Multi-tuning-fork mechanical leakage listening rod
By designing a multi-tuning fork mechanical leak detection rod, the problems of fixed rod length and insufficient number of tuning forks in existing leak detection rods are solved, achieving high sensitivity and high accuracy in leak detection of deeper pipes.
Patent Information
- Application Number
- CN202520503492.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Existing listening rods have a fixed length, making it impossible to detect deep pipes. The limited number of tuning forks results in insufficient detection sensitivity and accuracy, making it difficult to pinpoint leaks, especially in complex pipe layouts or hidden leak points.
A multi-tuning fork mechanical leak detection rod was designed. Through an adjustable-length support rod and multiple sets of tuning forks, combined with a sound amplification cover and a listening cover, the sound transmission and frequency resolution are improved, thereby enhancing the sensitivity and accuracy of leak detection.
It enables effective detection of deeper pipes, improves the sensitivity and accuracy of leak detection, and can more precisely distinguish sound frequencies to accurately locate leak points.
Smart Images
Figure CN223726111U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipeline detection technical field, especially a kind of multi-prong mechanical listening leak rod. BACKGROUND
[0002] Listening leak rod is a kind of tool specially used for detecting underground pipeline leakage, by contacting the surface of the pipeline to be detected, collecting and amplifying weak leakage sound difficult to directly hear due to air insulation and external interference, listening leak rod is simple to operate, but accurate judgment of leakage point needs rich experience, usually made of high-quality sound transmission material, such as aluminum alloy, to improve sound transmission effect, it is widely used in city water supply pipeline, valve leakage detection, and pipeline and equipment fault detection in petroleum, chemical industry, coal mine and other industries.
[0003] The existing listening leak rod is usually detected by contacting the exposed point of the pipeline with the prong of the listening leak rod, but the use length of the listening leak rod is fixed, and it cannot be deeply inserted into some deep pipelines for detection, thereby limiting its application range, and a group of prongs in front of the listening leak rod is usually used to detect the pipeline, and the small number of prongs means that the frequency range of the sound that can be captured is limited, and all types of leakage sound cannot be accurately identified, thereby reducing the sensitivity of detection, and the specific position of the leakage point cannot be accurately positioned, especially in the case of complex pipeline layout or hidden leakage point. SUMMARY
[0004] The purpose of this section is to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the present utility model.
[0005] To solve the above technical problems, the present utility model provides the following technical solutions:
[0006] A multi-prong mechanical listening leak rod, comprising a support rod, a mounting rod is installed at the top of the support rod, a listening leak assembly is arranged at the bottom of the support rod, a connecting rod for adjusting the use length is arranged at the top of the support rod, a sound transmission rod is arranged in the connecting rod and the mounting rod, and a mounting assembly for mounting the sound transmission rod is arranged on the outer side of the connecting rod;
[0007] The listening leak assembly comprises a listening disc fixed to the bottom of the support rod, a listening rod is fixed to the inner wall of the listening disc, an installation disc is fixed to the bottom of the listening rod, and a plurality of sound transmission prongs are fixed to the bottom of the installation disc;
[0008] The mounting assembly comprises a first flange plate fixed to the outside of the supporting rod for mounting a connecting rod, a second flange plate fixed to the outside of the connecting rod, a connecting sleeve fixed to the outside of the sound transmission rod, and a supporting ring fixed to the outside of the connecting sleeve for supporting the sound transmission rod.
[0009] As a preferred scheme of the multi-prong mechanical listening leak rod, the top of the mounting rod is fixed with a shell, and an audio amplifier cover for amplifying the listening leak sound is arranged in the shell.
[0010] As a preferred scheme of the multi-prong mechanical listening leak rod, the outside of the shell is provided with a protective shell, and an audio listening cover is arranged on the inner wall of the protective shell.
[0011] As a preferred scheme of the multi-prong mechanical listening leak rod, a threaded sleeve is threadedly connected to the inner wall of the audio listening disc, and an audio listening plate for contacting the surface of the pipeline for listening leak is fixed to the bottom of the threaded sleeve.
