An earpiece

Abstract

The utility model discloses a kind of needle listening devices, comprising: sound receiving cylinder, the sound receiving cylinder is equipped with sound receiving port;Sound collecting bin, the inside of the sound collecting bin is sound collecting cavity, the sound collecting cavity is in closed state, and the inner wall of sound collecting cavity is provided with sound insulation pad;Sound collecting cavity is equipped with sound recorder, and the data interface of sound recorder is worn to the outside of sound collecting bin;The outer wall of sound collecting bin is equipped with control switch, and the control switch is electrically connected with sound recorder;Sound pickup needle, the needle tail of the sound pickup needle is connected with sound receiving cylinder or sound collecting bin by first detachable structure.Sound pickup needle and sound receiving cylinder are assembled together, and then immediate sound can be heard, sound pickup needle and sound collecting bin are assembled together, and then the sound picked up by sound pickup needle is transmitted to sound collecting cavity, and then complete audio can be recorded for saving, for future reference, longitudinal comparison of audio in different periods, and horizontal comparison of multiple devices.The utility model has the advantages of immediate sound, and audio can be recorded for subsequent multi-purpose use.

Description

Technical Field

[0001] This application relates to the field of stethoscope technology, specifically to a stethoscope. Background Technology

[0002] When a bearing malfunctions, it will emit sudden and continuous sounds. These signals originate from the relative motion and friction between the bearing components (such as the inner ring, outer ring, rolling elements, and cage), the Hertzian contact stress caused by friction, and various surface damage and lubrication problems caused by failure, overload, etc. By analyzing these sounds, the health status of the bearing can be effectively monitored and diagnosed.

[0003] A stethoscope, also known as a stethoscope or leak detector, is an industrial tool that uses the principle of solid-state sound transmission to detect equipment malfunctions. It is mainly used to locate mechanical faults, pipeline leaks, and other problems. It transmits sound waves inside the equipment through a metal rod and analyzes the amplitude and frequency differences to determine the operating status of components such as bearings and valves.

[0004] Traditional stethoscopes can only transmit sound and listen in real time, but cannot record or save sound. Therefore, they cannot archive sound, can only judge the current status of the equipment, cannot comprehensively compare the historical status with the current status, and cannot make horizontal comparisons of the status of multiple devices of the same type in different locations. They can only rely on the maintenance personnel's memory to record and compare the sound. Utility Model Content

[0005] Therefore, there is a need to provide a stethoscope to solve the problem that traditional stethoscopes in the prior art can only listen to sounds in real time and cannot save audio.

[0006] To achieve the above objectives, the inventors have provided a stethoscope, comprising:

[0007] A listening tube, wherein the listening tube is provided with a listening port;

[0008] The sound-focusing chamber has a sealed cavity inside, and the inner wall of the cavity is equipped with a sound-absorbing pad. The cavity is equipped with a recorder, and the recorder's data interface extends to the outside of the sound-focusing chamber. The outer wall of the recording chamber is equipped with a control switch, which is electrically connected to the recorder.

[0009] The pickup needle has its tail connected to the earpiece or sound chamber via a first detachable structure.

[0010] In some embodiments, the first detachable structure includes a threaded hole at the listening tube, a threaded hole at the sound chamber, and a screw at the tail of the pickup needle; the tail of the pickup needle is connected to the threaded hole at the listening tube or the threaded hole at the sound chamber via the screw.

[0011] In some embodiments, the sound-gathering chamber has an inspection port, and the inspection port has a cover.

[0012] In some embodiments, the cover is provided with sound insulation strips on its sides.

[0013] In some embodiments, the recorder is connected to the inner wall of the sound-collecting cavity via a second detachable structure.

[0014] In some embodiments, the second detachable structure includes a slot disposed on the inner wall of the sound-collecting cavity and a block disposed on the recorder, wherein the recorder is engaged with the slot via the block.

[0015] In some embodiments, the listening tube is horn-shaped.

[0016] In some embodiments, the sound-focusing cavity is spherical.

[0017] In some embodiments, the pickup needle includes a tip section, a tail section, and at least one intermediate section; the tail section is connected to a listening tube or a sound chamber, and the intermediate section is connected between the tip section and the tail section.

[0018] In some embodiments, the needle tip, needle tail, and intermediate section are connected by threads.

