Concrete strength detection rebound apparatus

Abstract

The utility model relates to the technical field of concrete detection, and provides a concrete strength detection rebound apparatus which comprises a mounting rack and a rebound apparatus main body, the mounting rack and the rebound apparatus main body are provided with an operation connecting assembly, a split supporting assembly is arranged at the bottom of the mounting rack, a connecting rod is fixed on the side surface of the mounting rack, and one end of the connecting rod is provided with a sliding block. The sliding block and the connecting rod are sleeved and connected with a pressing frame in a sliding mode, and a supporting spring is arranged in the pressing frame. By means of the technical scheme, the problems that in the prior art, an existing rebound apparatus is inconvenient to use, the rebound apparatus is held by hand to detect concrete, the handheld mode cannot ensure that the rebound apparatus is kept perpendicular to the concrete wall face, measurement errors are likely to occur, and the detection accuracy is high are solved. And a concrete wall at a relatively high position cannot be effectively detected.

Description

Technical Field

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

[0002] With people's concern about engineering quality and the rapid development and maturity of non-destructive testing technology, the application of non-destructive testing technology in construction projects has increased. The concrete strength value is the maximum stress that concrete can withstand under certain stress states and working conditions. To accurately measure the strength of concrete, the concrete test block must be loaded to the destruction limit. After obtaining the test value, the specimen has been destroyed. The non-destructive testing method for structural concrete strength is to obtain the destruction stress value without destroying the structure and components. Therefore, the commonly used concrete non-destructive testing technology is the rebound method to measure strength, and the concrete is tested by a rebound hammer.

[0003] The current rebound hammer is inconvenient to use. The detection method is to use a handheld rebound hammer to test the concrete. The handheld method cannot ensure that the vertical angle with the concrete wall is maintained, which easily leads to measurement errors and cannot effectively detect concrete walls at higher positions.

[0004] Therefore, improvements are made to address the above problems. Utility Model Content

[0005] The utility model proposes a concrete strength testing rebound tester, which solves the problem that the existing rebound testers in the related technology are inconvenient to use. The testing method is to use a handheld rebound tester to test the concrete. The handheld method cannot ensure that the vertical angle with the concrete wall is maintained, which easily leads to measurement errors and cannot effectively test concrete walls at higher positions.

[0006] The technical solution of the utility model is as follows:

[0007] A mounting frame and a rebound tester body, wherein the mounting frame and the rebound tester body are provided with an operation connection assembly;

[0008] A split support assembly, wherein the split support assembly is arranged at the bottom of the mounting frame;

[0009] The operating connection assembly includes a connecting rod, which is fixed to the side surface of the mounting frame. A sliding block is arranged at one end of the connecting rod. The sliding block and the external sliding sleeve of the connecting rod are connected to a pressing frame, and a supporting spring is arranged inside the pressing frame.

[0010] As a further technical solution, a mounting seat is provided on the top of the pressing frame, and clamping plates are fixedly connected to both sides of the mounting seat by bolts, and the rebound tester body is fixed between the clamping plates and the mounting seat.

[0011] As a further technical solution, the split support assembly includes a connecting frame, the bottom of the connecting frame is fixed to the bottom of the mounting frame, the bottom of the connecting frame is plugged into an extension frame, the external sliding sleeve of the extension frame is connected to a stabilizing frame, and long holes are opened on both sides of the stabilizing frame.

[0012] As a further technical solution, a cross frame is connected through a long hole between the stabilizing frames, round rods are provided at both ends of the cross frame, the outside of the round rod is slidably connected to a limiting frame, the outside of the round rod is sleeved with a spring, and a number of limiting protrusions are provided on both side surfaces of the mounting frame.

[0013] As a further technical solution, the stabilizing frame is in an L-shaped structure as a whole, and the middle part of the stabilizing frame is an open split structure.

[0014] As a further technical solution, handles are fixedly connected to both ends of the surface of the mounting frame.

[0015] As a further technical solution, the sliding block and the pressing frame are both rectangular structures inside.

[0016] As a further technical solution, a laminating frame is plugged and connected to the top of the mounting frame, and the surface of the laminating frame is an arc-shaped transition structure.

[0017] The working principle and beneficial effects of the utility model are:

[0018] 1. The utility model is provided with an operating connection assembly, which can maintain vertical fit with the concrete surface through the interaction of structures such as the connecting rod, the sliding block, the pressing frame, the supporting spring and the mounting seat. The main body of the rebound tester will not tilt during the detection process, and the accuracy of the measured data can be guaranteed.