[0012] As a preferred scheme of the multi-prong mechanical listening leak rod, the supporting rod and one end of the connecting rod are provided with sealing pads for improving the sound transmission sealing performance, and the sealing pads are made of rubber.
[0013] As a preferred scheme of the multi-prong mechanical listening leak rod, the bottom of the protective shell is fixed with a mounting block, and the mounting block and the shell are fixed by bolts.
[0014] As a preferred scheme of the multi-prong mechanical listening leak rod, the outside of the supporting rod is fixed with a plurality of connecting plates, and the outside of the connecting plates is fixed with a protective plate for protecting the supporting rod.
[0015] The first flange plate and the second flange plate are fixed by bolts, the connecting rod can be mounted between the supporting rod and the mounting rod, the length of use can be adjusted, the problem of insufficient length when detecting deep underground pipelines is avoided, a plurality of sound transmission forks are arranged, the sound frequency can be more finely distinguished, the sensitivity and accuracy of the water leakage detection are improved, the sound transmission fork transmits the sound to the sound transmission rod through the audio listening rod, the audio amplifier cover amplifies the sound transmitted by the sound transmission rod, the sound frequency is distinguished through the audio listening cover, and the sensitivity and accuracy of the water leakage detection are improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor. Among them:
[0017] Figure 1 It is the overall structure diagram of the multi-prong mechanical listening leak rod.
[0018] Figure 2 It is the structural schematic diagram of the inside of the support rod in the multi-prong mechanical listening leak rod.
[0019] Figure 3 It is the structural schematic diagram of the listening leak assembly in the multi-prong mechanical listening leak rod.
[0020] Figure 4 It is the structural schematic diagram of the shell in the multi-prong mechanical listening leak rod.
[0021] Figure 5 It is Figure 2 The enlarged structural schematic diagram of A in the middle.
[0022] The reference numerals in the figure: 1, support rod; 2, mounting rod; 3, listening leak assembly; 31, listening disc; 32, listening rod; 33, mounting disc; 34, sound transmission fork; 4, connecting rod; 5, sound transmission rod; 6, mounting assembly; 61, first flange plate; 62, second flange plate; 63, connecting sleeve; 64, support ring; 7, shell; 8, sound amplification cover; 9, protective shell; 10, listening cover; 11, listening board; 12, threaded sleeve; 13, sealing gasket; 14, mounting block; 15, connecting plate; 16, protective plate. DETAILED DESCRIPTION
[0023] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.
[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.
[0025] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment.
[0026] Embodiment one:
[0027] With reference to Figures 1-5 For the first embodiment of the utility model, the embodiment provides a multi-pick mechanical listening leak rod, including support rod 1, the top of support rod 1 is equipped with mounting rod 2, the bottom of support rod 1 is provided with listening leak assembly 3, the top of support rod 1 is provided with the connecting rod 4 for adjusting the length of use, the inside of connecting rod 4 and mounting rod 2 is provided with sound transmission rod 5, the outside of connecting rod 4 is provided with the mounting assembly 6 for installing sound transmission rod 5.
[0028] Through listening leak assembly 3, the effect of detecting underground pipeline water leakage is achieved, connecting rod 4 can be installed between support rod 1 and mounting rod 2 through mounting assembly 6, the effect of adjusting the length of use is achieved, and the problem of insufficient length when detecting deeper underground pipeline is avoided.
[0029] Listening leak assembly 3 includes listening disc 31 fixed to the bottom of support rod 1, the inner wall of listening disc 31 is fixed with listening rod 32, the bottom of listening rod 32 is fixed with mounting disc 33, and the bottom of mounting disc 33 is fixed with multiple sound transmission forks 34.
[0030] Listening disc 31 is made of stainless steel, sound transmission rod 5 and listening rod 32 are made of aluminum alloy, and sound transmission fork 34 is made of aluminum alloy, by setting multiple sound transmission forks 34, the sound frequency can be distinguished more finely, and the sensitivity and accuracy of water leakage detection are improved, when sound transmission fork 34 contacts with underground water pipe, if the water pipe exists leakage, the leakage point will produce slight vibration, these vibrations will be transmitted to sound transmission fork 34, change the vibration characteristics of sound transmission fork 34, such as frequency, amplitude, etc., by detecting the change of vibration characteristics of sound transmission fork 34, whether the underground water pipe exists leakage can be judged, sound transmission fork 34 is aluminum alloy fork in the prior art, which will not be described here.
