A signal transmitting and sensing device for pole-embedment integrity detection

Abstract

The utility model discloses an embodiment discloses a kind of signal transmission and induction device for pole burying section integrity detection, comprising: exciting vibration component and induction component;Induction component includes first vibration sensing module, second vibration sensing module and support pole, first vibration sensing module and second vibration sensing module are respectively arranged at the both ends of support pole with preset distance, first vibration sensing module and second vibration sensing module are used to abut with the surface of pole and the connecting direction of both is parallel with the axial direction of the pole;Exciting vibration component is used to paste on the surface of pole and emit incident vibration signal towards pole burying section, first vibration sensing module and second vibration sensing module are respectively used to detect incident vibration signal and the reflected vibration signal after being reflected by pole burying section, realize device and pole nondestructive contact, improve device installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of non-destructive testing technology for infrastructure structures, and in particular to a signal transmission and sensing device for detecting the integrity of buried sections of utility poles. Background Technology

[0002] Currently, utility poles outside urban areas are frequently affected by factors such as typhoons, groundwater erosion, and traffic impacts, resulting in varying degrees of damage. Studies have shown that when the length of a circumferential crack on a utility pole exceeds one-third of its circumference, there is a risk of fracture due to horizontal tangential stress. Therefore, it is of great significance to conduct burial length and integrity testing on long-term operational utility poles.

[0003] Depending on the region, utility poles come in different lengths and thicknesses. Existing clamp-type detection devices are inefficient to install and can easily damage the poles. Utility Model Content

[0004] This utility model discloses a signal transmitting and sensing device for detecting the integrity of the buried section of a utility pole, which solves the problems of low installation efficiency and easy damage to the utility pole caused by the clamp-type detection device in the prior art.

[0005] This utility model provides a signal transmitting and sensing device for detecting the integrity of buried sections of utility poles, characterized in that it includes: an excitation component and a sensing component;

[0006] The excitation assembly is used to be attached to the surface of the utility pole and to emit incident vibration signals toward the embedded section of the utility pole.

[0007] The sensing component includes a first vibration sensing module, a second vibration sensing module, and a support rod. The first vibration sensing module and the second vibration sensing module are respectively disposed at two ends of the support rod at a preset distance. The first vibration sensing module and the second vibration sensing module are used to abut against the surface of the utility pole, and the direction of the line connecting the two is parallel to the axial direction of the utility pole.

[0008] The first vibration sensing module and the second vibration sensing module are disposed below the excitation assembly and are used to detect the incident vibration signal and the reflected vibration signal after being reflected by the buried section of the utility pole, respectively.

[0009] Furthermore, the first vibration sensing module and the second vibration sensing module are rigidly abutted against the surface of the utility pole.

[0010] Furthermore, the first vibration sensing module and the second vibration sensing module are respectively connected to the support rod through vibration isolation components, which are used to isolate the transmission of vibration signals between the first vibration sensing module and the second vibration sensing module.

[0011] Furthermore, both the first vibration sensing module and the second vibration sensing module include a contact support and a vibration sensor. The vibration sensor is connected to the support rod through the contact support. The contact support has symmetrical protrusions on both sides of the contact surface for contacting the utility pole. The vibration sensor is disposed on the non-contact surface of the contact support.

[0012] Furthermore, the protrusion has a semi-cylinder structure, the central axis of the semi-cylinder is parallel to the central axis of the utility pole, and the arc surface of the semi-cylinder is used to contact the surface of the utility pole to achieve line contact between the protrusion and the surface of the utility pole.

[0013] Furthermore, the excitation assembly includes an excitation surface and an adhesive surface. The excitation surface is perpendicular to the adhesive surface, and the adhesive surface is used to connect with the surface of the utility pole. The excitation surface is positioned away from the ground to generate an incident vibration signal toward the buried section of the utility pole when the excitation surface is struck.

[0014] Furthermore, a protruding conductive part is provided in the middle of the adhesive surface, and the adhesive surfaces on both sides of the conductive part are used to bond to the surface of the utility pole by filling with adhesive material, and the conductive part is in direct contact with the utility pole.

[0015] Furthermore, the adhesive material is a hot melt adhesive.

[0016] Furthermore, the support rod is symmetrically provided with fixing members on both sides, and the bottom of the fixing members is used to contact the surface of the utility pole.

