Low strain detector applied to foundation detection

Abstract

The utility model provides a low strain detector applied to foundation detection, and relates to the engineering supervision equipment technical field, the low strain detector comprises a base plate and a detection assembly, the top end of the base plate is provided with a detector mounting hole, one side of the detector mounting hole is provided with a driving hammer mounting hole, the detection assembly is arranged above the base plate, and the driving hammer mounting hole is arranged above the detection assembly. The detection assembly comprises a driving hammer assembly, an electromagnetic assembly and a power supply assembly, the driving hammer assembly is arranged on the inner side of the driving hammer mounting hole, and the electromagnetic assembly is arranged on the outer side of the driving hammer assembly. According to the mechanism, the magnetic core steel ball can be controlled to run in the inner groove by generating a magnetic field, the magnetic core hammer head is impacted by the magnetic core steel ball to generate vibration so as to detect a pile foundation, the magnetic core steel ball is not in direct contact with the ground, so that abrasion caused by long-term use is avoided, and meanwhile, the uniformity of the impact strength of each time can be ensured by controlling impact through the magnetic field.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering supervision equipment, in particular to a low-strain detector used for foundation detection. Background Art

[0002] Low-strain detectors play a key role in foundation testing, helping engineers monitor tiny deformations of soil or rock to assess the stability and safety of foundation structures. This type of detector is often used to measure tiny deformations in the foundation.

[0003] After searching, the patent number "CN219973314U" mentioned in the text that "a low-strain detector used for foundation detection, including a workbench, a connecting column and a fixed seat, the upper surface of the workbench is fixedly connected with a low-strain detector, the low-strain detector is an RSM-PRT (N) pile low-strain detector, the upper end of the low-strain detector is fixedly connected with a data wire, the head of the data wire is fixedly connected with an accelerometer, the inside of the connecting column is fixedly connected with a spring, the upper end of the spring is fixedly connected with a piston, the upper end of the piston is fixedly connected with a push rod, the head of the push rod is fixedly connected to the workbench, and the lower end of the connecting column is fixedly connected with a fixed block. Through the above structure, the vibration generated by it is effectively absorbed, thereby ensuring the accuracy of the detection, avoiding errors caused by vibration force, and being able to automatically reciprocate and knock it to ensure that the knocking force is the same, thereby obtaining accurate data and saving manpower." The device uses a mechanical structure for knocking. As the mechanical structure wears over time, the knocking force will become unstable.

[0004] Therefore, we provide a low-strain detector for foundation detection to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a low-strain detector used for foundation detection, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a low strain detector for foundation detection, comprising a bottom plate and a detection assembly, a detector mounting hole is provided at the top of the bottom plate, a hammer mounting hole is provided on one side of the detector mounting hole, and a detection assembly is provided above the bottom plate;

[0007] The detection component includes a hammer component, an electromagnetic component and a power supply component. The hammer component is arranged on the inner side of the hammer mounting hole, the electromagnetic component is arranged on the outer side of the hammer component, and the power supply component is arranged on the outer side of the electromagnetic component.

[0008] Preferably, the hammer assembly includes an inner cylinder, an inner groove, a magnetic core steel ball and a magnetic core hammer head, the inner wall of the hammer mounting hole is fixedly connected to the inner cylinder, the inner side of the inner cylinder is provided with an inner groove, the interior of the inner groove is slidably connected with a magnetic core steel ball, and the bottom end of the inner groove is provided with a magnetic core hammer head.

[0009] Preferably, the electromagnetic assembly includes an electromagnetic rail, a terminal and a circuit converter. The electromagnetic rail is arranged on the outer side of the inner cylinder, the top end of the electromagnetic rail is fixedly connected to the terminal, and the circuit converter is arranged above the terminal.

[0010] Preferably, the circuit converter comprises a support plate, a motor and a wiring turntable, the top end of the terminal post is fixedly connected to the support plate, the top end of the support plate is fixedly connected to the motor, and the rotating shaft of the motor is fixedly connected to the wiring turntable.

[0011] Preferably, the power supply assembly includes a battery and a transformer, the battery is disposed on one side of the electromagnetic guide rail, and the transformer is disposed on one side of the battery.

[0012] Preferably, a supporting mechanism is provided below the base plate, and the supporting mechanism includes a lower boss, a threaded hole, a screw and a foot support. The bottom end of the base plate is fixedly connected to the lower boss, a threaded hole is provided on the surface of the lower boss, a screw is provided on the inner side of the threaded hole, and the bottom end of the screw is fixedly connected to the foot support.

