Multi-probe array receiving device for detecting buried depth and planar position of non-metallic pipelines

Abstract

The present invention discloses a multi-probe array receiving device for detecting the burial depth and planar position of non-metallic pipelines, including a top plate. Four probes are arranged in parallel and side by side on the bottom surface of the top plate. The top ends of the probes penetrate the top plate by means of connecting rods, and all four probes are externally connected to a receiver by the connecting rods. A plurality of sliding grooves are provided on the top surface of the top plate, and the connecting rods are in sliding fit with the sliding grooves. The present invention selects a suitable top plate according to the size of the non-metallic pipeline and the connecting gap, and uses the horizontal grooves and vertical grooves on the surface of the top plate to adjust the positions of the multiple probes in real time, facilitating the adjustment of the array arrangement mode of the multiple probes on the bottom surface of the top plate, facilitating the transmission of the data information of the gap collision sound by the multiple probes to the receiver through the connecting rods, enhancing the sound signal generated by the internal detector inside the non-metallic pipeline by using the cross-correlation method, effectively improving the signal-to-noise ratio of the signal, and accurately detecting the burial depth and planar position of the non-metallic pipeline according to the data information.

Description

Technical Field

[0001] The present invention belongs to the technical field of non - metallic pipeline detection, and particularly relates to a multi - probe array receiving device for detecting the burial depth and planar position of non - metallic pipelines. Background Art

[0002] When detecting a non - metallic pipeline, when the in - pipeline detector detects a wall defect during its travel, it records the defect information and the defect position. The position is recorded using the odometer wheel carried by the in - pipeline detector, so as to dig according to the value measured by the odometer wheel to find the pipeline defect for pipeline maintenance. However, factors such as the mechanical structure error and wear of the odometer wheel itself, the flipping of the in - pipeline detector during travel, and the slipping and failure of the odometer wheel will all affect the accuracy of the odometer wheel counting. Therefore, it is necessary to use a ground marking system to mark and calibrate the travel process of the in - pipeline detector, eliminate the cumulative error of the odometer wheel, and thus limit the positioning error of the defect within the range allowed by the project.

[0003] When the ground marking system uses a single detection sensor to detect a non - metallic pipeline, the interference of noise makes it impossible to accurately detect the internal situation of the non - metallic pipeline. Moreover, since the detection sensor is placed on the ground, external vibrations and collisions of objects easily cause the detection sensor to shake, which easily increases the detection error of the detection sensor.

[0004] Therefore, it is very necessary to invent a multi - probe array receiving device for detecting the burial depth and planar position of non - metallic pipelines to solve the above problems. Summary of the Invention

[0005] In view of the above problems, the present invention provides a multi - probe array receiving device for detecting the burial depth and planar position of non - metallic pipelines to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A multi - probe array receiving device for detecting the burial depth and planar position of non - metallic pipelines, including a top plate. Four parallel and juxtaposed probes are arranged on the bottom surface of the top plate. The top ends of the probes penetrate through the top plate by connecting rods, and all four probes are externally connected to a receiver by the connecting rods. A plurality of sliding grooves are arranged on the top surface of the top plate, and the connecting rods are slidably matched with the sliding grooves. The plurality of sliding grooves include two horizontal grooves and two vertical grooves. The two horizontal grooves are oppositely arranged, and the two vertical grooves are oppositely arranged. The four probes are respectively arranged in one - to - one correspondence with the two horizontal grooves and the two vertical grooves. A nut is spirally sleeved on the top end of the connecting rod, and a clamping column for limiting cooperation with the sliding groove is arranged at the bottom end of the connecting rod. The four probes are relatively arranged into two detection groups. Each detection group is correspondingly connected by a connecting structure. The two probes in each detection group are respectively corresponding to the horizontal groove and the vertical groove, and the two detection groups are arranged in an alternating and corresponding manner. The two detection groups are arranged in an array on the bottom surface of the top plate by two connecting structures.

