A concrete quality testing device for water conservancy projects

Abstract

This invention discloses a concrete quality testing device for hydraulic engineering projects, relating to the field of concrete testing technology. It includes a testing frame, with a driving cylinder fixedly connected to the upper surface of the frame, and a testing plate for pressing and testing concrete made from new materials fixedly connected to the lower output end of the driving cylinder. In this device, when the driving disc moves the clamping frame inward to clamp the concrete block, the air supply plate squeezes into the auxiliary barrel, blowing gas from the auxiliary barrel through a connecting pipe towards the concrete block placement area. The direction of the connecting pipe ensures that the blown gas directly acts on the surface and surrounding area of ​​the concrete block, effectively removing dust, debris, and other impurities adhering to the concrete block surface. This prevents these impurities from affecting the accuracy of the test data during subsequent pressing and testing, achieving simultaneous clamping and cleaning operations and improving the efficiency and effectiveness of pre-treatment before testing.

Description

Technical Field

[0001] This invention relates to the field of concrete testing technology, specifically to a device for testing the quality of concrete in water conservancy projects. Background Technology

[0002] New material concrete is a type of concrete composed of multiple novel materials. Its application in water conservancy projects has placed higher demands on quality testing. Traditional concrete quality testing devices often have some shortcomings when testing this type of new material concrete. For example, if the clamping force is improper or the clamping position is inaccurate when clamping and fixing the concrete block, the concrete block may shift during the testing process, affecting the accuracy of the test data.

[0003] To address the aforementioned issues, existing technology 1 (publication number CN219369755U, publication date 2023-07-18) discloses a concrete fixing mechanism for concrete quality testing, relating to the field of concrete quality testing. The mechanism includes a base with a base plate fixedly installed at its bottom; and a clamping assembly mounted on the base for clamping the concrete to be tested. The clamping assembly includes a bidirectional threaded rod rotatably mounted on the bottom of the base. A rotating motor is fixedly installed at the bottom of the base, and the output end of the rotating motor is fixedly connected to one end of the bidirectional threaded rod. Two connecting plates are symmetrically threaded onto the outer surface of the bidirectional threaded rod. By configuring the clamping assembly, concrete blocks of different sizes can be clamped on the base, avoiding instability when clamping concrete blocks of different sizes, which could lead to movement during testing and affect the testing results, thus facilitating user convenience.

[0004] Existing technology 2 (announcement number CN222419771U, announcement date 2025-01-28) discloses a concrete fixing mechanism for concrete quality testing, including a base frame. Multiple sets of connecting columns are fixedly installed on both sides of the base frame. A support plate is fixedly installed at the top of each connecting column. A quality testing mechanism is located at the bottom of the support plate. Driving components are installed on both sides inside the base frame. A collection structure is located outside the driving components and inside the base frame. After the quality testing of the concrete block is completed, the crushed concrete block can be moved by pulling a pull plate. Once the block moves to the clamping component, a brush below the clamping component prevents the block from moving further. As a result, the pull plate is pulled, and the concrete block falls into the cavity and is collected. The collection structure's drawer can then be pulled out to organize the crushed concrete, facilitating unified processing of the concrete blocks.

[0005] Although existing technologies have made improvements in the clamping and fixing of concrete blocks and the collection of crushed stone after testing, there are still shortcomings: during the clamping process, dust, debris and other impurities are easily attached to the surface of the concrete block. If these impurities are not cleaned in time, they will affect the uniformity of pressure transmission in the subsequent pressing test, and may even cause the test plate to not be in close contact with the surface of the concrete block, thus causing deviations in the test data.

[0006] Therefore, we propose a concrete quality testing device for water conservancy projects to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a concrete quality testing device for water conservancy projects, in order to solve the problem mentioned in the background art that in the current market, during the clamping process, dust, debris and other impurities are easily attached to the surface of the concrete block. If these impurities are not cleaned in time, they will affect the uniformity of pressure transmission in the subsequent pressing test, and may even cause the test plate to not be in close contact with the surface of the concrete block, thus causing deviations in the test data.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a concrete quality testing device for water conservancy projects, comprising a testing frame, a driving cylinder fixedly connected to the upper surface of the testing frame, and a testing plate for pressing and testing concrete made of new materials fixedly connected to the lower output end of the driving cylinder; telescopic cylinders fixedly connected to both the left and right sides of the upper surface of the testing frame, and a clamping mechanism provided at the output end of the telescopic cylinder; the clamping mechanism clamps the concrete to be tested by moving the position of the clamping frame contained therein; an air supply mechanism is also provided at the front of the clamping frame; the air supply mechanism blows air onto the concrete block to be tested synchronously with the operation of the clamping operation to avoid impurities adhering and affecting the testing effect.

