Saxophone elbow connecting mechanism and Saxophone

Abstract

The utility model relates to a saxophone elbow connecting mechanism and a saxophone. The technical problem that an existing bent pipe is unreasonable in connection design is solved. The saxophone elbow connecting mechanism comprises an elbow-shaped neck pipe main body, wherein the outer diameter of the neck pipe main body is gradually reduced along the axial direction; the tubular inserting pipe is connected to the wide opening end of the neck pipe body in a sleeved mode, a protruding ring protruding in the circumferential direction is arranged on the outer wall of the end, close to the neck pipe body, of the tubular inserting pipe, an arc-shaped concave face is arranged on the side, close to the neck pipe body, of the protruding ring, and an annular step corresponding to the arc-shaped concave face is arranged on the inner wall of the tubular inserting pipe. The wide opening end of the neck pipe body is inserted into the cylindrical inserting pipe, and the end of the neck pipe body abuts against the annular step. The saxophone elbow connecting mechanism is used for reducing direct collision stress of the sleeving section between the neck pipe main body and the cylindrical insertion pipe, and main stress points and sleeving contact surfaces are arranged at intervals, so that the problems of tone change and the like caused by sealing failure after structural deformation are avoided.

Description

Technical Field

[0001] The utility model belongs to the field of saxophones and relates to a saxophone curved pipe connecting mechanism and a saxophone. Background Art

[0002] For example, a Chinese patent document discloses a woodwind instrument and its neck tube [201410084179.3], wherein the neck tube includes a body and a connecting assembly, wherein the body is tubular and has a first end and a second end, wherein the connecting assembly includes a connecting tube fixed to the second end and a fastening ring, wherein the connecting tube is provided for the tube body of the woodwind instrument to be sleeved, wherein the fastening ring is sleeved on the tube body and fastens the tube body and the connecting tube, and wherein at least one of the connecting tube and the fastening ring has a density less than that of the body.

[0003] The defect of the above technical solution is that the neck tube and the connecting tube are easily directly impacted, resulting in poor sealing after the structure is deformed. Utility Model Content

[0004] The utility model aims to provide a saxophone elbow connection mechanism and a saxophone in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] The Sachs elbow connection mechanism comprises:

[0007] A neck tube body in the shape of a curved tube, the outer diameter of which gradually decreases along the axial direction;

[0008] A cylindrical plug-in tube is sleeved on the wide-mouth end of the neck tube body, an outer wall of one end of the cylindrical plug-in tube close to the neck tube body is provided with a circumferentially protruding convex ring, a side of the convex ring close to the neck tube body is provided with an arc-shaped concave surface, an inner wall of the cylindrical plug-in tube is provided with an annular step corresponding to the arc-shaped concave surface, the wide-mouth end of the neck tube body is inserted into the cylindrical plug-in tube and the end portion abuts against the annular step.

[0009] Furthermore, the inner wall of the cylindrical plug-in tube is a conical surface and fits with the outer wall of the wide-mouth end of the neck tube body.

[0010] Furthermore, a clearance notch is provided at one end of the cylindrical plug-in tube away from the convex ring.

[0011] Furthermore, the outer wall of the convex ring is provided with an arc-shaped convex surface.

[0012] Furthermore, the contact surface between the wide end of the neck tube body and the annular step is axially staggered with the outermost end of the arc-shaped convex surface.

[0013] Furthermore, the outer wall of the neck tube body is connected to a tone adjustment hole which is radially protruding.

[0014] Furthermore, one end of the neck tube body away from the cylindrical plug tube is connected with a mouthpiece.

[0015] The utility model also provides a saxophone, which has the saxophone curved pipe connecting mechanism.

[0016] Compared with the prior art, the neck tube body and the convex ring of the saxophone curved tube connection mechanism form collision fulcrums at both ends of the arc-shaped concave surface, which are used to reduce the direct collision force of the sleeve section between the neck tube body and the cylindrical plug-in tube, and the contact surface between the wide mouth end of the neck tube body and the annular step is axially staggered with the outermost end of the arc-shaped convex surface, so that the main force point and the sleeve contact surface are set at intervals, avoiding problems such as tone changes caused by sealing failure after structural deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of a saxophone elbow connection mechanism in the prior art.

[0018] Figure 2 The utility model is a schematic diagram of a saxophone elbow connection mechanism.

[0019] Figure 3 for Figure 2 Schematic diagram of the cylindrical plug-in tube of the saxophone elbow connection mechanism.

[0020] In the figure, 10, neck tube body; 11, tone adjustment hole; 20, cylindrical plug-in tube; 21, convex ring; 22, arc-shaped concave surface; 23, annular step; 24, conical surface; 25, clearance gap; 26, arc-shaped convex surface; 30, mouthpiece. DETAILED DESCRIPTION Embodiment 1

[0021] See also Figures 1 to 3 , which is a schematic diagram of a saxophone elbow connection mechanism provided by the utility model. The saxophone elbow connection mechanism includes: a neck tube body 10 in the shape of an elbow, a tubular plug-in tube 20 sleeved on the neck tube body 10, and after the tubular plug-in tube 20 is inserted and connected with the neck tube body 10, a fixed connection is achieved by welding or adding an elastic pad and elastic sleeve. The saxophone elbow connection mechanism also includes other structures, such as sealing pads or sealing plugs, which are all well-known technologies to those skilled in the art, so they will not be described in detail here.

