Building engineering quality detection device

Abstract

The utility model discloses a constructional engineering quality detection device, and belongs to the technical field of concrete detection. Comprising a rebound apparatus and further comprises a main frame, a sliding seat, a surrounding plate, a clamping sleeve and a top pressing plate, the main frame is of a C-shaped structure, and a laminated board is integrally manufactured at the bottom of the main frame; slideways are formed in the two sides of the main frame; the sliding seat comprises a sliding plate arranged on the inner side of the main frame, a sliding block is integrally formed on the sliding plate, and the sliding block is arranged on the inner side of the sliding way in a sliding mode; the coaming is mounted outside the main frame in a sliding manner, and the coaming is rotationally connected and fixed with the sliding block; a first grip is fixed to the side, away from the opening of the main frame, of the coaming. Penetrating holes are oppositely formed in the upper parts and the lower parts of the coaming and the sliding seat; a position adjusting screw rod is fixed at the outer part of the surrounding plate; the constructional engineering quality detection device disclosed by the utility model can assist a rebound apparatus to vertically apply pressure to a sampling surface, ensure that a detection result is effective, and can improve the detection convenience.

Description

Technical Field

[0001] This utility model specifically relates to a building engineering quality testing device, belonging to the field of concrete testing technology. Background Technology

[0002] During construction, quality testing is essential, and concrete performance testing is a crucial component. Currently, rebound hammers are commonly used for compressive strength testing. Before testing, a grid is drawn on the surface of the concrete sample, with each grid cell serving as a test point. The tester places the impact rod at the front of the rebound hammer against the test area surface and repeatedly presses the rebound hammer vertically, causing the impact rod to strike multiple test areas on the concrete sample surface. A sample is taken from each test area, and the rebound volume is recorded for each sample. The compressive strength of the concrete is then calculated. The accuracy of the impact during this process is crucial in determining whether the impact rod strikes the concrete sample perpendicularly. The surface is a crucial factor affecting the validity of test results. To address this, Chinese Patent Publication No. CN119086325A discloses a concrete performance testing device. Each time the rebound hammer tests the performance of a concrete sampling surface, a marking unit leaves multiple marking lines on the sampling surface. When the impact rod is perpendicular to the sampling surface, the multiple marking lines have the same length; when the impact rod is inclined to the sampling surface, the multiple marking lines have different lengths. The difference in the length of the multiple marking lines indicates whether the test is perpendicular and thus identifies its validity. However, this structure can only mark whether the test is perpendicular and cannot assist the rebound hammer in applying vertical pressure to the sampling surface. Utility Model Content

[0003] To address the aforementioned issues, this invention proposes a building engineering quality testing device that can assist a rebound hammer in applying vertical pressure to the sampling surface, ensuring the validity of the test results and improving testing convenience.

[0004] This utility model relates to a construction engineering quality testing device, which includes a rebound hammer and further includes:

[0005] The main frame has a C-shaped structure, and the bottom of the main frame is integrally formed with a panel; slide rails are provided on both sides of the main frame;

[0006] A sliding seat, the sliding seat including a sliding plate disposed on the inner side of the main frame, the sliding plate having an integrally formed slider, the slider being slidably disposed on the inner side of the slide rail;

[0007] A side panel is slidably installed on the outside of the main frame and screwed to a slider; a first handle is fixed to the side of the side panel away from the opening of the main frame.

[0008] The upper and lower parts of the enclosure and the sliding seat are respectively provided with through holes; an adjustment screw is fixed to the outside of the enclosure;

[0009] A sleeve is provided inside the main frame, and a sliding rod moves through the through hole and is screwed and fixed to the sleeve; the rebound spring is provided between the sleeves and is attached to the outer wall of the rebound spring through the sleeves.

[0010] A top pressure plate is fixed to the outer end of the slide rod; an adjustment hole is provided in the middle of the top pressure plate, and the adjustment screw moves through the adjustment hole and is screwed with a limit screw sleeve.

[0011] In use, the rebound hammer is placed between the clamps, and the mold cavity of the clamps fits against the outer wall of the rebound hammer to limit the rebound force. Then, the limiting screw is rotated, and the limiting screw and the adjusting screw are continuously screwed in, thereby simultaneously pushing the top pressure plate to one side of the main frame. The top pressure plate simultaneously pushes the slide rod to slide along the adjusting hole, so that the slide rod pushes the clamp to clamp and hold the rebound hammer tightly; this completes the installation and limiting of the rebound hammer. Next, quality inspection is carried out by pressing the panel of the main frame with the test surface, and holding the first handle. The first handle pushes the inner surface of the surrounding plate to slide along the outside of the main frame. At the same time, the surrounding plate and the sliding seat cooperate to realize the sliding cooperation between the sliding seat and the slide rail, realizing the linear force test of the rebound hammer.

