High-strain pile testing self-shifting universal platform

Abstract

The utility model discloses a high strain surveying pile self -displacement general platform, including base, both sides of base all are fixedly installed with positioning platform, the front and back both sides of positioning platform bottom all are fixedly installed with first hydraulic cylinder, the output of first hydraulic cylinder installs the backing pad, the left side mounting of positioning platform has the reinforcing plate. The utility model discloses through second hydraulic cylinder drive sliding frame horizontal movement, realizes the automatic displacement of gravity hammer, has improved the displacement precision and efficiency, utilizes first hydraulic cylinder and backing pad cooperation moving wheel, and the overall movement and fixed of platform are convenient, has strengthened the flexibility and stability of equipment, and the buffer spring of sliding seat bottom can effectively buffer the impact force when gravity hammer rebound, protects equipment parts, and each guide and limiting structure has guaranteed the stability and reliability of equipment operation, and the overall structure design is reasonable, and the versatility is strong, is applicable to the high strain surveying pile operation under different scenes.

Description

Technical Field

[0001] This utility model relates to the field of high strain testing technology, specifically a universal platform for high strain pile self-displacement. Background Technology

[0002] In the testing of pile foundations in building engineering, the high-strain pile testing method is a commonly used testing method. It measures the velocity and force time history curves at the top of the pile by impacting the pile with a heavy hammer, thereby analyzing the structural integrity of the pile body and the vertical compressive bearing capacity of a single pile. In existing high-strain pile testing equipment, the positioning and displacement of the heavy hammer mostly rely on manual or simple mechanical assistance, which has problems such as low displacement accuracy and low efficiency. Moreover, the heavy hammer is prone to tilting and deflection during the impact and falling process, and it can also cause wear on the frame, thus affecting the accuracy of the test results. Utility Model Content

[0003] The purpose of this invention is to provide a universal platform for high-strain pile self-displacement, which has the advantages of guiding the falling direction and facilitating displacement adjustment.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a universal self-displacement platform for high-strain pile measurement, comprising a base, with positioning platforms fixedly installed on both sides of the base, and first hydraulic cylinders fixedly installed on the front and rear sides of the bottom of the positioning platforms, with a pad installed at the output end of the first hydraulic cylinders, a reinforcing plate installed on the left side of the positioning platform, and a second hydraulic cylinder installed at the upper right end of the reinforcing plate, with a push plate installed at the output end of the second hydraulic cylinder, and a sliding frame installed at the right end of the push plate, with positioning frames fixedly installed on the front and rear sides of the top of the sliding frame, and sliding grooves vertically formed at both ends of the inner side of the positioning frame, with a sliding seat slidably installed inside the sliding groove, a positioning connecting seat installed inside the sliding seat, and a buffer spring installed at the bottom of the sliding seat, the lower end of which is connected to the bottom of the inner cavity of the sliding groove.

[0005] As a preferred embodiment, the top adjustment groove is provided on both the front and rear sides of the top of the base, and the bottom of the sliding frame is engaged with the inside of the top adjustment groove by a moving block and slidably installed.

[0006] As a preferred embodiment, the base has adjustment slots on both the front and rear sides, and a movable card holder is slidably installed on the outside of the adjustment slot. The bent part at the upper end of the movable card holder is connected to the end of the sliding frame.

[0007] As a preferred embodiment, a vertical guide rod is vertically installed on the outer side of the positioning frame, and one side of the outer end of the sliding seat is engaged with the surface of the vertical guide rod and slidably installed.

[0008] As a preferred embodiment, the movable card holder has a threaded groove in the middle, and an adjustment knob is installed inside the threaded groove. The locking end of the adjustment knob extends into the interior of the adjustment groove and is threaded in.

[0009] As a preferred embodiment, casters are fixedly installed around the bottom of the base, and the height of the casters is less than the height of the first hydraulic cylinder after it extends.

[0010] As a preferred embodiment, the middle part of the sliding frame has a through-slot design, and positioning connecting seats are symmetrically installed on the upper part of the sliding frame to connect with the upper side of the external gravity hammer.

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

[0012] 1. This utility model uses a second hydraulic cylinder to drive the sliding frame to move laterally, thereby achieving automatic displacement of the gravity hammer, which improves displacement accuracy and efficiency. The first hydraulic cylinder and the pad plate, along with the moving wheels, facilitate the overall movement and fixation of the platform, enhancing the flexibility and stability of the equipment. The buffer spring at the bottom of the sliding seat can effectively buffer the impact force when the gravity hammer rebounds, protecting the equipment components. The various guide and limit structures ensure the smoothness and reliability of the equipment operation. The overall structure is reasonably designed, highly versatile, and suitable for high-strain pile testing operations in different scenarios.