[0017] Furthermore, the fastener includes a stud and a screw hole, the screw holes being symmetrically distributed on both sides of the support rod, one end of the stud being disposed in the screw hole and connected to the screw hole, and the other end of the stud being used to contact the surface of the utility pole.

[0018] As can be seen from the technical solution, the embodiments provided by this utility model have the following advantages:

[0019] This embodiment of the invention achieves non-destructive contact between the detection device and the utility pole by attaching the excitation component to the surface of the utility pole and abutting the sensing component against the surface of the utility pole. By setting the first vibration sensing module and the second vibration sensing module at a preset distance on the support rod, the entire sensing component can directly abut against the utility pole during use, eliminating the need to install the first and second vibration sensing modules one by one on the surface of the utility pole and eliminating the need to adjust the distance between the first and second vibration sensing modules on the surface of the utility pole, thus improving installation efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the signal transmitting and sensing device for detecting the integrity of the buried section of a utility pole provided in this embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the sensing component in the signal transmitting and sensing device for detecting the integrity of the buried section of a utility pole provided in this embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the assembly of the first sensing module or the second sensing module and the support rod in the signal transmitting and sensing device for detecting the integrity of the buried section of a utility pole provided in this embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the assembly of the fixing component and the support rod in the signal transmitting and sensing device for detecting the integrity of the buried section of a utility pole provided in this embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the excitation component in the signal transmitting and sensing device for detecting the integrity of the buried section of a utility pole provided in an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the test point layout in the signal transmitting and sensing device for detecting the integrity of the buried section of a utility pole provided in this embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram (a) of the vibration signal obtained by the signal transmitting and sensing device for detecting the integrity of the buried section of a utility pole provided in this embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram (II) of the vibration signal obtained by the signal transmitting and sensing device for detecting the integrity of the buried section of a utility pole provided in this embodiment of the present invention. Attached Figure Description

[0030] 1. Vibration excitation assembly; 11. Vibration excitation surface; 12. Adhesive surface; 13. Conducting part; 14. Vibration hammer; 2. First vibration sensing module; 3. Second vibration sensing module; 4. Support rod; 5. Vibration isolation component; 6. Contact support; 61. Protrusion; 7. Vibration sensor; 8. Utility pole; 9. Fixing component; 91. Stud; 92. Screw hole; 10. Processor; 15. Ground. Detailed Implementation

[0031] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0035] This utility model discloses a signal transmission and sensing device for detecting the integrity of buried sections of utility poles.

[0036] Please see Figures 1-2 An embodiment of the signal transmission and sensing device for detecting the integrity of buried sections of utility poles provided in this utility model includes: an excitation assembly 1 and a sensing assembly;

[0037] The sensing component includes a first vibration sensing module 2, a second vibration sensing module 3, and a support rod 4. The first vibration sensing module 2 and the second vibration sensing module 3 are respectively disposed at two ends of the support rod 4 at a preset distance. The connecting direction of the first vibration sensing module 2 and the second vibration sensing module 3 is parallel to the axial direction of the utility pole 8. The first vibration sensing module 2 and the second vibration sensing module 3 abut against the surface of the utility pole 8.

[0038] The excitation assembly 1 is used to be attached to the surface of the utility pole 8 and emit incident vibration signals toward the buried section of the utility pole. The first vibration sensing module 2 and the second vibration sensing module 3 are located below the excitation assembly 1 and are used to detect the incident vibration signal and the reflected vibration signal after being reflected by the buried section of the utility pole, respectively.

[0039] In essence, during implementation, the device achieves non-destructive contact with the utility pole 8 by attaching the excitation component 1 to the surface of the pole 8 and by abutting the sensing component against the surface of the pole 8. By setting the first vibration sensing module 2 and the second vibration sensing module 3 at a preset distance on the support rod 4, the entire sensing component directly abuts against the utility pole 8 during use, eliminating the need to install the first vibration sensing module 2 and the second vibration sensing module 3 individually on the surface of the pole 8 and to adjust their distance on the surface of the pole 8, thus improving installation efficiency. Furthermore, by detecting the incident vibration signal emitted by the excitation component 1 and the reflected vibration signal after reflection from the bottom of the buried section of the utility pole by the two vibration sensing modules, the integrity of the buried section of the utility pole 8 can be detected.

