A sleeve grouting defect detection device

Abstract

The application belongs to the technical field of defect detection, and discloses a sleeve grouting defect detection device, which comprises a sleeve, an insertion guide pipe arranged in the sleeve, a detection probe connected with the end of the insertion guide pipe, a laser emitter arranged on the detection probe, a controller connected with the other end of the insertion guide pipe, a transmission wire connected with the controller, and an auxiliary probe connected with the end of the transmission wire, an annular block is arranged on the side wall of the insertion guide pipe in a sliding mode, a placing block is fixedly connected to the side wall of the annular block, and a protection assembly for protecting the detection probe is arranged on the placing block. The application has the effect of reducing the difficulty of detecting the sleeve grouting defects for workers.

Description

Technical Field

[0001] This utility model relates to the field of defect detection technology, and in particular to a defect detection device for sleeve grouting. Background Technology

[0002] Prefabricated construction is a common building form, and grouting sleeve connections are one of the main connection methods in prefabricated concrete structures. In critical load-bearing areas, grouting sleeve connections or grout-anchored lap joints often have joints on the same cross-section. The grouting quality is a crucial indicator for ensuring the load-bearing capacity of joints and the overall structural safety of the building, and is a vital guarantee that the overall performance of prefabricated monolithic concrete structures is equivalent to cast-in-place structures. Due to various influencing factors during sleeve grouting construction, the risk of grouting quality defects is relatively high. Against this backdrop, the adoption of convenient, accurate, efficient, and cost-effective sleeve grouting defect detection devices is of great significance for ensuring the safety of prefabricated structures.

[0003] Chinese utility model patent CN210720177U discloses a laser-scaled endoscopic sleeve grouting defect detection device, including an endoscope, two sets of laser emitters, an insertion tube, and a controller. The endoscope is movably mounted on the end of the insertion tube, and the endoscope lens can rotate around its center line. The endoscope is connected to the controller via an optical fiber core conductor, and the controller is equipped with a display screen. The two sets of laser emitters are mounted side by side at the front end of the endoscope, and both can rotate with the endoscope. The laser emitters are connected to the controller via transmission wires. The optical fiber core conductor and the transmission wire are both located inside the insertion tube, and one end of the insertion tube, carrying the endoscope and laser emitters, extends into the detection hole of the grouting sleeve. The detection device is also equipped with a tilt angle testing system located outside the detection hole. The tilt angle testing system includes an auxiliary probe that rotates synchronously with the endoscope probe, and a dynamic tilt angle sensor is fixed at the front end of the auxiliary probe. The beneficial effects of this utility model are: convenient operation, intuitive and accurate detection results, no damage to the object being tested, and high economic and social benefits. Regarding the aforementioned technologies, the inventors believe the following drawbacks exist: The device observes the grouting inside the sleeve using a probe connected to the insertion conduit. During use, the operator must insert the probe into the sleeve to observe the grouting status via the display screen on the controller. In practical use, because the probe is connected to the insertion conduit, the operator must keep the controller stable. If the operator fails to hold the controller firmly and it falls, the probe is easily damaged due to dragging. Therefore, the detection device places high demands on the operator's skills. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a sleeve grouting defect detection device.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a sleeve grouting defect detection device, comprising a sleeve, an insertion conduit disposed within the sleeve, a detection probe connected to the end of the insertion conduit, a laser emitter disposed on the detection probe, a controller connected to the other end of the insertion conduit, a transmission wire connected to the controller, and an auxiliary probe connected to the end of the transmission wire. An annular block is slidably disposed on the side wall of the insertion conduit, and a mounting block is fixedly connected to the side wall of the annular block. A protective component for protecting the detection probe is disposed on the mounting block.

