Excitation sounding nondestructive testing device for concrete filled steel tube

Abstract

The utility model relates to a concrete filled steel tube vibration excitation sounding nondestructive testing device, which belongs to the technical field of concrete filled steel tube detection, and comprises a sound collector, a vibration excitation hammer, a lantern ring, a concave block and a placing block, the inner side of the lantern ring is provided with a clamping and fixing assembly which can be used for clamping and fixing the lantern ring to the outer part of the concrete filled steel tube, and the lower end of the concave block is fixedly provided with a vertical rod; the rotating structure comprises an annular plate rotationally connected with the outer surface of the lantern ring, the front wall and the rear wall of the inner side of the annular plate are each fixedly provided with two clamping blocks, and an inner gear ring is fixed to the inner side wall of the annular plate. According to the vibration excitation sounding nondestructive testing device for the concrete filled steel tube, the position of a sound collector does not need to be manually adjusted, a plurality of sound collectors do not need to be adopted for sound collection of the concrete filled steel tube, the detection cost is effectively reduced, and the lantern ring can be fixed outside the concrete filled steel tube by arranging the clamping and fixing assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of steel tube concrete detection, in particular to a non-destructive detection device for steel tube concrete by exciting vibration and acoustic measurement. Background Technique

[0002] Due to its good mechanical properties, the steel tube concrete structure is widely used in high-rise buildings and super high-rise buildings. However, due to reasons such as non-standard construction or concrete shrinkage, defects in the form of voids, cavities, cracks, etc. are likely to occur inside the steel tube concrete structure. In existing projects, methods such as manual percussion method and core sampling method are generally used to detect the defects of the steel tube concrete structure. Among them, the core sampling method needs to damage the steel tube concrete structure, affecting the construction quality; while the manual percussion method is to apply hammer excitation to the steel tube concrete component and judge the quality of concrete pouring based on the sound echo. Since it adopts a non-destructive form, it is more widely applicable.

[0003] However, the existing manual percussion method is very dependent on the experience of the staff during use, the detection result is greatly affected by human factors, and the detection accuracy is very limited. A non-destructive detection device for steel tube concrete by exciting vibration and acoustic measurement is disclosed in a Chinese patent (publication number: CN 218995261U), which can improve the detection accuracy. However, in the above document, the position of the sound collection module still needs to be manually adjusted to enable the sound collection module to collect the sounds at different positions of the steel tube concrete, or multiple sound collection modules are squeezed and respectively arranged around the steel tube concrete, which increases the detection cost. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a non-destructive detection device for steel tube concrete by exciting vibration and acoustic measurement, which has the advantages of being easy to adjust and solves the problem of inconvenient adjustment.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A non-destructive detection device for steel tube concrete by exciting vibration and acoustic measurement, including a sound collector, an exciting hammer, a collar, a concave block and a placing block. A rotating structure for driving the sound collector to rotate is arranged on the outer side of the collar. A clamping and fixing component for clamping and fixing it on the outside of the steel tube concrete is arranged on the inner side of the collar. A vertical rod is fixed at the lower end of the concave block.

[0006] The rotating structure includes an annular plate rotatably connected to the outer surface of the collar. Two clamping blocks are fixed on the front and rear walls of the inner side of the annular plate. An internal gear ring is fixed on the inner side wall of the annular plate. A gear is meshed with the inner side wall of the internal gear ring. The rotating structure further includes a slot arranged on the front wall of the collar. A rotating motor is fixed on the top wall of the inner side of the slot.

[0007] Further, two annular grooves are formed on the outer surface of the collar, and the clamping block is located inside the annular groove and is slidably connected thereto.

[0008] Further, the output end of the rotary motor is fixed to the inner side of the gear.

[0009] Further, the top end of the annular plate is fixed to the lower end of the vertical rod, and rubber blocks are fixed to the front and rear walls inside the concave block.

[0010] Further, the placing block is fixed to the right side wall of the annular plate, a placing groove is formed at the top end of the placing block, and a rubber strip is fixed to the inner side wall of the placing groove.

[0011] Further, the clamping and fixing assembly includes two sleeves fixed to the inner side of the collar. A moving rod is slidably connected inside the sleeve. Clamping blocks are fixed to the opposite sides of the two moving rods. Soft blocks are fixed to the opposite ends of the two clamping blocks. Miniature motors are fixed to the opposite walls inside the two sleeves. The output end of the miniature motor is fixed with a screw rod.

[0012] Further, threaded grooves are formed on the opposite sides of the two moving rods, and the screw rod is threadedly connected inside the threaded groove.

