Ground penetrating radar antenna and ground penetrating radar

Abstract

The utility model provides a ground penetrating radar antenna and a ground penetrating radar, and relates to the technical field of radar detection, and the ground penetrating radar antenna comprises an outer shell, a main shell, a first shell, a second shell, a first telescopic antenna main body and a second telescopic antenna main body. A containing through hole is formed in the outer shell. The main shell is installed in the containing through hole and comprises a first cavity and a second cavity. The first shell is movably installed in the first cavity, and the side face of the first shell is concaved inwards to form a third cavity communicated with the first cavity. The second shell is movably installed in the second cavity, and the side face of the second shell is concaved inwards to form a fourth cavity communicated with the second cavity. The first telescopic antenna main body is arranged in the first cavity and the third cavity, and two ends of the first telescopic antenna main body are respectively connected with the main shell and the first shell; the second telescopic antenna body is arranged in the second cavity and the fourth cavity, and the two ends of the second telescopic antenna body are connected with the main shell and the second shell respectively.

Description

Technical Field

[0001] This application relates to the field of radar detection technology, and particularly to a ground penetrating radar antenna and a ground penetrating radar. Background Art

[0002] Ground penetrating radar is a non-destructive detection method that uses an antenna to transmit and receive high-frequency electromagnetic waves to detect the characteristics and distribution laws of substances inside a medium. Taking tunnel construction projects as an example, after the completion of tunnel construction or during subsequent road maintenance, it is necessary to inspect the tunnel floor. Currently, generally, a ground penetrating radar is used to detect road diseases such as cavities, internal cracks, and deformations on the tunnel floor.

[0003] However, since the antennas of existing ground penetrating radars are generally fixed frequency-antenna devices, that is, an antenna with a detection frequency corresponds to a set of independent ground penetrating radar devices. During actual use, it may be necessary to continuously change the detection frequency of electromagnetic waves (in order to achieve a comprehensive detection of the road), then it is necessary to replace different ground penetrating radar antennas (or replace the entire ground penetrating radar device). This process is rather cumbersome and inconvenient to operate, with low detection efficiency. At the same time, when going out to perform detection tasks, it is necessary to carry multiple sets of ground penetrating radar antennas or ground penetrating radar devices, which also has the problem of inconvenient carrying. Utility Model Content

[0004] In order to solve the technical problems in the related art, this application provides a ground penetrating radar antenna and a ground penetrating radar. Through the ground penetrating radar antenna and the ground penetrating radar of this application, it is possible to effectively avoid the problems of cumbersome operation and low detection efficiency caused by replacing different ground penetrating radar antennas. At the same time, it can also solve the problem of inconvenient carrying of multiple sets of ground penetrating radar antennas or ground penetrating radar devices.

[0005] In order to achieve the above object, the technical solutions adopted in this application include:

[0006] According to the first aspect of this application, a ground penetrating radar antenna is provided, including:

[0007] An outer housing for being installed on the bottom of the ground penetrating radar main body, and a receiving through hole penetrating in the horizontal direction is formed inside the outer housing;

[0008] A main housing installed in the receiving through hole. The main housing includes a first cavity and a second cavity. The first cavity and the second cavity are spaced apart from each other along the extending direction of the receiving through hole. One end of the first cavity away from the second cavity extends to the side surface of the main housing to make this end open, and one end of the second cavity away from the first cavity extends to the side surface of the main housing to make this end open;

[0009] The first housing is movably installed in the first cavity. A third cavity is formed by inward depression on the side of the first housing close to the second cavity. The first cavity and the third cavity are in communication with each other.

[0010] The second housing is movably installed in the second cavity. A fourth cavity is formed by inward depression on the side of the second housing close to the first cavity. The second cavity and the fourth cavity are in communication with each other.

[0011] The first telescopic antenna body and the second telescopic antenna body. The first telescopic antenna body is arranged in the first cavity and the third cavity, and both ends of the first telescopic antenna body are respectively connected to the main housing and the first housing; the second telescopic antenna body is arranged in the second cavity and the fourth cavity, and both ends of the second telescopic antenna body are respectively connected to the main housing and the second housing.

[0012] Optionally, a chute running through horizontally is further formed in the outer housing, and the chute is in communication with the accommodation through hole; a first slider and a second slider respectively matching the chute are formed on the first housing and the second housing, and the first slider and the second slider respectively penetrate through the chute, so that the first housing and the second housing can respectively slide along the axial direction of the main housing.

