Model test auxiliary device of ground penetrating radar

Abstract

The utility model relates to the technical field of detection equipment, and particularly discloses a ground penetrating radar model test auxiliary device, which comprises a soil loading box body and a housing seat, the lower part of the housing seat is provided with a sleeving groove matched with the upper end of the soil loading box body, and the housing seat is connected with the upper end of the soil loading box body in a sleeving manner. A driving mechanism, a radar loading platform and an auxiliary moving mechanism are installed at the upper end of the housing base, the housing base is provided with a control panel in electric control connection with the driving mechanism, the middle of the top of the housing base is provided with a concave detection groove, a ground penetrating radar is loaded on the radar loading platform, and the auxiliary moving mechanism is arranged on the radar loading platform. The driving mechanism drives the radar loading platform to longitudinally move back and forth to realize detection. The test arrangement is flexibly adjusted through the special soil box, so that the workload of adjusting the test arrangement is reduced; the detection radar moves at a constant speed through the driving group, so that the stability of test data of the detection radar is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of detection equipment, concretely to a model test auxiliary device of ground penetrating radar. BACKGROUND

[0002] As a non-invasive geological detection technology, ground penetrating radar (GPR) is widely used in the detection of underground cavities, pipelines, cracks and other irregular structures. In practical applications, the detection effect of ground penetrating radar is affected by various factors, such as the complexity of underground media, the polymorphism of underground diseases and the stability of ground penetrating radar equipment. In scientific research, it is often necessary to design appropriate test environment and test device to accurately simulate and evaluate the performance of ground penetrating radar under different conditions, and then accurately identify underground diseases. Research usually needs to set up multiple test groups, and the site required for radar exploration test is large and the site setting is complex, not only the test arrangement cost is high, but also the repeatability and controllability of test data are limited; in addition, the advance of ground penetrating radar equipment depends on manual holding and moving, which is easily disturbed in the moving process, and it is difficult to ensure uniform speed, which easily leads to unstable test results and low repeatability of test results. Therefore, designing an adjustable and controllable model test auxiliary device helps to reduce test cost and improve the test effect and accuracy of ground penetrating radar.

[0003] In addition, the invention patent with publication number CN113671488A discloses an underground hidden defect simulation detection system and a detection method thereof, which comprises: a fan ring tunnel including two pieces of shield tunnel segment; a ground penetrating radar assembly including a radar slide rail and a ground penetrating radar, the radar slide rail being arranged on the inner side of the fan ring tunnel, and the ground penetrating radar being installed on the radar slide rail; a defect simulation assembly located on the outer side of the fan ring tunnel, including a first side wall, a second side wall and a bottom surface, the first side wall, the second side wall, the bottom surface and the fan ring tunnel forming a cavity, the cavity being filled with quartz sand, and a plurality of pipelines being embedded in the quartz sand, the first side wall being away from the cavity being laid with mortar, and the second side wall being provided with a plurality of drill holes; a signal processing assembly for processing radar echo signals received by the ground penetrating radar and determining radar signal characteristics. The invention can accurately analyze the type of hidden defects behind the shield tunnel segment through defect simulation and processing of radar echo signals, and can be widely applied in the field of radar detection technology. Obviously, the focus is on how to construct a test environment that can accurately detect.

[0004] In summary, there is a lack of a detection test device in existing equipment that can stably cycle and detect the soil in the test model box. UTILITY MODEL CONTENT

[0005] The utility model relates to a model test auxiliary device of ground penetrating radar, which realizes stable patrol detection and is convenient for switching between different soil loading boxes.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A model test auxiliary device of ground penetrating radar, which comprises a soil loading box and a cover seat, the lower part of the cover seat is provided with a sleeving groove matched with the upper end of the soil loading box, the cover seat is sleeved on the upper end of the soil loading box, a driving mechanism, a radar loading platform and an auxiliary moving mechanism are installed on the upper end of the cover seat, the cover seat is provided with a control panel electrically connected with the driving mechanism, the top part of the cover seat is provided with a hollow detection groove, the radar loading platform is loaded with a ground penetrating radar, the auxiliary moving mechanism is arranged on the radar loading platform, and the driving mechanism drives the radar loading platform to move longitudinally back and forth to realize detection.