[0006] By adopting the above technical solution, when workers need to inspect the grouting effect of the sleeve, they must wait for the grout inside the sleeve to solidify before drilling an inspection hole along the axial direction of the grout outlet. Alternatively, an inspection hole can be pre-drilled using a plastic conduit during grouting. Subsequently, workers must set the inspection probe's position within the inspection hole and determine the position and angle of the endoscopic camera to capture images based on the defects inside the sleeve, ensuring that the captured images clearly show the defect boundaries and laser scale in both horizontal and vertical directions. Further, workers must slowly insert the endoscope along the inspection hole using a connecting conduit, simultaneously capturing images and transmitting the image information to the controller. The controller's display screen allows for real-time observation of the grouting sleeve's interior, preventing damage to the endoscope due to dense grouting.

[0007] Furthermore, after the detection probe moves into the detection hole, the operator needs to connect the fixing strap and the sleeve and tighten the fixing bolt to keep the ring block stable. This makes the protective component and the lower end of the insertion tube a whole, thereby reducing the probability that the upper end of the insertion tube will move with the controller when the controller is subjected to external force, thus reducing the probability that the detection probe will be damaged due to dragging.

[0008] At this point, when the detection probe extends into the detection hole and reaches the detection position, if the image displayed by the controller shows that there are no defects in the grouting inside the sleeve, then the grouting inside the sleeve is dense. If the image displayed by the controller shows that there are defects in the grouting inside the sleeve, the controller sends a control command to adjust the angle, depth, and lens depth of field of the probe to obtain the full view of the upper surface of the grouting material and the side view of the inner wall of the sleeve.

[0009] Furthermore, the protective assembly includes a connecting rod rotatably connected to the mounting block, a fixing band fixed to the side wall of the connecting rod away from the mounting block, and a fixing bolt threaded onto the side wall of the annular block.

[0010] Furthermore, the fixing strap includes a connecting strap that is fixed to the side wall of the connecting rod away from the mounting block, a hook and loop side provided on the side wall of the connecting strap, and a hook and loop side provided on one end of the connecting strap.

[0011] By adopting the above technical solution, after the detection probe moves into the detection hole, the operator needs to move the annular block to a suitable position on the insertion guide and rotate the fixing bolt to keep the annular block stable. Subsequently, the operator needs to connect the connecting strap to the sleeve and connect the corresponding positions on the hook and loop sides to the hook and loop sides to keep the connecting strap stable. This makes the connecting strap, the annular block, and the lower end of the insertion guide form a whole, thereby reducing the probability that the upper end of the insertion guide will move with the controller when the controller is subjected to external force.

[0012] Furthermore, the connecting strip includes a polyester strip that is interconnected with the hook and loop side and a silicone sheet disposed on the side wall of the polyester strip.

[0013] By adopting the above technical solution, when the connecting belt and the sleeve are connected to each other, the inner wall of the silicone sheet presses against the outer wall of the sleeve, thereby reducing the probability that the relative position between the connecting belt and the sleeve will change at this time, and further reducing the probability that the position of the connecting belt will change when the controller falls, thereby reducing the probability that the detection probe will be damaged due to dragging at this time.

[0014] Furthermore, the length of the connecting rod is less than the width of the controller.

[0015] By adopting the above technical solution, when the operator does not need to use the detection probe, they only need to separate the connecting strap from the sleeve and wrap the connecting strap around the controller. This allows the connecting strap to remain stable under the action of the Velcro loop. At this time, the connecting rod directly abuts against the side wall of the controller, thereby reducing the probability that one end of the connecting rod extends outside the controller, and thus reducing the difficulty for the operator to store the connecting rod.

[0016] Furthermore, the annular block is provided with an auxiliary magic fixing strap for limiting the position of the transmission wire.

[0017] By adopting the above technical solution, when staff need to use the auxiliary probe, they only need to connect the auxiliary magic fixing strap to both the insertion catheter and the transmission wire, so that the insertion catheter and the transmission wire can form a whole, thereby protecting the auxiliary probe with the auxiliary magic fixing strap and reducing the probability of damage to the auxiliary probe.

[0018] Furthermore, the sidewall of the Velcro loop side is provided with a connecting piece to reduce the difficulty for workers to untie the fastening strap.