[0013] Optionally, the outer housing further includes a first clamping block and a second clamping block that match each other. The first clamping block is provided in multiple numbers, and the multiple first clamping blocks are arranged at intervals along the axial direction of the accommodation through hole in the chute. The second clamping block is provided in multiple numbers, and the multiple second clamping blocks are respectively arranged on the first slider and the second slider.

[0014] Optionally, the first clamping block is formed into a U-shaped structure. The first clamping block includes a first part and a second part arranged opposite to each other, and a third part connecting the first part and the second part. The first part, the second part and the third part together form an accommodation cavity for accommodating the second clamping block.

[0015] The second clamping block is formed into a semi-cylindrical structure. The flat side surface of the semi-cylindrical structure is connected to the first slider, and the curved side surface of the semi-cylindrical structure protrudes towards the first clamping block.

[0016] Optionally, the side surface of the first part away from the second part is formed into a first curved surface that bends towards the direction close to the second part. The side surface of the second part away from the first part is formed into a second curved surface that bends towards the direction close to the first part. The side surface of the third part close to the second clamping block is formed into a third curved surface that bends away from the second clamping block.

[0017] Wherein, the first curved surface, the second curved surface and the third curved surface are smoothly connected.

[0018] Optionally, the first housing further includes a first manual pull tab, and the first manual pull tab is disposed at an end of the first housing away from the second housing; and / or,

[0019] The second housing further includes a second manual pull tab, and the second manual pull tab is disposed at an end of the second housing away from the first housing.

[0020] Optionally, the first housing further includes a plurality of first marking lines, and the plurality of first marking lines are uniformly spaced along the axial direction of the receiving through hole on the top surface of the first housing; and / or,

[0021] The second housing further includes a plurality of second marking lines, and the plurality of second marking lines are uniformly spaced along the axial direction of the receiving through hole on the top surface of the second housing.

[0022] According to a second aspect of the present application, there is also provided a ground penetrating radar, including a ground penetrating radar main body, a bracket, moving wheels, and a ground penetrating radar antenna according to any one of the technical solutions in the first aspect of the present application. The ground penetrating radar antenna is installed at the bottom of the ground penetrating radar main body, the ground penetrating radar main body is installed on the bracket, and the moving wheels are disposed on the bracket so that the bracket can move under the drive of the moving wheels.

[0023] Optionally, the number of the ground penetrating radar main bodies is six, and the six ground penetrating radar main bodies are divided into three groups in pairs, namely a first group, a second group and a third group. The second group is disposed between the first group and the third group;

[0024] Wherein, the two ground penetrating radar main bodies of the second group are closely disposed, the two ground penetrating radar main bodies of the first group are spaced apart from each other and disposed on both sides of the second group, the two ground penetrating radar main bodies of the third group are spaced apart from each other and disposed on both sides of the second group, and the first group and the third group are symmetrically disposed with respect to the second group.

[0025] Beneficial effects:

[0026] 1. Through the above technical solution, when it is necessary to adjust the electromagnetic wave emission frequency of the antenna, the lengths of the first telescopic antenna body and the second telescopic antenna body can be adjusted by adjusting the positions of the first housing and the second housing relative to the main housing respectively, so as to adjust the electromagnetic wave emission frequency of the antenna (the electromagnetic wave frequency received and transmitted by the antenna is inversely proportional to its length). Compared with the technical solution of replacing other ground penetrating radar antennas (or the whole set of ground penetrating radar equipment) in the existing related technologies, the disassembly and assembly process can be effectively avoided, the complexity of the operation can be simplified, and thus the detection efficiency can be improved. At the same time, precisely because there is no need to replace the ground penetrating radar antenna or the whole set of ground penetrating radar equipment, there is no need to carry multiple sets of ground penetrating radar antennas or ground penetrating radar equipment, thus avoiding the problem of inconvenient carrying of multiple sets of ground penetrating radar antennas or ground penetrating radar equipment.

