CN218583899U - Low-cost safe explosion-proof mechanism applied to central tube-burst rocket - Google Patents
Low-cost safe explosion-proof mechanism applied to central tube-burst rocket Download PDFInfo
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- CN218583899U CN218583899U CN202222348751.5U CN202222348751U CN218583899U CN 218583899 U CN218583899 U CN 218583899U CN 202222348751 U CN202222348751 U CN 202222348751U CN 218583899 U CN218583899 U CN 218583899U
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Abstract
The utility model discloses a be applied to low-cost safe flame proof mechanism of central explosive tube formula rocket, include: the ignition device comprises a body, an ignition tube II, an ignition tube I, a sealing cover and a movable pin; the working reliability of the safe explosion-proof structure is ensured through the structural design and the assembly process, and if the time sequence is set correctly, the normal work of the rocket can be realized; if the time sequence setting is wrong, the ignition tube II works first, and high-pressure gas leaks out along the notch on the movable pin due to the staggered fire transfer channels, so that the central explosion tube cannot be ignited. In an initial state, a columnar cavity is reserved between the large-diameter end of the movable pin and the sealing cover, and the columnar cavity is communicated with an ignition tube mounting hole I of the body; when the explosion-proof mechanism works, the annular step surface of the movable pin is abutted against the step surface of the movable pin mounting hole of the body, and the radial fire transfer hole of the movable pin is communicated with the ignition tube mounting hole II and the central explosion tube mounting hole.
Description
Technical Field
The utility model belongs to the technical field of the rocket security design, concretely relates to be applied to low-cost safe flame proof mechanism of central booster rocket.
Background
Fuses (near-explosion, time-delay and collision-explosion) are widely applied to military rockets and cannon products at present, have the advantages of high safety, high reliability and the like, but are expensive and cost-increased for civil rockets, and are not suitable for mass production.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a be applied to low-cost safe flame proof mechanism of central explosive tube formula rocket, simple structure, the low price is fit for mass production.
The utility model discloses a realize through following technical scheme:
a low-cost safe explosion-proof mechanism applied to a central tube-burst rocket comprises: the ignition device comprises a body, an ignition tube II, an ignition tube I, a sealing cover and a movable pin;
the movable pin mounting hole, an igniter tube mounting hole I, an igniter tube mounting hole II and a central detonator mounting hole are processed on the body, the igniter tube mounting hole I is communicated with the movable pin mounting hole, the movable pin mounting hole is a stepped through hole, and the axes of the igniter tube mounting hole I and the igniter tube mounting hole II are respectively vertical to the axis of the movable pin mounting hole; the central tube explosion mounting hole is coaxial with the ignition tube mounting hole II, and the central tube explosion is mounted in the central tube explosion mounting hole of the body;
the ignition tube I is arranged in the ignition tube mounting hole I; the ignition tube II is arranged in the ignition tube mounting hole II;
the sealing cover is arranged at the end part of the large-diameter section of the movable pin mounting hole of the body and seals the end;
the movable pin is a stepped cylindrical rod, and a radial fire transfer hole is machined in the small-diameter section of the movable pin; the movable pin is arranged in the movable pin mounting hole of the body; in an initial state, a columnar cavity is reserved between the large-diameter end of the movable pin and the sealing cover, and the columnar cavity is communicated with the ignition tube mounting hole I of the body; when the explosion-proof mechanism works, the annular step surface of the movable pin is abutted against the step surface of the movable pin mounting hole of the body, and the radial fire transfer hole of the movable pin is communicated with the igniter tube mounting hole II and the central detonator mounting hole.
Furthermore, the igniter tube mounting hole I is intersected with the large-diameter section of the movable pin mounting hole, and the igniter tube mounting hole II is intersected with the small-diameter section of the movable pin mounting hole; when the removable pin was installed in the removable pin mounting hole of body, the big footpath section of removable pin and the big footpath section hole axle cooperation of the removable pin mounting hole of body, the path section of removable pin and the path section hole axle cooperation of the removable pin mounting hole of body.
Furthermore, the explosion-proof mechanism also comprises a limit pin;
the body is also provided with a limiting pin mounting blind hole penetrating through the movable pin mounting hole, and the axis of the limiting pin mounting blind hole is vertical to the axis of the movable pin mounting hole;
the small-diameter section of the movable pin is also provided with a radial limiting hole, and the radial fire transfer hole is closer to the annular step surface in the middle of the movable pin than the radial limiting hole;
in an initial state, the radial limiting hole of the movable pin is coaxial with the limiting pin mounting blind hole of the body; the limiting pin is arranged in the radial limiting hole of the movable pin and the limiting pin mounting blind hole of the body.
