Pile foundation sounding pipe sealing device

Abstract

The invention relates to the technical field of building use, and discloses a pile foundation sounding pipe sealing device which comprises a limiting block, a sounding pipe body is slidably connected into the limiting block, a connecting block is fixedly connected to the outer wall of the limiting block, and a threaded rod is in threaded connection with the interior of the connecting block. The bottom end of the threaded rod is rotationally connected with a limiting plate, the upper surface of the limiting plate is fixedly connected with a telescopic rod, the outer wall of the telescopic rod is slidably connected with a first spring, and the top end of the telescopic rod is fixedly connected with an abutting plate. A limiting plate is pulled through a threaded rod to move upwards, a sealing ring sleeve can be driven through an abutting plate to be arranged on the sounding pipe body in a sleeving mode, the sounding pipe body can be firmly sleeved with the sealing ring sleeve under springback of a first spring, then the sealing effect between the sounding pipe body and the pile bottom soil surface is remarkably improved, and the sealing effect between the sounding pipe body and the pile bottom soil surface is improved. Slurry overflowing and grouting hole blocking are effectively prevented, and grouting quality and pile foundation safety are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building use, and specifically relates to a sealing device for a pile foundation acoustic logging tube. Background Art

[0002] In the construction of pile foundation projects, in order to detect the integrity and quality of the pile body concrete, acoustic logging tubes are usually embedded in the piles. At the same time, in order to improve the pile tip bearing capacity and reduce settlement, the pile bottom grouting technology is often used. However, in the actual construction process, due to the inability to completely fix the acoustic logging tube during pile driving, there is a gap between the acoustic logging tube and the pile bottom soil surface, and slurry overflow and grouting hole blockage are likely to occur during grouting, seriously affecting the grouting effect and the quality of the pile foundation. In order to improve the sealing effect between the acoustic logging tube body and the pile bottom soil surface and effectively prevent slurry overflow and grouting hole blockage, a sealing device for a pile foundation acoustic logging tube is needed.

[0003] Existing solutions mostly rely on manual adjustment and filling materials, but these methods are not only inefficient but also difficult to ensure long-term stable effects. At the same time, the existing technologies have not fundamentally solved the problem of the gap between the acoustic logging tube and the pile bottom soil surface, resulting in easy slurry overflow during grouting and easy blockage of the grouting holes, thus affecting the grouting quality and the safety performance of the pile foundation. In addition, these solutions generally have problems such as complex operation, high cost, and difficult maintenance during construction, and it is difficult to meet the needs of large-scale engineering construction. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a sealing device for a pile foundation acoustic logging tube to solve the problem of the gap between the acoustic logging tube and the pile bottom soil surface.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: A sealing device for a pile foundation acoustic logging tube includes a limiting block. An acoustic logging tube body is slidably connected inside the limiting block. A connecting block is fixedly connected to the outer wall of the limiting block. A threaded rod is threadedly connected inside the connecting block. The bottom end of the threaded rod is rotatably connected to a limiting plate. A telescopic rod is fixedly connected to the upper surface of the limiting plate. A first spring is slidably connected to the outer wall of the telescopic rod. The top end of the telescopic rod is fixedly connected to a pressing plate. A sealing ring sleeve is arranged on the upper surface of the pressing plate. A limiting component is arranged inside the limiting block.

[0006] By adopting the above technical solution: The limiting plate is pulled upward by the threaded rod, and the sealing ring sleeve can be driven by the pressing plate to be sleeved on the acoustic logging tube body. Under the rebound of the first spring, the sealing ring sleeve can be firmly sleeved on the acoustic logging tube body, thereby significantly improving the sealing effect between the acoustic logging tube body and the pile bottom soil surface, effectively preventing slurry overflow and grouting hole blockage, and improving the grouting quality and the safety of the pile foundation.

