Recycled concrete gravel hardness precision detection device
By combining a transmitting probe and a receiving probe with an acoustic wave detector, precise testing of the hardness of recycled concrete aggregates was achieved, solving the problems of difficulty in fixing and low efficiency in existing technologies for testing the hardness of aggregates, and improving testing accuracy and efficiency.
Patent Information
- Application Number
- CN202422862597.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-23
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-23
AI Technical Summary
Existing technologies for testing the hardness of sand and gravel are difficult to standardize, inefficient, and prone to errors.
A dual measurement method is adopted, which uses a transmitting probe and a receiving probe combined with an acoustic wave detector. Automated pressure control is achieved through hydraulic cylinders and electric push rods, and precise measurement is performed by combining an alloy indenter and a measuring ruler.
It improves the accuracy and efficiency of sand and gravel hardness testing, ensures the accuracy and stability of test results, simplifies the operation process, and reduces the need for manual operation.
Smart Images

Figure CN223664448U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sandstone hardness detection field especially relates to a regenerated concrete sandstone hardness precision detection device. BACKGROUND
[0002] The concrete sandstone mainly refers to the sand and stone for preparing the concrete.
[0003] At present, when the sandstone hardness is detected, the sandstone is difficult to be fixed, and the detection efficiency is not high, and the error is easy to occur, and the use is extremely inconvenient.
[0004] Therefore, the existing problems are researched and improved, and the regenerated concrete sandstone hardness precision detection device is provided. UTILITY MODEL CONTENTS
[0005] The utility model discloses a regenerated concrete sandstone hardness precision detection device.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a regenerated concrete sandstone hardness precision detection device, including hardness detection box, the upper end of hardness detection box is provided with fixed shell, installs the sound wave detector on the outer wall of hardness detection box, the front end of hardness detection box is provided with swing door and handle recess, the bottom of fixed shell is installed hydraulic cylinder, the both sides of hydraulic cylinder are provided with hydraulic rod, the bottom of hydraulic rod is installed with the swing axle, the bottom of hydraulic cylinder is installed with the mounting panel, the swing axle is connected with mounting panel, the bottom of mounting panel is installed with alloy pressure head, installs the electric push rod on the inner wall of hardness detection box, one end of electric push rod is connected with clamping plate and clamping block, the inside installation of hardness detection box has launch probe head and receiving probe head, one side of alloy pressure head is provided with measuring scale.
[0007] Further description of the above technical scheme:
[0008] The bottom of the hardness detection box is fixedly connected with supporting blocks, the number of the supporting blocks is four, the fixed shell is integrally connected to the top of the hardness detection box, and the acoustic wave detector is fixedly installed on the outer wall of the hardness detection box.
[0009] As a further description of the above technical solution:
[0010] The inner wall of the hardness detection box is fixedly installed with a measuring scale, the size of the measuring scale is smaller than that of the hardness detection box, the movable door is movably connected to the outer wall of the front end of the hardness detection box, and the handle groove is formed in the outer wall of the movable door.
[0011] As a further description of the above technical solution:
[0012] The hydraulic cylinder and the hydraulic rod are fixedly installed in the fixed shell, the hydraulic cylinder is slidably installed on the two sides of the hydraulic rod, the movable shaft is movably connected to the bottom of the hydraulic rod, the mounting plate is fixedly installed at the bottom of the hydraulic cylinder, and the alloy pressure head is fixedly connected to the bottom of the movable shaft and the mounting plate.
[0013] As a further description of the above technical solution:
[0014] The electric push rod is fixedly installed on the inner wall of the hardness detection box, the number of the electric push rod is two, and the electric push rod is symmetrically installed, the clamping plate is fixedly connected to one end of the electric push rod, the clamping blocks are fixedly connected to the outer wall of the clamping plate, and the concrete gravel is placed between the clamping blocks.
