A sand and gravel aggregate quality inspection device

Abstract

The utility model discloses a kind of sandstone aggregate quality inspection equipment, belong to sandstone aggregate technical field, to solve the broken sandstone is often scattered in equipment inside after completing pressure crushing detection in prior art, cleaning work is cumbersome and time-consuming. Including detection box, sliding detection frame and pressing plate, the front of detection box is hinged with door panel, one side is equipped with visual window;The upper surface of detection box is vertically installed with hydraulic cylinder, the telescopic end of hydraulic cylinder is fixedly connected with pressing plate, pressing plate is suspended in the inside of detection box, sliding detection frame is set below pressing plate, and the bottom of sliding detection frame is movably connected with moving baseplate. The sandstone aggregate quality inspection equipment, the cumbersome step of manual cleaning is saved, the detection efficiency is significantly improved, the design that sliding detection frame can overturn makes that broken material cleaning becomes simple and fast, operator only needs to pull and push block to easily pour out broken material, reduces cleaning time and labor intensity.

Description

Technical Field

[0001] This utility model belongs to the field of sand and gravel aggregate technology, specifically relating to a sand and gravel aggregate quality inspection device. Background Technology

[0002] In construction engineering, road paving, and various infrastructure projects, sand and gravel aggregates serve as core basic materials, and their quality directly affects the stability, durability, and overall safety of engineering structures. Therefore, rigorous quality inspection of sand and gravel aggregates is an indispensable and crucial step in ensuring project quality. Among these methods, pressure crushing testing, as an important means of assessing the compressive strength and load-bearing capacity of sand and gravel aggregates, is widely used in the quality control system for sand and gravel aggregates. Traditional sand and gravel aggregate pressure crushing testing equipment often employs an open design, meaning that during the testing process, the sand and gravel sample is subjected to pressure in an exposed environment until it breaks. While this design is simple to operate, it poses significant safety hazards. Under high pressure, the sand and gravel sample is prone to splashing during crushing, posing a direct risk of bodily injury to operators. This is especially true when handling large-diameter or high-hardness sand and gravel, where splashed fragments can cause serious accidents. After the pressure crushing test, the broken sand and gravel often scatters inside the equipment, making cleanup tedious and time-consuming. Utility Model Content

[0003] (1) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sand and gravel aggregate quality inspection device, which aims to solve the problem that after the pressure crushing test is completed, the crushed sand and gravel often scatter inside the equipment, making the cleaning work cumbersome and time-consuming.

[0005] (2) Technical solution

[0006] To address the aforementioned technical problems, this utility model provides a sand and gravel aggregate quality inspection device, comprising a testing box, a sliding testing frame, and a pressure plate. The testing box has a hinged door panel at the front and a viewing window on one side. A hydraulic cylinder is vertically mounted through the upper surface of the testing box, and the extension end of the hydraulic cylinder is fixedly connected to the pressure plate. The pressure plate is suspended inside the testing box. The sliding testing frame is positioned below the pressure plate, and a movable base plate is movably connected to its bottom. A slider protrudes from the bottom of the movable base plate, and a horizontal moving groove is formed on the bottom surface of the testing box. The slider is slidably connected to the moving groove. This eliminates the tedious manual cleaning steps, significantly improving testing efficiency. The flip-up design of the sliding testing frame makes cleaning the aggregate simple and quick; operators only need to pull the lever to easily empty the aggregate, reducing cleaning time and labor intensity.

[0007] Preferably, a drive screw is horizontally rotatably mounted inside the movable groove, and a threaded hole is provided through the inside of the slider, with the drive screw threadedly matched to the threaded hole.

[0008] Preferably, an inner sliding groove is horizontally formed on the side wall of the movable base plate, and a toggle block is slidably installed in the inner sliding groove.

[0009] Preferably, a spring is fixedly connected to the side wall of the actuating block, and the other end of the spring is fixedly connected to the inner wall of the inner groove.

[0010] Preferably, a locking block is fixedly connected to the upper surface of the actuating block, and the locking block has an L-shaped structure.

[0011] Preferably, the sliding detection frame has an internal mounting groove, and a mating block is fixedly installed in the mounting groove, with the locking block and the mating block being adapted to and engaged.