[0022] The neck tube body 10 is in a curved tube shape, with a narrow end and a wide end at both ends. The outer diameter of the neck tube body 10 gradually decreases axially from the wide end toward the narrow end, that is, the neck tube body 10 approaches the shape of a tapered tube at the wide end.

[0023] The cylindrical plug-in tube 20 is sleeved on the wide end of the neck tube body 10, and the inner wall of the cylindrical plug-in tube 20 is a tapered cylindrical surface 24. The cylindrical plug-in tube 20 is elastically sleeved on the outer side of the neck tube body 10 with an interference fit by utilizing its own deformation ability, or a rubber pad structure is provided on the outer side of the neck tube body 10, so that after elastic sleeve connection, the cylindrical plug-in tube 20 and the outer wall of the wide end of the neck tube body 10 are fitted and sealed.

[0024] The outer wall of the end of the cylindrical plug-in tube 20 close to the neck tube body 10 is provided with a circumferentially protruding convex ring 21. The convex ring 21 is a protruding structure of the outer wall of the cylindrical plug-in tube 20, which serves as an advantageous force point and plays a role in protecting the tube body. Optimally, the outer wall of the convex ring 21 is provided with an arcuate convex surface 26. The design of the arcuate convex surface 26 reduces the contact area of ​​the cylindrical plug-in tube 20 when it is hit.

[0025] An arcuate concave surface 22 is provided on the side of the convex ring 21 close to the neck tube body 10, and an annular step 23 corresponding to the arcuate concave surface 22 is provided on the inner wall of the cylindrical plug-in tube 20. The wide end of the neck tube body 10 is inserted into the cylindrical plug-in tube 20 and the end abuts on the annular step 23. The annular step 23 is the limiting end of the axial insertion length of the neck tube body 10. After plugging in, the inner wall of the neck tube body 10 and the cylindrical plug-in tube 20 correspond to the outer arcuate concave surface 22, and the neck tube body 10 and the convex ring 21 form collision fulcrums at both ends of the arcuate concave surface 22, which are used to reduce the direct collision force of the sleeve section between the neck tube body 10 and the cylindrical plug-in tube 20, and avoid problems such as tone changes caused by sealing failure after structural deformation.

[0026] The contact surface between the wide end of the neck tube body 10 and the annular step 23 is axially staggered with the outermost end of the arcuate convex surface 26, so that the main force point and the sleeve contact surface are spaced apart to further reduce structural deformation.

[0027] A clearance notch 25 is provided at one end of the tubular plug-in tube 20 away from the convex ring 21. The clearance notch 25 enables the tubular plug-in tube 20 to be deformed and inserted into the main tube.

[0028] The outer wall of the neck tube body 10 is connected with a radially protruding tone adjustment hole 11, and the tone adjustment hole is connected with the inner cavity of the neck tube body 10. A closed switch capable of opening and closing the tone adjustment hole 11 is hinged on the outer side of the neck tube body 10.

[0029] One end of the neck tube body 10 away from the cylindrical plug tube 20 is connected to a mouthpiece 30 . The narrow end of the neck tube body 10 is provided with a stepped thin tube, and the outer wall of the straw is provided with an annular cork. The mouthpiece 30 is also sleeved on the narrow end of the neck tube body 10 . Embodiment 2

[0030] The utility model also provides a saxophone, which has the saxophone elbow connection mechanism as described above, and in addition to the saxophone elbow connection mechanism, also includes other functional components and specific structures.

[0031] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A saxophone elbow connection mechanism, characterized in that: The Sachs elbow connection mechanism comprises: A neck tube body in the shape of a curved tube, the outer diameter of which gradually decreases along the axial direction; A cylindrical plug-in tube is sleeved on the wide-mouth end of the neck tube body, an outer wall of one end of the cylindrical plug-in tube close to the neck tube body is provided with a circumferentially protruding convex ring, a side of the convex ring close to the neck tube body is provided with an arc-shaped concave surface, an inner wall of the cylindrical plug-in tube is provided with an annular step corresponding to the arc-shaped concave surface, the wide-mouth end of the neck tube body is inserted into the cylindrical plug-in tube and the end portion abuts against the annular step.

2. The Sachs elbow connection mechanism according to claim 1, characterized in that: The inner wall of the cylindrical plug-in tube is a conical cylindrical surface and fits with the outer wall of the wide mouth end of the neck tube body.

3. The saxophone elbow connection mechanism according to claim 1, characterized in that: A clearance notch is arranged at one end of the cylindrical plug-in tube away from the convex ring.

4. The saxophone elbow connection mechanism according to claim 1, characterized in that: The outer wall of the convex ring is provided with an arc-shaped convex surface.

5. The saxophone elbow connection mechanism according to claim 4, characterized in that: The contact surface between the wide mouth end of the neck tube body and the annular step is axially staggered with the outermost end of the arc-shaped convex surface.

6. The saxophone elbow connection mechanism according to claim 1, characterized in that: The outer wall of the neck tube body is connected to a tone adjustment hole which is radially protruding.

7. The saxophone elbow connection mechanism according to claim 1, characterized in that: One end of the neck tube body away from the cylindrical plug tube is connected with a mouthpiece.

8. A saxophone, characterized in that: A saxophone elbow connection mechanism according to any one of claims 1 to 7.

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