CN208012952U - A kind of detecting device for pressure strength - Google Patents

Abstract

The utility model discloses a compressive strength detection device, which comprises a first clamping block, a second clamping block, a driving mechanism, a guide rail and a base. A guide rail is set on the base, and the clamping block 1 and the clamping block 2 are respectively installed on opposite sides of the guide rail. The driving mechanism drives at least one of the clamping block 1 and the clamping block 2 to slide on the guide rail, so that the clamping block 1 and the clamping block 2 Hold the concrete block to be tested. The clamping block 1 and the clamping block 2 are equipped with pressure sensors, and the pressure sensors detect the highest pressure resistance when the clamping block 1 and the clamping block 2 crush the concrete block to be tested, thereby calculating the compressive strength of the concrete block to be tested. The utility model can make the actual product convenient to carry and reduce the error generated when the concrete compressive strength is detected. Compared with the existing detection device, the utility model has higher detection accuracy, more convenient carrying and wider practicability.

Description

A compressive strength testing device

technical field

The utility model relates to a detection device, in particular to a compressive strength detection device.

Background technique

The detection of concrete compressive strength is very important for the construction industry, especially for the key parts and hidden parts of the building. These parts affect the quality of the entire building, so the detection of compressive strength is essential. At present, the methods for on-site testing of concrete strength mainly include: rebound method, core drilling method, and traditional testing machine method. The rebound method is simple and easy to operate, but the basic premise for testing the strength of structural concrete is that the internal and external quality of the tested structure or component concrete is basically the same, and there are obvious differences in the quality of the outer layer and the inner layer, or the concrete with internal quality defects The structure is not applicable, and it is easy to cause poor errors. The core drilling method is more complicated than the springback method, and is affected by the local quality. The core sample processing quality directly affects the strength structure of the measured component, but it is more intuitive. The traditional testing machine method needs to carry out compression tests on concrete blocks with a side length of 150mm, and the data is relatively accurate. However, due to the large size of the instrument, it cannot be brought into the construction site, which has certain limitations. Therefore, it is necessary to develop a compressive strength detection device that is easy to operate, convenient to carry, and fast to detect, so as to provide a reliable guarantee for scientific research and engineering detection.

Utility model content

The purpose of the utility model is to provide a small volume, light weight, high compressive strength detection accuracy, no damage to the overall structure of the concrete, and a portable detection device, that is, a compressive strength detection device.

The utility model is realized by adopting the following technical solutions: clamping block 1, clamping block 2, driving mechanism, base, pressure sensor, at least one guide rail; the guide rail is arranged on the base, and clamping block 1 and clamping block 2 are respectively installed on opposite sides of the guide rail , the driving mechanism drives at least one of clamp block 1 and clamp block 2 to slide on the guide rail, so that clamp block 1 and clamp block 2 clamp the concrete block to be tested on the guide rail; the pressure sensor is arranged on clamp block 1 or clamp block 2 On the surface facing the concrete block to be tested, the pressure sensor detects in real time the real-time pressure of the concrete block to be tested clamped by clamping block 1 and clamping block 2 when the driving mechanism provides a variable driving force.

As a further improvement of the above solution, positioning plates are respectively provided on opposite sides of the base, and the positioning plates limit the concrete blocks to be tested on the guide rails.

Further, each positioning plate is fixed on the base through an elastic piece.

As a further improvement of the above solution, the driving mechanism is embedded on the base.

As a further improvement of the above solution, a display is provided on the base, the display is electrically connected to the pressure sensor, and the display displays the data measured by the pressure sensor.

As a further improvement of the above solution, a handle is provided at the opposite end of the base.

Further, the handle communicates with the inside of the base.

Further, the handle is provided with a button 1 and a button 2, and the button 1 and the button 2 are connected in series with the driving mechanism, and serve as a driving switch of the driving mechanism to respectively control the power on and off of the driving mechanism.

Furthermore, a placement groove is provided inside the handle, and a power supply is installed in the placement groove, and the power supply is electrically connected to the driving mechanism.

As a further improvement of the above solution, the pressure sensor is a thin film pressure sensor.

The compressive strength detecting device of the present utility model, by arranging pressure sensors on the first clamping block and the second clamping block, detects the pressure on the concrete block to be tested when the first clamping block and the second clamping block crush the concrete block to be measured through the pressure sensor, In this way, the compressive strength of the concrete block to be tested can be calculated; the fixing of the object to be tested can be made more firm by setting the fixing plate; the data obtained during the measurement can be fed back more accurately by setting the pressure display screen and the compressive strength display screen, which is more convenient for the measurement personnel record and observation; by setting a detachable power supply, the device is more convenient to carry and replace energy. Compared with the prior art, the compressive strength detection device of the utility model can conveniently and quickly detect the compressive strength of the concrete on the construction site, and make timely suggestions for improvement of the concrete blocks to be tested, and has the advantages of convenient portability, high detection accuracy, and practical wide advantages.