[0015] As a further description of the above technical solution:
[0016] The transmitting probe is fixedly installed in the hardness detection box, the receiving probe is fixedly connected to the inner wall of the hardness detection box, the transmitting probe and the receiving probe are electrically connected with the acoustic wave detector, and the transmitting probe is perpendicular to the electric push rod.
[0017] The utility model has the advantages of the following:
[0018] In the utility model, the hardness of the concrete gravel can be detected more precisely through double measurement. The transmitting probe and the receiving probe installed in the hardness detection box can accurately measure the hardness of the concrete gravel, ensuring the accuracy of the detection results. The design of the movable door and the handle groove makes it easy for the operator to open and close the movable door, facilitating the placement and removal of the concrete gravel samples to be detected.
[0019] The cooperation of the electric push rod and the hydraulic cylinder can realize automatic control of the pressure applied to the concrete gravel, reduces manual operation and improves work efficiency.
[0020] The hardness detection device improves the precision of concrete gravel hardness detection, and through the optimized design of the structure, the operation is more convenient, the detection efficiency is significantly improved, and the stability and durability of the device are also enhanced, and the detection requirements in different environments can be met. BRIEF DESCRIPTION OF DRAWINGS
[0021] Fig. 1 A whole structure schematic view of a regenerated concrete gravel hardness precision detection device is provided for the utility model;
[0022] Fig. 2 An internal schematic view of a regenerated concrete gravel hardness precision detection device is provided for the utility model;
[0023] Fig. 3 A structure schematic view of a transmitting probe of a regenerated concrete gravel hardness precision detection device is provided for the utility model.
[0024] LEGEND:
[0025] 1, hardness detection box; 2, fixed shell; 3, acoustic detector; 4, movable door; 5, handle groove; 6, supporting block; 7, hydraulic cylinder; 8, hydraulic rod; 9, movable shaft; 10, mounting plate; 11, alloy pressure head; 12, electric push rod; 13, clamping plate; 14, clamping block; 15, measuring scale; 16, transmitting probe; 17, receiving probe. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0027] In the description of the utility model, it is necessary to explain that the orientation or positional relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model; the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0028] Referring to Figs. 1-3 The utility model provides a kind of embodiment provided by the utility model: a kind of precision detection device for hardness of recycled concrete sand and stone, including hardness detection box 1, the upper end of the hardness detection box 1 is provided with fixed shell 2, sound wave detector 3 is installed on the outer wall of the hardness detection box 1, the front end of the hardness detection box 1 is provided with swing door 4 and handle recess 5, the bottom of fixed shell 2 is installed with hydraulic cylinder 7, the two sides of hydraulic cylinder 7 are provided with hydraulic rod 8, the bottom of hydraulic rod 8 is installed with movable shaft 9, the bottom of hydraulic cylinder 7 is installed with mounting plate 10, movable shaft 9 is connected with mounting plate 10, alloy pressure head 11 is installed on the bottom of mounting plate 10, electric push rod 12 is installed on the inner wall of the hardness detection box 1, one end of electric push rod 12 is connected with clamping plate 13 and clamping block 14, transmitting probe 16 and receiving probe 17 are installed in the hardness detection box 1, one side of alloy pressure head 11 is provided with measuring scale 15.
[0029] In the utility model, the bottom of the hardness detection box 1 is fixedly connected with support block 6, the number of support block 6 is four, fixed shell 2 is integrally connected at the top of hardness detection box 1, sound wave detector 3 is fixedly installed on the outer wall of hardness detection box 1, by the setting of support block 6, the stability of device when carrying out hardness detection can be ensured, the position of device is prevented from deviating due to vibration in detection process, to affect the accuracy of detection result.
