High-efficiency listening rod
By designing a portable and efficient listening rod, and adopting a threaded connection and high-strength nylon wire structure, the problems of difficult connector replacement and unstable placement of traditional listening rods have been solved, achieving efficient and stable equipment inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-26
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional listening sticks cannot quickly replace adapters and are prone to falling off when placed, reducing inspection efficiency.
Design a high-efficiency stethoscope stick that uses a spherical stethoscope component connected to various connectors via threads, including hollow threaded connectors, hollow stethoscope tubes, straight connectors, and amplifier connectors of different shapes. A high-strength nylon wire is installed in the center to achieve a portable structure and stable placement.
It improves the efficiency of auscultation and the stability of equipment inspection, and can accurately listen to subtle sounds during equipment operation. It is suitable for inspecting operating equipment such as motors, fans, and water pumps, ensuring the safe and efficient operation of the equipment.
Smart Images

Figure CN224066338U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial equipment operation and maintenance, and more specifically, it relates to a high-efficiency listening stick. Background Technology
[0002] In the field of industrial equipment operation and maintenance, listening rods, as a basic mechanical condition detection tool, are widely used in the fault diagnosis of rotating parts such as bearings, gears, and motors. The principle is to conduct sound wave signals generated by equipment vibration through the metal rod, so that operators can perceive abnormal vibration characteristics through hearing or touch, thereby judging whether there are hidden dangers such as wear, loosening or poor lubrication inside the equipment.
[0003] Traditional listening rods mostly use fixed probes, such as a single conical or planar structure, which cannot quickly change the adapter according to the surface characteristics of the equipment (such as flat, curved, or narrow). For example, a pointed probe is needed to test the motor bearing, while a horn-shaped amplification structure is needed to inspect the fan housing. Traditional tools require carrying multiple devices or temporary modifications, which seriously reduces the efficiency of inspection. At the same time, since the listening rod itself is a cylindrical structure, it is easy for the listening rod to fall off the placement surface if it is tilted or vibrates. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a high-efficiency listening stick.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency stethoscope, comprising a spherical stethoscope component, a hollow threaded connector connected to the inner side of one end of the spherical stethoscope component, a hollow stethoscope tube connected to the outer side of the other end of the hollow threaded connector, a straight connector connected to the other end of the hollow stethoscope tube, a horn-shaped connector or a pointed connector connected to the other end of the straight connector, a protrusion provided on the outer wall of the middle part of the hollow stethoscope tube, and a high-strength nylon wire threaded through and installed at the center of the hollow threaded connector, the hollow stethoscope tube and the straight connector, one end of the high-strength nylon wire being connected to the interior of the horn-shaped connector or the pointed connector.
[0006] As a further improvement to the technical solution of this utility model, the spherical stethoscope component has an internal thread groove on the outside of the connection point corresponding to the hollow threaded joint, and the outer surface of one end of the hollow threaded joint is provided with a first external thread matching the internal thread groove structure. The hollow threaded joint and the spherical stethoscope component are connected by threads.
[0007] As a further improvement to the technical solution of this utility model, the outer surface of the other end of the hollow threaded connector is provided with a second external thread, and the inner surface of one end of the hollow stethoscope tube is provided with a first internal thread that matches the second external thread structure. The hollow stethoscope tube and the hollow threaded connector are connected by threads.
[0008] As a further improvement to the technical solution of this utility model, an external threaded end tube is provided on the side of the hollow stethoscope tube away from the hollow threaded connector, and a second internal thread matching the structure of the external threaded end tube is provided on the inner surface of one end of the straight connector. The straight connector and the hollow stethoscope tube are connected by threads.
[0009] As a further improvement to the technical solution of this utility model, the connection between the protrusion and the outer wall of the hollow stethoscope tube is by welding.
[0010] As a further improvement to the technical solution of this utility model, a third internal thread is provided on the inner surface of one end of the straight connector away from the hollow stethoscope tube, and a horn-shaped connector end tube and a pointed connector end tube respectively are provided at one end of the horn-shaped connector and the pointed connector end tube connected inside the third internal thread.
[0011] As a further improvement to the technical solution of this utility model, the outer surfaces of the horn-shaped connector end tube and the pointed connector end tube are provided with external threads that match the third internal thread structure, and the horn-shaped connector and the pointed connector are connected to the end of the straight connector by threads.
