An audio emitting device for underground pipeline location
By designing an audio transmitter for underground pipelines, the problem of slow underground pipeline detection speed was solved, enabling rapid and accurate pipeline location and improving detection efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN PUQI NEW ENERGY RES INST CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, the detection speed of underground pipelines is relatively slow, which affects the detection efficiency. This is mainly because the sound wave signal weakens quickly when struck, requiring multiple acquisitions.
Design an audio transmitting device, including a cylinder, an audio unit, and a fixing mechanism. By clamping and fixing the end of an underground pipe, the audio unit sends a specific audio signal into the underground pipe to quickly determine the pipe's direction.
It improves the speed and efficiency of underground pipeline inspection, and enables rapid and accurate pipeline location by transmitting audio signals.
Smart Images

Figure CN224501488U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline routing and positioning technology, and in particular to an audio transmitting device for locating the routing of underground pipelines. Background Technology
[0002] Underground pipelines are located in complex and variable environments, and are affected by various factors such as soil conditions, surrounding buildings and traffic loads. When inspecting underground pipelines, it is necessary to first determine the route of the underground pipeline.
[0003] Currently, the main method for detecting underground pipelines in cities is to use a striking device to tap the pipe wall at the end of the pipe so that the sound signal spreads along the direction of the pipe's extension. This sound signal is then collected by a data acquisition device. However, the sound wave signal weakens quickly, requiring the data acquisition device to collect data repeatedly, which slows down the detection speed and affects the efficiency of underground pipeline detection. Utility Model Content
[0004] The main purpose of this invention is to provide an audio transmitting device for locating the direction of underground pipelines, aiming to solve the problem of slow detection speed, which affects the detection efficiency of underground pipelines.
[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows:
[0006] An audio transmitting device for locating the direction of an underground pipeline includes a cylindrical body, an audio unit, and two fixing mechanisms. The cylindrical body forms a receiving space, and the audio unit is disposed within the receiving space. One end of the cylindrical body has a port connecting to the receiving space, which allows the end of an underground pipeline to pass through and be inserted into the receiving space to connect with the audio unit. The two fixing mechanisms are disposed on the outside of the cylindrical body at the port, symmetrically arranged along the central axis of the cylindrical body, and a clamping space is formed between the two fixing mechanisms. The clamping space allows the underground pipeline inserted into the receiving space to pass through, so that the two fixing mechanisms clamp and fix the underground pipeline inserted into the receiving space.
[0007] Preferably, the fixing mechanism includes a mounting plate, a pressure spring, and a half-tube. The mounting plate is parallel to the axial direction of the cylinder and is connected to the end of the cylinder where the insertion port is located. The half-tube is disposed on the side of the mounting plate facing the clamping space, and the inner arc surface of the half-tube faces the clamping space. The pressure spring is located between the mounting plate and the half-tube, with one end of the pressure spring connected to the mounting plate and the other end of the pressure spring connected to the half-tube.
[0008] Preferably, the mounting plate has a connecting screw hole; the fixing mechanism further includes a stud, which is threaded into the connecting screw hole so that one end of the stud passes through the pressure spring and abuts against the half tube.
[0009] Preferably, a rotating handle is provided on the side of the mounting plate away from the half-tube, and the end of the stud away from the half-tube is connected to the rotating handle.
[0010] Preferably, a flexible layer is provided on the side of the half-tube facing the clamping space.
[0011] Preferably, a housing is disposed inside the cylinder, and the housing is detachably disposed on the side of the cylinder away from the socket; a transmitting through hole is provided on the side of the housing facing the socket, the audio unit is disposed inside the housing, and the output end of the audio unit is disposed inside the transmitting through hole; the transmitting through hole and the cylinder are coaxially arranged.
[0012] Preferably, a sealing layer is provided on one side of the housing where the emission through hole is opened, and the sealing layer and the housing are detachably connected; the sealing layer is arranged around the emission through hole.
[0013] Preferably, the sealing layer includes a foam layer, a first adhesive layer and a second adhesive layer arranged sequentially; the first adhesive layer is disposed on the side of the foam layer facing the housing, and the second adhesive layer is disposed on the side of the housing where the emission through hole is opened, and the first adhesive layer and the second adhesive layer are detachably connected.
[0014] Preferably, a detachable cover is provided at the end of the cylinder away from the inlet, and the housing is detachably disposed on the side of the cover facing the inlet.