[0030] Further, a measuring scale 15 is fixedly installed on the inner wall of the hardness detection box 1, the size of the measuring scale 15 is smaller than the size of the hardness detection box 1, the movable door 4 is movably connected to the outer wall of the front end of the hardness detection box 1, and the handle groove 5 is arranged on the outer wall of the movable door 4. The opening and closing operation of the movable door 4 is convenient, and the operator can observe and maintain the inside of the hardness detection box 1 during the detection process. In addition, the setting of the movable door 4 can also effectively protect the measuring scale 15 and other detection equipment inside, so as to avoid damage caused by external factors during transportation or storage.
[0031] Further, the hydraulic cylinder 7 and the hydraulic rod 8 are fixedly installed in the inside of the fixed shell 2, the hydraulic cylinder 7 is slidably installed on both sides of the hydraulic rod 8, the movable shaft 9 is movably connected to the bottom of the hydraulic rod 8, the mounting plate 10 is fixedly installed on the bottom of the hydraulic cylinder 7, and the alloy pressure head 11 is fixedly connected to the bottom of the movable shaft 9 and the mounting plate 10. Through the cooperative work of the hydraulic cylinder 7 and the hydraulic rod 8, accurate pressure can be applied to the recycled concrete aggregate sample, so as to accurately measure the hardness. In addition, the design of the movable shaft 9 can keep the alloy pressure head 11 stable during the pressing process, so as to avoid the measurement error caused by uneven pressure. The setting of the mounting plate 10 further enhances the stability and durability of the device, so as to ensure that high-precision measurement results can be obtained during long-term use.
[0032] Further, the electric push rod 12 is fixedly installed on the inner wall of the hardness detection box 1, the number of the electric push rod 12 is two, and the electric push rod 12 is symmetrically installed, the clamping plate 13 is fixedly connected to one end of the electric push rod 12, and the clamping block 14 is fixedly connected to the outer wall of the clamping plate 13. The clamping block 14 is placed with the concrete aggregate, and the clamping plate 13 can accurately clamp and position the sample through the driving of the electric push rod 12. This design not only improves the fixing efficiency of the sample, but also ensures the stability of the sample position during the hardness test, so as to improve the measurement accuracy. In addition, the symmetrical installation mode of the electric push rod 12 makes the force applied to the sample more uniform, further reducing the measurement error.
[0033] In actual application, the hardness detection device can quickly test the hardness of the recycled concrete aggregate sample, has simple operation and low maintenance cost. The compact design of the device occupies small space, and is convenient for flexible deployment in various working environments.
[0034] Further, the transmitting probe 16 is fixedly installed inside the hardness detection box 1, the receiving probe 17 is fixedly connected to the inner wall of the hardness detection box 1, the transmitting probe 16 is electrically connected with the receiving probe 17 and the acoustic wave detector 3, the transmitting probe 16 is perpendicular to the electric push rod 12, and the distance between the transmitting probe 16 and the receiving probe 17 can be adjusted according to the size of the sample, so that acoustic wave detection can be performed on samples of different sizes. The receiving probe 17 can receive and record the propagation time of the acoustic wave in the sample through the acoustic wave signal emitted by the transmitting probe 16, and then the acoustic wave speed of the sample can be calculated. This process is monitored and analyzed in real time by the acoustic wave detector 3, so as to ensure the accuracy and reliability of the data.
[0035] Working principle and use process:
[0036] When the hardness of the recycled concrete gravel needs to be detected, first, the concrete gravel to be measured is placed between the clamping blocks 14. Then, the operator starts the electric push rod 12, so that the clamping plate 13 and the clamping blocks 14 move inward, thereby firmly clamping the concrete gravel in the middle. At this time, the alloy pressure head 11 is driven by the hydraulic cylinder 7, and slowly descends and contacts the surface of the concrete gravel through the cooperation of the hydraulic rod 8 and the movable shaft 9.
