A pile foundation internal detection device with an orifice positioning structure

Abstract

The utility model relates to the technical field of pile foundation internal detection, concretely to a kind of pile foundation internal detection device with orifice positioning structure, including pile body, the middle part of the top of pile body is equipped with fixed disc connected with adsorption, the annular inner wall of fixed disc is equipped with galvanized steel pipe, the inside of galvanized steel pipe is equipped with square steel channel, the middle part in the inside of square steel channel is vertically penetrated with depth measuring rod. Improved detection device, fixed disc bottom suction disc can be tool-free self-fixing, to quickly adapt to different pile body, galvanized steel pipe and square steel channel guide, can ensure that depth measuring rod is vertically lowered, the magneticity of depth measuring rod is spliced light and fast, the setting of its sliding slot and centimeter mark can display depth in real time, the setting of fixed hole ensures positioning accuracy, rotary orifice positioning mechanism. Direction can be calibrated to replace gyroscope, realize low-cost orientation, waterproof camera is directly connected to notebook through POE network cable, get rid of special host, reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation internal testing technology, specifically a pile foundation internal testing device with an orifice positioning structure. Background Technology

[0002] Internal pile foundation testing is a technique used in building engineering to inspect the internal quality of pile foundation structures. It involves using specialized methods to check for concrete density, cracks, voids, sediment thickness, and compliance with the bearing stratum, in order to assess the pile foundation's bearing capacity and safety. This is a key quality control measure to ensure that the pile foundation meets design and code requirements. Internal pile foundation testing is a crucial step in ensuring the safety of building foundations, and commonly used methods include ultrasonic transmission, core drilling, and low-strain reflected wave testing.

[0003] During the design process of this utility model, the following problems were discovered in the existing technology:

[0004] Existing detection devices have specially designed video hosts that need to be used separately with cameras, which are expensive to purchase separately. They can only be used for this specific task, and the orientation inside the hole cannot be determined or requires an expensive gyroscope for orientation. In addition, the camera inside the hole is not easy to lower due to its small weight. Utility Model Content

[0005] The purpose of this invention is to provide an internal detection device for pile foundations with an orifice positioning structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an internal detection device for pile foundations with an orifice positioning structure, comprising a pile body, wherein a fixed disc is provided at the center of the top of the pile body for adsorption connection, a galvanized steel pipe is provided on the annular inner wall of the fixed disc, a square steel channel is provided inside the galvanized steel pipe, a depth measuring rod is vertically inserted through the center of the square steel channel, and a waterproof camera is screwed to the bottom end of the depth measuring rod.

[0007] More preferably, the bottom of the fixed disk has a plurality of suction cups distributed in a ring.

[0008] More preferably, the inner walls of the square steel channel are provided with sliders on all four sides.

[0009] More preferably, the depth measuring rod is divided into a standard connecting rod and a short connecting rod.

[0010] More preferably, the upper and lower ends of the standard connecting rod and the short connecting rod are respectively provided with magnetic posts and magnetic slots, and the magnetic posts and magnetic slots form an adsorption connection.

[0011] More preferably, the four outer walls of the standard connecting rod and the short connecting rod are provided with sliding grooves, the slider and the sliding grooves form a sliding connection, and the surface of the sliding grooves is provided with centimeter marks.

[0012] In a further preferred embodiment, the fixed disc, the galvanized steel pipe, and the square steel channel together constitute the orifice positioning mechanism.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This internal pile foundation inspection device achieves rapid adsorption and fixation of the pile top using a fixed disc suction cup, requiring no tools and adaptable to various surfaces. Combined with galvanized steel pipes and square steel channels for guidance, it ensures the depth measuring rod is lowered vertically without wobbling, solving the problems of cumbersome installation and tilting in traditional methods. The magnetic splicing of the depth measuring rod is lightweight and quick, and the centimeter-level sliding groove allows for real-time depth display. The fixed holes allow for precise positioning via temporary suspension, and the waterproof camera's orientation can be calibrated using an overall rotating borehole positioning mechanism, replacing expensive gyro-orientation instruments and enabling low-cost determination of borehole orientation. Its waterproof camera connects directly to a laptop via PoE cable, eliminating the need for a dedicated host and reducing costs. It supports high-definition shooting and real-time focusing, ensuring stable underwater operation and efficiently acquiring detailed images of the pile foundation's interior, providing intuitive data for quality assessment. Attached Figure Description

[0015] Figure 1 This is a frontal cross-sectional view of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the fixed disc structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the depth measuring rod structure of this utility model.

