Foundation pile high strain detection equipment

Abstract

The utility model discloses a foundation pile high strain detection device, comprising a mounting rack, the top of the mounting rack is provided with an outer shell, two sides of one end in the outer shell are symmetrically connected with gears in a fixed-axis rotation manner, one side of one end of the outer shell is provided with a servo motor, a rack is engaged between the two groups of gears, and the rack is provided with a clamping groove. The bottom of the rack extends into the mounting frame and is provided with a connecting rod, a pressing plate is arranged at the bottom of the connecting rod, multiple sets of balancing weights are arranged at the top of the pressing plate, and inserting holes are symmetrically formed in the two sides of each balancing weight; according to the utility model, under the cooperation of the balancing weight, the rack, the outer shell, the gear, the mounting pipe, the sliding hole and the insertion rod, the condition of the balancing weight can be adjusted at any time in the detection process, the adjustment operation is simple and convenient, the adjustment efficiency is effectively improved, and in the falling process, linear downward movement of the balancing weight can be ensured, and the balancing weight is prevented from deviating in the falling process.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation installation detection, in particular to a high-strain detection device for foundation piles. Background Art

[0002] High strain testing is a testing method for determining the vertical compressive bearing capacity and pile integrity of a single pile. During the experiment, a heavy hammer is used to impact the top of the pile, and the velocity and force time history curves at the top of the pile are measured, which are then analyzed using wave theory.

[0003] The existing authorization publication number is "CN217174954U", which is a pile foundation high strain detection device, comprising a frame, a driving assembly is arranged on the frame, a hammer is arranged on the side of the driving assembly away from the frame, and guide assemblies are arranged on both side walls of the frame, the guide assemblies include guide rods and limit blocks, the side walls of the frame are provided with guide grooves along the height direction, the guide rods are arranged in the guide grooves, one side of the limit block is connected to the hammer, and the other side of the limit block is provided with a limit hole, the guide rod is inserted in the limit hole, and the limit block is slidably connected to the guide rod. The present application has the effect of ensuring the accurate falling position of the heavy hammer.

[0004] Sometimes, in order to detect the ultimate bearing capacity of the pile, it is necessary to constantly change the counterweight of the hammer. However, the weight of the counterweight hammer of the device is fixed, and only a single weight can be tested during the detection process, which affects the detection effect. Utility Model Content

[0005] The purpose of the utility model is to provide a high strain detection device for pile foundations to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strain detection device for pile foundation, comprising a mounting frame, an outer shell is provided on the top of the mounting frame, gears are symmetrically connected to the fixed axis rotation on both sides of one end of the outer shell, a servo motor is provided on one side of one end of the outer shell, a rack is meshed between the two groups of gears, the bottom of the rack extends to the interior of the mounting frame and is provided with a connecting rod, a pressure plate is provided at the bottom of the connecting rod, a plurality of groups of counterweights are provided on the top of the pressure plate, sockets are symmetrically provided on both sides of the counterweights, a mounting tube is provided on the top of the mounting frame, the counterweights are located inside the mounting tube, a plurality of groups of sliding holes are symmetrically provided on both sides of the mounting tube, and a plug rod is provided inside the sliding hole.

[0007] Preferably, an outer plate is provided on the outer side of the pressure plate, guide rods are symmetrically provided on both sides of the top of the outer plate, guide tubes are provided on the outer side of the guide rods, the guide tubes are connected to the mounting frame, and a limit plate is provided on the top of the guide rods. During the hammering process, it can effectively ensure that the pressure plate can move in a straight line to prevent displacement due to impact force during the hammering process.

[0008] Preferably, connecting plates are symmetrically provided on both sides of the bottom of the mounting frame, and tracks are provided inside the connection to facilitate the movement of the device in the mud of the construction site so that it can adapt to the environment of use.

[0009] Preferably, a mounting hole is provided between the outer shell and the mounting frame, and the bottom of the rack extends to the inside of the mounting frame through the mounting hole to facilitate connection.

[0010] Preferably, a motor compartment is provided on the outside of the servo motor, and a silencer is provided on the inside of the motor compartment to protect the servo motor and reduce the noise generated by it.

[0011] Preferably, a through hole is provided at one end of the outer shell, and the connecting shaft of the gear extends through the through hole to the outside of the outer shell and is connected to the output end of the servo motor, so that the servo motor can drive the gear to rotate.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the high strain detection equipment of the foundation pile;

[0013] Through the cooperation of the counterweight block, rack, outer shell, gear, mounting tube, sliding hole and plug rod, the counterweight can be adjusted at any time during the detection process, and the adjustment operation is simple, which effectively improves the efficiency of the adjustment. In addition, during the falling process, it can also ensure that it moves downward in a straight line to prevent it from deflecting during the falling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a front cross-sectional view of the utility model;

[0016] Figure 3 It is the front view of the utility model.

