Rapid testing device for vertical bearing capacity of foundation pile

Abstract

The utility model discloses a rapid testing device for the vertical bearing capacity of a foundation pile, which comprises a foundation pile body, auxiliary supports, a sleeve and a clamping hoop, the clamping hoop is sleeved at the upper end of the foundation pile body, the auxiliary supports are symmetrically hinged to the edge of the bottom of the clamping hoop, the sleeve is sleeved at the lower ends of the auxiliary supports, and the bottom of the sleeve is hinged to the ground. The bottom of the auxiliary support is connected with the bottom in the sleeve through a first spring, and first guide sliding blocks are connected to the two sides of the lower end of the auxiliary support. According to the utility model, the two auxiliary brackets are symmetrically hinged to the bottom of the clamping hoop, and the auxiliary brackets can repeatedly stretch out and draw back to adapt to the offset movement of the clamping hoop due to bearing force in cooperation with the guide sliding of the guide sliding block I along the guide sliding chute II and the elastic supporting property of the spring I; and the use stability of the clamping hoop can be ensured when the bearing capacity is too large, and the bearing capacity of the foundation pile body test is prevented from deviating.

Description

Technical Field

[0001] This utility model relates to the field of engineering testing technology, specifically a rapid testing device for the vertical bearing capacity of foundation piles. Background Technology

[0002] Existing pile foundations are a common reinforcement method for improving the bearing capacity of building foundations and controlling settlement. Bearing capacity testing of the piles is essential. A common pile bearing capacity test involves placing a jack on top of the test pile, placing a load-bearing device on top of the jack, and stacking a specific weight of counterweight cement blocks on the load-bearing device. A support cement pile is then placed between the load-bearing device and the ground to support the device and prevent it from tipping over.

[0003] A pile bearing capacity testing device disclosed in Chinese Utility Model Patent Publication No. CN222206518U protects the top of the pile with a protective hoop and a protective platform. It is easy and quick to install, saving manpower and time, as well as prefabrication time and labor. The guiding mechanism acts as a guide when adjusting the height and pressure of multiple jacks, maintaining the stability and balance of the entire testing device. However, when connecting the protective platform to the pile for bearing capacity testing with the protective hoop, the hoop is prone to displacement and instability under excessive bearing capacity, leading to deviations in the pile bearing capacity test. This issue urgently needs further development. Utility Model Content

[0004] The purpose of this invention is to provide a rapid testing device for the vertical bearing capacity of foundation piles, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid testing device for the vertical bearing capacity of a foundation pile, comprising a foundation pile body, auxiliary supports, a sleeve, and a clamp. A clamp is fitted onto the upper end of the foundation pile body. An auxiliary support is symmetrically hinged to the bottom edge of the clamp. A sleeve is fitted onto the lower end of the auxiliary support. The bottom of the sleeve is hinged to the ground. The bottom of the auxiliary support is connected to the bottom inside the sleeve via a spring. Guide sliders are connected to both sides of the lower end of the auxiliary support. Guide grooves matching the guide sliders are connected to both sides inside the sleeve. Two auxiliary supports are symmetrically hinged to the bottom of the clamp. Combined with the guide sliders sliding along the guide grooves and the elastic support of the springs, the auxiliary supports can repeatedly extend and retract to accommodate the clamp's displacement due to bearing capacity. This ensures the stability of the clamp even when the bearing capacity is too high, preventing deviations in the bearing capacity test of the foundation pile body.

[0006] Preferably, a protective platform is connected to the upper surface of the clamp, and jacks are installed at equal intervals on the top of the protective platform. A crossbeam is connected to the top of the multiple jacks. When it is necessary to adjust the plunger height and pressure of the multiple jacks, the guide rod will be moved upward by the crossbeam. The guide slider two slides along the guide groove one to guide and assist in sliding, which plays a guiding role and maintains the stability and balance of the entire testing device. When the guide rod moves, the toothed rack can drive the gear meshing with it to rotate. When the rotation stops, the expansion of the spring three causes the toothed block to automatically mesh with the bottom of the gear, which plays a positioning role and further improves the auxiliary support role of the guide rod.

