High strain method foundation pile detection guiding device

Abstract

The utility model discloses a high strain method base pile detects guiding device, including bottom support frame, the top of bottom support frame is equipped with the frame, the both sides of frame are installed and are penetrated to have the adjusting screw rod, the inside of adjusting screw rod's outer end is installed and has the rotating handle, the inner end rotation of adjusting screw rod is installed and has the protection frame, the upside -down symmetry of frame's front and back two sides is installed and has the transverse positioning board, the inside of transverse positioning board is equipped with the sliding slot, the inside sliding of sliding slot is installed and has the horizontal sliding block, the inside of horizontal sliding block is connected with the outside of protection frame. The utility model discloses through adjusting screw rod drive protection frame transverse movement, can adapt to the side protection demand of different diameter gravity hammer, avoid gravity hammer deviation and hit, double -oriented structure restricts gravity hammer transverse displacement, ensures its along vertical direction and hits the base pile, promotes the accuracy of detection data, reduces the risk of impact simultaneously, promotes the operation safety.

Description

Technical Field

[0001] This utility model relates to the field of foundation pile testing technology, specifically a high strain method foundation pile testing guide device. Background Technology

[0002] High-strain method pile testing involves lifting a gravity hammer and letting it fall freely to impact the top of the pile to obtain its mechanical performance parameters. In existing testing devices, the gravity hammer is prone to lateral deviation during the fall due to insufficient guidance. This can not only cause it to collide with surrounding equipment or personnel, creating safety hazards, but also cause the impact point to deviate from the center of the pile, affecting the accuracy of the test data. In addition, there is a lack of protective structures for the sides of the gravity hammer, and the overall device lacks stability during the testing process, further reducing the safety and reliability of the testing operation. Utility Model Content

[0003] The purpose of this invention is to provide a high strain method foundation pile testing guidance device, which has the advantages of guidance and protection.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-strain method foundation pile testing guide device, comprising a bottom support frame, a frame installed on the top of the bottom support frame, adjusting screws installed through both sides of the frame, a rotating handle installed inside the outer end of the adjusting screw, a protective frame rotatably installed on the inner end of the adjusting screw, transverse positioning plates symmetrically installed on the front and rear sides of the frame, a sliding groove opened on the inner side of the transverse positioning plate, a transverse slider slidably installed inside the sliding groove, the inner side of the transverse slider being connected to the outer side of the protective frame, a gravity hammer installed between the two protective frames, a first lifting lug installed on both sides of the top of the gravity hammer, and a second lifting lug installed inside the first lifting lug and at the center of the top of the gravity hammer.

[0005] As a preferred embodiment, a vertical limiting rod is fixedly installed in the middle of the inner side of the frame, and a guide slider is slidably installed on the outside of the vertical limiting rod. The inner side of the guide slider is connected to the surface of the gravity hammer.

[0006] As a preferred embodiment, guide posts are embedded in the interior of the left and right sides of the frame cavity, and guide positioning seats are slidably mounted on the surface of the guide posts, with the inner end of the guide positioning seats connected to the surface of the gravity hammer.

[0007] As a preferred embodiment, a positioning bracket is fixedly installed at the upper end of the guide column, and the bent part at the lower end of the positioning bracket is connected to the top of the frame.

[0008] As a preferred embodiment, support legs are fixedly installed on both sides of the bottom of the bottom support frame, and pads are installed at the lower ends of the support legs.

[0009] As a preferred embodiment, threaded grooves are provided in the middle of both sides of the frame, one end of the adjusting screw is located inside the threaded groove and threadedly installed, and a limiting bushing is sleeved on the outside of the frame and on the surface of the adjusting screw.

[0010] As a preferred embodiment, the guide slider has an engagement groove inside, and the inner protruding end of the vertical limiting rod is engaged inside the engagement groove and slidably installed vertically.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model uses an adjustable screw to drive the protective frame to move laterally, which can adapt to the lateral protection requirements of gravity hammers of different diameters, avoid the gravity hammer from deflecting and impacting, and the dual guide structure restricts the lateral displacement of the gravity hammer, ensuring that it impacts the foundation pile in the vertical direction, improving the accuracy of the detection data, while reducing the risk of impact and improving the safety of operation.

