Foundation cavity detection device

Abstract

The utility model discloses a foundation cavity detection device, and relates to the technical field of foundation detection. The device comprises a cart, a mounting frame is arranged on the cart, a ground penetrating radar is arranged on the mounting frame, the ground penetrating radar comprises a transmitter, a transmitting antenna, a receiver, a receiving antenna and a data processing system, and a sweeping mechanism and a collecting mechanism are arranged on the cart. The sweeping mechanism comprises two sweeping discs which are rotationally arranged on the cart, and a driving part which acts on the two sweeping discs and drives the two sweeping discs to synchronously and reversely rotate is arranged on the cart. When the ground penetrating radar trolley is used, sundries such as stones or soil blocks on the ground are swept through the sweeping mechanism, the detection result is prevented from being affected, the ground penetrating radar trolley can be suitable for the environment with the poor ground condition, damage to the ground penetrating radar is avoided, meanwhile, the collecting mechanism collects the swept sundries and discharges the collected sundries to the two sides of the trolley, and the trolley is convenient to use. And damage to the ground penetrating radar and injury to workers caused by splashing of the sundries are avoided.

Description

Technical Field

[0001] This application relates to the field of foundation testing technology, specifically to a foundation void detection device. Background Technology

[0002] Foundation refers to the soil or rock mass supporting the foundation of a building. There are two types of foundations: natural foundations and artificial foundations. Natural foundations are natural soil layers that do not require reinforcement, while artificial foundations require reinforcement. To ensure the structural safety of a building, foundation testing is necessary. Common testing methods include geological surveys, in-situ testing, geotechnical engineering surveys, deformation testing, geophysical methods, and non-destructive testing (NDT). NDT uses ultrasonic waves or radar to detect foundation cavities without damaging the foundation structure and is mainly suitable for detecting foundation cavities. However, existing foundation cavity detection devices are affected by poor ground conditions, such as the presence of stones or clods of soil, which can also damage the radar. Therefore, a foundation cavity detection device is proposed. Utility Model Content

[0003] The purpose of this application is to provide a foundation cavity detection device to address the technical problem that poor ground conditions, such as the presence of stones or clods of soil, can affect the detection results and easily damage the radar.

[0004] To achieve the above objectives, this application specifically adopts the following technical solution:

[0005] A foundation cavity detection device includes a trolley with a mounting frame on it. A ground-penetrating radar is mounted on the mounting frame. The ground-penetrating radar includes a transmitter, a transmitting antenna, a receiver, a receiving antenna, and a data processing system. The trolley is equipped with a cleaning mechanism and a collection mechanism. The cleaning mechanism includes two cleaning discs that are rotatably mounted on the trolley. The trolley is equipped with a driving component that acts on the two cleaning discs and drives them to rotate synchronously in opposite directions. The collection mechanism includes a T-shaped housing with two baffles symmetrically arranged on it. A V-shaped guide plate is arranged inside the housing.

[0006] Furthermore, the driving component includes two drive rods that are rotatably mounted on the trolley, the two drive rods being connected by a gear pair, and the drive rods being connected to the sweeping disc by a pulley assembly.

[0007] Furthermore, both the inlet and outlet of the housing are provided with guide ramps.

[0008] Furthermore, the mounting bracket is rotatably mounted on a trolley, and the trolley is equipped with a drive mechanism that acts on the mounting bracket and drives it to swing back and forth.

[0009] Furthermore, the drive mechanism includes a fixed rod mounted on the mounting frame, the fixed rod having a waist hole, a drive disk rotatably mounted on the trolley, and a protrusion eccentrically mounted on the drive disk that slides with the waist hole.

[0010] Furthermore, the trolley is provided with an arc-shaped groove, and the mounting frame is rotatably provided with rollers that roll in cooperation with the arc-shaped groove.

[0011] Furthermore, the mounting bracket is equipped with markers for sprinkling marking powder on the ground.

[0012] Furthermore, the marking element includes a fixed channel and a cylinder push rod both mounted on the mounting frame. A storage box is connected to the fixed channel, and a sealing plate that is inserted into and cooperates with the fixed channel is provided on the movable end of the cylinder push rod.