[0007] Preferably, the limiting component includes a first limiting cylinder, a first clamping column is fixedly connected inside the first limiting cylinder, an anti-sliding block is fixedly connected to the outer wall of the first clamping column, a second spring is arranged inside the limiting block, one end of the second spring is fixed to the first clamping column, and the other end abuts against the inner wall of the first limiting cylinder.

[0008] By adopting the above technical solution: under the resilience of the second spring and the engagement of the anti-sliding block, the acoustic pipe body can be stably fixed in the limiting block, and the effect of adjusting the position of the acoustic pipe body relative to the pile body base as required is achieved.

[0009] Preferably, the outer wall of the first limiting cylinder is fixedly connected inside the limiting block, and the outer wall of the anti-sliding block is slidably connected to the outer wall of the acoustic pipe body.

[0010] By adopting the above technical solution: the limiting block can support and fix the first limiting cylinder, thereby increasing the stability of the anti-sliding block.

[0011] Preferably, one end of the first spring is fixedly connected to the upper surface of the limiting plate, the other end is fixedly connected to the lower surface of the abutting plate, and the inner wall of the sealing ring sleeve is slidably connected to the outer wall of the acoustic pipe body.

[0012] By adopting the above technical solution: the limiting plate and the abutting plate jointly play a role in limiting the first spring. The sealing ring sleeve is made of high wear-resistant rubber material, and its inner wall is provided with an annular sealing groove that is precisely matched with the outer wall of the acoustic pipe body, and is sealed by an interference fit method.

[0013] Preferably, a first connecting cylinder is slidably connected to the outer wall of the limiting block, a clamping plate is fixedly connected to the outer wall of the first connecting cylinder, and a support rod is fixedly connected to the outer wall of the clamping plate.

[0014] By adopting the above technical solution: under the supporting action of the limiting block and the first connecting cylinder, the effect of firmly clamping the clamping plate in the pile body is achieved.

[0015] Preferably, a support cylinder is fixedly connected to the outer wall of the support rod, a motor is fixedly connected inside the support cylinder, and a gear is fixedly arranged at the output end of the motor.

[0016] By adopting the above technical solution: the support cylinder plays a role in supporting and fixing the motor, and at the same time plays a role in limiting the support rod, providing a sliding track for the support rod.

[0017] Preferably, the tooth end of the gear is meshed with a rack, the outer wall of the rack is slidably connected to a fixed block, the outer wall of the fixed block is fixedly connected to the inner wall of the support cylinder, and the outer wall of the rack is fixedly connected to the outer wall of the support rod.

[0018] By adopting the above technical solution: the motor drives the gear to rotate, and then drives the rack to slide on the fixed block, wherein the fixed block supports the limiting rack, thereby ensuring the stability of the rack during the sliding process.

[0019] Preferably, a second limiting cylinder is fixedly connected to the interior of the limiting block, a limiting ring is fixedly connected to the interior of the second limiting cylinder, and a second clamping column is slidably connected to the inner wall of the limiting ring.

[0020] By adopting the above technical solution: the limiting ring is arranged at the end of the second limiting cylinder to limit the axial displacement range of the second clamping column and prevent it from escaping from the second limiting cylinder under the elastic force of the third spring.

[0021] Preferably, a third spring is provided inside the second limiting cylinder, one end of the third spring is fixed to the second clamping column, and the other end abuts against the inner wall of the second limiting cylinder.

[0022] By adopting the above technical solution, under the rebound action of the third spring, the second clamping column is firmly clamped in the clamping slot, thereby increasing the stability of the clamping.

[0023] Preferably, a clamping groove is provided inside the first connecting tube, and the outer wall of the second clamping column is slidably connected to the inner wall of the clamping groove.

[0024] By adopting the above technical solution, the clamping groove serves to limit the second clamping column, thereby ensuring the stability of the position of the second clamping column.