[0007] Further, the connection structure includes two connection brackets. The top end of the probe is fixedly connected to the connecting rod by a limiting bracket. The bottom end of the probe is provided with a detection head, and the detection head is connected to the receiver by the connecting rod passing through the probe and the top end of the limiting bracket. The connection brackets are rotatably sleeved on the surface of the limiting bracket. At this time, the two connection brackets are arranged oppositely, and the surfaces of the two connection brackets are correspondingly connected by a limiting sleeve.

[0008] Further, two limiting grooves are provided on both the top surface and the bottom surface of the limiting sleeve, and the two connection brackets are respectively arranged corresponding to the two limiting grooves. The end of the connection bracket is slidably matched with the limiting groove by a clamping rod. A fastening sleeve is screwed on the top end of the clamping rod, and the bottom surface of the fastening sleeve is attached to the top surface of the limiting sleeve.

[0009] Further, the vertical groove includes an arc groove and a straight groove. The arc groove is inside the straight groove. The center of the arc groove corresponds to and coincides with the outer end of the horizontal groove. The two probes of the detection group are respectively located at the outer end of the horizontal groove and the inner end of the arc groove. At this time, the four probes are arranged side by side at the bottom of the top plate.

[0010] Further, limiting structures for stabilizing the top plate are connected to the four corners of the top plate. The limiting structure includes a rotating bracket. A ring groove for rotatably cooperating with the rotating bracket is provided at the corner of the top plate. A ring belt is provided on the top surface of the top plate, and the ring belt sleeved on the surfaces of multiple rotating brackets. The multiple rotating brackets are rotatably cooperated by the ring belt.

[0011] Further, each of the limiting structures is independently provided, and multiple limiting structures are used to stabilize the top plate. The top end of the rotating bracket protrudes from the top surface of the top plate, and the bottom side of the ring belt is attached to the top surface of the top plate.

[0012] Further, the limiting structure further includes a bottom frame. The top end of the bottom frame is fixedly connected to the bottom surface of the top plate, and multiple bottom frames are evenly distributed at the four corners of the bottom surface of the top plate. The multiple bottom frames are arranged corresponding to the multiple rotating brackets one by one. A movable rod is sleeved at the center of the bottom frame. The bottom end of the movable rod extends out of the bottom end of the bottom frame. A screw rod is spirally inserted into the movable rod. The bottom end of the screw rod is flush with the bottom end of the movable rod, and the top end of the screw rod spirally penetrates through the center of the rotating bracket.

[0013] Further, multiple strip grooves are provided on the surface of the bottom frame, and the movable rod is externally connected with a sliding sleeve by the multiple strip grooves. The movable rod is slidably cooperated with the bottom frame up and down by the sliding sleeve. The top surface of the sliding sleeve is fixedly connected to the bottom surface of the top plate by a spring.

[0014] The technical effects and advantages of the present invention:

[0015] 1. The present invention selects a suitable top plate through a non-metallic pipeline and the size of the connection gap, and uses the horizontal grooves and vertical grooves on the surface of the top plate to adjust the positions of multiple probes in real time, which is convenient for adjusting the array arrangement mode of multiple probes on the bottom surface of the top plate. It is convenient for multiple probes to transmit the data information of the gap collision sound to the receiver through the connecting rod, and uses the cross-correlation method to enhance the sound signal generated by the internal detector in the non-metallic pipeline, effectively improving the signal-to-noise ratio of the signal. According to the data information, the burial depth and planar position of the non-metallic pipeline can be accurately detected.

[0016] 2. The present invention adjusts the relative distance between two probes through the relative distance between the outer end of the horizontal groove and the inner end of the vertical groove, so that the two probes of each detection group respectively cooperate with the horizontal groove and the vertical groove. Loosen the fastening sleeve, pull the end of the connecting frame to move inside the limiting sleeve. At this time, the connecting frame moves inside the limiting groove by using the clamping rod until the two probes move to the appropriate positions, then tighten the fastening sleeve. The spiral effect of the fastening sleeve and the clamping rod is used to conveniently fix the end of the connecting frame to the limiting sleeve, thereby limiting the relative distance between the two probes, facilitating the two detection groups to adapt to top plates of different sizes, and using the two detection groups to detect different non-metallic pipelines.

