A quality detection device for reinforcing the trench wall of an anti-seepage MJS underground continuous wall

Abstract

The application relates to the technical field of underground continuous wall detection, and discloses an anti-seepage MJS underground continuous wall slot wall reinforcing quality detection device, which comprises a mounting assembly, a first driving assembly fixedly arranged on the mounting assembly, clamping assemblies symmetrically arranged on the two sides of the first driving assembly, a second driving assembly fixedly arranged at the bottom of the mounting assembly, and a detection assembly movably arranged on the second driving assembly. Through the cooperation between the detection assembly and the second driving assembly, the composite movement of the detection assembly is realized, and the comprehensiveness and accuracy of slot wall quality detection are improved.

Description

Technical Field

[0001] This invention relates to the field of diaphragm wall testing technology, specifically to a seepage-resistant MJS diaphragm wall trench reinforcement quality testing device. Background Technology

[0002] With the rapid development of underground engineering construction, the anti-seepage MJS diaphragm wall, with its excellent anti-seepage performance, strong load-bearing capacity, and high construction efficiency, has been widely used in subway, tunnel, and high-rise building foundation pit support projects. As the foundation for wall formation, the quality of the diaphragm wall trench directly determines the overall anti-seepage, stability, and load-bearing capacity of the wall. If the trench wall has quality defects such as cracks or hollow areas, it can easily lead to wall leakage, collapse, and other safety hazards, seriously affecting the construction safety and service life of underground projects.

[0003] Currently, the quality inspection of existing diaphragm wall trench reinforcement relies mainly on manual tapping or simple testing devices, which have many shortcomings and technical limitations. Manual tapping is not only labor-intensive and inefficient, but the results are also greatly affected by subjective factors such as the inspector's experience and the control of tapping force, making it difficult to guarantee accuracy. Simple testing devices often have unidirectional moving components, only capable of tapping a single depth or area of ​​the trench wall, failing to achieve comprehensive multi-directional and full-area inspection. This easily leads to missed defects such as cracks, making it difficult to effectively solve the technical problem of incomplete crack detection coverage in diaphragm wall trenches and failing to provide reliable inspection support for engineering construction safety. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a seepage-resistant MJS underground continuous wall trench reinforcement quality detection device, which solves the problem of incomplete coverage of crack detection in underground continuous wall trenches.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a quality testing device for the reinforcement of the MJS underground continuous wall trench with impermeability, comprising an installation component, a first driving component fixedly disposed on the installation component, clamping components symmetrically disposed on both sides of the first driving component, a second driving component fixedly disposed at the bottom of the installation component, and a testing component movably disposed on the second driving component.

[0006] According to one embodiment of the present invention, the mounting assembly includes a mounting plate, a handle fixedly disposed on the top of the mounting plate, and limiting posts respectively fixedly disposed at both ends of the bottom of the mounting plate.

[0007] According to one embodiment of the present invention, the second drive assembly includes a second drive motor fixedly disposed on the bottom of the mounting plate, a second threaded shaft fixedly disposed on the output end of the second drive motor, a movable seat cooperating with the second threaded shaft, limiting holes respectively opened at both ends of the movable seat, limiting rails respectively fixedly disposed at both ends of the movable seat, and a circular rail fixedly disposed on the bottom of the movable seat.

[0008] According to one embodiment of the present invention, the detection assembly includes a rotating seat, a circular groove fixedly disposed on the top of the rotating seat and cooperating with the circular rail, an incomplete gear fixedly disposed on the bottom of the rotating seat, screw holes respectively penetrating the rotating seat and the incomplete gear, an annular block that slides and cooperates with the limiting rail, two sets of teeth respectively symmetrically disposed in the annular block, and detection elements respectively symmetrically disposed at both ends of the annular block.

[0009] According to one embodiment of the present invention, the limiting post is inserted into the limiting hole; the teeth mesh with the incomplete gear; and the annular block reciprocates linearly within the limiting rail.

[0010] According to one embodiment of the present invention, the detection element includes a connecting shaft fixedly disposed on the outer wall of the annular block, a connecting sleeve slidably engaged with the connecting shaft, and a striking block fixedly disposed on the connecting sleeve; both the connecting shaft and the connecting sleeve are provided with a plurality of through holes arranged in an array, and the connecting shaft and the connecting sleeve are mutually limited by means of pin insertion into the through holes.

[0011] According to one embodiment of the present invention, the mounting assembly further includes a connecting seat disposed on the top of the mounting plate and sliding grooves symmetrically formed on both sides of the mounting plate.