[0013] 2. This utility model utilizes a top adjustment groove and a sliding block at the bottom of the sliding frame to form a snap-fit ​​sliding engagement. Simultaneously, the adjustment grooves on the front and rear sides are adapted to the externally slidably mounted sliding bracket. This dual-guide and limiting structure design provides stable trajectory support for the lateral movement of the sliding frame, effectively preventing deviation and swaying during movement, ensuring the sliding frame always moves smoothly along the preset direction, and improving the stability of the structure's operation. Furthermore, the cooperation between the top adjustment groove and the sliding block, as well as the synergistic effect of the adjustment groove and the sliding bracket, allows for precise control of the sliding frame's movement range, meeting the accuracy requirements for position adjustment in different pile-testing scenarios. Attached Figure Description

[0014] Figure 1 This is a first-view 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 partial structural cross-sectional view of the present invention;

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

[0018] In the diagram: 1. Base; 2. Positioning platform; 3. First hydraulic cylinder; 4. Pad plate; 5. Reinforcing plate; 6. Second hydraulic cylinder; 7. Push plate; 8. Top adjustment slot; 9. Sliding frame; 10. Adjustment slot; 11. Moving bracket; 12. Adjustment knob; 13. Positioning frame; 14. Sliding slot; 15. Sliding seat; 16. Positioning connecting seat; 17. Buffer spring; 18. Vertical guide rod; 19. Moving wheel. 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 universal platform for high-strain pile self-displacement, including a base 1. Positioning platforms 2 are fixedly installed on both sides of the base 1. First hydraulic cylinders 3 are fixedly installed on the front and rear sides of the bottom of the positioning platform 2. A pad 4 is installed at the output end of the first hydraulic cylinder 3. A reinforcing plate 5 is installed on the left side of the positioning platform 2. A second hydraulic cylinder 6 is installed at the upper right end of the reinforcing plate 5. A push plate 7 is installed at the output end of the second hydraulic cylinder 6. A sliding frame 9 is installed at the right end of the push plate 7. Positioning frames 13 are fixedly installed on the front and rear sides of the top of the sliding frame 9. Sliding grooves 14 are vertically opened at both ends of the inner side of the positioning frame 13. A sliding seat 15 is slidably installed inside the sliding groove 14. A positioning connecting seat 16 is installed inside the sliding seat 15. A buffer spring 17 is installed at the bottom of the sliding seat 15. The lower end of the buffer spring 17 is connected to the bottom of the inner cavity of the sliding groove 14.

[0023] This technical solution uses the second hydraulic cylinder 6 to drive the sliding frame 9 to move laterally, thereby achieving automatic displacement of the gravity hammer and improving displacement accuracy and efficiency. The first hydraulic cylinder 3 and the pad 4, in conjunction with the moving wheels 19, facilitate the overall movement and fixation of the platform, enhancing the flexibility and stability of the equipment. The buffer spring 17 at the bottom of the sliding seat 15 can effectively buffer the impact force when the gravity hammer rebounds, protecting the equipment components. The various guide and limit structures ensure the smoothness and reliability of the equipment operation. The overall structure is reasonably designed, highly versatile, and suitable for high-strain pile testing operations in different scenarios.

[0024] Example 2:

[0025] Based on Embodiment 1, this utility model is as follows: Figure 2 As shown, the base 1 has horizontally opened top adjustment grooves 8 on both the front and rear sides of the top. The bottom of the sliding frame 9 is engaged with the inside of the top adjustment groove 8 by a moving block and is slidably installed. The base 1 has adjustment grooves 10 on both the front and rear sides. A movable bracket 11 is slidably installed on the outside of the adjustment groove 10. The bent part at the upper end of the movable bracket 11 is connected to the end of the sliding frame 9.

[0026] Adopting such Figure 1 The technical solution shown features a top adjustment groove 8 and a sliding frame 9 connected by a moving block at the bottom. Simultaneously, the adjustment grooves 10 on both the front and rear sides are adapted to the externally slidably mounted moving bracket 11. This dual-guide and limiting structure design provides stable trajectory support for the lateral movement of the sliding frame 9, effectively preventing deviation and swaying during movement. This ensures the sliding frame 9 always moves smoothly along a preset direction, improving the stability of the structure. Furthermore, the cooperation between the top adjustment groove 8 and the moving block, along with the synergistic effect of the adjustment groove 10 and the moving bracket 11, allows for precise control of the sliding frame 9's movement range, meeting the accuracy requirements for position adjustment in different pile-testing scenarios.

[0027] Secondly, in the technical solution, a vertical guide rod 18 is vertically installed on the outer side of the positioning frame 13, and the outer end of the sliding seat 15 is engaged with the surface of the vertical guide rod 18 and slidably installed; a threaded groove is opened in the middle of the movable bracket 11, and an adjustment knob 12 is threadedly installed inside the threaded groove, and the locking end of the adjustment knob 12 extends into the interior of the adjustment groove 10 and is threadedly installed.

[0028] Its adoption is as follows Figure 1The technical solution shown has a locking and sliding fit between the vertical guide rod 18 and the outer end of the sliding seat 15. This design provides precise guidance for the vertical movement of the sliding seat 15 and effectively avoids problems such as tilting and jamming when the sliding seat 15 slides under the rebound of the gravity hammer. The adjustment knob 12 installed in the threaded groove in the middle of the moving bracket 11 can quickly and firmly lock the moving bracket 11 to the base 1, thereby fixing the position of the sliding frame 9 and preventing the sliding frame 9 from being displaced by external forces during the operation of the equipment, thus ensuring the accuracy of the gravity hammer positioning.

