A reusable sounding tube

Abstract

This utility model discloses a reusable sonic logging pipe, comprising a pipe body one, a sleeve disposed at the top of the pipe body one, at least two locking holes arranged circumferentially on the inner wall of the sleeve, a detachable pin device disposed inside the sleeve for temporary fixation to the sleeve by a locking method, a threaded external connector connected to the pin device by threads, and a pipe body two disposed at the top of the threaded external connector. By providing a pin device that can be detachably connected to the pipe body one, after the pile is inspected, the pre-embedded pipe body two and the pin device in the empty pile area can be quickly and completely pulled out and recycled. After inspection and maintenance, it can be reused multiple times in this project or other projects. The cost is far lower than that of disposable sonic logging pipes, avoiding the consumption of large amounts of steel, conforming to the concept of green construction and sustainable development, and reducing the energy consumption and carbon emissions required to produce new pipes.

Description

Technical Field

[0001] This utility model relates to the field of engineering pile integrity detection technology, and in particular to a reusable acoustic logging tube. Background Technology

[0002] Sonic logging is a key method for detecting the integrity of cast-in-place piles. It requires the pre-embedded sonic logging tubes inside the pile to provide a channel for the probe. With the development of engineering construction, in order to save engineering costs, there are increasingly more cases where engineering piles are not constructed to the ground and there is backfilling above them. At present, reusable sonic logging tubes are mainly fixed by threaded connection or clamping. When the sonic logging tubes are buried by the backfill soil layer, the sonic logging tubes pre-embedded in this empty pile section face the problem of being difficult to recover. As a result, the sonic logging tubes can only be used once, which leads to high construction costs. This not only causes serious waste of steel, but also goes against the concept of green construction. Utility Model Content

[0003] To overcome the shortcomings of the above-mentioned background technology, this utility model provides a reusable sonic logging pipe with a detachable connecting pin device, which can pull out and recycle the sonic logging pipe pre-embedded in the empty pile section, greatly reducing the cost of use and avoiding the consumption of a large amount of steel.

[0004] The technical implementation scheme of this utility model is as follows: A reusable acoustic logging tube, characterized in that it comprises: tube body one; A sleeve is disposed at the top of the tube body, and the inner wall of the sleeve is provided with at least two locking holes along the circumferential direction; A detachable pin device is provided inside the sleeve and is used to temporarily fix it to the sleeve by means of a snap-fit. A threaded external connector is provided, which is connected to the pin device by a thread, and the top of the threaded external connector is provided with a tube body.

[0005] Furthermore, the latch device includes: A connecting pipe is disposed inside the sleeve; At least two cavities are distributed on the connecting tube, each corresponding to a card hole; Each locking post is movably disposed within each cavity, and a spring is connected between each locking post and the inner wall of the cavity. An internal threaded connector is located at the top of the connecting pipe and is used to connect with the external threaded connector via threads.

[0006] Furthermore, the outer diameter of the connecting tube is adapted to the inner diameter of the sleeve, so that when the hemispherical locking block is inserted into the locking hole, the outer wall of the connecting tube fits against the inner wall of the sleeve, thereby limiting the radial sway of the connecting tube.

[0007] Furthermore, the spring is used to provide radial elastic force to the locking pin, allowing it to partially extend out of the cavity and engage with the corresponding locking hole.

[0008] Furthermore, the locking post includes a movable plate slidably disposed within the cavity, and a hemispherical locking block fixedly disposed on the side of the movable plate away from the spring; Wherein, after the hemispherical block is inserted into the card hole, it forms a detachable fixed connection to realize the circumferential positioning of the pin device on the sleeve.

[0009] Furthermore, the radius of curvature of the hemispherical block is adapted to the radius of curvature of the hole edge, so that the hemispherical block can smoothly engage or disengage from the hole under the elastic force of the spring.

[0010] Furthermore, the first and second tubes are made of Q235B or Q345B material, with a length of 6m and an inner diameter of 50mm. The wall thickness of the first tube is 3-5mm, and the wall thickness of the second tube is 6-8mm. The thickened wall of the second tube is used to enhance the overall rigidity to adapt to repeated use.

[0011] Furthermore, the sleeve and the first tube body, as well as the threaded external connector and the second tube body, are seamless integral structures or connected by high-strength sealing welding.

[0012] Furthermore, the upper part of the inner wall of the second tube is provided with internal threads.

[0013] Furthermore, the internal thread is used to connect to the external threaded connector of another pipe body to extend the pipe body.

[0014] This utility model has the following advantages: By incorporating a pin device that can be detachably connected to the first pipe body, the second pipe body and the pin device pre-embedded in the empty pile can be quickly and completely pulled out and recycled after the pile body has been inspected. After inspection and maintenance, it can be reused multiple times in this project or other projects. The cost is far lower than that of disposable sonic logging pipes, avoiding the consumption of a large amount of steel. It conforms to the concept of green construction and sustainable development, and reduces the energy consumption and carbon emissions required to produce new pipes. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0017] Figure 3This is a partial exploded structural diagram of the present invention.