[0012] According to one embodiment of the present invention, the first drive assembly includes a first drive motor fixedly disposed on the top of the mounting plate, a first threaded shaft fixedly connected to the output end of the first drive motor, and two sets of threads respectively symmetrically disposed on the first threaded shaft with opposite helical directions.

[0013] According to one embodiment of the present invention, the end of the first threaded shaft away from the first drive motor is rotatably connected to the side wall of the mounting plate, and the first threaded shaft is rotatably connected to the connecting seat.

[0014] According to one embodiment of the present invention, the clamping assembly includes a slider that cooperates with the first threaded shaft and a U-shaped frame fixedly disposed at the bottom of the slider; the slider is slidably engaged with the groove.

[0015] (III) Beneficial Effects Compared with the prior art, the present invention provides a quality testing device for the reinforcement of the MJS underground continuous wall trench, which has the following advantages: 1. This anti-seepage MJS underground continuous wall trench reinforcement quality inspection device, through the cooperative structural design of the inspection component and the second drive component, achieves composite movement of the inspection component, improving the comprehensiveness and accuracy of the quality inspection of cracks in the underground continuous wall trench. The second drive component, through the cooperation of the drive motor, threaded shaft and limiting structure, drives the inspection component to move linearly up and down, supporting the inspection of trench walls at different depths; it also allows the inspection component to rotate itself when moving up and down through the sliding of the circular rail and the spiral cooperation of the threaded shaft and the rotating seat, and the intermittent meshing of the incomplete gear and the teeth of the ring block, driving the inspection piece to move linearly back and forth, so that the striking block strikes the trench wall in multiple directions and intermittently, covering the inspection area and avoiding missed detections.

[0016] 2. This anti-seepage MJS diaphragm wall trench reinforcement quality inspection device, through the structural design of the clamping assembly and the first drive assembly, achieves rapid and stable clamping and fixing of the device on the diaphragm wall trench, laying a solid foundation for the smooth progress of inspection operations. The first drive assembly drives a threaded shaft with reverse helical threads to rotate through a single drive motor. Combined with the sliding limit of the slider of the clamping assembly and the sliding groove of the mounting plate, it can synchronously drive two sets of clamping assemblies to move in opposite directions or relative linearly. This eliminates the need for separate control of each set of clamping assemblies, simplifying the operation process, enabling rapid clamping and disassembly of the device, and improving the efficiency of inspection operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a seepage-resistant MJS underground continuous wall trench wall reinforcement quality testing device proposed in this invention; Figure 2 This is another structural schematic diagram of the anti-seepage MJS underground continuous wall trench wall reinforcement quality detection device proposed in this invention; Figure 3 This is a partial structural schematic diagram of a seepage-resistant MJS underground continuous wall trench wall reinforcement quality testing device proposed in this invention; Figure 4 This is a schematic diagram of the second drive component and the detection component of a seepage-resistant MJS underground continuous wall trench reinforcement quality detection device proposed in this invention; Figure 5 This is a partial structural schematic diagram of a seepage-resistant MJS underground continuous wall trench wall reinforcement quality testing device proposed in this invention; Figure 6 This is a schematic diagram showing the partial structural separation of the detection components of a quality detection device for the reinforcement of the MJS underground continuous wall trench, which is an anti-seepage type, proposed in this invention.

[0018] In the diagram: 1. Mounting assembly; 2. First drive assembly; 3. Clamping assembly; 4. Second drive assembly; 5. Detection assembly; 11. Mounting plate; 12. Handle; 13. Limiting post; 14. Connecting seat; 15. Slide groove; 21. First drive motor; 22. First threaded shaft; 23. Thread; 31. Slider; 32. U-shaped frame; 41. Second drive motor; 42. Second threaded shaft; 43. Moving seat; 44. Limiting hole; 45. Limiting rail; 46. Circular rail; 51. Rotating seat; 52. Circular groove; 53. Incomplete gear; 54. Screw hole; 55. Annular block; 56. Tooth; 57. Detection component; 571. Connecting shaft; 572. Connecting sleeve; 573. Striking block; 574. Through hole. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1, please refer to Figure 1 - Figure 6 This is the first embodiment of the present invention. This embodiment provides a quality testing device for the reinforcement of the MJS underground continuous wall trench, which is impermeable. Specifically, it includes: an installation component 1, a first driving component 2 fixedly disposed on the installation component 1, clamping components 3 symmetrically disposed on both sides of the first driving component 2, a second driving component 4 fixedly disposed at the bottom of the installation component 1, and a testing component 5 movably disposed on the second driving component 4.

