Three-dimensional ground penetrating radar antenna towing device with buffering function

Abstract

A three-dimensional ground penetrating radar antenna towing device with a buffering function relates to the technical field of road administration detection and comprises a towing rack fixedly matched with a detection vehicle, a three-dimensional ground penetrating radar antenna towed by the towing rack and contacted with a bottom surface to be detected, and a buffering mechanism arranged between the three-dimensional ground penetrating radar antenna and the towing rack. The design of the protection buffer mechanism effectively absorbs and relieves impact and vibration from the ground, protects the expensive and precise three-dimensional ground penetrating radar antenna, and prolongs the service life of the three-dimensional ground penetrating radar antenna.

Description

Technical Field

[0001] The utility model relates to the technical field of road administration detection, in particular to a three-dimensional ground penetrating radar antenna towing device with a buffering function. Background Art

[0002] China currently boasts the world's largest and most diverse road network. The density of this network continues to increase annually, along with growing traffic volume and the increasing workload associated with road maintenance. Three-dimensional ground-penetrating radar (GPR), a novel nondestructive testing device based on the principles of electromagnetic wave propagation, can be used for detection and identification of existing roads, visualizing their health. 3D GPR systems can identify various hidden defects within structural layers, such as reflective cracks, interlayer voids, loose structures, and uneven settlement. These defects not only threaten driving safety but also significantly impact the lifespan of roads.

[0003] Currently, the 3D GPR antenna trailer consists of a testing vehicle, a trailer, and a 3D GPR antenna. The trailer is rigidly connected to the testing vehicle and the 3D GPR antenna. When testing on uneven roads, the equipment vibrates, forcing it to slow down and drive slowly, impacting testing efficiency. When driving at a normal speed of 20km / h-80km / h, the lack of shock absorption on uneven surfaces can accelerate instrument damage and reduce its expected service life. Using the trailer as a connection, the RTK locator can only be installed on the array ground-coupled antenna. During the testing process, the antenna contacts the ground, causing the RTK locator to vibrate, impacting positioning accuracy. To further improve testing efficiency, meet the needs of different testing environments, reduce damage to the instrument, and enhance positioning accuracy, there is an urgent need to design a device with a buffering function suitable for the 3D GPR antenna trailer. Utility Model Content

[0004] The purpose of the utility model is to provide a three-dimensional ground penetrating radar antenna towing device with a buffering function to solve the technical problems pointed out in the background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A three-dimensional ground-penetrating radar antenna towing device with a buffering function includes a towing frame fixedly matched with an inspection vehicle, a three-dimensional ground-penetrating radar antenna towed by the towing frame and in contact with a bottom surface to be inspected, and a buffer mechanism arranged between the three-dimensional ground-penetrating radar antenna and the towing frame.

[0007] Furthermore, the towing rack includes a plurality of transverse connecting rods, a longitudinal connecting rod, a vehicle connecting rod arranged on one side of the frame, and a plurality of rotatable pull rods arranged on both sides of the frame to form a frame structure. The upper end of the rotatable pull rod is rotatably connected to the frame, and the lower end is rotatably connected to the buffer mechanism.

[0008] Furthermore, the buffer mechanism includes an upper main structure in an inverted T-shaped structure, the upper main structure includes a horizontally arranged buffer base plate and a hinge seat vertically arranged on the top of the buffer base plate, and the hinge seat is hingedly matched with the lower end of the rotating pull rod;

[0009] Furthermore, two buffer units are symmetrically arranged at the bottom of the buffer base plate, and the buffer unit includes an inner sleeve column vertically fixed to the bottom surface of the buffer base plate and an outer sleeve movably connected to the inner sleeve column. Guide bearings are symmetrically arranged on both sides of the inner sleeve column, and strip slide grooves are correspondingly vertically arranged on both sides of the outer sleeve. The guide bearings are vertically guided and slidably matched with the strip slide grooves, and a buffer spring is arranged between the inner sleeve column and the bottom surface of the outer sleeve.