[0017] 3. The present invention rotates the rotating frame. When the rotating frame rotates on the top surface of the top plate by using the annular groove, the rotating frame drives other rotating frames to rotate synchronously by using the annular belt. Due to the limitation of the square-round groove of the movable rod on the screw rod, the spiral effect between the rotating frame and the screw rod causes the screw rod to move downward inside the rotating frame, and the bottom end of the screw rod gradually gets stuck into the ground. The buckling of the screw rod and the ground is used to ensure the installation stability of the top plate and the bottom surface. When adjusting the screw rod by rotating the rotating frame, a single rotating frame can be rotated alone, and the distance that the bottom end of a single screw rod extends out of the bottom end of the movable rod can be adjusted alone, and the top plate can be installed horizontally and stably on the ground on uneven ground to ensure the stability of the top plate.

[0018] 4. When the top plate is correspondingly placed on the ground in the present invention, the weight of the top plate at this time causes the bottom end of the movable rod to impact the ground, and the elastic force of the spring is used to absorb the impact force received by the top plate; when the top plate is installed on the ground, when an external object impacts the top surface of the top plate, at this time, when the top plate continues to insert the bottom surface by using the screw rod, the top plate squeezes the spring by using the sliding sleeve, avoiding the serious inclination of the top plate on the ground surface caused by the impact of the external object, and being able to minimize the influence of the inclined top plate on the probes as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is an overall schematic diagram of the multi-probe array receiving device according to an embodiment of the present invention, which can be used to detect the burial depth and planar position of non-metallic pipelines;

[0021] Figure 2 is a schematic diagram of the connection structure of multiple probes according to an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the bottom surface structure of the top plate according to an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of the internal structure of the limiting structure according to an embodiment of the present invention;

[0024] In the figure: 1. top plate; 2. probe; 3. connecting rod; 4. horizontal groove; 5. vertical groove; 6. nut; 7. clamping column; 8. connecting frame; 9. limiting frame; 10. detection head; 11. limiting sleeve; 12. limiting groove; 13. clamping rod; 14. fastening sleeve; 15. rotating frame; 16. annular groove; 17. annular belt; 18. bottom frame; 19. movable rod; 20. screw rod; 21. strip groove; 22. sliding sleeve; 23. spring. Specific embodiments

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] The present invention provides a multi-probe array receiving device for detecting the burial depth and planar position of non-metallic pipelines, as shown in Figure 1-2As shown in the figure, it includes a top plate 1. Four probes 2 are arranged in parallel and side by side on the bottom surface of the top plate 1. The top ends of the probes 2 penetrate through the top plate 1 by means of connecting rods 3, and all four probes 2 are externally connected to a receiver by the connecting rods 3. A plurality of sliding grooves are arranged on the top surface of the top plate 1, and the connecting rods 3 are slidably matched with the sliding grooves. The plurality of sliding grooves include two horizontal grooves 4 and two vertical grooves 5. The two horizontal grooves 4 are arranged oppositely, and the two vertical grooves 5 are arranged oppositely. The four probes 2 are respectively arranged in one-to-one correspondence with the two horizontal grooves 4 and the two vertical grooves 5. A nut 6 is spirally sleeved on the top end of the connecting rod 3, and a clamping post 7 for limiting cooperation with the sliding groove is arranged at the bottom end of the connecting rod 3. The four probes 2 are oppositely arranged into two detection groups. Each detection group is correspondingly connected by a connecting structure. The two probes 2 in each detection group are respectively corresponding to the horizontal groove 4 and the vertical groove 5, and the two detection groups are arranged in a staggered and corresponding manner. The two detection groups are arranged in an array on the bottom surface of the top plate 1 by means of two connecting structures. After the probes 2 need to be correspondingly installed on the bottom surface of the top plate 1, the connecting rods 3 respectively connected to the four probes 2 penetrate through the outer ends of the two horizontal grooves 4 and the inner ends of the two vertical grooves 5. At this time, the plurality of probes 2 are arranged in parallel and side by side at the bottom of the top plate 1. When it is necessary to detect the burial depth and planar position of the non-metallic pipeline inside the ground, after the two detection groups are arranged in an array on the bottom surface of the top plate 1 in cooperation with the two horizontal grooves 4 and the two vertical grooves 5, the plurality of probes 2 are correspondingly limited at the top of the position where the non-metallic pipeline is located. When the plurality of probes 2 move to a suitable position, the nut 6 is screwed. The spiral effect of the nut 6 and the connecting rod 3 causes the connecting rod 3 to drive the probe 2 to move upward. The clamping post 7 at the bottom end of the connecting rod 3 gradually snaps into the inside of the sliding groove. By using the limiting buckle of the clamping post 7 and the sliding groove, the stability of the probe 2 at the bottom of the top plate 1 is ensured.

