CN204314161U - A kind of air-cushion inflator pressure-resistant test system - Google Patents
A kind of air-cushion inflator pressure-resistant test system Download PDFInfo
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- CN204314161U CN204314161U CN201420772820.8U CN201420772820U CN204314161U CN 204314161 U CN204314161 U CN 204314161U CN 201420772820 U CN201420772820 U CN 201420772820U CN 204314161 U CN204314161 U CN 204314161U
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Abstract
The utility model discloses a kind of air-cushion inflator pressure-resistant test system, comprise test pump, stop valve, tensimeter and protective cover; Also comprise one and be connected to accumulation of energy cylinder between test pump and test container; Described accumulation of energy cylinder comprises cylinder body and is arranged on the piston in cylinder body; Described inner chamber of cylinder block is divided into accumulation of energy chamber and dielectric cavity by piston, and described dielectric cavity is communicated with the pipeline between test pump and test container; In described accumulation of energy chamber, be sealed with accumulation of energy gas, the medium in described dielectric cavity is water.It is by optimizing existing hydraulic testing system, a storage pressure unit is used to carry out abrupt release again after accumulation of energy, the gas generator container of test is produced to the pressure of a moment, thus can instantaneous pressure that closer gunpowder explosion produces in analog gas generator container, significant to new product material type selecting, Product jointing strength test.
Description
Technical field
The utility model relates to a kind of pressure-resistant test system of pressure vessel, particularly relates to a kind of pressure-resistant test system of air-cushion inflator container.
Background technology
Along with the development of safe automobile air bag industry, the testing requirements for airbag unit is also more and more perfect.In the R&D process of gas generator, in order to assess the withstand voltage properties of gas generator container at igniting explosion time, usually require the withstand voltage test it being done to pressure vessel.
" Hydraulics and pneumatics " of the 1st phase in 1989 discloses " hydraulic testing of high pressure vessel " (author: Yang Shuisheng), this pilot system as shown in Figure 1, the fluid media (medium) of test and the fluid media (medium) of control system are same liquid, drive hydraulic pump to provide actuating medium by a power source.This equipment comprises test pump, reversal valve, safety screen and tensimeter.
The relatively common pressure vessel of gas generator container its there is certain difference.What usual pressure container bore is a lasting pressure, and gas generator container need bear is the pressure of a moment.Therefore, adopt existing hydraulic testing system to be difficult to meet testing requirements, need a kind of test macro closer to actual pressure state.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of air-cushion inflator pressure-resistant test system, it is by optimizing existing hydraulic testing system, a storage pressure unit is used to carry out abrupt release again after accumulation of energy, the gas generator container of test is produced to the pressure of a moment, thus can instantaneous pressure that closer gunpowder explosion produces in analog gas generator container, significant to new product material type selecting, Product jointing strength test.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of air-cushion inflator pressure-resistant test system, comprises test pump, stop valve, tensimeter and protective cover; Also comprise one and be connected to accumulation of energy cylinder between test pump and test container; Described accumulation of energy cylinder comprises cylinder body and is arranged on the piston in cylinder body; Described inner chamber of cylinder block is divided into accumulation of energy chamber and dielectric cavity by piston, and described dielectric cavity is communicated with the pipeline between test pump and test container; In described accumulation of energy chamber, be sealed with accumulation of energy gas, the pressure medium in described dielectric cavity is water.It is by optimizing existing hydraulic testing system, a storage pressure unit is used to carry out abrupt release again after accumulation of energy, the gas generator container of test is produced to the pressure of a moment, thus can instantaneous pressure that closer gunpowder explosion produces in analog gas generator container, significant to new product material type selecting, Product jointing strength test.
As preferred technical scheme, described accumulation of energy gas is air.Air is got convenient, and device structure is simple, and cost is low.And further in order to increase the durable reliability of accumulation of energy cylinder, described accumulation of energy gas is inert gas.
Particularly, described test pump is pneumatically powered hydraulic pump.
The utility model is by optimizing existing hydraulic testing system, a storage pressure unit is used to carry out abrupt release again after accumulation of energy, the gas generator container of test is produced to the pressure of a moment, thus can instantaneous pressure that closer gunpowder explosion produces in analog gas generator container, significant to new product material type selecting, Product jointing strength test.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing water test unit.
Fig. 2 is structural representation of the present utility model.
Wherein: test pump 1, accumulation of energy cylinder 2, cylinder body 21, piston 22, accumulation of energy chamber 23, dielectric cavity 24, stop valve 3, tensimeter 4, protection water jacket 5, test container 6, accumulation of energy gas 7, pressure medium 8.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described specifically:
See Fig. 2, a kind of air-cushion inflator pressure-resistant test system, comprises test pump 1, stop valve 3, accumulation of energy cylinder 2, tensimeter 4 and protection water jacket 5.In the present embodiment, this test pump 1 is a pneumatically powered hydraulic pump.This stop valve 3 be provided with three be separately positioned on test pump 1 before, after test pump 1 and before test container 6, this accumulation of energy cylinder 2 is connected between test pump 1 and test container 6.