[0027] 2. Other beneficial effects or advantages of the present application will be described in detail in combination with the specific structure in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts. In addition, it should be understood that the proportional relationships of the various components in the drawings of this specification do not represent the proportional relationships in actual material selection and design. They are only schematic diagrams of the structure or position, where:

[0029] Figure 1 is a schematic three-dimensional structure diagram of a ground penetrating radar provided by an exemplary embodiment of the present application during use, where an engineering vehicle is also shown;

[0030] Figure 2 is a schematic three-dimensional structure diagram of a ground penetrating radar provided by an exemplary embodiment of the present application;

[0031] Figure 3 is a schematic assembly structure diagram of a ground penetrating radar antenna and a ground penetrating radar main body provided by an exemplary embodiment of the present application;

[0032] Figure 4 is a schematic three-dimensional structure diagram of a ground penetrating radar antenna provided by an exemplary embodiment of the present application;

[0033] Figure 5 is a schematic three-dimensional structure diagram of a ground penetrating radar antenna provided by an exemplary embodiment of the present application, where the first housing and the second housing are in a partially pulled-out state;

[0034] Figure 6 FIG. 1 is an exploded view of the structure of a ground penetrating radar antenna provided by an exemplary embodiment of the present application, wherein a part of the top of the main housing is hidden to show the components inside;

[0035] Figure 7 is Figure 6 a schematic enlarged view of the local structure at position A in FIG. 1;

[0036] Figure 8 FIG. 3 is a schematic three-dimensional structure diagram of a first clamping block provided by an exemplary embodiment of the present application;

[0037] Figure 9 FIG. 4 is a schematic diagram of a partially sectioned structure of a ground penetrating radar antenna provided by an exemplary embodiment of the present application.

[0038] Explanation of reference numerals in the drawings:

[0039] 100 - ground penetrating radar antenna; 200 - ground penetrating radar; 201 - ground penetrating radar main body; 202 - bracket; 203 - moving wheel; 300 - engineering vehicle; 1 - outer housing; 11 - receiving through hole; 12 - chute; 13 - first clamping block; 131 - first part; 1311 - first curved surface; 132 - second part; 1321 - second curved surface; 133 - third part; 1331 - third curved surface; 14 - second clamping block; 2 - main housing; 21 - first cavity; 22 - second cavity; 3 - first housing; 31 - third cavity; 32 - first slider; 33 - first manual pull tab; 34 - first marking line; 4 - second housing; 41 - fourth cavity; 42 - second slider; 43 - second manual pull tab; 44 - second marking line; 51 - first telescopic antenna main body; 52 - second telescopic antenna main body. Detailed Description of the Embodiment

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0042] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings.

[0043] Example 1

[0044] As shown Figures 1 to 9 in the figure, this embodiment provides a ground penetrating radar antenna 100 according to the first aspect of the present application, which includes an outer housing 1, a main housing 2, a first housing 3, a second housing 4, a first telescopic antenna body 51 and a second telescopic antenna body 52. The outer housing 1 is used to be installed on the bottom of the ground penetrating radar main body 201, and a receiving through hole 11 penetrating in the horizontal direction is formed in the outer housing 1. The main housing 2 is installed in the receiving through hole 11. The main housing 2 includes a first cavity 21 and a second cavity 22. The first cavity 21 and the second cavity 22 are arranged at intervals along the extending direction of the receiving through hole 11. One end of the first cavity 21 away from the second cavity 22 extends to the side surface of the main housing 2 to make this end open. One end of the second cavity 22 away from the first cavity 21 extends to the side surface of the main housing 2 to make this end open. The first housing 3 is movably installed in the first cavity 21. A third cavity 31 is formed by inward depression on the side surface of the first housing 3 close to the second cavity 22. The first cavity 21 and the third cavity 31 communicate with each other. The second housing 4 is movably installed in the second cavity 22. A fourth cavity 41 is formed by inward depression on the side surface of the second housing 4 close to the first cavity 21. The second cavity 22 and the fourth cavity 41 communicate with each other. The first telescopic antenna body 51 is arranged in the first cavity 21 and the third cavity 31, and both ends of the first telescopic antenna body 51 are respectively connected to the main housing 2 and the first housing 3. The second telescopic antenna body 52 is arranged in the second cavity 22 and the fourth cavity 41, and both ends of the second telescopic antenna body 52 are respectively connected to the main housing 2 and the second housing 4.

[0045] Through the above technical solution, when it is necessary to adjust the electromagnetic wave emission frequency of the antenna, the lengths of the first telescopic antenna body 51 and the second telescopic antenna body 52 can be adjusted by adjusting the positions of the first housing 3 and the second housing 4 relative to the main housing 2 respectively, so as to realize the adjustment of the electromagnetic wave emission frequency of the antenna (the electromagnetic wave frequency received and transmitted by the antenna is inversely proportional to its length). Compared with the technical solution of replacing other ground penetrating radar antennas 100 (or the whole set of ground penetrating radar equipment) in the existing related technologies, the disassembly and assembly process can be effectively avoided, the complexity of the operation can be simplified, and thus the detection efficiency can be improved. At the same time, precisely because there is no need to replace the ground penetrating radar antenna 100 or the whole set of ground penetrating radar equipment, there is no need to carry multiple sets of ground penetrating radar antennas 100 or ground penetrating radar equipment, and thus the problem of inconvenient carrying of multiple sets of ground penetrating radar antennas 100 or ground penetrating radar equipment is avoided.