Furthermore, the explosion-proof mechanism also comprises a pressing cap and a sealing ring II;
mounting limiting steps are processed in the middle of the ignition tube mounting hole I and the ignition tube mounting hole II, and internal threads are processed at the top of the ignition tube mounting hole I and the top of the ignition tube mounting hole II;
the ignition tube I is sleeved with a sealing ring II and then is installed in an ignition tube installation hole I, the sealing ring II is abutted to an installation limiting step of the ignition tube installation hole I, and a pressing cap is screwed into the ignition tube installation hole I through threads and tightly pressed on the ignition tube I to fix the ignition tube I;
after another sealing ring II is sleeved on the ignition tube II, the ignition tube II is installed in an ignition tube installation hole II, the sealing ring II is abutted to an installation limiting step of the ignition tube installation hole II, and another pressing cap is screwed into the ignition tube installation hole II through threads and tightly pressed on the ignition tube II to fix the ignition tube II.
Furthermore, the explosion-proof mechanism also comprises a sealing ring I;
the outer periphery of the large-diameter section of the movable pin is provided with a sealing groove for installing a sealing ring, and the sealing ring I is arranged in the sealing groove.
Has the advantages that:
(1) The utility model discloses borrow the reference of the pusher design thinking, through the work order of time sequence control safety flame proof structure, guaranteed the operational safety under the service state, guarantee the operational reliability of safety flame proof structure through structural design and assembly process, if the time sequence setting is correct, can realize that the rocket normally works; if the time sequence setting error occurs, the ignition tube II works first, high-pressure gas is discharged along the notch on the movable pin due to the staggered fire transfer channels, the central explosion tube cannot be ignited, the bomb is a dummy bomb, and the accident that people are injured by explosion cannot occur.
(2) The utility model discloses a flame proof mechanism still includes the spacer pin, and when initial condition, the spacer pin is installed in the spacer pin installation blind hole of the radial spacing hole of activity round pin and body, can restrict the horizontal slip of activity round pin.
(3) The utility model discloses a flame proof mechanism still includes sealing washer I, and sealing washer I is installed in the sealed recess of the outer periphery processing of the big footpath section of activity round pin, and gas leakage can not appear in the column cavity between the big footpath end that sealed lid and sealing washer I can guarantee the activity round pin.
Drawings
FIG. 1 is a structural diagram of the flameproof mechanism of the present invention when not in operation;
FIG. 2 is a structural composition diagram of the flame-proof mechanism of the utility model when in operation;
the igniter comprises a body 1, a limiting pin 2, an igniter tube II 3, an igniter tube I4, a pressure cap 5, a sealing cover 6, a movable pin 7, a sealing ring I8, a sealing ring II 9 and a central tube explosion mounting hole 10.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of examples.
This embodiment provides a low-cost safe flame proof mechanism for central booster rocket, refer to fig. 1-2, include: the ignition device comprises a body 1, a limiting pin 2, an ignition tube II 3, an ignition tube I4, a pressing cap 5, a sealing cover 6, a movable pin 7, a sealing ring I8 and a sealing ring II 9;
a movable pin mounting hole is formed in the body 1 and is a stepped through hole, namely a step surface is formed in the middle of the movable pin mounting hole, and an internal thread is formed in the large-diameter end of the stepped through hole; the body 1 is further provided with two ignition tube mounting holes communicated with the movable pin mounting hole, the two ignition tube mounting holes are respectively an ignition tube mounting hole I and an ignition tube mounting hole II, the axes of the ignition tube mounting hole I and the ignition tube mounting hole II are respectively vertical to the axis of the movable pin mounting hole, the ignition tube mounting hole I is intersected with the large-diameter section of the movable pin mounting hole, the ignition tube mounting hole II is intersected with the small-diameter section of the movable pin mounting hole, namely the ignition tube mounting hole I and the ignition tube mounting hole II are respectively positioned on two sides of the step surface of the movable pin mounting hole; mounting limiting steps are processed in the middle of the ignition tube mounting hole I and the ignition tube mounting hole II, and internal threads are processed at the top of the ignition tube mounting hole I and the top of the ignition tube mounting hole II; a central tube-bursting mounting hole 10 communicated with the movable pin mounting hole is further processed on the body 1, the central tube-bursting mounting hole 10 is coaxial with the igniter tube mounting hole II, and the central tube-bursting is mounted in the central tube-bursting mounting hole 10 of the body 1; a limiting pin mounting blind hole penetrating through the movable pin mounting hole is further processed on the body 1, and the axis of the limiting pin mounting blind hole is perpendicular to the axis of the movable pin mounting hole;
the ignition tube I4 is sleeved with a sealing ring II 9 and then is installed in the ignition tube installation hole I, the sealing ring II 9 abuts against an installation limiting step of the ignition tube installation hole I, and a pressing cap 5 is screwed into the ignition tube installation hole I through threads and tightly pressed on the ignition tube I4 to fix the ignition tube I4;