The piston 22 that accumulation of energy cylinder 2 comprises a cylinder body 21 and is arranged in cylinder body 21.This piston 22 slides and cylinder body 21 inner chamber is divided into accumulation of energy chamber 23 and dielectric cavity 24 in cylinder body 21.This accumulation of energy chamber 23 is filled with accumulation of energy gas 7 in sealing, and this accumulation of energy gas 7 is air in the present embodiment, and this dielectric cavity 24 is by joint and the pipeline connection between test pump 1 and test container 6.And the tie point of this pipeline is positioned between the stop valve after test pump 1 and the stop valve before test container, and is connected with tensimeter 4 on this tie point.This tensimeter 4 is for the pressure of pressure medium 8 in display medium chamber 24.In the present embodiment, this pressure medium 8 is water.Parts after test pump 1 are all arranged in a protection water jacket 5.
During use, first close the stop valve before test container, the stop valve before opening test pump and after test pump, makes whole current be in sealing state.Test pump adopts the pressure of 0.7MPa to carry out supercharging to aqueous medium, and the piston that aqueous medium promotes in accumulation of energy cylinder moves to accumulation of energy cavity direction and extrudes the air be sealed in accumulation of energy chamber.Observed pressure table, after pressure medium reaches the pressure of test request, opens the stop valve before test container, the pressurized air undergoes rapid expansion in accumulation of energy chamber, and promotion piston makes aqueous medium inject rapidly test container and produces concussion burst.
This test macro utilizes air in accumulation of energy cylinder to expand and promotes depth pistion analog gas generator duty to the impulsive force of test container, can the material type selecting of Validity Test new product gas generator container and weld strength test.The gas be arranged in accumulation of energy chamber more can adopt inert gas, due to the characteristic of inert gas, can increase the durable reliability of accumulation of energy cylinder.
Specific embodiment is to more clearly understand the utility model, do not limit as to the one of the utility model right, under the prerequisite not departing from the utility model aim, various change can be had, all these to the apparent amendment of described those skilled in the art by be included in this claim scope within.
Claims (4)
1. an air-cushion inflator pressure-resistant test system, comprises test pump, stop valve, tensimeter and protective cover; It is characterized in that: also comprise one and be connected to accumulation of energy cylinder between test pump and test container; Described accumulation of energy cylinder comprises cylinder body and is arranged on the piston in cylinder body; Described inner chamber of cylinder block is divided into accumulation of energy chamber and dielectric cavity by piston, and described dielectric cavity is communicated with the pipeline between test pump and test container; In described accumulation of energy chamber, be sealed with accumulation of energy gas, the pressure medium in described dielectric cavity is water.
2. pressure-resistant test system according to claim 1, is characterized in that: described accumulation of energy gas is air.
3. pressure-resistant test system according to claim 1, is characterized in that: described accumulation of energy gas is inert gas.
4. the pressure-resistant test system according to claim 1 or 2 or 3, is characterized in that: described test pump is pneumatically powered hydraulic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772820.8U CN204314161U (en) | 2014-12-10 | 2014-12-10 | A kind of air-cushion inflator pressure-resistant test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772820.8U CN204314161U (en) | 2014-12-10 | 2014-12-10 | A kind of air-cushion inflator pressure-resistant test system |
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| CN204314161U true CN204314161U (en) | 2015-05-06 |
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| CN201420772820.8U Active CN204314161U (en) | 2014-12-10 | 2014-12-10 | A kind of air-cushion inflator pressure-resistant test system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156394A (en) * | 2015-09-14 | 2015-12-16 | 太原科技大学 | Novel rolling-cut shear hydraulic system |
| CN110398420A (en) * | 2019-08-19 | 2019-11-01 | 艾尔希庆华(西安)汽车有限公司 | A kind of quick-fried reinspection test method of gas generator liquid |
| CN113252466A (en) * | 2021-05-25 | 2021-08-13 | 中石化石油工程技术服务有限公司 | High-temperature-resistant pressure-bearing test device and method for soluble ball seat |
-
2014
- 2014-12-10 CN CN201420772820.8U patent/CN204314161U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156394A (en) * | 2015-09-14 | 2015-12-16 | 太原科技大学 | Novel rolling-cut shear hydraulic system |
| CN105156394B (en) * | 2015-09-14 | 2017-05-10 | 太原科技大学 | Control method for rolling-cut shear hydraulic system |
| CN110398420A (en) * | 2019-08-19 | 2019-11-01 | 艾尔希庆华(西安)汽车有限公司 | A kind of quick-fried reinspection test method of gas generator liquid |
| CN113252466A (en) * | 2021-05-25 | 2021-08-13 | 中石化石油工程技术服务有限公司 | High-temperature-resistant pressure-bearing test device and method for soluble ball seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 313104 Changxing County Agricultural Institute, Zhejiang Patentee after: Jun Sheng automotive safety system (Changxin) Co., Ltd. Address before: 313104 Changxing County Agricultural Institute, Changxing County City, Zhejiang Patentee before: Gao Tian (Changxin) automotive safety equipment Co., Ltd. |
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| CP03 | Change of name, title or address |