sections of handle, carry the handle and pass the outer tube through the fluting, constant head tank and handle surface looks adaptation, the constant head tank slope sets up, and the incline direction is towards handheld handle, is provided with the orientation on this handle and keeps away from grooved sucking disc, still includes along fluting cell body extending direction to set up by two parallel act as go-between, should act as go-between and lie in the both sides of carrying the handle respectively, act as go-between and run through the constant head tank notch of every side in proper order and be connected to the bottom of an elastic rope body, the top of this.

In order to facilitate the on-off of the power supply, the invention has the improvement that a switch for controlling the on-off of the circuit is arranged between the power supply and the detector, and the switch is arranged on the back strap.

In order to conveniently control the length of the connecting pipe, the improved structure of the invention is characterized in that the outer pipe is provided with an axial slot, the axial slot is provided with a circumferential positioning groove, the inner pipe is provided with a lifting handle, the lifting handle penetrates through the outer pipe through the slot, and the positioning groove is matched with the surface of the lifting handle.

In order to increase the friction force of holding by the hand, the invention has the improvement that the hand-holding handle and the lifting handle are both provided with anti-skid grains.

In order to strengthen the fixation of the outer pipe and the inner pipe, the invention is improved in that the lifting handle comprises a fixed rod and a rotating sleeve, the outer surface of the fixed rod is provided with an external thread, the rotating sleeve is sleeved on the fixed rod, the inner side of the rotating sleeve is provided with an internal thread, the rotating sleeve and the fixed rod are fixed through the matching of the internal thread and the external thread, and the outer surface of the rotating sleeve is provided with an annular groove.

In order to facilitate clamping and fixing, the invention is improved in that the positioning groove is obliquely arranged, and the oblique direction faces the hand-held handle.

(III) advantageous effects

Compared with the prior art, the invention provides a concrete crack detection device, which has the following beneficial effects: 1. according to the invention, the multiple degrees of freedom of the pitching angle and the height/rotation angle of the lens are rapidly adjusted, namely, adjusted and switched through the double rows of inclined leak holes and the sectional type lifting handle; 2. the detection device provided by the invention can directly bear the whole detection instrument on the back, then can detect cracks by directly holding the connecting rod, can adjust the length of the connecting rod according to the position, does not need to move up and down by means of a tool, can detect most cracks by directly standing on the ground, and is convenient to operate and ideal in effect.

Drawings

FIG. 1 is a schematic structural diagram of a concrete crack detection device according to the present invention;

fig. 2 is a partially enlarged view of the concrete crack detecting apparatus of the present invention.

In the figure: 1-a back frame; 2-a detector; 3-a probe; 4-a transmission line; 5-carrying the strap; 6-outer tube; 7-inner tube; 8-spherical hinge joint; 9-slotting; 10-positioning grooves; 11-a fixing bar; 12-rotating sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached

drawings

1 and 2, the invention provides a concrete crack detection device, which comprises a back frame 1, a detector 2, a connecting rod and a probe 3, wherein the detector is connected with the probe 3 through a transmission line 4, the detector is fixed on the back frame 1, a power supply is also arranged on the back frame 1 and is connected with the detector, two straps 5 convenient for a person to bear are arranged on the back frame 1, the probe 3 is arranged at one end of the connecting rod, the probe 3 and one end of the connecting rod are in spherical hinge joint 8, the connecting rod is divided into an outer tube 6 and an inner tube 7, the outer tube 6 and the inner tube 7 are mutually sleeved, the probe 3 is arranged at the top end of the inner tube 7, the bottom of the outer tube 6 is arranged on a handheld handle, and a positioning device for limiting the relative position of the inner tube 7 and the outer tube 6 is arranged between the;

the outer tube 6 is provided with an axial slot 9, a plurality of circumferential positioning grooves 10 are symmetrically arranged on two sides of the axial extending direction of the slot 9, the inner tube 7 is provided with a two-section type lifting handle, two sections of the lifting handle can be staggered and extended relatively, the lifting handle penetrates through the outer tube 6 through the slot 9, the positioning grooves 10 are matched with the surface of the lifting handle, the positioning grooves 10 are arranged in an inclined mode, the inclined direction faces towards the handheld handle, a sucking disc facing away from the slot 9 is arranged on the lifting handle, the lifting handle further comprises two parallel pull wires arranged in the extending direction of the slot 9, the pull wires are respectively arranged on two sides of the lifting handle, the pull wires sequentially penetrate through the notches of the positioning grooves 10 on each side and then are connected to the bottom end of an elastic rope body, and the top end of the elastic rope body is connected to the shell.

A switch for controlling the on-off of the circuit is arranged between the power supply and the detector, and the switch is arranged on the strap 5.

The handheld handle and the lifting handle are both provided with anti-skid lines.

The handle comprises a fixed rod 11 and a rotating sleeve 12, wherein an external thread is arranged on the outer surface of the fixed rod 11, the rotating sleeve 12 is sleeved on the fixed rod 11, an internal thread is arranged on the inner side of the rotating sleeve 12, the rotating sleeve 12 is fixed with the fixed rod 11 through the matching of the internal thread and the external thread, and an annular groove is formed in the outer surface of the rotating sleeve 12.

The concrete crack detection device of novel structure during the use, at first bears whole back of the body frame 1, is provided with the switch of control circuit break-make between power and the detector, and the switch can set up on braces 5, directly just can control the break-make of power on braces 5, convenient and fast.