the ignition tube II 3 is sleeved with another sealing ring II 9 and then is installed in the ignition tube installation hole II, the sealing ring II 9 is abutted to an installation limiting step of the ignition tube installation hole II, and the other pressing cap 5 is screwed into the ignition tube installation hole II through threads and tightly pressed on the ignition tube II 3, so that the ignition tube II 3 is fixed;
the sealing cover 6 is provided with external threads, is connected and installed at the end part of the large-diameter section of the movable pin installation hole of the body 1 through threads, and seals the end part;
the movable pin 7 is a stepped cylindrical rod, a radial fire transfer hole and a radial limiting hole are machined in the small-diameter section of the movable pin 7, and the radial fire transfer hole is closer to an annular step surface in the middle of the movable pin 7 than the radial limiting hole; the movable pin 7 is arranged in the movable pin mounting hole of the body 1, the large-diameter section of the movable pin 7 is matched with a large-diameter section hole shaft of the movable pin mounting hole of the body 1, and the small-diameter section of the movable pin 7 is matched with a small-diameter section hole shaft of the movable pin mounting hole of the body 1;
in an initial state, referring to the attached drawing 1, a radial limiting hole of the movable pin 7 is coaxial with a limiting pin mounting blind hole of the body 1, a columnar cavity is reserved between a large-diameter end of the movable pin 7 and the sealing cover 6, and the columnar cavity is communicated with an ignition tube mounting hole I of the body 1; the limiting pin 2 is arranged in a radial limiting hole of the movable pin 7 and a limiting pin mounting blind hole of the body 1, and the limiting pin 2 can limit the movable pin 7 to slide left and right;
after the explosion-proof mechanism works, the movable pin 7 moves leftwards according to the direction shown in the figure until the annular step surface of the movable pin 7 abuts against the step surface of the movable pin mounting hole of the body 1, as shown in the figure 2, at the moment, the radial fire transmission hole of the movable pin 7 is communicated with the ignition tube mounting hole II and the central explosion tube mounting hole 10;
the outer circumferential surface of the large-diameter section of the movable pin 7 is provided with a sealing groove for mounting a sealing ring, and a sealing ring I8 is mounted in the sealing groove; the sealing cover 6 and the sealing ring I8 can ensure that gas leakage cannot occur in a cylindrical cavity between the large-diameter end of the movable pin 7 and the sealing cover 6.
The working principle is as follows: the ignition tube I4 is connected with the electronic delayer I, the ignition tube II 3 is connected with the electronic delayer II, when the explosion-proof mechanism works, the electronic delayer I firstly ignites the ignition tube I4, high-temperature and high-pressure gas generated by the ignition tube I4 pushes the movable pin 7 to move leftwards, after the limit pin 2 is cut short, the movable pin 7 continues to move forwards until an annular step surface of the movable pin 7 abuts against a step surface of a movable pin mounting hole of the body 1, and at the moment, the output end of the ignition tube II 3, a radial fire transfer hole of the movable pin 7 and the detonation end of the central explosion tube are aligned; then, an ignition tube II 3 is ignited through an electronic time delay device II, and high-temperature and high-pressure gas generated by the ignition tube II 3 detonates the central explosion tube through a radial fire transmission hole of the movable pin 7.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a be applied to low-cost safe flame proof mechanism of center explosive tube formula rocket which characterized in that includes: the ignition device comprises a body, an ignition tube II, an ignition tube I, a sealing cover and a movable pin;
the movable pin mounting hole, an igniter tube mounting hole I, an igniter tube mounting hole II and a central detonator mounting hole are processed on the body, the igniter tube mounting hole I is communicated with the movable pin mounting hole, the movable pin mounting hole is a stepped through hole, and the axes of the igniter tube mounting hole I and the igniter tube mounting hole II are respectively vertical to the axis of the movable pin mounting hole; the central cartridge igniter mounting hole is coaxial with the igniter mounting hole II, and the central cartridge igniter is mounted in the central cartridge igniter mounting hole of the body;
the ignition tube I is arranged in the ignition tube mounting hole I; the ignition tube II is arranged in the ignition tube mounting hole II;
the sealing cover is arranged at the end part of the large-diameter section of the movable pin mounting hole of the body and seals the end;
the movable pin is a stepped cylindrical rod, and a radial fire transfer hole is processed in the small-diameter section of the movable pin; the movable pin is arranged in a movable pin mounting hole of the body; in an initial state, a columnar cavity is reserved between the large-diameter end of the movable pin and the sealing cover, and the columnar cavity is communicated with the ignition tube mounting hole I of the body; when the explosion-proof mechanism works, the annular step surface of the movable pin is abutted against the step surface of the movable pin mounting hole of the body, and the radial fire transfer hole of the movable pin is communicated with the ignition tube mounting hole II and the central explosion tube mounting hole.
