CN212567297U - Concrete test piece deformation testing device based on laser method - Google Patents

Abstract

The utility model discloses a concrete sample deformation testing device based on a laser method, which comprises a data acquisition instrument, a cable and a testing bracket, wherein the testing bracket comprises a horizontal testing bracket and a vertical testing bracket, the horizontal testing bracket comprises a laser displacement sensor a, a left baffle, a right baffle and a plurality of supporting shafts, the left baffle and the right baffle are respectively and vertically fixed at two ends of the supporting shafts, a piece a to be tested is arranged above the supporting shafts, one end of the piece a to be tested is provided with a sealing plug which is fixedly connected with the left baffle through a fixing bolt, the middle part of the right baffle is provided with a testing window, a transverse chute component a is fixedly arranged below the testing window, a sensor fixing component a is arranged above the transverse chute component a, the sensor fixing component in the testing device provided by the application can be adjusted and moved, and the testing point of the laser displacement sensor can be ensured to be always positioned at the axis of the test piece, and further, the test error is reduced, and the stability of the test result is ensured.

Description

Concrete test piece deformation testing device based on laser method

Technical Field

The utility model relates to a concrete material warp test technical field, in particular to concrete sample warp testing arrangement based on laser method.

Background

The self-contraction deformation of concrete tested by the corrugated pipe method is a widely accepted concrete self-contraction testing method, sensors for testing the concrete self-contraction deformation are divided into two major types of contact type and non-contact type, an eddy current sensor is adopted in the non-contact type, but the self-contraction deformation of a concrete corrugated pipe test piece tested by a laser displacement sensor with higher precision and stability is not found, because the laser displacement sensor has larger volume and size and is not smaller than measuring heads of other types of sensors, the assembly is inconvenient. When the vertical deformation test of concrete test piece autogenous volume deformation, drying shrinkage and the like is carried out, the laser displacement sensor often causes that the light ray is not vertical downwards, namely not perpendicular to the surface of the test surface of the concrete test piece due to the assembly reason, so that the test error is generated, and the problem that the laser test light beam cannot be aligned to the axis position of the test piece when the concrete test pieces with different sizes are tested exists.

SUMMERY OF THE UTILITY MODEL

For laser displacement sensor assembly and test centering problem when overcoming the bellows concrete test piece deformation test that exists among the prior art to and the straightness's that hangs down problem of test light beam when vertical test concrete test piece warp, the utility model provides a concrete test piece warp testing arrangement based on laser method.

The specific technical scheme is as follows:

a concrete sample deformation testing device based on a laser method comprises a data acquisition instrument, a cable and a testing support, wherein the testing support is connected with the data acquisition instrument through the cable, the testing support comprises a horizontal testing support and a vertical testing support, the horizontal testing support comprises a laser displacement sensor a, a left baffle, a right baffle and a plurality of supporting shafts, the left baffle and the right baffle are respectively and vertically and fixedly arranged at two ends of the plurality of supporting shafts, a piece a to be tested is arranged above the plurality of supporting shafts, one end of the piece a to be tested is provided with a sealing plug, the sealing plug is fixedly connected with the left baffle through a fixing bolt, a testing window is arranged in the middle of the right baffle, a transverse chute component a is fixedly arranged below the testing window, a sensor fixing component a is arranged above the transverse chute component a, and the laser displacement sensor a is fixedly connected with the sensor fixing component a, the laser displacement sensor a is arranged opposite to the to-be-tested part a.

Preferably, the sensor fixing member a is a steel sheet, two vertical parallel waist-shaped through holes are formed in the lower end of the sensor fixing member a, and the sensor fixing member a is fixedly arranged on the transverse sliding groove member a through a fixing bolt.

Preferably, handles are arranged above the left baffle and the right baffle.

Preferably, the vertical test support comprises a bottom plate, a fixing rod, a transverse sliding groove component b, a sensor fixing component b and a laser displacement sensor b, wherein the fixing rod is vertically arranged on one side of the bottom plate, one end of the transverse sliding groove component b is fixedly connected with the fixing rod, the transverse sliding groove b is parallel to the bottom plate, the laser displacement sensor b is fixedly arranged on the transverse sliding groove component b through the sensor fixing component b, a piece b to be tested is arranged on the bottom plate, and the laser displacement sensor b is arranged opposite to the piece b to be tested.

Preferably, horizontal spout component b includes horizontal spout body to and two fastening bodies with horizontal spout body one end fixed connection, two the fastening body uses horizontal spout body to set up as symmetry axis symmetry, two the fastening body sets up the periphery at the dead lever, horizontal spout component b still includes the locking swing arm, the locking swing arm runs through two fastening bodies for fasten horizontal spout b peripherally at the dead lever, the even interval in horizontal spout body surface is provided with a plurality of horizontal waist type through-holes.