[0008] Preferably, the auxiliary moving mechanism comprises a plurality of longitudinally distributed rollers arranged on the bottom of the radar loading platform, the driving mechanism comprises a driving motor and a screw rod, the radar loading platform is provided with a nut part, the nut part is threadedly sleeved with the screw rod, the driving motor drives the screw rod to rotate, thereby promoting the nut part to move back and forth along the screw rod, and the nut part drives the whole radar loading platform to move.

[0009] Preferably, the detection groove is provided with a roller guide, the roller guide is provided with a roller guide groove upwardly, and the rollers are located in the roller guide groove.

[0010] Preferably, the roller guide is movably arranged at the bottom of the detection groove, the roller guide is provided with fixing plates arranged on the two sides of the detection groove, and the fixing plates are positioned on the cover seat by screwing. The radar loading platform comprises a driving part and a loading part, the driving part and the loading part are partially stacked up and down, the stacking parts are provided with bolt grooves aligned with each other, the bolts are threadedly connected and locked with the nuts below to fix the driving part and the loading part, the driving part and the loading part can be relatively pulled apart or close to each other by loosening the bolts, thereby realizing transverse displacement adjustment of the detection position, and the roller guide moves transversely together with the loading part.

[0011] Preferably, the inner wall of the sleeving groove of the cover seat is provided with a plurality of balls, the balls are arranged on a ball seat, and the rear side of the ball seat is provided with an elastic member.

[0012] Preferably, the soil loading box comprises sub-boxes and plug-in baffles, the sub-boxes and plug-in baffles are made of hard transparent material, both ends of the top and bottom of the sub-box are provided with nesting structure, a plurality of sub-boxes are nested and stacked in multiple levels along the height direction, the bottom of the sub-box is provided with a plug-in groove for inserting the plug-in baffle.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1) The model test auxiliary device for ground penetrating radar provided by the utility model realizes stable and movable support of the radar loading platform by combining the bottom roller, realizes uniform speed running of the ground penetrating radar device, and guarantees the quality of test data;

[0015] 2) The model test auxiliary device for ground penetrating radar provided by the utility model adopts the special sub-box nested stacking combined with the plug-in baffle to form the soil loading box, can more efficiently and conveniently realize soil layer control, can fully set related influencing factors such as soil layering, soil layer thickness and disease depth in soil layer arrangement, improves the flexibility of test arrangement, greatly reduces the workload required for test arrangement adjustment, and reduces test cost.

[0016] 3) In the utility model, the cover seat and the soil loading box adopt a sleeving structure, the inner wall of the sleeving groove of the cover seat is provided with a ball, and the rear side of the ball seat is provided with an elastic element, so that the cover seat can be easily sleeved and separated by relying on the ball, which is convenient for quick switching use between different soil loading boxes based on the needs of exploration test, and because the rear side of the ball is provided with an elastic element, it is beneficial to the relative close fit between the cover seat and the sidewall of the soil loading box (because the ball exists, this close fit does not affect separation), thereby it is beneficial to avoiding the influence of the cover seat on the exploration test effect due to shaking.

[0017] 4) In the utility model, the roller guide is movably arranged at the bottom of the detection groove, the fixing plate is positioned on the cover seat by screwing the stud, and after the bolt on the radar loading platform is loosened, the driving part and the loading part can be relatively pulled apart or close together, and the roller guide moves transversely with the loading part, so that the detection position in the transverse direction can be adjusted, thereby more accurately and comprehensively covering the detection position required by the test. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides a model test auxiliary device for ground penetrating radar.

[0019] Figure 2 The Figure 1 The utility model provides a model test auxiliary device for ground penetrating radar.