[0027] Among them, the non-metallic pipeline is formed by correspondingly connecting a plurality of pipelines. A connecting gap is formed after two adjacent pipelines are connected. When the internal detector moves inside the non-metallic pipeline, when the internal detector passes through the connecting gap, a gap collision sound is generated between the internal detector and the connecting gap. By using the connecting gap of the non-metallic pipeline to limit the plurality of probes 2, at this time, the connecting gap is inside the plurality of probes 2 arranged in an array. Select a suitable top plate 1 according to the size of the non-metallic pipeline and the connecting gap. The position of the plurality of probes 2 is adjusted in real time by using the horizontal groove 4 and the vertical groove 5 on the surface of the top plate 1, which is convenient to adjust the array arrangement mode of the plurality of probes 2 on the bottom surface of the top plate 1, and convenient for the plurality of probes 2 to transmit the data information of the gap collision sound to the receiver through the connecting rod 3. The cross-correlation method is used to enhance the sound signal generated by the internal detector inside the non-metallic pipeline, effectively improving the signal-to-noise ratio of the signal. The burial depth and planar position of the non-metallic pipeline can be accurately detected according to the data information.

[0028] Exemplarily, when it is necessary to detect the non-metallic pipeline, the non-metallic pipeline can also be detected by means of acoustic wave detection. The detection process is as follows:

[0029] Specific frequency sound waves can be sent into the interior of a non-metallic pipeline through a sound wave emitter. When the sound waves are transmitted inside the non-metallic pipeline, part of the sound waves will pass through the non-metallic pipeline and be transmitted to the ground. By inserting multiple probes 2 at the top of the ground where the non-metallic pipeline is located, the multiple probes 2 are used to receive the sound waves. The receiver converts the physical signal of the sound waves into an electrical signal, and with the assistance of software algorithms, the sound wave intensity on the ground at the top of the non-metallic pipeline can be obtained. By connecting multiple high-intensity sound wave points, the burial depth and planar position of the non-metallic pipeline can be obtained.

[0030] In Figure 2 it is described that the connection structure includes two connection frames 8. The top end of the probe 2 is fixedly connected to the connecting rod 3 by a limiting frame 9. The bottom end of the probe 2 is provided with a detection head 10, and the detection head 10 is connected to the receiver through the connecting rod 3 at the top of the probe 2 and the limiting frame 9. The connection frame 8 is rotatably sleeved on the surface of the limiting frame 9. At this time, the two connection frames 8 are arranged oppositely, and the surfaces of the two connection frames 8 are correspondingly connected by a limiting sleeve 11. With the cooperation of the limiting frame 9 and the limiting sleeve 11, at this time, both probes 2 are correspondingly connected to the limiting sleeve 11 by the connection frame 8. With the cooperation of the connection frame 8 and the limiting sleeve 11, it is convenient to respectively limit the connecting rods 3 at the top ends of the two probes 2 inside the horizontal groove 4 and the vertical groove 5. After limiting the two detection groups, after adjusting the array of multiple probes 2 according to the two horizontal grooves 4 and the two vertical grooves 5, the detection heads 10 at the bottom ends of the probes 2 are correspondingly inserted into the ground, and it is convenient to receive the gap collision sound signals generated by the inner detector and the connection gap by the detection heads 10.

