Portable ultra-high performance concrete strength testing equipment

Abstract

The utility model relates to the technical field of building construction detection equipment, in particular to portable ultra-high performance concrete strength testing equipment which comprises an ultrasonic rebound apparatus, a sleeve shell is arranged on the outer surface of the ultrasonic rebound apparatus, the sleeve shell is in a circular tube shape, a control screen opening is formed in the front face of the sleeve shell, and a control panel is arranged on the control screen opening. The left end in the opening of the control screen is connected with the control screen of the ultrasonic resiliometer, a fixed sleeve cover is arranged at the right end of the sleeve shell, an expansion rod is arranged at the left end of the outer surface of the sleeve shell in a surrounding manner, the expansion rod is bent upwards at a certain angle, and a hollow pipe is fixedly arranged at the left end of the expansion rod. According to the portable ultra-high performance concrete strength testing equipment, the sleeve shell capable of being rapidly installed is additionally arranged, a certain protection effect is achieved, meanwhile, the expansion rod is additionally arranged outside the sleeve shell, the contact area of the detection equipment can be increased, the equipment is kept perpendicular to the wall face, the detection accuracy is improved, the expansion rod is additionally provided with the telescopic rod and the buffer spring, and the expansion rod is not prone to falling off. And the probe can be prevented from impacting the wall surface to be damaged.

Description

Technical Field

[0001] This utility model relates to the field of building construction testing equipment technology, specifically a portable ultra-high performance concrete strength testing device. Background Technology

[0002] Concrete is a composite material made by mixing and binding various aggregates with a cementing material, usually cement. Depending on the application, sand and gravel are typically used as aggregates, mixed with water and other special materials in a certain proportion. The resulting paste-like material is called concrete. Concrete is widely used in modern industrial construction, including building construction and bridge construction. It is an essential basic material and the fundamental basis for building construction. Its quality indirectly determines the quality of the final building. However, concrete often suffers from insufficient strength due to uncontrollable external factors such as air humidity and temperature, or improper mixing due to human error. Therefore, strength testing must be performed after each stage of concrete construction to ensure the quality of the final product. Among the methods for testing concrete strength, the ultrasonic rebound hammer is the most commonly used.

[0003] Most existing ultrasonic rebound hammer testing equipment consists of only a single instrument body, lacking external protection and prone to damage. Furthermore, the instruments generally lack vertical docking assistance during the testing process, making it easy for the probe to be misaligned with the concrete wall or even severely tilted when held manually, resulting in inaccurate measurement results.

[0004] To address the aforementioned issues, we have made improvements and proposed a portable ultra-high performance concrete strength testing device. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a portable ultra-high performance concrete strength testing device, including an ultrasonic rebound hammer. The outer surface of the ultrasonic rebound hammer is detachably equipped with a shell, which is cylindrical. The front of the shell has a control screen opening from right to left. The left end of the control screen opening is connected to the control screen of the ultrasonic rebound hammer. The right end of the shell is detachably equipped with a fixed cover. Four expansion rods are evenly spaced around the left end of the outer surface of the shell. The expansion rods are bent upward at a certain angle, and the left end of the expansion rods is fixedly equipped with a hollow tube.

[0007] As a preferred technical solution of this utility model, the outer surface of the right end of the housing is provided with an external thread, the inside of the fixed cover is provided with an internal thread, the fixed cover is threaded to the right end of the housing through the internal thread and the external thread, and a retaining spring is fixedly provided in the middle of the right side of the inner wall of the fixed cover, and the left end of the retaining spring is connected to the right side of the ultrasonic rebound instrument.

[0008] As a preferred technical solution of this utility model, the left end of the casing has two limiting rings fixedly welded by a connecting rod. The two limiting rings maintain a certain distance and their inner diameters are equal to the cross-sectional dimensions of the ultrasonic rebound instrument at their respective positions. The limiting rings are connected to the ultrasonic rebound instrument.

[0009] As a preferred embodiment of this invention, the right end of the expansion rod is fixedly welded to the casing, and the horizontal position of the left end of the hollow tube is located to the right of the probe end of the ultrasonic rebound instrument, maintaining a certain distance.

