A pile foundation sounding pipe protection sleeve

Abstract

The utility model provides a kind of pile foundation acoustic pipe protective sleeve, including the sleeve pipe for being set to the upper end of pile foundation acoustic pipe to close pile foundation acoustic pipe, the sleeve pipe includes tube body and the top wall closed in the upper end of tube body, the lower end of the tube body is open and forms insertion port, the outer surface of the sleeve pipe is equipped with fluorescent band.The utility model aims at providing a kind of pile foundation acoustic pipe protective sleeve, which is reliable in protecting pile foundation acoustic side pipe, solves the problem of lack of special protection device for protection of pile foundation acoustic side pipe.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a protective sleeve for a pile foundation acoustic logging tube. Background Technology

[0002] To inspect the quality of concrete pile foundations, acoustic transducers are pre-embedded within the piles. Acoustic testing instruments are then inserted into the pile through these transducers for testing. To protect these transducers from objects falling in, the current method involves using a flexible object, rolled into a ball, to plug the upper end of the transducer. However, this method lacks specialized protective devices. Furthermore, the method of using a rolled-up flexible object for plugging is prone to accidental insertion that can lead to difficulty in removal, and the protective effect is poor. Utility Model Content

[0003] The present invention aims to provide a protective sleeve for the acoustic logging pipe of the pile foundation that provides reliable protection, thus solving the problem of the lack of a dedicated protective device for the acoustic logging pipe of the pile foundation.

[0004] To achieve the above objectives, this utility model employs the following technology: a protective sleeve for a pile foundation sonic logging pipe, characterized in that it includes a sleeve for fitting onto the upper end of the pile foundation sonic logging pipe to seal it. The sleeve includes a pipe body and a top wall sealed at the upper end of the pipe body. The lower end of the pipe body is open to form an insertion port. A fluorescent strip is provided on the outer surface of the sleeve. In use, the sleeve is fitted onto the upper end of the pile foundation sonic logging pipe with the insertion port facing downwards to seal the pipe and prevent objects from falling into it. The fluorescent strip then illuminates to identify the location of the pile foundation sonic logging pipe.

[0005] Preferably, the sleeve is an elastic structure capable of elastic expansion and contraction. The insertion port is connected to a rigid gripping ring. Several axially extending swing rods are provided within the tube wall, distributed circumferentially around the tube. A rigid ring is located at one end of the tube's sidewall connected to the top wall. One end of each swing rod is rotatably fitted onto the rigid ring. The other end of each swing rod is equipped with a pressing spring that drives the swing rod to move inwards towards the inside of the tube, pressing the tube against the pile foundation sonic logging pipe, and a swing rod relaxation structure that drives the swing rod to move away from the inside of the tube. When the sleeve needs to be removed or fitted, the swing rod relaxation structure releases the pressure on the sleeve. Then, the rigid gripping ring is held to fit the sleeve onto or remove it from the pile foundation sonic logging pipe. When the sleeve is fitted onto the pile foundation sonic logging pipe, the pressing spring tightens the sleeve. This allows for both tight fitting and easy removal.

[0006] Preferably, the entire circumference of the insertion port is sealed and fixed together with the rigid gripping ring. This avoids gaps between the rigid gripping ring and the sleeve, preventing interference with the sleeve's fit onto the pile foundation sonic logging pipe.

[0007] Preferably, the end of the swing arm connected to the rigid ring is pressed against the sleeve. This improves the tightening effect of the sleeve.

[0008] Preferably, the rigid ring is aligned with the top wall, allowing the pendulum to swing at a large amplitude.

[0009] Preferably, the sleeve is a castable component, and the rigid ring is provided with two retaining rings distributed on both sides of the swing arm. This prevents molten sleeve material from entering the rotating surfaces of the swing arm and the rigid ring during casting, thus affecting the swing arm's oscillation.

[0010] Preferably, the swing arm is provided with an annular sealing groove, and the outer edge of the retaining ring is provided with a sealing flange that passes through the annular sealing groove. The sealing flange is annular with the axis of the swing arm as its center line. This allows the swing arm to swing easily even though the sleeve is cast.

[0011] Preferably, a clearance gap is provided between the retaining ring and the swing arm. This allows the swing arm to swing with less effort.

