CN210863634U - A centering device for concrete measuring probe - Google Patents

Abstract

The utility model discloses a centering device for a concrete measuring probe, which is characterized by comprising a base, an object carrier and two probe fixing mechanisms arranged oppositely. The object carrier is fixed on the base, and the probe fixing mechanism is located above the object carrier. There is a three-way moving mechanism between the probe fixing mechanism and the base, and a synchronous moving mechanism is set between the two sets of oppositely arranged three-way moving mechanisms, so that the two probes move synchronously; the advantage is that there are three There is a synchronous movement mechanism between the two sets of oppositely arranged three-way movement mechanisms, so that the two probes move synchronously. When measuring the performance parameters of concrete samples, the experimental operation is scientific and rigorous, and data misjudgment is avoided. , which makes the elastic modulus measurement and defect detection of concrete samples more scientific and accurate, and improves the reliability of experimental data.

Description

A centering device for concrete measuring probe

technical field

The utility model relates to an experimental device for studying concrete performance parameters, in particular to a centering device for a concrete measuring probe.

Background technique

In the experiment of measuring concrete performance parameters, it is often necessary to measure the elastic modulus of concrete, and then analyze the defect distribution of concrete. However, the current experimental operation is unscientific. First, the measurement method is not rigorous: at present, the ultrasonic probe is held with both hands, so that it is tightly attached to the two sides of the concrete sample and centered. There is a concrete sample in the middle, which cannot guarantee the synchronous movement and alignment of the two ultrasonic probes, and also cannot guarantee that the end faces of the two probes are parallel to each other, resulting in inaccurate measurement data; The experimental error sometimes causes the measured data to exceed the estimated value range, but it is difficult to judge whether the data beyond the estimated value range is caused by improper operation or the defect of the sample itself, which makes the recorded data inaccurate.

SUMMARY OF THE INVENTION

The technical problem to be solved by the utility model is to provide a centering device for a concrete measuring probe, which avoids improper operation methods and makes the elastic modulus measurement and defect detection of concrete samples more scientific and accurate.

The technical solution adopted by the present invention to solve the above technical problems is as follows: a centering device for a concrete measuring probe, comprising a base, an object carrier and two oppositely arranged probe fixing mechanisms, and the object carrier is fixed on the On the base, the probe fixing mechanism is located above the object carrier, a three-way moving mechanism is arranged between the probe fixing mechanism and the base, and two sets of oppositely arranged three-way moving mechanisms are arranged between the two groups. A synchronous moving mechanism is provided to make the two probes move synchronously.

Further, the three-way moving mechanism includes a first guide rod, a second guide rod, a first slider, a second slider and a third slider, and the first guide rod is horizontally fixed on the base The first slider is sleeved on the first guide rod and is horizontally slidingly matched with the first guide rod, and the second slider is fixedly connected with the first slider. The synchronous moving mechanism includes a U-shaped connecting rod, and the two connecting arms of the U-shaped connecting rod respectively pass through the second sliding block on the corresponding side thereof and are vertically slidably matched with the second sliding block. The third sliding block is fixed on the upper end of the connecting arm on the corresponding side, the second guide rod passes through the third sliding block and is horizontally slidably matched with the third sliding block. The sliding direction of the second guide rod is perpendicular to the sliding direction of the first slider, the outer end of the second guide rod is fixedly provided with a handle, and the inner end of the second guide rod is connected to the probe The fixing mechanism is fixed.

Further, the probe fixing mechanism includes a connecting frame, a V-shaped upper fixing frame and a V-shaped lower fixing frame, and the connecting frame is sleeved on the inner end of the second guide rod and is connected with the second guide rod. The rods are closely matched, the V-shaped lower fixing frame is integrally connected with the connecting frame, and the V-shaped upper fixing frame and the V-shaped lower fixing frame are arranged opposite to each other up and down and fixed by bolts.

Further, a baffle plate is integrally provided on the rear side of the object carrier.

Compared with the prior art, the advantage of the present invention is that a three-way moving mechanism is arranged between the probe fixing mechanism and the base, and a synchronous moving mechanism is arranged between the two sets of oppositely arranged three-way moving mechanisms, so that the two probes are synchronized. When measuring the performance parameters of concrete samples, it makes the experimental operation scientific and rigorous, avoids data misjudgment, makes the elastic modulus measurement and defect detection of concrete samples more scientific and accurate, and improves the reliability of experimental data; The device has simple structure and high centering precision.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

FIG. 2 is a schematic structural diagram of the probe fixing mechanism of the present invention.

Detailed ways

The present utility model will be further described in detail below with reference to the embodiments of the accompanying drawings.