[0013] 2. This utility model, through the cooperation of a vertical limiting rod and an externally slidably installed guide slider, can form a precise longitudinal guiding constraint for the gravity hammer. At the same time, the guide columns embedded on the left and right sides of the frame cavity cooperate with the guide positioning seats slidably installed on the surface to limit the movement trajectory of the gravity hammer from the side. Together, they form a double guiding and protective structure, which not only effectively limits the lateral deviation of the gravity hammer during its vertical movement, avoiding the gravity hammer from hitting the protective frame or the surrounding structure of the foundation pile and causing safety hazards, but also ensures that the gravity hammer always falls vertically to impact the top of the foundation pile, ensuring that the impact point accurately corresponds to the center of the foundation pile and reducing the error in the detection data caused by the deviation of the impact position. Attached Figure Description

[0014] Figure 1 This is a first-person perspective structural perspective view of the present invention;

[0015] Figure 2 This is a second-view perspective structural perspective view of the present invention;

[0016] Figure 3 This is a schematic diagram of the protective frame structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the frame of this utility model.

[0018] In the diagram: 1. Bottom support frame; 2. Frame; 3. Adjusting screw; 4. Rotating handle; 5. Protective frame; 6. Horizontal positioning plate; 7. Sliding groove; 8. Horizontal slider; 9. Gravity hammer; 10. First lifting lug; 11. Second lifting lug; 12. Vertical limiting rod; 13. Guide slider; 14. Guide column; 15. Guide positioning seat; 16. Positioning bracket; 17. Support leg; 18. Pad. Detailed Implementation

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

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0021] Example 1:

[0022] Please see Figure 1 As shown, this utility model provides a high strain method foundation pile testing guide device, including a bottom support frame 1, a frame 2 installed on the top of the bottom support frame 1, adjusting screws 3 installed through both sides of the frame 2, a rotating handle 4 installed inside the outer end of the adjusting screw 3, a protective frame 5 rotatably installed on the inner end of the adjusting screw 3, transverse positioning plates 6 symmetrically installed on the front and rear sides of the frame 2, a sliding groove 7 opened on the inner side of the transverse positioning plate 6, a transverse slider 8 slidably installed inside the sliding groove 7, the inner side of the transverse slider 8 connected to the outer side of the protective frame 5, a gravity hammer 9 installed between the two protective frames 5, a first lifting lug 10 installed on both sides of the top of the gravity hammer 9, and a second lifting lug 11 installed on the inner side of the first lifting lug 10 and located at the center of the top of the gravity hammer 9.

[0023] This technical solution uses the adjusting screw 3 to drive the protective frame 5 to move laterally, which can adapt to the lateral protection requirements of gravity hammers 9 of different diameters, avoid the gravity hammers 9 from deflecting and impacting, and the dual guide structure restricts the lateral displacement of gravity hammers 9 to ensure that they impact the foundation piles in the vertical direction, improve the accuracy of detection data, reduce the risk of impact, and improve the safety of operation.

[0024] Example 2:

[0025] Based on Embodiment 1, this utility model is as follows: Figure 1 As shown, a vertical limiting rod 12 is fixedly installed in the middle of the inner side of the frame 2, and a guide slider 13 is slidably installed on the outside of the vertical limiting rod 12. The inner side of the guide slider 13 is connected to the surface of the gravity hammer 9. Guide columns 14 are embedded in the inner sides of the left and right sides of the inner cavity of the frame 2. Guide positioning seats 15 are slidably installed on the surface of the guide columns 14, and the inner end of the guide positioning seats 15 is connected to the surface of the gravity hammer 9.

[0026] Adopting such Figure 1 The technical solution shown involves a vertical limiting rod 12 that works in conjunction with an externally slidable guide slider 13 to provide precise longitudinal guidance and constraint for the gravity hammer 9. Simultaneously, guide posts 14 embedded on the left and right sides of the inner cavity of the frame 2 work in conjunction with guide positioning seats 15 slidably mounted on the surface to limit the movement trajectory of the gravity hammer 9 laterally. Together, these two elements form a dual-guide protection structure, effectively limiting the lateral deviation of the gravity hammer 9 during its vertical movement, preventing it from impacting the protective frame 5 or the surrounding structure of the foundation pile and causing safety hazards. It also ensures that the gravity hammer 9 always falls vertically to impact the top of the foundation pile, guaranteeing that the impact point accurately corresponds to the center of the foundation pile and reducing errors in the detection data caused by impact position deviations.

[0027] Secondly, in the technical solution, a positioning bracket 16 is fixedly installed on the upper end of the guide column 14, and the bent part at the lower end of the positioning bracket 16 is connected to the top of the frame 2; support legs 17 are fixedly installed on both sides of the bottom of the bottom support frame 1, and a pad 18 is installed at the lower end of the support leg 17.

[0028] Its adoption is as follows Figure 1 The technical solution shown features a positioning bracket 16 made of angle steel. The bent structure design increases the contact area between the positioning bracket 16 and the frame 2, effectively preventing the guide column 14 from longitudinally shifting or laterally tilting when the gravity hammer 9 slides up and down, further ensuring the guiding accuracy of the guide column 14 for the gravity hammer 9. At the same time, the support leg 17 not only raises the entire device to a height suitable for pile testing, making it easier for operators to adjust the top testing position of the pile, but also disperses the impact load of the gravity hammer 9 borne by the bottom support frame 1, avoiding local stress concentration that could lead to device deformation.

