Concrete strength measuring device

Abstract

The utility model relates to the technical field of concrete production, in particular to a concrete strength measuring device which comprises a machine table and a rotary table rotationally arranged above the machine table, a discharging opening is formed in the machine table, a plurality of containing grooves are formed in the rotary table in the circumferential direction, and a door-shaped frame is arranged above the machine table. And pressurizing mechanisms corresponding to the containing grooves are arranged on the door-shaped frame, a supporting plate is movably connected into each containing groove, and a gap exists between the lower surface of each supporting plate and the upper surface of the machine table. According to the utility model, the slidable supporting plate is additionally arranged in the placing groove and is used for supporting the concrete test piece, and the friction between the lower surface of the concrete test piece and the upper surface of the machine table can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production, in particular to a concrete strength measuring device. Background Art

[0002] Concrete strength testing is an indispensable step in the construction process. In the prior art, during the concrete strength testing process, the concrete sample is placed on the test bench, and then pressurized by a pressure plate to test the load at the time of failure. Most concrete measuring devices are provided with a turntable that rotates on the workbench and a placement slot for placing the concrete sample is provided on the turntable. The concrete sample is driven to the bottom of the measuring station for pressurized measurement by the rotation of the turntable, and then the concrete sample is driven to the discharge port provided on the workbench by the continued rotation of the turntable, and then the concrete sample is discharged from the discharge port. However, during the measurement process, when the turntable rotates to drive the concrete sample to move, the lower surface of the concrete sample is in frictional contact with the upper surface of the workbench, resulting in friction resistance, and the workbench surface is easily scratched due to the uneven surface of the concrete sample. Utility Model Content

[0003] The embodiment of the utility model provides a concrete strength measuring device to achieve the technical effect of avoiding frictional contact between a concrete test piece and the upper surface of a machine platform and preventing the upper surface of the machine platform from being scratched.

[0004] One aspect of the implementation of the utility model provides a concrete strength measuring device, including a machine platform and a turntable rotatably arranged above the machine platform, a discharge port is opened on the machine platform, a plurality of placement slots are circumferentially arranged on the turntable, a portal frame is arranged above the machine platform, a pressure mechanism corresponding to the placement slot is arranged on the portal frame, a support plate is movably connected in each placement slot, and there is a gap between the lower surface of the support plate and the upper surface of the machine platform.

[0005] Compared with the prior art, the beneficial effects of the utility model are:

[0006] The utility model adds a slidable support plate in the placement groove, and the support plate is used to support the concrete test piece, so as to avoid friction between the lower surface of the concrete test piece and the upper surface of the machine table.

[0007] Further, the preferred solution adopted by the utility model is:

[0008] A support plate is slidably arranged inside each placement slot, and the support plate can support the concrete test piece to prevent the concrete test piece from contacting the upper surface of the machine table.

[0009] Each placement slot is provided on two opposite side walls thereof, each slot is slidably connected with a support plate, and the other two opposite side walls of the placement slot are provided with sliding grooves, and the side walls of each support plate are provided with sliders adapted to the sliding grooves.

[0010] Through holes are respectively provided on the adjacent sides of the two support plates, so that the support plates can be pushed by means of the through holes to open the discharge port.

[0011] The pressurizing mechanism includes a hydraulic telescopic rod, which is fixed on the portal frame. The telescopic section of the hydraulic telescopic rod passes through the portal frame downward and a mounting block is installed at the end of the telescopic section. A pressure block is arranged at the lower end of the mounting block, and a pressure sensor is arranged between the mounting block and the pressure block.

[0012] A discharge hopper is arranged at the position corresponding to the discharge port below the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute a limitation of the present invention. In the drawings:

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the explosion of the structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the transfer station of the utility model;

[0017] Figure 4 It is a schematic diagram of the position of the support plate in the turntable;

[0018] Figure 5 is a top view of the turntable;

[0019] Figure 6 for Figure 5 AA section view;

[0020] In the figure: machine 1; turntable 2; portal frame 3; hydraulic telescopic rod 4; telescopic section 5; mounting block 6; pressing block 7; placement groove 8; discharge hopper 9; discharge port 10; support plate 11; slide chute 12; slider 13; slot 14. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the implementation mode and the accompanying drawings. Here, the schematic implementation mode of the utility model and its description are used to explain the utility model, but are not used as a limitation of the utility model.

[0022] like Figure 1 , Figure 2 As shown, a concrete strength measuring device is composed of a machine platform 1 and a turntable 2 rotatably arranged above the machine platform 1. A stepping motor for driving the turntable 2 to rotate is installed at the lower end of the machine platform 1.

[0023] A discharge port 10 is provided on the machine platform 1 , and a discharge hopper 9 is fixedly installed at the bottom of the machine platform 1 at a position corresponding to the discharge port 10 , and the discharge hopper 9 is communicated with the discharge port 10 .

[0024] A portal frame 3 is fixedly installed above the machine platform 1, and both ends of the portal frame 3 are fixedly connected to the upper surface of the machine platform 1 respectively; a pressurizing mechanism is installed on the top of the portal frame 3, and the pressurizing mechanism in this embodiment is a hydraulic telescopic rod 4, which is fixedly installed on the portal frame 3, and the telescopic section 5 of the hydraulic telescopic rod 4 passes through the portal frame 3 downward, and then a mounting block 6 is fixedly installed at the end of the telescopic section 5, a pressure block 7 is installed at the lower end of the mounting block 6, and a pressure sensor is installed between the pressure block 7 and the mounting block 6.