As shown in the figure, a centering device for a concrete measuring probe includes a base 1, an object carrier 2 and two oppositely arranged probe fixing mechanisms. The object carrier 2 is fixed on the base 1, and the rear side of the object carrier 2 A baffle 21 is integrally provided, the probe fixing mechanism is located above the object carrier plate 2, a three-way moving mechanism is arranged between the probe fixing mechanism and the base 1, and a synchronous moving mechanism is arranged between the two sets of oppositely arranged three-way moving mechanisms, so that Two probes move synchronously;

The three-way moving mechanism includes a first guide rod 3, a second guide rod 4, a first slider 5, a second slider 6 and a third slider 7. The first guide rod 3 is horizontally fixed on the base 1, and the first slider The block 5 is sleeved on the first guide rod 3 and is horizontally slidably matched with the first guide rod 3. The second sliding block 6 is fixedly connected with the first sliding block 5. The synchronous moving mechanism includes a U-shaped connecting rod 8 and a U-shaped connecting rod 8 The two connecting arms 81 respectively pass through the second sliding block 6 on the corresponding side and are vertically slidably matched with the second sliding block 6. The third sliding block 7 is fixed on the upper end of the connecting arm 81 on the corresponding side. The rod 4 passes through the third sliding block 7 and is horizontally slidingly matched with the third sliding block 7. The sliding direction of the second guide rod 4 is perpendicular to the sliding direction of the first sliding block 5, and the outer end of the second guide rod 4 is fixedly set There is a handle 41, and the inner end of the second guide rod 4 is fixed with the probe fixing mechanism. The probe fixing mechanism includes a connecting frame 9, a V-shaped upper fixing frame 91 and a V-shaped lower fixing frame 92, and the connecting frame 9 is sleeved on the second guide rod. The inner end of 4 is closely matched with the second guide rod 4, the V-shaped lower fixing frame 92 is integrally connected with the connecting frame 9, and the V-shaped upper fixing frame 91 and the V-shaped lower fixing frame 92 are arranged opposite each other and fixed by bolts.

In the above-mentioned embodiment, the use method of the centering device is as follows: first place the concrete sample on the object carrier 2, abut against the baffle plate 21 of the object carrier 2, and make the two sides of the concrete sample and the object carrier 2 close to each other. The two sides of the ultrasonic probe are kept parallel to ensure the parallelism between the two sides of the concrete sample and the end face of the probe, and then the two ultrasonic probes are respectively fixed in the corresponding probe fixing mechanism, and the two handles 41 are respectively held in both hands to drive the two probes. The fixing mechanism moves up, down, left and right at the same time. When the ultrasonic probe moves to the ideal position, hold the handle 41 with both hands to drive the probe fixing mechanism to move towards the concrete sample, so that the end face of the ultrasonic probe is close to the concrete sample. Both sides, complete the measurement.

Claims (4)

1. A centering device for a concrete measuring probe, characterized in that it comprises a base, an object carrier and two probe fixing mechanisms that are arranged oppositely, and the object carrier is fixed on the base, and the probe is fixed The mechanism is located above the object carrier plate, a three-way moving mechanism is arranged between the probe fixing mechanism and the base, and a synchronous moving mechanism is arranged between the two sets of oppositely arranged three-way moving mechanisms, so that the two The probe moves synchronously. 2 . The centering device for a concrete measuring probe according to claim 1 , wherein the three-way moving mechanism comprises a first guide rod, a second guide rod, a first slider, and a second slider. 3 . and a third slider, the first guide rod is horizontally fixed on the base, the first slider is sleeved on the first guide rod and slides horizontally with the first guide rod In cooperation, the second sliding block is fixedly connected with the first sliding block, the synchronous moving mechanism includes a U-shaped connecting rod, and the two connecting arms of the U-shaped connecting rod pass through its corresponding sides respectively. The second sliding block is vertically slidably matched with the second sliding block, the third sliding block is fixed on the upper end of the connecting arm on its corresponding side, and the second guide rod passes through the first sliding block. Three sliding blocks are horizontally slidably matched with the third sliding block, the sliding direction of the second guide rod is perpendicular to the sliding direction of the first sliding block, and the outer end of the second guide rod is A handle is fixedly arranged, and the inner end of the second guide rod is fixed with the probe fixing mechanism. 3. The centering device for a concrete measuring probe according to claim 2, wherein the probe fixing mechanism comprises a connecting frame, a V-shaped upper fixing frame and a V-shaped lower fixing frame, and the connecting frame The inner end of the second guide rod is sleeved and tightly matched with the second guide rod, the V-shaped lower fixing frame is integrally connected with the connecting frame, and the V-shaped upper fixing frame is connected with the The V-shaped lower fixing frame is oppositely arranged up and down and fixed by bolts. 4 . The centering device for a concrete measuring probe according to claim 1 , wherein a baffle plate is integrally provided on the rear side of the object carrier. 5 .

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