After the switch on, handheld connecting rod removes the place that needs were surveyed with probe 3, because spherical articulated 8 portions can let probe 3 round circular rotation, consequently can the different detection position of adaptation, through mutually supporting of inner tube 7 and outer tube 6, can stretch out and draw back the connecting rod simultaneously, does not need frequent building of climbing of operating personnel, and the convenience is detected the concrete crack.

In this embodiment, the outer tube 6 is provided with an axial slot 9, the axial slot 9 is provided with a circumferential positioning groove 10, the inner tube 7 is provided with a lifting handle, the lifting handle penetrates through the outer tube 6 through the slot 9, and the positioning groove 10 is matched with the surface of the lifting handle.

When the position relation between the inner tube 7 and the outer tube 6 needs to be adjusted, the lifting handle is held, firstly moved to the slot 9 and clamped into the corresponding positioning slot 10, and the position of the probe 3 can be adjusted according to the position difference of the positioning slot 10.

The handheld handle and the lifting handle are provided with anti-skidding lines, so that the handheld friction force is improved, and the operation of equipment is facilitated.

In the implementation, when the height adjustment is required, the position relation between the inner tube 7 and the outer tube 6 is adjusted, and the lifting handle is held; firstly, the handle is moved to the groove 9 and clamped into the corresponding notch of the positioning groove 10, the height position of the probe 3 can be adjusted according to the position difference of the positioning groove 10, in the process of moving the handle to the groove 9 and clamping into the corresponding notch of the positioning groove 10, the handle is selected to move towards the left positioning groove 10 or towards the right positioning groove 10 according to the rotation steering requirement of the lens, if the pitching adjustment of the lens is required, the rotating sleeve 12 is rotated, the rotating sleeve 12 can move up and down along the axial position of the fixed rod 11 and supports against the outer tube 6 when moving the bottom end, the annular groove on the rotating sleeve 12 is articulated with the pull wire in the process, so that the pull wire is bent and moves towards the bottom end of the positioning groove 10 to deform, and therefore, the elastic rope body connected to the shell of the lens 3 is driven to deform and stretch so as to drive the pitching angle of the lens, in addition, the further lifting of the abutment outer tube 6 promotes the fixation between the inner tube 7 and the outer tube 6, and in the above-mentioned various adjustment modes, if only the telescopic height needs to be adjusted, the lifting handle can simply be snapped into the corresponding notch of the positioning slot 10 on the selected side without penetrating into the bottom of the positioning slot 10. In addition, for those skilled in the art, the handle can be designed in other two-stage manner, for example, two telescopic stages can be embedded and sleeved with each other, so that the handle can be simply clamped into the corresponding notch of the positioning groove 10 on the selected side to be tested, and the subsequent control of the two stages to move and separate from each other to drive and stretch the pull wire, thereby realizing independent operations of pitch angle adjustment, lifting action and rotation steering.

The probe 3 and the detector in this embodiment are conventional probes 3 in the prior art, and the structure of the probe and the detector is not described in detail.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A concrete crack detection device is characterized by comprising a back frame (1), a detector (2), a connecting rod and a probe (3), the detector is connected with the probe (3) through a transmission line (4), the detector is fixed on the back frame (1), the back frame (1) is also provided with a power supply which is connected with the detector, the back frame (1) is provided with two braces (5) which are convenient for people to carry on the back, the probe (3) is arranged at one end of the connecting rod, the probe (3) is hinged with one end of the connecting rod in a spherical way (8), the connecting rod is divided into an outer tube (6) and an inner tube (7), the outer tube (6) and the inner tube (7) are mutually sleeved, the probe (3) is arranged at the top end of the inner tube (7), the bottom of the outer tube (6) is arranged on a handheld handle, a positioning device for limiting the relative position of the inner pipe (7) and the outer pipe (6) is arranged between the inner pipe (7) and the outer pipe (6);

the outer pipe (6) is provided with an axial slot (9), a plurality of circumferential positioning slots (10) are symmetrically arranged at two sides along the axial extension direction of the slot body of the slot (9), the inner pipe (7) is provided with a two-section type lifting handle, wherein the two sections of the lifting handle can be staggered and extended relatively, the lifting handle passes through the outer tube (6) through the slot (9), the positioning groove (10) is matched with the surface of the lifting handle, the positioning groove (10) is obliquely arranged, the oblique direction faces to the handheld handle, the lifting handle is provided with a sucker facing away from the slot (9), and also comprises two parallel pull wires arranged along the extending direction of the slot body of the slot (9), the pull wires are respectively positioned at two sides of the lifting handle, the pull wires sequentially penetrate through the notches of the positioning grooves (10) at each side and then are connected to the bottom end of an elastic rope body, and the top end of the elastic rope body is connected to the shell of the probe (3).

2. The concrete crack detection device of claim 1, wherein: a switch for controlling the on-off of the circuit is arranged between the power supply and the detector, and the switch is arranged on the strap (5).

3. The concrete crack detection device of claim 2, wherein: the handheld handle and the lifting handle are both provided with anti-skid lines.

4. A concrete crack detection device as claimed in claim 3, characterized in that: the handle comprises a fixed rod (11) and a rotating sleeve (12), wherein an external thread is arranged on the outer surface of the fixed rod (11), the rotating sleeve (12) is sleeved on the fixed rod (11), an internal thread is arranged on the inner side of the rotating sleeve (12), the rotating sleeve (12) is fixed with the fixed rod (11) through the matching of the internal thread and the external thread, and an annular groove is formed in the outer surface of the rotating sleeve (12).