[0019] Unlike existing technologies, the stethoscope described in the above technical solution allows for immediate listening and repair when sound needs to be heard. The stethoscope can be assembled with the listening tube via a first detachable structure, allowing sound to be heard through the listening port of the listening tube. Since a recorder is installed inside the sound chamber, and the control switch for the recorder is located on the outer wall of the sound chamber, the recorder can be activated via the control switch when recording and saving sound. The stethoscope is then assembled with the sound chamber via the first detachable structure. Because the sound chamber is a sealed cavity with sound-absorbing pads on its inner wall, the sound picked up by the stethoscope is highly focused within the cavity and recorded as audio by the recorder inside. The audio can then be accessed and saved via a data cable connected to the data interface outside the sound chamber, allowing for long-term storage of the recorded sound for future reference. Audio from different periods can be compared longitudinally to gain a comprehensive understanding of trends. The saved audio can be combined with the status of subsequent equipment for a more comprehensive understanding of the equipment's operating condition. Furthermore, multiple devices of the same type can be compared laterally. Therefore, the stethoscope can listen to sounds in real time and also record audio for subsequent multi-purpose use.

[0020] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0021] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0022] In the accompanying drawings of the instruction manual:

[0023] Figure 1 This is a structural diagram of the stethoscope in the listening state according to a specific embodiment;

[0024] Figure 2 This is a structural diagram of the stethoscope in recording mode according to a specific embodiment;

[0025] Figure 3 This is a cross-sectional view of the listening tube described in a specific embodiment;

[0026] Figure 4 This is a partial cross-sectional view of the sound-gathering chamber described in the specific embodiment;

[0027] Figure 5 This is an exploded view of the pickup needle described in the specific embodiment;

[0028] The reference numerals used in the above figures are explained as follows:

[0029] 1. Listening tube;

[0030] 100. Listening mouth;

[0031] 101. Threaded hole;

[0032] 2. Sound-gathering chamber;

[0033] 200. Sound-focusing cavity;

[0034] 201. Sound insulation mat;

[0035] 202. Recorder;

[0036] 203. Data Interface;

[0037] 204. Control switch;

[0038] 205. Inspection port;

[0039] 206. Cover;

[0040] 207. Soundproofing strips;

[0041] 3. Pickup pin;

[0042] 301. Needle tip segment;

[0043] 302, needle tail section;

[0044] 303, Middle Section;

[0045] 304. Screw. Detailed Implementation

[0046] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0047] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0048] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0049] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0050] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0051] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0052] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0053] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0054] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0055] When a bearing malfunctions, it will emit sudden and continuous sounds. These signals originate from the relative motion and friction between the bearing components (such as the inner ring, outer ring, rolling elements, and cage), the Hertzian contact stress caused by friction, and various surface damage and lubrication problems caused by failure, overload, etc. By analyzing these sounds, the health status of the bearing can be effectively monitored and diagnosed.

[0056] A stethoscope, also known as a stethoscope or leak detector, is an industrial tool that uses the principle of solid-state sound transmission to detect equipment malfunctions. It is mainly used to locate mechanical faults, pipeline leaks, and other problems. It transmits sound waves inside the equipment through a metal rod and analyzes the amplitude and frequency differences to determine the operating status of components such as bearings and valves.

[0057] Traditional stethoscopes can only transmit sound and listen in real time, but cannot record or save sound. Therefore, they cannot archive sound, can only judge the current status of the equipment, cannot comprehensively compare the historical status with the current status, and cannot make horizontal comparisons of the status of multiple devices of the same type in different locations. They can only rely on the maintenance personnel's memory to record and compare the sound.

[0058] Therefore, this utility model provides a stethoscope that enables non-destructive testing of mechanical faults, and in particular, it has a recording function that can save the sound during testing as audio for subsequent sound comparison.

[0059] Please see Figure 1 , Figure 2 In a specific embodiment, the stethoscope includes a listening tube 1, a sound-focusing chamber 2, and a pickup needle 3. The listening tube 1 has a listening port 100. The sound-focusing chamber 2 has a sound-focusing cavity 200 inside, which is in a sealed state, and the inner wall of the sound-focusing cavity 200 is provided with a sound-insulating pad 201. The sound-focusing cavity 200 is provided with a recorder 202, and the data interface 203 of the recorder 202 extends to the outside of the sound-focusing chamber 2. The outer wall of the recording chamber is provided with a control switch 204, which is electrically connected to the recorder 202. The tail of the pickup needle 3 is connected to the listening tube 1 or the sound-focusing chamber 2 through a first detachable structure.

