Building material hardness detection device

Abstract

The utility model relates to the technical field of strength detection, in particular to a building material hardness detection device. Comprising a frame and at least two rebound apparatuses, the frame can abut against the surface of a concrete building material, the rebound apparatuses are installed on the inner side of the frame, elastic rods are installed on the rebound apparatuses in a sliding mode, the ends of the elastic rods can abut against the surface of the concrete building material, and a positioning handle is fixedly installed on the side of the frame. A finger slot is formed in the positioning handle; the bouncing rods of the two rebound apparatuses abut against the surface of the concrete at the same time, compared with a conventional mode that a single rebound apparatus is used, relative deflection of the rebound apparatuses and the surface of the concrete can be avoided without consuming excessive force, and therefore vertical stability between the rebound apparatuses and the surface of the concrete can be easily kept; the hand fatigue degree of an operator is reduced, and the detection efficiency of the concrete material strength is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of strength detection, in particular to a building material hardness detection device. Background Art

[0002] The hardness test of building materials is an indispensable part of ensuring the quality of the project. It is directly related to the stability and long-term durability of the building structure. Through strict hardness testing, the material performance can be effectively evaluated, thereby ensuring the overall quality and safety of the building and providing users with a safe and reliable living and working environment.

[0003] In the prior art, the hardness of concrete materials is mainly tested by means of a handheld rebound tester, in which the impact rod of the rebound tester hits the concrete surface and measures the distance that the impact rod is rebounded, which is used as an indicator for the hardness test of the concrete material. During the test, it is necessary to control the rebound tester to vertically impact the concrete surface. However, since the rebound tester generates a reaction force during the use of the rebound tester, the hand-held stability of the instrument is affected and the fatigue of the operator is increased, thereby adversely affecting the vertical state between the rebound tester and the concrete surface, thereby reducing the test efficiency. Therefore, the present application provides a building material hardness testing device. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a building material hardness testing device, which can maintain the vertical stability between the rebound tester and the concrete surface, reduce the operator's hand fatigue, and improve the detection efficiency of the concrete material strength.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Provided is a building material hardness testing device, comprising a frame and a rebound tester; the frame can be pressed against the surface of a concrete building material, the rebound tester is installed on the inner side of the frame, at least two rebound testers are provided, a striking rod is slidably installed on the rebound tester, the end of the striking rod can be pressed against the surface of the concrete building material, a positioning handle is fixedly installed on the side of the frame, and a finger slot is provided on the positioning handle.

[0007] Furthermore, a curved surface is provided in the middle of one side of the frame that abuts against the building material, and a flat pad is detachably and fixedly installed in the curved surface.

[0008] Furthermore, the other side of the frame that abuts against the building material is fixedly connected to two guide frames, at least one hoop is slidably mounted on each of the two guide frames, and the rebound hammer is fixedly mounted in the hoop.

[0009] Furthermore, a screw rod and a motor for controlling the rotation of the screw rod are installed on the guide frame.

[0010] Furthermore, a frame connecting seat is installed on the positioning handle, and the frame connecting seat is rotatably connected to the base through two connecting rods of equal length, and the base is detachably fixedly installed on the telescopic arm of the crane.

[0011] Furthermore, a slide groove is arranged on the connecting rod at the lower side, a hydraulic cylinder is installed on the base, a sliding column is fixedly installed on the movable end of the hydraulic cylinder, and the sliding column is slidably connected in the slide groove.

[0012] Furthermore, the connecting rod is composed of a first connecting rod and a second connecting rod which are slidably connected to each other, and the first connecting rod and the second connecting rod are rotatably connected to the base and the frame connecting seat respectively.

[0013] Furthermore, the frame connection seat is rotatably connected to the positioning handle, and a rubber damping sleeve is arranged in the shaft hole connecting the positioning handle and the frame connection seat.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the building material hardness testing device of the utility model example, at least two rebound hammers are arranged on the frame, and the impact rods of the two rebound hammers can abut against the concrete surface at the same time. Compared with the conventional method of using a single rebound hammer, the relative deflection of the rebound hammer and the concrete surface can be avoided without consuming too much force, thereby making it easy to maintain the vertical stability between the rebound hammer and the concrete surface, reducing the operator's hand fatigue and improving the detection efficiency of the concrete material strength.

