CN104121113A - Plugging-type interlayer for multi-pulse fuel gas generation device - Google Patents

Abstract

The invention discloses a plugging interlayer for a multi-pulse gas generator, relates to a plugging interlayer, and belongs to the field of gas generators. The invention includes a mounting sleeve, a coupling screw, a plug and a gasket. The plug is placed inside the mounting sleeve. The gasket is placed over the plug, mounting sleeve. The connecting screw is fixedly installed in the threaded hole of the mounting sleeve through the gasket, which plays the role of fixing the gasket and blocking. The invention also discloses a method for using the blocked compartment of the multi-pulse gas generating device. The outer surface of the installation sleeve of the invention is tapped with external threads, which is convenient for processing and installation, and has strong replaceability. It can be designed into different models and sizes according to different application occasions. Each pulse in the pulse gas generating device works normally and independently, with simple and reliable structure and low cost.

Description

A plugging compartment for multi-pulse gas generator

technical field

The invention relates to a plugging interlayer, in particular to a plugging interlayer used for a multi-pulse gas generator, and belongs to the field of gas generators.

Background technique

At present, the stage interval control between each pulse of the multi-pulse gas generator is mostly realized by the control valve, and the opening and closing of the valve needs to be controlled by the hydraulic control system. Stability, high production cost, and a multi-pulse gas generating device that does not require high control accuracy, the use of control valves is undoubtedly a great waste of resources.

Contents of the invention

The technical problem to be solved by the present invention is to provide a plugging interlayer for a multi-pulse gas generating device, which fully and skillfully utilizes the structural characteristics of the plugging itself to ensure that each pulse is independent of each other when the multi-pulse gas generating device is working. Do not interfere. The invention also has the advantages of simple and reliable structure and low cost.

The purpose of the present invention is achieved through the following technical solutions.

A plug-type interlayer for a multi-pulse gas generating device disclosed by the invention comprises: a mounting sleeve, a connecting screw, a plug, and a gasket.

The cross-section of the plugging shape is a trapezoidal cylinder, the first half of which is a cylinder, and the second half of which is a cone.

The outer surface of the installation sleeve is a cylinder, the first half of the inner surface is cylindrical, and the second half is conical, which matches the shape of the plug. Threaded holes are arranged on the side surface of the larger inner hole diameter of the mounting sleeve, and the threaded holes are distributed symmetrically in the circumferential direction. The outer surface of the mounting sleeve is tapped with threads.

Connection relationship: the plug is placed in the installation sleeve; the gasket is placed on the plug and the installation sleeve; the connecting screw is fixed and installed in the threaded hole of the installation sleeve through the gasket, which plays the role of fixing the gasket and the plug.

The number of threaded holes on the mounting sleeve is at least two.

The installation sleeve and the plug are in the shape of a cylinder, and the material is metal.

The plug-type interlayer used in the multi-pulse gas generating device is installed between every two pulse partitions and connected by threads.

A method of using a plugged compartment for a multi-pulse gas generating device: when in use, the pulse on the side of the cone close to the plug works first to generate gas. Due to the structure of the block itself, as the pressure in the combustion chamber increases, the block The higher the pressure, the tighter it is, which ensures the good sealing of the combustion chamber and the independence of this working pulse, which will not affect the work of the next pulse. The gas is ejected through the corresponding gas channel, and this pulse works Complete; when the next pulse works, gas is generated, the pressure in the combustion chamber increases, and acts on the side of the cylinder close to the blockage. Due to the blockage's own structure, the plug will act on the gasket. As the gas continues to be generated, the pressure increases. Destroy the thread pair of the screw connecting the gasket, and the plug will be opened smoothly to ensure the smooth operation of this pulse.

Beneficial effect

1. A plugging interlayer used in a multi-pulse gas generating device of the present invention makes full use of the axial one-way restriction of the plugging itself to ensure the normal and independent work of each pulse in the multi-pulse gas generating device. The structure Simple, reliable and low cost.

2. A plug-type interlayer used in a multi-pulse gas generating device of the present invention, the outer surface of the installation sleeve is tapped with external threads, which is convenient for processing and installation, and has strong replaceability. It can be designed into different models and sizes according to different application occasions .

Description of drawings

Fig. 1 is a kind of structure schematic diagram of the blocking type interlayer used in the multi-pulse gas generating device of the present invention;

Fig. 2 is a front view of a plugged interlayer used in a multi-pulse gas generating device of the present invention;

Fig. 3 is a perspective view of a plugged compartment structure used in a multi-pulse gas generating device according to the present invention.

