CN216770441U - Calibrating device of concrete carbonization degree of depth measuring apparatu - Google Patents

Abstract

The present application relates to the technical field of calibration devices, in particular to a calibration device for a concrete carbonation depth measuring instrument, comprising a mounting seat, a clamping component and a support member are mounted on the upper surface of the mounting seat, and the support member is slidably connected with a standard block, The calibration block is rotatably connected with a calibration screw, a scale is provided along the circumference on the side of the calibration screw near the lower end face, a benchmark rod is connected with the inner thread of the calibration screw, the benchmark rod is slidably connected to the support, and the scale rod is provided with a scale along the axial direction. When the zero scale of the calibration screw is aligned with the zero scale on the benchmark rod, the lower end face of the benchmark rod is flush with the lower end face of the scale block, and the lower end face of the scale block is parallel to the upper surface of the mounting seat. In the present application, when the calibration screw does not rotate, the lower end surface of the benchmark block serving as the datum plane and the benchmark rod of the measuring part slide synchronously relative to the mounting seat, which reduces the error caused by the asynchronous datum plane and the measuring part, and improves the calibration accuracy.

Description

A calibration device for concrete carbonation depth measuring instrument

technical field

The present application relates to the technical field of calibration devices, in particular to a calibration device for a concrete carbonation depth measuring instrument.

Background technique

Concrete carbonation depth measuring instrument, also known as carbonization ruler, is an instrument for measuring the carbonation depth of concrete layer. The phenolphthalein alcohol solution was sprayed into the hole dug out of the concrete layer, and the carbonization depth was measured from the colorless and red boundary line after the reaction of the phenolphthalein alcohol solution to the concrete surface. The upper end of the carbonization ruler touches the concrete surface, and the pointer at the upper end points to the boundary line between colorless and red, and the value displayed by the carbonization ruler is the carbonization depth. In order to make the measurement of the carbonized ruler accurate, it needs to be verified and calibrated. The existing calibration device clamps the micrometer and the carbonized ruler through a clamp, and then calibrates the carbonized ruler through the micrometer. The clamped micrometer is not stable, and the measurement Errors may affect the calibration accuracy of the carbonized ruler.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present application is to provide a calibration device for a concrete carbonation depth measuring instrument with higher precision.

The above-mentioned application purpose of the present application is achieved through the following technical solutions:

A calibration device for a concrete carbonation depth measuring instrument, comprising:

mount;

a clamping assembly, the clamping assembly is mounted on the upper surface of the mounting seat;

a support piece, the support piece is fixedly connected to the upper surface of the mounting seat;

a target block slidably connected to the support;

a support, fixedly connected to the target block;

a calibration screw, the calibration screw is rotatably connected to the support, the calibration screw is cylindrical, and a scale is provided along the circumference along the circumference of the side surface of the calibration screw near the lower end surface;

a benchmark rod, the benchmark rod is threadedly connected in the calibration screw, the benchmark rod is slidably connected to the support member, and a scale is provided on the benchmark rod along the axial direction;

Wherein, when the zero scale of the calibration screw is aligned with the zero scale on the benchmark, the lower end face of the benchmark rod is flush with the lower end face of the scale block, and the lower end face of the scale block is parallel to the upper surface of the mounting seat.

Optionally, the clamping assembly includes:

a backing plate, the backing plate is slidably connected to the mounting seat;

a screw, the screw is threadedly connected to the mounting seat, and the screw is rotatably connected to the backing plate;

There are two sets of mirror-symmetrical arrangement of the backing plate and the screw rod.

Optionally, the benchmark includes a scale segment, a thread segment and a spline segment, the scale segment is engraved with a scale, the thread segment is threadedly connected in the calibration screw, and the support member is provided with a spline hole, The spline segment is slidably connected to the support.

Optionally, the benchmark further includes a replaceable steel sheet, and the replaceable steel sheet is detachably installed on the lower end surface of the scale segment.

Optionally, the replaceable steel sheet is made of high-hardness steel.

Optionally, an installation groove is formed on the lower end surface of the scale segment, and a magnetic block is fixedly connected in the installation groove.

Optionally, support feet are installed at the top corners of the lower surface of the mounting seat.

