Reinforced concrete crack lossless measuring instrument

Abstract

The utility model relates to the technical field of lossless measuring instruments, in particular to a lossless measuring instrument for reinforced concrete cracks, which has the characteristic of improving practicability and comprises a measuring instrument, one end of the measuring instrument is provided with a data line, one end of the data line is electrically connected with a probe, a fixed tube is arranged outside the measuring instrument, and threads are arranged on the inner wall of the fixed tube. A movable ring is in threaded connection, a scraper is arranged on the outer wall of the movable ring, and a shielding pipe is arranged at one end of the movable ring.

Description

Technical Field

[0001] The utility model relates to the technical field of non-destructive measuring instruments, in particular to a non-destructive measuring instrument for reinforced concrete cracks. Background Art

[0002] As we all know, non-destructive measuring instruments are mainly used for surface defects in concrete structures of large-scale engineering projects such as building structures, bridges, tunnels, water conservancy, and municipal engineering. For example, there are crack depths, surface rigidity, internal defects, internal strength, and structural thickness. The test has high accuracy and powerful functions. The non-destructive measuring instrument transmits the ultrasonic wave sent by the ultrasonic transmitter into the interior of the object to be tested through the probe. When the ultrasonic wave encounters the boundary or defect of the object, a reflected wave will occur. At this time, the probe will receive the reflected wave signal. The sound wave can detect various defects inside the object, such as pores, inclusions, cracks, etc.

[0003] The patent with application number CN202223241316.9 discloses a non-destructive measuring instrument for reinforced concrete cracks, including a detector and a probe, one end of the detector is electrically connected to a data cable, and the other end of the data cable is electrically connected to the probe; a ring is fixedly sleeved on the surface of the probe, and a sliding rod is slidably connected to the inner wall of the ring, and the bottom end of the sliding rod is fixedly connected to the ring, and a scraper is provided on the outer wall of the ring, and a limit block made of rubber is fixedly connected to the surface of the sliding rod.

[0004] Although the scraper of the device is slidably arranged on the ferrule through a sliding rod on one side of the ferrule, the sliding rod is not convenient to be removed from the ferrule. When the scraper and particles on the concrete surface are scratched, the scraper itself will be worn to a certain extent. When the reinforced concrete crack non-destructive measuring instrument is used for a period of time, when the scraper is worn to a certain extent and needs to be replaced, the scraper is not convenient to be removed from the device. Therefore, the practicality is not very good and there is still room for improvement. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a non-destructive measuring instrument for reinforced concrete cracks, which has the characteristic of improving practicability.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a non-destructive measuring instrument for reinforced concrete cracks, comprising a measuring instrument, a data cable is provided at one end of the measuring instrument, one end of the data cable is electrically connected to a probe, a fixed tube is provided on the outside of the measuring instrument, a thread is provided on the inner wall of the fixed tube, and a moving ring is threadedly connected, a scraper is provided on the outer wall of the moving ring, and a shielding tube is provided at one end of the moving ring.

[0009] Furthermore, the shielding tube is made of transparent plastic, and a plurality of anti-slip stripes are arranged on the outer wall of the shielding tube.

[0010] Furthermore, the outer wall of the fixed tube is provided with a plurality of rolling grooves, and each of the rolling grooves is rollingly connected with a rolling ball, and the plurality of rolling balls are made of stainless steel material.

[0011] Furthermore, a gap is provided between the inner wall of the shielding tube and the outer wall of the probe.

[0012] Preferably, a display screen is provided on the upper portion of the measuring instrument, and a plurality of buttons are provided on the upper portion of the measuring instrument.

[0013] Preferably, the inner wall of the movable ring fits the outer wall of the data cable.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a non-destructive measuring instrument for reinforced concrete cracks, which has the following beneficial effects:

[0016] With long-term use, when the scraper of the reinforced concrete crack non-destructive measuring instrument is worn to the extent that it needs to be replaced, the movable ring with the scraper installed can be unscrewed from the fixed ring by simply grasping the shielding tube and turning it. At this time, the new movable ring with the scraper can be installed on the fixed tube, thereby facilitating the replacement of the scraper and improving the practicality to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the cooperation of the downward data line, the fixing tube and the probe of the utility model;

[0019] Figure 3 It is an enlarged three-dimensional schematic diagram of the cooperation of the moving ring, scraper and shielding tube of the utility model;

[0020] Figure 4 It is a schematic diagram of the enlarged structure of the fixed tube, the movable ring and the shielding tube of the utility model;

[0021] Figure 5 For this utility model Figure 1 A schematic diagram of the structure with a partial enlargement shown in FIG.