[0016] 2. In the building material hardness testing device of the utility model example, the operator holds the positioning handles on both sides of the frame with both hands respectively, adjusts the distance between the frame and the concrete surface, and uses at least two rebound testers to test the hardness of the concrete building materials at the same time; the fingers can be inserted into the corresponding finger slots to improve the holding effect.

[0017] 3. In the building material hardness detection device of the example of the utility model, a flat pad is detachably fixedly installed in the arc surface, and the flat pad is removed so that the frame can abut against the cylindrical or flat concrete surface.

[0018] 4. In the building material hardness testing device of the utility model example, the rebound hammer is fixedly installed in the hoop sleeve, and the hoop sleeve is slidably installed on the guide frame. Two hoop sleeves can be installed on each guide frame, so that the impact rods of four rebound hammers can abut against the concrete surface at the same time, so that the verticality maintaining effect between the rebound hammer and the concrete surface is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 A schematic diagram of the structure of the frame and the rebound hammer provided in the embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the structure of the frame, the flat pad and the rebound tester provided in the embodiment of the utility model;

[0022] Figure 3 A schematic diagram of the structure of a rebound tester, a hoop sleeve and a screw rod provided in an embodiment of the utility model;

[0023] Figure 4 This is a schematic structural diagram of a base, a first connecting rod and a second connecting rod provided in an embodiment of the utility model.

[0024] In the figure: 11 frame, 12 positioning handle, 13 finger slot, 14 arc surface, 15 flat pad, 21 rebound tester, 22 impact rod, 23 hoop, 24 guide frame, 25 screw rod, 26 motor, 31 base, 32 first connecting rod, 33 second connecting rod, 34 frame connecting seat, 35 slide groove, 36 hydraulic cylinder. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0027] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the drawings.

[0031] Embodiment 1:

[0032] like Figure 1 As shown, this embodiment provides a building material hardness testing device, including a frame 11 and a rebound test hammer 21; the frame 11 can be against the surface of a concrete building material, the rebound test hammer 21 is installed on the inner side of the frame 11, at least two rebound test hammers 21 are provided, a rebound rod 22 is slidably installed on the rebound test hammer 21, the end of the rebound rod 22 can be against the surface of a concrete building material, and a positioning handle 12 is fixedly installed on the side of the frame 11.

[0033] Wherein, a finger slot 13 is provided on the positioning handle 12 to improve the holding effect.

[0034] When using the building material hardness testing device of the present application to test the hardness of concrete building materials: hold the positioning handles 12 on both sides of the frame 11 with both hands, adjust the distance between the frame 11 and the concrete surface, and use at least two rebound testers 21 to test the hardness of the concrete building materials;

[0035] During this process, the impact rods 22 of the two rebound test hammers 21 can abut against the concrete surface at the same time. Compared with the conventional method of using a single rebound test hammer 21, the relative deflection of the rebound test hammer 21 and the concrete surface can be avoided without consuming too much force, thereby making it easy to maintain the vertical stability between the rebound test hammer 21 and the concrete surface, reducing the operator's hand fatigue and improving the efficiency of concrete material strength detection.

[0036] In this embodiment, the rebound hammer 21 is fixedly mounted on the inner side of the frame 11 via a bracket.

[0037] Embodiment 2:

[0038] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 1-3 As shown, in this embodiment, the other side of the frame 11 that abuts against the building material is fixedly connected to two guide frames 24, and at least one hoop 23 is slidably mounted on each of the two guide frames 24;

[0039] The rebound test hammer 21 is fixedly installed in the hoop 23. The guide frame 24 is provided with a screw rod 25 and a motor 26 for controlling the rotation of the screw rod 25. The motor 26 is started to control the rotation of the screw rod 25, thereby driving the hoop 23 and the rebound test hammer 21 to move together and adjusting the relative position of the rebound test hammer 21 and the frame 11.

[0040] Two hoops 23 are respectively installed on each guide frame 24, so that the impact rods 22 of the four rebound hammers 21 can abut against the concrete surface at the same time, so that the verticality maintenance effect between the rebound hammer 21 and the concrete surface is further improved.