[0009] Preferably, the clamping mechanism includes a drive plate, which is fixedly connected to the output end of the telescopic cylinder, and a clamping frame is fixedly connected to the lower side of the drive plate. The two sets of clamping frames are arranged facing each other, and the concrete block is clamped by the mutual approach of the two sets of clamping frames.

[0010] Preferably, the gas supply mechanism includes a fixed barrel, which is fixedly connected to the upper surface of the detection frame and located inside the drive plate. An auxiliary barrel is fixedly connected to the side of the fixed barrel near the drive plate, and the auxiliary barrel has a hollow internal structure.

[0011] Preferably, an air supply plate is slidably connected to the inner side of the auxiliary barrel, and the side of the air supply plate contacts the inner wall of the auxiliary barrel to form a sealed state. A connecting rod is fixedly connected to one side of the air supply plate, and the connecting rod extends through to the outer side of the auxiliary barrel and is fixedly connected to the drive plate bracket.

[0012] Preferably, a connecting pipe is provided through the other end of the auxiliary bucket, and the connecting pipe is positioned towards the side where the concrete block is placed. The air supply plate moves inside the auxiliary bucket to compress the gas inside the auxiliary bucket, thereby realizing the function of air supply and ash blowing.

[0013] Preferably, an adjusting plate is nested inside the fixed barrel, and the side of the adjusting plate is in contact with the inner wall of the fixed barrel. The adjusting plate has annular array of exhaust holes, and a cavity is formed between the adjusting plate and the fixed barrel. The gas stored in the cavity is discharged outward through the exhaust holes.

[0014] Preferably, a positioning sleeve is fixedly connected to the inner side of the adjusting disc, and the positioning sleeve extends through to the outer side of the fixed barrel, and a positioning twist rod is threadedly connected to the inner side of the positioning sleeve.

[0015] Preferably, the other end of the positioning twist rod is fixedly connected to the drive plate. When the telescopic cylinder drives the drive plate to move laterally, the positioning twist rod, through its threaded engagement with the positioning sleeve, drives the adjusting plate to rotate and adjust inside the fixed barrel.

[0016] Preferably, a return spring is fixedly connected between the fixed barrel and the drive disc, and a sealing gasket is fixedly connected to the inner side of the adjusting disc. The sealing gasket fits tightly against the inner wall of the fixed barrel to ensure the sealing of the cavity formed between the adjusting disc and the fixed barrel during the rotation of the adjusting disc.

[0017] Compared with the prior art, the beneficial effects of the present invention are: (1) It is equipped with a telescopic cylinder. When the telescopic cylinder is started, it can accurately drive the drive plate to move laterally. Since the drive plate is fixedly connected to the opposite clamping frame, the two sets of drive plates can move closer or further away from each other, which can directly drive the two sets of clamping frames to move synchronously, thereby realizing the stable clamping and release of the concrete block to be tested. The clamping operation is highly automated and the clamping force is uniform and controllable, which can effectively prevent the concrete block from shifting or shaking during the test, and provide a solid foundation for subsequent pressing test.

[0018] (2) When the drive plate moves, the connecting rod fixedly connected to one side will simultaneously drive the air supply plate to slide inside the auxiliary barrel. Since the side of the air supply plate is in close contact with the inner wall of the auxiliary barrel to form a sealed state, when the drive plate drives the clamping frame to move inward to clamp the concrete block, the air supply plate will squeeze into the auxiliary barrel and blow the gas in the auxiliary barrel out towards the concrete block placement position through the connecting pipe. The setting direction of the connecting pipe ensures that the blown gas can directly act on the surface and surrounding area of ​​the concrete block, effectively removing dust, debris and other impurities attached to the surface of the concrete block, avoiding these impurities from affecting the accuracy of the test data in the subsequent pressing test process, realizing the simultaneous execution of clamping operation and cleaning operation, and improving the efficiency and effect of pre-treatment before testing.

[0019] (3) The lateral movement of the drive disc will also drive the positioning twist rod that is fixedly connected to it to move synchronously. The positioning twist rod is threadedly connected to the positioning sleeve, and the positioning sleeve is fixedly connected to the inner side of the adjustment disc. Therefore, when the positioning twist rod moves with the drive disc, it will drive the positioning sleeve and the adjustment disc to rotate and adjust inside the fixed barrel through the threaded connection. The adjustment disc has annular array of exhaust holes, and the cavity formed between it and the fixed barrel stores gas. During the rotation of the adjustment disc, the position of the exhaust holes will change, thereby adjusting the angle and range of gas discharge.