[0007] Preferably, the bottom of each end of the cross frame is connected to a support frame and a guide rod, the bottom of each of the two support frames is equipped with a lifting cylinder, and the lower end of each of the two guide rods is fitted with a support cylinder.

[0008] Preferably, the bottom end of the guide rod is connected to the bottom of the support cylinder via a second spring, and guide sliders are connected to both sides of the bottom end of the guide rod. Guide grooves matching the guide sliders are connected to both sides of the inside of the support cylinder.

[0009] Preferably, the front surface of the guide rod is connected to a toothed strip, the front side of the toothed strip is engaged with a gear, the gear extends to the outside of the front side of the support cylinder and is positioned on the front surface of the support cylinder through a shaft.

[0010] Preferably, a fixing block is fixed to the front surface of the support cylinder, and a toothed locking block is connected inside the fixing block by a spring. The top of the toothed locking block meshes with the bottom of the gear.

[0011] Preferably, the front and rear sides of the toothed block are respectively connected to an operating block and a limiting slider, the front side of the fixed block is connected to a limiting groove that matches the operating block, the operating block extends to the front side of the fixed block, and the rear side inside the fixed block is connected to a limiting groove that matches the limiting slider.

[0012] Preferably, the front side of the clamp includes hinged components, and the rear side of the clamp has a threaded rod. Rotating the threaded rod can drive the movable sleeve and the hoop ring connected by the movable sleeve to move closer to another hoop ring until the top outer periphery of the foundation pile body is clamped. This facilitates disassembly and assembly while protecting the top of the foundation pile body. The installation is convenient and quick, saving manpower and time. In addition, it also saves prefabrication time and manpower.

[0013] The left end of the screw extends to the left side of the rear side of the clamp and is connected to a rotating block. The right end of the screw is internally connected to a movable sleeve that is hinged to the right side of the rear side of the clamp.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) This rapid testing device for the vertical bearing capacity of foundation piles uses two auxiliary supports symmetrically hinged at the bottom of the clamp, and with the guide slider one sliding along the guide groove two and the elastic support of the spring one, the auxiliary supports can repeatedly extend and retract to adapt to the offset movement of the clamp due to the bearing capacity, and can ensure the stability of the clamp when the bearing capacity is too large, thus avoiding deviation in the bearing capacity test of the foundation pile body.

[0016] (2) This rapid testing device for the vertical bearing capacity of the foundation pile can drive the movable sleeve and the hoop connected by the movable sleeve to move closer to another hoop until the top outer periphery of the foundation pile body is clamped. It is convenient to disassemble and assemble, and can protect the top of the foundation pile body well. It is easy and quick to install, saving manpower and time. In addition, it also saves prefabrication time and manpower.

[0017] (3) In this rapid testing device for the vertical bearing capacity of foundation piles, when the height and pressure of the plungers of multiple jacks are adjusted, the guide rod will be moved upward by the cross frame. The guide slider 2 slides along the guide groove 1 to guide and assist, thus playing a guiding role and maintaining the stability and balance of the entire testing device. When the guide rod moves, the toothed rack can drive the gear meshing with it to rotate. When the rotation stops, the expansion of the spring 3 makes the toothed block automatically mesh with the bottom of the gear, thus playing a positioning role and further improving the auxiliary support role of the guide rod. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 3 This is a side view of the connection between the guide rod and the support cylinder of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B;

[0022] Figure 5 This is a top view schematic diagram of the clamp structure of this utility model.

