A concrete quality detection device

Abstract

This utility model relates to the field of concrete testing technology, specifically a concrete quality testing device, including a slide rail bracket, a first side plate, and a second side plate. The two ends of the slide rail bracket are slidably connected to the first and second side plates, respectively. A locking nut is provided on the side of the first side plate, and a lead screw is threaded into the locking nut. One end of the lead screw, passing through the first side plate, is rotatably connected to a clamping plate via a ball-head limiting block. The slide rail bracket is slidably connected to a housing via a second slider. Multiple guide columns are fixedly connected inside the housing. A rebound hammer is slidably connected to the guide columns via a mounting plate. The surface of the rebound hammer is provided with scale markings. A spring is wrapped around the outer surface of the guide columns, with one end of the spring fixedly connected to the inner bottom surface of the housing and the other end fixedly connected to the mounting plate. During the testing process, the operator only needs to control the pressing force according to the scale markings to ensure consistency in the magnitude, angle, and uniformity of the applied force each time, reducing the operational difficulty of the rebound hammer.

Description

Technical Field

[0001] This utility model relates to a concrete quality testing device, and in particular to a concrete quality testing device, belonging to the field of concrete testing technology. Background Technology

[0002] Non-destructive testing methods for concrete quality include rebound hammer testing, ultrasonic testing, and radar testing. Among these, rebound hammer testing uses a rebound hammer to detect the surface hardness of concrete and thus estimate its compressive strength; it is a widely used non-destructive testing method for concrete quality.

[0003] When using a rebound hammer to test the surface hardness of concrete, the operator needs to hold the rebound hammer, align it vertically with the test surface, slowly apply pressure, and extend the impact rod. During the operation, it is necessary to ensure that the magnitude, angle, and uniformity of the force applied each time are consistent, which makes it difficult to operate the rebound hammer for measurement. Even the same operator may apply different amounts of force and angle each time they operate the rebound hammer. In particular, when novices perform measurements, there are large errors in the measurement data each time. Even after multiple measurements, the final measurement result is still problematic.

[0004] Therefore, there is an urgent need to improve a concrete quality testing device to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a concrete quality testing device. During the testing process, as long as the operator controls the pressure according to the scale line position, the magnitude, angle, and uniformity of the applied force can be kept consistent each time, thus reducing the difficulty of operating the rebound hammer.

[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a concrete quality testing device, comprising a slide rail bracket, a first side plate, and a second side plate. The two ends of the slide rail bracket are slidably connected to the first side plate and the second side plate, respectively. A locking nut is provided on the side of the first side plate, and a lead screw is threaded into the locking nut. One end of the lead screw, passing through the first side plate, is rotatably connected to a clamping plate via a ball-head limiting block. The slide rail bracket is slidably connected to a housing via a second slider. Multiple guide columns are fixedly connected inside the housing. An mounting plate is slidably arranged through the guide columns. A rebound hammer is arranged inside the mounting plate, and scale markings are provided on the surface of the rebound hammer. A spring is wrapped around the outer surface of the guide columns. One end of the spring is fixedly connected to the inner bottom surface of the housing, and the other end of the spring is fixedly connected to the mounting plate.

[0007] Preferably, the slide rail bracket is provided with a first slider at both ends, and a first guide rail is provided on the outward side of the first side plate and the second side plate, and the first slider is slidably connected to the first guide rail.

[0008] Preferably, the mounting plate has mounting sleeves on both the upper and lower sides, and the rebound spring is fixedly connected to the mounting sleeves.

[0009] Preferably, the end of the lead screw that is inserted into the ball head limiting block is provided with a ball head, and the ball head limiting block is provided with a limiting groove, the diameter of which is larger than the diameter of the ball head.

[0010] Preferably, the inner surfaces of the second side plate and the clamping plate are provided with a plurality of fixing tooth structures.

