A composite diaphragm and its matching structure with the listening head
A composite technology with a matching structure, applied in stethoscopes, sounding instruments, instruments, etc., can solve the problems of inconvenience, trouble and time-consuming, and achieve the effect of easy installation, improved recovery, and durable use cycle.
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Embodiment 1
[0064] Example 1: Combining figure 1 , figure 2 , image 3 , Figure 4 It can be seen that
[0065] The composite diaphragm is composed of a circular diaphragm 11 and a fixing piece 12 . The fixing part 11 has an integral structure, including a large ring 122 , a small ring 121 and a connecting portion 123 . Wherein the diameter of the large ring 122 is greater than the diameter of the small ring 121, the large ring 122 is located below the connection portion 123, the small ring 121 is located above the connection portion 123, and the small ring 121 is radially provided with an annular groove 124, The outer edge of the circular diaphragm 11 is located in the ring groove 124 .
[0066] The rest are the same as above,
[0067] In combination with embodiment 1 and figure 1 , figure 2 It can be seen that the connecting portion 123 is a circular ring 125 provided with a shoulder 126;
[0068] In combination with embodiment 1 and image 3 , Figure 4 It can be seen that...
Embodiment 2
[0070] Example 2: Combining Image 6 , Figure 7 , Figure 21 To further illustrate the present invention
[0071] The listening head 2 includes a listening head body 21 and a cylinder 22. The listening head body 21 includes two parts: a body A for listening to high-frequency sounds and a body B for listening to middle and high-frequency sounds. The body 22 is integrated with the listening head body 21, and an axial ring groove 222 and a sound collecting surface 223 are arranged on the cylindrical end surface 221, and a sound guiding hole 224 and a fixing hole 225 are arranged on the sound collecting surface 223. The outer side 220 of the cylinder is radially provided with an annular groove 227 .
[0072] The middle and high frequency audio body B is located above the cavity 5, and the low-frequency audio body A is located below the cavity 5. The low-frequency audio body A is provided with a sound collecting surface 223B, and the cavity 5 is located between the sound collec...
Embodiment 3
[0076] Embodiment 3: combine below figure 1 , figure 2 , image 3 , Figure 4 , Figure 12 , Figure 14 , Figure 21 To further illustrate the present invention
[0077] The matching structure of the listening head and the composite diaphragm, including the listening head 2, the diaphragm 1 and the C-shaped sealing ring 4;
[0078] The diaphragm 1 is composed of a circular diaphragm 11 and a fixing part 12. The fixing part 12 includes three parts: a large ring 121, a small ring 122 and a connecting part 123. The large ring 122 is located below the connecting part 123, and the small ring 121 Located above the connecting portion 123, the small ring 121 is provided with a ring groove 124 in the radial direction, wherein the diameter of the large ring 122 is different from that of the small ring 121, the diameter of the large ring 122 is large, and the outer edge of the circular diaphragm 11 Located in the ring groove 124.
[0079] The listening head 2 includes a listenin...
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