阅读说明：本技术 基于弹簧蓄能的***片刺穿装置及供氧方法 (Rupture disk piercing device based on spring energy storage and oxygen supply method ) 是由 惠永强 耿旭 吴晶晶 于 2019-09-09 设计创作，主要内容包括：本发明属于民用飞机供氧的激发启动装置,涉及一种基于弹簧蓄能的爆破片刺穿装置,具体包括：高压壳体、碟形弹簧、外壳体、固定垫片、弹性卡簧、撞针、弹簧、密封圈以及钢球。本发明提出的具备撞针功能的爆破片刺穿装置,能够满足民用航空旅客应急供氧启动要求。(The invention belongs to an excitation starting device for oxygen supply of a civil aircraft, and relates to a rupture disk puncturing device based on spring energy storage, which specifically comprises: high-pressure casing, belleville spring, shell body, fixed shim, elasticity jump ring, firing pin, spring, sealing washer and steel ball. The rupture disk puncturing device with the firing pin function provided by the invention can meet the requirement of civil aviation passengers on emergency oxygen supply starting.)

1. A burst disc puncturing device based on spring energy storage is characterized by comprising a main shell (1), a gasket (4), a first spring (6), a steel ball (7), a firing pin (9) and an outer shell (3),

the main shell (1) comprises a cavity (10), a first through hole (11) and at least two second through holes (12), wherein the at least two second through holes (12) are positioned on the side wall of the cavity (10) of the main shell (1), the first through hole (11) is positioned at the bottom of the cavity (10), and the first through hole (11) is communicated with the cavity (10); the rupture disk (14) is arranged in the first through hole (11);

The striker (9) comprises a first annular groove (91), a second annular groove (92) and a body (90), wherein the first annular groove (91) is positioned on the inner side of the body (90), the second annular groove (92) is positioned on the outer side of the body (90), and the opening directions of the first annular groove (91) and the second annular groove (92) are opposite; one end of the body (90) is provided with a tip part for piercing the rupture disk (14); one end of the body (90) with a tip part is arranged in the first through hole (11) in a penetrating mode, and the first annular groove (91) and the second annular groove (92) are located in the cavity (10);

The first spring (6) is sleeved at one end of the body (90), one end of the first spring (6) is arranged in the second annular groove (92), the other end of the first spring is in contact with the gasket (4), the gasket (4) and the second annular groove (92) clamp the first spring (6), and the first spring (6) is used for applying downward elastic force to the body (90) of the striker (9); the gasket (4) is detachably and fixedly connected with the main shell (1);

The outer shell (3) is slidably sleeved outside the cavity (10) of the main shell (1), the part of the body (90) at the bottom of the second annular groove (92), the second through hole (12) and the outer shell (3) act together to limit the steel ball (7), and the body (90) of the striker (9) is supported by one side of the steel ball (7) to limit the striker (9); the diameter of the steel ball (7) is smaller than that of the second through hole (12).

2. The rupture disk piercing device according to claim 1, further comprising a second spring (2),

an annular circular truncated cone (13) is arranged on the outer side of the cavity (10) of the main shell (1), and the annular circular truncated cone (13) is used for supporting the second spring (2);

The outer shell (3) is in contact with one end of the second spring (2); the outer shell (3) is provided with a round hole close to the steel ball (7) so as to accommodate the steel ball (7).

3. The rupture disk piercing device according to claim 2, further comprising a snap spring (5), wherein one end of the snap spring (5) is fixed with the main housing (1) in a snap fit manner, and the other end of the snap spring (5) is in contact with the gasket (4) to limit the movement of the gasket (4).

4. a rupture disc piercing device according to claim 3, wherein the second spring (2) is a disc spring.

5. the rupture disk piercing device according to claim 1, further comprising a sealing ring (8), wherein the sealing ring (8) is sleeved on the body of the firing pin (9).

6. The rupture disk piercing device according to claim 5, wherein the bottom of the cavity (10) of the main housing (1) is further provided with an annular protrusion (110), the annular protrusion (110) is provided with a first through hole (11) along the axial direction, and the body (90) of the firing pin (9) is arranged through the first through hole (11);

a groove is formed in the annular protrusion (110) to fix the sealing ring (8).

7. The rupture disk piercing device according to claim 1, wherein the tip of the body (90) of the striker (9) is provided with a first gas through hole (901), the inner side of the first through hole (11) of the main housing (1) is provided with a second gas through hole (111), and the first gas through hole (901) and the second gas through hole (111) are communicated.