[0029] Example 3:

[0030] This utility model is as follows Figures 1-4 As shown, the base 1 has casters 19 fixedly installed around its bottom. The height of the casters 19 is less than the height of the first hydraulic cylinder 3 after it extends out. The middle part of the sliding frame 9 has a through groove design. The upper part of the sliding frame 9 has a positioning connecting seat 16 that can be connected to the upper side of the external gravity hammer.

[0031] Using the above technical solution, the movable wheel 19 not only facilitates the staff to easily move the platform as a whole, flexibly adjust the placement of the equipment at the pile testing site, reduce the labor intensity of equipment handling, and improve the efficiency of the work site layout, but also allows the movable wheel 19 to leave the ground when the first hydraulic cylinder 3 extends to make the pad 4 contact the ground and lift the base 1, thus preventing the platform from shifting due to the force on the movable wheel 19 during the testing operation and ensuring the overall support stability of the platform.

[0032] The working principle of this utility model is as follows: The platform is moved to the pile measuring position by the moving wheel 19. The first hydraulic cylinder 3 is activated, which extends and drives the pad 4 to contact the ground and lift the base 1, so that the moving wheel 19 is lifted off the ground and the platform is fixed. The external gravity hammer is connected and fixed to the sliding seat 15 through the positioning connecting seat 16. According to the pile measuring requirements, the second hydraulic cylinder 6 is activated, which pushes the push plate 7 to drive the sliding frame 9 to move laterally along the top adjustment groove 8. At the same time, the moving bracket 11 moves synchronously along the adjustment groove 10. After adjusting to the appropriate position, the adjustment knob 12 is tightened to fix the sliding frame 9. When performing high strain testing, the gravity hammer falls and impacts the top of the pile. When it rebounds, the sliding seat 15 moves down along the sliding groove 14 and the vertical guide rod 18. The buffer spring 17 is compressed to absorb the impact force and play a protective role.

[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 universal platform for self-displacement of high-strain piles, comprising a base (1), characterized in that: Positioning platforms (2) are fixedly installed on both sides of the base (1). First hydraulic cylinders (3) are fixedly installed on the front and rear sides of the bottom of the positioning platform (2). A pad (4) is installed at the output end of the first hydraulic cylinder (3). A reinforcing plate (5) is installed on the left side of the positioning platform (2). A second hydraulic cylinder (6) is installed at the upper right end of the reinforcing plate (5). A push plate (7) is installed at the output end of the second hydraulic cylinder (6). A sliding frame (9) is installed at the right end of the push plate (7). Positioning frames (13) are fixedly installed on the front and rear sides of the top of the sliding frame (9). A sliding groove (14) is vertically opened at both ends of the inner side of the positioning frame (13). A sliding seat (15) is slidably installed inside the sliding groove (14). A positioning connecting seat (16) is installed inside the sliding seat (15). A buffer spring (17) is installed at the bottom of the sliding seat (15). The lower end of the buffer spring (17) is connected to the bottom of the inner cavity of the sliding groove (14).

2. The universal platform for high-strain pile self-displacement according to claim 1, characterized in that: The base (1) has horizontally opened top adjustment grooves (8) on both the front and rear sides of the top. The bottom of the sliding frame (9) is engaged with the inside of the top adjustment groove (8) by a moving block and is slidably installed.

3. The universal platform for high-strain pile self-displacement according to claim 1, characterized in that: The base (1) has adjustment slots (10) on both the front and rear sides. A movable card holder (11) is slidably installed on the outside of the adjustment slot (10). The bent part at the upper end of the movable card holder (11) is connected to the end of the sliding frame (9).

4. The universal platform for high-strain pile self-displacement according to claim 1, characterized in that: A vertical guide rod (18) is vertically installed on the outer side of the positioning frame (13), and one side of the outer end of the sliding seat (15) is engaged with the surface of the vertical guide rod (18) and slidably installed.

5. A universal platform for high-strain pile self-displacement according to claim 3, characterized in that: The movable card holder (11) has a threaded groove in the middle, and an adjustment knob (12) is installed inside the threaded groove. The locking end of the adjustment knob (12) extends into the interior of the adjustment groove (10) and is installed by thread.

6. The universal platform for high-strain pile self-displacement according to claim 1, characterized in that: The base (1) is fixedly equipped with casters (19) around its bottom. The height of the casters (19) is less than the height of the first hydraulic cylinder (3) after it extends out.

7. The universal platform for high-strain pile self-displacement according to claim 1, characterized in that: The middle part of the sliding frame (9) is designed with a through groove, and a positioning connecting seat (16) is symmetrically installed on the upper part of the sliding frame (9) to connect with the upper side of the external gravity hammer.

Images