[0021] It should be noted that the mounting assembly 1 provides support and a platform for the testing device, ensuring that the device is horizontally and stably erected on top of the underground continuous wall trench, laying the foundation for the testing operation. The first drive assembly 2 drives the clamping assembly 3 to achieve rapid and stable clamping of the device on the trench wall, preventing shaking and displacement during testing. The second drive assembly 4 drives the detection assembly 5 to move up and down, causing the detection assembly 5 to undergo compound motion, providing a trajectory for the tapping test. The detection assembly 5 detects the quality of the trench wall by tapping it and generating an echo, thus determining the quality defects of the trench wall.

[0022] Furthermore, the mounting assembly 1 includes a mounting plate 11, a handle 12 fixedly disposed on the top of the mounting plate 11, and limiting posts 13 fixedly disposed at both ends of the bottom of the mounting plate 11.

[0023] Furthermore, the mounting assembly 1 also includes a connecting seat 14 disposed on the top of the mounting plate 11 and sliding grooves 15 symmetrically opened on both sides of the mounting plate 11.

[0024] Furthermore, the first drive assembly 2 includes a first drive motor 21 fixedly mounted on the top of the mounting plate 11, a first threaded shaft 22 fixedly connected to the output end of the first drive motor 21, and two sets of threads 23 respectively symmetrically arranged on the first threaded shaft 22 with opposite helical directions.

[0025] Furthermore, the end of the first threaded shaft 22 away from the first drive motor 21 is rotatably connected to the side wall of the mounting plate 11, and the first threaded shaft 22 is rotatably connected to the connecting seat 14.

[0026] Furthermore, the clamping assembly 3 includes a slider 31 that cooperates with the first thread 23 shaft 22 and a U-shaped frame 32 fixedly disposed at the bottom of the slider 31; the slider 31 is slidably engaged with the slide groove 15.

[0027] Installation process: First, the mounting plate 11 of the mounting assembly 1 is horizontally placed on top of the two sets of underground continuous wall trenches to be tested, completing the initial positioning of the device. The first drive motor 21 of the first drive assembly 2 is started. The output end of the first drive motor 21 drives the first thread 23 shaft 22 to rotate. Because the first thread 23 shaft 22 has two sets of threads 23 with opposite helical directions, and the threads 23 cooperate with the slider 31 of the clamping assembly 3, and the slider 31 slides and is limited by the sliding grooves 15 on both sides of the mounting plate 11, when the first thread 23 shaft 22 rotates, the two sets of sliders 31 move in opposite directions or relative straight lines along the sliding grooves 15. The sliders 31 synchronously drive the U-shaped frame 32 at the bottom to move until the side walls of the two sets of U-shaped frames 32 are in close contact with the side walls of the two sets of underground continuous wall trenches, completing the clamping and fixing of the device on the trench wall, providing a stable installation foundation for subsequent testing operations.

[0028] Furthermore, the second drive assembly 4 includes a second drive motor 41 fixedly disposed at the bottom of the mounting plate 11, a second threaded shaft 23 fixedly disposed at the output end of the second drive motor 41, a movable seat 43 that cooperates with the second threaded shaft 23, limiting holes 44 respectively opened at both ends of the movable seat 43, limiting rails 45 respectively fixedly disposed at both ends of the movable seat 43, and a circular rail 46 fixedly disposed at the bottom of the movable seat 43.

[0029] Furthermore, the detection component 5 includes a rotating base 51, a circular groove 52 fixedly disposed on the top of the rotating base 51 and cooperating with the circular rail 46, an incomplete gear 53 fixedly disposed on the bottom of the rotating base 51, screw holes 54 respectively penetrating the rotating base 51 and the incomplete gear 53, an annular block 55 slidingly cooperating with the limiting rail 45, two sets of teeth 56 respectively symmetrically disposed in the annular block 55, and detection elements 57 respectively symmetrically disposed at both ends of the annular block 55.

[0030] Furthermore, the limiting post 13 is inserted into the limiting hole 44; the tooth 56 meshes with the incomplete gear 53; and the annular block 55 reciprocates linearly within the limiting rail 45.

[0031] Furthermore, the detection element 57 includes a connecting shaft 571 fixedly disposed on the outer wall of the annular block 55, a connecting sleeve 572 slidably engaged with the connecting shaft 571, and a striking block 573 fixedly disposed on the connecting sleeve 572; both the connecting shaft 571 and the connecting sleeve 572 are provided with a plurality of through holes 574 arranged in an array, and the connecting shaft 571 and the connecting sleeve 572 are mutually limited by means of pin insertion into the through holes 574.

