Concrete strength detection device

Abstract

The utility model discloses a concrete strength detection device which comprises an installation frame, a dovetail groove is annularly formed in the inner side wall of the installation frame, two dovetail blocks are symmetrically arranged in the dovetail groove in a sliding mode, a positioning ring is arranged between the two dovetail blocks, the positioning ring and the dovetail blocks are connected through a sliding mechanism, and the inner section of the positioning ring is in a horn shape with an upward opening. The guide barrel is fixedly connected with the side wall of the dovetail block, a T-shaped sliding rod is slidably arranged in the guide barrel in an attached mode, one end of the T-shaped sliding rod penetrates out of the guide barrel and is fixedly connected with the outer wall of the positioning ring, the dovetail block guided to slide in the mounting frame is connected with the positioning ring through a sliding mechanism, and the positioning ring can slide in the mounting frame. The shadow of the positioning ring vertically projected to the concrete surface can be moved, the concrete surface detection area is increased, and the concrete strength detection accuracy is improved.

Description

Technical field:

[0001] The utility model relates to the technical field of quality detection, in particular to a concrete strength detection device. Background technology:

[0002] The rebound detection technology refers to the use of a spring-driven heavy hammer to drop and hit the column impact rod to bounce the concrete surface and detect the rebound distance. The obtained rebound data value can accurately reflect the concrete strength index.

[0003] The existing concrete strength testing device is mainly composed of a mounting frame and a plurality of positioning rings. The plurality of positioning rings are fixed in the mounting frame to support the column impact rod. The mounting frame is indirectly driven to move by a motor, and the mounting frame drives the column impact rod in the positioning ring to move and fit the concrete surface. When testing different points of the concrete, the column impact rod needs to be pulled out and inserted into the corresponding positioning ring. The plurality of positioning rings have thick walls, and the shadow surface of the concrete surface projected vertically by the positioning ring cannot be detected. The detection area is fixed, which reduces the accuracy of the concrete strength test. Utility model content:

[0004] To this end, the purpose of the utility model is to provide a concrete strength detection device to overcome the existing technology because the existing concrete strength detection device is mainly composed of a mounting frame and a plurality of positioning rings, and the plurality of positioning rings are fixed in the mounting frame to support the column impact rod. When detecting different points of the concrete, it is necessary to pull out the column impact rod and insert it into the corresponding positioning ring. The plurality of positioning rings have thick walls, and the shadow surface of the concrete surface vertically projected by the positioning ring cannot be detected. The detection area is fixed, thereby reducing the accuracy of concrete strength detection.

[0005] The utility model is implemented by the following technical solutions:

[0006] A concrete strength detection device comprises a mounting frame, wherein the inner side wall of the mounting frame is provided with a dovetail groove in an annular manner, two dovetail blocks are symmetrically slidably arranged in the dovetail groove, a positioning ring is arranged between the two dovetail blocks, the positioning ring is connected to the dovetail block by a sliding mechanism, and the positioning ring can slide in the mounting frame.

[0007] Preferably, the inner cross-section of the positioning ring is a trumpet shape with the opening facing upward.

[0008] Preferably, the sliding mechanism includes two guide barrels, the guide barrels are fixedly connected to the side walls of the dovetail block, a T-shaped slide bar is slidably provided inside the guide barrels, one end of the T-shaped slide bar passes through the guide barrels and is fixedly connected to the outer wall of the positioning ring.

[0009] Preferably, a brake mechanism is fixedly connected to the side wall of the guide barrel, and the brake mechanism can perform a limiting operation on the T-shaped slide bar and the dovetail block.

[0010] Preferably, the brake mechanism comprises a brake assembly and a drive assembly, the brake assembly is slidably disposed in the guide barrel, the drive assembly is fixed to the outer wall of the guide barrel, and the drive assembly can drive the brake assembly to slide.