[0012] Preferably, a motor is fixedly installed on the side wall of the testing box, and the motor is connected to a drive screw.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the closed design of the door panel and the detection box effectively isolates the sand and gravel aggregate from splashing during the pressure crushing process, greatly reducing the risk of injury to operators and providing safety for on-site operations. After the test is completed, the motor-driven screw drives the moving base plate and sliding detection frame to automatically move out of the detection box, eliminating the tedious steps of manual cleaning and significantly improving the testing efficiency. The flip-up design of the sliding detection frame makes the cleaning of the crushed material simple and quick. Operators only need to pull the lever to easily pour out the crushed material, reducing cleaning time and labor intensity. The design of the equipment takes into account the convenience of operators. The entire testing process can be completed through simple control, reducing the difficulty of operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the sliding detection box moving out of its state.

[0018] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the connection structure between the sliding detection frame and the moving base plate.

[0020] The markings in the attached diagram are as follows: 1. Detection box; 2. Pressure plate; 3. Hydraulic cylinder; 4. Moving groove; 5. Drive screw; 6. Moving base plate; 7. Threaded hole; 8. Sliding detection frame; 9. Slider; 10. Actuating block; 11. Spring; 12. Inner sliding groove; 13. Locking block; 14. Mating block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This specific embodiment is a sand and gravel aggregate quality inspection device, the structural diagram of which is shown below. Figure 1 As shown, the test box includes a test box 1, a sliding test frame 8, and a pressure plate 2. A door panel is hinged to the front of the test box 1, and a viewing window is provided on one side. A hydraulic cylinder 3 is vertically installed through the upper surface of the test box 1. The extension and retraction end of the hydraulic cylinder 3 is fixedly connected to the pressure plate 2. The pressure plate 2 is suspended inside the test box 1. The sliding test frame 8 is located below the pressure plate 2. A movable base plate 6 is movably connected to the bottom of the sliding test frame 8. A motor is fixedly installed on the side wall of the test box 1, and the motor is connected to the drive screw 5.

[0023] Reference Figure 2 , Figure 3 A slider 9 protrudes from the bottom of the movable base plate 6, and a horizontal moving groove 4 is formed on the bottom surface of the detection box 1. The slider 9 is slidably connected to the moving groove 4. A drive screw 5 is horizontally rotatably mounted inside the moving groove 4, and a threaded hole 7 is formed through the inside of the slider 9. The drive screw 5 is threadedly fitted into the threaded hole 7. An inner sliding groove 12 is horizontally formed on the side wall of the movable base plate 6, and a toggle block 10 is slidably mounted inside the inner sliding groove 12.

[0024] Reference Figure 4 A spring 11 is fixedly connected to the side wall of the actuating block 10, and the other end of the spring 11 is fixedly connected to the inner wall of the inner sliding groove 12. A locking block 13 with an L-shaped structure is fixedly connected to the upper surface of the actuating block 10. The sliding detection frame 8 has an installation groove inside, and a mating block 14 is fixedly installed in the installation groove. The locking block 13 and the mating block 14 are adapted to and engaged.

[0025] Working Principle: Open the front door of the testing box 1, place the sand and gravel aggregate to be tested into the sliding testing frame 8, and then close the door to ensure a sealed testing environment. At this time, the pressure plate 2 is suspended above the sliding testing frame 8, without applying pressure to the sand and gravel aggregate. Start the hydraulic cylinder 3; the telescopic end of the hydraulic cylinder 3 moves the pressure plate 2 downwards, applying pressure to the sand and gravel aggregate inside the sliding testing frame 8. As the pressure increases, the sand and gravel aggregate is gradually crushed until the preset pressure value is reached or the sand and gravel aggregate is completely crushed. During the testing process, the operator can observe the crushing condition of the sand and gravel aggregate through the viewing window. After the pressure test is completed, start the motor, which drives the drive screw 5 to rotate. Since the drive screw 5 is threadedly matched with the slider 9 at the bottom of the movable base plate 6, and the slider 9 is slidably connected to the moving groove 4 at the bottom of the detection box 1, the rotation of the drive screw 5 will drive the movable base plate 6 and the sliding detection frame 8 to move horizontally along the moving groove 4 until the sliding detection frame 8 moves out of the detection box 1. After the sliding detection frame 8 moves out of the detection box 1, the actuating block 10 is pulled, the actuating block 10 compresses the spring 11, and the actuating block 10 drives the locking block 13 to leave the mating block 14, so that the sliding detection frame 8 can be flipped with the movable base plate 6 as the support point to pour out the internal crushed material. The operator can easily clean the crushed sand and gravel aggregate from the sliding detection frame 8. Then, after flipping the sliding detection frame 8 back to its original position and locking it, the movable base plate 6 and the sliding detection frame 8 are reset to the detection box 1 by reversing the operation of the motor, ready for the next detection.