[0015] Compared with the prior art, the present invention has at least the following beneficial effects:
[0016] The end of the underground pipe is passed through the clamping space and inserted into the receiving space through the socket to connect the audio unit. Then, the cylinder and the underground pipe are detachably fixed by two fixing mechanisms. Finally, the audio unit is activated so that it sends a specific audio signal into the underground pipe, so that the acquisition equipment can quickly determine the direction of the underground pipe. Attached Figure Description
[0017] 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 the structures shown in these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of an embodiment of the audio transmitting device for locating the direction of underground pipelines according to the present invention.
[0019] Figure 2 This is a schematic diagram of the internal structure of the cylinder.
[0020] Explanation of icon numbers:
[0021] 1-Cylinder body; 11-Accommodation space; 12-Insert port; 13-Clamping space; 14-Lid body;
[0022] 2-Fixing mechanism; 21-Mounting plate; 22-Compression spring; 23-Half tube; 24-Stud; 25-Rotating handle; 26-Connecting screw hole;
[0023] 3-Audio unit; 31-Housing; 32-Emitting through hole; 33-Sealing layer;
[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0027] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0030] This invention proposes an audio transmitting device for locating the direction of underground pipelines.
[0031] like Figure 1 and Figure 2 An audio transmitting device for locating the direction of an underground pipeline is shown, comprising a cylindrical body 1, an audio unit 3, and two fixing mechanisms 2. The cylindrical body 1 forms a receiving space 11, and the audio unit 3 is disposed within the receiving space 11. One end of the cylindrical body 1 has an insertion port 12 that connects to the receiving space 11. The insertion port 12 is used for the end of the underground pipeline to pass through and be inserted into the receiving space 11 to connect with the audio unit 3. The two fixing mechanisms 2 are disposed at the insertion port 12 on the outside of the cylindrical body 1. The two fixing mechanisms 2 are symmetrically arranged along the central axis of the cylindrical body 1, and a clamping space 13 is formed between the two fixing mechanisms 2. The clamping space 13 is used for the underground pipeline inserted into the receiving space 11 to pass through, so that the two fixing mechanisms 2 clamp and fix the underground pipeline inserted into the receiving space 11.
[0032] The end of the underground pipe is passed through the clamping space 13 and inserted into the receiving space 11 through the socket 12 to connect with the audio unit 3. Then, the cylinder 1 and the underground pipe are detachably fixed by two fixing mechanisms 2. Finally, the audio unit 3 is activated so that the audio unit 3 sends a specific audio signal into the underground pipe so that the acquisition device can quickly determine the direction of the underground pipe.
[0033] The fixing mechanism 2 includes a mounting plate 21, a pressure spring 22, and a half-tube 23. The mounting plate 21 is parallel to the axial direction of the cylinder 1 and is connected to the end of the cylinder 1 where the insertion port 12 is located. The half-tube 23 is disposed on the side of the mounting plate 21 facing the clamping space 13, with its inner arc surface facing the clamping space 13. The pressure spring 22 is located between the mounting plate 21 and the half-tube 23, with one end of the pressure spring 22 connected to the mounting plate 21 and the other end connected to the half-tube 23. By using two half-tubes 23 in conjunction with two pressure springs 22, the cylinder 1 can accommodate underground pipes of more sizes.
[0034] Mounting plate 21 has connecting screw holes 26; the fixing mechanism 2 also includes a stud 24, which is threaded into the connecting screw holes 26 so that one end of the stud 24 passes through the pressure spring 22 and abuts against the half-pipe 23. The stud 24 can further improve the clamping strength of the fixing mechanism 2, ensuring that the two fixing mechanisms 2 firmly fix the cylinder 1 and the underground pipeline.
[0035] A rotating handle 25 is provided on the side of the mounting plate away from the half-pipe 23, and the end of the stud 24 away from the half-pipe 23 is connected to the rotating handle 25. The rotating handle 25 makes it easier to adjust the tightness of the clamping of the two half-pipes 23 onto the underground pipeline.
[0036] A flexible layer is provided on the side of the half-pipe 23 facing the clamping space 13. The flexible layer makes it easier for the two half-pipes 23 to clamp and fix the underground pipeline.
[0037] A housing 31 is provided inside the cylindrical body 1. The housing 31 is detachably located inside the cylindrical body 1 on the side away from the socket 12. A transmission through hole 32 is provided on the side of the housing 31 facing the socket 12. An audio unit 3 is located inside the housing 31, and the output end of the audio unit 3 is located inside the transmission through hole 32. The transmission through hole 32 and the cylindrical body 1 are coaxially arranged.
[0038] Specifically, the shell 31 is cylindrical.
