CN204065090U - Based on hyperacoustic slump measuring instrument - Google Patents

Abstract

Ultrasonic-based slump measuring instrument, including a slump cylinder and a bottom plate, is characterized in that: a support rod is arranged on one side of the bottom plate, a sleeve is arranged on the support rod, and a fastening screw is arranged on the sleeve; an X is arranged above the bottom plate The guide rail and the X-direction rail are fitted with an X-direction rack that slides and fits in the X-direction rail. The driving gear that cooperates with the X-direction rack is supported on a gear support through the gear shaft. The gear support is fixed on the X guide rail. The gear shaft is connected to an X-direction driving crank; the bottom of the X-direction rack is connected to the Y-direction rail, and a Y-direction slide bar is slid inside the Y-direction rail. The bottom of the Y-direction slide bar is fixed with an ultrasonic scanning distance measuring device. One end of the Y-direction slide bar is provided with an upward protrusion, the protrusion is provided with a Y-direction light hole, and a Y-direction screw is arranged in the hole, and a threaded hole is provided in the Y-direction rail, and the front end of the Y-direction screw is matched with the threaded hole. The rear end of the screw rod is positioned at the rear of the boss and a stopper is provided. The tester can reduce the influence of human factors and improve the detection accuracy.

Description

Ultrasonic based slump measuring instrument

technical field

The utility model relates to a detection and measurement tool for detecting the performance of concrete, in particular to a concrete slump measurement device.

Background technique

At the project construction site, it is necessary to measure the slump of the commercial concrete or artificially mixed concrete purchased by the construction company to determine whether the commercial concrete or artificially mixed concrete is qualified.

The existing measurement method is: use the slump cylinder 1 to fill concrete, then lift the slump cylinder 1 and measure after the concrete has completely slumped, as shown in FIG. 1 .

This kind of measurement method is prone to large errors in measuring the actual height after the collapse due to inaccurate selection of the highest point of the concrete after the collapse and too low line of sight during the measurement. Thus the calculated slump is inaccurate or even inaccurate.

Utility model content

In order to overcome the shortcomings of the above-mentioned prior art, the purpose of this utility model is to provide a slump measuring instrument based on ultrasonic waves, which can reduce the influence of human factors and improve the detection accuracy.

In order to solve the above problems, the utility model adopts the following technical solutions: a slump measuring instrument based on ultrasonic waves, including a slump cylinder and a bottom plate, characterized in that: a support rod is arranged on one side of the bottom plate, and a sleeve is arranged on the support rod , the sleeve is provided with a fastening screw for fixing the position of the sleeve on the support rod; an X-direction rail is arranged above the bottom plate, and an X-direction rack is assembled to slide and fit in the X-direction rail, and cooperate with the X-direction rack The drive gear of the drive gear is supported on a gear support through the gear shaft, and the gear support is fixed on the X-direction rail. The gear shaft of the drive gear is connected to an X-direction drive handle; A Y-direction slide is assembled by sliding inside the Y-direction rail. The bottom of the Y-direction slide is fixed with an ultrasonic scanning distance measuring device. One end of the Y-direction slide is provided with an upward protrusion, and the protrusion is set A Y-direction light hole, a Y-direction screw rod is arranged in the Y-direction light hole, a threaded hole is arranged in the Y-direction rail, the front end of the Y-direction screw rod cooperates with the threaded hole, and the rear end of the Y-direction screw rod The end is located behind the boss and is provided with a stopper.

As a further technical solution of the present utility model: in the ultrasonic-based slump measuring instrument, the support rod is provided with a scale indicating height.

A further technical solution: in the ultrasonic-based slump measuring instrument, an extension plate is fixed on the sleeve, and a vertical threaded hole is arranged on the extension plate, and a vertical threaded hole is assembled with a vertical screw rod , a fixed plate is arranged at the bottom of the support rod, a vertical light hole is arranged on the fixed plate, the bottom end of the vertical screw rod passes through the light hole and a stopper is arranged under the fixed plate.

A further technical solution: in the ultrasonic-based slump measuring instrument, an operating handle is provided on the upper end of the vertical screw rod.

The beneficial effects of the utility model are: the ultrasonic-based slump measuring instrument can easily measure the actual height of the concrete after slumping, avoiding the measurement error caused by inaccurate selection of the highest point during measurement or incorrect line of sight during reading, and ensuring the accuracy of the measurement. accuracy.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

Fig. 1 is the schematic diagram of concrete slump detection method in the prior art;

Fig. 2 is the structural representation of the utility model embodiment;

Fig. 3 is a schematic diagram (enlarged) of the A-direction of the Y-direction rail and the Y-direction slide bar in Fig. 2;

In the figure: 1 slump cylinder, 2 bottom plate, 3 support rod, 31 scale, 4 sleeve, 5 fastening screw, 6X guide rail, 7X rack, 8 drive gear, 9 gear support, 10X drive rocker Handle, 11 Y guide rail, 12 Y slide bar, 13 Ultrasonic scanning ranging device, 14 Protruding platform, 15 Y screw, 16 Stopper, 17 Extension plate, 18 Vertical screw, 19 Fixed plate, 20 Stopper, 21 Operating handle, 22 slumps finished concrete.

Detailed ways

As shown in FIGS. 2 and 3 , the ultrasonic-based slump measuring instrument mainly includes a slump cylinder 1 and a bottom plate 2 .