[0013] The beneficial effects of this application are as follows:

[0014] When in use, this application uses a cleaning mechanism to sweep away debris such as stones or clods of soil on the ground to avoid affecting the detection results. This makes it suitable for environments with poor ground conditions and avoids damage to the ground penetrating radar. At the same time, the collection mechanism collects the debris after cleaning and discharges the collected debris to both sides of the cart to prevent debris from splashing and causing damage to the ground penetrating radar and injury to personnel. Therefore, it is more practical. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural view of this application;

[0016] Figure 2 This is a three-dimensional sectional view of this application;

[0017] Figure 3 This application Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This application Figure 2 Enlarged view of point B in the middle;

[0019] Figure 5 This application Figure 2 Enlarged view of point C in the middle;

[0020] Figure 6 This application Figure 2 Enlarged view of point D in the middle.

[0021] Reference numerals: 1. Trolley; 2. Mounting bracket; 3. Ground penetrating radar; 4. Cleaning disc; 5. Housing; 6. Baffle; 7. Guide plate; 8. Drive rod; 9. Gear pair; 10. Pulley assembly; 11. Fixing rod; 12. Waist hole; 13. Drive disc; 14. Protrusion; 15. Arc groove; 16. Roller; 17. Fixing channel; 18. Cylinder push rod; 19. Storage box; 20. Sealing plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0023] like Figures 1-6As shown in the figure, a ground cavity detection device proposed in an embodiment of the present application includes a trolley 1. An installation frame 2 is provided on the trolley 1, and a ground penetrating radar 3 is provided on the installation frame 2. The ground penetrating radar 3 includes a transmitter, a transmitting antenna, a receiver, a receiving antenna, and a data processing system. The ground penetrating radar 3 is prior art. For example, a detection and warning system for underground holes in urban roads disclosed in the patent publication number CN215986490U. The ground penetrating radar disclosed therein includes a computer system, a radar transmitter, a transmitting antenna, a radar receiver, and a receiving antenna. In the present application, the transmitter, the transmitting antenna, the receiver, the receiving antenna, and the data processing system of the ground penetrating radar 3 respectively correspond to the above-mentioned radar transmitter, transmitting antenna, radar receiver, receiving antenna, and computer system. When the ground penetrating radar 3 works, the transmitter is connected to the data processing system. The transmitter is used to transmit radar wave signals to the transmitting antenna, so that the transmitting antenna emits radar waves. The receiving antenna is used to receive the transmitted radar waves, that is, the echo, and transmit it to the receiver. The receiver processes the radar waves, such as signal conditioning and amplification. The data processing system controls the normal operation of the ground penetrating radar 3, including controlling the transmitter to emit radar waves, controlling the receiver to receive the radar waves received by the receiving antenna, and further processing the received echo signals. For example, by using the radar wave processing software pre-installed with the ground penetrating radar 3, by analyzing and processing the shear wave and longitudinal wave, the geological conditions such as underground cavities and voids are judged accordingly. The transmitter is electrically connected to the data processing system and is controlled by the data processing system to generate radar waves. The working frequency of the radar waves generated by the transmitter is within the range of 10 - 1000 MHz. The radar waves in this frequency band are suitable for detecting geological conditions. The transmitting antenna is electrically connected to the transmitter and is used to transmit the radar waves generated by the transmitter. The transmitting antenna can be a reflector antenna, a lens antenna, a horn antenna, a dielectric antenna, a microstrip antenna, etc. A cleaning mechanism and a collection mechanism are provided on the trolley 1. The cleaning mechanism is used to clean sundries such as stones or soil blocks on the ground. The collection mechanism is used to collect the sundries after cleaning and discharge the collected sundries to both sides of the trolley 1 to prevent the sundries from splashing and causing damage to the ground penetrating radar 3 and injury to the staff. The cleaning mechanism includes two cleaning disks 4 rotatably provided on the trolley 1. The two cleaning disks 4 are spaced apart and are both in contact with and lapped on the ground. A driving member is provided on the trolley 1 and acts on the two cleaning disks 4 to drive them to rotate synchronously and in opposite directions. The collection mechanism includes a housing 5 with a T-shaped structure. The housing 5 is horizontal and fixed on the trolley 1. The housing 5 has an inlet and two relatively distributed outlets. Two baffles 6 are symmetrically provided on the housing 5. The baffles 6 are vertical and fixed at the inlet of the housing 5. An included angle is formed between the two baffles 6. A guide plate 7 with a V-shaped structure is provided inside the housing 5. The guide plate 7 is vertical and fixed inside the housing 5;

[0024] In use, the trolley 1 is driven to move, and the two sweeping discs 4 are driven to rotate synchronously in opposite directions through the drive unit. The two sweeping discs 4 sweep up stones or soil and other debris on the ground together. After sweeping, the debris enters the housing 5 through the inlet due to inertial potential energy. The guide plate 7 guides the debris and discharges it from the housing 5 through the two outlets. This avoids stones or soil and other debris from affecting the detection results of the ground penetrating radar 3 and avoids damage to the ground penetrating radar 3. The ground penetrating radar 3 moves with the trolley 1 and can realize non-contact online detection of cavities, holes, collapses and other situations that may occur under the foundation.