[0032] Testing process: After the device completes clamping and fixing, the second drive motor 41 of the second drive assembly 4 is started. The output end of the second drive motor 41 drives the second thread 23 shaft to rotate. Since the movable seat 43 is engaged with the second thread 23 shaft through the internal thread 23, and the limiting holes 44 at both ends of the movable seat 43 are inserted into the limiting post 13 at the bottom of the mounting plate 11 for limiting, the limiting post 13 restricts the rotational freedom of the movable seat 43. Therefore, when the second thread 23 shaft rotates, the movable seat 43 moves steadily up and down in a straight line along the limiting post 13. When the movable seat 43 moves up and down, its bottom circular rail 46 slides into the top circular groove 52 of the rotating seat 51 of the detection component 5. At the same time, the rotating seat 51 and the bottom incomplete gear 53 are both engaged with the second thread 23 shaft through the internal screw hole 54. Under the helical driving force of the second thread 23 shaft, the rotating seat 51, without additional rotation limit, realizes a compound action of moving up and down linearly while also performing its own rotational motion. The sliding engagement between the circular rail 46 and the circular groove 52 not only ensures the synchronous up and down movement of the rotating seat 51 and the movable seat 43, but also provides a smooth motion guide for the rotation of the rotating seat 51, avoiding jamming.

[0033] When the rotating seat 51 synchronously completes its up-and-down movement and rotation, the incomplete gear 53 at its bottom rotates along with it. Because the incomplete gear 53 intermittently meshes with the two sets of teeth 56 symmetrically arranged inside the annular block 55, and the annular block 55 slides with the limiting rails 45 at both ends of the moving seat 43, the limiting rails 45 restrict the rotational freedom of the annular block 55, leaving only linear movement space. Therefore, when the incomplete gear 53 rotates, it drives the annular block 55 to make continuous left-right reciprocating linear motion along the limiting rails 45 through alternating meshing with the two sets of teeth 56. The annular block 55 synchronously drives the detection elements 57 at both ends to make left-right reciprocating motion. The striking block 573 of the detection element 57 moves with the annular block 55, realizing intermittent left-right alternating striking of the sidewall of the underground continuous wall trench. Through the striking action at different positions, vibration echoes are excited inside the trench wall. If there are reinforcement quality problems such as cracks or hollows inside the trench wall, the echoes produced by the striking will show obvious changes in frequency and loudness.

[0034] It should be noted that the U-shaped frame 32 is designed to define a precise detection range for the inspection operation, avoiding detection deviations. At the same time, the U-shaped frame 32 is equipped with a detection sensor, and the entire tapping detection action is completed within the clamping range of the U-shaped frame 32. The detection sensor can accurately capture various echo signals generated after tapping the trench wall. By analyzing and identifying the echo signals, it is possible to determine whether there are quality defects such as cracks or hollow areas inside the underground continuous wall trench wall, thus achieving effective detection of the trench wall reinforcement quality.

[0035] It should also be noted that the connecting shaft 571 of the detection component 57 is slidably engaged with the connecting sleeve 572, and the two are limited by inserting pins into the through holes 574 at different positions. The extension length of the striking block 573 can be adjusted according to the actual detection needs to adapt to the detection scenarios of groove walls with different thicknesses and detection depths, thereby improving the versatility of the device.

[0036] In summary, this anti-seepage MJS diaphragm wall trench reinforcement quality inspection device, through the cooperative structural design of the inspection component and the second drive component, achieves composite movement of the inspection component, improving the comprehensiveness and accuracy of trench wall quality inspection. The second drive component, through the cooperation of a drive motor, threaded shaft, and limiting structure, drives the inspection component to move linearly up and down, supporting the inspection of trench walls at different depths. Furthermore, through the sliding of a circular rail and a circular groove, and the helical cooperation of the threaded shaft and the rotating seat, the inspection component rotates itself during its vertical movement. This, combined with the intermittent meshing of the incomplete gear and the teeth of the annular block, drives the inspection piece to reciprocate linearly left and right, allowing the striking block to strike the trench wall in multiple directions and intermittently, covering the inspection area and avoiding missed detections. The structural design of the clamping component and the first drive component enables rapid and stable clamping and fixation of the device on the diaphragm wall trench, laying a solid foundation for the smooth conduct of inspection operations. The first drive assembly drives a threaded shaft with a reverse helical thread to rotate via a single drive motor. In conjunction with the sliding limit of the slider of the clamping assembly and the sliding groove of the mounting plate, it can synchronously drive two sets of clamping assemblies to move in opposite directions or relative linearly. There is no need to control each set of clamping assemblies separately, which simplifies the operation process, enables the device to clamp and disassemble quickly, and improves the efficiency of the inspection operation.

