Ultrasonic detection device for building steel structure detection

Abstract

The utility model discloses an ultrasonic detection device for detecting a building steel structure, which belongs to the field of ultrasonic detection devices and comprises an ultrasonic flaw detector and an ultrasonic probe, the ultrasonic flaw detector is connected with the ultrasonic probe through a connecting line, and an auxiliary mechanism is arranged outside the ultrasonic probe. The auxiliary mechanism comprises a protective sleeve, a magnetic ring, a connecting cylinder and an external threaded pipe, the magnetic ring is fixedly connected in the bottom surface of the protective sleeve, and the arranged auxiliary mechanism is matched with the ultrasonic flaw detector for use, so that the ultrasonic probe can be effectively and magnetically attracted and fixed on the surface of a detected object during detection, and detection personnel do not need to hold and fix for a long time; the problems of shaking and unstable use of the ultrasonic probe caused by hand fatigue or other external factors after the ultrasonic probe is held by a detector for a long time are avoided, so that the detection accuracy is ensured, and the detector can conveniently operate and use the ultrasonic flaw detector.

Description

TECHNICAL FIELD

[0001] The utility model relates to ultrasonic testing device field, especially in building steel structure detection uses ultrasonic testing device. BACKGROUND

[0002] Building steel structure refers to the building form of the load-bearing structure formed by taking steel as the main material. It is mainly composed of steel beams, steel columns, steel trusses and other components made of profiled steel and steel plates, etc. These components are connected together by welding, bolts or rivets, etc. to form a stable whole structure. Steel structure is widely used in large workshops, stadiums, super high-rise buildings, bridges and other fields due to its light weight, high strength, fast construction speed, good seismic performance and other advantages. At the same time, steel structure components are usually prefabricated in the factory and then transported to the site for assembly, with high industrialization degree.

[0003] In the prior art, in order to avoid the problems such as weld defects, cracks, delamination and inclusions in the interior of the steel structure of the building, an ultrasonic testing device is often used to detect the building steel structure. The potential defects can be found in time by the ultrasonic testing device, which provides a basis for timely repair and reinforcement, so as to eliminate safety hazards. At present, the ultrasonic testing device used in the detection of building steel structure is generally an ultrasonic flaw detector. The ultrasonic flaw detector can effectively detect the interior of the steel structure of the building by using ultrasonic detection technology. However, in the actual use process of the ultrasonic flaw detector, the detection personnel need to hold the instrument body with one hand and hold the ultrasonic probe connected with the instrument through the connecting line with the other hand. In the detection process, the ultrasonic probe also needs to be manually contacted with the detected object. Only in this way, the detected object can be effectively detected. However, because the probe cannot be fixed with the detected object, the detection personnel need to hold the ultrasonic probe for a long time, which not only increases the fatigue of the personnel, but also makes the ultrasonic detection probe shake due to the fatigue of the hands of the detection personnel. Under the influence of other external factors such as vibration or impact, the ultrasonic detection probe will also shake unstably, which will cause deviation of the received ultrasonic signal, affect the accuracy of the detection, and bring inconvenience to the operation of the instrument by the detection personnel. At the same time, because the ultrasonic probe is exposed to the outside world, it is further easy to be damaged by external factors, which will cause the problem that the ultrasonic probe cannot be normally used for detection. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide an ultrasonic testing device for building steel structure detection, which can effectively solve the problems in the background art.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] An ultrasonic testing device for inspecting building steel structures includes an ultrasonic flaw detector and an ultrasonic probe, which are connected by a connecting line. An auxiliary mechanism is provided outside the ultrasonic probe, comprising a protective sleeve, a magnetic ring, a connecting cylinder, and an externally threaded tube. The magnetic ring is fixedly connected to the bottom surface of the protective sleeve, and the connecting cylinder is movably connected to the inside of the protective sleeve via sliding strips on both sides. The externally threaded tube is movably connected to the connecting cylinder through a threaded hole at its bottom end and extends out from the top surface of the protective sleeve. The ultrasonic probe is fixedly connected to the connecting cylinder via an externally threaded ring on its top surface.

[0007] Preferably, the bottom surface of the protective sleeve is provided with an annular groove, and a magnetic ring is fixedly installed in the groove.

[0008] Preferably, the inner wall of the protective sleeve is provided with a set of symmetrical sliding grooves, and the top surface of the protective sleeve is also provided with threaded holes.