[0020] Figure 3 TheFigure 1 Structure sectional view of the matching part of the cover seat and the soil loading box in

[0021] Figure 4 As Figure 2 Schematic view of the cover seat in

[0022] Figure 5 As Figure 4 Schematic view of the cover seat in DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments will be described in detail and clearly in the following with reference to the drawings in the embodiment description of the utility model. In the drawings, the same parts will use the same marks to facilitate understanding. It is particularly pointed out that in the following description, "front", "rear", "left", "right", "upper" and "lower" respectively refer to the corresponding directions in the drawings, and "bottom surface" and "top surface", "inner" and "outer" respectively represent the directions of approaching or moving away relative to the geometric center of a specific part.

[0024] With reference to Figures 1-5 The embodiment of the utility model provides a kind of model test auxiliary device of ground penetrating radar, including soil loading box 1 and cover seat 2, cover seat 2 lower part has with soil loading box 1 upper end matching sleeve joint groove, the cover seat 2 is sleeved in the upper end of the soil loading box 1, driving mechanism, radar loading platform 3 and auxiliary moving mechanism are installed on the upper end of the cover seat 2, driving mechanism includes driving motor 9 and screw rod 8, the radar loading platform 3 is equipped with nut portion 35, nut portion 35 is threadedly sleeved with screw rod 8, the driving motor drives screw rod 8 rotation to further promote nut portion 35 along screw rod 8 back and forth movement, nut portion 35 drives entire the radar loading platform 3 moves, auxiliary moving mechanism includes the multiple longitudinal distribution's gyro wheel 6 being arranged in radar loading platform bottom, the cover seat 2 is equipped with control panel with driving mechanism electric control connection, the cover seat 2 top middle part is equipped with hollow detection groove 4, the radar loading platform 3 is loaded with ground penetrating radar 5, the auxiliary moving mechanism is arranged in radar loading platform 3, the driving mechanism drives radar loading platform longitudinal back and forth movement and realizes detection. In the embodiment, driving mechanism can also adopt the combination of motor drive belt, compared with screw rod drive, it is more stable, and to radar loading platform 3 can be more stable drive and limit.

[0025] With reference to Figure 1 , Figure 4As shown, in order to realize more stable and transversely adjustable guiding, the roller guiding part 7 is arranged in the detection groove, the roller guiding part 7 is upwardly provided with a roller guiding groove 71, and the roller 6 is located in the roller guiding groove 71. The roller guiding part 7 is movably arranged at the bottom of the detection groove 4, both ends of the roller guiding part 7 are provided with fixed plates 72 which are arranged on both sides of the detection groove 4, the fixed plates 72 are screwed and positioned on the shell seat 2 by means of the studs 73, and the surface of the shell seat 2 below the fixed plates 72 is provided with rough parts, which are beneficial to locking; the radar loading platform 3 comprises a driving part 31 and a loading part 32, the driving part 31 and the loading part 32 are partially stacked up and down, and the stacking parts are provided with bolt grooves 33 which are aligned with each other, and the bolts 34 are screwed and connected with the nuts below the bolt grooves 33 to lock and fix the driving part 31 and the loading part 32, the driving part 31 and the loading part 32 can be relatively pulled apart or close to each other by loosening the bolts 34, so that the transverse displacement adjustment of the detection position is realized, and the roller guiding part 7 moves transversely together with the loading part 32.

[0026] Referring to Figure 1 , Figure 3 As shown, in order to facilitate separation and sleeving, the inner wall of the sleeving groove of the shell seat 2 is provided with a ball 21, the ball 21 is arranged on a ball seat 22, and the rear side of the ball seat 22 is provided with an elastic member 23.

[0027] Referring to Figure 1 , Figure 2 As shown, in order to facilitate layered setting and detection observation, the soil loading box 1 comprises a sub-box 11 and a pull-out baffle 12, the sub-box 11 and the pull-out baffle 12 are made of hard transparent material, and the hard transparent material is usually transparent acrylic, both ends of the top and bottom of the sub-box 11 are provided with a nesting structure, a plurality of sub-boxes 11 are nested and stacked in multiple layers along the height direction, and the bottom of the sub-box 11 is provided with a slot for inserting the pull-out baffle 12. The above statements only represent some preferred examples of the utility model, and do not limit it. Under the overall framework of the utility model, the skilled person in the art has the right to make moderate adjustment to the technical solutions mentioned in the foregoing embodiments, but in the case where no creative labor is made, other various embodiments formed are protected by the utility model. Any equivalent changes made on the basis of the disclosed structure, shape and principle shall be included in the protection scope of the utility model.