[0025] In summary, when this application is used, the cleaning mechanism sweeps away debris such as stones or clods of soil on the ground to avoid affecting the detection results. This makes it suitable for environments with poor ground conditions and avoids damage to the ground penetrating radar 3. At the same time, the collection mechanism collects the debris after cleaning and discharges the collected debris to both sides of the cart 1 to avoid debris splashing and causing damage to the ground penetrating radar 3 and injury to personnel. Therefore, it is more practical.

[0026] like Figure 3 As shown, in some embodiments, the driving component includes two driving rods 8 that are rotatably mounted on the trolley 1. The two driving rods 8 are both vertical and spaced apart. The two driving rods 8 are connected by a gear pair 9. The gear pair 9 includes two meshing gears. The two gears are respectively fixed on the two driving rods 8. The driving rods 8 are connected to the sweeping disc 4 by a pulley assembly 10. The pulley assembly 10 includes two pulleys and a connecting belt. The two pulleys are respectively fixed on the driving rods 8 and the sweeping disc 4. The connecting belt is wound around the two pulleys.

[0027] Referring to the above, during use, one of the drive rods 8 is driven to rotate, and the two drive rods 8 are driven to rotate synchronously in opposite directions through the gear pair 9. The two drive rods 8 are driven to rotate through the two pulley assemblies 10, so as to drive the two sweeping discs 4 to rotate synchronously in opposite directions.

[0028] like Figures 1-3 As shown, in some embodiments, guide ramps are constructed at both the inlet and outlet of the housing 5;

[0029] Referring to the above, during use, the guide ramp allows the cleaned debris to smoothly enter the housing 5 and smoothly exit the housing 5, preventing debris accumulation.

[0030] like Figure 6 As shown, in some embodiments, the mounting frame 2 is rotatably mounted on the trolley 1, and the trolley 1 is provided with a drive mechanism that acts on the mounting frame 2 and drives it to swing back and forth. The drive mechanism is used to drive the mounting frame 2 to swing back and forth in the horizontal direction.

[0031] Referring to the above, during use, the mounting frame 2 is driven to swing back and forth by the drive mechanism, which drives the ground penetrating radar 3 to move together, thereby increasing the detection range of the ground penetrating radar 3 and improving the detection efficiency.

[0032] like Figure 6 As shown, in some embodiments, the drive mechanism includes a fixed rod 11 mounted on the mounting frame 2. The fixed rod 11 is horizontal and fixed on the mounting frame 2. The fixed rod 11 has a waist hole 12, which is opened along the length of the fixed rod 11. The waist hole 12 has relatively distributed initial points and limit points. The trolley 1 is rotatably mounted on the drive disk 1. The drive disk 13 is horizontal. The drive disk 13 is eccentrically mounted with a protrusion 14 that slides with the waist hole 12. The protrusion 14 is vertical and fixed on the drive disk 13.

[0033] Referring to the above, in the initial state, the protrusion 14 is located at the initial point of the waist hole 12. At this time, the mounting bracket 2 is aligned with the moving direction of the trolley 1. During use, the drive disk 13 is driven to rotate, causing the protrusion 14 to slide back and forth within the waist hole 12. The protrusion 14 first slides to the middle position of the waist hole 12. During this process, the fixed rod 11 and the mounting bracket 2 are driven to rotate together, and the mounting bracket 2 deviates from the moving direction of the trolley 1. Then, the protrusion 14 slides to the limit point of the waist hole 12, driving the fixed rod 11 and the mounting bracket 2 to rotate together, and the mounting bracket 2 is aligned with the moving direction of the trolley 1. Subsequently, the protrusion 14 slides to the middle position of the waist hole 12. During this process, the fixed rod 11 and the mounting bracket 2 are driven to rotate together, and the mounting bracket 2 deviates from the moving direction of the trolley 1. Finally, the protrusion 14 slides to the initial point of the waist hole 12, driving the fixed rod 11 and the mounting bracket 2 to rotate together, and the mounting bracket 2 is aligned with the moving direction of the trolley 1. This process is repeated to drive the mounting bracket 2 to swing back and forth.