[0025] Working principle: When using the device, first place the whole device to the appropriate height of the pile body, then start the motor, drive the gear to rotate through the motor, and drive the rack to slide on the fixed block through the gear, and then pull the support rod to slide in the support tube, and push the card plate toward the inner wall of the pile body through the support rod, so that the card plate is stuck in the pile body. While moving, the card plate will pull the first connecting tube to slide on the limit block. At this time, the second card column will be squeezed by the first connecting tube to slide in the limit ring and then squeeze the third spring. Under the rebound, the second card column can be firmly stuck in the slot. With the support of the limit block and the first connecting tube, the card plate can be firmly stuck in the pile body, thereby achieving the effect of being suitable for piles of different sizes, and can be applied to pile foundation projects of various diameters, reducing customized procurement needs, reducing equipment inventory and management costs, thereby facilitating the formation of standardized construction processes and improving overall project efficiency. Then insert the acoustic logging tube body into the limit block. While the acoustic logging tube body slides in the limit block, it will squeeze the first clamping post through the anti-sliding block, causing it to slide in the first limit cylinder. At the same time, it will also squeeze the second spring to make it contract. Under the rebound of the second spring and the clamping of the anti-sliding block, the acoustic logging tube body can be stably fixed in the limit block, thus achieving the effect of adjusting the position of the acoustic logging tube body from the pile body base as required, ensuring the optimal grouting pressure, avoiding insufficient slurry diffusion or excessive loss, effectively avoiding excessive slurry perfusion caused by the fixed height, and saving material costs. After adjusting the acoustic logging tube body to the appropriate position, then turn the threaded rod to rotate in the connecting block. Through the threaded rod, the limit plate can be pulled upward. While the limit plate moves, it will drive the pressing plate to slide upward through the telescopic rod. Through the pressing plate, the sealing ring sleeve can be driven to sleev on the acoustic logging tube body. Continue to turn the threaded rod. Under the block of the acoustic logging tube body, the telescopic rod and the first spring will be compressed. Under the rebound of the first spring, the sealing ring sleeve can be firmly sleeved on the acoustic logging tube body, achieving a significant improvement in the sealing effect between the acoustic logging tube body and the pile bottom soil surface, effectively preventing slurry overflow and grouting hole blockage, ensuring that all the grouting volume is used for pile end reinforcement, improving the bearing capacity and durability of the pile foundation, and enhancing the grouting quality and pile foundation safety.

[0026] The present invention provides a sealing device for a pile foundation acoustic logging tube. It has the following beneficial effects: 1. In the present invention, by pulling the limit plate upward through the threaded rod, the sealing ring sleeve can be driven to sleev on the acoustic logging tube body through the pressing plate. Under the rebound of the first spring, the sealing ring sleeve can be firmly sleeved on the acoustic logging tube body, thus achieving a significant improvement in the sealing effect between the acoustic logging tube body and the pile bottom soil surface, effectively preventing slurry overflow and grouting hole blockage, and enhancing the grouting quality and pile foundation safety.

[0027] 2. In the present invention, by driving the gear-rack mechanism by a motor, the clamping plate is driven to adaptively match pile bodies of different diameters. With the cooperation of the rebound of the third spring, the second clamping post can be firmly stuck in the card slot, and then the clamping plate can be firmly stuck in the pile body, realizing rapid installation and fixation, thus achieving the effect of being applicable to pile bodies of different sizes, and then being applicable to pile foundation projects of various diameters, reducing the demand for customized procurement, lowering equipment inventory and management costs, and facilitating the formation of a standardized construction process, improving the overall project efficiency.