[0011] Preferably, both the outer surfaces of the first side plate and the second side plate are bolted with stop blocks, which are located at both ends of the first guide rail.

[0012] Preferably, a positioning threaded rod is threadedly connected to the side of the first slider, and the positioning threaded rod is inserted into the first slider and abuts against the surface of the first guide rail.

[0013] Preferably, an L-plate is provided on the outer side of the housing, and a second positioning threaded rod that abuts against the outer side of the slide rail bracket is threadedly connected to the L-plate. Both the positioning threaded rod and the inner end of the second positioning threaded rod are anti-slip rubber blocks.

[0014] Preferably, the upper surface of the clamping plate is provided with a limiting slider, and the lower surface of the slide rail bracket is provided with a limiting groove that is slidably connected to the limiting slider.

[0015] This utility model has at least the following beneficial effects:

[0016] 1. By using a lead screw to push the clamping plate inward, the second side plate and the concrete block between the clamping plates are clamped, making the slide rail bracket parallel to the surface being measured. At this time, the bottom of the rebound hammer is parallel to the surface being measured. Then, the slide rail bracket is moved to the measured position, and the tail of the rebound hammer is pressed. By controlling the pressing force according to the scale line position, the magnitude, angle, and uniformity of the applied force can be ensured to be consistent each time, reducing the difficulty of operating the rebound hammer and reducing measurement data errors.

[0017] 2. When multiple points of concrete need to be tested in the longitudinal and transverse directions, simply loosen the positioning threaded rod and the second positioning threaded rod, adjust the position of the rebound hammer, and then fix it using the positioning threaded rod and the second positioning threaded rod. The positioning threaded rod and the second positioning threaded rod can be used as needed. When longitudinal fixation is not required, there is no need to tighten the positioning threaded rod, and when transverse fixation is not required, there is no need to tighten the second positioning threaded rod, making the equipment flexible. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the clamping plate of this utility model;

[0021] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the internal structure of the shell of this utility model;

[0023] Figure 5 This is a cross-sectional schematic diagram of the slide rail bracket of this utility model.

[0024] In the diagram, 1. Slide rail bracket; 2. First side plate; 3. Second side plate; 4. Locking nut; 5. Lead screw; 6. Ball head limiting block; 7. Clamping plate; 8. Second slider; 9. Housing; 10. Guide post; 11. Spring; 12. Mounting plate; 13. Rebound spring; 14. First slider; 15. First guide rail; 16. Mounting sleeve; 17. Ball head; 18. Limiting groove; 19. Fixed tooth structure; 20. Stop block; 21. Positioning threaded rod; 22. L-plate; 23. Second positioning threaded rod; 24. Limiting slider; 25. Limiting groove. Detailed Implementation

[0025] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0026] like Figures 1-5 As shown, this embodiment provides a concrete quality testing device, including a slide rail bracket 1, a first side plate 2, and a second side plate 3. The two ends of the slide rail bracket 1 are slidably connected to the first side plate 2 and the second side plate 3, respectively. Each end of the slide rail bracket 1 is provided with a first slider 14. The first side plate 2 and the second side plate 3 are each provided with a first guide rail 15 on their outward side. The first slider 14 is slidably connected to the first guide rail 15. The sliding adjustment effect of the slide rail bracket 1 can be achieved by using the first guide rail 15 and the first slider 14.

[0027] Furthermore, the outer surfaces of the first side plate 2 and the second side plate 3 are both bolted with stop blocks 20. The stop blocks 20 are located at both ends of the first guide rail 15. The stop blocks 20 can prevent the first slider 14 from sliding out of the guide rail.

[0028] The first side plate 2 is provided with a locking nut 4. The locking nut 4 can prevent the lead screw 5 from loosening due to vibration. The locking nut 4 is internally threaded and connected to the lead screw 5. One end of the lead screw 5 passes through the first side plate 2 and is rotatably connected to the clamping plate 7 through the ball head limit block 6. The upper end face of the clamping plate 7 is provided with a limit slider 24, and the lower end face of the slide rail bracket 1 is provided with a limit groove 25 that is slidably connected to the limit slider 24, so as to ensure that the clamping plate 7 can slide normally horizontally.