Description of drawings

Fig. 1 is a structural schematic diagram of a compressive strength testing device of the present invention.

FIG. 2 is a side view of FIG. 1 .

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The compressive strength detection device provided by the utility model is a device that is small in size, easy to carry, and is convenient for fixing the object to be tested. At the same time, the compressive strength detection device has high measurement accuracy, which better provides reliable guarantee for engineering detection. .

Please refer to FIG. 1 and FIG. 2 , the compressive strength testing device of this embodiment includes clamping block one 1 , clamping block two 2 , a driving mechanism 8 , and a base 10 . The base 10 can be preferably made of good quality and light weight materials, which can not only meet the requirements of material hardness, but also be convenient to carry. The base 10 is provided with at least one guide rail 7, and the driving mechanism 8 drives the clamping block one 1 and the clamping block two 2 to be installed on opposite sides of the guide rail 7 respectively, so that at least one of the clamping block one 1 and the clamping block two 2 can be driven. Slide on the guide rail 7, so that the clamping block one 1 and the clamping block two 2 can clamp the concrete block to be measured.

In order to make the clamping block 2 more firm and achieve the detection effect, the clamping block 2 is integrally formed on one end of the base 10. This design can effectively prevent the clamping block 2 from being unable to withstand the pressure exerted by the clamping block 1 on the concrete block to be tested. fractured by the applied pressure. The driving mechanism 8 is installed on the base 10 in a mosaic type, which reduces the occupied space. In order to obtain experimental data better, a pressure sensor 4 is provided on clamp block 1 and clamp block 2. In order to achieve the measurement effect, the pressure sensor 4 can be a sheet pressure sensor, and the sheet pressure sensor can be tiled on clamp block 1. 1. On the surface of the clamping block 2 facing the concrete block to be tested, the sheet pressure sensor can effectively prevent the damage of the sensor due to excessive pressure. During the measurement, the pressure sensor 4 detects in real time the real-time pressure of the concrete block to be tested clamped by clamp block one 1 and clamp block two 2 when the driving mechanism 8 provides a variable driving force.

In order to better locate the concrete block to be measured on the guide rail 7, to prevent the concrete block to be measured from splashing when it is clamped and pulverized by clamp block one 1 and clamp block two 2, the opposite sides of the base 10 can be respectively arranged The positioning plate 3, the positioning plate 3 limits the concrete block to be tested on the guide rail 7. Each positioning plate 3 can be fixed on the base 10 by an elastic piece, therefore, when the size of the concrete block to be measured is greater than the base 10, the two positioning plates 3 can be indirectly stretched on the concrete to be measured by stretching the elastic piece The two sides of the block, so that the concrete block to be tested can be fixed from the corresponding two sides of the base 10.

In this embodiment, a telescopic board is provided on both sides of the base 10 , and a part of the telescopic board located outside the base 10 can be controlled to expand and contract back and forth when electrified. One end of the expansion plate is connected to the driving mechanism 8, which is electrically connected to the expansion plate; the opposite end of the expansion plate is provided with a positioning plate 3 for fixing the concrete block to be tested. The telescopic plate can expand and contract in the horizontal direction, and the positioning plate 3 can better fix the object to be measured and prevent the object to be measured from being offset due to the extrusion of the clamp block 1 during measurement. At the same time, the expansion plate passes through the outer wall of the base 10 and is installed on the driving mechanism 8, and the back and forth expansion and contraction of the expansion plate is controlled by the driving mechanism 8, thereby further controlling the positioning plate 3 to clamp or loosen the concrete block to be tested. When clamping block one 1 is clamped towards clamping block two 2, the telescopic plate is also driven by the driving mechanism 8 to shrink inwardly, and at the same time, the distance between the two positioning plates 3 is reduced, thereby clamping the concrete to be tested piece. Similarly, when the clamping block 1 is loosened, the telescopic plate is also extended outward, driving the positioning plate 3 to release the concrete block to be tested. However, during detection, the positioning plate 3 does not exert pressure on the object to be tested, but only plays a role of fixing.