[0040] It should be noted that this embodiment protects an improved structural design for the signal transmission and sensing device used for detecting the integrity of the buried section of the utility pole 8. However, analyzing the incident and reflected vibration signals acquired by the first vibration sensing module 2 and the second vibration sensing module 3 respectively to determine the integrity of the buried section is existing technology.

[0041] It should also be noted that the device in this embodiment is used to detect the integrity of the buried section of the utility pole, therefore the device is installed on the surface of the utility pole 8 near the ground 15.

[0042] In a more specific embodiment, such as Figure 3 As shown, the first vibration sensing module 2 and the second vibration sensing module 3 are rigidly in contact with the surface of the utility pole 8.

[0043] It is understandable that rigid contact ensures the efficiency of signal transmission between the utility pole 8 and the first vibration sensing module 2 and the second vibration sensing module 3.

[0044] In a more specific embodiment, such as Figure 3As shown, the first vibration sensing module 2 and the second vibration sensing module 3 are respectively connected to the support rod 4 through the vibration isolation component 5. The vibration isolation component 5 is used to isolate the vibration signal transmission between the first vibration sensing module 2 and the second vibration sensing module 3.

[0045] Understandably, in practical implementation, the first vibration sensing module 2 and the second vibration sensing module 3 need to be in rigid contact with the surface of the utility pole 8 to acquire incident and reflected vibration signals. The acquisition times of the incident and reflected vibration signals by the first and second vibration sensing modules 2 and 3 are not synchronized. The incident vibration signal acquired by the first vibration sensing module 2 may be synchronously transmitted to the second vibration sensing module 3, causing interference to the second vibration sensing module 3, or the vibration signal acquired by the second vibration sensing module 3 may be synchronously transmitted to the first vibration sensing module 2, causing interference to the first vibration sensing module 2. Therefore, this embodiment uses a vibration isolator 5 to absorb the vibration signals and reflected vibration signals of either the first or second vibration sensing module 2, thereby isolating the vibration signals between the first and second vibration sensing modules 2 and reducing interference.

[0046] In a more specific embodiment, the vibration sensor 7 is an acceleration sensor.

[0047] The accelerometer is responsible for receiving the initial incident wave generated by the excitation assembly 1, as well as the reflected wave signal generated by the wave impedance interface such as the crack in the rod, the cross-sectional change, or the bottom of the rod.

[0048] It should be noted that the contact support 6 is made of rigid metal. The accelerometer can be directly and tightly mounted to the contact support 6 via mounting bolts, maintaining rigid contact between the vibration sensor 7 and the pole 8, thus achieving high-fidelity transmission of high-frequency vibration signals. There is a vibration isolation pad between the contact support 6 and the support rod 4, made of high-damping composite rubber material. This decouples the vibration of each channel, effectively blocking the vibration signal between the sensor and the support, avoiding crosstalk between multiple channels, and ensuring the independence and purity of each channel signal. The distance between the two contact supports 6 is no less than half a typical wavelength (0.6m) to ensure that the time difference between the two accelerometer channel signals can be distinguished, and the distance is precisely fixed for subsequent calculations.

[0049] In a more specific embodiment, the vibration isolator 5 is made of a high-damping composite rubber material.

[0050] It should be noted that the vibration isolator 5 is a custom-shaped rubber part, the function of which is to isolate high-frequency signals.

[0051] In this embodiment, the target signal detected is a vibration signal, presented in the form of mechanical waves or stress waves. Both are high-frequency signals, reaching thousands of hertz. Such vibration signals require rigid contact to ensure accurate propagation. The contact supports 6 of the two vibration sensors 7 are connected to the support rod via rubber components, which absorb the effective high-frequency signals. This ensures that the vibration sensor 7 only senses the vibration signal transmitted from the contact support 6 to which it is connected.

[0052] In a more specific embodiment, both the first vibration sensing module 2 and the second vibration sensing module 3 include a contact support 6 and a vibration sensor 7. The vibration sensor 7 is connected to the support rod 4 through the contact support 6. The contact support 6 has symmetrical protrusions 61 on both sides of the contact surface for contacting the utility pole 8. The vibration sensor 7 is disposed on the non-contact surface of the contact support 6.