[0019] By adopting the above technical solution, when workers need to separate the connecting strap from the sleeve, they only need to pull the connecting piece to separate the loop side and the hook side of the Velcro, thereby reducing the difficulty for workers to store the connecting strap.

[0020] Furthermore, the fixing bolt is a fixing bolt made by hand-tightening.

[0021] In summary, this utility model has the following beneficial effects: 1. In this application, when workers need to inspect the grouting effect of the sleeve, they must wait for the grout inside the sleeve to solidify before drilling an inspection hole along the axial direction of the grout outlet. Alternatively, an inspection hole can be pre-drilled using a plastic conduit during grouting. Subsequently, workers must set the inspection probe's position within the inspection hole and determine the position and angle of the endoscopic camera to capture images based on the defects inside the sleeve, ensuring that the captured images clearly show the defect boundaries and laser scale in both the horizontal and vertical directions. Further, workers must slowly insert the endoscope along the inspection hole using a connecting conduit, simultaneously capturing images and transmitting the image information to the controller. The controller's display screen allows for real-time observation of the grouting sleeve's interior, preventing damage to the endoscope due to dense grouting.

[0022] Furthermore, after the detection probe moves into the detection hole, the operator needs to connect the fixing strap and the sleeve and tighten the fixing bolt to keep the ring block stable. This makes the protective component and the lower end of the insertion tube a whole, thereby reducing the probability that the upper end of the insertion tube will move with the controller when the controller is subjected to external force, thus reducing the probability that the detection probe will be damaged due to dragging.

[0023] At this point, when the detection probe is inserted into the detection hole and reaches the detection position, if the image displayed by the controller shows that there are no defects in the grouting inside the sleeve, then the grouting inside the sleeve is dense. If the image displayed by the controller shows that there are defects in the grouting inside the sleeve, the controller sends a control command to adjust the angle, depth, and lens depth of field of the probe to obtain the full view of the upper surface of the grouting material and the image of the side of the inner wall of the sleeve. 2. In this application, after the detection probe moves into the detection hole, the operator needs to move the annular block to a suitable position on the insertion guide and rotate the fixing bolt to keep the annular block stable. Subsequently, the operator needs to connect the connecting strap and the sleeve, and connect the corresponding positions on the hook and loop sides to the hook and loop sides to keep the connecting strap stable. This makes the connecting strap, the annular block, and the lower end of the insertion guide form a whole, thereby reducing the probability that the upper end of the insertion guide will move with the controller when the controller is subjected to external force. 3. In this application, when the connecting strap and the sleeve are connected, the inner wall of the silicone sheet presses against the outer wall of the sleeve, thereby reducing the probability that the relative position between the connecting strap and the sleeve will change. This reduces the probability that the position of the connecting strap will change when the controller falls, thereby reducing the probability that the detection probe will be damaged due to dragging. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the laser emitter and its connection structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the fixing strap and its connection structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the mounting block and its connection structure according to an embodiment of the present invention. In the figure: 1. Sleeve; 11. Insertion conduit; 2. Detection probe; 21. Laser emitter; 3. Controller; 31. Transmission wire; 4. Auxiliary probe; 41. Ring block; 5. Mounting block; 6. Protective component; 61. Connecting rod; 62. Fixing strap; 621. Connecting strap; 6211. Polyester strap; 6212. Silicone sheet; 622. Hook and loop side; 623. Hook and loop side; 63. Fixing bolt; 7. Auxiliary hook and loop fixing strap; 8. Connecting piece. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figure 1-4 As shown in the figure, this application discloses a sleeve grouting defect detection device, including a sleeve 1, an insertion guide 11, a detection probe 2, a laser emitter 21, a controller 3, a transmission wire 31, an auxiliary probe 4, an annular block 41, a mounting block 5, a protective component 6, an auxiliary magic fixing strap 762, and a connecting piece 8. The insertion guide 11 is disposed inside the sleeve 1, and the detection probe 2 is connected to the end of the insertion guide 11. The laser emitter 21 is disposed on the detection probe 2, and the controller 3 is connected to the other end of the insertion guide 11. The transmission wire 31 is connected to the controller 3, and the auxiliary probe 4 is connected to the end of the transmission wire 31. The annular block 41 is a circular annular block structure, and the annular block 41 is slidably disposed on the side wall of the insertion guide 11. The mounting block 5 is a block structure, and the mounting block 5 is fixedly connected to the side wall of the annular block 41.

