Assembly structure of concrete rebound apparatus

Abstract

The utility model discloses an assembling structure of a concrete resiliometer, which belongs to the technical field of concrete strength testing and comprises a base, universal wheels are fixedly assembled at four corners of the bottom of the base, a lifting mechanism is fixedly assembled at the top of the base, and an assembling frame is fixedly assembled at the top of the lifting mechanism. Through a semi-automatic testing method, the operation process of the concrete resiliometer can be standardized and simplified, and only the base needs to be controlled to move in a short distance in the testing process; and then the lifting mechanism is controlled to drive the assembling frame to adjust the height position, so that the rebound instrument can be aligned to the corresponding testing point position in the testing area, the overall strength of manual operation is reduced, and the situation that the reading is inaccurate due to the fact that manual fatigue operation is conducted on too many testing point positions is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete strength testing, in particular to an assembly structure of a concrete rebound tester. Background Art

[0002] Concrete strength testing is an important project in engineering quality inspection projects, which has a significant impact on engineering quality and structural safety. The rebound method is an important non-destructive testing method for testing the compressive strength of concrete, and the concrete rebound test hammer is a testing device that uses the rebound method to test the strength of concrete. The rebound test hammer is based on spring energy storage technology and measures the compressive strength of concrete specimens by hitting them. When measuring the rebound value, the axis of the rebound test hammer should always be perpendicular to the concrete detection surface, the position of the rebound test hammer must be located in the measurement area, and 16 or 12 rebound values ​​must be read in one measurement area. Most of the existing testing methods use manually controlled rebound test hammers for testing. Due to the large number of test points, fatigue operation is prone to occur during manual testing, resulting in errors in the readings of the rebound test hammer, which in turn affects the accuracy of the concrete strength test in the overall area. To this end, we propose an assembly structure for a concrete rebound test hammer. Utility Model Content

[0003] The utility model aims to provide an assembly structure of a concrete rebound test hammer to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical solutions: an assembly structure of a concrete rebound test hammer, comprising a base, wherein universal wheels are fixedly mounted at the four corners of the bottom of the base, a lifting mechanism is fixedly mounted on the top of the base, and an assembly frame is fixedly mounted on the top of the lifting mechanism;

[0005] The assembly frame comprises an assembly frame body, a fixing frame is integrally formed in the assembly frame body, a sliding frame is slidably connected to the top of the fixing frame, and a hydraulic telescopic rod is fixedly assembled between the sliding frame and the fixing frame.

[0006] Preferably, the fixing frame is L-shaped, a reinforcing block is fixedly assembled between the fixing frame and the assembly frame body, a limiting groove is provided on the side wall of the fixing frame, the bottom of the sliding frame is fixedly connected to the limiting block, and the limiting block is slidably connected in the limiting groove.

[0007] Preferably, the surface of the sliding frame is detachably fixedly assembled with a first U-shaped buckle and a second U-shaped buckle by means of fixing screws.

[0008] Preferably, the lifting mechanism includes a bottom frame, the bottom frame is fixedly connected to the surface of the base, a driving motor is fixedly installed in the bottom frame, a screw sleeve is rotatably connected at the top center of the bottom frame, the output end of the driving motor is fixedly connected to the bottom of the screw sleeve, a lifting screw is threadedly connected in the screw sleeve, the top of the lifting screw is fixedly connected to the bottom of the assembly frame, the bottom of the assembly frame is fixedly connected to a limiting shaft, the limiting shaft is inserted into a limiting tube, and the limiting tube is fixedly connected in the bottom frame.

[0009] Preferably, the number of the limiting shafts is at least four, and the four limiting shafts are located at the four corners of the bottom of the assembly frame. The number and positions of the limiting tubes correspond to those of the limiting shafts, respectively.

[0010] Preferably, a hydraulic control box is fixedly mounted on the top of the base, and a connecting pipe is fixedly connected between the hydraulic control box and the hydraulic telescopic rod.

