Pile foundation high strain detection device

Abstract

The utility model discloses a high strain detection device for a pile foundation. The high strain detection device comprises a guide rack, an electric translator, a translation guide rail, an electric translation sliding block, a mounting top plate, a steel cable winch, an electric mechanical hook claw, a hook ring, a heavy hammer, a distance sensor, an auxiliary electric lifting rod, an electromagnet, a protective groove and a laser positioner. According to the device, the translation guide rail can be driven by the electric translator to rotate to be matched with the electric translation sliding block and the laser positioner at the bottom of the heavy hammer to position the pile foundation, so that the pile foundation damage caused by eccentric impact of the heavy hammer is effectively avoided, and a plurality of auxiliary electric lifting rods are matched with the distance sensor and the electromagnet to attract and align the heavy hammer from the top; dislocation impact caused by oblique falling of the heavy hammer is effectively avoided, and the high-strain detection accuracy of the pile foundation is improved.

Description

[Technical field]

[0001] The utility model relates to the technical field of pile foundation detection, in particular to the technical field of a pile foundation high strain detection device. [Background technology]

[0002] The basic principle of high strain testing is to first apply an impact force along the axial direction of the pile foundation to make the pile foundation have sufficient penetration, and then measure the resulting pile body particle stress and acceleration response, and determine the vertical compressive bearing capacity and pile body integrity of the single pile through wave theory analysis. At present, in the process of high strain testing, the drop hammer is mostly lifted by a crane or excavator, and the direction cannot be controlled very precisely. In the process of the drop hammer impacting the top of the pile foundation, if it is eccentric, it will cause inaccurate high strain waveforms, and even cause damage to the pile body in severe cases. [Contents of the utility model]

[0003] The purpose of the utility model is to solve the problems in the prior art and propose a high-strain detection device for pile foundations, which can position the pile foundation by driving the translation guide rail to rotate through an electric transfer device in conjunction with an electric translation slider and a laser locator at the bottom of the weight, effectively avoiding damage to the pile foundation caused by eccentric impact of the weight, and adsorbing and adjusting the weight from the top through multiple auxiliary electric lifting rods in conjunction with distance sensors and electromagnets, effectively avoiding dislocation impact caused by the tilted fall of the weight, which is beneficial to improving the accuracy of high-strain detection of pile foundations.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a pile foundation high strain detection device, including a guide frame, an electric translator, a translation guide rail, an electric translation slider, a mounting top plate, a wire rope winch, an electric mechanical hook, a hook ring, a heavy hammer, a distance sensor, an auxiliary electric lifting rod, an electromagnet, a protective groove and a laser locator. The electric translator is arranged at the top center of the guide frame, the bottom end of the output shaft of the electric translator is horizontally installed with a translation guide rail, the bottom of the translation guide rail is installed with a mounting top plate through an electric translation slider, and the bottom center of the mounting top plate is arranged with A wire rope winch, wherein the end of the wire rope of the wire rope winch is connected with an electric mechanical hook, a hook ring is arranged at the top center of the weight, the weight is hung under the electric mechanical hook through the hook ring, the top of the weight is a horizontal plane, a number of distance sensors are evenly arranged around the bottom of the mounting top plate and are vertically downwardly facing the top of the weight, an auxiliary electric lifting rod is arranged on the side of the distance sensor, an electromagnet is installed at the bottom end of the auxiliary electric lifting rod, a protective groove is arranged at the bottom center of the weight, a laser locator is vertically installed in the protective groove.

[0005] Preferably, a protective isolation net is evenly arranged around the outside of the guide frame.

[0006] Preferably, the bottom surface of the mounting top plate and the translation guide rail are parallel to each other, and the translation guide rail and the guide frame do not contact each other.

[0007] Preferably, a universal joint is provided at the connection portion between the auxiliary electric lifting rod and the electromagnet.

[0008] Preferably, a transparent protective cover is provided inside the bottom opening of the protective groove.

[0009] The beneficial effects of the utility model: the utility model combines a guide frame, an electric transposer, a translation guide rail, an electric translation slider, an installation top plate, a wire rope winch, an electric mechanical hook, a hook ring, a distance sensor, an auxiliary electric lifting rod, an electromagnet, a protective groove and a laser locator together, and after experimental optimization, can enable the electric transposer to drive the translation guide rail to rotate and cooperate with the electric translation slider and the laser locator at the bottom of the heavy hammer to position the pile foundation, effectively avoiding damage to the pile foundation caused by eccentric impact of the heavy hammer, and using multiple auxiliary electric lifting rods in conjunction with distance sensors and electromagnets to adsorb and adjust the heavy hammer from the top, effectively avoiding dislocation impact caused by the skewed fall of the heavy hammer, which is beneficial to improving the accuracy of high strain detection of the pile foundation.

[0010] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0011] Figure 1 It is a structural schematic diagram of a pile foundation high strain detection device of the utility model.