[0031] In Figure 2 it is described that two limiting grooves 12 are provided on both the top surface and the bottom surface of the limiting sleeve 11, and the two connection frames 8 are correspondingly arranged with the two limiting grooves 12 respectively. The end of the connection frame 8 is slidably matched with the limiting groove 12 by a clamping rod 13. A fastening sleeve 14 is screwed on the top of the clamping rod 13, and the bottom surface of the fastening sleeve 14 is attached to the top surface of the limiting sleeve 11. When the probe 2 is correspondingly installed on the selected top plate 1, according to the relative distance between the outer end of the horizontal groove 4 and the inner end of the vertical groove 5, the relative distance between the two probes 2 is adjusted, so that the two probes 2 of each detection group are respectively correspondingly matched with the horizontal groove 4 and the vertical groove 5. Loosen the fastening sleeve 14 and pull the end of the connection frame 8 to move inside the limiting sleeve 11. At this time, the connection frame 8 moves inside the limiting groove 12 by the clamping rod 13. Until the two probes 2 move to the appropriate positions, tighten the fastening sleeve 14. The spiral effect of the fastening sleeve 14 and the clamping rod 13 is used to conveniently fix the end of the connection frame 8 to the limiting sleeve 11, thereby limiting the relative distance between the two probes 2, facilitating the two detection groups to be adapted to different sizes of the top plate 1, and using the two detection groups to detect different non-metallic pipelines.

[0032] In Figure 1 and Figure 3Among them, the vertical groove 5 includes an arc groove and a straight groove. The arc groove is inside the straight groove. The center of the arc groove coincides with the outer end of the horizontal groove 4. And the two probes 2 of the detection group are respectively located at the outer end of the horizontal groove 4 and the inner end of the arc groove. At this time, the four probes 2 are arranged side by side at the bottom of the top plate 1. When adjusting the array arrangement of the probes 2 at the bottom of the top plate 1, push the two probes 2 in the middle to move. Both detection groups use the connecting rod 3 at the top of the probe 2 to slide inside the arc groove of the vertical groove 5 until it moves to the connection between the arc groove and the straight groove. Since the center of the arc groove is at the outer end of the horizontal groove 4, each detection group rotates around the probe 2 connected to the outer end of the horizontal groove 4. After adjusting the position of the probe 2, the size of the array composed of multiple probes 2 can be known, and a suitable non-metal pipe can be detected according to the size of the array. When the connecting rod 3 at the top of the probe 2 continues to move inside the straight groove of the vertical groove 5, the probe 2 uses the connection structure to pull the probes 2 of the same detection group. At this time, the probes 2 of the same group move inside the horizontal groove 4, and the relative distance between the two probes 2 of the same group remains unchanged until multiple probes 2 can be adjusted to a suitable position at the bottom of the top plate 1.

[0033] Exemplarily, when it is necessary to adjust the size of the array to the maximum, when sliding the probe 2 inside the vertical groove 5 using the connecting rod 3, loosen the fastening sleeve 14 so that the probe 2 moves to the outer end of the vertical groove 5, and the probes 2 of the same group are located at the outer end of the horizontal groove 4. Tighten the fastening sleeve 14. At this time, the array composed of multiple probes 2 reaches the maximum area, and the actual size of the array can be adjusted on the bottom surface of the top plate 1 according to requirements.