[0010] Furthermore, the top surface of the three-dimensional ground-penetrating radar antenna is provided with a plurality of hinged plates that cooperate with the buffer mechanism, and the hinged plates are correspondingly provided with hinge holes. The lower part of the outer sleeve of the two buffer units is penetrated by pin holes, and also includes a cross pin. The cross pin sequentially crosses the first pin hole, the hinge hole, and the second pin hole to form a movable connection between the buffer mechanism and the three-dimensional ground-penetrating radar antenna.

[0011] Furthermore, the transverse connecting rod is provided with a socket for installing an RTK locator.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The design of the protective buffer mechanism of the utility model effectively absorbs and alleviates the impact and vibration from the ground, protects the expensive and precise three-dimensional ground penetrating radar antenna, and prolongs its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 This is a schematic structural diagram of the buffer mechanism of the utility model;

[0016] Figure 2It is a schematic diagram of the towing rack and three-dimensional ground penetrating radar antenna of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation of the buffer mechanism of the utility model. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0020] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0022] like Figure 1-3 As shown, a three-dimensional ground penetrating radar antenna towing device with a buffering function includes a towing frame fixedly matched with the inspection vehicle, a three-dimensional ground penetrating radar antenna 16 towed by the towing frame and in contact with the bottom surface to be inspected, and a buffer mechanism arranged between the three-dimensional ground penetrating radar antenna 16 and the towing frame.

[0023] Specifically, as shown in the figure, the towing rack includes a plurality of transverse connecting rods 11, a longitudinal connecting rod 12, a vehicle connecting rod 10 arranged on one side of the frame, and a plurality of rotatable rotating rods 13 arranged on both sides of the frame. The upper end of the rotating rod 13 is rotatably connected to the frame, and the lower end is rotatably connected to the buffer mechanism.

[0024] Specifically, as shown in the figure, the buffer mechanism includes an upper main structure in an inverted T-shaped structure, the upper main structure includes a horizontally arranged buffer base plate 2, and a hinge seat 1 vertically arranged on the top of the buffer base plate 2, the hinge seat 1 is hingedly matched with the lower end of the rotating rod 13;

[0025] Two buffer units are symmetrically arranged at the bottom of the buffer base plate 2, and the buffer unit includes an inner sleeve column 3 vertically fixed to the bottom surface of the buffer base plate 2, and an outer sleeve 6 movably sleeved with the inner sleeve column 3. Guide bearings 4 are symmetrically arranged on both sides of the inner sleeve column 3, and strip slide grooves 7 are vertically arranged on both sides of the outer sleeve 6. The guide bearings 4 are vertically guided and slidably matched with the strip slide grooves 7, and a buffer spring 5 is arranged between the inner sleeve column 3 and the bottom surface of the outer sleeve 6.

[0026] Specifically, as shown in the figure, the top surface of the three-dimensional ground penetrating radar antenna 16 is provided with a plurality of hinged plates 17 that cooperate with the buffer mechanism, and the hinged plates 17 are correspondingly provided with hinge holes. The lower part of the outer sleeve 6 of the two buffer units is penetrated by a pin hole 8, and also includes a cross pin 9. The cross pin 9 sequentially crosses the first pin hole, the hinge hole, and the second pin hole to form a movable connection between the buffer mechanism and the three-dimensional ground penetrating radar antenna 16.

[0027] Specifically, as shown in the figure, the transverse connecting rod 11 is provided with a socket 14 for installing an RTK locator.

[0028] Specifically, the specific implementation principle of the utility model is:

[0029] When the inspection vehicle drags the towing frame to perform operations, the rotating pull rod on the towing frame will swing up and down according to the unevenness of the ground. These swings are transmitted to the upper main structure of the buffer mechanism, that is, the buffer base, through the articulated seat.

[0030] The two buffer units at the bottom of the buffer base play a key role in buffering. When subjected to vertical forces, the outer sleeve slides up and down relative to the inner sleeve. During this process, the guide bearing slides within the strip-shaped groove, ensuring smooth and linear sliding. Simultaneously, the buffer spring is compressed or released, absorbing and buffering impact and vibration from the ground, thereby protecting the 3D GPR antenna from damage and ensuring the accuracy and stability of the detection data.