[0029] Furthermore, the end of the lead screw 5 inserted into the ball head limiting block 6 is provided with a ball head 17, and the ball head limiting block 6 is provided with a limiting groove 18. The diameter of the limiting groove 18 is larger than the diameter of the ball head 17. The ball head 17 can move within the limiting groove 18, so that when the lead screw 5 rotates in the second side plate 3, the inner end rotates within the ball head limiting block 6, thereby pushing the clamping plate 7 to slide inward, thereby achieving the clamping of concrete. Several fixing tooth structures 19 are distributed on the inner surfaces of the second side plate 3 and the clamping plate 7. The fixing tooth structures 19 are used to fix the concrete clamped in the middle.

[0030] The slide rail bracket 1 is slidably connected to the housing 9 via the second slider 8. Multiple guide posts 10 are fixedly connected inside the housing 9. The mounting plate 12 is slidably arranged via the guide posts 10. The rebound spring 13 is arranged inside the mounting plate 12. The upper and lower sides of the mounting plate 12 are provided with mounting sleeves 16. The rebound spring 13 is fixedly connected to the mounting sleeves 16. The surface of the rebound spring 13 is provided with scale marks. The outer surface of the guide posts 10 is wrapped with a spring 11. One end of the spring 11 is fixedly connected to the inner bottom surface of the housing 9, and the other end of the spring 11 is fixedly connected to the mounting plate 12. When the rebound spring 13 is pressed, the mounting plate 12 slides inside the housing 9 under the action of the guide posts 10, compressing the spring 11. When the pressing is stopped, the rebound spring 13 returns to its original position.

[0031] Furthermore, a positioning threaded rod 21 is threadedly connected to the side of the first slider 14. The positioning threaded rod 21 is inserted into the first slider 14 and abuts against the surface of the first guide rail 15. By tightening the positioning threaded rod 21, it abuts against the surface of the first guide rail 15, thereby preventing relative sliding between the first slider 14 and the first guide rail 15. An L-plate 22 is provided on the outer side of the housing 9. A second positioning threaded rod 23 is threadedly connected to the L-plate 22 and abuts against the outer side of the slide rail bracket 1. By tightening the second positioning threaded rod 23, it abuts against the surface of the slide rail bracket 1, thereby preventing the rebound device 13 from sliding. It exhibits good stability during testing. When the position needs to be adjusted, the positioning threaded rod 21 and the second positioning threaded rod 23 are rotated in opposite directions so that they no longer abut against the first guide rail 15 and the slide rail bracket 1, thereby realizing the longitudinal and lateral adjustment of the rebound hammer 13, enabling it to test multiple parts of the concrete to be tested. The inner ends of the positioning threaded rod 21 and the second positioning threaded rod 23 are all anti-slip rubber blocks. The setting of anti-slip rubber blocks can improve the anti-slip effect of the abutting ends of the second positioning threaded rod 23 and the positioning threaded rod 21, and improve the stability of the housing 9 and the slide rail bracket 1 after sliding adjustment.