[0046] In an implementation manner of the present application, as Figures 5 to 7As shown, a chute 12 extending horizontally through may also be formed within the outer housing 1 of the present application, and the chute 12 communicates with the accommodation through-hole 11; a first slider 32 and a second slider 42 respectively matching the chute 12 are formed on the first housing 3 and the second housing 4, and the first slider 32 and the second slider 42 are respectively inserted into the chute 12, so that the first housing 3 and the second housing 4 can slide along the axial direction of the main housing 2 respectively.

[0047] In this way, through the chute 12, the first slider 32 and the second slider 42 arranged as such, the first housing 3 and the second housing 4 can slide relative to the main housing 2 stably respectively, thereby realizing the stable adjustment of the frequency of the ground penetrating radar antenna 100.

[0048] In an embodiment of the present application, as Figures 5 to 8 shown, the outer housing 1 of the present application may further include a first clamping block 13 and a second clamping block 14 that match each other. A plurality of first clamping blocks 13 are arranged at intervals along the axial direction of the accommodation through-hole 11 within the chute 12, and a plurality of second clamping blocks 14 are respectively arranged on the first slider 32 and the second slider 42.

[0049] In this way, through the first clamping block 13 and the second clamping block 14 arranged as such, the distance between the first housing 3 and the second housing 4 relative to the main housing 2 can be determined very conveniently and quickly. At the same time, it is also beneficial to maintain the positions of the first housing 3 and the second housing 4 relative to the main housing 2 after adjustment, which is beneficial to improving the position stability of the first housing 3 and the second housing 4, and can effectively ensure the stability of the frequency of the ground penetrating radar antenna 100 after adjustment.

[0050] In the above embodiment, it can be understood that the positions of the plurality of first clamping blocks 13 can be preset so that the lengths of the first telescopic antenna main body 51 and the second telescopic antenna main body 52 corresponding to their positions can match different required frequencies, so that the frequency can be adjusted quickly during actual use.

[0051] In an embodiment of the present application, as Figure 8 shown, the first clamping block 13 of the present application may be formed into a U-shaped structure. The first clamping block 13 includes a first part 131 and a second part 132 arranged oppositely, and a third part 133 connected between the first part 131 and the second part 132. The first part 131, the second part 132 and the third part 133 together form an accommodation cavity for accommodating the second clamping block 14; the second clamping block 14 is formed into a semi-cylindrical structure, the flat side of the semi-cylindrical structure is connected to the first slider 32, and the curved side of the semi-cylindrical structure protrudes towards the first clamping block 13.

[0052] In this embodiment, with the first clamping block 13 and the second clamping block 14 arranged as such, not only can the stability of the second clamping block 14 when clamped within the first clamping block 13 be effectively ensured, thereby guaranteeing the frequency stability of the ground penetrating radar antenna 100, but also, the semi-cylindrical second clamping block 14 can facilitate its being pulled out from the accommodation cavity of the first clamping block 13.

[0053] In an embodiment of the present application, as Figure 8 shown, the side surface of the first part 131 of the present application away from the second part 132 is formed as a first curved surface 1311 that curves towards the direction close to the second part 132, the side surface of the second part 132 away from the first part 131 is formed as a second curved surface 1321 that curves towards the direction close to the first part 131, and the side surface of the third part 133 close to the second clamping block 14 is formed as a third curved surface 1331 that curves towards the direction away from the second clamping block 14; wherein, the first curved surface 1311, the second curved surface 1321, and the third curved surface 1331 are smoothly connected.

[0054] In this way, with the first clamping block 13 arranged as such and cooperating with the semi-cylindrical second clamping block 14, not only can the second clamping block 14 be effectively facilitated to be clamped into the first clamping block 13 and pulled out from the first clamping block 13, but also, the clamping stability between the first clamping block 13 and the second clamping block 14 can be effectively ensured.

[0055] In an embodiment of the present application, as Figures 4 to 6 shown, the first housing 3 of the present application may further include a first manual pull tab 33, and the first manual pull tab 33 is arranged at one end of the first housing 3 away from the second housing 4; and / or, the second housing 4 may further include a second manual pull tab 43, and the second manual pull tab 43 is arranged at one end of the second housing 4 away from the first housing 3.