[0028] 3. In the present invention, by inserting the acoustic pipe body into the limit block, when the acoustic pipe body slides in the limit block, it will squeeze the first clamping post through the anti-sliding block, and then squeeze the second spring to make it contract. Under the resilience of the second spring and the engagement of the anti-sliding block, the acoustic pipe body can be stably fixed in the limit block, thereby achieving the effect of adjusting the position of the acoustic pipe body from the pile body base as required, effectively avoiding excessive grout perfusion caused by a fixed height, and saving material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a perspective view of a pile foundation acoustic pipe sealing device of the present invention; Figure 2 is a schematic diagram of the threaded rod of a pile foundation acoustic pipe sealing device of the present invention; Figure 3 is a schematic diagram of the clamping plate of a pile foundation acoustic pipe sealing device of the present invention; Figure 4 is a schematic diagram of the sealing ring sleeve of a pile foundation acoustic pipe sealing device of the present invention; Figure 5 is a schematic diagram of the acoustic pipe body of a pile foundation acoustic pipe sealing device of the present invention; Figure 6 is a schematic diagram of the anti-sliding block of a pile foundation acoustic pipe sealing device of the present invention; Figure 7 is a schematic diagram of the rack of a pile foundation acoustic pipe sealing device of the present invention; Figure 8 is a schematic diagram of the limit ring of a pile foundation acoustic pipe sealing device of the present invention.

[0030] Among them, 1. Limit block; 2. Acoustic pipe body; 3. Connecting block; 4. Threaded rod; 5. Limit plate; 6. Telescopic rod; 7. First spring; 8. Resisting plate; 9. Sealing ring sleeve; 10. First limiting cylinder; 11. First clamping post; 12. Anti-sliding block; 13. Second spring; 14. First connecting cylinder; 15. Clamping plate; 16. Support rod; 17. Support cylinder; 18. Motor; 19. Gear; 20. Rack; 21. Fixed block; 22. Card slot; 23. Second limiting cylinder; 24. Limit ring; 25. Second clamping post; 26. Third spring; 27. Limit component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to the attachedFigure 1 - Attachment Figure 5 In an embodiment of the present invention, a sealing device for a pile foundation sonic logging tube is provided, including a limiting block 1. A sonic logging tube body 2 is slidably connected inside the limiting block 1. A connecting block 3 is fixedly connected to the outer wall of the limiting block 1. A threaded rod 4 is threadedly connected inside the connecting block 3. The bottom end of the threaded rod 4 is rotatably connected to a limiting plate 5. A telescopic rod 6 is fixedly connected to the upper surface of the limiting plate 5. A first spring 7 is slidably connected to the outer wall of the telescopic rod 6. The top end of the telescopic rod 6 is fixedly connected to a pressing plate 8. A sealing ring sleeve 9 is arranged on the upper surface of the pressing plate 8. A limiting component 27 is arranged inside the limiting block 1.

[0033] Specifically, turn the threaded rod 4 to make it rotate in the connecting block 3. The connecting block 3 plays a role in supporting and limiting the threaded rod 4. The threaded rod 4 is used to pull the limiting plate 5 to move upward. The threaded rod 4 rotates in the limiting plate 5 but will not detach from the limiting plate 5. When the limiting plate 5 moves, it will drive the pressing plate 8 to slide upward through the telescopic rod 6. The telescopic rod 6 plays a role in connecting the limiting plate 5 and the pressing plate 8. The pressing plate 8 is used to drive the sealing ring sleeve 9 to be sleeved on the sonic logging tube body 2. The sealing ring sleeve 9 has a certain elasticity, so it can better fit with the sonic logging tube body 2. By continuing to turn the threaded rod 4, under the blocking action of the sonic logging tube body 2, the telescopic rod 6 and the first spring 7 will be compressed. Under the rebounding action of the first spring 7, the sealing ring sleeve 9 will be firmly sleeved on the sonic logging tube body 2. The sealing ring sleeve 9 is sleeved on the sonic logging tube body 2 when the sonic logging tube body 2 slides down, but does not fully fit with the sonic logging tube body 2.

[0034] Please refer to Attachment Figure 5 and Attachment Figure 6 As shown in the figure, the limiting component 27 includes a first limiting cylinder 10. A first clamping column 11 is fixedly connected inside the first limiting cylinder 10. An anti-slip block 12 is fixedly connected to the outer wall of the first clamping column 11. A second spring 13 is arranged inside the limiting block 1. One end of the second spring 13 is fixed to the first clamping column 11, and the other end abuts against the inner wall of the first limiting cylinder 10. The outer wall of the first limiting cylinder 10 is fixedly connected inside the limiting block 1. The outer wall of the anti-slip block 12 is slidably connected to the outer wall of the sonic logging tube body 2.

