Uplift pile firmness detection mechanism

Abstract

The utility model discloses an uplift pile firmness detection mechanism, and relates to the uplift pile technology field, the uplift pile firmness detection mechanism comprises a top plate, four support columns and two bases, the four support columns are fixedly connected to the four corners of the bottom of the top plate, and each base is fixedly connected to the bottoms of the two support columns; the uplift pile firmness detection mechanism comprises a top plate, four supporting columns are arranged at the bottom of the top plate, an adjusting plate is slidably connected among the four supporting columns at the bottom of the top plate, and a synchronizing structure for synchronizing movement of the adjusting plate is arranged at the top of the adjusting plate. Through mutual meshing of a gear and a rack and consistent rotating speed of two synchronous rotating shafts, the overall displacement of the adjusting plate is kept consistent, data errors caused by deformation of the adjusting plate due to non-uniform stress during uplift pile firmness detection are reduced, meanwhile, the height of the adjusting plate is adjusted, and the space height of the bottom of the adjusting plate is adjusted, so that the accuracy of uplift pile firmness detection is improved. And the device is suitable for uplift piles with different heights.

Description

Technical Field

[0001] The utility model relates to the technical field of pull-out piles, in particular to a pull-out pile firmness detection mechanism. Background Art

[0002] The robustness test of pull-out piles is an important engineering practice to ensure the stability of the pile foundation when subjected to upward pull-out force. By applying static pull-out force to the top of the pile and measuring the displacement of the top of the pile, the pull-out capacity of the pile is evaluated.

[0003] For example, the pull-out pile firmness detection mechanism with publication number CN220013795U includes a supporting structure for pull-out detection, on which a detection structure for pile foundation pull-out resistance is arranged, and further includes: a leveling component, which is arranged on the supporting structure, moves along the vertical direction, and is used for adjusting the horizontality of the detection structure; a spacing adjustment component, which is arranged on the detection structure, moves along the vertical direction, and is used for adjusting the spacing of the detection structure. The utility model can indirectly realize the horizontality adjustment of the detection structure by arranging the leveling component on the supporting structure, thereby avoiding uneven pull-out force and improving the accuracy of pull-out detection. At the same time, the spacing adjustment component is arranged on the detection structure, which can make the entire detection structure suitable for use with pile foundations of different heights, thereby improving the practicality of the entire equipment.

[0004] The pull-out pile firmness detection mechanism in the above technical solution adjusts the horizontality of the detection structure through a leveling component to improve the accuracy of the pull-out detection. In actual operation, the ground soil may move or be constructed, and the angle between the upper end of the pull-out pile and the ground is difficult to maintain a vertical state. Therefore, when testing the pull-out piles, data errors may be introduced due to the non-vertical state. Utility Model Content

[0005] The purpose of the utility model is to provide a pull-out pile firmness detection mechanism to solve the problem in the above-mentioned background technology that, during actual operation, the ground soil may move or be constructed, and the angle between the upper end of the pull-out pile and the ground is difficult to maintain a vertical state. Therefore, when the pull-out pile is detected, data errors may be introduced due to the non-vertical state.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-pulling pile firmness detection mechanism, comprising a top plate, a support column, and a base, wherein four support columns are provided, and the four support columns are fixedly connected to the four corners of the bottom of the top plate, and two bases are provided, and each base is fixedly connected to the bottom of two support columns;

[0007] An adjustment plate is slidably connected between the four support columns at the bottom of the top plate, and a synchronization structure for synchronizing the movement of the adjustment plate is arranged on the top of the adjustment plate, the synchronization structure includes a synchronization shaft, and gears are fixedly connected at both ends of the synchronization shaft, and a bevel gear ring is fixedly connected to the outer side of one end of the synchronization shaft, the synchronization structure also includes a transmission shaft, and transmission bevel gears are fixedly connected at both ends of the transmission shaft, and the transmission bevel gears are meshed with the bevel gear ring;

[0008] A fixed column is fixedly connected to the top of the adjustment plate, and the fixed columns are distributed at both ends of the synchronous rotating shaft and the transmission rotating shaft, and the synchronous rotating shaft and the transmission rotating shaft are rotatably connected to the inside of the fixed column, a rack is arranged on the inside of the support column, and the gear is meshed with the rack, and sliding sleeves are fixedly connected to the inside of the four corners of the adjustment plate, and the adjustment plate is slidably connected to the inner sides of the four support columns through the sliding sleeves.

[0009] Preferably, two symmetrically distributed lifting rings are fixedly connected to the top of the top plate, and a motor is fixedly connected to one side of the top of the top plate. A screw rod is fixedly connected to the output end of the motor, and the screw rod extends to the bottom of the top plate until it is rotatably connected to the top of the base. A threaded hole is provided on one side of the adjustment plate, and the motor is threadedly connected to the inside of the threaded hole.