[0013] Further, limiting blocks are fixed to the upper and lower ends of the moving rod, sliding grooves are formed on the upper and lower walls inside the sleeve, and the limiting block is slidably connected inside the sliding groove.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0015] In this non-destructive detection device for the vibration sound measurement of concrete-filled steel tubes, by setting the position of the sound collector without manual adjustment and without using multiple sound collectors to collect the sound of concrete-filled steel tubes, the detection cost can be effectively reduced. And by setting the clamping and fixing assembly, the collar can be fixed to the outside of the concrete-filled steel tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the collar and the annular plate of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the clamping block and the moving rod of the present utility model.

[0019] In the figure: 1 sound collector, 2 excitation hammer, 3 collar, 4 concave block, 5 placement block, 6 vertical rod, 61 annular plate, 62 clamping block, 63 internal gear ring, 64 slot hole, 65 rotary motor, 66 gear, 67 sleeve, 68 shifting rod, 69 clamping block, 610 soft block, 611 micro motor, 612 screw rod. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figure 1 , a non-destructive detection device for exciting sound wave testing of concrete-filled steel tube in this embodiment, includes a sound collector 1, an excitation hammer 2, a collar 3, a concave block 4 and a placement block 5. A rotating structure for driving the sound collector 1 to rotate is provided on the outer side of the collar 3, and a clamping and fixing assembly for clamping and fixing it to the outside of the concrete-filled steel tube is provided on the inner side of the collar 3. A vertical rod 6 is fixed to the lower end of the concave block 4.

[0022] Please refer to Figures 1 to 2 , the rotating structure in this embodiment includes an annular plate 61 rotatably connected to the outer surface of the collar 3. Two clamping blocks 62 are fixed to the front and rear walls on the inner side of the annular plate 61. An internal gear ring 63 is fixed to the inner side wall of the annular plate 61. A gear 66 is meshed with the inner side wall of the internal gear ring 63. The rotating structure further includes a slot hole 64 provided on the front wall of the collar 3, and a rotary motor 65 is fixed to the top wall inside the slot hole 64.

[0023] Among them, two annular grooves are formed on the outer surface of the collar 3. The clamping blocks 62 are located inside the annular grooves and are slidably connected to them, so that the annular plate 61 can be clamped to the outside of the collar 3 through the two groups of clamping blocks 62, so that the annular plate 61 can stably rotate on the outside of the collar 3.

[0024] And, the output end of the rotary motor 65 is fixed to the inside of the gear 66, so that the rotary motor 65 can drive the gear 66 to rotate in the slot hole 64 of the collar 3.

[0025] In addition, the top end of the annular plate 61 is fixed to the lower end of the vertical rod 6. Rubber blocks are fixed to the front and rear walls on the inner side of the concave block 4, so that the sound collector 1 is moved between the two rubber blocks and can be clamped inside the concave block 4. When the annular plate 61 drives the vertical rod 6 to rotate 360 degrees, the vertical rod 6 can drive the sound collector 1 to rotate through the concave block 4.

[0026] Meanwhile, the placement block 5 is fixed to the right side wall of the annular plate 61. A placement groove is formed at the top end of the placement block 5, and a rubber strip is fixed to the inner side wall of the placement groove. When the excitation hammer 2 is not in use, it can be placed in the placement groove of the placement block 5 for storing the excitation hammer 2. Moreover, the excitation hammer 2 located in the placement groove is squeezed by the rubber strip so that it can be stably located in the placement block 5.

[0027] Please refer to Figure 1 and Figure 3 In this embodiment, the clamping and fixing assembly includes two sleeves 67 fixed to the inside of the collar 3. A moving rod 68 is slidably connected inside the sleeve 67. Clamping blocks 69 are fixed to the opposite sides of the two moving rods 68. Soft blocks 610 are fixed to the opposite ends of the two clamping blocks 69. The soft blocks 610 are rubber or silica gel soft blocks, enabling the clamping blocks 69 to fit concrete-filled steel tubes of different shapes and sizes and enhancing the friction therebetween. Miniature motors 611 are fixed to the opposite inner walls of the two sleeves 67, and screw rods 612 are fixed to the output ends of the miniature motors 611.

[0028] Secondly, threaded grooves are formed on the opposite sides of the two moving rods 68, and the screw rod 612 is threadedly connected to the inside of the threaded grooves, enabling the screw rod 612 to extend into the inside of the moving rod 68. The two sleeves 67 are hollow inside and the opposite ends are missing, facilitating the moving rod 68 to move into or out of its inside.

[0029] Moreover, limit blocks are fixed to the upper and lower ends of the moving rod 68, and sliding grooves are formed on the upper and lower inner walls of the sleeve 67. The limit blocks are slidably connected to the inside of the sliding grooves, preventing the moving rod 68 from falling out of the sleeve 67.

[0030] It should be noted that the sound collector 1, the excitation hammer 2 and the electronic components mentioned in the text are all well-known to the public in the prior art, and the control method is controlled by the control terminal, which is well-known to the public in the prior art. Moreover, the existing power connection technology and power supply also belong to the common knowledge in this field. Those skilled in the art can simply implement it through programming. Therefore, the working principle, circuit connection and control method are not elaborated in the text.