[0053] Understandably, in practical implementation, the surface structure of the utility pole 8 is usually curved. The sensing component 1 is held against the surface of the utility pole 8 by the hand-held support rod 4. If the vibration sensor 7 directly contacts the surface of the utility pole 8, there may be poor contact stability. Therefore, in order to improve the contact stability and reduce the risk of device displacement and vibration during the detection process, the vibration sensor 7 in this embodiment does not directly contact the utility pole 8, but abuts against the surface of the utility pole 8 through the contact support 6. Symmetrical protrusions 61 are provided on the contact surface between the contact component and the utility pole 8. Compared with the vibration sensor 7 directly contacting the surface of the utility pole 8 at a single point or on a single line, the protrusions 61 in this embodiment can better adapt to the curvature of the surface of the utility pole 8, increase the contact area with the surface of the utility pole 8, thereby enhancing the friction and better adapting to utility poles 8 of different diameters.

[0054] In a more specific embodiment, the protrusions 61 are symmetrically distributed on the contact surface along the central axis of the support rod length direction.

[0055] In a more specific embodiment, the protrusion 61 is a semi-cylinder with its central axis parallel to the central axis of the utility pole 8. The arc surface of the semi-cylinder is used to contact the surface of the utility pole 8 to achieve line contact between the protrusion 61 and the surface of the utility pole 8.

[0056] Understandably, in specific implementation, this example achieves double-line contact between the contact support 6 and the utility pole by setting protruding and parallel symmetrical semi-cylinders on the contact surface of the contact support 6. This further improves the stability of the contact between the sensing component and the utility pole 8, reduces the error caused by the offset and jitter of the sensing component in the detection of vibration signals, ensures the accuracy and reliability of the detection results, and guarantees that the vibration signal can be quickly and stably transmitted to the contact support 6 for utility poles 8 of any thickness.

[0057] In a more specific embodiment, such as Figure 5 As shown, the vibration assembly 1 includes a vibration surface 11 and an adhesive surface 12. The vibration surface 11 is perpendicular to the adhesive surface 12. The adhesive surface 12 is used to connect with the surface of the utility pole 8. The vibration surface 11 is positioned away from the ground 15 to generate a vibration signal toward the buried section of the utility pole 8 when the vibration surface 11 is struck.

[0058] It is understood that, in specific implementation, the excitation surface 11 in this embodiment is set perpendicular to the adhesive surface 12 and away from the ground 15, so as to generate a vibration signal toward the buried section of the utility pole 8 when the excitation surface 11 is struck.

[0059] In a more specific embodiment, the excitation assembly 1 adopts an excitation guide, and the excitation force is applied to the excitation surface 11 of the excitation guide by the excitation hammer 14 to ensure that the excitation force is applied along the central axis direction of the utility pole 8 (perpendicular to the ground 15 direction), and to ensure that the point of action and direction of each strike are consistent, thereby generating a vibration signal with good repeatability and clear direction, namely a mechanical wave or stress wave signal.

[0060] In a more specific embodiment, a protruding conductive part 13 is provided in the middle of the adhesive surface 12, and the adhesive surfaces 12 on both sides of the conductive part 13 are used to bond to the surface of the utility pole 8 by filling with adhesive material, and the conductive part 13 is in direct contact with the utility pole 8.

[0061] Understandably, in specific implementation, by setting the transmission part 13, rigid contact is ensured between the excitation assembly 1 and the surface of the utility pole 8, ensuring the transmission efficiency of the vibration signal between the excitation assembly 1 and the surface of the utility pole 8. At the same time, in this embodiment, adhesive material is filled between the adhesive surfaces 12 on both sides of the transmission part 13 and the utility pole 8 to improve the contact stability between the transmission part 13 and the surface of the utility pole 8.

[0062] In a more specific embodiment, the adhesive material is a hot melt adhesive.

[0063] Understandably, in practical implementation, leveraging the advantages of hot melt adhesive's high plasticity and stability, hot melt adhesive is first applied to the bonding surfaces 12 on both sides of the conductive part 13. Then, the entire excitation assembly 1 is pressed onto the surface of the utility pole 8 through the conductive part 13. The conductive part 13 makes rigid contact with the surface of the utility pole 8, and the adhesive is squeezed and filled into the gap between the bonding surfaces 12 and the utility pole 8, i.e., both sides of the conductive part 13. After the hot melt adhesive cures, the excitation assembly 1 is fixed to the surface of the utility pole 8, and the hot melt adhesive promotes full coupling between the excitation assembly 1 and the surface of the utility pole 8. The conductive part 13 not only ensures full adhesion between the excitation assembly 1 and the surface of the utility pole 8 but also guarantees efficient signal transmission between the excitation assembly 1 and the utility pole 8. The conductive part 13 minimizes its contact area with the utility pole 8, reducing damage to the exterior wall caused by impact.