[0009] Preferably, a set of symmetrical slide bars are fixedly installed on the outer wall of the connecting cylinder, and the slide bars are movably installed in the slide groove. The top surface of the connecting cylinder has a through hole, and the top surface of the connecting cylinder outside the through hole has a rotating protrusion. The inner wall of the connecting cylinder also has an internal thread.

[0010] Preferably, an external threaded ring is fixedly installed on the top surface of the ultrasonic probe, and the external threaded ring is threadedly connected to the internal thread.

[0011] Preferably, the externally threaded tube is threadedly connected to the threaded hole, and a rotating convex ring is fixedly installed at the bottom end of the externally threaded tube and movably installed in the rotating convex groove. A knob ring is also fixedly installed on the top of the outer wall of the externally threaded tube in a fitted manner.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, the auxiliary mechanism, in conjunction with the ultrasonic flaw detector, allows the ultrasonic probe to be rotated so that the external threaded ring is connected to the connecting cylinder via the internal thread. This fixes the ultrasonic probe to the connecting cylinder. Rotating the external threaded tube, through the rotating convex ring at the bottom of the external threaded tube, drives the connecting cylinder into the protective sleeve, allowing the ultrasonic probe to enter. The protective sleeve provides external protection for the ultrasonic probe, preventing damage and unusability due to exposure to the outside environment. When inspecting building steel structures, the protective sleeve is placed on the object being inspected, and the probe passes through the annular groove... The magnetic ring allows the protective sleeve to be magnetically attached to the steel structure being inspected. Rotating the knob ring then pushes the connecting cylinder downwards through the rotating convex ring at the bottom, ensuring the ultrasonic probe is firmly attached to the surface of the object being inspected. This allows for effective magnetic fixation of the ultrasonic probe to the surface during inspection, eliminating the need for prolonged hand-holding by the inspector. This avoids the problems of the ultrasonic probe shaking and instability caused by hand fatigue or other external factors after prolonged handling, thus ensuring both inspection accuracy and ease of operation for the ultrasonic flaw detector. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 A cross-sectional view of the structure at point A;

[0016] Figure 3 This is a schematic diagram of the overall structure of the ultrasonic probe of this utility model;

[0017] Figure 4 This is a cross-sectional diagram of the auxiliary mechanism of this utility model.

[0018] In the diagram: 1. Ultrasonic flaw detector; 2. Connecting wire; 3. Ultrasonic probe; 4. Auxiliary mechanism; 5. External threaded ring; 6. Protective sleeve; 7. Ring groove; 8. Magnetic ring; 9. Slide groove; 10. Threaded hole; 11. Connecting cylinder; 12. Slide bar; 13. Through hole; 14. Rotary groove; 15. Internal thread; 16. External threaded pipe; 17. Rotary convex ring; 18. Knob ring. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figure 1 - Figure 4As shown, an ultrasonic testing device for inspecting building steel structures includes an ultrasonic flaw detector 1 and an ultrasonic probe 3, which are connected by a connecting line 2. An auxiliary mechanism 4 is provided on the outside of the ultrasonic probe 3, and the auxiliary mechanism 4 includes a protective sleeve 6, a magnetic ring 8, a connecting cylinder 11, and an external threaded tube 16. The magnetic ring 8 is fixedly connected to the bottom surface of the protective sleeve 6, and the connecting cylinder 11 is movably connected to the inside of the protective sleeve 6 through sliding strips 12 on both sides. The external threaded tube 16 is movably connected to the connecting cylinder 11 through a threaded hole 10 at the bottom end and passes through the top surface of the protective sleeve 6. The ultrasonic probe 3 is fixedly connected to the connecting cylinder 11 through an external threaded ring 5 on the top surface.

[0021] like Figure 4 As shown, the bottom surface of the protective sleeve 6 is provided with an annular groove 7, and a magnetic ring 8 is fixedly installed in the groove 7. The magnetic ring 8 installed in the groove 7 can magnetically fix the ultrasonic probe 3, so that the magnetic ring 8 can be magnetically attached to the iron steel structure surface to be inspected.

[0022] like Figure 4 As shown, a set of symmetrical sliding grooves 9 are provided on the inner wall of the protective sleeve 6. The sliding grooves 9 are used to cooperate with the slide bar 12 to achieve sliding operation. The top surface of the protective sleeve 6 is also provided with a threaded hole 10. The threaded hole 10 is used to cooperate with the external threaded tube 16 to achieve threaded rotation operation. The protective sleeve 6 can provide external protection for the ultrasonic probe 3, preventing the ultrasonic probe 3 from being damaged and causing problems such as inability to use and detect normally.

