CN101690670A - Stethoscope ear plug seat and matched ear plug head - Google Patents
Stethoscope ear plug seat and matched ear plug head Download PDFInfo
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- CN101690670A CN101690670A CN200910172039A CN200910172039A CN101690670A CN 101690670 A CN101690670 A CN 101690670A CN 200910172039 A CN200910172039 A CN 200910172039A CN 200910172039 A CN200910172039 A CN 200910172039A CN 101690670 A CN101690670 A CN 101690670A
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- tubular body
- earplug
- head
- ear plug
- seat
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Abstract
The invention relates to a medical apparatus fitting part, in particular to stethoscope fitting parts. An ear plug seat is provided with a through hole and comprises a tubular body and a base, wherein the base is provided with a stepped surface and a bottom surface; the tubular body is positioned on the stepped surface; the stepped surface at the root of a ring tubular body is provided with a ring groove; and the depth of the ring groove is not less than 4 millimeters. The ear plug head is provided with a through sound-guiding cavity and comprises a spherical belt and an ear plug head tubular body, wherein the end face at the root of the ear plug head tubular body is positioned on a spherical tangent plane of the spherical belt, and the head part of the ear plug head tubular body is provided with an annular groove. The invention has the advantages that the ear plug head and the ear plug seat are simple to mount and are matched with each other firmly, the using times and the service life of the ear plug seat are improved, and the ear plug seat is beautiful.
Description
Technical field
The present invention relates to a kind of fitting of medical apparatus, relate in particular to stethoscope, being specially is a kind of earplug seat and the earplug head that uses this earplug seat thereof, and the fit structure of the two.
Background technology
Stethoscope is the important tool that the medical and nursing work personnel carry out curative activity, and by stethoscopic sound amplification function, user can be recognized the situation of those internal organs of the patient that sees a doctor.Stethoscope is to collect by the operational sound that can will the person's of seeing a doctor internal organs to amplify, and is passed to the ear of user again via listening tube, earplug.
Existing earplug head is with earplug seat and be connected as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4: earplug seat 1 is structure as a whole, and is provided with the through hole 14 of establishing screw thread in one; Comprise tubular body 11, torus 13 and the frustum of a cone 12 3 parts; Wherein torus 13 lays respectively at tubular body 11 both sides with the frustum of a cone 12;
Summary of the invention
One of goal of the invention of the present invention is, providing a kind of can forever use, and saves cost, and can with earplug head accompanying colour, be convenient to the fixed earplug seat of earplug head.
Another goal of the invention of the present invention is to provide a kind of installation to be easy to, and change conveniently the earplug head of difficult drop-off.
The object of the present invention is achieved like this: one of the solution of the present invention is:
A kind of earplug seat for stethoscope is provided with a through hole, comprises tubular body and base two parts, described base is provided with a step surface and base end face, described tubular body is positioned on the described step surface, and ring tubular body heel step surface is provided with annular groove, and the degree of depth of described annular groove is not less than 4mm.The degree of depth of general annular groove exceeds this degree of depth and also can between 4mm to 9mm.
Further; Between annular groove bottom surface and described tubular body head end, be provided with groove.The degree of depth of general groove is between the 0.5mm to 1mm.
Further; Between described base end face and described annular groove bottom surface, be provided with a through hole.
Another solution of the present invention is:
A kind of ear plug of stethoscope head is provided with a leading note chamber that connects, and comprises spherical zone and earplug head tubular body two parts; Described earplug head tubular body root end face is positioned on the spheroid incisal plane of described spherical zone, it is characterized in that: be provided with annular recess at described earplug head tubular body head.The width of general annular recess is between 4mm to 9mm.
Further; On described leading note chamber, be provided with convex shoulder.Described convex shoulder can be on the tubular body inwall, and its length can be suitable with the length of tubular body, also can be less than the length of tubular body.Described convex shoulder also can be at the connecting portion that is positioned at described earplug head tubular body and described spherical zone.The height of convex shoulder is generally between 0.5mm to 1mm.
The height of leading note intracavity convex shoulder and the degree of depth of earplug seat upper groove adapt on the general earplug head.
Further; On described earplug head tubular body head end, be provided with the end face convex shoulder.Described convex shoulder can be column, also can be coniform grade and moves back and pull out.
The shape that the tubular body head end is provided with through hole between the shape of end face convex shoulder and the above base end face of earplug seat and the described annular groove bottom surface on the general earplug head adapts.