[0023] In the diagram: 1. Foundation pile body; 2. Support frame; 3. Auxiliary support; 4. Guide slide groove one; 5. Lifting cylinder; 6. Support cylinder; 7. Horizontal frame; 8. Protective platform; 9. Jack; 10. Guide slider one; 11. Sleeve; 1101. Guide slide groove two; 12. Spring one; 13. Spring two; 14. Guide support rod; 15. Clamp; 16. Toothed rack; 17. Moving sleeve; 18. Guide slider two; 19. Gear; 20. Shaft; 21. Limiting groove; 22. Fixing block; 23. Spring three; 24. Operating block; 25. Toothed locking block; 26. Limiting slide groove; 27. Limiting slider; 28. Rotating block; 29. ​​Screw. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figure 1-5 This utility model provides an embodiment of a rapid testing device for the vertical bearing capacity of a foundation pile, comprising a foundation pile body 1, an auxiliary support 3, a sleeve 11, and a clamp 15. The upper end of the foundation pile body 1 is fitted with a clamp 15, and the bottom edge of the clamp 15 is symmetrically hinged with an auxiliary support 3. The lower end of the auxiliary support 3 is fitted with a sleeve 11, and the bottom of the sleeve 11 is hinged to the ground. The bottom of the auxiliary support 3 is connected to the bottom inside the sleeve 11 through a spring 12. Guide sliders 10 are connected to both sides of the lower end of the auxiliary support 3. Guide grooves 1101 matching the guide sliders 10 are connected to both sides inside the sleeve 11. The bottom of the clamp 15 is symmetrically hinged with two auxiliary supports 3. With the guide sliders 10 sliding along the guide grooves 1101 and the elastic support of the springs 12, the auxiliary supports 3 can repeatedly extend and retract to adapt to the displacement of the clamp 15 due to the bearing capacity. It can also ensure the stability of the clamp 15 when the bearing capacity is too large, and avoid deviations in the bearing capacity test of the foundation pile body 1.

[0026] The front side of the clamp 15 includes hinged components, and the rear side of the clamp 15 has a threaded screw 29. The left end of the screw 29 extends to the left side of the rear side of the clamp 15 and is connected to a rotating block 28. The right end of the screw 29 is connected to the inside of a movable sleeve 17 hinged to the right side of the rear side of the clamp 15.

[0027] Rotating the screw 29 can drive the movable sleeve 17 and the hoop connected to the movable sleeve 17 to move closer to another hoop until the top outer periphery of the pile body 1 is clamped. This facilitates disassembly and assembly while protecting the top of the pile body 1. The installation is convenient and quick, saving manpower and time. In addition, it also saves prefabrication time and manpower.

[0028] A protective platform 8 is connected to the upper surface of the clamp 15. Jacks 9 are installed at equal intervals on the top of the protective platform 8. A cross frame 7 is connected to the top of the multiple jacks 9. Support frames 2 and guide rods 14 are connected to the bottom of both ends of the cross frame 7. Lifting cylinders 5 are installed at the bottom of the two support frames 2. Support cylinders 6 are fitted on the lower ends of the two guide rods 14. A fixing block 22 is fixed on the front surface of the support cylinder 6. A toothed block 25 is connected to the fixing block 22 through a spring 3 23. The top of the toothed block 25 meshes with the bottom of the gear 19.

[0029] The front and rear sides of the toothed block 25 are respectively connected to the operating block 24 and the limiting slider 27. The front side of the fixed block 22 is connected to the limiting groove 21 that matches the operating block 24. The operating block 24 extends to the front side of the fixed block 22. The rear side inside the fixed block 22 is connected to the limiting groove 26 that matches the limiting slider 27.

[0030] The bottom end of the guide rod 14 is connected to the bottom of the support cylinder 6 through the second spring 13. The two sides of the bottom end of the guide rod 14 are connected to the second guide slider 18. The two sides of the inside of the support cylinder 6 are connected to the first guide groove 4 that matches the second guide slider 18.

[0031] When it is necessary to adjust the height and pressure of the plungers of multiple jacks 9, the guide rod 14 will be affected by the upward movement of the cross frame 7. The guide slider 2 18 slides along the guide groove 1 4 to guide and assist in the sliding, thus playing a guiding role and maintaining the stability and balance of the entire testing device. When the guide rod 14 is moving, the toothed rack 16 can drive the gear 19 that meshes with it to rotate. When the rotation stops, the expansion of the spring 3 23 causes the toothed locking block 25 to automatically mesh with the bottom of the gear 19, which plays a positioning role and further improves the auxiliary support role of the guide rod 14.

[0032] A toothed rack 16 is connected to the front surface of the guide rod 14. A gear 19 is engaged on the front side of the toothed rack 16. The gear 19 extends to the outside of the front side of the support cylinder 6 and is positioned on the front surface of the support cylinder 6 through the shaft 20.

