CN203455148U - Air tightness detecting device for accordion body - Google Patents
Air tightness detecting device for accordion body Download PDFInfo
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- CN203455148U CN203455148U CN201320522251.7U CN201320522251U CN203455148U CN 203455148 U CN203455148 U CN 203455148U CN 201320522251 U CN201320522251 U CN 201320522251U CN 203455148 U CN203455148 U CN 203455148U
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- accordion
- air
- flexible pipe
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- gas
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Abstract
The utility model relates to an air tightness detecting device for an accordion body, which is characterized in that: the air tightness detecting device comprises an air source; the air which is supplied from the air source is introduced into pipeline after input pressure of the air is adjusted through a manual pressure changing device; the other end of the pipeline is connected with a first flexible pipe; the bottom of the first flexible pipe is connected with a tested accordion through an air inlet joint; an air outlet joint of the tested accordion is connected with a second flexible pipe; the back end of the first flexible pipe is connected with an input air gauge at a part which is next to an air inlet of the tested accordion; and the front end of the second flexible pipe is connected with an output air gauge at a part which is next to an air outlet of the accordion. The air tightness detecting device for the accordion body provided by the utility model adjust the air pressure displayed on the input air gauge to 600+/-20Pa through adjusting the manual pressure changing device, and then whether the read number of the output air gauge is larger than or equal with 580Pa is observed, thereby determining whether the air tightness of the tested accordion is qualified. Furthermore air leakage value can be accurately detected, and the quality of the accordion can be determined.
Description
Technical field
The utility model relates to a kind of air-tightness detection device of accordion body, for accordion body impermeability is detected, belongs to musical instrument technical field.
Background technology
It is wide that accordion has tone, changes abundantly, can simulate various tone colors, easily-learned easily mastered, and the feature such as volume is little, easy to carry, therefore, accordion is well suited for player's self-recreation of all ages and classes, also can be carried to very easily school, arenas participation is performed.Accordion pronunciation is the pressure that produces air pressure and air-flow during by player's push-and-pull bellows, makes reed vibrates send sound equipment.For improving the quality of accordion, need to when making, guarantee that the impermeability of accordion has relatively high expectations, thereby just can guarantee to send the tone color of accurate grace.
Therefore impermeability is accordion key technical index, and Chinese accordion product was all to judge with sense organ by rule of thumb to bubble-tight detection in the past, and for example pull-up bellows are seen the sagging speed of closing up of bellows, can only qualitatively fail quantitatively to detect accordion impermeability.Also there is not at present a kind of simple to operate and method of accurately reading numerical value, therefore neither one criterion value when whether the whole impermeability of identifying an accordion is qualified, also to consumer, when choosing qin, cannot judge exactly that whether whole impermeability is qualified, and whether the impermeability of accordion meets the data value of player's gas consumption playing skill demand simultaneously.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of testing process convenient light and handy, and function realizes simple and practical, and does not destroy the air-tightness detection device of the accordion body of product structure.
The purpose of this utility model is achieved in that
The air-tightness detection device of the utility model accordion body, comprise source of the gas, the gas that source of the gas provides passes into pipeline after regulating input pressure by Manual voltage-transformation device, the other end of described pipeline is connected to the first flexible pipe, the end of the first flexible pipe joins by air admission hole joint and tested accordion, the venthole joint of described tested accordion is connected with the second flexible pipe, described the first flexible pipe rear end is connected to input air pressure table near tested accordion air inlet position, and the second flexible pipe front end is connected to output pressure table near tested accordion venthole place.
Described input air pressure table and output pressure table are numerical value formula tensimeter, and manometric precision is handkerchief.
The caliber of described pipeline is 6mm, and the first flexible pipe rear end is 2mm near the caliber of tested accordion air inlet position, and the second flexible pipe is 2mm near the caliber of tested accordion venthole joint.
Described source of the gas is vacuum air pump.
The air-tightness detection device of the utility model accordion body has the following advantages:
The air-tightness detection device of the utility model accordion body is transferred to 6000 ± 20Pa by adjusting Manual voltage-transformation device by the air pressure showing on input air pressure table, the reading of observing subsequently output pressure table whether >=580Pa, thereby whether the impermeability that draws tested accordion is qualified, and can accurately measure its gas leakage value, and then can judge the quality of accordion.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air-tightness detection device of the utility model accordion body.