[0023] like Figure 4 As shown, a set of symmetrical slide bars 12 are fixedly installed on the outer wall of the connecting cylinder 11, and the slide bars 12 are movably installed in the slide groove 9. The slide bars 12 can restrict the rotation of the connecting cylinder 11 by sliding in the slide groove 9, and can move up and down to guide it. A through hole 13 is opened on the top surface of the connecting cylinder 11. The through hole 13 can ensure that the connection end of the connecting wire 2 and the ultrasonic flaw detector 1 can pass through. A rotating protrusion 14 is opened on the top surface of the connecting cylinder 11 outside the through hole 13. The rotating protrusion 14 is used to cooperate with the rotating protrusion ring 17 to realize the rotation operation. An internal thread 15 is also opened on the inner wall of the connecting cylinder 11. The internal thread 15 is used to cooperate with the external thread ring 5 to connect and fix the ultrasonic probe 3.

[0024] like Figure 3 As shown, an external threaded ring 5 is fixedly installed on the top surface of the ultrasonic probe 3, and the external threaded ring 5 is threadedly connected to the internal thread 15. Rotating the ultrasonic probe 3 causes the external threaded ring 5 to be threadedly connected to the internal thread 15 on the inner wall of the connecting cylinder 11, so that the ultrasonic probe 3 can be fixedly connected to the bottom end of the connecting cylinder 11.

[0025] like Figure 4As shown, the external threaded tube 16 is threadedly connected to the threaded hole 10, and a rotating convex ring 17 is fixedly installed at the bottom end of the external threaded tube 16 and movably installed in the rotating convex groove 14. A knob ring 18 is also fixedly installed on the top of the outer wall of the external threaded tube 16 in a sleeve manner. When the knob ring 18 is rotated, the external threaded tube 16 rotates and moves up and down in the threaded hole 10, which can drive the rotating convex ring 17 to rotate in the rotating convex groove 14. The rotating convex ring 17 drives the connecting cylinder 11 to move up and down, so that the ultrasonic probe 3 is in close contact with the surface of the steel structure of the building being inspected.

[0026] The specific operating principle of this auxiliary mechanism 4 in conjunction with the ultrasonic flaw detector 1 is as follows:

[0027] One end of the connecting cable 2, which is connected to the ultrasonic flaw detector 1, is passed sequentially through the through hole 13 on the top surface of the connecting cylinder 11 and the internal threaded tube 16. Then, the external threaded ring 5 installed on the top surface of the ultrasonic probe 3 is aligned with the protruding part of the connecting cylinder 11 at the bottom of the protective sleeve 6. The ultrasonic probe 3 is then manually rotated to screw the external threaded ring 5 into the connecting cylinder 11, where it is threaded together with the internal thread 15 on the inner wall of the connecting cylinder 11, thus fixing the ultrasonic probe 3 to the bottom of the connecting cylinder 11. Next, the knob ring 18 located above the protective sleeve 6 is rotated. The knob ring 18 will cause the external threaded tube 16 to rotate within the threaded hole 10 on the top surface of the protective sleeve 6, and the external threaded tube 16 will cause the knob ring 18 at the bottom to rotate. The rotating protrusion 17 rotates in the rotating protrusion 14 on the top surface of the connecting cylinder 11. After the knob ring 18 is continuously rotated, the external threaded tube 16 will move upward along the threaded hole 10 and drive the connecting cylinder 11 to move into the protective sleeve 6 through the rotating protrusion 17. During the movement, the slide bar 12 installed on the outer wall of the connecting cylinder 11 will slide in the slide groove 9 on the inner wall of the protective sleeve 6 until the connecting cylinder 11 completely drives the ultrasonic probe 3 into the protective sleeve 6. This allows the ultrasonic probe 3 to be externally protected by the external protective sleeve 6 when not in use, preventing the ultrasonic probe 3 from being damaged by external factors and subsequently unable to be used for testing.