[0034] like Figure 5 As shown, in some embodiments, the trolley 1 has an arc-shaped groove 15, which is horizontal and at the same angle as the swing angle of the mounting frame 2. A roller 16 is rotatably mounted on the mounting frame 2, which rolls in cooperation with the arc-shaped groove 15. The roller 16 is vertical.

[0035] Referring to the above, when the mounting frame 2 swings back and forth, the roller 16 slides back and forth in the arc groove 15. Through the cooperation between the arc groove 15 and the roller 16, the mounting frame 2 is supported, improving the stability of use.

[0036] like Figure 4 As shown, in some embodiments, the mounting bracket 2 is provided with a marker for sprinkling marking powder on the ground;

[0037] Referring to the above, when using the device, if a cavity is detected underground, the marker will sprinkle marking powder on the ground to facilitate subsequent treatment of the cavity.

[0038] like Figure 4 As shown, in some embodiments, the marking element includes a fixed channel 17 and a cylinder push rod 18 both disposed on the mounting frame 2. The fixed channel 17 and the cylinder push rod 18 are both fixed on the mounting frame 2. The fixed channel 17 is vertical and the cylinder push rod 18 is horizontal. A storage box 19 is connected to the fixed channel 17. A sealing plate 20 that is inserted into the fixed channel 17 is disposed at the movable end of the cylinder push rod 18. The sealing plate 20 is horizontal and fixed at the movable end of the cylinder push rod 18.

[0039] Referring to the above, in the initial state, the movable end of the cylinder push rod 18 extends, and the sealing plate 20 seals the fixed channel 17. During use, marking powder is added to the storage box 19. If a cavity is detected underground, the movable end of the cylinder push rod 18 is retracted, causing the sealing plate 20 to slide and unblock the fixed channel 17. The marking powder in the storage box 19 falls into the fixed channel 17 and is scattered on the ground. Conversely, the movable end of the cylinder push rod 18 extends, causing the sealing plate 20 to slide and re-seal the fixed channel 17.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ground cavity detection device, comprising a trolley (1), a mounting frame (2) is arranged on the trolley (1), a ground penetrating radar (3) is arranged on the mounting frame (2), the ground penetrating radar (3) comprises a transmitter, a transmitting antenna, a receiver, a receiving antenna and a data processing system, characterized in that, The cart (1) is provided with a cleaning mechanism and a collecting mechanism, the cleaning mechanism comprises two cleaning discs (4) which are rotationally arranged on the cart (1), the cart (1) is provided with a driving member which acts on the two cleaning discs (4) and drives the two cleaning discs (4) to synchronously and reversely rotate, the collecting mechanism comprises a T-shaped shell (5), the shell (5) is symmetrically provided with two baffles (6), and the shell (5) is provided with a V-shaped guide plate (7) in the shell (5).

2. The ground void detection apparatus according to claim 1, characterized by The driving member comprises two driving rods (8) which are rotationally arranged on the cart (1), the two driving rods (8) are transmissionally connected through a gear pair (9), and the driving rod (8) and the cleaning disc (4) are transmissionally connected through a belt pulley assembly (10).

3. The ground void detection apparatus according to claim 1, characterized by The shell (5) is provided with a guide inclined surface at the inlet and the outlet.

4. The ground void detection apparatus according to claim 1, characterized by The mounting frame (2) is rotationally arranged on the cart (1), and the cart (1) is provided with a driving mechanism which acts on the mounting frame (2) and drives the mounting frame (2) to reciprocatingly swing.

5. The ground void detection apparatus according to claim 4, characterized by The driving mechanism comprises a fixed rod (11) arranged on the mounting frame (2), the fixed rod (11) is provided with a waist hole (12), the cart (1) is rotationally provided with a driving disc (13), and the driving disc (13) is eccentrically provided with a protruding block (14) which is in sliding fit with the waist hole (12).

6. The ground void detection apparatus according to claim 4, characterized by The cart (1) is provided with an arc-shaped groove (15), and the mounting frame (2) is rotationally provided with a roller (16) which is in rolling fit with the arc-shaped groove (15).

7. The ground void detection apparatus according to claim 1, characterized by The mounting frame (2) is provided with a marking member which is used for scattering marking powder on the ground.

8. The ground void detection apparatus according to claim 7, characterized by The marking member comprises a fixed channel (17) and a cylinder push rod (18) which are both arranged on the mounting frame (2), the fixed channel (17) is in communication with a storage box (19), and the movable end of the cylinder push rod (18) is provided with a blocking plate (20) which is in plug-in fit with the fixed channel (17).

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