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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of the step 3 of the
earphone, FIG. 2 is a cross-section of the step 3 'of the earphone of FIG. 1 is a dustproof net, 2 is
a bore, 3 and 3' are a step, 4 Are earplugs, 5-. 5 'is a lumen inlet portion, 6 is a diaphragm.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an earphone.
Conventionally, when using an earphone, from the arrival day of the inner cavity (2) of the
earplug section (4), 7 ears, rubbish, etc. enter and pass through the inland sea urchin clam shell
1) An abnormal sound is generated and it becomes difficult to hear. There is a defect that 7 ears,
dust and the like attached to the 2 j-characters and 2 and the diaphragm 6 can not be removed.
The present invention was devised to eliminate the above-mentioned drawbacks, and to explain
the embodiment shown in the drawing, as shown in FIG. 1, the cross-sectional area of the
artificial part of the lumen 2 of the earplug portion 4 The diameter of the inner part 5 is
increased, and the boundary between the artificial part and the inner part 2 is formed, and the
step 3 is formed, and the dustproof net 1 is attached to the step 3 , Prevent the infiltration of ear
red, such as wire mesh, bunching net I character correction, etc., and the ingress of garbage l,
there is no sound quality T (a sword-like structure with a large eye-sword-like structure). How to
attach the dustproof net 1 The adhesive history is attached by welding. In Fig. 2, the shape of the
step portion 3 ', the cross-sectional area of the inner cavity 5' of the entry date,-, S minutes is
slightly larger than the cross-sectional area of the inner frame 2 of the earplug N & 4. The crosssectional area of the dust-proof net attachment portion is slightly smaller than the dust-proof net
area, and the cross-sectional area of the dust-proof net attachment portion is larger than the
cross-sectional area of the lumen 35 '. Insert it from the entrance of the lumen 5 ', press it in
firmly, and install it by fitting it in the dustproof net mounting part. Since the present invention is
configured as described above, the ear dust, dust-l, which enters from the entrance of ffs, s 'of the
ear plug part 4, is attached to the step 3, 3' of the entrance part It adheres to the outward
direction of the dustproof net 1. The attached dust and dirt may be removed with a brush or the
like. Thus, on the front surface Wt of the shooting surface 6 at the back of the lumen 2, the ears
7, dust and the like do not adhere. According to the proposal, as mentioned above, the inner
population of earplugs @ 4 and the installation of small-diameter dust-proof kit 1 prevent the
infiltration of earmarks, dust, etc. into inner ring 2, and diaphragm 6 By preventing adhesion to
the surface of the bird, it has the effect of perpetuating the sound quality of the first bird, and the
dustproof net mounting process is also simple.
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