[0012] The beneficial effects of this utility model are:
[0013] This utility model designs a portable, high-efficiency listening rod with high auscultation efficiency and easy assembly / disassembly. It is mainly used for equipment inspection. A horn-shaped or pointed connector can be selected according to equipment requirements. When inspecting equipment, the front end of the horn-shaped or pointed connector should be tightly attached to the equipment. Because the listening rod is entirely hollow, and a high-strength nylon wire is installed in the center, it facilitates sound propagation and reception, enabling precise listening to subtle sounds emitted during equipment operation. The heard sounds allow for timely analysis and judgment of equipment operation, laying a solid foundation for safe and efficient equipment operation. It is suitable for inspecting operating equipment such as motors, fans, and water pumps. The protruding blocks prevent rolling during placement, improving stability. Attached Figure Description
[0014] Figure 1 This is a cross-sectional view of Embodiment 1 of the present utility model.
[0015] Figure 2 This is a front view of Embodiment 1 of the present utility model.
[0016] Figure 3 This utility model Figure 1 Enlarged view of section A.
[0017] Figure 4 This utility model Figure 1 Enlarged view of section B.
[0018] Figure 5 This is a cross-sectional view of Embodiment 2 of the present invention.
[0019] The attached figures are labeled as follows: 1. Spherical stethoscope component; 2. Hollow threaded connector; 3. Hollow stethoscope tube; 4. Straight connector; 5. Horn-shaped connector; 6. Pointed connector; 101. Internal thread groove; 201. First external thread; 202. Second external thread; 301. First internal thread; 302. External thread end tube; 303. Protrusion; 401. Second internal thread; 402. Third internal thread; 501. Horn-shaped connector end tube; 601. Pointed connector end tube. Detailed Implementation
[0020] 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.
[0021] Example 1:
[0022] As attached Figure 1-4 The high-efficiency stethoscope shown includes a spherical stethoscope component 1. A hollow threaded connector 2 is connected to the inner side of one end of the spherical stethoscope component 1. A hollow stethoscope tube 3 is connected to the outer side of the other end of the hollow threaded connector 2. A straight connector 4 is connected to the other end of the hollow stethoscope tube 3. A horn-shaped connector 5 is connected to the other end of the straight connector 4. A protrusion 303 is provided on the outer wall of the middle part of the hollow stethoscope tube 3. A high-strength nylon wire is installed through the center of the hollow threaded connector 2, the hollow stethoscope tube 3 and the straight connector 4. One end of the high-strength nylon wire is connected to the inside of the horn-shaped connector 5.
[0023] Among them, the hollow threaded connector 2, the horn-shaped connector 5, and the pointed connector 6 all have 1mm holes drilled on their sides. A pin is installed at the drilled hole. After the high-strength nylon wire is threaded into the hollow stethoscope tube 3, the high-strength nylon wire is fixed on the pin to complete the installation of the high-strength nylon wire.
[0024] As attached Figure 1-3 As shown, the spherical stethoscope component 1 has an internal thread groove 101 on the outside of the connection point corresponding to the hollow threaded connector 2. The outer surface of one end of the hollow threaded connector 2 has a first external thread 201 that matches the structure of the internal thread groove 101. The hollow threaded connector 2 and the spherical stethoscope component 1 are connected by threads.
[0025] As attached Figure 1-3As shown, the outer surface of the other end of the hollow threaded connector 2 is provided with a second external thread 202, and the inner surface of one end of the hollow stethoscope tube 3 is provided with a first internal thread 301 that matches the structure of the second external thread 202. The hollow stethoscope tube 3 and the hollow threaded connector 2 are connected by threads.
[0026] As attached Figure 1-2 and attached Figure 4 As shown, one end of the hollow stethoscope tube 3 is provided with an external threaded end tube 302 on the side away from the hollow threaded connector 2, and the inner surface of one end of the straight connector 4 is provided with a second internal thread 401 that matches the structure of the external threaded end tube 302. The straight connector 4 and the hollow stethoscope tube 3 are connected by threads.
[0027] As attached Figure 1-2 As shown, the connection between the protrusion 303 and the outer wall of the hollow stethoscope tube 3 is welding.
[0028] As attached Figure 1-2 and attached Figure 4 As shown, a third internal thread 402 is provided on the inner surface of one end of the straight connector 4 away from the hollow stethoscope tube 3. A horn-shaped connector 5 is provided with a horn-shaped connector end tube 501 connected inside the third internal thread 402 at one end. An external thread matching the structure of the third internal thread 402 is provided on the outer surface of the horn-shaped connector end tube 501. The ends of the horn-shaped connector 5 and the straight connector 4 are connected by threads.
[0029] Example 2:
[0030] As attached Figure 1-5 The high-efficiency stethoscope shown includes a spherical stethoscope component 1. A hollow threaded connector 2 is connected to the inner side of one end of the spherical stethoscope component 1. A hollow stethoscope tube 3 is connected to the outer side of the other end of the hollow threaded connector 2. A straight connector 4 is connected to the other end of the hollow stethoscope tube 3. A pointed connector 6 is connected to the other end of the straight connector 4. A protrusion 303 is provided on the outer wall of the middle part of the hollow stethoscope tube 3. A high-strength nylon wire is installed through the center of the hollow threaded connector 2, the hollow stethoscope tube 3, and the straight connector 4. One end of the high-strength nylon wire is connected to the inside of the pointed connector 6.