[0018] Figure 4 This is a cross-sectional view of the pin device of this utility model.

[0019] Figure 5 This is a cross-sectional structural diagram of the second tube body of this utility model.

[0020] Figure 6 This is a schematic diagram of the installation of this utility model.

[0021] In the above attached diagrams: 1: Pipe body one, 21: Sleeve, 22: Clamping hole, 3: Pin device, 31: Connecting pipe, 32: Cavity, 331: Movable plate, 332: Hemispherical clamping block, 34: Spring, 35: Threaded internal connector, 41: Threaded external connector, 42: Pipe body two, 43: Internal thread. Detailed Implementation

[0022] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Example

[0023] like Figures 1 to 6 The first embodiment of the reusable acoustic logging tube of the present invention is shown, which includes a tube body 1, a sleeve 21 movably disposed on the top of the tube body 1, the sleeve 21 is provided with twelve locking holes 22, a pin device 3 is provided inside the sleeve 21, the pin device 3 is used to temporarily fix it to the sleeve 21 by snap-fit, the pin device 3 is provided with a threaded external connector 41, and the top of the threaded external connector 41 is provided with a tube body 42.

[0024] Tube 1 and tube 2 are made of Q235B or Q345B material, with a length of 6m. The inner diameter of both tube 1 and tube 2 is 50mm. The wall thickness of tube 1 is 3-5mm, and the wall thickness of tube 2 is 6-8mm. The thickened wall of tube 2 is used to enhance the overall rigidity to accommodate repeated use. Of course, in a preferred embodiment, the wall thickness of tube 1 is 4mm, and the wall thickness of tube 2 is 7mm.

[0025] The pin device 3 includes a connecting pipe 31, which is located inside the sleeve 21. The outer diameter of the connecting pipe 31 is adapted to the inner diameter of the sleeve 21. The connecting pipe 31 is provided with twelve cavities 32, each corresponding to a locking hole 22. Each cavity 32 is provided with a locking post, and each locking post is connected to a cavity 32 with a spring 34. The spring 34 is made of carbon spring steel, which has high strength, good elasticity, and low cost. The top of the connecting pipe 31 is provided with a threaded internal connector 35. Of course, in other embodiments, the number of cavities 32 and locking holes 22 can be four, six, eight, ten, fourteen, etc. It should be noted that these numbers are only preferred and are not restrictive.

[0026] The locking pin includes a movable plate 331 slidably disposed within the cavity 32, and a hemispherical locking block 332 fixedly disposed on the side of the movable plate 331 away from the spring 34. The hemispherical locking block 332 is engaged with the locking hole 22 to form a detachable fixed connection, thereby realizing the circumferential positioning of the pin device 3 in the sleeve 21. The spherical curvature radius of the hemispherical locking block 332 is adapted to the curvature radius of the hole edge of the locking hole 22, so that the hemispherical locking block 332 can smoothly engage or disengage from the locking hole 22 under the elastic force of the spring 34.

[0027] Specific working principle: such as Figure 6 As shown, when it is necessary to install the sonic logging tube, the non-recyclable tube body 1 is directly poured into the concrete wall. Then, the detachable pin device 3 with a length of 20cm is inserted into the sleeve 21. After the pin device 3 is installed, the threaded external connector 41 on the tube body 42 is then installed into the pin device 3 by threaded connection, thus completing the installation of the entire sonic logging tube. Finally, the backfill soil layer covers the tube body 1, the pin device 3 installed on the tube body 1, and the tube body 42 located in the concrete wall, leaving only the pipe opening at the top of the tube body 42 exposed. The installed sonic logging tube can then provide a safe and smooth passage for the ultrasonic detection probe, facilitating the detection of construction quality.

[0028] The specific installation method of the detachable pin device 3 is as follows: First, the worker rotates the connecting pipe 31 so that the hemispherical locking block 332 is vertically aligned with the locking hole 22. Then, the connecting pipe 31 is inserted into the sleeve 21. The inner wall of the sleeve 21 pushes the hemispherical locking block 332 and the movable plate 331 to move away from the sleeve 21, and the spring 34 is compressed. When the hemispherical locking block 332 moves downward and is aligned with the locking hole 22 at a horizontal height, the compressed spring 34 releases its elastic force, pushing the movable plate 331 and the hemispherical locking block 332 towards the sleeve 21. The hemispherical locking block 332 moves and engages with the locking hole 22. This action is accompanied by a clear "click" sound, providing effective auditory feedback to the operator, indicating that the pin device 3 has been installed. After the pin device 3 is engaged and fixed, the pin device 3 achieves circumferential positioning on the sleeve 21 through the cooperation of the hemispherical locking block 332 and the locking hole 22, preventing the rotation of the connecting pipe 31 and the threaded inner connector 35. This facilitates the smooth screwing of the threaded outer connector 41 into the threaded inner connector 35 and tightening it, ensuring the reliability of the threaded connection and forming a stable, detachable, and fixed connection.