[0037] 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 limitations, 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.

Claims

1. A quality testing device for the reinforcement of MJS underground continuous wall trench walls with impermeability, characterized in that: It includes an installation component (1), a first drive component (2) fixedly disposed on the installation component (1), clamping components (3) symmetrically disposed on both sides of the first drive component (2), a second drive component (4) fixedly disposed on the bottom of the installation component (1), and a detection component (5) movably disposed on the second drive component (4).

2. The anti-seepage MJS underground continuous wall trench wall reinforcement quality testing device according to claim 1, characterized in that: The mounting assembly (1) includes a mounting plate (11), a handle (12) fixedly disposed on the top of the mounting plate (11), and limiting posts (13) fixedly disposed at both ends of the bottom of the mounting plate (11).

3. The anti-seepage MJS underground continuous wall trench wall reinforcement quality testing device according to claim 2, characterized in that: The second drive assembly (4) includes a second drive motor (41) fixedly disposed at the bottom of the mounting plate (11), a second threaded shaft (42) fixedly disposed at the output end of the second drive motor (41), a movable seat (43) cooperating with the second threaded shaft (42), limiting holes (44) respectively opened at both ends of the movable seat (43), limiting rails (45) respectively fixedly disposed at both ends of the movable seat (43), and a circular rail (46) fixedly disposed at the bottom of the movable seat (43).

4. The anti-seepage MJS underground continuous wall trench wall reinforcement quality testing device according to claim 3, characterized in that: The detection component (5) includes a rotating seat (51), a circular groove (52) fixedly disposed on the top of the rotating seat (51) and cooperating with the circular rail (46), an incomplete gear (53) fixedly disposed on the bottom of the rotating seat (51), a screw hole (54) respectively penetrating the rotating seat (51) and the incomplete gear (53), an annular block (55) slidingly cooperating with the limiting rail, two sets of teeth (56) respectively symmetrically disposed in the annular block (55), and detection elements (57) respectively symmetrically disposed at both ends of the annular block (55).

5. The anti-seepage MJS underground continuous wall trench wall reinforcement quality testing device according to claim 4, characterized in that: The limiting post (13) is inserted into the limiting hole (44); the tooth (56) meshes with the incomplete gear (53); the annular block (55) reciprocates linearly within the limiting rail (45).

6. The anti-seepage MJS underground continuous wall trench wall reinforcement quality testing device according to claim 5, characterized in that: The detection component (57) includes a connecting shaft (571) fixedly disposed on the outer wall of the annular block (55), a connecting sleeve (572) slidably engaged with the connecting shaft (571), and a striking block (573) fixedly disposed on the connecting sleeve (572); both the connecting shaft (571) and the connecting sleeve (572) are provided with a plurality of through holes (574) arranged in an array, and the connecting shaft (571) and the connecting sleeve (572) are mutually limited by means of pin insertion into the through holes (574).

7. The anti-seepage MJS underground continuous wall trench wall reinforcement quality testing device according to claim 6, characterized in that: The mounting assembly (1) further includes a connecting seat (14) disposed on the top of the mounting plate (11) and a sliding groove (15) symmetrically opened on both sides of the mounting plate (11).

8. The anti-seepage type MJS underground continuous wall trench wall reinforcement quality testing device according to claim 7, characterized in that: The first drive assembly (2) includes a first drive motor (21) fixedly mounted on the top of the mounting plate (11), a first threaded shaft (22) fixedly connected to the output end of the first drive motor (21), and two sets of threads (23) symmetrically arranged on the first threaded shaft (22) with opposite helical directions.

9. The anti-seepage MJS underground continuous wall trench wall reinforcement quality testing device according to claim 8, characterized in that: The end of the first threaded shaft (22) away from the first drive motor (21) is rotatably connected to the side wall of the mounting plate (11), and the first threaded shaft (22) is rotatably connected to the connecting seat (14).

10. The anti-seepage MJS underground continuous wall trench wall reinforcement quality testing device according to claim 9, characterized in that: The clamping assembly (3) includes a slider (31) that cooperates with the first threaded shaft (22) and a U-shaped frame (32) fixedly disposed at the bottom of the slider (31); the slider (31) is slidably engaged with the slide groove (15).

Images