[0011] Preferably, the top of the base is fixedly equipped with relatively distributed counterweight grooves, the counterweight grooves are filled with counterweight blocks, and the top of the base is fixedly connected with relatively distributed handle frames.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: an assembly structure of a concrete rebound test hammer, the elevation position of the test can be adjusted by a lifting mechanism, and then the test rod of the rebound test hammer is brought into contact with the wall surface in the test area during the movement of the sliding frame driven by the hydraulic telescopic rod, the rebound test hammer is driven to reset after the reading is stable, and then the next test point is tested. The utility model can standardize and simplify the operation process of the concrete rebound test hammer through a semi-automatic testing method, and during the test, it is only necessary to control the base to move a short distance, and then control the lifting mechanism to drive the assembly frame to adjust the height position so that the rebound test hammer can be aligned with the corresponding test point in the test area, thereby reducing the overall intensity of manual operation and avoiding inaccurate readings caused by manual fatigue operation of too many detection points. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front perspective view of the utility model.

[0014] Figure 2 It is a rear perspective view of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the lifting mechanism of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the assembly rack of the utility model.

[0017] Figure 5It is a partial cross-sectional view of the assembly rack of the utility model.

[0018] Figure 6 It is a structural schematic diagram of the concrete rebound tester of the utility model being fixedly connected with the sliding frame.

[0019] Figure 7 This is a schematic diagram of the utility model after the sliding frame is in action.

[0020] In the figure: 1. base; 2. universal wheel; 3. lifting mechanism; 31. bottom frame; 32. driving motor; 33. screw sleeve; 34. lifting screw; 35. limit shaft; 36. limit pipe; 4. assembly frame; 41. assembly frame body; 42. fixed frame; 43. reinforcement block; 44. sliding frame; 45. hydraulic telescopic rod; 46. fixing screw; 47. first U-shaped buckle; 48. second U-shaped buckle; 5. limit block; 6. limit slot; 7. hydraulic control box; 8. connecting pipe; 9. counterweight slot; 10. counterweight block; 11. handle frame. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The utility model provides a technical solution: an assembly structure of a concrete rebound tester, comprising a base 1, wherein universal wheels 2 are fixedly assembled at the four corners of the bottom of the base 1, and the universal wheels 2 are arranged to facilitate the movement of the base 1, and a lifting mechanism 3 is fixedly assembled on the surface of the base 1, and an assembly frame 4 is fixedly connected to the top of the lifting mechanism 3, and the assembly frame 4 is used for the assembly and fixation of the concrete rebound tester, and the test height of the concrete rebound tester can be adjusted by the lifting mechanism 3, and the concrete rebound tester can be driven to move forward during the test through the relevant structure in the assembly frame 4, so as to detect the strength of the concrete. The overall assembly structure adopts a semi-automatic design, which makes the test process of the operator simpler compared with the traditional process of independently using the concrete rebound tester to test the strength of the concrete, and saves the operator's physical energy consumption during the test.

[0023] like Figure 3As shown in, the lifting mechanism 3 includes a bottom frame 31, a driving motor 32 is fixedly installed in the bottom frame 31, a screw sleeve 33 is rotatably connected at the top center of the bottom frame 31, the output end of the driving motor 32 is fixedly connected to the bottom of the screw sleeve 33 through a coupling, the driving motor 32 is electrically connected to an external power supply and an external controller, and the output end of the driving motor 32 can be controlled by the external controller to drive the screw sleeve 33 to rotate in different directions, a lifting screw 34 is threaded in the screw sleeve 33, the top of the lifting screw 34 is fixedly connected to the bottom of the assembly frame 4, and the bottom of the assembly frame 4 is fixedly connected to a limiting shaft 35, which is inserted into a limiting tube 36, and through the cooperation of the limiting shaft 35 and the limiting tube 36, the lifting screw 34 can be lifted and lowered along the screw sleeve 33 during the rotation of the screw sleeve 33.