[0011] Preferably, the driving assembly includes a brake ring and a plurality of cylinders, the cylinders are fixed to the side walls of the guide barrels, a sliding rod is slidably provided inside the cylinders, one end of the sliding rod passes through the dovetail block and fits with the inner arc surface of the brake ring, the brake ring is fixed to the inner wall of the mounting frame, the sliding rod is slidably connected to the dovetail block, the other end face of the sliding rod is hinged with a connecting rod, the two connecting rods are hinged to each other, a torsion spring is provided at the hinge of the two connecting rods, a protrusion is fixedly connected to the side wall of the sliding rod, the surface of the protrusion close to the dovetail block end is an arc surface, and the surface of the sliding rod in contact with the brake ring is a frosted surface.

[0012] Preferably, the brake assembly includes a plurality of brake pads, which are slidably arranged in a slide groove, which is provided on the inner wall of a guide barrel, and a tension spring is fixedly connected between the guide barrel and the brake pad, and the tension spring is arranged in the slide groove, one end of the brake pad passes through the guide barrel and fits against the surface of the protrusion, the brake pad is slidably connected to the guide barrel, and the other end of the brake pad fits against the surface of a T-shaped slide bar, and the surface of the T-shaped slide bar in contact with the brake pad is a frosted surface.

[0013] The utility model has the advantages that the dovetail block sliding in the mounting frame is connected to the positioning ring through a sliding mechanism, and the positioning ring can slide in the mounting frame, so that the shadow of the positioning ring vertically projected onto the concrete surface can be moved, thereby increasing the detection area of ​​the concrete surface and improving the accuracy of the concrete strength reduction detection. Description of the drawings:

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is the structural diagram of the utility model;

[0016] Figure 2 This is a schematic structural diagram of an embodiment of the sliding mechanism of the utility model;

[0017] Figure 3 It is a schematic structural diagram of an embodiment of the brake mechanism of the utility model.

[0018] In the figure: mounting frame 1, positioning ring 2, dovetail block 3, guide barrel 4, T-shaped slide bar 5, dovetail groove 6, cylinder 7, slide bar 8, brake ring 9, connecting rod 10, torsion spring 11, tension spring 12, slide groove 13, brake pad 14, and protrusion 15. Specific implementation method:

[0019] In order to make the purpose and advantages of the utility model more clearly understood, the utility model is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0020] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0021] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0022] In addition, it should be noted that in the description of the present invention, 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 those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0023] like Figure 1-Figure 3 As shown, the utility model provides the following technical solutions: a concrete strength detection device, including a mounting frame 1, an inner wall of the mounting frame 1 is provided with a dovetail groove 6 in an annular manner, two dovetail blocks 3 are symmetrically slidably arranged in the dovetail groove 6, a positioning ring 2 is arranged between the two dovetail blocks 3, the positioning ring 2 is connected to the dovetail block 3 by a sliding mechanism, and the positioning ring 2 can slide in the mounting frame 1.

[0024] The inner cross-section of the positioning ring 2 is in the shape of a trumpet with the opening facing upward, so that the column impact rod can be easily inserted into the positioning ring 2.

[0025] Please combine Figure 1As shown, during use, the column impact rod is inserted into the positioning ring 2, and the motor is indirectly driven to move the mounting frame 1 by operating the controller. The mounting frame 1 drives the dovetail block 3 to slide, and the dovetail block 3 drives the positioning ring 2 to move down through the sliding mechanism. When the column impact rod is in contact with the concrete surface and the top surface of the positioning ring 2 is separated from the surface of the column impact rod, the controller is operated to stop the motor, and the positioning ring 2 is slid in the mounting frame 1 to move. The positioning ring 2 drives the column impact rod to slide to the specified position, and then the top surface of the column impact rod is knocked to detect the concrete strength. The movement of the positioning ring 2 can move the shadow of the positioning ring 2 vertically projected onto the concrete surface, thereby increasing the detection area of ​​the concrete surface and improving the accuracy of the concrete strength detection.