One side of the bottom plate 2 is provided with a support rod 3 , a sleeve 4 is arranged on the support rod 3 , and a fastening screw 5 for fixing the position of the sleeve 4 on the support rod 3 is arranged on the sleeve 4 .

An X-direction rail 6 is arranged above the bottom plate 2, and an X-direction rack 7 is assembled to slide and fit in the X-direction rail 6. The driving gear 8 matched with the X-direction rack 7 is supported on a gear support 9 through a gear shaft. The gear support 9 is fixed on the X-direction rail 6 , and the gear shaft of the drive gear 8 is connected with an X-direction driving crank 10 .

The bottom of the X-direction rack 7 is connected with the Y-guiding rail 11, as shown in Figure 3, a Y-direction slide bar 12 is slid in the Y-direction guide rail 11, and the bottom of the Y-direction slide bar 12 is fixed with an ultrasonic scanning ranging Device 13, one end of the Y-direction slide bar 12 is provided with an upward protrusion 14, the protrusion 14 is provided with a Y-direction light hole, and a Y-direction screw rod 15 is arranged in the Y-direction light hole, and the Y-direction rail 11 is provided with a threaded hole, the front end of the Y-direction screw rod 15 fits with the threaded hole, and the rear end of the Y-direction screw rod 15 is located behind the protrusion 14 and is provided with a stopper 16 .

When measuring, use the X-direction to rotate the handle 10 to rotate the drive gear 8, thereby driving the X-direction rack 7 to move, driving the Y-direction rail 11, and the Y-direction slide bar 12 to drive the ultrasonic scanning distance measuring device 13 to move along the X-direction for scanning ranging. After the scan at this place is completed, use the Y-screw 15 to drive the Y-slide bar to drive the ultrasonic scanning distance measuring device 13 to move along the Y-direction, adjust the position of the Y-direction, and adjust to a new scanning area, which can be compared with the existing scanning area. The scanned areas are partially overlapped to avoid blind spots. After the adjustment is completed, the X-direction rack 7 is used to drive the ultrasonic scanning distance measuring device 13 to scan again. After repeating this process, all the tops of the slumped concrete 22 are scanned and measured, and finally the distance of the highest point is given by the ultrasonic scanning distance measuring device, and then the height of the highest point is obtained according to the height of the ultrasonic scanning distance measuring device 13 itself. , so that the slump can be further obtained.

Ultrasonic scanning ranging device 13 in the utility model is prior art, can directly use market way etc. to obtain.

A further technology adopted in this embodiment: in the ultrasonic-based slump measuring instrument, the support rod 3 is provided with a scale 31 indicating the height. It is convenient to determine the position height of the ultrasonic scanning ranging device 13 .

Further technology adopted in this embodiment: in the ultrasonic-based slump measuring instrument, an extension plate 17 is fixed on the sleeve 4, and a vertical threaded hole is arranged on the extension plate 17, and the vertical threaded hole A vertical screw mandrel 18 is assembled in the hole, and a fixed plate 19 is set at the bottom of the support rod 3. The fixed plate 19 is provided with a vertical light hole, and the bottom end of the vertical screw mandrel 18 passes through the light hole. The hole and the stopper 20 are set under the fixed plate 19. This can make the support of the X guide rail 6 more reliable, and the adjustment is also very convenient.

A further technology adopted in this embodiment: in the ultrasonic-based slump measuring instrument, an operating handle 21 is provided on the upper end of the vertical screw 18, which increases the convenience of operation.

The above embodiments are only preferred embodiments of the present invention, and the scope of protection of the present invention is not limited to the above embodiments.

Claims (4)

1. A slump measuring instrument based on ultrasonic waves, including a slump cylinder and a base plate, is characterized in that: a support rod is arranged on one side of the base plate, a sleeve is provided on the support rod, and a sleeve is provided on the sleeve for fixing the sleeve The fastening screw at the position on the support rod; an X-direction rail is set above the bottom plate, and an X-direction rack is assembled to slide and fit in the X-direction rail, and the driving gear matched with the X-direction rack is supported on a gear support through the gear shaft. On the seat, the gear support is fixed on the X-guiding rail, and the gear shaft of the driving gear is connected to an X-direction driving handle; the bottom of the X-direction rack is connected to the Y-guiding rail, and the Y-guiding rail is slid to assemble A Y-direction slide bar, the bottom of the Y-direction slide bar is fixed with an ultrasonic scanning distance measuring device, one end of the Y-direction slide bar is provided with an upward protrusion, and the protrusion is provided with a Y-direction light hole, and the Y-direction light hole There is a Y-direction screw rod inside, and a threaded hole is arranged in the Y-direction rail, the front end of the Y-direction screw rod matches the threaded hole, and the rear end of the Y-direction screw rod is located behind the protrusion and is provided with Headstop. 2. The ultrasonic-based slump measuring instrument according to claim 1, characterized in that: the support rod is provided with a scale indicating the height. 3. The ultrasonic-based slump measuring instrument according to claim 1 or 2, characterized in that: an extension plate is fixed on the sleeve, and a vertical threaded hole is arranged on the extension plate, and the vertical thread A vertical screw rod is assembled in the hole, and a fixed plate is arranged at the bottom of the support rod, and a vertical light hole is arranged on the fixed plate, and the bottom end of the vertical screw rod passes through the light hole and is placed on the fixed plate. Set the stopper below. 4. The ultrasonic-based slump measuring instrument according to claim 3, characterized in that: an operating handle is provided on the upper end of the vertical screw rod.