[0019] 2. The utility model is provided with a split support assembly. Through the interaction of structures such as an extension frame, a stabilizing frame, a horizontal frame, a round rod, a limit frame, a spring and a limit bump, the rebound tester body can be supported on the ground and can be telescopically adjusted to different heights. It can be operated in a handheld manner, has strong stability and is easy to use, and has good use effect and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a partial axonometric drawing of the utility model;

[0023] Figure 3 This is the axonometric drawing of the utility model;

[0024] Figure 4 It is a partial cross-sectional view of the utility model;

[0025] Figure 5 It is a partial cross-sectional view from another perspective of the utility model;

[0026] In the figure: 1. Mounting frame; 2. Rebound tester body; 3. Operation connection assembly; 3-1. Connecting rod; 3-2. Sliding block; 3-3. Pressing frame; 3-4. Support spring; 3-5. Mounting seat; 3-6. Clamping plate; 4. Split support assembly; 4-1. Connecting frame; 4-2. Extension frame; 4-3. Stabilizing frame; 4-4. Long hole; 4-5. Horizontal frame; 4-6. Round rod; 4-7. Limiting frame; 4-8. Spring; 4-9. Limiting protrusion; 5. Handle; 6. Fitting frame. DETAILED DESCRIPTION

[0027] The following will be combined with 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 of 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.

[0028] like Figure 1~Figure 5 As shown, this embodiment proposes a concrete strength testing hammer, including

[0029] A mounting frame 1 and a rebound tester body 2, wherein the mounting frame 1 and the rebound tester body 2 are provided with an operation connection assembly 3;

[0030] A split support assembly 4, the split support assembly 4 is arranged at the bottom of the mounting frame 1;

[0031] The operating connection assembly 3 includes a connecting rod 3-1, which is fixed on the side surface of the mounting frame 1. A sliding block 3-2 is provided at one end of the connecting rod 3-1. The sliding block 3-2 and the external sliding sleeve of the connecting rod 3-1 are connected to a pressing frame 3-3. A supporting spring 3-4 is provided inside the pressing frame 3-3. A mounting seat 3-5 is provided on the top of the pressing frame 3-3. Clamping plates 3-6 are fixedly connected to the mounting seat 3-5 on both sides by bolts. The rebound tester body 2 is fixed between the clamping plate 3-6 and the mounting seat 3-5.

[0032] In this embodiment, in order to achieve the effect of detecting while maintaining an accurate position with concrete, an operating connection component 3 is designed, a horizontal connecting rod 3-1 is arranged on the surface of the mounting frame 1, a sliding block 3-2 is arranged at one end of the connecting rod 3-1, a pressing frame 3-3 is slidably connected to the outside of the sliding block 3-2 and the connecting rod 3-1, a supporting spring 3-4 is arranged inside the pressing frame 3-3, the supporting spring 3-4 is pressed on the sliding block 3-2, a mounting seat 3-5 and a clamping plate 3-6 fixedly connected by bolts are arranged on the top of the pressing frame 3-3, the rebound tester body 2 is placed between the two clamping plates 3-6, the rebound tester body 2 can be firmly clamped, the mounting frame 1 can fit the wall so that the rebound tester body 2 is perpendicular to the concrete surface, the pressing frame 3-3 can be pushed to make the rebound tester contact the concrete for rebound detection, and after loosening, it can be pushed to reset by the elastic force of the supporting spring 3-4.

[0033] Furthermore, the split support assembly 4 includes a connecting frame 4-1, the bottom of the connecting frame 4-1 is fixed to the bottom of the mounting frame 1, the bottom of the connecting frame 4-1 is plugged and connected to an extension frame 4-2, the external sliding sleeve of the extension frame 4-2 is connected to a stabilizing frame 4-3, long holes 4-4 are opened on both sides of the stabilizing frame 4-3, a cross frame 4-5 is connected through the long holes 4-4 between the stabilizing frames 4-3, round rods 4-6 are arranged at both ends of the cross frame 4-5, the external sliding connection of the round rod 4-6 to a limiting frame 4-7, the external sleeve of the round rod 4-6 is connected to a spring 4-8, and a plurality of limiting protrusions 4-9 are arranged on the inner and outer surfaces of the mounting frame 1.

[0034] In this embodiment, in order to achieve the effect of being able to support on the ground and extend upward to a certain height, a split support assembly 4 is designed, and a connecting frame 4-1 is arranged at the bottom of the fixed frame, and the bottom of the connecting frame 4-1 can be connected to the extension frame 4-2 by plug-in, and the bottom of the extension frame 4-2 is provided with a stabilizing frame 4-3, and the stabilizing frame 4-3 can be telescopic after being connected with the extension frame 4-2, and long holes 4-4 are opened on both sides of the stabilizing frame 4-3, and a cross frame 4-5 is connected between the extension frames 4-2 through the long holes 4-4, and a round rod 4-6 is installed inwardly at the bottom of the cross frame 4-5, and the two ends of the round rod 4-6 are slidably connected to the limiting frame 4-7, and the side surface of the mounting frame 1 is provided with a limiting protrusion 4-9, and the limiting frame 4-7 can be inserted between the limiting protrusions 4-9, so as to limit and fix the cross frame 4-5, maintain the extended length of the extension frame 4-2, and can be adjusted to a certain height at will.

[0035] Furthermore, the stabilizing frame 4 - 3 is an L-shaped structure as a whole, and the middle part of the stabilizing frame 4 - 3 is an open split structure.