[0010] As a preferred embodiment of this utility model, a telescopic rod is provided at the left end of the hollow tube, and the horizontal position of the left end of the extended section of the telescopic rod is located to the left of the probe of the ultrasonic rebound instrument.

[0011] As a preferred embodiment of this utility model, a pressure ring is fixedly welded to the left side of the hollow tube, and a buffer spring is sleeved on the outside of the left end of the telescopic rod. The right end of the buffer spring is fixedly connected to the left edge of the pressure ring.

[0012] As a preferred embodiment of this utility model, a pressure plate is fixedly welded to the left end of the telescopic rod, the left end of the buffer spring is fixedly connected to the right side of the pressure plate, and anti-slip texture is provided on the left side of the pressure plate.

[0013] The beneficial effects of this utility model are as follows: This portable ultra-high performance concrete strength testing device adds a quickly installable shell to the ultrasonic rebound hammer, which can play a certain protective role. At the same time, an expansion rod is added to the outside of the shell. The expansion rod, together with the pressure plate, can increase the contact area of ​​the testing device, so that the device can remain perpendicular to the wall to a large extent during the testing process, effectively reducing the tilt and improving the testing accuracy. In addition, the expansion rod is equipped with a telescopic rod and a buffer spring, which can prevent the ultrasonic rebound hammer probe from hitting the wall and being damaged due to improper operation, and play a certain buffering role. While ensuring the original portability, it makes the testing more convenient and accurate, and improves the protection function of the testing instrument. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of the portable ultra-high performance concrete strength testing device of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the portable ultra-high performance concrete strength testing device of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the portable ultra-high performance concrete strength testing device of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the portable ultra-high performance concrete strength testing device of this utility model;

[0019] In the diagram: 1. Ultrasonic rebound hammer; 2. Housing; 201. Control panel opening; 3. External thread; 4. Fixed cover; 5. Internal thread; 6. Supporting spring; 7. Limiting ring; 8. Expansion rod; 9. Hollow tube; 10. Telescopic rod; 11. Pressure ring; 12. Buffer spring; 13. Pressure plate; 14. Anti-slip texture. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1-4 As shown, a portable ultra-high performance concrete strength testing device includes an ultrasonic rebound hammer 1. The outer surface of the ultrasonic rebound hammer 1 is detachably equipped with a shell 2, which is cylindrical. The front of the shell 2 has a control screen opening 201 from right to left. The left end of the control screen opening 201 is connected to the control screen of the ultrasonic rebound hammer 1. The right end of the shell 2 is detachably equipped with a fixed cover 4. The left end of the outer surface of the shell 2 is equipped with four expansion rods 8 at equal intervals. The expansion rods 8 are bent upward at a certain angle. The left end of the expansion rods 8 is fixedly equipped with a hollow tube 9.

[0022] The outer surface of the right end of the housing 2 is provided with an external thread 3, and the inside of the fixed cover 4 is provided with an internal thread 5. The fixed cover 4 is threadedly connected to the right end of the housing 2 through the internal thread 5 and the external thread 3. A retaining spring 6 is fixedly installed in the middle of the right side of the inner wall of the fixed cover 4, and the left end of the retaining spring 6 is connected to the right side of the ultrasonic rebound instrument 1.

[0023] Two limiting rings 7 are fixedly welded to the left end of the casing 2 via a connecting rod. The two limiting rings 7 maintain a certain distance, and their inner diameters are equal to the cross-sectional dimensions of the ultrasonic rebounder 1 at their respective positions. The limiting rings 7 are connected to the ultrasonic rebounder 1.

[0024] The right end of the expansion rod 8 is fixedly welded to the casing 2, and the horizontal position of the left end of the hollow tube 9 is located to the right of the probe end of the ultrasonic rebound instrument 1, maintaining a certain distance.

[0025] The hollow tube 9 has a telescopic rod 10 extending from its left end. The horizontal position of the left end of the extended section of the telescopic rod 10 is located to the left of the probe of the ultrasonic rebound instrument 1.