[0012] Furthermore, a second handle is screwed onto the lower part of the main frame. During operation, holding the second handle presses the main frame against the test surface.

[0013] Furthermore, it also includes a horizontal pressure plate, which is provided with a dovetail groove. The bottom surface of the panel is integrally formed with a dovetail slider, which is slidably installed with the dovetail groove. The end of the horizontal pressure plate is provided with a cap. A hook seat is fixed on the side of the horizontal pressure plate, and a third handle is fixed on the hook seat. During operation, the third handle is held to make the horizontal pressure plate fit with the dividing line of the sampling surface. Then, the rebound hammer is pushed by the first handle to perform the test. After the test is completed, the third handle is kept still, and the main frame is pushed to slide by the first handle, so that the dovetail slider slides in the dovetail groove, and the rebound hammer slides to the next measuring point.

[0014] Furthermore, a sliding cylinder is fixed to the top pressure plate opposite the sliding rod, and the sliding rod and the sliding cylinder are fitted and fixed together; during installation, the sliding cylinder and the top pressure plate are fixed by screwing or welding, and then the sliding rod and the sliding cylinder are fitted together; thereby realizing the installation of the top pressure plate and the sliding rod.

[0015] Furthermore, a cross plate is fixed to the top of the sliding seat by bolts, and a limiting mold hole is opened on the bottom surface of the cross plate to fit into the top of the rebounder; in use, the cross plate can support the top of the rebounder; during installation, the top of the rebounder is fitted into the limiting mold hole, and then the outer peripheral surface of the rebounder is clamped by the clamp; thereby realizing the clamping of the rebounder, and due to the limiting of the rebounder by the clamp and the limiting mold hole, the axis of the rebounder can be made perpendicular to the panel.

[0016] Compared with the prior art, the construction engineering quality testing device of this utility model adopts a vertical alignment between the main frame and the sampling surface, and can ensure the linearity of the rebound hammer during pressure testing, thereby ensuring that the rebound hammer applies vertical pressure to the sampling surface and ensuring the validity of the test results. During testing, the main frame is set vertically with the sampling surface by the second or third grip, and the rebound hammer is pushed by the first grip for testing, which can improve the convenience of testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the quality inspection device of this utility model before the top pressure plate is installed.

[0018] Figure 2 This is a schematic diagram of the installation structure of the enclosure, sliding seat, jacket, and rebound spring of this utility model.

[0019] Figure 3 This is a schematic diagram of the quality inspection device structure of Embodiment 1 of this utility model.

[0020] Figure 4 This is a schematic diagram of the mounting structure of the enclosure, sliding seat, jacket, rebound spring and cross plate of this utility model.

[0021] Figure 5 This is a schematic diagram of the quality inspection device structure of Embodiment 2 of this utility model.

[0022] Reference numerals in the attached diagram: 1. Rebound hammer, 2. Main frame, 3. Panel, 4. Slide rail, 5. Slide plate, 6. Slider, 7. Enclosure, 8. First grip, 9. Adjustment screw, 10. Jacket, 11. Slide rod, 12. Top pressure plate, 13. Limiting screw sleeve, 14. Second grip, 15. Horizontal pressure plate, 16. Dovetail groove, 17. End cap, 18. Hook seat, 19. Third grip, 20. Cross plate. Detailed Implementation

[0023] Example 1:

[0024] like Figures 1 to 4 The building construction quality testing device shown includes a rebound hammer 1, and also includes:

[0025] The main frame 2 has a C-shaped structure, and the bottom of the main frame 2 is integrally formed with a panel 3; slide rails 4 are provided on both sides of the main frame 2;

[0026] The sliding seat includes a sliding plate 5 disposed inside the main frame 2, and a slider 6 integrally formed on the sliding plate 5, the slider 6 being slidably disposed inside the slide rail 4;

[0027] The enclosure 7 is slidably installed on the outside of the main frame 2, and the enclosure 7 is screwed and fixed to the slider 6; a first handle 8 is fixed on the side of the enclosure 7 away from the opening of the main frame 2.

[0028] The upper and lower parts of the enclosure 7 and the sliding seat are provided with through holes; an adjustment screw 9 is fixed to the outside of the enclosure 7;

[0029] A sleeve 10 is disposed inside the main frame 2. A slide rod 11 moves through the through hole and is screwed and fixed to the sleeve 10. The rebound spring 1 is disposed between the sleeves 10 and is attached to the outer wall of the rebound spring 1 through the sleeves 10.

[0030] The top pressure plate 12 is fixed to the outer end of the slide rod 11; the top pressure plate 12 has an adjustment hole in the middle, the adjustment screw 9 moves out of the adjustment hole and is screwed with a limit screw sleeve 13.