[0012] In the figure: 1-guide frame, 2-electric transfer device, 3-translation guide rail, 4-electric translation slider, 5-mounting top plate, 6-cable winch, 7-electric mechanical hook, 8-hook ring, 9-distance sensor, 10-auxiliary electric lifting rod, 11-electromagnet, 12-protective groove, 13-laser locator, 14-weight. [Specific implementation method]

[0013] See also Figure 1The utility model pile foundation high strain detection device comprises a guide frame 1, an electric positioner 2, a translation guide rail 3, an electric translation slider 4, a mounting top plate 5, a wire rope winch 6, an electric mechanical hook 7, a hook ring 8, a distance sensor 9, an auxiliary electric lifting rod 10, a weight 14, an electromagnet 11, a protective groove 12 and a laser locator 13. The electric positioner 2 is arranged at the top center position of the guide frame 1, and the translation guide rail 3 is horizontally installed at the bottom end of the output shaft of the electric positioner 2. The mounting top plate 5 is installed at the bottom of the translation guide rail 3 through the electric translation slider 4. The wire rope winch 6 is arranged at the bottom center position of the mounting top plate 5. The end of the wire rope of the wire rope winch 6 is connected with an electric mechanical hook 7. The top center position of the weight 14 is arranged with a hook ring 8. The weight 14 is hung by the hook ring 8. It is arranged below the electric mechanical hook 7, the top of the weight 14 is a horizontal plane, and a plurality of distance sensors 9 are evenly arranged around the bottom of the mounting top plate 5 and are vertically downwardly facing the top of the weight 14. An auxiliary electric lifting rod 10 is arranged on the side of the distance sensor 9, and an electromagnet 11 is installed at the bottom end of the auxiliary electric lifting rod 10. A protective groove 12 is arranged at the bottom center of the weight 14, and a laser locator 13 is vertically installed in the protective groove 12. A protective isolation net is evenly arranged around the outside of the guide frame 1, the bottom surface of the mounting top plate 5 and the translation guide rail 3 are parallel to each other, and the translation guide rail 3 does not contact the guide frame 1. A universal joint is arranged at the connection part of the auxiliary electric lifting rod 10 and the electromagnet 11, and a transparent protective cover is arranged on the inner side of the bottom opening of the protective groove 12.

[0014] The utility model combines a guide frame 1, an electric indexer 2, a translation guide rail 3, an electric translation slider 4, an installation top plate 5, a wire rope winch 6, an electric mechanical hook 7, a hook ring 8, a distance sensor 9, an auxiliary electric lifting rod 10, an electromagnet 11, a protective groove 12 and a laser locator 13 together, and after experimental optimization, can make the electric indexer 2 drive the translation guide rail 3 to rotate and cooperate with the electric translation slider 4 to move along the translation guide rail 3 and the laser locator 13 at the bottom of the weight 14 to position the pile foundation, effectively avoiding damage to the pile foundation caused by the eccentric impact of the weight 14, and through multiple auxiliary electric lifting rods 10, the distance sensor 9 and the electromagnet 11 to adsorb and adjust the weight 14 from the top, effectively avoiding the dislocation impact caused by the skewed fall of the weight 14, which is beneficial to improving the accuracy of high strain detection of the pile foundation.

[0015] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. Pile foundation high strain detection device, characterized by: The invention comprises a guide frame (1), an electric positioner (2), a translation guide rail (3), an electric translation slider (4), a mounting top plate (5), a wire rope winch (6), an electric mechanical hook (7), a hook ring (8), a distance sensor (9), an auxiliary electric lifting rod (10), a weight (14), an electromagnet (11), a protective groove (12) and a laser locator (13). The guide frame (1) is provided with an electric positioner (2) at the top center position, a translation guide rail (3) is horizontally mounted at the bottom end of the output shaft of the electric positioner (2), a mounting top plate (5) is mounted at the bottom of the translation guide rail (3) through an electric translation slider (4), a wire rope winch (6) is arranged at the bottom center position of the mounting top plate (5), and the wire rope The end of the steel cable of the winch (6) is connected to an electric mechanical hook (7), a hook ring (8) is arranged at the center position of the top of the weight (14), the weight (14) is hung below the electric mechanical hook (7) through the hook ring (8), the top of the weight (14) is a horizontal plane, a plurality of distance sensors (9) are evenly arranged around the bottom of the mounting top plate (5) and are vertically downwardly facing the top of the weight (14), an auxiliary electric lifting rod (10) is arranged on the side of the distance sensor (9), an electromagnet (11) is installed at the bottom end of the auxiliary electric lifting rod (10), a protective groove (12) is arranged at the center position of the bottom of the weight (14), and a laser locator (13) is vertically downwardly installed in the protective groove (12).

2. The pile foundation high strain detection device according to claim 1, characterized in that: A protective isolation net is evenly arranged around the outside of the guide frame (1).

3. The pile foundation high strain detection device according to claim 1, characterized in that: The bottom surface of the mounting top plate (5) and the translation guide rail (3) are parallel to each other, and the translation guide rail (3) and the guide frame (1) do not contact each other.

4. The pile foundation high strain detection device according to claim 1, characterized in that: A universal joint is provided at the connection position between the auxiliary electric lifting rod (10) and the electromagnet (11).

5. The pile foundation high strain detection device according to claim 1, characterized in that: A transparent protective cover is arranged inside the bottom opening of the protective groove (12).

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