[0035] Specifically, by inserting the acoustic logging tube body 2 into the limit block 1, the limit block 1 plays a role in supporting and limiting the acoustic logging tube body 2. The hole in the limit block 1 provides a movement trajectory for the acoustic logging tube body 2, thereby ensuring the stability of the acoustic logging tube body 2 during sliding. While the acoustic logging tube body 2 slides in the limit block 1, the anti-sliding block 12 squeezes the first clamping column 11 to make it slide in the first limit cylinder 10. The inner diameter of the first limit cylinder 10 matches the first clamping column 11, which can not only ensure its smooth sliding but also effectively limit its displacement range to prevent the first clamping column 11 from accidentally sliding out. The sliding of the first clamping column 11 squeezes the second spring 13 to make it contract. Under the rebounding action of the second spring 13 and the clamping action of the anti-sliding block 12, the acoustic logging tube body 2 is stably fixed in the limit block 1. The anti-sliding block 12 is designed with a trapezoidal structure, and its inclined surface allows the acoustic logging tube body 2 to slide downward with less resistance. When moving in the reverse direction, the upper trapezoidal surface forms a mechanical interference with the mating part, and a greater external force needs to be applied to achieve upward sliding, thus realizing the controllable one-way sliding function.

[0036] Please refer to the attached Figure 4 , one end of the first spring 7 is fixedly connected to the upper surface of the limit plate 5, and the other end is fixedly connected to the lower surface of the abutting plate 8. The inner wall of the sealing ring sleeve 9 is slidably connected to the outer wall of the acoustic logging tube body 2.

[0037] Specifically, the limit plate 5 and the abutting plate 8 jointly play a role in limiting the first spring 7. The sealing ring sleeve 9 is made of a highly wear-resistant rubber material, and its inner wall is provided with an annular sealing groove that precisely matches the outer wall of the acoustic logging tube body 2 and is sealed by an interference fit method.

[0038] Please refer to the attached Figure 1 、attached Figure 3 、attached Figure 7 and attached Figure 8, a first connecting cylinder 14 is slidably connected to the outer wall of the limit block 1. A clamping plate 15 is fixedly connected to the outer wall of the first connecting cylinder 14, and a support rod 16 is fixedly connected to the outer wall of the clamping plate 15; a support cylinder 17 is fixedly connected to the outer wall of the support rod 16. A motor 18 is fixedly connected to the inside of the support cylinder 17, and a gear 19 is fixedly arranged at the output end of the motor 18; the tooth end of the gear 19 is meshed with a rack 20. The outer wall of the rack 20 is slidably connected to a fixed block 21, and the outer wall of the fixed block 21 is fixedly connected to the inner wall of the support cylinder 17. The outer wall of the rack 20 is fixedly connected to the outer wall of the support rod 16; a second limiting cylinder 23 is fixedly connected to the inside of the limit block 1. A limiting ring 24 is fixedly connected to the inside of the second limiting cylinder 23, and a second clamping column 25 is slidably connected to the inner wall of the limiting ring 24; a third spring 26 is arranged inside the second limiting cylinder 23. One end of the third spring 26 is fixed to the second clamping column 25, and the other end abuts against the inner wall of the second limiting cylinder 23; a clamping groove 22 is formed inside the first connecting cylinder 14, and the outer wall of the second clamping column 25 is slidably connected to the inner wall of the clamping groove 22.