[0012] Preferably, the rigid grip ring has receiving pits distributed circumferentially along the sleeve, located on the upper end face of the rigid grip ring. Each swing arm is correspondingly inserted into one of these receiving pits. The swing arm relaxation structure includes a rocker arm hinged within the receiving pit and a pressing pin abutting one end of the rocker arm, passing through the outer wall of the receiving pit. One end of a pressing spring presses against the other end of the rocker arm, and the other end connects to the inner surface of the outer wall of the receiving pit. The swing arm overlaps the side of the rocker arm facing the outer wall of the receiving pit. In use, holding all the pressing pins causes them to retract, driving the rocker arm to swing and overcoming the spring force of the pressing spring, thus driving the swing arm to swing in the release direction. When the pressing action on the pressing pins is lost, the rocker arm and swing arm return to their original positions under the action of the pressing spring.

[0013] Preferably, the device also includes an elastic gripping ring fitted onto the rigid gripping ring, with the outer end of the pressing pin connected to the inner circumferential surface of the elastic gripping ring. During use, gripping the elastic gripping ring to drive the pressing pin improves the reliability of simultaneously driving all pressing pins and enhances user comfort. Beneficial effects: It provides reliable protection for the acoustic waveguide of the pile foundation, preventing it from falling into the acoustic waveguide, and allows for nighttime identification. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the present invention in use.

[0015] Figure 2 for Figure 1 A magnified view of a portion of point A;

[0016] Figure 3 for Figure 1 A magnified view of a portion of point B;

[0017] Figure 4 for Figure 3 A magnified view of a portion at point C;

[0018] Figure 5 for Figure 1 A schematic diagram of the D-D cross-section;

[0019] Figure 6 for Figure 5 A magnified view of a portion of point E;

[0020] Figure 7 for Figure 6 A partially enlarged schematic diagram of point F. In the diagram: 1. Pile foundation sonic logging pipe; 2. Sleeve; 3. Pipe body; 4. Top wall; 5. Rigid gripping ring; 6. Swing rod; 7. Rigid ring; 8. Retaining ring; 9. Sealing flange; 10. Pressing spring; 11. Swing rod relaxation structure; 12. Clearance gap; 13. Receiving pit; 14. Hinge shaft; 15. Seesaw rod; 16. Outer wall of the receiving pit; 17. Pressing pin; 18. Elastic gripping ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] See Figures 1 to 7A protective sleeve for a pile foundation sonic logging tube includes a sleeve 2 for fitting onto the upper end of a pile foundation sonic logging tube 1 to seal the tube. The sleeve includes a tube body 3 and a top wall 4 sealing the upper end of the tube body, with the lower end of the tube body open to form an insertion port. A fluorescent strip is provided on the outer surface of the sleeve. In use, the sleeve is fitted onto the upper end of the pile foundation sonic logging tube with the insertion port facing downwards to seal the tube. The sleeve is an elastic structure (specifically rubber) capable of elastic expansion and contraction. A rigid gripping ring 5 is connected to the insertion port. Several axially extending swing rods 6 are provided within the tube body wall, distributed circumferentially. A rigid ring 7 is provided at one end of the tube body sidewall connected to the top wall. One end of each swing rod is rotatably fitted onto the rigid ring. The end of the swing rod connected to the rigid ring is pressed against the sleeve. The rigid ring is aligned with the top wall. The sleeve is a cast-in-place component, and two retaining rings 8 are distributed on both sides of the swing rod on the rigid ring. The swing arm is provided with an annular sealing groove, and the outer edge of the retaining ring is provided with a sealing flange 9 passing through the annular sealing groove. The sealing flange is annular with the axis of the swing arm swinging as the center line. The other end of the swing arm is provided with a pressing spring 10 that drives the swing arm to move towards the inside of the tube body and presses the tube body against the pile foundation sonic logging tube, and a swing arm relaxation structure 11 that drives the swing arm to move away from the inside of the tube body. When the tube sleeve is to be removed or put on, the swing arm relaxation structure releases the pressing action of the swing arm on the tube sleeve, and then the rigid holding ring is held to put the tube sleeve on the pile foundation sonic logging tube or remove it. When the tube sleeve is put on the pile foundation sonic logging tube, the tube sleeve is tightened on the pile foundation sonic logging tube under the action of the pressing spring. The entire circumference of the insertion port is sealed and fixed together with the rigid holding ring. A clearance gap 12 is provided between the retaining ring and the swing arm. The rigid grip ring has receiving pits 13 distributed along the circumference of the sleeve. The receiving pits are located on the upper end face of the rigid grip ring. The rocker arms are correspondingly inserted into the receiving pits. The rocker arm relaxation structure includes a rocker arm 15 hinged in the receiving pit by a hinge pin 14 and a pressing pin 17 abutting one end of the rocker arm, which is inserted into the outer wall 16 of the receiving pit. One end of the pressing spring presses on the other end of the rocker arm, and the other end is connected to the inner surface of the outer wall of the receiving pit. The rocker arm overlaps on the side of the rocker arm facing the outer wall of the receiving pit. In use, holding all the pressing pins causes the pressing pins to retract, driving the rocker arm to swing and overcoming the elastic force of the pressing spring, thereby driving the rocker arm to swing in the release direction. When the pressing action on the pressing pins is lost, the rocker arm and the rocker arm return to their original positions under the action of the pressing spring. It also includes an elastic grip ring 18 sleeved on the rigid grip ring, and the outer end of the pressing pin is connected to the inner circumferential surface of the elastic grip ring. When using, hold the elastic grip ring to drive the pressing pin.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 which is defined by the appended claims and their equivalents.