8. A method of oxygen supply based on a spring energized rupture disk puncturing device, utilizing the rupture disk puncturing device of any of claims 1 to 7, the method comprising,

Fixedly connecting an air inlet port of the main shell (1) with an oxygen source;

the outer shell (3) is pulled upwards, when the round hole of the outer shell (3) moves to a position corresponding to the steel ball (7), the first spring (6) pushes the firing pin (9), the part, located at the bottom of the second annular groove (92), of the firing pin (9) extrudes the steel ball (7), the steel ball (7) moves outwards and slides to the round hole of the outer shell (3), at the moment, the firing pin (9) moves downwards under the action of elastic force of the first spring (6), and the tip of the body (90) of the firing pin pierces through the rupture disk (14);

The first gas through hole (901) communicates with the second gas through hole (111) to supply oxygen.

Technical Field

The invention belongs to the technical field of civil aviation passenger emergency triggering, and particularly relates to a rupture disk puncturing device based on spring energy storage and an oxygen supply method.

Background

At present, the triggering of civil aviation passenger emergency oxygen supply in the form of taking oxygen as an oxygen source mainly adopts a switch form to provide an oxygen supply channel. Because of the trigger structure of the switch form, the function of puncturing the rupture disk is not provided, and the rupture disk can not be matched with the rupture disk and an oxygen cylinder for use.

accordingly, the existing oxygen supply control techniques have disadvantages including: the device does not have the function of firing pin and cannot be matched with a rupture disk and an oxygen cylinder for use.

Disclosure of Invention

the invention aims to provide a rupture disk puncturing device with a firing pin function so as to meet the requirement of civil aviation passengers on emergency oxygen supply starting. The rupture disk puncturing device integrates spring energy storage, puncturing firing pin and oxygen supply channel into a whole.

the invention provides a rupture disk piercing device based on spring energy storage, which comprises a main shell 1, a gasket 4, a first spring 6, a steel ball 7, a firing pin 9 and an outer shell 3,

The main shell 1 comprises a cavity 10, a first through hole 11 and at least two second through holes 12, wherein the at least two second through holes 12 are positioned on the side wall of the cavity 10 of the main shell 1, the first through hole 11 is positioned at the bottom of the cavity 10, and the first through hole 11 is communicated with the cavity 10; the rupture disk 14 is arranged in the first through hole 11;

The striker 9 comprises a first annular groove 91, a second annular groove 92 and a body 90, wherein the first annular groove 91 is positioned on the inner side of the body 90, the second annular groove 92 is positioned on the outer side of the body 90, and the first annular groove 91 and the second annular groove 92 are opened in opposite directions; one end of the body 90 is provided with a tip part for piercing the rupture disk 14; one end of the body 90 with a tip portion is arranged in the first through hole 11 in a penetrating manner, and the first annular groove 91 and the second annular groove 92 are located in the cavity 10;

The first spring 6 is sleeved at one end of the body 90, one end of the first spring 6 is arranged in the second annular groove 92, the other end of the first spring is in contact with the gasket 4, and the gasket 4 and the second annular groove 92 clamp the first spring 6; the gasket 4 is detachably and fixedly connected with the main shell 1;

The outer shell 3 is sleeved outside the cavity 10 of the main shell 1, the part of the body 90 at the bottom of the second annular groove 92, the second through hole 12 and the outer shell 3 act together to limit the steel ball 7, and one side of the steel ball 7 supports the body 90 of the striker 9 to limit the striker 9; the diameter of the steel ball 7 is smaller than that of the second through hole 12.

further, the rupture disk piercing device further comprises a second spring 2, an annular circular truncated cone 13 is arranged outside the cavity 10 of the main shell 1, and the annular circular truncated cone 13 is used for supporting the second spring 2;

The outer housing 3 is in contact with one end of the second spring 2; the outer shell 3 is provided with a round hole close to the steel ball 7, so that the steel ball 7 can be conveniently accommodated.

further, the rupture disk piercing device further comprises a clamp spring 5, one end of the clamp spring 5 is fixedly clamped with the main shell 1, and the other end of the clamp spring 5 is in contact with the gasket 4 to limit the movement of the gasket 4.

Further, the second spring 2 is a disc spring.

Further, the rupture disk puncturing device further comprises a sealing ring 8, and the body of the firing pin 9 is sleeved with the sealing ring 8.

further, an annular protrusion 110 is further disposed at the bottom of the cavity 10 of the main housing 1, the annular protrusion 110 is provided with a first through hole 11 along the axial direction, and the body 90 of the striker 9 is inserted into the first through hole 11; a groove is provided in the annular protrusion 110 to fix the sealing ring 8.

Further, the tip of the striker 9 body 90 is provided with a first air through hole 901, the inner side of the first through hole 11 of the main housing 1 is provided with a second air through hole 111, and the first air through hole 901 and the second air through hole 111 are communicated.