[0034] In Figure 1 and Figure 4 Among them, limiting structures for stabilizing the top plate 1 are connected to the four corners of the top plate 1. The limiting structure includes a rotating frame 15. A ring groove 16 that rotates in cooperation with the rotating frame 15 is provided at the corner of the top plate 1. A ring belt 17 is provided on the top surface of the top plate 1, and the ring belt 17 sleeved around the surfaces of multiple rotating frames 15. Multiple rotating frames 15 are rotationally matched by means of the ring belt 17. Before limiting the position of the probe 2, after knowing the position of the non-metal pipe, it is convenient to install the top plate 1 on the ground using the limiting structure. At this time, the top plate 1 is installed on the top of the non-metal pipe using the limiting structure. The connection between the limiting structure and the bottom surface ensures the stability of the top plate 1, and it can ensure that the probe 2 at the bottom of the top plate 1 is stably located on the top of the non-metal pipe, improving the stability of the probe 2 during the detection process and avoiding the increase in detection errors caused by swaying. Each limiting structure is independently provided, and multiple limiting structures are used to stabilize the top plate 1. The top of the rotating frame 15 protrudes from the top surface of the top plate 1, and the bottom side of the ring belt 17 is attached to the top surface of the top plate 1.

[0035] In Figure 1 and Figure 4Among them, the limiting structure further includes a chassis 18. The top end of the chassis 18 is fixedly connected to the bottom surface of the top plate 1, and a plurality of chassis 18 are evenly distributed at the four corners of the bottom surface of the top plate 1. A plurality of chassis 18 are arranged in one-to-one correspondence with a plurality of rotating frames 15. A movable rod 19 is sleeved at the center of the chassis 18. The bottom end of the movable rod 19 extends out of the bottom end of the chassis 18. A screw rod 20 is spirally inserted into the movable rod 19. The bottom end of the screw rod 20 is flush with the bottom end of the movable rod 19, and the top end of the screw rod 20 spirally penetrates through the center of the rotating frame 15. Among them, the screw rod 20 is set as a square-round rod, and a square-round groove that slidably cooperates with the screw rod 20 is arranged inside the movable rod 19, which facilitates the up and down movement of the screw rod 20 inside the movable rod 19. After placing the top plate 1 on the ground, at this time, the bottom end of the screw rod 20 is flush with the bottom end of the movable rod 19. When the rotating frame 15 is rotated, when the rotating frame 15 rotates on the top surface of the top plate 1 by using the annular groove 16, the rotating frame 15 drives other rotating frames 15 to rotate synchronously by using the annular belt 17. Due to the limitation of the screw rod 20 by the movable rod 19 using the square-round groove, the spiral effect of the rotating frame 15 and the screw rod 20 causes the screw rod 20 to move downward inside the rotating frame 15, and the bottom end of the screw rod 20 gradually gets stuck into the ground. By using the snap connection between the screw rod 20 and the ground, the installation stability of the top plate 1 and the bottom surface is ensured. When adjusting the screw rod 20 by rotating the rotating frame 15, a single rotating frame 15 can be rotated alone, and the distance that the bottom end of a single screw rod 20 extends out of the bottom end of the movable rod 19 can be adjusted alone. The top plate 1 can be horizontally and stably installed on the ground on uneven ground, ensuring the stability of the top plate 1.

[0036] In Figure 1 and Figure 4 Among them, a plurality of strip grooves 21 are arranged on the surface of the chassis 18, and the movable rod 19 is externally connected with a sliding sleeve 22 by using the plurality of strip grooves 21. The movable rod 19 is slidably matched with the chassis 18 up and down by using the sliding sleeve 22. The top surface of the sliding sleeve 22 is fixedly connected to the bottom surface of the top plate 1 by using a spring 23. When the top plate 1 is correspondingly placed on the ground, at this time, the weight of the top plate 1 causes the bottom end of the movable rod 19 to impact the ground, and the impact force received by the top plate 1 is absorbed by the elastic force of the spring 23. After the top plate 1 is installed on the ground, when an external object impacts on the top surface of the top plate 1, at this time, when the top plate 1 continues to insert into the bottom surface by using the screw rod 20, the top plate 1 squeezes the spring 23 by using the sliding sleeve 22, avoiding the severe inclination of the top plate 1 on the ground top surface caused by the impact of an external object, and being able to minimize the influence of the inclined top plate 1 on the probe 2 as much as possible.