[0024] like Figure 1 and Figure 3 As shown in the figure, there are four limit shafts 35, which are distributed at the four corners of the bottom of the assembly frame 4. The number and positions of the limit tubes 36 correspond to the limit shafts 35. By setting four groups of limit shafts 35 and limit tubes 36, the stability of the moving stroke of the assembly frame 4 during the height position adjustment process is increased.

[0025] like Figure 4 and Figure 5 As shown in the figure, the assembly frame 4 includes an assembly frame body 41, a fixing frame 42 is integrally formed in the assembly frame body 41, and the fixing frame 42 is L-shaped. A reinforcing block 43 is welded and fixed between the fixing frame 42 and the assembly frame body 41. The reinforcing block 43 is provided to increase the stability of the connection and fixation between the fixing frame 42 and the assembly frame body 41. The top of the fixing frame 42 is slidably connected with a sliding frame 44. The concrete rebound test hammer is detachably fixedly assembled in the sliding frame 44. A hydraulic telescopic rod 45 is fixedly assembled between the sliding frame 44 and the fixed frame 42. The hydraulic telescopic rod 45 drives the sliding frame 44 to move forward, so that the concrete rebound test hammer located in the sliding frame 44 can be brought into contact with the wall surface to test the strength of the concrete.

[0026] like Figure 6 As shown in the figure, the top of the sliding frame 44 is detachably fixedly equipped with a first U-shaped buckle 47 and a second U-shaped buckle 48 by means of fixing screws 46. The concrete rebound test hammer is detachably fixed in the sliding frame 44 by means of the first U-shaped buckle 47 and the second U-shaped buckle 48. The mutual cooperation of the first U-shaped buckle 47 and the second U-shaped buckle 48 can increase the stability of the connection and fixation between the concrete rebound test hammer and the sliding frame 44 during the movement of the sliding frame 44. After completing the concrete strength test, the concrete rebound test hammer needs to be disassembled to facilitate the inspection and calibration of the concrete rebound test hammer when it is used next time, thereby ensuring the accuracy of the test.

[0027] like Figure 4 and Figure 6 As shown in the figure, a limiting block 5 is integrally formed at the bottom of the sliding frame 44, and a limiting groove 6 is provided on the side wall of the fixed frame 42. The limiting block 5 is slidably connected in the limiting groove 6. Through the mutual cooperation between the limiting block 5 and the limiting groove 6, the stability and accuracy of the travel of the sliding frame 44 during the movement along the fixed frame 42 can be increased.

[0028] like Figure 1 and Figure 2 As shown in the figure, a hydraulic control box 7 is fixedly installed on the surface of the base 1, a connecting pipe 8 is fixedly connected between the hydraulic control box 7 and the hydraulic telescopic rod 45, the hydraulic control box 7 is electrically connected to an external power supply and an external controller, hydraulic oil is stored in the hydraulic control box 7, and an oil pump is installed on the top of the hydraulic control box 7, the oil pump supplies the oil in the hydraulic control box 7 to the hydraulic telescopic rod 45 through the connecting pipe 8, completes the control of the extension and retraction of the output end of the hydraulic telescopic rod 45, and the external controller can control the switching of the hydraulic control box 7 to the oil supply pipeline in the hydraulic telescopic rod 45.

[0029] like Figure 1 and Figure 2 As shown in the figure, the surface of the base 1 is fixedly equipped with a counterweight groove 9, and the counterweight groove 9 is filled with a counterweight block 10. When the test needs to be carried out, the stability of the base 1 and the overall structure of the utility model can be enhanced by adding the counterweight block 10, so that the base 1 will not be offset in the process of the sliding frame 44 driving the concrete rebound tester to contact the test concrete.

[0030] A handle frame 11 arranged opposite to each other is welded and fixed on the surface of the base 1 , and the test position of the base 1 and the entire structure can be easily adjusted by the handle frame 11 .

