CN217405322U - Missile-borne self-locking inertia switch - Google Patents
Missile-borne self-locking inertia switch Download PDFInfo
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- CN217405322U CN217405322U CN202220605695.6U CN202220605695U CN217405322U CN 217405322 U CN217405322 U CN 217405322U CN 202220605695 U CN202220605695 U CN 202220605695U CN 217405322 U CN217405322 U CN 217405322U
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Abstract
The utility model discloses a missile-borne self-locking inertia switch, which comprises a shell (1), wherein a locking ring (2) is arranged in the shell (1), locking channels (7) which are axially distributed are arranged in the middle part of the locking ring (2), a mass block (3) is arranged in each locking channel (7), and a locking mechanism which is matched with the mass block (3) is arranged in each locking ring (2); a contact plate component (6) positioned below the locking channel (7) is also arranged in the shell (1); the mass block applies pressing force to the lock spring through the lock ball, and after the mass block is subjected to overload impact, the mass block breaks the pressing force of the lock ball and the lock spring, falls to the lowest point and compresses the contact plate component to complete the triggering process; when the mass block is at the lowest point, the lock bead resets under the action of the spring force of the lock spring, so that the lock bead is in contact with the mass block to fix the mass block in a locking state to form self-locking. The utility model discloses not only have the locking function, can also effectively prevent the emergence of spurious triggering phenomenon.
Description
Technical Field
The utility model relates to an inertia switch, especially a missile-borne auto-lock inertia switch.
Background
Conventional ammunition hard target warheads often use inertia triggered fuzes to detonate the warhead. When the warhead reaches the target area, the fuse completes all the relief functions and is in a standby state, and the fuse is needed to judge that the warhead contacts the target, so that a detonation signal is given. The inertial switch is one of the common components used to trigger fuses, one of which is to control the operating state of the circuit. The inertia switch is closed after sensing a certain overload impact generated in the process of carrier emission or collision, a stable electric signal is sent to the fuse, and the fuse works after receiving the signal. The inertial switch has wide requirements in fuses, especially electromechanical fuses, and is an important component for realizing triggering detonation or landing self-destruction functions of the electromechanical fuses.
The current common inertial switch adopts the design scheme of a spring and a mass block, wherein the mass block is used as a moving electrode, and the spring is compressed to move under the action of impact overload until the mass block is contacted with the other electrode to close the switch. However, the conventional inertia switch can only realize instant conduction, so that the control of the closing time of the inertia switch is inaccurate, and false triggering is easily caused under the non-triggering requirements of transportation and the like; in addition, the contact reliability of the existing inertia switch contact is poor, and the carrier is easy to not trigger. Therefore, the prior art has the problems of no locking function and easy occurrence of false triggering phenomenon.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a missile-borne auto-lock inertial switch. The utility model discloses not only have the locking function, can also effectively prevent the emergence of spurious triggering phenomenon.
The technical scheme of the utility model: the spring-loaded self-locking inertia switch comprises a shell, wherein a locking ring is arranged in the shell, locking channels which are axially distributed are arranged in the middle of the interior of the locking ring, a mass block is arranged in each locking channel, and a locking mechanism matched with the mass block is arranged in the locking ring; a contact plate member is also disposed within the housing below the locking channel.
In the missile-borne self-locking inertial switch, the locking mechanism comprises a radial channel matched with the locking channel, and a locking spring and a locking ball are respectively arranged in the radial channel.
In the above-mentioned spring-loaded self-locking inertial switch, the lock bead is matched with the mass block.
In the missile-borne self-locking inertial switch, 3 annularly distributed radial channels are arranged in the locking ring, and a locking spring and a locking ball are arranged in each radial channel.
Compared with the prior art, the utility model discloses constitute by casing, locking ring, quality piece, locking mechanical system and contact plate part, the overload impact who gives through the system makes the quality piece break through the constraint of locking mechanical system and compresses the button on the contact plate part under the inertial force effect, and makes contact plate part form the route, and accomplishes the auto-lock to the quality piece under the constraint of locking mechanical system, the utility model discloses be in the normal close state after realizing the function, the quality piece can restore to the original state through the magnetic force reset of external application, has realized the utility model discloses a can test the nature repeatedly; the device has the characteristics of testability, high reliability, self-locking and the like, can effectively prevent false triggering caused by accidental impact, and can ensure the continuity and stability of switch power connection. The utility model discloses a weight and stroke, lock pearl and the locking mechanical system's that the locking spring is constituteed locking mechanical system's of design quality piece locking force has impacted down at different inertia and can both realize the inertia switch route, is fit for multiple ammunition fuze, has wide application prospect and practical value. The utility model has the advantages that the whole structure is simple single, and the equipment is convenient, and the action stroke of quality piece can effectively realize preventing that accidental impact leads to the spurious triggering, and the security is ensured. To sum up, the utility model discloses not only have the locking function, can also effectively prevent the emergence of spurious triggering phenomenon.
Drawings
Fig. 1 is a schematic structural view of the present invention (in an initial state);
fig. 2 is a state diagram of the present invention in a critical state;
fig. 3 is a state diagram of the present invention in the locked state.
