阅读说明：本技术 适用于高压气体弹射试验装置的易碎盖止动结构 (Fragile cover stop structure suitable for high-pressure gas ejection test device ) 是由 邓春 赵博文 党海燕 张志勇 于 2019-11-07 设计创作，主要内容包括：本发明涉及一种适用于高压气体弹射试验装置的易碎盖止动结构,属于发射技术领域。本发明提供一种适用于高压气体弹射试验装置的易碎盖止动结构,该方案结构简单,工作可靠,可以有效对飞出的易碎盖本体止动,防止易碎盖本体结构撞击甚至损坏被弹射物体；止动杆迎风面进行了低阻力设计,在有效止动易碎盖本体的同时,不阻碍高压气体在止动结构内的顺畅流动。(The invention relates to a fragile cover stop structure suitable for a high-pressure gas ejection test device, and belongs to the technical field of ejection. The invention provides a fragile cover stopping structure suitable for a high-pressure gas ejection test device, which has the advantages of simple structure and reliable work, and can effectively stop a flying-out fragile cover body and prevent the fragile cover body from impacting and even damaging an ejected object; the windward side of the stop rod is designed to be low in resistance, so that the fragile cover body is effectively stopped, and meanwhile, the smooth flowing of high-pressure gas in the stop structure is not hindered.)

1. A fragile cover stop structure suitable for a high-pressure gas ejection test device is characterized by comprising a lower flange (1), an upper flange (2), a stop structure body (3), a stop rod (4) and a reinforcing rib (5); the stop structure body (3) is of a cylindrical structure with openings at two ends, the lower end face of the stop structure body is provided with the lower flange (1), the upper end face of the stop structure body is provided with the upper flange (2), the middle part of the stop structure body is fixedly connected with the stop rod (4), and the stop rod (4) is positioned on the inner wall face of the stop structure body (3); the stop rod (4) is used for colliding with the fragile cover body after the fragile cover body flies out for a certain distance, so that the fragile cover body is stopped, and meanwhile, the impact force is transmitted to the lower flange (1) through the stop structure body (3) and the reinforcing ribs (5), so that the fragile cover is stopped; the stop rod (4) is formed by intersecting a plurality of strip-shaped rods at the same interval in the circumferential direction at the same angle, and the intersection point of the strip-shaped rods is the center of a circle of the bottom surface of the stop structure body (3); the lower flange (1) and the upper flange (2) are installation interfaces of a fragile cover stop structure, wherein the lower flange (1) is used for being connected with a high-pressure air storage chamber, and the upper flange (2) is used for being connected with a switching device; the reinforcing ribs (5) are arranged on the outer wall surface of the stop structure body (3) at equal intervals in the circumferential direction and are used for reinforcing the stop structure body (3) and transmitting force generated in the collision process of the fragile cover body and the stop rod (4) to the lower flange (1).

2. The frangible cap stop construction according to claim 1, wherein a mounting interface for a sealing ring is left on the lower flange (1).

3. The frangible cap stop construction of claim 1, wherein a gasket mounting interface is left on the upper flange (2).

4. The frangible cover stop structure according to claim 2, wherein a gasket is mounted on the lower flange (1).

5. The frangible cover stop structure of claim 3, wherein a gasket is mounted on the upper flange (2).

6. The frangible cap stop structure according to claim 3, wherein the stop bar (4) is comprised of three elongated bars that intersect at circumferentially spaced equal angles.

7. Frangible cover stop structure according to claim 3, characterized in that the stop bar (4) is of a m-shaped configuration.

8. A method of arresting a frangible cover body using a frangible cover stop according to any one of claims 1 to 7, comprising the steps of: when the high-pressure gas pressure of the high-pressure gas storage chamber reaches the opening pressure of the fragile cover, the fragile cover is broken, the fragile cover body flies out under the action of the high-pressure gas, the fragile cover body collides with the stop rod (4) after flying out for a certain distance, the stop rod (4) stops the fragile cover body, and meanwhile, the stop rod (4) transmits the impact force to the lower flange (1) through the stop structure body (3) and the reinforcing rib (5), so that the stop of the fragile cover is realized.

Technical Field

The invention belongs to the technical field of launching, and particularly relates to a stop structure of a fragile cover, which is suitable for a high-pressure gas ejection test device.

Background

In the high-pressure gas ejection testing device, after the high-pressure gas storage chamber is inflated by an external gas source, the pressure of the high-pressure gas storage chamber rises, after a certain pressure value is reached, the fragile cover between the high-pressure gas storage chamber and the low-pressure chamber is automatically broken, the high-pressure gas is released to enter the low-pressure chamber, and a moving object moves under the action of the high-pressure gas, so that the aim of giving a certain movement speed to the ejected object is fulfilled. After the frangible cover is broken, the body structure of the frangible cover can move upwards at a high speed under the action of high-pressure gas, and can impact an ejected object and even damage the ejected object; accordingly, it is desirable to design the frangible cap stop structure to prevent damage to the ejected object caused by the impact of the frangible cap body structure against the ejected object.

Disclosure of Invention

Technical problem to be solved

The technical problem to be solved by the invention is as follows: how to design a stop structure of the fragile cover suitable for the high-pressure gas ejection test device, the brake of the fragile cover body is realized, and the object to be ejected is prevented from being impacted and even damaged by the structure of the fragile cover body.