The present invention has following advantage:
1, because earplug head tubular body end is provided with annular recess, and the earplug seat bottom is provided with annular groove, when annular recess cooperates with annular groove, contact area than prior art earplug head and earplug seat obviously increases, thereby effectively increased the coefficient of friction of earplug head and earplug seat, made the earplug head more firm with cooperating of earplug seat.
2, since earplug head tubular body diameter less than earplug seat tubular body diameter, and the earplug head is high-elastic elastomer material, thereby at engagement process middle ear chock plug tubular body the earplug seat tubular body produced elasticity and embrace power, thereby increases the firmness that cooperates.
3, in the engagement process of earplug head and earplug seat, when the annular recess of earplug head advances in the annular groove of earplug seat, mode one: air is discharged by the groove between annular groove bottom surface and the described tubular body end face, thereby makes the convex shoulder of leading note intracavity fall into the backflow of groove blocking-up air by rotation earplug head again; Mode two: air is discharged by the through hole between the bottom surface of base end face and described annular groove, rotates the earplug head convex shoulder on the earplug head tubular body end face is cooperated with through hole on the base, thereby block the backflow of air.Thereby in the cooperating of earplug head and earplug seat, form negative pressure of vacuum, increased the absorption affinity of earplug head effectively, make the earplug head more firm with cooperating of earplug seat to earplug seat.
As long as can bear 21 newton's horizontal pull by test proof earplug head does not come off and can guarantee that the earplug head just often can not come off for about 5 pounds
Fit structure of the present invention, earplug head can bear 25 newton's horizontal pull when tensile test.
Just can change the earplug head by needing only behind the rotation releasing vacuum adsorption force with 5-6 newton's pulling force during replacing.
4, in the cooperating of earplug head and earplug seat, earplug seat and earplug head member all can be seen intuitively, therefore can carry out the overall appearance degree that two kinds of colour match increase earplug to earplug seat and earplug head.
Description of drawings
Fig. 1 is the generalized section of prior art earplug head.
Fig. 2 is the generalized section of prior art earplug seat.
Fig. 3 is the sketch map in the prior art installation process.
Fig. 4 is the sketch map of prior art earplug head and earplug seat fit structure.
Fig. 5 is an earplug seat sketch map of the present invention
Fig. 6 establishes the generalized section of groove for earplug seat of the present invention
Fig. 7 establishes the axonometric chart of groove for earplug seat of the present invention
Fig. 8 establishes the generalized section of through hole for earplug seat of the present invention
Fig. 9 is the sketch map of earplug head of the present invention
Figure 10 establishes the sketch map 1 of convex shoulder for earplug head leading note of the present invention chamber
Figure 11 establishes the sketch map 2 of convex shoulder for earplug head leading note of the present invention chamber
Figure 12 establishes the sketch map 3 of convex shoulder for earplug head leading note of the present invention chamber
Figure 13 establishes the sketch map of convex shoulder for earplug end surface of the present invention
Figure 14 is the sketch map-1 of earplug head of the present invention and earplug seat engagement process
Figure 15 is the sketch map-2 of earplug head of the present invention and earplug seat engagement process
Figure 16 is earplug head of the present invention and earplug seat fit structure sketch map-1
Figure 17 is the sketch map-3 of earplug head of the present invention and earplug seat engagement process
Figure 18 is the sketch map-4 of earplug head of the present invention and earplug seat engagement process
Figure 19 is earplug head of the present invention and earplug seat fit structure sketch map-2
Figure 20 is earplug head of the present invention and earplug seat fit structure sketch map-3
Figure 21 end face convex shoulder 28 sketch maps of the present invention
Figure 22 through hole 3 sketch maps of the present invention
Figure 23 is earplug head of the present invention and earplug seat fit structure sketch map-4
Among the figure:
111 head end, 3 through hole A root B heads, 2 earplug heads, 21 spherical zones, 22 tubular bodies, 23 frustum of a cones, 24 leading note chambeies, 1 earplug seat, 11 tubular bodies, 12 frustum of a cones, 13 torus, 14 through holes, 15 base end faces, 16 step surfaces, 17 annular grooves, 18 bases, 19 grooves, 110 annular groove bottom surfaces, 25 annular recess, 26 end faces, 27 convex shoulders, 28 end face convex shoulder A ' root B ' heads
Specific embodiment
The present invention is described further below in conjunction with accompanying drawing:
Embodiment 1: the present invention is described further in conjunction with Fig. 5:
Earplug seat for stethoscope 1 is provided with through hole 14, is made up of base 18 and tubular body 11; Wherein, base 18 comprises step surface 16 and base end face 15, and tubular body 11 1 end faces are positioned on the step surface 16, and the step surface 16 of ring tubular body 11 roots is provided with annular groove 17, and the degree of depth of annular groove 17 is 4mm.The degree of depth of annular groove 17 can be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm etc.