[0020] (4) The sealing gasket ring fixedly connected to the inner side of the fixed bucket fits tightly against the inner wall of the fixed bucket, ensuring good sealing of the cavity formed between the adjusting plate and the fixed bucket during the rotation of the adjusting plate, ensuring that the gas can be stably discharged outward through the exhaust hole, further assisting in cleaning the environment around the concrete block, or blowing airflow into specific areas according to the testing requirements, enhancing the flexibility and cleaning effect of the gas supply mechanism. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the telescopic cylinder of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the fixed bucket of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the drive disk of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the auxiliary bucket of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a three-dimensional cross-sectional view of the adjusting disc of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the positioning sleeve of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the air supply plate of the present invention.

[0022] In the diagram: 1. Detection frame; 2. Drive cylinder; 3. Detection plate; 4. Auxiliary barrel; 5. Connecting rod; 6. Telescopic cylinder; 7. Fixed barrel; 8. Drive plate; 9. Clamping frame; 10. Adjusting plate; 11. Sealing gasket ring; 12. Exhaust hole; 13. Air supply plate; 14. Positioning twisted rod; 15. Positioning sleeve; 16. Connecting pipe; 17. Return spring. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: As Figure 1 - Figure 4 The present invention provides the following technical solution: a concrete quality testing device for water conservancy projects, wherein a driving cylinder 2 is fixedly connected to the upper surface of the testing frame 1, and a testing plate 3 for pressing and testing concrete made of new materials is fixedly connected to the lower output end of the driving cylinder 2; telescopic cylinders 6 are fixedly connected to both the left and right sides of the upper surface of the testing frame 1, and a clamping mechanism is provided at the output end of the telescopic cylinder 6; the clamping mechanism clamps the concrete to be tested by moving the position of the clamping frame 9 included therein; the clamping mechanism includes a driving disk 8, which is fixedly connected to the output end of the telescopic cylinder 6, and a clamping frame 9 is fixedly connected to the lower side of the driving disk 8; and the two sets of clamping frames 9 are arranged facing each other, and the clamping of the concrete block is achieved by the mutual approach of the two sets of clamping frames 9.

[0025] In actual operation, the concrete block to be tested is placed in the designated position within the testing frame 1. Then, the telescopic cylinder 6 is activated, and the piston rod of the telescopic cylinder 6 extends, driving the drive plate 8 to move closer to the concrete block. Since the two sets of clamping frames 9 are fixed to the lower side of the drive plate 8 on the left and right sides respectively and are arranged facing each other, under the drive of the drive plate 8, the two sets of clamping frames 9 move inward synchronously until their inner sidewalls are in close contact with the sides of the concrete block, thus firmly clamping the concrete block in the testing position. The clamping surface of the clamping frame 9 can be adapted to the shape of the concrete block, such as using an arc or flat structure, to ensure sufficient contact area with the concrete block, avoid damage to the concrete block during clamping, and ensure the reliability of clamping, preventing the concrete block from loosening or falling off during subsequent testing. After the test is completed, the piston rod of the telescopic cylinder 6 retracts, driving the drive plate 8 and the clamping frame 9 to move outward, releasing the clamp on the concrete block so that the tested concrete block can be taken out.

[0026] Example 2: Figure 3 , Figure 7 and Figure 8The present invention provides the following technical solution: a concrete quality testing device for water conservancy projects, wherein an air supply mechanism is provided on the front side of the clamping frame 9. The air supply mechanism blows air onto the concrete block to be tested simultaneously with the operation of the clamping operation to avoid impurities from adhering and affecting the testing effect. The air supply mechanism includes a fixed barrel 7, which is fixedly connected to the upper surface of the testing frame 1 and is located inside the drive plate 8. An auxiliary barrel 4 is fixedly connected to the side of the fixed barrel 7 closest to the drive plate 8, and the interior of the auxiliary barrel 4 is hollow. The auxiliary barrel 4 has a heart-shaped structure. An air supply plate 13 is slidably connected to the inside of the auxiliary barrel 4, and the side of the air supply plate 13 contacts the inner wall of the auxiliary barrel 4 to form a seal. A connecting rod 5 is fixedly connected to one side of the air supply plate 13, and the connecting rod 5 extends through to the outside of the auxiliary barrel 4 and is fixedly connected to the drive plate 8 bracket. A connecting pipe 16 is provided through the other end of the auxiliary barrel 4, and the connecting pipe 16 is set towards the side where the concrete block is placed. The air supply and dust blowing function is realized by the movement of the air supply plate 13 inside the auxiliary barrel 4 to compress the gas inside the auxiliary barrel 4.