[0031] The mounting assembly 6 comprises a first flange plate 61 fixed to the outer side of the supporting rod 1 for mounting the connecting rod 4, the first flange plate 61 is fixed to the outer side of the top of the supporting rod 1 and the connecting rod 4, the second flange plate 62 is fixed to the outer side of the connecting rod 4, the second flange plate 62 is fixed to the outer side of the bottom of the connecting rod 4 and the mounting rod 2, the first flange plate 61 and the second flange plate 62 are fixed by bolts, the connecting rod 4 can be mounted between the supporting rod 1 and the mounting rod 2, so that the length is adjusted, the problem that the length is not enough when the deep underground pipeline is detected is avoided, the outer side of the sound transmission rod 5 is fixed with a connecting sleeve 63, the outer side of the connecting sleeve 63 is fixed with a supporting ring 64 for supporting the sound transmission rod 5, the sound receiving rod 32 is clamped with the inner wall of the connecting sleeve 63, the sound receiving rod 32 is in contact with the sound transmission rod 5 through the connecting sleeve 63, the sound transmission effect is guaranteed, the connecting sleeve 63 is made of copper, the sound transmission is less hindered, and the sound transmission rod 5 and the sound receiving rod 32 will not affect the sound transmission.
[0032] Embodiment two:
[0033] For the second embodiment of the utility model, the embodiment is based on the previous embodiment.
[0034] Specifically, the top of the mounting rod 2 is fixed with a shell 7, and the shell 7 is internally provided with a sound amplifier 8 for amplifying the sound of leakage.
[0035] The sound amplifier 8 is connected with the top of the sound transmission rod 5 in the mounting rod 2, and the sound amplified by the sound transmission rod 5.
[0036] Specifically, the outer side of the shell 7 is provided with a protective shell 9, and the inner wall of the protective shell 9 is provided with a sound receiving cover 10.
[0037] The sound receiving cover 10 is a metal mesh cover in the prior art, and the metal material has small sound attenuation, which helps to maintain the clarity and authenticity of the sound.
[0038] Specifically, the inner wall of the sound receiving disc 31 is threadedly connected with a threaded sleeve 12, the bottom of the threaded sleeve 12 is fixed with a sound receiving plate 11 for contacting the surface of the pipeline to receive the sound of leakage, and the sound receiving plate 11 is convenient to disassemble, so that the sound transmission fork 34 can directly contact the surface of the pipeline for detection in special cases.
[0039] The sound receiving plate 11 is installed in the sound receiving disc 31 through the threaded sleeve 12, the sound receiving plate 11 is made of aluminum alloy and has a wear-resistant coating on the surface.
[0040] Embodiment three:
[0041] For the third embodiment of the utility model, the embodiment is based on the previous two embodiments.
[0042] Specifically, the support rod 1 and one end of the connecting rod 4 are provided with a sealing gasket 13 for improving the sound transmission sealing performance, and the sealing gasket 13 is made of rubber material.
[0043] The sealing gasket 13 provides good sealing performance to prevent sound leakage, and is located between the support rod 1 and the connecting rod 4, and between the connecting rod 4 and the support rod 1.
[0044] Specifically, the bottom of the protective shell 9 is fixed with a mounting block 14, and the mounting block 14 is fixed with the shell 7 by bolts.
[0045] The mounting block 14 is fixed outside the shell 7 by bolts, and the protective shell 9 is installed.
[0046] Specifically, the outer side of the support rod 1 is fixed with a plurality of connecting plates 15, and the outer side of the connecting plate 15 is fixed with a protective plate 16 for protecting the support rod 1.
[0047] The support rod 1 is protected by the protective plate 16 to reduce wear when the support rod 1 is inserted into the underground pipeline.