In figure: source of the gas 1, Manual voltage-transformation device 2, pipeline 3, the first flexible pipe 4, tested accordion 5, the second flexible pipe 6, input air pressure table 7, output pressure table 8.
Embodiment
Referring to Fig. 1, utility model relates to a kind of air-tightness detection device of accordion body, comprise source of the gas 1, described source of the gas 1 provides the source of the gas with certain pressure to subsequent detection, normal is vacuum air pump, the gas that source of the gas 1 provides passes into pipeline 3 after regulating input pressure by Manual voltage-transformation device 2, the other end of described pipeline 3 is connected to the first flexible pipe 4, the end of the first flexible pipe 4 joins by air admission hole joint and tested accordion 5, due to caliber too conference cause air pressure too little, too little meeting causes flow inadequate, therefore the caliber of pipeline 3 is 6mm, the first flexible pipe 4 rear ends are 2mm near the caliber of air admission hole joint, the venthole joint of described tested accordion 5 is connected with the second flexible pipe 6, by second pipe 6, pick out, the second flexible pipe 6 is 2mm near the caliber of tested accordion 5 venthole joints, described the first flexible pipe 4 rear ends are connected to input air pressure table 7 near tested accordion 5 air inlet positions, the second flexible pipe 6 front ends are connected to output pressure table 8 near tested accordion 5 venthole places, described input air pressure table 7 and output pressure table 8 are numerical value formula tensimeter, while having avoided using pointer pressure, pointer rocks always in the past, problem that cannot accurate reading, and manometric precision is handkerchief, can measure exactly.
While measuring the impermeability of accordion, by adjusting Manual voltage-transformation device 2, the air pressure showing on input air pressure table 7 is transferred to 6000 ± 20Pa, the reading of observing subsequently output pressure table 8 whether >=580Pa, thereby whether the impermeability that draws tested accordion 5 is qualified, and can accurately measure its gas leakage value, and then can judge the quality of accordion.
Claims (4)
1. the air-tightness detection device of an accordion body, it is characterized in that: it comprises source of the gas (1), the gas that source of the gas (1) provides passes into pipeline (3) after regulating input pressure by Manual voltage-transformation device (2), the other end of described pipeline (3) is connected to the first flexible pipe (4), the end of the first flexible pipe (4) joins by air admission hole joint and tested accordion (5), the venthole joint of described tested accordion (5) is connected with the second flexible pipe (6), described the first flexible pipe (4) rear end is connected to input air pressure table (7) near tested accordion (5) air inlet position, the second flexible pipe (6) front end is connected to output pressure table (8) near tested accordion (5) venthole place.
2. the air-tightness detection device of a kind of accordion body according to claim 1, is characterized in that: described input air pressure table (7) and output pressure table (8) are numerical value formula tensimeter, and manometric precision is handkerchief.
3. the air-tightness detection device of a kind of accordion body according to claim 1, it is characterized in that: the caliber of described pipeline (3) is 6mm, the first flexible pipe (4) rear end is 2mm near the caliber of tested accordion (5) air inlet position, and the second flexible pipe (6) is 2mm near the caliber of tested accordion (5) venthole joint.
4. the air-tightness detection device of a kind of accordion body according to claim 1, is characterized in that: described source of the gas (1) is vacuum air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522251.7U CN203455148U (en) | 2013-08-26 | 2013-08-26 | Air tightness detecting device for accordion body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522251.7U CN203455148U (en) | 2013-08-26 | 2013-08-26 | Air tightness detecting device for accordion body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203455148U true CN203455148U (en) | 2014-02-26 |
Family
ID=50135014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320522251.7U Expired - Lifetime CN203455148U (en) | 2013-08-26 | 2013-08-26 | Air tightness detecting device for accordion body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203455148U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424234A (en) * | 2013-08-26 | 2013-12-04 | 江阴金杯安琪乐器有限公司 | Air-tightness detecting device of body of accordion |
| CN105241619A (en) * | 2015-10-30 | 2016-01-13 | 南京化工特种设备检验检测研究所 | Detection apparatus of leakage of pressure container |
-
2013
- 2013-08-26 CN CN201320522251.7U patent/CN203455148U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424234A (en) * | 2013-08-26 | 2013-12-04 | 江阴金杯安琪乐器有限公司 | Air-tightness detecting device of body of accordion |
| CN105241619A (en) * | 2015-10-30 | 2016-01-13 | 南京化工特种设备检验检测研究所 | Detection apparatus of leakage of pressure container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |
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| CX01 | Expiry of patent term |