CN216432829U

CN216432829U - Measuring device for flatness of end face of concrete core sample test piece

Info

Publication number: CN216432829U
Application number: CN202122388950.4U
Authority: CN
Inventors: 雷珺; 刘士清
Original assignee: Hubei Construction Engineering Quality Supervision Inspection And Testing Center Co ltd; Hubei Academy Of Architectural Sciences And Design Co ltd
Current assignee: Hubei Construction Engineering Quality Supervision Inspection And Testing Center Co ltd; Hubei Academy Of Architectural Sciences And Design Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-05-03
Anticipated expiration: 2031-09-29

Abstract

The utility model relates to a building detection equipment technical field provides a measuring device of concrete core appearance test piece terminal surface roughness, include the host computer base, be used for the digital display percentage table of roughness measurement and be used for erectting the support of digital display percentage table, it waits to test the piece and shelves and can drive to have the confession on the host computer base wait to test the piece and remove the displacement subassembly in order to change the position of its terminal surface, the digital display percentage table passes through the support hangs to be located the top of host computer base is just right wait to test the terminal surface of piece. The utility model discloses a measuring device of concrete core appearance test piece terminal surface roughness, easy operation measures the accuracy, avoids the error of manual measurement production.

Description

Measuring device for flatness of end face of concrete core sample test piece

Technical Field

The utility model relates to a building detection equipment technical field specifically is a measuring device of concrete core appearance test piece terminal surface roughness.

Background

The quality of concrete is good, and the compressive strength is the most important evaluation index. The detection method for detecting the concrete strength on site is various, wherein a core drilling method is the method which can most directly reflect the concrete entity quality, and the test value of a standard core sample test piece with the diameter of 100mm can most represent the concrete compressive strength.

Because the core sample is cut by hand, certain error can exist in the flatness of both ends, and the unevenness of the end surface can reduce the strength, and the stress concentration caused by the upward protrusion is larger than that caused by the downward recess, so that the influence is larger. In order to enable the processed core sample test piece to truly reflect the quality of the concrete member, the flatness of the end face of the standard core sample test piece is not more than 0.1mm within the length of 100mm according to the current specification.

In the actual process, the method for measuring the flatness of the core sample test piece by a detector is to use a steel plate ruler or an angle ruler to abut against the end face of the core sample, rotate the steel plate ruler and use a feeler gauge to measure the gap between the feeler gauge and the end face of the core sample. The biggest problem of the measurement method is that the measurement method is easy to generate errors due to manual operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a measuring device of concrete core appearance test piece terminal surface roughness can solve the partial defect among the prior art at least.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the measuring device for the flatness of the end face of the concrete core sample test piece comprises a host base, a digital display dial indicator used for flatness measurement and a support used for erecting the digital display dial indicator, wherein a displacement assembly used for placing a test piece to be tested and driving the test piece to be tested to move so as to change the position of the end face of the test piece is arranged on the host base, and the digital display dial indicator is suspended above the host base through the support and is opposite to the end face of the test piece to be tested.

Furthermore, the displacement assembly comprises a rotary table arranged on the base of the host machine and a measuring container used for containing the piece to be tested, the measuring container rotates through the rotary table, the rotary table and the placing surface of the measuring container used for placing the piece to be tested are both horizontally arranged, and the digital display dial indicator is perpendicular to the rotary table.

Furthermore, the wall of the measuring container is provided with a positioning mark.

Furthermore, the measuring container is fixed with the rotary table through a clamping groove on the bottom cover of the measuring container.

Further, the bottom of the measuring container has a dial.

Further, the support is including installing fixing base on the host computer base, vertical locating dead lever on the fixing base and confession the measurement guide arm of digital display percentage table installation, it can extend to measure the guide arm the top of host computer base.

Further, the measuring guide rod is hinged with the fixing rod.

Furthermore, the measuring guide rod is connected with a clamping rod, and the digital display dial indicator is clamped and fixed through the clamping rod.

Furthermore, the clamping rod is telescopically arranged on the measuring guide rod, and the sum of the lengths of the clamping rod and the measuring guide rod is variable.

Furthermore, a level gauge is installed on the measuring guide rod.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a measuring device of concrete core appearance test piece terminal surface roughness, easy operation measures accurately, avoids the error that manual measurement produced.