[0033] In this embodiment, rotating the screw 29 can drive the movable sleeve 17 and the hoop connected to the movable sleeve 17 to move closer to another hoop until the top outer periphery of the pile body 1 is clamped, which is convenient for disassembly and assembly and can protect the top of the pile body 1. The bottom of the clamp 15 is symmetrically hinged with two auxiliary supports 3, and with the guide slider 10 sliding along the guide groove 1101 and the elastic support of the spring 12, the auxiliary supports 3 can repeatedly extend and retract to adapt to the offset movement of the clamp 15 due to the load-bearing capacity, and can ensure the stability of the clamp 15 when the load-bearing capacity is too large. When it is necessary to adjust the height and pressure of the plunger of multiple jacks 9, the guide support rod 14 will be affected by the upward movement of the cross frame 7, and the guide slider 18 will slide along the guide groove 4 to play a guiding role.

Claims

1. A device for rapid testing of vertical bearing capacity of a pile, characterized in that, The utility model provides a base pile body (1), auxiliary support (3), sleeve (11) and clamp (15) including, the upper end of base pile body (1) is equipped with clamp (15), the edge of the bottom of clamp (15) is hinged with auxiliary support (3) symmetry, the lower end of auxiliary support (3) is equipped with sleeve (11), the bottom of sleeve (11) is hinged to ground, the bottom of auxiliary support (3) is connected with the bottom in sleeve (11) through spring one (12), the both sides of auxiliary support (3) lower end are connected with guide sliding block one (10), the both sides in sleeve (11) inside are connected with guide sliding groove two (1101) matched with guide sliding block one (10).

2. The rapid test device for vertical bearing capacity of pile according to claim 1, characterized in that: The upper surface of the clamp (15) is connected with a protection platform (8), and the top of the protection platform (8) is equipped with a jack (9) at equal intervals. The top of the plurality of jacks (9) is connected with a horizontal frame (7).

3. The rapid test device for vertical bearing capacity of pile according to claim 2, characterized in that: The bottom of the both ends of the horizontal frame (7) is respectively connected with a support frame (2) and a guide support rod (14). The bottom of the two support frames (2) is equipped with a lifting cylinder (5). The lower end of the two guide support rods (14) is respectively sleeved with a support cylinder (6).

4. The rapid test device for vertical bearing capacity of pile according to claim 3, characterized in that: The bottom end of the guide support rod (14) is connected with the bottom in the support cylinder (6) through a spring (13). The both sides of the bottom end of the guide support rod (14) are connected with guide sliding blocks (18). The both sides in the support cylinder (6) are connected with guide sliding grooves (4) matched with the guide sliding blocks (18).

5. The rapid test device for vertical bearing capacity of pile according to claim 4, characterized in that: The front surface of the guide support rod (14) is connected with a toothed strip (16). The front side of the toothed strip (16) is engaged with a gear (19). The gear (19) extends to the front side of the support cylinder (6) and is positioned on the front surface of the support cylinder (6) through a shaft rod (20).

6. The rapid test device for pile vertical bearing capacity according to claim 5, characterized in that: The front surface of the support cylinder (6) is fixed with a fixed block (22). The fixed block (22) is connected with a toothed clamping block (25) through a spring (23). The top of the toothed clamping block (25) is engaged with the bottom of the gear (19).

7. The rapid test device for pile vertical bearing capacity according to claim 6, characterized in that: The front and back sides of the toothed clamping block (25) are respectively connected with an operation block (24) and a limiting sliding block (27). The front side of the fixed block (22) is connected with a limiting groove (21) matched with the operation block (24). The operation block (24) extends to the front side of the fixed block (22). The back side in the fixed block (22) is connected with a limiting sliding groove (26) matched with the limiting sliding block (27).

8. The rapid test device for vertical bearing capacity of pile according to claim 2, characterized in that: The front side of the clamp (15) includes mutually hinged components. A screw rod (29) penetrates the back side of the clamp (15). The left end of the screw rod (29) extends to the left side of the back side of the clamp (15) and is connected with a rotating block (28). The right end of the screw rod (29) is connected with the inside of a moving sleeve (17) hingedly arranged in the right side of the back side of the clamp (15).

Images