CN204332331U - The self-leveling accordion sound hole cover of a kind of energy - Google Patents
The self-leveling accordion sound hole cover of a kind of energy Download PDFInfo
- Publication number
- CN204332331U CN204332331U CN201520004460.1U CN201520004460U CN204332331U CN 204332331 U CN204332331 U CN 204332331U CN 201520004460 U CN201520004460 U CN 201520004460U CN 204332331 U CN204332331 U CN 204332331U
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- CN
- China
- Prior art keywords
- key lever
- sound hole
- hole cover
- lever groove
- leveling
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Abstract
The utility model discloses the self-leveling accordion sound hole cover of a kind of energy, its sound hole cover body is processed with the key lever groove be connected with key lever, the cross sectional shape of described key lever groove is the shorter inverted trapezoidal structure in base, is provided with the lateral projection vertical with key lever groove in the middle part of described key lever groove.The utility model passes through key lever slot machining structure in echelon, utilize autofrettage, automatically the center of key lever groove can be fallen when key lever and sound hole cover are assembled, and the lateral projection vertical with key lever groove is set in the middle part of key lever groove, utilize fulcrum principle, after in key lever press-in key lever groove, only contact with this lateral projection, thus automatic leveling sound hole cover, make sound hole cover bottom surface and grill contact area uniform force, and the stress point of each sound hole cover is identical.Structure energy automatic leveling described in the utility model, self-centering, and structure is simple, easy to operate, significantly can improve product quality and production efficiency, there is significant economic worth and social value.
Description
Technical field
The utility model relates to accordion parts manufacturing technology field, is specifically related to the self-leveling accordion sound hole cover of a kind of energy.
Background technology
Accordion belongs to free spring aerophone, and rely on air-flow excite reed vibrates and pronounce, being good (instrumental) ensemble, musical instrument accompaniment, is also the conventional musical instrument in music teaching.But the compact complexity of accordion structure, craft precision is high, and manufacturing process is loaded down with trivial details very long, and a usual procedure takes a long time with regard to needs and carries out adjustment, and production cost is high, and is difficult to the requirement reaching professional performance qin.The key kinematic train of accordion is saddle structure, be made up of key, key lever, key lever frame, spring and sound hole cover, key is bonded on key lever, key lever top and sound hole cover are fixed, the saddle-shaped base of riveted bottom key lever, be stuck on the axle of the key lever frame be fixed on qin case, and by spring pulling key lever, sound hole cover be pressed on the pore of grill.The key that key kinematic train is produced is to guarantee that sound hole cover is parallel with grill, sound hole cover can evenly be opened and closed under key lever drives, to ensure playing quality, but in existing manufacturing technology, because key lever is irregular structure part, make the leveling operation of sound hole cover very loaded down with trivial details, difficult and poor effect.Therefore, develop a kind of can automatic leveling and simple, the easy to operate accordion sound hole cover of structure is desirability.
Utility model content
The purpose of this utility model is the accordion sound hole cover providing a kind of energy automatic leveling, structure simple, easy to operate.
The purpose of this utility model realizes like this, accordion sound hole cover described in the utility model, its sound hole cover body is processed with the key lever groove be connected with key lever, the cross sectional shape of described key lever groove is the shorter inverted trapezoidal structure in base, is provided with the lateral projection vertical with key lever groove in the middle part of described key lever groove.
Further, described lateral projection can be mounted in the cross bar on sound hole cover body, also can be the fin being arranged on key lever trench bottom.
Further, the protruding both sides of described key lever groove are processed with symmetrical size tub.
Further, one end of described key lever groove is provided with plug, and described sound hole cover body and plug can be integrated formed structures.
The utility model passes through key lever slot machining structure in echelon, utilize autofrettage, automatically the center of key lever groove can be fallen when key lever and sound hole cover are assembled, and the lateral projection vertical with key lever groove is set in the middle part of key lever groove, utilize fulcrum principle, after in key lever press-in key lever groove, only contact with this lateral projection, thus automatic leveling sound hole cover, make sound hole cover bottom surface and grill contact area uniform force, and the stress point of each sound hole cover is identical.Structure energy automatic leveling described in the utility model, self-centering, and structure is simple, easy to operate, significantly can improve product quality and production efficiency, there is significant economic worth and social value.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the I-I cross section view of Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment 2;
Fig. 4 is the II-II cross section view of Fig. 3;
Fig. 5 is the vertical view of the utility model embodiment 2;
Fig. 6 is the using state schematic diagram of the utility model embodiment 2.
In figure: 1-sound hole cover body, 2-lateral projection, 3-key lever groove, 4-size tub, 5-plug, 6-key lever, 7-viscose glue.
Embodiment
Be further described the utility model below in conjunction with accompanying drawing, but limited the utility model never in any form, any change done based on the utility model training centre or improvement, all belong to protection domain of the present utility model.
embodiment 1
As shown in Fig. 1 ~ 2, the self-leveling accordion sound hole cover of a kind of energy described in the utility model, its sound hole cover body 1 is processed with the key lever groove 3 be connected with key lever 6, the cross sectional shape of described key lever groove 3 is the shorter inverted trapezoidal structure in base, is provided with the lateral projection 2 vertical with key lever groove 3 in the middle part of described key lever groove 3.