Drawings

Fig. 1 to 9 are side views (with digital display dial indicators) of a device for measuring the flatness of an end face of a concrete core sample specimen provided by an embodiment of the present invention;

fig. 2 is a rear view (with digital display dial indicator) of a device for measuring the flatness of an end face of a concrete core sample specimen provided by an embodiment of the present invention;

fig. 3 is a perspective view (without a digital display dial indicator) of a device for measuring the flatness of an end face of a concrete core sample specimen provided by an embodiment of the present invention;

fig. 4 is a top view (with digital display dial indicator) of a device for measuring the flatness of an end face of a concrete core sample specimen provided by an embodiment of the present invention;

fig. 5 is a perspective view of a measuring container of the measuring device for the flatness of the end face of the concrete core sample specimen provided by the embodiment of the utility model;

fig. 6 is a top view of a measuring container of a measuring device for flatness of an end face of a concrete core sample specimen provided by an embodiment of the present invention;

fig. 7 is a bottom view of a measuring container of the measuring device for the flatness of the end face of the concrete core sample specimen provided by the embodiment of the utility model;

fig. 8 is a side view of a measuring container of a measuring device for flatness of an end face of a concrete core sample specimen provided by an embodiment of the present invention;

fig. 9 is a schematic view of a digital display dial indicator of a device for measuring the flatness of an end face of a concrete core sample specimen provided by an embodiment of the present invention;

in the reference symbols: 1-a host base, 2-a fixed base, 3-a fixed rod, 4-a rotary table, 5-an operating key, 6-a measuring guide rod, 7-a level meter, 8-a clamping rod, 9-a bolt, 10-a clamping sleeve, 11-a fastening screw, 12-a digital display dial indicator, 12.1-a measuring rod, 12.2-a measuring head, 12.3-an LED display screen, 13-a measuring container, 14-a clamping groove, 15-a positioning mark and 16-a plug.

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 of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1 to 9, an embodiment of the present invention provides a device for measuring the flatness of the end face of a concrete core sample test piece, which includes a host base 1, a digital display dial indicator 12 for flatness measurement and a support for erecting the digital display dial indicator 12, the host base 1 is provided with a displacement assembly for placing a test piece to be tested and driving the test piece to be tested to move to change the position of the end face of the test piece, and the digital display dial indicator 12 is suspended above the host base 1 through the support and is opposite to the end face of the test piece to be tested. In this embodiment, constitute the structure of installing and treat test piece and digital display percentage table 12 through host computer base 1 and support, can enough settle the test piece that awaits measuring, can fix digital display percentage table 12 again, for detecting provide good detection ring border, change the position of the terminal surface of treating the test piece through the displacement subassembly moreover, can ensure the comprehensive nature that detects, improved the detection precision. The whole structure is simple, the realization is easy, the operation is very simple, and the detection efficiency can be improved. The digital display dial indicator 12 is shown in fig. 9 and comprises a measuring rod 12.1, a measuring head 12.2 and an LED display screen 12.3, when the measuring rod 12.1 is pressed down in use, the measuring head 12.2 extends to the end face of the piece to be tested to detect the end face of the piece to be tested, the digital display dial indicator 12 is an existing component, and the specific working principle of the digital display dial indicator is not detailed again.

As an optimization scheme of the embodiment of the utility model, please refer to fig. 1 to 9, the displacement subassembly is including locating carousel 4 on the host computer base 1 and being used for holding the measurement container 13 of waiting to test the piece, measurement container 13 passes through carousel 4 rotates, carousel 4 with measurement container 13 is used for shelving the equal level setting of the face of shelving of waiting to test the piece, digital display percentage table 12 is perpendicular to carousel 4. In this embodiment, the test piece is generally a cylinder, so the test container can be also configured as a cylinder, which facilitates the insertion of the test piece. And establish carousel 4 on the base, can rotate the test container on it as required, and then drive the examination spare that awaits measuring in the test container and rotate, when so showing percentage table 12 and exploring to the detection terminal surface, just can detect the different positions of terminal surface to comprehensive detection data. Of course, besides the form of driving by the rotating disc 4, it is also possible to use other existing forms, such as a linear module, to drive the measuring container 13 to change the position, and the embodiment is not limited to this. Preferably, the host base 1 is connected with a plug 16, which can supply power to the motor of the turntable 4, and the host base 1 can be further provided with an operation key 5 for controlling the turntable 4 to rotate, of course, an internal circuit of the operation key 5 is connected with the motor, and the rotation of the motor is controlled to control the rotation of the turntable 4.

To further optimize the above technical solution, please refer to fig. 5 and 8, the wall of the measuring container 13 is provided with a positioning mark 15. In the present embodiment, the angle of rotation of the turntable 4 can be known by setting the positioning mark 15.

As an optimized solution of the embodiment of the present invention, please refer to fig. 5 to 8, the measuring container 13 is fixed to the rotary plate 4 through the clamping groove 14 on the bottom cover. In this embodiment, the bottom of the measuring container 13 is provided with a bottom cover for placing the test piece to be tested, and a clamping groove 14 can be provided thereon, so as to be conveniently matched with the clamping block on the rotating disc 4, thereby realizing the fixed connection between the measuring container and the rotating disc 4.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 6, the bottom of the measuring container 13 has a dial. In this embodiment, the dial is provided to facilitate the rotation angle of the positioning mark 15.