[0031] Working principle: Figure 1 and Figure 7 As shown in the figure, in the process of testing the strength of concrete, it is necessary to test the rebound values ​​of 16 or 12 positions in an area by a concrete rebound tester. When the utility model is used for testing, the base 1 is first moved to the pre-test position by the handle frame 11, and then the concrete rebound tester is inspected and calibrated and fixed in the sliding frame 44 by the first U-shaped buckle 47 and the second U-shaped buckle 48. By controlling the action of the driving motor 32 in the lifting mechanism 3, the test height of the concrete rebound tester can be adjusted. After reaching the calibrated test height, the hydraulic telescopic rod 45 is controlled to drive the sliding frame 44 to move forward, so that the concrete rebound tester contacts the concrete wall at the test position. After the reading of the concrete rebound tester is stable, the hydraulic telescopic rod 45 is controlled to drive the sliding frame 44 to move backward, and the test rod of the concrete rebound tester is reset. Then, the test positions in the area are tested in turn to obtain the required test data.

Claims

1. An assembly structure of a concrete rebound test hammer, comprising a base (1), wherein universal wheels (2) are fixedly mounted at the four corners of the bottom of the base (1), characterized in that: A lifting mechanism (3) is fixedly mounted on the top of the base (1), and an assembly frame (4) is fixedly mounted on the top of the lifting mechanism (3); The assembly frame (4) comprises an assembly frame body (41), a fixing frame (42) is integrally formed in the assembly frame body (41), a sliding frame (44) is slidably connected to the top of the fixing frame (42), and a hydraulic telescopic rod (45) is fixedly mounted between the sliding frame (44) and the fixing frame (42).

2. The assembly structure of a concrete rebound test hammer according to claim 1, characterized in that: The fixed frame (42) is L-shaped, a reinforcing block (43) is fixedly mounted between the fixed frame (42) and the assembly frame body (41), a limiting groove (6) is provided on the side wall of the fixed frame (42), the bottom of the sliding frame (44) is fixedly connected to the limiting block (5), and the limiting block (5) is slidably connected in the limiting groove (6).

3. The assembly structure of a concrete rebound test hammer according to claim 1, characterized in that: The surface of the sliding frame (44) is detachably fixedly assembled with a first U-shaped buckle (47) and a second U-shaped buckle (48) via fixing screws (46).

4. The assembly structure of a concrete rebound test hammer according to claim 1, characterized in that: The lifting mechanism (3) comprises a bottom frame (31), the bottom frame (31) being fixedly connected to the surface of the base (1), a driving motor (32) being fixedly mounted in the bottom frame (31), a screw sleeve (33) being rotatably connected at the top center of the bottom frame (31), an output end of the driving motor (32) being fixedly connected to the bottom of the screw sleeve (33), a lifting screw (34) being threadedly connected in the screw sleeve (33), a top of the lifting screw (34) being fixedly connected to the bottom of an assembly frame (4), a limiting shaft (35) being fixedly connected to the bottom of the assembly frame (4), the limiting shaft (35) being inserted into a limiting tube (36), and the limiting tube (36) being fixedly connected in the bottom frame (31).

5. The assembly structure of a concrete rebound test hammer according to claim 4, characterized in that: The number of the limiting shafts (35) is at least four, and the four limiting shafts (35) are located at the four corners of the bottom of the assembly frame (4). The number and positions of the limiting tubes (36) correspond to those of the limiting shafts (35).

6. The assembly structure of a concrete rebound test hammer according to claim 1, characterized in that: A hydraulic control box (7) is fixedly mounted on the top of the base (1), and a connecting pipe (8) is fixedly connected between the hydraulic control box (7) and the hydraulic telescopic rod (45).

7. The assembly structure of a concrete rebound test hammer according to claim 1, characterized in that: The top of the base (1) is fixedly equipped with counterweight grooves (9) that are distributed relatively to each other, the counterweight grooves (9) are filled with counterweight blocks (10), and the top of the base (1) is fixedly connected with handle frames (11) that are distributed relatively to each other.

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