[0010] Preferably, a mounting hole is provided in the middle of the adjustment plate, and a hydraulic rod is fixedly connected inside the mounting hole, the telescopic end of the hydraulic rod is located at the bottom of the adjustment plate, and a clamping structure is fixedly connected to the lower end of the hydraulic rod.

[0011] Preferably, the telescopic end of the hydraulic rod is fixedly connected to a driving block, and the inner side of the lower end of the driving block is rotatably connected to a cross shaft, and the two ends of the cross shaft away from the driving block are rotatably connected to connecting blocks.

[0012] Preferably, the driving block, the cross shaft and the connecting block form a universal joint structure, and a clamping structure for clamping the end of the pull-out pile is provided on the inner side of the lower end of the connecting block.

[0013] Preferably, the clamping structure is provided with a pull rod, and there are two pull rods, and the two pull rods are symmetrically rotatably connected to the inner side of the connecting block, one end of the pull rod away from the connecting block is rotatably connected to the clamping rod, and the two clamping rods are rotatably connected to each other in the middle to form a scissors-shaped structure.

[0014] Preferably, the clamping rod is configured to be L-shaped, and a clamp is rotatably connected to the inner side of one end of the clamping rod away from the pull rod, and a plurality of pressure blocks equidistantly distributed in an annular shape are fixedly connected to the inner side of the clamp.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The pull-out pile firmness detection mechanism is provided with a synchronous structure. When the adjustment plate is deformed due to uneven force, the gear and the rack are meshed with each other and the rotation speed of the two synchronous rotating shafts are kept consistent, so that the overall displacement of the adjustment plate is kept consistent, thereby reducing the data error caused by the deformation of the adjustment plate due to uneven force on the adjustment plate during the pull-out pile firmness detection. At the same time, by adjusting the height of the adjustment plate, the spatial height of the bottom of the adjustment plate is adjusted, so that the device can adapt to pull-out piles of different heights.

[0017] Furthermore, a driving block, a cross shaft and a connecting block are provided to form a universal joint structure, which has good vibration resistance, so that the environment of the construction site reduces the influence on the tensile test, and through the setting of the universal joint, when the firmness of the pull-out pile is tested, the firmness of the pull-out pile can be tested within a certain angle, which is convenient for the position adjustment of the device;

[0018] Furthermore, a clamping structure is provided. As the connecting block moves upward, the connecting block will drive the two pull rods to further reduce the angle. At the same time, the pull rods will further reduce the angle between the clamping rods, thereby further increasing the clamping force of the clamp against pile extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the support column structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the adjustment plate of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the hydraulic rod of the utility model;

[0023] Figure 5 This is a schematic diagram of the cross-axis structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the clamping rod of the utility model.

[0025] In the figure: 1. top plate; 2. support column; 3. base; 4. rack; 5. adjustment plate; 6. sliding sleeve; 7. fixing column; 8. synchronous shaft; 9. gear; 10. bevel gear ring; 11. transmission shaft; 12. transmission bevel gear; 13. threaded hole; 14. mounting hole; 15. hydraulic rod; 16. drive block; 17. cross shaft; 18. connecting block; 19. pull rod; 20. clamping rod; 21. fixture; 22. lifting ring; 23. motor; 24. screw. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In a further preferred embodiment of the present invention, Figure 1 - Figure 6 As shown, the pull-out pile firmness detection mechanism includes a top plate 1, a support column 2, and a base 3. Four support columns 2 are provided, and the four support columns 2 are fixedly connected to the four corners of the bottom of the top plate 1. Two bases 3 are provided, and each base 3 is fixedly connected to the bottom of two support columns 2;

[0028] An adjustment plate 5 is slidably connected between the four support columns 2 at the bottom of the top plate 1, and a synchronization structure for synchronizing the movement of the adjustment plate 5 is provided on the top of the adjustment plate 5, the synchronization structure includes a synchronization shaft 8, and gears 9 are fixedly connected at both ends of the synchronization shaft 8, and a bevel gear ring 10 is fixedly connected to the outer side of one end of the synchronization shaft 8, and the synchronization structure also includes a transmission shaft 11, and transmission bevel gears 12 are fixedly connected at both ends of the transmission shaft 11, and the transmission bevel gears 12 are meshed with the bevel gear ring 10;

[0029] A fixed column 7 is fixedly connected to the top of the adjustment plate 5, and the fixed column 7 is distributed at both ends of the synchronous rotating shaft 8 and the transmission rotating shaft 11, and the synchronous rotating shaft 8 and the transmission rotating shaft 11 are both rotatably connected to the inside of the fixed column 7, a rack 4 is arranged on the inner side of the support column 2, and the gear 9 is meshed with the rack 4, and sliding sleeves 6 are fixedly connected to the inside of the four corners of the adjustment plate 5, and the adjustment plate 5 is slidably connected to the inner sides of the four support columns 2 through the sliding sleeves 6.