The invention has the technical effects that:

the spring energy storage structure and the firing pin structure are adopted, and when the device is used, the spring pushes the firing pin to pierce the rupture disk and deliver oxygen through the internal channel of the firing pin;

The invention integrates the spring energy storage, the puncture firing pin and the oxygen supply channel structure into one device, and has simple structure and convenient use.

drawings

FIG. 1 is a schematic structural diagram of a burst disk puncturing device based on spring energy storage according to the embodiment;

FIG. 2 is a schematic structural view of the main housing of the rupture disk piercing apparatus of the present embodiment;

fig. 3 is a schematic structural view of a striker of the rupture disk piercing apparatus of the present embodiment;

Fig. 4 is a schematic structural diagram of the punctured rupture disk puncturing device based on spring energy storage of the embodiment.

Detailed Description

the present invention will be described in further detail with reference to the accompanying drawings. Fig. 1 is a schematic structural diagram of a burst disk puncturing device based on spring energy storage according to the embodiment. Referring to fig. 1, the rupture disc piercing device includes a main housing 1, a spacer 4, a first spring 6, a steel ball 7 and a striker 9.

fig. 2 is a schematic structural diagram of the main housing of the rupture disk puncturing apparatus of this embodiment, and as shown in fig. 2, the main housing 1 includes a cavity 10, a first through hole 11 and two second through holes 12, the two second through holes 12 are located on a side wall of the cavity 10 of the main housing 1, the first through hole 11 is located at the bottom of the cavity 10, and the first through hole 11 is communicated with the cavity 10. The rupture disk 14 is arranged in the first through hole 11, and the diameter of the steel ball 7 is smaller than that of the second through hole 12.

Fig. 3 is a schematic structural view of the striker of the rupture disk piercing apparatus of the present embodiment, and as shown in fig. 3, the striker 9 includes a first annular groove 91, a second annular groove 92, and a body 90, the first annular groove 91 is located inside the body 90, the second annular groove 92 is located outside the body 90, and the first annular groove 91 and the second annular groove 92 are opened in opposite directions; one end of the body 90 is provided with a tip for piercing the rupture disc 14. One end of the body 90 with a tip portion is inserted into the first through hole 11, and the first annular groove 91 and the second annular groove 92 are located in the cavity 10.

as shown in fig. 1, the first spring 6 is sleeved on the body 90, one end of the first spring 6 is disposed in the second annular groove 92, the other end of the first spring 6 is in contact with the gasket 4, the gasket 4 and the second annular groove 92 clamp the first spring 6, and the first spring 6 is used for applying a downward elastic force to the body 90 of the striker 9; the gasket 4 is of an annular sheet structure and is detachably and fixedly connected with the main shell 1.

Referring to fig. 1 and 2, the rupture disk puncturing apparatus further includes an outer casing 3, and the outer casing 3 is sleeved outside the cavity 10 of the main casing 1. The part of the body 90 at the bottom of the second annular groove 92, the second through hole 12 and the outer shell 3 act together to limit the steel ball 7. Meanwhile, as one part of the steel ball 7 is positioned in the second through hole 12 and the other part of the steel ball is in contact with the part of the body 90 of the striker 9 positioned at the bottom of the second annular groove 92, the steel ball 7 supports the striker 9 and limits the striker 9.

The outer shell 3 is provided with a round hole, the round hole is close to the second through hole 12, when the outer shell 3 slides upwards, the steel ball 7 rolls towards the round hole of the outer shell 3, and the round hole is used for accommodating the steel ball 7.

In addition, the rupture disk puncture firing pin also comprises a second spring 2, an annular round table 13 is arranged outside the cavity 10 of the main shell 1, and the annular round table 13 is used for supporting the second spring 2; the second spring 2 is a disc spring.

Further, the rupture disk piercing device further comprises a clamp spring 5, one end of the clamp spring 5 is fixedly clamped with the main shell 1, and the other end of the clamp spring 5 is in contact with the gasket 4 to limit the movement of the gasket. Further, as shown in fig. 1, the rupture disk puncturing device further includes a sealing ring 8, and the body of the striker 9 is sleeved with the sealing ring 8. With reference to fig. 1 and 2, the bottom of the cavity 10 of the main housing 1 is further provided with an annular protrusion 110, the annular protrusion 110 is provided with a first through hole 11 in the axial direction, and the body 90 of the striker 9 is inserted into the first through hole 11. A groove is provided in the annular protrusion 110 to receive the sealing ring 8.

further, as shown in fig. 1, the tip of the striker 9 body 90 is provided with a first gas through hole 901, the inside of the first through hole 11 of the main casing 1 is provided with a second gas through hole 111, and the first gas through hole 901 and the second gas through hole 111 communicate.