[0060] For the stethoscope, please refer to [link / reference needed] when immediate auditory inspection is required. Figure 1 The pickup needle 3 can be assembled with the listening tube 1 via the first detachable structure, allowing sound to be heard through the listening port 100 of the listening tube 1. Since the sound chamber 2 contains a recorder 202, and the control switch 204 for the recorder 202 is located on the outer wall of the sound chamber 2, the recorder 202 can be activated via the control switch 204 when recording and saving sound is required. Please refer to [link / reference]. Figure 2The pickup needle 3 is then assembled with the sound-focusing chamber 2 via a first detachable structure. Since the sound-focusing chamber 2 contains a sound-focusing cavity 200 that is sealed, and the inner wall of the sound-focusing cavity 200 is equipped with a sound-insulating pad 201, the sound picked up by the pickup needle 3 is highly concentrated within the sound-focusing cavity 200 and recorded as audio by a recorder 202 located within the sound-focusing cavity 200. The audio can then be accessed and saved via a data cable connected to the data interface 203 outside the sound-focusing chamber 2, allowing for long-term preservation of the recorded sound for future reference. Audio from different periods can be compared longitudinally to gain a comprehensive understanding of trends. The saved audio can be combined with the status of subsequent equipment for a more comprehensive understanding of the equipment's operating condition. Furthermore, multiple devices of the same type can be compared laterally. Therefore, the stethoscope can listen to sound in real-time and record audio for subsequent multi-purpose use.

[0061] Taking bearing testing as an example, in actual operation, it is necessary to select a suitable testing environment and avoid interference from background noise. Then, place the microphone 3 close to the bearing housing and listen carefully to the sound of the bearing running. Obvious noise is easy to detect abnormalities. If the sound abnormality is not obvious, the audio of a normal bearing and the audio of the bearing to be tested can be recorded and compared to determine whether there is an abnormality.

[0062] If there are internal defects or damage to the bearing during operation, such as raceway wear, cage breakage, or rolling element peeling, when the pickup needle 3 contacts the bearing and the listening tube 1 is used to listen to the sound immediately, abnormal vibrations and noises will often be heard. These abnormal sounds usually manifest as irregular knocking sounds, sharp whistling sounds, or continuous buzzing sounds, which are significantly different from the smooth and low-pitched sound of a normal bearing during operation. When a normal bearing is running, when the listening tube 1 is used to listen to the sound immediately, the sound should be smooth, continuous, and at a moderate volume, without obvious high and low frequency changes.

[0063] In some embodiments, the listening tube 1 is horn-shaped, meaning the width of the listening tube 1 gradually increases in the direction away from the pickup needle 3, and the listening port 100 is located at the end face of the listening tube 1 away from the pickup needle 3. The sound picked up by the pickup needle 3 is focused at the listening port 100 of the listening tube 1 by the horn-shaped listening tube 1, allowing the user to hear the sound of the internal operation of the machinery more clearly.

[0064] Please see Figure 1 or Figure 3 In some embodiments, the listening port 100 can be a large opening that allows a user's ear to fit inside the listening tube 1.

[0065] In other embodiments, the listening port 100 may be a plurality of smaller ports that are evenly distributed.

[0066] Please see Figure 4 In some embodiments, the sound insulation pad 201 is sound insulation cotton, which can isolate external noise to ensure a quiet environment without noise during recording.

[0067] Please see Figure 3 , Figure 4 In some embodiments, the first detachable structure includes a threaded hole 101 at the listening tube 1, a threaded hole 101 at the sound chamber 2, and a screw 304 at the tail of the pickup needle 3; the tail of the pickup needle 3 is connected to the threaded hole 101 at the listening tube 1 or the threaded hole 101 at the sound chamber 2 via the screw 304.

[0068] In some other embodiments, the first detachable structure includes a locking hole located at the listening tube 1 or the sound chamber 2; the tail of the pickup needle 3 is directly engaged with the locking hole at the listening tube 1 or the locking hole at the sound chamber 2.

[0069] Please see Figure 4 In some embodiments, the sound chamber 2 has an inspection port 205, and the inspection port 205 has a cover 206. By opening the cover 206, the recorder 202 can be taken out from the inspection port 205 for inspection.