[0056] In this way, with the first manual pull tab 33 and / or the second manual pull tab 43 arranged as such, it can facilitate an operator to adjust the position of the first housing 3 and / or the second housing 4 relative to the main housing 2 by means of the first manual pull tab 33 and / or the second manual pull tab 43.

[0057] In an embodiment of the present application, as Figure 5 and Figure 6 shown, the first housing 3 of the present application may further include a plurality of first marking lines 34, and the plurality of first marking lines 34 are uniformly spaced along the axial direction of the accommodation through hole 11 on the top surface of the first housing 3; and / or, the second housing 4 may further include a plurality of second marking lines 44, and the plurality of second marking lines 44 are uniformly spaced along the axial direction of the accommodation through hole 11 on the top surface of the second housing 4.

[0058] In this way, by setting the first marking line 34 and / or the second marking line 44 arranged as such, the distances between the first housing 3 and the second housing 4 relative to the main housing 2 can be visually and conveniently identified, so that the specific lengths of the first telescopic antenna body 51 and the second telescopic antenna body 52 can be obtained, facilitating the operator to master their corresponding frequencies.

[0059] It can be understood that the first marking line 34 and the second marking line 44 can also correspondingly mark the corresponding reference data, facilitating the operator to more visually and conveniently master the distances between the first housing 3 and the second housing 4 relative to the main housing 2.

[0060] According to the second aspect of the present application, as Figure 1 and Figure 2 , a ground penetrating radar 200 is further provided, including a ground penetrating radar main body 201, a bracket 202, moving wheels 203, and a ground penetrating radar antenna 100 according to any one of the technical solutions in the first aspect of the present application. The ground penetrating radar antenna 100 is installed at the bottom of the ground penetrating radar main body 201, the ground penetrating radar main body 201 is installed on the bracket 202, and the moving wheels 203 are arranged on the bracket 202 so that the bracket 202 can move driven by the moving wheels 203.

[0061] It can be understood that the ground penetrating radar 200 of the present application can be towed by an engineering vehicle 300 as Figure 1 shown, or the bracket 202 can be directly pushed manually by a person. The present application does not make specific limitations in this regard.

[0062] In an embodiment of the present application, as Figure 1 and Figure 2 shown, the ground penetrating radar main body 201 of the present application can be set to six. The six ground penetrating radar main bodies 201 are divided into three groups, namely the first group, the second group, and the third group, with two in each group. The second group is arranged between the first group and the third group; among them, the two ground penetrating radar main bodies 201 in the second group are arranged closely, the two ground penetrating radar main bodies 201 in the first group are arranged at intervals on both sides of the second group, the two ground penetrating radar main bodies 201 in the third group are arranged at intervals on both sides of the second group, and the first group and the third group are symmetrically arranged with respect to the second group.

[0063] In this way, through the six ground penetrating radar main bodies 201 arranged as such, the first group, the second group, and the third group can respectively correspond to three paths to detect road diseases, so as to cover the entire lane and improve the detection efficiency. At the same time, each group includes two detection radar main bodies, and the detection data can be mutually verified between the two, ensuring the accuracy of detection. In addition, all the ground penetrating radar main bodies 201 in the first group, the second group, and the third group do not interfere with each other and can respectively adjust their frequencies.

[0064] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and variations can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A ground penetrating radar antenna, characterized in that: include: An outer shell (1) is used to be installed on the bottom of the ground penetrating radar body (201), and a receiving through hole (11) is formed in the outer shell (1) and penetrates in a horizontal direction; A main housing (2) is installed in the accommodating through hole (11), the main housing (2) comprising a first cavity (21) and a second cavity (22), the first cavity (21) and the second cavity (22) being arranged spaced apart from each other along the extending direction of the accommodating through hole (11), an end of the first cavity (21) away from the second cavity (22) extending to a side surface of the main housing (2) so that the end is open, and an end of the second cavity (22) away from the first cavity (21) extending to a side surface of the main housing (2) so that the end is open; A first shell (3) is movably mounted in the first cavity (21); a side surface of the first shell (3) close to the second cavity (22) is inwardly recessed to form a third cavity (31); the first cavity (21) and the third cavity (31) are in communication with each other; A second shell (4) is movably mounted in the second cavity (22); a side surface of the second shell (4) close to the first cavity (21) is inwardly recessed to form a fourth cavity (41); the second cavity (22) and the fourth cavity (41) are in communication with each other; A first telescopic antenna body (51) and a second telescopic antenna body (52), wherein the first telescopic antenna body (51) is arranged in the first cavity (21) and the third cavity (31), and two ends of the first telescopic antenna body (51) are respectively connected to the main shell (2) and the first shell (3); and the second telescopic antenna body (52) is arranged in the second cavity (22) and the fourth cavity (41), and two ends of the second telescopic antenna body (52) are respectively connected to the main shell (2) and the second shell (4).