[0017] In the figure: 1. mounting frame; 2. connecting rod; 3. outer plate; 4. insertion hole; 5. guide rod; 6. guide tube; 7. counterweight; 8. track; 9. rack; 10. outer shell; 11. gear; 12. mounting tube; 13. sliding hole; 14. insertion rod; 15. pressure plate; 16. servo motor. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-3 , the utility model provides an embodiment: a detection device for high strain of foundation piles, including a mounting frame 1, two sides of the bottom of the mounting frame 1 are symmetrically provided with connecting plates, and the inside of the connection is provided with crawlers 8, which is convenient for the device to move in the mud of the construction site and adapt to the use environment, an outer shell 10 is provided on the top of the mounting frame 1, and two sides of one end of the inner shell 10 are symmetrically connected with a fixed axis rotation with a gear 11, and one side of one end of the outer shell 10 is provided with a servo motor 16, and one end of the outer shell 10 is provided with a through hole, and the connecting shaft of the gear 11 extends to the outside of the outer shell 10 through the through hole and is connected to the output end of the servo motor 16. The outside of the servo motor 16 is provided with a motor compartment, and the inside of the motor compartment is provided with a silencer cotton to protect the servo motor 16 and reduce the noise generated by it. A rack 9 is meshed between the two sets of gears 11, and a mounting hole is provided between the outer shell 10 and the mounting frame 1, and the bottom of the rack 9 extends to the inside of the mounting frame 1 through the mounting hole, which is convenient for connection;

[0020] The bottom of the rack 9 extends to the interior of the mounting frame 1 and is provided with a connecting rod 2, a pressure plate 15 is provided at the bottom of the connecting rod 2, an outer plate 3 is provided on the outer side of the pressure plate 15, guide rods 5 are symmetrically provided on both sides of the top of the outer plate 3, a guide tube 6 is provided on the outer side of the guide rod 5, the guide tube 6 is connected to the mounting frame 1, and a limit plate is provided on the top of the guide rod 5. During the hammering process, it can effectively ensure that the pressure plate 15 can move in a straight line to prevent it from being offset due to the impact force during the hammering process. A plurality of groups of counterweight blocks 7 are provided on the top of the pressure plate 15, and sockets 4 are symmetrically provided on both sides of the counterweight blocks 7. A mounting tube 12 is provided on the top of the mounting frame 1, and the counterweight blocks 7 are located inside the mounting tube 12. A plurality of groups of sliding holes 13 are symmetrically provided on both sides of the mounting tube 12, and an insertion rod 14 is provided inside the sliding hole 13.

[0021] Working principle: During the detection process, if the counterweight needs to be adjusted, first pull the pressure plate 15 to the highest point. At this time, the outer plate 3 is against the mounting tube 12, so that the outer plate 3 and the pressure plate 15 cannot move up, and then insert it into the designated sliding hole 13 to limit the counterweight block 7 at one location. When moving downward, all the counterweight blocks 7 located above the counterweight block 7 here are restricted and cannot move downward. At this time, turn off the servo motor 16. At this time, the pressure plate 15, the outer plate 3, the connecting rod 2, the counterweight block 7 and the rack 9 move downward under the influence of gravity. The pressure plate 15 impacts the foundation pile through its own gravity, and then performs detection. In the process of moving downward, the rack 9 can ensure the stability of the downward movement under the action of the outer shell 10 to prevent displacement.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] 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 or a detachable 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.

Claims

1. A pile foundation high strain detection device, comprising a mounting frame (1), characterized in that: An outer shell (10) is provided at the top of the mounting frame (1), and gears (11) are symmetrically connected to fixed axes on both sides of one end of the outer shell (10), and a servo motor (16) is provided on one side of one end of the outer shell (10). A rack (9) is meshed between the two sets of gears (11), and the bottom of the rack (9) extends to the inside of the mounting frame (1) and is provided with a connecting rod (2). A pressure plate (15) is provided at the bottom of the connecting rod (2), and a plurality of groups of counterweights (7) are provided at the top of the pressure plate (15). Plug holes (4) are symmetrically provided on both sides of the counterweights (7). A mounting tube (12) is provided at the top of the mounting frame (1), and the counterweights (7) are located inside the mounting tube (12). A plurality of groups of sliding holes (13) are symmetrically provided on both sides of the mounting tube (12), and a plug rod (14) is provided inside the sliding hole (13).

2. The high strain detection device for pile foundation according to claim 1 is characterized in that: An outer plate (3) is provided on the outer side of the pressure plate (15), guide rods (5) are symmetrically provided on both sides of the top of the outer plate (3), a guide tube (6) is provided on the outer side of the guide rod (5), the guide tube (6) is connected to the mounting frame (1), and a limit plate is provided on the top of the guide rod (5).

3. The high strain detection device for pile foundation according to claim 1 is characterized in that: Connecting plates are symmetrically provided on both sides of the bottom of the mounting frame (1), and tracks (8) are provided inside the connection.

4. The high strain detection device for pile foundation according to claim 1 is characterized in that: A mounting hole is provided between the outer shell (10) and the mounting frame (1), and the bottom of the rack (9) extends to the interior of the mounting frame (1) through the mounting hole.

5. The high strain detection device for pile foundation according to claim 1 is characterized in that: A motor compartment is provided on the outside of the servo motor (16), and silencer cotton is provided on the inside of the motor compartment.

6. The high strain detection device for pile foundation according to claim 1 is characterized in that: A through hole is provided at one end of the outer shell (10), and the connecting shaft of the gear (11) extends through the through hole to the outside of the outer shell (10) and is connected to the output end of the servo motor (16).

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