[0027] A protective assembly 6 is mounted on the mounting block 5 to protect the detection probe 2. The protective assembly 6 includes a connecting rod 61, a fixing strap 62, and a fixing bolt 63. The connecting rod 61 is a rectangular rod-shaped structure and is rotatably connected to the mounting block 5. The fixing strap 62 is fixed to the side wall of the connecting rod 61 away from the mounting block 5. The fixing strap 62 includes a connecting strap 621, a hook and loop fastener 622, and a loop fastener 623. The connecting strap 621 is fixed to the side wall of the connecting rod 61 away from the mounting block 5. The connecting strap 621 includes a polyester strap 6211 and a silicone sheet 6212. The polyester strap 6211 is connected to the loop fastener 623. The silicone sheet 6212 is a sheet-like structure and is mounted on the side wall of the polyester strap 6211. The fixing bolt 63 is threaded onto the side wall of the annular block 41.

[0028] After the detection probe 2 moves into the detection hole, the operator needs to move the annular block 41 to a suitable position on the insertion guide tube 11 and rotate the fixing bolt 63 to stabilize the annular block 41. Subsequently, the operator needs to connect the connecting strap 621 to the sleeve 1 and connect the corresponding positions on the hook and loop side 623 and the hook and loop side 622 to stabilize the connecting strap 621. This makes the connecting strap 621, the annular block 41, and the lower end of the insertion guide tube 11 form a whole, thereby reducing the probability that the upper end of the insertion guide tube 11 will move with the controller 3 when the controller 3 is subjected to external force.

[0029] When the connecting strap 621 is connected to the sleeve 1, the inner wall of the silicone sheet 6212 presses against the outer wall of the sleeve 1, thereby reducing the probability that the relative position between the connecting strap 621 and the sleeve 1 will change, and thus reducing the probability that the position of the connecting strap 621 will change when the controller 3 falls, thereby reducing the probability that the detection probe 2 will be damaged due to dragging.

[0030] To simplify the storage of the connecting rod 61, its length is less than the width of the controller 3. When the detection probe 2 is not in use, the operator separates the connecting strap 621 from the sleeve 1 and wraps it around the controller 3. The connecting strap 621 is then stabilized by the Velcro loop surface 623. At this point, the connecting rod 61 is directly pressed against the side wall of the controller 3, reducing the probability of one end of the connecting rod 61 extending outside the controller 3, thus simplifying the storage of the connecting rod 61.

[0031] The auxiliary magic fixing strap 762 is disposed on the side wall of the annular block 41 to limit the transmission wire 31. When the operator needs to use the auxiliary probe 4, the operator only needs to connect the auxiliary magic fixing strap 762 to both the insertion conduit 11 and the transmission wire 31, so that the insertion conduit 11 and the transmission wire 31 form a whole, thereby protecting the auxiliary probe 4 with the auxiliary magic fixing strap 762 and reducing the probability of damage to the auxiliary probe 4.

[0032] To reduce the difficulty for workers to untie the fastening strap 62, a connecting piece 8 is provided on the side wall of the hook and loop side 623. When workers need to separate the connecting strap 621 from the sleeve 1, they only need to pull the connecting piece 8 to separate the hook and loop side 623 from the hook and loop side 622, thereby reducing the difficulty for workers to store the connecting strap 621.

[0033] To reduce the difficulty for workers to tighten the fixing bolt 63, the fixing bolt 63 is made of a hand-tightening bolt.