[0031] In use, the rebound spring 1 is placed between the clamps 10, and the mold cavity of the clamp 10 is in contact with the outer wall of the rebound spring 1 to limit the rebound. Then, the limiting screw sleeve 13 is rotated, so that the limiting screw sleeve 13 and the adjusting screw 9 are continuously screwed in, thereby simultaneously pushing the top pressure plate 12 to one side of the main frame 2. The top pressure plate 12 simultaneously pushes the slide rod 11 to slide along the adjusting hole, so that the slide rod 11 pushes the clamp 10 to clamp and hold the rebound spring 1; thus completing the installation and limiting of the rebound spring 1. Next, the quality inspection is carried out by pressing the panel 3 of the main frame 2 with the test surface and holding the first handle 8. The first handle 8 pushes the inner surface of the surrounding plate 7 to slide along the outside of the main frame 2. At the same time, the surrounding plate 7 and the sliding seat cooperate to realize the sliding cooperation between the sliding seat and the slide rail 4, so as to realize the linear force test of the rebound spring 1.

[0032] The main frame 2 is screwed to a second handle 14 at the lower part. During operation, the second handle 14 is held to press the main frame 2 against the test surface.

[0033] The top pressure plate 12 is fixed with a sliding cylinder opposite the sliding rod 11, and the sliding rod 11 is fitted and fixed with the sliding cylinder. During installation, the sliding cylinder and the top pressure plate 12 are fixed by screwing or welding. Then, the sliding rod 11 is fitted with the sliding cylinder, thereby realizing the cooperation between the top pressure plate 12 and the sliding rod 11.

[0034] The top of the sliding seat is fixed with a cross plate 20 by bolts. The bottom surface of the cross plate 20 has a limiting mold hole that fits into the top of the rebounder 1. In use, the cross plate 20 can support the top of the rebounder 1. During installation, the top of the rebounder 1 is fitted into the limiting mold hole. Then, the outer peripheral surface of the rebounder 1 is clamped by the clamp 10. Thus, the rebounder 1 is clamped. And because the clamp 10 and the limiting mold hole limit the rebounder 1, the axis of the rebounder 1 can be made perpendicular to the panel 3.

[0035] Example 2:

[0036] like Figure 5The construction engineering quality testing device shown also includes a horizontal pressure plate 15, on which a dovetail groove 16 is provided. The bottom surface of the panel 3 is integrally formed with a dovetail slider, which is slidably installed with the dovetail groove 16. A cap 17 is provided at the end of the horizontal pressure plate 15. A hook seat 18 is fixed to the side of the horizontal pressure plate 15, and a third handle 19 is fixed to the hook seat 18. During operation, the third handle 19 is held to make the horizontal pressure plate 15 fit with the dividing line of the sampling surface. Then, the rebound hammer 1 is pushed by the first handle 8 for testing. After the test is completed, the third handle 19 is kept still, and the main frame 2 is pushed by the first handle 8 to slide, so that the dovetail slider slides in the dovetail groove 16, and the rebound hammer 1 slides to the next measuring point.

[0037] The above embodiments are merely preferred embodiments of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model are included within the scope of the present utility model.

Claims

1. A construction quality testing apparatus comprising a rebound hammer, characterised in that: Also include: The main frame is a C-shaped structure, the bottom of the main frame is integrally provided with a veneer; the two sides of the main frame are provided with sliding ways; The sliding seat includes a sliding plate arranged on the inner side of the main frame, the sliding plate is integrally provided with a sliding block, and the sliding block is slidably arranged in the sliding way; The fence is slidably installed outside the main frame, and the fence is rotatably fixed with the sliding block; the fence is fixed with a first handle away from the opening side of the main frame; The fence and the sliding seat are provided with through holes on the upper and lower parts; the fence is fixed with a position adjusting screw outside; The jacket is arranged on the inner side of the main frame, the sliding rod is movably arranged in the through hole, and the sliding rod is rotatably fixed with the jacket; the rebound instrument is arranged between the jackets and is attached to the outer wall of the rebound instrument through the jackets; The top pressing plate is fixed with a sliding cylinder opposite to the sliding rod, and the sliding rod is embedded and fixed with the sliding cylinder.

2. The construction engineering quality detection device according to claim 1, characterized in that: The lower part of the main frame is rotatably provided with a second handle.

3. The construction engineering quality detection device according to claim 1, characterized in that: Also include a cross plate, the cross plate is also provided with a dovetail groove, the bottom surface of the veneer is integrally provided with a dovetail sliding block, the dovetail sliding block is slidably installed with the dovetail groove, and the cross plate is provided with an end cap.

4. The construction engineering quality detection device according to claim 1, characterized in that: The top pressing plate is fixed with a sliding cylinder opposite to the sliding rod, and the sliding rod is embedded and fixed with the sliding cylinder.

5. The construction engineering quality detection device according to claim 1, characterized in that: The top of the sliding seat is fixed with a cross plate through bolts, and the bottom surface of the cross plate is provided with a limiting die hole embedded with the rebound instrument.

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