Claims

1. A protective sleeve for a pile foundation acoustic logging tube, characterized in that, It includes a sleeve for fitting onto the upper end of a sonic logging tube in a pile foundation to seal the tube. The sleeve includes a tube body and a top wall that is closed at the upper end of the tube body. The lower end of the tube body is open to form an insertion port. A fluorescent strip is provided on the outer surface of the sleeve.

2. The protective sleeve for a pile foundation acoustic logging pipe according to claim 1, characterized in that, The sleeve is an elastic structure capable of elastic expansion and contraction. The insertion port is connected to a rigid gripping ring. The tube wall is provided with a plurality of swing rods extending axially along the circumference of the tube body. A rigid ring is provided at one end of the tube body side wall connected to the top wall. One end of the swing rod is rotatably sleeved on the rigid ring. The other end of the swing rod is provided with a pressing spring that drives the swing rod to move toward the inside of the tube body to press the tube body against the pile foundation sonic logging tube, and a swing rod relaxation structure that drives the swing rod to move away from the inside of the tube body.

3. A protective sleeve for a pile foundation acoustic logging pipe according to claim 2, characterized in that, The entire circumference of the insertion port is sealed and fixed together with the rigid gripping ring.

4. A protective sleeve for a pile foundation acoustic logging pipe according to claim 2 or 3, characterized in that, The end of the swing arm connected to the rigid ring is pressed against the sleeve.

5. A protective sleeve for a pile foundation acoustic logging pipe according to claim 4, characterized in that, The rigid ring is aligned with the top wall.

6. A protective sleeve for a pile foundation acoustic logging pipe according to claim 4, characterized in that, The sleeve is a cast part, and the rigid ring is provided with two retaining rings distributed on both sides of the swing arm.

7. A protective sleeve for a pile foundation acoustic logging pipe according to claim 6, characterized in that, The swing arm is provided with an annular sealing groove, and the outer edge of the retaining ring is provided with a sealing flange that passes through the annular sealing groove. The sealing flange is annular with the axis of the swing arm as the center line.

8. A protective sleeve for a pile foundation acoustic logging pipe according to claim 7, characterized in that, A clearance is provided between the retaining ring and the swing arm.

9. A protective sleeve for a pile foundation acoustic logging pipe according to claim 2 or 3, characterized in that, The rigid grip ring has receiving pits distributed along the circumference of the sleeve. The receiving pits are located on the upper end surface of the rigid grip ring. The swing rods are correspondingly inserted into the receiving pits. The swing rod relaxation structure includes a rocker arm hinged in the receiving pit by a hinge shaft and a pressing pin abutting one end of the rocker arm through the outer wall of the receiving pit. One end of the pressing spring presses on the other end of the rocker arm, and the other end is connected to the inner surface of the outer wall of the receiving pit. The swing rod overlaps on the side of the rocker arm facing the outer wall of the receiving pit.

10. A protective sleeve for a pile foundation acoustic logging pipe according to claim 9, characterized in that, It also includes an elastic grip ring fitted on a rigid grip ring, with the outer end of the pressing pin connected to the inner circumferential surface of the elastic grip ring.

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