Embodiment 2: in conjunction with Fig. 6, Fig. 7 as can be known, with embodiment 1, also can be provided with groove 19 between the head end 111 of annular groove bottom surface 110 and tubular body 11.
Embodiment 3: in conjunction with Fig. 8 as can be known, with embodiment 1, also can be provided with through hole 3 between base end face 15 and annular groove bottom surface 110.In conjunction with Figure 22 as can be known, through hole 3 is conical.Through hole 3 can also be for cylindric etc.
Embodiment 4: the present invention is described further in conjunction with Fig. 5:
Ear plug of stethoscope head 2 is provided with a leading note chamber 24 that connects, and comprises spherical zone 21 and earplug head tubular body 22 two parts; Earplug head tubular body 22 heel end faces are positioned on the spheroid incisal plane of spherical zone 21, and earplug head tubular body 22 head B ' are provided with the annular recess 25 that width is 4mm.The width of annular recess 25 can also be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm etc.
Embodiment 5: in conjunction with Figure 13 as can be known, with embodiment 4, also be provided with end face convex shoulder 28 on the head B ' end face 26 of earplug head tubular body 22.End face convex shoulder 28 can be column or coniform etc.The height of end face convex shoulder 28 can be between 1mm to 3mm.
Embodiment 6: in conjunction with Figure 10, Figure 11, Figure 12 as can be known, with embodiment 4, also be provided with convex shoulder 27 on leading note chamber 24.
On tubular body 22 inwalls, be provided with convex shoulder 27; Convex shoulder 27 can be positioned on the inwall of tubular body 11; As shown in figure 11, convex shoulder 27 is positioned at the connecting portion of earplug head tubular body 22 and spherical zone 21; Or as shown in figure 10, convex shoulder 27 can be positioned on earplug head tubular body 22 root A ' spherical zones 21; Or as shown in figure 12, convex shoulder 27 can on earplug head tubular body 22 root A ' spherical zones 21 between the head B ' end face 26 of tubular body 22.
The length of convex shoulder 27 can be identical with the length of tubular body 22, also can be less than the length of tubular body 22.
Connecting portion at tubular body 22 and described spherical zone 21 is provided with convex shoulder 27.
Embodiment 7: the present invention is described further in conjunction with Fig. 5 and Fig. 9 and Figure 23.
The fit structure of ear plug of stethoscope head and earplug seat comprises earplug head 2 and earplug seat 1, wherein:
Ear plug of stethoscope head 2 is provided with a leading note chamber 24 that connects, and comprises spherical zone 21 and earplug head tubular body 22 two parts; Earplug head tubular body 22 heel end faces are positioned on the spheroid incisal plane of spherical zone 21, and earplug head tubular body 22 head B ' are provided with the annular recess 25 that width is 7mm;
Earplug seat for stethoscope 1 is provided with through hole 14, is made up of base 18 and tubular body 11; Wherein, base 18 comprises step surface 16 and base end face 15, and tubular body 11 1 end faces are positioned on the step surface 16, and the step surface 16 of ring tubular body 11 roots is provided with annular groove 17, and the degree of depth of annular groove 17 is 7mm;
Earplug head tubular body 22 is placed in outside the tubular body 11, and the external diameter of the internal diameter of earplug head tubular body 22 and tubular body 11 is complementary.After tubular body 11 advances earplug head tubular body 22, annular groove 17 is matched with annular recess 25, the degree of depth of the degree of depth of annular groove 17 and annular recess 25 is suitable, is 7mm.When tubular body 11 advanced earplug head tubular body 22 to tubular body 11 end faces 26 conflict annular groove bottom surfaces 110, the earplug head finished with cooperating of earplug seat.
Implement 8: the present invention is described further in conjunction with Figure 14, Figure 15, Figure 16, Figure 17, Figure 18, Figure 19
All the other and enforcement 7 together are provided with groove 19 between annular groove bottom surface 110 and tubular body head end 111, the degree of depth of groove 19 is 0.5mm; On leading note chamber 24, be provided with convex shoulder 27; The height of convex shoulder 27 is 0.5mm; The height of the degree of depth of groove 19 and convex shoulder 27 adapts.
Rotate earplug head 2, convex shoulder 27 is cooperated with groove 19, convex shoulder 27 is embedded in the groove 19, thereby the blocking-up air refluxes, thereby form negative pressure of vacuum in earplug head 2 and cooperating of earplug seat 1, increased the absorption affinity of 2 pairs of earplug seats 1 of earplug head effectively, made earplug head 2 more firm with cooperating of earplug seat 1.