[0070] Please see Figure 4 In some embodiments, the cover 206 is provided with a sound insulation strip 207 on its side to ensure the airtightness of the entire sound-gathering cavity 200.

[0071] In some embodiments, the sound insulation strip 207 is also sound insulation cotton.

[0072] In some embodiments, the recorder 202 is connected to the inner wall of the sound-collecting cavity 200 via a second detachable structure, thereby facilitating the removal or installation of the recorder 202.

[0073] In some embodiments, the second detachable structure includes a slot provided on the inner wall of the sound-focusing cavity 200 and a block provided on the recorder 202, wherein the recorder 202 is engaged with the slot by the block.

[0074] In some embodiments, the sound-focusing cavity 200 is spherical, and the sound picked up by the pickup needle 3 is conducted to the middle of the sound-focusing cavity 200 and concentrated at a high level. The recorder 202 is preferably located in the middle of the sound-focusing cavity 200, which can better record clear audio.

[0075] In some embodiments, the pickup needle 3 includes a tip section 301, a tail section 302, and at least one intermediate section 303; the tail section 302 is connected to the listening tube 1 or the sound chamber 2, and the intermediate section 303 is connected between the tip section 301 and the tail section 302. The user can splice the corresponding number of intermediate sections 303 according to actual needs to increase the length of the entire pickup needle 3 so that the entire pickup needle 3 can penetrate to a deeper position.

[0076] Please see Figure 5 In some embodiments, the needle tip section 301, the needle tail section 302, and the middle section 303 are connected by threads.

[0077] The needle tip section 301 is provided with a threaded hole 101, one end of the middle section 303 is provided with a threaded rod, and the other end of the middle section 303 is provided with a threaded hole 101. Both ends of the needle tail section 302 are provided with screws 304. The screws 304 of the middle section 303 are screwed into the threaded hole 101 of the needle tip section 301, the screws 304 at one end of the needle tail section 302 are screwed into the threaded hole 101 of the middle section 303, and the screws 304 at the other end of the needle tail section 302 are screwed into the threaded hole 101 of the listening tube 1 or the threaded hole 101 of the sound chamber 2, thereby assembling the needle tip section 301, the needle tail section 302, and the middle section 303 together.

[0078] Alternatively, the screw 304 at one end of the needle tail section 302 can be tightened into the threaded hole 101 of the needle head section 301, and the screw 304 at the other end of the needle tail section 302 can be tightened into the threaded hole 101 of the listening tube 1 or the threaded hole 101 of the sound chamber 2, thereby assembling the needle head section 301 and the needle tail section 302 together.

[0079] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A stethoscope, characterized in that, include: A listening tube, wherein the listening tube is provided with a listening port; The sound-focusing chamber has a sealed cavity inside, and the inner wall of the cavity is equipped with a sound-absorbing pad. The cavity is equipped with a recorder, and the recorder's data interface extends to the outside of the sound-focusing chamber. The outer wall of the recording chamber is equipped with a control switch, which is electrically connected to the recorder. The pickup needle has its tail connected to the earpiece or sound chamber via a first detachable structure.

2. The stethoscope according to claim 1, characterized in that, The first detachable structure includes a threaded hole at the listening tube, a threaded hole at the sound chamber, and a screw at the tail of the pickup needle; the tail of the pickup needle is connected to the threaded hole at the listening tube or the threaded hole at the sound chamber via the screw.

3. The stethoscope according to claim 1, characterized in that, The sound chamber is equipped with an inspection port, which is covered.

4. The stethoscope according to claim 3, characterized in that, The cover has sound insulation strips on its sides.

5. The stethoscope according to claim 3, characterized in that, The recorder is connected to the inner wall of the sound-collecting cavity via a second detachable structure.

6. The stethoscope according to claim 5, characterized in that, The second detachable structure includes a slot located on the inner wall of the sound-gathering cavity and a block located at the recorder, wherein the recorder is engaged with the slot via the block.

7. The stethoscope according to claim 1, characterized in that, The listening tube is horn-shaped.

8. The stethoscope according to claim 1, characterized in that, The sound-focusing cavity is spherical.

9. The stethoscope according to claim 1, characterized in that, The pickup needle includes a tip section, a tail section, and at least one intermediate section; the tail section is connected to the listening tube or the sound chamber, and the intermediate section is connected between the tip section and the tail section.

10. The stethoscope according to claim 9, characterized in that, The needle tip, needle tail, and middle section are connected by threads.

Images