[0029] When it is necessary to recycle the reusable pipe body 42 and the pin device 3, the workers fix a detachable pull plate to the pipe body 42 with bolts. Then, by repeatedly jacking the pull plate with a hydraulic jack, the pipe body 42 is pulled upward. The pipe body 42 then moves the pin device 3 upward together. Under the huge axial tension, the hemispherical block 332 separates from the locking hole 22, and finally brings the pipe body 42 and the pin device 3 out from the backfill soil layer, completing the recycling of the pipe body 42 and the pin device 3.

[0030] This achieves the following effect: By setting up a pin device 3 that can be detachably connected to pipe body 1, after the pile body has been inspected, the pre-embedded pipe body 42 and pin device 3 in the empty pile part can be completely pulled out and recycled. After inspection and maintenance, it can be reused multiple times in this project or other projects. The cost is much lower than that of disposable sonic logging pipes, avoiding the consumption of a large amount of steel, which is in line with the concept of green construction and sustainable development, and reduces the energy consumption and carbon emissions required to produce new pipes. Example

[0031] like Figures 1 to 6 As shown, this embodiment is similar to embodiment one, except that the upper part of the inner wall of the second tube 42 is provided with an internal thread 43, which is used to connect the threaded external connector 41 of the other second tube 42 to achieve the extension of the tube.

[0032] When the backfill layer is thick, workers can screw the threaded external connector 41 of another pipe body 2 42 into the internal thread 43 of the first pipe body 2 42. The number of pipe bodies 2 42 installed is adapted to the thickness of the backfill layer, so that this sonic logging pipe can be used in construction sites with different conditions. By adopting standardized pipe bodies 2 42 with uniform specifications, it is beneficial to improve the transportation, use, maintenance and recycling process of sonic logging pipes, and improve the management level of project construction materials.

[0033] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A reusable sounding tube characterized by, include: tube body one; A sleeve is disposed at the top of the tube body, and the inner wall of the sleeve is provided with at least two locking holes along the circumferential direction; A detachable pin device is provided inside the sleeve and is used to temporarily fix it to the sleeve by means of a snap-fit. A threaded external connector is provided, which is connected to the pin device by a thread, and the top of the threaded external connector is provided with a tube body.

2. A reusable sounding tube according to claim 1, characterized in that The latching device includes: A connecting pipe is disposed inside the sleeve; At least two cavities are distributed on the connecting tube, each corresponding to a card hole; Each locking post is movably disposed within each cavity, and a spring is connected between each locking post and the inner wall of the cavity. An internal threaded connector is located at the top of the connecting pipe and is used to connect with the external threaded connector via threads.

3. A reusable sounding tube according to claim 2, characterized in that: The outer diameter of the connecting tube is adapted to the inner diameter of the sleeve, so that when the locking pin is inserted into the locking hole, the outer wall of the connecting tube fits against the inner wall of the sleeve, thereby limiting the radial sway of the connecting tube.

4. A reusable sounding tube according to claim 2, characterized in that: The spring provides radial elastic force to the locking pin, allowing it to partially extend out of the cavity and engage with the corresponding locking hole.

5. A reusable sounding tube according to claim 2, characterized in that: The locking post includes a movable plate that is slidably disposed in the cavity, and a hemispherical locking block that is fixedly disposed on the side of the movable plate away from the spring; Wherein, after the hemispherical block is inserted into the card hole, it forms a detachable fixed connection to realize the circumferential positioning of the pin device on the sleeve.

6. A reusable sounding tube according to claim 5, characterized in that: The radius of curvature of the hemispherical block is adapted to the radius of curvature of the edge of the card hole, so that the hemispherical block can smoothly engage or disengage from the card hole under the elastic force of the spring.

7. A reusable sounding tube according to claim 1 or 2, characterized in that: The first and second tubes are made of Q235B or Q345B material, with a length of 6m and an inner diameter of 50mm. The wall thickness of the first tube is 3-5mm, and the wall thickness of the second tube is 6-8mm. The thickened wall of the second tube is used to enhance the overall rigidity to adapt to repeated use.

8. A reusable sounding tube according to claim 1 or 2, characterized in that: The sleeve and the first tube body, as well as the threaded external connector and the second tube body, are seamless integral structures or connected by high-strength sealing welding.

9. A reusable sounding tube according to claim 1, characterized in that: The upper part of the inner wall of the tube body is provided with internal threads.

10. A reusable acoustic logging tube according to claim 9, characterized in that: The internal thread is used to connect to the external threaded connector of another pipe body to extend the pipe body.

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