Wherein, the degree of depth of groove 19 can be for any degree of depth between 0.5mm to 1mm, as 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1mm etc.; But and the also arbitrary height between 0.5mm to 1mm of the height of convex shoulder 27, as 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1mm etc.
Wherein, convex shoulder 27 can be positioned on the inwall of tubular body 11; Also can be positioned at the connecting portion of earplug head tubular body 22 and spherical zone 21, or be positioned on earplug head tubular body 22 root A ' spherical zones 21, or on earplug head tubular body 22 root A ' spherical zones 21 between the end face 26.The length of convex shoulder 27 can be suitable with the length of tubular body 11, also can be less than length of tubular body 11 etc.
The position of general convex shoulder 27 is positioned at the connecting portion of earplug head tubular body 22 and spherical zone 21, or is positioned on earplug head tubular body 22 root A ' spherical zones 21, or it is better much smaller than the length of tubular body 11 to be positioned at the root A ' and the length of tubular body 11.
If convex shoulder 27 the head B ' of tubular body 11 or on earplug head tubular body 22 root A ' spherical zones 21 to (as Figure 17, Figure 18, Figure 19) between the end face 26, in the time of in tubular body 11 advances earplug head tubular body 22: 1) if at the beginning, convex shoulder 27 promptly embeds in the groove 19, advance in the process of earplug head tubular body 22 at tubular body 11, because convex shoulder 27 has been blocked the backflow of air, propelling along with tubular body 11, air pressure in the groove 19 is increasing, make the propelling of tubular body 11 harder, be not easy to install; 2) advance in the process of earplug head tubular body 22 from tubular body 11,110 when inconsistent to end face 26 and annular groove bottom surface, this installation process is also quite difficult, and the internal diameter of the external diameter of Yin Ersai tubular body 22 and tubular body 11 is complementary, and convex shoulder 27 becomes tubular body 11 propulsive resistances undoubtedly.
Be positioned at the connecting portion of earplug head tubular body 22 and spherical zone 21 when convex shoulder 27, or be positioned on earplug head tubular body 22 root A ' spherical zones 21, or be positioned at the root A ' of tubular body 11, in the initial stage and the mid-term of the progradation of tubular body 11, convex shoulder 27 all can not constitute the propelling resistance to tubular body 11.During only to the propulsive coda of tubular body 11, convex shoulder 27 just constitutes resistance, but short as between the 1mm to 2mm because of convex shoulder 27 length, tubular body 11 propulsive resistances can be ignored, so installation is than being easier to.
Embodiment 9: the present invention is described further in conjunction with Figure 20, Figure 21 and Figure 22.
The fit structure of ear plug of stethoscope head and earplug seat comprises earplug head 2 and earplug seat 1, wherein:
Ear plug of stethoscope head 2 is provided with a leading note chamber 24 that connects, and comprises spherical zone 21 and earplug head tubular body 22 two parts; Earplug head tubular body 22 heel end faces are positioned on the spheroid incisal plane of spherical zone 21, and earplug head tubular body 22 head B ' are provided with the annular recess 25 that width is 6mm; Earplug head tubular body 22 head end 111 are provided with end face convex shoulder 28, and end face convex shoulder 28 can be column type or coniform, and the height of end face convex shoulder 28 is between the 1mm to 2mm.
Earplug seat for stethoscope 1 is provided with through hole 14, is made up of base 18 and tubular body 11; Wherein, base 18 comprises step surface 16 and base end face 15, and tubular body 11 1 end faces are positioned on the step surface 16, and the step surface 16 of ring tubular body 11 roots is provided with annular groove 17, and the degree of depth of annular groove 17 is 6mm; Be provided with a through hole 3 between base end face 18 and annular groove bottom surface 110, through hole 3 can be column type or shape such as coniform; Earplug head tubular body 22 is placed in outside the tubular body 11, and the internal diameter of the external diameter of earplug head tubular body 22 and tubular body 11 is complementary.Annular groove 17 matches with annular recess 25, and the degree of depth of annular groove 17 is relative with the degree of depth of annular recess 25, is 6mm.Tubular body 11 advances in earplug head tubular body 22 processes, air between the annular groove bottom surface 110 of the end face 26 of the head B ' of earplug head 2 and earplug seat 1 is got rid of by through hole 3, behind the annular groove bottom surface 110 of the end face 26 conflict earplug seats 1 of the head B ' of earplug head 2, rotate earplug head tubular body 22, thereby make end face convex shoulder 28 fill in the backflow of through hole 3 blocking-up air, earplug head 2 forms negative pressure of vacuum with cooperating of earplug seat 1, increased the absorption affinity of 2 pairs of earplug seats 1 of earplug head effectively, made earplug head 2 more firm with cooperating of earplug seat 1.