[0026] The pressure sensor built into the hydraulic cylinder 3 (using the principle of resistance strain gauge, not shown in the figure) starts to work, monitoring the pressure applied by the extension end of the hydraulic cylinder 3 in real time. The pressure sensor converts the detected pressure signal into an electrical signal, which is then amplified by a signal amplifier, filtered by a filter, and transmitted to an analog-to-digital converter (ADC). The ADC converts the analog electrical signal into a digital signal and sends it to the control system or display terminal of the equipment via a data line or wireless transmission. The extension end of the hydraulic cylinder drives the pressure plate 2 to move downward, applying pressure to the sand and gravel aggregate in the sliding detection frame 8.

[0027] As the pressure increases, the sand and gravel aggregates are gradually crushed, and the pressure sensor continuously monitors and transmits the pressure value to the display terminal.

[0028] The display terminal (such as an LCD screen or touch screen) displays the current pressure value in real time. Operators can observe the crushing of sand and gravel aggregates through a viewing window and monitor changes in pressure value simultaneously. When the pressure reaches the preset pressure value or the sand and gravel aggregates are completely crushed, hydraulic cylinder 3 stops pressurizing, records the pressure value at this time as the test result, and can save or print the test report as needed.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sand and gravel aggregate quality inspection device, comprising a testing box (1), a sliding testing frame (8), and a pressure plate (2), characterized in that, The front of the testing box (1) is hinged with a door panel, and a viewing window is provided on one side; A hydraulic cylinder (3) is vertically installed through the upper surface of the test box (1). A pressure plate (2) is fixedly connected to the telescopic end of the hydraulic cylinder (3). The pressure plate (2) is suspended inside the test box (1). The sliding test frame (8) is located below the pressure plate (2). A movable base plate (6) is movably connected to the bottom of the sliding test frame (8). The bottom of the movable base plate (6) is provided with a slider (9), and the bottom surface of the detection box (1) is provided with a horizontal moving groove (4), and the slider (9) is slidably connected to the moving groove (4).

2. The sand and gravel aggregate quality inspection equipment according to claim 1, characterized in that, The moving groove (4) is horizontally rotatably mounted with a drive screw (5), and the slider (9) has a threaded hole (7) through it. The drive screw (5) is threadedly matched with the threaded hole (7).

3. The sand and gravel aggregate quality inspection equipment according to claim 1, characterized in that, The movable base plate (6) has a horizontally opened inner sliding groove (12) on its side wall, and a toggle block (10) is slidably installed in the inner sliding groove (12).

4. The sand and gravel aggregate quality inspection equipment according to claim 3, characterized in that, A spring (11) is fixedly connected to the side wall of the actuating block (10), and the spring (11) is horizontally arranged with its other end fixedly connected to the inner wall of the inner slide groove (12).

5. The sand and gravel aggregate quality inspection equipment according to claim 4, characterized in that, The upper surface of the actuating block (10) is fixedly connected to a locking block (13), which is an L-shaped structure.

6. The sand and gravel aggregate quality inspection equipment according to claim 5, characterized in that, The sliding detection frame (8) has an installation groove inside, and a mating block (14) is fixedly installed in the installation groove. The locking block (13) and the mating block (14) are adapted to be locked together.

7. The sand and gravel aggregate quality inspection equipment according to claim 1, characterized in that, A motor is fixedly installed on the side wall of the testing box (1), and the motor is connected to the drive screw (5).

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