[0037] When the alloy pressure head 11 contacts the concrete gravel, the transmitting probe 16 emits acoustic wave signals, which propagate inside the concrete gravel and are received by the receiving probe 17. The acoustic wave detector 3 analyzes the change of the acoustic wave signals between the transmitting probe 16 and the receiving probe 17, thereby calculating the hardness value of the concrete gravel. The measuring scale 15 can be used to assist in measuring the size of the alloy pressure head 11 entering the concrete gravel, so as to ensure the accuracy of the detection result.
[0038] After the detection is completed, the operator can open the hardness detection box 1 through the movable door 4 and take out the detected concrete gravel sample. The whole detection process is simple and fast, and can provide accurate measurement results for the hardness of the recycled concrete gravel, which has important significance for the recycling and quality control of concrete.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A precision testing device for the hardness of recycled concrete aggregate, comprising a hardness testing chamber (1), characterized in that: The upper end of the hardness testing chamber (1) is provided with a fixed outer shell (2). An acoustic wave detector (3) is installed on the outer wall of the hardness testing chamber (1). The front end of the hardness testing chamber (1) is provided with a movable door (4) and a handle groove (5). A hydraulic cylinder (7) is installed at the bottom of the fixed outer shell (2). Hydraulic rods (8) are provided on both sides of the hydraulic cylinder (7). A movable shaft (9) is installed at the bottom of the hydraulic rods (8). An installation plate is installed at the bottom of the hydraulic cylinder (7). 10), the movable shaft (9) is connected to the mounting plate (10), the bottom of the mounting plate (10) is equipped with an alloy indenter (11), the inner wall of the hardness testing box (1) is equipped with an electric push rod (12), one end of the electric push rod (12) is connected to a clamping plate (13) and a clamping block (14), the inside of the hardness testing box (1) is equipped with a transmitting probe (16) and a receiving probe (17), and a measuring ruler (15) is provided on one side of the alloy indenter (11).
2. The precision testing device for the hardness of recycled concrete aggregate according to claim 1, characterized in that: The bottom of the hardness testing box (1) is fixedly connected to a support block (6), and there are four support blocks (6). The fixed outer shell (2) is integrally connected to the top of the hardness testing box (1), and the acoustic wave detector (3) is fixedly installed on the outer wall of the hardness testing box (1).
3. The precision testing device for the hardness of recycled concrete aggregate according to claim 1, characterized in that: A measuring ruler (15) is fixedly installed on the inner wall of the hardness testing box (1). The size of the measuring ruler (15) is smaller than the size of the hardness testing box (1). The movable door (4) is movably connected to the outer wall of the front end of the hardness testing box (1). The handle groove (5) is opened on the outer wall of the movable door (4).
4. The precision testing device for the hardness of recycled concrete aggregate according to claim 1, characterized in that: The hydraulic cylinder (7) and hydraulic rod (8) are fixedly installed inside the fixed housing (2). The hydraulic cylinder (7) is slidably installed on both sides of the hydraulic rod (8). The movable shaft (9) is movably connected to the bottom of the hydraulic rod (8). The mounting plate (10) is fixedly installed at the bottom of the hydraulic cylinder (7). The alloy pressure head (11) is fixedly connected to the bottom of the movable shaft (9) and the mounting plate (10).
5. The precision testing device for the hardness of recycled concrete aggregate according to claim 1, characterized in that: The electric push rod (12) is fixedly installed on the inner wall of the hardness testing box (1). There are two electric push rods (12) installed symmetrically. The clamping plate (13) is fixedly connected to one end of the electric push rod (12). The clamping block (14) is fixedly connected to the outer wall of the clamping plate (13). Concrete sand and gravel are placed between the clamping blocks (14).
6. The precision testing device for the hardness of recycled concrete aggregate according to claim 1, characterized in that: The transmitting probe (16) is fixedly installed inside the hardness testing box (1), and the receiving probe (17) is fixedly connected to the inner wall of the hardness testing box (1). The transmitting probe (16) is electrically connected to the receiving probe (17) and the acoustic wave detector (3). The transmitting probe (16) is perpendicular to the electric push rod (12).