[0026] Please combine Figure 1 , Figure 2 , Figure 3 As shown, an embodiment of the sliding mechanism includes two guide barrels 4, which are fixedly connected to the side walls of the dovetail block 3. A T-shaped slide bar 5 is slidingly provided inside the guide barrel 4, and one end of the T-shaped slide bar 5 passes through the guide barrel 4 and is fixedly connected to the outer wall of the positioning ring 2.

[0027] Please combine Figure 1 As shown, during use, the column impact rod is placed into the positioning ring 2 and then the positioning ring 2 is slid. The positioning ring 2 drives the column impact rod to slide to the specified position, and the positioning ring 2 drives the T-shaped slide bar 5 to move. If the detected point is not on the sliding line of the two T-shaped slide bars 5, the positioning ring 2 can be rotated, and the positioning ring 2 drives the T-shaped slide bar 5 to rotate, and the T-shaped slide bar 5 drives the guide barrel 4 to rotate, and the guide barrel 4 drives the dovetail block 3 to rotate in the dovetail groove 6, so as to adjust the sliding line of the T-shaped slide bar 5.

[0028] A brake mechanism is fixedly connected to the side wall of the guide barrel 4 , and the brake mechanism can perform a limiting operation on the T-shaped slide bar 5 and the dovetail block 3 .

[0029] The brake mechanism comprises a brake assembly and a drive assembly. The brake assembly is slidably arranged in the guide barrel 4, and the drive assembly is fixed to the outer wall of the guide barrel 4. The drive assembly can drive the brake assembly to slide.

[0030] Please combine Figure 2 , Figure 3 As shown, an embodiment of a driving assembly, the driving assembly includes a brake ring 9 and a plurality of cylinders 7, the cylinder 7 is fixed to the side wall of the guide barrel 4, a slide rod 8 is slidably provided in the cylinder 7, one end of the slide rod 8 passes through the dovetail block 3 and fits with the inner arc surface of the brake ring 9, the brake ring 9 is fixed to the inner wall of the mounting frame 1, the slide rod 8 is slidably connected to the dovetail block 3, the other end face of the slide rod 8 is hinged with a connecting rod 10, the two connecting rods 10 are hinged to each other, a torsion spring 11 is provided at the hinge of the two connecting rods 10, a protrusion 15 is fixedly connected to the side wall of the slide rod 8, the surface of the protrusion 15 close to the end of the dovetail block 3 is an arc surface, and the surface of the slide rod 8 in contact with the brake ring 9 is a frosted surface.

[0031] Please combine Figure 2 As shown, an embodiment of a brake assembly, the brake assembly includes a plurality of brake pads 14, the brake pads 14 are slidably arranged in a slide groove 13, the slide groove 13 is opened on the inner wall of a guide barrel 4, a tension spring 12 is fixedly connected between the guide barrel 4 and the brake pads 14, the tension spring 12 is arranged in the slide groove 13, one end of the brake pad 14 passes through the guide barrel 4 and fits with the surface of a protrusion 15, the brake pad 14 is slidably connected to the guide barrel 4, the other end of the brake pad 14 fits with the surface of a T-shaped slide bar 5, and the surface of the T-shaped slide bar 5 in contact with the brake pad 14 is a frosted surface.