Optionally, the support feet are threadedly connected to the mounting seat.

To sum up, the present application includes at least one of the following beneficial technical effects:

1. When the calibration screw does not rotate, the lower end face of the reference plane and the benchmark rod of the measuring part slide synchronously with respect to the mounting seat, which reduces the error caused by the asynchrony between the datum plane and the measuring part, and improves the calibration accuracy;

2. The service life of the benchmark is correspondingly improved by the replaceable and replaceable steel sheet setting;

3. Through the setting of the adjustable feet, the mounting seat is as horizontal as possible during calibration, which is convenient for calibration and further improves the calibration accuracy.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the embodiment of the present application;

FIG. 2 is a schematic structural diagram of a benchmark part of an embodiment of the present application.

Reference numerals: 1. Mounting seat; 11. Support feet;

2. Clamping component; 21. Backing plate; 22. Screw;

3. Support; 31. Horizontal plate; 32. Vertical plate;

4. Standard block; 41. Support rod; 42. Threaded rod; 43. Adjusting nut;

51, support; 52, calibration screw; 53, benchmark; 531, ruler segment; 532, thread segment; 533, spline segment; 534, replaceable steel sheet.

Detailed ways

The present application will be further described in detail below with reference to the accompanying drawings.

In order to more clearly understand the technical solutions shown in the embodiments of the present application, the working principle of an existing calibration device for a concrete carbonation depth measuring instrument is first introduced.

A calibration device for a concrete carbonation depth measuring instrument, comprising a base, a column is erected on the base, a lower clamping component and an upper clamping component are arranged on the column, the lower clamping component is used for clamping the concrete carbonation depth measuring instrument, and the upper The clamping assembly is used to clamp the digital dial indicator, and the vertical column is provided with a lifting assembly, which is connected with the lower clamping assembly and the upper clamping assembly.

From the user's point of view, the digital dial indicator is clamped to the clamping assembly and fixed by the clamping assembly. The clamping force and positioning ability of the clamping assembly affect the measurement accuracy of the dial indicator, thereby affecting the carbonization depth measuring instrument. Use precision.

Please refer to FIG. 1 and FIG. 2 , a calibration device for a concrete carbonation depth measuring instrument disclosed in an embodiment of the application includes a mounting base 1 , a clamping component 2 is mounted on the upper surface of the mounting base 1 , and the upper surface of the mounting base 1 is fixedly connected There is a support member 3, the support member 3 is slidably connected with a target block 4, the target block 4 is fixedly connected with a support 51, and the support 51 is rotatably connected with a calibration screw 52, the calibration screw 52 is cylindrical, and the calibration screw 52 The side face is close to the lower end face and is provided with a scale along the circumference, the calibration screw 52 is internally threaded with a benchmark rod 53, the benchmark rod 53 is slidably connected to the support 3, the benchmark rod 53 is provided with a scale along the axial direction, the calibration screw 52 zero scale and the benchmark rod When the upper zero scale of 53 is aligned, the lower end face of the benchmark rod 53 is flush with the lower end face of the scale block 4, and the lower end face of the scale block 4 is parallel to the upper surface of the mounting seat 1.

Specifically, a clamping assembly 2 for clamping the concrete carbonation depth measuring instrument is installed on the upper surface of the mounting base 1, above the clamping assembly 2 is a slidable landmark block 4, and a calibration screw 52 and a benchmark rod 53 are installed on the target block 4, The target block 4 is pressed against the upper end face of the concrete carbonation depth measuring instrument, and the lower end face of the benchmark rod 53 is attached to the pointer. By moving the benchmark rod 53, the accuracy of the concrete carbonation depth measuring instrument is detected.

In this way, when the calibration screw 52 does not rotate, the lower end surface of the benchmark block 4 serving as the reference plane and the benchmark rod 53 of the measuring part slide synchronously with respect to the mounting seat 1, which reduces the error caused by the asynchrony between the reference plane and the measuring part, and improves the Calibration accuracy.