When key lever groove 3 is set to inverted trapezoidal cell body, because key lever groove 3 both sides are inclined-plane, even if sound hole cover body 1 is not ajusted before installing, when key lever 6 presses down installation, also can glide along inclined-plane, thus levelling sound hole cover body 1.Certainly from this principle, the width on key lever groove 3 base is necessarily equal to or slightly greater than the rear diameter of key lever 6 or thickness, and after key lever 6 is depressed and the gap on key lever groove 3 base should be not more than 1mm.
Described lateral projection 2 can be mounted in the cross bar on sound hole cover body 1, also can be arranged on the fin bottom key lever groove 3.This lateral projection 2 role is equivalent to a balance pivot, because key lever 6 is irregular structure part, if not this fulcrum, each key lever 6 stress point be pressed in key lever groove 3 is uncertain, forward then sound hole cover rear end tilts, then front end tilts rearward, need to require great effort time-consuming adjustment and poor effect, but at middle part, preferably after the transverse center line position of sound hole cover body 1 arranges this lateral projection 2, key lever 6 is pressed into after in key lever groove 3, only contact with this lateral projection 2, thus automatic leveling sound hole cover, make sound hole cover bottom surface and grill contact area uniform force, and the stress point of each sound hole cover is identical.So described lateral projection 2, can be cross bar or fin, or other can play arbitrarily shape or the structure of point action.
embodiment 2
As illustrated in figures 3-6, the self-leveling accordion sound hole cover of a kind of energy described in the utility model, its sound hole cover body 1 is processed with the key lever groove 3 be connected with key lever 6, the cross sectional shape of described key lever groove 3 is the shorter inverted trapezoidal structure in base, is provided with the lateral projection 2 vertical with key lever groove 3 in the middle part of described key lever groove 3; Lateral projection 2 both sides of described key lever groove 3 are processed with symmetrical size tub 4; One end of described key lever groove 3 is provided with plug 5, and described sound hole cover body 1 and plug 5 are formed in one structure.
On embodiment 1 basis, the present embodiment is processed with symmetrical size tub 4 in lateral projection 2 both sides of key lever groove 3, the lateral depth of described size tub 4 is 1-4mm, the single length being size tub 4 prolongs key lever 6 installation direction is 5-15mm, after processing size tub 4, the length retaining the key lever groove 3 of inverted trapezoidal structure in the middle part of sound hole cover body 1 should be no less than 5mm, and the length retaining the key lever groove 3 of inverted trapezoidal structure near the end of key lever 6 side should be no less than 5mm.The setting of this size tub 4, increases the glue consumption of viscose glue 7 when key lever 6 is connected with sound hole cover body 1, and passes through the position of scientific offering size tub 4, adds stable connection, extends serviceable life.
Further; one end of described key lever groove 3 is provided with plug 5; can ease of assembly; and can resin added be reduced; described sound hole cover body 1 can adopt integrated formed structure with plug 5; undertaken one-body molded by prior aries such as casting, injection moulding, injection mouldings, to reduce production cost and to improve interchangeability of parts, be convenient to large-scale production.
Claims (6)
1. the self-leveling accordion sound hole cover of energy, sound hole cover body (1) is processed with the key lever groove (3) be connected with key lever (6), it is characterized in that: the cross sectional shape of described key lever groove (3) is the shorter inverted trapezoidal structure in base, and described key lever groove (3) middle part is provided with the lateral projection (2) vertical with key lever groove (3).
2. the self-leveling accordion sound hole cover of a kind of energy according to claim 1, is characterized in that: described lateral projection (2) is for being arranged on the cross bar on sound hole cover body (1).
3. the self-leveling accordion sound hole cover of a kind of energy according to claim 1, is characterized in that: described lateral projection (2) is for being arranged on the fin of key lever groove (3) bottom.
4. the self-leveling accordion sound hole cover of a kind of energy according to claim 1, is characterized in that: projection (2) both sides of described key lever groove (3) are processed with symmetrical size tub (4).
5. the self-leveling accordion sound hole cover of one energy according to claim 1 or 4, is characterized in that: one end of described key lever groove (3) is provided with plug (5).
6. according to claim 5 a kind of can self-leveling accordion sound hole cover, it is characterized in that: described sound hole cover body (1) and plug (5) are formed in one structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004460.1U CN204332331U (en) | 2015-01-06 | 2015-01-06 | The self-leveling accordion sound hole cover of a kind of energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004460.1U CN204332331U (en) | 2015-01-06 | 2015-01-06 | The self-leveling accordion sound hole cover of a kind of energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204332331U true CN204332331U (en) | 2015-05-13 |
Family
ID=53168660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520004460.1U Expired - Fee Related CN204332331U (en) | 2015-01-06 | 2015-01-06 | The self-leveling accordion sound hole cover of a kind of energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204332331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616642A (en) * | 2015-01-06 | 2015-05-13 | 云南格律乐器制造有限公司 | Accordion sound hole cover capable of being automatically leveled |
-
2015
- 2015-01-06 CN CN201520004460.1U patent/CN204332331U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104616642A (en) * | 2015-01-06 | 2015-05-13 | 云南格律乐器制造有限公司 | Accordion sound hole cover capable of being automatically leveled |
| CN104616642B (en) * | 2015-01-06 | 2017-09-15 | 云南格律乐器制造有限公司 | A kind of self-leveling accordion sound hole cover of energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20200106 |