CN212931329U

CN212931329U - Crack width gauge

Info

Publication number: CN212931329U
Application number: CN202022015299.1U
Authority: CN
Inventors: 迟胜超; 张震远; 王福强; 刘兵; 郭伟; 徐晓庆; 张辉; 肖凤春; 张拥军; 王观群; 王盛
Original assignee: Qingdao Zhongan Zhixin Underground Engineering Consulting Co ltd; Operation Branch Of Qingdao Metro Group Co ltd
Current assignee: Qingdao Metro Operation Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-04-09
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a crack width gage relates to detecting instrument technical field. The crack width gauge comprises a width gauge body, a microscopic detection probe, a telescopic rod and a connecting assembly arranged at the end part of the telescopic rod; the connecting assembly comprises a bearing plate, a clamping seat arranged on the bearing plate and a spring piece arranged on the clamping seat; one side of the bearing plate is fixedly connected with the end part of the telescopic rod, the interior of the clamping seat is of a hollow structure, the clamping seat is provided with an insertion hole, and one side of the insertion hole is connected with a spring piece; the tail part of the microscopic detection probe is provided with a hook, and the hook is used for inserting the microscopic detection probe into the card seat insertion hole. The utility model, by arranging the telescopic rod, the telescopic rod can be adjusted to a proper length to detect the width of the crack according to the crack positions in different environments, and is simple and convenient; through the cooperation of cassette and spring leaf, make things convenient for micro-detection probe and telescopic link to be connected, convenient to use has improved detection efficiency.

Description

Crack width gauge

Technical Field

The utility model relates to a detecting instrument technical field, concretely relates to crack width measuring instrument.

Background

The crack width measuring instrument is a special instrument for detecting crack width and surface micro-defects in a concrete structure. When the crack width gauge is used, the display screen and the microscopic detection probe are connected through a cable or wifi, a power switch is turned on, two support legs of the microscopic detection probe are placed on a crack, an amplified crack image can be seen on the display screen, a camera on the microscopic detection probe is slightly rotated, the crack image is perpendicular to the graduated scale, and a crack width value is read according to the length of a graduated line occupied by the crack image.

At present, crack width measuring appearance is at the testing process, and the staff generally holds the micro-detection probe and detects crack position, however, to some special cracks in distance position, if: cracks on the side face of the bridge, cracks on the vault of the tunnel and the like, and the detection is difficult due to inconvenient operation of workers. How to solve the technical problems is a technical problem to be solved in the technical field of the current detection instrument.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the embodiment of the utility model provides a crack width gage is provided to solve the problem that proposes in the above-mentioned background art.

The utility model provides a following technical scheme: a crack width gauge comprises a width gauge body, a microscopic detection probe, a telescopic rod and a connecting assembly arranged at the end part of the telescopic rod; the connecting assembly comprises a bearing plate, a clamping seat arranged on the bearing plate and a spring piece arranged on the clamping seat; one side of the bearing plate is fixedly connected with the end part of the telescopic rod, the interior of the clamping seat is of a hollow structure, the clamping seat is provided with an insertion hole, and one side of the insertion hole is connected with a spring piece; the tail part of the microscopic detection probe is provided with a hook, and the hook is used for inserting the microscopic detection probe into the card seat insertion hole.

Preferably, the telescopic link includes handle, first slide bar, second slide bar and third slide bar, handle, first slide bar, second slide bar and third slide bar are hollow structure, and cup joint in proper order.

Preferably, the bearing plate in the connecting assembly is fixedly connected with the third sliding rod in the telescopic rod through a first bolt and a first nut.

Preferably, the four corner positions of the clamping seat and the bearing plate are fixedly connected through a second bolt and a second nut respectively.

Preferably, the microscopic detection probe and the hook are fixedly connected through a third bolt and a third nut.

Preferably, the outer surface of the connecting component is coated with a polyurethane anticorrosive material.

The embodiment of the utility model provides a pair of crack width gage has following beneficial effect: the utility model, by arranging the telescopic rod, the telescopic rod can be adjusted to a proper length to detect the width of the crack according to the crack positions in different environments, and is simple and convenient; the microscopic detection probe is conveniently connected with the telescopic rod through the matching of the clamping seat and the spring piece, the use is convenient, and the detection efficiency is improved; when the width gauge is not used, the microscopic detection probe can be pulled out of the clamping seat, and the extension rod can be retracted, so that the instrument can be conveniently stored, and the storage space is saved.

Drawings

FIG. 1 is a front view of the crack width gauge of the present invention;

FIG. 2 is a schematic view of a partial section structure of the crack width gauge of the present invention;

FIG. 3 is a top view of the crack width gauge of the present invention;

FIG. 4 is a schematic view of the structure of the micro-detection probe of the present invention;

FIG. 5 is a bottom view of the middle microscopic inspection probe of the present invention;

fig. 6 is a schematic view of the structure of the middle clamping seat of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, fig. 1 is a front view of the crack width gauge of the present invention; FIG. 2 is a schematic view of a partial section structure of the crack width gauge of the present invention; FIG. 3 is a top view of the crack width gauge of the present invention; FIG. 4 is a schematic view of the structure of the micro-detection probe of the present invention; FIG. 5 is a bottom view of the middle microscopic inspection probe of the present invention; fig. 6 is a schematic view of the structure of the middle clamping seat of the present invention.