[0064] In a more specific embodiment, the support rod 4 is provided with fixing members 9 symmetrically on both sides, and the bottom of the fixing members 9 is used to contact the surface of the utility pole.

[0065] Understandably, the support rod 4 makes auxiliary contact with the utility pole 8 through the fixing part 9 to improve the stability of the sensing component.

[0066] In a more specific embodiment, the fastener 9 includes a stud 91 and a screw hole 92. The screw holes 92 are symmetrically distributed on both sides of the support rod 4. One end of the stud 91 is disposed in the screw hole 92 and is connected to the screw hole 92. The other end of the stud 91 is used to contact the surface of the utility pole 8.

[0067] Understandably, in practice, the relative positions of the stud 91 and the screw hole 92 can be adjusted according to the curvature of the surface of the utility pole 8, so that the fixing part 9 can be adapted to the surface of the utility pole 8 with different curvatures.

[0068] In a more specific embodiment, the sensing component further includes a processor 10, which is mounted on the support rod 4. The processor 10 is connected to the vibration sensors 7 in the first vibration sensing module 2 and the second vibration sensing module 3, respectively. The processor 10 is used to acquire, process, and analyze the data from the vibration sensors 7.

[0069] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The technical solution involves the process of detecting and analyzing the length of the buried section of a utility pole, and the acquisition of... Figure 7 and Figure 8 The methods shown in the schematic diagram of the mechanical wave of the vibration signal are all existing technologies. They are used to further explain and demonstrate the beneficial effects of the signal transmission and sensing device for detecting the integrity of the buried section of the utility pole 8 provided by this utility model in combination with any of the above embodiments, so that those skilled in the art can understand the contribution of the solution. The following embodiments are not limitations on this utility model, and those skilled in the art can make adjustments according to the actual situation in practical applications.

[0070] Step 1: Selecting and fixing the points

[0071] After the device is fully unfolded, it is placed parallel to the utility pole 8, and the position is adjusted so that the test point (test point one) of the second vibration sensor 7 module on the device is 0.2m above the ground; the excitation guide is installed at the test point (test point two) 0.3m away from the first vibration sensor 7 module.

[0072] Step 2: Device Connection

[0073] Turn on the device power, connect the device WiFi to the dedicated tablet, open the dedicated software, and complete the zero-point calibration, software parameter settings, etc. in sequence.

[0074] Step 3: Data Collection

[0075] Once connected, click the "Acquisition" button in the software to synchronously start data recording. Select a pre-set mass vibration hammer 14 and strike the vibration guide with a constant force along the direction perpendicular to the ground 15 (the main test direction). After completing the effective signal acquisition, store the raw data.

[0076] Step 4: Result Analysis

[0077] The raw waveforms of the collected vibration signals are preprocessed by software, and the dual-channel signals are mixed to reduce standing wave interference in the main channel. The software automatically extracts the first wave time of test point one and test point two, and combined with the known distance between the first vibration sensor module 7 and the second vibration sensor module 7 (the distance between test point two and test point one, such as 0.8m), the mechanical wave propagation velocity of the utility pole 8 can be obtained as C = L / (t2-t1).

[0078] Where L is the distance between test point 1 and test point 2, and t2 and t1 are from... Figure 8 Obtain from, Figure 8 This diagram illustrates the incident vibration signal and the reflected vibration signal passing through test point one and test point two, respectively. That is, t2-t1 is the time difference between the incident vibration signal passing through test point two and test point one in sequence.

[0079] A true and accurate reflected signal from the 8-body embedded section of the utility pole will exhibit a specific time delay relationship at test points one and two. By using an isosceles trapezoidal discrimination window, the double-pass reflected signals are further mutually corrected, and erroneous reflected signals that do not meet the requirements are eliminated.

[0080] Finally, according to the formula H=C*(t3-t1) / 2, where t3-t1 is the time difference between the reflected vibration signal and the incident vibration signal passing through test point 2, the actual buried length of the utility pole 8 can be calculated.

[0081] The actual buried length of the utility pole 8 here is based on the reflection point of the vibration signal as the bottom of the utility pole 8. This reflection point may not be the bottom of the utility pole 8, but may be a crack or other damage.