[0036] In this embodiment, the L-shaped structure is used to firmly support the stabilizing frame 4 - 3 on the ground, and the split structure with an opening in the middle is used to maintain firm support while coordinating telescopic adjustment.

[0037] Furthermore, handles 5 are fixedly connected to both ends of the surface of the mounting frame 1 .

[0038] In this embodiment, by installing handles 5 on both sides of the surface of the mounting frame 1, the handles 5 can be grasped and rebound detection can be performed when the bottom support is not needed.

[0039] Furthermore, the interiors of the sliding block 3-2 and the pressing frame 3-3 are both rectangular structures.

[0040] In this embodiment, the rectangular structure enables the sliding block 3 - 2 to be connected to the pressing frame 3 - 3 so that the sliding block 3 - 2 can only slide linearly but cannot rotate.

[0041] Furthermore, a laminating frame 6 is plugged and connected to the top of the mounting frame 1, and the surface of the laminating frame 6 is an arc-shaped transition structure.

[0042] In this embodiment, the separately connected fitting frame 6 can be plugged in and out for use. When measuring the surface of a concrete column, the curved surface structure can fit with the columnar structure surface.

[0043] When it is needed, place the rebound tester body 2 on the mounting seat 3-5, install the clamping plates 3-6 on both sides and fix them with bolts, hold the handle 5, fit the mounting frame 1 to the concrete surface, and then push the pressing frame 3-3 to make the rebound tester body 2 contact and shrink for rebound detection. After the detection is completed, release the pressing frame 3-3 and reset it through the elastic force of the supporting spring 3-4. When a higher position detection is required, plug and connect the extension frame 4-2 with the connecting frame 4-1 at the bottom, support the stabilizing frame 4-3 on the ground, and then pull the two limit frames 4-7 toward the middle to separate them from the limit protrusions 4-9, and then pull the extension frame 4-2 upward to a suitable height, and then release the limit protrusions 4-9, and push the limit frame 4-7 to reset and connect it to the limit protrusions 4-9 through the elastic force of the spring 4-8, keep the adjusted height of the extension frame 4-2, and then start the rebound detection. When measuring the columnar concrete surface, insert the fitting frame 6 downward at the top of the mounting frame 1 and use it.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A concrete strength test hammer, characterized in that: include A mounting frame (1) and a rebound tester body (2), wherein the mounting frame (1) and the rebound tester body (2) are provided with an operating connection component (3); A split support assembly (4), wherein the split support assembly (4) is arranged at the bottom of the mounting frame (1); The operating connection assembly (3) comprises a connecting rod (3-1), the connecting rod (3-1) is fixed to the side surface of the mounting frame (1), a sliding block (3-2) is arranged at one end of the connecting rod (3-1), the sliding block (3-2) and the external sliding sleeve of the connecting rod (3-1) are connected to a pressing frame (3-3), and a supporting spring (3-4) is arranged inside the pressing frame (3-3).

2. A concrete strength testing hammer according to claim 1, characterized in that: A mounting seat (3-5) is arranged on the top of the pressing frame (3-3), and clamping plates (3-6) are fixedly connected to both sides of the mounting seat (3-5) by bolts, and the rebound tester body (2) is fixed between the clamping plates (3-6) and the mounting seat (3-5).

3. A concrete strength testing hammer according to claim 1, characterized in that: The split support assembly (4) comprises a connecting frame (4-1), the bottom of the connecting frame (4-1) is fixed to the bottom of the mounting frame (1), the bottom of the connecting frame (4-1) is plugged and connected to an extension frame (4-2), the extension frame (4-2) is externally slidably sleeved and connected to a stabilizing frame (4-3), and long holes (4-4) are provided on both sides of the stabilizing frame (4-3).

4. A concrete strength testing hammer according to claim 3, characterized in that: A cross frame (4-5) is connected between the stabilizing frames (4-3) through a long hole (4-4), round rods (4-6) are provided at both ends of the cross frame (4-5), the round rods (4-6) are externally slidably connected to a limiting frame (4-7), the round rods (4-6) are externally sleeved and connected to a spring (4-8), and a plurality of limiting protrusions (4-9) are provided on both side surfaces of the mounting frame (1).

5. A concrete strength testing rebound tester according to claim 3, characterized in that: The stabilizing frame (4-3) is in an L-shaped structure as a whole, and the middle part of the stabilizing frame (4-3) is an open split structure.

6. A concrete strength testing hammer according to claim 1, characterized in that: Handles (5) are fixedly connected to both ends of the surface of the mounting frame (1).

7. A concrete strength testing hammer according to claim 1, characterized in that: The interiors of the sliding block (3-2) and the pressing frame (3-3) are both rectangular structures.

8. A concrete strength testing rebound tester according to claim 1, characterized in that: The top of the mounting frame (1) is plugged and connected with a laminating frame (6), and the surface of the laminating frame (6) is an arc-shaped transition structure.

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