[0032] like Figures 1-5 As shown, the principle of the concrete quality testing equipment provided in this embodiment is as follows: During use, the first side plate 2 and the second side plate 3 are placed on both sides of the concrete to be tested. The screw 5 is turned, causing the clamping plate 7 to move inward, clamping the concrete block between the second side plate 3 and the clamping plate 7, making the slide rail bracket 1 parallel to the surface being tested. At this time, the bottom end of the rebound hammer 13 is parallel to the surface being tested. Then, the slide rail bracket 1 is moved to the test position, and the positioning threaded rod 21 and the second positioning threaded rod 23 are tightened, preventing relative sliding between the first slider 14 and the first guide rail 15, and also preventing relative sliding between the rebound hammer 13 and the slide rail bracket 1, thus improving stability during testing. The rebound hammer 13 is pressed down at its tail. By observing the position of the scale line, the pressing force can be easily controlled. When it is necessary to test multiple points of the concrete in the longitudinal and transverse directions, simply loosen the positioning threaded rod 21 and the second positioning threaded rod 23 to adjust the position of the rebound hammer 13. After adjustment, it can be fixed by using the positioning threaded rod 21 and the second positioning threaded rod 23. The positioning threaded rod 21 and the second positioning threaded rod 23 can be used as needed. When longitudinal fixation is not required, the positioning threaded rod 21 does not need to be tightened. When transverse fixation is not required, the second positioning threaded rod 23 does not need to be tightened, making the equipment flexible.

[0033] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A concrete quality testing device, comprising a slide rail support (1), a first side plate (2), and a second side plate (3), characterized in that: The slide rail bracket (1) is slidably connected to the first side plate (2) and the second side plate (3) at both ends respectively. The first side plate (2) is provided with a locking nut (4) on its side. The locking nut (4) is threaded and connected to a screw rod (5). The end of the screw rod (5) that passes through the first side plate (2) is rotatably connected to a clamping plate (7) through a ball head limiting block (6). The slide rail bracket (1) is slidably connected to a housing (9) through a second slider (8). Multiple guide columns (10) are fixedly connected inside the housing (9). An installation plate (12) is slidably provided through the guide columns (10). A rebound spring (13) is provided inside the installation plate (12). The surface of the rebound spring (13) is provided with scale markings. A spring (11) is wrapped around the outer surface of the guide column (10). One end of the spring (11) is fixedly connected to the inner bottom surface of the housing (9). The other end of the spring (11) is fixedly connected to the installation plate (12).

2. The concrete quality testing equipment according to claim 1, characterized in that: The slide rail bracket (1) is provided with a first slider (14) at both ends, and a first guide rail (15) is provided on the outward side of the first side plate (2) and the second side plate (3). The first slider (14) is slidably connected to the first guide rail (15).

3. The concrete quality testing equipment according to claim 1, characterized in that: The mounting plate (12) has mounting sleeves (16) on both the upper and lower sides, and the rebound spring (13) is fixedly connected to the mounting sleeves (16).

4. The concrete quality testing equipment according to claim 1, characterized in that: The lead screw (5) is inserted into the ball head limiting block (6) at one end and has a ball head (17). The ball head limiting block (6) has a limiting groove (18) inside, and the diameter of the limiting groove (18) is larger than the diameter of the ball head (17).

5. A concrete quality testing device according to claim 1, characterized in that: The inner surfaces of the second side plate (3) and the clamping plate (7) are provided with a number of fixed tooth structures (19).

6. A concrete quality testing device according to claim 2, characterized in that: Both the outer surfaces of the first side plate (2) and the second side plate (3) are bolted with stop blocks (20), which are located at both ends of the first guide rail (15).

7. A concrete quality testing device according to claim 2, characterized in that: The first slider (14) has a positioning threaded rod (21) threadedly connected to its side. The positioning threaded rod (21) is inserted into the first slider (14) and abuts against the surface of the first guide rail (15).

8. A concrete quality testing device according to claim 7, characterized in that: An L-plate (22) is provided on the outer side of the housing (9). A second positioning threaded rod (23) that abuts against the outer side of the slide rail bracket (1) is threaded onto the L-plate (22). The inner ends of the positioning threaded rod (21) and the second positioning threaded rod (23) are both anti-slip rubber blocks.

9. A concrete quality testing device according to claim 1, characterized in that: The upper end face of the clamping plate (7) is provided with a limiting slider (24), and the lower end face of the slide rail bracket (1) is provided with a limiting groove (25) that is slidably connected to the limiting slider (24).

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