[0031] The three-dimensional ground penetrating radar antenna is connected to the buffer mechanism through a hinge plate. The cross pin passes through the hinge hole and the pin hole, realizing a movable connection between the two, allowing the antenna to be fine-tuned within a certain range to adapt to different detection needs.

[0032] The design of the protective buffer mechanism of the utility model effectively absorbs and alleviates the impact and vibration from the ground, protects the expensive and precise three-dimensional ground penetrating radar antenna, and prolongs its service life.

[0033] Due to the presence of the buffer mechanism, the antenna can remain relatively stable during the detection process, reducing data errors caused by vibration and improving the accuracy and reliability of the detection data.

[0034] The combined design of the rotating pull rod and the buffer mechanism enables the entire towing device to adapt to different terrains and road conditions, thereby improving the adaptability and flexibility of the equipment.

[0035] The structure of the buffer mechanism is relatively simple, and the connection and disassembly between the various components are convenient and quick, making it easy to install and maintain.

[0036] The sockets on the transverse connecting rods can be used to install RTK locators, further improving the accuracy and efficiency of inspection operations and achieving precise positioning and real-time data transmission.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A three-dimensional ground penetrating radar antenna towing device with a buffering function, characterized in that: The invention comprises a towing frame fixedly matched with the detection vehicle, a three-dimensional ground penetrating radar antenna (16) towed by the towing frame and in contact with the bottom surface to be detected, and a buffer mechanism arranged between the three-dimensional ground penetrating radar antenna (16) and the towing frame.

2. The three-dimensional ground penetrating radar antenna towing device with a buffering function according to claim 1, characterized in that: The towing rack comprises a plurality of transverse connecting rods (11) and longitudinal connecting rods (12) forming a frame structure, a vehicle connecting rod (10) arranged on one side of the frame, and a plurality of rotating pull rods (13) rotatably arranged on both sides of the frame, wherein the upper end of the rotating pull rod (13) is rotatably connected to the frame, and the lower end is rotatably connected to the buffer mechanism.

3. The three-dimensional ground penetrating radar antenna towing device with a buffering function according to claim 2, characterized in that: The buffer mechanism comprises an upper main structure in an inverted T-shaped structure, the upper main structure comprising a horizontally arranged buffer base plate (2), and a hinge seat (1) vertically arranged on the top of the buffer base plate (2), the hinge seat (1) being hingedly engaged with the lower end of the rotating pull rod (13); Two buffer units are symmetrically arranged at the bottom of the buffer base plate (2), and the buffer units include an inner sleeve column (3) vertically fixed to the bottom surface of the buffer base plate (2), and an outer sleeve (6) movably sleeved with the inner sleeve column (3) inside and outside. Guide bearings (4) are symmetrically arranged on both sides of the inner sleeve column (3), and strip slide grooves (7) are correspondingly vertically arranged on both sides of the outer sleeve (6). The guide bearings (4) and the strip slide grooves (7) are vertically guided and slidably matched, and a buffer spring (5) is arranged between the inner sleeve column (3) and the bottom surface of the outer sleeve (6).

4. The three-dimensional ground penetrating radar antenna towing device with a buffering function according to claim 3, characterized in that: The top surface of the three-dimensional ground-penetrating radar antenna (16) is provided with a plurality of hinge plates (17) that cooperate with the buffer mechanism, and the hinge plates (17) are correspondingly provided with hinge holes. The lower part of the outer sleeve (6) of the two buffer units is penetrated by a pin hole (8), and also includes a transverse pin (9). The transverse pin (9) sequentially crosses the first pin hole, the hinge hole, and the second pin hole to form a movable connection between the buffer mechanism and the three-dimensional ground-penetrating radar antenna (16).

5. The three-dimensional ground penetrating radar antenna towing device with a buffering function according to claim 4, characterized in that: The transverse connecting rod (11) is provided with a socket (14) for installing an RTK locator.

Images