In some feasible manners, the mounting base 1 is a rectangular plate, and the support member 3 is an L-shaped plate formed by vertically and fixedly connecting a horizontal plate 31 and a vertical plate 32 , and the horizontal plate 31 is located above the mounting base 1 and is parallel to the mounting base 1 . , the vertical plate 32 is vertically fixed on the upper surface of the mounting seat 1, the target block 4 is a rectangular block, the upper end surface of the target block 4 is provided with a support rod 41 and a threaded rod 42, and two support rods 41 are provided, symmetrically arranged on the two threaded rods 42. On the side, three through holes are correspondingly opened on the horizontal plate 31 , an adjusting nut 43 is threadedly connected to the threaded rod 42 , and the end surface of the adjusting nut 43 is fitted to the upper end surface of the horizontal plate 31 . The support 51 is a bearing seat, the calibration screw 52 is rotatably installed in the support 51 through the bearing, the calibration screw 52 is provided with an inner thread, the benchmark rod 53 is threadedly connected in the calibration screw 52, and the side of the calibration screw 52 is engraved with a scale along the circumference, A scale is engraved on the side of the benchmark rod 53 along the axial direction.

The following is a further introduction in combination with specific usage scenarios.

When in use, clamp the concrete carbonation depth measuring instrument to the clamping component 2, adjust the adjusting nut 43, so that the surface of the target block 4 is attached to the upper end surface of the concrete carbonation depth measuring instrument, and the benchmark rod 53 is at the zero position, that is, the lower end surface of the benchmark rod 53 is in contact with the upper end surface of the concrete carbonation depth measuring instrument. The lower surface of the standard block 4 is flush. By rotating the calibration screw 52, the relative distance between the lower end face of the benchmark rod 53 and the lower surface of the benchmark block 4 is changed, and the scale of the calibration screw 52 and the benchmark rod 53 is compared with the scale displayed by the concrete carbonation depth measuring instrument to verify the concrete carbonation. depth gauge.

As a specific embodiment of a calibration device for a concrete carbonation depth measuring instrument provided by the application, the clamping assembly 2 includes a backing plate 21 and a screw rod 22, the backing plate 21 is slidably connected to the mounting seat 1, and the screw rod 22 is threadedly connected In the mounting base 1, the screw rod 22 is rotatably connected to the backing plate 21, and the backing board 21 and the screw rod 22 are mirror-symmetrically arranged in two groups.

On the whole, the backing plate 21 is pushed by the rotation of the screw 22, and the two mirror-symmetrical backing plates 21 and the screw 22 move toward each other to clamp the concrete carbonation depth measuring instrument, which is convenient for adjusting the position of the concrete carbonation depth measuring instrument, and is also conducive to adapting Concrete carbonation depth gauge in different sizes.

In some feasible ways, the mounting seat 1 is provided with a T-shaped groove, a T-shaped block is fixedly connected to the lower surface of the backing plate 21, the T-shaped block is slidably connected to the T-shaped groove, and the upper surface of the mounting seat 1 is fixedly connected with a T-shaped block. A bearing seat, the bearing seat is connected with the screw 22 in a thread, and the backing plate 21 is pushed to slide by rotating the screw 22 .

As another specific embodiment of the calibration device for a concrete carbonation depth measuring instrument provided by the application, the benchmark 53 includes a scale section 531, a threaded section 532 and a spline section 533, the scale section 531 is engraved with a scale, and the threaded section 532 is threadedly connected Inside the calibration screw 52 , the support member 3 is provided with a spline hole, and the spline segment 533 is slidably connected to the support member 3 .

In combination with the specific usage scenario, the scale segment 531 is provided on the benchmark rod 53 to facilitate observation of the scale value, and the rotation of the benchmark rod 53 is restricted by the spline segment 533 and the support 3 to facilitate the rotation of the calibration screw 52 .

Further, the rod 53 further includes a replaceable steel sheet 534 , and the replaceable steel sheet 534 is detachably installed on the lower end surface of the scale section 531 .

It should be understood that the lower end surface of the benchmark rod 53 is in contact with the pointer and slides relatively, and the wear and tear of long-term use may affect the measurement accuracy. By replacing the replaceable steel sheet 534, it is beneficial to improve the measurement accuracy.

Further, the replaceable steel sheet 534 is made of high-hardness steel.

Further, an installation groove is formed on the lower end surface of the scale section 531, and a magnetic block is fixedly connected in the installation groove.