[0041] Embodiment three:

[0042] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 1-2 As shown, in this embodiment, a flat plate 15 is detachably fixedly installed in the arc surface 14. The flat plate 15 is removed so that the frame 11 can abut against a cylindrical or flat concrete surface.

[0043] Embodiment 4:

[0044] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 4 As shown, in this embodiment, a frame connecting seat 34 is installed on the positioning handle 12, and the frame connecting seat 34 is rotatably connected to the base 31 through two connecting rods of equal length. The base 31 is detachably fixed on the telescopic arm of the crane. The telescopic arm of the crane is used to move the frame 11 to a high place to perform hardness tests on various height positions of the concrete pier.

[0045] The base 31 , the frame connecting seat 34 and the two connecting rods constitute a parallelogram mechanism so as to maintain a constant relative position between the base 31 and the frame connecting seat 34 .

[0046] A slide groove 35 is provided on the connecting rod located at the lower side, and a hydraulic cylinder 36 is installed on the base 31. A sliding column is fixedly installed on the movable end of the hydraulic cylinder 36. The sliding column is slidably connected in the slide groove 35. The hydraulic cylinder 36 is started to control the sliding column to slide in the slide groove 35, thereby driving the two connecting rods to rotate synchronously and fine-tuning the detection position of the rebound tester 21.

[0047] The connecting rod is composed of a first connecting rod 32 and a second connecting rod 33 which are slidably connected to each other. The first connecting rod 32 and the second connecting rod 33 are rotatably connected to the base 31 and the frame connecting seat 34 respectively, so as to improve the storage convenience of the device.

[0048] In order to increase the use effect of the device, the frame connecting seat 34 is rotatably connected to the positioning handle 12, and a rubber damping sleeve is arranged in the axial hole connecting the positioning handle 12 and the frame connecting seat 34, so that the positioning handle 12 and the frame connecting seat 34 can maintain a constant relative angle, so that the device can perform hardness detection on the surface of concrete building materials with a slope, thereby improving the use effect of the device.

[0049] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

[0050] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.

Claims

1. A building material hardness detection device, characterized in that: The invention comprises a frame (11) capable of abutting against the surface of a concrete building material, and at least two rebound hammers (21) mounted on the inner side of the frame (11), a rebound rod (22) being slidably mounted on the rebound hammer (21), and an end of the rebound rod (22) being capable of abutting against the surface of the concrete building material, and a positioning handle (12) being fixedly mounted on the side of the frame (11), and a finger slot (13) being provided on the positioning handle (12).

2. The building material hardness detection device according to claim 1, characterized in that: A curved surface (14) is provided in the middle of one side of the frame (11) that contacts the building material, and a flat pad (15) is detachably fixedly mounted in the curved surface (14).

3. The building material hardness detection device according to claim 1, characterized in that: A guide frame (24) is fixedly connected to the other side of the frame (11) that abuts against the building material, a hoop (23) is slidably mounted on the guide frame (24), and the rebound tester (21) is fixedly mounted in the hoop (23).

4. The building material hardness detection device according to claim 3, characterized in that: A screw rod (25) and a motor (26) for controlling the rotation of the screw rod (25) are mounted on the guide frame (24).

5. The building material hardness detection device according to claim 1, characterized in that: A frame connecting seat (34) is mounted on the positioning handle (12); the frame connecting seat (34) is rotatably connected to the base (31) via two connecting rods of equal length; and the base (31) is detachably fixedly mounted on the telescopic arm of the crane.

6. The building material hardness detection device according to claim 5, characterized in that: A slide groove (35) is provided on the connecting rod located at the lower side, a hydraulic cylinder (36) is installed on the base (31), a sliding column is fixedly installed on the movable end of the hydraulic cylinder (36), and the sliding column is slidably connected in the slide groove (35).

7. The building material hardness detection device according to claim 5, characterized in that: The connecting rod is composed of a first connecting rod (32) and a second connecting rod (33) which are slidably connected to each other. The first connecting rod (32) and the second connecting rod (33) are rotatably connected to the base (31) and the frame connecting seat (34) respectively.

8. The building material hardness detection device according to claim 5, characterized in that: The frame connection seat (34) is rotatably connected to the positioning handle (12), and a rubber damping sleeve is arranged in the shaft hole connecting the positioning handle (12) and the frame connection seat (34).

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