[0025] like Figures 3 to 6 As shown, three placement slots 8 are opened on the circumference of the turntable 2, and the placement slots 8 are arranged along the height direction of the turntable 2. When one of the placement slots 8 of the turntable 2 is rotated to above the discharge port 10, the placement slot 8 is connected with the discharge hopper 9 through the discharge port 10. When one of the placement slots 8 on the turntable 2 is rotated to below the portal frame 3, the pressure block 7 on the hydraulic telescopic rod 4 is opposite to the placement slot 8 to ensure that the concrete specimen in the placement slot 8 can be pressurized.

[0026] like Figure 6 As shown, each placement slot 8 is movably connected with a support plate 11, specifically, each placement slot 8 is provided with two support plates 11, and slots 14 are respectively provided on the opposite side walls of each placement slot 8. Each support plate 11 is slidably inserted corresponding to one slot 14, and a slide 12 connected to the slot 14 is respectively provided on the other two opposite side walls of the placement slot 8. A slider 13 adapted to the slide 12 is fixedly connected to the side of each support plate 11 in contact with the slide 12. The support plate 11 realizes the opening and closing of the placement slot 8 through the sliding connection between the slider 13 and the slide 12, and the support plate 11 can ensure the support of the concrete specimen by the support plate 11 through the cooperation between the slider 13 and the slide 12. In this embodiment, there is a gap between the lower surface of the support plate 11 in each placement slot 8 and the upper surface of the machine 1 to prevent contact and friction between the support plate 11 and the machine 1. In this embodiment, in order to facilitate sliding of the two support plates 11 , through holes are respectively opened on the adjacent sides of the support plates 11 , and the support plates 11 are slid through the through holes to control the opening and closing of the placement slots 8 .

[0027] When the device is used, the two support plates 11 in each placement slot 8 slide to the middle position respectively, so that the edges of the two support plates 11 close to each other close the placement slot 8, and then the concrete specimen to be tested is placed in each placement slot 8, and the two support plates 11 support the concrete specimen. The stepper motor is started, and the stepper motor drives the turntable 2 to rotate. When one of the placement slots 8 on the turntable 2 is rotated to the bottom of the pressure block 7 of the hydraulic telescopic rod 1, the telescopic section 5 of the hydraulic telescopic rod 4 drives the pressure block 7 to apply pressure to the surface of the concrete specimen. The applied pressure is detected by a pressure sensor to detect whether the concrete specimen can withstand the predetermined pressure. After the pressure value reaches the predetermined value, if the concrete specimen does not break, it means it is qualified, otherwise it breaks, it means it is unqualified.

[0028] After the telescopic section 5 of the hydraulic telescopic rod 4 drives the pressing block 7 to complete the test of the concrete specimen, the telescopic section 5 moves up, and at the same time, the stepper motor drives the turntable 2 to rotate a certain angle (in this embodiment, three placement slots are evenly arranged on the turntable, and the positions of two adjacent placement slots are switched, and the turntable rotates 120 degrees), ensuring that the placement slot 8 where the tested concrete specimen is located is rotated to the top of the discharge port 10, and at the same time, the placement slot 8 where the next concrete specimen to be tested is located is rotated to the bottom of the pressing block 7, and the hydraulic telescopic rod 4 drives the pressing block 7 to continue the test. At the same time, the operator slides two support plates 11 to allow the tested concrete specimen to enter the discharge hopper 9 through the discharge port 10, and is discharged through the discharge hopper 9, and then slides the two support plates 11 to close the placement slot 8, and puts in a new concrete specimen to be tested; the concrete specimen is repeatedly tested in this way.

[0029] By providing a plurality of placement slots 8 for placing concrete specimens, the device can pre-place the next concrete specimen to be tested into the next placement slot 8, and automatically bring the next concrete specimen to be tested to the measuring station, that is, directly below the pressing block, driven by the turntable 2, to achieve continuous testing; at the same time, the measured concrete specimen is brought to the discharging station, that is, directly above the discharging port 10. Since there is a gap between the lower surface of the support plate 11 and the upper surface of the machine platform, the support plate 11 supports the concrete specimen and can avoid contact and friction between the concrete specimen and the support plate 11 and the upper surface of the machine platform 1. In addition, by sliding the support plate 11, the measured concrete specimen can also be quickly passed through the discharging port 10 into the discharging hopper 9.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A concrete strength measuring device, comprising a machine platform and a turntable rotatably arranged above the machine platform, a discharge port is provided on the machine platform, a plurality of placement slots are circumferentially arranged on the turntable, a portal frame is provided above the machine platform, and a pressure mechanism corresponding to the placement slots is provided on the portal frame, characterized in that: A support plate is movably connected in each placement groove, and there is a gap between the lower surface of the support plate and the upper surface of the machine platform.

2. The concrete strength measuring device according to claim 1, characterized in that: A supporting plate is slidably arranged inside each placement slot.

3. The concrete strength measuring device according to claim 2, characterized in that: Each placement slot is provided on two opposite side walls thereof, each slot is slidably connected with a support plate, and the other two opposite side walls of the placement slot are provided with sliding grooves, and the side walls of each support plate are provided with sliders adapted to the sliding grooves.

4. The concrete strength measuring device according to claim 3, characterized in that: Through holes are respectively provided on the adjacent sides of the two support plates.

5. The concrete strength measuring device according to claim 1, characterized in that: The pressurizing mechanism includes a hydraulic telescopic rod, which is fixed on the portal frame. The telescopic section of the hydraulic telescopic rod passes through the portal frame downward and a mounting block is installed at the end of the telescopic section. A pressure block is arranged at the lower end of the mounting block, and a pressure sensor is arranged between the mounting block and the pressure block.

6. The concrete strength measuring device according to claim 1, characterized in that: A discharge hopper is arranged at the position corresponding to the discharge port below the machine.

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