[0031] The straight connector 4 has a third internal thread 402 on the inner surface of one end away from the hollow stethoscope tube 3. The pointed connector 6 has a pointed connector end tube 601 connected inside the third internal thread 402 at one end. The outer surface of the pointed connector end tube 601 has an external thread that matches the structure of the third internal thread 402. The pointed connector 6 and the straight connector 4 are connected by threads.
[0032] Working principle: This utility model designs a high-efficiency listening stick, the specific structure of which is shown in the attached instruction manual. Figure 1-5As shown, the high-efficiency stethoscope designed in this technical solution is a portable structure with high auscultation efficiency and easy assembly and disassembly. It is mainly used for equipment inspection. It consists of a spherical stethoscope component 1, a hollow threaded connector 2, a hollow stethoscope tube 3, a high-strength nylon wire, a horn-shaped connector 5, and a pin. The main components of the stethoscope are connected by threads. Hollow threaded connector 2, horn-shaped connector 5, and pointed connector 6 are all drilled with 1mm holes on their sides. The pin is installed at the drilled holes. After the high-strength nylon wire is threaded into the hollow stethoscope tube 3, it is then fixed to the pin. Finally, the components are connected step by step. The components are assembled into one piece for inspecting operating equipment. A horn-shaped connector 5 or a pointed connector 6 can be selected according to equipment requirements. When inspecting the equipment, the front end of the horn-shaped connector 5 or the pointed connector 6 should be tightly attached to the equipment. Because the listening rod is entirely hollow, and a high-strength nylon wire is installed in the center of the listening rod, it facilitates sound propagation and reception, enabling precise listening to subtle sounds emitted during equipment operation. The heard sounds allow for timely analysis and judgment of the equipment's operating status, laying a solid foundation for the safe and efficient operation of the equipment. It is suitable for inspecting operating equipment such as motors, fans, and water pumps.
[0033] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high efficiency sound bar, characterized by: The utility model provides a kind of medical auscultation tube, including spherical auscultation component (1), one end inside of the spherical auscultation component (1) is connected with hollow screw joint (2), the other end outside of the hollow screw joint (2) is connected with hollow auscultation tube (3), the other end of the hollow auscultation tube (3) is connected with straight-through joint (4), the other end of the straight-through joint (4) is connected with horn joint (5) or sharp joint (6), the middle part outer wall of the hollow auscultation tube (3) is provided with protruding block (303), high-strength nylon wire is installed in the center of the hollow screw joint (2), hollow auscultation tube (3) and straight-through joint (4), one end of high-strength nylon wire is connected to the inside of horn joint (5) or sharp joint (6).
2. The high-efficiency sound bar of claim 1, wherein: The inside of the spherical auscultation component (1) is provided with an internal thread groove (101) outside the connection of the hollow screw joint (2), the one end of the hollow screw joint (2) is provided with a first external thread (201) matching the structure of the internal thread groove (101), and the hollow screw joint (2) is connected with the spherical auscultation component (1) by screwing.
3. The high-efficiency sound bar of claim 1, wherein: The other end of the hollow screw joint (2) is provided with a second external thread (202), and the one end of the hollow auscultation tube (3) is provided with a first internal thread (301) matching the structure of the second external thread (202), and the hollow auscultation tube (3) is connected with the hollow screw joint (2) by screwing.
4. The high-efficiency sound bar of claim 1, wherein: The one end of the hollow auscultation tube (3) is provided with an external thread end tube (302) on the side away from the hollow screw joint (2), and the one end of the straight-through joint (4) is provided with a second internal thread (401) matching the structure of the external thread end tube (302), and the straight-through joint (4) is connected with the hollow auscultation tube (3) by screwing.
5. The high-efficiency sound bar of claim 1, wherein: The connection between the protruding block (303) and the outer wall of the hollow auscultation tube (3) is welding.
6. The high-efficiency sound bar of claim 1, wherein: The one end of the straight-through joint (4) is provided with a third internal thread (402) on the side away from the hollow auscultation tube (3), and the one end of the horn joint (5) and the sharp joint (6) is respectively provided with a horn joint end tube (501) and a sharp joint end tube (601) connected inside the third internal thread (402).
7. The high-efficiency sound bar of claim 6, wherein: The outer surface of the horn joint end tube (501) and the sharp joint end tube (601) is provided with an external thread matching the structure of the third internal thread (402), and the horn joint (5) and the sharp joint (6) are connected with the end of the straight-through joint (4) by screwing.