[0027] As the clamping frame 9 moves inward to clamp the concrete block, the drive disc 8 synchronously drives the connecting rod 5, which is fixedly connected to it, to move. The other end of the connecting rod 5 is fixedly connected to the air supply plate 13. Therefore, the air supply plate 13 will slide inside the auxiliary barrel 4 towards the connecting pipe 16. Since the side of the air supply plate 13 is in close contact with the inner wall of the auxiliary barrel 4 to form a good seal, as the air supply plate 13 slides, the volume of the cavity inside the auxiliary barrel 4 between the air supply plate 13 and the connecting pipe 16 gradually decreases, thereby compressing the gas in the cavity. The compressed gas will then be discharged outward through the connecting pipe 16. The outlet end of the connecting pipe 16 faces the placement area of ​​the concrete block, allowing the exhaust gas to be directly blown onto the surface, corners, and placement platform below the concrete block. The impact of the airflow can effectively blow off dust, fine sand particles, cement powder, and other impurities adhering to the surface of the concrete block. At the same time, it can also clean up any debris that may be present on the placement platform, preventing these impurities from getting stuck between the test plate 3 and the concrete block during the subsequent compression test, or affecting the stable contact between the concrete block and the test platform. This ensures that the pressure applied by the test plate 3 to the concrete block can be accurately transmitted, guaranteeing the authenticity and reliability of the compression test data.

[0028] Example 3: Figure 5 , Figure 6 , Figure 7 and Figure 9The present invention provides the following technical solution: a concrete quality testing device for hydraulic engineering, wherein an adjusting plate 10 is nested inside a fixed bucket 7, and the side of the adjusting plate 10 is in contact with the inner wall of the fixed bucket 7. The adjusting plate 10 has annularly arrayed exhaust holes 12, and a cavity is formed between the adjusting plate 10 and the fixed bucket 7. Gas stored in the cavity is discharged outwards through the exhaust holes 12. A positioning sleeve 15 is fixedly connected to the inner side of the adjusting plate 10, and the positioning sleeve 15 extends through to the outer side of the fixed bucket 7. The inner thread of 5 is connected to a positioning twisted rod 14. The other end of the positioning twisted rod 14 is fixedly connected to the drive plate 8. When the telescopic cylinder 6 drives the drive plate 8 to move laterally, the positioning twisted rod 14 drives the adjusting plate 10 to rotate and adjust inside the fixed barrel 7 through the threaded engagement with the positioning sleeve 15. A return spring 17 is fixedly connected between the fixed barrel 7 and the drive plate 8. A sealing gasket 11 is fixedly connected to the inner side of the adjusting plate 10. The sealing gasket 11 fits tightly against the inner wall of the fixed barrel 7 to ensure the sealing of the cavity formed between the adjusting plate 10 and the fixed barrel 7 during the rotation process.

[0029] While the telescopic cylinder 6 drives the drive disc 8 to move laterally, the positioning twisted rod 14, which is fixedly connected to the drive disc 8, also moves axially in sync. Since the outer side of the positioning twisted rod 14 and the inner side of the positioning sleeve 15 are engaged by a threaded structure, and the positioning sleeve 15 is fixedly connected to the adjusting disc 10 as a whole, when the positioning twisted rod 14 moves along its axial direction, it will generate a circumferential rotational driving force on the positioning sleeve 15. Under the action of this driving force, the positioning sleeve 15 drives the adjusting disc 10 to rotate inside the fixed barrel 7. The side of the adjusting disc 10 contacts the inner wall of the fixed barrel 7. During its rotation, the spatial angle of the exhaust holes 12 arranged in a ring on it also changes. A certain amount of gas is pre-stored in the cavity formed between the fixed barrel 7 and the adjusting disc 10. Under pressure, this gas will be discharged outward through the constantly changing exhaust holes 12, thereby realizing the dynamic adjustment of the gas discharge angle and coverage area.