A crack width gauge comprises a width gauge body, a microscopic detection probe 14, a telescopic rod and a connecting assembly arranged at the end part of the telescopic rod; the connecting assembly comprises a bearing plate 4, a clamping seat 5 arranged on the bearing plate 4 and a spring piece 8 arranged on the clamping seat 5; one side of the bearing plate 4 is fixedly connected with the end part of the telescopic rod, the interior of the clamping seat 5 is of a hollow structure, an insertion hole 5a is formed in the clamping seat 5, and one side of the insertion hole 5a is connected with a spring piece 8; the tail part of the microscopic detection probe 14 is provided with a hook 13, and the hook 13 is used for inserting the microscopic detection probe 14 into the insertion hole 5a of the card holder 5.

The spring piece 8 is connected to one side of the insertion hole 5a, and preferably, the spring piece 8 is in contact with the wall of the insertion hole 5a, so that the effect of pressing the hook 13 by the spring piece 8 is firmer.

Further, the telescopic link includes handle 1, first slide bar 2a, second slide bar 2b and third slide bar 2c, handle 1, first slide bar 2a, second slide bar 2b and third slide bar 2c are hollow structure, and cup joint in proper order.

Further, the bearing plate 4 in the connecting assembly is fixedly connected with the third sliding rod 2c in the telescopic rod through a first bolt 9 and a first nut 10; the bearing plate 4 and the third sliding rod 2c are respectively provided with coaxial through holes, and a first bolt 9 is inserted into the through holes and fixed through a first nut 10.

Furthermore, the four corner positions of the clamping seat 5 and the bearing plate 4 are respectively fixedly connected through a second bolt 7 and a second nut 6; the clamping seat 5 and the bearing plate 4 are provided with coaxial fixing through holes at four corner positions respectively, and a second bolt 7 is inserted into the fixing through holes and fixed through a second nut 6.

Further, the microscopic detection probe 14 and the hook 13 are fixedly connected through a third bolt 12 and a third nut 11; the tail of the microscopic detection probe 14 is connected with a fixed seat, the fixed seat and the hook 13 are respectively provided with a switching hole, and a third bolt 12 is inserted into the switching hole and fixed through a third nut 11.

Further, coupling assembling surface scribbles polyurethane anticorrosive material, covers coupling assembling through polyurethane anticorrosive material, can effectually avoid coupling assembling and corrosive liquid contact and corrode equipment.

The utility model relates to a crack width gauge working method as follows:

(1) during detection, the hook 13 at the tail of the microscopic detection probe 14 is inserted into the insertion hole 5a of the card holder 5, and the spring piece 8 presses the hook 13 to prevent the microscopic detection probe 14 from shaking and loosening;

(2) according to the specific crack position, pulling out the telescopic rod to adjust the length to a proper length;

(3) and adjusting a third bolt 12 and a third nut 11 between the micro-detection probe 14 and the hook 13 to a proper angle, so that the support leg of the lens on the micro-detection probe 14 can be placed on the crack, adjusting the position to enable the crack to be in the middle of the screen, and recording the width value of the crack.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounting," "setting," "connecting," "fixing," "screwing" and the like are to be construed broadly, for example, as being either fixedly connected or detachably connected or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept, and all such alterations and modifications shall fall within the scope of the appended claims.

Claims

1. The utility model provides a crack width gauge, includes the width gauge body, characterized by: the device also comprises a microscopic detection probe (14), a telescopic rod and a connecting component arranged at the end part of the telescopic rod; the connecting assembly comprises a bearing plate (4), a clamping seat (5) arranged on the bearing plate (4), and a spring piece (8) arranged on the clamping seat (5); one side of the bearing plate (4) is fixedly connected with the end part of the telescopic rod, the interior of the clamping seat (5) is of a hollow structure, a jack (5a) is formed in the clamping seat (5), and one side of the jack (5a) is connected with a spring piece (8); the tail of the microscopic detection probe (14) is provided with a hook (13), and the hook (13) is used for inserting the microscopic detection probe (14) into the insertion hole (5a) of the card holder (5).

2. A crack width gauge as claimed in claim 1, wherein: the telescopic link includes handle (1), first slide bar (2a), second slide bar (2b) and third slide bar (2c), handle (1), first slide bar (2a), second slide bar (2b) and third slide bar (2c) are hollow structure, and cup joint in proper order.

3. A crack width gauge as claimed in claim 2, wherein: the bearing plate (4) in the connecting assembly is fixedly connected with the third sliding rod (2c) in the telescopic rod through a first bolt (9) and a first nut (10).

4. A crack width gauge as claimed in claim 1, wherein: the four corner positions of the clamping seat (5) and the bearing plate (4) are fixedly connected through a second bolt (7) and a second nut (6) respectively.

5. A crack width gauge as claimed in claim 1, wherein: the microscopic detection probe (14) is fixedly connected with the hook (13) through a third bolt (12) and a third nut (11).

6. A crack width gauge as claimed in claim 1, wherein: the outer surface of the connecting component is coated with a polyurethane anticorrosive material.