2. The ground penetrating radar antenna according to claim 1, characterized in that: The outer shell (1) is also formed with a slide groove (12) extending through the outer shell (1) in a horizontal direction, and the slide groove (12) is communicated with the accommodating through hole (11); the first shell (3) and the second shell (4) are respectively formed with a first slider (32) and a second slider (42) matching the slide groove (12), and the first slider (32) and the second slider (42) are respectively inserted into the slide groove (12) so that the first shell (3) and the second shell (4) can slide along the axial direction of the main shell (2).

3. The ground penetrating radar antenna according to claim 2, characterized in that: The outer shell (1) further comprises a first clamping block (13) and a second clamping block (14) which match each other, wherein the first clamping block (13) is provided in plurality, and the plurality of first clamping blocks (13) are arranged in the slide groove (12) at intervals along the axial direction of the accommodating through hole (11), and the second clamping block (14) is provided in plurality, and the plurality of second clamping blocks (14) are respectively arranged on the first sliding block (32) and the second sliding block (42).

4. The ground penetrating radar antenna according to claim 3, characterized in that: The first card block (13) is formed into a U-shaped structure, the first card block (13) comprising a first part (131) and a second part (132) arranged opposite to each other, and a third part (133) connected between the first part (131) and the second part (132), the first part (131), the second part (132) and the third part (133) together forming a receiving cavity for receiving the second card block (14); The second clamping block (14) is formed into a semi-cylindrical structure, the flat side surface of the semi-cylindrical structure is connected to the first sliding block (32), and the curved side surface of the semi-cylindrical structure protrudes toward the first clamping block (13).

5. The ground penetrating radar antenna according to claim 4, characterized in that: The side surface of the first part (131) away from the second part (132) is formed as a first curved surface (1311) curved in a direction close to the second part (132); the side surface of the second part (132) away from the first part (131) is formed as a second curved surface (1321) curved in a direction close to the first part (131); and the side surface of the third part (133) close to the second clamping block (14) is formed as a third curved surface (1331) curved in a direction away from the second clamping block (14); The first curved surface (1311), the second curved surface (1321) and the third curved surface (1331) are smoothly connected.

6. The ground penetrating radar antenna according to claim 1, characterized in that: The first shell (3) further comprises a first manual pull tab (33), the first manual pull tab (33) being arranged at an end of the first shell (3) away from the second shell (4); and / or, The second shell (4) further comprises a second manual pull tab (43), wherein the second manual pull tab (43) is arranged at an end of the second shell (4) away from the first shell (3).

7. The ground penetrating radar antenna according to claim 1, characterized in that: The first shell (3) further comprises a plurality of first marking lines (34), the plurality of first marking lines (34) being evenly spaced apart along the axial direction of the accommodating through hole (11) on the top surface of the first shell (3); and / or, The second shell (4) further comprises a plurality of second marking lines (44), the plurality of second marking lines (44) being arranged on the top surface of the second shell (4) at even intervals along the axial direction of the accommodating through hole (11).

8. A ground penetrating radar, characterized in that: The invention comprises a ground penetrating radar body (201), a bracket (202), a moving wheel (203), and a ground penetrating radar antenna according to any one of claims 1 to 7, wherein the ground penetrating radar antenna is installed at the bottom of the ground penetrating radar body (201), the ground penetrating radar body (201) is installed on the bracket (202), and the moving wheel (203) is arranged on the bracket (202) so that the bracket (202) can move under the drive of the moving wheel (203).

9. The ground penetrating radar according to claim 8, characterized in that: The number of the ground-penetrating radar bodies (201) is six, and the six ground-penetrating radar bodies (201) are divided into a first group, a second group, and a third group in pairs, and the second group is arranged between the first group and the third group; The two ground-penetrating radar bodies (201) of the second group are arranged closely together, the two ground-penetrating radar bodies (201) of the first group are arranged at intervals on both sides of the second group, the two ground-penetrating radar bodies (201) of the third group are arranged at intervals on both sides of the second group, and the first group and the third group are arranged symmetrically with respect to the second group.

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