[0039] A sealing layer 33 is provided on one side of the housing 31 where the emission through hole 32 is opened. The sealing layer 33 and the housing 31 are detachably connected. The sealing layer 33 is arranged around the emission through hole 32.
[0040] The sealing layer 33 includes a foam layer, a first adhesive layer, and a second adhesive layer arranged sequentially. The first adhesive layer is located on the side of the foam layer facing the housing 31, and the second adhesive layer is located on the side of the housing 31 where the emission through-hole 32 is located. The first and second adhesive layers are detachably connected. The detachable design of the sealing layer 33 makes it easier to select a foam layer of the appropriate size according to the size of the underground pipeline.
[0041] Specifically, the first and second adhesive layers are Velcro.
[0042] Specifically, the first adhesive layer, the second adhesive layer, and the foam layer are all annular.
[0043] A removable cover 14 is provided at the end of the cylinder 1 away from the socket 12, and the housing 31 is detachably disposed on the side of the cover 14 facing the socket 12. Before transmitting a specific audio frequency, the cover 14 is removed, and by comparing the underground pipe and the foam layer, a foam layer of the corresponding size is selected for the side of the housing 31 where the transmission through hole 32 is opened, so that the end of the underground pipe abuts against the foam layer when inserted into the receiving space 11.
[0044] Specifically, the cover 14 and the cylinder 1 are detachably threaded.
[0045] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. An audio transmitting device for locating the direction of underground pipelines, characterized in that, The device includes a cylindrical body, an audio unit, and two fixing mechanisms. The cylindrical body forms a receiving space, and the audio unit is disposed within this space. One end of the cylindrical body has a port connecting to the receiving space, which allows the end of an underground pipe to pass through and be inserted into the receiving space to connect with the audio unit. The two fixing mechanisms are disposed on the outside of the cylindrical body at the port, symmetrically arranged along the central axis of the cylindrical body, and forming a clamping space between them. This clamping space allows an underground pipe inserted into the receiving space to pass through, so that the two fixing mechanisms clamp and fix the underground pipe inserted into the receiving space.
2. The audio transmitting device for locating the direction of underground pipelines according to claim 1, characterized in that, The fixing mechanism includes a mounting plate, a pressure spring, and a half-tube. The mounting plate is parallel to the axial direction of the cylinder and is connected to the end of the cylinder where the insertion port is located. The half-tube is disposed on the side of the mounting plate facing the clamping space, and the inner arc surface of the half-tube faces the clamping space. The pressure spring is located between the mounting plate and the half-tube, with one end of the pressure spring connected to the mounting plate and the other end of the pressure spring connected to the half-tube.
3. An audio transmitting device for locating the direction of underground pipelines according to claim 2, characterized in that, The mounting plate has a connecting screw hole; the fixing mechanism also includes a stud, which is threaded into the connecting screw hole so that one end of the stud passes through the pressure spring and abuts against the half tube.
4. An audio transmitting device for locating the direction of underground pipelines according to claim 3, characterized in that, A rotating handle is provided on the side of the mounting plate away from the half-tube, and the end of the stud away from the half-tube is connected to the rotating handle.
5. An audio transmitting device for locating the direction of underground pipelines according to claim 2, characterized in that, A flexible layer is provided on the side of the half-tube facing the clamping space.
6. An audio transmitting device for locating the direction of underground pipelines according to any one of claims 1-5, characterized in that, The cylinder is provided with a housing, which is detachably disposed on the side of the cylinder away from the socket; the side of the housing facing the socket is provided with a transmission through hole, the audio unit is disposed in the housing, and the output end of the audio unit is disposed in the transmission through hole; the transmission through hole and the cylinder are coaxially arranged.
7. An audio transmitting device for locating the direction of underground pipelines according to claim 6, characterized in that, A sealing layer is provided on one side of the housing where the emission through hole is opened, and the sealing layer and the housing are detachably connected; the sealing layer is arranged around the emission through hole.
8. An audio transmitting device for locating the direction of underground pipelines according to claim 7, characterized in that, The sealing layer includes a foam layer, a first adhesive layer and a second adhesive layer arranged sequentially; the first adhesive layer is disposed on the side of the foam layer facing the housing, and the second adhesive layer is disposed on the side of the housing where the emission through hole is opened; the first adhesive layer and the second adhesive layer are detachably connected.
9. An audio transmitting device for locating the direction of underground pipelines according to claim 7, characterized in that, A detachable cover is provided at the end of the cylinder away from the inlet, and the housing is detachably disposed on the side of the cover facing the inlet.