Sensor fixed component b is the bar steel sheet, sensor fixed component b middle part is provided with fixed sliding tray, the even interval in sensor fixed component b surface is provided with fixed orifices a, fixed orifices b and fixed orifices c, fixed orifices b sets up in fixed sliding tray, all be provided with fixing bolt in fixed orifices a, fixed orifices b and the fixed orifices c, sensor fixed component b passes through fixed orifices a and the fixed orifices c slant is fixed and is set up at the laser displacement sensor b back, laser displacement sensor b passes through fixed orifices b and horizontal spout body fixed connection.

Compared with the prior art, the utility model following beneficial effect has:

(1) the application discloses a concrete sample deformation testing arrangement based on laser method, including data acquisition instrument, cable and test support, the test support passes through the cable and links to each other with the data acquisition instrument, the test support includes horizontal test support and vertical test support, and wherein the sensor fixed component a of horizontal test support can reciprocate the adjustment, and then the test piece of the different diameter sizes of test, and laser displacement sensor a fixes on horizontal spout component a in addition, can guarantee that laser displacement sensor's test point is located the axle center of test piece always, and then has reduced test error, has ensured test result's stability.

(2) Sensor fixed component b in the vertical test support can remove about in this application, can test the concrete sample of not unidimensional size, and then can also ensure that laser displacement sensor b's test point is located the axle center of concrete sample, guarantees test data's uniformity.

Drawings

FIG. 1 is a schematic structural diagram of a transverse testing device in a concrete sample deformation testing device based on a laser method of the utility model;

fig. 2 is a schematic structural diagram of a sensor fixing member a in a concrete sample deformation testing device based on a laser method of the utility model;

FIG. 3 is a front view of a vertical testing device in a concrete sample deformation testing device based on a laser method of the utility model;

FIG. 4 is a rear view of a vertical testing device in a concrete specimen deformation testing device based on a laser method of the utility model;

fig. 5 is a schematic structural diagram of a sensor fixing member b in a concrete sample deformation testing device based on a laser method of the utility model;

fig. 6 is a schematic structural diagram of a transverse sliding groove member b in a concrete sample deformation testing device based on a laser method.

In the figure, 11-laser displacement sensor a, 12-left baffle, 13-right baffle, 14-support shaft, 15-tested piece a, 16-sealing plug, 17-transverse chute component a, 18-handle, 19-sensor fixing component a, 21-bottom plate, 22-fixing rod, 23-transverse chute component b, 231-transverse chute body, 232-fastening body, 233-locking rotary rod, 24-sensor component b, 241-fixing hole a, 242-fixing hole b, 243-fixing hole c, 244-fixing sliding groove, 25-laser displacement sensor and 26-tested piece b.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The utility model discloses a concrete sample warp testing arrangement based on laser method, including data acquisition instrument, cable, and test support, the test support passes through the cable and the data acquisition instrument links to each other, and the test support includes horizontal test support and vertical test support, as shown in FIG. 1, and horizontal test support includes laser displacement sensor a11, left baffle 12, right baffle 13 and a plurality of back shaft 14, and left baffle 12 and right baffle 13 vertical fixation respectively set up the both ends at a plurality of back shafts 14, and left baffle 12 and right baffle 13 top are provided with handle 18. The supporting shafts 14 are provided with at least two supporting shafts 14, a to-be-tested piece a15 is arranged above the supporting shafts 14, one end of a to-be-tested piece a15 is provided with a sealing plug 16, the sealing plug 16 is fixedly connected with the left baffle 12 through a fixing bolt, the middle of the right baffle 13 is provided with a testing window, a transverse sliding groove component a17 is fixedly arranged below the testing window, a sensor fixing component a19 is arranged above the transverse sliding groove component a17, a laser displacement sensor a11 is fixedly connected with the sensor fixing component a19, and the laser displacement sensor a11 is arranged opposite to the to-be-tested piece a 15. As shown in fig. 2, the sensor fixing member a19 is a steel sheet, two vertical parallel waist-shaped through holes are opened at the lower end of the sensor fixing member a19, and the sensor fixing member a19 is fixedly arranged on the transverse sliding groove member a17 through a fixing bolt. The sensor fixing member a19 is adjusted up and down to move, so that concrete test pieces with different diameters can be tested, and meanwhile, the transverse chute member a17 is fixedly arranged, so that the test point of the laser displacement sensor 25 can be ensured to be positioned at the axis of the concrete test piece.

As shown in fig. 3 and 4, the vertical test rack includes a bottom plate 21, a fixing rod 22, a transverse sliding groove member b23, a sensor fixing member b and a laser displacement sensor 25b, the fixing rod 22 is vertically disposed on one side of the bottom plate 21, one end of the transverse sliding groove member b23 is fixedly connected with the fixing rod 22, the transverse sliding groove b is parallel to the bottom plate 21, the laser displacement sensor 25b is fixedly disposed on the transverse sliding groove member b23 through the sensor fixing member b, a piece to be tested b26 is disposed on the bottom plate 21, and the laser displacement sensor 25b is disposed opposite to the piece to be tested b 26.