[0026] A pressure ring 11 is fixedly welded to the left side of the hollow tube 9, and a buffer spring 12 is sleeved on the outside of the left end of the telescopic rod 10. The right end of the buffer spring 12 is fixedly connected to the left edge of the pressure ring 11.

[0027] A pressure plate 13 is fixedly welded to the left end of the telescopic rod 10, and the left end of the buffer spring 12 is fixedly connected to the right side of the pressure plate 13. Anti-slip texture 14 is provided on the left side of the pressure plate 13.

[0028] Working principle: When using this portable ultra-high performance concrete strength testing equipment, insert the ultrasonic rebound hammer 1 from the right end of the housing 2 until its left end abuts against the limiting ring 7. The control display screen also abuts against the left end of the control screen opening 201. Align the fixing cover 4 with the right end of the housing 2 and rotate and tighten it. The retaining spring 6 further presses the ultrasonic rebound hammer 1. Then, align the probe of the ultrasonic rebound hammer 1 with the position to be tested and let the pressure plate 13 contact the concrete wall. After adjusting the position, push the equipment against the wall. The telescopic rod 10 retracts into the hollow tube 9 until the tip of the probe of the ultrasonic rebound hammer 1 abuts against the wall, and the test can begin.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable ultra-high performance concrete strength testing device, comprising an ultrasonic rebound hammer (1), characterized in that, The outer surface of the ultrasonic rebounder (1) is detachably provided with a shell (2). The shell (2) is cylindrical. The front of the shell (2) has a control screen opening (201) from right to left. The left end of the control screen opening (201) is connected to the control screen of the ultrasonic rebounder (1). The right end of the shell (2) is detachably provided with a fixed cover (4). Four expansion rods (8) are equally spaced around the left end of the outer surface of the shell (2). The expansion rods (8) are bent upward at a certain angle. The left end of the expansion rods (8) is fixedly provided with a hollow tube (9).

2. The portable ultra-high performance concrete strength testing device according to claim 1, characterized in that, The outer surface of the right end of the housing (2) is provided with an external thread (3), and the inside of the fixed cover (4) is provided with an internal thread (5). The fixed cover (4) is threadedly connected to the right end of the housing (2) through the internal thread (5) and the external thread (3). A retaining spring (6) is fixedly provided in the middle of the right side of the inner wall of the fixed cover (4). The left end of the retaining spring (6) is connected to the right side of the ultrasonic rebound instrument (1).

3. The portable ultra-high performance concrete strength testing device according to claim 1, characterized in that, The left end of the casing (2) is fixedly welded with two limiting rings (7) by a connecting rod. The two limiting rings (7) maintain a certain distance and their inner diameters are equal to the cross-sectional dimensions of the ultrasonic rebounder (1) at their respective positions. The limiting rings (7) are connected to the ultrasonic rebounder (1).

4. The portable ultra-high performance concrete strength testing device according to claim 1, characterized in that, The right end of the expansion rod (8) is fixedly welded to the casing (2), and the horizontal position of the left end of the hollow tube (9) is located to the right of the probe end of the ultrasonic rebound instrument (1) and maintains a distance.

5. The portable ultra-high performance concrete strength testing device according to claim 1, characterized in that, The hollow tube (9) has a telescopic rod (10) extending and retracting at its left end. The horizontal position of the left end of the extended section of the telescopic rod (10) is located to the left of the probe of the ultrasonic rebound instrument (1).

6. The portable ultra-high performance concrete strength testing device according to claim 5, characterized in that, A pressure ring (11) is fixedly welded to the left side of the hollow tube (9), and a buffer spring (12) is sleeved on the outside of the left end of the telescopic rod (10). The right end of the buffer spring (12) is fixedly connected to the left edge of the pressure ring (11).

7. The portable ultra-high performance concrete strength testing device according to claim 6, characterized in that, The left end of the telescopic rod (10) is fixedly welded with a pressure plate (13), the left end of the buffer spring (12) is fixedly connected to the right side of the pressure plate (13), and the left side of the pressure plate (13) is provided with anti-slip texture (14).

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