As the embodiment of the utility model provides an optimization scheme, please refer to fig. 1 to 4, the support is including installing fixing base 2 on the host computer base 1, vertical locating dead lever 3 on the fixing base 2 and confession the measurement guide arm 6 of digital display percentage table 12 installation, measurement guide arm 6 can stretch to the top of host computer base 1. In this embodiment, refine the support into fixing base 2, dead lever 3 and measurement guide arm 6, can form L shape structure, conveniently establish the top at host computer base 1 with digital display percentage table 12 soon. Preferably, the measuring guide rod 6 is hinged to the fixing rod 3, the fixing rod 3 and the measuring guide rod 6 are designed to be hinged, the included angle between the fixing rod and the measuring guide rod can be adjusted, and the digital display dial indicator 12 can be conveniently installed.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 1 to 4, the measurement guide rod 6 is connected to a clamping rod 8, and the digital display dial indicator 12 is clamped and fixed by the clamping rod 8. In this embodiment, the clamping rod 8 can be used for installing the digital display dial indicator 12 through the clamping sleeve 10, and after the digital display dial indicator 12 is installed in the clamping sleeve 10, the digital display dial indicator is fixed through the fastening screw 11.

Further optimizing the technical scheme, the clamping rod 8 is telescopically arranged on the measuring guide rod 6, and the sum of the lengths of the clamping rod 8 and the measuring guide rod 6 is variable. In this embodiment, the clamping rod 8 and the measuring guide 6 may be designed to be telescopic, for example, the measuring guide 6 is a sleeve structure, and the clamping rod 8 can be inserted into or pulled out of the sleeve structure, so that when the clamping rod 8 and the measuring guide 6 are horizontally arranged and are in a line, the sum of the lengths of the two parts can be changed. The purpose of the design is to change the position of the side head of the digital display dial indicator 12, and when a piece to be tested rotates, more parts of the end face can be detected, so that the detection is more comprehensive. After the adjustment is completed, the two are fixed through the bolt 9.

As the embodiment of the utility model provides an optimization scheme, install spirit level 7 on the measurement guide arm 6. Preferably, the level 7 is a bubble level. In this embodiment, the levelness of the measuring guide rod 6 can be judged through the level gauge 7, so that the clamping rod 8 is ensured to be horizontal, and the vertical arrangement of the digital display dial indicator 12 is facilitated.

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. The utility model provides a measuring device of concrete core appearance test piece terminal surface roughness which characterized in that: the digital display dial indicator comprises a host base, a digital display dial indicator used for flatness measurement and a support used for erecting the digital display dial indicator, wherein a displacement component used for placing a to-be-tested piece and driving the to-be-tested piece to move so as to change the position of the end face of the to-be-tested piece is arranged on the host base, and the digital display dial indicator is suspended above the host base through the support and is opposite to the end face of the to-be-tested piece.

2. The apparatus for measuring the flatness of the end face of a concrete core sample specimen as claimed in claim 1, wherein: the displacement assembly comprises a rotary table arranged on the base of the host machine and a measuring container used for containing the piece to be tested, the measuring container rotates through the rotary table, the rotary table and the placing surface of the measuring container used for placing the piece to be tested are both horizontally arranged, and the digital display dial indicator is perpendicular to the rotary table.

3. The apparatus for measuring the flatness of the end face of a concrete core sample specimen as claimed in claim 2, wherein: and the wall of the measuring container is provided with a positioning mark.

4. The apparatus for measuring the flatness of the end face of a concrete core sample specimen as claimed in claim 2, wherein: the measuring container is fixed with the rotary disc through a clamping groove in the bottom cover of the measuring container.

5. The apparatus for measuring the flatness of the end face of a concrete core sample specimen as claimed in claim 2, wherein: the bottom of the measuring container is provided with a dial scale.

6. The apparatus for measuring the flatness of the end face of a concrete core sample specimen as claimed in claim 1, wherein: the support is including installing fixing base on the host computer base, vertical locating dead lever on the fixing base and confession the measurement guide arm of digital display percentage table installation, the measurement guide arm can extend the top of host computer base.

7. The apparatus for measuring the flatness of the end face of a concrete core sample specimen as claimed in claim 6, wherein: the measuring guide rod is hinged with the fixed rod.

8. The apparatus for measuring the flatness of the end face of a concrete core sample specimen as claimed in claim 6, wherein: the measuring guide rod is connected with a clamping rod, and the digital display dial indicator is clamped and fixed through the clamping rod.

9. The apparatus for measuring the flatness of the end face of a concrete core sample specimen as claimed in claim 8, wherein: the clamping rod is telescopically arranged on the measuring guide rod, and the sum of the lengths of the clamping rod and the measuring guide rod is variable.

10. The apparatus for measuring the flatness of the end face of a concrete core sample specimen as claimed in claim 6, wherein: and a level gauge is arranged on the measuring guide rod.