As shown in fig. 6, the transverse sliding groove member b23 includes a transverse sliding groove body 231, and two fastening bodies 232 fixedly connected to one end of the transverse sliding groove body 231, the two fastening bodies 232 are symmetrically disposed with the transverse sliding groove body 231 as a symmetry axis, the two fastening bodies 232 are disposed at the periphery of the fixing rod 22, the transverse sliding groove member b23 further includes a locking rotary rod 233, the locking rotary rod 233 penetrates through the two fastening bodies 232 for fastening the transverse sliding groove b at the periphery of the fixing rod 22, and a plurality of transverse waist-shaped through holes are uniformly spaced on the surface of the transverse sliding groove body 231.

As shown in fig. 5, the sensor fixing member b is a strip-shaped steel plate, a fixing sliding groove 244 is disposed in the middle of the sensor fixing member b, fixing holes a241, a fixing hole b242 and a fixing hole c243 are uniformly spaced on the surface of the sensor fixing member b, the fixing hole b242 is disposed in the fixing sliding groove 244, fixing bolts are disposed in the fixing holes a241, the fixing hole b242 and the fixing hole c243, the sensor fixing member b is obliquely and fixedly disposed on the back of the laser displacement sensor 25b through the fixing holes a241 and the fixing hole c243, and the laser displacement sensor 25b is fixedly connected with the transverse sliding chute body 231 through the fixing hole b 242.

The sensor fixing member b is adjusted and moved left and right, so that concrete test pieces with different sizes can be tested, and the test point of the laser displacement sensor 25 can be ensured to be positioned at the axis of the concrete test piece.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims (6)

1. The utility model provides a concrete sample deformation testing arrangement based on laser method which characterized in that: comprises a data acquisition instrument, a cable and a test bracket, wherein the test bracket is connected with the data acquisition instrument through the cable, the test support comprises a horizontal test support and a vertical test support, the horizontal test support comprises a laser displacement sensor a, a left baffle, a right baffle and a plurality of support shafts, the left baffle and the right baffle are respectively and vertically fixed at two ends of a plurality of supporting shafts, a piece a to be tested is arranged above the plurality of supporting shafts, one end of the piece a to be tested is provided with a sealing plug which is fixedly connected with the left baffle plate through a fixing bolt, a test window is arranged in the middle of the right baffle, a transverse chute component a is fixedly arranged below the test window, a sensor fixing component a is arranged above the transverse chute component a, the laser displacement sensor a is fixedly connected with the sensor fixing component a, and the laser displacement sensor a is arranged opposite to the to-be-tested piece a.

2. The concrete sample deformation testing device based on the laser method as claimed in claim 1, characterized in that: the sensor fixing component a is a steel sheet, two vertical parallel waist-shaped through holes are formed in the lower end of the sensor fixing component a, and the sensor fixing component a is fixedly arranged on the transverse sliding groove component a through a fixing bolt.

3. The concrete sample deformation testing device based on the laser method as claimed in claim 2, characterized in that: handles are arranged above the left baffle and the right baffle.

4. The concrete sample deformation testing device based on the laser method as claimed in claim 1, characterized in that: the vertical test support comprises a bottom plate, a fixing rod, a transverse sliding groove component b, a sensor fixing component b and a laser displacement sensor b, wherein the fixing rod is vertically arranged on one side of the bottom plate, one end of the transverse sliding groove component b is fixedly connected with the fixing rod, the transverse sliding groove b is parallel to the bottom plate, the laser displacement sensor b is fixedly arranged on the transverse sliding groove component b through the sensor fixing component b, a to-be-tested piece b is arranged on the bottom plate, and the laser displacement sensor b is arranged opposite to the to-be-tested piece b.

5. The concrete sample deformation testing device based on the laser method as claimed in claim 4, characterized in that: horizontal spout component b includes horizontal spout body to and two fastening bodies with horizontal spout body one end fixed connection, two the fastening body uses horizontal spout body to set up as symmetry axis symmetry, two the fastening body sets up the periphery at the dead lever, horizontal spout component b still includes the locking swing arm, the locking swing arm runs through two fastening bodies for fasten horizontal spout b in the dead lever periphery, the even interval in horizontal spout body surface is provided with a plurality of horizontal waist type through-holes.

6. The concrete sample deformation testing device based on the laser method as claimed in claim 5, characterized in that: sensor fixed component b is the bar steel sheet, sensor fixed component b middle part is provided with fixed sliding tray, the even interval in sensor fixed component b surface is provided with fixed orifices a, fixed orifices b and fixed orifices c, fixed orifices b sets up in fixed sliding tray, all be provided with fixing bolt in fixed orifices a, fixed orifices b and the fixed orifices c, sensor fixed component b passes through fixed orifices a and the fixed orifices c slant is fixed and is set up at the laser displacement sensor b back, laser displacement sensor b passes through fixed orifices b and horizontal spout body fixed connection.

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