[0019] In the diagram: 1. Pile body; 2. Fixed disc; 201. Suction cup; 3. Galvanized steel pipe; 4. Square steel channel; 401. Slider; 5. Depth measuring rod; 501. Standard connecting rod; 502. Short connecting rod; 503. Magnetic insert; 504. Magnetic slot; 505. Slide groove; 6. Waterproof camera. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a pile foundation internal detection device with an orifice positioning structure, including a pile body 1, a fixed disc 2 connected to the middle of the top of the pile body 1, a galvanized steel pipe 3 on the annular inner wall of the fixed disc 2, a square steel channel 4 inside the galvanized steel pipe 3, a depth measuring rod 5 vertically penetrating the middle of the square steel channel 4, and a waterproof camera 6 screwed to the bottom end of the depth measuring rod 5.

[0022] In this embodiment, as Figure 1 and Figure 2 and Figure 3 As shown, several suction cups 201 are distributed in a ring at the bottom of the fixed disk 2.

[0023] In this embodiment, as Figure 1 and Figure 3 As shown, the inner walls of the square steel channel 4 on all four sides are equipped with sliders 401.

[0024] In this embodiment, as Figure 4 As shown, the depth measuring rod 5 is divided into a standard connecting rod 501 and a short connecting rod 502.

[0025] In this embodiment, as Figure 4 As shown, the upper and lower ends of the standard connecting rod 501 and the short connecting rod 502 are respectively provided with magnetic inserts 503 and magnetic slots 504, and the magnetic inserts 503 and magnetic slots 504 form an adsorption connection.

[0026] In this embodiment, as Figure 4 As shown, the four outer walls of the standard connecting rod 501 and the short connecting rod 502 are provided with sliding grooves 505. The slider 401 and the sliding grooves 505 form a sliding connection. The surface of the sliding grooves 505 is marked with centimeters.

[0027] In this embodiment, as Figure 1 and Figure 2 and Figure 3 As shown, the fixed disc 2, galvanized steel pipe 3, and square steel channel 4 together constitute the orifice positioning mechanism.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the internal detection device for pile foundations with orifice positioning structure operates as follows:

[0029] First, the operator can drill a hole in the pile 1 where the ultrasonic testing shows an abnormality. After drilling to the abnormal depth, clean the sediment, laitance, and other impurities from the hole, and fill the hole with clean water to ensure a clean and liquid-filled environment, providing conditions for the underwater operation of the waterproof camera 6. Then, check the status of each component. At this time, the outer galvanized steel pipe 3 can be aligned with the center of the pile hole and inserted vertically, so that the fixing disc 2 on the outer wall of the top of the galvanized steel pipe 3 can be placed horizontally in the center of the top of the pile 1. At the same time, the operator can press the fixing disc 2 firmly so that the suction cups 201 distributed in a ring at its bottom can be tightly attached to the pile. At the top of the pile body 1, ensure that the entire borehole positioning mechanism is stable and does not shake, and make the square steel channel 4 form a guide channel that runs vertically through the top and bottom. Then, the operator can select an appropriate number of standard connecting rods 501 and short connecting rods 502 according to the estimated borehole depth, and align the magnetic insert 503 at the lower end of the upper section of the rod with the magnetic slot 504 at the upper end of the lower section of the rod, and gently push them until they are firmly attracted. At the same time, align the mounting screw plate of the waterproof camera 6 with the threaded interface at the bottom of the depth measuring rod 5, rotate it clockwise to tighten it, ensure that the connection is compacted, and straighten the network cable connected to the camera so that it extends vertically upward along the outside of the depth measuring rod 5.