(II) technical scheme

In order to solve the technical problem, the invention provides a fragile cover stop structure suitable for a high-pressure gas ejection test device, which comprises a lower flange 1, an upper flange 2, a stop structure body 3, a stop rod 4 and a reinforcing rib 5; the stop structure body 3 is a cylindrical structure with openings at two ends, the lower end surface is provided with the lower flange 1, the upper end surface is provided with the upper flange 2, the middle part is fixedly connected with the stop rod 4, and the stop rod 4 is positioned on the inner wall surface of the stop structure body 3; the stop rod 4 is used for colliding with the fragile cover body after the fragile cover body flies out for a certain distance, so that the fragile cover body is stopped, and meanwhile, the impact force is transmitted to the lower flange 1 through the stop structure body 3 and the reinforcing ribs 5, so that the stop of the fragile cover is realized; the stop rod 4 is formed by intersecting a plurality of strip-shaped rods at the same angle at intervals in the circumferential direction, and the intersection point of the plurality of strip-shaped rods is the center of a circle on the bottom surface of the stop structure body 3; the lower flange 1 and the upper flange 2 are installation interfaces of a fragile cover stop structure, wherein the lower flange 1 is used for being connected with a high-pressure air storage chamber, and the upper flange 2 is used for being connected with a switching device; the reinforcing ribs 5 are arranged at equal intervals in the circumferential direction on the outer wall surface of the stop structure body 3 and are used for reinforcing the stop structure body 3 and transmitting force generated in the collision process of the fragile cover body and the stop rod 4 to the lower flange 1.

Preferably, a mounting interface of the sealing ring is left on the lower flange 1.

Preferably, a mounting interface of the sealing ring is left on the upper flange 2.

Preferably, a sealing ring is mounted on the lower flange 1.

Preferably, a sealing ring is mounted on the upper flange 2.

Preferably, the stop rod 4 is composed of three elongated rods which are circumferentially spaced and intersect at the same angle.

Preferably, the stopping rod 4 has a structure like a Chinese character mi.

The invention also provides a method for realizing braking on the fragile cover body by using the fragile cover stopping structure, which comprises the following steps: when the high-pressure gas pressure of high-pressure gas receiver reaches the opening pressure of breakable lid, breakable lid breaks, and breakable lid body flies out under high-pressure gas's effect, and breakable lid body flies out the certain distance back, collides with stop lever 4, and stop lever 4 makes breakable lid body locking, and simultaneously, stop lever 4 passes through stop structure body 3 and strengthening rib 5, conducts the impact to flange 1 down to the realization is to the locking of breakable lid.

(III) advantageous effects

The invention provides a fragile cover stopping structure suitable for a high-pressure gas ejection test device, which has the advantages of simple structure and reliable work, and can effectively stop a flying-out fragile cover body and prevent the fragile cover body from impacting and even damaging an ejected object; the windward side of the stop rod is designed to be low in resistance, so that the fragile cover body is effectively stopped, and meanwhile, the smooth flowing of high-pressure gas in the stop structure is not hindered.

Drawings

FIG. 1 is a schematic view of a stop structure of a frangible cover suitable for use in a high pressure gas ejection test apparatus according to the present invention;

fig. 2 is a schematic view of the stopping principle of the stopping structure of the frangible cover suitable for the high-pressure gas ejection test device.

Wherein: 1-lower flange, 2-upper flange, 3-stop structure body, 4-stop rod, 5-reinforcing rib.

Detailed Description

In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.

As shown in fig. 1, the invention provides a fragile cover stop structure suitable for a high-pressure gas ejection test device, which comprises a lower flange 1, an upper flange 2, a stop structure body 3, a stop rod 4 and a reinforcing rib 5; the stop structure body 3 is a cylindrical structure with openings at two ends, the lower end surface is provided with the lower flange 1, the upper end surface is provided with the upper flange 2, the middle part is fixedly connected with the stop rod 4, and the stop rod 4 is positioned on the inner wall surface of the stop structure body 3; the stop rod 4 is used for colliding with the fragile cover body after the fragile cover body flies out for a certain distance, so that the fragile cover body is stopped, and meanwhile, the impact force is transmitted to the lower flange 1 through the stop structure body 3 and the reinforcing ribs 5, so that the stop of the fragile cover is realized; the stop rod 4 is formed by intersecting a plurality of strip-shaped rods, the intersection point of the strip-shaped rods is the center of a circle of the bottom surface of the stop structure body 3, and the low resistance design of the windward surface of the stop rod 4 can effectively stop the fragile cover body and simultaneously can not prevent high-pressure gas from smoothly flowing in the stop structure; the lower flange 1 and the upper flange 2 are mounting interfaces of a fragile cover stop structure, and mounting interfaces of sealing rings are respectively reserved on the lower flange 1 and the upper flange 2 so as to ensure the airtightness of the connection part, wherein the lower flange 1 is used for being connected with a high-pressure air storage chamber, and the upper flange 2 is used for being connected with a switching device; the reinforcing ribs 5 are arranged at equal intervals in the circumferential direction on the outer wall surface of the stop structure body 3 and are used for reinforcing the stop structure body 3 and transmitting force generated in the collision process of the fragile cover body and the stop rod 4 to the lower flange 1.

When the stop structure is installed, the lower flange 1 is installed at the upper end of the high-pressure air storage chamber. When the stop structure is used, when the high-pressure gas pressure of the high-pressure gas storage chamber reaches the opening pressure of the fragile cover, the fragile cover is broken, the fragile cover body flies out under the action of the high-pressure gas, the fragile cover body flies out for a certain distance and collides with the stop rod 4, the stop rod 4 stops the fragile cover body, and meanwhile, the stop rod 4 transmits the impact force to the lower flange 1 through the stop structure body 3 and the reinforcing rib 5, so that the stop of the fragile cover is realized.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.