[0082] It should be noted that there are design drawings for utility pole 8, and the design drawings also include the ratio of exposed length to buried length. The theoretical total length of utility pole 8 is known, and the theoretical buried length of utility pole 8 is also known. The integrity of the buried section of utility pole 8 is judged by comparing the deviation between the theoretical buried length value of utility pole 8 and the actual buried length value of utility pole 8 calculated above. If the deviation is large, the buried section of utility pole 8 is damaged. If the deviation is within a reasonable range, utility pole 8 is considered to be intact.

[0083] It should also be noted that the embedment depth calculation formula and dual-channel signal detection in this embodiment are existing technologies, and can be found in existing patent documents CN119553732A and CN120254069A.

[0084] It should be noted that the terms used to describe positional relationships in the above examples and accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. The various embodiments of this utility model described above are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A signal transmitting and sensing device for detecting the integrity of buried sections of utility poles, characterized in that, include: Vibration components and sensing components; The excitation assembly is used to be attached to the surface of the utility pole and to emit incident vibration signals toward the embedded section of the utility pole. The sensing component includes a first vibration sensing module, a second vibration sensing module, and a support rod. The first vibration sensing module and the second vibration sensing module are respectively disposed at two ends of the support rod at a preset distance. The first vibration sensing module and the second vibration sensing module are used to abut against the surface of the utility pole, and the direction of the line connecting the two is parallel to the axial direction of the utility pole. The first vibration sensing module and the second vibration sensing module are disposed below the excitation assembly and are used to detect the incident vibration signal and the reflected vibration signal after being reflected by the buried section of the utility pole, respectively.

2. The signal transmitting and sensing device for detecting the integrity of buried sections of utility poles according to claim 1, characterized in that, The first vibration sensing module and the second vibration sensing module are in rigid contact with the surface of the utility pole.

3. The signal transmitting and sensing device for detecting the integrity of buried sections of utility poles according to claim 1, characterized in that, The first vibration sensing module and the second vibration sensing module are respectively connected to the support rod through vibration isolation components. The vibration isolation components are used to isolate the transmission of vibration signals between the first vibration sensing module and the second vibration sensing module.

4. A signal transmitting and sensing device for detecting the integrity of buried sections of utility poles according to any one of claims 1-3, characterized in that, Both the first vibration sensing module and the second vibration sensing module include a contact support and a vibration sensor. The vibration sensor is connected to the support rod through the contact support. The contact support has symmetrical protrusions on both sides of the contact surface that contacts the utility pole. The vibration sensor is disposed on the non-contact surface of the contact support.

5. A signal transmitting and sensing device for detecting the integrity of buried sections of utility poles according to claim 4, characterized in that, The protrusion has a semi-cylinder structure, and the central axis of the semi-cylinder is parallel to the central axis of the utility pole. The arc surface of the semi-cylinder is used to contact the surface of the utility pole to achieve line contact between the protrusion and the surface of the utility pole.

6. The signal transmitting and sensing device for detecting the integrity of buried sections of utility poles according to claim 1, characterized in that, The excitation assembly includes an excitation surface and an adhesive surface. The excitation surface is perpendicular to the adhesive surface. The adhesive surface is used to connect with the surface of the utility pole. The excitation surface is positioned away from the ground to generate an incident vibration signal toward the buried section of the utility pole when the excitation surface is struck.

7. A signal transmitting and sensing device for detecting the integrity of buried sections of utility poles according to claim 6, characterized in that, The adhesive surface has a protruding conductive part in the middle, and the adhesive surfaces on both sides of the conductive part are used to bond to the surface of the utility pole by filling with adhesive material. The conductive part is in direct contact with the utility pole.

8. A signal transmitting and sensing device for detecting the integrity of buried sections of utility poles according to claim 7, characterized in that, The adhesive material is a hot melt adhesive.

9. A signal transmitting and sensing device for detecting the integrity of buried sections of utility poles according to claim 1, characterized in that, The support rod is symmetrically provided with fixing members on both sides, and the bottom of the fixing members is used to contact the surface of the utility pole.

10. A signal transmitting and sensing device for detecting the integrity of buried sections of utility poles according to claim 9, characterized in that, The fastener includes a stud and a screw hole. The screw holes are symmetrically distributed on both sides of the support rod. One end of the stud is disposed in the screw hole and is connected to the screw hole. The other end of the stud is used to contact the surface of the utility pole.

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