[0037] The working principle of the present invention:

[0038] Referring to the attached drawings of the specification Figure 1-4, loosen the fastening sleeve 14, pull the end of the connecting frame 8 to move inside the limiting sleeve 11. At this time, the connecting frame 8 moves inside the limiting groove 12 by using the clamping rod 13. After the two probes 2 move to appropriate positions, tighten the fastening sleeve 14. The spiral effect of the fastening sleeve 14 and the clamping rod 13 is used to conveniently fix the end of the connecting frame 8 to the limiting sleeve 11, thereby limiting the relative distance between the two probes 2, facilitating the two detection groups to adapt to different sizes of the top plate 1, and using the two detection groups to detect different non-metallic pipelines.

[0039] The connecting rods 3 respectively connected to the four probes 2 penetrate the outer ends of the two transverse grooves 4 and the inner ends of the two vertical grooves 5. At this time, the multiple probes 2 are arranged in parallel side by side at the bottom of the top plate 1. When it is necessary to detect the burial depth and planar position of the non-metallic pipeline inside the ground, after the two detection groups are arranged in an array on the bottom surface of the top plate 1 in cooperation with the two transverse grooves 4 and the two vertical grooves 5, the multiple probes 2 are correspondingly limited at the top of the position where the non-metallic pipeline is located.

[0040] When adjusting the array arrangement of the probes 2 at the bottom of the top plate 1, push the two probes 2 in the middle to move. Both detection groups use the connecting rods 3 at the tops of the probes 2 to slide inside the arc-shaped grooves of the vertical grooves 5 until they move to the connection between the arc-shaped groove and the straight groove. Since the center of the arc-shaped groove is at the outer end of the transverse groove 4, each detection group rotates with the probe 2 connected to the outer end of the transverse groove 4 as the center. After adjusting the positions of the probes 2, the size of the array composed of multiple probes 2 can be known, and the appropriate non-metallic pipeline can be selected for detection according to the size of the array. When the connecting rod 3 at the top of the probe 2 continues to move inside the straight groove of the vertical groove 5, the probe 2 uses the connection structure to pull the probes 2 of the same detection group. At this time, the probes 2 of the same group move inside the transverse groove 4, and the relative distance between the two probes 2 of the same group remains unchanged until the multiple probes 2 can be adjusted to appropriate positions at the bottom of the top plate 1.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Multi-probe array receiving device for detecting the burial depth and planar position of non-metallic pipelines, Characterized in that: It includes a top plate (1), on the bottom surface of the top plate (1), four probes (2) are arranged in parallel side by side. The top ends of the probes (2) penetrate through the top plate (1) by connecting rods (3), and all four probes (2) are externally connected to a receiver by connecting rods (3). On the top surface of the top plate (1), there are multiple sliding grooves, and the connecting rods (3) are slidably matched with the sliding grooves. The multiple sliding grooves include two horizontal grooves (4) and two vertical grooves (5). The two horizontal grooves (4) are arranged oppositely, and the two vertical grooves (5) are arranged oppositely. The four probes (2) are respectively arranged in one-to-one correspondence with the two horizontal grooves (4) and the two vertical grooves (5). A nut (6) is spirally sleeved on the top end of the connecting rod (3), and a clamping column (7) for limiting and cooperating with the sliding groove is arranged at the bottom end of the connecting rod (3). The four probes (2) are relatively arranged into two detection groups, and each detection group is correspondingly connected by a connecting structure. The two probes (2) of each detection group are respectively corresponding to the horizontal groove (4) and the vertical groove (5), and the two detection groups are arranged in an interleaved and corresponding manner. The two detection groups are arranged in an array on the bottom surface of the top plate (1) by two connecting structures.