[0039] Specifically, the support cylinder 17 plays a role in supporting and fixing the motor 18, and at the same time plays a role in limiting the support rod 16, providing a sliding track for the support rod 16 to make it more stable during the sliding process. The motor 18 drives the gear 19 to rotate, and the gear 19 drives the rack 20 to slide on the fixed block 21. The fixed block 21 supports and limits the rack 20 to ensure the stability of the rack 20 during the sliding process, and then pulls the support rod 16 to slide in the support cylinder 17. The support rod 16 pushes the clamping plate 15 to move towards the inner wall of the pile body, and then makes the clamping plate 15 be stuck in the pile body. The wedge-shaped inclined surface of the clamping plate 15 generates a radial component force under the thrust of the support rod 16, so that the contact pressure between the clamping plate 15 and the inner wall of the pile body increases with the increase of the external force, forming a self-reinforcing locking effect. When the clamping plate 15 moves, it pulls the first connecting cylinder 14 to slide on the limit block 1. The limit block 1 supports and limits the first connecting cylinder 14 to ensure the stability of the first connecting cylinder 14 during the sliding process. At this time, the first connecting cylinder 14 squeezes the second clamping column 25 to slide in the limiting ring 24, and then squeezes the third spring 26. The limiting ring 24 is arranged at the end of the second limiting cylinder 23 to limit the axial displacement range of the second clamping column 25 to prevent it from slipping out of the second limiting cylinder 23 under the elastic force of the third spring 26. Under the rebound effect of the third spring 26, the second clamping column 25 is driven to firmly be stuck in the clamping groove 22. Under the support of the limit block 1 and the first connecting cylinder 14, the clamping plate 15 is firmly stuck in the pile body.

[0040] A kind of pile foundation acoustic pipe sealing device in this embodiment, when in use, first place the whole at a suitable height of the pile body, then start the motor 18, drive the gear 19 to rotate through the motor 18, drive the rack 20 to slide on the fixed block 21 through the gear 19, and then pull the support rod 16 to slide in the support cylinder 17. Push the clamping plate 15 to move towards the inner wall of the pile body through the support rod 16, so that the clamping plate 15 is stuck in the pile body. While the clamping plate 15 is moving, it will pull the first connecting cylinder 14 to also slide on the limit block 1. At this time, the second clamping column 25 will be squeezed to slide in the limit ring 24 through the first connecting cylinder 14, and then squeeze the third spring 26. Under the rebound of the third spring 26, the second clamping column 25 can be firmly stuck in the card slot 22. Supported by the limit block 1 and the first connecting cylinder 14, the clamping plate 15 can be firmly stuck in the pile body; Then insert the acoustic pipe body 2 into the limit block 1. While the acoustic pipe body 2 slides in the limit block 1, it will squeeze the first clamping column 11 through the anti-sliding block 12 to make it slide in the first limit cylinder 10, and at the same time squeeze the second spring 13 to make it contract. Under the rebound of the second spring 13 and the clamping of the anti-sliding block 12 at the same time, the acoustic pipe body 2 can be stably fixed in the limit block 1; After adjusting the acoustic pipe body 2 to a suitable position, then turn the threaded rod 4 to rotate in the connecting block 3. The limit plate 5 can be pulled to move upward through the threaded rod 4. While the limit plate 5 is moving, it will drive the pressing plate 8 to slide upward through the telescopic rod 6. The sealing ring sleeve 9 can be driven by the pressing plate 8 to be sleeved on the acoustic pipe body 2. Continue to turn the threaded rod 4. Under the block of the acoustic pipe body 2, the telescopic rod 6 and the first spring 7 will be compressed. Under the rebound of the first spring 7, the sealing ring sleeve 9 can be firmly sleeved on the acoustic pipe body 2; This device not only achieves the effect of being applicable to pile bodies of different sizes, and can thus be applicable to pile foundation projects of various diameters, reduces the need for customized procurement, reduces equipment inventory and management costs, so as to facilitate the formation of a standardized construction process and improve the overall project efficiency. It also achieves the effect of adjusting the position of the acoustic pipe body 2 from the pile body base as needed, and can thus ensure the optimal grouting pressure, avoid insufficient or excessive loss of slurry diffusion, and can effectively avoid excessive grout perfusion caused by a fixed height, saving material costs. At the same time, it also achieves the effect of significantly improving the sealing effect between the acoustic pipe body 2 and the pile bottom soil surface, effectively preventing slurry overflow and grouting hole blockage, ensuring that all the grouting volume is used for pile end reinforcement, improving the bearing capacity and durability of the pile foundation, and enhancing the grouting quality and pile foundation safety.