[0030] To ensure a good seal in the cavity formed between the adjusting disc 10 and the fixed barrel 7 during rotation, preventing gas leakage at locations other than the vent 12, a sealing gasket 11 is fixedly connected to the inner side of the adjusting disc 10. The sealing gasket 11 is made of a material with good elasticity and wear resistance, and its outer circumference is tightly fitted to the inner wall of the fixed barrel 7, forming a reliable sealing barrier. This effectively ensures that the gas in the cavity can be stably and dispersedly discharged outward through the vent 12. This dispersed venting method can further assist in removing suspended impurities in the environment surrounding the concrete block. The return spring 17, fixedly connected between the fixed barrel 7 and the drive disc 8, provides auxiliary return pulling force when the drive disc 8 moves outward to reset, ensuring that each component can return to its initial position smoothly and accurately, preparing for the next inspection operation.

[0031] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A concrete quality testing device for hydraulic engineering, comprising a testing frame (1), wherein a driving cylinder (2) is fixedly connected to the upper surface of the testing frame (1), and a testing plate (3) for pressing and testing concrete made of new materials is fixedly connected to the lower output end of the driving cylinder (2), characterized in that, Telescopic cylinders (6) are fixedly connected to the left and right sides of the upper surface of the detection frame (1), and a clamping mechanism is provided at the output end of the telescopic cylinder (6). The clamping mechanism clamps the concrete to be tested by moving the position of the clamping frame (9) it contains. An air supply mechanism is also provided on the front side of the clamping frame (9). The air supply mechanism blows air onto the concrete block to be tested in sync with the operation of the clamping operation to avoid impurities from adhering and affecting the detection effect.

2. The concrete quality testing device for water conservancy projects according to claim 1, characterized in that: The clamping mechanism includes a drive disk (8), which is fixedly connected to the output end of the telescopic cylinder (6). A clamping frame (9) is fixedly connected to the lower side of the drive disk (8), and the two sets of clamping frames (9) are arranged facing each other. The clamping of the concrete block is achieved by the two sets of clamping frames (9) approaching each other.

3. The concrete quality testing device for water conservancy projects according to claim 2, characterized in that: The gas supply mechanism includes a fixed barrel (7), which is fixedly connected to the upper surface of the detection frame (1) and located inside the drive disk (8). An auxiliary barrel (4) is fixedly connected to the side of the fixed barrel (7) near the drive disk (8), and the auxiliary barrel (4) has a hollow structure inside.

4. The concrete quality testing device for water conservancy projects according to claim 3, characterized in that: An air supply plate (13) is slidably connected to the inner side of the auxiliary barrel (4), and the side of the air supply plate (13) is in contact with the inner wall of the auxiliary barrel (4) to form a sealed state. A connecting rod (5) is fixedly connected to one side of the air supply plate (13), and the connecting rod (5) extends through to the outside of the auxiliary barrel (4) and is fixedly connected to the drive disc (8) bracket.

5. The concrete quality testing device for water conservancy projects according to claim 4, characterized in that: The other end of the auxiliary bucket (4) is provided with a connecting pipe (16), and the connecting pipe (16) is set towards the side where the concrete block is placed. The gas supply plate (13) moves inside the auxiliary bucket (4) to compress the gas inside the auxiliary bucket (4) to realize the gas supply and ash blowing function.

6. The concrete quality testing device for water conservancy projects according to claim 5, characterized in that: An adjusting plate (10) is nested inside the fixed barrel (7), and the side of the adjusting plate (10) is in contact with the inner wall of the fixed barrel (7). The adjusting plate (10) has an array of exhaust holes (12) in a ring. A cavity is formed between the adjusting plate (10) and the fixed barrel (7), and the gas stored in the cavity is discharged outward through the exhaust holes (12).

7. A concrete quality testing device for water conservancy projects according to claim 6, characterized in that: The inner side of the adjusting plate (10) is fixedly connected to a positioning sleeve (15), and the positioning sleeve (15) extends through to the outer side of the fixed barrel (7), and the inner side of the positioning sleeve (15) is threadedly connected to a positioning twist rod (14).

8. A concrete quality testing device for water conservancy projects according to claim 7, characterized in that: The other end of the positioning twist rod (14) is fixedly connected to the drive plate (8). When the telescopic cylinder (6) drives the drive plate (8) to move laterally, the positioning twist rod (14) drives the adjusting plate (10) to rotate and adjust inside the fixed barrel (7) through the threaded engagement with the positioning sleeve (15).

9. A concrete quality testing device for hydraulic engineering according to claim 8, characterized in that: A return spring (17) is fixedly connected between the fixed barrel (7) and the drive disc (8). A sealing gasket (11) is fixedly connected to the inner side of the adjusting disc (10). The sealing gasket (11) is tightly fitted to the inner wall of the fixed barrel (7) to ensure the sealing of the cavity formed between the adjusting disc (10) and the fixed barrel (7) during the rotation of the adjusting disc (10).

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