[0031] The working principle of the above embodiment is as follows:

[0032] During use, when the sound collector 1 collects the sound of the concrete-filled steel tube, the output end of the rotating motor 65 drives the gear 66 to rotate within the slot hole 64 of the collar 3, enabling the gear 66 to engage with the inner sidewall of the internal gear ring 63. As a result, the internal gear ring 63 can rotate on the outside of the collar 3, allowing the annular plate 61 to rotate on its outside. The annular plate 61 can drive the sound collector 1 to rotate around the concrete-filled steel tube through the vertical rod 6 and the concave block 4. Thus, there is no need to manually adjust the position of the sound collector 1, and there is no need to use multiple sound collectors 1 to collect the sound of the concrete-filled steel tube, effectively reducing the detection cost.

[0033] When it is necessary to detect the concrete-filled steel tube, by sleeving the collar 3 on the outside of the concrete-filled steel tube, the staff controls the two micro-motors 611 through the control end to operate, and their output ends drive the two screw rods 612 to rotate. The screw rods 612 are threadedly connected to the threaded grooves of the moving rods 68, so that the moving rods 68 gradually move out of the inside of the sleeve 67, and the distance between the two clamping blocks 69 gradually shortens. Then, the collar 3 can be clamped and fixed on the concrete-filled steel tube, reducing the cumbersome process caused by adjusting the height of the tripod or adjusting its position due to uneven ground, and thus improving the convenience during detection.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-destructive testing device for detecting the vibration sound of concrete-filled steel tubes, comprising a sound collector (1), a vibration hammer (2), a collar (3), a concave block (4) and a placement block (5), characterized in that: On the outer side of the collar (3), there is a rotating structure for driving the sound collector (1) to rotate. On the inner side of the collar (3), there is a clamping and fixing assembly for clamping and fixing it to the outside of the concrete-filled steel tube. At the lower end of the concave block (4), a vertical rod (6) is fixed; The rotating structure includes an annular plate (61) rotatably connected to the outer surface of the collar (3). On the front and rear walls of the inner side of the annular plate (61), two clamping blocks (62) are fixed respectively. On the inner side wall of the annular plate (61), an internal gear ring (63) is fixed. A gear (66) meshes with the inner side wall of the internal gear ring (63). The rotating structure further includes a slot hole (64) provided on the front wall of the collar (3). At the top wall of the inner side of the slot hole (64), a rotating motor (65) is fixed.

2. The non-destructive testing device for detecting the vibration sound of concrete-filled steel tubes according to claim 1, characterized in that: Two annular grooves are formed on the outer surface of the collar (3). The clamping blocks (62) are located inside the annular grooves and are slidably connected thereto.

3. The non-destructive detection device for steel tube concrete by vibration acoustic measurement according to claim 1, characterized in that: The output end of the rotating motor (65) is fixed to the inner side of the gear (66).

4. The non-destructive testing device for detecting the vibration sound of concrete-filled steel tubes according to claim 1, characterized in that: The top end of the annular plate (61) is fixed to the lower end of the vertical rod (6). On the front and rear walls of the inner side of the concave block (4), rubber blocks are fixed respectively.

5. The non-destructive detection device for the sound measurement of concrete-filled steel tubes by vibration according to claim 1, characterized in that: The placing block (5) is fixed to the right side wall of the annular plate (61). On the top end of the placing block (5), a placing groove is formed. On the inner side wall of the placing groove, a rubber strip is fixed.

6. The non-destructive testing device for detecting the vibration sound of concrete-filled steel tubes according to claim 1, characterized in that: The clamping and fixing assembly includes two sleeves (67) fixed to the inner side of the collar (3). A moving rod (68) is slidably connected inside the sleeve (67). On the opposite sides of the two moving rods (68), clamping blocks (69) are fixed respectively. On the opposite ends of the two clamping blocks (69), soft blocks (610) are fixed respectively. On the opposite walls of the inner sides of the two sleeves (67), micro motors (611) are fixed respectively. The output end of the micro motor (611) is fixed with a screw rod (612).

7. An ultrasonic non-destructive testing device for concrete-filled steel tubes according to claim 6, characterized in that: On the opposite sides of the two moving rods (68), threaded grooves are formed respectively. The screw rod (612) is threadedly connected to the inside of the threaded groove.

8. An ultrasonic nondestructive testing device for concrete-filled steel tubes according to claim 6, characterized in that: At the upper and lower ends of the moving rod (68), limiting blocks are fixed respectively. On the upper and lower walls of the inner side of the sleeve (67), sliding grooves are formed respectively. The limiting blocks are slidably connected to the inside of the sliding grooves.

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