[0041] 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 sealing device for a pile foundation sonic logging tube, comprising a limiting block (1), characterized in that, The inside of the limiting block (1) is slidably connected with a sound measuring tube body (2). The outer wall of the limiting block (1) is fixedly connected with a connecting block (3). The inside of the connecting block (3) is threadedly connected with a threaded rod (4). The bottom end of the threaded rod (4) is rotatably connected with a limiting plate (5). The upper surface of the limiting plate (5) is fixedly connected with a telescopic rod (6). The outer wall of the telescopic rod (6) is slidably connected with a first spring (7). The top end of the telescopic rod (6) is fixedly connected with a pressing plate (8). The upper surface of the pressing plate (8) is provided with a sealing ring sleeve (9). The inside of the limiting block (1) is provided with a limiting component (27).

2. The pile foundation acoustic logging tube sealing device according to claim 1, wherein, The limiting component (27) includes a first limiting cylinder (10). The inside of the first limiting cylinder (10) is fixedly connected with a first clamping column (11). The outer wall of the first clamping column (11) is fixedly connected with an anti-slip block (12). The inside of the limiting block (1) is provided with a second spring (13). One end of the second spring (13) is fixed to the first clamping column (11), and the other end abuts against the inner wall of the first limiting cylinder (10).

3. The pile foundation sonic logging pipe sealing device according to claim 2, wherein, The outer wall of the first limiting cylinder (10) is fixedly connected inside the limiting block (1). The outer wall of the anti-slip block (12) is slidably connected to the outer wall of the sound measuring tube body (2).

4. A pile foundation acoustic logging tube sealing device according to claim 1, characterized in that, One end of the first spring (7) is fixedly connected to the upper surface of the limiting plate (5), and the other end is fixedly connected to the lower surface of the pressing plate (8). The inner wall of the sealing ring sleeve (9) is slidably connected to the outer wall of the sound measuring tube body (2).

5. A pile foundation acoustic logging tube sealing device according to claim 1, characterized in that, The outer wall of the limiting block (1) is slidably connected with a first connecting cylinder (14). The outer wall of the first connecting cylinder (14) is fixedly connected with a clamping plate (15). The outer wall of the clamping plate (15) is fixedly connected with a support rod (16).

6. The pile foundation sonic logging pipe sealing device according to claim 5, characterized in that, The outer wall of the support rod (16) is fixedly connected with a support cylinder (17). The inside of the support cylinder (17) is fixedly connected with a motor (18). The output end of the motor (18) is fixedly provided with a gear (19).

7. A pile foundation acoustic logging tube sealing device according to claim 6, characterized in that, The tooth end of the gear (19) is meshed with a rack (20). The outer wall of the rack (20) is slidably connected with a fixed block (21). The outer wall of the fixed block (21) is fixedly connected to the inner wall of the support cylinder (17). The outer wall of the rack (20) is fixedly connected to the outer wall of the support rod (16).

8. A pile foundation acoustic logging tube sealing device according to claim 5, characterized in that, The inside of the limiting block (1) is fixedly connected with a second limiting cylinder (23). The inside of the second limiting cylinder (23) is fixedly connected with a limiting ring (24). The inner wall of the limiting ring (24) is slidably connected with a second clamping column (25).

9. The pile foundation acoustic logging tube sealing device according to claim 8, characterized in that, The inside of the second limiting cylinder (23) is provided with a third spring (26). One end of the third spring (26) is fixed to the second clamping column (25), and the other end abuts against the inner wall of the second limiting cylinder (23).

10. A pile foundation sonic logging tube sealing device according to claim 9, characterized in that, A card slot (22) is formed inside the first connecting cylinder (14). The outer wall of the second clamping column (25) is slidably connected to the inner wall of the card slot (22).

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