[0022] In the figure: 1. Measuring instrument; 2. Data cable; 3. Probe; 4. Fixed tube; 5. Moving ring; 6. Scraper; 7. Shielding tube; 8. Anti-slip stripes; 9. Rolling ball; 10. Display screen; 11. Button; 12. Rolling groove. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-5 The utility model discloses a nondestructive measuring instrument for reinforced concrete cracks, comprising a measuring instrument 1. A display screen 10 is arranged on the upper part of the measuring instrument 1 for displaying the situation inside the concrete cracks. Several buttons 11 are arranged on the upper part of the measuring instrument 1. A data line 2 is arranged at one end of the measuring instrument 1. One end of the data line 2 is electrically connected to a probe 3 for detecting cracks. A fixed tube 4 is arranged outside the measuring instrument 1. Several rolling grooves 12 are arranged on the outer wall of the fixed tube 4, and rolling balls 9 are connected thereto. When a staff member puts one end of the data line 2 equipped with the probe 3 into the crack of the concrete, the rolling balls 9 outside the fixed tube 4 contact the concrete surface and roll, so as to prevent the outer wall of the fixed tube 4 from directly rubbing against the concrete, thereby reducing the loss caused by friction. Several rolling balls 9 are all made of stainless steel, which has good material quality. Threaded grooves 12 are arranged on the inner wall of the fixed tube 4. , and a moving ring 5 is threadedly connected, and a scraper 6 is arranged on the outer wall of the moving ring 5. The moving ring 5 with the scraper 6 can be installed on the fixed tube 4 by means of threaded connection. As the probe 3 moves in the concrete, the scraper 6 scrapes off the particles on the concrete surface in front of the probe 3. A shielding tube 7 is arranged at one end of the moving ring 5. The shielding tube 7 is made of transparent plastic to prevent the shielding tube 7 from affecting the detection of the probe 3. Several anti-slip stripes 8 are arranged on the outer wall of the shielding tube 7. The staff grasps the anti-slip stripes 8 on the outside of the shielding tube 7, and then rotates the shielding tube 7 to drive the moving ring 5 to rotate in the fixed tube 4 and fix the moving ring 5 on the fixed tube 4. A gap is arranged between the inner wall of the shielding tube 7 and the outer wall of the probe 3 to facilitate the installation of the shielding tube 7. The inner wall of the moving ring 5 fits the outer wall of the data cable 2, thereby improving the stability between the moving ring 5 and the data cable 2.

[0025] To sum up, when the reinforced concrete crack nondestructive measuring instrument is in use, when the staff needs to use the reinforced concrete crack nondestructive measuring instrument 1, they grab the shielding tube 7, drive the moving ring 5 to be sleeved on the outside of the probe 3, and make the rear part of the moving ring 5 enter the interior of the fixed tube 4, and then rotate it to install the moving ring 5 on the fixed tube 4. At this time, the probe 3 is inserted into the crack. As the probe 3 is inserted, the ball 9 on the outside of the fixed tube 4 rolls on the surface of the concrete. At the same time, the scraper 6 on the outside of the moving ring 5 scrapes off the particles on the concrete surface. After using it for a period of time, when the scraper 6 is worn to a certain extent, the moving ring 5 is unscrewed from the fixed tube 4 and replaced with a new one for reuse.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-destructive measuring instrument for reinforced concrete cracks, comprising a measuring instrument (1), characterized in that: A data line (2) is provided at one end of the measuring instrument (1), and one end of the data line (2) is electrically connected to a probe (3). A fixed tube (4) is provided outside the measuring instrument (1), and a thread is provided on the inner wall of the fixed tube (4), and a moving ring (5) is connected to the thread. A scraper (6) is provided on the outer wall of the moving ring (5), and a shielding tube (7) is provided at one end of the moving ring (5).

2. The nondestructive measuring instrument for reinforced concrete cracks according to claim 1, characterized in that: The shielding tube (7) is made of transparent plastic, and a plurality of anti-slip stripes (8) are arranged on the outer wall of the shielding tube (7).

3. The nondestructive measuring instrument for reinforced concrete cracks according to claim 2, characterized in that: The outer wall of the fixed tube (4) is provided with a plurality of rolling grooves (12), and each of the rolling grooves (12) is rollingly connected with a rolling ball (9), and the plurality of rolling balls (9) are all made of stainless steel.

4. The nondestructive measuring instrument for reinforced concrete cracks according to claim 3 is characterized in that: A gap is provided between the inner wall of the shielding tube (7) and the outer wall of the probe (3).

5. The nondestructive measuring instrument for reinforced concrete cracks according to claim 4, characterized in that: A display screen (10) is arranged on the upper part of the measuring instrument (1), and a plurality of buttons (11) are arranged on the upper part of the measuring instrument (1).

6. A reinforced concrete crack nondestructive measuring instrument according to claim 5, characterized in that: The inner wall of the movable ring (5) and the outer wall of the data line (2) are in contact with each other.

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