[0030] Two symmetrically distributed lifting rings 22 are fixedly connected to the top of the top plate 1, and a motor 23 is fixedly connected to one side of the top of the top plate 1. A screw rod 24 is fixedly connected to the output end of the motor 23, and the screw rod 24 extends to the bottom of the top plate 1 until it is rotatably connected to the top of the base 3. A threaded hole 13 is provided on one side of the adjustment plate 5, and the motor 23 is threadedly connected to the inside of the threaded hole 13.

[0031] A mounting hole 14 is provided in the middle of the adjusting plate 5 , and a hydraulic rod 15 is fixedly connected inside the mounting hole 14 . The telescopic end of the hydraulic rod 15 is located at the bottom of the adjusting plate 5 , and a clamping structure is fixedly connected to the lower end of the hydraulic rod 15 .

[0032] The telescopic end of the hydraulic rod 15 is fixedly connected to a driving block 16 , and the inner side of the lower end of the driving block 16 is rotatably connected to a cross shaft 17 , and the two ends of the cross shaft 17 away from the driving block 16 are rotatably connected to connecting blocks 18 .

[0033] The driving block 16 , the cross shaft 17 and the connecting block 18 form a universal joint structure, and a clamping structure for clamping the end of the pull-out pile is provided on the inner side of the lower end of the connecting block 18 .

[0034] The clamping structure is provided with a pull rod 19, and there are two pull rods 19, and the two pull rods 19 are symmetrically connected to the inner side of the connecting block 18, and the end of the pull rod 19 away from the connecting block 18 is connected to the clamping rod 20, and the two clamping rods 20 are connected to each other in a scissor-shaped structure.

[0035] The clamping rod 20 is configured to be L-shaped, and a clamp 21 is rotatably connected to the inner side of one end of the clamping rod 20 away from the pull rod 19 , and a plurality of pressure blocks equidistantly distributed in an annular shape are fixedly connected to the inner side of the clamp 21 .

[0036] The pull-out pile firmness detection mechanism drives the screw rod 24 to rotate through the motor 23, so that the screw rod 24 rotates inside the threaded hole 13, and the threaded connection between the threaded hole 13 and the screw rod 24 enables the screw rod 24 to drive the adjustment plate 5 to move vertically up and down inside the four support columns 2. When the adjustment plate 5 moves vertically up and down, the adjustment plate 5 will drive the synchronous shaft 8 to move vertically up and down through the fixed column 7. When the synchronous shaft 8 moves up and down, the gear 9 and the rack 4 are meshed with each other, so that the gear 9 drives the synchronous shaft 8 to rotate. At the same time, the synchronous shaft 8 drives the transmission bevel gear 12 to rotate through the bevel gear ring 10, so that the transmission bevel gear 12 drives the transmission shaft 11 to rotate, and the transmission shaft 11 drives the transmission shaft 11 to rotate through the transmission The movable bevel gear 12 drives the other synchronous rotating shaft 8 to rotate, and the transmission is carried out between the two synchronous rotating shafts 8 through the transmission bevel gear 12 and the transmission rotating shaft 11, so that the rotation speeds of the two synchronous rotating shafts 8 are kept consistent. During the operation of the equipment, the adjustment plate 5 needs to withstand a large force. When the adjustment plate 5 is deformed due to uneven force, the mutual engagement of the gear 9 and the rack 4 and the consistency of the rotation speeds of the two synchronous rotating shafts 8 make the overall displacement of the adjustment plate 5 consistent, thereby reducing the data error caused by the deformation of the adjustment plate 5 due to uneven force during the detection of the firmness of the pull-out piles. At the same time, by adjusting the height of the adjustment plate 5, the spatial height of the bottom of the adjustment plate 5 is adjusted, so that the device can adapt to pull-out piles of different heights.

[0037] During the tensile test, the telescopic end of the hydraulic rod 15 contracts, causing the driving block 16 to move upward, and the driving block 16, the cross shaft 17 and the connecting block 18 form a universal joint structure to perform a pull-out pile firmness test on the tensile pile clamped by the clamping structure. The tension of the hydraulic rod 15 is transmitted through the universal joint structure. The universal structure has good vibration resistance, which reduces the impact of the environment on the tensile test at the construction site. In addition, through the setting of the universal joint, when the pull-out pile firmness is tested, the pull-out pile can be tested within a certain angle, which is convenient for adjusting the position of the device.

