A concrete rebound detection device

Abstract

The utility model belongs to the technical field of concrete rebound detection, in particular to a concrete rebound detection device, comprising a limit assembly for fixing on two side walls of precast concrete, on which a rebound hammer auxiliary assembly is vertically fixedly installed by bolts, and because the rebound hammer auxiliary assembly is vertically arranged on the limit assembly, the rebound hammer is driven to move forward and backward by a cylinder, and the rebound hammer is matched with a sliding rod through a sliding hole on a rebound hammer bracket, so that the rebound hammer always remains perpendicular to the detection surface of the concrete, the detection accuracy is high, and there is no need to manually operate the rebound hammer, which saves time and labor, and the detection efficiency is high. The sliding hole on the rebound hammer bracket is matched with the sliding rod, so that the rebound hammer always remains perpendicular to the detection surface of the concrete, the detection accuracy is high, and there is no need to manually operate the rebound hammer, which saves time and labor, and the detection efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete rebound detection, and in particular relates to concrete rebound detection equipment. Background Art

[0002] The concrete rebound tester uses a spring to drive a hammer and hit the concrete surface through a hitting rod to generate a restoring force of instantaneous elastic deformation. The hammer drives the pointer to rebound and indicates the rebound distance. The rebound value is used as one of the indicators related to the compressive strength of concrete to estimate the compressive strength of concrete;

[0003] When the concrete rebound tester is used to test the compressive strength of concrete, it is necessary to first mark the concrete surface to be tested, and then the staff will hold the shell with both hands and perform spring pressure tests on the test grids in turn. To improve the accuracy of the test, the staff will need to place the rebound tester vertically to the concrete wall. Due to the instability of manual operation, the accuracy of using the concrete rebound tester to test the compressive strength of concrete is reduced. In addition, manual pressure is required each time, which is time-consuming and labor-intensive, and the test efficiency is low. Utility Model Content

[0004] To solve the problems raised in the above background technology. The utility model provides a concrete rebound detection device, including a limit assembly for fixing on both side walls of precast concrete, on which a rebound tester auxiliary assembly is vertically fixed by bolts;

[0005] The rebound hammer auxiliary component comprises a U-shaped bracket fixed on the limiter component, a rebound hammer bracket is fixed on the top of the U-shaped bracket, and a rebound hammer is installed on the rebound hammer bracket.

[0006] As a concrete rebound detection device of the utility model, preferably, sliding holes are opened at both ends of the rebound tester bracket, sliding rods are arranged inside the sliding holes, a top plate is fixed between the tail ends of the two sliding rods, and a cylinder is fixedly installed on the top plate.

[0007] As a concrete rebound detection device of the utility model, preferably, the sliding hole matches the sliding rod, and the sliding rod slides back and forth inside the sliding hole, the top end of the piston rod of the cylinder fits with the tail end of the rebound tester, and a spring is sleeved on the sliding rod at the front end of the rebound tester bracket.

[0008] As a concrete rebound detection device of the utility model, preferably, the limit assembly includes a U-shaped support, a rotating rod is arranged between the left and right ends of the U-shaped support through a bearing, and a pair of guide rods for guiding.

[0009] As a concrete rebound detection device of the utility model, preferably, the left and right ends of the rotating rod are respectively provided with external threads with opposite thread directions, and the two ends of the rotating rod are respectively screwed with a left clamping block and a right clamping block.

[0010] As a concrete rebound detection device of the utility model, preferably, the left clamp block and the right clamp block are both sleeved on the guide rod, and the left clamp block and the right clamp block both slide left and right on the guide rod.

[0011] As a concrete rebound detection device of the utility model, preferably, a reduction motor is installed at the right end of the U-shaped support, and the rotor of the reduction motor is fixedly connected to the rotating rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The driving reduction motor drives the rotating rod to rotate. Since the threads at both ends of the rotating rod are in opposite directions, and the left clamp block and the right clamp block are respectively screwed on the threads in different directions at both ends of the rotating rod, the rotation of the rotating rod drives the left clamp block and the right clamp block to move in opposite directions, so that the left clamp block and the right clamp block clamp and limit the two side walls of the precast concrete. Since the rebound hammer auxiliary component is vertically arranged on the limit component, the rebound hammer is driven to move back and forth by the cylinder, and the rebound hammer is matched with the sliding rod through the sliding hole on the rebound hammer bracket, so that the rebound hammer always remains perpendicular to the detection surface of the concrete, the detection accuracy is high, and there is no need for manual operation of the rebound hammer, which saves time and effort, and has high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the auxiliary components of the rebound tester of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0019] In the figure:

[0020] 1. Limiting assembly; 11. U-shaped support; 12. Rotating rod; 13. Guide rod; 14. Left clamping block; 15. Right clamping block; 16. Reducer motor;

[0021] 2. Rebound hammer auxiliary components; 21. U-shaped bracket; 22. Rebound hammer bracket; 23. Rebound hammer; 24. Slide hole; 25. Slide rod; 26. Top plate; 27. Cylinder; 28. Spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1 As shown;

[0025] A concrete rebound detection device comprises a limit assembly 1 for fixing on two side walls of precast concrete.

[0026] In this implementation scheme: In order to solve the technical problems existing in the prior art, as disclosed in the background technology above, "when the concrete rebound tester is used to test the compressive strength of concrete, it is necessary to first mark the surface of the concrete to be tested, and then the staff holds the shell with both hands and performs spring pressure tests on the test grids in turn. To improve the accuracy of the test, the staff needs to operate the rebound tester vertically to the concrete wall. Due to the instability of manual operation, this reduces the accuracy of using the concrete rebound tester to test the compressive strength of concrete." In terms of actual use, this problem is obviously a real problem that exists and is relatively difficult to solve. In view of this, in order to solve this technical problem, a limit assembly 1 and a rebound tester auxiliary assembly 2 are added on this basis.