[0013] Preferably, a detector is provided on the inner side of the detector mounting hole, and the detector is electrically connected to the battery.

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

[0015] 1. Through the setting of the detection component, when in use, through the setting of the electromagnetic guide rail, the mechanism can control the operation of the magnetic core steel ball in the inner groove by generating a magnetic field, and create vibration by the impact of the magnetic core steel ball on the magnetic core hammer head to detect the pile foundation. The magnetic core steel ball does not directly contact the ground to avoid wear caused by long-term use. At the same time, the impact can be controlled by the magnetic field to ensure the uniformity of the impact force each time.

[0016] 2. Through the setting of the supporting mechanism, when in use, through the cooperation of the threaded hole and the screw, the staff can adjust the distance between the foot support and the lower boss and then adjust the distance between the base plate and the working plane to ensure that the equipment obtains a stable working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the bottom plate structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the support mechanism structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the circuit converter structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the detection component structure of the utility model.

[0022] Numbers in the figure: 1. Base plate; 11. Detector mounting hole; 12. Hammer mounting hole; 2. Detection assembly; 21. Hammer assembly; 211. Inner cylinder; 212. Inner groove; 213. Magnetic core steel ball; 214. Magnetic core hammer head; 22. Electromagnetic assembly; 221. Electromagnetic guide rail; 222. Terminal; 223. Circuit converter; 2231. Support plate; 2232. Motor; 2233. Wiring turntable; 23. Power supply assembly; 231. Battery; 232. Transformer; 3. Support mechanism; 31. Lower boss; 32. Threaded hole; 33. Screw; 34. Foot support; 4. Detector. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1

[0025] See also Figure 1-5 As shown, the utility model provides a technical solution: a low-strain detector used for foundation detection, comprising a bottom plate 1 and a detection assembly 2, a detector mounting hole 11 is provided at the top of the bottom plate 1, a hammer mounting hole 12 is provided on one side of the detector mounting hole 11, and a detection assembly 2 is provided above the bottom plate 1;

[0026] The detection component 2 includes a hammer component 21, an electromagnetic component 22 and a power supply component 23. The hammer component 21 is arranged on the inner side of the hammer mounting hole 12, the electromagnetic component 22 is arranged on the outer side of the hammer component 21, and the power supply component 23 is arranged on the outer side of the electromagnetic component 22.

[0027] Furthermore, the hammer assembly 21 includes an inner cylinder 211, an inner groove 212, a magnetic core steel ball 213 and a magnetic core hammer head 214. The inner wall of the hammer mounting hole 12 is fixedly connected to the inner cylinder 211, the inner side of the inner cylinder 211 is provided with an inner groove 212, the inner part of the inner groove 212 is slidably connected with the magnetic core steel ball 213, and the bottom end of the inner groove 212 is provided with a magnetic core hammer head 214. Through the setting of the hammer assembly 21, the mechanism can stably generate shock waves.

[0028] Furthermore, the electromagnetic component 22 includes an electromagnetic guide rail 221, a terminal 222 and a circuit converter 223. The electromagnetic guide rail 221 is arranged on the outer side of the inner cylinder 211, the top of the electromagnetic guide rail 221 is fixedly connected to the terminal 222, and the circuit converter 223 is arranged above the terminal 222. Through the setting of the electromagnetic component 22, the mechanism can control the movement of the magnetic core steel ball 213.

[0029] Furthermore, the circuit converter 223 includes a support plate 2231, a motor 2232 and a wiring turntable 2233. The top of the terminal 222 is fixedly connected to the support plate 2231, the top of the support plate 2231 is fixedly connected to the motor 2232, and the rotating shaft of the motor 2232 is fixedly connected to the wiring turntable 2233. Through the setting of the circuit converter 223, the mechanism can convert the current direction in the electromagnetic guide rail 221 and thus change the direction of the magnetic field.

[0030] Furthermore, the power supply component 23 includes a battery 231 and a transformer 232. The battery 231 is arranged on one side of the electromagnetic guide rail 221, and the transformer 232 is arranged on one side of the battery 231. Through the arrangement of the power supply component 23, the mechanism can supply power to the electromagnetic component 22 and the detector 4.