[0029] Example 3:

[0030] This utility model is as follows Figures 1-4 As shown, threaded grooves are provided in the middle of both sides of the frame 2. One end of the adjusting screw 3 is located inside the threaded groove and is threadedly installed. A limiting sleeve is sleeved on the outside of the frame 2 and on the surface of the adjusting screw 3. A locking groove is provided inside the guide slider 13. The inner protruding end of the vertical limiting rod 12 is locked inside the locking groove and is vertically slidably installed.

[0031] With the above technical solution, one end of the adjusting screw 3 is located in the threaded groove and threadedly connected. A limiting sleeve is fixedly sleeved on the outside of the frame 2 and on the surface of the adjusting screw 3. This can effectively limit the radial movement of the adjusting screw 3 during lateral adjustment and impact vibration of the gravity hammer 9, prevent the protective frame 5 from having protective gaps due to the displacement of the adjusting screw 3, and further ensure the stability of the lateral protection. At the same time, the guide slider 13 has a locking groove inside that matches the vertical limiting rod 12, ensuring that the guide slider 13 slides smoothly along the vertical limiting rod 12, preventing the guide slider 13 from disengaging from the vertical limiting rod 12 when the gravity hammer 9 moves up and down, avoiding the gravity hammer 9 from shifting due to the separation of the guide components, and significantly improving the reliability of the guide protection.

[0032] The working principle of this utility model is as follows: According to the diameter of the gravity hammer 9, the rotating handle 4 of the adjusting screw 3 is rotated to drive the protective frame 5 to move along the sliding groove 7 of the transverse positioning plate 6, so that the protective frame 5 fits against both sides of the gravity hammer 9. When the gravity hammer 9 is hoisted, the guide slider 13 slides along the vertical limit rod 12, and the guide positioning seat 15 slides along the guide column 14 to ensure that the gravity hammer 9 falls vertically. When the gravity hammer 9 impacts the foundation pile, the protective frame 5 prevents the gravity hammer 9 from deviating, thereby improving the safety and accuracy of the detection.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A high-strain pile testing guide device, comprising a bottom support frame (1), characterized in that: The bottom support frame (1) is equipped with a frame (2) on top. Adjusting screws (3) are installed through both sides of the frame (2). A rotating handle (4) is installed inside the outer end of the adjusting screw (3). A protective frame (5) is rotatably installed on the inner end of the adjusting screw (3). A transverse positioning plate (6) is symmetrically installed on the front and rear sides of the frame (2). A sliding groove (7) is opened on the inner side of the transverse positioning plate (6). A transverse slider (8) is slidably installed inside the sliding groove (7). The inner side of the transverse slider (8) is connected to the outside of the protective frame (5). A gravity hammer (9) is installed between the two protective frames (5). A first lifting lug (10) is installed on both sides of the top of the gravity hammer (9). A second lifting lug (11) is installed on the inner side of the first lifting lug (10) and at the center of the top of the gravity hammer (9).

2. The high-strain pile testing guidance device according to claim 1, characterized in that: A vertical limiting rod (12) is fixedly installed in the middle of the inner side of the frame (2), and a guide slider (13) is slidably installed on the outside of the vertical limiting rod (12). The inner side of the guide slider (13) is connected to the surface of the gravity hammer (9).

3. The high-strain pile testing guidance device according to claim 1, characterized in that: Guide columns (14) are embedded in the inner sides of the frame (2). Guide positioning seats (15) are slidably installed on the surface of the guide columns (14). The inner end of the guide positioning seats (15) is connected to the surface of the gravity hammer (9).

4. The high-strain pile testing guidance device according to claim 3, characterized in that: The upper end of the guide post (14) is fixedly installed with a positioning bracket (16), and the bent part at the lower end of the positioning bracket (16) is connected to the top of the frame (2).

5. The high-strain pile testing guidance device according to claim 1, characterized in that: The bottom support frame (1) has support legs (17) fixedly installed on both sides of the bottom, and a pad (18) is installed at the lower end of the support legs (17).

6. The high-strain pile testing guidance device according to claim 1, characterized in that: The frame (2) has threaded grooves in the middle of both sides. One end of the adjusting screw (3) is located inside the threaded groove and is threaded. A limiting bushing is sleeved on the outside of the frame (2) and on the surface of the adjusting screw (3).

7. The high-strain pile testing guidance device according to claim 2, characterized in that: The guide slider (13) has a locking groove inside, and the inner protruding end of the vertical limiting rod (12) is engaged in the locking groove and slidably installed vertically.

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