[0027] like Figure 1-4 As shown in the figure;

[0028] In combination with the above content, in order to improve the detection accuracy, a rebound tester auxiliary component 2 is vertically fixedly installed on the limit component 1 by bolts;

[0029] The rebound hammer auxiliary component 2 includes a U-shaped bracket 21 fixed on the limiting component 1 , a rebound hammer bracket 22 is fixed on the top of the U-shaped bracket 21 , and a rebound hammer 23 is installed on the rebound hammer bracket 22 .

[0030] In an optional embodiment, sliding holes 24 are opened at both ends of the rebound tester bracket 22, and sliding rods 25 are arranged inside the sliding holes 24. A top plate 26 is fixed between the tail ends of the two sliding rods 25, and a cylinder 27 is fixedly installed on the top plate 26. The sliding holes 24 match the sliding rods 25, and the sliding rods 25 slide back and forth inside the sliding holes 24. The top end of the piston rod of the cylinder 27 is in contact with the tail end of the rebound tester 23, and a spring 28 is sleeved on the sliding rod 25 at the front end of the rebound tester bracket 22.

[0031] In this embodiment, the rebound hammer 23 is driven to move forward and backward by the cylinder 27, and the rebound hammer 23 is matched with the slide rod 25 through the slide hole 24 on the rebound hammer bracket 22, so that the rebound hammer 23 always remains perpendicular to the detection surface of the concrete.

[0032] In an optional embodiment, the limit assembly 1 includes a U-shaped support 11, a rotating rod 12 and a pair of guide rods 13 for guiding are arranged between the left and right ends of the U-shaped support 11 through a bearing, the left and right ends of the rotating rod 12 are respectively provided with external threads with opposite thread directions, and the two ends of the rotating rod 12 are respectively screwed with a left clamp block 14 and a right clamp block 15, the left clamp block 14 and the right clamp block 15 are both sleeved on the guide rod 13, and the left clamp block 14 and the right clamp block 15 both slide left and right on the guide rod 13, and a reduction motor 16 is installed at the right end of the U-shaped support 11, and the rotor of the reduction motor 16 is fixedly connected to the rotating rod 12.

[0033] In this embodiment: the reduction motor 16 is driven to drive the rotating rod 12 to rotate. Since the threads at both ends of the rotating rod 12 are in opposite directions, and the left clamping block 14 and the right clamping block 15 are respectively screwed on the threads in different directions at both ends of the rotating rod 12, the rotation of the rotating rod 12 drives the left clamping block 14 and the right clamping block 15 to move in opposite directions.

[0034] Working principle of this utility model:

[0035] The driving reduction motor 16 drives the rotating rod 12 to rotate. Since the threads at both ends of the rotating rod 12 are in opposite directions, and the left clamp block 14 and the right clamp block 15 are respectively screwed on the threads in different directions at both ends of the rotating rod 12, the rotation of the rotating rod 12 drives the left clamp block 14 and the right clamp block 15 to move in opposite directions, so that the left clamp block 14 and the right clamp block 15 clamp and limit the two side walls of the precast concrete. Since the rebound hammer auxiliary component 2 is vertically arranged on the limiting component 1, the rebound hammer 23 is driven to move forward and backward by the cylinder 27, and the rebound hammer 23 is matched with the sliding rod 25 through the sliding hole 24 on the rebound hammer bracket 22, so that the rebound hammer 23 always remains perpendicular to the detection surface of the concrete, the detection accuracy is high, and there is no need to manually operate the rebound hammer, which saves time and effort and has high detection efficiency.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A concrete rebound detection device, comprising a limit assembly (1) for fixing on both side walls of precast concrete, characterized in that: A rebound hammer auxiliary component (2) is vertically fixedly mounted on the limit component (1) by means of bolts; The rebound hammer auxiliary component (2) comprises a U-shaped bracket (21) fixed on the limiter component (1), a rebound hammer bracket (22) is fixed on the top of the U-shaped bracket (21), and a rebound hammer (23) is installed on the rebound hammer bracket (22).

2. A concrete rebound detection device according to claim 1, characterized in that: Sliding holes (24) are provided at both ends of the rebound tester bracket (22), and sliding rods (25) are arranged inside the sliding holes (24). A top plate (26) is fixed between the tail ends of the two sliding rods (25), and a cylinder (27) is fixedly mounted on the top plate (26).

3. A concrete rebound detection device according to claim 2, characterized in that: The sliding hole (24) matches the sliding rod (25), and the sliding rod (25) slides back and forth inside the sliding hole (24). The top end of the piston rod of the cylinder (27) fits with the rear end of the rebound hammer (23). A spring (28) is sleeved on the sliding rod (25) at the front end of the rebound hammer bracket (22).

4. A concrete rebound detection device according to claim 1, characterized in that: The limiting assembly (1) comprises a U-shaped support (11), a rotating rod (12) and a pair of guide rods (13) for guiding are arranged between the left and right ends of the U-shaped support (11) via bearings.

5. A concrete rebound detection device according to claim 4, characterized in that: The left and right ends of the rotating rod (12) are respectively provided with external threads with opposite thread directions, and the two ends of the rotating rod (12) are respectively screwed with a left clamping block (14) and a right clamping block (15).

6. A concrete rebound detection device according to claim 5, characterized in that: The left clamping block (14) and the right clamping block (15) are both sleeved on the guide rod (13), and the left clamping block (14) and the right clamping block (15) slide left and right on the guide rod (13).

7. A concrete rebound detection device according to claim 4, characterized in that: A reduction motor (16) is installed at the right end of the U-shaped support (11), and the rotor of the reduction motor (16) is fixedly connected to the rotating rod (12).

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