[0028] When inspecting a building steel structure using an ultrasonic flaw detector 1, the end of the threaded tube 16 is inserted into the ultrasonic flaw detector 1. The ultrasonic probe 3 is then placed on the surface of the steel structure under inspection by holding the protective sleeve 6. At this time, the magnetic ring 8 installed in the annular groove 7 on the top surface of the protective sleeve 6 will magnetically attract the protective sleeve 6 to the surface of the steel structure under inspection based on its material properties. Then, the knob ring 18 located above the protective sleeve 6 is rotated. The knob ring 18 will cause the threaded tube 16 to rotate within the threaded hole 10, gradually entering the interior of the protective sleeve 6 through the threaded hole 10. Simultaneously, the rotating convex ring 17 at the bottom of the threaded tube 16 will rotate within the rotating convex groove 14, and the threaded tube 16 will push the connecting cylinder 11 downwards through the rotating convex ring 17. This allows the connecting cylinder 11 to slide downwards through the sliding strips 12 on both sides along the sliding groove 9 within the protective sleeve 6. The ultrasonic probe 3, installed at the bottom of the connecting cylinder 11, is moved until it is tightly attached to the surface of the steel structure being inspected, preventing the knob ring 18 from rotating. Finally, the inspector can operate the ultrasonic flaw detector 1 with both hands, connected by the connecting line 2, to complete the ultrasonic inspection of the steel structure through the ultrasonic probe 3. Therefore, with the cooperation of the auxiliary mechanism 4, the ultrasonic probe 3 can be magnetically fixed to the surface of the steel structure being inspected without the inspector holding it for a long time. This avoids the problem of the ultrasonic probe 3 shaking and being unstable due to hand fatigue or other external factors after the inspector holds it for a long time. It also ensures that the ultrasonic probe 3 is tightly attached to the surface of the steel structure being inspected during the inspection process, thus ensuring the accuracy of the inspection and making it convenient for the inspector to operate the ultrasonic flaw detector 1.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, various improvements can be made to it without departing from the scope of the present utility model, and components can be replaced with equivalents or some technical features can be replaced with equivalents. All such improvements within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrasonic testing device for inspecting steel structures in buildings, comprising an ultrasonic flaw detector (1) and an ultrasonic probe (3), wherein the ultrasonic flaw detector (1) and the ultrasonic probe (3) are connected by a connecting line (2), characterized in that: The ultrasonic probe (3) is provided with an auxiliary mechanism (4) on its exterior. The auxiliary mechanism (4) includes a protective sleeve (6), a magnetic ring (8), a connecting cylinder (11), and an external threaded tube (16). The magnetic ring (8) is fixedly connected to the bottom surface of the protective sleeve (6), and the connecting cylinder (11) is movably connected to the inside of the protective sleeve (6) through the sliding strips (12) on both sides. The external threaded tube (16) is movably connected to the connecting cylinder (11) through the threaded hole (10) at the bottom end and passes through the top surface of the protective sleeve (6). The ultrasonic probe (3) is fixedly connected to the connecting cylinder (11) through the external threaded ring (5) on the top surface.

2. The ultrasonic testing device for inspecting building steel structures according to claim 1, characterized in that: The bottom surface of the protective sleeve (6) is provided with an annular groove (7), and a magnetic ring (8) is fixedly installed in the groove (7).

3. The ultrasonic testing device for inspecting building steel structures according to claim 2, characterized in that: The protective sleeve (6) has a set of symmetrical sliding grooves (9) on its inner wall, and the top surface of the protective sleeve (6) also has a threaded hole (10).

4. The ultrasonic testing device for inspecting building steel structures according to claim 3, characterized in that: A set of symmetrical slide bars (12) are fixedly installed on the outer wall of the connecting cylinder (11), and the slide bars (12) are movably installed in the slide groove (9). A through hole (13) is opened on the top surface of the connecting cylinder (11), and a rotating protrusion (14) is opened on the top surface of the connecting cylinder (11) outside the through hole (13). An internal thread (15) is also opened on the inner wall of the connecting cylinder (11).

5. The ultrasonic testing device for inspecting building steel structures according to claim 4, characterized in that: The top surface of the ultrasonic probe (3) is fixedly equipped with an external threaded ring (5), and the external threaded ring (5) is threaded together with the internal thread (15).

6. The ultrasonic testing device for inspecting building steel structures according to claim 5, characterized in that: The external threaded tube (16) is threadedly connected to the threaded hole (10), and a rotating convex ring (17) is fixedly installed at the bottom end of the external threaded tube (16) and movably installed in the rotating convex groove (14). A knob ring (18) is also fixedly installed on the top of the outer wall of the external threaded tube (16) in a fitted manner.

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