Claims

1. An apparatus for assisting a model test of a ground penetrating radar, characterized by: Including the soil loading box (1) and the cover seat (2), the cover seat (2) lower part has the matching sleeve joint groove with the soil loading box (1) upper end, the cover seat (2) sleeve joint in the soil loading box (1) upper end, the cover seat (2) upper end is equipped with drive mechanism, radar loading platform (3) and auxiliary moving mechanism, the cover seat (2) upper is equipped with the control panel with drive mechanism electric control connection, the cover seat (2) top middle part is equipped with hollow detection groove (4), the radar loading platform (3) is loaded with ground penetrating radar (5), the auxiliary moving mechanism is arranged in radar loading platform (3), the drive mechanism drives radar loading platform longitudinal back and forth movement and realizes detection.

2. The model test support device for ground penetrating radar according to claim 1, characterized in that: The auxiliary moving mechanism includes a plurality of longitudinally distributed rollers (6) arranged at the bottom of the radar loading platform, the drive mechanism includes a drive motor and a screw rod (8), the radar loading platform (3) is provided with a nut part (35), the nut part (35) is threadedly connected with the screw rod (8), the drive motor drives the screw rod (8) to rotate, thereby driving the nut part (35) to move back and forth along the screw rod (8), and the nut part (35) drives the entire radar loading platform (3) to move.

3. The model test support apparatus for ground penetrating radar according to claim 2, characterized by: The detection groove is provided with a roller guide (7), the roller guide (7) is provided with a roller guide groove (71) upwardly, and the roller (6) is located in the roller guide groove (71).

4. The model test support apparatus for ground penetrating radar according to claim 3, characterized by: The roller guide (7) is movably arranged at the bottom of the detection groove (4), both ends of the roller guide (7) are provided with fixing plates (72) arranged on both sides of the detection groove (4), and the fixing plates (72) are positioned on the cover seat (2) by means of screw posts (73); the radar loading platform (3) includes a driving part (31) and a loading part (32), the driving part (31) and the loading part (32) are partially stacked up and down, and a bolt groove (33) aligned with each other is arranged at the stacking position, a bolt (34) passes through the bolt groove (33) and is threadedly connected with the nut below to be locked to fix the driving part (31) and the loading part (32), by loosening the bolt (34), the driving part (31) and the loading part (32) can be relatively pulled apart or close to each other, thereby realizing the transverse displacement adjustment of the detection position, and the roller guide (7) moves transversely with the loading part (32).

5. The model test assisting apparatus for ground penetrating radar according to claim 1 or 2 or 3 or 4, characterized in that: The inside wall of the sleeve joint groove of the cover seat (2) is provided with a ball (21), the ball (21) is arranged on a ball seat (22), and the rear side of the ball seat (22) is provided with an elastic member (23).

6. The model test assisting apparatus for ground penetrating radar according to claim 1 or 2 or 3 or 4, characterized in that: The soil loading box (1) includes a sub-box (11) and a pull-out baffle (12), the sub-box (11) and the pull-out baffle (12) are made of hard transparent material, both ends of the top and bottom of the sub-box (11) are provided with a nesting structure, a plurality of sub-boxes (11) are nested and stacked in multiple layers along the height direction, and the bottom of the sub-box (11) is provided with a slot for inserting the pull-out baffle (12).

7. The model test support apparatus for ground penetrating radar according to claim 5, characterized by: The soil loading box (1) comprises sub-boxes (11) and pull-in and pull-out baffles (12), the sub-boxes (11) and the pull-in and pull-out baffles (12) are made of hard transparent materials, both ends of the top and the bottom of the sub-box (11) are provided with a nesting structure, a plurality of sub-boxes (11) are nested and stacked in multiple layers along the height direction, and the bottom of the sub-box (11) is provided with a slot for inserting the pull-in and pull-out baffle (12).

Images