It should be understood that the installation of the replaceable steel sheet 534 is facilitated by the arrangement of the magnetic blocks.

In some feasible manners, in order to facilitate installation, the diameter of the spline section 533 is smaller than the thread diameter of the threaded section 532, the diameter of the lower end of the calibration screw 52 is the same as that of the scale section 531, and the lower end of the calibration screw 52 has no thread at least 1 cm upward, usually the concrete is carbonized The depth within 0.5 to 6 mm is a normal value, and the replaceable steel sheet 534 is made of high-hardness steel, which includes but is not limited to high-carbon tool steel, high-carbon alloy steel, and the like.

As a specific embodiment of the calibration device of the concrete carbonation depth measuring instrument provided by the application, the top corners of the lower surface of the mounting seat 1 are all mounted with feet 11 .

It should be understood that the mounting base 1 can be placed more stably by the feet 11 so as to facilitate the measurement.

Further, the support feet 11 are connected with the mounting base 1 by screws.

It should be understood that the supporting height of the feet 11 can be adjusted through the screw connection, so that the mounting base 1 can be adjusted as much as possible to facilitate the measurement.

The embodiments of this specific embodiment are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore: all equivalent changes made according to the structure, shape and principle of the present application should be covered in within the scope of protection of this application.

Claims (8)

1. a calibration device of concrete carbonation depth measuring instrument, is characterized in that, comprises: mount (1); a clamping assembly (2), the clamping assembly (2) is mounted on the upper surface of the mounting seat (1); a support (3), the support (3) is fixedly connected to the upper surface of the mounting seat (1); a target block (4), the target block (4) is slidably connected to the support (3); a support (51), fixedly connected to the target block (4); A calibration helix (52), the calibration helix (52) is rotatably connected to the support (51), the calibration helix (52) is cylindrical, and the side surface of the calibration helix (52) is close to the lower end face along the edge. The circumference is provided with scales; A benchmark (53), the benchmark (53) is screwed into the calibration screw (52), the benchmark (53) is slidably connected to the support (3), and the benchmark (53) is A scale is arranged along the axial direction; Wherein, when the zero scale of the calibration screw (52) is aligned with the upper zero scale of the benchmark (53), the lower end surface of the benchmark (53) is flush with the lower end surface of the target block (4), and the target block ( 4) The lower end surface is parallel to the upper surface of the mounting seat (1). 2 . The calibration device for a concrete carbonation depth measuring instrument according to claim 1 , wherein the clamping assembly ( 2 ) comprises: 2 . a backing plate (21), the backing plate (21) is slidably connected to the mounting seat (1); a screw (22), the screw (22) is threadedly connected to the mounting seat (1), and the screw (22) is rotatably connected to the backing plate (21); There are two sets of mirror-symmetrical arrangement of the backing plate (21) and the screw (22). 3. The calibration device for a concrete carbonation depth measuring instrument according to claim 1, wherein the benchmark (53) comprises a ruler segment (531), a thread segment (532) and a spline segment (533), The scale section (531) is engraved with a scale, the thread section (532) is threadedly connected to the calibration screw (52), the support member (3) is provided with a spline hole, and the spline section ( 533) is slidably connected to the support (3). 4. A calibration device for a concrete carbonation depth measuring instrument according to claim 3, characterized in that: the benchmark (53) further comprises a replaceable steel sheet (534), and the replaceable steel sheet (534) can be It is disassembled and installed on the lower end surface of the scale section (531). 5 . The calibration device for a concrete carbonation depth measuring instrument according to claim 4 , wherein the replaceable steel sheet ( 534 ) is made of high-hardness steel. 6 . 6 . The calibration device for a concrete carbonation depth measuring instrument according to claim 5 , wherein a mounting groove is formed on the lower end surface of the scale section ( 531 ), and a magnetic block is fixedly connected in the mounting groove. 7 . 7 . The calibration device for a concrete carbonation depth measuring instrument according to claim 1 , characterized in that: feet ( 11 ) are installed at the top corners of the lower surface of the mounting seat ( 1 ). 8 . 8 . The calibration device for a concrete carbonation depth measuring instrument according to claim 7 , wherein the support feet ( 11 ) are threadedly connected to the mounting seat ( 1 ). 9 .

Images