A display 5 is provided on the base 10 , and the display 5 is electrically connected with the pressure sensor 4 . In order to obtain data better, a calculator is also provided inside the base 10, and the calculator can calculate the compressive strength of the concrete block to be measured when the compression area is constant, and the calculator is connected with the display 5, the pressure sensor 4. Realize data intercommunication through connection. Due to the measurement standard, the area to be measured of the concrete block to be measured is generally a fixed value during measurement, so there is no need to change the value of the area to be measured inside the calculator, only the pressure needs to be measured. During the measurement, the pressure sensor 4 feeds back data to the display 5 in real time, which is convenient for the inspection personnel to observe and record. For better feedback of measurement data, the display 5 is divided into two display fields. One is a display area 51 for displaying the pressure value measured by the pressure sensor 4 during measurement. The other is display area 2 52, which is used to display the final compressive strength obtained during measurement. Such a design is more convenient for inspectors to study the data, making the data more accurate.

There is also a handle 6 at one end of the base 10, the handle 6 can be integrally formed on the base 10, and communicate with the inside of the base 10 for laying electric wires. Button 1 61 and button 2 62 are arranged on the grip 6, and button 1 61 and button 2 62 are connected in series with the drive mechanism 8, and are used as drive switches of the drive mechanism 8 to control the power-on and power-off of the drive mechanism 8 respectively. When the button one 61 is pressed, the driving mechanism 8 is energized and starts to work, the clamping block one 1 and the telescopic plate shrink inwardly, and the telescopic plate drives the fixed plate 3 to shrink inwardly, when the fixed plate 3 cannot touch the concrete block to be tested When continuing to shrink again, the fixed plate 3 is fixed and completed. The clamp block one 1 continues to move under the driving of the driving mechanism 8 until the object to be tested is broken, and the measured data is displayed on the display 5 . After the measurement is completed, press the button 2 62, and each component returns to its original position, and the drive mechanism 8 is powered off, waiting for the next measurement. The inside of the handle 6 is also provided with a placement slot 9, and the inside of the placement slot 9 is detachably provided with a power supply, and the power supply is electrically connected with the drive mechanism 8 to provide energy for the drive mechanism 8 to work.

The compressive strength detection device of the utility model can accurately detect the compressive strength of concrete, and can provide effective and reliable guarantee for engineering. Compared with the detection device of the traditional cabinet size, the device is small in size, light in weight, and convenient for detection. Personnel carry, record and improve the test object in time. The compressive strength detection device has the advantages of convenient portability, high detection precision and wide practicability.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A compressive strength detection device is characterized in that, comprises clamp block one (1), clamp block two (2), driving mechanism (8), base (10), pressure sensor (4), at least one guide rail ( 7); the guide rail (7) is arranged on the base (10), and the clamp block one (1) and the clamp block two (2) are installed on opposite sides of the guide rail (7) respectively, and the drive mechanism (8) drives the clamp block one ( 1) and at least one of clamp block two (2) slides on the guide rail (7), so that clamp block one (1) and clamp block two (2) clamp the concrete block to be measured on the guide rail (7); The sensor (4) is arranged on the surface of clamp block one (1) or clamp block two (2) facing the concrete block to be tested, and the pressure sensor (4) detects in real time that the concrete block to be measured is provided by the drive mechanism (8). When the driving force is variable, the real-time pressure clamped by the first clamp (1) and the second clamp (2). 2. The compressive strength detection device according to claim 1, characterized in that: the opposite sides of the base (10) are respectively provided with a positioning plate (3), and the positioning plate (3) limits the position of the concrete block to be tested. on the rail (7). 3. The compressive strength testing device according to claim 2, characterized in that each positioning plate (3) is fixed on the base (10) by an elastic piece. 4. The compressive strength detection device according to claim 1, characterized in that: the driving mechanism (8) is installed on the base (10) in an embedded manner. 5. The compressive strength detection device according to claim 1, characterized in that: the base (10) is provided with a display (5), the display (5) is electrically connected to the pressure sensor (4), and the display (5) displays The data measured by the pressure sensor (4). 6. The compressive strength detection device according to claim 1, characterized in that: a handle (6) is provided at the opposite end of the base (10). 7. The compressive strength testing device according to claim 6, characterized in that the handle (6) communicates with the inside of the base (10). 8. The compressive strength detection device according to claim 6, characterized in that: the handle (6) is provided with button one (61), button two (62), button one (61), button two (62) It is connected in series with the driving mechanism (8) and used as a driving switch of the driving mechanism (8) to respectively control the power on and off of the driving mechanism (8). 9. The compressive strength detection device as claimed in claim 6, characterized in that: the inside of the handle (6) is provided with a placement groove (9), and a power supply is installed in the placement groove (9), and the power supply and the drive mechanism ( 8) Electrical connection. 10. The compressive strength detection device according to claim 1, characterized in that the pressure sensor (4) is a thin film pressure sensor.