[0038] First, the two clamps 21 are fitted to both sides of the upper end of the anti-pullout pile, and the hydraulic rod 15 is started to contract at this time. The connecting block 18 is used to drive the connecting block 18 to move upward, while keeping the position of the clamp 21 fixed. The connecting block 18 and the clamp 21 apply opposite forces to the pull rod 19 and the clamping rod 20, so that the angle between the two pull rods 19 is reduced, and the angle between the two clamping rods 20 is reduced at the same time, until the end of the clamping rod 20 away from the pull rod 19 applies a force toward the inside of the two clamps 21, and opposite forces are applied to the anti-pullout pile by the two clamps 21 to clamp the anti-pullout pile. As the connecting block 18 moves upward, the connecting block 18 will drive the angle of the two pull rods 19 to further reduce, and the pull rod 19 will further reduce the angle between the clamping rods 20, thereby further increasing the clamping force of the clamp 21 on the anti-pullout pile.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-pulling pile firmness detection mechanism, comprising a top plate (1), a support column (2), and a base (3), wherein four support columns (2) are provided, and the four support columns (2) are fixedly connected to the four corners of the bottom of the top plate (1); and two bases (3) are provided, and each base (3) is fixedly connected to the bottom of two support columns (2); Features: An adjustment plate (5) is slidably connected between the four support columns (2) at the bottom of the top plate (1), and a synchronization structure for synchronizing the movement of the adjustment plate (5) is provided on the top of the adjustment plate (5), the synchronization structure comprising a synchronization shaft (8), and gears (9) are fixedly connected at both ends of the synchronization shaft (8), and a bevel gear ring (10) is fixedly connected on the outer side of one end of the synchronization shaft (8), and the synchronization structure also comprises a transmission shaft (11), and transmission bevel gears (12) are fixedly connected at both ends of the transmission shaft (11), and the transmission bevel gears (12) are meshed with the bevel gear ring (10); The top of the adjustment plate (5) is fixedly connected with a fixing column (7), and the fixing columns (7) are distributed at both ends of the synchronous rotating shaft (8) and the transmission rotating shaft (11), and the synchronous rotating shaft (8) and the transmission rotating shaft (11) are both rotatably connected inside the fixing column (7), the inner side of the support column (2) is provided with a rack (4), and the gear (9) is meshed with the rack (4), and the four corners of the adjustment plate (5) are fixedly connected with sliding sleeves (6), and the adjustment plate (5) is slidably connected to the inner sides of the four support columns (2) through the sliding sleeves (6).

2. The pull-out pile firmness detection mechanism according to claim 1 is characterized in that: The top of the top plate (1) is fixedly connected to two symmetrically distributed hanging rings (22), and one side of the top of the top plate (1) is fixedly connected to a motor (23), the output end of the motor (23) is fixedly connected to a screw rod (24), and the screw rod (24) extends to the bottom of the top plate (1) until it is rotatably connected to the top of the base (3), and a threaded hole (13) is provided on one side of the adjustment plate (5), and the motor (23) is threadedly connected to the inside of the threaded hole (13).

3. The pull-out pile firmness detection mechanism according to claim 1 is characterized in that: The adjusting plate (5) is provided with a mounting hole (14) in the middle, and a hydraulic rod (15) is fixedly connected inside the mounting hole (14); the telescopic end of the hydraulic rod (15) is located at the bottom of the adjusting plate (5), and the lower end of the hydraulic rod (15) is fixedly connected to a clamping structure.

4. The pull-out pile firmness detection mechanism according to claim 3 is characterized in that: The telescopic end of the hydraulic rod (15) is fixedly connected to a driving block (16), and the inner side of the lower end of the driving block (16) is rotatably connected to a cross shaft (17), and the two ends of the cross shaft (17) away from the driving block (16) are rotatably connected to connecting blocks (18).

5. The pull-out pile firmness detection mechanism according to claim 4 is characterized in that: The driving block (16), the cross shaft (17) and the connecting block (18) form a universal joint structure, and a clamping structure for clamping the end of the anti-pull pile is arranged on the inner side of the lower end of the connecting block (18).

6. The pull-out pile firmness detection mechanism according to claim 5, characterized in that: The clamping structure is provided with a pull rod (19), and two pull rods (19) are provided, and the two pull rods (19) are symmetrically rotatably connected to the inner side of the connecting block (18), and one end of the pull rod (19) away from the connecting block (18) is rotatably connected to a clamping rod (20), and the two clamping rods (20) are rotatably connected to each other in the middle to form a scissor-shaped structure.

7. The pull-out pile firmness detection mechanism according to claim 6, characterized in that: The clamping rod (20) is configured to be L-shaped, and the inner side of one end of the clamping rod (20) away from the pull rod (19) is rotatably connected to a clamp (21), and the inner side of the clamp (21) is fixedly connected to a plurality of pressure blocks equidistantly distributed in an annular shape.

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