[0048] In use, the sound board 11 is installed inside the sound disc 31 by the threaded sleeve 12, so that the sound board 11 contacts the surface of the pipeline to listen to the leakage. When the sound fork 34 and the sound board 11 contact the underground water pipe, if the water pipe leaks, the leakage point will produce slight vibration, which will be transmitted to the sound fork 34, changing the vibration characteristics of the sound fork 34, such as frequency, amplitude, etc. By detecting the change of the vibration characteristics of the sound fork 34, it can be judged whether the underground water pipe leaks. By setting a plurality of sound forks 34, the sound frequency can be distinguished more finely, and the sensitivity and accuracy of the water leakage detection are improved. The sound fork 34 transmits the sound to the sound rod 5 through the sound rod 32, the sound amplifier 8 amplifies the sound transmitted by the sound rod 5, and the sound frequency is distinguished through the sound amplifier 10, improving the sensitivity and accuracy of the water leakage detection. The first flange plate 61 and the second flange plate 62 are fixed by bolts, and the connecting rod 4 can be installed between the support rod 1 and the mounting rod 2, so as to adjust the length of use, avoid the problem of insufficient length when detecting the deeper underground pipeline, and the sound rod 32 is connected with the inner wall of the connecting sleeve 63, and the sound rod 32 is connected with the sound rod 5 through the connecting sleeve 63, which ensures the sound transmission effect. The connecting sleeve 63 is made of copper material, which has little hindrance to sound transmission and will not affect the sound transmission of the sound rod 5 and the sound rod 32.
[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.
Claims
1. A multi-tine mechanical listening probe comprising a support rod (1), characterized in that: The top of the support rod (1) is provided with a mounting rod (2), the bottom of the support rod (1) is provided with a listening leakage assembly (3), the top of the support rod (1) is provided with a connecting rod (4) for adjusting the length of use, the inside of the connecting rod (4) and the mounting rod (2) are provided with a sound transmission rod (5), and the outside of the connecting rod (4) is provided with a mounting assembly (6) for mounting the sound transmission rod (5). The listening leakage assembly (3) comprises a listening disc (31) fixed to the bottom of the support rod (1), an inside wall of the listening disc (31) is fixed with a listening rod (32), the bottom of the listening rod (32) is fixed with a mounting disc (33), and the bottom of the mounting disc (33) is fixed with a plurality of sound transmission forks (34). The mounting assembly (6) comprises a first flange plate (61) fixed to the outside of the support rod (1) and used for mounting the connecting rod (4), the outside of the connecting rod (4) is fixed with a second flange plate (62), the outside of the sound transmission rod (5) is fixed with a connecting sleeve (63), and the outside of the connecting sleeve (63) is fixed with a supporting ring (64) used for supporting the sound transmission rod (5).
2. The multiple-tine mechanical listening probe of claim 1, wherein: The top of the mounting rod (2) is fixed with a shell (7), and the inside of the shell (7) is mounted with a sound amplification cover (8) used for amplifying the listening leakage sound.
3. The multiple-tine mechanical listening probe of claim 2, wherein: The outside of the shell (7) is provided with a protective shell (9), and the inside wall of the protective shell (9) is mounted with a listening cover (10).
4. The multiple-tine mechanical listening probe of claim 1, wherein: The inside wall of the listening disc (31) is threadedly connected with a threaded sleeve (12), and the bottom of the threaded sleeve (12) is fixed with a listening plate (11) used for contacting the surface of the pipeline to listen to the leakage.
5. The multiple-tine mechanical listening probe of claim 1 wherein: The support rod (1) and one end of the connecting rod (4) are provided with sealing pads (13) used for improving the sound transmission sealing performance, and the sealing pads (13) are made of rubber.
6. The multiple-tine mechanical listening probe of claim 3 wherein: The bottom of the protective shell (9) is fixed with a mounting block (14), and the mounting block (14) and the shell (7) are fixed through bolts.
7. The multiple-tine mechanical listening probe of claim 1 wherein: The outside of the support rod (1) is fixed with a plurality of connecting plates (15), and the outside of the connecting plate (15) is fixed with a protective plate (16) used for protecting the support rod (1).