[0031] Embodiment 2

[0032] See also Figure 1-3 As shown, compared with Example 1, as another implementation of the utility model, a supporting mechanism 3 is arranged below the base plate 1, and the supporting mechanism 3 includes a lower boss 31, a threaded hole 32, a screw 33 and a foot support 34. The bottom end of the base plate 1 is fixedly connected with the lower boss 31, and a threaded hole 32 is provided on the surface of the lower boss 31. A screw 33 is provided on the inner side of the threaded hole 32, and the bottom end of the screw 33 is fixedly connected with the foot support 34. Through the setting of the supporting mechanism 3, the mechanism provides stable support for the device.

[0033] Furthermore, a detector 4 is provided inside the detector mounting hole 11 , and the detector 4 is electrically connected to the battery 231 . By providing the detector 4 , the mechanism can inspect the internal structure of the pile foundation by detecting the seismic wave.

[0034] Working principle, first, a low strain detector used for foundation detection is moved to the working position, the first step is to rotate the foot support 34 to adjust the distance between each foot support 34 and the lower boss 31, the second step, the motor 2232 controls the wiring head 2233 to contact the terminal 222, the third step, the electromagnetic guide rail 221 channel generates a magnetic field, the magnetic core steel ball 213 and the magnetic core hammer 214 are sucked up, the fourth step, the motor 2232 controls the wiring head 2233 to reverse, and the wiring head 2233 contacts the other end terminal 222, the fifth step, the magnetic field generated by the electromagnetic guide rail 221 is reversed, and the magnetic core steel ball 213 and the magnetic core hammer 214 are controlled to accelerate the fall, hit the pile foundation to generate shock waves, the sixth step, the shock wave is transmitted to the bottom end of the pile foundation to generate rebound, and the rebound shock wave is received by the detector 4, and the detector 4 determines whether the pile foundation is qualified based on the shock wave, thus completing the use process of a low strain detector used for foundation detection.

Claims

1. A low-strain detector for foundation detection, comprising a base plate (1) and a detection component (2), characterized in that: A detector mounting hole (11) is provided at the top of the bottom plate (1), a hammer mounting hole (12) is provided on one side of the detector mounting hole (11), and a detection component (2) is provided above the bottom plate (1); The detection component (2) comprises a hammer component (21), an electromagnetic component (22) and a power supply component (23); the hammer component (21) is arranged on the inner side of the hammer mounting hole (12); the electromagnetic component (22) is arranged on the outer side of the hammer component (21); and the power supply component (23) is arranged on the outer side of the electromagnetic component (22).

2. A low strain detector for foundation detection according to claim 1, characterized in that: The hammer assembly (21) comprises an inner cylinder (211), an inner groove (212), a magnetic core steel ball (213) and a magnetic core hammer head (214); the inner wall of the hammer mounting hole (12) is fixedly connected with the inner cylinder (211); an inner groove (212) is provided on the inner side of the inner cylinder (211); a magnetic core steel ball (213) is slidably connected inside the inner groove (212); and a magnetic core hammer head (214) is provided at the bottom end of the inner groove (212).

3. A low strain detector for foundation detection according to claim 2, characterized in that: The electromagnetic assembly (22) comprises an electromagnetic guide rail (221), a terminal (222) and a circuit converter (223); the electromagnetic guide rail (221) is arranged on the outer side of the inner cylinder (211); the top end of the electromagnetic guide rail (221) is fixedly connected to the terminal (222); and the circuit converter (223) is arranged above the terminal (222).

4. A low strain detector for foundation detection according to claim 3, characterized in that: The circuit converter (223) comprises a support plate (2231), a motor (2232) and a wiring turntable (2233); the top end of the terminal (222) is fixedly connected to the support plate (2231); the top end of the support plate (2231) is fixedly connected to the motor (2232); and the rotating shaft of the motor (2232) is fixedly connected to the wiring turntable (2233).

5. The low strain detector for foundation detection according to claim 3, characterized in that: The power supply component (23) comprises a battery (231) and a transformer (232); the battery (231) is disposed on one side of the electromagnetic guide rail (221); and the transformer (232) is disposed on one side of the battery (231).

6. The low strain detector for foundation detection according to claim 1, characterized in that: A support mechanism (3) is arranged below the base plate (1), and the support mechanism (3) comprises a lower boss (31), a threaded hole (32), a screw rod (33) and a foot support (34). The lower end of the base plate (1) is fixedly connected to the lower boss (31), a threaded hole (32) is provided on the surface of the lower boss (31), a screw rod (33) is arranged inside the threaded hole (32), and the lower end of the screw rod (33) is fixedly connected to the foot support (34).

7. The low strain detector for foundation detection according to claim 1, characterized in that: A detector (4) is arranged inside the detector mounting hole (11), and the detector (4) is electrically connected to the battery (231).

Images