The symbols in the drawings are: 1-housing, 2-locking ring, 3-mass, 4-locking ball, 5-locking spring, 6-contact plate component, 7-locking channel, 8-radial channel.
Detailed Description
The present invention will be further described with reference to the drawings and examples, which should not be construed as a limitation to the present invention.
Examples are given. A spring-loaded self-locking inertial switch is shown in figures 1 to 3 and comprises a shell 1, wherein a locking ring 2 is arranged in the shell 1, locking channels 7 which are axially distributed are arranged in the middle of the locking ring 2, mass blocks 3 are arranged in the locking channels 7, and locking mechanisms matched with the mass blocks 3 are arranged in the locking ring 2; also provided in the housing 1 is a contact plate member 6 located below the locking channel 7.
The locking mechanism comprises a radial channel 8 matched with the locking channel 7, and a locking spring 5 and a locking ball 4 are respectively arranged in the radial channel 8.
The locking bead 4 cooperates with the mass 3.
The locking ring 2 is internally provided with 3 annular distributed radial passages 8, and each radial passage 8 is internally provided with a locking spring 5 and a locking ball 4.
A method for loading the self-locking inertia switch of the bullet, the mass block gives the pressing force of the lock spring through the lock ball, after the overload that the mass block receives is assaulted, the mass block breaks the pressing force of lock ball and lock spring, fall to the lowest point and compress the contact plate part, finish the triggering process; when the mass block is at the lowest point, the lock bead resets under the action of the spring force of the lock spring, so that the lock bead is contacted with the mass block to fix the mass block in a locking state to form self-locking.
When other conditions are constant and the overload value is smaller than the design value, the inertia force of the mass block is smaller than the maximum elastic force of the locking mechanism, the mass block cannot get rid of the constraint of the locking mechanism, and along with the gradual reduction of the overload value, the mass block finally rebounds and resets to the initial position, and at the moment, a passage cannot be formed. When the overload value reaches the design value, the inertia force of the mass block is larger than the maximum elastic force of the locking mechanism, the mass block breaks away from the constraint of the locking mechanism and continues to move downwards along the action channel, the mass block compresses the button of the contact plate component, the switch forms a passage, the locking mechanism locks the mass block through the elastic force of the locking mechanism and does not rebound, the self-locking function is realized, and the reliability is enhanced.
The utility model discloses be in normally closed state after realizing the function, the outside magnetic force of applying of quality piece accessible resets, makes the quality piece resume original state, has realized the utility model discloses a retest ability repeatedly.
The utility model can realize the circuit connection function by three states and two processes, concretely comprises the following steps,
the mass block applies a pressing force to the lock spring through the lock bead, the state that the lock spring is not deformed is an original state, the state that the mass block compresses the lock spring to the shortest time is a critical state, the contact plate part forms a passage, and the mass block is in a locking state when being locked by the lock bead. The process of the mass moving from the original state to the critical state is a falling process, and the process of the mass moving from the critical state to the locking state is a triggering process.
Claims (4)
1. Missile-borne self-locking inertial switch, its characterized in that: the device comprises a shell (1), wherein a locking ring (2) is arranged in the shell (1), locking channels (7) which are axially distributed are arranged in the middle of the locking ring (2), mass blocks (3) are arranged in the locking channels (7), and locking mechanisms matched with the mass blocks (3) are arranged in the locking ring (2); a contact plate component (6) positioned below the locking channel (7) is also arranged in the shell (1).
2. The missile-borne self-locking inertial switch of claim 1, wherein: the locking mechanism comprises a radial channel (8) matched with the locking channel (7), and a locking spring (5) and a locking bead (4) are respectively arranged in the radial channel (8).
3. The missile-borne self-locking inertial switch of claim 2, wherein: the lock bead (4) is matched with the mass block (3).
4. The missile-borne self-locking inertial switch according to claim 2, wherein: the locking ring (2) is internally provided with 3 annular distributed radial channels (8), and each radial channel (8) is internally provided with a locking spring (5) and a locking bead (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220605695.6U CN217405322U (en) | 2022-03-21 | 2022-03-21 | Missile-borne self-locking inertia switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220605695.6U CN217405322U (en) | 2022-03-21 | 2022-03-21 | Missile-borne self-locking inertia switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217405322U true CN217405322U (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220605695.6U Active CN217405322U (en) | 2022-03-21 | 2022-03-21 | Missile-borne self-locking inertia switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN217405322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674184A (en) * | 2022-03-21 | 2022-06-28 | 上海汉未科技有限公司 | Missile-borne self-locking inertial switch and method |
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2022
- 2022-03-21 CN CN202220605695.6U patent/CN217405322U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674184A (en) * | 2022-03-21 | 2022-06-28 | 上海汉未科技有限公司 | Missile-borne self-locking inertial switch and method |
| CN114674184B (en) * | 2022-03-21 | 2024-03-01 | 杭州汉未机电有限公司 | Missile-borne self-locking inertial switch and method |
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