In the figure, 1-installation sleeve; 2-coupling screw; 3-blocking; 4-gasket.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example 1

A plug-type interlayer disclosed in this embodiment for a multi-pulse gas generator includes: a mounting sleeve 1 , a connecting screw 2 , a plug 3 , and a gasket 4 .

The plug 3 is shaped like a trapezoidal cylinder in cross section, the first half of which is a cylinder, and the second half of which is a cone.

The outer surface of the installation sleeve 1 is a cylinder, the first half of the inner surface is cylindrical, and the second half is conical, which matches the shape of the plug 3 . Threaded holes are formed on the side of the mounting sleeve 1 with a larger inner hole diameter, and the threaded holes are distributed symmetrically in the circumferential direction. The outer surface of the mounting sleeve 1 is threaded.

Connection relationship: the plug 3 is placed in the installation sleeve 1; the gasket 4 is placed on the plug 3 and the installation sleeve 1; the connecting screw 2 is fixed and installed in the threaded hole of the installation sleeve 1 through the gasket 4, and plays a role in fixing the gasket 4, The effect of clogging 3.

The number of threaded holes on the mounting sleeve 1 is at least two.

The installation sleeve 1 and the plug 3 are in the shape of cylinders, and the materials are metal materials.

The plug-type interlayer used in the multi-pulse gas generating device is installed between every two pulse partitions and connected by threads.

A method of using a plugged compartment for a multi-pulse gas generating device: when in use, the pulse on the conical side close to the plug 3 works first to generate gas. Due to the structure of the plug 3 itself, as the pressure in the combustion chamber increases , the more the plug 3 is pressed, the tighter it is, which ensures the good sealing of the combustion chamber and the independence of this working pulse, which will not affect the work of the next pulse. The gas is ejected through the corresponding gas channel, which One pulse work is completed; when the next pulse works, gas is generated, the pressure in the combustion chamber increases, and acts on the side of the cylinder close to the plug 3, due to the structure of the plug 3, the plug will act on the gasket, with the continuous generation of gas , the pressure increases, destroying the thread pair of the screw connecting the gasket 4, and the plug 3 is opened smoothly to ensure that this pulse works smoothly.

The scope of protection of the present invention is not limited to this embodiment, which is used to explain the present invention, and all changes or modifications under the same principle and conceptual conditions as the present invention are within the scope of protection disclosed by the present invention.

Claims (5)

1. A plugging interlayer for a multi-pulse gas generating device, characterized in that: it includes an installation cover (1), a coupling screw (2), a plug (3), a gasket (4); the plug ( 3) A cylinder with a trapezoidal cross-section, the first half of which is a cylinder, and the second half of which is a cone; the outer surface of the installation sleeve (1) is a cylinder, the first half of the inner surface is cylindrical, and the second half It is conical and matches the shape of the plug (3); there are threaded holes on the side of the mounting sleeve (1) with a larger inner hole diameter, and the threaded holes are distributed symmetrically in the circumferential direction; the outer surface of the mounting sleeve (1) is tapped There are threads; the connection relationship, the plug (3) is placed in the installation sleeve (1); the gasket (4) is placed on the plug (3) and the installation sleeve (1); the connecting screw (2) is fixed through the gasket (4) It is installed in the threaded hole of the mounting sleeve (1), and plays the role of fixing the gasket (4) and plugging (3). 2. A plugging interlayer for a multi-pulse gas generating device according to claim 1, characterized in that: the number of threaded holes on the installation sleeve (1) is an even number, at least two, and the circumferential direction Symmetrical distribution. 3. A plug-type interlayer for a multi-pulse gas generating device according to claim 1 or 2, characterized in that the materials of the installation sleeve (1) and the plug (3) are preferably metal materials. 4. A plugging interlayer for a multi-pulse gas generating device as claimed in claim 3, characterized in that: said plugging interlayer is installed between every two pulse partitions and connected by threads . 5. A method of using a plugged interlayer for a multi-pulse gas generating device, characterized in that: when in use, the pulse on the conical side close to the plug (3) works first to generate gas, due to the plug (3) itself Structure, as the pressure in the combustion chamber increases, the plug (3) becomes tighter and tighter, which ensures the good sealing of the combustion chamber and the independence of this working pulse, which will not affect the next pulse The gas is ejected through the corresponding gas channel, and this pulse work is completed; when the next pulse works, gas is generated, the pressure in the combustion chamber increases, and acts on the side of the cylinder close to the blockage (3), due to the blockage (3) With its own structure, the plug will act on the gasket, and as the gas continues to be produced, the pressure will increase, destroying the thread pair of the screw connecting the gasket (4), and the plug (3) will be opened smoothly to ensure that this pulse works smoothly.