[0034] The operating principle of the grouting defect detection device for sleeve 1 in this embodiment is as follows: When the operator needs to inspect the grouting effect of sleeve 1, the operator must wait for the grouting material inside sleeve 1 to solidify, and then drill a detection hole along the axial direction of the grout outlet. Alternatively, a detection hole can be pre-drilled using a plastic conduit during grouting. Subsequently, the operator needs to set the detection position of the detection probe 2 within the detection hole, and determine the position and tilt angle of the endoscopic camera to capture images based on the defect conditions inside sleeve 1, ensuring that the captured images clearly show the defect boundaries and laser scale in both the horizontal and vertical directions. Further, the operator needs to slowly insert the endoscope along the detection hole using a connecting conduit, while simultaneously capturing images with the endoscope and transmitting the image information to the controller 3. The display screen of the controller 3 allows for real-time observation of the internal condition of the grouting sleeve 1, preventing damage to the endoscope due to dense grouting.

[0035] Furthermore, after the detection probe 2 moves into the detection hole, the operator needs to connect the fixing strap 62 to the sleeve 1 and tighten the fixing bolt 63 to keep the annular block 41 stable. This makes the protective component 6 and the lower end of the insertion tube 11 form a whole, thereby reducing the probability that the upper end of the insertion tube 11 will move with the controller 3 when the controller 3 is subjected to external force, thus reducing the probability that the detection probe 2 will be damaged due to dragging.

[0036] At this time, when the detection probe 2 extends into the detection hole and reaches the detection position, if the image displayed by the controller 3 shows that there are no defects in the grouting inside the sleeve 1, then the grouting of the sleeve 1 is dense. If the image displayed by the controller 3 shows that there are defects in the grouting inside the sleeve 1, the controller 3 sends a control command to adjust the angle, depth, and lens depth of field of the probe to obtain the full view of the upper surface of the grouting material and the image of the inner wall side of the sleeve 1. The above description is only a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model's concept are within the protection scope of this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A sleeve grouting defect detection device, comprising a sleeve (1), an insertion conduit (11) disposed within the sleeve (1), a detection probe (2) connected to the end of the insertion conduit (11), a laser emitter (21) disposed on the detection probe (2), a controller (3) connected to the other end of the insertion conduit (11), a transmission wire (31) connected to the controller (3), and an auxiliary probe (4) connected to the end of the transmission wire (31), characterized in that: An annular block (41) is slidably disposed on the side wall of the insertion catheter (11), and a placement block (5) is fixedly connected to the side wall of the annular block (41). A protective component (6) for protecting the detection probe (2) is disposed on the placement block (5).

2. A device for detecting defects in a sleeve grouting according to claim 1, characterized in that: The protective component (6) includes a connecting rod (61) rotatably connected to the mounting block (5), a fixing band (62) fixed to the side wall of the connecting rod (61) away from the mounting block (5), and a fixing bolt (63) threadedly connected to the side wall of the annular block (41).

3. A device for detecting defects in a sleeve grout according to claim 2, characterised in that: The fixing strap (62) includes a connecting strap (621) that is fixed to the side wall of the connecting rod (61) away from the mounting block (5), a hook and loop side (622) provided on the side wall of the connecting strap (621), and a hook and loop side (623) provided on one end of the connecting strap (621).

4. A device for detecting defects in a sleeve grout according to claim 3, characterised in that: The connecting strip (621) includes a polyester strip (6211) that is connected to the hook and loop side (623) and a silicone sheet (6212) disposed on the side wall of the polyester strip (6211).

5. The sleeve grouting defect detection device according to claim 4, characterized in that: The length of the connecting rod (61) is less than the width of the controller (3).

6. The sleeve grouting defect detection device according to claim 5, characterized in that: The annular block (41) is provided with an auxiliary magic fixing band (7) for limiting the transmission wire (31) on its side wall.

7. A device for detecting defects in a sleeve grout according to claim 6, characterised in that: The side wall of the Velcro loop side (623) is provided with a connecting piece (8) to reduce the difficulty for workers to untie the fastening strap (62).

8. A device for detecting defects in a sleeve grout according to claim 7, characterised in that: The fixing bolt (63) is a fixing bolt (63) made by hand-tightening.

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