2. A low-cost safe flameproof mechanism applied to a central booster rocket as claimed in claim 1, wherein said igniter mounting hole i intersects with the large diameter section of the movable pin mounting hole, and said igniter mounting hole ii intersects with the small diameter section of the movable pin mounting hole; when the removable pin was installed in the removable pin mounting hole of body, the big footpath section of removable pin and the big footpath section hole axle cooperation of the removable pin mounting hole of body, the path section of removable pin and the path section hole axle cooperation of the removable pin mounting hole of body.
3. A low-cost safe flameproof mechanism applied to a central booster rocket according to claim 2, wherein the flameproof mechanism further comprises a spacer pin;
a limit pin mounting blind hole penetrating through the movable pin mounting hole is further processed on the body, and the axis of the limit pin mounting blind hole is perpendicular to the axis of the movable pin mounting hole;
the small-diameter section of the movable pin is also provided with a radial limiting hole, and the radial fire transfer hole is closer to the annular step surface in the middle of the movable pin than the radial limiting hole;
in an initial state, the radial limiting hole of the movable pin is coaxial with the limiting pin mounting blind hole of the body; the limiting pin is installed in the radial limiting hole of the movable pin and the limiting pin installation blind hole of the body.
4. A low cost safe flameproof mechanism applied to a central booster rocket according to any of claims 1 to 3, wherein the flameproof mechanism further comprises a pressure cap and a sealing ring II;
mounting limiting steps are processed in the middle of the ignition tube mounting hole I and the ignition tube mounting hole II, and internal threads are processed at the top of the ignition tube mounting hole I and the top of the ignition tube mounting hole II;
the ignition tube I is sleeved with a sealing ring II and then is installed in an ignition tube installation hole I, the sealing ring II is abutted to an installation limiting step of the ignition tube installation hole I, and a pressing cap is screwed into the ignition tube installation hole I through threads and tightly pressed on the ignition tube I to fix the ignition tube I;
after another sealing ring II is sleeved on the ignition tube II, the ignition tube II is installed in an ignition tube installation hole II, the sealing ring II is abutted to an installation limiting step of the ignition tube installation hole II, and another pressing cap is screwed into the ignition tube installation hole II through threads and tightly pressed on the ignition tube II to fix the ignition tube II.
5. A low cost safe flameproof mechanism applied to a central booster rocket according to any of claims 1 to 3, wherein the flameproof mechanism further comprises a seal ring i;
the outer periphery of the large-diameter section of the movable pin is provided with a sealing groove for installing a sealing ring, and the sealing ring I is arranged in the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222348751.5U CN218583899U (en) | 2022-09-02 | 2022-09-02 | Low-cost safe explosion-proof mechanism applied to central tube-burst rocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222348751.5U CN218583899U (en) | 2022-09-02 | 2022-09-02 | Low-cost safe explosion-proof mechanism applied to central tube-burst rocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218583899U true CN218583899U (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222348751.5U Active CN218583899U (en) | 2022-09-02 | 2022-09-02 | Low-cost safe explosion-proof mechanism applied to central tube-burst rocket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218583899U (en) |
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2022
- 2022-09-02 CN CN202222348751.5U patent/CN218583899U/en active Active
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