[0030] At this point, align the assembled depth measuring rod 5 and waterproof camera 6 vertically with the top opening of the square steel channel 4, ensuring that the grooves 505 on the four outer walls of the standard connecting rod 501 and the short connecting rod 502 are fully engaged with the slider 401 on the inner wall of the square steel channel 4, and ensuring that the depth measuring rod 5 can only move vertically up and down and will not rotate circumferentially. Then, the operator holds the top of the depth measuring rod 5 with both hands and slowly lowers it along the square steel channel 4. By observing the centimeter mark on the surface of the groove 505 on the outside of the rod, the lowering depth of the depth measuring rod 5 can be read in real time. When it is close to the target depth, the speed can be slowed down until the waterproof camera 6 reaches the specified depth. At this point, the round hole closest to the top of the square steel channel 4 can be found on the depth measuring rod 5, and a fixing pin or steel bar can be inserted to suspend the rod on the square steel channel 4, preventing it from falling due to its own weight or water flow impact.

[0031] During this period, the operator can rotate the entire orifice positioning mechanism and use a compass or GPS to position the pre-set mark direction of the square steel channel 4 to the due north direction. At this time, the positive direction of the waterproof camera 6 at the bottom of the depth measuring rod 5 is consistent with the mark direction of the square steel channel 4. The operator can make a mark at the junction of the edge of the fixed disc 2 and the top surface of the pile body 1 to ensure that the reference direction can be quickly reset during subsequent rotation and adjustment.

[0032] One end of the PoE cable of the waterproof camera 6 is connected to the wiring port at the top of the depth measuring rod 5, and the other end is led out through a waterproof connector to connect to the external power supply system. At the same time, the other end is connected to a laptop. The operator can open the laptop, run the dedicated video recording software, search for the waterproof camera 6, confirm that the image inside the hole is displayed in real time, and adjust the motorized focusing lens of the waterproof camera 6 in real time until the image is clear and without blur. Then, the detection and recording can begin, and video or photos can be taken. The detection time, initial depth value and orientation reference are recorded simultaneously.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pile foundation internal inspection device with an orifice positioning structure, comprising a pile body (1), characterized in that: The top of the pile (1) is provided with a fixed disc (2) that is connected to it. The inner wall of the fixed disc (2) is provided with a galvanized steel pipe (3). The inside of the galvanized steel pipe (3) is provided with a square steel channel (4). A depth measuring rod (5) is vertically inserted through the middle of the inside of the square steel channel (4). A waterproof camera (6) is screwed to the bottom of the depth measuring rod (5).

2. The pile foundation internal detection device with orifice positioning structure according to claim 1, characterized in that: The bottom of the fixed disk (2) has several suction cups (201) arranged in a ring.

3. The pile foundation internal detection device with orifice positioning structure according to claim 1, characterized in that: The four inner walls of the square steel channel (4) are provided with sliders (401).

4. The pile foundation internal detection device with orifice positioning structure according to claim 1, characterized in that: The depth measuring rod (5) is divided into a standard connecting rod (501) and a short connecting rod (502).

5. The pile foundation internal detection device with orifice positioning structure according to claim 4, characterized in that: The standard connecting rod (501) and the short connecting rod (502) are respectively provided with magnetic inserts (503) and magnetic slots (504) at their upper and lower ends, and the magnetic inserts (503) and magnetic slots (504) form an adsorption connection.

6. The pile foundation internal detection device with orifice positioning structure according to claim 4, characterized in that: The standard connecting rod (501) and the short connecting rod (502) are provided with sliding grooves (505) on all four outer walls. The slider (401) and the sliding groove (505) form a sliding connection. The surface of the sliding groove (505) is marked with centimeters.

7. The pile foundation internal detection device with orifice positioning structure according to claim 1, characterized in that: The fixed disc (2), galvanized steel pipe (3), and square steel channel (4) together constitute the orifice positioning mechanism.

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