7 or 8 as can be known in conjunction with the embodiments, the base 18 of earplug seat 1 is visible part with the root A ' of the tubular body 22 of earplug head 2 with spherical zone 21, so the color of scalable earplug seat 1 and earplug head 2, making earplug seat 1 and earplug head 1 carry out two kinds of colour match increases the overall appearance degree.
Claims (10)
1. an earplug seat for stethoscope is provided with a through hole, comprises tubular body and base two parts, described base is provided with a step surface and base end face, described tubular body is positioned on the described step surface, it is characterized in that: ring tubular body root step surface is provided with annular groove, and the degree of depth of described annular groove is not less than 4mm.
2. earplug seat for stethoscope according to claim 1 is characterized in that: be provided with groove between annular groove bottom surface and described tubular body head end.
3. earplug seat for stethoscope according to claim 1 is characterized in that: be provided with a through hole between described base end face and described annular groove bottom surface.
4. an ear plug of stethoscope head is provided with a leading note chamber that connects, and comprises spherical zone and earplug head tubular body two parts; Described earplug head tubular body root end face is positioned on the spheroid incisal plane of described spherical zone, it is characterized in that: be provided with annular recess at described earplug head tubular body head.
5. ear plug of stethoscope head according to claim 4 is characterized in that: be provided with the end face convex shoulder on described earplug head tubular body head end.
6. ear plug of stethoscope head according to claim 5 is characterized in that: described convex shoulder is a column.
7. ear plug of stethoscope head according to claim 5 is characterized in that: described convex shoulder is coniform.
8. ear plug of stethoscope head according to claim 4 is characterized in that: be provided with convex shoulder on described leading note chamber.
9. ear plug of stethoscope head according to claim 4 is characterized in that: be provided with convex shoulder on the tubular body inwall.
10. ear plug of stethoscope head according to claim 4 is characterized in that: be provided with convex shoulder at the connecting portion with described earplug head tubular body and described spherical zone.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101720390A CN101690670B (en) | 2009-09-03 | 2009-09-03 | Stethoscope ear plug seat and matched ear plug head |
| PCT/CN2010/000625 WO2011026301A1 (en) | 2009-09-03 | 2010-05-04 | Earplug base for stethoscope and earplug head cooperating with earplug base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101720390A CN101690670B (en) | 2009-09-03 | 2009-09-03 | Stethoscope ear plug seat and matched ear plug head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101690670A true CN101690670A (en) | 2010-04-07 |
| CN101690670B CN101690670B (en) | 2011-07-20 |
Family
ID=42079421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101720390A Expired - Fee Related CN101690670B (en) | 2009-09-03 | 2009-09-03 | Stethoscope ear plug seat and matched ear plug head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101690670B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011026301A1 (en) * | 2009-09-03 | 2011-03-10 | 无锡市凯顺医疗器械制造有限公司 | Earplug base for stethoscope and earplug head cooperating with earplug base |
| CN108540917A (en) * | 2018-06-12 | 2018-09-14 | 歌尔股份有限公司 | Earphone magnetic force detection device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5113967A (en) * | 1990-05-07 | 1992-05-19 | Etymotic Research, Inc. | Audibility earplug |
| US7162039B1 (en) * | 1996-02-23 | 2007-01-09 | Matthew G. Callahan | Noise barrier apparatus having acoustic wave damping cushions |
| JP2000508205A (en) * | 1996-04-10 | 2000-07-04 | ミネソタ マイニング アンド マニュファクチャリング カンパニー | Ear tips having multiple ear contact surfaces |
| CN101204331A (en) * | 2007-12-04 | 2008-06-25 | 单希杰 | Earplug seat for stethoscope |
-
2009
- 2009-09-03 CN CN2009101720390A patent/CN101690670B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011026301A1 (en) * | 2009-09-03 | 2011-03-10 | 无锡市凯顺医疗器械制造有限公司 | Earplug base for stethoscope and earplug head cooperating with earplug base |
| CN108540917A (en) * | 2018-06-12 | 2018-09-14 | 歌尔股份有限公司 | Earphone magnetic force detection device |
| CN108540917B (en) * | 2018-06-12 | 2020-11-24 | 歌尔股份有限公司 | Earphone magnetic force detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101690670B (en) | 2011-07-20 |
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Granted publication date: 20110720 Termination date: 20170903 |
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