[0032] Please combine Figure 2 As shown, during use, when it is necessary to slide or rotate the positioning ring 2, first pull the two connecting rods 10 to deform the torsion spring 11, and the connecting rod 10 drives the slide bar 8 to slide in the cylinder 7, and the slide bar 8 gradually moves and separates from the brake ring 9. The brake ring 9 cancels the limit on the slide bar 8 so that the slide bar 8 can rotate, and the slide bar 8 drives the protrusion 15 to move and gradually separate from the brake pad 14. At this time, the tension spring 12 pulls the brake pad 14 to move and separate from the surface of the T-shaped slide bar 5, cancels the limit on the T-shaped slide bar 5, so that the T-shaped slide bar 5 can slide, and then adjust the position of the positioning ring 2. When the positioning ring 2 reaches the appropriate position, release the connecting rod 10 and press the connecting rod. 10. The connecting rod 10 drives the slide bar 8 to move and gradually fit the surface of the brake ring 9. The brake ring 9 limits the slide bar 8, so that the slide bar 8 can no longer rotate. The slide bar 8 cannot rotate, so the dovetail block 3 cannot rotate. The dovetail block 3 cannot rotate, so the guide barrel 4 cannot rotate. The guide barrel 4 cannot rotate, so the T-shaped slide bar 5 cannot rotate. The T-shaped slide bar 5 cannot rotate, so the positioning ring 2 cannot rotate. The slide bar 8 drives the protrusion 15 to move and pushes the brake pad 14 to move and fit the surface of the T-shaped slide bar 5 again to limit it, so that the T-shaped slide bar 5 cannot slide. The T-shaped slide bar 5 cannot slide, so the positioning ring 2 cannot slide, thereby realizing the positioning of the positioning ring 2.

[0033] 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 detection device, comprising a mounting frame, characterized in that: The inner side wall of the mounting frame is provided with a dovetail groove in an annular manner. Two dovetail blocks are symmetrically slidably arranged in the dovetail groove. A positioning ring is arranged between the two dovetail blocks. The positioning ring is connected to the dovetail block via a sliding mechanism, and the positioning ring can slide in the mounting frame.

2. A concrete strength detection device according to claim 1, characterized in that: The inner cross-section of the positioning ring is in the shape of a trumpet with the opening facing upward.

3. A concrete strength detection device according to claim 1 or 2, characterized in that: The sliding mechanism comprises two guide barrels, the guide barrels are fixedly connected to the side walls of the dovetail block, a T-shaped slide bar is provided in the guide barrels for sliding fit, one end of the T-shaped slide bar passes through the guide barrels and is fixedly connected to the outer wall of the positioning ring.

4. A concrete strength detection device according to claim 3, characterized in that: The side wall of the guide barrel is fixedly connected with a brake mechanism, and the brake mechanism can perform a limiting operation on the T-shaped slide bar and the dovetail block.

5. A concrete strength detection device according to claim 4, characterized in that: The brake mechanism comprises a brake assembly and a drive assembly. The brake assembly is slidably arranged in the guide barrel, and the drive assembly is fixed to the outer wall of the guide barrel. The drive assembly can drive the brake assembly to slide.

6. A concrete strength detection device according to claim 5, characterized in that: The driving assembly includes a brake ring and multiple cylinders, the cylinders are fixed to the side walls of the guide barrels, a sliding rod is slidably provided in the cylinders, one end of the sliding rod passes through the dovetail block and fits with the inner arc surface of the brake ring, the brake ring is fixed to the inner wall of the mounting frame, the sliding rod is slidably connected to the dovetail block, the other end face of the sliding rod is hinged with a connecting rod, the two connecting rods are hinged to each other, a torsion spring is provided at the hinge of the two connecting rods, a protrusion is fixedly connected to the side wall of the sliding rod, the surface of the protrusion close to the dovetail block end is an arc surface, and the surface of the sliding rod in contact with the brake ring is a frosted surface.

7. A concrete strength detection device according to claim 6, characterized in that: The brake assembly includes multiple brake pads, which are slidably arranged in a slide groove, which is opened on the inner wall of a guide barrel, and a tension spring is fixedly connected between the guide barrel and the brake pad, and the tension spring is arranged in the slide groove. One end of the brake pad passes through the guide barrel and fits against the surface of the protrusion, and the brake pad is slidably connected to the guide barrel, and the other end of the brake pad fits against the surface of a T-shaped slide bar, and the surface of the T-shaped slide bar in contact with the brake pad is a frosted surface.

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