2. The multi-probe array receiving device for detecting the burial depth and planar position of non-metallic pipelines according to claim 1, Characterized in that: The connecting structure includes two connecting frames (8). The top end of the probe (2) is fixedly connected to the connecting rod (3) by a limiting frame (9). A detection head (10) is arranged at the bottom end of the probe (2), and the detection head (10) is connected to the receiver by the connecting rod (3) passing through the probe (2) and the top end of the limiting frame (9). The connecting frame (8) is rotatably sleeved on the surface of the limiting frame (9). At this time, the two connecting frames (8) are arranged oppositely, and the surfaces of the two connecting frames (8) are correspondingly connected by a limiting sleeve (11).

3. The multi-probe array receiving device for detecting the burial depth and planar position of non-metallic pipelines according to claim 2, Characterized in that: Two limiting grooves (12) are arranged on both the top surface and the bottom surface of the limiting sleeve (11), and the two connecting frames (8) are respectively arranged in correspondence with the two limiting grooves (12). The end of the connecting frame (8) is slidably matched with the limiting groove (12) by a clamping rod (13). A fastening sleeve (14) is spirally connected to the top end of the clamping rod (13), and the bottom surface of the fastening sleeve (14) is attached to the top surface of the limiting sleeve (11).

4. The multi-probe array receiving device for detecting the burial depth and planar position of non-metallic pipelines according to claim 2, Characterized in that: The vertical groove (5) includes an arc groove and a straight groove. The arc groove is inside the straight groove. The center of the arc groove coincides with the outer end of the horizontal groove (4), and the two probes (2) of the detection group are respectively located at the outer end of the horizontal groove (4) and the inner end of the arc groove. At this time, the four probes (2) are arranged side by side at the bottom of the top plate (1).

5. The multi-probe array receiving device for detecting the burial depth and planar position of non-metallic pipelines according to claim 1, Characterized in that: At four corners of the top plate (1), there are provided structure for stabilizing the top plate (1), and the structure for stabilization includes a rotating frame (15). At the corner of the top plate (1), there is provided an annular groove (16) which is rotationally matched with the rotating frame (15). On the top surface of the top plate (1), there is provided an annular band (17), and the annular band (17) is sleeved on the surfaces of a plurality of rotating frames (15), and the plurality of rotating frames (15) are rotationally matched by means of the annular band (17).

6. The multi-probe array receiving device for detecting the buried depth and planar position of a non-metallic pipeline according to claim 5, characterized in that: Each of the single structure for stabilization is independently provided, and a plurality of structures for stabilization are used for stabilizing the top plate (1). The top end of the rotating frame (15) protrudes from the top surface of the top plate (1), and the bottom side of the annular band (17) is in contact with the top surface of the top plate (1).

7. The multi-probe array receiving device for detecting the buried depth and planar position of a non-metallic pipeline according to claim 5, characterized in that: The structure for stabilization further includes a bottom frame (18). The top end of the bottom frame (18) is fixedly connected to the bottom surface of the top plate (1), and a plurality of bottom frames (18) are uniformly distributed at four corners of the bottom surface of the top plate (1). The plurality of bottom frames (18) are arranged in one-to-one correspondence with the plurality of rotating frames (15). A movable rod (19) is sleeved at the center of the bottom frame (18). The bottom end of the movable rod (19) extends out of the bottom end of the bottom frame (18). A screw rod (20) is spirally inserted into the movable rod (19). The bottom end of the screw rod (20) is flush with the bottom end of the movable rod (19), and the top end of the screw rod (20) spirally penetrates through the center of the rotating frame (15).

8. The multi-probe array receiving device for detecting the buried depth and planar position of a non-metallic pipeline according to claim 7, characterized in that: A plurality of strip grooves (21) are provided on the surface of the bottom frame (18), and the movable rod (19) is externally connected with a sliding sleeve (22) by means of the plurality of strip grooves (21). The movable rod (19) is slidably matched with the bottom frame (18) up and down by means of the sliding sleeve (22). The top surface of the sliding sleeve (22) is fixedly connected to the bottom surface of the top plate (1) by means of a spring (23).

Images